PROBLEM TO BE SOLVED: To provide a sound source device of a horn for outputting a chord from one diaphragm.SOLUTION: A sound source device 10 of a horn 1 mounted on a vehicle is provided. The sound source device 10 comprises: a diaphragm 11; a movable iron core 12 including a support unit 121 that is connected to the diaphragm 11 via a support point 121a; and a coil to which a driving signal is inputted to drive the movable iron core 12, the driving signal including a first signal component at a first frequency that resonates with the diaphragm 11 and a second signal component at a second frequency that resonates with the movable iron core 12 and has a harmony relationship with the first frequency. The support point 121a is provided to a position eccentric from the center of the diaphragm 11. The movable iron core 12 has a gravitational eccentric unit 122 connected to the support unit 121 and configured such that the gravitational center is displaced in an eccentric direction of the support point 121a than the support point 121a.SELECTED DRAWING: Figure 1
【課題】本発明は、1つの振動板から和音を出力させるホーンの音源装置を提供することを目的とする。【解決手段】車両に搭載されるホーン1の音源装置10である。音源装置10は、振動板11と、振動板11と支点121aを介して接続される支持部121を含む可動鉄心12と、振動板11と共振する第1周波数の第1信号成分と、可動鉄心12と共振し、且つ第1周波数と和音の関係を持つ第2周波数の第2信号成分とを含む駆動信号が入力され、可動鉄心12を駆動させるコイルと、を備える。支点121aは、振動板11の中心から偏心した位置に設けられる。可動鉄心12は、支持部121に接続され、支点121aよりも支点121aの偏心方向に重心がずれている重心偏心部122を有する。【選択図】図1
SOUND SOURCE DEVICE OF HORN AND HORN COMPRISING THE SAME
ホーンの音源装置、およびこれを備えたホーン
2018-04-05
Patent
Electronic Resource
Japanese
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
Vehicle horn control device and horn sound reduction control system
European Patent Office | 2015
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