| 摘要 |
<P>PROBLEM TO BE SOLVED: To make the connection between an armature shaft and a worm shaft smooth without any need for high degree of accuracy while restraining the increase of rotational resistance and operation sound of a motor in a mechanism which has a positioning part for positioning a motor case and a gear case in the part of each which has a counterpart to the other. <P>SOLUTION: An engaging concavity part and an engaging convex part to position a motor case and a gear case by concavity and convex engagement are provided in the part of each which has a counterpart to the other, a connection member 50 to connect an armature shaft 25 and a worm shaft 43 between the gear case side of the armature shaft 25 and the motor case side of the worm shaft 43 so that the power transmission is possible between them, a loose engaging part 43c which can be eccentric in relation to the connection member 50 is provided on the motor case side of the worm shaft 43, and a slope part 43d which has a slope in relation to the connection member 50 and whose diameter reduces its size as it approaches the side of the connection member 50 is provided closer to the connection member 50 than the loose engaging part 43c. <P>COPYRIGHT: (C)2012,JPO&INPIT |
