JPH09390A - Chair for working - Google Patents

Abstract

PURPOSE: To provide a chair for working which enables a worker working with his knees bent and folded to work for a long time by restraining obstacles to his walking, knees or the like as much as possible, and facilitates walking and removable attachment. CONSTITUTION: A lower frame 5 in a base body 1 is provided with a first support 2 abutting against the knee k and an upper frame 6 in the base body 1 is provided with a second support 3 abutting against the hip b, while a fastening means 4 to fix its one end to the base body 1 for connecting the base body 1 to the leg part is fitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work chair used when a worker works in a posture in which a knee is bent or bent.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 10, when a worker works in a posture in which a knee is bent or bent, when the work is performed for a long time, a heavy load is applied to the waist, toes or knees. Gradually, the lower back becomes painful and the toes are bent, causing poor blood flow and numbness.

Also, since the knees are also in direct contact with the ground,
There was a problem that the weight was taken as it was and it hurt.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems. A lower frame of a base body is provided with a first support member that abuts against a knee portion, and an upper frame of the base body is provided with a buttock. By providing a second support member that abuts on the base portion and fixing means for fixing one end portion to the base body and connecting the base body to the leg portion, it is possible for an operator to perform the work in a posture in which the knee is bent or bent. To provide a work chair that can reduce workability such as waist, toes, and knees as much as possible, improve work efficiency and enable long-term work, and that can be easily walked and detached. It is an object.

[0005]

Means for Solving the Problems The means of the present invention for achieving the above-mentioned object is provided in a work chair that supports a knee and a hip when a human body bends or bends the knee, such as on the ground. A base body composed of a lower frame grounded to the lower frame and an upper frame standing upright from the lower frame, a first support body provided on the lower frame of the base body and abutting on the knee portion, and a first support body provided on the upper frame of the base body and abutting on the hip portion. A work chair is provided with a second support and fastening means for fixing one end to the base and connecting the base to the leg.

Further, the lower frame of the base body is provided with adjusting means for freely adjusting the length thereof.

Both the first and second supports or the first support is formed of an elastic member.

A warming agent is provided on both or one of the first and second supports.

A projection for contacting the human body is provided on both or one of the first and second supports.

[0010]

The working chair of the present invention configured as described above has the following operation.

The first support body provided on the lower frame of the base body is applied to the knee to attach the base body to the knee portion of the leg by the fastening means, and further, the fastening means provided on the upper frame of the base body is attached to the ankle portion of the leg. When attached, the work chair is integral with the legs and has no bearing for walking.

In this state, when the worker works in a posture in which the knee is bent or bent, when the knee is bent and the knee portion is attached to the ground or the like, the first support body makes the knee portion and the ground contact with each other. The knee portion is elastically grounded by being interposed therebetween.

Then, when the person sits down, the buttocks hit the second support body attached to the upper frame of the base body, and the weight of the worker is supported by the second support body.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a work chair according to the present invention will be described below with reference to the drawings.

In FIGS. 1 to 7 and 9, A is a work chair for stably supporting the knee portion k and the hip portion b when the human body bends or bends the knee. , The first support 2, the second support 3, and the fastening means 4 are basically configured.

The above-mentioned substrate 1 is made of metal or is made of a robust and lightweight synthetic resin, wood, etc.
As shown in FIGS. 6, 7, and 9, the lower frame 5 is formed into a hollow pipe shape or a plate shape as shown in FIG. 5 and is grounded to the ground, floor, road surface, or the like. , This bottom frame 5
1 and 4 to 6, a reinforcing frame 7 extending from the upper frame 6 and connected to the lower frame 5 is provided.

As shown in FIGS. 2 and 5, the base body 1 is provided in a pair on the left and right with legs sandwiched therebetween, and it is preferable that the base body 1 is symmetrically formed. At one or more locations.

The substrate 1 may have only one side as long as the required strength can be obtained.

On the lower side of the lower frame 5, slip stoppers 9 may be provided at one place or a plurality of places.

Further, this substrate 1 is as shown in FIGS. 3 and 4. There is a case where a cutout portion 5a that does not contact the ground is provided in the middle portion of the lower frame 5, but it has a basic structure of the base body 1 and both require a certain strength for the user. To do.

The above-mentioned first support 2 is provided on the lower frame 5 of the base 1 so that one side surface contacts the knee portion k and the other side surface contacts the ground contact surface such as the ground. It is formed of an elastic member that elastically contacts k.

The contact of the ground surface on the other side is not always necessary, and it is sufficient that the lower frame 5 of the base body 1 is firmly supported.

The elastic member is, for example, an integral core member 2 made of synthetic resin such as sponge or urethane.
0, cotton material, string material, elastic piece, granular material, etc. may be used alone, and the outer periphery of this material is tough and does not easily get dirty, or dirt easily drops It may be covered with a member, for example, a synthetic resin cover material 21.

As shown in FIG. 8, the first support body 2 is provided with a concave cutout portion 10 so that the knee portion k fits into it. 1
1 fixed.

The above-mentioned anti-slip 9 may be provided on the bottom of the first support 2, and if the lower surface is given a predetermined notch, the anti-slip effect will be further enhanced.

The above-mentioned second support 3 is fixed to the upper frame 6 of the base body 1 by a stopper member 11 such as a pin,
The upper part thereof abuts on the buttocks b, and the lower part abuts on the heels h of the legs, and these abutting surfaces are curved surfaces conforming to the buttocks b and the heels h. It is formed of a member having elasticity of the same effect as the above-mentioned first support body 2 that elastically abuts against.

The upper frame 6 to which the second support 3 is attached is
When the bottom b is supported by the second support 3, the height of the leg located below the second support 3 is not compressed, and
It is preferable to set the leg at a position where it does not float by the fastening means 4.

The above-mentioned fastening means 4 is one in which one end of the fastening means 4 is fixed to the base body 1 by a fastening member 11 such as a pin to removably connect the base body 1 to the leg portions, and a belt type is used. In addition, in the vicinity of the first support body 2, the first support body 2 is attached to the knee portion k so as to be pressed against the knee portion k, and is pressed against the second support body 3 in the vicinity of the second support body 3. As described above, it is attached to the ankle portion a, and the detachment thereof is performed by the conventional attachment member 12.

Although not shown, the mounting member 12 can adjust the belt length by a sheet fastener or a hook, and is adapted to the size and the state of the foot.

Therefore, the work chair A configured as described above is used in floor work such as tile application, bending work such as agricultural work and gardening,
First, the first support 2 attached to the lower frame 5 of the base body 1.
The knee portion k is applied to the concave portion 10 of the
The front portion of the lower frame 5 in is attached to the rear portion of the knee portion k of the leg.

Further, when the heel portion h of the leg is brought into contact with the lower side of the second support 3 and attached to the ankle portion a of the leg by the fastening means 4 provided on the upper frame 6 of the base 1, the work chair A becomes integral with the leg, and as shown in FIGS. 1 and 6, there is no support for walking with the work chair A attached.

In this state, when the worker performs the above-mentioned work, when the knee is bent and the knee portion k is attached to the ground as shown in FIG. With respect to the above, the first support 2 is interposed between the knee k and the ground, and the knee k is elastically grounded by the elasticity of the second support 2.

Since the toe and the waist are burdened when the knee is just put on the ground, if the person sits down as it is, the second support member 3 attached to the upper frame 6 of the base body 1 has a hip portion at the upper portion. b hits, and the weight of the operator is supported by the second support body 3, that is, the base body 1.

As a result, since the toe does not need to support the weight, the fingertip can be extended as shown in FIG. 1, so that no numbness due to poor blood circulation occurs and the toe is kneeled. The clothing at this time is not soiled by the first and second supports 2 and 3.

When moving to this position from this seated state, if standing up as it is, the working chair A is supported on the legs by the fastening means 4 and moved along with walking, as shown in FIG. However, there is no sense of discomfort, and when the worker again bends and bends his knees to perform the same operation as described above, the weight of the worker is stably supported on the work chair A.

In FIG. 7, A is the lower frame 5 of the base 1.
In the modified example 1, the lower frame 5 of the base body 1 is provided with the adjusting means 14 capable of freely adjusting the length of the lower frame 5, and the first and second support bodies 2 and 3 contacting the human body are provided. The contact position and the relationship thereof, and the attachment position of the fastening means 4 to the leg of the base body 1 can be arbitrarily changed.

The adjusting means 14 is formed by cutting out an intermediate portion of the hollow lower frame 5 and inserting an adjusting frame 15 which is movable into and out of the lower frame 5 into the adjusting frame 15. The support 2 is attached.

The lower frame 5 and the adjustment frame 15 are connected by a stop connecting rod 16 so that they can be adjusted and moved freely, so that they do not move when they are used. The adjustment hole 17 is formed in the lower frame 5. And a stop hole (not shown) of the adjusting frame 15 are combined to be integrated.

The adjusting means 14 includes a lower frame 5 and an adjusting frame 15.
As for the relative relationship to be inserted and fitted, whichever may be the inner side, further, as another means, although not shown, several types of lower frames 5 having different lengths are prepared, It can be replaced with a screw or a clamp depending on the body shape of the user.

Further, the stop connecting rod 1 between the lower frame 5 and the adjusting frame 15
In addition to the adjustment / connection by 6, although not shown, a screw type, a clamp type or the like is used.

It should be noted that a warming agent 17 such as a simple pad can be provided on both or one of the first and second supports 2 and 3, as shown in FIGS. 8 and 9.
As shown in FIG. 8, fasteners 22 are attached to the openings provided at the side portions of the first and second supports 2 and 3, and the warming agent 17 is built in from the openings to cool and cool. It exerts a heating effect when working on the ground.

The first and second supports 2 and 3 provided with the fastener 22 can also be used as a container for small items other than the heating agent 17.

Further, as shown in FIG. 9, projections 2 that come into contact with the human body, for example, come into contact with the urn of the hip b (buttock), as shown in FIG. 9, on both or one of the first and second supports 2 and 3.
If one or a plurality of 3 are provided, the acupressure effect can be obtained during the work.

Reference numeral 25 in FIG. 9 denotes a small case attached to the lower frame 5 of the base 1.

[0045]

According to the present invention configured as described above, the weight of the worker is supported by this chair even when the worker works for a long time in a bent or bent posture. Since the knees, toes, hips, etc. are not overloaded, it is possible to work comfortably, which is good for health management, and the second support can maintain the sitting posture.

Since the structure is attached to the legs, it does not interfere not only when working but also when walking, and the attachment / detachment to / from the legs is smooth and can be done with one touch.

By providing adjusting means on the lower frame of the base body, it is possible to adjust to the length of the user's foot. Therefore, the relative position with respect to the first and second supports, the attaching position of the legs, etc. are appropriately adjusted. It can be used in the optimum condition.

By providing the first or second support with a protrusion that comes into contact with the human body, an acupressure effect on the human body can be obtained during use.

By providing the first or second support with a heating agent, the work is heated even in a cold and cold place where the working environment is poor. And so on.

[Brief description of drawings]

FIG. 1 is a front view showing a usage state of a first embodiment of a work chair according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of a work chair showing a modified example of the base body in FIG.

FIG. 4 is a front view of a work chair showing a modified example of another base body in FIG.

5 is a front view of a work chair showing still another modified example of the base body in FIG. 1. FIG.

FIG. 6 is a front view showing a state in which the work chair in FIG. 1 is attached to a standing position.

FIG. 7 is a perspective view showing an example in which adjusting means is provided on the base of the work chair in FIG.

8 is a perspective view showing an example in which a warming agent is provided on the first support in FIG.

9 is a front view of a work chair in which a protrusion is provided on the second support in FIG.

FIG. 10 is an explanatory diagram showing a conventional working state in a bent posture.

[Explanation of symbols]

 A work chair b hip part k knee 1 base 2 first support 3 second support 4 fastening means 5 lower frame 6 upper frame 14 adjusting means 17 warming agent 23 protrusion

Claims (5)

[Claims] 1. A base body comprising a lower frame that is in contact with the ground or the like and an upper frame that stands up from the lower frame in a work chair that supports the knees and hips when a human body bends or bends the knees. A first support body provided on a lower frame of the base body and abutting on a knee portion; a second support body provided on an upper frame of the base body and abutting on a hip portion; A work chair comprising: fastening means connected to a leg portion. 2. The work chair according to claim 1, wherein the lower frame of the base body is provided with adjusting means for freely adjusting the length thereof. 3. The work chair according to claim 1, wherein both the first and second supports or the first support is formed of an elastic member. 4. The work chair according to claim 1, wherein a warming agent is provided on both or one of the first and second supports. 5. The work chair according to claim 1, wherein a projection that comes into contact with a human body is attached to both or one of the first and second supports.