JPH0176955U

JPH0176955U -

Info

Publication number: JPH0176955U
Application number: JP1987171974U
Authority: JP
Priority date: 1987-11-12
Filing date: 1987-11-12
Publication date: 1989-05-24
Also published as: JPH0432446Y2

Description

[Brief explanation of the drawing]

第１図は、本考案を適用した観覧席の中央縦断
内側面図、第２図は、第１図のＸ―Ｘ線断面図、
第３図は、第１図のＹ―Ｙ線矢視図、第４図は、
押圧板の拡大正図面、第５図は、揺動板の拡大正
図面、第６図は、同じく拡大側面図、第７図は、
押圧板により押し下げられた揺動板を示す拡大側
面図である。１Ａ，１Ｂ，１Ｃ，１Ｄ……段床、２……台車
、３……支柱、４……床板、５……支腕、６……
車輪、７……床面、８……案内ローラ、９……第
１ストツパ、９ａ……基端、９ｂ……遊端、１０
……揺動板、１０ａ……立上片、１１……ばね、
１２……押圧板、１２ａ……押圧片、１３……第
２ストツパ、１３ａ……後縁。 Fig. 1 is a central longitudinal inner side view of the bleachers to which the present invention is applied, Fig. 2 is a sectional view taken along the line X--X of Fig. 1,
Figure 3 is a Y-Y line arrow view in Figure 1, Figure 4 is a
FIG. 5 is an enlarged normal view of the pressing plate, FIG. 6 is an enlarged side view of the rocking plate, and FIG.
FIG. 3 is an enlarged side view showing the swing plate pressed down by the pressing plate. 1A, 1B, 1C, 1D... tier floor, 2... trolley, 3... pillar, 4... floorboard, 5... support arm, 6...
Wheel, 7... Floor surface, 8... Guide roller, 9... First stopper, 9a... Base end, 9b... Free end, 10
... Rocking plate, 10a ... Standing piece, 11 ... Spring,
12...Press plate, 12a...Press piece, 13...Second stopper, 13a...Rear edge.

Claims

[Scope of utility model registration request]

Both ends of a horizontally long floor plate are supported on a cart via pillars so as to be movable back and forth. When in use, multiple tiers of different heights are unfolded in a stair-like manner with the lowest tier at the front end, and the platform is moved forward and backward. When in use, in a retractable tiered bleachers where the tiers in front of the tiers are stored in a shelf-like manner inside and below the tiers at the rear end, there is a play area protruding inwardly at the front end of the trolleys other than the innermost one. The end is fixed to the first stopper located directly above the adjacent cart, and the rear end is pivoted to the cart immediately after the base end of the first stopper of the carts other than the innermost and outermost carts, and the spring is attached. Due to the force, the upper edge is inclined forward and upward, and the center part of the upper edge is at the same height as the free end of the first stopper of the truck adjacent to the outside. The free end protruding outward is located at the lower front of the installed support other than the outermost one, and is located directly above the adjacent cart, so that when the cart moves, it is above the rocking plate of the stopped outer cart. When the first stopper is reached, a pressing plate is used to push it down below the free end of the first stopper, and the front end is pivoted to the base of the pressing plate, and when the first stopper is overcome from behind, it swings downward due to its own weight. hand,
A telescoping control device for a telescoping stepped spectator seat, comprising a second stopper that engages with a front edge of the first stopper.