Furniture with tabletops

Abstract

To provide furniture with a top plate which solves such a problem that positioning of pieces of furniture is difficult in stacking.SOLUTION: A furniture D with a top plate includes a top plate 2, a pair of right and left leg support posts 12 for supporting a side of a non-use end 2b of the top plate 2, and a pair of right and left leg bases 11 in which a base end side is joined to a lower end part of the leg support post 12, and a tip end side is extended to a side of a use end 2c of the top plate 2. Inner side surfaces 11b positioned on a tip end side with respect to the leg support post 12 of both leg bases 11 face each other. An inner dimension L1 between the inner side surfaces 11b of both leg bases 11 is set to be greater than an outer width dimension L0 between outer side surfaces 12a of both leg support posts 12, and the inner side surface 11b of the leg base 11 is inclined in a direction in which the inner dimension L1 increases gradually from a base end side to a tip end side.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to furniture with a tabletop that can be suitably used as a lecture desk or the like. [Background technology]

[0002] Conventionally, this type of furniture with a tabletop (desk) has been known to include a tabletop, a pair of left and right leg supports that support the opposite end of the tabletop from the use end, and a pair of left and right leg bases that are connected at their base ends to the lower ends of the leg supports and extend at their tip ends toward the use end of the tabletop, with the inner surfaces of the leg bases located closer to the tip than the leg supports facing each other (see, for example, non-patent document 1).

[0003] In this type of configuration, multiple desks can be stacked sequentially starting from the opposite end of the desk. However, in conventional desks, the inner surfaces of the leg bases are parallel and face each other, so if the dimensions are set so that the desks do not move left and right when stacked, it becomes difficult to fit the left and right leg bases onto the outside of the support columns of the desk below.

[0004] This problem is not limited to lecture desks, but has been pointed out in various pieces of furniture with tabletops. [Prior art documents] [Non-patent literature]

[0005] [Non-Patent Document 1] "SEEDA STACKING LECTURE DESKS", Houtoku 2020 General Catalog, Houtoku Co., Ltd., December 2019, p. 600 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention aims to solve the problem of difficulty in aligning furniture pieces when stacking them. [Means for solving the problem]

[0007] The invention described in claim 1 comprises a top plate, a pair of left and right leg supports supporting the opposite end of the top plate, and a pair of legs attached to the lower ends of the leg supports. Combined A piece of furniture with a tabletop, comprising a pair of left and right leg bases whose tip ends extend toward the use end of the tabletop, and whose inner surfaces located on the tip side of the leg support columns face each other, the inner dimension between the inner surfaces of the leg bases being set larger than the outer width between the outer surfaces of the leg support columns, and the inner dimensions of the leg bases being inclined in a direction that gradually increases from the base end side toward the tip end side. The leg support is a rectangular pipe-shaped leg base, and the leg base comprises a leg base body extending in the front-rear direction and a support mounting part provided at the base end of the leg base body so as to protrude inward, and the leg support is connected to the support mounting part. is.

[0008] The furniture with a tabletop according to the invention described in claim 2 is the furniture described in claim 1, in which the left and right side surfaces of the tabletop and the outer surfaces of the leg bases are substantially aligned in a plan view.

[0009] The furniture with a tabletop according to the invention described in claim 3 is the furniture described in claim 1 or 2, wherein the leg base has a continuous upward surface without any steps, and the upward surface is positioned further outward than the corresponding leg support throughout the entire area from the base end to the tip end.

[0011] Claim 4 The described invention is The aforementioned A tabletop support arm is provided at the upper end of the leg support column, extending in the direction of the use end of the tabletop. The leg bases are positioned outside the leg supports of another piece of furniture with a tabletop of the same structure, and the tabletop support arm is placed on the tabletop of the other piece of furniture with a tabletop, so that the piece of furniture can be stacked on top of the other piece of furniture with a tabletop. The furniture with a tabletop according to claim 3 .

[0012] Claim 5 The invention described in the document is that the tabletop support arm has a downward horizontal surface that abuts against the top surface of another piece of furniture with a tabletop in a stacked state, and an inclined surface that is continuous with the tip of the downward horizontal surface and gradually rises toward the use end side. 5. The furniture with a tabletop according to claim 4, is.

[0013] Claim 6 The invention described in the specification has a grounding device on the bottom surface of the leg base that elastically supports the leg base on the floor surface, and a descent prevention member that prevents the leg base from descending within the range where the grounding device can elastically support the leg base. Furniture with a tabletop according to claim 4 or 5 is. [Effects of the Invention]

[0014] According to the present invention, it is possible to solve the problem of difficulty in aligning furniture pieces with each other when stacking. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view of furniture with a tabletop according to an embodiment of the present invention; [Figure 2] FIG. 4 is a rear view of the furniture with a tabletop according to the embodiment. [Figure 3] FIG. 2 is a side view of the furniture with a tabletop according to the embodiment. [Figure 4] FIG. 2 is a bottom view of the furniture with a tabletop according to the embodiment. [Figure 5] FIG. 3 is a cross-sectional view taken along line XX in FIG. 2. [Figure 6] FIG. 4 is an exploded perspective view showing a mounting state of the grounding device of the furniture with a tabletop according to the embodiment. [Figure 7] FIG. 4 is a bottom view of the leg base of the furniture with a tabletop according to the embodiment. [Figure 8] FIG. 8 is an enlarged cross-sectional view taken along line AA in FIG. [Figure 9] FIG. 8 is an enlarged cross-sectional view taken along line BB in FIG. [Figure 10] FIG. [Figure 11] 11 is a view taken along the arrow α in FIG. [Figure 12] 3A and 3B are explanatory diagrams showing a mounting state of the grounding device according to the embodiment; [Figure 13] FIG. [Figure 14]FIG. 10 is a side view showing a stacking mode of the furniture with a tabletop according to the embodiment. [Figure 15] 10A and 10B are explanatory diagrams illustrating the operation of the furniture with a tabletop according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] An embodiment of the present invention will be described below with reference to FIGS.

[0017] The furniture D with a top plate of this embodiment (when it is necessary to distinguish this furniture D with a top plate from other furniture with a top plate D2 and D3 of the same structure, this furniture with a top plate may be referred to as "furniture with a top plate D1") is a lecture desk type, and as shown in Figures 1 to 5, comprises a top plate 2, a pair of left and right leg supports 12 that support the opposite end 2b of the top plate 2, and a pair of left and right leg bases 11 that are connected at their base ends 11e to the lower ends of the leg supports 12 and have their tip ends 11f extending towards the use end 2c of the top plate 2, with the inner surfaces 11b of both leg bases 11 that are located on the tip end 11f side of the leg supports 12 facing each other. The inner dimension L1 between the inner surfaces 11b of both leg bases 11 is set larger than the outer width dimension L0 between the outer surfaces 12a of both leg supports 12, and the inner surface 11b of the leg base 11 is inclined in a direction such that the inner dimension L1 (including the inner dimension L1a on the base end 11e side and the inner dimension L1b on the tip end 11f side) gradually increases from the base end 11e side toward the tip end 11f side. Specifically, the inner surface 11b of the leg base 11 is inclined by an angle θ with respect to an imaginary line m parallel to the outer surface 11c of the leg base 11.

[0018] 5, in this furniture D with a tabletop, the left and right side surfaces 2a of the tabletop 2 and the outer surfaces 11c of the leg bases 11 are aligned in a plan view. Therefore, the left and right leg bases 11 have a tapered shape in which the width gradually decreases toward the tip 11f.

[0019] As shown in FIGS. 1, 4 and 5, the top plate 2 is a flat plate having a rectangular shape in a plan view, and is supported by a pair of left and right leg supports 12 at the side opposite to the end 2b of use.

[0020] 1 to 3, the leg supports 12 are rectangular pipes with a rectangular cross section whose width in the left-right direction is smaller than its width in the front-to-rear direction, and a tabletop support arm 13 (described later) is provided at the upper end of each leg support 12. A top panel 3 is also provided between the upper ends of the left and right leg supports 12.

[0021] 1 to 9, the leg base 11 has a continuous upward surface 11d without any steps, and the upward surface 11d is positioned outward of the corresponding leg support 12 throughout its entire area from the base end to the tip. The leg base 11 also has a support mounting part 111 that protrudes inward at the base end (near the base end 11e), and the leg support 12 is erected on the support mounting part 111. More specifically, the leg base 11 has a leg base main body 110 having the upward surface 11d, and the support mounting part 111 that protrudes inward at the base end of the leg base main body 110 (near the base end 11e of the leg base 11), and is an integrally molded product made by aluminum die casting or the like. As shown in Figure 9, this support mounting portion 111 is provided with a screw insertion hole 11z through which a bolt B can be inserted from below, and the bolt B passing through this screw insertion hole 11z is screwed into a female threaded hole of a plate-shaped nut 121 rigidly attached inside the lower end of the leg support 12, thereby connecting the leg base 11 and the leg support 12.

[0022] As shown in Figures 1 to 3 and 14, a tabletop support arm 13 extending in the direction of the use end 2c of the tabletop 2 is provided at the upper end of the leg support 12 of the tabletop-equipped furniture D1, and as shown in Figure 14, both leg bases 11 are positioned outside both leg supports 12 of another tabletop-equipped furniture D2 of the same structure, and the tabletop support frame 13 is placed on the tabletop 2 of the other tabletop-equipped furniture D2, so that the tabletop-equipped furniture D2 can be stacked on top of the other tabletop-equipped furniture D2.

[0023] 1 to 3 and 14, the tabletop support arm 13 is a rectangular pipe rigidly connected to the upper end of the leg support 12, and as shown in Fig. 14, has a downward horizontal surface 13a that abuts against the upper surface of the tabletop 2 of another piece of tabletop-equipped furniture D2 in the stacked state, and an inclined surface 13b that continues from the tip of this downward horizontal surface 13a and gradually rises toward the use end 2c. A sheet 131 made of, for example, nylon is attached to this downward horizontal surface 13a and inclined surface 13b.

[0024] On the other hand, as shown in Figures 1 to 4, 6 to 9 and 14, the bottom surface of the leg base 11 is provided with a grounding device 4 that elastically supports the leg base 11 on the floor surface F, and descent prevention members 14(A), 14(B) that prevent the leg base 11 from descending within the range in which it can be elastically supported by the grounding device 4.

[0025] As described above and as shown in FIGS. 1 to 5, this furniture D with a tabletop comprises a furniture body 1 having a tabletop 2, leg supports 12, leg bases 11, tabletop support arms 13, and a back panel 3, and grounding devices 4 have a damping function that elastically supports the furniture body 1 on a floor surface F. As shown in FIGS. 1, 3, 4, and 6, the grounding devices 4 are provided near both the front and rear ends of the left and right leg bases 11, and as shown in FIGS. 6 to 8 and 10 to 13, the grounding devices 4 comprise a housing 5 provided on the leg base 11, a grounding body 62 supported so as to be capable of projecting and retracting into the housing 5, and an elastic member 7 that is a damping element that provides resistance to the retracting movement of the grounding body 62. The elastic member 7 has viscoelasticity that allows it to be compressed by the retracting movement of the grounding body 62.

[0026] More specifically, as shown in Figures 6 to 8 and 10 to 13, the grounding device 4 includes a housing 5 detachably mounted on the bottom of furniture D with a tabletop, a rotating member 6 supported by the housing 5 so as to be rotatable up and down and having a grounding body 62 on its underside that contacts the floor F, and an elastic member 7 disposed within the housing 5 and having viscoelasticity that is compressed by the upward rotation of the rotating member 6. Here, the grounding device 4 can be attached to furniture D with a tabletop only in a predetermined position. That is, as shown in Figures 6, 8 and 12, the bottom surface of the furniture D with a tabletop, i.e., the bottom surface of the leg base 11, is provided with a plurality of recesses 11a into which the housing 5 can be fitted from below, and the shape of the bottom surfaces 11g of the recesses 11a is such that the furniture grounding device 4 can be attached only in a predetermined position.

[0027] 8, the housing 5 has a space 5s formed therein by curving the top surface 5a in accordance with the rotation locus 6k of the rotating member 6, and the elastic member 7 is accommodated in this space 5s in a curved position along the top surface 5a. One end 7a of the elastic member 7 abuts against the top surface 6a of the rotating member 6, and the other end 7b abuts against the upright surface 5b of the housing 5 that intersects with the end of the top surface 5a. The housing 5 is a box-shaped unit made of, for example, synthetic resin, and has bolt insertion holes 5c1 and 5c2 that pass through vertically at both ends, and the aforementioned space 5s in the middle region. The space 5s is open downward, and its ceiling surface 5a is formed outside the rotation locus 6k of the rotating member 6 and in a manner that approximates the rotation locus 6k. Specifically, the ceiling surface 5a comprises an upright flat surface 5a1 at one end, a cylindrical surface 5a2 that continues from the flat surface 5a1, and a horizontal flat surface 5a3 at the other end that continues from the cylindrical surface 5a2. The end of the flat surface 5a3 is perpendicular to the vertical upright surface 5b. As shown in FIGS. 8 and 13, a protrusion 5d1 is formed on the lower surface, i.e., the bottom surface 5d, of the housing 5 so as to surround the opening edge of the space 5s. An engaging protrusion 52 that can elastically engage with an engaging recess 8d of the cover 8 (described later) is provided on the outer peripheral surface of the protrusion 5d1. 8 and 12, the shape of the top surface 5f of the housing 5 corresponds to the bottom surface 11g of the recessed portion 11a of the furniture D so that the furniture grounding device 4 can only be attached in a predetermined position. That is, when the furniture grounding device 4 is attached in a predetermined position, one end 5f1 of the top surface 5f of the housing 5 can abut against one end 11g1 of the bottom surface 11g of the recessed portion 11a, and the other end 5f2 of the top surface 5f of the housing 5 can abut against the other end 11g2 of the bottom surface 11g of the recessed portion 11a. In other words, the height h1 of one end and the height h2 of the other end of the housing 5 of the furniture grounding device 4 are made different to correspond to the depths d11 and d12 of the one and other ends of the recessed portion 11a of the furniture D. That is, the bolt insertion hole 5c1 on one end side and the bolt insertion hole 5c2 on the other end side have different depths d21, d22. The rotating member 6 is accommodated in the bottom of the housing 5 configured as described above so as to be vertically rotatable.In addition, the rotating member 6 is held in the housing 5 by a cover 8 attached to the bottom surface 5d of the housing 5.

[0028] As shown in Fig. 13, the rotating member 6 has a support shaft 61a protruding from both sides of its base end, and the support shaft 61a is pivotally supported in a support groove 5x formed in each side wall 51 of the housing 5, and is disposed in the lower opening of the space 5s. More specifically, as shown in Figs. 8 and 13, the rotating member 6 is integrally formed of a member main body 61 having the support shaft 61a at its base end and a grounding member 62 protruding from the underside of the member main body 61, and is made of, for example, synthetic resin. Pivot grooves 5x are formed on both inner surfaces 5e of the housing 5 that form the space 5s, for rotatably supporting the support shafts 61a of the rotating member 6. The lower ends of both pivot grooves 5x are open to the bottom surface 5d of the housing 5, and the rotating member 6 can be attached to the housing 5 by engaging the support shafts 61a with the pivot grooves 5x from below. The grounding member 62 is suspended downward from the member body 61, and its underside is formed with a grounding cam surface 62a, whose contact position with the floor surface F changes as the rotating member 6 rotates. In this embodiment, the grounding member 62 gradually narrows toward its lower end. The rotating member 6 is held within the housing 5 by a lid 8 attached to the bottom surface 5d of the housing 5, and the lid 8 is provided with a window 8a through which the grounding member 62 of the rotating member 6 protrudes to the outside. As shown in FIGS. 8 and 13 , the housing 5 and the lid 8 are plate-like and fastened together to the leg base 11 of the tabletop-equipped furniture D by threading a common bolt 9 into an internally threaded hole 11x in the leg base 11. A temporary fastening element K is provided between the housing 5 and the lid 8 to prevent the lid 8 from falling off the housing 5 before being fastened by the bolt 9. In this embodiment, the temporary fastening element K is formed by elastically engaging an engaging protrusion 52 provided on the outer peripheral surface of the rib 5d1 of the housing 5 with an engaging recess 8d provided in the lid 8. As shown in Figures 8, 11, and 13, the lid 8 is a rectangular flat plate having screw insertion holes 8c at both ends that match the bolt insertion holes 5c of the housing 5, and the aforementioned window 8a in the middle region, and the aforementioned engaging recess 8d. In this embodiment, the engaging recess 8d is a through-hole that penetrates the lid 8 in the thickness direction. The height dimension of the lid 8 is uniform throughout. 6c is the rotation center of the rotating member 6.

[0029] The elastic member 7 is made of, for example, low-resilience urethane, and is accommodated in the space 5s of the housing 5 by deforming a rectangular block so that it curves along the ceiling surface 5a of the housing 5, as shown in Figures 8 and 13. The elastic member 7 may also be manufactured by punching out a thick plate material. In that case, the initial shape will be the curved shape shown in the example. More specifically, the elastic member 7 in the accommodated state is accommodated in the space 5s of the housing 5 with one end 7a abutting against the upper surface 6a of the rotating end side of the rotating member 6 and the other end 7b abutting against the upright surface 5b of the housing 5.

[0030] The furniture grounding devices 4 described above are attached to the rear and front ends of the left and right leg bases 11 of the furniture D with a tabletop. In this embodiment, the furniture grounding devices 4 attached to the rear ends of the leg bases 11 are set so that the rotating end of the rotating member 6 faces backward, while the furniture grounding devices 4 attached to the front ends of the leg bases 11 are set so that the rotating end of the rotating member 6 faces forward. This is because, due to the expansion and contraction that accompanies rotation, the grounding points of the irregular cam-shaped grounding bodies 62 move slightly during expansion and contraction. For this reason, if the grounding devices 4 are all rotated in the same direction, the furniture D with a tabletop will move as the furniture grounding devices 4 expand and contract. To stop this movement, it is appropriate to rotate the grounding devices 4 in opposite directions so that the movements cancel each other out, and it is therefore necessary to determine the installation direction of the grounding devices 4 accordingly.

[0031] When the rotating member 6 contacts the ground and rotates, one end 7a of the elastic member 7 is pressed against the upper surface 6a on the rotating end side of the rotating member 6, and the other end 7b is compressed between the abutting upright surface 5b. At this time, the elastic member 7 partially expands due to elastic deformation, but since an expansion margin is provided in the area above the rotation center 6c in Figure 8 and the distance between the both side walls 51 of the housing 5 is set larger than the thickness dimension of the elastic member 7 in the unloaded state, an expansion margin is also provided on both sides in the thickness direction of the elastic member 7, the rotating member 6 can rotate widely while receiving appropriate resistance from the elastic member 7.

[0032] Up to this point, we have explained the grounding devices 4 on the base end 11e side and the tip end 11f side of the leg base 11 without distinguishing between them. However, hereinafter, when the grounding device 4 on the base end 11e side is to be distinguished, it will be referred to as the grounding device 4(A) on the base end 11e side, and when the grounding device 4 on the tip end 11f side is to be distinguished, it will be referred to as the grounding device 4(B) on the tip end 11f side.

[0033] 1, 3, 4, 6 to 9, and 14, the descent suppression members 14(A) and 14(B) are protrusions that protrude from the bottom surface of the furniture main body 1, i.e., the bottom surface of the leg base 11, adjacent to the grounding devices 4(A) and 4(B), and are arranged closer to the edges than the grounding devices 4(A) and 4(B) on the bottom surface. More specifically, the furniture main body 1 of this embodiment has a leg base 11 that extends in the front-to-rear direction, and the grounding devices 4 are provided near both the front and rear ends of the leg base 11, and the descent suppression members 14(A) and 14(B) are arranged closer to the front and rear edges of the leg base 11, respectively. Specifically, the descent suppression member 14(A) disposed on the base end 11e side (front end side) of the leg base 11 is a rectangular pillar-shaped protrusion that is elongated in the front-rear direction and disposed adjacent to the inside of the ground contact device 4(A) on the base end side, with one end of the protrusion positioned forward of the ground contact device 4(A). In other words, the descent suppression member 14(A) on the base end 11e side is disposed closer to the base edge of the leg base 11 (closer to the base end 11e) than the ground contact device 4(A) on the base end 11e side. In addition, the descent suppression member 14(B) disposed on the tip end 11f side (rear end side) of the leg base 11 is a rectangular pillar-shaped protrusion that is elongated in the left-right direction and disposed adjacent to the front of the ground contact device 4(B) on the tip end 11f side, with the entire protrusion positioned rearward of the ground contact device 4(B) on the tip end 11f side. That is, the descent suppression member 14(B) on the tip 11f side is disposed closer to the tip edge of the leg base 11 (closer to the tip 11f) than the ground contact device 4 on the tip 11f side. Each descent suppression member 14(A), 14(B) is a block-shaped member made of synthetic resin such as nylon, and is fastened to the leg base 11 using, for example, a countersunk screw v. As shown in Figures 6 to 8, each of the descent suppression members 14(A), 14(B) has a screw insertion hole 14a in the center through which the countersunk screw v can be inserted, and also has engagement holes 14b in the vicinity of both longitudinal ends that can engage with positioning protrusions 112 provided at the front and rear ends of the leg base 11, respectively. Each descent prevention member 14(A), 14(B) is attached to the leg base 11 by engaging the engagement hole 14b with the positioning protrusion 112 and screwing a countersunk screw v passed through the screw insertion hole 14a into the female threaded hole 11y of the leg base 11.The protruding dimension of these descent suppression members 14(A), 14(B) is set to about 5 mm, for example, when the protruding and retracting dimension of the grounding body 62 is about 10 mm. Note that the difference between the protruding dimension of the descent suppression members 14(A), 14(B) and the protruding and retracting dimension of the grounding body 62 can be changed in various ways depending on the usage situation.

[0034] FIG. 14 shows a state in which multiple pieces of furniture with a tabletop D described above are stacked. In the stacked state, of two adjacent pieces of furniture with a tabletop D1 and D2, the grounding body 62 of the upper piece of furniture with a tabletop D1 is not in contact with the leg base 11 of the lower piece of furniture with a tabletop D2, and a gap S is formed between the upper grounding body 62 and the upward surface 11d of the lower leg base 11. Similarly, in the case of two adjacent pieces of furniture with a tabletop D2 and D3, the grounding body 62 of the upper piece of furniture with a tabletop D2 is not in contact with the leg base 11 of the lower piece of furniture with a tabletop D3, and a gap S is formed between the upper grounding body 62 and the upward surface 11d of the lower leg base 11. In the stacked state, gravity acting on all of the pieces of furniture with a tabletop D1 to D3 is applied to the grounding device 4 of the lowest piece of furniture with a tabletop D3, so that the grounding body 62 of that grounding device 4 is submerged in the housing 5, as shown in FIGS. 14 and 15(b). In addition, since the stacking involves stacking multiple pieces of furniture with tabletops D1-D3 while sequentially shifting forward, the center of gravity shifts toward the opposite end (front), and a large load acts on the grounding devices 4 of the lowest piece of furniture with tabletops D3, particularly on the grounding device 4(A) on the base end side. However, in this embodiment, the descent prevention member 14(A) is arranged closer to the base end 11e than the grounding device 4, so the lowest piece of furniture with tabletops D3 can be prevented from tilting forward due to excessive immersion of the grounding body 62. This prevents the stacked furniture with tabletops D3 from collapsing toward the opposite end 2b, enabling stable stacking.

[0035] Here, FIG. 1 is a perspective view of furniture D with a tabletop according to this embodiment, FIG. 2 is a rear view thereof, FIG. 3 is a side view thereof, and FIG. 4 is a bottom view thereof. FIG. 5 is a cross-sectional view taken along line XX in FIG. 2, with the tabletop 2 indicated by an imaginary line. FIG. 6 is an exploded perspective view showing the mounting state of the grounding device 4, and FIG. 7 is a bottom view of the leg base 11. FIG. 8 is an enlarged cross-sectional view taken along line AA in FIG. 7, with the intermediate portion omitted. FIG. 9 is an enlarged cross-sectional view taken along line BB in FIG. 7. FIG. 10 is a side view of the grounding device 4, and FIG. 11 is a view taken along arrow α in FIG. 10. FIG. 12 is an explanatory diagram showing the mounting state of the grounding device 4, and FIG. 13 is an exploded perspective view of the grounding device 4. FIG. 14 is a side view showing the stacking state of multiple pieces of furniture D1 to D3 with tabletops. FIG. 15 is an explanatory diagram of the operation of the grounding device 4 of furniture D with a tabletop, with (a) in FIG. 15 showing the unloaded state and (b) in FIG. 15 showing the state under a heavy load. In addition, in the above explanation, the side opposite the use end 2b of the tabletop 2 (the side toward the base end 11e of the leg base 11) is referred to as the "front" or "front face," and the side toward the use end 2c (the side toward the base end 11f of the leg base 11) is referred to as the "rear" or "back face."

[0036] With this configuration, the inside dimension L1 between the inside surfaces 11b of both leg bases 11 is set larger than the outside width dimension L0 between the outside surfaces 12a of both leg supports 12, so that the left and right leg bases 11 can be stacked one after the other by fitting them from the opposite end 2b side to the outside of the leg supports 12 of the lower piece of furniture D with a tabletop. Moreover, the inside surface 11b of the leg base 11 is inclined in a direction such that the inside dimension L1 gradually increases from the base end 11e side toward the tip end 11f side, making stacking easy. That is, even if the inner dimension L1a between the inner surfaces 11b near the base ends 11e of the left and right leg bases 11 is set to a value close to the outer width dimension L0 between the outer surfaces 12a of the left and right leg supports 12 to prevent lateral shifting when stacked, the inner dimension L1b between the inner surfaces 11b near the tips 11f of the left and right leg bases 11 can be set reasonably larger than the outer width dimension L0 between the outer surfaces 12a of the left and right leg supports 12. This eliminates the problem of it being difficult to fit the left and right leg bases 11 onto the outsides of the left and right leg supports 12 of the lower piece of furniture D with a top during the initial stage of stacking.

[0037] In addition, in this embodiment, the left and right side surfaces 2a of the tabletop 2 and the outer surfaces 11c of the leg bases 11 are approximately aligned in a plan view, so that multiple pieces of furniture D with tabletops can be arranged in an orderly manner with the leg bases 11 and the tabletops 2 abutting or close to each other.

[0038] Furthermore, in this embodiment, the leg base 11 is provided with a continuous upward surface 11d without any steps, and the upward surface 11d is positioned outward of the corresponding leg support 12 throughout its entire area from the base end to the tip, so that during stacking, the tip (near the tip 11f) of the leg base 11 of the upper piece of furniture D with a top can be temporarily brought into sliding contact with the upward surface 11d of the leg base 11 of the lower piece of furniture D with a top. In this case, since there are no steps on the upward surface 11d, the stacking operation can be performed particularly smoothly.

[0039] Furthermore, a support post mounting portion 111 that protrudes inward is provided at the base end of the leg base 11, i.e., near the base end 11e, and the support post 12 is erected on the support post mounting portion 111, so that the mounting location of the support post 12 can have a simple structure and the leg base 11 can be easily molded as a single unit.

[0040] Furthermore, a tabletop support arm 13 extending in the direction of the use end 2c of the tabletop 2 is provided at the upper end of the leg support 12, and stacking is possible by abutting the tabletop support arm 13 against the lower tabletop 2, so that the stacked pieces of furniture D with tabletops can be clearly positioned relative to each other. For example, when stacking is performed by placing a contact body 62 with a damper function on the lower leg base 11, the protruding and retracting positions of the contact body 62 differ depending on the load, which can easily lead to an unstable stacking state, but the configuration of this embodiment can eliminate such a problem.

[0041] Furthermore, the tabletop support arm 13 is provided with a downward horizontal surface 13a that abuts against the upper surface of the tabletop 2 of another piece of furniture D with a tabletop when stacked, and an inclined surface 13b that is continuous with the tip of this downward horizontal surface 13a and gradually rises toward the usable end 2c of the tabletop 2, so that the area near the tip of the tabletop support arm 13 can be prevented from colliding with the opposite usable end 2b of the tabletop 2 below and receiving an impact during stacking operations.

[0042] It goes without saying that 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.

[0043] For example, in the above-described embodiment, only the inner surface of the leg base is inclined relative to the side end surface of the tabletop, but it is also possible to make the inner and outer surfaces of the leg base parallel and set the mounting posture of the entire leg base non-parallel, thereby inclining both inner surfaces.

[0044] In addition, in the illustrated example, a grounding device having a grounding body that elastically supports the leg base on the floor surface is provided on the leg base, but the grounding device is not limited to this, and may also have a screw-type grounding body known as an adjuster, or a wheel-shaped grounding body known as a caster.

[0045] Furthermore, although the descent prevention member provided on the underside of the leg base is not necessarily required, if the leg base is provided with a grounding device with a damper function, it will be useful in stabilizing the stacking state as mentioned above. Such a grounding device for the leg base is not limited to one that uses a viscoelastic material, but the same applies to oil damper types, etc.

[0046] In addition, various modifications may be made without departing from the spirit of the present invention. [Explanation of symbols]

[0047] D...Furniture with a tabletop 11...Leg base 11b...Inner surface of leg base 11c...Outer surface of leg base 11d...Upward facing 11e...base end of leg base 11f...Tip of leg base 111...Support mounting part 12…Leg support 13...Tabletop support arm 13a…Downward horizontal plane 13b…Slope surface 14...Descent prevention member 2...Tabletop 2a...Side of the top plate 2c…Used end 4…Grounding device L0: Outer width between the outer surfaces of the leg bases L1: Inner dimension between the inner surfaces of the leg bases

Claims

1. A piece of furniture with a tabletop includes a tabletop, a pair of left and right leg supports supporting the opposite end of the tabletop, and a pair of left and right leg bases connected to the lower ends of the leg supports and having their tips extending toward the use end of the tabletop, with the inner surfaces of the leg bases located on the tip side of the leg supports facing each other, The inner dimension between the inner surfaces of the leg bases is set to be larger than the outer width dimension between the outer surfaces of the leg supports, and the inner surface of the leg base is inclined in a direction such that the inner dimension gradually increases from the base end side toward the tip end side, The leg support is a rectangular pipe, The leg base is provided with a leg base body extending in the front-to-rear direction and a support post mounting part provided at the base end of the leg base body so as to protrude inward, and the leg support is connected to the top of the support post mounting part.

2. 2. The furniture with a tabletop according to claim 1, wherein the left and right side surfaces of the tabletop and the outer surfaces of the leg bases are substantially aligned in a plan view.

3. 3. Furniture with a tabletop according to claim 1 or 2, wherein the leg base has a continuous upward surface without any steps, and the upward surface is positioned further outward than the corresponding leg support throughout the entire area from the base end to the tip end.

4. A tabletop support arm is provided at the upper end of the leg support, the tabletop support arm extending in the direction of the use end of the tabletop; 4. The furniture with a tabletop according to claim 3, wherein the leg bases are positioned outside the leg supports of another piece of furniture with a tabletop of the same structure, and the tabletop support arms are placed on the tabletop of the other piece of furniture with a tabletop, so that the furniture with a tabletop can be stacked on top of the other piece of furniture with a tabletop.

5. 5. The furniture with a tabletop according to claim 4, wherein the tabletop support arm has a downward horizontal surface that abuts against the upper surface of the tabletop of another piece of furniture with a tabletop when stacked, and an inclined surface that is continuous with the tip of the downward horizontal surface and gradually rises toward the use end side.

6. Furniture with a tabletop as described in claim 4 or 5, wherein a grounding device that elastically supports the leg base on the floor surface and a descent prevention member that prevents the leg base from descending within the range of elastic support provided by the grounding device are provided on the bottom surface of the leg base.

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