Elevator
AssigneeInventio AG
InventorJules Christen
Life of this patent
Estimating the term…
Abstract
A method enables emergency unlocking of a car door of an elevator having a car movable within a shaft to a floor. The car door has an electrically activatable lock and the floor has a shaft door with an electrically activatable door lock. The car door lock has a first latch for locking a first car door leaf and an emergency unlocking mechanism. The shaft door lock can be accessed from the floor. An actuator is attached to the shaft door. The method includes the steps: the shaft door is unlocked from the floor by the shaft door lock being manually actuated; actuation of the shaft door lock moves the actuator from a first position to a second position; in the second position, the actuator actuates the emergency unlocking mechanism; and actuation of the emergency unlocking mechanism unlocks the car door lock to unlock the first car door leaf.
Claims15
An elevator including an elevator car movable in an elevator shaft to a floor, the car having a car door with at least a first car door leaf, the elevator shaft having a shaft door with at least a first shaft door leaf at the floor, the car door having an electrically activatable car door lock and the shaft door having an electrically activatable shaft door lock, the car door lock having a first latch locking the first car door leaf, the shaft door having a lock locking the shaft door, the shaft door lock being accessible from the floor and manually actuable for unlocking the shaft door lock from the floor, the elevator comprising:
- the car door lock having an emergency unlocking mechanism operatively connected to the first latch of the car door lock;
- an actuator attached to the shaft door and being movable from a first position to a second position by moving a key in the shaft door lock, the actuator actuating the emergency unlocking mechanism in the second position to bring the first latch into an unlocked position thereby unlocking the car door lock and the first car door leaf;
- wherein the shaft door and the car door are spaced apart a predetermined distance from one another in a region of a door coupling, the door coupling having a shaft door coupling that engages with a car door coupling such that the first car door leaf and the first shaft door leaf move collectively;
- wherein the first shaft door leaf is locked by a hook of the first shaft door leaf engaging a first shaft door latch;
- wherein the car door lock is driven by an electric car door lock drive to unlock the first car door leaf;
- wherein the shaft door lock is driven by an electric shaft door lock drive to unlock the first shaft door leaf;
- wherein the car door lock is attached to a car door lintel and the shaft door lock is attached to a shaft door lintel;
- and
- the shaft door lock and the actuator are arranged in the shaft door lintel such that the actuator in the first position is spaced at least the predetermined distance from a clearance profile of the car.
Dependencies are inferred from the claim text.