JPH07114Y2 - Seat base for chair and chair equipped with the base - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention comprises a seat stool for a chair and a seat stool capable of maintaining a comfortable posture when seated. It is related to the chair.

(Conventional Technology) Conventional chairs for office work, learning, meals, etc.
Only the hips are placed on the seat and the upper body is supported only by the hips. Therefore, it goes without saying that there is no problem in sitting itself.

However, with the sitting itself out of the question, the chair having the above-described conventional structure has the following problems.

That is, for example, in the case where the legs do not reach the floor when seated, when the person takes a forward leaning posture while sitting down because of the necessity of working on a desk, etc., the upper body becomes extremely unstable. In this case, it is necessary to support the upper body with elbows, etc., which causes considerable fatigue when working on the desk. Furthermore, in the case of the above-mentioned state, if the user sits down on the chair by lowering the seat, for example, the abdomen will be pressed, which may cause fatigue.

Nowadays, as the progress of office automation is remarkable, various working hours on the desk while sitting on a chair are increasing.
The reality is that there has been a long-felt need for the emergence of a chair that can easily lean forward when working on a desk.

(Problems to be Solved by the Present Invention) The present invention was developed in view of the above-mentioned conventional circumstances.
The purpose is to support the upper body of the seated person at the three points of the knees and hips while supporting the upper body with the waist so that the leaning posture and the desk work can be performed in a comfortable posture. The present invention provides a seat for a chair and a chair including the seat.

[Configuration of the present invention]

(Means for Solving the Problem) First, the chair seat according to claim 1 is a flat base,
A front edge portion for placing both knees, which is disposed at one end of the base material and is formed to have an appropriate height and an appropriate length such as a semi-cylindrical cross section, and the base material at the rear position of the front edge portion. And a rear seat portion that is disposed above and is formed at least higher than the height of the front edge portion.

Further, the chair provided with the chair seat according to claim 2 is a standing type chair having a proper leg portion of a folding type or a non-folding type, and is a flat plate-shaped base and is disposed at one end of the base. For example, the front edge portion for both knees is formed to have an appropriate height and an appropriate length such as a semi-cylindrical cross section, and at least the front edge portion is disposed on the base at the rear position of the front edge portion. And a tail seat formed higher than the height of the edge.

(Operation) According to the chair seat according to claim 1 and the chair according to claim 2, both knees are placed on the front edge portion, and the hip portion is placed on the hip seat portion higher than the height of the front edge portion. Since it is configured to sit down and sit down, the upper body when seated can be supported by the waist while supporting the upper body at the three points of both knees and hips, and can be used for desk work such as forward leaning posture. Can be done in a comfortable posture.

(Embodiment of the Invention) Hereinafter, an embodiment of the invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the chair seat base A according to the present invention is provided with a flat plate-like base 1 and is arranged at one end of the base 1 so as to have, for example, a semi-cylindrical cross section. Front edge portion 2 for both knees formed to have an appropriate height and an appropriate length,
The hip seat portion 3 which is arranged on the base plate 1 at the rear position of the front edge portion 2 and is formed at least higher than the height of the front edge portion 2.
It consists of and.

The front edge portion 2 is fixed to the base 1 or integrally formed with the base,
The length of the front edge portion 2 is preferably about 50 to 60 cm so that when sitting, both knees can be seated in an open posture with an angle of about 60 degrees. The front edge portion 2 is not particularly limited in its shape. For example, the front edge portion 2 is formed into a semicylindrical cross section, and the height of the front edge portion 2 is such that the knee joint flexure when seated. About 1-2 cm is suitable so that the side can be seated while making close contact with the upper surface of the front edge.

The back seat 3 is fixed to the base 1 with a screw 4 (see FIG. 2).
Since it is fastened (see FIG. 3) with both magic fasteners 5 on the upper surface of the base 1 and the back surface of the hip seat,
The fixed position of the back seat 3 can be moved on the base according to the height and the like of the seated person. Further, the height of the rear seat portion 3 is formed to be at least higher than the height of the front edge portion 2, and in actuality, it is about 1 to 5c higher than the height of the front edge portion 2.
It is convenient to make it about m higher. Further, the back seat portion 3 is detachably attached to the base 1 by the fastening means such as the magic fastener 5, and the back seat portion 3 itself is freely carried by each person and placed on a chair to be seated. You may use it afterwards. In this case, although not particularly shown,
It is convenient to attach a non-slip rubber material or the like to the back surface of the back seat portion 3.

Note that a rubber material 6 for slip prevention may be attached to the back surface of the chair seat base A configured as described above, as indicated by the broken line in FIG.

FIG. 4 shows a chair B of the present invention comprising a front edge portion 2 and a back seat portion 3 in the chair seat base A.

That is, the chair B shown in FIG. 4 is a folding type or non-folding type standing chair having appropriate leg portions 7, and is a flat plate-shaped base 1'and disposed at one end of the base 1 '. For example, the front edge portion 2 for both knees is formed to have an appropriate height and an appropriate length such as a semi-cylindrical cross section, and the front edge portion 2 is arranged on the base 1'at the rear position. And a rear seat portion 3 formed to be higher than at least the height of the front edge portion 2.

Therefore, the chair seat base A configured as described above is used by placing it on an existing chair in a timely manner, and the chair seat base A and chair B according to the present invention have front edges. Part 2
Both knees are placed on the upper portion, and the hips are placed on the hip seat portion 3 formed higher than the height of the front edge portion 2 to be seated and used. Therefore, it is possible to support the upper body with the waist while supporting the upper body at the time of sitting on the knees and the hips at three points, and in a comfortable posture that does not cause fatigue such as forward leaning and desk work. It can be carried out.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention. For example, as shown in FIG. 5, it is a matter of course that the front edge portion 2 can be formed by curving with a thin plate.

[Effects of the Invention] According to the above-described invention, the upper body is supported by the hips while supporting the upper body when seated at three points of the knees and the hips, and the forward leaning posture and other desk work are performed. Seat A for chairs that can be used in a comfortable posture
Also, it is possible to provide a chair B equipped with the seat panel.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a chair seat A according to the present invention, FIGS. 2 and 3 are longitudinal sectional views of an embodiment different from FIG. 1, and FIG. 4 is a chair of the present invention. Chair B with seat A
FIG. 5 is a perspective view showing an embodiment different from FIG. 4 in a partially cutaway state, and FIG. 6 is a longitudinal sectional view showing another embodiment of the chair seat of the present invention. is there. Main symbols in the figure 1, 1 '... base 2 ... front edge 3 ... hip seat 8 ... seating body.

Claims (6)

[Scope of utility model registration request] 1. A flat plate-shaped base and a front edge portion for placing both knees, which is arranged at one end of the base and is formed to have an appropriate height and an appropriate length in a manner like a cross section having a substantially semicircular shape. And a rear seat portion which is disposed on the base at the rear position of the front edge portion and formed at least higher than the height of the front edge portion. 2. A plate-shaped base and a front edge portion on which the hard elastic material is built-in so that both knees can be placed while abutting the back surfaces of both knees when seated A seat base for a chair comprising a seating body having a built-in elastic material and having a rear seat portion formed higher than the height of the front edge portion on the elastic material embedded portion. 3. The hip seat formed to be higher than the height of the front edge portion is provided with a detachable tool such as a surface fastener on the back surface so that the hip seat can be detached from the seat body. The chair seat according to claim 2, wherein the mounting position of the back seat is adjustable. 4. In a chair having legs, a plate-shaped base and both of which are arranged at one end of the base and are formed to have an appropriate height and an appropriate length in a manner such that the cross section has a substantially semicircular shape. A chair having a chair base comprising a front edge portion for knee rest and a rear seat portion which is arranged on a base at a position behind the front edge portion and is formed at least higher than the height of the front edge portion. 5. In a chair having legs, a hard elastic material is built in on a flat plate-like base, and a front edge portion is provided for placing both knees while abutting the back surfaces of both knees when seated. A chair provided with a seat stool including a hard elastic material and a seating body having a hip seat formed higher than the height of the front edge on the elastic material built-in portion. 6. The hip seat formed to be higher than the height of the front edge portion is provided with a detachable tool such as a hook-and-loop fastener on the back surface so that the hip seat can be detached from the seat body. A chair provided with the chair seat according to claim 5, wherein the mounting position of the back seat is adjustable.