Patent ID: 7310806
Filing Date: 2007-12-18
Classification: G11B

Abstract:
1. A supporting mechanism for an optical pickup for movably supporting a member to be supported along a supporting shaft that serves as a main shaft, comprising: a plurality of supporting members provided on the member to be supported, each of said supporting members contacting with the supporting shaft on at least two contact points so as to be movable on the supporting shaft, the at least two contact points being apart from each other; a feeding shaft being disposed in parallel with the supporting shaft and having an outer circumferential surface on which a threaded portion is formed to move the member to be supported; and a pressing device for pressing the plurality of supporting members against the supporting shaft so that the contact points of each supporting member simultaneously come into contact with the supporting shaft, the pressing device being fixed to the member to be supported and comprising a spring and a rack gear provided directly on the spring to engage with the threaded portion of the feeding shaft so as to move the member to be supported along the supporting shaft.