JPS59107650U

JPS59107650U - Manhole cover raising device

Info

Publication number: JPS59107650U
Application number: JP19711682U
Authority: JP
Inventors: 安部　武治
Original assignee: 日豊金属工業株式会社
Priority date: 1982-12-30
Filing date: 1982-12-30
Publication date: 1984-07-20
Also published as: JPS618130Y2

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はマンホール蓋の端面に配設された受枠の部分図
、第２図は第１図の分解斜視図、第３図は第１図の断面
図を表わす。１〜マンホール管、２〜ボルト、３，１５゜１７．２３
〜係合凹部、１０〜うオナー板、１３゜２４〜ボルト孔
、１４，１６．２２〜係合突起、２０〜受枠、２１〜載
置部、２５〜突部。第２図第３図　−1 is a partial view of a receiving frame disposed on the end face of a manhole cover, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is a sectional view of FIG. 1. 1-manhole pipe, 2-bolt, 3,15°17.23
- Engagement recess, 10 - Honor plate, 13° 24 - Bolt hole, 14, 16.22 - Engagement protrusion, 20 - Receiving frame, 21 - Placement part, 25 - Protrusion. Figure 2 Figure 3 -

Claims

[Scope of utility model registration request]

A manhole pipe 1 includes a bolt 2 erected on an end surface, and an engaging recess 3 arranged on the inner surface at the position of the port 2; A retaining protrusion 1 that fits into an engaging recess 3 of a manhole pipe 1
4, and an engagement recess 1 provided on the upper surface of the engagement protrusion 14.
5, a retaining protrusion 16 arranged on the central surface, an engaging recess 17 arranged in the same shape on the back side of the engaging protrusion 16, and a bolt hole 13 into which the port 2 of the manhole pipe 1 is inserted. , and a liner plate 10 which is arranged in one or more layers as necessary, and a bolt hole 2 which is arranged on the upper surface of the liner 10 and into which the bolt 2 of the manhole pipe 1 is inserted.
4 and the engagement recess 1 of the liner 10 disposed on the inner back surface.
5, an engagement recess 23 disposed on the back surface into which the engagement protrusion 16 of the liner plate 10 fits, and a protrusion having the same shape as the engagement recess 23 and disposed on the surface. 25, and a manhole cover receiving frame 20 comprising a nut 31 screwed onto the bolt 2 and disposed via a washer 30 on the surface thereof.