JP2002325652A - Footrest device for chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a footrest device for chairs which is versatile to apply to chairs with legs in different configurations, maintains stability when the feet are put on the footrest, and is user-friendly. SOLUTION: The footrest device for chairs is made up of a leg part 5 with at least more than three radial supporting legs and a shaft 8 put upright in the center and a seat part 6 installed on the leg part 5. An attaching part 2 for a footrest member 1 is attached to the shaft in a manner that the attaching part 2 can move vertically within a predetermined range while an elastic force is applied to the attaching part 2 upward. A plurality of contact legs 4 to the ground are downwardly placed at the positions corresponding to the space between the supporting legs and at the end of a footrest 3 extending to the side from the attaching part. When the footrest member is moved downward against the elastic biasing force, the contact legs to the ground make contact with a floor F.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for placing a foot on a chair, and more particularly, to placing a foot on a small-sized occupant when the occupant places the foot on the floor or sits on a seat having a high height. The present invention relates to a footrest device for a chair capable of carrying out.

[0002]

2. Description of the Related Art Conventionally, there has been known a footrest device for a chair which can be put on by a seated person having a small physical size, or when he / she sits on a seat set at a high height for drafting or the like. Provided. For example, the present applicant has also provided a chair foot rest apparatus as shown in FIG.

[0003] The chair footrest device shown in Fig. 5 is composed of a leg portion 100 having at least three or more legs 101,...
00 is mounted on the lower surface of an arc-shaped footrest plate 300, and fitting portions 301,... Are fitted to the supporting legs 101,. It is attached to.

However, since this footrest device has a structure in which the fitting portion 301 is fitted to the support leg 101, a chair having a different shape of the leg portion 100 is manufactured with a fitting portion suitable for the chair. Must be expensive,
The versatility was poor.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned situation, the present invention is intended to solve the problem that the present invention has versatility that can be applied to chairs having different shapes of legs. An object of the present invention is to provide a stable and convenient chair footrest device.

[0006]

According to the present invention, in order to solve the above-mentioned problems, a seat is mounted on a leg having at least three or more supporting legs extending radially and a shaft standing upright at a central portion. A mounting device for a chair, comprising: a mounting portion for mounting a foot mounting member on the shaft in a vertically movable and elastically upward state within a predetermined range; and a side portion from the mounting portion. At the tip of the extended footrest, a plurality of grounding legs are provided at positions corresponding to the respective legs, and when the footrests are moved down against the elastic urging force, the grounding legs are moved to the floor. A chair footrest device grounded on a surface was constructed.

Here, a step having an upper surface is formed at the lower end of the shaft, a regulating member is attached to the upper part of the shaft, and a through hole formed at the center of the mounting portion of the footrest member is formed. It is preferable that the shaft is fitted to the shaft between the step and the regulating member so as to be vertically movable, and a compression coil spring is wound around the shaft between the step and the mounting part.

[0008] Further, the footrest member is formed by connecting an arc-shaped or ring-shaped footrest portion to a tip of a plurality of support rods extending radially from a mounting portion. It is also preferable that one of a concave portion and a convex portion for fitting and restricting rotation is formed on the upper surface of the mounting portion of the footrest member.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 1 to 3 show a first embodiment of a footrest device for a chair according to the present invention, wherein reference numeral 1 denotes a footrest member, 2 denotes a mounting portion, 3 denotes a footrest portion, 4 denotes a ground leg, and 5 denotes a footrest. The reference numeral 6 denotes a leg of the chair, and 6 denotes a seat of the chair.

The footrest device according to the present invention comprises a seat portion 6 mounted on a leg portion 5 having at least three or more legs 7,... Extending radially and a shaft portion 8 erected at the center. The present invention is applied to a chair, and the mounting portion 2 of the footrest member 1 is mounted on the shaft portion 8 in a state where the mounting portion 2 is vertically movable within a predetermined range and is elastically urged upward, and is extended laterally from the mounting portion 2. A plurality of grounding legs 4 are provided at positions corresponding to the legs 7, 7 at the tip of the footrest portion 3, and when the footrest member 1 is moved down against the elastic urging force, the grounding is performed. The legs 4,... Are in contact with the floor F.

Here, the chair has five supporting legs 7,.
Are mounted on the upper end of the shaft 8 so that the height of the seat 6 is adjustable and rotatable. The lower end of the shaft 8 has an upper surface. A step 10 is formed.

A regulating member 11 is provided above the shaft 8.
And a through-hole 12 formed in the center of the mounting portion 2 of the footrest member 1 is externally fitted to the shaft portion 8 between the step portion 10 and the regulating member 11 so as to be able to move up and down. 10
A compression coil spring 13 is wound around the shaft portion 8 between the mounting portion 2 and the footrest member 1 to be elastically urged upward.

When the foot is not placed on the foot rest 1, the foot rest 1 is held against the regulating member 11 by the elastic biasing force of the compression coil spring 13. The legs 4 are apart from the floor F.
Therefore, the chair can be freely moved using the casters 9,. When the foot is placed on the footrest member 1 as shown in FIG. 2, the footrest member 1 moves downward against the elastic biasing force of the compression coil spring 13, and the grounding legs 4,. Stabilizes on contact with F. At this time, it is preferable to provide a pad 14 made of rubber or the like at the lower end of each of the grounding legs 4 so as to increase the sliding friction resistance between the grounding leg 4 and the floor surface F.

More specifically, the footrest member 1 has an arcuate footrest portion 3 connected to the distal ends of three support rods 15 extending radially from the mounting portion 2. here,
As in the second embodiment shown in FIG.
Are five supporting rods 15 extending radially from the mounting portion 2,
May be provided with a ring-shaped foot rest 3 at the end of. However, in the present invention, the shape of the footrest member 1 is not particularly limited, and can be appropriately modified.

Further, one of a concave portion 16 and a convex portion 17 for fitting and regulating rotation are formed on the lower surface of the regulating member 11 and the upper surface of the mounting portion 2 of the footrest member 1, respectively. In the present embodiment, the concave portion 1 is formed on the lower surface of the regulating member 11.
6 and 16, and the projection 1
7, 17 are formed. Further, the regulating member 11
It has a ring-like shape, and is fixed from the outside with screws 18 in a state of being fitted to the shaft portion 8. Of course, when the footrest 1 is not used, after removing the seat 6 from the shaft 8, the regulating member 11 may be removed, and the footrest 1 and the compression coil spring 13 may be removed.

In the present embodiment, a plurality of grounding legs 4 are provided at the positions corresponding to the legs 7, 7 at the tip of the footrest 3 extending laterally from the mounting portion 2. However, a slightly larger notch for receiving each supporting leg 7 may be formed in a part of a curtain plate provided below the tip of the foot rest 3. in this case,
A curtain plate portion having no cutout portion is equivalent to the above-described grounding leg 4.

[0017]

According to the first aspect of the present invention, there is provided a footrest device for a chair according to the present invention, wherein at least three or more legs extending radially and a shaft portion erected at a central portion are seated on a leg portion. A footrest device for a chair, comprising: a mounting portion of the footrest member on the shaft portion, which is vertically movable within a predetermined range and is elastically urged upward, and a side from the mounting portion. A plurality of grounding legs are provided at the ends of the footrests extending toward the corresponding positions between the legs, and when the footrests are moved downward against the elastic biasing force, the grounding legs are lowered. Because it is grounded on the floor, it has versatility that can be applied to chairs with different leg shapes, and is stable when the foot is placed on it, making it easy to use.

According to the second aspect, the structure is simple, and when the foot rest is not used, the foot rest can be easily removed from the leg. There is no difference.

According to the third aspect, in the case of the arc-shaped footrest, since the footrest is present only in the seating direction, there is no obstruction at the rear part, and the ring-shaped footrest is provided. In this case, the foot can be placed on the foot rest member regardless of the direction in which the seat is rotated.

According to the fourth aspect of the present invention, when the foot is not placed on the foot rest, the recess and the projection are fitted to each other so that the foot rest does not unexpectedly rotate and the foot rests even when the chair is moving. The mounting member is stabilized.

[Brief description of the drawings]

FIG. 1 is a partial longitudinal sectional side view when a foot rest is not placed on a foot rest in a state where a foot rest according to a first embodiment of the present invention is mounted on a chair.

FIG. 2 is a partial vertical sectional side view when a foot is placed on the foot placing member.

FIG. 3 is an exploded perspective view of the footrest device of the present invention.

FIG. 4 is a perspective view of a foot rest according to a second embodiment.

FIG. 5 is an overall perspective view showing a conventional foot rest device for a chair.

[Explanation of symbols]

 F Floor 1 Foot rest 2 Mounting part 3 Foot rest 4 Grounding leg 5 Leg 6 Seat 7 Supporting leg 8 Shaft 9 Caster 10 Step 11 Limiting member 12 Through hole 13 Compression coil spring 14 Pad 15 Support rod 16 Recess 17 Convex part 18 Screw 100 Leg part 101 Leg 102 Shaft part 200 Seat part 300 Footrest plate 301 Fitting part

Claims (4)

[Claims] 1. A footrest device for a chair, comprising: a leg having at least three or more legs extending radially and a shaft standing upright at a center, and a seat mounted on the leg. The mounting portion of the footrest member is vertically movable within a predetermined range and mounted in a state of being elastically urged upward, and the tip of the footrest portion extending laterally from the mounting portion corresponds to each of the legs. A plurality of grounding legs are provided at positions where the grounding legs move downward, and when the footrests are moved down against the elastic urging force, the grounding legs are grounded on the floor surface, and the footrest device for a chair is characterized in that . 2. A step having an upper surface at a lower end of the shaft, and a regulating member attached to an upper portion of the shaft,
A through-hole formed at the center of the mounting portion of the footrest member is fitted to a shaft portion between the step portion and the regulating member so as to be vertically movable, and a shaft portion between the step portion and the mounting portion. The footrest device for a chair according to claim 1, wherein a compression coil spring is wound around the footrest. 3. The chair according to claim 1, wherein the footrest member has a plurality of arc-shaped or ring-shaped footrest portions connected to the tips of a plurality of support rods extending radially from the mounting portion. Footrest device. 4. A concave part or a convex part for fitting and restricting rotation is formed on a lower surface of the regulating member and an upper surface of a mounting part of the foot rest, respectively. Chair footrest device.