Table leg structure

Abstract

To provide a table leg structure that enables diverse usage patterns by making the metal die-cast components used as structural members for the legs that support the tabletop more versatile. [Solution] The tabletop 1 is supported by horizontal members 21 and 22, vertical members 23 extending downward from the horizontal members 21 and 22, and lower members 24 and 25 that support the vertical members 23 and have a grounding member 26 on their lower surface. The horizontal members 21 and 22, the vertical members 23, and the lower members 24 and 25 are made of metal, and the lower members 24 and 25 consist of two first lower members 24 made of die-cast metal, each having a grounding member 26 on its lower surface at one end and two boss portions 24a and 24b integrally formed at the other end. These two first lower members 24 are arranged opposite each other, and one boss portion 24a of each first lower member 24 is connected to the vertical member 23, while the other boss portions 24b are connected to each other by the second lower member 25.

Description

Technical Field

[0001] The present invention relates to a leg structure of a table used in an office or the like.

Background Art

[0002] In the case of a table used in an office or the like, particularly a large meeting table or the like, as a leg structure for supporting a heavy tabletop, a metal leg structure including a horizontal member for supporting the tabletop, a vertical member extending downward from the horizontal member, and a lower member for supporting the vertical member and provided with a grounding member on the lower surface is widely used.

[0003] And this metal leg structure uses, as constituent members, sheet metal members formed by bending and welding metal plates, metal pipe-shaped members having a rectangular or circular cross-sectional shape, metal die-cast members, etc., in appropriate combinations.

[0004] Among these, metal die-cast members have high strength and rigidity, so they may be applied to lower members to which various external forces are applied. However, since a mold is used in manufacturing, there is a problem that they have no versatility, are not suitable for multi-variety and small-batch production, and the manufacturing cost is high.

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a leg structure of a table that enables diversification of usage forms by giving versatility to a metal die-cast member used as a constituent member of a leg for supporting a tabletop.

Means for Solving the Problems

[0006] To achieve the above object, the leg structure of the table of the present invention is A table leg structure comprising a horizontal member that supports the tabletop, a vertical member that extends downward from the horizontal member, and a lower member that supports the vertical member and has a ground contact member on its lower surface, The horizontal members, vertical members, and lower members are made of metal, The lower member consists of two first lower members made of die-cast metal, each having a grounding member on the underside of one end and two boss portions integrally formed at the other end. These two first lower members are arranged opposite each other, with a vertical member connected to one boss portion of each first lower member, and the other boss portions connected to each other by the second lower member. It is characterized by the following:

[0007] In this case, the vertical member and the second lower member connected to the two boss portions of the first lower member can be made of tubular members.

[0008] Furthermore, the tabletop may be provided with intermediate legs made of metal, which have a rectangular side shape and a grounding member on their underside, to support the intermediate position in the longitudinal direction of the tabletop. [Effects of the Invention]

[0009] According to the table leg structure of the present invention, by adjusting the length of the second lower member, which is made of a metal member and connects to the first lower member, which is made of a metal die-cast member, the length of the lower members (the distance between the tips of the two first lower members, which are arranged opposite each other when the table is viewed from the side) can be adjusted to any length. This makes it possible to make the metal die-cast members used as components of the legs versatile, allowing for diversification of usage forms and reducing manufacturing costs. It can handle high-mix, low-volume production without requiring additional investment. [Brief explanation of the drawing]

[0010] [Figure 1] This is a perspective view showing a first embodiment of a table to which the table leg structure of the present invention is applied. [Figure 2]The table shows the same view, with (a) being a top view, (b) a front view, (c) a bottom view, and (d) a right side view. [Figure 3] This is a disassembled perspective view showing the same table. [Figure 4] The images show close-ups of the legs of the table, with (a) being a top view, (b) a front view, (c) a right side view, and (d) a perspective view. [Figure 5] The first lower leg member of the table is shown, with (a) being a hexagonal view and (b) being a perspective view. [Figure 6] The diagram shows the wiring outlet component installed in the wiring outlet of the tabletop of the table, with (a) being a plan view, (b) a right side view, (c) a front view, and (d) a perspective view. [Figure 7] This is an exploded perspective view showing the wiring outlet component. [Figure 8] This is a perspective view showing a second embodiment of a table to which the table leg structure of the present invention is applied. [Figure 9] The table shows the same view, with (a) being a top view, (b) a front view, (c) a bottom view, and (d) a right side view. [Figure 10] The following are various embodiments of a table to which the table leg structure of the present invention is applied, with (a1) to (c1) being side views and (a2) to (c2) being side views of the intermediate legs. [Modes for carrying out the invention]

[0011] Hereinafter, embodiments of the table leg structure of the present invention will be described with reference to the drawings.

[0012] Figures 1 to 7 show a first embodiment of a table to which the table leg structure of the present invention is applied. The leg structure of this table consists of legs 2 including horizontal members 21 and 22 that support the top plate 1, vertical members 23 that extend downward from the horizontal members 21 and 22, and lower members 24 and 25 that support the vertical members 23 and are provided with grounding members 26 on the lower surface. The horizontal members 21 and 22, the vertical members 23, and the lower members 24 and 25 are made of metal members. The lower members 24 and 25 are made of metal die-cast with a grounding member 26 provided on the lower surface of one end and two boss portions 24a and 24b integrally formed at the other end. Two of them are arranged opposite to each other. The vertical members 23 are respectively connected to one boss portion 24a of each first lower member 24, and the other boss portions 24b are connected to each other by a second lower member 25.

[0013] Each member constituting the leg 2 is made of a sheet metal member formed by bending and welding a metal plate or a metal tubular member with a rectangular cross-sectional shape, except for the first lower member 24 made of aluminum alloy die-cast. In particular, by configuring the vertical member 23 and the second lower member 25 connected to the two boss portions 24a and 24b of the first lower member 24 with tubular members, the connection with the first lower member 24 can be made simply and firmly.

[0014] The connection between the vertical member 23 and the boss portion 24a of the first lower member 24 uses screw fastening from below at the center. The connection between the boss portion 24b of the first lower member 24 and the second lower member 25 has a fitting structure, so that locking members such as screws do not appear on the surface, and the design can be enhanced.

[0015] Among the members constituting the leg 2, the horizontal members 21 and 22 that support the top plate 1 consist of a horizontal member 21 arranged in the longitudinal direction of the top plate 1 and a horizontal member 22 arranged in the short direction. The two are integrated so that the planar shape becomes rectangular by inserting a joint fitting (not shown in the figure) welded to the horizontal member 21 into the horizontal member 22 and screwing. stopping to integrate them.

[0016] The horizontal member 22 arranged in the short side direction is composed of two parts, and a joint fitting (not shown) is inserted into the horizontal member 22 and screwed to integrate them.

[0017] The lengths of the horizontal members 21 and 22 that support the top plate 1 are set according to the size of the top plate 1. However, as shown in Fig. 10(c1), in the case of the top plate 1 with a large short side dimension W (for example, W: 1500 mm), an intermediate horizontal member 27 is interposed between the two horizontally divided members 22, and a joint fitting (not shown) is inserted into the horizontal member 22 and screwed to integrate them. Thus, the horizontal member 22 can be shared with the top plate 1 shown in Fig. 10(b1) having a smaller short side dimension W (for example, W: 1200 mm).

[0018] The horizontal member 22 and the vertical member 23 are integrated by welding. Here, the vertical member 23 is attached to the horizontal member 22 not in the vertical direction but slightly inclined inward in side view.

[0019] The lower member composed of the first lower member 24 and the second lower member 25 has an arch shape as a whole, and a stable supporting force is obtained through the grounding member 26 provided on the lower surface of the first lower member 24.

[0020] The length of the second lower member 25 is set according to the size of the top plate 1. However, as shown in Figs. 10(a1) to (c1), as the short side dimension W of the top plate 1 increases, for example, W: 900 mm, 1200 mm, and 1500 mm, by simply adjusting the length of the second lower member 25, the total dimension of the first lower member 24 and the second lower member 25 (the distance between the tips of the two opposed first lower members 24 when the table is viewed from the side) W1 can be adjusted to, for example, W1: 900 mm, 1050 mm, and 1200 mm. This allows the first lower component 24, made of die-cast metal, to be standardized for all sizes of tabletops 1, making the first lower component 24, made of die-cast metal, which is used as a component of the legs 2, versatile and enabling diverse forms of use, as well as enabling high-mix, low-volume production without incurring high manufacturing costs.

[0021] As shown in Figures 6 and 7, a wiring outlet member 3 is installed in the wiring outlet formed in the center of the tabletop 1 of this table. The wiring outlet member 3 comprises a cover 31 and a tray 32, and is attached via a mounting portion 33 to a wiring outlet formed in the center of the top plate 1. The cover 31 is pivotably attached to the hinge member 34.

[0022] Incidentally, when the longitudinal dimension of the tabletop 1 is long, for example, when two (or more) tabletops 1 are connected via tabletop connecting fittings (not shown), as in the second embodiment of the table to which the leg structure of the present invention is applied, as shown in Figures 8 to 9, intermediate legs 4 made of metal members have a rectangular side shape and are provided with a grounding member 44 on their underside, which support intermediate positions (or multiple locations) in the longitudinal direction of the tabletop 1.

[0023] This intermediate leg 4 comprises a horizontal member 41 that supports the top plate 1, a vertical member 42 that extends vertically downward from the horizontal member 41, a lower member 43 that connects the vertical member 42, and a grounding member 44 provided on the lower surface of the vertical member 42.

[0024] Each component of the intermediate leg 4 is made of metal, specifically sheet metal made by bending and welding metal plates. It consists of components made of a certain material, and metal tubular components with a rectangular cross-section.

[0025] The horizontal member 41 is integrated with the horizontal member 21, which is arranged in the longitudinal direction of the top plate 1, by inserting a joint fitting (not shown) into the horizontal member 41 and fastening it with screws.

[0026] The horizontal member 41 and the vertical member 42, and the vertical member 42 and the lower member 43 are integrated by welding.

[0027] Then, as shown in Figures 10(a2) to (c2), if the dimension W in the shorter direction of the tabletop 1 is, for example, W: 900mm, 1200mm, or 1500mm, the width dimension W2 of the intermediate legs 4 when the table is viewed from the side is set to, for example, W2: 300mm, 450mm, or 450mm. This dimension is less than or equal to half the combined dimension W1 of the first lower member 24 and the second lower member 25 (the distance between the tips of the two first lower members 24 placed opposite each other when the table is viewed from the side), thereby preventing the chair legs from interfering with the intermediate legs 4.

[0028] The table leg structure of the present invention has been described above based on its embodiments. However, the present invention is not limited to the configuration described in the above embodiments, and its configuration can be modified as appropriate without departing from the spirit of the invention. [Industrial applicability]

[0029] The table leg structure of the present invention can be used in a variety of applications because the metal die-cast components used as structural members of the legs that support the tabletop are designed to be versatile. Therefore, it can be widely used for tables used in offices and other places, especially large meeting tables. [Explanation of symbols]

[0030] 1. Tabletop 2 legs 21 Horizontal member 22 Horizontal members 23 Vertical members 24 Lower member 24a Boss section 24b Boss section 25 Lower member 26 Grounding member 3. Wiring outlet member 31 Cover 32 trays 33 Mounting part 34 Hinge component 4 Intermediate legs 41 Horizontal member 42 Vertical members 43 Lower member 44 Grounding member

Claims

1. A table leg structure comprising a horizontal member that supports the tabletop, a vertical member that extends downward from the horizontal member, and a lower member that supports the vertical member and has a ground contact member on its lower surface, The horizontal members, vertical members, and lower members are made of metal, The lower member consists of two first lower members made of die-cast metal, each having a grounding member on the underside of one end and two boss portions integrally formed at the other end. These two first lower members are arranged opposite each other, with a vertical member connected to one boss portion of each first lower member, and the other boss portions connected to each other by the second lower member. A table leg structure characterized by the following features.

2. The table leg structure according to claim 1, characterized in that the vertical member and the second lower member connected to the two boss portions of the first lower member are made of tubular members.

3. The leg structure of a table according to claim 1 or 2, characterized in that it includes an intermediate leg made of a metal member having a rectangular side shape and a grounding member on its lower surface, which supports the intermediate position of the tabletop in the longitudinal direction.

Images