Patent ID: 6377451
Filing Date: 2002-04-23
Classification: G06F

Abstract:
A door mechanism comprising:a frame having an insertion port; first and second door panels each having a pivot shaft connected to the frame such that the pivot shaft can rotate about an axis thereof, the first and second door panels being supported by the frame such that they can swing about the respective pivot shafts between closed positions in which the first and second door panels are situated in a single plane and close the insertion port, and open positions in which the first and second door panels open the insertion port, the first and second door panels being swung apart in opposite directions when they are shifted from the respective closed positions to the respective open positions; and a spring urging the first and second door panels toward the respective closed positions, the spring having a first coil section mounted on the pivot shaft of the first door panel, a second coil section mounted on the pivot shaft of the second door panel, arm sections each extending from one end of a corresponding one of the first and second coil sections and urging the first and second door panels toward the respective closed positions, and a connecting section bridging another end of each of the first and second coil sections.