| 摘要 |
A plastic member having a pivot pin bearing constituted by a hole of polygonal cross-section is disclosed. Parallel to each side of said polygonal hole and spaced slightly outwardly therefrom, there is a cavity or relief in said member to provide a capability for sufficient deflection of said sides to compensate for small dimensional variations. Since the two ends of each side are fixed, the stiffness of the bearing is maintained so as to minimize the tendency of a part pivoted in said bearing to vibrate when off-center forces are applied.
|
