An optical disc drive includes a housing, a positioning shaft fixed on the housing,
and a tray module. The tray module includes a tray installed inside the housing
with the ability to slide, a solenoid fixed on the tray for providing magnetic
force, a latch installed beside the solenoid moving in response to changes in magnetic
force, a push pod fixed on the tray in a rotatable manner with one end connected
to the latch and the other end forming a slot, a hook rotatably fixed on the tray
with one end for engaging the positioning shaft and the other end connected to
the push pod, a torsion spring fixed on the pivot of the push pod, and a compression
spring installed in a track of the housing. One end of the compression spring is
fixed in the slot of the push pod.