JPS58103240U - Locking device for manhole cover - Google Patents

Locking device for manhole cover

Info

Publication number
JPS58103240U
JPS58103240U JP19478181U JP19478181U JPS58103240U JP S58103240 U JPS58103240 U JP S58103240U JP 19478181 U JP19478181 U JP 19478181U JP 19478181 U JP19478181 U JP 19478181U JP S58103240 U JPS58103240 U JP S58103240U
Authority
JP
Japan
Prior art keywords
lid
manhole
connecting shaft
guide tube
locking device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP19478181U
Other languages
Japanese (ja)
Other versions
JPS5927431Y2 (en
Inventor
出口　吉孝
Original Assignee
サツポロ産機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by サツポロ産機株式会社 filed Critical サツポロ産機株式会社
Priority to JP19478181U priority Critical patent/JPS5927431Y2/en
Publication of JPS58103240U publication Critical patent/JPS58103240U/en
Application granted granted Critical
Publication of JPS5927431Y2 publication Critical patent/JPS5927431Y2/en
Expired legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案係止装置を示す平面図、第２図は縦断面
図、第３図は底面図であり、図中Ａはマンホール、１は
開口部、２は蓋、３．４は係止片、６は貫通孔、６ａは
螺子挿通孔、６ｂは螺合部、６Ｃは突起、８は連結軸、
９はガイド筒、１０は螺子を夫々示す。Fig. 1 is a plan view showing the locking device of the present invention, Fig. 2 is a vertical sectional view, and Fig. 3 is a bottom view. In the figures, A is a manhole, 1 is an opening, 2 is a cover, and 3.4 is a A locking piece, 6 is a through hole, 6a is a screw insertion hole, 6b is a threaded part, 6C is a protrusion, 8 is a connecting shaft,
Reference numeral 9 indicates a guide cylinder, and reference numeral 10 indicates a screw.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 蓋の外周部とそれより下方の開口部外周壁とに夫々係止
片を設けこの両係止片を連結軸により連結して蓋を開口
部に着脱自在に取付けるマンホールにおいて、前記蓋の
係止片に、開口部の係止片方向に向けて一体に設けた連
結軸挿通用の肉厚状ガイド筒、ガイド筒にマイホール方
向に向けて貫挿せしめた貫通孔に螺合し連結軸を締結す
る螺子とより構成し、前記ガイド筒の貫通孔におけるマ
ンホール側を螺子挿通部、その反対側を螺合部とし、螺
合部に螺子の脱落を防止する突起を設けてなることを特
徴とするマンホールにおける蓋の係止装置。In a manhole in which a locking piece is provided on the outer circumference of the lid and on the outer peripheral wall of the opening below the lid, and the two locking pieces are connected by a connecting shaft to detachably attach the lid to the opening, the lid is locked. A thick-walled guide tube for inserting the connecting shaft is integrally provided on one side toward the locking side of the opening, and the connecting shaft is screwed into the through hole inserted through the guide tube toward the hole. It is characterized by comprising a screw to be fastened, the manhole side of the through hole of the guide tube is a screw insertion part, the opposite side is a threaded part, and the threaded part is provided with a protrusion to prevent the screw from falling off. A locking device for the lid of a manhole.
JP19478181U 1981-12-29 1981-12-29 Locking device for manhole cover Expired JPS5927431Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19478181U JPS5927431Y2 (en) 1981-12-29 1981-12-29 Locking device for manhole cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19478181U JPS5927431Y2 (en) 1981-12-29 1981-12-29 Locking device for manhole cover

Publications (2)

Publication Number Publication Date
JPS58103240U true JPS58103240U (en) 1983-07-13
JPS5927431Y2 JPS5927431Y2 (en) 1984-08-08

Family

ID=33307711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19478181U Expired JPS5927431Y2 (en) 1981-12-29 1981-12-29 Locking device for manhole cover

Country Status (1)

Country Link
JP (1) JPS5927431Y2 (en)

Also Published As

Publication number Publication date
JPS5927431Y2 (en) 1984-08-08

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