U.S. patent application number 17/064925 was filed with the patent office on 2021-01-28 for charger.
This patent application is currently assigned to MAKITA CORPORATION. The applicant listed for this patent is MAKITA CORPORATION. Invention is credited to Kiyozumi KOKAWA, Hidenori NAGASAKA, Shinsuke OKUDA, Yasuhiro TABUCHI, Hideyuki TAGA.
Application Number | 20210028634 17/064925 |
Document ID | / |
Family ID | 1000005135113 |
Filed Date | 2021-01-28 |
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United States Patent
Application |
20210028634 |
Kind Code |
A1 |
TAGA; Hideyuki ; et
al. |
January 28, 2021 |
CHARGER
Abstract
A pair of right and left fixing holes and a pair of strap
attachment holes are provided on a rear surface of a main body
housing at a position which does not protrude from a side area S in
a planar view. A bottom edge portion of an upper recessed portion
is provided above the fixing hole to cover each of the right and
left fixing holes, the strap attachment holes are provided to be
coaxial with the bottom edge portion, and it is ensured that
durability and compactness of the charger are obtained.
Inventors: |
TAGA; Hideyuki; (Anjo-shi,
JP) ; TABUCHI; Yasuhiro; (Anjo-shi, JP) ;
NAGASAKA; Hidenori; (Anjo-shi, JP) ; KOKAWA;
Kiyozumi; (Anjo-shi, JP) ; OKUDA; Shinsuke;
(Anjo-shi, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
MAKITA CORPORATION |
Anjo-shi |
|
JP |
|
|
Assignee: |
MAKITA CORPORATION
Anjo-shi
JP
|
Family ID: |
1000005135113 |
Appl. No.: |
17/064925 |
Filed: |
October 7, 2020 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
15869779 |
Jan 12, 2018 |
10840717 |
|
|
17064925 |
|
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|
14400683 |
Nov 12, 2014 |
9906055 |
|
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PCT/JP2013/064729 |
May 28, 2013 |
|
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15869779 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01M 10/052 20130101;
H02J 7/0045 20130101; H01M 10/46 20130101; H02J 7/0013 20130101;
H02J 7/0042 20130101 |
International
Class: |
H02J 7/00 20060101
H02J007/00; H01M 10/46 20060101 H01M010/46 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 20, 2012 |
JP |
2012-138952 |
Jun 20, 2012 |
JP |
2012-138953 |
Jun 20, 2012 |
JP |
2012-138954 |
Jun 20, 2012 |
JP |
2012-138955 |
Jun 20, 2012 |
JP |
2012-138956 |
Jun 20, 2012 |
JP |
2012-138957 |
Claims
1. A charger used for charging a rechargeable battery, comprising:
a main body housing including an upper housing and a lower housing;
a bottom surface formed in the lower housing; a bottom center
portion provided in the bottom surface such that a plurality of
charger function parts are mountable thereon in an interior of the
main body housing; a bottom circumferential portion provided in the
bottom surface, the bottom circumferential portion surrounding the
bottom center portion and including four sides of the bottom
surface; and a finger hook portion provided in areas including at
least two sides of the four sides in the bottom circumferential
portion so as to be configured to increase efficiency in hooking a
finger thereon compared to on the bottom center portion.
2. The charger according to claim 1, wherein the bottom
circumferential portion including the finger hook portion protrudes
to an outside of the main body housing further than the bottom
center portion.
3. The charger according to claim 1, wherein the finger hook
portion is provided over an entire circumference of the bottom
circumferential portion.
4. The charger according to claim 1, further comprising a center
step portion in the bottom center portion, the center step portion
protruding to the outside of the main body housing so as to expand
an internal capacity of the main body housing.
5. The charger according to claim 4, wherein the center step
portion protrudes to the outside of the main body housing in a same
height as the bottom circumferential portion.
6. The charger according to claim 1, further comprising a leg in
each of four corners of the finger hook portion, wherein the
charger is placed on a worktable via the leg.
7. The charger according to claim 1, further comprising a pair of
charger hook portions on the bottom surface so as to mount the
charger on a wall surface in a wall-hanging state.
8. A charger used for charging a rechargeable battery, comprising:
a main body housing including an upper housing and a lower housing;
a bottom surface formed in the lower housing; a bottom center
portion provided in the bottom surface such that a plurality of
charger function parts are mountable thereon in an interior of the
main body housing; a bottom circumferential portion provided in the
bottom surface, the bottom circumferential portion surrounding the
bottom center portion and including four sides of the bottom
surface; and a finger hook portion that is provided over an entire
circumference of the bottom circumferential portion and protrudes
to an outside of the main body housing further than the bottom
center portion, thereby increasing efficiency in hooking a finger
thereon compared to on the bottom center portion.
9. The charger according to claim 8, further comprising a center
step portion in the bottom center portion, the center step portion
protruding to the outside of the main body housing so as to expand
an internal capacity of the main body housing.
10. The charger according to claim 9, wherein the center step
portion protrudes to the outside of the main body housing in a same
height as the bottom circumferential portion.
11. The charger according to claim 10, further comprising a leg in
each of four corners of the finger hook portion, wherein the
charger is placed on a worktable via the leg.
12. The charger according to claim 11, further comprising a pair of
charger hook portions on the bottom surface so as to mount the
charger on a wall surface in a wall-hanging state.
13. A charger used for charging a rechargeable battery, comprising:
a main body housing including an upper housing and a lower housing;
a bottom surface formed in the lower housing; a bottom center
portion provided in the bottom surface such that a plurality of
charger function parts are mountable thereon in an interior of the
main body housing; a bottom circumferential portion provided in the
bottom surface, the bottom circumferential portion surrounding the
bottom center portion and including four sides of the bottom
surface; a finger hook portion that is provided over an entire
circumference of the bottom circumferential portion and protrudes
to an outside of the main body housing further than the bottom
center portion, thereby increasing efficiency in hooking a finger
thereon compared to on the bottom center portion; a leg in each of
four corners of the finger hook portion, via which the charger is
placed on a worktable; and a pair of charger hook portions on the
bottom surface so as to mount the charger on a wall surface in a
wall-hanging state.
14. The charger according to claim 13, further comprising a center
step portion in the bottom center portion, the center step portion
protruding to the outside of the main body housing so as to expand
an internal capacity of the main body housing.
15. The charger according to claim 14, wherein the center step
portion protrudes to the outside of the main body housing in a same
height as the bottom circumferential portion.
Description
[0001] This is a Continuation of U.S. application Ser. No.
15/869,779, filed Jan. 12, 2018, which is a Division of U.S.
application Ser. No. 14/400,683 filed Nov. 12, 2014, which is a
National Stage of International Application No. PCT/2013/064729
filed May 28, 2013, which claims the benefit of Japanese
Application No. 2012-138952 filed Jun. 20, 2012, Japanese
Application No. 2012-138953 filed Jun. 20, 2012, Japanese
Application No. 2012-138954 filed Jun. 20, 2012, Japanese
Application No. 2012-138955 filed Jun. 20, 2012, Japanese
Application No. 2012-138956 filed Jun. 20, 2012, and Japanese
Application No. 2012-138957 filed Jun. 20, 2012. The disclosures of
the prior applications are hereby incorporated by reference herein
in their entireties.
BACKGROUND OF THE INVENTION
Field of the Invention
[0002] The present invention relates to a charger for charging a
battery pack (secondary battery) used as a power source, for
example in an electric tool such as a chargeable type screw
fastening machine.
Description of the Related Art
[0003] This kind of battery pack is detached from a tool main body
and is charged by a separately prepared charger, and thus, the
battery pack can be repeatedly used. With respect to the charger,
in order to improve the function or increase the usability, various
methods have been performed in the related art. For example,
Japanese Laid-Open Patent Publication No. 2009-296724 below
discloses a technology to increase usability when the battery pack
is attached and detached in the situation where the charger is a
wall-hanging type charger.
[0004] However, it is necessary to further improve the wall-hanging
structure of the related art as follows. In the wall-hanging
structure of the related art, a so-called tumbler-shaped hole is
provided on a bottom surface of the charger, and the charger is
maintained in a wall-hanging state in a state where a protrusion
provided on a wall side is hooked on the tumbler-shaped hole and is
hung. Accordingly, for example, when a person carelessly comes into
contact with the charger, or the like, positional deviation of the
charger occurs, and when large positional deviation occurs, there
is a concern that the protrusion may become disengaged from the
tumbler-shaped hole or the like, and thus, there is a problem in
that the wall-hanging state of the charger is not stable.
[0005] According to the present embodiment, the positional
deviation does not occur even when a person carelessly comes into
contact with the charger or the like, and the charger can be hung
in a more stable state on the wall.
SUMMARY OF THE INVENTION
[0006] The above-described problems are solved by the following
embodiments.
[0007] According to a first embodiment, there is provided a charger
that can be mounted in a bottom surface of a main body housing
along a wall surface in a wall-hanging posture. The charger
includes a battery attachment portion to which a battery pack
downwardly slides to attach and from which the battery pack
upwardly slides to detach in the wall-hanging posture. The charger
is provided with a regulating member that engages with the wall
surface in a concave-convex way. The regulating member regulates a
relative displacement of the main body housing with respect to the
wall surface in a detachment direction of the battery pack.
[0008] According to the first embodiment, in the wall-hanging
mounting state, the relative displacement (the upward relative
displacement) in the battery detachment direction of the charger is
regulated by the regulating portion. Accordingly, when the battery
pack slides from the battery attachment portion to the upper
portion and is detached, a user does not need to press the charger
so that the charger is not positionally deviated upward, the user
slides the battery pack to the upper portion while grasping the
battery pack with one hand, and thus, the battery pack can be
simply detached. Therefore, the user can detach the charged battery
pack with one hand from the charger in a state where the user holds
a tool with the other hand, and in this regard, usability
(operability) of the charger can be increased.
[0009] According to a second embodiment, in the first embodiment,
the main body housing may include a two-piece structure in which a
lower divided housing on the wall surface side and an upper divided
housing that has the battery pack attachment portion are butted
against each other at a joining surface along the wall surface. A
lower recessed portion that is inwardly recessed in a side face
area in a planar view of the main body housing may be provided in
the lower divided housing. A fixing hole for screwing the main body
housing to the wall surface may be provided on a bottom edge
portion of the lower recessed portion. And, a fixing screw that is
inserted through the fixing hole for screw-fastening may function
as the regulating member.
[0010] According to the second embodiment, the main body housing is
screwed via the fixing hole, and compared to a hooked state in
which only a tumbler-shaped hole is used, the main body housing can
be mounted in a stable wall-hanging posture.
[0011] Moreover, since the fixing hole is provided on the bottom
edge portion provided at the position which does not protrude from
the side area in a planar view of the main body housing, even when
the charger drops or the like, damage to the bottom edge portion
can be prevented in advance, and thus, the thickness of the bottom
edge portion is decreased, and durability of the main body housing
can be increased while the required length of the fixing screw is
shortened.
[0012] Moreover, since the screwing is performed via the fixing
hole of the lower divided housing side, as compared to when the
screwing is performed via the fixing hole of the upper divided
housing side, the length of the fixing screw can be shortened.
[0013] According to a third embodiment, in the second embodiment,
an upper recessed portion may be provided in the upper divided
housing at the same position as the lower recessed portion in a
planar view, and a bottom edge portion of the upper recessed
portion may be positioned in the upper portion of the fixing
hole.
[0014] According to the third embodiment, the bottom edge portion
of the upper recessed portion is disposed to cover the upper
portion of the bottom edge portion of the lower recessed portion on
which the fixing hole is provided, and in this regard, the bottom
edge portion of the lower recessed portion is not easily
damaged.
[0015] According to a fourth embodiment, in the third embodiment, a
through-hole that is coaxial with the fixing hole may be provided
in the bottom edge portion of the upper recessed portion.
[0016] According to the fourth embodiment, the through-hole of the
upper recessed portion side is used as an operating hole into which
a driver (screwdriver) is inserted, and thus, fastening a fixing
screw to the fixing hole is easily performed.
[0017] Moreover, the upper divided housing and the lower divided
housing are provided and the fixing hole and the through-hole are
provided, and when the housings are manufactured by resin molding,
a molding die can be simplified.
[0018] According to a fifth embodiment, in the fourth embodiment,
the through-hole may function as a strap attachment hole for
attaching a strap for carrying the charger on the shoulder.
[0019] According to the fifth embodiment, the charger can be
carried in the state where the charger is shouldered, and the
function of the through-hole provided on the bottom edge portion of
the upper recessed portion can be increased. Moreover, both the
attachment hole of the strap for carrying on the shoulder and the
fixing hole for the wall-hanging are provided at positions which do
not protrude from the side area in a planar view, and thus, the
sizes of the main body housing and the charger can be decreased
while respective strength is secured.
[0020] According to a sixth embodiment, in the first embodiment,
hook portions and regulating portions that are used for wall
mounting may be provided in four corners of the bottom surface.
Recessed hook portions may be provided in a pair of upper right and
left hook portions. Hook convex portions provided on the wall
surface side may be configured to be hooked over the recessed hook
portions such that displacement of the main body housing is
regulated in downward and right-left directions with respect to the
wall surface and in a direction away from the wall surface. And,
the regulating portions may be provided on the right and left sides
in pairs and positioned below an engaging convex portion provided
on the wall surface side, and the engaging convex portion may
function as the regulating member.
[0021] According to the sixth embodiment, the charger is mounted on
the wall surface in the state where the positional deviation in
both the up and the down directions (attachment and detachment
directions of the battery pack) is regulated. Accordingly, when the
battery pack slides toward the lower portion with respect to the
battery attachment portion and is attached to the charger in the
wall-hanging state, the user does not need to press the charger
with a hand so that the charger is not displaced downward, and if
the user slides the battery pack while grasping the battery pack
with one hand, it is possible to rapidly and simply attach the
battery pack to the battery attachment portion. Moreover,
conversely, when the battery pack is detached from the battery
attachment portion, it is sufficient if the user slides the battery
pack to the upper portion while grasping the battery pack with one
hand, and the user does not need to press the charger with the
other hand so that the charger itself is not displaced.
[0022] In this way, the user does not need to press the charger so
that the charger does not move, and if the user vertically slides
the battery pack while grasping the battery pack with one hand, the
battery pack can be attached to or detached from the battery
attachment portion, and thus, usability (operability) of the
charger can be increased.
[0023] In addition, since the displacement in the up-down and
right-left directions of the charger and the displacement of the
charger in the direction separated from the wall surface are
regulated, even when a person carelessly comes into contact with
the charger or the like, the positional deviation is assuredly
prevented.
[0024] According to a seventh embodiment, in the sixth embodiment,
in the lower regulating portion, the upper surface may be provided
to be perpendicular to the wall surface or to be inclined in a
direction at an acute angle in which a tip side is upwardly
displaced.
[0025] According to the seventh embodiment, the engagement state to
the upper portion of the regulation portion with respect to the
engagement convex portion is securely maintained, and the
displacement in the detachment direction of the charger is
regulated. Thus, usability of the charger can be more assuredly
increased.
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] FIG. 1 is an overall perspective view when a charger
according to an embodiment is viewed from an obliquely upper right
side.
[0027] FIG. 2 is an overall perspective view when the charger
according to an embodiment is viewed in an arrow (II) direction of
FIG. 1 and the rear surface side of the charger is viewed from an
obliquely upper left side.
[0028] FIG. 3 is an overall perspective view when the charger
according to an embodiment is viewed in an arrow (III) direction of
FIG. 1 and the rear surface side of the charger is viewed from an
obliquely upper right side.
[0029] FIG. 4 is an overall perspective view when the charger
according to an embodiment is viewed in an arrow (IV) direction of
FIG. 1 and the rear surface side of the charger is viewed from an
obliquely upper side.
[0030] FIG. 5 is an overall plan view of the charger according to
an embodiment.
[0031] FIG. 6 is a perspective view of a slide attachment type
battery pack.
[0032] FIG. 7 is an overall perspective view of a chargeable type
electric plane.
[0033] FIG. 8 is a plan view showing a side area in a planar view
of the charger according to an embodiment.
[0034] FIG. 9 is a perspective view of a recessed portion on a rear
surface side and a right end of a main body housing.
[0035] FIG. 10 is a perspective view when the charger according to
an embodiment is flipped upside down and the bottom surface side is
directed upward.
[0036] FIG. 11 is a schematic view when the charger mounted in a
wall-hanging state is viewed from the right surface side.
[0037] FIG. 12 is a plan view of the charger in a state where a
strap for carrying on the shoulder is attached.
[0038] FIG. 13 is an overall perspective view when the charger
according to an embodiment is viewed from an obliquely upper right
side. This figure shows a state where a terminal cover in a first
left-end battery attachment portion is disassembled.
[0039] FIG. 14 is a perspective view when a lower divided housing
is viewed from an obliquely upper right side in a state where an
upper divided housing of the charger according to the present
embodiment is detached.
[0040] FIG. 15 is a plan view of the lower divided housing in a
state where the upper divided housing of the charger according to
an embodiment is detached.
[0041] FIG. 16 is a cross-sectional view taken along line
(XVI)-(XVI) of FIG. 15 and is a longitudinal cross-sectional view
in a longitudinal direction of the lower divided housing.
[0042] FIG. 17 is a cross-sectional view taken along line
(XVII-XVII) of FIG. 5. This figure is a longitudinal
cross-sectional view of the charger, and is a longitudinal
cross-sectional view of a first operation display portion.
[0043] FIG. 18 is a plan view of the upper divided housing. This
figure shows the upper divided housing of a single unit state in a
disassembled state where terminal covers of first to fourth battery
attachment portions are detached.
[0044] FIG. 19 is a perspective view when the terminal cover
detached from the battery attachment portion is viewed from the
lower surface side. This figure shows an assembled terminal cover
in which a compression spring is temporarily fixed.
[0045] FIG. 20 is a view showing an assembly procedure of the
terminal cover, and a longitudinal cross-sectional view of the
first battery attachment portion. This figure shows a state just
before the terminal cover is assembled on a cover support seat
portion of the first battery attachment portion.
[0046] FIG. 21 is a view showing the assembly procedure of the
terminal cover, and a longitudinal cross-sectional view of the
first battery attachment portion. This figure shows a state where
insertion of a support boss portion of the terminal cover into a
groove hole starts.
[0047] FIG. 22 is a view showing the assembly procedure of the
terminal cover, and a longitudinal cross-sectional view of the
first battery attachment portion. The figure shows when a front
portion of the compression spring is received and delivered from a
temporarily fixed rib of the terminal cover to a spring receiving
rib of the upper divided housing.
[0048] FIG. 23 is a view showing the assembly procedure of the
terminal cover, and a longitudinal cross-sectional view of the
first battery attachment portion. The figure shows an assembly
completion state in which the front portion of the compression
spring is completely received and delivered to the spring receiving
rib of the upper divided housing and in which fixing screws are
completely fastened.
[0049] FIG. 24 is a cross-sectional view taken along line
(XXIV)-(XXIV) of FIG. 16, and a longitudinal cross-sectional view
when the front side of the charger is positioned downward.
[0050] FIG. 25 is a view showing a second embodiment of the
wall-hanging structure of the charger, and a longitudinal
cross-sectional view of the charger. The figure shows a state where
a lower leg is floated from a wall surface and a hook convex
portion is inserted into an upper leg.
[0051] FIG. 26 is a view showing the second embodiment of the
wall-hanging structure of the charger, and a longitudinal
cross-sectional view of the charger. The figure shows a state where
the charger is displaced to the lower side and the hook convex
portion is hooked to the upper leg.
[0052] FIG. 27 is a view showing the second embodiment of the
wall-hanging structure of the charger, and a longitudinal
cross-sectional view of the charger. The figure shows the
wall-hanging state in which the lower leg abuts the wall
surface.
DETAILED DESCRIPTION OF THE INVENTION
[0053] Next, embodiments of the present invention will be described
with reference to the drawings. As shown in FIGS. 1 to 5, in the
present embodiment, a four-port type charger 10 by which four
battery packs B to B can be attached and charged at one time is
exemplified. The battery pack B (secondary battery) shown in FIG. 6
can be charged by the charger 10.
[0054] The battery pack B is a slide attachment type lithium ion
battery in which a plurality of battery cells Bb to Bb are housed
in a battery case Ba, and as shown in FIG. 7, is used as a power
source of a chargeable type electric tool T such as an electric
plane. The battery pack B can be attached to the chargeable type
electric tool T by sliding the battery pack downward with respect
to a battery attachment portion Ta provided on a rear portion of
the chargeable type electric tool T, and can be detached from the
chargeable type electric tool T by sliding the battery pack upward.
The detachment of the battery pack B from the battery attachment
portion Ta is performed by sliding a lock-releasing lever Bc
provided on the upper surface by a fingertip and by releasing the
engaging state with respect to the battery attachment portion
Ta.
[0055] As shown in FIG. 6, a pair of right and left slide rails Bd
and Bd for slide attachment is provided on an attachment surface
(lower surface of FIG. 6) of the battery pack B. Positive and
negative connection terminal portions Bf and Bf and a communication
connector Be for the charger or a tool are disposed between both
slide rails Bd and Bd.
[0056] As shown in FIG. 1, battery attachment portions 11 to 14
which include four ports are disposed on the upper surface of the
charger 10 in parallel in a right-left direction. Each of the pairs
of right and left receiving rail portions 11a and 11a to 14a and
14a is provided on each of the battery attachment portions 11 to
14. When the battery pack B slides from the rear surface side to
the front surface side with respect to each of the battery
attachment portions 11 to 14 in a state where the slide rails Bd,
Bd are engaged with respect to each of the right and left receiving
rail portions 11a and 11a to 14a and 14a, the battery pack B can be
attached, and when the battery pack B slides in the opposite
direction, the battery pack can be detached. The details of each of
the battery attachment portions 11 to 14 will be described
below.
[0057] Various methods with respect to the four-port type charger
10 of the present embodiment are performed. Hereinafter, this will
be sequentially described. First, the charger 10 includes a main
body housing 20 that has a rectangular shape in a planar view as
shown in FIG. 5. In addition, as shown in FIGS. 1 to 4, the main
body housing 20 has a two-piece structure in which the main body
housing is divided into two in the height direction, and in which
an upper divided housing 21 positioned at the upper portion of the
main body housing and a lower divided housing 22 positioned at the
lower portion of the main body housing are abutted against each
other. In the drawings, a reference numeral J is assigned to an
abutting surface (joining surface) between the upper divided
housing 21 and the lower divided housing 22.
[0058] A recessed portion 23 is provided on the rear-surface-side
right end of the main body housing 20. And, the recessed portion
includes cut-off corners, and it is recessed to both the rear
surface and the right surface and has an approximately rectangular
shape in a planar view. As shown in FIGS. 5 and 8 in which the
charger 10 is shown in a planar view, when a side area S in a
planar view is considered, which is surrounded by a line (an
envelope curve and a line passing through the vicinity of the
joining surface J in the present embodiment) passing through
portions which protrude furthest to each side surface of a front
surface 20F, a rear surface 20B, a right surface 20R, and a left
surface 20L of the main body housing 20, the recessed portion 23 is
provided inside the side area S in a planar view. As shown in FIGS.
2 to 4, and 9, the recessed portion 23 is provided over the entire
area (the entire height H) in a height direction of the main body
housing 20. Accordingly, the recessed portion 23 is provided to be
open not only toward the rear side and the right side but also
toward the upper side and the lower side. A power source cord 24 is
drawn out from the inner portion of the recessed portion 23. The
power source cord 24 can be drawn out from the inner portion of the
recessed portion 23 to any one of the rear side or the right side,
and as shown in FIG. 9, can be also drawn out to the upper side and
the lower side.
[0059] In this way, since the power source cord 24 is drawn out
from the inner portion of the recessed portion 23 which is recessed
to the inside from the side area S in a planar view of the main
body housing 20, when the rear surface of the charger 10 is mounted
to abut a wall or the right surface is mounted to abut a wall, the
rear surface or the right surface can be mounted to closely abut
the wall without being obstructed by the power source cord 24. In
addition, also in the situation where both the rear surface and the
right surface of the charger 10 are mounted to simultaneously abut
a corner portion of a wall, as shown in FIG. 9, the power source
cord 24 can be drawn out from the recessed portion 23 to the upper
side or the lower side. Accordingly, also in this case, the charger
10 can be mounted to closely abut the corner portion of the wall
without being obstructed by the power source cord 24.
[0060] Moreover, although it is shown in only FIG. 9, a cord
holding portion 32 for holding the power source cord 24 in place is
provided on the right surface of the main body housing 20. The cord
holding portion 32 is indented towards the inside from the side
area S in a planar view. A hooking claw portion 32a is provided on
the center of the cord holding portion 32. As shown in FIG. 9 by a
two-dot chain line, the vicinity of an insertion plug 24a of the
power source cord 24 is inserted into the cord holding portion 32
and is hooked by the hooking claw portion 32a, and thus, the
insertion plug 24a can be held on the right portion of the main
body housing 20. Accordingly, when the charger 10 is carried or the
like, the charger 10 can be carried in a state where the insertion
plug 24a is held on the right portion of the main body housing 20
without the power source cord 24 swinging, and when the charger is
used the next time, the insertion plug 24a can be rapidly inserted
into and connected to a socket.
[0061] According to the above-described configuration, the recessed
portion 23 is provided on the-rear-surface right corner of the main
body housing 20 over the entire area in the height direction. The
recessed portion 23 is cut off from the-rear-surface right corner
of the side area S in a planar view of the main body housing 20,
and is indented in a rectangular shape inside the side area S. The
recessed portion 23 is provided to be open in at least two
directions (four directions including up and down directions in the
present embodiment) such as the rear surface side and the right
side. The power source cord 24 is drawn out from the inner portion
of the recessed portion 23.
[0062] Accordingly, the power source cord 24 is led out in at least
two directions (four directions including up and down directions in
the present embodiment) such as the rear surface side and the right
side from the inner portion of the recessed portion 23 and the
power source cord can be wired. Therefore, for example, the charger
10 can be mounted in the state where the rear surface of the main
body housing 20 closely abuts the wall surface without being
obstructed by the power source cord 24 or in the state where the
right surface closely abuts the wall surface.
[0063] Even when the charger 10 is mounted in a state where the
main body housing 20 closely abuts the wall surface without a gap,
since the charger is not obstructed by the power source cord 24, a
mounting space of the charger 10 can be made more compact (the
charger can be mounted even in a narrow space).
[0064] Moreover, since the exemplified recessed portion 23 is
formed over the entire area in the height direction of the main
body housing 20, the power source cord 24 can be drawn to the upper
portion or to the lower portion (bottom surface 27 side) and be
connected to the socket without protruding from the side area S in
a planar view of the main body housing 20. Accordingly, the charger
10 can be mounted in the state where both the rear surface and the
right surface of the main body housing 20 closely abut the corner
portion of the wall surface without being obstructed by the power
source cord 24. In this regard, the mounting space of the charger
10 can be made more compact, and usability of the charger 10 can be
further increased.
[0065] Various modifications can be applied to the above-described
configuration. For example, with respect to the position at which
the recessed portion 23 is provided, the recessed portion may be
provided at the-rear-surface left corner instead of the exemplified
rear-surface right corner, or the position of the recessed portion
is not limited to a corner and the recessed portion may be provided
at the center of the right and left surfaces or at the center of
the rear surface. Even when the recessed portion is provided at any
position and any surface of four surfaces of the front, rear,
right, left surfaces of the main body housing 20 abuts the wall
surface and is mounted, the charger is not obstructed by the power
source cord, and thus, the charger can be mounted in the state
where the main body housing closely abuts the wall surface without
a gap.
[0066] In addition, the recessed portion 23 which is indented in a
rectangular shape is exemplified. However, a recessed portion,
which is inclined to two side surfaces of the main body housing
(the side area S in a planar view) orthogonal to each other and has
a corner-chamfered shape, may be provided.
[0067] Moreover, the recessed portion 23 which is provided over the
entire area in the height direction of the main body housing 20 is
exemplified. However, a recessed portion which is opened to only
one side (one of the upper side or the lower side) in the height
direction may be provided. For example, the recessed portion may be
provided inside the side area S in a planar view only in the lower
divided housing 22, and the power source cord may be drawn out from
the recessed portion. In this case, the upper portion of the
recessed portion is blocked by the corner of the upper divided
housing. However, the power source cord is positioned toward the
bottom surface side and can be connected even when the corner abuts
the wall surface corner portion, and thus, similarly, the mounting
space can be made compact.
[0068] The above-described configuration can be understood by the
following first to fourth related embodiments.
[0069] According to the first related embodiment, there is provided
a charger in which a recessed portion which is recessed inside a
side area in a planar view of a main body housing is provided on a
side portion of the main body housing and a power source cord is
drawn out from the recessed portion, in which the recessed portion
is open in at least two directions different from each other, and
the direction in which the power source cord is drawn out from the
plane side surface area can be changed to any one of at least two
directions.
[0070] According to the first related embodiment, since the power
source cord is drawn out from the recessed portion, when any one of
two side surfaces abuts a wall (to a wall) without a gap and is
mounted, the power source cord can be drawn out from the other side
surface side. Accordingly, one side surface closely abuts the wall
and the charger can be mounted onto the wall without being
obstructed by the power source cord.
[0071] Moreover, the charger can be mounted in the state where the
charger abuts the wall without being obstructed by the power source
cord, and thus, the mounting space of the charger can be made
compact.
[0072] According to the second related embodiment, in the first
related embodiment, the recessed portion is provided on a corner of
two side surfaces of the main body housing intersecting each
other.
[0073] According to the second related embodiment, the recessed
portion is provided on two side surfaces intersecting each other,
for example, on an intersection portion (corner) between the rear
surface and the right surface, and thus, an electric cord can be
drawn out to any one of the rear side or the right side.
Accordingly, when the charger is mounted in the state where the
rear surface of the main body housing abuts the wall surface, the
power source cord can be drawn out to the right side from the
recessed portion, and when the charger is mounted in the state
where the right surface abuts the wall surface, the power source
cord can be drawn out to the rear side from the recessed portion.
In any case, the main body housing can be mounted such that it
abuts the wall surface without being obstructed by the power source
cord.
[0074] According to the third related embodiment, in the first or
second related embodiment, the recessed portion is open to the
upper side in the height direction of the main body housing.
[0075] According to the third related embodiment, the power source
cord can be drawn out to the upper side from the recessed portion.
Accordingly, the charger can be mounted in a state where the
charger closely abuts the corner portion of the wall without being
obstructed by the power source cord, for example, in a state where
the rear surface and the right surface of the main body housing
abut the wall surface.
[0076] According to the fourth related embodiment, in any one of
the first to third related embodiments, the recessed portion is
provided over the entire area in the height direction of the main
body housing and is open in both directions of the up and down
directions in the height direction.
[0077] According to the fourth related embodiment, since the
recessed portion is provided over the entire area in the height
direction, the power source cord can be drawn out to any one of the
upper side or the lower side from the recessed portion.
Accordingly, when two side surfaces (for example, rear surface and
right surface) of the main body housing abut the wall together and
the charger is mounted on the corner portion of the wall, the power
source cord can be drawn out from any one of the upper side and the
lower side of the recessed portion and can be connected to the
power source socket. In this regard, the mounting space of the
charger is compact and the handling of the power source cord is
convenient, and usability of the charger can be improved.
[0078] Next, the charger 10 according to the present embodiment is
not limited to the state where the charger is mounted onto a
worktable. For example, as shown in FIG. 11, the charger can be
mounted to have a wall-hanging state. Moreover, the charger 10
according to the present embodiment can be directly carried by
hand, or, for example, as shown in FIG. 12, a strap ST is put on a
shoulder to carry the charger.
[0079] As shown in FIGS. 2 to 5, a pair of right and left
wall-hanging fixing holes 30 and 30 and, similarly, a pair of right
and left strap attachment holes 31 and 31 are provided on the rear
surface of the main body housing 20. As shown in the drawings, the
wall-hanging fixing holes 30 and 30 and the strap attachment holes
31 and 31 are provided at positions further inside from the side
area S in a planar view and do not protrude to the sides.
[0080] Recessed portions 25 and 26, which are formed vertically in
two steps, are provided to be paired in right and left pairs on the
rear surface of the main body housing 20 and inside the side area S
in a planar view. The upper recessed portions 25 and 25 positioned
at the upper portion of the main body housing are provided on the
upper divided housing 21, and the lower recessed portion 26 and 26
positioned at the lower portion of the main body housing are
provided on the lower divided housing 22. The strap attachment hole
31 is provided on each of the bottom edge portions 25a and 25a of
the upper recessed portions 25 and 25 in a state where the hole 31
penetrates the edge portion 25a. As shown in FIG. 5, each of the
right and left strap attachment holes 31 and 31 is formed in a long
groove hole shape which is slightly longer in a front-rear
direction (up-down direction in FIG. 5).
[0081] In addition, as shown in FIG. 5, the right and left strap
attachment holes 31 and 31 are disposed to be slightly deviated to
a side (the outer side in the right-left direction) and separated
from each other from the center in the right-left direction of the
bottom edge portion 25a. Accordingly, the left strap attachment
hole 31 is disposed to be deviated to the left end of the bottom
edge portion 25a of the upper recessed portion 25, and the right
strap attachment hole 31 is disposed to be deviated to the right
end of the bottom edge portion 25a of the upper recessed portion
25. In this way, since the right and left strap attachment holes 31
and 31 are disposed to be separated from each other with respect to
the upper recessed portion 25, as shown in FIG. 12, in the state
where the strap ST is hung between both strap attachment holes 31
and 31, the strap ST does not easily abut the inner ends of both
upper recessed portions 25 and 25 (the left end of the right upper
recessed portion 25 and the right end of the left upper recessed
portion 25). The strap ST is hung between the right and left strap
attachment holes 31 and 31 provided in this way, and thus, a user
puts the strap on his or her shoulder and can carry the charger
10.
[0082] According to the charger 10 of the present embodiment
configured as described, since the strap attachment holes 31 and 31
for attaching the strap ST for carrying on the shoulder are
provided in the state where the holes do not protrude to the side
portions of the main body housing 20, when the charger 10 is
accidentally hit by other members or when the charger 10 is
accidentally dropped, damage thereto is prevented, and thus, the
durability of the charger 10 can be increased.
[0083] In addition, since the strap attachment holes 31 and 31 are
provided on the bottom portions 25a and 25a of the upper recessed
portions 25 and 25 provided on the rear surface of the main body
housing 20, if the strap ST is detached, the charger can be mounted
in the state where the rear surface of the main body housing 20
closely abuts the wall without a gap, and accordingly, the mounting
space can be made compact.
[0084] Moreover, the right and left strap attachment holes 31 and
31 are disposed to be deviated to the side and separated from each
other with respect to the center in the right and left width
direction of the bottom edge portions 25a and 25a. Accordingly, in
the state where the strap ST attached to both strap attachment
holes 31 and 31 is hung on a shoulder, the strap ST is inclined in
a mountain shape toward the shoulder and does not easily come into
contact with the wall portions inside the upper recessed portions
25 and 25, the strap ST can be attached with good right and left
balance, and damage due to rubbing of the strap ST to the main body
housing 20 (the inner wall portion of the upper recessed portion
25) can be reduced.
[0085] In addition, since the bottom edge portions 25a and 25a for
attaching the strap ST do not have the upper and lower two-piece
structures which are butted to each other at the joining surface J,
and are configured to be integrally provided on the upper divided
housing 21 side, even when the main body housing 20 is divided into
the upper divided housing 21 and the lower divided housing 22, the
bottom edge portions 25a and 25a are not divided into two in the
plate thickness direction. Accordingly, the plate thickness can be
thinned while securing strength of the bottom edge portions 25a and
25a, and since the bottom edge portions are not divided into two,
misalignment of the strap attachment holes 31 and 31 does not
occur.
[0086] Various modifications can be applied to the exemplified
embodiment. For example, the configuration in which the strap
attachment holes 31 and 31 are provided on the rear surface side of
the main body housing 20 is exemplified. However, the strap
attachment holes may be provided on the right and left
portions.
[0087] In addition, the configuration in which the pair of right
and left strap attachment holes 31 and 31 is provided is
exemplified. However, a configuration in which the strap is
attached to one strap attachment hole to be hung on a shoulder may
be adopted.
[0088] In addition, the configuration is exemplified in which the
right and left strap attachment holes 31 and 31 are disposed to be
deviated to the side separated from each other with respect to each
of the bottom edge portions 25a and 25a. A configuration may be
adopted in which each of the right and left strap attachment holes
is disposed at the center in the right and left width direction of
the bottom edge portions 25a and 25a.
[0089] Moreover, each of the strap attachment holes 31 and 31 is
not limited to the exemplified long groove hole, and may be a
circular through-hole.
[0090] In addition, a configuration which has both the function of
the fixing holes 30 and 30 for being mounted on the worktable and
the function of the strap attachment hole may be adopted.
[0091] The above-described configurations can be understood by the
following fifth to seventh related embodiments.
[0092] According to the fifth related embodiment, there is provided
a charger in which a strap for carrying on the shoulder can be
attached and a strap attachment hole is provided inside a side area
in a planar view of a main body housing.
[0093] According to the fifth related embodiment, since the
attachment hole for attaching the strap is provided in a state
where the hole does not protrude to the side portion of the main
body housing, when the charger is accidentally hit by other
members, or when the charger 10 accidentally drops or the like,
durability of the main body housing can be increased.
[0094] Moreover, since the attachment hole for attaching the strap
is provided in a state where the hole does not protrude to the side
portion of the main body housing, the charger can be mounted in a
state where the side portion of the main body housing closely abuts
a wall without a gap, and thus, a mounting space can be made
compact.
[0095] According to the sixth related embodiment, in the fifth
related embodiment, a pair of right and left strap attachment holes
are provided, and both attachment holes are provided to penetrate a
bottom edge portion of a recessed portion which is recessed to the
inside from the side area in a planar view. Further, both
attachment holes are provided to be deviated to a side separated
from each other with respect to a center in a right-left direction
of the bottom edge portion in a planar view.
[0096] According to the sixth related embodiment, when one end side
and the other end side of the strap are hooked to the right and
left strap attachment holes, the strap hung to be inclined to the
side approaching each other does not easily come into contact with
a wall portion inside the recessed portion, and thus, the strap can
be attached with good right and left balance.
[0097] According to the seventh related embodiment, in the sixth
related embodiment, the main body housing has a two-piece structure
in which a lower divided housing provided on an mounting surface
side and an upper divided housing having a battery pack attachment
portion are butted to each other at a joining surface along the
mounting surface, and the bottom edge portion is not provided on
the joining surface and is provided in one of the lower divided
housing and the upper divided housing.
[0098] According to the seventh related embodiment, since the
joining surface is not set to the bottom edge portion in which the
strap attachment hole is provided, strength of the bottom edge
portion is easily secured, and vertical misalignment with respect
to the strap attachment holes does not occur.
[0099] Moreover, as shown in FIG. 5, the position in the right-left
direction of each of the fixing holes 30 and 30 is disposed to be
coincident with (be coaxial with) the lower portion of each of the
right and left strap attachment holes 31 and 31. Accordingly, in
FIG. 5, the fixing holes 30 and 30 of the lower portion can be seen
via the right and left strap attachment holes 31 and 31.
[0100] The right and left fixing holes 30 and 30 are also disposed
to be slightly deviated to the side (the outer side in the
right-left direction) separated from each other from the center in
the right-left direction of the bottom edge portions 26a and 26a of
the lower recessed portions 26 and 26. Accordingly, as shown in
FIG. 4, the left fixing hole 30 is disposed to be deviated to the
left end of the bottom edge portion 26a of the lower recessed
portion 26, and the right fixing hole 30 is disposed to be deviated
to the right end of the bottom edge portion 26a of the lower
recessed portion 26.
[0101] Each of the right and left fixing holes 30 and 30 is
provided to vertically penetrate the bottom edge portion 26a.
Therefore, both fixing holes 30 and 30 are provided to be open to
the bottom surface 27 side of the main body housing 20 on the
bottom surface side of the lower divided housing 22. FIG. 10 shows
a state in which the main body housing 20 is viewed from the bottom
surface 27 side. Legs 27b to 27b are provided on four corners of
the bottom surface 27 of the main body housing 20. An anti-slipping
rubber plate 27h is attached to each leg 27b. The fixing holes 30
are open to the inner sides of two right and left legs 27b and 27b
of the rear surface side. Hook portions 27e and 27e having a
tumbler-shaped hole shape are provided on the rear surface side
(the upper side in FIG. 10) of two right and left legs 27b and 27b
of the front surface side. As shown in FIG. 11, when the charger 10
is mounted to be in a wall-hanging state, the bottom surface 27
opposes a wall surface W, engagement convex portions 28 and 28
provided on the wall surface are hooked to both hook portions 27e
and 27e, fixing screws 29 and 29 are inserted into both fixing
holes 30 and 30 in the hooked state and are fastened to the wall
surface W, and thus, the charger 10 can be fixed in a wall-hanging
state. Moreover, when the charger is mounted to be in a
wall-hanging state as shown in the figures, the rubber plate 27h of
each leg 27b has been detached in advance.
[0102] In this case, since the strap attachment hole 31 is disposed
to be coaxial with the fixing hole 30, as shown in FIG. 11, for
example, a screwdriver D for fastening a screw can be inserted into
the strap attachment hole 31 via the upper recessed portion 25 to
fasten the fixing screw 29, and thus, the fastening operation can
be easily performed.
[0103] As shown in FIG. 10, the bottom surface 27 of the main body
housing 20 becomes a case bottom portion of the main body housing
20 when the charger 10 is disposed and functions as a seat which
supports various charger function parts (device bodies) which are
installed in the inner portion of the main body housing 20. The
charger function parts are supported by a bottom center portion 271
which is set to an approximately center area of the bottom surface.
Meanwhile, the surrounding of the bottom center portion 271
including the circumference of the bottom surface 27 is set to
bottom circumferential portions 272 to 272. In the bottom surface
27 in which the area is divided in this way, finger hooks 27a to
27a are provided on all bottom circumferential portions 272 to 272
which become two sides or more among four sides configuring the
bottom circumferential portions 272 to 272.
[0104] That is, the finger hooks 27a to 27a are provided over the
entire circumference of the bottom circumferential portions 272 to
272 which are set as the periphery along four of front, rear,
right, and left sides in the bottom surface 27. Compared to the
shape which is set for the bottom center portion 271 set at the
approximately center area, the finger hooks 27a to 27a are formed
to protrude to the outside with respect to the bottom
circumferential portions 272 to 272. Specifically, the finger hooks
27a to 27a are formed one step higher than the bottom center
portion 271. In this way, compared to the bottom center portion
271, due to the finger hooks 27a to 27a, efficiency in the hooking
of fingers of the user with respect to the entire circumference of
four sides configuring the bottom circumferential portions 272 to
272 is increased. That is, a fingertip of the user is hooked to the
finger hooks 27a to 27a, the finger hooks 27a to 27a function as an
anti-slipping portion, and thus, the charger 10 can be easily
carried. In addition, the fingertip is hooked to the finger hooks
27a to 27a, and thus, the charger 10 can be securely carried with
one hand.
[0105] Since the finger hooks 27a to 27a are provided over the
entire circumference in the surrounding of the bottom surface 27,
the fingertip of the user is hooked to any one of the front surface
side, the rear surface side, or the right and left portion sides of
the main body housing 20, and the charger 10 can be firmly held by
the user. Accordingly, even when the user is a left-handed person
or a right-handed person, the charger 10 can be easily carried with
a dominant hand. The finger hook 27a is provided along all four
sides of the bottom surface 27. In addition, the finger hook 27a
may be provided on two sides in which one of the front surface side
and the rear surface side and one of the right and left portions
intersect each other, and thus, similar effects can be
obtained.
[0106] A bottom surface recessed portion 27c which is one step
lower than the finger hook is provided on the bottom center portion
271 which is set inside the finger hooks 27a to 27a. Since the
space of the bottom surface recessed portion 27c is sufficient if a
space sufficient to hook the finger of the user to the finger hook
27a is secured, preferably, the space of the bottom surface
recessed portion is set to a narrow area as possible. Accordingly,
as shown in FIG. 10 by a two-dot chain line, a center step portion
27d having the same height as the finger hooks 27a to 27a may be
provided on the center of the bottom-surface recessed portion 27c
provided on the bottom center portion 271. The center step portion
27d is formed to protrude toward the outside with respect to the
main body housing 20. In this way, when the center step portion 27d
is provided on the bottom surface recessed portion 27c, the recess
range of the bottom surface recessed portion 27c can be decreased,
and thus, the capacity of the inner portion of the main body
housing 20 can be increased. That is, particularly, internal
capacity (depth) of the lower divided housing 22 of the main body
housing 20 can be increased. In this way, when the internal
capacity of the main body housing 20 is increased by the
accommodation expansion shape of the lower divided housing 22, for
example, as described below, a degree of freedom of an electronic
part layout on a control substrate 40 accommodated in the lower
divided housing 22 can be increased. That is, the internal capacity
of the main body housing 20 is expanded, and thus, the device body
mounted in the inner portion of the main body housing 20 can be
advantageously mounted.
[0107] According to the charger 10 configured as described above,
since the finger hooks 27a to 27a are provided on four sides
configuring the bottom circumferential portion 272 of the bottom
surface 27, compared to the bottom center portion 271 of the bottom
surface 27, efficiency in the hooking of the fingers of the user
can be increased. Accordingly, when the user carries the charger
10, the user can easily hold the charger 10 in any one of all
circumferential directions, the charger 10 can be firmly held by a
hand through various holding methods when the charger 10 is
carried, and convenience when the charger is carried can be
improved. That is, even when the user simply holds the end edge
portion of the charger 10 with a hand, a finger can be hooked to
the finger hook 27a provided in the vicinity of the end edge of the
charger 10, and thus, the charger 10 can be firmly held. Moreover,
even when the user carries the charger 10 while holding the charger
under his or her arm, fingers can be hooked to the finger hook 27a
provided in the vicinity of the end edge of the charger 10, and the
charger 10 can be firmly held. In addition, according to the
above-described charger 10, compared to the bottom center portion
271, in the finger hooks 27a to 27a, efficiency in the hooking of
fingers of the user is increased, and the shape of the bottom
circumferential portion 272 is set to further protrude to the
outside than the set shape of the bottom center portion 271. Thus,
the finger hooks 27a to 27a can be simply and inexpensively
provided.
[0108] Moreover, various modifications can be applied to the
exemplified embodiment. For example, the exemplified finger hooks
27a to 27a are provided on four sides of the entire circumference
configuring the bottom circumferential portion 272 of the bottom
surface 27. However, finger hooks according to the following eighth
to eleventh related embodiments may be provided on at least two
sides of four sides of the entire circumference of the bottom
circumferential portion. In the finger hooks according to the
following eighth to eleventh related embodiments, an appropriate
configuration may be selected if the configuration increases the
efficiency in the hooking of fingers of the user. That is, in the
finger hooks according to following eighth to eleventh related
embodiments, the finger hooks may be a hook in which the efficiency
in the hooking of fingers is increased by the exemplified
structure, may be a hook in which the efficiency in the hooking of
fingers is increased by a shape such as a finer projection, and may
be a hook in which the efficiency in the hooking of fingers is
increased by a material such as an elastic material. More
specifically, in the finger hooks according to following eighth to
eleventh related embodiments, a plurality of anti-slipping fine
projections may be formed, or anti-slipping processing such as a
knurling may be performed, or an elastic member such as
anti-slipping rubber sheet may be adhered. Even when the finger
hook is configured in this way, the ease with which the charger can
be carried can be further improved.
[0109] In addition, in the above-described embodiment, the bottom
center portion 271 may be formed as the bottom surface recessed
portion 27c, or may be formed as the center step portion 27d, and
an appropriate shape can be selected. However, when the bottom
center portion 271 is formed as the center step portion 27d, since
the internal capacity (depth) of the lower divided housing 22 can
be increased and the internal capacity of the main body housing 20
can be expanded, the layout of the control substrate or the like
accommodated in the main body housing 20 is advantageously
performed.
[0110] The above-described configuration can be understood by the
following eighth to eleventh related embodiments.
[0111] According to the eighth related embodiment, there is
provided a charger which is configured to charge a chargeable type
battery and has an exterior case configuring the exterior of the
charger, in which an area of a bottom surface configuring a case
bottom portion of the exterior case when the charger is disposed is
divided into a bottom center portion supporting a device body
mounted in the inner portion of the exterior case and a bottom
circumferential portion set as the surrounding of the bottom center
portion, and a finger hook which increases efficiency in hooking of
fingers of a user compared to the bottom center portion is provided
on the bottom circumferential portions of at least two sides among
four sides configuring the bottom circumferential portions.
According to the charger according to the eighth embodiment, since
the finger hook is provided on the bottom circumferential portions
of at least two sides among four sides configuring the bottom
circumferential portion of the bottom surface, the efficiency in
the hooking of fingers of the user can be increased compared to the
bottom center portion of the bottom surface. Accordingly, when the
user carries the charger, since the user can easily hold the
charger from at least two directions, the charger can be firmly
held by a hand through various holding methods when the charger is
carried, and convenience when the charger is carried can be
improved. In addition, as the carrying aspect of the charger, there
is an aspect in which the end of the charger is simply held by a
hand to carry, and in which the charger is held under the arm of a
user to carry, or the like.
[0112] According to the ninth related embodiment, in the eighth
related embodiment, in the finger hook, the shape of the bottom
circumferential portion is configured to protrude further to the
outside than the set shape of the bottom center portion, and the
efficiency in the hooking of fingers of the user is increased
compared to the bottom center portion. According to the charger of
the ninth embodiment, in the finger hooks, the efficiency in the
hooking of fingers of the user is increased compared to the bottom
center portion, and the shape of the bottom circumference portion
is configured to protrude further to the outside than the set shape
of the bottom center portion. Thus, the finger hooks can be simply
and inexpensively provided.
[0113] According to the charger of the tenth related embodiment, in
the eighth or ninth related embodiment, the finger hook is provided
over four sides configuring the entire circumference of the bottom
circumferential portion. According to the charger of the tenth
embodiment, since the finger hook is provided over four sides
configuring the entire circumference of the bottom circumferential
portion, when the user carries the charger, the user can hold the
charger in any direction of the all circumferential directions.
Accordingly, with respect to various carrying aspects, the charger
is held by a hand in any direction, and thus, convenience at the
time of carrying can be further improved.
[0114] According to the eleventh related embodiment, in any one of
the eighth to tenth embodiments, an accommodation expansion shape
which protrudes toward the outside of the exterior case and expands
an internal capacity of the exterior case is provided on the bottom
center portion. According to the charger of the eleventh
embodiment, since the accommodation expansion shape protruding
toward the outside of the exterior case is provided on the bottom
center portion, the internal capacity of the exterior case can be
expanded. Accordingly, the internal capacity of the exterior case
is expanded, and thus, it is possible to advantageously install the
device body which is mounted in the inner portion of the exterior
case.
[0115] According to the charger of the eighth related embodiment,
with respect to various carrying aspects, the charger is firmly
held by a hand in at least two directions, and thus, convenience at
the time of carrying can be improved.
[0116] According to the charger of the ninth related embodiment,
the finger hook can be simply and inexpensively provided.
[0117] According to the charger of the tenth related embodiment,
with respect to various carrying aspects, the charger is held by a
hand in any direction, and the convenience at the time of carrying
being able to be further improved.
[0118] According to the charger of the eleventh related embodiment,
the internal capacity of the exterior case is expanded, and thus,
it is possible to advantageously install the device body which is
mounted in the inner portion of the exterior case.
[0119] Next, as shown in FIG. 13, four battery attachment portions
11 to 14 which are disposed to be able to be exposed to the outside
are provided on a charger main body 100 configuring the charger 10.
The charger main body 100 corresponds to a mounting device main
body of the following twelfth to sixteenth related embodiments, and
is configured to be able to charge the battery pack B. Moreover,
the four battery attachment portions 11 to 14 correspond to a
battery mounting structure of the following twelfth to sixteenth
related embodiments. The four battery attachment portions 11 to 14
have the same configuration as one another with respect to
mechanical and electrical attachment to the battery pack B.
Hereinafter, as shown in a disassembled state in FIG. 13, the first
left-end battery attachment portion 11 will be described. Positive
and negative connection terminals 11b and 11b and a signal
transmission and reception connector 11d are disposed between the
receiving rail portions 11a and 11a provided on the right and the
left of the first battery attachment portion 11. The positive and
negative connection terminals 11b and 11b, and the signal
transmission and reception connector 11d function as a charger
terminal which is electrically connected so as to contribute to the
charging of the battery pack B.
[0120] A terminal cover mechanism 11A is provided outside the
positive and negative connection terminals 11b and 11b and the
signal transmission and reception connector 11d. The terminal cover
mechanism 11A substantially includes a terminal cover 11c which is
a cover member and a compression spring 11e which is a biasing
spring. The terminal cover 11c slides so that the position of the
terminal cover is changed between both positions, that is, a
covering position at which the positive and negative connection
terminals 11b and 11b and the connector 11d are covered, and an
exposure position at which the connection terminals 11b and 11b and
the connector 11d are exposed to the outside to be connectable. The
compression spring 11e biases the terminal cover 11c to slide the
terminal cover in a direction of the covering position. Moreover,
the covering position of the terminal cover 11c is set to the
illustrated rear surface side, and the exposure position of the
terminal cover 11c is set to the illustrated front surface side.
That is, as shown in FIG. 19, a biasing-direction end 11ea of the
compression spring 11e is set to the end of the compression spring
11e of the illustrated rear surface side. On the other hand, a
support-base end 11eb of the compression spring 11e is an end
opposite to the biasing-direction end 11ea, and is set to the end
of the compression spring 11e of the illustrated front surface
side.
[0121] The terminal cover mechanism 11A corresponds to a cover
mechanism according to the following twelfth to sixteenth related
embodiments. In this way, in the terminal cover mechanism 11A, the
connection terminals 11b and 11b and the connector 11d are covered
by the terminal cover 11c, and thus, the exposure of the connection
terminals 11b and 11b and the connector 11d to the outside is
prevented and the connection terminal and the connector can be
protected from damage or the like. In this way, the terminal cover
11c can slide in the front-rear direction while being biased in the
direction (closing direction) in which the cover slides to the rear
surface side by the compression springs 11e and 11e. Methods are
also performed on an assembly structure of the terminal cover 11c
with respect to the first battery attachment portion 11.
[0122] That is, the biasing direction end 11ea of the compression
spring 11e is permanently supported by a bias receiving portion
11cf provided on the terminal cover 11c. Moreover, the support base
end 11eb of the compression spring 11e is temporarily supported by
a temporarily fixed rib 11cd provided on the terminal cover 11c. In
addition, the permanent support means a support in which the
terminal cover 11c is supported even after the assembly. Moreover,
the temporary support means a temporary support in which the
terminal cover 11c is not supported after the assembly. The
temporarily fixed rib 11cd corresponds to a temporarily receiving
portion in the following twelfth to sixteenth related embodiments
and is formed in one rib shape protruding toward the illustrated
rear surface side. The temporarily fixed rib 11cd is formed to
temporarily support the support base end 11eb of the compression
spring 11e at the intermediate portion.
[0123] FIG. 19 shows the terminal cover 11c which is detached from
the first battery attachment portion 11 or before the assembly is
performed. One support boss portion lice is provided to protrude
toward the lower side at the approximately center of the lower
surface (rear surface) of the terminal cover 11c. A screw hole 11ca
is provided at the center of the support boss portion lice. A pair
of spring receiving portions 11cb and 11cb is provided on the right
and left sides of the support boss portion lice on the lower
surface of the terminal cover 11c.
[0124] The compression spring 11e is accommodated in each of both
spring receiving portions 11cb and 11cb. The rear portion side of
the compression spring 11e is interposed between holding portions
lice provided on the rear portion of the spring receiving portion
11cb, and the rear portion side is in a state of being held so as
not to be displaced in the extension and contraction directions
(front-rear direction). The front portion side of the compression
spring 11e is in a state of abutting the temporarily fixed rib 11cd
provided on the front portion of the spring receiving portion 11cb.
Accordingly, the front portion side of each of both compression
springs 11e and 11e abuts each temporarily fixed rib 11cd in the
state where the front portion side can be displaced in the
extension and contraction directions. In this way, in the assembly
state where two compression springs 11e and 11e are held
(temporarily fixed) to the spring receiving portions 11cb and 11cb,
the terminal cover 11c is assembled on the first battery attachment
portion 11.
[0125] FIG. 18 shows the state of the upper divided housing 21
before the assembly in which all the first to fourth battery
attachment portions 11 to 14 are detached. First to fourth pedestal
portions 64 to 67 corresponding to the first to fourth battery
attachment portions 11 to 14 are provided on the upper surface of
the upper divided housing 21. As shown in the drawings, since the
first to fourth pedestal portions 64 to 67 have the same
configuration as one another, hereinafter, the first pedestal
portion 64 of the left end will be described.
[0126] A rectangular window portion 43a is provided at the center
of the first pedestal portion 64 corresponding to the first battery
attachment portion 11. As shown in other drawings, the connection
terminals 11b and 11b and the connector 11d of a first terminal
plate 43 protrude to the upper side via the window portion 43a. The
support structures of the first to fourth terminal plates 43 to 46
will be described below. A closing stopper wall portion 60 is
provided to protrude to the upper portion at the front side (the
lower side in FIG. 18) of the window portion 43a. A pair of right
and left spring receiving ribs 62 and 62 is provided to protrude to
the upper portion at the front side of the closing stopper wall
portion 60. The spring receiving rib 62 corresponds to a
permanently receiving portion in the twelfth to sixteenth related
embodiments, and permanently supports the support base end 11eb of
the compression spring 11e. Two spring receiving ribs 62 are set to
be disposed at both sides of one temporarily fixed rib 11cd after
the terminal cover 11c is assembled. That is, as also shown in FIG.
13, each of both spring receiving ribs 62 and 62 is formed in a
fork shape which has a slit at the center in the right-left
direction. A relationship between the spring receiving rib 62 and
the temporarily fixed rib 11cd is set so that when the terminal
cover mechanism 11A is assembled on the charger main body 100, the
support base end of the compression spring 11e temporarily
supported by the temporarily fixed rib 11cd of the terminal cover
11c is transferred from the abutment state of the temporarily fixed
rib 11cd to the abutment state of the spring receiving rib 62
according to the assembly movement of the terminal cover 11c, and
after the terminal cover 11c is assembled, the support base end is
permanently supported by the spring receiving rib 62. Specifically,
after the terminal cover 11c is assembled, the position of the
support base end 11eb permanently supported by the spring receiving
rib 62 is positioned as illustrated further toward the rear surface
side compressing the compression spring 11e compared to the
position of the support base end 11eb temporarily supported by the
temporarily fixed rib 11cd.
[0127] Moreover, as shown in the figures after FIG. 20, guide
inclination surfaces 62a and 62a which descend to the rear side are
provided on the upper rear surfaces of both spring receiving ribs
62 and 62. The guide inclination surfaces 62a and 62a are portions
which are set to transfer starting portions of the spring receiving
rib 62 when the support base end 11eb of the compression spring 11e
is transferred from the abutment position of the temporarily fixed
rib 11cd to the abutment position of the spring receiving rib 62.
That is, the guide inclination surfaces 62a and 62a have a function
of guiding the support base end 11eb of the compression spring 11e
toward the compressed rear surface side according to the transfer
of the support base end 11eb of the compression spring 11e.
Specifically, the guide inclination surfaces 62a and 62a have
shapes which are inclined to support the support base end 11eb of
the compression spring 11e in the compressed direction of the
compression spring 11e. Moreover, after the terminal cover 11c is
assembled, the spring receiving ribs 62 and 62 support the support
base end 11eb of the compression spring 11e at the position
deviated from the temporarily fixed rib 11cd to the rear surface
side.
[0128] In addition, apexes 62b and 62b of the guide inclination
surfaces 62a and 62a are positioned to be slightly deviated from
the position of the temporarily fixed rib 11cd after the terminal
cover 11c is connected to the front surface side. Accordingly, when
the abutment position of the support base end 11eb is transferred
from the temporarily fixed rib 11cd to the spring receiving rib 62,
the transfer starts smoothly. That is, according to the disposition
positions of the apexes 62b and 62b and the inclination structures
of the guide inclination surfaces 62a and 62a, even when the
assembly movement of the terminal cover 11c is performed from just
above to just below the cover, the abutment position of the support
base end 11eb of the compression spring 11e can be transferred from
the temporarily fixed rib 11cd to the spring receiving rib 62.
[0129] As shown in FIGS. 13 and 18, one groove hole 63 is provided
between the right and left spring receiving ribs 62 and 62. The
groove hole 63 extends from the portion between both spring
receiving ribs 62 and 62 to the rear side, and reaches an area in
front of the closing stopper wall portion 60. The groove hole 63
has a width dimension through which the support boss portion lice
of the terminal cover 11c can be inserted, and is provided to
penetrate in the thickness direction of the first pedestal portion
64. As shown in FIG. 23, a fixing screw 61 is fastened to the screw
hole 11ca of the support boss portion lice, which is inserted from
above into the groove hole 63, from the lower portion, and thus,
the terminal cover 11c is in an assembled state so as to be
slidably supported with a constant stroke in the front-rear
direction on the first pedestal portion 64.
[0130] FIGS. 20 to 23 show the assembly procedure of the terminal
cover 11c with respect to the first battery attachment portion 11.
As shown in FIG. 20, before the terminal cover 11c is assembled,
the terminal cover 11c is in an assembled state in which two
compression springs 11e and 11e are temporarily fixed to the lower
surface of the terminal cover. After the terminal cover 11c is set
to the first pedestal portion 64, one fixing screw 61 is inserted
from the lower portion of the groove hole 63 and is fastened to the
screw hole 11ca, and the assembly of the terminal cover 11c is
completed.
[0131] First, as shown in FIG. 21, the terminal cover 11c is moved
to cover the first pedestal portion 64 while the support boss
portion lice is inserted into the groove hole 63 from the upper
side. At this time, preferably, as shown in the drawings, each of
the right and left temporarily fixed ribs 11cd and 11cd is moved
from the rear side position which substantially is the closed
position of the terminal cover with respect to the position of the
terminal cover 11c in the front-near direction so that each
temporarily fixed rib is inserted into the slit of the spring
receiving rib 62.
[0132] When the terminal cover 11c is moved to the first pedestal
portion 64, the support boss portion lice is inserted into the
groove hole 63, and as shown in FIG. 21, each of the front ends of
the right and left compression springs 11e and 11e is pressed to
the guide inclination surface 62a of the spring receiving rib
62.
[0133] When the terminal cover 11c further moves to the first
pedestal portion 64 to be parallel with the lower portion in the
state where each of the front ends of the right and left
compression springs 11e and 11e is pressed to the guide inclination
surface 62a of the spring receiving rib 62, as shown in FIG. 22,
the front ends of both compression springs 11e and 11e are slightly
pressed in the contraction directions and separated from the
temporarily fixed ribs 11cd and 11cd, and transferred to abut the
rear surfaces of the spring receiving ribs 62 and 62.
[0134] In this way, in the state where each of the front ends of
both compression springs 11e and 11e is transferred from the
temporarily fixed rib 11cd to the spring receiving rib 62, as shown
in FIG. 23, the terminal cover 11c is in a set state in which the
terminal cover 11c further moves to a position where approximately
abuts the first pedestal portion 64. In this state, when the fixing
screw 61 is fastened to the screw hole 11ca of the support boss
portion lice, the assembly work of the terminal cover 11c with
respect to the first pedestal portion 64 is completed. In this
step, the front end sides of the right and left compression springs
11e and 11e abut the spring receiving rib 62 (first pedestal
portion 64 side), and thus, biasing forces of the compression
springs 11e and 11e operate in a direction where the terminal cover
11c slides to the closed side (rear side).
[0135] In this way, when the terminal cover 11c, which is in the
assembled state in which each of two compression springs 11e and
11e is temporarily fixed with respect to the spring receiving
portion 11cb, is connected to the first pedestal portion 64, the
front end sides of both temporarily fixed compression springs 11e
and 11e are automatically transferred to the spring receiving rib
62 side, and the biasing forces operate toward the side in which
the terminal cover 11c is closed. Accordingly, without performing
troublesome work such as the movement of the front ends of the
compression springs 11e and 11e during the assembly work using a
specialized tool or the like and without guiding the compression
springs 11e and 11e by a jig or the like, an operator can rapidly
and securely complete the assembly work by only moving the terminal
cover 11c. According to the assembly work, each of the terminal
covers 12c, 13c, and 14c can be rapidly and securely assembled to
each of the second to fourth pedestal portions 65 to 67.
[0136] The battery pack B slides from the rear surface side toward
the front surface side in a slightly descending direction while the
terminal cover 11c assembled as described above is pressed to be
opened to the front surface side against the compression springs
11e and 11e, and the battery pack B can be attached to the first
battery attachment portion 11. When the battery pack B is attached
to the first battery attachment portion 11, the battery pack B is
mechanically fixed to the charger 10 and electrically connected to
the charger, and the battery pack can be charged. Moreover, a total
of four battery packs B to B are attached to the second battery
attachment portion 12, the third battery attachment portion 13, and
the fourth battery attachment portion 14 positioned at the right
side of the first battery attachment portion 11, in addition to the
first left-end battery attachment portion 11, and thus, four
battery packs can be simultaneously charged.
[0137] According to the first battery attachment portion 11
configured as described above, when the terminal cover mechanism
11A is assembled on the charger main body 100, the support base end
11eb of the compression spring 11e temporarily supported by the
temporarily fixed rib 11cd of the terminal cover 11c is transferred
from the abutment position of the temporarily fixed rib 11ed to the
abutment position of the spring receiving rib 62 according to the
assembly movement of the terminal cover 11c, and the support base
end can be permanently supported by the spring receiving rib 62
after the terminal cover 11c is assembled. Accordingly, the
terminal cover mechanism 11A can be assembled on the charger main
body 100 without using a jig or the like. Moreover, according to
the above-described first battery attachment portion 11, compared
to the position of the support base end 11eb temporarily supported
by the temporarily fixed rib 11ed, the position of the support base
end 11eb permanently supported by the spring receiving rib 62 is
further displaced to the rear surface side to which the compression
spring 11e is compressed, and thus, the permanent support of the
support base end 11eb by the spring receiving rib 62 after the
terminal cover 11c is assembled can be more securely performed. In
addition, according to the above-described first battery attachment
portion 11, the guide inclination surfaces 62a and 62a guide the
support base end 11eb of the compression spring 11e toward the rear
surface side, to which the compression spring is compressed,
according to the transfer of the support base end 11eb of the
compression spring 11e, and thus, the transfer according to the
assembly movement of the terminal cover 11c can be more smoothly
performed. Moreover, according to the above-described first battery
attachment portion 11, since one temporarily fixed rib 11c
temporarily supports the support base end 11eb at the intermediate
portion, and the support base end is permanently supported by two
spring receiving ribs 62 disposed at both sides of the one
temporarily fixed rib 11ed after the assembly, the support range of
the permanent support is expanded and a stable support can be
realized while the structures of the temporarily fixed rib 11cd and
the spring receiving rib 62 can be combined with each other to be
smaller.
[0138] In addition, various modifications can be applied to the
exemplified embodiment. For example, in the above-described
embodiment, the charger 10 including the structure, in which the
battery pack B slides to be attached, is exemplified. However, the
mounting device main body according to the following twelfth to
sixteenth related embodiments is not limited to this, and can be
widely applied to a structural body including a structure in which
the chargeable type battery slides to be attached.
[0139] Moreover, the configurations of the temporarily receiving
portion and the permanently receiving portion according to the
following twelfth to sixteenth related embodiments are not limited
to the example which combines the temporarily fixed rib 11ed and
the spring receiving rib 62 of the above-described embodiment, and
combinations of appropriate aspects can be selected. Moreover,
appropriate methods may be applied to the assembly movement of the
terminal cover 11c, and any movements may be adopted as long as at
least the abutment position of the support base end 11eb of the
compression spring 11e can be transferred from the temporarily
fixed rib 11cd to the spring receiving rib 62.
[0140] The above-described configuration can be understood by the
following twelfth to sixteenth related embodiments.
[0141] According to the twelfth related embodiment, there is
provided a battery mounting structure which is disposed to be
capable of being exposed outside a mounting device main body in
which a mounting side terminal electrically connectable to a
battery terminal of a chargeable type battery mounted in a sliding
manner is configured to be electrically connectable, in which a
cover mechanism preventing exposure of the mounting side terminal
to the outside when the chargeable type battery is not mounted is
provided on the mounting device main body, the cover mechanism
includes: a cover member in which the cover member slides between
both positions of a covering position covering the mounting side
terminal and an exposure position exposing the mounting side
terminal to the outside to be connectable and the position of the
cover member is changed; and a biasing spring which slide-biases
the cover member in the direction which will bring about the
covering position so that the cover member is positioned at the
covering position, a biasing direction end of the biasing spring
which becomes a biasing direction end of the cover member is
permanently supported by the bias receiving portion provided on the
cover member, a support base end of the biasing spring which
becomes an end opposite the biasing direction end is temporarily
supported by a temporarily receiving portion provided on the cover
member, a permanently receiving portion permanently supporting the
support base end of the biasing spring is provided on the mounting
device main body, a relationship between the permanently receiving
portion and the temporarily receiving portion is set so that the
support base end of the biasing spring temporarily supported by the
temporarily receiving portion of the cover member is transferred
from abutment of the temporarily receiving portion to abutment of
the permanently receiving portion according to an assembly movement
of the cover member when the cover mechanism is assembled on the
mounting device main body, and the support base end is permanently
supported by the permanently receiving portion after the cover
mechanism is assembled. In addition, here, the "permanent support"
means a support in which the cover mechanism is supported even
after the assembly, and the "temporary support" means a temporary
support in which the cover mechanism is not supported after the
assembly.
[0142] According to the twelfth related embodiment, when the cover
mechanism is assembled on the mounting device main body, the
support base end of the biasing spring temporarily supported by the
temporarily receiving portion of the cover member is transferred
from the abutment position of the temporarily receiving portion to
the abutment position of the permanently receiving portion
according to the assembly movement of the cover member, and the
support base end can be permanently supported by the permanently
receiving portion after the cover member is assembled. Accordingly,
the cover mechanism can be assembled on the mounting device main
body without using a jig or the like.
[0143] According to the battery mounting structure of the
thirteenth related embodiment, in the battery mounting structure
according to the twelfth related embodiment, the relationship
between the permanently receiving portion and the temporarily
receiving portion is configured such that the position of the
support base end permanently supported by the permanently receiving
portion after the cover member is assembled is positioned to
further approach in a direction in which the biasing spring is
compressed compared to the position of the support base end
temporarily supported by the temporarily receiving portion.
According to the battery mounting structure of the thirteenth
related embodiment, since the position of the support base end
permanently supported by the permanently receiving portion is
positioned to further approach in a direction in which the biasing
spring is compressed compared to the position of the support base
end temporarily supported by the temporarily receiving portion, the
permanent support of the support base end by the permanently
receiving portion after the cover member is assembled can be more
securely performed.
[0144] According to the battery mounting structure of the
fourteenth related embodiment, in the battery mounting structure
according to the thirteenth related embodiment, a shape is provided
on a transfer starting portion of the permanently receiving portion
when the support base end of the biasing spring is transferred from
the abutment position of the temporarily receiving portion to the
abutment position of the permanently receiving portion, and the
shape is inclined to support the support base end of the biasing
spring in the direction in which the biasing spring is compressed
according to the transfer from the abutment position of the
temporarily receiving portion to the abutment position of the
permanently receiving portion. According to the battery mounting
structure of the fourteenth related embodiment, since the shape,
which is inclined to support the support base end of the biasing
spring in the direction in which the biasing spring is compressed
according to the transfer from the abutment position of the
temporarily receiving portion to the abutment position of the
permanently receiving portion, is provided on the transfer starting
portion, the transfer according to the assembly movement of the
cover member can be more smoothly performed.
[0145] According to the battery mounting structure of the fifteenth
related embodiment, in the battery mounting structure according to
the thirteenth or fourteenth related embodiment, the temporarily
receiving portion temporarily supports the support base end of the
biasing spring at the intermediate portion, and the permanently
receiving portion permanently supports the cover member at both
sides of the temporarily receiving portion after the cover member
is assembled. According to the battery mounting structure of the
fifteenth related embodiment, since the temporarily receiving
portion temporarily supports the cover member at the intermediate
portion and the permanently receiving portion permanently supports
the cover member at both sides of the temporarily receiving portion
after the cover member is assembled, the support range of the
permanent support is expanded and a stable support can be realized
while the structures of the temporarily receiving portion and the
permanently receiving portion can be combined with each other to be
smaller.
[0146] According to the sixteenth related embodiment, there is
provided a charger including the battery mounting structure of any
one of the twelfth to fifteenth related embodiments, the mounting
device main body is a charger main body which is configured to
charge the chargeable type battery, the mounting side terminal is a
charger terminal which contributes to the charging of the
chargeable type battery, and the cover mechanism is a terminal
cover mechanism which is disposed outside the charger terminal.
According to the charger of the sixteenth related embodiment, the
charger may have the function as the terminal cover mechanism
disposed outside the charger terminal of the charger, and can
provide effects of the twelfth to fifteenth related embodiments in
the terminal cover mechanism.
[0147] According to the battery mounting structure of the twelfth
related embodiment, the cover mechanism can be assembled on the
mounting device main body without using a jig or the like.
[0148] According to the battery mounting structure of the
thirteenth related embodiment, the permanent support of the support
base end by the permanently receiving portion after the cover
member is assembled can be more securely performed.
[0149] According to the battery mounting structure of the
fourteenth related embodiment, the transfer according to the
assembly movement of the cover member can be more smoothly
performed.
[0150] According to the battery mounting structure of the fifteenth
related embodiment, the support range of the permanent support is
expanded and a stable support can be realized while the structures
of the temporarily receiving portion and the permanently receiving
portion can be combined with each other to be small.
[0151] According to the charger of the sixteenth related
embodiment, the charger can provide effects of the twelfth to
fifteenth related embodiments in the terminal cover mechanism while
having the function as the terminal cover mechanism disposed
outside the charger terminal of the charger.
[0152] As described above, the first to fourth battery attachment
portions 11 to 14 individually include the configuration for
charging the battery packs B independently from one another.
However, methods for charging the battery attachment portions
together have been performed. FIGS. 14 to 16 show the lower divided
housing 22 and the internal structure in the charger 10 in the
state where the upper divided housing 21 is detached. In the
drawings, the same reference numerals are assigned to the
above-described members or configurations such as the recessed
portion 23 for drawing out the power source cord.
[0153] The control substrate 40 having a flat plate shape is
attached with a predetermined gap along the bottom portion 27 in
the lower divided housing 22.
[0154] Two terminal receiving boards 41 and 42 are provided in
parallel in the right-left direction on the upper portion of the
control substrate 40. The first terminal plate 43 and the second
terminal plate 44 are mounted on the first left terminal receiving
board 41. The third terminal plate 45 and the fourth terminal plate
46 are mounted on the second right terminal receiving board 42.
[0155] The positive and negative connection terminals 11b and 11b
and the signal transmission and reception connector 11d for the
first battery attachment portion 11 are mounted on the first
terminal plate 43. The positive and negative connection terminals
12b and 12b and the signal transmission and reception connector 12d
for the second battery attachment portion 12 are mounted on the
second terminal plate 44. The positive and negative connection
terminals 13b and 13b and the signal transmission and reception
connector 13d for the third battery attachment portion 13 are
mounted on the third terminal plate 45. The positive and negative
connection terminals 14b and 14b and the signal transmission and
reception connector 14d for the fourth battery attachment portion
14 are mounted on the fourth terminal plate 46. As shown in FIG.
20, a spring 47 is attached to the lower portion of each of the
terminal plates 43 to 46, and the terminal plate 43 and the upper
divided housing 21 are configured to come into close contact with
each other through the biasing force of the spring 47 when the
upper divided housing 21 is attached.
[0156] When the upper divided housing 21 is connected to the lower
divided housing 22, as described above, the first to fourth
terminal plates 43 to 46 protrude from the first to fourth pedestal
portions 64 to 67 of the upper divided housing 21 to the upper
surface sides via the rectangular window portions 43a to 46a
provided on the first to fourth pedestal portions 64 to 67 of the
upper divided housing 21, and thus, the connection terminals 11b to
14b and the connectors 11d to 14d in the battery attachment
portions 11 to 14 protrude to be connectable to the battery pack
B.
[0157] Top plate portions 41a and 42a, which are bent in a
rectangular shape toward the upper portion between the first
terminal plate 43 and the second terminal plate 44 and between the
third terminal plate 45 and the fourth terminal plate 46, are
formed on the bottom portions of both terminal receiving boards 41
and 42. Accordingly, the space in the height direction between both
top plate portions 41a and 42a and the control substrate 40 is
significantly larger than the space in the height direction between
the bottom portions 41b and 42b supporting the first to fourth
terminal plates 43 to 46 and the control substrate 40. Therefore, a
large electronic member having a large height dimension such as a
capacitor or a transformer can be mounted on the control substrate
40 on the lower portions of both top plate portions 41a and
42a.
[0158] As shown in FIG. 16, each of both drain channels 41c and 42c
is provided on the rear surface side of each of both terminal
receiving boards 41 and 42. Both drain channels 41c and 42c are
respectively provided over the entire width in the right and left
width directions from the right ends to the left ends of both
terminal receiving boards 41 and 42. As shown in the drawings, each
of both drain channels 41c and 42c is inclined in a direction
descending to the left side. Drain outlets (drain holes) 41d and
42d are respectively provided on the lowest portions which are the
left ends of both terminal receiving boards 41 and 42.
[0159] As shown in FIG. 24, each of both drain outlets 41d and 42d
communicates with a drain outlet 27f, which is open to the bottom
surface 27, via the side of the control substrate 40. As shown in
the drawings, the drain outlet 27f is inclined towards the front
surface side, and an eaves portion 27g is provided to protrude to
the front surface side along the bottom surface at the rear portion
(the upper portion in FIG. 24) of the drain outlet. According to
the eaves portion 27g, as shown in the drawings, when the charger
10 is mounted in the rising state in which the front surface side
is grounded, a backflow of rainwater or the like falling from the
upper portion toward the drain outlets 41d and 42d sides and the
terminal plates 43 to 46 sides is prevented. In addition, also in
the case in which the charger 10 is carried in the state where the
strap ST is hung on a shoulder while the front surface side of the
charger is directed downward, according to the eaves portion 27g,
27g, a backflow of rainwater or the like toward the drain outlets
41d and 42d sides and eventually the terminal plates 43 to 46 sides
is prevented.
[0160] In this way, according to the drain channels 41c and 42c and
the drain outlets 41d and 42d provided on both terminal receiving
boards 41 and 42, rainwater or the like pouring on the charger 10
is not accumulated on the terminal receiving boards 41 and 42 and
drains to the outside of the main body housing 20, and thus,
submersion of the control substrate 40 is prevented, and
water-proofing property (durability) of the charger 10 can be
increased.
[0161] Moreover, compared to four separate terminal receiving
boards being respectively set to the terminal plates 43, 44, 45,
and 46, in a total of four battery attachment portions 11 to 14,
the first terminal plate 43 of the first battery attachment portion
11 and the second terminal plate 44 of the second battery
attachment portion 12 are mounted on the first common terminal
receiving board 41, the third terminal plate 45 of the third
battery attachment portion 13 and the fourth terminal plate 46 of
the fourth battery attachment portion 14 are mounted on the second
common terminal receiving board 42, four terminal plates 43 to 46
are supported by two terminal receiving boards 41 and 42, and thus,
the number of parts (common use of parts) can be reduced.
[0162] Moreover, the common drain channel 41c (42c) and drain
outlet 41d (42d) are provided with respect to one terminal
receiving board 41 (42) supporting two terminal plates 43 and 44
(45 and 46), and in this regard, the common parts or configurations
with respect to the plurality of battery attachment portions can be
used.
[0163] In addition, compared to a case when the terminal receiving
boards 41 and 42, the drain channels 41c and 42c, and the drain
outlets 41d and 42d are set separately, when common use of the
parts of the terminal receiving boards 41 and 42 is achieved and
the drain channels 41c and 42c and the drain outlets 41d and 42d
are used together with respect to the plurality of battery
attachment portions 11 to 14, the space in the main body housing 20
is effectively used, and thus, for example, a large electronic part
or a plurality of electronic parts can be mounted on the control
substrate 40, and a limitation on a substrate layout can be
decreased.
[0164] According to the four-port type charger 10 of the present
embodiment configured as above, in four terminal plates 43 to 46,
the terminal plates 43 and 44 are supported by one terminal
receiving board 41, and similarly, the terminal plates 45 and 46
are supported by one terminal receiving board 42. Accordingly,
compared to the configuration in which four terminal plates 43 to
46 are supported by separate terminal receiving boards, the number
of parts of the terminal receiving board can be halved, and thus,
the space in the main body housing 20 can be effectively used, and
a large mounting area of the control substrate 40 can be
secured.
[0165] Moreover, the common drain channels 41c (42c) and drain
outlets 41d (42d) can be provided on one terminal receiving board
41 (42) supporting two terminal plates 43 and 44 (45 and 46), and
also according to this, the common parts and configurations can be
used, and in this regard, the space in the main body housing 20 can
be further effectively used.
[0166] In addition, the top plate portions 41a and 42a, in which
each height dimension from the control substrate 40 is one step
higher than each of the bottom portions 41b and 42b supporting
terminal plates 43 to 46, are provided on the exemplified terminal
receiving boards 41 and 42. Therefore, for example, a large
electronic part having a larger height dimension such as a
capacitor or a transformer can be disposed on the lower portions of
both top plate portions 41a and 42a, and in this regard, a degree
of freedom on the mounting part layout on the control substrate 40
can be increased.
[0167] Various modifications can be applied to the exemplified
embodiment. For example, the configuration is exemplified in which
four terminal plates 43 to 46 are divided into two groups and each
group is supported by one of the terminal receiving boards 41 and
42. However, a configuration in which four terminal plates 43 to 46
are supported by one terminal receiving board may be adopted. In
this case, all four terminal plates 43 to 46 can have a drain
function by one drain channel and one drain outlet.
[0168] Moreover, the drain channels 41c and 42c and the drain
outlets 41d and 42d may be configured to be individually provided
on each of the terminal plates 43 to 46. In addition, the drain
channels 41c and 42c and the drain outlets 41d and 42d may be
omitted.
[0169] Moreover, the top plate portions 41a and 42a of the terminal
receiving boards 41 and 42 may be omitted.
[0170] The above-described configurations can be understood by the
following seventeenth to nineteenth related embodiments.
[0171] According to the seventeenth related embodiment, there is
provided a multi-port type charger in which a plurality of battery
packs are simultaneously mounted and can be charged, in which a
plurality of terminal plates to which the plurality of battery
packs are connected are supported by a main body housing via a
common terminal receiving board.
[0172] According to the seventeenth related embodiment, compared to
a configuration in which the plurality of terminal plates are
supported by an individual terminal receiving board, common parts
are increased, a space in the main body housing is effectively
used, and an increase in a mounting area of the control substrate
can be easily secured.
[0173] For example, in the case of the four-port type charger, four
terminal plates are grouped in two, two terminal plates are
supported by one terminal receiving board, and thus, two terminal
receiving boards can support four terminal plates. In this way, for
example, one drain channel is provided on the terminal receiving
boards in which the parts are commonly used, and thus, two terminal
plates can function as a drain channel. Four terminal plates may be
configured to be supported by one terminal receiving board.
[0174] According to the eighteenth related embodiment, in the
seventeenth related embodiment, a common drain channel is provided
on the plurality of terminal plates in the terminal receiving
board.
[0175] According to the eighteenth related embodiment, the common
terminal receiving board is used for the plurality of terminal
plates, and thus, compared to the configuration in which individual
terminal receiving boards are used, the space in the main body
housing can be effectively used, and an increase in a mounting area
of the control substrate can be secured.
[0176] According to the nineteenth related embodiment, in the
seventeenth or eighteenth related embodiment, the terminal
receiving board is bent upward between the plurality of terminal
plates, and the height of the terminal receiving board is higher
than the attachment portion of the terminal plate.
[0177] According to the nineteenth related embodiment, when the
control substrate is disposed at the lower portion of the terminal
receiving board, a part such as a transformer having a large height
dimension can be disposed on the control substrate in the lower
portion between the plurality of terminal plates, and in this
regard, the limitation in the layout of the mounting part on the
control substrate can be decreased.
[0178] Next, as shown in FIGS. 1 to 5, right and left end top plate
portions 15 and 16 having a narrow width, and top plate portions 17
to 19 having a wide width at three locations in the center are
provided on the upper divided housing 21 of the main body housing
20 on the upper surface of the charger 10. The first battery
attachment portion 11 is disposed between the first left end top
plate portion 15 and the second center left side top plate portion
17. The second battery attachment portion 12 is disposed between
the second top plate portion 17 and the third center top plate
portion 18. The third battery attachment portion 13 is disposed
between the third top plate portion 18 and the fourth center right
side top plate portion 19. The fourth battery attachment portion 14
is disposed between the fourth top plate portion 19 and the fifth
right end top plate portion 16.
[0179] Each of the top plate portions 15 to 19 is set to the same
height position and is set to a higher position than each of the
terminal covers 11c to 14c of the battery attachment portions 11 to
14. Moreover, each of the receiving rail portions 11a, 11 a to 14a,
14a of the battery attachment portions 11 to 14 is provided to
protrude to the opposite inner side along the upper surface of each
of the top plate portions 15 to 19.
[0180] In this way, since each of the first to fourth battery
attachment portions 11 to 14 is disposed at a lower region than
each of the first to fifth top plate portions 15 to 19 positioned
at both right and left sides, for example, even when the charger 10
accidentally falls on the floor, or even when other articles such
as an electric tool are accidentally disposed on the charger 10
mounted on a work table, or the like, each of the battery
attachment portions 11 to 14 does not directly collide with the
floor surface, or other articles do not directly come into contact
with or do not collide with each of the battery attachment portions
11 to 14, and thus, damage to each of the battery attachment
portions 11 to 14 can be avoided in advance. Accordingly, each of
the first to fifth top plate portions 15 to 19 can function as a
side guide portion of each of the battery attachment portions 11 to
14.
[0181] As shown in FIGS. 1, 5, 13, and 17, each of the first to
fifth top plate portions 15 to 19 extends in the front-rear
direction along the upper surface of the main body housing 20. An
inclined surface, which is inclined at a larger angle in a
direction descending to the front surface side, is provided on the
front surface side of each of the first to fifth top plate portions
15 to 19. Operation display portions 51 and 52 for informing the
operation state of each of the first to fourth battery attachment
portions 11 to 14 are provided on inclined surfaces 17a and 19a of
the second top plate portion 17 and the fourth top plate portion 19
positioned at the right side and left side of the center. The first
left operation display portion 51 is disposed between the first
battery attachment portion 11 and the second battery attachment
portion 12, and the second right operation display portion 52 is
disposed between the third battery attachment portion 13 and the
fourth battery attachment portion 14. LEDs 51a and 51b which
display the operating conditions of the first battery attachment
portion 11 and the second battery attachment portion 12 are
collectively disposed on the first left operation display portion
51. LEDs 52a and 52b which display the operating conditions of the
third battery attachment portion 13 and the fourth battery
attachment portion 14 are collectively disposed on the second right
operation display portion 52.
[0182] Four LEDs are disposed on each of both operation display
portions 51 and 52. In the first operation display portion 51, the
operation state of the first battery attachment portion 11 is
displayed by two upper and lower LEDs of the left side, and the
operation state of the second battery attachment portion 12 is
displayed by two upper and lower LEDs of the right side. Moreover,
in the second operation display portion 52, the operation state of
the third battery attachment portion 13 is displayed by two upper
and lower LEDs of the left side, and the operation state of the
fourth battery attachment portion 14 is displayed by two upper and
lower LEDs of the right side. In each of both operation display
portions 51 and 52, a green LED 51a is disposed at the upper side,
and a red LED 51b is disposed at the lower side. Information such
as "during charging" or "charge complete" of each of the battery
attachment portions 11 to 14 is informed by combining flashing,
lighting, and turning-off of two upper and lower LEDs 51a and 51b,
and 52a and 52b.
[0183] In this way, since the first and second operation display
portions 51 and 52, which display the operations of the first to
fourth battery attachment portions 11 to 14 by the LEDs, are
disposed on the inclined surfaces 17a and 19a of the front surface
which are easily seen by the user, when the charger 10 is mounted
on the worktable or when the charger is mounted in a wall-hanging
state, it is possible to easily and visually recognize the charging
state of the battery packs B.
[0184] Moreover, the operation states of the first and second
battery attachment portions 11 and 12 are collectively displayed on
the first single operation display portion 51, and the operation
states of the third and fourth battery attachment portions 13 and
14 are collectively displayed on the second single operation
display portion 52. Accordingly, compared to a case when the
operation display portions are individually set for each of the
battery attachment portions 11 to 14, much information can be
informed in a smaller space.
[0185] According to the charger 10 of the present embodiment
configured as described above, the engagement convex portions 28
and 28 of the wall surface W side are hooked to the pair of right
and left hook portions (tumbler-shaped hole) 27e and 27e which are
provided on the bottom surface 27 of the main body housing 20, and
the fixing screws 29 and 29 are fastened to the pair of right and
left fixing holes 30 and 30, and thus it is possible to mount the
main body housing 20 and the charger 10 in a wall-hanging state on
the wall surface W. Accordingly, compared to the hook state of the
related art in which only the tumbler-shaped hole is used, it is
possible to mount the charger 10 in a more stable wall-hanging
posture, and for example, even when a person carelessly comes into
contact with the charger 10 in the wall-hanging state or the like,
positional deviation does not occur.
[0186] Moreover, since the charger is mounted in the state where
the charger is completely fixed to the wall surface W, the user can
operate the battery pack B with one hand even when the battery pack
B is attached to or is detached from the battery attachment
portions 11 to 14 of the charger 10. In this regard, handleability
of the charger 10 in the wall-hanging mounting state can be
increased.
[0187] In addition, according to the exemplified charger 10, since
the fixing hole 30 is provided on the bottom portion (bottom edge
portion 26a) of the lower recessed portion 26 provided at the
position which does not protrude from the side area S in a planar
view of the main body housing 20, strength of the bottom edge
portion 26a is increased, and thus, the charger is not easily
damaged. Accordingly, the thickness of each of the bottom edge
portions 26a and 26a is decreased, and thus, the required length of
each of the fixing screws 29 and 29 can be shortened. Moreover, the
screwing is performed through the fixing holes 30 and 30 on the
lower divided housing 22 side rather than the upper divided housing
21 side. In this regard, it is possible to securely and rigidly fix
the main body housing 20 to the wall surface W by short fixing
screws 29 and 29.
[0188] Moreover, the bottom edge portions 25a and 25a of the upper
recessed portions 25 and 25 are disposed to cover the upper portion
of the bottom edge portions 26a and 26a of the lower recessed
portions 26 and 26 in which the fixing holes 30 and 30 are
provided, and thus, the bottom edge portions 26a and 26a of the
lower recessed portions 26 and 26 can be configured so as not to be
easily damaged.
[0189] Moreover, the through-holes (strap attachment holes 31 and
31) which are coaxial with the fixing holes 30 and 30 are provided
on the bottom edge portions 25a and 25a of the upper recessed
portions 25 and 25, the through-holes are used as operating holes
into which a driver (screwdriver) D is inserted, and thus the
fastening operations of the fixing screws 29 and 29 with respect to
the fixing holes 30 and 30 can be performed rapidly and
conveniently. In this regard, it is possible to increase
workability in the mounting of the charger 10.
[0190] In addition, since the strap attachment holes 31 and 31
(through-holes) are provided on the upper divided housing 21 and
the fixing holes 30 and 30 are provided on the lower divided
housing 22, when the housings are manufactured by resin molding, a
molding die can be more simplified, and there can be reduction in a
manufacturing cost of the charger 10.
[0191] Various modifications can be applied to the exemplified
embodiment. For example, although the configuration is exemplified
in which the upper and lower recessed portions 25, 25, 26, and 26
are provided on the rear surface side of the main body housing 20
and the fixing holes 30 and 30 are provided on the bottom edge
portions 26a and 26a, the similar configurations may be provided on
the right and left portions of the main body housing 20.
[0192] Moreover, instead of the front surface side hook portions
27e and 27e, a fixing hole for fastening a fixing screw may be
provided, or the hook portions 27e and 27e may be omitted, or the
fixing screws 29 and 29 may be fastened to only the fixing holes 30
and 30 of the rear surface side, so that the charger may be fixed
in a wall-hanging state.
[0193] Moreover, the bottom edge portions 25a and 25a of the upper
recessed portions 25 and 25 may be omitted, and the lower recessed
portions 26 and 26 may be open to the upper surface of the main
body housing 20.
[0194] Moreover, the four-port type charger 10 is exemplified.
However, the present embodiment may be similarly applied to a
charger of one-port type, two-port type, three-port type, or five
or more-port type battery attachment portion.
[0195] In the exemplified wall-hanging structure, by screwing to
the wall, the charger can be mounted in a more stable wall-hanging
posture than the hooking state in which only the tumbler-shaped
hole is used. In contrast, in a wall-hanging structure according to
a second embodiment described below, the fixing hole for screwing
is omitted and a hook structure using the tumbler-shaped hole is
provided, and similar effects can be also obtained by the related
second embodiment.
[0196] FIGS. 25 to 27 show the wall-hanging structure according to
the second embodiment. The same reference numerals are used with
respect to the portions and configurations which do not need
modifications, and descriptions thereof are omitted. Hook portions
35 and 35 and regulating portions 36 and 36 are provided on four
corners of the bottom surface 27 of the main body housing 20.
Recessed hook portions 35a having a tumbler-shaped hole shape are
provided on each of the pair of right and left hook portions 35 and
35 of the rear surface side. Each of the pair of right and left
regulating portions 36 and 36 of the front surface side is a wall
portion which protrudes to the wall surface W side, and a recessed
releasing portion 36a is provided on the base side of the
regulating portion. Each of the recessed releasing portions 36a and
36a is provided on the rear surface side of the regulating portion
36. The regulating portions 36 and 36 are integrally molded to the
bottom surface 27 of the main body housing formed of a synthetic
resin.
[0197] Hook convex portions 37 and 37 corresponding to the hook
portions 35 and 35 of the rear surface side are provided on the
wall surface W on which the charger 10 is mounted. Moreover,
engagement convex portions 38 and 38 corresponding to the pair of
right and left regulating portions 36 and 36 are provided on the
lower portion of the right and left hook convex portions 37 and
37.
[0198] In order to mount the charger 10 in a wall-hanging state on
the wall surface W, first, as shown in FIG. 25, the hook convex
portions 37 are inserted into each of the upper side recessed hook
portions 35a and 35a. At this time, as shown in the drawings, the
front surface side of the charger 10 rises up from the wall surface
W, and an inclined posture in which the front surface side
regulating portions 36 and 36 are inclined so as not to interfere
with the engagement convex portions 38 and 38 is maintained, and
the upper side hook convex portions 37 and 37 are inserted into the
recessed hook portions 35a and 35a. Thereafter, as shown in FIG.
26, the charger 10 moves to the lower portion, and each of the hook
convex portions 37 and 37 are hooked to the recessed hook portion
35a. The charger 10 moves to the lower portion, and thus, the front
surface side regulating portions 36 and 36 are displaced to the
front sides (lower side) of the lower side engagement convex
portions 38 and 38.
[0199] As shown in FIG. 26, in the state where the charger 10 moves
to the lower side and the lower side regulating portions 36 and 36
are displaced to the front sides of the engagement convex portions
38 and 38, when the front surface side of the charger 10 moves to
the wall surface W side and the regulating portions 36 and 36 abut
the wall surface W as shown in FIG. 27, the mounting of the charger
10 to the wall surface W is completed. Each of the front surface
side regulating portions 36 and 36 abuts the wall surface W in the
front sides (lower side) of the engagement convex portions 38 and
38.
[0200] In this mounting state, each of the upper side hook portions
35 and 35 abuts the wall surface W, and the hook convex portion 37
is inserted into each of the recessed hook portions 35a and 35a
having a tumbler-shaped hole shape. Accordingly, in the charger 10,
the displacement to the lower portion, the displacement to the
right and left sides, and the displacement in a direction away from
the wall surface W are regulated. Moreover, in the mounting state
as shown in FIG. 27, the front surface side regulating portions 36
and 36 are positioned below the lower side engagement convex
portions 38 and 38 and function as a stopper, and thus, the upward
displacement of the charger 10 is regulated.
[0201] In addition, each of the rear surfaces (the upper surfaces
in the wall-hanging mounting state) 36b and 36b of both regulating
portions 36 and 36 is molded to be perpendicular to the wall
surface W in the wall-hanging mounting state, and thus, reliable
engagement states with respect to the engagement convex portions 38
and 38 can be obtained.
[0202] In this way, according to the wall-hanging structure of the
second embodiment, the charger 10 is mounted on the wall surface W
in the state where the positional deviation of the charger in both
the up and the down directions (attachment and detachment
directions of the battery pack B) is regulated. Accordingly, when
the battery pack B slides toward the lower portion and is attached
with respect to the first to fourth battery attachment portions 11
to 14 of the charger 10 in the wall-hanging state, the user does
not need to press the charger 10 with a hand so that the charger 10
is not displaced downward, and when the user slides the battery
pack B while grasping the battery pack B with one hand, it is
possible to rapidly and simply attach the battery pack B to the
battery attachment portions 11 to 14. Moreover, conversely, when
the battery pack B is detached from the battery attachment portions
11 to 14 and it is sufficient for the user to slide the battery
pack B to the upper portion while grasping the battery pack B with
one hand, the user does not need to press the charger 10 so that
the charger is not displaced. In this regard, handleability
(operability) of the charger 10 can be increased.
[0203] In addition, according to the wall-hanging structure of the
exemplified second embodiment, since the displacement in the
up-down and right-left directions of the charger 10 and the
displacement of the charger 10 in the direction away from the wall
surface W are regulated, even when a person carelessly comes into
contact with the charger or the like, the positional deviation is
assuredly prevented.
[0204] Especially, since the rear surfaces 36b and 36b of both
lower side regulating portions 36 and 36 are formed to be
perpendicular to the wall surface W in the detachment direction
(upward direction) of the charger, the hooked state of each of the
rear surfaces 36b and 36b with respect to the engagement convex
portions 38 and 38 is more accurately maintained, and as a result,
the displacement in the detachment direction of the charger 10 is
securely regulated, and convenience in the detachment operation is
improved.
[0205] On the other hand, for example, when the rear surfaces of
both regulating portions 36 and 36 are provided to be inclined in a
direction (an obtuse angle direction with respect to the bottom
portion of the recessed portion 36a) in which the tip side is
displaced to the lower portion considering a draft angle of a
molding die, the displacement in the detachment direction (the
upward direction in the wall-hanging mounting state) of the charger
10 is easily permitted, and the hooked state of the charger with
respect to the engagement convex portion 38 becoming unstable.
Accordingly, when the user grasps the battery pack B with one hand
and detaches the battery pack from the battery attachment portions
11 to 14, the user needs to press the charger with the other hand
so that the charger 10 itself is not displaced, and in this regard,
usability of the charger 10 is decreased.
[0206] Therefore, as exemplified, with respect to the angles of the
rear surfaces 36b and 36b of both regulating portions 36 and 36, in
addition to the configuration in which the rear surfaces are molded
to be perpendicular to the wall surface W, more preferably, the
rear surfaces are molded to be inclined in a direction of an acute
angle in which the tip side is displaced upward.
* * * * *