JPS6328177Y2 - - Google Patents
Info
- Publication number
- JPS6328177Y2 JPS6328177Y2 JP1983006406U JP640683U JPS6328177Y2 JP S6328177 Y2 JPS6328177 Y2 JP S6328177Y2 JP 1983006406 U JP1983006406 U JP 1983006406U JP 640683 U JP640683 U JP 640683U JP S6328177 Y2 JPS6328177 Y2 JP S6328177Y2
- Authority
- JP
- Japan
- Prior art keywords
- air intake
- air
- helmet
- ventilation groove
- ventilation
- 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
Links
- 238000009423 ventilation Methods 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 17
- 230000035939 shock Effects 0.000 claims description 15
- 210000003128 head Anatomy 0.000 description 22
- 238000010521 absorption reaction Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920006328 Styrofoam Polymers 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP640683U JPS59113325U (ja) | 1983-01-20 | 1983-01-20 | ヘルメツト |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP640683U JPS59113325U (ja) | 1983-01-20 | 1983-01-20 | ヘルメツト |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59113325U JPS59113325U (ja) | 1984-07-31 |
| JPS6328177Y2 true JPS6328177Y2 (US06534493-20030318-C00166.png) | 1988-07-29 |
Family
ID=30137965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP640683U Granted JPS59113325U (ja) | 1983-01-20 | 1983-01-20 | ヘルメツト |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59113325U (US06534493-20030318-C00166.png) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0213449Y2 (US06534493-20030318-C00166.png) * | 1984-11-16 | 1990-04-13 | ||
| JPS61125126U (US06534493-20030318-C00166.png) * | 1985-01-21 | 1986-08-06 | ||
| JPH0421790Y2 (US06534493-20030318-C00166.png) * | 1985-12-28 | 1992-05-19 | ||
| JPH0516182Y2 (US06534493-20030318-C00166.png) * | 1988-10-31 | 1993-04-28 | ||
| JPH0519296Y2 (US06534493-20030318-C00166.png) * | 1989-12-08 | 1993-05-21 | ||
| CA2532561A1 (en) | 2003-07-18 | 2005-01-27 | Builmatel Co., Ltd. | Safety hat |
| AU2017222224B2 (en) * | 2016-02-25 | 2022-02-10 | Contego Sports Limited | Protective headgear |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53117321U (US06534493-20030318-C00166.png) * | 1977-02-21 | 1978-09-18 | ||
| JPS5678828U (US06534493-20030318-C00166.png) * | 1979-11-17 | 1981-06-26 |
-
1983
- 1983-01-20 JP JP640683U patent/JPS59113325U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59113325U (ja) | 1984-07-31 |
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