JPS60178053U

JPS60178053U - Manhole cover engagement device

Info

Publication number: JPS60178053U
Application number: JP6355784U
Authority: JP
Inventors: 岸本　成弘; 深沢　仁貴
Original assignee: 株式会社　神戸鋳鉄所
Priority date: 1984-04-27
Filing date: 1984-04-27
Publication date: 1985-11-26

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 the drawing]

第１図は従来の係合装置を使用したマンホールの横断面
図、第２図は第１図の係合装置と異なる従来の係合装置
の横断面図、第３図はこの考案の一実施例の平面図、第
４図は第３図におけるＡ−Ａ断面図、第５図は第３図に
おけるＢ−Ｂ断面図、第６図は同実施例の揺動鏝部の正
面図、第７図は同揺動錠部の背面図、第８図は同揺動錠
部の縦断面図、第９図は同実施例の開蓋作業の手順を示
す横断面図である。 −２・・・枠体、４・・・内周面、６・・・蓋体、８・
・・外周壁、４０・・・切欠部、５６・・・揺動鏝部、
５８・・・本体、６２・・・フック部、６４・・・突起
部、６６・・・短軸。 −才５図Figure 1 is a cross-sectional view of a manhole using a conventional engaging device, Figure 2 is a cross-sectional view of a conventional engaging device different from the engaging device in Figure 1, and Figure 3 is an implementation of this invention. A plan view of the example, FIG. 4 is a sectional view taken along line AA in FIG. 3, FIG. 5 is a sectional view taken along line BB in FIG. FIG. 7 is a rear view of the rocking lock, FIG. 8 is a longitudinal cross-sectional view of the rocking lock, and FIG. 9 is a cross-sectional view showing the procedure for opening the lid of the embodiment. -2... Frame body, 4... Inner peripheral surface, 6... Lid body, 8...
... Outer peripheral wall, 40 ... Notch, 56 ... Rocking iron part,
58...Main body, 62...Hook part, 64...Protrusion part, 66...Short shaft. -Sai 5 figure

Claims

[Scope of utility model registration request]

It consists of a lid body, a frame body that supports the lid body on its inner peripheral surface, and a hinge mechanism that connects two parts of the edge of the lid body to the frame body, and opening and closing operations are performed mainly around this hinge mechanism. In the manhole cover, a notch provided on the edge of the lid opposite to the hinge mechanism side, and a hook engagement provided below the notch protruding from the inner peripheral surface of the frame toward the center. Department and
The upper part is swingably supported near the inner side of the notch on the lower surface of the lid, extends downward from the upper part, and is positioned at a distance below the hook engaging part in a closed state. The hook has a bent hook portion, and has a protrusion extending from the vicinity of the upper portion to the upper surface of the hook engaging portion, and is configured to maintain the hook portion in the closed lid state by its own weight against upward displacement of the lid. A manhole cover holding device consisting of a swinging iron part formed.