Patent ID: 9643818
Date: 2017-05-09
CPC Classifications: B66B

Claim:
1. An elevator installation having an elevator car carrier movable in a travel space, a first elevator car adjustably arranged at the elevator car carrier and a second elevator car arranged at the elevator car carrier comprising: a drive unit arranged at the elevator car carrier; a drive roller rotated by the drive unit; a guide roller arranged at the elevator car carrier and being displaceable relative to the elevator carrier unit; and a traction device guided by the drive roller and the guide roller and suspending the first elevator car and the second elevator car, wherein at least the first elevator car is adjustable relative to the elevator car carrier by the drive unit driving the traction device through the drive roller, the traction device forming a closed loop, and wherein a tension of the traction device is settable by displacement of the guide roller relative to the elevator car carrier; wherein the traction device travels directly between the drive roller and the guide roller, the first elevator car is suspended on a first portion of the traction device and the second elevator car is suspended on a second portion of the traction device, and wherein the first portion and the second portion travel in opposite direction from each other.