| 摘要 |
PURPOSE:To contrive to reduce the number of components, to improve assembly operativeness and to prevent unevenness of rotational torque by a method wherein a spring shaft is provided in the middle of a driver bit. CONSTITUTION:An output shaft 6 of a motor 2 fixed to a housing plate 4 penetrates the housing plate 4 and engages with a joint 20. A tip of the joint 20 is retained by a radial bearing 12, and the tip is supported by a driver bit 10 in a one-side condition to form a flexible shaft bit 24 provided with a spring shaft 22 in the middle thereof. When the output shaft 6 of the motor 6 rotates, a rotational part of an adjusting objective component is rotated to adjust a rotational position. In this embodiment, even if a mounting position scatters on a printed board of the adjusting objective component, the scattering can be absorbed and followed without altering the position of the motor 2. Accordingly, it is necessary to provide a gap in the radius direction between the bearing 12 and a housing 16. Thus, it is possible to contrive to reduce the number of the components, and to improve assembly operativeness and rotational precision. |
