JP2004041571A - Chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair that alleviates a strain loaded on an user when standing up by uplifting a seat body to allow the user to surely stand up while being supported in a stable state without sliding down when the seat body is uplifted. <P>SOLUTION: The chair that alleviates the strain loaded on the user when standing up by uplifting the seat body is covered with a material that prevents slipping at a limited part of the top surface of the seat part where the buttocks of the user contacts instead of covering the overall chair. Also, the chair that a limited part of the top surface of the seat part where the buttocks of the user contacts is covered with a material that prevents slipping is covered with a material that prevents slipping at parts of the top front side of the armrests where the palms of the user make contact with when the user stands up to support the user so that the user do not slide down when the seat body is uplifted and allow the user to surely stand up in a stable state. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair suitable for use by a person with reduced muscle strength in the legs and hips.
[0002]
[Prior art]
It is not easy for a user with weak legs to sit or stand on the seat of the chair.
[0003]
Generally, a chair has a seat for a user to sit down. This seat is usually provided substantially horizontally on the leg. For this reason, when the user sits on the seat, the user must lower the buttocks deeply to the height of the seat, and the operation places a heavy burden on the legs and hips.
[0004]
Further, when the user stands up, the buttocks which have been lowered deeply into the seat body must be raised, and furthermore, the buttocks must be extended from a bent state, so that the operation places a heavy burden on the legs and hips.
[0005]
A chair disclosed in Japanese Utility Model Publication No. S61-3401 has been proposed in order to reduce the burden on the feet and legs when a user sits or stands on a chair. In this chair, a seat body is rotatably provided with a front end side as a fulcrum, and the seat body is urged by a spring in a direction in which a rear end side ascends with the front end as a fulcrum.
[0006]
The seat body can be held in a substantially horizontal state against the urging force of the spring. Therefore, when the user sits down, the holding state of the seat body is released, and the seat body is inclined by the biasing force of the spring. Thereby, the user can lower the buttocks slightly to hit the seat body, so that the user can sit relatively easily, and when standing up, the buttocks are pushed up by the seat body urged in the upward direction. Therefore, in this case, it is possible to stand up relatively easily.
[0007]
[Problems to be solved by the invention]
By the way, when the user stands while the buttocks are pushed up by the seat, the angle formed by the upper surface thereof increases as the seat rotates. Therefore, the buttocks of the user pressed against the upper surface of the seat body may slide downward from above on the upper surface of the seat body.
[0008]
When the buttocks slide downward on the upper surface of the seat body, the burden on the user's feet and hips increases. Therefore, in the case of a user with a weak leg, the leg may fluctuate, and the user may not be able to stand up in a stable state.
[0009]
In addition, many ordinary chairs have an armrest. In the case where the above-described buttocks are pushed up in the chair provided with the armrest, the user puts his hand on the armrest of the chair in order to stand in a stable state.
[0010]
However, when the surface of the armrest is made of a smooth and slippery material, a hand on the armrest may slip on the upper surface of the armrest.
[0011]
This invention prevents the buttocks of the user from slipping on the upper surface of the seat when the user stands up by rotating the seat in the ascending direction, and furthermore, the hand on the armrest slides on the upper surface of the armrest. An object of the present invention is to provide a chair which is made difficult.
[0012]
[Means for Solving the Problems]
The invention according to claim 1 is a chair for reducing the burden of standing up by raising the seat body, wherein the buttocks of the user on the upper surface of the seat body are higher than the material covering the entire surface of the chair. A chair characterized in that it is coated with a non-slip material only in a portion where the material comes into contact.
[0013]
According to a second aspect of the present invention, there is provided the chair according to the first aspect, wherein the chair is coated with a non-slip material only in a portion where a palm comes into contact with a user in front of an upper surface of an armrest of the chair.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
【Example】
FIGS. 1 and 2 show an embodiment of the present invention. FIG. 1 is a view showing a state where a seat body of a chair is raised. FIG. 2 is a view in which the seat body of the chair is substantially horizontal to the legs.
[0016]
As shown in FIG. 1, the chair has a leg body 2, a back body 3, and an armrest which are formed continuously with the seat body 1 and are bent at approximately 90 degrees at the front end of the seat body 1. The body 4, the legs 5, and the drive main body inside the chair main body (not shown) are configured.
[0017]
In the above chair, the surface of the chair is entirely covered with a material having a smooth surface such as vinyl chloride leather.
A material with a smooth surface, such as the above-mentioned vinyl chloride leather, has an advantage that it can be easily wiped and cleaned when its surface becomes dirty as compared with a cloth made of cloth, and is used favorably in a nursing chair.
[0019]
The seat body 1 pivotally connects a rotating bracket of a driving body inside a chair body (not shown) and a front end side of the seat body 1 so as to be rotatable.
[0020]
A drive mechanism having a drive shaft that can be advanced and retracted by a drive source is pivotally attached to a drive link in a drive main body configured inside the chair (not shown). When the drive shaft is moved forward and backward, the seat body 1 is rotatable via the drive link in both the rising direction and the horizontal direction with the front end side as a fulcrum as shown in FIGS.
[0021]
An armrest flat plate portion 6 is provided on both sides of the seat 1, and an armrest 4 whose tip is raised upward is integrally attached thereto, and the armrest 4 follows the rotation of the seat 1. I do.
[0022]
The entire surface of the seat body 1 and the armrest body 4 is covered with a smooth material such as vinyl chloride leather, but the user's palm comes into contact with the part 7 where the user's buttocks come in contact when standing up. The upper surface front portion 8 of the armrest body 4 is covered with a material having a higher frictional resistance than that of the above-mentioned smooth material limited to that portion.
[0023]
The material having a large frictional resistance is a material obtained by applying a urethane resin coating to a vinyl chloride leather, or a material having a surface with fine irregularities so that it is not slippery.
[0024]
Next, a case where the chair having the above configuration is used will be described.
[0025]
The user usually sits on the seat body 1 in the state of FIG.
[0026]
When the user stands up from the state of sitting on the seat body 1, the drive source of the drive mechanism is operated to retreat the drive shaft, and the seat body 1 is rotated via the drive link in the ascending direction with the front end side as a fulcrum. .
[0027]
When the seat body 1 rises as shown in FIG. 1, the buttocks of the user sitting on the seat body 1 are pushed up obliquely upward. Therefore, the user can stand up with the rotation of the seat body 1 while putting a hand on the seat body 1 and the tip of the armrest body 4 attached integrally to the seat body 1 and rising upward.
[0028]
At this time, the part 7 with which the user's buttocks contact and the front upper part 8 of the armrest 4 with which the palm of the user contacts are covered with a non-slip material having a large frictional resistance so that the user does not slip down. , It is possible to reliably start up in a stable state.
【The invention's effect】
[0029]
As described above, the chair of the present invention has the following effects by adopting the above-described configuration.
[0030]
According to the first aspect of the present invention, in a chair that raises the seat body to reduce the burden on the user to stand up, the user on the upper surface of the seat body is more than the material that entirely covers the surface of the chair. By covering the material of the buttocks with the non-slip material only at the portion where the buttocks contact, the user can be surely stood up in a stable state because it is held so as not to slide down when the seat body rises.
According to the second aspect of the present invention, in the chair according to the first aspect, the user in front of the upper surface of the armrest of the chair is covered with a non-slip material only in a portion where the palm contacts when the user stands up. Is held so as not to slide down when the seat body rises, so that it can stand up reliably in a stable state.
[Brief description of the drawings]
FIG. 1 is a diagram showing a state where a seat body of a chair is raised.
FIG. 2 is a diagram in which a seat body of a chair is substantially horizontal to a leg.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seat body 2 Leg cover body 3 Back body 4 Armrest body 5 Leg body 6 Armrest body flat plate part 7 Contact part of user's buttocks 8 Top front part of armrest body 4 with contact of user's palm

Claims (2)

In a chair that raises the seat body to reduce the burden on the user to stand up, the chair is limited to a part of the upper surface of the seat body that contacts the buttocks of the user rather than the material that entirely covers the surface of the chair. A chair characterized by being coated with a slip-resistant material. 2. The chair according to claim 1, wherein the chair is covered with a non-slip material only in a portion where a palm comes into contact with a user in front of an upper surface of an armrest of the chair.

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