Patent ID: 7073183
Filing Date: 2006-07-04
Classification: G11B

Abstract:
1. A locking mechanism of a disk device, mounted in between a tray for holding and conveying a disk as an information recording medium and a casing for housing the tray to be capable of being inserted and ejected, comprising: a locking pin mounted on either one of members out of the casing or the tray; a locking lever with a locking part on the tip to be engaged with the locking pin, which is held to be capable of oscillating by the other member out of the casing or the tray; and an ejection lever mounted to be capable of oscillating for keeping or releasing the engagement between the locking pin and the locking part by energizing a prescribed oscillation movement to the locking lever; and a holding unit for keeping the engagement between the locking pin and the locking part through holding one end of the ejection lever against the energizing force in the opposite direction which is normally set beforehand; wherein a balance weight is mounted on the opposite side to the ejection lever with respect to the oscillation center of the ejection lever.