| 摘要 |
A transmission system is that an end of a first bearing is fixed. Another end of the first bearing is sheathed in a center of a first gear. An axis of the first bearing corresponds to the center of the first gear. An end of the second bearing is sheathed in a section of the first gear which is at a periphery of the first bearing sheathed. A center of the second gear corresponds to an axis of the second bearing, and the center of the second gear relative to the first gear is sheathed in another end of the second bearing. The third bearing is sheathed in a center of the third gear. The center of the third gear corresponds to an axis of the third bearing. The third gear also gears into the first gear. The third bearing is sheathed in a section which diverges from a center of the fourth gear. The fourth gear also gears into the second gear. An end of the crank is disposed on a second gear and is at a periphery of the second bearing. The force transformation between the rotational motion and the rectilinear motion can be achieved through the transmission system. The force for the rotational motion is inputted or outputted by the third bearing, and the force for the rectilinear motion is inputted or outputted by connecting rods connecting to the crank.
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