Abstract: A door coupler provided with coupling elements actuated by means of a linkage so as to engage a counter element provided on the landing door and a locking hook that has a closed position and a released position. The release of the locking hook from the closed position to the released position is allowed when the coupling element meets the counter element. The locking hook and the coupling elements are disposed at a distance from each other.

Abstract: Elevator doors have operating bars that are pivoted on a car door and that serve to actuate shaft-door actuating rollers that operate shaft doors. These doors are operated by an apparatus having an actuating device that changes a spacing between the operating bars and that has an actuating lever coupled with a door actuator. This actuating lever is coupled with a first link pivoted on the operating bars. The actuating lever and the first link are pivotal through a predetermined angle. A latch for the car doors is provided with a tension element connected between one operating bar and the actuating lever.

Abstract: The invention relates to a device for actuating and locking elevator doors comprising driving runners (14, 15) which are mounted on a car door (104a, 104b) and actuate shaft door drive rollers (109, 110) used for actuating shaft doors (111). The inventive device comprises an actuator which modifies the distance (d0, d1, d2) between the driving runners (14, 15) and is provided with an actuating lever (1) that is connected to a door drive unit. Said actuating lever (1) is connected to a first swiveling lever (10) so as to cooperate therewith. The driving runners (14, 15) are hingably connected to said swiveling lever (10). A locking device is configured such that it locks the car door (104a, 104b). The actuating lever (1) and the first swiveling lever (10) are pivotable towards each other by a predefined angle. The locking device is connected to a traction element (20) which is hingably connected to one driving runner (15) and the actuating lever (1).

Abstract: A door coupler provided with coupling elements actuated by means of a linkage so as to engage a counter element provided on the landing door and a locking hook that has a closed position and a released position. The release of the locking hook from the closed position to the released position is allowed when the coupling element meets the counter element. The locking hook and the coupling elements are disposed at a distance from each other.

Abstract: In the procedure for closing an elevator landing door (3,4), the landing door is coupled with the car door (1,2) by a door coupler, and the car door is moved by an actuator provided in conjunction with the elevator car. During the initial phase of the closing movement, the car door and landing door are moved at the same speed, but towards the end of the closing movement the landing door (3,4) is caused to move faster than the car door (1,2). Based on control by the car door movement, the coupling elements (5,6) of the door coupler are moved in the direction of the car door movement.

Abstract: In the procedure for closing an elevator landing door (3,4), the landing door is coupled with the car door (1,2) by a door coupler, and the car door is moved by an actuator provided in conjunction with the elevator car. During the initial phase of the closing movement, the car door and landing door are moved at the same speed, but towards the end of the closing movement the landing door (3,4) is caused to move faster than the car door (1,2). Based on control by the car door movement, the coupling elements (5,6) of the door coupler are moved in the direction of the car door movement.