JPS62138748U

JPS62138748U -

Info

Publication number: JPS62138748U
Application number: JP2381986U
Authority: JP
Priority date: 1986-02-20
Filing date: 1986-02-20
Publication date: 1987-09-01

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す断面図、第
２図はストツパ機構を示すもので、第１図の―
線における平面図、第３図は第１図の―に
おける平面図、第４図は他の実施例のストツパ機
構を示す断面図、第５図は従来のロツク装置の断
面斜視図、第６図は第５図の―線における平
面図である。１……溝、３……蓋、７……フランジ、８，１
８……貫通孔、１０，２１……回転軸、１１，２
２……回転カム、１２，１９……ストツパ機構。 Fig. 1 is a sectional view showing an embodiment of this invention, and Fig. 2 shows a stopper mechanism.
FIG. 3 is a plan view taken along line - in FIG. 1, FIG. 4 is a sectional view showing a stopper mechanism of another embodiment, FIG. 5 is a sectional perspective view of a conventional locking device, and FIG. is a plan view taken along the line - in FIG. 1...Groove, 3...Lid, 7...Flange, 8,1
8... Through hole, 10, 21... Rotating shaft, 11, 2
2... Rotating cam, 12, 19... Stopper mechanism.

Claims

[Scope of utility model registration request]

A flange is provided on the side wall of the manhole, groove, etc., a through hole is formed in the lid, a rotating shaft is rotatably mounted in the through hole, and a rotating cam that can be placed on the lower surface of the flange is provided at the lower end of the rotating shaft. 1. A locking device for a lid for a manhole, groove, etc., characterized in that a stopper mechanism is provided in a through hole and a rotating shaft to restrict rotation while the rotating cam is located on the lower surface of the flange.