JPH02120539U

JPH02120539U -

Info

Publication number: JPH02120539U
Application number: JP2935089U
Authority: JP
Priority date: 1989-03-15
Filing date: 1989-03-15
Publication date: 1990-09-28

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る重量蓋用開閉
装置の蓋閉鎖状態の正面図であり、第２図は該開
閉装置の背面図であり、第３図は該開閉装置の平
面図であり、第４図は該開閉装置の底面図であり
、第５図は該開閉装置の左側面図であり、第６図
は該開閉装置の右側面図であり、第７図は第１図
のＡ−Ａ線断面図であり、第８図は第３図のＢ−
Ｂ線断面図であり、第９図は該開閉装置の蓋開放
状態の正面図である。１……重量蓋、２……水平枢軸、３……レール
枠、４……水平枢軸、５……アーム、６……固定
枠体、７……水平枢軸、８……シリンダー、９…
…取付端部、１０……ロツド、１１……取付端部
、１２……水平枢軸、１３……ガスダンパー、１
４……ローラ、１５……歩道、１６……出入口、
１７……受枠、１８……内側壁、１９……固着用
ボルト、２０……アームブラケツト、２１……ダ
ンパーブラケツト、２２……蛇腹型円筒カバー、
２３……ガスダンパーブラケツト、２４……軸受
体、２５……取付ボルト、２６……ナツト、２７
，２８……ローラ転動溝、２９……ストツパー、
３０……固着用ボルト、３１……ナツト。 FIG. 1 is a front view of a heavy-duty lid opening/closing device according to an embodiment of the present invention in a lid closed state, FIG. 2 is a rear view of the opening/closing device, and FIG. 3 is a plan view of the opening/closing device. 4 is a bottom view of the switching device, FIG. 5 is a left side view of the switching device, FIG. 6 is a right side view of the switching device, and FIG. 7 is a bottom view of the switching device. FIG. 8 is a sectional view taken along line A-A in the figure, and FIG.
FIG. 9 is a sectional view taken along the line B, and FIG. 9 is a front view of the opening/closing device with the lid open. 1... Weight lid, 2... Horizontal pivot, 3... Rail frame, 4... Horizontal pivot, 5... Arm, 6... Fixed frame, 7... Horizontal pivot, 8... Cylinder, 9...
...Mounting end, 10...Rod, 11...Mounting end, 12...Horizontal pivot, 13...Gas damper, 1
4...roller, 15...sidewalk, 16...doorway,
17... Receiving frame, 18... Inner wall, 19... Fixing bolt, 20... Arm bracket, 21... Damper bracket, 22... Bellows type cylindrical cover,
23...Gas damper bracket, 24...Bearing body, 25...Mounting bolt, 26...Nut, 27
, 28...Roller rolling groove, 29...Stopper,
30... Fixing bolt, 31... Nut.

Claims

[Scope of utility model registration request]

A rail frame 3 fixed in parallel to the lower surface of the heavy lid 1 which rotates to open and close around a horizontal pivot 2 at the base end; An arm 5 whose end is pivotally connected to a fixed frame 6 by a horizontal pivot 4; a mounting end 9 of a cylinder 8 is pivotally attached to the distal end of the arm 5 by a horizontal pivot 7; At a lower position, the mounting end 11 of the rod 10 is pivoted to the fixed frame 6 by the horizontal pivot 12, and the heavy lid 1 is rotated in the direction of constant opening by the pressure of the gas sealed in the cylinder 8. energizing gas damper 13; arm 5;
It consists of a roller 14 protruding from the upper surface of the top end of the lid 1 and a roller 14 fitted to the rail frame 3 so as to be freely movable.
A heavy lid opening/closing device that is set to a certain limit smaller than the rotational force in the closing direction due to gravity.