JPS6313223Y2 - - Google Patents
Info
- Publication number
- JPS6313223Y2 JPS6313223Y2 JP19183483U JP19183483U JPS6313223Y2 JP S6313223 Y2 JPS6313223 Y2 JP S6313223Y2 JP 19183483 U JP19183483 U JP 19183483U JP 19183483 U JP19183483 U JP 19183483U JP S6313223 Y2 JPS6313223 Y2 JP S6313223Y2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- earmuff
- wearer
- helmet
- recess
- 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
- 125000006850 spacer group Chemical group 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19183483U JPS6097730U (ja) | 1983-12-13 | 1983-12-13 | ヘルメツト |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19183483U JPS6097730U (ja) | 1983-12-13 | 1983-12-13 | ヘルメツト |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6097730U JPS6097730U (ja) | 1985-07-03 |
| JPS6313223Y2 true JPS6313223Y2 (en, 2012) | 1988-04-14 |
Family
ID=30413003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19183483U Granted JPS6097730U (ja) | 1983-12-13 | 1983-12-13 | ヘルメツト |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6097730U (en, 2012) |
-
1983
- 1983-12-13 JP JP19183483U patent/JPS6097730U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6097730U (ja) | 1985-07-03 |
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