JPH08266367A - Leg body for furniture - Google Patents

Abstract

PURPOSE: To provide multiple lightweight and firm leg bars formed in the radial direction and having a good external appearance for a leg body supporting a piece of furniture such as a chair. CONSTITUTION: The laterally long leg bar 7 having an inverse U-shaped longitudinal section is provided with a pair of suspension pieces 8, 8 parallel with each other in the same direction as the leg bar 7 and a zigzag bent rib 9 is formed between both suspension pieces 8, 8 over the whole length of them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of laterally long legs supporting a pedestal of a furniture such as a chair or a desk.

[0002]

2. Description of the Related Art In furniture such as chairs and desks, a plurality of radial rods are provided at the lower end of a pedestal supporting a seat or a top plate, and a caster is attached to the tip of each rod. Is often used.

Such a leg body needs to have a strength sufficient to withstand the load of furniture received through the pedestal, and it is desirable that it is lightweight so that the furniture can be easily moved, and the appearance is also good. Is desirable.

[0004]

The radial rods in the legs are subject to strong bending or twisting during the use of furniture, so they must be thick in order to obtain the required strength. As the weight increases, the appearance will be impaired.

[0005]

According to the present invention, the above problems can be solved as follows. (1) In a furniture leg body in which a plurality of leg rods are provided in a radial direction from a central base portion for fitting and supporting a pillar in furniture, and a grounding portion is provided at the tip of each leg rod, the leg rods are longitudinally cut. Inverted U shape, with the inside of it facing the longitudinal direction of the leg rod,
A pair of droops that are parallel to each other and whose upper end, base end, and tip are connected to the top wall of the rod, the center base, and the grounding portion, respectively, and whose height gradually decreases from the base end toward the tip. Provide a piece.

(2) In the above item (1), a pair of hanging pieces are bent in a lightning bolt shape, and the bent portion is connected to one of the hanging pieces, and both inner and outer ends are respectively connected to the central base and the ground. A bent rib that connects to the section is provided.

(3) In the above item (1) or (2), the pedestal support hole in the central base is a tapered hole whose diameter is reduced downward, and the hanging piece is connected over the entire length of the outer circumference of the central base. Set up.

(4) In any one of the above items (1) to (3), it is assumed that the top surface of each leg rod is curved downward in a circular arc shape from the central base portion toward the ground contact portion.

[0009]

According to the leg body of the present invention, a space is provided between both side pieces and a pair of hanging pieces, and a space is provided between the hanging pieces, and the height of each hanging piece is such that the central base portion has a large load. Since the size is so high, the strength and rigidity can be increased without increasing the weight of the legs.

According to the second aspect of the invention, the bending rib further increases the strength of the leg.

According to the third aspect of the present invention, the tapered hole reliably supports the pedestal, and rattling and lowering of the seat are prevented.

According to the invention of claim 4, the load received by the legs is distributed to the respective parts in correspondence with the strength of the respective parts in the length direction of the leg rod, so that the weight of the legs can be lightened without waste. it can.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention, in which the lower end of a pedestal (1) for supporting a seat (not shown) of a chair has a tapered bearing which is slightly reduced in diameter downward. From the central base (3) having the hole (2), the radial direction is directed at an equal angle 5
The central base portion (3) of the leg body (5) on which the leg rod (4) of the book is projected is fitted. A caster (7) is attached to the vertical bearing (6) provided at the free end of each leg rod (4).

The leg rod (4) has an inverted U-shape in vertical cross section, and its upper surface is gently curved in a downward arc shape from the base end toward the free end, and its both side pieces (4a) are bent. The height is almost equal over the entire length.

From the top surface of the leg rod (4), the pair of rods (4) face in the same direction and are arranged side by side, and the inner and outer ends are respectively connected to the central base (3) and the bearing (6). The hanging piece (8) is hung. The height of each hanging piece (8) gradually decreases from the base end toward the free end, and the hanging piece (4) at the tip of the rod (4).
(8) and the side piece (4a) of the leg rod (4) are substantially even.

The pair of hanging pieces (8) (8) are connected by a bending rib (9) bent in a lightning shape, and the bent portions (9a) are alternately continuous with the hanging pieces (8) and both ends are Is continuous with the central base (3) and the bearing (6).

The above-mentioned leg body (5) is formed by integrally molding each member other than the casters (7) with a hard synthetic resin, but is made of steel or the like by slightly changing the shape or size of the member. You can also

[0018]

According to the first aspect of the present invention, since the pair of hanging pieces are provided between the both side pieces of the leg rod and the pieces are separated from each other, the lateral width of the leg rod is compared with the weight. And the height of the hanging piece corresponds to the load on each part of the leg rod,
Since the height increases as it gets closer to the central base, the leg rod can be made lightweight and have high strength against bending and twisting loads. Moreover, since the hanging piece having a large height is covered by the both side pieces of the leg rod on the upper side, the hanging piece cannot be seen from the obliquely upper side of the leg rod, and the legs are visually smart.

In the leg body according to the second aspect, the lightweight ribs covered with the two hanging pieces further enhance the strength of the leg body according to the first aspect.

According to the third aspect of the present invention, the support hole, which is a tapered hole whose diameter is reduced downward, surely supports the pedestal,
Prevent rattling and falling of furniture.

In the leg body according to the fourth aspect, the load received by the leg body is distributed to each portion according to the strength of each portion in the length direction of the leg rod, so that the leg rod can be lightened without waste. .

[Brief description of drawings]

FIG. 1 is a central longitudinal front view of a lower portion of furniture including a leg of the present invention.

FIG. 2 is a central longitudinal front view of a leg of the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along line BB in FIG.

5 is a view taken along the line CC of FIG.

[Explanation of symbols]

 (1) Pillar (2) Support hole (3) Central base (4) Leg rod (4a) Side piece (5) Leg (6) Bearing (7) Caster (8) Hanging piece (9) Bending rib (9a ) Bent part

Claims (4)

[Claims] 1. A furniture leg having a plurality of leg rods projecting in a radial direction from a central base portion for fitting and supporting a pedestal in furniture, and a grounding portion provided at the tip of each leg rod. , With a vertical U-shaped cross section, inside of which is oriented in the longitudinal direction of the leg rods and parallel to each other, and the upper end, the base end and the tip are connected to the top wall of the leg rod, the central base and the grounding part, respectively. , A leg for furniture provided with a pair of hanging pieces whose height gradually decreases from the base end toward the tip. 2. A bending rib, which is bent in a lightning shape, is connected to one of the hanging pieces, and the inner and outer ends are connected to a central base and a grounding portion, respectively, between a pair of hanging pieces. The leg for furniture according to claim 1. 3. The pedestal support hole in the central base portion is a tapered hole whose diameter is reduced downward, and the hanging piece is continuously provided over the entire length of the outer circumference of the central base portion.
The furniture leg described. 4. The furniture leg body according to claim 1, wherein a top surface of each leg rod is curved downward in a circular arc shape from a central base portion toward a ground contact portion.