| 摘要 |
PURPOSE:To readily increase the clamping torque range of a motor driven driver by providing a plurality of coils of a commutatorless motor, and arbitrarily selecting the series or parallel connection or partial use of the coils by a switch. CONSTITUTION:When three sets of soils 2 are driven separately at every 120 deg., the coils 2 are composed of two sets of coils to be used in series or parallel connection or the use of only one side by switching a switch 5. Thus, the torque- rotation characteristic of a motor 1 can be largely varied, and when this motor is used as a motor driven driver, a clamping torque can be remarkably varied as the driver. |
