(57) Abstract Objective As conservation of the hand of the operator is held, masteringro where it simplifies te structure, attaches and the time can improve operating efficiencyOffer the handle device of rihuto Constitution Time motion bearing unrestrictedly in handle stem 5On left and right both sides of axis 3, accelerator grip 2 Inlaying entrance is installedWith, in outer part edge of the said accelerator grip 2, the radiusTo form the swelling section 2A of the disk condition which it swells to direction, outside direction?And others vis-a-vis the obstacle, with the outer part end face of swelling section 2A luckIt can conservation the hand of the revolution person and also, concerning front direction,Conservation the hand of the operator with, the circumferential part of swelling section 2A left and rightIt can do.
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