| 摘要 |
A programmable power transmission mechanism includes first and second torque output units, each of which has a primary driving gear. When a power source rotates an input gear in one direction, the two primary driving gears rotate in two opposite directions. At this time, a motor shaft of a small-size servomotor can rotate in a first direction so that torque is transmitted from the input gear to a rotating shaft via the first torque output unit. Alternatively, the motor shaft can rotate in a second direction that is opposite to the first direction so that torque is transmitted from the input gear to the rotating shaft via the second torque output unit. As such, the first and second torque output units can drive the rotating shaft to rotate in two opposite directions.
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