Elevator rope arrangement
AssigneeKone Corporation
InventorsEsko Aulanko, Simo Mäkimattila
Life of this patent
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Abstract
Elevator rope arrangement in which the elevator car and counterweight, travelling along guide rails in an elevator shaft, are supported by suspension ropes, which are attached to the top part of the elevator car and passed via at least one diverting pulley to the counterweight. Separate hoisting ropes are attached to the lower part of the elevator car and passed to lower part of the counterweight via at least one diverting pulley. The hoisting rope is a substantially thin rope made of synthetic fiber and having a sheath of plastic material.
Claims20
An elevator rope arrangement for an elevator having an elevator car and a counterweight, the elevator car being movable along a guide rail in an elevator shaft, a drive machine with a traction sheave being provided to drive the elevator, the arrangement comprising:
- suspension ropes attached to a top part of the elevator car and passed via at least one diverting pulley to the counterweight;
- at least one hoisting rope attached to the elevator car and passed from the elevator car to the counterweight via the traction sheave of the drive machine and via at least one diverting pulley, the hoisting rope being at least one substantially thin rope made of synthetic fibers, the at least one hoisting rope being covered with a sheath, the at least one hoisting rope having a flat shape in cross section;
- and
- a rope tensioning device arranged in a lower part of the elevator shaft for tensioning the at least one hoisting rope, the rope tensioning device including a spring for keeping the at least one hoisting rope in tension.
Dependencies are inferred from the claim text.