Patent ID: 8020670
Filing Date: 2011-09-20
Classification: B66B

Abstract:
1. An arrangement for equalizing rope force of an elevator, comprising: a hoisting machine; a set of hoisting ropes; a traction sheave; an elevator car; elevator car guide rails; a rope force compensating device; at least one first diverting pulley above the elevator car; and at least one second diverting pulley below the elevator car; wherein the hoisting machine engages the set of hoisting ropes via the traction sheave, wherein the elevator car is at least partially supported by the set of hoisting ropes, the at least one first diverting pulley, and the at least one second diverting pulley to move the elevator car, wherein the elevator car moves along the elevator car guide rails, wherein the rope force compensating device comprises: wherein the first tensioning device includes a first axis of rotation, wherein the second tensioning device includes a second axis of rotation, wherein the first axis of rotation is spaced apart from the second axis of rotation, wherein the first and second tensioning devices are interconnected via a transmission device that transmits rotary motion, wherein the first tensioning device includes a first regulating element connected to a first transmission pulley, wherein a first end of the set of hoisting ropes is secured to the first regulating element, wherein the second tensioning device includes a second regulating element connected to a second transmission pulley, and wherein a second end of the set of hoisting ropes is secured to the second regulating element.