| 摘要 |
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.
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