JPS622864Y2 - - Google Patents
Info
- Publication number
- JPS622864Y2 JPS622864Y2 JP6792981U JP6792981U JPS622864Y2 JP S622864 Y2 JPS622864 Y2 JP S622864Y2 JP 6792981 U JP6792981 U JP 6792981U JP 6792981 U JP6792981 U JP 6792981U JP S622864 Y2 JPS622864 Y2 JP S622864Y2
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- headphone
- pads
- earmuff
- ventilation resistance
- 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 7
- 239000007779 soft material Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Landscapes
- Headphones And Earphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6792981U JPS622864Y2 (US06265458-20010724-C00018.png) | 1981-05-13 | 1981-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6792981U JPS622864Y2 (US06265458-20010724-C00018.png) | 1981-05-13 | 1981-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57181180U JPS57181180U (US06265458-20010724-C00018.png) | 1982-11-17 |
| JPS622864Y2 true JPS622864Y2 (US06265458-20010724-C00018.png) | 1987-01-22 |
Family
ID=29863901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6792981U Expired JPS622864Y2 (US06265458-20010724-C00018.png) | 1981-05-13 | 1981-05-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622864Y2 (US06265458-20010724-C00018.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5981183U (ja) * | 1982-11-22 | 1984-06-01 | ブリヂストン化成品東京販売株式会社 | イヤ−パツド |
-
1981
- 1981-05-13 JP JP6792981U patent/JPS622864Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57181180U (US06265458-20010724-C00018.png) | 1982-11-17 |
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