Abstract: In the arrangement in the opening and closing of automatic elevator doors, the door coupler (20) is mounted on the car door so as to be movable in the direction of movement of the car door. The door coupler (20) is connected to a lever (21) whose first end is pivoted on the car door while its second end is pivoted on the door coupler. The power for the opening and closing of the doors is applied to the lever (21,71) via a point between its first end (21a, 71a) and second end (21b, 71b).

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: A door coupling apparatus for establishing and releasing an operative connection between an elevator car door and an elevator shaft door includes a drive unit (D, P) mounted on the car door for moving a roller double lever (1) into engagement with an entraining element (21) on the shaft door. A thrust/rotation drive unit (D) has a rotary drive (9) coupled to a lever axle (3) of the roller double lever (1) by an entraining disc (8), a coupling pin (7) and a coupling ring (6) to axially displace the roller double lever, and a guide pin (11) extending from the lever axle to engage a curved guide slot (10) to rotate the roller double lever. A passive drive unit (P) has an actuating cam (32) with a guide slot (36) formed therein for engaging an actuating roller (37) attached to the coupling pin (7) to produce the rotation and extension of the roller double lever (1). The rotatable and, in particular, retractable roller double lever (1) and the arrangement thereof above the door leaves (16.1, 16.

Abstract: This invention relates to a security device for an elevator which operates between two levels, comprised of a cabin (1) closed by a swinging door (2) which opens to the exterior, the cabin (1) moving by translational vertical motion from a lower level up to a booth (3), situated at the upper level and comprising a guard rail (4) closed by a swinging landing door (5) which is normally locked, opening toward the exterior of the cabin (1) by means of an articulation situated on the same side as the door (2) of the cabin (1), the elevator being characterized in that it is provided with means, although all of passive and entirely mechanical type, conditioning the translational vertical movement of the cabin (1) between the two levels, and the locking and unlocking of doors (2) and (5) at these levels.

Abstract: An elevator door evacuation deterrent device in combination with a moving vane elevator door coupler having a pair of coupler vanes pivotally connected by links to form a parallelogram movable between a compressed position, an expanded interlock position and a third expanded overtravel locking position when the elevator car is outside a landing zone. A top end from one of the vanes projects upwardly and abuts a locking plate on the elevator car to limit movement of the car door in the overtravel locking position when the car is outside of a landing zone.

Abstract: An elevator door system including a landing door, a car door provided on a car, a latch device for locking the landing door when the landing door is closed. The elevator door system also includes a door locking device provided on the landing door composed of a coupling plate for coupling with the car door, an unlocking plate provided in parallel with the coupling plate, and a link for moving the unlocking plate toward the coupling plate. The elevator door system further includes a first linking mechanism for linking the door locking device with the latch device, and a coupling device provided on the car door composed of a pair of coupling rollers for coupling the car door with the landing door. One of the coupling rollers pushes the unlocking plate toward the coupling plate when the car lands the landing floor. A displacement of the unlocking plate caused by being pushed toward the coupling plate by the link is applied to the latch device.

Abstract: A coupling for causing an elevator car door to engage an elevator hoistway door includes a pair of vanes, each end of each vane pivoted on a link connecting it with the other vane, the links being disposed for rotation between said two vanes on an elevator car door thereby forming a parallelogram. The vanes extend vertically between four rollers which rotate about horizontal axles disposed at the top of the hoistway door, and which provide rotationally stiff coupling. A solenoid actuator can move one vane up to cause the parallelogram to shrink, into an uncoupled position. When the actuator is disenergized, a spring causes the parallelogram to spread so that the vanes are wedged between the rollers and the two doors are coupled together.

Abstract: An elevator door hold-close device in combination with a moving vane elevator door coupler having first and second vanes pivotally connected by links to form a parallelogram pivotally movable between a first compressed uncoupled position and an expanded coupled position. A structural member is fixed to the elevator car and has a friction pad configured for retentive engagement with a friction pad on the vane assembly to hold the car door closed against manual operation when the elevator car is in flight.

Abstract: The invention concerns a door structure for an elevator which allows a service engineer to easily adjust a gap between a vibration damping engaging mechanism on a cage sliding door, the width of which varies through the opening/closing operation of the cage sliding door, and each of vibration damping members spaced predetermined distances apart from both sides of the vibration damping engaging mechanism. In the door structure, the vibration damping engaging mechanism includes movable engaging vanes spaced predetermined distances apart from the vibration damping members. The movable engaging vanes are operated such that when the sliding door is present near to the full close and open positions, the spaces are larger than those when the sliding door is present in the middle of the opening/closing stroke of the sliding door.

Abstract: A telescoping elevator door apparatus for an elevator having a car for travel in a hoistway is provided. The door apparatus comprises a fast elevator door, a slow elevator door, a first drive, and a second drive. The fast and slow doors are positioned to operate between the car and a landing in the hoistway. In a first embodiment, the first drive selectively drives the fast elevator door open or closed and the second drive selectively drives the slow elevator door open or closed.

Abstract: An entraining apparatus for the coupling, unlatching and entraining of elevator shaft doors includes an entraining parallelogram which is movable laterally and is actuated by a door drive on an elevator car. The entraining parallelogram has two vertically extending entraining members, one entraining member being fixedly connected to a slide member horizontally movable in a guide (9) and pushed into a neutral abutment setting by a compression spring during the elevator travel. An arresting parallelogram includes a movable coulisse and the fixed entraining member coupled to an upper link having a pawl lever with a pawl. Upon arrival at a stopping floor, the entraining apparatus is pushed by a pair of shaft door rollers into a centered position and the left shaft door roller moves the coulisse inwardly to engage the pawl between teeth of a comb on the slide member and arrest the entraining apparatus. During travel of the car, the compression spring pushes the entraining apparatus to the neutral position.

Abstract: An apparatus for entraining and unlatching an elevator car door and a shaft door includes an electromagnet having a movable armature attached to a first bellows mounted on a wall of the car. An entraining and unlatching cam is attached to a second bellows which is mounted on the car door. The cam has stiffened cam entry surfaces, cam surfaces and front surface. The bellows are connected by a hose as a closed pneumatic system operating with below atmospheric pressure. When the electromagnet is not actuated, an internal compression spring in the second bellows extends the cam into engagement with rollers mounted on a shaft door to splay the rollers thereby unlatching the shaft door and entraining it with the car door. At the same time, the first bellows retracts the armature to unlatch the car door. When the electromagnet is actuated, the armature latches the car door and the second bellows retracts the cam to permit the rollers to fold toward one another thereby latching the shaft door.

Abstract: A coupling for causing an elevator car door to engage an elevator hoistway door includes a pair of vanes, each end of each vane pivoted on a link connecting it with the other vane, the links being disposed for rotation between said two vanes on an elevator car door thereby forming a parallelogram. The vanes extend vertically between four rollers which rotate about horizontal axles disposed at the top of the hoistway door, and which provide rotationally stiff coupling. A solenoid actuator can move one vane up to cause the parallelogram to shrink, into an uncoupled position. When the actuator is disenergized, a spring causes the parallelogram to spread so that the vanes are wedged between the rollers and the two doors are coupled together.

Abstract: An elevator car has a car door having a arcuate cross-section and attaching to and rotating about a pivot. A hoistway door has an arcuate cross-section and is selectively coupled to a car door to open and close therewith.

Abstract: A magnetic coupling device is disposed on an elevator car door in a position to engage a magnetic vane disposed on a hoistway door which is to be opened in unison with the car door. The magnetic coupling unit may comprise either an electromagnet or a permanent magnet and has spring loaded rollers disposed above and below it so as to control the initial force of engagement between the elevator car door and the hoistway door, for smoother door opening operation.

Abstract: A horizontally stiff, but vertically yielding coupling between an elevator car door and an elevator hoistway door includes a brushless torque actuator which rotates a member (disposed on the elevator door) between a first, clearance position and a second, coupling position where it becomes wedged between the walls of a channel disposed on a hoistway door. The member may have rollers to make contact with the walls of the channel, or it may simply have sliding surfaces for contact with the channel.

Abstract: An elevator hoistway door is coupled to an elevator car door so as to be opened and closed in unison therewith by means of a pair of shoes which are mounted on the elevator door and have cammed surfaces that allow the shoes to be spread so as to be wedged within the walls of a channel that is mounted on the hoistway door. The wedging action is caused by a solenoid actuator and the shoes are returned by means of a spring to a rest position in which they have adequate clearance within channels of all of the hoistway doors which the elevator may pass. Advance door opening and releveling is accommodated by means of rollers or sliding contact.

Abstract: A hoistway and a car door are coupled by means of a vane attached to one of the hoistway door and the car door, and a mating channel mounted to the other of the hoistway or car door. A mechanism allows the channel to extend from its mounting towards the vane if the car is in preparing to load or unload passengers. The vane enters the channel to couple the car and hoistway doors for motion together. If the car is in motion the mechanism causes the channel to move towards its mounting and away from the vane so that each channel does not interfere with any vanes on any floor that is passed while in the car is in motion. The channel allows the vane attached thereto, to slightly ascend and descend while still coupled to the channel. The mounting has a spring that bends to move the channel away from the vane and unbends to move the channel towards the vane. The channel releases a lock attached to a hoistway door as the channel moves away from its mounting to allow the hoistway door to open as the car doors open.

Abstract: An elevator drive, which moves an arcuate car door attaching to a support that rotates about an axis, has a motor having an output, an arm attached to the output, and a linkage having a first coupling allowing compound motion attached to the arm and a second coupling allowing compound motion attached to the support, the door moving as the arm rotates in response to motion of the output.