JPH0629237Y2 - マンホール蓋の雨水流入防止及びロック装置 - Google Patents
マンホール蓋の雨水流入防止及びロック装置Info
- Publication number
- JPH0629237Y2 JPH0629237Y2 JP12044188U JP12044188U JPH0629237Y2 JP H0629237 Y2 JPH0629237 Y2 JP H0629237Y2 JP 12044188 U JP12044188 U JP 12044188U JP 12044188 U JP12044188 U JP 12044188U JP H0629237 Y2 JPH0629237 Y2 JP H0629237Y2
- Authority
- JP
- Japan
- Prior art keywords
- iron lid
- bar
- hand hook
- hook
- iron
- 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
- 230000002265 prevention Effects 0.000 title claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 176
- 229910052742 iron Inorganic materials 0.000 claims description 88
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 230000005484 gravity Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003449 preventive effect Effects 0.000 claims description 2
- 239000010865 sewage Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12044188U JPH0629237Y2 (ja) | 1988-09-16 | 1988-09-16 | マンホール蓋の雨水流入防止及びロック装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12044188U JPH0629237Y2 (ja) | 1988-09-16 | 1988-09-16 | マンホール蓋の雨水流入防止及びロック装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0242952U JPH0242952U (enrdf_load_stackoverflow) | 1990-03-26 |
| JPH0629237Y2 true JPH0629237Y2 (ja) | 1994-08-10 |
Family
ID=31366552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12044188U Expired - Lifetime JPH0629237Y2 (ja) | 1988-09-16 | 1988-09-16 | マンホール蓋の雨水流入防止及びロック装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629237Y2 (enrdf_load_stackoverflow) |
-
1988
- 1988-09-16 JP JP12044188U patent/JPH0629237Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0242952U (enrdf_load_stackoverflow) | 1990-03-26 |
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