| 摘要 |
PURPOSE:To make the shaft center of a motor conform with that of a gear part and properly hold the engagement between the gear part and a wheel gear by receiving the wheel gear for rotating a second cam member pivotally supported by a static member at a determined angle and the gear part engaged with the wheel gear and rotated by the motor in a case. CONSTITUTION:A motor 22, its gear part 23, and a wheel gear 21 engaged therewith are preliminarily integrated into a case. When the case is fixed to a static member 19, the wheel gear 21 is engaged with a second cam member 24 to transmit the rotating torque from the motor 22 to the second cam member 24. As the gears are preliminarily received in the case, the shaft center of the motor 22 can conform with that of the gear part 23, and the engagement be tween the gear part 23 and the wheel gear 21 can be properly held. |
