Kone Elevator Gmbh

Elevator Gmbh

Hugo Winkler

An arrester device, e.g. for an elevator cage or counterweight, has a wedge housing, an active wedge acting on one side of an elevator guide and activated by a separate transmission member, such as a rope, and a counterwedge acting on the elevator guide from the opposite side. The movements of the wedge and the counter wedge are directed to pass along inclined guide surfaces, the distance between the top margins of the guide surfaces being equal to or larger than the distance between their lower margins. The angle of inclination of the guide surfaces equals the wedge angles of the wedge and the counterwedge, respectively. Furthermore, the wedge housing comprises a force member, such as a spring, which exerts on the counterwedge a force substantially parallel to the respective guide surface.

Arrester device for elevators

The present invention concerns a speed limiter for lifts provided with catch device. The tension force acting on the lifting rope of an elevator is greatly variable. A detrimental feature herein is the jerky stopping of the rope sheave, resulting in looping of the rope and delay of the onset of braking effect. The invention serves the object to eliminate these drawbacks and to provide an improved speed limiter. This is accomplished, as taught by the invention, starting from a speed limiter for lifts provided with catch device in which on a stationary axle is rotatably carried a rope sheave that can be driven by a rope connected with the catch device in that on the axle is mounted a pre-set brake for a braking element, such as a disk or a drum, rotatable with reference to the axle against the braking effect, and that one the rope sheave is rotatably carried at least one eccentric cam turnable by a centrifugal weight against the force of a return spring, this cam coming into engagement with the rotatable braking element when a specified triggering speed of the rope sheave is exceeded.

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Vienna, Austria

Hugo Winkler