Patent ID: 8567568
Filing Date: 2013-10-29
Classification: B66B

Abstract:
1. An elevator arrangement comprising: a hoisting machine; a traction sheave connected to the hoisting machine; an elevator car configured to travel along guide rails and suspended on hoisting roping including a plurality of hoisting ropes; a rope force compensating element to compensate for rope forces of the elevator arrangement, the rope force compensating element including at least a first and a second compensation pulley; wherein a first portion of the plurality of hoisting ropes that engage the rope force compensating element pass around the first compensation pulley, and a second portion of the plurality of hoisting ropes that engage the rope force compensating element pass around the second compensation pulley; wherein the first portion of the plurality of hoisting ropes passing around the first compensation pulley are longer than the second portion of the plurality of hoisting ropes passing around the second compensation pulley; and wherein the rope force compensating element is configured to move vertically within an elevator shaft.