发明名称 |
ACOUSTIC-SIGNAL EMITTING DEVICE FOR VEHICLES |
摘要 |
An acoustic-signal emitting device for vehicles comprises an electronic control circuit (50) for generating driving signals and a loudspeaker (LDSK). The loudspeaker includes a transducer device (1) connected electrically to the electronic control circuit (50) in order to receive the driving signals and to convert them into acoustic radiation. The transducer device (1) being a moving-coil device with a compression chamber and having dimensions such that it can generate acoustic radiation characteristic of an alarm siren in a first operative condition and acoustic radiation characteristic of an acoustic warning device in a second operative condition. A twisted horn (2) is coupled acoustically with the transducer device (1) in order to propagate the acoustic radiation emitted in the two operative conditions, outside the emitting device (100). |
申请公布号 |
EP1509338(A1) |
申请公布日期 |
2005.03.02 |
申请号 |
EP20020743636 |
申请日期 |
2002.06.06 |
申请人 |
FABBRICA ITALIANA ACCUMULATORI MOTOCARRI MONTECCHIO - F.I.A.M.M. S.P.A. |
发明人 |
LETINTURIER, BORIS;SCHIEPPATI, MICHELE |
分类号 |
H04R9/02;B06B1/02;B60R25/104;G08B3/10;G10K9/122;H04R1/02;H04R9/06;(IPC1-7):B06B1/02;G10K15/02 |
主分类号 |
H04R9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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