JP2002004315A5 - - Google Patents
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- 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
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000183218A JP4516672B2 (en) | 2000-06-19 | 2000-06-19 | Manhole ladder and fall prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000183218A JP4516672B2 (en) | 2000-06-19 | 2000-06-19 | Manhole ladder and fall prevention device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002004315A JP2002004315A (en) | 2002-01-09 |
| JP2002004315A5 true JP2002004315A5 (en) | 2007-08-02 |
| JP4516672B2 JP4516672B2 (en) | 2010-08-04 |
Family
ID=18683834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000183218A Expired - Fee Related JP4516672B2 (en) | 2000-06-19 | 2000-06-19 | Manhole ladder and fall prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4516672B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4763022B2 (en) * | 2008-06-13 | 2011-08-31 | 長島鋳物株式会社 | Fall prevention ladder for underground structures |
| CN102363966A (en) * | 2011-11-07 | 2012-02-29 | 朱明龙 | Damage control bracket for road inspection well cover |
| JP5636547B1 (en) * | 2014-07-13 | 2014-12-10 | 株式会社オージーエイ | Fall prevention device when the manhole cover is opened and the inner cover for the auxiliary ladder |
| KR101795712B1 (en) * | 2016-03-31 | 2017-11-08 | 주식회사 세계주철 | Sliding manhole cover having a self-standing guide |
| KR102564278B1 (en) * | 2023-01-12 | 2023-08-09 | (주)호남스마트코리아 | safety cover of manhole for preventing safety accident |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019153Y2 (en) * | 1982-06-03 | 1985-06-10 | 長島鋳物株式会社 | Auxiliary ladder for manhole |
| JPS616544U (en) * | 1984-06-15 | 1986-01-16 | 日豊金属工業株式会社 | Frame for iron lid |
| JP2534913Y2 (en) * | 1991-06-24 | 1997-05-07 | 日之出水道機器株式会社 | Ladder for underground structures |
| JP2549064Y2 (en) * | 1991-07-10 | 1997-09-24 | 日之出水道機器株式会社 | Ladder for fall protection for underground structures |
| JP3107373B2 (en) * | 1997-10-03 | 2000-11-06 | 日之出水道機器株式会社 | Falling prevention ladders and underframes for underground structures with falling prevention ladders |
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2000
- 2000-06-19 JP JP2000183218A patent/JP4516672B2/en not_active Expired - Fee Related