JPH0230585Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a locking device when deployed in a telescoping and deployable bleacher system.

[Conventional technology]

Conventionally, in a telescoping bleacher system, in which trolleys each having seats of different heights are pulled out in a stair-like manner, and each lower seat can be stowed so as to be stacked below an upper seat, when the seat is unfolded, There has never been a structure in which a rubber pad can be pressed against the floor below the first stage truck to lock the entire truck from swinging.

[Problem that the invention attempts to solve]

When the present invention is deployed in such a state of use, the entire structure can be locked stably and well without damaging the floor by pressing the rubber parts on the first stage cart side, and the locking and release operations can be performed from the front. This can be easily done by rotating the skirt board 180 degrees in the vertical direction, and is provided so that it can be carried out suitably.

[Means for solving problems]

Therefore, in the present invention, a skirt board is pivotally attached to the front lower part of the first stage truck, and as the skirt board rotates, the tip of the skirt board 1 is attached to the support piece 8 provided on the upper back surface of the skirt board 1. A rubber pad that can be pressed against the floor is attached to the lower part of the link mechanism that is connected to the lower part of the first stage truck so that it can move up and down by the movement of the interlocking rod 9 that is rotatably attached to the shaft. It is.

[Effect]

This configuration ensures that when deployed in use,
If the skirt board is rotated so as to cover the front part of the first-stage truck, the interlocking link mechanism will press the rubber pad against the floor surface and lock the entire body in a stable manner.

〔Example〕

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

FIG. 2 shows a side view of the entire unfolded state. The carts A ₄ , A 3 , A ₃ ,
A ₂ and A ₁ are installed in sequence, but each trolley A ₁ , A ₂ , A ₃ ,
Wheels 3 are mounted on axles at the front and rear of the bottom of _A4 , respectively.
Rear frames 4a, 4b, 4c, and 4d that are raised toward the rear are installed in sequence above the rear of each truck, and rear frames 4a, 4b, 4c, and 4d
Floor plates 5a, 5b, 5 extending forward from each upper part of
Seats 1a, 1b, 1 are located in the front of c and 5d, respectively.
c and 1d respectively, and when each trolley is moved toward the wall Y side, the upper seat 1
Seats 1c, 1b, and 1a are stored in the order of 1c, 1b, and 1a below d _.
Each of the trolleys A ₃ , A ₂ , and _{A 1} is housed inside the seat as shown in FIG.
The upper part of the skirt board 1, which can cover the lower front part of the truck _A1 , is rotatably attached to the lower part of the curtain plate 6 which is to be stretched under the front lower part of the truck A1. The front end of an interlocking rod 9 whose front portion is bent is rotatably connected to a supporting piece 8 projecting from the rear of the upper part of the frame 1 via a pin 10.

A link mechanism C is installed vertically at the lower part of _the bogie A1, which is slightly forward.
The lower part of the lower link 13, which is pivotally attached to the lower side surface of the horizontal seat plate 5a in _A1 via a pin 12, and becomes vertical when standing up, is connected to the lower part of the link 11 via a pin 14, and its upper end The lower link 1 is attached to the middle part of the link 16 which is connected to the lower side surface of the horizontal seat plate 5a via the pin 15.
The upper ends of link 3 are connected via pin 17, and link 1
A beveled edge portion 16a is formed at the lower end of the link 11 so that the lower end of the link 11 is joined to the lower upper edge of the link 11 when the link 6 hangs down.

Further, the lower end of the link 11 has a lower surface facing the floor surface X.
A disk-shaped rubber pad 2 that can be contacted with the upper part is integrally provided, and the pin 17 is fitted into a long hole 18 formed at the rear end of the interlocking rod 9.

Therefore, when unfolding from the stored state as shown in Fig. 3 as shown in Fig. 2, or when storing from the state shown in Fig. 2 to the state shown in Fig. 3, the As shown, when the skirt board 1 is rotated 180 degrees from below to the front side of the curtain board 6, the interlocking rod 9 is pulled forward and the link mechanism C is bent with the link 16 and the lower link 13 bent. The rubber pads 2 are raised above the floor surface X, and each truck can be moved without support.

Furthermore, in the unfolded state as shown in Fig. 2 or in the stowed state as shown in Fig. 3, the skirt board 1 is allowed to hang down so as to cover the lower front surface of the trolley A ₁ as shown in Fig. 1. When placed, interlocking rod 9
is pushed backwards and links 16 and lower link 1
3 hangs down in parallel, and the link 16
The lower end slanted edge 16a is joined to the lower upper edge of the link 11, and the rubber pad 2 can be pressed against the floor surface X and locked while pushing down the link mechanism C.

[Effect of idea]

In this way, the present invention allows the rubber pads 2 to be easily moved up and down by the link mechanism C by simply rotating the skirt board 1, which can safely cover the front lower part of the first stage bogie _A1 .
By pressing the rubber pad 2 against the floor surface X when A ₁ , A ₂ . 2, it can be well locked without damaging the floor surface X, and has the advantage of being suitable for implementation.

[Brief explanation of the drawing]

1 is a side view of the main parts, FIG. 2 is a side view of the entire unfolded state, FIG. 3 is a side view of the stored state, and FIG. 4 is an explanatory view of the operation of FIG. 1. 1a, 1b... Seat, A ₁ , A ₂ ... Trolley, 1d
...Upper seat, 1...Skirt board, C...Link mechanism, X...Floor surface, 2...Rubber pad.

Claims (1)

[Scope of utility model registration request] The trolleys A ₁ , A ₂ . . . each having seats 1 a, 1 b . In the deployable bleacher seat system, a skirt board 1 is rotatably pivoted to the front lower part of the first stage trolley _A1 , and a support piece 8 protruding from the rear upper part of the back surface of the skirt board 1 has a
Links 11 and 13 are attached at one end to a link mechanism C with a pin 14 as a pivot point, and the other end of an interlocking rod 9 is rotatably attached at 10, and one link in the link mechanism C. This is a locking device when unfolding in a telescoping and deployable spectator seat system, in which a rubber pad 2 is attached to the lower surface that comes into contact with the seat surface of 13.