JP7619154B2 - Furniture with tabletop - Google Patents

Description

The present invention relates to furniture with a top that can be raised and lowered electrically.

Recently, as part of work style reforms and the like, various furniture pieces with tabletops have been developed that allow users to freely choose between sitting, standing, and other positions by adjusting the height of the tabletop (see, for example, Patent Document 1).

Among this type of furniture with a tabletop, a relatively simple design consists of, for example, 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 through an operating cable and transmits a drive signal corresponding to the operating signal to the tabletop through a drive cable, and the operating cable and drive cable are often attached to the underside of the tabletop.

However, if the cables mentioned 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.

Design Registration No. 1584624

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.

The invention described in claim 2 aims to route cables under the tabletop without the need for numerous ties or wiring ducts, in addition to the problem described above.

The furniture with a tabletop according to the invention described in claim 1 comprises, 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 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 leg support through the drive cable, the operating cable extending from the operating body and the drive cable extending from the upper end of the leg support being connected to one end face of the controller in a bundled state at a gathering position facing the one end face, and at least one of the operating cable and the drive cable is clamped between the controller and the tabletop.

The furniture with a tabletop according to the invention described in claim 2 is the furniture described in claim 1, in which the operating cable and the drive cable are tied together at the gathering position by a common tie.

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

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

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

The furniture with a tabletop according to the invention described in claim 6 is the furniture described in claim 5, and the leg support includes 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 the 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.

According to the invention described in claim 1, cables can be routed on the underside of the tabletop without making the underside of the tabletop cluttered.

According to the invention described in claim 2, in addition to the effect described above, it is also possible to route cables under the top plate without the need for numerous ties or wiring ducts.

1 is an overall perspective view showing a furniture with a tabletop according to an embodiment of the present invention; FIG. 2 is an overall perspective view showing the furniture with a tabletop according to the embodiment. FIG. 2 is a front view showing the furniture with a tabletop according to the embodiment. FIG. 4 is a right side view showing the furniture with a tabletop according to the embodiment. FIG. 4 is a rear view showing the furniture with a tabletop according to the embodiment. FIG. 2 is a left side view showing the furniture with a tabletop according to the embodiment. FIG. 2 is a plan view showing the furniture with a tabletop according to the embodiment. FIG. 4 is a bottom view showing the furniture with a tabletop according to the embodiment. FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a cross-sectional view taken along line BB in FIG. 10 is a cross-sectional view taken along line CC in FIG. 9 . 12 is a cross-sectional view taken along line DD in FIG. 11 . FIG. 4 is a diagram showing a frame structure of the furniture with a tabletop according to the embodiment. FIG. 2 is an exploded perspective view showing the furniture with a tabletop according to the embodiment. FIG. 2 is an exploded perspective view showing the furniture with a tabletop according to the embodiment. 4A to 4C are diagrams showing an assembly mode of the furniture with a tabletop according to the embodiment. FIG. 4 is an explanatory diagram showing the arrangement of operation cables according to the embodiment. FIG. 4 is an explanatory diagram showing the arrangement of drive cables according to the embodiment; FIG. 2 is an exploded perspective view showing the furniture with a tabletop according to the embodiment.

One embodiment of the present invention will be described below with reference to Figures 1 to 19.

This embodiment shows the application of the present invention to furniture T with a tabletop, such as a single-leg desk.

As shown in Figures 1 to 10 and 14, this furniture with a tabletop T comprises left and right leg bases 1, front and rear horizontal frames 2, 3 connecting the leg bases 1 together, a footrest 4 arranged on the horizontal frames 2, 3, a vertical frame 5 connecting the middle parts of the horizontal frames 2, 3 together, a single-column 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 rise gradually and continuously from the use end 7a of the tabletop 7 toward the opposite use end 7b 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.

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 whose both ends penetrate the inner wall 11 of the corresponding leg base 1 and are rigidly connected to the outer wall 12. In more detail, the leg base 1 is a channel-shaped 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 to 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 tabletop use end 7a.

As shown in Figures 2, 8, 10, 13 and 14, the front horizontal frame 2 located on the usable end 7a side of the tabletop 7 is positioned lower than the rear horizontal frame 3 located on the opposite usable end 7b side of the tabletop 7, and the end face 5a at one end (front end) of the vertical frame 5 is rigidly connected to the rearward facing peripheral wall surface 24 of the front horizontal frame 2, and the peripheral wall surface 33a at the other end of the vertical frame 5 is rigidly connected to the downward facing 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, and a front peripheral wall surface 23 and a rear peripheral wall surface 24 that are perpendicular to the upward and downward peripheral wall surfaces 21 and 22, respectively, and one end surface (front end surface 5a) of the vertical frame 5 is rigidly connected to the rear 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 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 has a rectangular cross section, 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 (downward peripheral wall surface 32) of the rear horizontal frame 3 and the peripheral wall surface (upward peripheral wall surface 53a) at the rear end of the vertical frame 5 are rigidly connected in surface contact. In other words, the rear horizontal frame 3 and the rear end of the vertical frame 5 cross in an overlapping state in a plan view, and are joined to each other in this perpendicular position. The vertical frame 5 is a channel-shaped unit that includes left and right side walls 51, 52, an upper wall 53 that closes the upper edges of both side walls 51, 52, and a rear wall 54 that closes the rear ends of both side walls 51, 52.

As shown in Figures 1 to 3, 5, 8, 10, 13 and 14, the footrest 4 is mounted on the front and rear horizontal frames 2, 3 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. More specifically, the footrest 4 is integrally comprised of a footrest 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 body 41 along the inner wall 11 of the leg base 1, a front frame portion 43 attached to the front edge of the footrest body 41 and wrapping around the front side of the front horizontal frame 2, and a rear frame portion 44 attached to the rear edge of the footrest body 41 and wrapping around the rear side of the rear horizontal frame 3, and the hanging plate 42 is fastened to the inner wall 11 of the leg base 1 using rivets r.

As shown in Figures 3, 5, 10 and 13, a gap S is formed between the front horizontal frame 2 and the floor surface F, allowing the user's feet to enter. The front end surface 5a of the vertical frame 5 is joined to the rearward 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.

On the other hand, the leg support 6 is attached to the upper surface of the vertical frame 5, i.e., the upward peripheral wall surface 53a, by a bolt 64 inserted from the bottom side, as shown in Figures 10 and 16. More specifically, as shown in Figures 10, 15 and 19, the leg support 6 is configured to combine a lower housing 61, a middle housing 62 and an upper housing 63 in a telescopic manner, and to extend and retract these housings 61, 62 and 63 by an internal electric actuator (not shown). The lower end of the lower housing 61 is provided with an attachment portion 611, and a top plate support bracket 631 is fixed to the upper end of the upper housing 63. The attachment portion 611 is formed 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 abutting against 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 collection position P and connected to a drive terminal 9a1 of the controller 9. 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 connection 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 is omitted.

In this embodiment, the end surface of the leg base 1 on the opposite end 7b of the tabletop, 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, the leg support 6 can be easily screwed to the vertical frame 5 simply by setting the thickness dimension t of the storage box BX that stores the frame structure FK including the leg base 1, horizontal frames 2, 3, and vertical frame 5 to a predetermined value. To be more specific, if the frame structure FK is configured as described above, the frame structure FK can be kept upright with the vertical frame 5 vertically oriented by simply taking some kind of fall prevention measure with the rear end surface 1b of the leg base 1 in contact with the floor surface F. In this state, when the aforementioned storage box BX is slid along the floor surface F with the leg support 6 lying on its upper surface, the lower end of the leg support 6 (the lower end 61a of the lower housing 61) can be brought closer to the upper surface (the upward peripheral wall surface 53a) of the vertical frame 5 in a perpendicular position. 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 are approximately aligned when approaching, the leg support 6 can be screwed to the vertical frame 5 without lifting a heavy part.

The tabletop 7 is rectangular in 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 the upper end of the leg supports 6 (tabletop support bracket 631) for electrically raising and lowering the tabletop 7, an operating body 71 for commanding the raising or lowering of the tabletop 7 by an operating signal, and a controller 9 that receives an operating signal from the operating body 71 through an operating cable 82 and transmits 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 portion of the drive cable 81 (the middle portion of the tip cable portion 813) is clamped between the controller 9 and the tabletop 7. In more detail, in this embodiment, a single-column type leg support 6 is attached 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. A collection position P is set near one side edge 7d on the side opposite the end 7b of the tabletop 7, and the operating cable 82 extending from the operating body 71 is guided to the collection position P, while the 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, leading to the collection position P.

The controller 9 is a rectangular parallelepiped long in the left-right direction, and as shown in Figures 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 middle portion of the drive cable 81 (the middle portion of the tip cable portion 813) is inserted into the cable guide groove 9x. As shown in Figures 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 the movable member (middle housing 62 or upper housing 63) that is arranged to be movable up and down relative to the stationary member (lower housing 61).

As described above, this furniture with a tabletop T includes left and right leg bases 1, horizontal frames 2 and 3 connecting the left and right leg bases 1, a vertical frame 5 connected to the middle of the horizontal frames 2 and 3, and a tabletop 7 supported on the vertical frame 5 via leg supports 6. In addition, as shown in Figures 2 to 6, 8, 10, 13, and 14, the furniture with a tabletop T includes a plurality of grounding bodies A1 and A2 that contact 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 with a tabletop T 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.

2, 8, 13 and 14, the grounding body A1 provided on the horizontal frame 3 includes a base A11 rigidly connected at its upper end 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 rigidly connected at their upper ends 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. 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. At the upper ends of both side plates A111, notches A115 are formed that engage with the lower and rear surfaces of the horizontal frame 3 from below, and are rigidly connected by welding or the like while the notches A115 are engaged with the horizontal frame 3. From the rear plate A112, an attachment plate A116 extends diagonally upward and rearward, and the rear frame portion 44 of the footrest 4 is fastened to this attachment plate A116 via rivets r2.

On the other hand, the grounding body A2 provided on the leg base 1 is formed by screwing an adjuster A22 to the bottom plate 14 provided on the top plate use end 7a side of the leg base 1, and is provided on each of the left and right leg bases 1.

In addition, 85 is a detachable cord holder located near the opposite end 7b of the top plate 7.

Here, FIG. 1 is an overall perspective view from above of the furniture with a top plate T of this embodiment. FIG. 2 is an overall perspective view from below. FIG. 3 is a front view of the same. FIG. 4 is a right side view of the same. FIG. 5 is a rear view of the same. FIG. 6 is a left side view of the same. FIG. 7 is a plan view of the same. FIG. 8 is a bottom view of the same. FIG. 9 is a cross-sectional view taken along line A-A in FIG. 3. FIG. 10 is a cross-sectional view taken along line B-B in FIG. 3. FIG. 11 is a cross-sectional view taken along line C-C in FIG. 9. FIG. 12 is a cross-sectional view taken along line D-D in FIG. 11. Note that in FIGS. 11 and 12, the upper side of the furniture with a top plate T is shown as the upper side. FIG. 13 is an explanatory diagram 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 the manner in which the top plate 7 is attached to the leg support 6 and the arrangement of the drive cable 81 and the operation cable 82 under the top plate 7. FIG. 16 is an explanatory diagram showing the assembly manner of the furniture T with a top plate, more specifically, the manner in which the leg support 6 is attached to the frame structure FK. FIG. 17 is an explanatory diagram showing the arrangement of the operation cable 82 under the top plate 7. FIG. 18 is an explanatory diagram showing the arrangement of the drive cable 81 under the top plate 7. FIG. 19 is an explanatory diagram showing the arrangement of the power cable 84 and the behavior of the power cable 84 when the top plate 7 is raised and lowered. Note that in FIGS. 3 to 6, 8, 9, and 19, the tip cable portion 813 of the drive cable 81 and the tip portion of the operation cable 821 are omitted.

With this configuration, the tabletop use end side 7a of the leg base 1 is lowered, and combined with the leg support 6 being a single-column type, it becomes easier for the user to put their legs in and out of the lower leg space without getting their 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 backwards 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 get 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 sticking out beyond the leg base 1.

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 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. This makes it possible to construct a frame structure with high rigidity.

Furthermore, the front horizontal frame 2 located on the tabletop use end side 7a is arranged at a lower position than the rear horizontal frame 3 located on 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, and 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, since the vertical frame 5 is arranged along a horizontal second plane, both side ends of the front and rear horizontal frames 2, 3 are rigidly connected to the outer wall 12 of the leg base 1, a triangle is formed in side view with the vertical frame 5, the rear horizontal frame 3, and the leg base 1 as three sides. Therefore, compared to a structure in which 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 then joined in a plane, the rigidity of the vertical frame 5 against bending in the vertical direction is increased. In other words, a triangular frame structure is realized when viewed from the side, making it possible to construct a structure that is less susceptible to distortion than a simple one-sided frame structure. This effectively suppresses the rocking of the leg supports 6 and the tabletop 7 supported by the vertical frame 5, and makes it possible to naturally improve the overall rigidity.

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 even if the front horizontal frame 2 is positioned as close to the use end 7a as possible to increase 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-facing 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. Therefore, even if the user inserts their feet under this horizontal frame 2 and moves them left and right, there is no interference with the vertical frame 5.

Furthermore, in this embodiment, each leg base 1 is made hollow with an inner wall 11 and an outer wall 12, and each horizontal frame 2, 3 is made square pipe-shaped with both ends penetrating the inner wall 11 of the corresponding leg base 1 and rigidly connected to the outer wall 12, so the connection strength between the left and right leg bases 1 and the front and rear horizontal frames 2, 3 can be increased without difficulty.

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, with this configuration, when the leg base 1 is erected with the rear end face 1b abutting 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. This makes assembly easy after delivery, and is suitable for use at home, etc.

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 bottom of the tabletop does not become messy. Moreover, since both cables 81, 82 are bundled with a common binding tool 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, one of the cables, which tends to be long, i.e., in this embodiment, the drive cable 81, is clamped midway between the controller 9 and the top plate 7, so even if both cables 81, 82 are bound only by the common binding device 83, or by 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.

In particular, in this embodiment, in which a single-column type leg support 6 is attached to the center of the tabletop 7, an operating body 71 is provided near one edge 7d of the tabletop 7 on the use end 7a side, and a controller 9 is provided on the opposite end 7b side of the tabletop 7, the above-mentioned effect can be significantly achieved by setting the assembly position P near one side of the opposite end 7b side of the tabletop 7, and guiding the operating cable 82 extending from the operating body 71 to the assembly position P, and guiding the drive cable 81 extending from the leg support 6 to the other edge 7e side of the tabletop 7 to the assembly position P. In other words, with this arrangement, the operating cable 82 heading from the operating body 71 toward the assembly 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 binding device 83 is used, the cables 81 and 82 can be arranged neatly and stably below the top plate 7.

The present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention.

For example, the leg support is not limited to a single-pillar type, and the tabletop may be supported by multiple leg supports that extend and retract in sync.

The operating body in the illustrated example is a lever type, and by operating the lever upwards, an operating signal is output in the direction in which the leg support extends, and by operating the lever downwards, 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 so 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.

The controller may be any type that can operate the electric actuator forward and reverse based on an operating signal from the operating body. Furthermore, the configuration and arrangement of the connection terminals for connecting the operating cable, drive cable, and power cable are not limited to those shown in the illustrated example.

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.

In addition, in the illustrated embodiment, a cable guide groove is provided on the upper surface of the controller, but the cable guide groove may 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 relative to the tabletop using the drive cable. The cable clamped between the controller and the tabletop is not limited to the drive cable, but may be an operation cable.

The guidance of the power cable that supplies power to the controller is not limited to that shown in the example, but if configured as in the example shown, the power cable can be guided neatly and with a good appearance without excessive force being applied when the leg supports are retracted or extended.

Various other modifications may be made without departing from the spirit of the present invention.

T... Furniture with a tabletop 6... Leg support 61... Stationary member (lower housing)
62... Movable member (middle housing)
63... Movable member (upper housing)
63b...Upper end of leg support 7...Tabletop 7a...Usage end 7b...Non-usage end 7c...Underside of tabletop 7d...One side edge of tabletop 71...Operation body 81...Drive cable 82...Operation cable 83...Common binder 9...Controller 9a...One end surface of controller 9a1...Drive cable connection terminal 9a2...Operation cable connection terminal 9b...Other end surface of controller 9b1...Power supply terminal 9x...Cable guide groove P...Gathering position F...Floor surface

Claims (6)

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. The furniture with a top according to claim 1, wherein the operating cable and the drive cable are tied together at the gathering position by a common tie. 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. The furniture with a tabletop according to claim 3, wherein a cable guide groove is formed on at least one of the joint surfaces between the tabletop and the controller, the groove continuing from one end surface of the controller to the other end surface of the controller. The furniture with a tabletop according to claim 3 or 4, wherein the controller has an operation cable connection terminal for connecting the operation cable on one end surface, a drive cable connection terminal for connecting the drive cable, and a power terminal for connecting a power cable on the other end surface. 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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