| 摘要 |
PURPOSE:To achieve high speed increase/decrease ratio compactly by constructing such that the motion of any one of the movable sections will cause motion of other movable sections. CONSTITUTION:Upon motion of movable rack 11 to the right through a piston 1, small pinion 7 for movable rack 11 will start to move in same direction over the movable rack 11. Since large pinion 8 integral with small pinion 7 is geared with the fixed rack 12, such force as to move the fixed rack 12 to the right will function and the reaction will function onto the large pinion 8. Consequently, the large pinion 8 will rotate clockwise to move the integrally formed pinions 7, 8 and a supporting carriage 9 to the right.
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