JPH0731721Y2 - Rotating and retractable seat mounting structure for chairs - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating storage type seat mounting structure for a chair, which can be rotated and stored in a theater chair or the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, in a chair in which a seat body can be swung upwards and stored, a seat body a on which a person sits and a back body b are separated from each other in a front and rear view. It was constructed so as to be L-shaped, and the seat a could be housed by rotating it upward as indicated by arrow a.

[0003]

[Problems to be solved by the invention] However, the seat a
There is a gap between the rear part and the lower part of the back body b, and things are dropped and lost through the gap, and the weight of the person sitting on the chair is near the middle part between the seat body a and the back body b. As a result, there is a problem that the waist does not fit, the sitting comfort is poor, and a support that is comfortable to sit for a long time cannot be provided.

[0004]

[Means for Solving the Problems] The present invention has been devised so as to solve such a problem and to make it suitable for a compact structure. Therefore, the seat body is formed into a side L-shape so that the rear part stands up slightly. And the back body is installed between the supporting leg portions on both sides so that the lower end surface approaches the rear upper end surface of the seat body, and the fulcrum shafts on both sides in the vicinity of the bending portion of the seat body are on both sides. The seat is pivotally supported on each of the supporting legs, and the seat body is configured to be rotatable about a fulcrum axis within a certain range.

[0005]

Therefore, when sitting on a chair, the rear upper end surface of the seat body and the lower end surface of the back body come close to each other, so that it is possible to prevent objects from falling through the gap as in the conventional case. , The weight of the person is in the vicinity of the fulcrum axis in the vicinity of the bending part of the seat, and the waist part fits in the bending part of the seat, and moreover, it can support the person so as to wrap it around. You can sit comfortably and comfortably for a long time.

[0006]

1 to 4 show an embodiment of the present invention in which a seat body A and a back body B are mounted between both supporting legs C, C on both sides, but the seat body A is so that the rear part 1 stands up a little. The supporting frame plates 4 and 4 which are formed in a side L-shape and project from both sides of the seat A are fixed to the supporting frame plates 4 and 4, respectively, and the vicinity of the bending part of the seat A is provided. The fulcrum shaft 2 and the guide pin 5 projecting outward are fixedly provided on the upper portions of the two supporting frame plates 4 and their rear portions, respectively, and the fulcrum shaft 2 is fitted on the inner side surfaces of the both supporting leg portions C. And an axial guide groove 7 into which the guide pin 5 is slidably fitted, and a lower end surface of the back body B approaches the upper end surface of the rear portion 1 of the seat body A. So that the supporting plates 8 projecting from both sides of the back body B are fixed to the inner side surfaces of the upper portions of both supporting legs C, C. Attached respectively to 9, both support leg C, and erection constitute Setai B between the upper portion of the C.

Therefore, as shown in FIG. 1 and FIG.
When sitting on a chair, the upper end surface of the rear part 1 of the seat body A of the chair and the lower end surface of the back body B come close to each other, so that it is possible to prevent objects from falling through the gap as in the conventional case. The weight is stably applied in the vicinity of the fulcrum axis 2 in the vicinity of the bending portion of the seat A, and the waist is fitted to the bending portion of the seat A, and moreover, it can support the person so as to wrap it. As a result, you can sit comfortably and comfortably for a long time, and as shown in FIG.
The seat A can be housed by sliding the guide pin 5 around the fulcrum shaft 2 in the guide groove 7 and rotating the seat pin A upward by a predetermined range. Since it is located in the vicinity, the seat body A can be brought close to the back body B side and sufficiently retracted so as not to get in the way and stored.

[0008]

[Effect of the Invention] Thus, the present invention, when sitting on a chair,
The upper end surface of the rear part 1 of the seat body A, which is L-shaped on the side surface, and the lower end surface of the back body B come close to each other, so that it is possible to prevent objects from falling through the gap as in the conventional case, and the weight of the person is a fulcrum. Axis 2
Stable in the vicinity of the bent portion of the seat A near the seat, the waist part fits the bent portion of the seat A, and the person can comfortably wrap around the person. Since it is possible to sit comfortably for a long time, and since the seat A is rotated around the fulcrum shaft 2 in the vicinity of the bending portion, it can be retracted so that it does not get in the way and can be stored well. It has the features that can be suitably implemented.

[Brief description of drawings]

FIG. 1 is a side view showing an essential part of an embodiment of the present invention.

FIG. 2 is a side view showing a chair with a part thereof cut away.

FIG. 3 is an exploded perspective view of a chair.

FIG. 4 is a side view showing the operating state of FIG.

FIG. 5 is a side view schematically showing a conventional example.

[Explanation of symbols]

 A ... seat B ... back 1 ... rear C ... support leg 2 ... fulcrum shaft

Claims (1)

[Scope of utility model registration request] 1. A chair in which a seat A can be swung upwards to be housed, and the seat A is formed in a side L shape so that the rear part 1 stands up slightly and the rear part of the seat A is formed. (1) The back body B is installed between the supporting legs C, C on both sides so that the lower end surface approaches the upper end face, and the fulcrum shafts 2 on both sides, which are in the vicinity of the bending portion of the seat A, support the supporting legs C on both sides. A rotary accommodating seat attachment structure, characterized in that the seat A is pivotally supported on each of the above, and the seat A is rotatable about a fulcrum shaft 2 within a certain range.