Patent ID: 8272004
Filing Date: 2012-09-18
Classification: G11B

Abstract:
1. An optical disc clamping device disposed on a base plate of an optical disc drive, wherein the base plate has a center hole disposed above a spindle motor, a first slide recess and a second slide recess are disposed on two opposite ends of the center hole, the base plate further has a slide channel whose sliding direction is perpendicular to the two slide recesses, and the optical disc clamping device comprises: a driving bar disposed to slide in the slide channel; a first slider disposed in the first slide recess, wherein the first slider slides in the first slide recess, and one end of the first slider near the center hole is pivotally connected to the first pivotal rod; a second slider disposed in the second slide recess, wherein the second slider slides in the second slide recess, and one end of the second slider near the center hole is pivotally connected to the second pivotal rod; a first linking bar, wherein one end of the first linking bar is pivotally connected to one side of the driving bar and the other end of the first linking bar is extended to the first slide recess and pivotally connected to the first slider; a second linking bar, wherein one end of the second linking bar is pivotally connected to the other side of the driving bar opposite to the first linking bar, and the other end of the second linking bar is extended to the second slide recess and pivotally connected to the second slider; a carrier disposed in the center hole, wherein the carrier has a round hole, and the two ends of the carrier are respectively pivotally connected to the first pivotal rod and the second pivotal rod; a chucking disk disposed on the round hole of the carrier; wherein, when the driving bar is moved towards the center hole, the first linking bar and the second linking bar are synchronously driven for enabling the first slider and the second slider to respectively move the first pivotal rod and the second pivotal rod away from the center hole for driving the carrier to carry the chucking disk to be moved from the spindle motor, and when the driving bar is moved away from the center hole, the first linking bar and the second linking bar are synchronously driven for enabling the first slider and the second slider to respectively drive the first pivotal rod and the second pivotal rod towards the center hole for driving the carrier to carry the chucking disk to contact the spindle motor.