U.S. patent application number 15/546533 was filed with the patent office on 2018-01-04 for desk with vertically moving top plate.
This patent application is currently assigned to OKAMURA CORPORATION. The applicant listed for this patent is OKAMURA CORPORATION. Invention is credited to Takayuki SAKIMOTO, Takayuki YAMAMOTO.
Application Number | 20180000240 15/546533 |
Document ID | / |
Family ID | 56543343 |
Filed Date | 2018-01-04 |
United States Patent
Application |
20180000240 |
Kind Code |
A1 |
YAMAMOTO; Takayuki ; et
al. |
January 4, 2018 |
DESK WITH VERTICALLY MOVING TOP PLATE
Abstract
Provided is a desk (1) with a vertically moving top plate having
a top plate (4), leg bodies (leg parts) (2) disposed on a floor
surface and configured to support the top plate (4) to raise and
lower such that it is able to be raised and lowered, and a raising
and lowering mechanism unit (a raising and lowering mechanism) (5)
configured to raise and lower the top plate (4), wherein a concave
section (469) opening downward is formed in the top plate (4), and
the concave section (469) is formed to accommodate a socket portion
(11a) of a power source tap (11).
Inventors: |
YAMAMOTO; Takayuki;
(Yokohama-shi, Kanagawa, JP) ; SAKIMOTO; Takayuki;
(Higashiosaka-shi, Osaka, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
OKAMURA CORPORATION |
Yokohama-shi, Kanagawa |
|
JP |
|
|
Assignee: |
OKAMURA CORPORATION
Yokohama-shi, Kanagawa
JP
|
Family ID: |
56543343 |
Appl. No.: |
15/546533 |
Filed: |
January 26, 2016 |
PCT Filed: |
January 26, 2016 |
PCT NO: |
PCT/JP2016/052112 |
371 Date: |
July 26, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A47B 9/00 20130101; A47B
21/06 20130101; A47B 9/20 20130101; A47B 2200/0082 20130101; A47B
21/02 20130101; A47B 2021/066 20130101 |
International
Class: |
A47B 9/20 20060101
A47B009/20; A47B 21/02 20060101 A47B021/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 28, 2015 |
JP |
2015-014845 |
Claims
1. A desk with a vertically moving top plate having a top plate,
leg parts disposed on a floor surface and configured to support the
top plate to raise and lower such that it is able to be raised and
lowered, and a raising and lowering mechanism configured to raise
and lower the top plate, wherein a concave section opening downward
and configured to accommodate a socket portion of a power source
tap to which an electronic device is able to be connected is formed
in the top plate.
2. The desk with a vertically moving top plate according to claim
1, wherein the socket portion of the power source tap is
magnetically attached on an inner surface of the concave
section.
3. The desk with a vertically moving top plate according to claim
2, wherein the inner surface of the concave section has a bottom
surface section parallel to the floor surface on which the desk
with a vertically moving top plate is disposed, and side surface
sections extending downward from the bottom surface section, and
the socket portion of the power source tap is magnetically attached
on at least one of the bottom surface section and the side surface
section.
4. The desk with a vertically moving top plate according to claim
1, wherein a hole section through which a wiring of an electronic
device passes in an upward/downward direction is formed in the top
plate, and the hole section is disposed at a position overlapping
the concave section when seen in a plan view.
5. The desk with a vertically moving top plate according to claim
2, wherein a hole section through which a wiring of an electronic
device passes in an upward/downward direction is formed in the top
plate, and the hole section is disposed at a position overlapping
the concave section when seen in a plan view.
6. The desk with a vertically moving top plate according to claim
3, wherein a hole section through which a wiring of an electronic
device passes in an upward/downward direction is formed in the top
plate, and the hole section is disposed at a position overlapping
the concave section when seen in a plan view.
7. The desk with a vertically moving top plate according to claim
1, wherein the concave section extends such that at least one end
portion in an extension direction reaches an edge portion of the
top plate, and a wiring portion of the power source tap is
extracted to the outside of the top plate from the edge portion of
the top plate through the concave section.
8. The desk with a vertically moving top plate according to claim
6, wherein the concave section extends such that at least one end
portion in an extension direction reaches an edge portion of the
top plate, and a wiring portion of the power source tap is
extracted to the outside of the top plate from the edge portion of
the top plate through the concave section.
Description
TECHNICAL FIELD
[0001] The present invention relates to a desk with a vertically
moving top plate capable of vertically changing a top plate height
according to a demand of an office worker in a working space such
as an office, a public facility, or the like.
[0002] Priority is claimed on Japanese Patent Application No.
2015-014845, filed Jan. 28, 2015, the content of which is
incorporated herein by reference.
BACKGROUND ART
[0003] In a working space such as an office, a public facility, or
the like, in general, desks are arranged to provide working areas
to office workers. In such desks, top plate heights at which work
is facilitated greatly differ according to body type, gender,
preferences, or the like, of office workers. However, since general
desks having fixed top plate heights cannot cope with the
above-mentioned circumstances, in the related art, a desk with a
vertically moving top plate capable of vertically changing a top
plate height is provided (for example, see Patent Document 1 to
Patent Document 5).
[0004] When such a desk with a vertically moving top plate is used,
a working area having a top plate height according to a demand of
an office worker can be provided, and a load to a body of the
office worker can be reduced while improving work efficiency.
CITATION LIST
Patent Document
[Patent Document 1]
[0005] Japanese Patent No. 3371959
[Patent Document 2]
[0005] [0006] Japanese Patent No. 3391285
[Patent Document 3]
[0006] [0007] Japanese Registered Utility Model No. 3164739
[Patent Document 4]
[0007] [0008] Japanese Unexamined Patent Application, First
Publication No. 2014-113505
[Patent Document 5]
[0008] [0009] Japanese Unexamined Patent Application, First
Publication No. 2014-140753
SUMMARY OF INVENTION
Technical Problem
[0010] Incidentally, in the case in which a wiring of an electronic
device installed on a top plate of a desk with a vertically moving
top plate is connected to a power supply socket installed on a
floor or a wall of a working space and exposed to a space below the
top plate, when the top plate is raised and lowered, the wiring of
the electronic device below the top plate is deformed or moved
according to the raising and lowering of the top plate.
[0011] For this reason, when wiring of the electronic device is
performed, consideration needs to be given to wiring that is
deformed or moved according to the raising and lowering of the top
plate not being hooked by an article such as a wagon or the like
installed below the top plate. In particular, when a plurality of
electronic devices are installed on the top plate, wiring of these
devices takes time and labor.
[0012] On the other hand, when a socket portion of a power source
tap (OA tap) is attached to a back side of the top plate and the
wiring of an electronic device installed on the top plate of the
desk with a vertically moving top plate is connected to the socket
portion of the power source tap, since hardly any of the wiring of
the electronic device is exposed in the space below the top plate,
in particular, on the floor surface, the wiring of the electronic
device is not deformed or moved according to raising and lowering
of the top plate. However, if the socket portion of the power
source tap protrudes downward from a back surface of the top plate
and the top plate approaches or comes in contact with an article
such as a wagon or the like installed below the top plate when the
top plate is lowered, the socket portion of the power source tap
may be sandwiched between the top plate and the article and damage
the power source tap or the article. In addition, when the socket
portion of the power source tap protrudes downward from a back side
of the top plate, a user may come in contact with the socket
portion of the power source tap.
[0013] Here, the present invention has an object of providing a
desk with a vertically moving top plate capable of preventing a
power source tap installed below a top plate from coming in contact
with an article such as a wagon installed below the top plate or a
user.
Solution to Problem
[0014] In order to achieve the aforementioned objects, a desk with
a vertically moving top plate according to a first aspect of the
present invention is a desk with a vertically moving top plate
having a top plate, leg parts disposed on a floor surface and
configured to support the top plate to raise and lower such that it
is able to be raised and lowered, and a raising and lowering
mechanism configured to raise and lower the top plate, wherein a
concave section opening downward and configured to accommodate a
socket portion of a power source tap to which an electronic device
is able to be connected is formed in the top plate.
[0015] In addition, in the first aspect of the present invention,
since the concave section configured to accommodate the socket
portion of the power source tap is formed in the top plate, a
wiring of the electronic device installed on the top plate can be
connected to the socket portion of the power source tap. Then, as
the socket portion of the power source tap is accommodated in the
concave section, the socket portion of the power source tap can be
prevented from protruding from a lower surface of the top
plate.
[0016] For this reason, even when the top plate approaches or comes
in contact with an article such as a wagon or the like installed
below the top plate when the top plate is lowered, the socket
portion of the power source tap is not sandwiched between the top
plate and the article, and thus, the power source tap or the
article can be prevented from being damaged.
[0017] In addition, since the socket portion of the power source
tap does not protrude from the lower surface of the top plate, it
is possible to prevent a user from coming in contact with the
socket portion of the power source tap.
[0018] Further, the socket portion of the power source tap
represents a portion in which a socket into which a plug of an
electronic device is inserted is installed, and the wiring portion
of the power source tap represents a wiring configured to supply
power to the socket portion.
[0019] In addition, in the desk with a vertically moving top plate
according to a second aspect of the present invention, the socket
portion of the power source tap may be magnetically attached on an
inner surface of the concave section.
[0020] As the above-mentioned configuration is provided, the socket
portion of the power source tap can be easily fixed into the
concave section. In addition, a position of the socket portion of
the power source tap can be easily changed.
[0021] In addition, in the desk with a vertically moving top plate
according to a third aspect of the present invention, the inner
surface of the concave section may have a bottom surface section
parallel to the floor surface on which the desk with a vertically
moving top plate is disposed, and side surface sections extending
downward from the bottom surface section, and the socket portion of
the power source tap may be magnetically attached on at least one
of the bottom surface section and the side surface sections.
[0022] When the socket portion of the power source tap is
magnetically attached on the bottom surface section and when
magnetically attached on the side surface sections, an orientation
of the socket portion of the power source tap is changed. For this
reason, as the socket portion of the power source tap is
magnetically attached on at least one of the bottom surface section
and the side surface sections to match a shape of the concave
section or the socket portion of the power source tap, the socket
portion of the power source tap does not protrude from the concave
section, and the socket portion of the power source tap can be
accommodated in the concave section as a whole.
[0023] In addition, in the desk with a vertically moving top plate
according to a fourth aspect of the present invention, a hole
section through which a wiring of an electronic device passes in an
upward/downward direction may be formed in the top plate, and the
hole section may be disposed at a position overlapping the concave
section when seen in a plan view.
[0024] As the above-mentioned configuration is provided, the wiring
of the electronic device on the top plate can easily reach the
concave section, and simplification of the wiring can be achieved.
For this reason, the wiring of the electronic device can be easily
performed while improving appearance of the wiring of the
electronic device.
[0025] In addition, in the desk with a vertically moving top plate
according to a fifth aspect of the present invention, the concave
section may extend such that at least one end portion in an
extension direction reaches an edge portion of the top plate, and a
wiring portion of the power source tap may be extracted to the
outside of the top plate from the edge portion of the top plate
through the concave section.
[0026] As the above-mentioned configuration is provided, since the
wiring portion of the power source tap does not hang down from the
top plate, the wiring portion of the power source tap can be
prevented from being hooked by an article such as a wagon or the
like installed below the top plate when the top plate is raised and
lowered. In addition, since the wiring portion of the power source
tap does not hang down from the top plate, it is possible to
prevent a user from coming in contact with the wiring portion of
the power source tap.
Advantageous Effects of Invention
[0027] According to the desk with a vertically moving top plate of
the present invention, it is possible to prevent the power source
tap installed below the top plate from coming in contact with an
article such as a wagon or the like installed below the top plate
or a user.
BRIEF DESCRIPTION OF DRAWINGS
[0028] FIG. 1 is a perspective view showing an example of a desk
with a vertically moving top plate according to an embodiment of
the present invention from above.
[0029] FIG. 2 is a perspective view showing the example of the desk
with a vertically moving top plate according to the embodiment of
the present invention from below.
[0030] FIG. 3 is a cross-sectional view taken along line A-A of
FIG. 1.
[0031] FIG. 4 is an enlarged view of a rear side of FIG. 3.
[0032] FIG. 5 is a side cross-sectional view of a top plate of the
desk with a vertically moving top plate according to the embodiment
of the present invention.
[0033] FIG. 6 is a side cross-sectional view of a front end portion
of the top plate of the desk with a vertically moving top plate
according to the embodiment of the present invention.
DESCRIPTION OF EMBODIMENTS
[0034] Hereinafter, a desk with a vertically moving top plate
according to an embodiment of the present invention will be
described with reference to FIGS. 1 to 6.
[0035] Further, in the following description, a lengthwise
direction of a long side of a top plate 4 having a rectangular
shape in a desk 1 with a vertically moving top plate shown in FIGS.
1 and 2 is a leftward/rightward direction, and a lengthwise
direction of a short side of the top plate 4 is a forward/rearward
direction.
[0036] As shown in FIGS. 1 and 2, the desk 1 with a vertically
moving top plate according to the embodiment has a pair of leg
bodies (leg parts) 2 disposed spaced apart from each other at left
and right sides, a connecting member 3 (see FIG. 2) configured to
connect the pair of leg bodies 2, and the top plate 4 having a flat
plate shape, supported on the leg bodies 2 and disposed on the
connecting member 3, and the top plate 4 is configured to be
vertically raised and lowered as raising and lowering mechanism
units 5 are provided on the pair of leg bodies 2.
[0037] In addition, a control unit 6 (see FIG. 2) configured to
control the pair of raising and lowering mechanism units 5 together
as described below is installed on the desk 1 with a vertically
moving top plate, and further, an operation unit 7 (see FIG. 1)
configured to input a raising and lowering operating signal is
installed on the raising and lowering mechanism unit 5.
[0038] Each of the leg bodies 2 is configured to have a lower
section support body 8 (see FIG. 1) disposed on a floor surface, an
upper section support body 9 disposed above the lower section
support body 8 and configured to support a lower surface of the top
plate 4, and the raising and lowering mechanism unit 5 configured
to telescopically connect the lower section support body 8 and the
upper section support body 9.
[0039] Since the lower section support body 8 has a plate shape
extending forward and rearward, as adjusters 81 are installed at
front and rear end portions, a height from the floor surface can be
finely adjusted.
[0040] Since the raising and lowering mechanism unit 5 is
constituted by the known configuration in the related art, as a
plurality of square tubes 51 having different dimensions are
relatively movably fitted to each other, the raising and lowering
mechanism unit 5 is telescopically movable by driving of a drive
mechanism accommodated therein in the upward/downward direction.
Accordingly, the raising and lowering mechanism unit 5
telescopically connects the lower section support body 8 and the
upper section support body 9.
[0041] The upper section support body 9 is disposed to extend in
the forward/rearward direction of the top plate 4 and supports a
lower surface of a side end portion of the top plate 4 in the
leftward/rightward direction. The upper section support body 9 is
integrally fixed to an upper end portion of the raising and
lowering mechanism unit 5 by welding or the like such that a front
end side 9a that is a front side of the top plate 4 with respect to
the raising and lowering mechanism unit 5 is lengthened and a rear
end side 9b that is a rear side of the top plate 4 is
shortened.
[0042] As shown in FIG. 3, the top plate 4 is formed in a
rectangular plate shape, and has a core 41 obtained by processing a
metal plate such as a steel plate or the like, a surface material
42 such as a melamine board or the like configured to cover an
upper surface, side end surfaces in the leftward/rightward
direction and a front end surface of the core 41, and a cover
member 43 configured to cover a rear end portion of the core
41.
[0043] The core 41 has an upper core 45 disposed at an upper side
thereof, and three lower cores 46, 47 and 48 disposed below the
upper core 45.
[0044] The upper core 45 has a horizontal plate section 45a formed
in a rectangular plate shape and having a plate surface that is a
horizontal surface, a front plate section 45b continuous with an
edge portion of a front side of the horizontal plate section 45a,
extending toward the front side in an inclined downward direction,
and having a tip portion side folded rearward, side plate sections
45c continuous with left and right edge portions of the horizontal
plate section 45a and extending downward, a rear plate section 45d
continuous with a rear edge portion of the horizontal plate section
45a and extending downward, and a lower plate section 45e extending
forward from a lower end portion of the rear plate section 45d.
[0045] Then, in the upper core 45, an upper surface of the
horizontal plate section 45a, the front plate section 45b and outer
surfaces of the side plate sections 45c and 45c are covered by the
surface material 42, and an outer surface of the rear plate section
45d is covered by the cover member 43.
[0046] The three lower cores 46, 47 and 48 are disposed at
intervals in the forward/rearward direction. Among the three lower
cores 46, 47 and 48, the core disposed in the rearmost section in
the forward/rearward direction is a first lower core 46, the core
disposed in an intermediate section is a second lower core 47, and
the core disposed in the foremost section is a third lower core
48.
[0047] As shown in FIG. 4, the first lower core 46 is a member
extending in the leftward/rightward direction and formed in a
cross-sectional shape having a concavo-convex portion in the
leftward/rightward direction as a whole. The first lower core 46
has a first vertical plate section 461 disposed in the rearmost
section and having a plate surface that is a vertical surface
directed in the forward/rearward direction, a first horizontal
plate section 462 extending forward from a lower end portion of the
first vertical plate section 461 and having a plate surface that is
a horizontal surface, a second vertical plate section 463 extending
upward from a front end portion of the first horizontal plate
section 462 and having a plate surface that is a vertical surface
directed in the forward/rearward direction, a second horizontal
plate section 464 extending forward from an upper end portion of
the second vertical plate section 463 and having a plate surface
that is a horizontal surface, a third vertical plate section 465
extending downward from a front end portion of the second
horizontal plate section 464 and having a plate surface that is a
vertical surface directed in the forward/rearward direction, a
third horizontal plate section 466 extending forward from a lower
end portion of the third vertical plate section 465 and having a
plate surface that is a horizontal surface, a fourth vertical plate
section 467 extending upward from a front end portion of the third
horizontal plate section 466 having a plate surface that is a
vertical surface directed in the forward/rearward direction, and a
fourth horizontal plate section 468 extending forward from an upper
end portion of the fourth vertical plate section 467 and having a
plate surface that is a horizontal surface.
[0048] The first vertical plate section 461, the second vertical
plate section 463, the third vertical plate section 465 and the
fourth vertical plate section 467 are disposed at substantially the
same height and formed in substantially the same height
dimension.
[0049] Then, the first horizontal plate section 462 and the third
horizontal plate section 466 are disposed at substantially the same
height, and the second horizontal plate section 464 and the fourth
horizontal plate section 468 are disposed at substantially the same
height.
[0050] The first lower core 46 is fixed to the upper core 45 in a
state in which the upper surfaces of the second horizontal plate
section 464 and the fourth horizontal plate section 468 abut the
lower surface of the horizontal plate section 45a of the upper core
45. Then, when the first lower core 46 is fixed to the upper core
45, the rear surface of the first vertical plate section 461 abuts
the front surface of the rear plate section 45d of the upper core
45, and a rear portion of the lower surface of the first horizontal
plate section 462 abuts an upper surface of the lower plate section
45e of the upper core 45.
[0051] Then, a concave section 469 surrounded by the second
vertical plate section 463, the second horizontal plate section 464
and the third vertical plate section 465 and extending in the
leftward/rightward direction to open downward is formed in the
first lower core 46. A socket portion 11a (a portion in which a
socket into which a plug of an electronic device (not shown) is
inserted is installed) of a power source tap 11 configured to
supply power to the electronic device installed on the top plate 4
can be accommodated in the concave section 469.
[0052] In the embodiment, since the first lower core 46 is formed
of a material having a magnetic property such as steel or the like,
when a magnet is installed in the socket portion 11a of the power
source tap 11, the socket portion 11a of the power source tap 11 is
configured to be magnetically attached on the second vertical plate
section 463, the second horizontal plate section 464 and the third
vertical plate section 465 that constitute the concave section 469.
In the embodiment, the lower surface of the second horizontal plate
section 464 corresponds to a bottom surface section of the concave
section 469, and facing surfaces of the second vertical plate
section 463 and the third vertical plate section 465 correspond to
side surface sections of the concave section 469.
[0053] In FIG. 4, the socket portion 11a of the power source tap 11
magnetically attached on the second horizontal plate section 464 is
shown by a solid line, and the socket portion 11a of the power
source tap 11 magnetically attached on the second vertical plate
section 463 and the third vertical plate section 465 is shown by a
dotted line.
[0054] Further, the socket portion 11a of the power source tap 11
accommodated in the concave section 469 is disposed not to protrude
downward from the lower surface of the top plate 4 (the lower
surfaces of the first horizontal plate section 462 and the third
horizontal plate section 466 of the first lower core 46).
[0055] Returning to FIG. 3, the second lower core 47 is a member
extending in the leftward/rightward direction, and formed in a
substantially hat-shaped cross-sectional shape in the
leftward/rightward direction as a whole. The second lower core 47
has a first horizontal plate section 471 disposed in the rearmost
section and having a plate surface that is a horizontal surface, a
first vertical plate section 472 extending downward from a front
end portion of the first horizontal plate section 471 and having a
plate surface that is a vertical surface directed in the
forward/rearward direction, a second horizontal plate section 473
extending forward from a lower end portion of the first vertical
plate section 472 and having a plate surface that is a horizontal
surface, a second vertical plate section 474 extending upward from
a front end portion of the second horizontal plate section 473 and
having a plate surface that is a vertical surface directed in the
forward/rearward direction, and a third horizontal plate section
475 extending forward from an upper end portion of the second
vertical plate section 474 and having a plate surface that is a
horizontal surface.
[0056] The first and second vertical plate sections 472 and 474 are
disposed at substantially the same height and formed in
substantially the same height dimension. Then, the first horizontal
plate section 471 and the third horizontal plate section 475 are
disposed at substantially the same height.
[0057] Then, the second lower core 47 is fixed to the upper core 45
in a state in which upper surfaces of the first horizontal plate
section 471 and the third horizontal plate section 475 abut the
lower surface of the horizontal plate section 45a of the upper core
45.
[0058] The third lower core 48 is formed in substantially the same
shape as the second lower core 47, and has a first horizontal plate
section 471, a first vertical plate section 472, a second
horizontal plate section 473, a second vertical plate section 474
and a third horizontal plate section 475 that are substantially the
same as the first horizontal plate section 481, the first vertical
plate section 482, the second horizontal plate section 483, the
second vertical plate section 484 and the third horizontal plate
section 485 of the second lower core 47.
[0059] Then, the third lower core 48 is fixed to the upper core 45
in a state in which the upper surfaces of the first horizontal
plate section 481 and the third horizontal plate section 485 abut
the lower surface of the horizontal plate section 45a of the upper
core 45.
[0060] Further, the first horizontal plate section 462 and the
third horizontal plate section 466 of the first lower core 46, the
second horizontal plate section 473 of the second lower core 47 and
the second horizontal plate section 483 of the third lower core 48
are disposed at substantially the same height.
[0061] In addition, in the embodiment, wiring insertion holes 49
(hole sections) passing through upper and lower surfaces of the top
plate 4 are formed in both left and right sections of the top plate
4 on the rear side at overlapping positions when seen in a plan
view of the concave section 469 of the top plate 4. In the
embodiment, two wiring insertion holes 49 are formed with an
interval therebetween in the leftward/rightward direction.
[0062] The wiring insertion holes 49 are configured such that a
connecting wiring cable 121 of an electronic device such as a
display or the like placed on the top plate 4 can be guided to the
concave section 469 of the top plate 4. Then, the connecting wiring
cable 121 guided to the concave section 469 can be connected to the
socket portion 11a of the power source tap 11 disposed in the
concave section 469. In the embodiment, the socket portion 11a of
the power source tap 11 is magnetically attached at a position on
the concave section 469 that does not overlap the wiring insertion
hole 49.
[0063] Further, in the embodiment, a wiring portion 11b of the
power source tap 11 is disposed in the concave section 469 and
extends to one end portion in the leftward/rightward direction to
be extracted to the outside of the top plate 4 and is connected to
a power supply socket (not shown) installed in a working space
through the vicinity of the leg bodies 2.
[0064] In addition, as shown in FIG. 1, the operation unit 7 is
installed on a front edge portion of the top plate 4 of the side of
the lower surface. The operation unit 7 has operating buttons
configured to input raising and lowering operating signals to the
raising and lowering mechanism unit 5. Then, a user can drive both
of the raising and lowering mechanism units 5 and change
arbitrarily the height of the top plate 4 by operating the
operation unit 7 and sending a raising and lowering operating
signal.
[0065] As shown in FIG. 2, the connecting member 3 extends in the
leftward/rightward direction, both of end portions thereof are
attached to the pair of upper section support bodies 9 by welding
or the like, and thus, the upper section support bodies 9 of the
pair of leg bodies 2 are connected. The connecting member 3 is
disposed in front of the first lower core 46 of the top plate 4.
Accordingly, the concave section 469 of the top plate 4 opens
downward without overlapping the connecting member 3 in the
upward/downward direction.
[0066] In addition, a space section 31 opening downward is formed
in the connecting member 3, and the control unit 6 is fixed to and
accommodated in the space section 31 by a fastening screw or the
like.
[0067] The control unit 6 is configured to control both of
elevating operations of the raising and lowering mechanism units 5
installed on the pair of leg bodies 2, and in the embodiment, is
connected to the socket portion 11a of the power source tap 11
disposed in the concave section 469 of the top plate 4 to be
operated when electric power is supplied therefrom.
[0068] A unit-connecting wiring cable (not shown) configured to
connect the control unit 6 and the pair of raising and lowering
mechanism units 5 is connected to the control unit 6 separately
from a power supply cable 61, and further, a wiring cable (not
shown) for an operation unit of the operation unit 7 is also
connected thereto.
[0069] The control unit 6 changes a height of the top plate 4 by
controlling an elevating operation of the raising and lowering
mechanism unit 5 on the basis of the received signal when the
control unit 6 receives a raising and lowering operating signal of
the raising and lowering mechanism unit 5 from the operation unit 7
while sending electric power supplied via the power source tap 11
to the raising and lowering mechanism unit 5. Further, the
unit-connecting wiring cable, the wiring cable of an operation
unit, or the like, is routed in the space section 31.
[0070] A cover member 32 configured to cover the space section 31
and having an upper surface on which a wiring can be placed is
attached to the connecting member 3 on the side of the lower
surface. The cover member 32 is formed by folding a metal plate,
and a lengthwise dimension thereof in the forward/rearward
direction is larger than a lengthwise dimension of the connecting
member 3 in the forward/rearward direction. Then, when the cover
member 32 is attached to the connecting member 3 on the side of the
lower surface, the cover member 32 extends in any one of forward
and rearward directions of the connecting member 3. In the
embodiment, the cover member 32 extends toward a rear side of the
connecting member 3. Further, the cover member 32 may extend toward
a front side of the connecting member 3 or may extend toward both
of the front and rear sides.
[0071] In addition, in the embodiment, an electronic device placing
section 33 is hung from the lower surface of the top plate 4. The
electronic device placing section 33 is formed in a tubular shape
passing in the forward/rearward direction. Accordingly, the wiring
of the electronic device installed in the electronic device placing
section 33 extracted from the rear side of the electronic device
placing section 33 can be connected to the socket portion 11a of
the power source tap 11 accommodated in the concave section 469 of
the top plate 4, and the wiring extracted from above the top plate
4 to below the top plate 4 through the wiring insertion hole 49 can
be connected to the electronic device installed in the electronic
device placing section 33.
[0072] Further, in the embodiment, the desk 1 with a vertically
moving top plate may have a configuration as shown in FIGS. 5 and
6.
[0073] FIG. 5 is a side cross-sectional view of the top plate of
the desk with a vertically moving top plate. FIG. 6 is a side
cross-sectional view of a front end portion of the top plate of the
desk with a vertically moving top plate.
[0074] As shown in FIGS. 1 and 5, the top plate 4 includes a top
surface (a work surface) 4t that forms a horizontal work surface on
an upper surface thereof. A rear end portion 4b and side end
portions 4c and 4c of both sides in the widthwise direction of the
top plate 4 are formed from a hanging-down surface Fv vertically
hanging down from an outer circumferential end of the top surface
4t and a folded surface Fc folded downward from a lower end of the
hanging-down surface Fv toward the inside of the top plate 4 in the
horizontal direction.
[0075] In addition, as shown in FIG. 5, a cover member 10 formed of
a resin and configured to cover the hanging-down surface Fv is
mounted on the rear end portion 4b and the side end portions 4c and
4c of the top plate 4.
[0076] As shown in FIGS. 5 and 6, a front end portion 4a of the top
plate 4 is continuous with the top surface 4t and has an upper
curved surface F1, an upper slant surface (an upper inclined
section) F2, a front end upper curved surface (a front end surface)
F3, a front end lower curved surface (a lower inclined surface,
front end surface) F4 and a lower plane F5.
[0077] The upper curved surface F1 is formed to gradually curve
downward from the top surface 4t toward the front side.
[0078] The upper slant surface F2 is continuous with the upper
curved surface F1 and formed in a planar shape inclined downward
toward the front side. Here, the upper slant surface F2 is formed
such that an inclination angle downward with respect to the
horizontal direction is, for example, 10.degree. to 20.degree.,
more preferably, 15.degree. to 20.degree..
[0079] The front end upper curved surface F3 configures a portion
of a front end surface 4f of the front end portion 4a of the top
plate 4, is continuous with the upper slant surface F2 and is
formed to be curved downward toward the front side.
[0080] The front end lower curved surface F4 configures a remaining
portion of the front end surface of the front end portion 4a of the
top plate 4, is continuous with the front end upper curved surface
F3 and is formed to be curved rearward toward the lower side.
[0081] The lower plane F5 is continuous with the front end lower
curved surface F4 and formed to extend rearward parallel to the top
surface 4t.
[0082] As shown in FIG. 5, the top plate 4 is formed to include a
base member (a support member) 211, a surface coating material (a
coating material) 12, a rear reinforcement member 13, an
intermediate reinforcement member 14 and a front reinforcement
member 15.
[0083] The base member 211 is formed from a steel plate, and folded
and curved such that the top surface 4t, the hanging-down surfaces
Fv of the rear end portion 4b and the side end portions 4c, the
folded surface Fc, and the upper curved surface F1, the upper slant
surface F2, the front end upper curved surface F3, the front end
lower curved surface F4 and the lower plane F5 of the front end
portion 4a are formed integrally.
[0084] As shown in FIG. 5, for example, two intermediate
reinforcement members 14 are formed on a lower surface 4u of the
top plate 4 with an interval therebetween in the forward/rearward
direction. The intermediate reinforcement members 14 are formed to
extend in the widthwise direction of the top plate 4. Each of the
intermediate reinforcement members 14 integrally includes a front
joining surface 14a and a rear joining surface 14b formed along the
lower surface 4u of the top plate 4, a front surface 14c vertically
hanging down from the front joining surface 14a, a rear surface 14d
vertically hanging down from the rear joining surface 14b, a lower
surface 14e disposed in the horizontal surface and configured to
connect a lower end of the front surface 14c and a lower end of the
rear surface 14d. The intermediate reinforcement member 14 is
formed by folding a steel plate. The intermediate reinforcement
members 14 are joined by spot welding or the like in a state in
which the front joining surface 14a and the rear joining surface
14b abut against the lower surface 4u of the top plate 4.
[0085] As shown in FIG. 6, the front reinforcement member 15
integrally includes a rear joining surface 15a formed along the
lower surface 4u of the top plate 4, a rear surface 15b vertically
hanging down from the rear joining surface 15a, a lower surface 15c
extending forward from a lower end of the rear surface 15b, a step
section 15d bent upward in the front end portion of the lower
surface 15c, front section support surface 15e extending forward
from the step section 15d and formed along an upper surface of the
lower plane F5 of the base member 211, a front surface 15f
vertically extending upward from a front end of the front section
support surface 15e, and a front inclined surface 15g extending
rearward from an upper end of the front surface 15f to be inclined
upward and formed along a lower side of the upper slant surface F2
of the base member 211. The front reinforcement member 15 is formed
by folding a steel plate. The front reinforcement member 15 is
joined to the top plate 4 by spot welding or the like while the
front section support surface 15e, the front surface 15f and the
front inclined surface 15g are inserted between the lower plane F5
of the front end portion 4a of the top plate 4 and the upper slant
surface F2 from the rear side and the rear joining surface 15a
abuts the lower surface 4u of the top plate 4.
[0086] Next, effects of the desk 1 with a vertically moving top
plate according to the embodiment will be described with reference
to the accompanying drawings.
[0087] In the desk 1 with a vertically moving top plate according
to the embodiment, since the concave section 469 that can
accommodate the socket portion 11a of the power source tap 11 is
formed in the top plate 4, the wiring of the electronic device
installed on the top plate 4 can be connected to the socket portion
11a of the power source tap 11.
[0088] Then, as the socket portion 11a of the power source tap 11
is accommodated in the concave section 469 formed in the top plate
4, the socket portion 11a of the power source tap 11 can be
prevented from protruding from the lower surface of the top plate
4.
[0089] For this reason, even if the top plate 4 approaches or comes
in contact with an article such as a wagon or the like installed
below the top plate 4 when the top plate 4 is lowered, the socket
portion 11a of the power source tap and the article can be
prevented from being damaged without the socket portion 11a of the
power source tap 11 being sandwiched between the top plate 4 and
the article.
[0090] In addition, since the socket portion 11a of the power
source tap 11 does not protrude from the lower surface of the top
plate 4, it is possible to prevent a user from coming in contact
with the socket portion 11a of the power source tap 11.
[0091] In addition, as the socket portion 11a of the power source
tap 11 is magnetically attached on the inner surface of the concave
section 469, the socket portion 11a of the power source tap 11 can
be easily fixed into the concave section 469. In addition, a
position of the socket portion 11a of the power source tap 11 can
be easily changed.
[0092] Further, in the embodiment, the socket portion 11a of the
power source tap 11 is configured to be magnetically attached on
the second horizontal plate section 464, the second vertical plate
section 463 and the third vertical plate section 465 that
constitute the concave section 469. Then, an orientation of the
socket portion 11a of the power source tap 11 differs when
magnetically attached on the second horizontal plate section 464,
when magnetically attached on the second vertical plate section 463
and when magnetically attached on the third vertical plate section
465. For this reason, as the socket portion 11a of the power source
tap 11 is magnetically attached on any one of the second horizontal
plate section 464, the second vertical plate section 463 and the
third vertical plate section 465 to mach a shape of the concave
section 469 or the socket portion 11a of the power source tap 11,
the socket portion 11a of the power source tap 11 can be
accommodated in the concave section 469 without protruding from the
concave section 469.
[0093] In addition, as the wiring insertion hole 49 through which
the wiring of the electronic device can be inserted in the
upward/downward direction is formed in the top plate 4 and the
wiring insertion hole 49 is disposed at a position overlapping the
concave section 469 when seen in a plan view, the wiring of the
electronic device on the top plate 4 can easily reach the concave
section 469 and simplification of the wiring can be achieved. For
this reason, the appearance of the wiring of the electronic device
can be improved and wiring of the electronic device can be easily
performed.
[0094] In addition, since the concave section 469 extends in the
leftward/rightward direction and both end portions in the
leftward/rightward direction reach an edge portion of the top plate
4 in the leftward/rightward direction, the wiring portion 11b of
the power source tap 11 can be extracted to the outside of the top
plate 4 in the leftward/rightward direction through the concave
section 469. For this reason, since the wiring portion 11b of the
power source tap 11 does not hang down from the top plate 4, when
the top plate 4 is raised and lowered, the wiring portion 11b of
the power source tap 11 can be prevented from being hooked by an
article such as a wagon or the like installed below the top plate
4. In addition, since the wiring portion 11b of the power source
tap 11 does not hang down from the top plate 4, it is possible to
prevent a user from coming in contact with the wiring portion 11b
of the power source tap 11.
[0095] According to the desk 1 with a vertically moving top plate
as configured above, as the upper slant surface F2 inclined forward
and downward is provided at an upper side of the front end portion
4a of the top plate 4, it is possible to prevent the front end
portion 4a of the top plate 4 from biting into a user's body, arm,
or the like.
[0096] Accordingly, the desk 1 with a vertically moving top plate
can be used in a pleasant use environment. Even when a user
performs standing work for a long time and the user leans forward
close to the front end portion 4a of the top plate 4, it is
possible to prevent the front end portion 4a of the top plate 4
from biting and a large force from being applied to a body region
of a user.
[0097] In addition, the top plate 4 has the front end lower curved
surface F4 formed below the front end portion 4a and inclined
downward and rearward. As the above-mentioned configuration is
provided, in comparison with the configuration in which the front
end lower curved surface F4 is not formed below the front end
portion 4a of the top plate 4, a field of view to a lower space of
the top plate 4 widens. In addition, the front end portion 4a of
the support body can be shown to be thin, and an appearance of the
top plate 4 can be improved.
[0098] Further, the operation units 7 configured to operate an
elevating operation of the raising and lowering mechanism unit 5
are installed at a lower side of the front end portion 4a and a
rear side of the front end lower curved surface F4 of the top plate
4. As the above-mentioned configuration is provided, visibility of
the operation unit 7 installed below the front end portion 4a of
the top plate 4 is increased by the front end lower curved surface
F4.
[0099] Accordingly, operability when a user vertically elevates the
top plate 4 can be improved.
[0100] In addition, in the top plate 4, as the top surface 4t, the
upper slant surface F2, the front end upper curved surface F3 and
the front end lower curved surface F4 are formed to be integrally
continuous with each other, an outer surface 211f of the top plate
4 becomes smooth.
[0101] Further, when a shape of the front end portion 4a of the top
plate 4 is formed of a wooden material, a large thickness of the
front end portion 4a in the upward/downward direction needs to be
provided to secure the strength for the front end portion 4a, for
example. On the other hand, when the top plate 4 is constituted by
a base member 21 formed of steel, and the surface coating material
12, the strength for the top plate 4 can be secured while reducing
a thickness of the front end portion 4a of the top plate 4 such it
becomes thin.
[0102] In addition, in the desk 1 with a vertically moving top
plate including the above-mentioned top plate 4, the leg bodies 2
have the raising and lowering mechanism units 5 provided at the
intermediate section of the top plate 4. In this way, in the case
in which the raising and lowering mechanism units 5 that constitute
columns of the leg bodies 2 are disposed at the intermediate
section of the top plate 4 in the forward/rearward direction, when
a load is applied to the front end portion 4a of the top plate 4, a
large moment is applied to the raising and lowering mechanism unit
5. In particular, in the desk 1 with a vertically moving top plate
in which the top plate 4 can be raised and lowered, when the top
plate 4 is raised and lowered, if a load is applied to the front
end portion 4a of the top plate 4, anti-overturning properties
deteriorate.
[0103] On the other hand, since the upper slant surface F2 is
formed on the front end portion 4a of the top plate 4, when a
user's hand or an article is placed on the top plate 4, the user's
hand or the article cannot be easily placed on the upper slant
surface F2. Accordingly, a region where the load is applied is a
region behind the upper slant surface F2 due to disposition of the
hand or the article placed on the top plate 4. Accordingly, an
action point of the load is disposed closer to the raising and
lowering mechanism unit 5, and a moment applied to the raising and
lowering mechanism unit 5 is reduced. Accordingly, anti-overturning
properties of the desk 1 with a vertically moving top plate can be
improved.
[0104] In addition, in the top plate 4, the upper slant surface F2
is formed on the front end portion 4a only, and the rear end
portion 4b and the side end portions 4c are formed by the
hanging-down surface Fv. Accordingly, when the rear end portion 4b
or the side end portions 4c of the desk 1 with a vertically moving
top plate is disposed to abut against the wall surface, other
household goods, or the like, a gap or a concave section cannot be
easily generated between the rear end portion 4b or the side end
portions 4c of the top plate 4 and the wall surface or the other
household goods. As a result, the article can be prevented from
falling off from the top plate 4.
[0105] Hereinabove, while the embodiment of the desk 1 with a
vertically moving top plate according to the present invention has
been described, the present invention is not limited to the
embodiment and may be appropriately modified without departing from
the spirit of the present invention.
[0106] For example, while the desk 1 with a vertically moving top
plate is configured to have the pair of raising and lowering
mechanism units 5 and 5 and the control unit 6 and the top plate 4
can be raised and lowered by an operation of the operation unit 7
in the embodiment, the mechanism configured to raise and lower the
top plate 4 may be, for example, a mechanism using a gas spring, a
gear, or the like, in addition thereto.
[0107] In addition, while the embodiment has a configuration in
which the top plate 4 has the core 41 formed by processing a metal
plate such as a steel plate or the like, and the surface material
42 such as a melamine board or the like configured to cover the
surface of the core 41, the top plate 4 may be constituted by a
plywood formed of wood as long as the concave section configured to
accommodate the socket portion 11a of the power source tap 11 is
formed.
[0108] In addition, while the concave section 469 extends in the
leftward/rightward direction and is formed at a rear side of the
top plate 4 in the embodiment, a shape or a place formed with
respect to the top plate 4 may be appropriately set.
[0109] In addition, while the inner surface of the concave section
469 has a magnetic property in the embodiment, the magnetic
property may not be provided. In this case, the socket portion 11a
of the power source tap 11 may be fixed to the concave section 469
by a fixing tool such as a screw, a hook formed in the concave
section 469, or the like. In addition, a plate member on which the
socket portion 11a of the power source tap 11 can be placed may be
installed below the concave section 469.
[0110] In addition, in the embodiment, the second horizontal plate
section 464, the second vertical plate section 463 and the third
vertical plate section 465 that constitute the concave section 469
have a magnetic property, the socket portion 11a of the power
source tap 11 is magnetically attached on the sections, and a
portion of the inner surface of the concave section 469 has a
magnetic property. The socket portion of the power source tap 11
may be magnetically attached on the portion having a magnetic
property.
[0111] In addition, while the wiring insertion hole 49 is formed in
the top plate 4 in the embodiment, the wiring insertion hole 49 may
be not formed.
[0112] In addition, while the two wiring insertion holes 49 are
formed at positions overlapping the concave section 469 when seen
in a plan view in the embodiment, the wiring insertion holes 49 may
be formed at positions that do not overlap the concave section 469
when seen in a plan view and the number of wiring insertion holes
49 formed in the top plate 4 may be appropriately set.
[0113] In addition, while the concave section 469 extends in the
leftward/rightward direction, both end portions in the
leftward/rightward direction reach the edge portion of the top
plate 4 in the leftward/rightward direction and the wiring portion
11b of the power source tap 11 is extracted to the outside of the
top plate 4 in the leftward/rightward direction through the concave
section 469 in the embodiment, the wiring portion 11b of the power
source tap 11 may be extracted to the lower side or the outer side
of the top plate 4 without passing through the concave section
469.
[0114] In addition, for example, while the upper slant surface F2
is formed as the upper inclined section of the front end portion 4a
of the top plate 4 in the embodiment, the upper inclined section is
not limited to a planar inclined surface and may be a curved
surface as long as the upper inclined surface may be inclined
forward and downward. Similarly, the lower inclined surface formed
on the front end portion 4a is also not limited to the front end
lower curved surface F4 and a planar inclined surface may be formed
as long as the lower inclined surface is inclined downward and
rearward.
[0115] In addition, while the upper slant surface F2 is formed on
only the front end portion 4a of the top plate 4 in the embodiment,
there is no limitation thereto. According to a use type of the desk
1 with a vertically moving top plate, a configuration in which the
upper slant surface F2, the front end lower curved surface F4, and
so on, are formed on the rear end portion 4b or the side end
portions 4c of the top plate 4 in the same manner may be
provided.
[0116] In addition, the desk 1 with a vertically moving top plate
may have any other configuration such as any configuration,
disposition, number of installed leg bodies 2, and so on, as long
as the top plate 4 can be raised and lowered.
[0117] In addition, the configuration of the raising and lowering
mechanism unit 5 may be any other configuration as long as the top
plate 4 can be raised and lowered.
INDUSTRIAL APPLICABILITY
[0118] According to the desk with a vertically moving top plate of
the present invention, the power source tap installed below the top
plate can be prevented from coming in contact with an article such
as a wagon or the like installed below the top plate or a user.
REFERENCE SIGNS LIST
[0119] 1 Desk with a vertically moving top plate [0120] 2 Leg
bodies (leg parts) [0121] 3 Connecting member [0122] 4 Top plate
[0123] 5 Raising and lowering mechanism unit (raising and lowering
mechanism) [0124] 11 Power source tap [0125] 11a Socket portion
[0126] 11b Wiring portion [0127] 49 Wiring insertion hole (hole
section) [0128] 464 Second horizontal plate section (bottom surface
section) [0129] 463 Second vertical plate section (side surface
section) [0130] 465 Third vertical plate section (side surface
section) [0131] 469 Concave section
* * * * *