Elevator and door lock therefor and method for unlocking thereof
OwnerIsrael Tietelinventor
Life of this patent
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Abstract
A lock for an elevator door, the lock being a wireless magnetic field induction current controllable lock.
Claims15
An electronic unlock system for a plurality of elevator-access doors (26A, 26B, 26C), with at least one elevator-access door of the plurality of elevator doors being disposed at a floor (52A, 52B, 52C) of a multi-level building, said at least one elevator-access door disposed immediately adjacent to and opening upon a vertical elevator shaft;
- said unlock system comprising:
- an electro-magnet (24) disposed at said door for unlocking said lock;
- and
- an induction coil (22A, 22B, 22C) of said at least one elevator-access door, configured for wirelessly receiving magnetic induction from an induction coil (23) of an elevator car;
- of the elevator for energizing said electro-magnet through an electric wire;
- wherein, in a first state, the unlock system is locked and prevents the at least one elevator-access door from opening;
- wherein, in a second state, the unlock system is energized to be unlocked, which can occur only when the induction coil (23) of the elevator car is aligned with and immediately adjacent to the induction coil of the at least one elevator-access door, which alignment and adjacency of the respective induction coils corresponds to an opening of the elevator car being fully aligned with the at least one elevator-access door such that a user can safely transit between an interior of the elevator car and a selected floor through the at least one elevator-access door.
An elevator system comprising:
- a lock comprised in each door of a plurality of elevator-access doors (26A, 26B, 26C), each disposed on a vertically-different floor level of a multi-floor structure, each lock comprising an induction coil (22A, 22B, 22C), which lock is in a default locked state and is configured for wirelessly receiving magnetic induction to energize the lock for unlocking said lock;
- and
- an elevator car configured to move vertically between the floor levels, with an induction coil (23) comprised in the elevator car, where the induction coil (23) of the elevator car wirelessly provides induction to said induction coil (22A, 22B, 22C) of only one at a time of said doors to unlock a selected door only when the elevator car is aligned with and facing the selected elevator-access door, with the elevator car's induction coil (23) facing and aligned with the selected elevator-access door's induction coil (22A, 22B, 22C).
A method for safe-only unlocking a lock of an elevator-access door that is openable to an elevator shaft, the method comprising:
- providing electric power to wirelessly energize an induction coil of said lock to move the lock from a locked state to an unlocked state, only when an induction coil of an elevator car configured for vertical travel in the elevator shaft is disposed near enough to said elevator-access door for the wireless energization to occur, and where being near enough consists of a position of the elevator car relative to the elevator-access door such that the door, when unlocked, will open into the elevator car and not into the elevator shaft, nor with misalignment of a floor of the elevator car relative to a floor associated with the door.
An elevator unlocking system for electric elevator-access door locks configured to unlock an elevator-access door on a plurality of floors of a multi-floor structure, the system comprising:
- an induction coil disposed at each floor, each of which induction coil is wired electrically to a corresponding electric elevator-access door lock;
- and
- an elevator car's induction coil configured to be disposed on an elevator car for transiting between the floors, where the elevator car's induction coil is energized upon activation of a controller to induce wirelessly electric power in a selected one of the induction coils disposed at a selected one of the floors.
Dependencies are inferred from the claim text.