JPH027844Y2 - - Google Patents
Info
- Publication number
- JPH027844Y2 JPH027844Y2 JP1986197023U JP19702386U JPH027844Y2 JP H027844 Y2 JPH027844 Y2 JP H027844Y2 JP 1986197023 U JP1986197023 U JP 1986197023U JP 19702386 U JP19702386 U JP 19702386U JP H027844 Y2 JPH027844 Y2 JP H027844Y2
- Authority
- JP
- Japan
- Prior art keywords
- shell
- exhaust hole
- helmet
- 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 21
- 238000007599 discharging Methods 0.000 claims description 2
- 238000007664 blowing Methods 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986197023U JPH027844Y2 (de) | 1986-12-22 | 1986-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986197023U JPH027844Y2 (de) | 1986-12-22 | 1986-12-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63102734U JPS63102734U (de) | 1988-07-04 |
| JPH027844Y2 true JPH027844Y2 (de) | 1990-02-26 |
Family
ID=31156371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986197023U Expired JPH027844Y2 (de) | 1986-12-22 | 1986-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH027844Y2 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210420B2 (de) * | 1972-06-26 | 1977-03-24 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210420U (de) * | 1975-07-08 | 1977-01-25 | ||
| JPS557534Y2 (de) * | 1976-06-08 | 1980-02-20 |
-
1986
- 1986-12-22 JP JP1986197023U patent/JPH027844Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210420B2 (de) * | 1972-06-26 | 1977-03-24 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63102734U (de) | 1988-07-04 |
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