| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a speed reduction mechanism which can sufficiently supply lubrication oil to a second bearing, and a motor rotation force transmission device equipped with the same. <P>SOLUTION: The speed reduction transmission mechanism 5 comprises: an input member 50 which has a center hole 50a and a plurality of pin insertion holes 50b and is composed of an outer tooth gear which performs circular motion while having a prescribed eccentric amount; a self-rotation force imparting member 52 composed of an inner tooth gear which is engaged with the input member 50 and has a larger number in teeth than those of the outer tooth gear; and an output member 53 which receives a self-rotation force imparted to the input member 50 by the self-rotation force imparting member 52 and outputs it, and penetrates the plurality of pin insertion holes 50b. In the output member 53, needle-shaped rolling bearings 55 are attached to regions which can contact with internal peripheral faces of the plurality of pin insertion holes 50b, the input member 50 has third oil supply passages 642 which reach the plurality of pin insertion holes 50b from the center hole 50a, and the third oil supply passages 642 supply the lubrication oil to the rolling bearings 55 by centrifugal forces which are generated accompanied by the rotation of a motor shaft 42. <P>COPYRIGHT: (C)2013,JPO&INPIT |
