| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a compact gear support structure which is excellent in a space efficiency and capable of holding an intermediate gear structuring a gear train for transmitting a driving force at high accuracy. <P>SOLUTION: The gear support structure of an intermediate gear which meshes with two gears to transfer rotation is provided with a gear-shaft support member(s) which supports a gear shaft of the intermediate gear; and a spring member inserted between the gear-shaft support member and the intermediate gear. The spring member includes a gear contacting portion which is in contact with the intermediate gear, and a plurality of elastically deformable elastic support legs extend radially from the gear contacting portion and are in contact with the gear-shaft support member, the spring member biasing the intermediate gear in a direction of an axis of the gear shaft by elastically deforming the elastic support legs. At least part of each of the two gears meshing with the intermediate gear is positioned in an inter-leg space between adjacent elastic support legs of the spring member as viewed in a direction along the axis of the gear shaft. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
