JPS5857434U

JPS5857434U - Lid marking device for floor openings

Info

Publication number: JPS5857434U
Application number: JP15349781U
Authority: JP
Inventors: 西原　隆司; 三井　潜三郎; 進広瀬
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1981-10-15
Filing date: 1981-10-15
Publication date: 1983-04-19
Also published as: JPS6328265Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す斜視図、第企図は同上
の蓋板を開いた状態の断面図、第３図は同上に使用する
蓋板の斜視図、第４図ａは同上のレバーが前方に移動し
た状態を示す部分断面図、同図すは同上のレバーが後方
に移動した状態を示す部分断面図、第５図は同上に使用
する開口枠の部分平面図であり、１は床面、２は開口部
、３は開口枠、４は蓋板、５は爪片、６は透孔、７はア
ーム、８は軸着部、９は長孔、１０はレバー、１１はば
ね手段、１２は補強桟、１３はハンドル部である。Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 3 is a cross-sectional view of the same cover plate in an open state, Fig. 3 is a perspective view of the cover plate used in the same above, and Fig. 4 a is the same as the above. FIG. 5 is a partial sectional view showing a state in which the above lever has moved forward; FIG. 5 is a partial sectional view showing a state in which the same lever has moved backward; FIG. 1 is a floor surface, 2 is an opening, 3 is an opening frame, 4 is a cover plate, 5 is a claw piece, 6 is a through hole, 7 is an arm, 8 is a shaft attachment part, 9 is a long hole, 10 is a lever, 11 1 is a spring means, 12 is a reinforcing crosspiece, and 13 is a handle portion.

Claims

[Scope of utility model registration request]

The opening frame is attached to the periphery of the opening in the floor, and the opening frame can be freely opened and closed between the closing position and the opening position by rotating the opening frame with the rear edge remaining on the rear edge of the opening frame. One end is rotatably pivoted to the side edge of the cover plate, and a claw piece is formed on the other end so that it can be moved vertically into a through hole that passes vertically through the side edge of the opening frame. The end of the arm to be inserted is slidably installed in a long hole formed along the side edge of the cover plate at a rear position on the side edge of the cover plate from the pivot point between the cover plate and the arm. and a spring means for biasing the lever toward the front of the cover plate, and when the cover plate is open, the lever is moved in front of the cover plate by the spring force of the spring means so as to be attached to the end of the lever. Rotate the abutting arm around the shaft attachment part, lock the claw piece of the arm to the periphery of the hole, make the cover plate independent without falling back and forth, move the lever backwards, and connect the claw piece of the arm to the periphery of the hole. The cover plate is closed by releasing the connection with the periphery of the through hole, and a hollow reinforcing bar that accommodates the lever almost over its entire length is fixed to the back of the cover plate, and a part of the lever is attached to the reinforcing bar on the back of the cover plate. A stand-alone device for the lid of the floor opening that protrudes further and forms a handle for operating the lever.