PROBLEM TO BE SOLVED: To configure a variable pitch mechanism of a helicopter to be capable of accurately controlling pitch angles of blades with simple configuration using a few components, with no need of precise adjustment.SOLUTION: A rotor head comprises: a main mast 61 with an outer periphery slidably attached with a pitch plate 16 and a pitch plate boss 17; and a servo motor 19 with an output shaft connected with a pitch lever 18 for vertically moving the pitch plate boss 17. A servo motor 19 is activated to rotate the pitch lever 18 to move the pitch plate boss 17 and the pitch plate 16 upward or downward along the main mast 61, so that the blade holders 13, 13 connected with the pitch plate 16 are inclined to change pitch angles of the blades 14, 14.SELECTED DRAWING: Figure 4

    【課題】ヘリコプタの可変ピッチ機構を、部材点数が少ない簡易な構成とするとともに精密な調整をしなくともブレードのピッチ角を正確に制御することができるように構成する。【解決手段】メインマスト61の外周に、ピッチプレート16とピッチプレートボス17を摺動自在に装着し、ピッチプレートボス17を上下動させるピッチレバー18にサーボモータ19の出力軸を直結する。サーボモータ19を作動させてピッチレバー18を回転させることでピッチプレートボス17とピッチプレート16をメインマスト61に沿って上方又は下方へ変位させ、ピッチプレート16に接続したブレードホルダー13,13を傾動せしめてブレード14,14のピッチ角を変化させる。【選択図】図4


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    Title :

    ROTOR HEAD OF HELICOPTER, MULTI-ROTOR TYPE HELICOPTER AND HELICOPTER


    Additional title:

    ヘリコプタのロータヘッド、マルチロータ型ヘリコプタ及びヘリコプタ


    Contributors:

    Publication date :

    2017-10-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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