A DOOR LOCKING DEVICE FOR ELEVATOR

摘要

A door locking device for an elevator is provided to simplify a structure thereof and maximize utility of a driving motor by using the driving motor for operating the door locking device and right and left doors of the elevator. A door locking device for an elevator includes a driving pulley(22), a driven pulley(23), a belt(24), a locking mass(50), and a locking piece(52). The driving pulley is mounted on an output shaft of a deceleration box(21-1) of a driving motor(21). The driving motor is mounted on a door base of a door of the elevator. The driven pulley is mounted on the door base for controlling tension of the belt. The belt is hung on the driving and driven pulleys. The locking mass is integrally mounted on the belt by a mounting piece and locks and unlocks the locking piece during reverse rotation of the belt. The locking piece is mounted on the door base.