JPH0519291Y2 - - Google Patents
Info
- Publication number
- JPH0519291Y2 JPH0519291Y2 JP1989131995U JP13199589U JPH0519291Y2 JP H0519291 Y2 JPH0519291 Y2 JP H0519291Y2 JP 1989131995 U JP1989131995 U JP 1989131995U JP 13199589 U JP13199589 U JP 13199589U JP H0519291 Y2 JPH0519291 Y2 JP H0519291Y2
- Authority
- JP
- Japan
- Prior art keywords
- shell
- liner
- shock absorbing
- absorbing liner
- pair
- 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
- 230000035939 shock Effects 0.000 claims description 53
- 238000004891 communication Methods 0.000 description 23
- 238000003780 insertion Methods 0.000 description 18
- 230000037431 insertion Effects 0.000 description 18
- 238000009423 ventilation Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989131995U JPH0519291Y2 (de) | 1989-11-13 | 1989-11-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989131995U JPH0519291Y2 (de) | 1989-11-13 | 1989-11-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0370227U JPH0370227U (de) | 1991-07-15 |
JPH0519291Y2 true JPH0519291Y2 (de) | 1993-05-21 |
Family
ID=31679472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989131995U Expired - Lifetime JPH0519291Y2 (de) | 1989-11-13 | 1989-11-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0519291Y2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6180014B2 (ja) * | 2013-03-19 | 2017-08-16 | 株式会社 日本パレード | 帽子付きヘルメット |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5725404A (en) * | 1980-06-24 | 1982-02-10 | Jie Pe A Intern | Safety helmet and method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61206632U (de) * | 1985-06-17 | 1986-12-27 |
-
1989
- 1989-11-13 JP JP1989131995U patent/JPH0519291Y2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5725404A (en) * | 1980-06-24 | 1982-02-10 | Jie Pe A Intern | Safety helmet and method |
Also Published As
Publication number | Publication date |
---|---|
JPH0370227U (de) | 1991-07-15 |
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