To provide a folding mechanism of a helicopter transmitter antenna shaft portion with consideration of ease of maintenance and replacement work to make it possible to land safely in an emergency in a transmitter antenna arranged vertically below the lower surface of a helicopter fuselage.SOLUTION: An antenna lifting device 100 includes a transmitter 10 attached on the undersurface of a fuselage, a lifting device 20 provided on the lower part of the transmitter 10, an antenna shaft 40 one end of which is mounted on the lifting device 20 in a swingable manner, and an antenna 50 provided on the other end of the antenna shaft 40. The antenna shaft 40 is provided with a folding mechanism 30 that is arranged on the antenna shaft 40 in a position located higher than the position of a skid of a helicopter when the antenna is deployed vertically downward and bends when a predetermined load is applied. The folding mechanism 30 is for gripping both ends of a plate-shaped fuse plate 31 that breaks when a predetermined load is applied.SELECTED DRAWING: Figure 1

    【課題】ヘリコプターの機体下面の鉛直下方に配置される送信機アンテナにおいて、緊急時に安全に着陸できるように、また、メンテナンスや交換作業性を考慮したヘリコプター送信機アンテナシャフト部の折れ機構を提供することを目的とする。【解決手段】本発明のアンテナ昇降装置100は、機体下面に取り付けられる送信機10と、送信機10の下部に設けられた昇降装置20と、昇降装置20に一端が揺動自在に装着されるアンテナシャフト40と、アンテナシャフト40の他端に設けられるアンテナ50と、から構成され、アンテナシャフト40には、アンテナが鉛直下方に展開された際の前記ヘリコプターのスキッドの位置よりも上部の位置に配置され所定の荷重が加わると折れ曲がる折れ機構30が設けられ、折れ機構30は、所定の荷重が加わると破断する板状のヒューズプレート31の両端を把持する機構である。【選択図】 図1


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    Title :

    FOLDING MECHANISM OF HELICOPTER TRANSMITTER ANTENNA SHAFT PORTION


    Additional title:

    ヘリコプター送信機アンテナシャフト部の折れ機構


    Contributors:

    Publication date :

    2023-10-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H01Q Antennen , ANTENNAS, i.e. RADIO AERIALS / B64C AEROPLANES , Flugzeuge



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