JP7615875B2 - Furniture with tabletop - Google Patents

Description

The present invention relates to furniture with a tabletop that can be equipped with optional components in a position that can be changed.

Furniture with a tabletop that allows optional components such as a cord holder to be attached to the end of the tabletop opposite the end of use so that the position can be changed is known (see, for example, Patent Document 1).

The furniture with a tabletop has, for example, a number of fastening points for mounting options on the opposite end of the tabletop, and by selectively mounting optional components to these fastening points, the optional components can be arranged in different positions and attitudes.

However, if there are two different mounting positions and two different fastening points for the optional parts, the user may be confused as to where and in what position the optional parts should be mounted, and the structure of the fastening points for detachably mounting the optional parts tends to become complicated.

And while there is a demand for even more diverse mounting positions, increasing the number of mounting positions under this configuration would mean simultaneously increasing the number of fastening points, which would exacerbate confusion during assembly.

JP 2010-63663 A

The present invention was made with this in mind, and aims to provide furniture with a tabletop that can effectively solve the above-mentioned problems by allowing any of the multiple mounting surfaces of a multi-functional component to be selectively fastened to one common fastening point.

The furniture with a tabletop according to the invention described in claim 1 comprises a tabletop having a common fastening point at a fixed position, and a multifunctional member having three or more mounting surfaces that can be fastened to the common fastening point of the tabletop, and that can be selectively attached to the tabletop in three or more positions by selectively fastening one of the mounting surfaces to the common fastening point.

The furniture with a tabletop according to the invention of claim 2 is the furniture with a tabletop according to claim 1, in which the common fastening point is set at the end opposite to the use of the tabletop, the multifunctional member has three mounting surfaces, and the multifunctional member is configured so that it can selectively take one of a cord receiving position, a tabletop extension position, and a shelf position by fastening one of the mounting surfaces to the common fastening point.

The furniture with a tabletop according to the invention of claim 3 is the furniture with a tabletop according to claim 2, in which the multi-function member comprises an attachment part having three attachment surfaces, a base plate whose base edge is supported by the attachment part, and a tip plate extending perpendicularly from the tip edge of the base plate, the cord receiving position is a position in which a cord guide groove is formed with the base plate as the base between the end face opposite to the use of the tabletop and the tip plate, the tabletop extension position is a position in which one surface of the base plate is continuous and flush with the top surface of the tabletop, and the shelf position is a position in which the tip plate is arranged parallel to and spaced apart from the top surface of the tabletop.

The invention of claim 4 relates to furniture with a tabletop, which is the furniture of claim 3, in which the mounting portion is integrally provided with a first mounting plate parallel to the base plate and a second mounting plate facing the tip plate and connected to the base edge of the base plate, and the mounting surface is formed on at least one surface of the first and second mounting plates.

The invention of claim 5 relates to furniture with a top, which is the furniture of claim 4, and is configured so that the multi-function member is in the cord receiving position by fastening an attachment surface set on one side of the first attachment plate to the common fastening point.

The furniture with a tabletop according to claim 6 is the furniture with a tabletop according to claim 4, in which the length dimension of the second mounting plate is set equal to the thickness dimension of the tabletop, and the multi-function member is configured to be in the tabletop extension position by fastening the mounting surface set on the other side of the first mounting plate to the common fastening point.

The invention of claim 7 relates to furniture with a tabletop according to claim 4, in which the length dimension of the base plate is set to be greater than the thickness dimension of the tabletop, and the multi-function member is configured to assume the shelf position by fastening an attachment surface set on one side of the second attachment plate to the common fastening point.

The invention of claim 8 relates to furniture with a tabletop according to claim 1, 2, 3, 4, 5, 6 or 7, in which the tabletop has a plurality of common fastening points, and is configured so that the multi-function members, which are independent of each other, can be fastened to each of the common fastening points.

The present invention is configured so that there is one type of common fastening point provided on the top plate side, and one of three or more mounting surfaces provided on the multi-function member is selectively attached to this common fastening point, so that each mounting surface of the multi-function member can be matched one-to-one with each mounting position, thereby resolving all of the above-mentioned problems.

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. 11A and 11B 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. FIG. 4 is an exploded perspective view showing a manner in which the multifunction member is attached to the top plate according to the embodiment. FIG. 4 is a cross-sectional side view of a main part showing a manner in which the multi-function member is attached to the top plate according to the embodiment. FIG. 4 is an overall perspective view of the multi-function member according to the embodiment in a cord receiving position. 23 is a cross-sectional view taken along line XX in FIG. 22. FIG. 13 is an overall perspective view of the multi-function member according to the embodiment in a state where the tabletop is in an extended position. 25 is a cross-sectional view taken along line YY in FIG. 24. FIG. 4 is an overall perspective view of the multi-function member according to the embodiment in a shelf position. This is a cross-sectional view taken along line ZZ in Figure 26.

One embodiment of the present invention will be described below with reference to Figures 1 to 27.

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, a multi-function member 85 is detachably provided on the opposite end of the tabletop 7 (the area near the opposite end 7b) and can be selectively placed in one of the cord receiving position (Q), tabletop extension position (R), and shelf position (S), as shown in Figures 20 to 27.

In more detail, as shown in Figures 20 to 27, this furniture with a tabletop T is equipped with a tabletop 7 having a common fastening point 72 at a fixed position, and a multi-functional member 85 having three mounting surfaces 85a, 85b, and 85c that can be fastened to the common fastening point 72 of the tabletop 7, and that can be selectively attached to the tabletop 7 in three different positions by selectively fastening one of the mounting surfaces 85a, 85b, and 85c to the common fastening point 72.

As shown in Figures 20, 21, 23, 25, and 27, the common fastening point 72 is set on the underside 7c of the top plate 7 near the end opposite the use end 7b, and is formed by embedding multiple eye nuts 73 in the underside 7c of the top plate 7.

20, 21, 23, 25 and 27, the multi-function member 85 has three mounting surfaces 85a, 85b, 85c, and is configured so that the multi-function member 85 can selectively take one of the cord receiving position (Q) shown in Figs. 20 to 23, the top plate extension position (R) shown in Figs. 24 and 25, and the shelf position (S) shown in Figs. 26 and 27 by fastening any one of the mounting surfaces 85a, 85b, 85c to the common fastening point 72. Specifically, the multi-function member 85 has a mounting portion 851 having three mounting surfaces 85a, 85b, 85c, a base plate 852 whose base edge is supported by the mounting portion 851, and a tip plate 853 extending perpendicularly from the tip edge of the base plate 852, as shown in Figs. 20, 21, 23, 25 and 27. The cord receiving position (Q) is a position as shown in Figs. 20 to 23, in which a cord guide groove 85m with the base plate 852 as the bottom is formed between the opposite end surface of the top plate 7 (the surface including the opposite end 7b) and the tip plate 853. The top plate extension position (R) is a position as shown in Figs. 24 and 25, in which one surface (outer surface 852a) of the base plate 852 is flush with the upper surface 7f of the top plate 7. The shelf position (S) is a position as shown in Figs. 26 and 27, in which the tip plate 853 is arranged parallel to and spaced from the upper surface 7f of the top plate 7.

As shown in Figures 20, 21, 23, 25 and 27, the mounting portion 851 is integrally provided with a first mounting plate 854 parallel to the aforementioned base plate 852 and a second mounting plate 855 facing the tip plate 853 and connected to the base edge of the base plate 852, and mounting surfaces 85a, 85b, and 85c are formed on the first and second mounting plates 854 and 855. Specifically, the mounting surface 85a for the cord receiving position (Q) is formed on one surface of the first mounting plate 854, and the mounting surface 85b for the top plate extension position (R) is formed on the other surface. In addition, the mounting surface 85c for the shelf position (S) is formed on one surface of the second mounting plate 855. As shown in Figs. 20, 21 and 23, the mounting surface 85a for the cord receiving position (Q) set on one surface of the first mounting plate 854 is fastened to the common fastening point 72, so that the multi-function member 85 is configured to be in the cord receiving position (Q). In the cord receiving position (Q), the first mounting plate 854 is fastened in a state of being in close contact with the lower surface 7c of the top plate 7, and the surface including the opposite end 7b of the top plate 7 and one surface of the second mounting plate 855 (the inner surface, i.e., the mounting surface 85c for the shelf position (S)) are substantially continuous to form a vertical surface. In this cord receiving position (Q), as shown in Figs. 22 and 23, a cord guide groove 85m is formed with the base plate 852 as the bottom between the surface including the opposite end 7b of the top plate 7 and the inner surface 853b of the tip plate 853. This cord guide groove 85m is open upward and on both the left and right sides, so that it can guide and hold various cords such as power lines and communication lines and outlets. As shown in FIG. 20, the left-right length L1 of the first and second mounting plates 854, 855 that make up the mounting portion 851 is set to be shorter than the left-right length L2 of the base plate 852 and the tip plate 853, allowing the cord to be smoothly guided in and out between the cord guide groove 85m and the space below the top plate 7.

As shown in FIG. 25, the length dimension L3 of the second mounting plate 855 is set equal to the thickness dimension t1 of the tabletop 7, and the mounting surface 85b for the tabletop extended position (R) set on the other surface of the first mounting plate 854 is fastened to the common fastening point 72, so that the multi-function member 85 is configured to be in the tabletop extended position (R) as shown in FIG. 24 and FIG. 25. According to the dimension setting for realizing the tabletop extended position (R), the outer surface 852a of the substrate 852 of the multi-function member 85 is flush with the upper surface 7f of the tabletop 7, and the tabletop surface is substantially expanded. In this tabletop extended position (R), slits SS are formed between the tabletop 7 and both ends of the substrate 852 where the mounting portion 851 does not exist, as shown in FIG. 24. These slits SS are for inserting clamps used when attaching options such as lighting to the vicinity of the opposite end 7b of the tabletop 7.

Furthermore, as shown in FIG. 27, the length dimension L4 (the vertical dimension in the figure) of the base plate 852 is set to be greater than the thickness dimension t1 of the top plate 7, and the mounting surface 85c for the shelf position (S) set on one side of the second mounting plate 855 is fastened to the common fastening point 72, so that the multi-function member 85 is configured to be in the shelf position (S) as shown in FIG. 26 and FIG. 27. That is, in the shelf position (S), the tip plate 853 is positioned horizontally with a space SP remaining on the top plate 7, and it is possible to place and use items, documents, etc. on both the outer surface 853a of the tip plate 853 and the upper surface 7f of the top plate 7.

The mounting portion 851 is attached to the top plate 7 using a screw v. That is, as shown in FIG. 20, screw insertion holes 854a, 855a are provided at the locations of the first mounting plate 854 and the second mounting plate 855 corresponding to the eye nuts 73, respectively, and the mounting portion 851 is fastened to the common fastening point 72 of the top plate 7 by screwing the screws v inserted from below into the screw insertion holes 854a, 855a into the corresponding eye nuts 73.

The first and second mounting plates 854, 855, the base plate 852, and the tip plate 853 are made integrally from a common sheet metal material by bending or other processes.

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 manner in which the drive cable 81 and the operation cable 82 are arranged 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 with the rise and fall of the top plate 7. Note that in FIGS. 3 to 6, 8, 9, and 19, the tip cable part 813 of the drive cable 81 and the tip part of the operation cable 821 are omitted. FIG. 20 is an exploded perspective view showing the manner in which the multi-function member 85 is attached to the top plate 7. FIG. 21 is a side cross-sectional view of the main part showing the same attachment manner. FIG. 22 is an overall perspective view of furniture T with a top plate with the multi-function member 85 in the cord receiving position (Q). FIG. 23 is a cross-sectional view taken along line X-X in FIG. 22. FIG. 24 is an overall perspective view of furniture T with a top plate with the multi-function member 85 in the top extension position (R). FIG. 25 is a cross-sectional view taken along line Y-Y in FIG. 24. FIG. 26 is an overall perspective view of furniture T with a top plate with the multi-function member 85 in the shelf position (S). FIG. 27 is a cross-sectional view taken along line Z-Z in FIG. 26. Note that in FIGS. 1 to 19, the multi-function member 85 is in the cord receiving position (Q).

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 24 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 furniture T with a tabletop, a common fastening point 72 is provided at a fixed position on the tabletop 7, and the multi-function member 85 can be attached in three different positions by selectively fastening three mounting surfaces 85a, 85b, and 85c to this one type of common fastening point 72. That is, the tabletop 7 has one type of common fastening point 72, and one of the three mounting surfaces 85a, 85b, and 85c provided on the multi-function member 85 is selectively attached to this common fastening point 72, so that each mounting surface 85a, 85b, and 85c of the multi-function member 85 can correspond one-to-one to each mounting position (Q), (R), and (S). Therefore, there is no hesitation when selecting the mounting position (Q), (R), or (S), and the multi-function member 85 can be quickly attached to the desired position for use.

In particular, by setting the common fastening point 72 in a position near the opposite end 7b of the tabletop 7 as in this embodiment, it becomes possible to selectively position the multi-function member 85 in one of three positions: a cord receiving position (Q) for guiding various cords related to the tabletop 7; a tabletop extension position (R) that can effectively expand the area of the tabletop 7; and a shelf position (S) that can utilize the area near the opposite end 7b of the tabletop 7 in a multi-dimensional manner, thereby greatly improving usability.

Note that the present invention is not limited to the embodiments described above.

For example, the tabletop is not limited to being supported by a single leg, and may not be raised or lowered. Even in furniture with a tabletop that can be electrically raised or lowered, any form of routing may be used for the operation cable for transmitting the operation signal from the operating body to the controller and the drive cable for supplying drive power to the electric actuator in the leg support. In addition, the configuration of the frame structure including the leg base and the footrest may be set arbitrarily, and the present invention may be applied to furniture with a tabletop that does not have a footrest.

The number of mounting surfaces of the multi-functional component is not limited to three, and may be four or more.

The overall configuration of the multifunctional component is not limited to the sheet metal construction described above. However, as shown in the example, if the multifunctional component is made of sheet metal and includes a mounting section having three mounting surfaces, a base plate with a base edge supported on the mounting section, and a tip plate extending perpendicularly from the tip edge of the base plate, and the mounting section is integrally provided with a first mounting plate parallel to the base plate and a second mounting plate facing the tip plate and connected to the base edge of the base plate, and at least one surface of the first and second mounting plates is formed with a mounting surface, it is easy to reduce the number of parts and achieve weight reduction, and the labor required for part manufacturing and assembly can also be reasonably reduced.

The positions that the multi-functional component can take are not limited to the three types mentioned above, but if they are as described above, it is possible to widely change the function of the tabletop by changing the mounting position of only the end opposite the end of the tabletop that is not in use.

In the above-described embodiment, the same common fastening points are provided at fixed positions set on both the left and right sides of the counter-use end of the tabletop, but for example, the number of fixed positions at which the common fastening points are provided may be one or more than three. When common fastening points are provided at multiple fixed positions, it is sufficient to fasten independent multifunctional members to each common fastening point. In this case, it is not necessary to attach the multifunctional members corresponding to all the common fastening points in the same position, and they can be fastened in different positions. In other words, if the tabletop is provided with multiple common fastening points and is configured so that the independent multifunctional members can be fastened to each common fastening point, the multifunctional members attached to the multiple common attachment points of the tabletop can be in different positions, and more diverse modes of use can be selected.

The position and configuration of the grounding body may also be set arbitrarily.

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

T... Furniture with tabletop 7... Tabletop 7b... Opposite end of use 7f... Top surface of tabletop 72... Common fastening point 85... Multi-function member 85a... Mounting surface (set on one side of first mounting plate) 85b... Mounting surface (set on the other side of first mounting plate) 85c... Mounting surface (set on one side of second mounting plate) 85m... Cord guide groove 851... Mounting portion 852... Base plate 852a... Outer surface of base plate 853... Tip plate 854... First mounting plate 855... Second mounting plate (Q)... Cord receiving position (R)... Tabletop extension position (S)... Shelf position

Claims (8)

Furniture with a tabletop, comprising a tabletop having a common fastening point at a fixed position, and a multifunctional member having three or more mounting surfaces that can be fastened to the common fastening point of the tabletop, and that can be selectively attached to the tabletop in three or more positions by selectively fastening one of the mounting surfaces to the common fastening point. The common fastening point is set at the opposite end of the top plate,
The multi-function member has three mounting surfaces;
2. The furniture with a tabletop according to claim 1, wherein the multi-function member is configured to be capable of selectively adopting one of a cord receiving position, a tabletop extension position, and a shelf position by fastening one of the mounting surfaces to a common fastening point. The multi-function member includes an attachment portion having three attachment surfaces, a base plate having a base end edge supported by the attachment portion, and a tip plate extending perpendicularly from a tip end edge of the base plate,
The cord receiving position is a position in which a cord guide groove is formed with the base plate at the bottom between the opposite end surface of the top plate and the tip plate,
The top plate extension position is a position in which one surface of the substrate is flush with and continuous with an upper surface of the top plate,
3. The furniture with a tabletop according to claim 2, wherein the shelf position is a position in which the end panel is disposed parallel to and spaced apart from an upper surface of the tabletop. The furniture with a top according to claim 3, wherein the mounting portion is integrally provided with a first mounting plate parallel to the base plate and a second mounting plate facing the tip plate and connected to the base edge of the base plate, and the mounting surface is formed on at least one surface of the first and second mounting plates. The furniture with a top according to claim 4, wherein the multi-function member is configured to assume the cord receiving position by fastening an attachment surface set on one side of the first attachment plate to the common fastening point. The length dimension of the second mounting plate is set equal to the thickness dimension of the top plate,
5. The furniture with a tabletop according to claim 4, wherein the multi-function member is configured to assume the tabletop extension position by fastening an attachment surface set on the other side of the first mounting plate to the common fastening point. The length dimension of the substrate is set to be greater than the thickness dimension of the top plate,
5. The furniture with a tabletop according to claim 4, wherein the multi-function member is configured to assume the shelf position by fastening a mounting surface provided on one surface of the second mounting plate to the common fastening point. Furniture with a tabletop according to claim 1, 2, 3, 4, 5, 6 or 7, in which the tabletop has a plurality of common fastening points and is configured so that the multi-function members, which are independent of each other, can be fastened to each of the common fastening points.

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