JPS58172552U - Manhole safety device - Google Patents

Manhole safety device

Info

Publication number
JPS58172552U
JPS58172552U JP6772382U JP6772382U JPS58172552U JP S58172552 U JPS58172552 U JP S58172552U JP 6772382 U JP6772382 U JP 6772382U JP 6772382 U JP6772382 U JP 6772382U JP S58172552 U JPS58172552 U JP S58172552U
Authority
JP
Japan
Prior art keywords
inclined surface
safety device
receiving
edge
manhole safety
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
JP6772382U
Other languages
Japanese (ja)
Other versions
JPS6033166Y2 (en
Inventor
博高 長島
Original Assignee
長島鋳物株式会社
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 長島鋳物株式会社 filed Critical 長島鋳物株式会社
Priority to JP6772382U priority Critical patent/JPS6033166Y2/en
Publication of JPS58172552U publication Critical patent/JPS58172552U/en
Application granted granted Critical
Publication of JPS6033166Y2 publication Critical patent/JPS6033166Y2/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 the drawing]

図面は本考案に係るマンホールの安全装置の実施例を示
したもので、第１図は斜視図、第２図は一部の縦断側面
図、第３図は同じく平面図、第４・　　図は他の実施例
を示す一部の縦断側面図である。 １　　１・・・蓋枠、２・・・傾斜面、３・・・受縁、
４・・・受駒、−−５・・・蓋枠開口部、６・・・テー
パー空隙。The drawings show an embodiment of the manhole safety device according to the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a partial vertical side view, Fig. 3 is a plan view, and Fig. 4 is a plan view. FIG. 7 is a partial vertical side view showing another embodiment. 1 1... Lid frame, 2... Inclined surface, 3... Receiving edge,
4... Receiving piece, --5... Lid frame opening, 6... Taper gap.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 蓋枠１の内周傾斜面２の下に受縁３を突設し、該受縁３
に前記内周傾斜面２と対向して起立させた受駒４の対向
面に内周傾斜面２とは反対方向の傾斜面４′を設け、蓋
枠開口部５を被う網６又はパンチングプレート（メタル
）等を張設した安全枠７の周縁７′を前記内周傾斜面２
と受駒４の傾斜面４′によって形成されたテーパー状空
隙８に嵌めて安定させたマンホールの安全装置。A receiving edge 3 is provided protrudingly below the inner peripheral inclined surface 2 of the lid frame 1, and the receiving edge 3
An inclined surface 4' in the opposite direction to the inner circumferential inclined surface 2 is provided on the opposing surface of the receiving piece 4 which stands up opposite the inner circumferential inclined surface 2, and a net 6 or punching is provided to cover the lid frame opening 5. The peripheral edge 7' of the safety frame 7, on which a plate (metal) etc. is stretched, is connected to the inner peripheral inclined surface 2.
A manhole safety device is stabilized by being fitted into a tapered gap 8 formed by an inclined surface 4' of a receiving piece 4.
JP6772382U 1982-05-10 1982-05-10 Manhole safety device Expired JPS6033166Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6772382U JPS6033166Y2 (en) 1982-05-10 1982-05-10 Manhole safety device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6772382U JPS6033166Y2 (en) 1982-05-10 1982-05-10 Manhole safety device

Publications (2)

Publication Number Publication Date
JPS58172552U true JPS58172552U (en) 1983-11-18
JPS6033166Y2 JPS6033166Y2 (en) 1985-10-03

Family

ID=30077537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6772382U Expired JPS6033166Y2 (en) 1982-05-10 1982-05-10 Manhole safety device

Country Status (1)

Country Link
JP (1) JPS6033166Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011162949A (en) * 2010-02-05 2011-08-25 Hiroyasu Minayoshi Blocking device for hollow column, and method of blocking hollow column using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011162949A (en) * 2010-02-05 2011-08-25 Hiroyasu Minayoshi Blocking device for hollow column, and method of blocking hollow column using the same

Also Published As

Publication number Publication date
JPS6033166Y2 (en) 1985-10-03

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