JPS59126Y2 - Folding chairs for bleachers - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a folding chair for spectator seats.

In other words, for example, in a stadium where seats are installed on each step of a staircase that expands and contracts from the wall side or the bottom of the second-floor seats to the floor and can be stowed away, each chair is It is composed of a comfortable seat and back body, and when stored, the seat body and back body are overlapped, and the height is lowered above the steps and folded, making it easy to store in narrow spaces. The present invention provides a device that can be deployed smoothly and lightly when deployed, has a simple structure, is easy to manufacture, and can be suitably implemented.

Next, the embodiment shown in the drawings will be described.

B indicates the steps in the bleachers, but from the wall side of the gymnasium or the bottom of the second-floor bleachers to the floor, each step B becomes a step-like structure that expands and contracts and can be stored, similar to the conventional structure. It consists of

A large number of chairs A are installed on each step B, and each chair A has both supporting plates 3, 3 erected in parallel on a plate 3a fixed on the step B with bolts and nuts 11, and has a backrest. The lower part of a long stay 4 with the body 1 fixed to the upper front surface is rotatably supported between the rear parts of both support plates 3, 3 via a pin 5, and the cross section is U-shaped in a direction perpendicular to the stay 4. The rear part of the support frame 6 is integrally fixed to the lower part of the stay 4 by welding, and a cylindrical metal 7 is supported on the front upper surface of the support frame 6 extending between the support plates 3, 3. A frame body 12 is fixedly installed, and a support rod 13 is attached to the inside of the front part of the support frame 6.

Reference numeral 2 denotes a seat body, and a support frame body 14 is fixed to the rear lower surface of the seat body 2, and a support shaft 8 mounted on the rear part of the support frame body 14, which is below the rear end of the seat body 2, is connected to the metal 7. At the lower rear of the support frame 14, the seat 2 is connected to the front end surface 6a at the tip of the support frame 6 when it is in a horizontal state, and when the seat 2 is upright, the frame 12 is connected to the front end surface 6a. A stopper 9 to be joined to the front surface is fixedly provided.

Further, the lower parts of both plate hooks 10.10 installed between the front parts of both support plates 3, 3 are pivotally supported on the support shaft 15 between both support plates 3, 3, and the upper parts of both hooks 10.10 are It is installed so that it can be connected to and detached from the support rod 13, and an integrated lever part 10a is extended forward from the lower part of both hooks 10.10, and both hooks 10.
A spring rod 16 fitted to the support shaft 15 on the outside of the lever 10 is engaged with the lower surface side of the lever part 10a, and the spring rod 16 presses the hook 10.10 in the direction in which it engages with the support rod 13. Install and configure it as follows.

Therefore, if each step B is deployed and the bleachers are deployed in use, the first
As shown in FIGS. 4 to 4, the hook 10° 10 engages with the support column 13 when the back body 1 and the stay 4 are upright.
The stopper 9 is joined to the front end surface 6a of the support frame 6, and the seat body 2
is supported horizontally.

When storing chair A, lift the front part of seat body 2,
As shown in FIG. 6, the seat body 2 is raised while being rotated around the support shaft 8 until the stopper 9 joins to the front surface of the frame body 12, and then the lever part 10a is pushed down by tensioning the spring rod 16. When both hooks 10 and 10 are removed from the support rod 13 and the whole body is rotated around the pin 5 and tilted backward, the back body 1 and the seat body 2 overlap above the step B as shown in Fig. 7. In this way, it can be folded low, and if step B is moved in that state, the bleachers can be stored.

When unfolding from the stored state, it can be unfolded by performing the above-mentioned operation in reverse.

In this way, the present invention is such that the lower part of the stay, which has the back body fixed to the upper part, is pivoted to the support plate fixed on the movable steps in the bleachers via pins, and the lower part of the stay is integrated from the lower part of the stay. A metal is installed above the front part of the support frame that extends forward, and a support shaft attached to the rear lower part of the seat body is rotatably mounted on the metal and fixed to the rear lower part of the seat body. The stopper is installed so that it can abut against the front side of the support frame when the seat body is in a horizontal state, and the hook on the support plate side is installed so that it can be freely engaged with the support frame. Therefore, the seats for the bleachers can be constructed from a comfortable seat body and back body, and when stored, the seat body and back body can be overlapped and folded to a low height above the steps. I can,
Accordingly, the seats can be made smaller and stored in a narrow space, and when unfolded, they can be unfolded smoothly and lightly, and the structure is simple, making it easy to manufacture and suitable for implementation.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the entire chair, Fig. 2 is a front view thereof, Fig. 3 is an enlarged view of a part of Fig. 2, and Fig. 4 is an enlarged view of Fig. 1. 5 is an exploded view of FIG. 4, and FIGS. 6 and 7 are explanatory diagrams of the operation of FIG. 4. B...Step, A...Chair, 3...
... Support plate, 1 ... Back body, 4 ...
Stay, 5...pin, 6...support frame,
7...metal, 2...sitting body, 8...
...Spindle, 9...Stopper, 10...
...Hook, A...Chair.

Claims (1)

[Scope of utility model registration request] The support plate fixed on the movable steps in the bleachers has the lower part of the stay with the back body fixed to the upper part pivoted via a pin, and the support plate extends forward integrally from the lower part of the stay. A metal is installed on the upper front part of the frame, and a support shaft attached to the rear lower part of the seat body is freely rotatable on the metal, and a stopper fixed to the rear lower part of the seat body keeps the seat body horizontal. The bleachers are arranged so that they can abut against the front side of the support frame, and the hooks on the support plate side are installed so that they can be detachably engaged with the support frame. folding chair.