JPH0465184U

JPH0465184U -

Info

Publication number: JPH0465184U
Application number: JP10809090U
Authority: JP
Priority date: 1990-10-16
Filing date: 1990-10-16
Publication date: 1992-06-05

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例要部平面図、第２図
は第１図のＡ−Ａ正断面図、第３図は第２図のロ
ツク軸部の分解斜視図、第４図はロツクハンドル
の斜視図、第５図は従来装置の正断面図である。１……開口槽、２……開口部、３……段部、４
……覆蓋、５……異形孔、６……上面板、７……
ロツク軸、８……ロツク軸上端部、９……凹溝、
１０……螺孔、１１……ロツク金具、１２……螺
子、１３……ナツト、１４，１５……ロツク部材
、１６……回転板、１７……ロツクハンドル、１
９……把持部、２０……異形突部。 Fig. 1 is a plan view of the main parts of an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, Fig. 3 is an exploded perspective view of the lock shaft shown in Fig. 2, and Fig. 4 is an exploded perspective view of the lock shaft shown in Fig. 2. A perspective view of the lock handle, and FIG. 5 is a front sectional view of the conventional device. 1...Open tank, 2...Opening, 3...Step, 4
... Cover, 5 ... Irregular hole, 6 ... Top plate, 7 ...
Lock shaft, 8... Upper end of lock shaft, 9... Concave groove,
10...Threaded hole, 11...Lock fitting, 12...Screw, 13...Nut, 14, 15...Lock member, 16...Rotary plate, 17...Lock handle, 1
9...Gripping part, 20...Irregularly shaped protrusion.

Claims

[Scope of utility model registration request]

A top plate with an irregularly shaped hole formed in a predetermined position around the upper surface of the cover of the open tank is fixed, a lock shaft is pivoted to the lower part of the upper plate, and a groove having the same shape as the irregularly shaped hole is formed at the upper end of the lock shaft. Then, the lock can be rotated on the back side of the top plate and stopped at a position that matches the irregularly shaped hole, and the threaded part of the lock metal fitting having a nut is screwed into the screw hole of the lock shaft, and the lock metal fitting is made to have an arbitrary protrusion length. A locking member that engages with the locking member of the locking fitting is protruded and fixed on the inner wall of the opening tank, an opening/closing plate is attached to the top plate, and a shaped hole at the upper end of the locking shaft is fitted with a locking member that can be locked with a nut at a certain position. A cover opening/closing device for an open tank, comprising a lock handle which is fitted and rotated around the lock shaft.