Patent ID: 6662500
Filing Date: 2003-12-16
Classification: B61D,E05F,E05Y

Abstract:
A door apparatus for opening and closing two doors supported on a horizontal door rail, comprising,an actuator connected to one of the two doors for driving the one door, a direction conversion mechanism connected to the other of the two doors for transmitting a movement of the one door to the other door to move the other door in a direction opposite to the movement of the one door, said direction conversion mechanism having a first stage engaging portion and a second stage engaging portion smaller in size than the first stage engaging portion and situated adjacent to the first stage engaging portion, a locking mechanism having a latch engaging the direction conversion mechanism for locking the two doors and non-engaging the direction conversion mechanism for allowing the two doors to open, said latch being located in the first stage engaging portion to semi-lock the doors to be able to open manually and in the second stage engaging portion to lock the doors completely, and a stopper mechanism cooperating with the direction conversion mechanism for locating the latch at the first stage engaging portion, said stopper mechanism releasing the latch located in the first stage engaging portion to allow the latch to enter the second stage engaging portion when a predetermined condition is satisfied.