JPS627446U

JPS627446U -

Info

Publication number: JPS627446U
Application number: JP10021185U
Authority: JP
Priority date: 1985-07-01
Filing date: 1985-07-01
Publication date: 1987-01-17

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す縦断側面概略
図、第２図は蓋本体を閉じた状態の平面説明図、
第３図は本考案の蓋を閉めた状態の要部縦断側面
図、第４図は本考案の蓋の解錠状態を示す要部縦
断側面図、第５図は本考案の蓋を閉じる状態の要
部縦断側面図、第６図は本考案における操作体の
の説明図、第７図は本考案における係止体の説明
図、第８図イは従来の蓋の錠の部分の説明図、同
図ロは従来の蓋用錠の概略説明図である。１は受枠、２は蓋本体、３は操作体、４は係止
体、５は鍵穴、６は手鉤、２０は連係子、２１は
ストツパー。 Fig. 1 is a schematic vertical cross-sectional side view showing an embodiment of the present invention, Fig. 2 is an explanatory plan view of the lid body in a closed state;
Fig. 3 is a longitudinal side view of the main part of the invention with the lid closed, Fig. 4 is a longitudinal sectional side view of the main part showing the lid of the invention in the unlocked state, and Fig. 5 is the lid of the invention with the lid closed. FIG. 6 is an explanatory diagram of the operating body of the present invention, FIG. 7 is an explanatory diagram of the locking body of the present invention, and FIG. 8 A is an explanatory diagram of the lock portion of the conventional lid. , FIG. 3B is a schematic explanatory diagram of a conventional lid lock. 1 is a receiving frame, 2 is a lid body, 3 is an operating body, 4 is a locking body, 5 is a keyhole, 6 is a hand hook, 20 is a link, and 21 is a stopper.

Claims

[Scope of Claim for Utility Model Registration] (1) Consisting of a lid body that is connected to the receiving frame so that it can be opened and closed, and an operating body and a locking body that are rotatably attached to the inner surface of the lid body, and the operating body is When a hand hook is inserted through the keyhole formed in the lid body, it is pushed and rotated by the hand hook, and when the hand hook is removed, it rotates under its own weight and automatically returns to its original state, and is locked. When the lid body is inserted into the receiving frame, the body does not engage with the receiving frame, but once the lid body is inserted into the receiving frame, it rotates by its own weight and automatically engages with the receiving frame and becomes locked, and the operating body is pushed with a hand hook. When the handhook is inserted into the keyhole, the unlocked state is maintained as long as the handhook is inserted into the keyhole, and the operating body is rotated to its original position when the handhook is removed from the keyhole. A manhole cover with a lock that returns to its original state when it moves. (2) A claim for utility model registration in which the locking body consists of a link that rotates in conjunction with the operating body, and a stopper that is attached to the link so that it rotates upward but does not rotate downward. The manhole cover described in paragraph 1 with a lock.