To more effectively amplify sound pressure, even when a horn device is a so-called "spiral horn" which generates a sound by vibration of air, and amplifies the sound pressure by a resonator.SOLUTION: A movable iron core 115 for vibrating a first diaphragm 114 and a moving member 212 for vibrating a second diaphragm 213 are movably connected in synchronization with each other, respectively. The movable iron core 115 is set to be reciprocable between a first state in which a volume of a second chamber 216 decreases, and the volume of a first chamber 118 increases, by displacement to one axial side, and a second state in which the volume of the first chamber 118 decreases, and the volume of the second chamber 216 increases, by the displacement to other axial side. The number of peak values of sound pressure can get to be double, by generating sounds S2, S1 from second and first resonators 220, 130, respectively, by one reciprocating operation of the movable iron core 115, and sound pressure of a horn device 10 can be amplified compared with conventional cases.SELECTED DRAWING: Figure 3

    【課題】空気の振動により音を発生し、共鳴器で音圧を増幅させる所謂「渦巻きホーン」であっても、より効果的に音圧を増幅させる。【解決手段】第1ダイヤフラム114を振動させる可動鉄心115および第2ダイヤフラム213を振動させる移動部材212を、それぞれ互いに同期して移動可能に連結し、可動鉄心115は、軸方向一側への移動により、第2チャンバ216の容積が減少する一方、第1チャンバ118の容積が増大する第1状態と、軸方向他側への移動により、第1チャンバ118の容積が減少する一方、第2チャンバ216の容積が増大する第2状態と、の間において往復動可能に設定されている。可動鉄心115の1回の往復動により第2,第1共鳴器220,130からそれぞれ音S2,S1を発生させて、音圧のピーク値の数を2倍にでき、従前に比してホーン装置10の音圧を増幅させることができる。【選択図】図3


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    Title :

    HORN DEVICE


    Additional title:

    ホーン装置


    Contributors:

    Publication date :

    2020-10-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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



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