Patent ID: 6471012
Filing Date: 2002-10-29
Classification: B66B

Abstract:
A traction sheave elevator, comprising:an elevator car adapted to move along a first guide track in an elevator shaft; a counterweight adapted to move along a second guide track in the elevator shaft; a rope, having first and second ends, wherein both ends are attached to a fixed overhead structure in upper part of the elevator shaft, the elevator car and the counterweight being carried by said rope; a plurality of rope pulleys adapted to receive the rope and connected to the counterweight, a fixed overhead structure in the elevator shaft, and the elevator car, wherein the plurality of rope pulleys comprises: a traction sheave; a first pair of car rope pulleys mounted on the elevator car at a first distance from each other; a second pair of car rope pulleys mounted on the elevator car at a second distance from each other; and an auxiliary rope pulley connected to the fixed overhead structure, wherein a rope is passed from one of the car rope pulleys of the first pair of car rope pulleys to one of the car rope pulleys of the second pair of car rope pulleys by way of the auxiliary rope pulley; and a traction motor arranged to drive the traction sheave.