JP2002004315A5 - - Google Patents

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Publication number
JP2002004315A5
JP2002004315A5 JP2000183218A JP2000183218A JP2002004315A5 JP 2002004315 A5 JP2002004315 A5 JP 2002004315A5 JP 2000183218 A JP2000183218 A JP 2000183218A JP 2000183218 A JP2000183218 A JP 2000183218A JP 2002004315 A5 JP2002004315 A5 JP 2002004315A5
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JP
Japan
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.)
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Application number
JP2000183218A
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Japanese (ja)
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JP2002004315A (ja
JP4516672B2 (ja
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Priority to JP2000183218A priority Critical patent/JP4516672B2/ja
Priority claimed from JP2000183218A external-priority patent/JP4516672B2/ja
Publication of JP2002004315A publication Critical patent/JP2002004315A/ja
Publication of JP2002004315A5 publication Critical patent/JP2002004315A5/ja
Application granted granted Critical
Publication of JP4516672B2 publication Critical patent/JP4516672B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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JP2000183218A 2000-06-19 2000-06-19 マンホールの梯子兼用転落防止装置 Expired - Fee Related JP4516672B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000183218A JP4516672B2 (ja) 2000-06-19 2000-06-19 マンホールの梯子兼用転落防止装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000183218A JP4516672B2 (ja) 2000-06-19 2000-06-19 マンホールの梯子兼用転落防止装置

Publications (3)

Publication Number Publication Date
JP2002004315A JP2002004315A (ja) 2002-01-09
JP2002004315A5 true JP2002004315A5 (enrdf_load_stackoverflow) 2007-08-02
JP4516672B2 JP4516672B2 (ja) 2010-08-04

Family

ID=18683834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000183218A Expired - Fee Related JP4516672B2 (ja) 2000-06-19 2000-06-19 マンホールの梯子兼用転落防止装置

Country Status (1)

Country Link
JP (1) JP4516672B2 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4763022B2 (ja) * 2008-06-13 2011-08-31 長島鋳物株式会社 地下構造物用転落防止梯子
CN102363966A (zh) * 2011-11-07 2012-02-29 朱明龙 马路窨井盖防损支架
JP5636547B1 (ja) * 2014-07-13 2014-12-10 株式会社オージーエイ マンホールの蓋を開けた時の落下防止装置兼補助梯子用中蓋
KR101795712B1 (ko) * 2016-03-31 2017-11-08 주식회사 세계주철 자립식 가이드를 갖는 슬라이딩 맨홀 커버
KR102564278B1 (ko) * 2023-01-12 2023-08-09 (주)호남스마트코리아 안전사고 방지를 위한 맨홀용 안전커버
CN117904997B (zh) * 2024-03-20 2024-06-07 山西申欧信息工程有限公司 一种具有防护功能的智能预警装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6019153Y2 (ja) * 1982-06-03 1985-06-10 長島鋳物株式会社 マンホ−ル用補助梯子
JPS616544U (ja) * 1984-06-15 1986-01-16 日豊金属工業株式会社 鉄蓋用受枠
JP2534913Y2 (ja) * 1991-06-24 1997-05-07 日之出水道機器株式会社 地下構造物用梯子
JP2549064Y2 (ja) * 1991-07-10 1997-09-24 日之出水道機器株式会社 地下構造物用蓋の梯子兼用転落防止体
JP3107373B2 (ja) * 1997-10-03 2000-11-06 日之出水道機器株式会社 転落防止用梯子および転落防止用梯子を備えた地下構造物用蓋の受枠

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