JPS6341647U

JPS6341647U -

Info

Publication number: JPS6341647U
Application number: JP13190486U
Authority: JP
Priority date: 1986-08-28
Filing date: 1986-08-28
Publication date: 1988-03-18

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す断面図、第２
図は第１図の−線における部分断面要部説明
図、第３図は操作状態を示す部分断面図、第４図
は部分断面要部説明図、第５図は従来技術を示す
断面斜視図、第６図は第５図の−線断面図で
ある。６……マンホール・溝の側壁、７……フランジ
、８……貫通孔、９……回転軸、１０……係止部
材、１１，１８……ストツパ機構、９ａ……係合
部、１２ｂ，１９……被係合部。 Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a partially sectional explanatory view of the main part taken along the - line in Fig. 1, Fig. 3 is a partial sectional view showing the operating state, Fig. 4 is a partially sectional explanatory view of the main part, and Fig. 5 is a cross-sectional perspective view showing the prior art. , FIG. 6 is a sectional view taken along the line -- in FIG. 5. 6... Side wall of manhole/groove, 7... Flange, 8... Through hole, 9... Rotating shaft, 10... Locking member, 11, 18... Stopper mechanism, 9a... Engaging portion, 12b, 19...Engaged part.

Claims

[Scope of utility model registration request]

A flange is provided on the side wall of a manhole, groove, etc. that has an opening, a through hole is formed in the lid that closes this opening, and an operating shaft is rotatably attached to this through hole.
In the lid locking device, a locking member that can be placed on the lower surface of the flange is provided at the lower part of the operating shaft, and a stopper mechanism for holding the locking member on the lower surface of the flange is provided astride the through hole and the operating shaft. The stopper mechanism is composed of an engaging part formed on an operating shaft, and an engaged part formed in a through hole with which the engaging part engages, and the spring that maintains the engaged state of the stopper mechanism is A locking device for a cover of a manhole, groove, etc., characterized by being provided astride the operating shaft and the cover.