| 摘要 |
PURPOSE:To control rotating position accuracy of an output shaft by providing a terminal pin which electrically connects the coil part of a motor and the external part of the motor on one end face of the motor and the output shaft of a geared motor on the other end face. CONSTITUTION:The output shaft 3 of a motor is supported so that it can be rotated freely with by upper and lower cases 1 and 2 and is projected from the end face of the side of the upper case 1 toward the outside of the motor. An output gear 4 fixed to the output shaft 3 is engaged to a middle gear 5 in the previous stage, the middle gear 5 is engaged to a pinion gear 8 attached to a magnet 7 by a rotor 6, and each of them is supported by the upper and lower cases so that it can be rotated freely. A terminal pin 14 electrically connected to the outside of the motor is fixed to a bobbin 13 of a coil 10. The terminal pin 14 is extended in parallel with the output shift 3 outside the motor through the lower case 2, thus finely controlling the rotating position accuracy of the output shaft 3 via gear wheel rows 4, 5, and 8 which are used to change the speed of the motor rotor 6. |
