Ceiling-lifting miscellaneous equipment

Abstract

To provide top board lifting / lowering-type furniture capable of protecting wiring by suppressing interference of the wiring, with lifting / lowering of a top board.SOLUTION: Top board lifting / lowering-type furniture includes a plurality of leg bodies 21 extending upward from a floor surface and telescopically movable in the vertical direction, a top board supported by the leg bodies 21 from the lower side and being liftable / lowerable with telescopic movement of the leg bodies 21, a support frame 22 extending along the floor surface on the lower side of the top board and connecting upper ends of any of leg bodies 21 to each other out of the plurality of leg bodies 21, and an electric functional part 13 provided to expose to an outside surface of the support frame 22. The support frame 22 includes an insertion space 33f extending along the extension direction of the support frame 22 and guiding wiring 41a and 42a lead out from the electric functional part 13, formed in the inside thereof.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a furniture with a liftable top plate.

Background Art

[0002] For example, Patent Documents 1 and 2 below disclose furniture with a top plate provided with an outlet on a rod member connecting legs. The outlet is connected to an external power source after the wiring is routed to the floor surface through the wiring. Thus, it is considered that a user of the furniture with a top plate can use an electronic device or the like placed on the top plate while supplying power to the electronic device.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in recent years, a so-called furniture with a liftable top plate that can adjust the height of the top plate according to the preferences of the user or the like by using telescopic legs may be used. In the furniture with a liftable top plate, as the top plate moves up and down, the wiring also moves up and down. Therefore, if an extra length portion of the wiring or the like is exposed in the space below the top plate, the wiring may interfere with other furniture or the lower limbs of the user arranged in the space below when the top plate moves up and down. As a result, the wiring may be damaged.

[0005] The present invention provides a furniture with a liftable top plate that can suppress interference of wiring accompanying the lifting of the top plate and protect the wiring.

Means for Solving the Problems

[0006] In order to solve the above problems, the present invention adopts the following aspects. A top plate elevating furniture according to an aspect of the present invention includes a plurality of legs extending upward from the floor surface and capable of expanding and contracting in the vertical direction, a top plate supported by the legs from below and capable of elevating as the legs expand and contract, a support frame extending along the floor surface below the top plate and connecting the upper end portions of any of the plurality of legs, and an electrical functional part provided to be exposed on the outer surface of the support frame. Inside the support frame, a wiring insertion space is formed that extends along the extending direction of the support frame and guides the wiring drawn from the electrical functional part.

[0007] According to this aspect, since the electrical functional part is exposed on the outer surface of the support frame, for example, the design can be improved compared to the case where an electrical functional part (such as an operation part) protrudes downward from the support frame. Also, when the top plate is elevated or lowered, interference between the operation part and other furniture arranged in the space below the top plate or the lower limbs of the user can be suppressed. In particular, since the wiring is guided inside the wiring insertion space, the wiring is held by the support frame itself. Therefore, it is possible to suppress the excess length part of the wiring from hanging downward from the support frame. As a result, when the top plate is elevated or lowered, interference between the excess length part of the wiring and other furniture arranged in the space below the top plate or the lower limbs of the user can be suppressed, and the wiring can be protected. Also, since the excess length part of the wiring can be suppressed from being exposed to the outside, the design can be improved.

[0008] In the top plate elevating furniture of the above aspect, it is preferable that the leg includes an inner cylinder grounded to the floor surface and an outer cylinder into which the inner cylinder is inserted from below and is movable in the vertical direction with respect to the inner cylinder. According to this aspect, the lower end opening of the outer cylinder faces downward, and the upper end opening of the inner cylinder is accommodated inside the outer cylinder. Therefore, for example, when liquid or the like flows downward along the outer peripheral surface of the outer cylinder, it is possible to suppress the liquid from entering the inside of the leg through the upper end opening of the inner cylinder or the like. Therefore, the occurrence of corrosion inside the leg or malfunction of the elevating mechanism can be suppressed.

[0009] In the top plate elevating furniture of the above aspect, it is preferable that the support frame is formed in a frame shape extending along the outer peripheral edge of the top plate and supports the top plate from below. According to this aspect, since the support frame extends along the outer peripheral edge of the top plate, it is easy to access the electrical functional parts exposed on the outer surface of the support frame. Therefore, it is possible to provide a user-friendly top plate elevating furniture. Further, since the support frame is formed in a frame shape, the wiring drawn out from the electrical functional parts can be effectively routed.

[0010] In the top plate elevating furniture of the above aspect, it is preferable that the outer surface is located inside the outer peripheral edge of the top plate. According to this aspect, for example, when liquid is spilled on the top plate, it is possible to suppress the liquid flowing downward along the outer peripheral edge of the top plate from flowing on the outer surface of the support frame. Thereby, it is possible to suppress the liquid from adhering to the electrical functional parts.

[0011] In the top plate elevating furniture of the above aspect, it is preferable that the legs are electrically operated telescopic legs and the electrical functional part is an operation part for operating the expansion and contraction of the legs. According to this aspect, since the operation part 42 is exposed on the outer surface of the support frame, the convenience of the elevation operation of the top plate (the expansion and contraction operation of the legs) can be improved.

[0012] In the top plate elevating furniture of the above aspect, among the support frames, a connecting member that connects the portions facing each other in the first direction along the floor surface and forms a lead-out space from which the wiring routed in the wiring insertion space is drawn out is provided, and it is preferable that a relay member that connects between the wiring and an external power source is accommodated in the lead-out space. According to this aspect, by gathering the wiring inside the top plate lifting furniture and then routing it to an external power source, the number of wirings exposed outside the top plate lifting furniture can be reduced. Further, by forming a drawing space in the connection member provided inside the support frame, the wiring drawn from the drawing space can be arranged inside with respect to the outer peripheral edge of the top plate. As a result, it becomes possible to route the wiring at a position difficult to be visually recognized by the user. As a result, it is possible to further improve the design and suppress the interference of the lower limbs of the user of the top plate lifting furniture with the wiring.

[0013] In the top plate lifting furniture of the above aspect, it is preferable that the electric functional part is a socket into which an external wiring routed from outside the top plate lifting furniture is inserted. According to this aspect, for example, when a user of the top plate lifting furniture uses an electronic device on the top plate, the electronic device can be used while power is supplied to the electronic device. Thereby, the convenience of the top plate lifting furniture can be improved.

[0014] In the top plate lifting furniture of the above aspect, it is preferable that the outer surface of the support frame extends orthogonally to the floor surface. According to this aspect, since the electric functional part is easily visible to the user, the operability of the electric functional part can be improved.

Effect of the Invention

[0015] According to each of the above aspects, interference of the wiring accompanying the lifting and lowering of the top plate can be suppressed, and the wiring can be protected.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0017] Next, embodiments of the present invention will be described with reference to the drawings. In the embodiments and modifications described below, corresponding components may be denoted by the same reference numerals and the description thereof may be omitted. In the following description, expressions indicating relative or absolute arrangements such as "parallel", "orthogonal", "center", "coaxial", etc. not only strictly represent such arrangements, but also represent states in which they are relatively displaced with tolerances and angles or distances that can obtain the same function. Further, in the present embodiment, "facing each other" includes not only the case where the orthogonal directions (normal directions) of two surfaces coincide with each other, but also the case where the orthogonal directions intersect each other.

[0018] (First Embodiment) [Top Plate Elevating Furniture 1] FIG. 1 is a perspective view showing the top plate elevating furniture 1 in the lowered end position. FIG. 2 is a perspective view showing the top plate elevating furniture 1 in the raised end position. As shown in FIGS. 1 and 2, the top plate elevating furniture 1 includes a top plate 11, a support structure 12, and an electrical functional unit 13. The top plate elevating furniture 1 can use the top plate 11 at a height according to the user's preference by raising and lowering the top plate 11. The top plate elevating furniture 1 is installed, for example, in offices, public facilities, houses, etc. In the following description, the direction orthogonal to the floor surface F is defined as the vertical direction, and the two directions orthogonal to the vertical direction are defined as the left-right direction and the front-back direction (first direction). In this case, in the left-right direction and the front-back direction, the direction toward the center of the top plate elevating furniture 1 may be referred to as the inner side, and the direction away from the center of the top plate elevating furniture 1 may be referred to as the outer side.

[0019] <Ceiling plate 11> The ceiling plate 11 is, for example, rectangular in a plan view with the left - right direction as the longitudinal direction. In the present embodiment, the ceiling plate 11 is formed in a thin plate shape from metal or the like. However, the ceiling plate 11 may be made of wood, resin, or the like. Also, in the illustrated example, the outer peripheral edge of the ceiling plate 11 is formed on a flat surface orthogonal to the floor surface F. However, the outer peripheral edge of the ceiling plate 11 may be inclined with respect to the floor surface F. Note that the plan - view shape of the ceiling plate 11 is not limited to a rectangular shape, and may be a square, other polygonal shape, circular shape, elliptical shape, or the like.

[0020] <Support structure 12> The support structure 12 is installed on the floor surface F and supports the ceiling plate 11 from below. The support structure 12 includes a plurality of legs 21, a support frame 22, a first reinforcing beam 23 (see FIG. 3), and a second reinforcing beam 24 (see FIG. 3). Each leg 21 is provided corresponding to each corner of the ceiling plate 11. The plurality of legs 21 are electric telescopic legs. The leg 21 is configured to be telescopically extendable in the vertical direction by a plurality of cylindrical bodies (inner cylinder 21a and outer cylinder 21b in the present embodiment) being nested. Note that the plurality of legs 21 may be provided in a configuration where a pair is provided on the left and right with respect to the ceiling plate 11.

[0021] The inner cylinder 21a is formed in a cylindrical shape extending in the vertical direction. The inner cylinder 21a is grounded to the floor surface F via an adjuster or the like. The inner cylinder 21a extends upward with respect to the floor surface F. The outer cylinder 21b is formed in a cylindrical shape with an inner diameter larger than that of the inner cylinder 21a. The inner cylinder 21a is inserted into the outer cylinder 21b through the lower - end opening. That is, in the leg 21, the upper - end opening of the inner cylinder 21a is accommodated inside the outer cylinder 21b. Inside the outer cylinder 21b, a telescopic mechanism (for example, a cylinder mechanism, a rack - and - pinion mechanism, a ball - screw mechanism, etc. (not shown)) for connecting the inner cylinder 21a and the outer cylinder 21b is provided.

[0022] FIG. 3 is a partial perspective view of the top plate elevating furniture 1 with the top plate 11 removed. As shown in FIG. 3, the support frame 22 is formed in a frame shape that is slightly smaller than the outer shape of the top plate 11. The support frame 22 is fixed to the lower surface of the top plate 11 at a portion located inside the outer peripheral edge of the top plate 11. The support frame 22 includes a corner member 31, a short side portion 32, and a long side portion 33.

[0023] The corner member 31 constitutes each corner of the support frame 22. The corner member 31 connects one leg 21, one short side portion 32, and one long side portion 33 to each other at a position corresponding to the corner of the top plate 11. Specifically, the corner member 31 includes an equipment housing portion 31a, a leg joint 31b, a short side joint 31c, and a long side joint 31d. The equipment housing portion 31a is formed in a fan shape having an arc-shaped portion protruding toward the diagonal corner member 31 in plan view. A drive mechanism (for example, a motor etc. (not shown)) of the leg 21 is housed in the equipment housing portion 31a.

[0024] The leg joint 31b protrudes downward from the corner of the equipment housing portion 31a (the corner of the support frame 22). The upper end portion of the outer cylinder 21b is connected to the leg joint 31b by screwing or the like. The telescoping mechanism of the leg 21 is connected to the drive mechanism through the equipment housing portion 31a and the leg joint 31b. The leg 21 moves the outer cylinder 21b in the vertical direction with respect to the inner cylinder 21a when the telescoping mechanism operates by the driving force of the drive mechanism. Therefore, the corner member 31 and the leg 21 constitute the elevating leg unit 35.

[0025] The short side joint 31c is provided in the corner member 31 facing the inner side in the front-rear direction (the side of the corner member 31 facing each other in the front-rear direction) from the equipment housing portion 31a. The long side joint 31d is provided in the corner member 31 facing the inner side in the left-right direction (the side of the corner member 31 facing each other in the left-right direction) from the equipment housing portion 31a.

[0026] The short side portion 32 constitutes the short sides located on both the left and right sides of the support frame 22 and extending in the front-rear direction. The short side portion 32 is bridged between the short side joints 31c of the corner members 31 facing each other in the front-rear direction among the corner members 31. The short side portion 32 is a metal bar. In a sectional view, the short side portion 32 has a rectangular shape with the vertical direction as the longitudinal direction and the horizontal direction as the short side direction, and extends in the front-rear direction. That is, the short side portion 32 is formed in a square tube shape having a top wall 32a, an inner wall 32b, a bottom wall 32c, and an outer wall 32d. The inner space of the short side portion 32 constitutes a short side portion insertion space (wiring insertion space) 32f that penetrates the short side portion 32 in the front-rear direction (extending direction). The short side portion 32 is fixed to the short side joints 31c of the corresponding corner members 31 at both ends in the front-rear direction by screws or the like. The short side portion insertion space 32f may communicate with the device accommodation portion 31a through the short side joint 31c.

[0027] The long side portion 33 constitutes the long sides located on both the front and rear sides of the support frame 22 and extending in the left-right direction. The long side portion 33 is bridged between the long side joints 31d of the corner members 31 facing each other in the left-right direction among the corner members 31. The long side portion 33 is, like the short side portion 32, a metal bar. In a sectional view, the long side portion 33 has a rectangular shape with the vertical direction as the longitudinal direction and the front-rear direction as the short side direction, and extends in the left-right direction. That is, the long side portion 33 is formed in a square tube shape having a top wall 33a, an inner wall 33b, a bottom wall 33c, and an outer wall 33d. The inner space of the long side portion 33 constitutes a long side portion insertion space (wiring insertion space) 33f that penetrates the long side portion 33 in the left-right direction. The long side portion 33 is fixed to the long side joints 31d of the corresponding corner members 31 at both ends in the left-right direction by screws or the like. The long side portion insertion space 33f may communicate with the device accommodation portion 31a through the long side joint 31d.

[0028] Figure 4 is a sectional view corresponding to the line IV-IV in Figure 1. As shown in FIG. 4, the support frame 22 is fixed to the top plate 11 by screws or the like via, for example, the top walls 32a and 33a. Thereby, the top plate 11 is supported from below by the support frame 22 in a state of being in contact with the upper surfaces of the top walls 32a and 33a. In this state, the outer peripheral edge of the top plate 11 projects outward with respect to the support frame 22. For example, the outer peripheral edge of the top plate 11 is slightly positioned outside in the front-rear direction with respect to the outer surfaces of the outer walls 32d and 33d (the surfaces facing the outside in the front-rear direction). However, the outer surfaces of the outer walls 32d and 33d and the outer peripheral surface of the top plate 11 may be flush with each other, or the outer surfaces of the outer walls 32d and 33d may be arranged outside the outer peripheral edge of the top plate 11. In the present embodiment, the outer surfaces of the support frame 22 (for example, the outer surfaces of the outer walls 32d and 33d) are arranged perpendicular to the floor surface F.

[0029] As shown in FIGS. 3 and 4, the first reinforcing beam 23 bridges the portions of the support frame 22 (each long side portion 33) that face each other in the front-rear direction. In the present embodiment, the first reinforcing beam 23 bridges the central portions in the left-right direction of each long side portion 33. The first reinforcing beam 23 is formed in a tray shape (shallow dish shape) that opens upward and extends in the front-rear direction. The bottom wall 23a of the first reinforcing beam 23 extends in the front-rear direction along the floor surface F with a space from the lower surface of the top plate 11. The lower surface of the bottom wall 23a is flush with the lower surface of the support frame 22 (for example, the bottom walls 32c and 33c).

[0030] The side walls 23b of the first reinforcing beam 23 extend upward from both left and right end edges of the bottom wall 23a. The upper end edges of the side walls 23b are close to or in contact with the lower surface of the top plate 11 from below. That is, the first reinforcing beam 23 forms a drawing space S below the top plate 11 by the bottom wall 23a and the side walls 23b.

[0031] As shown in Fig. 3, at both front and rear ends of each side wall 23b, there are provided overhanging pieces 23e that project outward in the left - right direction. The overhanging pieces 23e extend in the left - right direction along the inner side wall 33b of the long side portion 33 (the wall portion located on the inner side in the front - rear direction of the long side portion 33). The overhanging pieces 23e are fixed to the inner side wall 33b of the long side portion 33 by screws, welding, etc. Thereby, the first reinforcing beam 23 is supported by the support frame 22.

[0032] A bottom wall communication hole 23c is formed in the bottom wall 23a. The bottom wall communication hole 23c vertically communicates the inside and outside of the extraction space S. A plurality of side wall communication holes 23d are formed in the side wall 23b. The side wall communication holes 23d are arranged side by side in the front - rear direction. Each side wall communication hole 23d horizontally communicates the inside and outside of the extraction space S. Note that the number, shape, position, etc. of each communication hole 23c, 23d can be appropriately changed.

[0033] As shown in Fig. 4, in the central portion in the left - right direction of the inner side wall 33b of each long side portion 33, an extraction port 33g is formed. The extraction port 33g penetrates the inner side wall 33b in the front - rear direction. The extraction port 33g is open toward the inside of the extraction space S, and communicates the inside of the long side portion insertion space 33f and the inside of the extraction space S.

[0034] As shown in Fig. 3, a pair of second reinforcing beams 24 are provided on both the left and right sides of the first reinforcing beam (connecting member) 23. Each second reinforcing beam 24 bridges the opposing portions in the front - rear direction of the support frame 22 (each long side portion 33). In the present embodiment, the second reinforcing beam 24 extends in the front - rear direction from the boundary portion between the long side portion 33 and the corner member 31.

[0035] Each second reinforcing beam 24 is formed in a C shape that is open toward the inside in the left - right direction in a cross - sectional view orthogonal to the front - rear direction. Therefore, the inside of each second reinforcing beam 24 constitutes a beam space 24a that extends in the front - rear direction. However, each second reinforcing beam 24 may be cylindrical or the like. Both ends of each second reinforcing beam 24 in the front - rear direction are fixed to the inner wall 33b, for example, by screws or welding. In each second reinforcing beam 24, guide holes 24c are formed at both ends in the front - rear direction. Each guide hole 24c penetrates each reinforcing beam 24 in the left - right direction.

[0036] In the inner wall 33b of the long side portion 33, a drawing hole 33h is formed in a portion that is located inside the second reinforcing beam 24 in the left - right direction. The drawing hole 33h is open toward the inside in the front - rear direction and communicates the inside and outside of the long side portion insertion space 33f.

[0037] The electrical functional parts 13 are respectively provided at both ends in the left - right direction of each long side portion 33. In the following description, the electrical functional part 13 provided at one end of one long side portion 33 will be described as an example. The electrical functional part 13 is, for example, an outlet 41, an operation part 42, or the like. Two outlets 41 are provided side by side in the left - right direction. Each outlet 41 is provided on the long side portion 33 with its insertion port facing the outside in the front - rear direction by fitting the housing of the outlet 41 into a through - hole formed in the outer wall 33d of the long side portion 33 (the wall portion located on the outside in the front - rear direction of the long side portion 33). Therefore, the outlet 41 is provided so as to be exposed on the outer surface of the support frame 22 (long side portion 33). Note that the number of outlets 41 may be one or three or more.

[0038] The operation unit 42 is operated by the user when the top plate 11 is moved up and down. The operation unit 42 is provided adjacent to the power outlet 41 in the long side portion 33. In the present embodiment, the operation unit 42 is provided in the long side portion 33 in a state of facing outward in the front-rear direction by fitting the housing of the operation unit 42 into a through hole formed in the outer wall 33d. Therefore, the operation unit 42 is provided so as to be exposed on the outer surface of the support frame 22 (long side portion 33). The operation unit 42 may be a push switch, or may be a touch sensor, a touch panel, or the like.

[0039] Subsequently, the wiring layout of the electrical function unit 13 and each lifting leg unit 35 will be described. In each lifting leg unit 35, a drive wiring 35a is drawn out from the drive mechanism. After each drive wiring 35a is drawn out from the equipment housing portion 31a, it is guided through the guide hole 24c of the second reinforcing beam 24 to the draw-in hole 33h of the long side portion 33. The drive wiring 35a is drawn into the long side portion insertion space 33f through the draw-in hole 33h, and then is guided through the long side portion insertion space 33f to the first reinforcing beam 23 (drawing-out space S). Specifically, the drive wiring 35a is routed inward in the left-right direction in the long side portion insertion space 33f, and then is drawn out into the drawing-out space S through the draw-out port 33g. Each drive wiring 35a is connected to a control unit (relay member) 50 in the drawing-out space S. The control unit 50 is disposed on the bottom wall 23a in the drawing-out space S. The control unit 50 comprehensively controls each leg body 21 in response to the operation of the operation unit 42. Note that the drive wiring 35a may be drawn into the long side portion insertion space 33f from the equipment housing portion 31a via the long side joint 31d.

[0040] An operation unit wiring 42a is drawn out from each operation unit 42. The operation unit wiring 42a is routed inward in the left-right direction in the long side portion insertion space 33f, and then is drawn out into the drawing-out space S through the draw-out port 33g. Each drive wiring 42a is connected to the control unit 50 in the drawing-out space S.

[0041] A power cord wiring 41a is drawn out from the power outlet 41. The power cord wiring 41a is routed inward in the left - right direction within the long - side portion insertion space 33f and then drawn out into the extraction space S through the extraction port 33g. Each power cord wiring 41a is connected to a table tap (relay member) 51 within the extraction space S. The table tap 51 relays between each power outlet 41 and an external power source while gathering the power cord wirings 41a between each power outlet 41 and the external power source. The table tap 51 is disposed on the bottom wall 23a within the extraction space S.

[0042] The control unit wiring 50a drawn out from the control unit 50 and the tap wiring 51a drawn out from the table tap 51 are drawn out to the outside of the extraction space S and connected to an external power source (not shown). The control unit wiring 50a and the tap wiring 51a are drawn out to the outside of the extraction space S through, for example, any one of the side - wall through - holes 23d. The control unit wiring 50a and the tap wiring 51a are routed downward outside the extraction space S and then connected to the external power source. Note that the control unit wiring 50a and the tap wiring 51a are routed in a state covered by, for example, a wiring duct (not shown) outside the extraction space S.

[0043] In the top - plate elevating furniture 1 shown in FIGS. 1 and 2, when adjusting the height of the top - plate 11, any one of the operation units 42 is operated. Then, an operation signal is output from the operation unit 42 toward the control unit 50. The control unit 50 outputs a command signal to the drive mechanism of each elevating - leg unit 35 based on the operation signal. As a result, each elevating - leg unit 35 extends or contracts synchronously, and the top - plate 11 moves up and down in the vertical direction. As a result, the user can use the top - plate 11 after adjusting it to a preferred height. Also, when a user of the top - plate elevating furniture 1 uses an electronic device on the top - plate 11, an external wiring 60 (see FIG. 4) drawn out from the electronic device is connected to the power outlet 41. Thereby, the user can use the electronic device while power is supplied to the electronic device.

[0044] Thus, the top plate elevating furniture 1 of the present embodiment is configured to include an electrical functional unit 13 provided so as to be exposed on the outer surface of the support frame 22. According to this configuration, since the electrical functional unit 13 is exposed on the outer surface of the support frame 22, for example, the design can be improved as compared with the case where an operation unit or the like is provided protruding downward from the support frame 22. Further, when the top plate 11 is elevated or lowered, it is possible to prevent an operation unit or the like from interfering with other furniture or the lower limbs of the user disposed in the space below the top plate 11. In particular, in the present embodiment, the support frame 22 is configured to form an insertion space (long side portion insertion space 33f) that extends along the extending direction of the support frame 22 and guides the wirings 41a and 42a drawn out from the electrical functional unit 13. According to this configuration, since the wirings 41a and 42a are held by the support frame 22 itself, it is possible to suppress the surplus portions of the wirings 41a and 42a from hanging downward from the support frame 22. Thereby, when the top plate 11 is elevated or lowered, it is possible to prevent the surplus portions of the wirings 41a and 42a from interfering with other furniture or the lower limbs of the user disposed in the space below the top plate 11, and to protect the wirings 41a and 42a. Further, since it is possible to suppress the surplus portions of the wirings 41a and 42a from being exposed to the outside, the design can also be improved.

[0045] In the present embodiment, the leg body 21 is configured to include an inner cylinder 21a that is grounded on the floor surface F, and an outer cylinder 21b into which the inner cylinder 21a is inserted from below and is movable in the vertical direction with respect to the inner cylinder 21a. According to this configuration, the lower end opening of the outer cylinder 21b faces downward, and the upper end opening of the inner cylinder 21a is accommodated inside the outer cylinder 21b. Therefore, for example, when liquid or the like flows downward along the outer peripheral surface of the outer cylinder 21b, it is possible to prevent the liquid from entering the inside of the leg body 21 through the upper end opening of the inner cylinder 21a or the like. Therefore, it is possible to suppress the occurrence of corrosion inside the leg body 21 or malfunctions of the elevating mechanism.

[0046] In the present embodiment, the support frame 22 is formed in a frame shape that extends along the outer peripheral edge of the top plate 11 and supports the top plate 11 from below. According to this configuration, since the support frame 22 extends along the outer peripheral edge of the top plate 11, it is easy to access the electrical functional unit 13 exposed on the outer surface of the support frame 22. Therefore, a user-friendly top plate elevating furniture 1 can be provided. Further, since the support frame 22 is formed in a frame shape, the wirings 41a and 42a drawn from the electrical functional unit 13 can be effectively routed.

[0047] In the present embodiment, the outer surface of the support frame 22 is configured to be located inside with respect to the outer peripheral edge of the top plate 11. According to this configuration, for example, when liquid is spilled on the top plate 11, it is possible to suppress the liquid flowing downward along the outer peripheral edge of the top plate 11 from flowing on the outer surface of the support frame 22. Thereby, it is possible to suppress the liquid from adhering to the electrical functional unit 13.

[0048] In the present embodiment, the electrical functional unit 13 is configured as an operation unit 42 that operates the expansion and contraction of the leg body 21. According to this configuration, since the operation unit 42 is exposed on the outer surface of the support frame 22, the convenience of the elevation operation of the top plate 11 (the expansion and contraction operation of the leg body 21) can be improved.

[0049] In the present embodiment, the support frame 22 includes a first reinforcing beam 23 that connects the portions facing each other in the front-rear direction and forms a lead-out space S, and relay members (control unit 50, table tap 51) that connect between the wirings 41a, 42a and an external power source are accommodated in the lead-out space S. According to this configuration, by collecting the wirings 41a and 42a inside the top plate elevating furniture 1 and then routing them to the external power source, the number of wirings exposed outside the top plate elevating furniture 1 can be reduced. Further, by forming the lead-out space S in the first reinforcing beam 23 provided inside the support frame 22, the wirings 50a and 51a drawn from the lead-out space S can be arranged inside with respect to the outer peripheral edge of the top plate 11. Thereby, it becomes possible to route the wirings 50a and 51a at a position difficult to be visually recognized by the user. As a result, it is possible to further improve the designability and suppress interference between the lower limbs of the user of the top plate elevating furniture 1 and the wirings 50a and 51a.

[0050] In the present embodiment, the electrical functional unit 13 is configured as an outlet 41 into which an external wiring routed from outside the top plate elevating furniture 1 is plugged. According to this configuration, for example, when a user of the top plate elevating furniture 1 uses an electronic device on the top plate 11, the electronic device can be used while power is supplied to the electronic device. Thereby, the convenience of the top plate elevating furniture 1 can be improved.

[0051] In the present embodiment, the outer surface of the support frame 22 is configured to extend orthogonally to the floor surface F. According to this configuration, since the electrical functional unit 13 is easily visible to the user, the operability of the electrical functional unit 13 can be improved.

[0052] (Second Embodiment) FIG. 5 is an enlarged perspective view of the top plate elevating furniture 1 according to the second embodiment. FIG. 6 is a cross-sectional view corresponding to FIG. 4 of the top plate elevating furniture 1 according to the second embodiment. In the present embodiment, the cross-sectional shape of the support frame 22 is different from that of the first embodiment. In the following description, the cross-sectional shape of the support frame 22 will be described using the long side portion 133 as an example. As shown in FIGS. 5 and 6, the long side portion 133 is formed in a triangular shape in a cross-sectional view orthogonal to the front-rear direction and extends in the left-right direction in a tubular shape. Specifically, the long side portion 133 includes a top wall 133a, an inner wall 133b, a bottom wall 133c, and an outer wall 133d.

[0053] The top wall 133a is in contact with the lower surface of the top plate 11 from below. The inner wall 133b extends downward from the inner edge in the front-rear direction of the top wall 133a. The bottom wall 133c extends outward in the front-rear direction from the lower end edge of the inner wall 133b. The outer wall 133d connects between the top wall 133a and the bottom wall 133c. That is, the outer wall 133d extends while inclining inward in the front-rear direction as it goes downward. The outer wall 133d gradually expands the distance in the front-rear direction from the outer peripheral edge of the top plate 11 as it goes downward. Note that the long side portion 133 may be configured not to have the bottom wall 133c (a configuration in which the lower end edges of the inner wall 133b and the outer wall 133d are connected).

[0054] On the outer wall 133d, an electric outlet 41 and an operation unit 42 are provided as the electric functional unit 13. The electric outlet 41 and the operation unit 42 are provided to be exposed on the outer surface of the outer wall 133d (the outer surface of the support frame 22). Further, the inner space of the long side portion 133 constitutes a long side portion insertion space 133f through which various wirings (for example, the outlet wiring 41a, the operation unit wiring 42a, etc.) are routed.

[0055] Also in this embodiment, by routing the wirings 41a and 42a in the long side portion insertion space 133f, it is possible to suppress the excess length portions of the wirings 41a and 42a from interfering with other furniture or the lower limbs of the user arranged in the space below the top plate 11 when the top plate 11 is moved up and down. In particular, in this embodiment, since the outer wall 133d extends inward in the front-rear direction as it goes downward, for example, when an external wiring 60 is connected to the electric outlet 41, the protruding amount of the external wiring 60 from the outer peripheral edge of the top plate 11 can be suppressed. Thereby, the interference between the user and the external wiring 60 can be suppressed, and the comfort can be improved. Also, for example, when liquid is spilled on the top plate 11, it is possible to suppress the liquid flowing downward along the outer peripheral edge of the top plate 11 from spreading on the outer surface of the support frame 22. Thereby, it is possible to suppress the liquid from adhering to the electric functional unit 13. Note that in this embodiment, the configuration in which the cross-sectional shape of the long side portion 133 is formed in a triangular shape has been described, but it is not limited to this configuration. The cross-sectional shape of the long side portion 133 may be a fan shape, a circular shape, or the like.

[0056] (Other Modification Examples) As described above, the preferred embodiments of the present invention have been explained. However, the present invention is not limited to these embodiments. Additions, omissions, substitutions, and other changes to the configuration are possible without departing from the spirit of the present invention. The present invention is not limited by the above description and is limited only by the appended claims. In the above-described embodiment, the configuration in which the support frame 22 is formed in a frame shape extending along the outer peripheral edge of the top plate 11 has been described. However, the present invention is not limited to this configuration. As long as the support frame 22 connects the legs 21 to each other, it may extend linearly or otherwise at a position recessed inward with respect to the outer peripheral edge of the top plate 11 (for example, the central portion of the top plate 11, etc.).

[0057] In the above-described embodiment, the configuration in which the support frame 22 is connected to the lower surface of the top plate 11 has been described. However, the present invention is not limited to this configuration. The support frame 22 may connect the upper ends of the legs 21 at a position separated from the lower surface of the top plate 11. In the above-described embodiment, the configuration in which the support frame 22 connects the upper ends of all the legs 21 to each other has been described. However, the present invention is not limited to this configuration. As long as the support frame 22 connects any of the legs 21 to each other among the plurality of legs 21, it is acceptable.

[0058] In the above-described embodiment, the configuration in which the insertion spaces 32f and 33f extend over the entire lengths of the short side portion 32 and the long side portion 33 has been described. However, the present invention is not limited to this configuration. The insertion spaces 32f and 33f may be provided only in a part of the short side portion 32 and the long side portion 33. In the above-described embodiment, the configuration in which the electrical functional portion 13 is provided in the long side portion 33 has been described. However, the present invention is not limited to this configuration. The electrical functional portion 13 may be provided in the short side portion 32. In this case, the wiring drawn from the electrical functional portion 13 may be guided within the short side portion insertion space 32f.

[0059] In the above-described embodiment, the configuration in which the support frame 22 includes the cylindrical short side portion 32 and long side portion 33 has been described, but the configuration is not limited thereto. The support frame 22 is not limited to a cylindrical shape as long as at least a wiring insertion space is formed. For example, like the support frame 122 shown in FIG. 7, it may have an outer wall 122a having an outer surface on which the electric functional unit 13 is exposed, and a bottom wall 122b extending inward from the lower edge of the outer wall 122a, and may have an L-shaped cross section or the like. In this case, the space surrounded by the outer wall 122a and the bottom wall 122b functions as the insertion space 122c.

[0060] In the above-described embodiment, the configuration in which the leg body 21 is grounded to the floor surface F via the inner cylinder 21a has been described, but the configuration is not limited thereto. The leg body 21 may be configured to be grounded to the floor surface F via the outer cylinder 21b and support the top plate 11 via the inner cylinder 21a. In the above-described embodiment, the configuration in which the electrical outlet 41 and the operation unit 42 are taken as examples of the electric functional unit 13 has been described, but the configuration is not limited thereto. As the electric functional unit 13, in addition to the electrical outlet 41, for example, an electrical connection part such as a USB (Universal Serial Bus) connector receptacle or a LAN (Local Area Network) connector receptacle may be used. Further, any number of the above-described electric functional units 13 can be provided at arbitrary positions with respect to the support frame 22.

[0061] In the above-described embodiment, the configuration in which all the electric functional units 13 are provided on the support frame 22 has been described, but the configuration is not limited thereto. For the top plate elevating furniture 1, it is sufficient that at least one electric functional unit 13 is provided on the support frame 22, and the electric functional unit 13 may be exposed on the top plate 11 in addition to the support frame 22. In the above-described embodiment, the configuration in which the wiring is mainly routed through the long side portion 33 has been described, but the configuration is not limited thereto. The wiring may be routed through the short side portion 32. In the above-described embodiment, the configuration in which the control unit 50 and the table tap 51 as relay members are accommodated in the extraction space S of the first reinforcing beam 23 has been described, but the configuration is not limited thereto. The wirings 41a, 42a, etc. may be directly connected to an external power source after being routed within the wiring insertion space. In the above-described embodiment, the table has been described as an example of the top plate elevating furniture 1, but the configuration is not limited thereto. As the top plate elevating furniture, any furniture having a top plate may be used, such as a shelf, or a configuration that can move on the floor surface F like a cart device may also be used.

[0062] In addition, within the scope not departing from the gist of the present invention, it is possible to appropriately replace the components in the above-described embodiment with well-known components, and the above-described modified examples may also be appropriately combined.

Explanation of Reference Numerals

[0063] 1: Top plate elevating furniture 11: Top plate 13: Electrical functional unit 21: Leg body 21a: Inner cylinder 21b: Outer cylinder 22: Support frame 23: First reinforcing beam (connecting member) 32f: Short side insertion space (wiring insertion space) 33f: Long side insertion space (wiring insertion space) 41: Outlet (electrical functional unit) 41a: Outlet wiring (wiring) 42: Operation unit (electrical functional unit) 42a: Operation unit wiring (wiring) 50: Control unit (relay member) 50a: Wiring for control unit (wiring) 51: Table tap (relay member) 51a: Wiring for tap (wiring) 122: Support frame F: Floor surface S: Extraction space

Claims

1. a plurality of legs extending upward from the floor surface and capable of expanding and contracting in the vertical direction, a top plate supported from below by the legs and capable of rising and falling as the legs expand and contract, a support frame extending along the floor surface below the top plate and connecting the upper ends of any of the plurality of legs, an electrical functional part provided to be exposed on the outer surface of the support frame, and comprising: a wiring insertion space is formed inside the support frame, extending along the extending direction of the support frame and guiding the wiring drawn from the electrical functional part, the support frame is formed in a frame shape extending along the outer peripheral edge of the top plate and supports the top plate from below, among the support frames, a connecting member that connects the portions facing each other in the first direction along the floor surface and forms a lead-out space from which the wiring routed in the wiring insertion space is drawn out is provided, a relay member for connecting between the wiring and an external power source is accommodated in the lead-out space, the connecting member and the relay member are provided so as not to protrude below the lower surface of the support frame in a portion surrounded by the support frame in a plan view, a top plate lifting furniture.

2. the legs are an inner cylinder grounded to the floor surface, an outer cylinder into which the inner cylinder is inserted from below and movable in the vertical direction with respect to the inner cylinder, the top plate lifting furniture according to claim 1.

3. the outer surface is located inside the outer peripheral edge of the top plate, the top plate lifting furniture according to claim 1 or claim 2.

4. the legs are electric telescopic legs, the electrical functional part is an operation part for operating the expansion and contraction of the legs, the top plate lifting furniture according to any one of claims 1 to 3.

5. the electrical functional part is a socket into which an external wiring drawn from the outside of the top plate lifting furniture is inserted, the top plate lifting furniture according to any one of claims 1 to 4.

6. the outer surface of the support frame extends perpendicular to the floor surface, the top plate lifting furniture according to any one of claims 1 to 5.

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