JPH074255Y2 - 階段の踏板 - Google Patents
階段の踏板Info
- Publication number
- JPH074255Y2 JPH074255Y2 JP1990043931U JP4393190U JPH074255Y2 JP H074255 Y2 JPH074255 Y2 JP H074255Y2 JP 1990043931 U JP1990043931 U JP 1990043931U JP 4393190 U JP4393190 U JP 4393190U JP H074255 Y2 JPH074255 Y2 JP H074255Y2
- Authority
- JP
- Japan
- Prior art keywords
- iron plate
- tread
- surface material
- plate
- rubber
- 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 - Fee Related
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 60
- 229910052742 iron Inorganic materials 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 20
- 229920003051 synthetic elastomer Polymers 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 239000005061 synthetic rubber Substances 0.000 claims description 7
- 239000011162 core material Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990043931U JPH074255Y2 (ja) | 1990-04-24 | 1990-04-24 | 階段の踏板 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990043931U JPH074255Y2 (ja) | 1990-04-24 | 1990-04-24 | 階段の踏板 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH042821U JPH042821U (en]) | 1992-01-10 |
| JPH074255Y2 true JPH074255Y2 (ja) | 1995-02-01 |
Family
ID=31556771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990043931U Expired - Fee Related JPH074255Y2 (ja) | 1990-04-24 | 1990-04-24 | 階段の踏板 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074255Y2 (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7058404B1 (ja) * | 2022-01-04 | 2022-04-22 | 美藤 雅康 | 鋼板の箱型板材内にバサモルタルを充填して造る耐火階段。 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5096315U (en]) * | 1973-12-29 | 1975-08-12 |
-
1990
- 1990-04-24 JP JP1990043931U patent/JPH074255Y2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH042821U (en]) | 1992-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |