POWER OPERATOR FOR SLIDING PLUG DOORS

摘要

A powered operator for sliding plug doors mounted on a movable carriage mounted overhead of an opening in the side wall of a transit vehicle, such doors including a single electric prime mover driving dual helical drives, each operating a door hanger attached to a single door panel over and away from the opening and for moving the carriage out of such side wall pocket. Door hangers used provide controlled deflection of door panels when in a fully open position. Drive linkages lock door panels when in a plugged position. The operator also provides guidance for the lower edge of the door panels during plugging and unplugging operations. Control elements and a central controller provides sequential door panel movement into and out of a pocket in the transit car side wall.