Furniture with legs

The lattice-shaped top plate with sliding and rotating leg members addresses interference issues in foldable furniture, enabling efficient folding and reduced parts, thus lowering costs.

JP7712240B2Active Publication Date: 2025-07-23FUKUBI KAGAKU IND
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Patent Information

Application Number
JP2022059916
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-03-31
Publication Date
2025-07-23
Estimated Expiration
2042-03-31

AI Technical Summary

Technical Problem

Conventional foldable furniture with legs faces interference between long leg members during folding, necessitating short leg members or additional guide members, which increase parts and manufacturing costs.

Method used

A lattice-shaped top plate with parallel bar members and hingedly connected leg members, allowing sliding and rotation without interference, using a minimal number of parts.

Benefits of technology

Enables folding of long leg members without interference and reduces part count, enhancing manufacturing efficiency and cost-effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an article of furniture with legs, which can be folded without making legs interfering with one another for folding even if the leg members have a large length, which can be structured with a small number of components, and which is equipped with a duckboard-like top plate.SOLUTION: An article of furniture with legs includes: a duckboard-like top plate part which is structured by lining up a plurality of duckboards in their width direction; and foldable leg members which are provided on a lower face side of this top plate part. On the lower face side of the top plate part 1, a pair of straight-line type bar materials is installed in parallel with a prescribed space apart and in a manner that the plurality of duckboards is passed over. Also, at least one connection member is freely slidably fitted and, for the connection member, the leg members are freely rotatably connected by hinges to the other bar material, as the adopted structure.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to furniture with legs having a foldable leg member.

Background Art

[0002] Many tables and benches with legs used indoors or outdoors have foldable leg members so that they can be transported and stored compactly (see, for example, Patent Document 1). Also, this type of table and bench with legs is generally configured such that two sets of leg members are pivotally connected to the inner side of the tabletop so as to be rotatable with respect to the four corners of the tabletop.

[0003] However, in the above-mentioned conventional foldable tables and benches, when the length of the leg members is large, the leg members facing each other interfere with each other during folding and cannot be folded, so the length of the leg members can only be designed to be about half the distance between the leg members. Therefore, it could only be adopted for those with a low position of the tabletop (short leg members) with respect to the width of the tabletop.

[0004] Also, in the above-mentioned conventional foldable tables and benches, when configured to be slidable so that the position of the leg members can be changed during folding, it is necessary to provide guide members such as guide rails on the lower surface side of the tabletop. However, providing the guide members separately increases the number of parts, which not only tends to increase the manufacturing cost but also has the drawback of deteriorating the manufacturing efficiency.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0006] The present invention aims to solve the problems of the above prior art. Briefly, even when the length of the leg members is large, it is possible to fold the furniture with legs having a lattice-shaped top plate that can be folded without interference between the leg members during folding and can be configured with a small number of parts.

Means for Solving the Problems

[0007] As a means for solving the above problems, the inventor of the present invention provides a piece of furniture with legs, which includes a lattice-shaped top plate portion formed by arranging a plurality of lattice plates side by side in the width direction of the lattice plate, and a foldable leg member provided on the lower surface side of the top plate portion. On the lower surface side of the top plate portion 1, a pair of linear bar members are attached in parallel at a predetermined interval and so as to span the plurality of lattice plates. At least one or more connecting members are slidably attached to these bar members, and the leg member is further hingedly connected to the other bar member so as to be rotatable with respect to the connecting member.

[0008] Further, in the present invention, even when the length of the leg member is greater than half of the interval between the pair of bar members, the leg members can be folded without interfering with each other when the leg members are folded.

[0009] In addition, the leg members are provided at the four corners of the top plate portion, and only a set of leg members arranged at diagonal positions of the top plate portion are hingedly connected to the slidable connecting members, so that a piece of furniture with legs can be configured with a simpler structure.

[0010] In addition, the bar member is formed from a square tube, and a plurality of rows of guide holes for mounting the connecting member are formed in parallel on the bottom surface of the bar member, so that the leg member can be slid smoothly without rattling.

[0011] In addition, the leg member is formed from a square tube and fixing pin holes are formed on the side surface. The leg member is hingedly connected to an L-shaped or U-shaped connecting member having insertion pin holes on the side wall, and a lock pin is attached to the fixing pin hole through the insertion pin hole, so that the leg member can be fixed in an upright state or a folded state.

[0012] In addition, the top plate portion can be configured as a top plate of indoor or outdoor furniture, but it is particularly preferably configured as a top plate for a table or a bench.

Advantages of the Invention

[0013] The furniture with legs of the present invention is configured by slidably mounting a foldable leg member to a bar member connecting the plywood plates of the top plate via a connecting member. Therefore, even when the length of the leg member is large, when folding the leg member, one of the opposing leg members can be shifted in the length direction of the bar member so that the leg members do not interfere with each other during folding. Moreover, since the furniture with legs of the present invention uses the bar member connecting the plywood plates as a slide guide, it can be configured with a small number of parts.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0015] 『First Embodiment』 The first embodiment of the present invention will be described with reference to FIGS. 1 to 4. In the drawings, what is indicated by the reference sign F is furniture with legs, what is indicated by the reference sign 1 is a top plate portion, what is indicated by the reference sign 2 is a leg member, and what is indicated by the reference sign 3 is a connecting member. What is indicated by the reference sign 4 is a hinge, and what is indicated by the reference sign P is a lock pin.

[0016] 「Configuration of Furniture with Legs」 [1] About the basic configuration The basic configuration of the furniture F with legs according to this embodiment will be described. In this embodiment, as shown in FIGS. 1(a) and 1(b), a plurality of slat plates 11 are arranged in the width direction of the slat plate 11 to form the top plate portion 1 in a slat shape. Also, a foldable leg member 2 is provided on the lower surface side of the top plate portion 1 to form the furniture F with legs. Further, the top plate portion 1 has a pair of linear bar members 12 attached in parallel at a predetermined interval on the lower surface side of the slat plate 11 and spanning across the plurality of slat plates 11, thereby connecting and integrating the plurality of slat plates 11 arranged in the width direction.

[0017] Also, as shown in FIGS. 1(a), 1(b) and 2, the above-mentioned foldable leg member 2 is hinge-connected to the connecting member 3 attached to the bar member 12 via a hinge 4, so that each leg member 2 can rotate toward the other bar member 2. And, among the two connecting members 3 attached to both sides of the bar member 12, one connecting member 3 is slidably mounted in the length direction of the bar member 12, so that a set of leg members 2 at diagonal positions can be alternately folded in a state of being shifted inward in the length direction of the bar member 12 as shown in FIG. 1(a).

[0018] As a result, it becomes possible to fold and store the leg members 2 of the furniture F with legs without interfering with the leg members 2 on both the left and right sides. On the other hand, when using the folded furniture F with legs, the leg members 2 at the four corners of the top plate portion 1 are each erected, and the slidable connecting member 3 is moved outward in the length direction of the bar member 12, so that it can be changed to the usage forms as shown in FIGS. 3(a), 3(b) and 4.

[0019] When the above-mentioned leg member 2 is erected, as shown in Fig. 1(a), only a set of connecting members 3 at diagonal positions are configured to be slidable, and when the slide member 31 provided on the bottom surface of the connecting member 3 is fastened to the bar member 12 to fix the position of the connecting member 3, first, the leg member 2 hinged to the non-slidable connecting member 3 is erected, then the slidable connecting member 3 is moved and fixed, and then the leg member 2 hinged to the slidable connecting member 3 is erected. When folding the leg member 2, the reverse procedure is performed.

[0020] [2] Regarding the top plate [2-1] Material of the slatted board Next, each component of the above-mentioned furniture F with legs will be described. First, regarding the material of the slatted board 11 of the top plate portion 1, in this embodiment, a wood-plastic plate is used, but any other plastic material (for example, polypropylene, ABS resin, vinyl chloride resin, etc. used alone or in combination), wood, or metal material (for example, aluminum, stainless steel, etc.), composite material, etc. can be used as long as it is a general material used for the top plate of outdoor or indoor furniture, and it is not particularly limited.

[0021] [2-2] Shape and arrangement of the slatted board Regarding the shape of the above-mentioned slatted board 11, not only plates but also square bars, round bars, square pipes, round pipes, etc. can be used. Regarding the dimensions (width, length, thickness) of the above-mentioned slatted board 11, they can also be appropriately changed according to the use of the furniture F with legs and the material of the slatted board 11. Regarding the number of the above-mentioned slatted boards 11, in this embodiment, six slatted boards 11 are arranged, but two to five, or seven or more slatted boards 11 can also be arranged. In this embodiment, the top plate portion 1 is configured for a table, but it can also be configured as the top plate of other furniture F with legs (for example, benches, shelves, stands, planters, etc.).

[0022] In this embodiment, the top plate portion 1 is composed only of the corrugated plates 11 arranged with their longitudinal directions aligned. However, an outer frame may be provided on the outer periphery of the top plate portion 1, and the corrugated plates 11 may be arranged inside this outer frame. Also, regarding the arrangement of the above corrugated plates 11, in this embodiment, the corrugated plates 11 are arranged with a small gap therebetween. However, they can also be arranged with a large gap between adjacent corrugated plates 11, or they can be arranged without a gap. When there is no gap between the corrugated plates 11, they can also be connected by ridges (convex rib portions) or grooves (concave groove portions). Further, in this embodiment, it is composed of one type of corrugated plate 11, but it is also possible to arrange a plurality of types of corrugated plates 11 having different width dimensions, materials, and cross-sectional shapes.

[0023] [2-3] Material and Shape of the Bar Material Regarding the material of the bar material 12 of the top plate portion 1, in this embodiment, a square tube made of aluminum is used. However, any material having a predetermined rigidity may be used. For example, other metal materials (such as stainless steel or iron, etc.), plastic materials, composite materials (such as fiber-reinforced plastics, etc.) can also be used. Also, regarding the shape of the above bar material 2, it is not particularly limited as long as it is in a linear plate-like or rod-like form. Further, in this embodiment, two bar materials 12 are used for the top plate portion 1, but it is also possible to configure one bar material 12 by dividing it into a plurality of parts. In that case, in this specification, a plurality of parts arranged in a straight line are regarded as one bar material 12.

[0024] [2-4] Mounting Structure of the Bar Material In this embodiment, insertion holes are formed at predetermined intervals on the bottom surface side of the bar material 12, and the bar material 12 is bolted and attached to each corrugated plate 11 through these insertion holes. However, the attachment of the bar material 12 to the corrugated plate 11 can also be performed by screwing, nailing, adhesion, welding, male-female fitting, etc. Also, regarding the arrangement of the above bar material 12, in this embodiment, it is arranged on both sides in the longitudinal direction (left and right in the front view) of the corrugated plate 11. However, the interval between the bar materials 12 can be changed as appropriate. Also, when the corrugated plate 11 is long, only the bar material 12 can be provided at the left and right intermediate positions.

[0025] [2-4] Bar material guide holes In this embodiment, as shown in Fig. 1(a), a plurality of rows of elongated guide holes 12a for mounting the connecting member 3 are formed in parallel on the bottom surface of the bar material 12. As shown in Fig. 2, slide members 31 (bolts and nuts) are fastened to these guide holes 12a to mount the connecting member 3. Also, by loosening the bolts and nuts of the slide member 31, the connecting member 3 can be slid along the guide holes 12a. Thereby, the connecting member 3 and the leg member 2 can be smoothly slid without rattling.

[0026] Regarding the number of the guide holes 12a of the bar material 12, in this embodiment, as shown in Fig. 1(a), two rows are formed, but it is also possible to form only one row or three or more rows. Also, regarding the guide holes 12a of the bar material 12, they can be appropriately changed according to the slide member 31 of the connecting member 3. For example, a channel-shaped guide rail can be separately attached to the bottom surface of the bar material 12, or a convex guide rail can be separately attached to the bottom surface of the bar material 12 and a slide member 31 provided with a concave groove can be mounted.

[0027] Also, in this embodiment, as shown in Fig. 1(a), the guide holes 12a are formed only on one side in the length direction of one bar material 12, but the guide holes 12a can also be formed on both sides in the length direction of the bar material 12. In that case, all the leg members 2 and the connecting members 3 at the four corners attached to the top plate portion 1 can be configured to be slidable along the bar material 12. Also, when the size of the top plate portion 1 is large or when three or more leg members 2 are attached to one bar material 12, the guide holes 12a can also be formed at the intermediate portion in the length direction of the bar material 12.

[0028] [3] Regarding the leg member [3-1] Material and shape of the leg member Regarding the material of the above-mentioned leg member 2, in this embodiment, a square tube made of aluminum is used, but any material having a predetermined rigidity may be used. For example, other metal materials (such as stainless steel, iron, etc.), plastic materials, composite materials (such as fiber-reinforced plastics), etc. can also be used. Also, regarding the shape of the leg member 2, it may be a square bar, round bar, or round tube other than a square tube, and a pyramid shape, cone shape, or curved shape other than a square prism shape or cylinder shape can also be adopted. Further, a rubber member, a caster, etc. can be attached to the grounding portion of the leg member 2.

[0029] Regarding the length of the above-mentioned leg member 2, in this embodiment, as shown in Fig. 1(a), the length of the leg member 2 is made larger than half of the interval between the pair of bar members 12. Therefore, in the state shown in Figs. 3(a)(b) and 4 with the leg member 2 erected, if the leg member 2 is folded as it is, the leg members 2·2 attached to different bar members 11 will interfere with each other. In this embodiment, since the position of the leg member 2 can be shifted and folded as shown in Figs. 1(a)(b), it can be folded without interfering the opposing leg members 2·2 with each other.

[0030] Also, in this embodiment, as shown in Fig. 2, one fixing pin hole 21 for attaching a lock pin is formed on each of the outer side surfaces (the front surface of the front leg member 2 and the rear surface of the rear leg member 2 in the front view) of the above-mentioned leg member 2. Regarding the lock pin, which will be described later, these fixing pin holes 21 can also be formed on the side surfaces on both sides of the leg member 2, and can be omitted when the lock pin is not used.

[0031] [3-2] Number and Arrangement of Leg Members In this embodiment, the above-mentioned leg member 2 is attached to the four corners of the top plate portion 1, but the number of leg members 2 can also be six or more according to the dimensions of the top plate portion 1 and the strength of the leg member 2. Also, when six or more leg members 2 are used, the leg member 2 can be attached to the intermediate position in the left-right direction or the front-rear direction of the top plate portion 1.

[0032] [4] Regarding the Connecting Member [4-1] Material and Shape of the Connecting Member Regarding the above connecting member 3, in this embodiment, an aluminum U-shaped metal fitting is used. However, it is not particularly limited as long as it has a shape with an attachment portion to the bar member 12 and an attachment portion to the hinge 4. For example, an L-shaped metal fitting with a side wall on one side or a metal fitting with side walls on three sides can be used. When the lock pin P is not used, a metal fitting without a side wall can also be used. Regarding the material of the connecting member 3, other metal materials (e.g., stainless steel, iron, etc.), plastic materials, composite materials (fiber-reinforced plastics, etc.) can also be used.

[0033] Also, in this embodiment, as shown in FIGS. 1(b) and 3(a), two insertion pin holes 32 for attaching the lock pin P are formed on the outer side surfaces of the connecting member 3 (the front surface of the front connecting member 3 and the rear surface of the rear connecting member 3 in the front view). These insertion pin holes 32 are provided at positions that communicate with the fixing pin holes 21 in the state where the leg member 2 is folded and at positions that communicate with the fixing pin holes 21 in the state where the leg member 2 is erected, respectively. Thereby, as shown in FIGS. 1(a)(b), in the state where the leg member 2 is folded, or as shown in FIGS. 3(a)(b), in the state where the leg member 2 is erected, the lock pin P is attached from the insertion pin holes 32 to the fixing pin holes 21, so that the leg member can be fixed in the folded state or the erected state. Regarding the lock pin P, in this embodiment, it is attached only to one side of the leg member 2, but it can also be attached to both sides.

[0034] [4-2] Attachment Structure of Connecting Member and Slide Member Regarding the attachment of the connecting member 3 to the bar member 12, in this embodiment, as shown in FIG. 1(a), the non-slidable connecting member 3 is screwed and attached to the bottom surface of the bar member 12. However, as a method of attaching the non-slidable connecting member 3, it can also be performed by nailing, adhesion, welding, concavo-convex fitting, etc. Regarding the slidable connecting member 3, in this embodiment, as shown in FIG. 1(a), it is attached to the bottom surface of the bar member 12 using a slide member 31 (bolt and nut). However, as long as the slide member 31 is slidable in the state of being attached to the bar member 12, other than bolt and nut can also be used.

[0035] Also, in the present embodiment, although two bolt - nuts, which are the slide members 31, are used for each of the two rows of guide holes 12a of the bar member 12, the number of slide members 31 used can be appropriately changed. In addition, since the screwing parts of the slide members 31 and the connecting member 3 are arranged so as to be accommodated inside the square tube in a state where the leg member 2 is erected as shown in FIG. 4, there is no interference with the leg member 2.

[0036] [5] Regarding the hinge Regarding the above - mentioned hinge 4, as shown in FIGS. 2 and 4, in the present embodiment, it is attached to the end in the folding direction of the leg member 2 (the inner side in the left - right direction in the front view) of the connecting member 3. Specifically, a metal fitting, which is the connecting member 3, is attached in a state of protruding from the bar member 12, and the hinge piece of the hinge 4 is attached to this protruding part. Also, the other hinge piece of the hinge 4 is fixed to the side surface of the leg member 2. As a result, since the leg member 2 is hinge - connected to the connecting member 3, the leg member 2 can be folded freely.

[0037] Regarding the above - mentioned hinge 4, a plurality of them can be arranged side by side and used for one leg member 2 according to the shape of the leg member 2 and the like. Also, in the present embodiment, the hinge 4 is used to hinge - connect the leg member 2 and the connecting member 3. However, by providing a male or female convex part at the base of the leg member 2 and pivotally supporting this convex part on the female or male convex part of the connecting member 3, the two can be hinge - connected without using the hinge 4.

Explanation of Reference Numerals

[0038] 1 Top plate part 11 Snow board 12 Bar member 12a Guide hole 2 Leg member 21 Fixing pin hole 3 Connecting member 31 Slide member 32 Insertion pin hole 4 Hinge P Lock pin

Claims

1. In a piece of furniture with legs, comprising a slatted top plate portion formed by arranging a plurality of slat plates side by side in the width direction of the slat plates, and a folding leg member provided on the lower surface side of the top plate portion, on the lower surface side of the top plate portion, a pair of linear bar members are attached in parallel at a predetermined interval and so as to span the plurality of slat plates, and at least one or more connecting members are slidably attached to these bar members, and further, the leg member is hingedly connected to the other bar member so as to be rotatable toward the other bar member with respect to the connecting member, the leg member is provided at the four corners of the top plate portion, and only a set of leg members arranged at diagonal positions of the top plate portion are hingedly connected to the slidable connecting member. A piece of furniture with legs.

2. In a piece of furniture with legs, comprising a slatted top plate portion formed by arranging a plurality of slat plates side by side in the width direction of the slat plates, and a folding leg member provided on the lower surface side of the top plate portion, on the lower surface side of the top plate portion, a pair of linear bar members are attached in parallel at a predetermined interval and so as to span the plurality of slat plates, and at least one or more connecting members are slidably attached to these bar members, and further, the leg member is hingedly connected to the other bar member so as to be rotatable toward the other bar member with respect to the connecting member, the bar member is formed from a square tube, and a plurality of rows of guide holes for attaching the connecting member are formed in parallel on the bottom surface of the bar member. A piece of furniture with legs.

3. In a piece of furniture with legs, comprising a slatted top plate portion formed by arranging a plurality of slat plates side by side in the width direction of the slat plates, and a folding leg member provided on the lower surface side of the top plate portion, on the lower surface side of the top plate portion, a pair of linear bar members are attached in parallel at a predetermined interval and so as to span the plurality of slat plates, and at least one or more connecting members are slidably attached to these bar members, and further, the leg member is hingedly connected to the other bar member so as to be rotatable toward the other bar member with respect to the connecting member, the leg member is formed from a square tube and fixing pin holes are formed on the side surface, and the leg member is hingedly connected to an L-shaped or U-shaped connecting member having insertion pin holes on the side wall, and by attaching a lock pin through the insertion pin holes to the fixing pin holes, the leg member can be fixed in an upright state or a folded state. A piece of furniture with legs.

4. The leg furniture according to any one of claims 1 to 3, wherein the length of the leg member is greater than half of the distance between the pair of bar members.

5. The leg furniture according to any one of claims 1 to 4, wherein the top plate portion is configured for a table or a bench.

Citation Information

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