JPS645950U - - Google Patents
Info
- Publication number
- JPS645950U JPS645950U JP9724687U JP9724687U JPS645950U JP S645950 U JPS645950 U JP S645950U JP 9724687 U JP9724687 U JP 9724687U JP 9724687 U JP9724687 U JP 9724687U JP S645950 U JPS645950 U JP S645950U
- Authority
- JP
- Japan
- Prior art keywords
- groove
- cover
- lid
- frame
- climb
- 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.)
- Pending
Links
Description
第1図は平面図、第2図は断面図(あけた状態
)、第3図は断面図(とじた状態)。 1は手掛、2は蓋、3は落しこみ部、4は枠。
)、第3図は断面図(とじた状態)。 1は手掛、2は蓋、3は落しこみ部、4は枠。
Claims (1)
- 人孔蓋の枠の一方に溝を設け蓋を90°近くあ
けた際にこの溝に落しこんで建かけるようにし、
蓋の下側(閉じた際)につけた手掛か所につかま
り安全に昇降しようというもの。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9724687U JPS645950U (ja) | 1987-06-24 | 1987-06-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9724687U JPS645950U (ja) | 1987-06-24 | 1987-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS645950U true JPS645950U (ja) | 1989-01-13 |
Family
ID=31322543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9724687U Pending JPS645950U (ja) | 1987-06-24 | 1987-06-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS645950U (ja) |
-
1987
- 1987-06-24 JP JP9724687U patent/JPS645950U/ja active Pending