Patent ID: 8403190

Claim:
A tray assembly comprising: a tray having a guide slot; a hinge arm including a cam-shaped portion and rotably coupled to the tray; a cover fixed to an end portion of the hinge arm; a drawer box storable in the tray and having a guide pin at a side portion thereof, the guide pin passing through the guide slot of the tray and being movable along the guide slot by selectively engaging with the cam-shaped portion of the hinge arm, wherein, when the guide pin is placed at a first position of the guide slot, the guide pin is slidable along the guide slot without interference with the hinge arm while the cover is maintained open, such that the drawer box fixed to the guide pin is movable into the tray; and when the guide pin is placed at the first position or between the first position and a second position of the guide slot, the guide pin is slidable along the guide slot by the cam-shaped portion of the hinge arm when the hinge arm is rotated, such that the drawer box fixed to the guide pin is movable into the tray and the cover closes the tray.