JPS6127262Y2 - - Google Patents
Info
- Publication number
- JPS6127262Y2 JPS6127262Y2 JP4791981U JP4791981U JPS6127262Y2 JP S6127262 Y2 JPS6127262 Y2 JP S6127262Y2 JP 4791981 U JP4791981 U JP 4791981U JP 4791981 U JP4791981 U JP 4791981U JP S6127262 Y2 JPS6127262 Y2 JP S6127262Y2
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- duct
- case
- speaker unit
- helmet
- 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
- 230000002093 peripheral effect Effects 0.000 description 8
- 210000005069 ears Anatomy 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
- Headphones And Earphones (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4791981U JPS6127262Y2 (de) | 1981-04-02 | 1981-04-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4791981U JPS6127262Y2 (de) | 1981-04-02 | 1981-04-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57160283U JPS57160283U (de) | 1982-10-07 |
JPS6127262Y2 true JPS6127262Y2 (de) | 1986-08-14 |
Family
ID=29844683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4791981U Expired JPS6127262Y2 (de) | 1981-04-02 | 1981-04-02 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6127262Y2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58144984U (ja) * | 1982-03-25 | 1983-09-29 | 本田技研工業株式会社 | ヘルメツト用スピ−カ |
JP2006287674A (ja) * | 2005-04-01 | 2006-10-19 | Victor Co Of Japan Ltd | バスレフ型ヘッドホン |
WO2020121692A1 (ja) * | 2018-12-14 | 2020-06-18 | ソニー株式会社 | スピーカー装置 |
-
1981
- 1981-04-02 JP JP4791981U patent/JPS6127262Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS57160283U (de) | 1982-10-07 |
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