JP3075531U - Chair - Google Patents

Abstract

(57) [Summary] [Problem] To provide a seat chair in which a contact portion of a waist and a shoulder and a height of a lower part of a knee can be freely adjusted, and stretching can be performed easily and easily while sitting. I do. SOLUTION: In a seat chair 1 provided with a seat 10 and a backrest 20, and a ratchet fitting for connecting the backrest 20 so as to be adjustable in angle, at least one of the seat 10 and / or the backrest 20 is provided. An air cushion that expands and contracts by manual operation was attached to some places.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a chair that can easily and easily stretch around the waist and shoulders while sitting.

[0002]

[Prior art]

 In a chair with a seat and a backrest, it is common that the seat and the backrest are connected by a ratchet bracket. By operating the ratchet bracket, it is possible to watch TV, read, Further, it has been possible to set the backrest at an arbitrary angle according to the purpose such as a nap.

[0003] In such a general-purpose chair, it is inevitable that the burden is concentrated around the waist no matter how long a person sits for a long time. For this reason, occasionally, the user may stand up and lean back to perform a stretching exercise, hold a pillow or cushion between the backrest and the waist, or place a cushion or the like on the back of the shoulder or below the knee. In general, efforts were made to reduce the burden on the passengers and make sitting for a long time as comfortable as possible.

[0004] In view of the above, in recent years, in order to reduce the burden on the waist, it has been possible to accommodate the bladder bag inside the backrest, inflate the bladder bag with an air pump or the like, and stretch the waist while sitting. A chair that can be used has been developed.

[0005]

[Problems to be solved by the invention]

 However, when a pillow or a cushion was sandwiched between the backrest and the waist, the pillow or the cushion was shifted downward, and an efficient stretching effect was not obtained. Also, when a cushion or the like is placed behind the shoulder or below the knee, the cushion moves during sitting and it is difficult to adjust the height to an arbitrary height.

On the other hand, in a seat chair in which a bladder bag is inflated by an air pump or the like, a large body is often used for the apparatus, which increases the weight, increases the manufacturing cost, and causes problems in terms of movement and storage. There were many things. In addition, there was a drawback that subtle height manipulation was difficult and convenience was poor.

[0007] Therefore, an object of the present invention is to solve the above-mentioned problems and to enable the height of the contact point of the waist and the shoulder and the height of the lower part of the knee to be freely adjusted, so that stretching while sitting can be performed easily and easily. It is an object of the present invention to provide a chair that can be used.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, a seat chair according to the present invention is a seat chair including a seat portion, a backrest, and a ratchet fitting for connecting the backrest so that the angle can be adjusted. And / or at least one of the backrests is provided with an air cushion which expands by manual operation. By manually operating the air cushion, it is possible to finely adjust the height. Furthermore, since the structure can be simplified, manufacturing costs can be reduced, and excellent effects can be achieved in terms of movement and storage.

In the chair according to the present invention, it is preferable that the air cushion is provided below the backrest and at a position where the air cushion is arranged on the waist of the human body. By operating the grip and inflating the air cushion under the backrest, the waist can be bent back and stretched, and the burden on the waist during sitting can be reduced.

[0010] In the chair according to the present invention, it is preferable that the air cushion is provided at a position above the backrest and on the shoulder of the human body. Further, in the chair of the present invention, it is preferable that the air cushion is provided at a position in front of the seat portion and below the human body knee. By inflating the air cushion above the backrest, the shoulders and neck can be bent back and stretched. In addition, by expanding the air cushion in front of the seat, the area around the knee is raised and a comfortable sitting state can be maintained.

[0011]

[Embodiment of the invention]

 Hereinafter, an embodiment of the chair according to the present invention will be described with reference to the drawings. The seating chair 1 includes a seat portion 10, a backrest 20, and a ratchet metal fitting (not shown) for connecting the backrest 20 so as to be adjustable in angle.

The seat 10 includes a middle material 11 having a cushioning property, a pipe 12 for keeping the middle material 11, and a covering material 13 covering the periphery of the middle material 11. Further, the backrest 20 is formed of a middle material 21 having a buffering property, a pipe 22 for keeping the middle material 21, and a covering material 23 covering the periphery of the middle material 21.

Further, the seat 10 and the backrest 20 are connected by a commonly used ratchet bracket (not shown), and the backrest 20 is provided according to the purpose of watching television, reading, and taking a nap. Can be set and held at an arbitrary angle.

An air cushion 2 is accommodated below the backrest 20 and at a position arranged on the human waist during sitting. The air cushion 2 is housed in a state sandwiched between the middle material 21 and the covering material 23.

A rubber tube 3 is joined to a side surface of the air cushion 2, and a hollow grip portion 4 having elasticity is provided at a distal end portion of the rubber tube 3. By manually operating the grip portion 4 and sending air into the air cushion 2, the air cushion 2 can be inflated to an appropriate height. By releasing the valve 5 provided around the base of the grip portion 4, the air in the air cushion 2 can be exhausted. By inflating the air cushion 2, as shown in FIG. 2, the waist of the human body is bent outward, and the waist can be stretched while sitting. Therefore, even in a state in which the user sits on the chair 1 for a long time, the burden on the waist can be reduced and a comfortable use state can be maintained.

The air cushion is not limited to one, and a plurality of air cushions may be provided. As an example, as shown in FIG. 3, air cushions 2, 6, and 7 are accommodated in a portion arranged at the waist of the human body, a portion arranged around the shoulder of the human body, and a portion arranged under the knee of the human body, respectively. Have been. By providing a plurality of them, the applications are expanded and the usability is improved for seat chair users.

Furthermore, the size of the air cushion is not particularly limited. For example, when the air cushion is arranged around the shoulder of a human body, an air cushion of an appropriate size may be housed on the left and right for a double shoulder.

[0018]

[Effect of the invention]

 As described above, the seat chair of the present invention has the following effects by adopting the above-described configuration.

By operating the grip and inflating the air cushion below the backrest, the waist can be bent back and stretched, and the burden on the waist during sitting can be reduced.

Further, by inflating the air cushion on the upper portion of the backrest, the shoulder and the neck can be bent, and the stiff shoulder and the like can be eliminated.

[0021] Furthermore, by inflating the air cushion in front of the seat, the periphery of the knee can be raised and a comfortable sitting state can be maintained.

Further, by manually operating the air cushion, fine adjustment of the height becomes possible.

Furthermore, the structure can be simplified as compared with the related art, and the manufacturing cost can be reduced, and excellent effects can be obtained in terms of movement and storage.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a state in which a part of a chair according to the present invention is cut off.

FIG. 2 is a side sectional view showing a use state of the chair.

FIG. 3 is an overall perspective view of a chair showing another preferred embodiment.

FIG. 4 is a side sectional view showing a use state of the chair.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat chair 2,6,7 Air cushion 3 Rubber tube 4 Handle part 5 Valve 10 Seat part 11,21 Middle material 12,22 Pipe 13,23 Coating material 20 Backrest

Claims (4)

[Utility model registration claims] 1. A chair comprising a seat, a backrest, and a ratchet fitting for connecting the backrest so that the angle can be adjusted, wherein at least one of the seat and / or the backrest is manually operated. A seat chair equipped with an air cushion that expands and contracts by operation. 2. The air cushion according to claim 1, wherein the air cushion is provided below the backrest and at a position where the air cushion is arranged on a human waist.
The described chair. 3. The air cushion according to claim 1, wherein the air cushion is provided at a position above a backrest and on a shoulder of a human body.
Or the chair described in 2. 4. The air cushion according to claim 1, wherein the air cushion is provided at a position in front of the seat and below the knee of the human body.
4. The chair according to any one of to 3 above.