Tension member for an elevator
OwnerPedro S. Baranda, Ary O. Mello +1inventors
InventorsPedro S. Baranda, Ary O. Mello, Hugh J. O'Donnell
Life of this patent
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Abstract
A tension member for an elevator system has an aspect ratio of greater than one, where aspect ratio is defined as the ratio of tension member width w to thickness t (w/t). The increase in aspect ratio results in a reduction in the maximum rope pressure and an increased flexibility as compared to conventional elevator ropes. As a result, smaller sheaves may be used with this type of tension member. In a particular embodiment, the tension member includes a plurality of individual load carrying cords encased within a common layer of coating. The coating layer separates the individual cords and defines an engagement surface for engaging a traction sheave.
Claims24
1-50. (canceled)
A sheave for an elevator system, comprising:
- a surface for receiving a tension member;
- wherein said sheave is made from a non-metallic material.
A sheave for an elevator system, comprising:
- a surface for receiving a tension member;
- wherein said sheave is made from a synthetic material.
A traction sheave for an elevator system, the elevator system including a car, a counterweight and at least one flat tension member interconnecting the car and the counterweight, said traction sheave comprising:
- a surface configured to receive a wide side of the tension member;
- wherein said sheave is made from a non-metallic material.
Dependencies are inferred from the claim text.