| 摘要 |
PURPOSE:To enable to control transmission of high turque by an input of low electricity, by a method wherein a rotary wheel driving a load is supported axially on a swingable and lockable lever and is made connectable arbitrarily with a rotary wheel fixed to a motor shaft. CONSTITUTION:A lever 3 is supported by a supportings shaft 2a rotatably, and also a gear 2 driving a load 1 is supported by the supporting shaft 2a rotatably. In addition to the above, a gear 4b gearing into a gear 2 and a rotary wheel 4 connecting with a rotary wheel 5b provided on a motor shaft 5a are supported unitarily and rotatably on a supporting shaft 4a set up on the lever 3 in a standing state. The lever 3 is being turned and energized by a spring 6 in the counterclockwise rotary direction and the rotary wheels 4, 5b are locked at a noncontacting position through a lever 11. An axiciting coil 9 to release the lock and to make power transmission perform is equipped on a yoke 12 on which a supporting shaft 12a of the lever 11 is provided. |
