Aufzug mit positionsabhänglicher Bremskraft

Ascenseur avec force de freinage variable selon la position

Elevator with positon dependent braking force

Abstract

The invention relates to an elevator having a car (62), arranged to be moved along at least one guide rail (64, 66) in an elevator guide way, the car having a brake for braking the car movement by gripping the guide rail, the brake having gripping means (68) for gripping the guide rail and exerting a friction force thereon, and adjusting means (70, 72, 74, 76, 78, 80, 82, 84) for adjusting the gripping means with respect to its friction force exerted on the guide rails in case of braking. The adjusting means are configured to adjust the gripping means depending on the car position in the elevator guide way. The invention allows emergency braking particularly in higher and high rise elevators with a stopping distance which is mostly unaffected by the position of the elevator car in the guide way.

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Patent Citations (4)

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    CA-2032214-A1June 15, 1991Helge Korhonen, Kone Elevator GmbhAppareil de securite pour elevateur avec frein bi-directionnel pour une situation d'exces de vitesse
    US-2010187047-A1July 29, 2010Nicolas Gremaud, Steffen GrundmannSpecial operating mode for stopping an elevator car
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