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US 5,174,417 AGranted
Device and method for the actuating and unlatching of the shaft doors of an elevator
AssigneeInventio AG
InventorRichard H. Pilsbury
Life of this patent
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AssigneeInventio AG
InventorRichard H. Pilsbury
Estimating the term…
A device for opening and closing a shaft door of an elevator and a method of use thereof. The device includes a first coupling member adapted to be positioned on the shaft door and a second coupling member being adapted to be positioned on a car door on an elevator car. The first coupling member and the second coupling member cooperate with each other to couple the shaft door to the car door for movement therewith when the car is at a landing, the first coupling member cooperating with the second coupling member without contact between the first coupling member and the second coupling member. By means of the foregoing arrangement, noises and vibrations, which arise from the opening and unlatching of a shaft door entrained by a driven car door, can largely be avoided. The first and second coupling member are preferably magnets, which are arranged in such a manner that a north pole of the first coupling member lies opposite a north pole of the second coupling member and a south pole of the first coupling member lies opposite a south pole of the second coupling member. The like poles repel each other and are thereby separated by an air gap. A further magnet, one pole of which in the direction of movement of the doors lies opposite with an air gap to a like pole of the second coupling member, is provided on a latching member of the shaft door. When a car stops at a landing, the shaft door is first unlatched without contact and then is entrained by the car door without contact upon the opening of the car door due to the repelling forces of the magnets.
Device for actuating and unlatching a shaft door of an elevator, said device including a first coupling member positioned on said shaft door and a second coupling member, which is positioned at the car door of an elevator car, said second coupling member being adapted to be brought into cooperation with said first coupling member in the region of a landing, wherein a latching member is provided on said shaft door so that when the car stops at a landing, said latching member is in effective connection with said second coupling member in such a manner that the shaft door is unlatched and can be opened, said device comprising:
Device for opening and closing a shaft door of an elevator, said device including a first coupling member adapted to be positioned on the shaft door, a second coupling member being adapted to be positioned on a car door of an elevator car, said first coupling member and said second coupling member cooperating with each other to couple the shaft door to the car door for movement therewith when the car is at a landing, said first coupling member cooperating with said second coupling member without contact between said first coupling member and said second coupling member, and further comprising a latching member for latching said shaft door, said latching member including a further coupling member for cooperating with said second coupling member, without contact between said further coupling member and said second coupling member, for unlatching said shaft door.
Device for opening and closing a shaft door of an elevator, said device including a first coupling member adapted to be positioned on the shaft door, a second coupling member being adapted to be positioned on a car door of an elevator car, said first coupling member and said second coupling member cooperating with each other to couple the shaft door to the car door for movement therewith when the car is at a landing, said first coupling member cooperating with said second coupling member without contact between said first coupling member and said second coupling member, wherein said first coupling member comprises a first magnet having a north pole and a south pole, said second coupling member comprising at least one magnet having a north pole and a south pole, said first magnet being positioned so that at least one of said north pole and said south pole is adjacent at least one of said north pole and said south pole, respectively, of said second magnet, when the car is at a landing.
Method of opening and closing a shaft door of an elevator, the elevator including a car having a car door, the method comprising the steps of:
Device for opening and closing a shaft door of an elevator, said device including a first coupling member adapted to be positioned on the shaft door, a second coupling member being adapted to be positioned on a car door of an elevator car, said second coupling member comprising two electromagnets, said first coupling member being a U-shaped magnet having first and second legs forming a north pole and a south pole, respectively, said U-shaped magnet being positioned between said two electromagnets when the car is at a landing, wherein said first coupling member and said second coupling member cooperate with each other to couple the shaft door to the car door for movement therewith when the car is at the landing, said first coupling member cooperating with said second coupling member without contact between said first coupling member and said second coupling member.
Method of opening and closing a shaft door of an elevator, the elevator including a car having a car door, the method comprising the steps of:
Dependencies are inferred from the claim text.