Patent ID: 7191458

Claim:
A turntable for mounting a disk-like information recording medium to rotate it continuously, comprising: a fixed portion fitted in a centre hole of said disk-like information recording medium; a movable portion fitted in said centre hole with said fixed portion as a reference to be elastically deformed to correct an eccentricity when said disk-like information recording medium is mounted; a shaft portion molded integrally with said fixed portion and into which is inserted a drive shaft of a motor for rotating said turntable continuously; and a return assisting member secured to said shaft portion to return, when said disk-like information recording medium is not mounted, said movable portion from a position when said disk-like information recording medium is mounted to a position when said disk-like information recording medium is not mounted, wherein said movable portion is an elastic displaceable element, a plurality of which are arranged at equal angles about a rotational center shaft; and wherein said return assisting member is a plate spring, a plurality of support elements are projected on the outer peripheral side of a ring-like portion bored with a centre hole, and each of said support elements elastically displaceably supports the lower end of the moveable portion, corresponding to said elastic displaceable element of the movable portion.