JPH0441137Y2 - - Google Patents
Info
- Publication number
- JPH0441137Y2 JPH0441137Y2 JP8313488U JP8313488U JPH0441137Y2 JP H0441137 Y2 JPH0441137 Y2 JP H0441137Y2 JP 8313488 U JP8313488 U JP 8313488U JP 8313488 U JP8313488 U JP 8313488U JP H0441137 Y2 JPH0441137 Y2 JP H0441137Y2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- ventilation
- hole
- cap body
- ventilation gap
- 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 65
- 230000035939 shock Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 241001272720 Medialuna californiensis Species 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8313488U JPH0441137Y2 (US20020095090A1-20020718-M00002.png) | 1988-06-23 | 1988-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8313488U JPH0441137Y2 (US20020095090A1-20020718-M00002.png) | 1988-06-23 | 1988-06-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0210431U JPH0210431U (US20020095090A1-20020718-M00002.png) | 1990-01-23 |
| JPH0441137Y2 true JPH0441137Y2 (US20020095090A1-20020718-M00002.png) | 1992-09-28 |
Family
ID=31307856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8313488U Expired JPH0441137Y2 (US20020095090A1-20020718-M00002.png) | 1988-06-23 | 1988-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441137Y2 (US20020095090A1-20020718-M00002.png) |
-
1988
- 1988-06-23 JP JP8313488U patent/JPH0441137Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0210431U (US20020095090A1-20020718-M00002.png) | 1990-01-23 |
