| 摘要 |
PURPOSE: A gear assembly with different angular velocity ratios is provided to reduce a time and a cost by controlling an angular velocity ratio of forward/reverse rotation without a peripheral device. CONSTITUTION: A base gear(110) is connected to a motor driving axis. A first plate is fixed in front of a motor. A second plate is arranged to face the first plate. A first power transmission unit(500) includes a first embedded gear(250), a first gear(260), and a first rotation axis(270). Both sides of the first rotation axis are rotatably fixed in the first plate and the second plate. The first embedded gear is engaged with the base gear. The second power transmission unit(600) includes a second rotation axis(310), a second embedded gear(290), and a second gear(280). Both sides of the second rotation axis are rotatably fixed in the first and second plates. The second embedded gear is engaged with the first gear. A third power output unit(700) includes a third output unit(340), a third gear(330), and a third embedded gear(320). Both sides of the third output axis are rotatably fixed in the first and second plates. The third embedded gear is engaged with the driving gear of the motor.
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