JPH0724423Y2 - マンホール蓋構造 - Google Patents
マンホール蓋構造Info
- Publication number
- JPH0724423Y2 JPH0724423Y2 JP1989078701U JP7870189U JPH0724423Y2 JP H0724423 Y2 JPH0724423 Y2 JP H0724423Y2 JP 1989078701 U JP1989078701 U JP 1989078701U JP 7870189 U JP7870189 U JP 7870189U JP H0724423 Y2 JPH0724423 Y2 JP H0724423Y2
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- cushioning material
- cover
- manhole iron
- asphalt mixture
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 78
- 239000000463 material Substances 0.000 claims description 51
- 229910052742 iron Inorganic materials 0.000 claims description 36
- 239000010426 asphalt Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 239000010410 layer Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989078701U JPH0724423Y2 (ja) | 1989-07-05 | 1989-07-05 | マンホール蓋構造 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989078701U JPH0724423Y2 (ja) | 1989-07-05 | 1989-07-05 | マンホール蓋構造 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0318253U JPH0318253U (en]) | 1991-02-22 |
| JPH0724423Y2 true JPH0724423Y2 (ja) | 1995-06-05 |
Family
ID=31622201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989078701U Expired - Lifetime JPH0724423Y2 (ja) | 1989-07-05 | 1989-07-05 | マンホール蓋構造 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724423Y2 (en]) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5428440A (en) * | 1977-08-04 | 1979-03-03 | Hinode Suidou Kiki Kk | Manhole cover structure |
| JPS60195343U (ja) * | 1984-06-02 | 1985-12-26 | 尾見 昭良 | アスファルト舗装道路用マンホール |
-
1989
- 1989-07-05 JP JP1989078701U patent/JPH0724423Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0318253U (en]) | 1991-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |