Unmanned helicopter
    54.
    发明授权

    公开(公告)号:US09725167B2

    公开(公告)日:2017-08-08

    申请号:US14901591

    申请日:2014-06-26

    IPC分类号: B64C27/82 B64C39/02 B64C27/14

    摘要: An unmanned helicopter includes a drive source, a tail rotor, a shaft unit that transmits a drive force from the drive source to the tail rotor, and an elastic member. The shaft unit includes a drive shaft, a transmission which transmits a drive force from the drive source to the drive shaft, and a transmittal portion that transmits a rotation torque from the drive shaft to the tail rotor. The drive shaft includes a first shaft portion and a second shaft portion. The elastic member is located between the first shaft portion and the second shaft portion.