Patent ID: 7753174
Filing Date: 2010-07-13
Classification: B66B

Abstract:
1. Elevator installation with a number of cars in a shaft, comprising: at least a second car disposed underneath a first car, a drive with a traction sheave and at least one cable strand associated with each car, said at least one cable strand being led over the traction sheave and connecting the associated car to a counterweight, and the second car being kept in a suspension ratio of 1:1 and being connected to its counterweight by means of two cable strands associated with respective cable fastening points on different sides of the second car, said two cable strands being led over the traction sheave of the second car, each of said two cable strands comprising a first cable strand portion leading from the respective cable fastening point to a respective first deflecting roller and a second cable strand portion as a continuation of said first cable strand portion, said second cable strand portions leading from the respective first deflecting rollers and converging on one another in a direction of a further side of the second car, the traction sheave associated with the second car being offset from a center of the second car when seen in a plan view and comprising two traction sheave parts, over each of which one of the two cable strands of the second car is led, a distance between the two traction sheave parts being less than a distance between the first cable strand portions of the two cable strands at said respective cable fastening points, and a cable guiding device comprising at least said respective deflecting rollers which subjects the two cable strands of the second car to equal loading.