Patent ID: 8069456

Claim:
A guide mechanism for guiding an optical pick-up head to move on a chassis, the guide mechanism comprising: a carriage comprising a main body for receiving the optical pick-up head, and a first engaging portion and a second engaging portion formed on two opposite sides of the main body, the first engaging portion comprising a first arm and a second arm connected with each other at their roots and extending from the main body, the first engaging portion defining a slot between the first and second arms and a recess in a sidewall of the second arm opposite to the slot; a first guide rail slidably received in the slot of the first engaging portion; a second guide rail slidably engaging with the second engaging portion; and a buffering device clipped between the first guide rail and the first engaging portion, wherein the buffering device comprises a fastener portion, the fastener portion forms a protrusion in the inner side thereof, the protrusion engages with the recess to fasten the buffering device to the first engaging portion.