An elevator car with a retiring cam for releasing a landing door lock, a lock for maintaining a car door locked, the retiring cam being constructed and arranged to unlock the car door lock when deployed to unlock a landing door.

An elevator car with a retiring cam for releasing a landing door lock, a lock for maintaining a car door locked, the retiring cam being constructed and arranged to unlock the car door lock when deployed to unlock a landing door.

Elevator landing door lock assemblies and elevator landing doors having a lock with a keyway accessible from a landing of an elevator system, the lock operable to lock and unlock a landing door and a disengageable link operably connected to the lock and configured to prevent unlocking of the landing door when the disengageable link is not engaged. When an elevator car is aligned with the landing door, the disengageble link is engaged and completed such that the lock is operable to unlock and open the landing door, and, when an elevator car is not aligned with the landing door, the lock is not operable.

Elevator landing door lock assemblies and elevator landing doors having a lock with a keyway accessible from a landing of an elevator system, the lock operable to lock and unlock a landing door and a disengageable link operably connected to the lock and configured to prevent unlocking of the landing door when the disengageable link is not engaged. When an elevator car is aligned with the landing door, the disengageble link is engaged and completed such that the lock is operable to unlock and open the landing door, and, when an elevator car is not aligned with the landing door, the lock is not operable.

An elevator car door interlock including a locking assembly, cable assembly, switch assembly, and top mounting assembly. The elevator car door interlock works in combination with flags installed in an elevator's hoistway. A flag is installed in the areas where it is permitted to open the elevator doors. The locking assembly includes an arm that engages the flag. The flag then prevents the arm from reaching its maximum tilt and keeps it in the substantially vertical position. This causes the hook in the locking assembly to remain in the lowered position. The hook in this position allows the cable to freely travel when the elevator doors are attempted to be open. If the elevator is in a locking zone, then there is no flag present and as the door is attempted to be open, a weighted member attached to the bottom of the cable will begin to rise. However, because no flag is present to hold the arm back and subsequently, keep the hook lowered, an elongated spring biases the hook upwards until it engages a locking pin mounted to the weighted member. This prevent the cable from traveling freely throughout the shaft, thereby keeping the elevator doors locked.

An elevator car door interlock including a locking assembly, cable assembly, switch assembly, and top mounting assembly. The elevator car door interlock works in combination with flags installed in an elevator's hoistway. A flag is installed in the areas where it is permitted to open the elevator doors. The locking assembly includes an arm that engages the flag. The flag then prevents the arm from reaching its maximum tilt and keeps it in the substantially vertical position. This causes the hook in the locking assembly to remain in the lowered position. The hook in this position allows the cable to freely travel when the elevator doors are attempted to be open. If the elevator is in a locking zone, then there is no flag present and as the door is attempted to be open, a weighted member attached to the bottom of the cable will begin to rise. However, because no flag is present to hold the arm back and subsequently, keep the hook lowered, an elongated spring biases the hook upwards until it engages a locking pin mounted to the weighted member. This prevent the cable from traveling freely throughout the shaft, thereby keeping the elevator doors locked.

A method for positioning counter entraining means which are provided on a shaft door of a lift installation, with respect to entraining means provided on a lift cage door of a lift cage of the lift installation, wherein the shaft door and the lift cage door can be coupled to each other by the entraining means acting upon the counter entraining means. The method comprises moving the lift cage into a floor position, opening the lift cage door, fixing the shaft door in the closed state, providing the counter entraining means, which are provided on the shaft door, with clearance with respect to the shaft doors, closing the lift cage door, actuating the entraining means, which are formed on the lift cage door, to act upon the counter entraining means, wherein the counter entraining means are displaced into an optimized position with respect to the entraining means on the shaft door, ending the action of the entraining means on the counter entraining means, re-opening the lift cage door while keeping the shaft door closed, and securing the counter entraining means to the shaft door in the optimized position set by the action of the entraining means.

A method for positioning counter entraining means which are provided on a shaft door of a lift installation, with respect to entraining means provided on a lift cage door of a lift cage of the lift installation, wherein the shaft door and the lift cage door can be coupled to each other by the entraining means acting upon the counter entraining means. The method comprises moving the lift cage into a floor position, opening the lift cage door, fixing the shaft door in the closed state, providing the counter entraining means, which are provided on the shaft door, with clearance with respect to the shaft doors, closing the lift cage door, actuating the entraining means, which are formed on the lift cage door, to act upon the counter entraining means, wherein the counter entraining means are displaced into an optimized position with respect to the entraining means on the shaft door, ending the action of the entraining means on the counter entraining means, re-opening the lift cage door while keeping the shaft door closed, and securing the counter entraining means to the shaft door in the optimized position set by the action of the entraining means.

A device for synchronously actuating and locking elevator doors, which are situated essentially one behind the other in the passage directionsuch as a car door and a shaft door; the device includes entraining skids that are associated with a first driven door and whose spacing relative to one another can be changed in order to be able to couple the first door to the second door and move them together, characterized in that at least one of the entraining skids is supported in mobile fashion relative to the component, which holds it directly and is preferably embodied in the form of an entraining skid support, and toward the end of the closing movement, is secured so that it disengages from the second door, particularly by coming into contact with a stationary actuating element, which forcibly imparts a lifting movement to the at least one entraining skid.

A device for synchronously actuating and locking elevator doors, which are situated essentially one behind the other in the passage directionsuch as a car door and a shaft door; the device includes entraining skids that are associated with a first driven door and whose spacing relative to one another can be changed in order to be able to couple the first door to the second door and move them together, characterized in that at least one of the entraining skids is supported in mobile fashion relative to the component, which holds it directly and is preferably embodied in the form of an entraining skid support, and toward the end of the closing movement, is secured so that it disengages from the second door, particularly by coming into contact with a stationary actuating element, which forcibly imparts a lifting movement to the at least one entraining skid.