JPH0655448U - Rotating and retractable seat mounting structure for chairs - Google Patents

Abstract

(57) [Summary] [Purpose] The seat of a chair that can be rotated and stored can be effectively attached so that there is no gap between it and the back so that you can sit comfortably for a long time. And In a chair in which a seat A can be rotated upwards to be stored, the seat A is formed in a side L shape so that the rear part 1 stands up slightly, and the upper end face of the rear part 1 of the seat A is formed. The back body B is erected between the supporting legs C, C on both sides so that the lower end surface is close to, and the fulcrum shafts 2 on both sides in the vicinity of the bending portion of the seat A are pivoted on the supporting legs C on both sides, respectively. In addition to being supported, the seat body A is configured to be rotatable about a fulcrum shaft 2 within a certain range.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotating storage type seat mounting structure for a chair, which can rotate and store a seat in a theater chair, for example.

[0002]

[Prior art]

 Conventionally, in a chair in which a seat body can be swung upward and stored, as shown in FIG. 5, a seat body a on which a person sits and a back body b are separated in the front and rear direction and installed in an L shape in a side view. The seat a can be housed by rotating it upward as indicated by arrow a.

[0003]

[Problems to be solved by the device]

 However, there is a gap between the rear part of the seat a and the lower part of the back b, and an object is dropped from the gap and lost, or the weight of the person sitting on the chair is reduced by the seat a and the back. Since it was applied near the middle part of b, the waist area did not fit, it was uncomfortable to sit in, and it was not possible to support it so that it was comfortable to sit for a long time. .

[0004]

[Means for Solving the Problems]

 The present invention has been devised so as to solve such a problem and to be suitably implemented with a compact structure. Therefore, the seat body is formed in a side L-shape so that the rear part stands up slightly, and the seat body is formed. The back body is installed between the supporting legs on both sides so that the lower end surface approaches the rear upper end surface, and the fulcrum shafts on both sides in the vicinity of the bending part of the seat are pivotally supported on the supporting legs on both sides. The seat is configured to be rotatable about a fulcrum shaft within a certain range.

[0005]

[Action]

 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 is applied to the vicinity of the fulcrum axis near the bending part of the seat, and the waist part fits into the bending part of the seat, and moreover, it is possible to support the person so as to wrap it up. You can sit comfortably for a long time.

[0006]

【Example】

 1 to 4 show an embodiment of the present invention, in which a seat A and a back B are mounted between both supporting legs C, C on both sides, and the seat A is set so that the rear part 1 stands up slightly. Supporting plates 3 and 4 which are formed in an L-shape on the surface and project from both sides of the seat A are fixed with upright supporting frame plates 4 and 4, respectively, and are formed in the vicinity of the bending part of the seat A. The fulcrum shaft 2 and the guide pin 5 projecting outward are fixedly provided on the upper part of each of the supporting frame plates 4 and the rear part thereof, and the fulcrum shaft 2 is fitted on the inner side surfaces of both supporting leg portions C. A shaft hole 6 and an arc-shaped guide groove 7 into which the guide pin 5 is slidably fitted are formed, and the lower end surface of the back body B approaches the upper end surface of the rear portion 1 of the seat body A. Connecting plates 9 and 9 in which the supporting plates 8 and 8 projecting from both sides of the back B are fixed to the inner side surfaces of the upper portions of both supporting legs C and C. Attached respectively, both support leg C, and erection constitute Setai B between the upper portion of the C.

Therefore, as shown in FIGS. 1 and 2, 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 approach each other. It is possible to prevent an object from falling through a gap in the space, and the weight of the person is steadily applied to the vicinity of the fulcrum axis 2 near the bending part of the seat A, and the waist part fits to the bending part of the seat A. In this state, it is possible to support the person so as to wrap it around the person, and it is possible to sit comfortably and comfortably for a long time. Further, as shown in FIG. In addition, the guide pin 5 can be housed when it slides in the guide groove 7 and rotates upward by a certain range, but since the fulcrum shaft 2 is located in the vicinity of the bent portion of the seat body A, Bring body A to the back B side so that it does not get in the way. Can be retracted and stored.

[0008]

[Effect of device]

 As described above, according to the present invention, when sitting on a chair, the upper end surface of the rear part 1 of the seat body A, which has an L-shaped side surface, and the lower end surface of the back body B come close to each other, and an object falls through the gap as in the conventional case. As a result, the weight of the person is stably applied to the vicinity of the fulcrum axis 2 in the vicinity of the bending portion of the seat A, and the waist portion fits into the bending portion of the seat A. Moreover, since it is possible to support the person so as to wrap it, it is possible to sit comfortably and comfortably for a long time, and since the seat body A is rotated around the fulcrum shaft 2 near the bending portion, It has a feature that it can be favorably put into a compact structure because it can be retracted and stored well without getting in the way.

[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 surface, 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.