发明名称 |
Acoustic device for a head protector |
摘要 |
An acoustic device which includes a sound generating element for generating sounds, a case member having an inner chamber for containing the sound generating element therein, and a sound conducting member extending from the case member for conducting the sounds generated in the inner chamber. In order to removably attach the acoustic device to a helmet, the acoustic device is provided with a holding member for holding the case member on the helmet. The sound conducting member is formed to extend from the case member to a location substantially corresponding to an ear of a wearer of the helmet.
|
申请公布号 |
US4424880(A) |
申请公布日期 |
1984.01.10 |
申请号 |
US19810327695 |
申请日期 |
1981.12.04 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
MURAYAMA, MASATO;AKITA, MITSUGI |
分类号 |
A42B3/30;H04M1/05;H04R1/10;(IPC1-7):H04R25/00 |
主分类号 |
A42B3/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|