| 发明名称 |
Loudspeaker e.g. for police, ambulance cars, has driver and outside acoustic horn which is made of sections of flexible material and ductile and has internal acoustic horn which has flexible sections and is ductile |
| 摘要 |
<p>The loudspeaker has a driver and an outside acoustic horn. The outside acoustic horn (14) is made of sections of flexible material and ductile. The acoustic horn has an internal acoustic horn (20), which has flexible sections and is ductile. The acoustic horn is made of flexible plastic or rubber. The flexible plastic or the rubber has a Shore hardness of between 80 and 95 Shores.</p> |
| 申请公布号 |
DE102005047383(A1) |
申请公布日期 |
2007.04.12 |
| 申请号 |
DE20051047383 |
申请日期 |
2005.09.28 |
| 申请人 |
PINTSCH BAMAG ANTRIEBS- UND VERKEHRSTECHNIK GMBH |
发明人 |
TREFFERS, ALEX |
| 分类号 |
H04R1/02;B60Q5/00;G10K13/00;H04R1/32 |
主分类号 |
H04R1/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
