Patent ID: 6401393
Filing Date: 2002-06-11
Classification: E05F,E05Y

Abstract:
A closure sequence controller for a pair of first and second door leaves pivotable with respect to a door frame, each door leaf having a hinge edge at which the door is hingedly attached to the door frame, the first door leaf being provided with a first door closer and a first pull arm for closing the first door leaf, the second door leaf being provided with a second door closer and a second pull arm for closing the second door leaf, and the door frame being provided with an elongate guide member for mounting to the door frame for guiding movement of distal ends of the pull arms respectively longitudinally of the guide member, and wherein during closing movement of the second door leaf, the distal end of the second pull arm moves along the guide member initially in an allowing direction, away from the hinge edge of the second door leaf, and subsequently in a blocking direction, towards the hinge edge of the second door leaf, and the closure sequence controller comprises a blocking device which, during closing movement of the second door leaf, allows movement of the distal end of the second pull arm past the blocking device in the allowing direction and selectively prevents return movement of the distal 7a end of the second pull arm past the blocking 1b device in the blocking direction.