B66B13/185

Elevator door safety lock system
09695015 · 2017-07-04 ·

An elevator door safety lock system ensures that an elevator door remains securely closed when it is not aligned with one of a plurality of floor openings. The safety lock system includes a vertical position sensor which includes an RFID reader disposed on the elevator and a plurality of RFID tags each disposed in the shaft at a different floor opening. The reader identifies when it is aligned or non-aligned with any tag indicating when the elevator is aligned and non-aligned with a floor opening. A control unit communicates with the safety lock system and an elevator controller. A door monitor indicates if the elevator door is open or closed and an engagement sensor detects whether the door lock is engaged.

Elevator car door detection apparatus
12234124 · 2025-02-25 · ·

Car doors hanging down via door hangers are disposed on a door rail that is disposed on a vertically-oriented frame disposed above an entrance of a car and extends along a width direction of the entrance of the car. One of a magnetic proximity switch and a target for detecting that the car doors are fully open and fully closed is disposed on a horizontal part extending from an upper end of the frame toward the entrance of the car. The remaining one of the magnetic proximity switch and the target is disposed on an extending part extending from each of the door hangers so as to be opposed in a vertical direction to the one of the magnetic proximity switch and the target for detection.

METHOD AND APPARATUS FOR DETECTING AUTOMATIC CLOSING FUNCTION OF A FLOOR DOOR
20250145415 · 2025-05-08 ·

A method and device for detecting an automatic closing function of a landing door, an elevator system and a non-transitory computer-readable storage medium. In the method for detecting the automatic closing function of the landing door, when a car of an elevator system stops at one of a plurality of floors, a car door of the car and a landing door associated with one of the plurality of floors are opened. Subsequently, during a closing process of the landing door, a drive mechanism of the elevator system is caused to apply a balanced driving force to the car door of the car. The balanced driving force corresponds to resistance to which the car door is subjected. Next, it is determined whether the associated landing door can be closed normally within a preset time period since the start of applying the balanced driving force to the car door.

Elevator and door lock therefor and method for unlocking thereof
12515919 · 2026-01-06 ·

A lock for an elevator door, the lock being a wireless magnetic field induction current controllable lock.