Furniture with tabletop

Abstract

To arrange cables in a lower surface of a top board without disordering the lower surface of the top board.SOLUTION: Furniture T with a top board is obtained by providing on a lower surface 7c of a top board 7, an upper end part of a leg support 6 for electrically lifting / lowering the top board 7, an operation body 71 for ordering lifting / lowering of the top board 7 by an operation signal, and a controller 9 for receiving the operation signal via an operation cable 82 from the operation body 71, and transmitting a corresponding drive signal to the leg support 6 via a drive cable 81. The operation cable 82 extending from the operation body 71, and the drive cable 81 extending from the upper end part of the leg support 6 are connected to one end surface 9a of the controller 9 in a state of being bound in a gathering position P facing the one end surface 9a, and at least one of the cables 81, 82 adopts a structure in which it is held by the controller 9 and the top board 7.SELECTED DRAWING: Figure 18

Description

[Technical field]

[0001] The present invention relates to furniture with a top that can be electrically raised and lowered. [Background technology]

[0002] Recently, as part of work style reforms and the like, various pieces of furniture with tabletops have been developed that can be used by freely choosing between sitting, standing, and other positions by adjusting the height of the tabletop (see, for example, Patent Document 1).

[0003] Among this type of furniture with a tabletop, those with relatively simple specifications, for example, comprise, attached to the underside of the tabletop, the upper end of a leg support for electrically raising and lowering the tabletop, an operating body for commanding the raising or lowering of the tabletop by an operating signal, and a controller that receives the operating signal from the operating body via an operating cable and transmits a drive signal corresponding to the operating signal to the leg support via the drive cable, with the operating cable and drive cable often being routed along the underside of the tabletop.

[0004] However, if the cables described above are routed haphazardly as needed, the underside of the tabletop becomes messy, and a large number of ties and wiring ducts are required to prevent the cables from dangling down. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Design Registration No. 1584624 Summary of the Invention [Problem to be solved by the invention]

[0006] The invention described in claim 1 was made with this in mind, and aims to route cables under the tabletop without making the surface cluttered.

[0007] In addition to the problem described above, the invention described in claim 2 aims to route cables on the underside of the tabletop without requiring a large number of binding devices, wiring ducts, etc. [Means for solving the problem]

[0008] The furniture with a tabletop according to the invention described in claim 1 comprises, attached to the underside of the tabletop, an upper end of a leg support for electrically raising and lowering the tabletop, an operating body for commanding the raising or lowering of the tabletop by an operating signal, and a controller for receiving the operating signal from the operating body through an operating cable and transmitting a drive signal corresponding to the operating signal to the tabletop through a drive cable, the operating cable extending from the operating body and the drive cable extending from the upper end of the tabletop being connected to one end face of the controller in a bundled state at a gathering position facing the one end face of the controller, Of the operation cable and the drive cable At least one of them is sandwiched between the controller and the top plate.

[0009] The invention of claim 2 relates to the furniture with a tabletop according to claim 1, in which the operating cable and the drive cable are bound together at the gathering position by a common binding device.

[0010] The invention of claim 3 provides furniture with a tabletop according to claim 1 or 2, wherein a single-column type leg support is fixed to the center of the tabletop, and one side of the use end of the tabletop is edge In a case where the operation body is provided near the opposite end of the tabletop and the controller is provided on the opposite end of the tabletop, edge The assembly position is set near the top plate, and the operation cable extending from the operating body is guided to the assembly position, while the drive cable extending from the leg support to the other side edge of the top plate is passed between the top plate and the controller and guided to the assembly position.

[0011] The furniture with a tabletop according to the invention described in claim 4 is the furniture described in claim 3, wherein a cable guide groove is formed on at least one of the joint surfaces between the tabletop and the controller, the cable guide groove extending continuously from one end surface to the other end surface of the controller.

[0012] The furniture with a tabletop according to the invention described in claim 5 is the furniture described in claim 3 or 4, wherein the controller has an operation cable connection terminal for connecting the operation cable on one end surface and a drive cable connection terminal for connecting the drive cable, and a power terminal for connecting a power cable on the other end surface.

[0013] The furniture with a tabletop according to the invention described in claim 6 is the furniture described in claim 5, wherein the leg support comprises a stationary member supported on the floor surface and a movable member that is movable up and down relative to the stationary member and supports the tabletop at its upper end, and a power cable that rises up from the floor surface is supported by the stationary member and is not restrained by the movable member and is led to the power terminal of the controller. Effect of the Invention

[0014] According to the invention described in claim 1, it is possible to arrange cables on the underside of the tabletop without making the underside of the tabletop messy.

[0015] According to the invention described in claim 2, in addition to the effect described above, there is also an effect that cables can be routed on the underside of the tabletop without the need for a large number of ties, wiring ducts, etc. [Brief description of the drawings]

[0016] [Figure 1] 1 is an overall perspective view showing a furniture with a tabletop according to an embodiment of the present invention; [Diagram 2] FIG. 2 is an overall perspective view showing the furniture with a tabletop according to the embodiment. [Diagram 3] FIG. 2 is a front view showing the furniture with a tabletop according to the embodiment. [Figure 4]FIG. 4 is a right side view showing the furniture with a tabletop according to the embodiment. [Diagram 5] FIG. 4 is a rear view showing the furniture with a tabletop according to the embodiment. [Figure 6] FIG. 2 is a left side view showing the furniture with a tabletop according to the embodiment. [Figure 7] FIG. 2 is a plan view showing the furniture with a tabletop according to the embodiment. [Figure 8] FIG. 4 is a bottom view showing the furniture with a tabletop according to the embodiment. [Figure 9] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Figure 10] FIG. 4 is a cross-sectional view taken along line BB in FIG. [Figure 11] 10 is a cross-sectional view taken along line CC in FIG. [Figure 12] FIG. 12 is a cross-sectional view taken along line DD in FIG. [Figure 13] FIG. 4 is a diagram showing a frame structure of the furniture with a tabletop according to the embodiment. [Figure 14] FIG. 2 is an exploded perspective view showing the furniture with a tabletop according to the embodiment. [Figure 15] FIG. 2 is an exploded perspective view showing the furniture with a tabletop according to the embodiment. [Figure 16] 4A to 4C are diagrams showing an assembly mode of the furniture with a tabletop according to the embodiment. [Figure 17] FIG. 4 is an explanatory diagram showing the arrangement of operation cables according to the embodiment. [Figure 18] FIG. 4 is an explanatory diagram showing the arrangement of drive cables according to the embodiment; [Figure 19] FIG. 2 is an exploded perspective view showing the furniture with a tabletop according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, one embodiment of the present invention will be described with reference to FIGS.

[0018] This embodiment is an example in which the present invention is applied to furniture T with a tabletop, such as a single-pillar desk.

[0019] As shown in Figures 1 to 10 and 14, this furniture T with a tabletop comprises left and right leg bases 1, front and rear horizontal frames 2, 3 connecting the leg bases 1 to each other, a footrest 4 arranged on the horizontal frames 2, 3, a vertical frame 5 connecting the middle parts of the horizontal frames 2, 3 to each other, a single-column type leg support 6 erected on the vertical frame 5, and a tabletop 7 supported by the leg support 6. The upper surfaces 1a of the leg bases 1 are inclined so as to gradually and continuously rise from the use end 7a side of the tabletop 7 to the opposite use end 7b side of the tabletop 7, and the upper surface 4a of the footrest 4 is inclined in the same direction as the upper surface 1a of the leg bases 1.

[0020] As shown in Figs. 2, 8 and 14, the left and right leg bases 1 are hollow bodies each having an inner wall 11 and an outer wall 12, and the front and rear horizontal frames 2, 3 are square pipes each having both ends penetrating the inner wall 11 of the corresponding leg base 1 and rigidly connected to the outer wall 12. More specifically, the leg base 1 is a channel-like structure in which the upper edges of the inner wall 11 and the outer wall 12 are integrally connected by the upper wall 13, and the internal space is open downward. The upper wall 11 is inclined so as to gradually and continuously rise from the tabletop use end 7a side toward the tabletop opposite use end 7b side, and the main parts of the lower edges of the inner wall 11 and the outer wall 12 are inclined so as to be parallel to the upper wall 13. On the other hand, the tip parts of the lower edges of the inner wall 11 and the outer wall 12 on the use end 7a side are formed so as to be approximately parallel to the floor surface F. A bottom plate 14 that connects the inner wall 11 and the outer wall 12 is fixed to the tip of the leg base 1 on the side of the table top use end 7a.

[0021] 2, 8, 10, 13 and 14, the front horizontal frame 2 located on the use end 7a side of the tabletop 7 is disposed at a lower position than the rear horizontal frame 3 located on the opposite use end 7b side of the tabletop 7, and an end face 5a at one end (front end) of the vertical frame 5 is rigidly connected to a rearward peripheral wall surface 24 of the front horizontal frame 2, and a peripheral wall surface 33a at the other end of the vertical frame 5 is rigidly connected to a downward peripheral wall surface 32 of the rear horizontal frame 3. Specifically, the front horizontal frame 2 has an upward peripheral wall surface 21 and a downward peripheral wall surface 22 that are parallel to the upper surface 1a of the leg base 1, respectively, and has a substantially square cross section in which the forward peripheral wall surface 23 and the rearward peripheral wall surface 24 are perpendicular to the upward and downward peripheral wall surfaces 21, 22, respectively, and one end face (front end face 5a) of the vertical frame 5 is rigidly connected to the rearward peripheral wall surface 24 of the horizontal frame 2 that faces diagonally upward by welding or the like. On the other hand, the rear horizontal frame 3 has a rectangular cross section with an upward peripheral wall surface 31 and a downward peripheral wall surface 32 that are substantially horizontal, and a forward peripheral wall surface 33 and a rear peripheral wall surface 34 that are substantially vertical, and the vertical dimension is set to be larger than the front-rear dimension. The upward peripheral wall surface 53a at the rear end of the vertical frame 5 is rigidly connected to the downward peripheral wall surface 32 of the rear horizontal frame 3 by welding or the like. In this frame structure, the peripheral wall surface (the downward peripheral wall surface 32) of the rear horizontal frame 3 and the peripheral wall surface (the upward peripheral wall surface 53a) at the rear end of the vertical frame 5 are rigidly connected in a surface contact state. That is, the rear horizontal frame 3 and the rear end of the vertical frame 5 cross each other in an overlapping state in a plan view, and are joined to each other in a perpendicular posture. The vertical frame 5 is a channel-like member integrally comprising left and right side walls 51, 52, an upper wall 53 closing the space between the upper edges of the both side walls 51, 52, and a rear wall 54 closing the space between the rear ends of the both side walls 51, 52.

[0022] The footrest 4 is mounted on the front and rear horizontal frames 2, 3 as shown in Figures 1 to 3, 5, 8, 10, 13 and 14, and is arranged in an inclined position between the left and right leg bases 1 with its upper surface 4a parallel to the upper surfaces 1a of the left and right leg bases 1 and with the upper surfaces 1a of the left and right leg bases 1 protruding above the upper surfaces 4a of the footrest 4. In more detail, the footrest board 4 comprises a footrest main body 41 having an upper surface 4a parallel to the upper surfaces 1a of the left and right leg bases 1, a hanging plate 42 hanging down from both the left and right edges of the footrest main body 41 along the inner wall 11 of the leg base 1, a front frame portion 43 provided on the front edge of the footrest main body 41 and wrapping around to the front side of the front horizontal frame 2, and a rear frame portion 44 provided on the rear edge of the footrest main body 41 and wrapping around to the rear side of the rear horizontal frame 3, and the hanging plate 42 is attached to the inner wall 11 of the leg base 1 using rivets r.

[0023] 3, 5, 10, and 13, a gap S is formed between the front horizontal frame 2 and the floor surface F, into which the user's feet can enter. The front end surface 5a of the vertical frame 5 is joined to the rearward-facing peripheral wall surface 24 of the front horizontal frame 2 as described above, and does not protrude downward from the lower edge of the horizontal frame 2. Therefore, even if a foot is inserted between the horizontal frame 2 and the floor surface F and moved laterally, the foot will not interfere with the vertical frame 5.

[0024] On the other hand, the leg support 6 described above is fixed to the upper surface of the vertical frame 5, i.e., the upward peripheral wall surface 53a, by a bolt 64 inserted from the lower surface side, as shown in Figures 10 and 16. More specifically, as shown in Figures 10, 15 and 19, the leg support 6 is configured by combining a lower housing 61, a middle housing 62 and an upper housing 63 in a telescopic manner, and by using an internal electric actuator (not shown), the housings 61, 62 and 63 are extended and retracted, and is provided with an attachment part 611 at the lower end of the lower housing 61, and a top plate support bracket 631 is fixed to the upper end of the upper housing 63. The attachment part 611 is configured by fixing a bottom plate 612 to the lower end of the lower housing 61, and forming a screw hole 613 in the bottom plate 612. With the lower end 61a of the lower housing 61 in contact with the upper surface (upward peripheral wall surface 53a) of the vertical frame 5, a bolt 64 is inserted from the lower surface side of the vertical frame 5 through a screw insertion hole 53x provided in the upper wall 53 of the vertical frame 5 and screwed into a screw hole 613 of the mounting portion 611, thereby making it possible to mount the leg support 6 in a substantially vertical position on the vertical frame 5. The tabletop support bracket 631 is flat, and is fastened to the underside 7c of the tabletop 7 with a plurality of screws. A drive cable 81 for supplying drive power to the electric actuator is led out between the upper end 63b of the upper housing 63 and the tabletop support bracket 631. This drive cable 81 includes a base end cable portion 811 extending from the support 6, and a tip end cable portion 813 connected to the base end cable portion 811 via a connector 812 and having a tip end passing through a gathering position P and connected to a drive terminal 9a1 of the controller 9, but in Figures 2, 4, 15 and 18, the external appearance of the tip end cable portion 813 is omitted and only its axis is shown by a two-dot chain line. Also, in Figures 2, 4 and 15, the joint portion of the tip end cable portion 813 to the connector 812 is omitted. Since the electric actuator is a normal one, a description of its structure will be omitted.

[0025] In this embodiment, the end surface of the leg base 1 on the side of the end 7b opposite to the use end of the top plate, i.e., the rear end surface 1b, is formed parallel to the leg support 6, and the vertical frame 5 is oriented perpendicular to the rear end surface 1b of the leg base 1, so that the leg support 6 can be easily attached to the vertical frame 5. That is, according to this configuration, for example, as shown in FIG. 16, by simply setting the thickness dimension t of the storage box BX that stores the frame structure FK including the leg base 1, the horizontal frames 2 and 3, and the vertical frame 5 to a predetermined value, the leg support 6 can be easily screwed to the vertical frame 5. To be more specific, if the frame structure FK is configured as described above, it is possible to keep the frame structure FK standing with the vertical frame 5 vertical by simply taking some kind of fall prevention measure with the rear end surface 1b of the leg base 1 abutting against the floor surface F. In this state, when the storage box BX described above is slid along the floor surface F with the leg support 6 laid on the upper surface, the lower end of the leg support 6 (the lower end 61a of the lower housing 61) can be brought into a perpendicular position close to the upper surface (the upward peripheral wall surface 53a) of the vertical frame 5. Therefore, as long as the thickness dimension t of the storage box BX is preset so that the screw insertion hole 53x of the vertical frame 5 and the screw hole 613 of the mounting part 611 of the leg support 6 can be approximately aligned during this approach, the leg support 6 can be screwed to the vertical frame 5 without lifting a heavy part.

[0026] The tabletop 7 has a rectangular shape in a plan view, and can be raised and lowered in response to the extension and contraction of the leg supports 6. On the underside 7c of the tabletop 7, as shown in Figures 2 to 6, 8, 9, 11, 12, 14, 15, 17 and 18, there are attached an upper end portion (tabletop support bracket 631) of the leg supports 6 for electrically raising and lowering the tabletop 7, an operating body 71 for issuing an instruction to raise or lower the tabletop 7 by an operating signal, and a controller 9 for receiving an operating signal from the operating body 71 through an operating cable 82 and transmitting a drive signal corresponding to the operating signal to the leg supports 6 through the drive cable 81. Here, the operation cable 82 includes an operation cable main body 821 that extends from the operation body 71 and whose tip side passes through the gathering position P, and a connector 822 that is provided at the tip of this operation cable main body 821 and is connected to the operation terminal 9a2 of the controller 9, but in Figures 2, 14, 15, 17 and 18, the appearance of the cable main body 821 is omitted except for the base end, and only the axis is shown by a dashed line. Also, in Figures 4, 6, 8 and 9, only the base end of the cable main body 821 is shown. The operation cable 82 extending from the operation body 71 and the drive cable 81 extending from the upper end of the leg support 6 (the joint between the tabletop support bracket 631 and the upper housing 63) are connected to one end face 9a of the controller 9 in a state where they are bound by a common binder 83 at a gathering position P facing the one end face 9a, and the middle part of the drive cable 81 (the middle part of the tip cable part 813) is clamped between the controller 9 and the tabletop 7. In detail, in this embodiment, a single-column type leg support 6 is fixed to the center of the tabletop 7, and a lever-type operation body 71, for example, is provided near one side edge 7d on the usage end 7a side of the tabletop 7, and further, a controller 9 is provided on the opposite usage end 7b side of the tabletop 7. An assembly position P is set near one side edge 7d on the side opposite the use end 7b of the tabletop 7, and an operating cable 82 extending from the operating body 71 is guided to the assembly position P, while a drive cable 81 extending from the leg support 6 to the other side edge 7e of the tabletop 7 is made to make a U-turn and passed between the tabletop 7 and the controller 9 to be guided to the assembly position P.

[0027] The controller 9 is a rectangular parallelepiped long in the left-right direction, and as shown in Figs. 11 and 12, a cable guide groove 9x is formed on the top surface 9c of the controller 9, which is joined to the top plate 7, and extends from one end surface 9a to the other end surface 9b. The cable guide groove 9x is inserted through the middle portion of the drive cable 81 (the middle portion of the tip cable portion 813). As shown in Figs. 2, 4, 6, 9, 14, 15, 17, and 18, the controller 9 is provided with an operation cable connection terminal 9a2 for connecting the operation cable 82 and a drive cable connection terminal 9a1 for connecting the drive cable 81 on one end surface 9a, and a power supply terminal 9b1 for connecting the power supply cable 84 on the other end surface 9b. The power supply cable 84 is raised from the floor surface F side and supported by a mounting fixture 86 on the lower housing 61, which is a stationary member. The power cable 84 is led to the power terminal 9b1 of the controller 9 without being restrained by a movable member (middle housing 62 or upper housing 63) that is arranged to be movable up and down relative to a stationary member (lower housing 61).

[0028] As described above, this furniture T with a tabletop includes the left and right leg bases 1, the horizontal frames 2 and 3 connecting the left and right leg bases 1, the vertical frame 5 connected to the middle of the horizontal frames 2 and 3, and the tabletop 7 supported on the vertical frame 5 via the leg supports 6. As shown in Figs. 2 to 6, 8, 10, 13, and 14, the furniture T with a tabletop further includes a plurality of grounding bodies A1 and A2 in contact with the floor surface F. At least a pair of left and right grounding bodies A1 are provided in the horizontal frame 3 at a position between the leg bases 1 and the vertical frames 5. Specifically, the furniture T with a tabletop of this embodiment includes a pair of grounding bodies A1 provided on the rear horizontal frame 3 and a pair of grounding bodies A2 provided on the leg bases 1 at the tabletop use ends 7a side.

[0029] 2, 8, 13 and 14, the grounding body A1 provided on the horizontal frame 3 includes a base A11 whose upper end is rigidly connected to the horizontal frame 3, and an adjuster A12 screwed to the lower end of the base A11. The base A11 is made of, for example, sheet metal, and includes a pair of side plates A111 whose upper end is rigidly connected to the rear horizontal frame 3 by welding or the like, a rear plate A112 that closes the space between the rear edges of the side plates A111, and a bottom plate A113 that closes the space between the lower edges of the rear plate A112 and the side plate A111, and a nut A114 having a screw hole for screwing the adjuster A12 is rigidly connected to the bottom plate A113 by welding or the like. The upper ends of both side plates A111 are formed with notches A115 that engage with the lower and rear surfaces of the horizontal frame 3 from below, and are rigidly connected by welding or the like with the notches A115 engaged with the horizontal frame 3. An attachment plate A116 extends obliquely upward and rearward from the rear plate A112, and the rear frame portion 44 of the footrest 4 is fastened to this attachment plate A116 via rivets r2.

[0030] On the other hand, the grounding members A2 provided on the leg bases 1 are formed by screwing adjusters A22 to the bottom plate 14 provided on the top plate use end 7a side of the leg bases 1, and are provided on both the left and right leg bases 1.

[0031] Reference numeral 85 denotes a cord receiver detachably provided in the vicinity of the opposite end 7b of the top plate 7.

[0032] Here, FIG. 1 is an overall perspective view of the furniture with a top plate T of this embodiment from above. FIG. 2 is an overall perspective view of the furniture with a top plate T from below. FIG. 3 is a front view of the furniture with a top plate T. FIG. 4 is a right side view of the furniture with a top plate T. FIG. 5 is a rear view of the furniture with a top plate T. FIG. 6 is a left side view of the furniture with a top plate T. FIG. 7 is a plan view of the furniture with a top plate T. FIG. 8 is a bottom view of the furniture with a top plate T. FIG. 9 is a cross-sectional view taken along line AA in FIG. 3. FIG. 10 is a cross-sectional view taken along line BB in FIG. 3. FIG. 11 is a cross-sectional view taken along line CC in FIG. 9. FIG. 12 is a cross-sectional view taken along line DD in FIG. 11. In addition, in FIG. 11 and FIG. 12, the upper side of the furniture with a top plate T is shown as the upper side. FIG. 13 is an explanatory view showing the structure of the frame structure FK of the furniture with a top plate T, and more specifically, a right side view of the furniture with a top plate T with the right leg base removed. FIG. 14 is an exploded perspective view of the furniture with a top plate T. FIG. 15 is an exploded perspective view showing how the top plate 7 is attached to the leg support 6 and how the drive cable 81 and the operation cable 82 are arranged below the top plate 7. FIG. 16 is an explanatory diagram showing how the top plate-equipped furniture T is assembled, more specifically, how the leg support 6 is attached to the frame structure FK. FIG. 17 is an explanatory diagram showing how the operation cable 82 is arranged below the top plate 7. FIG. 18 is an explanatory diagram showing how the drive cable 81 is arranged below the top plate 7. FIG. 19 is an explanatory diagram showing how the power cable 84 is arranged and how the power cable 84 behaves when the top plate 7 is raised and lowered. In FIG. 3 to FIG. 6, FIG. 8, FIG. 9, and FIG. 19, the distal cable portion 813 of the drive cable 81 and the distal end portion of the operation cable 821 are omitted.

[0033] With this configuration, the tabletop use end side 7a of the leg base 1 is lowered, and coupled with the leg support 6 being a single-column type, it becomes easy for the user to put his / her legs in and out of the lower limb space without getting his / her feet caught on the leg support 6 or the leg base 1. Moreover, since the footrest 4 is inclined in the same direction, not only can the feet placed on it be prevented from sliding toward the tabletop opposite use end 7b, but it also encourages the user to take a backward leaning posture, making it possible to provide a comfortable desk work environment while preventing hunched postures, etc. In addition, since the footrest 4 is disposed in an inclined posture between the left and right leg bases 1 with the upper surfaces 1a of the left and right leg bases 1 protruding above the upper surfaces 4a of the footrest 4, even if the user's feet slide sideways on the footrest 4, they will be caught on the leg base 1 when they reach the side end of the footrest 4, so it is also possible to prevent the user's feet from protruding outside the leg base 1.

[0034] In addition, in this furniture T with a tabletop, the peripheral wall surface 32 of the rear horizontal frame 3 and the peripheral wall surface 53a of the vertical frame 5 are rigidly connected in a surface contact state, so that the length of the vertical frame 5 can be set as long as possible, and it is possible to ensure a wide joint area by welding, etc. Therefore, a frame structure with high rigidity can be constructed.

[0035] Furthermore, the front horizontal frame 2 located at the tabletop use end side 7a is disposed at a lower position than the rear horizontal frame 3 located at the tabletop opposite use end 7b, and the end face 5a at one end of the vertical frame 5 is rigidly connected to the rearward peripheral wall surface of the front horizontal frame 2, while the peripheral wall surface 53a at the other end of the vertical frame 5 is rigidly connected to the downward peripheral wall surface 32 of the rear horizontal frame 3, so that a three-dimensional frame structure with high rigidity can be constructed. That is, according to this configuration, not only is a frame structure formed along an inclined first plane by the vertical frame 5 and the front and rear horizontal frames 2, 3, but also the vertical frame 5 is disposed along a horizontal second plane, so that both side ends of the front and rear horizontal frames 2, 3 are rigidly connected to the outer walls 12 of the leg base 1, and thus a triangle is formed with the vertical frame 5, the rear horizontal frame 3, and the leg base 1 as three sides in a side view. Therefore, compared to a case where both end faces of the vertical frame 5 are rigidly connected to the rearward peripheral wall surface 24 of the front horizontal frame 2 and the forward peripheral wall surface 33 of the rear horizontal frame 3 and these are joined in a plane, the rigidity against bending the vertical frame 5 in the up-down direction is higher. In other words, a triangular frame structure is realized in a side view, and a structure that is less susceptible to distortion than a simple one-sided frame structure can be constructed. Therefore, the rocking of the leg supports 6 and the tabletop 7 supported by the vertical frame 5 can be effectively suppressed, and the overall rigidity can be improved naturally.

[0036] In addition, a gap S is formed between the front horizontal frame 2 and the floor surface F, allowing the user's feet to enter, so that even if the front horizontal frame 2 is positioned as close to the use end 7a as possible to increase the frame rigidity, the lower leg space can be effectively secured, resulting in good usability. In particular, the vertical frame 5 is rigidly connected to the rearward peripheral wall surface 24 of the front horizontal frame 2, and the vertical frame 5 does not protrude below the lower end of the front horizontal frame 2, so that even if the user inserts their feet under this horizontal frame 2 and moves them left and right, they will not interfere with the vertical frame 5.

[0037] Furthermore, in this embodiment, each leg base 1 is made hollow and has an inner wall 11 and an outer wall 12, and each horizontal frame 2, 3 is made square pipe-like with both ends penetrating the inner wall 11 of the corresponding leg base 1 and rigidly connected to the outer wall 12, so that the connection strength between the left and right leg bases 1 and the front and rear horizontal frames 2, 3 can be reasonably increased.

[0038] In this embodiment, the vertical frame 5 and the leg support 6 are screwed together at right angles, and the end face of the leg base 1 on the opposite end 7b side, i.e., the rear end face 1b, is formed parallel to the leg support 6, so that as described above, it is easy to assemble using the storage box BX. That is, according to this configuration, when the leg base 1 is erected with the rear end face 1b in contact with the floor surface F, the vertical frame 5 stands vertically. Therefore, as long as the thickness dimension t of the storage box BX is appropriately set in advance, the leg support 6 laid on the storage box BX can be easily bolted to the vertical frame 5. Therefore, the assembly work after delivery is easy, and it is suitable for use at home, etc.

[0039] Furthermore, in this embodiment, the operation cable 82 extending from the operation body 71 and the drive cable 81 extending from the upper end of the leg support 6 are each guided to one end surface 9a of the controller 9 in a bundled state at a gathering position P facing one end surface 9a of the controller 9. Therefore, the position where the operation cable 82 and the drive cable 81 are gathered is clear, there is no confusion in the wiring work, and the area under the tabletop does not become messy. Moreover, since both cables 81, 82 are bundled with a common binder 83 at the gathering position P, the man-hours for bundling can be reduced compared to the case where each cable is separately fastened to the tabletop at multiple positions, and the types and number of parts for holding the wiring can be reasonably reduced. Furthermore, since one of the cables, which tends to be long, i.e., in this embodiment, the drive cable 81, is clamped halfway between the controller 9 and the top plate 7, even by binding both cables 81, 82 only with the common binding device 83 or with the common binding device and a small number of auxiliary binding devices, it is possible to effectively prevent these cables 81, 82 from swinging or sagging.

[0040] In particular, in this embodiment, in which the single-column type leg support 6 is fixed to the center of the tabletop 7, the operation body 71 is provided near one edge 7d of the use end 7a of the tabletop 7, and the controller 9 is provided on the opposite end 7b of the tabletop 7, the above-mentioned effect can be significantly achieved by setting the collection position P near one side of the opposite end 7b of the tabletop 7 as described above, and guiding the operation cable 82 extending from the operation body 71 to the collection position P, and guiding the drive cable 81 extending from the leg support 6 to the other edge 7e of the tabletop 7 to the collection position P through a gap between the tabletop 7 and the controller 9. That is, with this arrangement, the operation cable 82 extending from the operation body 71 toward the collection position P can be arranged in a substantially straight line, and the drive cable 81, which tends to be long and is led out from the leg support 6, can be sandwiched between the controller 9 and the tabletop 7 for stable support. Therefore, even if only a single common binder 83 is used, the cables 81, 82 can be arranged neatly and stably below the top plate 7.

[0041] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention.

[0042] For example, the leg support is not limited to a single-pillar type, and the tabletop may be supported by a plurality of leg supports that extend and retract in synchronism with one another.

[0043] In addition, the illustrated example of the operating body is a lever type, and by operating the lever upward, an operating signal is output in the direction in which the leg support extends, and by operating the lever downward, an operating signal is output in the direction in which the leg support retracts, but the configuration is not necessarily limited to this. In short, the operating body may be of any type as long as it can selectively output an operating signal for raising the tabletop or an operating signal for lowering the tabletop when operated by the user.

[0044] The controller may be any type that can operate the electric actuator forward and reverse based on an operation signal from the operating body. Furthermore, the configurations and positions of the connection terminals for connecting the operation cable, drive cable, and power cable are not limited to those shown in the figures.

[0045] The common binder described above includes a band portion that detachably binds the operation cable and the drive cable in a wound state, and a mounting plate portion that attaches the band portion to the underside of the tabletop, but is not necessarily limited to this. In addition, instead of using a common binder to detachably bind the operation cable and the drive cable in a wound state, a binder for the operation cable and a binder for the drive cable may be provided separately and adjacent to each other at the gathering position.

[0046] Furthermore, in the illustrated embodiment, a case has been described in which a cable guide groove is provided on the upper surface of the controller, but the cable guide groove may also be provided on the underside of the tabletop. Alternatively, cable guide grooves may be provided on both the upper surface of the controller and the underside of the tabletop. In this case, the lower half of the drive cable can be fitted into the cable guide groove of the controller, and the upper half can be fitted into the cable guide groove of the tabletop. In this way, it is also possible to position the controller with respect to the tabletop by the drive cable. The cable clamped between the controller and the tabletop is not limited to the drive cable, and may be an operation cable.

[0047] The manner in which the power cable that supplies power to the controller is guided is not limited to that shown in the example, but if configured as in the example shown, no excessive force will be applied when the leg supports are contracted or extended, and the power cable can be guided in an orderly manner that looks good.

[0048] In addition, various modifications may be made without departing from the spirit of the present invention. [Explanation of symbols]

[0049] T…Furniture with a tabletop 6…Leg support 61...Stationary member (lower housing) 62... Movable member (middle housing) 63... Movable member (upper housing) 63b…Top of leg support 7…Tabletop 7a…Used end 7b…Anti-use end 7c…Underside of tabletop 7d...One side edge of the tabletop 71...Operation body 81...Drive cable 82…Operation cable 83…Common binding tool 9. Controller 9a...One end face of the controller 9a1…Drive cable connection terminal 9a2…Operation cable connection terminal 9b...other end face of controller 9b1…Power terminal 9x…Cable guide grooves P...Meeting position F…Floor surface

Claims

1. The tabletop is provided on its underside with an upper end of a leg support for electrically raising and lowering the tabletop, an operating body for commanding the raising or lowering of the tabletop by an operating signal, and a controller for receiving the operating signal from the operating body through an operating cable and transmitting a drive signal corresponding to the operating signal to the tabletop through the drive cable. the operation cable extending from the operation body and the drive cable extending from an upper end of the leg support are connected to one end surface of the controller in a bundled state at a gathering position facing the one end surface of the controller, At least one of the operation cable and the drive cable is clamped between the controller and the top plate.

2. 2. The furniture with a top according to claim 1, wherein the operation cable and the drive cable are bound together at the gathering position by a common binding device.

3. A single-column type leg support is fixed to the center of the tabletop, the operation body is provided near one side edge of the tabletop at the use end, and the controller is provided on the opposite side of the tabletop, 3. Furniture with a tabletop as described in claim 1 or 2, wherein the assembly position is set near one side edge of the tabletop opposite the end used, the operation cable extending from the operating body is guided to the assembly position, and the drive cable extending from the leg support to the other side edge of the tabletop is passed between the tabletop and the controller and guided to the assembly position.

4. 4. The furniture with a tabletop according to claim 3, wherein a cable guide groove is formed in at least one of the joint surfaces between the tabletop and the controller, the groove continuing from one end surface to the other end surface of the controller.

5. 5. Furniture with a tabletop as described in claim 3 or 4, wherein the controller has, on one end surface thereof, an operation cable connection terminal for connecting the operation cable, and a drive cable connection terminal for connecting the drive cable, and, on the other end surface thereof, a power supply terminal for connecting a power supply cable.

6. The leg support includes a stationary member supported on a floor surface and a movable member that is movable up and down relative to the stationary member and supports the tabletop at its upper end, 6. The furniture with a tabletop according to claim 5, wherein a power cable extending from the floor surface side is supported by the stationary member and is not restrained by the movable member and is led to a power terminal of the controller.

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