A method of unlocking an elevator car door or an elevator car is provided including operating a door operator. A link arm of a car door interlock operably coupled to the door operator is rotated. If the elevator car is positioned within a landing door zone, an engagement link coupled to the link arm is configured to pivot relative to the link arm to disengage from an electrical contact. If the elevator car is not positioned within a landing door zone, the engagement link does not pivot relative to the link arm and remains engaged with the electrical contact.

A door interlock of the present invention includes an engaged part and an engaging part configured to lock a door in a door closed state. The engaging part includes: a locking member; a mounting member mounted to the locking member; a sim member inserted into a slit; a first fixing member; and a second fixing member. The first fixing member is configured to be inserted into a first lock through hole, a first sim through hole, and a mount through hole, thereby fixing the mounting member and the sim member to the locking member. The second fixing member is configured to be inserted into a second lock through hole and a second sim through hole, thereby fixing the sim member to the locking member.

A door interlock of the present invention includes an engaged part and an engaging part configured to lock a door in a door closed state. The engaging part includes: a locking member; a mounting member mounted to the locking member; a sim member inserted into a slit; a first fixing member; and a second fixing member. The first fixing member is configured to be inserted into a first lock through hole, a first sim through hole, and a mount through hole, thereby fixing the mounting member and the sim member to the locking member. The second fixing member is configured to be inserted into a second lock through hole and a second sim through hole, thereby fixing the sim member to the locking member.

A system for controlling service access associated with an elevator car includes a divider configured to divide an elevator shaft into a plurality of service access zones; and a controller configured to control a locking state of at least one service access from inside the elevator car to the elevator shaft based on a service access zone of the plurality of service access zones at which the elevator car is located.

The disclosure provides an apparatus and mechanism for and elevator safety mechanism. The safety mechanism can include a lock bar, a beak assembly, a detector assembly, and a linkage rod providing communication between the beak assembly and the detector assembly. The beak of the beak assembly can engage a catch in the lock bar when the safety mechanism is in a closed position, preventing the doors of the elevator from further opening.

The disclosure provides an apparatus and mechanism for and elevator safety mechanism. The safety mechanism can include a lock bar, a beak assembly, a detector assembly, and a linkage rod providing communication between the beak assembly and the detector assembly. The beak of the beak assembly can engage a catch in the lock bar when the safety mechanism is in a closed position, preventing the doors of the elevator from further opening.

A mechanical hoistway access control device for an elevator landing door includes a first and a second base plates mounted on the hoistway side of a landing door panel and arranged in parallel with one another, a slider slidably arranged between the first and second base plates and configured to move in conjunction with a car door and configured to protrude out from a door closing side end of the landing door by a first elastic member to take an extended position when the landing door is opened with no elevator car at the landing, and a latch attached to the landing door and configured to engage with the slider to keep the slider in the extended position once the slider protrudes out from the door closing side end of the landing door.

A mechanical hoistway access control device for an elevator landing door includes a first and a second base plates mounted on the hoistway side of a landing door panel and arranged in parallel with one another, a slider slidably arranged between the first and second base plates and configured to move in conjunction with a car door and configured to protrude out from a door closing side end of the landing door by a first elastic member to take an extended position when the landing door is opened with no elevator car at the landing, and a latch attached to the landing door and configured to engage with the slider to keep the slider in the extended position once the slider protrudes out from the door closing side end of the landing door.

An elevator car door interlock for unlocking an elevator car door of an elevator car is provided including a lock member (54) including an electrical contact (72). A rotatable link arm (58) has a sensing mechanism (52, 62) configured to detect a position of the elevator car door. An engagement latch (64) is pivotally mounted to the rotatable link arm. The engagement latch is engaged with the electrical contact when the elevator car door is locked. The engagement latch is rotated out of engagement with the electrical contact when the elevator car door is unlocked.

An elevator car door interlock for unlocking an elevator car door of an elevator car is provided including a lock member (54) including an electrical contact (72). A rotatable link arm (58) has a sensing mechanism (52, 62) configured to detect a position of the elevator car door. An engagement latch (64) is pivotally mounted to the rotatable link arm. The engagement latch is engaged with the electrical contact when the elevator car door is locked. The engagement latch is rotated out of engagement with the electrical contact when the elevator car door is unlocked.