To provide a cover-shaped sound absorber for suppressing sound generated by a drone.SOLUTION: When insulating sound for an object existing in a flight direction of a drone, a cover, to which a sound absorber is bonded in an L shape (to front and upper sides) when laterally viewing, is fitted. Lower, lateral and rear sides are omitted from the viewpoint of propeller wake and weight. Further, when reducing sound generated in a specific direction, the cover and a flight part are so connected via a connection part as to be capable of independently displacing, and a shield is rotated and displaced with respect to a direction in which sound insulation is requested, thereby realizing sound insulation.SELECTED DRAWING: Figure 92

    【課題】ドローンの発生音を押さえるためのカバー状の吸音材を提供する。【解決手段】ドローンの飛行方向に存在する対象物に対して防音する場合は、横から見ると、L型(前と上)に吸音材を貼ったカバーを取り付ける。下・横・後ろは、プロペラ後流と重量の観点から省略する。更に、特定方向に発する音を小さくする場合は、前記カバーと飛行部とを接続部を介して独立変位可能に接続し、防音させたい方向に対して、楯を回転・変位させることにより、防音を実現する。【選択図】図92


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    Title :

    FLIGHT BODY AND METHOD FOR CONTROL OF FLIGHT BODY


    Additional title:

    飛行体及び飛行体の制御方法


    Contributors:

    Publication date :

    2019-10-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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