| 摘要 |
<p>PURPOSE:To improve the electric noise performance of a DC motor by forming a bracket of synthetic resin buried with a metallic bracket plate, holding bearings by an elastic projection piece and making the bracket plate contact with the bearing, thereby improving an automatic governing performance. CONSTITUTION:A ring-shaped metallic bracket plate 25 is buried in synthetic resin, thereby forming an end bracket 21. A recess 23 for supporting a bearing is provided at the center of the bracket 21, and a plurality of elastic projection pieces 24 are formed integrally with the recess 23. A bearing 22 is pressed and held by the spherical contacting surface 26 of the piece 24, and the inner periphery of the plate 25 is contacted directly with the bearing 22. In this manner, the bearing 22 can be preferably held and the bearing 22 can be grounded, thereby improving the electric noise performance.</p> |
