| 摘要 |
PROBLEM TO BE SOLVED: To provide a reduction gear structure capable of decreasing the backlash between a worm shaft and a worm wheel without causing the failure resulting from what biases the worm shaft. SOLUTION: This reduction gear structure constitutes the worm shaft, the worm wheel to engage with the worm shaft and a biasing means that biases equally one side and other side of the above worm shaft to make border an engagement part with the above worm wheel towards the worm wheel side. COPYRIGHT: (C)2006,JPO&NCIPI
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