JPH0437858Y2 - - Google Patents
Info
- Publication number
- JPH0437858Y2 JPH0437858Y2 JP12439987U JP12439987U JPH0437858Y2 JP H0437858 Y2 JPH0437858 Y2 JP H0437858Y2 JP 12439987 U JP12439987 U JP 12439987U JP 12439987 U JP12439987 U JP 12439987U JP H0437858 Y2 JPH0437858 Y2 JP H0437858Y2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- cap body
- ventilation gap
- shell
- shield plate
- 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 40
- 230000035939 shock Effects 0.000 description 8
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 241001272720 Medialuna californiensis Species 0.000 description 1
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 1
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 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
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12439987U JPH0437858Y2 (US07696358-20100413-C00002.png) | 1987-08-14 | 1987-08-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12439987U JPH0437858Y2 (US07696358-20100413-C00002.png) | 1987-08-14 | 1987-08-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6430325U JPS6430325U (US07696358-20100413-C00002.png) | 1989-02-23 |
JPH0437858Y2 true JPH0437858Y2 (US07696358-20100413-C00002.png) | 1992-09-04 |
Family
ID=31374095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12439987U Expired JPH0437858Y2 (US07696358-20100413-C00002.png) | 1987-08-14 | 1987-08-14 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0437858Y2 (US07696358-20100413-C00002.png) |
-
1987
- 1987-08-14 JP JP12439987U patent/JPH0437858Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6430325U (US07696358-20100413-C00002.png) | 1989-02-23 |