Patent ID: 6957442
Filing Date: 2005-10-18
Classification: F16F,G11B,Y10T

Abstract:
1. A spindle motor in an optical disc player, comprising: a motor having a rotation shaft; a turntable rotating together with the rotation shaft and having a track groove having a circular shape formed around the rotation shaft; moving members disposed in the track groove to move along the track groove to compensate for an eccentric force; a collision and dispersion inducing unit having a height from the track groove to induce a rebounding phenomenon between the moving members to be spaced-apart from each other when the moving members are arranged in a non-uniform displacement due to a centrifugal force and a friction between the track groove and the moving members; wherein the collision and dispersion inducing unit comprises: a plurality of protrusions disposed on the track groove in an interval, and the protrusions have a height so that the moving members do not contact the protrusions when the moving members is stationary.