U.S. patent application number 15/715932 was filed with the patent office on 2019-03-07 for portable light and charging device therefor.
The applicant listed for this patent is Streamlight, Inc.. Invention is credited to W. Ross McLENNAN, William D. WORMAN.
Application Number | 20190072242 15/715932 |
Document ID | / |
Family ID | 65517886 |
Filed Date | 2019-03-07 |
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United States Patent
Application |
20190072242 |
Kind Code |
A1 |
WORMAN; William D. ; et
al. |
March 7, 2019 |
PORTABLE LIGHT AND CHARGING DEVICE THEREFOR
Abstract
A portable light and charging device therefor. The portable
light includes a light head that is pivotable relative to a light
body and that has a projection, wherein the light body has a latch
ring that can engage the projection to retain the light head in a
stowed position and can be stowed. The charging device defines a
receptacle for receiving the portable light and has a pair of latch
arms that pivot to permit the portable light to be placed into and
removed from the receptacle and that are biased to retain the
portable light in the receptacle.
Inventors: |
WORMAN; William D.;
(Phoenixville, PA) ; McLENNAN; W. Ross; (Perkasie,
PA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Streamlight, Inc. |
Eagleville |
PA |
US |
|
|
Family ID: |
65517886 |
Appl. No.: |
15/715932 |
Filed: |
September 26, 2017 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
62554297 |
Sep 5, 2017 |
|
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H02J 7/0045 20130101;
F21Y 2115/10 20160801; H02J 7/0063 20130101; F21L 4/04 20130101;
F21L 4/08 20130101 |
International
Class: |
F21L 4/08 20060101
F21L004/08; F21L 4/04 20060101 F21L004/04; H02J 7/00 20060101
H02J007/00 |
Claims
1. A portable light comprising: a light body having a handle and a
base for receiving a source of electrical power; a light head
pivotably mounted at a base end thereof to a forward end of said
light body and having a projection at an end distal the base end
thereof, said light head including a light source energizable for
producing light; a switch supported by said light body and
actuatable for energizing said light source; and a latch ring
pivotably mounted at the forward end of said light body and
configured for being pivoted to engage the projection of said light
head when said light head is pivoted to be adjacent to the forward
end of said light body, said latch ring being pivotable to a first
position whereat it does not engage the projection of said light
head, whereby said light head is not constrained by said latch
ring, and being pivotable to a second position whereat it engages
the projection of said light head when said light head is pivoted
to be adjacent the forward end of said light body.
2. The portable light of claim 1 wherein said light body has at its
forward end a slot or a recess or a slot and a recess, wherein the
slot and/or recess are configured to receive said latch ring
therein when said latch ring is pivoted to the first position.
3. The portable light of claim 2 wherein the slot and/or recess are
configured to have an interference fit with said latch ring thereby
to retain the latch ring in the first position.
4. The portable light of claim 1 wherein said latch ring is
pivotable to a third position whereat it is stowed in a further
recess of said light body.
5. The portable light of claim 4 wherein the further recess is
configured to have an interference fit with said latch ring thereby
to retain the latch ring in the third position.
6. The portable light of claim 1 wherein said latch ring has an end
ring at each of opposing ends thereof, and wherein the pivotable
mounting of said latch ring includes a pivot pin that passes
through the end rings of said latch ring and through an opening in
said light body.
7. The portable light of claim 6 wherein said portable light
includes a D-ring having an end ring at opposing ends thereof,
wherein said pivot pin passes through the end rings of said D-ring,
whereby said latch ring and said D-ring are independently pivotable
on said pivot pin.
8. The portable light of claim 1 wherein said light body has a base
configured for said light being placed on a surface, wherein said
light head is pivotably mounted with its base end pivoted at a
forward end of the base of said light body, and wherein said latch
ring is pivotably mounted on the forward end of said light body at
a location distal the base of said light body whereat said latch
ring is pivotable to engage the projection of said light head.
9. A charging device for a portable light having a light body
containing a rechargeable battery, the light body of the portable
light having opposing sides and a latching recess of a
predetermined shape in a base thereof, and having one or more
charging contacts for receiving electrical power for charging the
rechargeable battery, the charging device comprising: a charger
housing having a receptacle configured to receive the light body of
the portable light and having one or more charging contacts
configured to make electrical connection to the one or more
charging contacts of the portable light when the portable light is
disposed in the receptacle of said charger housing; a release latch
moveably mounted to said charger housing and having a projection,
wherein when said release latch is moved to a first position the
projection of said release latch extends into the receptacle of the
charger housing for engaging the portable light when the portable
light is disposed in the receptacle of said charging device,
whereby the portable light is retained in said charging device, and
wherein when said release latch is moved to a second position the
projection of said release latch does not extend into the
receptacle of the charger housing and does not engage the portable
light when the portable light is disposed in the receptacle of said
charging device, whereby the portable light is released to be
removed from the receptacle of said charging device; a first
biasing element configured to bias said release latch towards the
first position, whereby said release latch is biased to move to
retain the portable light in said charging device; a pair of latch
arms each moveably mounted on said charger housing in opposing
positions at opposite sides of the receptacle thereof, said latch
arms being moveable to move closer together to extend into the
receptacle and to move farther apart to be out of the receptacle,
wherein each latch arm has a distal end configured to engage the
light body of the portable light when the portable light is
disposed in the receptacle of said charging device and the latch
arms are moved to be closer together and to not engage the light
body of the portable light when the portable light is disposed in
the receptacle of said charging device and the latch arms are moved
to be farther apart; and a second biasing element configured to
bias said latch arms towards each other, whereby said latch arms
are biased to move into the receptacle to retain the portable light
in said charging device.
10. The charging device of claim 9 wherein the projection of said
release latch has a shape complementary to the latching recess of
predetermined shape on the base of the portable light, wherein when
said release latch is moved to the first position the projection of
said release latch engages the latching recess of the portable
light when the portable light is disposed in the receptacle of said
charging device, and wherein when said release latch is moved to
the second position the projection of said release latch does not
extend into the receptacle of the charger housing and does not
engage the latching recess of the portable light when the portable
light is disposed in the receptacle of said charging device.
11. The charging device of claim 9 wherein said release latch is
pivotably mounted to move into and out of the receptacle of said
charging device.
12. The charging device of claim 9 wherein the distal end of each
latch arm includes an inwardly directed flange configured to engage
the light body of the portable light when the portable light is
disposed in the receptacle of said charging device.
13. The charging device of claim 12 wherein the inwardly directed
flange of each latch arm is: triangular in shape; or chamfered or
beveled; or triangular in shape and chamfered or beveled, wherein
said latch arms are movable outwardly by said light being inserted
into the receptacle of said charging device or by said light being
removed from the receptacle of said charging device, whereby the
portable light is insertable into and is removable from the
charging device in a snap-in, snap-out manner.
14. The charging device of claim 12 wherein the respective flanges
of each of said latch arms engage a respective shoulder on the side
of the light body of the portable light.
15. A portable light and charging device therefor, wherein said
portable light comprises: a light body having a handle and a base
for receiving a source of electrical power, having a latching
recess in the base thereof, and having one or more charging
contacts configured to make electrical connection to the source of
electrical power; a light head pivotably mounted at a base end
thereof to a forward end of said light body and having a projection
at an end distal the base end thereof, said light head including a
light source energizable for producing light; a switch supported by
said light body and actuatable for energizing said light source;
and a latch ring pivotably mounted at the forward end of said light
body and configured for being pivoted to engage the projection of
said light head when said light head is pivoted to be adjacent to
the forward end of said light body, said latch ring being pivotable
to a first position whereat it does not engage the projection of
said light head, whereby said light head is not constrained by said
latch ring, and being pivotable to a second position whereat it
engages the projection of said light head when said light head is
pivoted to be adjacent the forward end of said light body; and
wherein said charging device comprises: a charger housing having a
receptacle configured to receive the light body of said portable
light and having one or more charging contacts configured to make
electrical connection to the one or more charging contacts of said
portable light when said portable light is disposed in the
receptacle of said charger housing; a release latch moveably
mounted to said charger housing and having a projection, wherein
when said release latch is moved to a first position the projection
of said release latch extends into the receptacle of the charger
housing for engaging said portable light when said portable light
is disposed in the receptacle of said charging device, whereby said
portable light is retained in said charging device, and wherein
when said release latch is moved to a second position the
projection of said release latch does not extend into the
receptacle of the charger housing and does not engage said portable
light when said portable light is disposed in the receptacle of
said charging device, whereby said portable light is released to be
removed from the receptacle of said charging device; a first
biasing element configured to bias said release latch towards the
first position, whereby said release latch is biased to move to
retain said portable light in said charging device; a pair of latch
arms each moveably mounted on said charger housing in opposing
positions at opposite sides of the receptacle thereof, said latch
arms being moveable to move closer together to extend into the
receptacle and to move farther apart to be out of the receptacle,
wherein each latch arm has a distal end configured to engage the
light body of said portable light when said portable light is
disposed in the receptacle of said charging device and the latch
arms are moved to be closer together and to not engage the light
body of said portable light when said portable light is disposed in
the receptacle of said charging device and the latch arms are moved
to be farther apart; and a second biasing element configured to
bias said latch arms towards each other, whereby said latch arms
are biased to move into the receptacle to retain said portable
light in said charging device.
16. The portable light and charging device of claim 15 wherein said
light body has at its forward end a slot or a recess or a slot and
a recess, wherein the slot and/or recess are configured to receive
said latch ring therein when said latch ring is pivoted to the
first position.
17. The portable light and charging device of claim 16 wherein the
slot and/or recess are configured to have an interference fit with
said latch ring thereby to retain the latch ring in the first
position.
18. The portable light and charging device of claim 15 wherein said
latch ring is pivotable to a third position whereat it is stowed in
a further recess of said light body.
19. The portable light and charging device of claim 18 wherein the
further recess is configured to have an interference fit with said
latch ring thereby to retain the latch ring in the third
position.
20. The portable light and charging device of claim 15 wherein said
latch ring has an end ring at each of opposing ends thereof, and
wherein the pivotable mounting of said latch ring includes a pivot
pin that passes through the end rings of said latch ring and
through an opening in said light body.
21. The portable light and charging device of claim 20 wherein said
portable light includes a D-ring having an end ring at opposing
ends thereof, wherein said pivot pin passes through the end rings
of said D-ring, whereby said latch ring and said D-ring are
independently pivotable on said pivot pin.
22. The portable light and charging device of claim 15 wherein said
light body has a base configured for said light being placed on a
surface, wherein said light head is pivotably mounted with its base
end pivoted at a forward end of the base of said light body, and
wherein said latch ring is pivotably mounted on the forward end of
said light body at a location distal the base of said light body
whereat said latch ring is pivotable to engage the projection of
said light head.
23. The portable light and charging device of claim 15 wherein the
projection of said release latch has a shape complementary to the
latching recess of predetermined shape on the base of said portable
light, wherein when said release latch is moved to the first
position the projection of said release latch engages the latching
recess of said portable light when said portable light is disposed
in the receptacle of said charging device, and wherein when said
release latch is moved to the second position the projection of
said release latch does not extend into the receptacle of the
charger housing and does not engage the latching recess of said
portable light when said portable light is disposed in the
receptacle of said charging device.
24. The portable light and charging device of claim 15 wherein said
release latch is pivotably mounted to move into and out of the
receptacle of said charging device.
25. The portable light and charging device of claim 15 wherein the
distal end of each latch arm includes an inwardly directed flange
configured to engage the light body of said portable light when
said portable light is disposed in the receptacle of said charging
device.
26. The portable light and charging device of claim 25 wherein the
inwardly directed flange of each latch arm is: triangular in shape;
or chamfered or beveled; or triangular in shape and chamfered or
beveled, wherein said latch arms are movable outwardly by said
light being inserted into the receptacle of said charging device or
by said light being removed from the receptacle of said charging
device, whereby the portable light is insertable into and is
removable from the charging device in a snap-in, snap-out
manner.
27. The portable light and charging device of claim 25 wherein the
respective flanges of each of said latch arms engage a respective
shoulder on the side of the light body of said portable light.
Description
[0001] This Application claims the benefit of U.S. Provisional
Patent Application No. 62/554,297 entitled "PORTABLE LIGHT AND
CHARGING DEVICE THEREFOR" which was filed on Sep. 25, 2017, which
is hereby incorporated herein by reference in its entirety.
[0002] The present invention relates to a portable light and/or to
a charging device, in particular, to a portable light and/or a
charging device having compatible interfaces whereby the portable
light may be placed into the charging device for being charged and
may be removed therefrom for use.
[0003] Portable lights are employed in many fields and environments
in which the ability of a light to meet a particular need is
limited because the light is either in a fixed configuration or the
light includes movable parts that are not movable to a desired
position or positions. Many different approaches have been
utilized, such a having the light source supported on a pivoted
structure or at the end of a flexible and/or bendable stalk. Often,
what is gained in position-ability of the light source may be
counter balanced by reduced robustness and/or durability.
[0004] These issues can be more challenging in relation to larger
and higher power lights, in particular those lights that may be
employed under difficult and/or hazardous environments, such as may
be experienced by fire fighters and other first responders.
[0005] It is also desirable that portable lights used by fire
fighters and other first responders also be ready for use at a
moment's notice, and so these lights typically include a
rechargeable battery. A charger, or commonly a bank of chargers,
may be mounted in a convenient location, such as on a wall at a
fire station or other first responder facility, or on a wall or
bulkhead or panel of a vehicle used by fire fighters and other
first responders, where the rechargeable portable lights may be
placed into the chargers for recharging following use, for
maintaining a fully charged and ready state, and for being quickly
and easily removed when needed.
[0006] Moreover, fire fighters and other first responders often are
wearing specialized and/or protective clothing, including gloves,
and so their portable lights should be easily placeable into and
removable from the chargers in a manner that does not require
precision placement and motions, which may be difficult to execute
while wearing protective gear.
[0007] Applicant believes that the foregoing may be addressed by a
portable light that has a pivotable light source that can be
pivoted over a large range of angles relative to a body of the
light.
[0008] Applicant also believes that a charger configured to receive
the portable light when inserted therein over a range of angles and
to release the portable light when it is removed therefrom over a
range of angles would also address such needs.
[0009] Applicant believes there may be a need for a portable light
and charger that together are configured to provide the foregoing
features including movability of a light source over a range of
angles and the insertion of the portable light into and its removal
from the charger over a range of angles.
[0010] Accordingly, a portable light may comprise: a light body
having a handle and a base for receiving a source of electrical
power; a light head including a light source energizable for
producing light, the light head being pivotably mounted to the
light body and having a projection; a switch actuatable for
energizing the light source; and a latch ring mounted to the light
body and configured to engage the projection of the light head, the
latch ring having a first position whereat it does not engage the
projection of the light head and a second position whereat it
engages the projection of the light head when the light head is
adjacent the light body.
[0011] Accordingly, a charger for a portable light may comprise: a
charger housing having a receptacle configured to receive the
portable light and having a charging contact configured to make
electrical connection to the portable light when the portable light
is disposed in the receptacle; a release latch moveably mounted to
the charger housing and having a projection. The release latch has
a first position in which the projection thereof extends into the
receptacle for engaging the portable light, and has a second
position in which the projection does not extend into the
receptacle and does not engage the portable light, and a first
biasing element to bias the release latch towards the first
position. A pair of latch arms on the charger housing in opposing
positions are moveable to extend into the receptacle and out of the
receptacle to engage and not engage the portable light in the
receptacle of the charging device. A second biasing element biases
the latch arms towards each other to retain the portable light in
the charging device.
[0012] Accordingly, a portable light and a charger for a portable
light may comprise: a portable light including: a light body having
a handle and a base for receiving a source of electrical power; a
light head including a light source energizable for producing
light, the light head being pivotably mounted to the light body and
having a projection; a switch actuatable for energizing the light
source; and a latch ring mounted to the light body and configured
to engage the projection of the light head, the latch ring having a
first position whereat it does not engage the projection of the
light head and a second position whereat it engages the projection
of the light head when the light head is adjacent the light body;
and a charger including a charger housing having a receptacle
configured to receive the portable light and having a charging
contact configured to make electrical connection to the portable
light when the portable light is disposed in the receptacle; a
release latch moveably mounted to the charger housing and having a
projection. The release latch has a first position in which the
projection thereof extends into the receptacle for engaging the
portable light, and has a second position in which the projection
does not extend into the receptacle and does not engage the
portable light, and a first biasing element to bias the release
latch towards the first position. A pair of latch arms on the
charger housing in opposing positions are moveable to extend into
the receptacle and out of the receptacle to engage and not engage
the portable light in the receptacle of the charging device. A
second biasing element biases the latch arms towards each other to
retain the portable light in the charging device.
[0013] In summarizing the arrangements described and/or claimed
herein, a selection of concepts and/or elements and/or steps that
are described in the detailed description herein may be made or
simplified. Any summary is not intended to identify key features,
elements and/or steps, or essential features, elements and/or
steps, relating to the claimed subject matter, and so are not
intended to be limiting and should not be construed to be limiting
of or defining of the scope and breadth of the claimed subject
matter.
BRIEF DESCRIPTION OF THE DRAWING
[0014] The detailed description of the preferred embodiment(s) will
be more easily and better understood when read in conjunction with
the FIGURES of the Drawing which include:
[0015] FIG. 1 is a perspective view of an example embodiment of a
portable light disposed in an example embodiment of a charging
device, and FIGS. 1A and 1B are perspective views of the example
portable light partially disposed in the example charging device,
as when being placed into and/or removed therefrom;
[0016] FIG. 2 is a side cross-sectional view of the example
portable light and the example charging device substantially in the
position of FIGS. 1A and 1B, and FIGS. 2A and 2B are enlarged
portions of side cross-sectional views illustrating details
relating to the positioning of the example light in the example
charging device;
[0017] FIGS. 3A and 3B are front and rear perspective views,
respectively, of the example portable light with an example
embodiment of a light head thereof pivoted relative thereto;
[0018] FIG. 4 is a perspective view of an example embodiment of the
light head of the example portable light of FIGS. 1 through 3, and
FIG. 4A is an enlarged exploded perspective view of an example
D-ring and example head latch of the light head of FIG. 4;
[0019] FIGS. 5A through 5C are perspective views of an example
latch arrangement with the example head latch member in clear,
locked and stowed positions, respectively;
[0020] FIGS. 6A and 6B are front and rear perspective views,
respectively, of the example light head apart from the example
portable light;
[0021] FIG. 7 is an exploded view of the example light head;
[0022] FIG. 8 is a perspective view of the example embodiment of
the charging device, and FIGS. 8A and 8B are plan views of the
charging device with latch arms thereof in retracted and extended
positions, respectively;
[0023] FIG. 9A is an exploded view of the example charging device
with a charger housing thereof spaced apart from a bottom cover
thereof, FIG. 9B is a partially exploded perspective view of the
charger housing, and FIG. 9C is a perspective view of the example
charger housing showing the interior arrangement thereof; and
[0024] FIG. 10 is an exploded view of the example charging device
of FIGS. 8 and 9.
[0025] In the Drawing, where an element or feature is shown in more
than one drawing figure, the same alphanumeric designation may be
used to designate such element or feature in each figure, and where
a closely related or modified element is shown in a figure, the
same alphanumerical designation may be primed or designated "a" or
"b" or the like to designate the modified element or feature.
Similar elements or features may be designated by like alphanumeric
designations in different figures of the Drawing and with similar
nomenclature in the specification. As is common, the various
features of the drawing are not to scale, the dimensions of the
various features may be arbitrarily expanded or reduced for
clarity, and any value stated in any Figure is by way of example
only.
DESCRIPTION OF THE PREFERRED EMBODIMENT(S)
[0026] FIG. 1 is a perspective view of an example embodiment of a
portable light 100 disposed in an example embodiment of a charging
device 400, and FIGS. 1A and 1B are perspective views of the
example portable light 100 partially disposed in the example
charging device 400, as when being placed into and/or removed
therefrom; and FIG. 2 is a side cross-sectional view of the example
portable light 100 and the example charging device 400
substantially in the position of FIGS. 1A and 1B, and FIGS. 2A and
2B are enlarged portions of side cross-sectional views of FIGS. 1A,
1B and 2 illustrating details relating to the positioning of the
example light 100 in the example charging device 400.
[0027] Light 100 includes a light housing 110 or body 110 having a
base 120 having a forward end 122 and a rearward end or heel 124, a
handle 130 supported on forward support 132 and rearward support
134, a light head 200 pivotably supported at the forward end 122 of
base 120. Light 100 preferably includes one or more loops or rings
140, e.g., D-rings 140, supported on or near to handle 130, to
which a strap or lanyard may be attached. Preferably, each of
D-rings 140 is pivotably attached to handle 130 by a respective pin
142 that passes through rings 140R at the respective ends of
D-rings 140 and through the housing 110 at or near to handle 130.
Typically, pivot pin 144 has a head at one end and is swaged or
peened or otherwise fastened at the other end so as to be retained
in its position in or near handle 130 to retain D-ring 140 to light
100. Typically, a washer 144 may be provided at the swaged or
peened end of pivot pin 142.
[0028] In a preferred embodiment, light head 200 includes a head
housing 210 supporting a plurality of light sources 220, e.g.,
three light sources 220, aimed substantially in the same general
direction to cooperate to provide a beam of light, e.g., a beam of
substantial light intensity, in that general direction. Each light
source 220 may include a light emitting diode (LED) light source
224 that is selectively energizable to produce light, e.g.,
responsive to actuation of switch actuator assembly 160, 164.
Typically a source of electrical power 190, e.g., a battery 190,
may be provided in the base 120 of light housing 110. Switch
actuator assembly 160 controls an electrical switch in light
housing 110 to selectively cause electrical power from power source
190 to be coupled to light sources 220, e.g., to LEDs 224 therein,
thereby to energize light sources 220, 224, to produce light.
[0029] Each of light sources 220 preferably includes an optically
reflective element 222 that forms the light emitted by the LED 224
into a light beam having a desired direction and beam width that
passes through a substantially transparent lens 226 to be emanated
from light head 200, e.g., in a direction substantially
perpendicular to the face of head housing 210 that supports light
sources 220. Reflective elements 222 maybe, e.g., curved reflective
surfaces 222 that reflect light from LEDs 224 or may be, e.g.,
internally reflective solid optical elements, e.g., totally
internally reflective (TIR) optical elements 222, as may be
desired.
[0030] Preferably housing 110 has two opposing spaced apart pivot
supports 150 at the forward end 122 of base 120 between which light
head 200 is pivotably supported and retained, i.e. in a recess 152
defined by the forwardly extending opposing pivot supports 122,
150. Light head 200 may be pivoted or rotated upward about an axis
between pivot supports 122 to be in a position as illustrated in
FIG. 1, which may be referred to as a stowed position, and may be
pivoted or rotated away, or deployed, from that stowed position by
up to about 180.degree. or more. Preferably, a head latch 170,
e.g., including a latch ring 172 is provided to retain light head
200 in its stowed position and to release light head 200 to be
pivoted away from the stowed position.
[0031] A charging device 400 is preferably provided that is
configured to receive portable light 100 therein for charging
and/or recharging the power source of light 100, e.g., typically a
power source 190 disposed in the base 120 thereof. It is preferred
that portable light 100 and charging device 400 are configured so
that light 100 may be placed into charging device 400 from a range
of positions and angles as might be convenient for a user, rather
than requiring a precise positioning and movement of light 100 in
order to properly seat light 100 in charging device 400. Charging
device 400 includes a charger housing 410 that is configured to
have a receptacle 430 that is complementary to the shape of the
base 120 of light 100 for receiving the base 120 therein and that
includes one or more retaining elements that retain the base 120 of
light 100 in charging device 400 in a position wherein respective
electrical contacts of light 100 are in electrical contact with
electrical contacts of charging device 400 so that charging current
can flow from charging device 400 to light 100 for charging the
electrical power source 190 thereof. Typically, a pair of charging
contacts may be provided on the heel 124 of base 120 in positions
complementary to the position of a pair of charging contacts on the
end wall 434 of receptacle 430.
[0032] Typically the electrical contacts of light 100, e.g., a pair
of contacts, are disposed at the heel 124 of base 120 thereof and
the electrical contacts of charging device 400, e.g., a pair of
contacts, are disposed at the closed end wall 434 of receptacle 430
thereof, e.g., in positions complementary to those of the
electrical contacts of light 100 for coming into electrical contact
when light 100 is substantially fully seated in receptacle 430 of
charging device 400. Receptacle 430 of charging device housing 410
is defined by a pair of opposing side walls 432 and an adjoining
end wall 434 that define a space that is slightly larger than the
base 120 of light housing 110. Side walls 432 and end wall 434
define and surround a base surface of receptacle 430.
[0033] Charger housing 410 further includes a pair of opposing
pivotable latch arms 420 disposed adjacent to the ends of side
walls 432 that are distal the closed end wall 434. Latch arms 420
are pivotable outwardly from charger housing 410 so as to
facilitate the placing of light housing 110 therein and the
removing of light housing 110 therefrom, whereby light 100 may
easily be placed into and removed from charging device 400.
Preferably pivotable latch arms 420 are biased, e.g., by a spring
or springs, to move toward charger housing 410, i.e. toward each
other, thereby to engage the base 120 of light 100 for tending to
retain light 100 in charging device 400. A pair of projections on
opposing sides of base 120 are configured to be engaged by latch
arms 420 when light 100 is substantially fully seated in receptacle
430 of charging device 400.
[0034] Because latch arms 420 are free to pivot simply by over
coming the biasing provided by the spring or springs thereof, light
100 may be easily "snapped" into charging device 400, e.g., by a
user who is holding a light 100, e.g., by its handle 130. This
"snap in" action is operative whether light 100 is moved toward
charging device 400 at an angle as illustrated in FIGS. 1A and 1B
and is then rotated so that base 120 is in receptacle 430 or
whether light 100 is slid (moved laterally) into or out of
receptacle 430 with the bottom of base 120 substantially parallel
to the surface of charger housing 410 extending between side walls
432 thereof. As a result, light 100 may easily and conveniently be
placed into charging device 400 with little concern for its
orientation relative to charging device 400 (other than that the
heel 124 of base 120 is towards end wall 434).
[0035] Preferably, light housing 110 has a rearward extension 128
near the bottom of the heel or rearward end 124 of base 120 that is
configured to move into a space under contact support 464 which
supports electrical contacts 460 in receptacle 430 of charging
device 400. Support 464 extends from the rear wall 434 of
receptacle 430 of charging device 400 to support electrical
contacts 460 in a predetermined location relative to light 100 when
light 100 is disposed in receptacle 430 of charging device 400.
[0036] With extension 128 under support 464, the rearward end 124
of light 100 is positioned so that the respective electrical
contacts of light 100 and charging device 400 are properly aligned
to make electrical contact, and the heel 124 of light 100 is
retained in receptacle 430. That engagement of heel 128 and support
464 along with the two latch arms 420 provides three points of
contact with housing 110 for retaining light 100 in charging device
400. Thus, light 100 can be hooked by support 464 and snapped over
latch arms 420 for rapidly being placed into receptacle 430, i.e.
in a "hook and snap" manner, also referred to as "snap-in."
[0037] Latch arms 420 engaging base 120 of light 100 cooperate with
an edge of base 120 thereof to retain light 100 in the charging
receptacle 430 of charging device 400. For example, the base 120
may be wider at or near its bottom surface so that the transition
to a narrower portion thereof provides a pair of opposing shoulders
which the ends of latch arms 420 engage for retaining light 100 in
receptacle 430. Preferably latch arms 420 are biased towards each
other thereby to move over such shoulders or other projections of
base 120 to maintain positive engagement therewith.
[0038] Charging device 400 preferably includes a latch member 442
that engages a latching recess 126 in base 120 of light 100 when
light 100 is substantially fully disposed in receptacle 430 of
charging housing 410 thereby to retain light 100 thereon, e.g., to
prevent its removal except a positive action be taken. Latch member
442 may be part of release actuator 440 or may be a separate part
operatively coupled thereto.
[0039] Release actuator 440 is movable in base 410 and is coupled
to latching member 442 such that when release actuator 440 is
depressed, e.g., moved toward (into) base 410, latching member 442
moves away from and disengaging from base 120 of light 100, thereby
to permit light 100 to be removed from charging device 400 simply
by overcoming the retaining force of pivoting latch arms 420. Thus,
light 100 may be "snapped out" of charging device 400 once actuator
440 is released and light 100 is slid slightly forward, in a
somewhat similar manner to it being "snapped in" to charging device
400. Removal of light 100 may be by sliding it in a direction
parallel to base housing 410, e.g., parallel to the bottom of
receptacle 430, or by pulling it out of receptacle at an angle
after being moved a short distance forward, e.g., substantially in
any direction opposite to the directions in which it may be
inserted into receptacle 430. This "snap in-snap out" feature can
be particularly advantageous when it in necessary or desirable to
quickly place light 100 into charging device 400 or to quickly
remove it therefrom.
[0040] FIGS. 3A and 3B are front and rear perspective views,
respectively, of the example portable light 100 with an example
embodiment of a light head 200 thereof pivoted relative thereto;
FIG. 4 is a perspective view of an example embodiment of the light
head 200 of the example portable light 100 of FIGS. 1 through 3,
and FIG. 4A is an enlarged exploded perspective view of an example
D-ring 140 and example head latch 170 of the light head 200 of FIG.
4; and FIGS. 5A through 5C are perspective views of an example
latch arrangement 170 with the example head latch member 172 in
clear (unlocked), locked and stowed positions, respectively.
[0041] Light head 200 is pivotably mounted in pivot supports 150
between forward ends 122 of base 120 so as to pivot about an axis
transverse to base 120 and handle 130. Each pivot support 150
includes a substantially cylindrical projection 202 that extends
outwardly from the light head 200 and into a substantially
cylindrical receptacle 152 at the inner side of the forward end 122
of base 120, with both projections 202 and both receptacles 152
being coaxial, i.e. along a common axis transverse to base 120.
[0042] While light head is illustrated in a pivoted position that
is about 45.degree. from its stowed position closely adjacent to
forward handle support 132, light head 200 may be pivoted by at
least 150.degree. from its stowed position, and preferably at least
about 180.degree. from its stowed position, thereby to direct light
rearwardly along the bottom of base 120 of light housing 110. It
can be seen that housing 210 of light head 200 has a front housing
230 and a rear housing 240 and that there are plural slots in rear
housing 240, e.g., for enabling air flow for cooling the light
sources 220 therein.
[0043] In one embodiment, D-ring 140 and head latch D-ring 170 are
pivotably mounted at the upper forward end of light 100, e.g., at
the forward end of handle 130. D-Ring 140 is formed into a
respective ring 140R at each of its ends wherein rings 140R are
configured so that a common axis passes through both rings 140R.
Similarly, head latch D-Ring 170 is a latch loop 172 or latch ring
172 that is formed into a respective ring 172R at each of its ends
wherein rings 172R are configured so that a common axis passes
through both rings 172R. Housing 110 has a through hole 114 through
which pivot pin 142 passes with the ring ends 140R of D-ring 140
straddling the exterior of housing 110 at through hole 114 and with
the ring ends 172R of head latch loop 172 in a recess thereat,
whereby both D-ring 140 and head latch loop 172 are pivotable on
pivot pin 142. Typically, pin 142 has an enlarged diameter, e.g., a
head, at one end thereof and the distal end thereof is peened or
swaged over a washer 144 that is adjacent to end ring 140R of
D-ring 140.
[0044] Pivot pin 142 also passes through a switch actuator assembly
160 including an electrical switch 162 for controlling operation of
light 100 which is actuated via an exposed switch actuator 164
which is accessible externally to light 100, e.g., near the forward
end of handle 130. Actuator 164 is typically of a flexible material
so as to deform when pressed to transfer force to switch 162
thereby to effect electrical actuation thereof.
[0045] In assembly, pivot pin 142 is inserted through an end ring
140R of D-ring 140, into hole 114 of housing 110, through an end
ring of latching ring 170, through switch actuator assembly 160,
through the other end ring of latching ring 170, through the
remainder of hole 114, through the other end ring 140R of D-ring
140, and through washer 144, after which the end of pivot pin 142
is peened or swaged so as to not be removable.
[0046] Head latch 170 including latch loop 172 may be pivoted
outwardly from light housing 110 into a position 1 as illustrated
in FIG. 5A whereby it is clear of or away from head 200 thereby
allowing head 200 to be freely pivoted toward or away from light
housing 110. Light housing 110 preferably has a pair of slots 170S
at the forward end of handle 130, e.g., in the underside of switch
assembly 160, thereof that have an interference fit with latch loop
172 for retaining latch loop 172 in the clear position.
[0047] The interference fit for retaining latch loop 172 in
position may be provided by the center-to-center distance between
the slots 170S being slightly larger than is the center-to-center
spacing of the sides of latch loop 172, or by the center-to-center
distance between the slots 170S being slightly smaller than is the
center-to-center spacing of the sides of latch loop 172, or by the
slots 170S each being slightly narrower in width than the diameter
of the wire or rod from which latch loop 172 is formed.
[0048] Head latch 170 including latch loop 172 may be pivoted
inwardly toward light housing 110 into a position 2 whilst light
head 200 is seated or stowed, e.g., pivoted upward so as to be
close to light housing 110, as illustrated in FIG. 5B whereby latch
loop 172 engages a projection 217 or other feature 217 of light
head 200 thereby to engage and retain, e.g., lock, light head 200
adjacent to light housing 110. Latch projection 217 of light head
200 is preferably of like size or slightly larger than is the
opening in latch loop 172 for having an interference fit therewith
to retain latch 170 in the latched or locked position wherein it
engages projection 217 of head 200, thereby to retain head 200 in
its stowed position adjacent to light housing 110.
[0049] Head latch 170 including latch loop 172 may be pivoted
inwardly toward light housing 110 into a position 3 whilst light
head 200 is pivoted away from its seated, e.g., pivoted upward,
position so as to be close to the underside of the forward end of
handle 130, e.g., to the underside of switch assembly 160, of light
housing 110 as illustrated in FIG. 5C whereby latch loop 172 is
stowed or nested against light housing 110 and does not engage or
retain light head 200 relative to light housing 110. Light housing
110 preferably has a recess 170R in the underside of the forward
end of handle 130 thereof into which latch loop 172 is received in
the stowed position. This recess 170R is slightly narrower or
smaller than the dimension across latch loop 172 thereby to have an
interference fit for retaining latch loop 172 therein when in the
stowed position.
[0050] Thus light 100 is configured to give a user the ability to
use or not use latch ring 170 as may be best in that user's view
and circumstance, because latch ring 170 can be positioned so as to
not interfere with the pivoting of light head 200 and/or can be
positioned to latch or to release light head 200 for pivoting
relative to its stowed or seated position.
[0051] FIGS. 6A and 6B are front and rear perspective views,
respectively, of the example light head 200 apart from the example
portable light 100; and FIG. 7 is an exploded view of the example
light head 200. Light head 200 includes the light source 220 of
light 100. Head housing 210 of light head 200 includes a forward
housing part 230 that has plural openings 232 that correspond in
shape and location with light sources 220 and a rearward housing
part 340 that preferably has a plurality of slots or other openings
242 for facilitating cooling of a heat sink 300 contained within
housing 210. A feature 217 at one end of head housing 210, e.g.,
the top end thereof, is provided as part of a latch arrangement 170
therefor described herein and another feature 320, 322 at the
opposite end thereof, e.g., at the bottom end thereof, is provided
as part of a pivotable mounting for light head 200, also described
herein.
[0052] In one typical example embodiment, light head 200 includes
plural, e.g., three, LED light sources 220 arranged in a triangular
array at the exposed forward face thereof. Each light source 220
includes an LED 224 seated at or near the base or narrow end of a
reflective element 222. The plural light sources 220 may be
energized together, or one at a time, or in combinations, and may
produce white light and/or colored light, as may be desired.
Typically, the plural LEDs 224 may be supported on a common
substrate 330, e.g., a common circuit board 330, or on separate
substrates 330. Reflective element 222 may be have a shaped
reflective surface 222 or may be a solid optically clear element
222 such as a totally internally reflective (TIR) optical element
222.
[0053] One typical reflective element 222 includes a curved
reflective surface 222 having a rearward narrower end at which a
light emitting element 224, e.g., an LED 224, is disposed, e.g., on
a substrate 330, and having a relatively wider open end from which
light from emitting element 222 exits, either coming directly from
LED 224 or indirectly via reflective surface 222. The surface of
reflector 222 may be generally parabolic in shape or may have any
other suitable, typically curved, shape as may be desired to
produce a beam of light having desired characteristics, e.g., a
spot beam or a flood beam, or something in between.
[0054] An optically clear lens 226 typically covers the wider open
ends of reflective elements 222, e.g., a single lens 226 may be
provided that has a relatively large substantially flat portion
covers all three light sources 220 (as illustrated) or separate
lenses 226 may be provided, e.g., one for each light source 220.
Typically lens 226 has a somewhat triangular shape with rounded
angles so as to cover the triangular array of light sources 220
with sides 226S that generally follow the shape of the periphery of
forward housing 230 so as to be retained between front and rear
housing 230, 240 when they are assembled and fastened by fasteners
210F.
[0055] Alternatively, each separate lens 226 may have a generally
circular shape similar to the open end of reflector 222 and seats
in a circular opening 232 in front housing part 230. In either
configuration, and typically, front and rear housing parts 230, 240
and lens 226 are sealed relative to each other by a seal 210S to
reduce entry of moisture, debris and other undesirable
substances.
[0056] Electrical substrate 330 that supports and provides
electrical connections to LEDs 224 mounted thereon is supported by
a thermally conductive heat sink 300 and is separated therefrom by
an electrical insulator 340. Substrate 330 may be attached to heat
sink 300 by plural fasteners 330F, e.g., screw type fasteners 330F,
with insulator 340 interposed between substrate 330 and heat sink
300, and the interfaces therebetween may have a thermal grease or
other thermally conductive material for reducing the thermal
resistance therebetween to facilitate conducting heat away from
LEDs 224.
[0057] Preferably, heat sink 300 has a concave forward side into
which substrates 330, 340 are disposed and has a convex rearward
side on which are a plurality of raised flanges 310 or similar
features 310 that increase the surface area of heat sink 300,
thereby to reduce its thermal resistance and the operating
temperature of LEDs 224. Preferably heat sink 300 is formed
integrally of a thermally conductive material, such as a thermally
filled nylon or other plastic or as a cast, formed or machined
aluminum heat sink 300.
[0058] Heat sink 300 also has a pair of outwardly extending
substantially coaxial and cylindrical projections 320 at the lower
end thereof for cooperating with a pair of corresponding
receptacles 152 of base 120 of light housing 110, for providing a
pivotable joint between light head 200 and light housing 110. One
or both cylindrical projections 320 may have a plurality of teeth
322 or other projections and/or recesses for providing a detent for
the pivoting of light head 200, whereby head 200 tends to remain in
position at certain pivot angles when manually moved to such
positions. Each of front and rear housings 230, 240 has a
substantially semicircular recess 234, 244 through which
cylindrical projections 320 extend.
[0059] Electrical power is provided to LEDs 224 on substrate 330
via contacts 334 at the ends of one or more electrical conductors
332 that pass through central openings through one or both pivot
projections 320 for conducting electrical power from battery 190
via switch 160 and any control circuitry that may be provided.
Control circuitry is provided for operating light sources 220 and
for charging battery 190. A circuit thereof for providing the
desired level of current flowing in each of the LEDs 224 is
preferably provided on substrate 330, and may include one or more
DC converters, one or more current regulators, a processor or
controller such as a micro-processor, and the like. A circuit
thereof for providing the desired level of charging current flowing
to battery 190 in housing 110 is preferably provided on a substrate
located in the lower part of housing 110 and may include a DC
converter, a voltage limiting circuit, a current limiter and/or
regulator, a processor or controller such as a micro-processor, and
the like.
[0060] FIG. 8 is a perspective view of the example embodiment of
the charging device 400, and FIGS. 8A and 8B are plan views of the
charging device 400 with latch arms 420 thereof in retracted and
extended positions, respectively; FIG. 9A is an exploded view of
the example charging device 400 with a charger housing 410 thereof
spaced apart from a bottom cover 450 thereof, FIG. 9B is a
partially exploded perspective view of the charger housing 410, and
FIG. 9C is a perspective view of the example charger housing 410
showing the interior arrangement thereof; and FIG. 10 is an
exploded view of the example charging device 400 shown in FIGS. 8
through 9C.
[0061] Charger device 400 housing 410 has sidewalls 432 and end
wall 434 that define a receptacle 430 into which the base 120 of
light 100 can be placed for charging and recharging batteries 190
thereof. A pair of electrical contacts 460 located on end wall 434
of receptacle 430 are positioned so as to come into electrical
contact with a corresponding pair of electrical contacts 192
(covered in a FIG. 3B) on the rearward end 124 of base 120 of light
housing 110 of light 100 to carry charging current to light 100,
e.g., to power source 190 thereof. Typically a biasing spring 462
is provided to move each charging contact 460 outwardly, i.e.
towards the base 120 of a light 100 in receptacle 430, thereby to
maintain contact and contact pressure against electrical contacts
192 of light 100.
[0062] Charging device 400 receives electrical power for charging
light 100 via an electrical connector 470 located in connector
housing 456 of bottom cover 450, and electrical power is conducted
from connector 470 to electrical contacts via electrical wires 472,
thereby to complete the charging circuit. Charging power from an
external source, e.g., a vehicle electrical system, and DC power
source, and/or an AC/DC power pack or converter, or any other
suitable electrical power source.
[0063] Release actuator 440 is in one example embodiment an
L-shaped member having an actuator portion 440A at or near the end
of the shorter leg of the "L" and a pivot axle 446 at or near the
end of the longer leg of the "L." Pivot axle 446 provides a pivot
about an axis that is parallel to the bottom of receptacle 430 and
is transverse to charger housing 410. Latch member 442 is located
on the longer leg of the "L" intermediate pivot axle 446 and the
junction of the longer and shorter legs of the L-shaped member 440.
It is noted that release actuator 440 could be configured in
different shapes than an "L" and/or for translational motion or for
any other motion that will allow latch member 442 to move in
response to movement of actuator portion 440A.
[0064] A latch member 442 that is part of release actuator 440
movably extends into receptacle 430 on the floor thereof. Release
actuator 440 is pivotably mounted with its pivot axle 446 seated in
release actuator pivot seat 454 of charger bottom cover 450 on axle
446 and is biased upwardly by release actuator bias member 444,
e.g., release actuator bias spring 444, so that latch member 442 is
moved upwardly into the space of receptacle thereby to latch with a
corresponding latching recess 126 in the base 120 of light 100. The
ends of release actuator spring 444 are positioned by respective
spring seats, e.g., by release actuator spring seat 452 on charger
cover 450 and a corresponding seat 448 on the underside of release
actuator 440.
[0065] Latch member 442 retracts when light 100 is being inserted
into receptacle 430 because the base 120 of light 100 bears against
latch member 442 causing it to pivot downwardly to allow base 120
to pass and become fully seated in receptacle 430 whereat latch
member 442 moves upwardly into latching recess 126 of base 120 of
light 100, thereby to retain light 100 in receptacle 430. Latch
member 442 moves downwardly when release actuator 440 is pushed or
pressed downwardly, e.g., at its actuator end 440A which is exposed
at the rear (or bottom) of charging device 400, thereby to be
removed from latching recess 126 to release the base 120 of light
100 for removal from charging device 400.
[0066] A pair of opposing latch arms 420 are pivotably mounted on
housing 410 at pivot 424 and are pivotable thereon as indicated by
the double ended arrows in FIGS. 8A and 8B. Each latch arm 420 has
an inwardly extending flange 422 configured to grasp or otherwise
engage a shoulder of base 120 of light 100 when light 100 is in
receptacle 430 and latch arms 420 are pivoted to their respective
inward positions. When latch arms 420 are pivoted outwardly flanges
422 thereof are separated by a distance sufficient to allow base
120 of light 100 to pass therebetween. Latch arms 420 pivot about
respective axes that are substantially perpendicular to the bottom
of receptacle 430 and parallel to the side walls 432 thereof,
whereby the ends 422 of latch arms 420 are pivotable to move into
and out of the receptacle 430 of charging device 400 for
facilitating the placement of light 100, e.g., the base 120
thereof, therein and the removal of light 100 therefrom.
[0067] A latch arm biasing member 426, e.g., a latch arm spring
426, is configured to bias latch arms 420 and flanges 422 thereof
inwardly, i.e. to move towards each other for engaging the base 120
of light 100 when light 100 is seated in receptacle 430 of charging
device 400. Spring 426 is in compression between parts of both
latch arms 420 that are on the side of pivots 424 opposite the
flanges 422 thereof thereby to bias latch arms 420 and flanges 422
thereof to move inwardly. Latch arms 420 are moved outwardly by
applying a force sufficient to overcome the inward bias imparted by
spring 426, e.g., by the base 120 of light 100 being pressed or
pushed into receptacle 430 of charging device 400.
[0068] In one typical embodiment, when latch arms 420 are moved
inwardly under the bias of spring 426, the respective ends of
inwardly extending flanges 422 of lath arms 420 are each at an
angle of about 35.degree. with respect to the longitudinal axis of
charging device 400 (e.g., defining a total angle of about
70.degree. between the flanges 422). When latch arms 420 are moved
outwardly by overcoming the bias of spring 426, the respective ends
of inwardly extending flanges 422 of latch arms 420 are each at an
angle of about 45.degree. with respect to the longitudinal axis of
charging device 400 (e.g., defining a total angle of about
90.degree. between the flanges 422).
[0069] To facilitate the base 120 of light 100 being snapped into
receptacle 430, it is preferred that the inwardly extending flanges
422 of pivoted latch arms 420 have a triangular shape and are
formed, shaped or sloped to have a shaped surface 422C, e.g., with
a chamfer or a bevel 422C, at a suitable angle, e.g., about
45.degree., on their outer surfaces so that force applied thereto
by the base 120 of light 100 when it is being moved downward when
being inserted into receptacle 430 produces an outwardly directed
force on latch arms 420, thereby to facilitate their pivoting
outwardly to allow base 120 to enter receptacle 430. Also
preferably, the side edges of base 120 are also shaped or sloped so
as to provide a complementary force transfer to latch arms 420 and
to urge them to pivot in an outward direction.
[0070] Bottom cover 450 fits into the bottom of charger housing 410
and may be fastened into charger housing 410 by any suitable
fastener. In one embodiment, charger housing 410 has a plurality of
snap-together fastener posts 418 that align with and enter into
corresponding fastener receptacles 458 of bottom cover 450 when
bottom cover 450 is inserted into the bottom of charger housing 410
and snap securely together therein. Fastener posts 418 preferably
have opposing flexible hooks that are compressed inwardly when a
fastener post 418 enters into a fastener receptacle 458 and which
snap outwardly when fastener post 418 is fully seated in a
receptacle 458, thereby to snap together in a secure manner. Some
or all fastener posts 418 have or may have an opening therethrough
through which a screw or other fastener may be inserted for
mounting charging device 400 to a surface, e.g., a wall, a frame, a
vehicle or another support.
[0071] Corresponding seats and other features of charging housing
410 and of bottom cover 450 serve to retain various parts of
charging device 400, e.g., latch arms 420 and release actuator 440
and their respective springs, as well as connector 470, in their
predetermined positions within charging device 400.
[0072] Bottom cover 450 may be formed to provide one or more
channels 476 on the exposed or external surface thereof for the
convenient routing of wires from the external electrical power
source that connects to electrical connector 470 of charging device
400 to provide charging current for charging and recharging the
electrical power source 190 of light 100 via charging device 400.
In the illustrated example, a longer channel 476 extends over
almost the entire length of bottom cover 450 connecting with
shorter channels from side openings 476S and end opening 476E so
that wires may be routed in channels 476 from those openings 476S,
476E to connector housing 456 whereat an electrical connector of
the external charger mates with electrical connector 470 of
charging device 400.
[0073] In a typical embodiment, light housings 110, 120, head
housing 210, 230, 240, charger housing 410 and bottom cover 450, as
well as latch arms 420, actuator 440 and like parts may be formed
of a reinforced nylon, engineered nylon, acrylonitrile butadiene
styrene (ABS), polycarbonate, or other suitable plastic material,
and heat sink 300 may be of a thermally conductive reinforced
nylon, engineered nylon, acrylonitrile butadiene styrene (ABS),
polycarbonate, or other suitable thermally conductive plastic
material, e.g., a plastic that includes (is filled with) thermally
conductive particles, flakes, strands or other thermally conductive
material, or of a metal such as aluminum, brass and the like, or
another suitable thermally conductive material. D-rings 140, latch
loop 170 and the like are typically formed from steel wire or
rod.
[0074] Therein, one typical light 100 is about 7.5 inches (about
19.1 cm) long, about 4.3 inches (about 10.9 cm) wide and about 6.3
inches (about 16 cm) high and weighs about 39.7 ounces (about 1.1
kg). An associated typical charging device is about 8.7 inches
(about 22.1 cm) long, about 4.5 inches (about 11.4 cm) wide and
about 2.6 inches (about 6.6 cm) high and weighs about 9.2 ounces
(about 0.26 kg).
[0075] A portable light 100 may comprise: a light body having a
handle and a base for receiving a source of electrical power; a
light head pivotably mounted at a base end thereof to a forward end
of the light body and having a projection at an end distal the base
end thereof, the light head may include a light source energizable
for producing light; a switch supported by the light body and
actuatable for energizing the light source; and a latch ring
pivotably mounted at the forward end of the light body and
configured for being pivoted to engage the projection of the light
head when the light head is pivoted to be adjacent to the forward
end of the light body, the latch ring being pivotable to a first
position whereat it does not engage the projection of the light
head, whereby the light head is not constrained by the latch ring,
and being pivotable to a second position whereat it engages the
projection of the light head when the light head is pivoted to be
adjacent the forward end of the light body. The light body may have
at its forward end a slot or a recess or a slot and a recess,
wherein the slot and/or recess are configured to receive the latch
ring therein when the latch ring is pivoted to the first position.
The slot and/or recess may be configured to have an interference
fit with the latch ring thereby to retain the latch ring in the
first position. The latch ring may be pivotable to a third position
whereat it is stowed in a further recess of the light body. The
further recess may be configured to have an interference fit with
the latch ring thereby to retain the latch ring in the third
position. The latch ring may have an end ring at each of opposing
ends thereof, wherein the pivotable mounting of the latch ring
includes a pivot pin that passes through the end rings of the latch
ring and through an opening in the light body. The portable light
may include a D-ring having an end ring at opposing ends thereof,
wherein the pivot pin passes through the end rings of the D-ring,
whereby the latch ring and the D-ring are independently pivotable
on the pivot pin. The light body may have a base configured for the
light being placed on a surface, wherein the light head is
pivotably mounted with its base end pivoted at a forward end of the
base of the light body, and wherein the latch ring is pivotably
mounted on the forward end of the light body at a location distal
the base of the light body whereat the latch ring is pivotable to
engage the projection of the light head.
[0076] A charging device 400 for a portable light having a light
body containing a rechargeable battery, the light body of the
portable light having opposing sides and a latching recess of a
predetermined shape in a base thereof, and having one or more
charging contacts for receiving electrical power for charging the
rechargeable battery, the charging device may comprise: a charger
housing having a receptacle configured to receive the light body of
the portable light and having one or more charging contacts
configured to make electrical connection to the one or more
charging contacts of the portable light when the portable light is
disposed in the receptacle of the charger housing; a release latch
moveably mounted to the charger housing and having a projection,
wherein when the release latch is moved to a first position the
projection of the release latch extends into the receptacle of the
charger housing for engaging the portable light when the portable
light is disposed in the receptacle of the charging device, whereby
the portable light is retained in the charging device, and wherein
when the release latch is moved to a second position the projection
of the release latch does not extend into the receptacle of the
charger housing and does not engage the portable light when the
portable light is disposed in the receptacle of the charging
device, whereby the portable light is released to be removed from
the receptacle of the charging device; a first biasing element
configured to bias the release latch towards the first position,
whereby the release latch is biased to move to retain the portable
light in the charging device; a pair of latch arms each moveably
mounted on the charger housing in opposing positions at opposite
sides of the receptacle thereof, the latch arms being moveable to
move closer together to extend into the receptacle and to move
farther apart to be out of the receptacle, wherein each latch arm
has a distal end configured to engage the light body of the
portable light when the portable light is disposed in the
receptacle of the charging device and the latch arms are moved to
be closer together and to not engage the light body of the portable
light when the portable light is disposed in the receptacle of the
charging device and the latch arms are moved to be farther apart;
and a second biasing element configured to bias the latch arms
towards each other, whereby the latch arms are biased to move into
the receptacle to retain the portable light in the charging device.
The projection of the release latch may have a shape complementary
to the latching recess of predetermined shape on the base of the
portable light, wherein when the release latch is moved to the
first position the projection of the release latch engages the
latching recess of the portable light when the portable light is
disposed in the receptacle of the charging device, and wherein when
the release latch is moved to the second position the projection of
the release latch does not extend into the receptacle of the
charger housing and does not engage the latching recess of the
portable light when the portable light is disposed in the
receptacle of the charging device. The release latch may be
pivotably mounted to move into and out of the receptacle of the
charging device. The distal end of each latch arm may include an
inwardly directed flange configured to engage the light body of the
portable light when the portable light is disposed in the
receptacle of the charging device. The inwardly directed flange of
each latch arm may be: triangular in shape; or chamfered or
beveled; or triangular in shape and chamfered or beveled, wherein
the latch arms are movable outwardly by the light being inserted
into the receptacle of the charging device or by the light being
removed from the receptacle of the charging device, whereby the
portable light is insertable into and is removable from the
charging device in a snap-in, snap-out manner. The respective
flanges of each of the latch arms engage a respective shoulder on
the side of the light body of the portable light.
[0077] A portable light and charging device therefor, wherein the
portable light may comprise: a light body having a handle and a
base for receiving a source of electrical power, having a latching
recess in the base thereof, and having one or more charging
contacts configured to make electrical connection to the source of
electrical power; a light head pivotably mounted at a base end
thereof to a forward end of the light body and having a projection
at an end distal the base end thereof, the light head may include a
light source energizable for producing light; a switch supported by
the light body and actuatable for energizing the light source; and
a latch ring pivotably mounted at the forward end of the light body
and configured for being pivoted to engage the projection of the
light head when the light head is pivoted to be adjacent to the
forward end of the light body, the latch ring being pivotable to a
first position whereat it does not engage the projection of the
light head, whereby the light head is not constrained by the latch
ring, and being pivotable to a second position whereat it engages
the projection of the light head when the light head is pivoted to
be adjacent the forward end of the light body; and wherein the
charging device may comprise: a charger housing having a receptacle
configured to receive the light body of the portable light and
having one or more charging contacts configured to make electrical
connection to the one or more charging contacts of the portable
light when the portable light is disposed in the receptacle of the
charger housing; a release latch moveably mounted to the charger
housing and having a projection, wherein when the release latch is
moved to a first position the projection of the release latch
extends into the receptacle of the charger housing for engaging the
portable light when the portable light is disposed in the
receptacle of the charging device, whereby the portable light is
retained in the charging device, and wherein when the release latch
is moved to a second position the projection of the release latch
does not extend into the receptacle of the charger housing and does
not engage the portable light when the portable light is disposed
in the receptacle of the charging device, whereby the portable
light is released to be removed from the receptacle of the charging
device; a first biasing element configured to bias the release
latch towards the first position, whereby the release latch is
biased to move to retain the portable light in the charging device;
a pair of latch arms each moveably mounted on the charger housing
in opposing positions at opposite sides of the receptacle thereof,
the latch arms being moveable to move closer together to extend
into the receptacle and to move farther apart to be out of the
receptacle, wherein each latch arm has a distal end configured to
engage the light body of the portable light when the portable light
is disposed in the receptacle of the charging device and the latch
arms are moved to be closer together and to not engage the light
body of the portable light when the portable light is disposed in
the receptacle of the charging device and the latch arms are moved
to be farther apart; and a second biasing element configured to
bias the latch arms towards each other, whereby the latch arms are
biased to move into the receptacle to retain the portable light in
the charging device. The light body may have at its forward end a
slot or a recess or a slot and a recess, wherein the slot and/or
recess are configured to receive the latch ring therein when the
latch ring is pivoted to the first position. The slot and/or recess
may be configured to have an interference fit with the latch ring
thereby to retain the latch ring in the first position. The latch
ring may be pivotable to a third position whereat it is stowed in a
further recess of the light body. The further recess may be
configured to have an interference fit with the latch ring thereby
to retain the latch ring in the third position. The latch ring may
have an end ring at each of opposing ends thereof, and wherein the
pivotable mounting of the latch ring may include a pivot pin that
passes through the end rings of the latch ring and through an
opening in the light body. The portable light may include a D-ring
having an end ring at opposing ends thereof, wherein the pivot pin
passes through the end rings of the D-ring, whereby the latch ring
and the D-ring are independently pivotable on the pivot pin. The
light body may have a base configured for the light being placed on
a surface, wherein the light head is pivotably mounted with its
base end pivoted at a forward end of the base of the light body,
and wherein the latch ring is pivotably mounted on the forward end
of the light body at a location distal the base of the light body
whereat the latch ring is pivotable to engage the projection of the
light head. The projection of the release latch may have a shape
complementary to the latching recess of predetermined shape on the
base of the portable light, wherein when the release latch is moved
to the first position the projection of the release latch engages
the latching recess of the portable light when the portable light
is disposed in the receptacle of the charging device, and wherein
when the release latch is moved to the second position the
projection of the release latch does not extend into the receptacle
of the charger housing and does not engage the latching recess of
the portable light when the portable light is disposed in the
receptacle of the charging device. The release latch may be
pivotably mounted to move into and out of the receptacle of the
charging device. The distal end of each latch arm may include an
inwardly directed flange configured to engage the light body of the
portable light when the portable light is disposed in the
receptacle of the charging device. The inwardly directed flange of
each latch arm may be: triangular in shape; or chamfered or
beveled; or triangular in shape and chamfered or beveled, wherein
the latch arms are movable outwardly by the light being inserted
into the receptacle of the charging device or by the light being
removed from the receptacle of the charging device, whereby the
portable light is insertable into and is removable from the
charging device in a snap-in, snap-out manner. The respective
flanges of each of the latch arms may engage a respective shoulder
on the side of the light body of the portable light.
[0078] As used herein, the term "about" means that dimensions,
sizes, formulations, parameters, shapes and other quantities and
characteristics are not and need not be exact, but may be
approximate and/or larger or smaller, as desired, reflecting
tolerances, conversion factors, rounding off, measurement error and
the like, and other factors known to those of skill in the art. In
general, a dimension, size, formulation, parameter, shape or other
quantity or characteristic is "about" or "approximate"whether or
not expressly stated to be such. It is noted that embodiments of
very different sizes, shapes and dimensions may employ the
described arrangements.
[0079] Although terms such as "front," "back," "rear," "side,"
"end," "top," "bottom," "up," "down," "left," "right," "upward,"
"downward," "forward," "backward," "under" and/or "over,"
"vertical," "horizontal," and the like may be used herein as a
convenience in describing one or more embodiments and/or uses of
the present arrangement, the articles described may be positioned
in any desired orientation and/or may be utilized in any desired
position and/or orientation. Such terms of position and/or
orientation should be understood as being for convenience only, and
not as limiting of the invention as claimed.
[0080] As used herein, the term "and/or" encompasses both the
conjunctive and the disjunctive cases, so that a phrase in the form
"A and/or B" encompasses "A" or "B" or "A and B." In addition, the
term "at least one of" one or more elements is intended to include
one of any one of the elements, more than one of any of the
elements, and two or more of the elements up to and including all
of the elements, and so, e.g., the phrase in the form "at least one
of A, B and C" includes "A," "B," "C," "A and B," "A and C," "B and
C," and "A and B and C."
[0081] A fastener as used herein may include any fastener or other
fastening device that may be suitable for the described use,
including threaded fasteners, e.g., bolts, screws and driven
fasteners, as well as pins, rivets, nails, spikes, barbed
fasteners, clips, clamps, nuts, speed nuts, cap nuts, acorn nuts,
and the like. Where it is apparent that a fastener would be
removable in the usual use of the example embodiment described
herein, then removable fasteners would be preferred in such
instances. A fastener may also include, where appropriate, other
forms of fastening such as a formed head, e.g., a peened or heat
formed head, a weld, e.g., a heat weld or ultrasonic weld, a braze,
and adhesive, and the like.
[0082] As used herein, the terms "connected" and "coupled" as well
as variations thereof are not intended to be exact synonyms, but to
encompass some similar things and some different things. The term
"connected" may be used generally to refer to elements that have a
direct electrical and/or physical contact to each other, whereas
the term "coupled" may be used generally to refer to elements that
have an indirect electrical and/or physical contact with each
other, e.g., via one or more intermediate elements, so as to
cooperate and/or interact with each other, and may include elements
in direct contact as well.
[0083] The term battery is used herein to refer to an
electro-chemical device comprising one or more electro-chemical
cells and/or fuel cells, and so a battery may include a single cell
or plural cells, whether as individual units or as a packaged unit.
A battery is one example of a type of an electrical power source
suitable for a portable or other device. Such devices could include
power sources including, but not limited to, fuel cells, super
capacitors, solar cells, and the like. Any of the foregoing may be
intended for a single use or for being rechargeable or for
both.
[0084] Various embodiments of a battery may have one or more
battery cells, e.g., one, two, three, four, or five or more battery
cells, as may be deemed suitable for any particular device. A
battery may employ various types and kinds of battery chemistry
types, e.g., a carbon-zinc, alkaline, lead acid, nickel-cadmium
(Ni--Cd), nickel-metal-hydride (NiMH) or lithium-ion (Li-Ion)
battery type, of a suitable number of cells and cell capacity for
providing a desired operating time and/or lifetime for a particular
device, and may be intended for a single use or for being
rechargeable or for both. Examples may include a three or six cell
lead acid battery typically producing about 6 volts or about 12
volts, a three cell Ni--Cd battery typically producing about 3.6
volts, a four cell NiMH battery typically producing about 4.8
volts, a five cell NiMH battery producing about 6 volts, a Li-Ion
battery typically producing about 3.5 volts, or a two-cell Li-Ion
battery typically producing about 7 volts, it being noted that the
voltages produced thereby will be higher when approaching full
charge and will be lower in discharge, particularly when providing
higher current and when reaching a low level of charge, e.g.,
becoming discharged.
[0085] The term DC converter is used herein to refer to any
electronic circuit that receives at an input electrical power at
one voltage and current level and provides at an output DC
electrical power at a different voltage and/or current level.
Examples may include a DC-DC converter, an AC-DC converter, a boost
converter, a buck converter, a buck-boost converter, a single-ended
primary-inductor converter (SEPIC), a series regulating element, a
current level regulator, and the like. The input and output thereof
may be DC coupled and/or AC coupled, e.g., as by a transformer
and/or capacitor. A DC converter may or may not include circuitry
for regulating a voltage and/or a current level, e.g., at an output
thereof, and may have one or more outputs providing electrical
power at different voltage and/or current levels and/or in
different forms, e.g., AC or DC.
[0086] While the present invention has been described in terms of
the foregoing example embodiments, variations within the scope and
spirit of the present invention as defined by the claims following
will be apparent to those skilled in the art. For example, light
head 200 could be pivotably mounted at its upper end with a latch
engaging a latching loop 170 on light housing 110 located at the
bottom end thereof, whereby light head 200 is pivotable upward
relative to light housing 110 rather than downward as in the
illustrated example.
[0087] By was of further example, light head 200 could be pivoted
about an intermediate location or axis thereon, e.g., so as to be
pivotable upwardly, downwardly, or both upwardly and downwardly,
relative to light housing 110. In any arrangement, a latching loop
172 and complementary latch feature 217 are provided in suitable
locations for latching and releasing light head 200 relative to
light housing 110 or portable light 100.
[0088] The corresponding electrical contacts 192, 460 of light 100
and charging device 400 may be located on the end of base 120 as
illustrated or may be located on one or both of the sides thereof,
as may be convenient.
[0089] While the illustrated embodiment of light 100 has
substantially coaxial and cylindrical projections 320 that extend
outwardly from the heat sink 300 of light head 200 and into
corresponding substantially coaxial and cylindrical receptacles 152
at the inner sides of the forward ends 122 of base 120, the coaxial
and cylindrical projections can extend inwardly from the forward
ends 122 of base 120 into the space therebetween and the
corresponding coaxial and cylindrical receptacles can be on light
head 200, e.g., in heat sink 300 thereof, where they respectively
receive the projections extending from ends 122 of base 120.
[0090] While latch arms 420 are illustrated as being pivotable on a
pivot 424 about an axis that is substantially parallel to the
sidewall 432 of receptacle 430 and that is substantially
perpendicular to the base surface of receptacle 430 between walls
432, 434 thereof, they can be pivoted about any suitable axis that
provides suitable movement of the flanges 422 thereof for admitting
light 100 into charger 400 and for releasing light 100 therefrom,
substantially as described.
[0091] While certain features may be described as a raised feature,
e.g., a ridge, boss, flange, projection or other raised feature,
such feature may be positively formed or may be what remains after
a recessed feature, e.g., a groove, slot, hole, indentation, recess
or other recessed feature, is made. Similarly, while certain
features may be described as a recessed feature, e.g., a groove,
slot, hole, indentation, recess or other recessed feature, such
feature may be positively formed or may be what remains after a
raised feature, e.g., a ridge, boss, flange, projection or other
raised feature, is made.
[0092] Each of the U.S. Provisional Applications, U.S. Patent
Applications, and/or U.S. Patents, identified herein is hereby
incorporated herein by reference in its entirety, for any purpose
and for all purposes irrespective of how it may be referred to or
described herein.
[0093] Finally, numerical values stated are typical or example
values, are not limiting values, and do not preclude substantially
larger and/or substantially smaller values. Values in any given
embodiment may be substantially larger and/or may be substantially
smaller than the example or typical values stated.
* * * * *