JPH069074Y2 - マンホールカバー開閉用操作穴の閉成ロック装置 - Google Patents
マンホールカバー開閉用操作穴の閉成ロック装置Info
- Publication number
- JPH069074Y2 JPH069074Y2 JP16590187U JP16590187U JPH069074Y2 JP H069074 Y2 JPH069074 Y2 JP H069074Y2 JP 16590187 U JP16590187 U JP 16590187U JP 16590187 U JP16590187 U JP 16590187U JP H069074 Y2 JPH069074 Y2 JP H069074Y2
- Authority
- JP
- Japan
- Prior art keywords
- lock
- lid
- operation hole
- opening
- closing
- 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.)
- Expired - Lifetime
Links
- 239000000696 magnetic material Substances 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16590187U JPH069074Y2 (ja) | 1987-10-29 | 1987-10-29 | マンホールカバー開閉用操作穴の閉成ロック装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16590187U JPH069074Y2 (ja) | 1987-10-29 | 1987-10-29 | マンホールカバー開閉用操作穴の閉成ロック装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0169847U JPH0169847U (en]) | 1989-05-09 |
| JPH069074Y2 true JPH069074Y2 (ja) | 1994-03-09 |
Family
ID=31452806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16590187U Expired - Lifetime JPH069074Y2 (ja) | 1987-10-29 | 1987-10-29 | マンホールカバー開閉用操作穴の閉成ロック装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069074Y2 (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7511254B2 (ja) * | 2021-12-09 | 2024-07-05 | 株式会社土井製作所 | 地中埋設電路用蓋盤の開閉装置 |
| CN117465930A (zh) * | 2023-11-08 | 2024-01-30 | 淮北合众机械设备有限公司 | 一种安全性高的皮带机导料槽用可视化检修密封装置 |
-
1987
- 1987-10-29 JP JP16590187U patent/JPH069074Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0169847U (en]) | 1989-05-09 |
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