A landing door locking mechanism of an elevator system includes a body housing key-engagement elements and having a first end and a second end, the key-engagement elements located at the first end and a keyway structure, wherein in a first position the first end of the body is exposed such that a key may be inserted into a keyway of the keyway structure and interact with the key-engagement elements. A biasing mechanism is configured to bias a moveable portion of the body toward a second position, wherein in the second position a key cannot interact with the key-engagement elements and a solenoid is configured to apply a force on the moveable portion of the body when the solenoid is energized such that the moveable portion of the body is moved from the second position to the first position.

A landing door locking mechanism of an elevator system includes a body housing key-engagement elements and having a first end and a second end, the key-engagement elements located at the first end and a keyway structure, wherein in a first position the first end of the body is exposed such that a key may be inserted into a keyway of the keyway structure and interact with the key-engagement elements. A biasing mechanism is configured to bias a moveable portion of the body toward a second position, wherein in the second position a key cannot interact with the key-engagement elements and a solenoid is configured to apply a force on the moveable portion of the body when the solenoid is energized such that the moveable portion of the body is moved from the second position to the first position.

An elevator system is provided, the system includes an elevator car (100, 200, 300) having at least one elevator car door (202), a deterrent system configured to prevent the at least one elevator car door (202) from opening when the elevator car (100, 200, 300) is not in an unlocking zone (218, 318), and a disabling system configured to disable the deterrent system such that the at least one elevator car door (202) may be opened outside of the unlocking zone (218, 318).

An elevator system is provided, the system includes an elevator car (100, 200, 300) having at least one elevator car door (202), a deterrent system configured to prevent the at least one elevator car door (202) from opening when the elevator car (100, 200, 300) is not in an unlocking zone (218, 318), and a disabling system configured to disable the deterrent system such that the at least one elevator car door (202) may be opened outside of the unlocking zone (218, 318).

A door system for an elevator installation having an elevator car, the door system including a pivotable first car door leaf mounted at a car door opening and a pivotable first shaft door leaf mounted at a shaft door opening of the elevator installation. At least a part of the shaft door opening is closed by the first shaft door leaf in a closed position thereof and a shaft door plane is formed along the shaft door leaf. At least a part of the car door opening is closed by the first car door leaf in a closed position thereof and a car door plane is formed along the car door leaf. The car door leaf, in an open position thereof, extends through the shaft door plane, or the shaft door leaf, in an open position thereof, extends through the car door plane.

A door system for an elevator installation having an elevator car, the door system including a pivotable first car door leaf mounted at a car door opening and a pivotable first shaft door leaf mounted at a shaft door opening of the elevator installation. At least a part of the shaft door opening is closed by the first shaft door leaf in a closed position thereof and a shaft door plane is formed along the shaft door leaf. At least a part of the car door opening is closed by the first car door leaf in a closed position thereof and a car door plane is formed along the car door leaf. The car door leaf, in an open position thereof, extends through the shaft door plane, or the shaft door leaf, in an open position thereof, extends through the car door plane.

A pit switch module of elevator landing door for switching a mode of elevator between an inspection mode and a normal mode comprises a pit switch arranged that ON/OFF operation is configured to be done by an operator at a landing at the state when the elevator landing door has been closed such that the mode of elevator is switched before the operator enters a hoistway or after the operator leaves the hoistway.

An unlocking system including an elevator system with a lock having an unlocking mechanism and a keyway, the lock configured to secure a door of the elevator system and a detection device configured proximal to the keyway, the detection device configured to detect the presence of an authorization device configured to operate with the detection device that is located in proximity to the unlocking mechanism. If the detection device detects a key without an authorization device, the unlocking mechanism is configured to be disabled and may not be unlocked. If the detection device detects a key having an authorization device, the unlocking mechanism is enabled and the lock may be unlocked.

An unlocking system including an elevator system with a lock having an unlocking mechanism and a keyway, the lock configured to secure a door of the elevator system and a detection device configured proximal to the keyway, the detection device configured to detect the presence of an authorization device configured to operate with the detection device that is located in proximity to the unlocking mechanism. If the detection device detects a key without an authorization device, the unlocking mechanism is configured to be disabled and may not be unlocked. If the detection device detects a key having an authorization device, the unlocking mechanism is enabled and the lock may be unlocked.

An elevator door interlock device, an elevator door interlock operation method and an elevator system. The elevator door interlock device is arranged on an elevator car and has a first state in which to operate a landing door lock at a current arrival position of the elevator car to open or close a landing door, and a second state in which it makes no contact with the landing door lock, and the elevator door interlock device is configured to be in the first state when the elevator car travels in a vertical direction, and to be in the second state when the elevator car travels in a horizontal direction and to switch to the first state to open or close the landing door after the elevator car reaches a landing door position, and to return to the second state when the elevator car continues to travel in the horizontal direction.