Linear induction motor for driving elevator car doors

摘要

A linear induction motor for opening and closing elevator car doors (12) in an elevator system includes a motor primary (16) fixedly attached to a door hanger (14) and a motor secondary (18) flexibly mounted to a header bracket (24) of the elevator car. A pair of swivel joints (76) secure the ends of the motor secondary to the header bracket. The swivel joints compensate for misalignment and twisting of the elevator car doors by allowing multi-dimensional movement of the motor secondary relative to the header bracket.