Table leg frame structure and table

Abstract

To improve rigidity of a leg frame structure.SOLUTION: A leg frame structure of a table is so formed that a pair of leg bodies 210 (leg supports) includes leg bodies 200 connected by a leg body connecting part 220 (a leg support connecting part). The leg body connecting part 220 includes a bottom wall part 221 (a quadrilateral wall part) having a quadrilateral shape in plan view, and outer peripheral side wall parts 222 (outer peripheral wall parts) respectively bent from four sides of an outer periphery of the bottom wall part 221. The bottom wall part 221 includes a plurality of bolt holes 225 disposed at a first position on an inner side of a top plate 100 and a second position on an outer side thereof and fixing the top plate 100.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a leg frame structure for a table and a table. [Background technology]

[0002] Conventionally, a desk device has been known in which the upper parts of a plurality of legs, which are installed spaced apart in the left-right direction, are connected to each other by a connecting member disposed in the center of the front-to-rear direction of the top plate in a plan view in order to enable the attachment of optional components to the underside of the top plate (see, for example, Patent Document 1). In this desk device, the vicinity of the front-to-rear end of the legs is connected to the connecting member by a reinforcing rod. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-094279 Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration described above, in which the vicinity of the front and rear ends of the leg body and the connecting member arranged in the center are connected by reinforcing rods, not only is the number of parts increased, but it is also difficult to significantly increase rigidity.

[0005] The present invention has been made in view of the above points, and has as its object to make it possible to easily reduce the number of constituent members and increase rigidity. [Means for solving the problem]

[0006] To achieve the above objectives, The present invention provides A leg frame structure for a table having legs in which the upper ends of a pair of leg supports are connected by a leg support connecting part and which support the underside of a tabletop, The leg support connecting portion is a rectangular wall portion having, in a plan view, one side at a position connecting the pair of leg supports and an opposite side located on the inward side of the tabletop relative to the one side and on the inward side of the tabletop relative to the pair of leg supports; an outer peripheral wall portion bent from each of the four outer peripheral sides of the rectangular wall portion toward the axial direction of the leg support; The rectangular wall portion is provided with a plurality of bolt holes for fixing the top plate, and the bolt holes are arranged at a first position on the opposite side and a second position closer to the one side than the first position.

[0007] This makes it easy to connect the leg supports with high rigidity and strength using the leg support connectors, even with a small number of leg parts and screws. [Effects of the Invention]

[0008] In the present invention, it is easy to reduce the number of components and increase the rigidity. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view showing a schematic configuration of a table. [Figure 2] FIG. 2 is a perspective view showing the configuration of a leg body 200. [Figure 3] 2 is a cross-sectional perspective view showing the configuration of the main part of the leg body 200. FIG. [Figure 4] FIG. 3 is a perspective view showing the configuration of the leg 200 as seen from a different direction than that of FIG. 2. [Figure 5] FIG. 2 is a perspective view showing the configuration of the leg body 200 with the table turned upside down. [Figure 6] FIG. 10 is a cross-sectional perspective view showing the configuration of the main part of a leg 200 of a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each of the following embodiments, components having the same functions as those in other embodiments will be denoted by the same reference numerals, and their description will be omitted.

[0011] (Overall table configuration) 1, the table of this embodiment is configured such that a tabletop 100 is supported by a leg frame structure consisting of two leg bodies 200 and two leg body connectors 300 (cross members in a direction intersecting the direction connecting the leg bodies 210) that connect these leg bodies 200. The leg body 200 is configured such that a pair of leg bodies 210 are connected by a leg body connector 220.

[0012] (Configuration of leg body 200) 2 to 5, the leg body 200 is formed by welding a pair of leg bodies 210 to a leg body connector 220 having, for example, an isosceles trapezoidal shape in a plan view. Here, the trapezoidal shape does not mean a trapezoid having four geometrically precise vertices and sides, but may be a shape having a generally parallel lower and upper bases and legs (hypotenuses) of, for example, equal lengths. The leg body connector 220 is formed by bending a plate member such as a steel plate and has a bottom wall 221 corresponding to the trapezoidal shape, an outer peripheral side wall 222 rising, for example, vertically from the outer peripheral edge of the bottom wall 221, an upper wall 223 bending from the upper edge of the outer peripheral side wall 222 toward the inside of the trapezoidal shape in a direction parallel to the bottom wall 221, and an inner peripheral side wall 224 bending, for example, vertically from the inner peripheral edge of the upper wall 223 toward the bottom wall 221. The outer peripheral side wall portion 222, the upper wall portion 223, and the inner peripheral side wall portion 224 are welded together at their adjacent portions near the vertices of the trapezoidal shapes to form welded portions 231.

[0013] Notches 222a and 223a are formed in outer peripheral side wall 222 and top wall 223 at the upper base of the trapezoidal shape. Leg body connecting part 300 is formed from a square pipe and is connected by fitting into notches 222a and 223a. As shown in Figure 3, leg body connecting part 220 is fixed by having bolt 242 inserted into bolt hole 226 formed in bottom wall 221 and threaded into female thread 301 formed in leg body connecting part 300.

[0014] The tabletop 100 is supported by the upper wall 223 of the leg body connecting portion 220 and the leg body connecting portion 300 and is fixed in place by bolts 241 and 311 inserted through bolt holes 225 formed in the bottom wall 221 and upper wall 223 of the leg body connecting portion 220 and bolt holes 302 formed in the leg body connecting portion 300. The placement of the bolts 241 is not particularly limited, but they may be placed, for example, at the upper base and the oblique side, i.e., at a first position on the upper base (opposite side) side and a second position on the lower base (one side) side of the first position. The lower base side may also be positioned further outward than the upper base portion in the direction connecting the leg bodies 210.

[0015] As described above, by forming the outer peripheral side wall 222, the upper wall 223, and the inner peripheral side wall 224 around the bottom wall 221 by bending a plate member, high rigidity and strength can be easily ensured with a small number of leg parts and screws. In particular, even if the cutouts 222a and 223a are formed in the outer peripheral side wall 222 and the upper wall 223 at the joint of the leg body connecting portion 300, the bottom wall 221 and the inner peripheral side wall 224 in the plane perpendicular to the bottom wall 221 are continuous in the direction connecting the leg bodies 210, so that rigidity and strength can be more easily ensured.

[0016] In addition, since the leg body connecting portion 220 has a trapezoidal shape when viewed in a plane and the shorter upper base portion is located further inward than the edge of the tabletop 100 along the lower base portion, the space near the edge perpendicular to the above-mentioned edge of the tabletop 100 can be made larger, and it is also easy to prevent screw heads from protruding near the outer periphery of the tabletop 100.

[0017] (Variation) The dimensions of each part of the leg frame structure, including the leg body connecting part 220 described above, can be set in various ways, but for example, as shown in Figure 6, the width of the upper wall part 223 on the upper base side of the trapezoidal shape of the leg body connecting part 220 may be widened so that the corresponding inner peripheral side wall part 224 is located near the middle of the leg (hypotenuse) of the trapezoid. In this case, the span of the welded part 231 can also be made longer, making it even easier to increase the strength and rigidity.

[0018] (Other matters) In the above example, the leg body connecting portion 220 has a trapezoidal shape when viewed in a plane, but this is not limited to this, and it may have a quadrilateral shape such as a rectangle when viewed in a plane, having one side connecting a pair of leg bodies 210 and an opposite side located on the inward side of the tabletop 100 than the above-mentioned side and also on the inward side of the above-mentioned pair of leg bodies 210.

[0019] Furthermore, in the above example, the outer peripheral side wall portion 222 is bent from the bottom wall portion 221 toward the top plate 100, but this is not limited to this. The bottom wall portion 221 may be positioned toward the top plate 100, and the outer peripheral side wall portion 222 may be bent in a direction away from the top plate 100 (downward).

[0020] Two leg bodies 200 including the leg body connecting portion 220 as described above may be provided as shown in Figure 1 to support the tabletop 100, but this is not limited to this, and only one may be used and combined with, for example, a wide leg known as a panel leg or a monitor leg. [Explanation of symbols]

[0021] 100 baking sheet 200 legs 210 Script body (leg support) 220 Script body connection part (leg support connection part) 221 Bottom wall (square wall) 222 Outer wall (outer wall) 222a·223a Notch 223 Upper wall section 224 Inner peripheral side wall 225 bolt holes 226 Bolt holes 231 Welded Parts 241 volts 242 volts 300 Leg connection part (cross member) 301 female thread 302 Bolt holes 311 volts

Claims

1. A leg frame structure for a table having legs in which upper ends of a pair of leg supports are connected by a leg support connecting part and which support the underside of a tabletop, The leg support connecting portion is a rectangular wall portion having, in a plan view, one side at a position connecting the pair of leg supports and an opposite side located on the inward side of the tabletop relative to the one side and on the inward side of the tabletop relative to the pair of leg supports; an outer peripheral wall portion bent from each of four outer peripheral sides of the rectangular wall portion toward the axial direction of the leg support, A table leg frame structure characterized in that the rectangular wall portion has a plurality of bolt holes for fixing the tabletop, and the bolt holes are arranged at a first position on the opposite side and a second position on the one side of the table from the first position.

2. The leg frame structure of claim 1, A table leg frame structure, characterized in that the rectangular wall portion has a trapezoidal shape in which the opposite side is shorter than the one side.

3. The leg frame structure of the table according to any one of claims 1 and 2, A table leg frame structure characterized in that the leg support connecting portion has an outer wall portion bent from the four outer sides of the rectangular wall portion toward the tabletop, and further has an upper wall portion bent from the upper edge of the outer wall portion toward the inside of the rectangular shape, parallel to the rectangular wall portion.

4. The leg frame structure of the table according to any one of claims 1 to 3, Further, a cross member is provided, which is disposed in a direction intersecting the direction connecting the pair of leg supports, is connected to the leg support connecting portion, and supports the tabletop, A leg frame structure for a table, characterized in that the cross member is connected to the leg support connecting portion in a state where it is fitted into a notch formed in the outer peripheral wall portion of the leg support connecting portion.

5. The leg frame structure of the table according to any one of claims 1 to 4, A table leg frame structure characterized in that the joints between adjacent outer wall portions are welded.

6. The top plate and a leg body according to claim 1, which is disposed at a position corresponding to at least one side of the tabletop; A table comprising:

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