| 摘要 |
<p>PURPOSE:To provide a motor driving device capable of improving effectiveness by providing two gear trains whose characteristics are different than the conventional practice. CONSTITUTION:The motor driving device is provided with a motor 1, a first gear train U1 which has a first pinion gear 3b fitted to a motor output shaft 1a and can transmit rotation taken out from the first pinion gear 3b up to load sides 17-25, a second gear train L1 which has a second pinion gear 3a provided separately from the first pinion gear 3b and fitted to the motor output shaft 1a, can transmit the rotation taken out from the second pinion gear 3a up to the load sides and has different characteristics from the first gear train U1 and the gear train selecting members 13, 15, 37 and 39 connecting the first gear train U1 to the load sides and disconnecting the second gear train L1 therefrom at the time of rotating the motor 1 in one direction (the direction of R2) and connecting the second gear train L1 to the load sides and disconnecting the first gear train U1 therefrom at the time of rotation the motor 1 in the other direction (the direction of R1).</p> |
