Elevator suspension and/or driving assembly having at least one traction surface defined by weave fibers

Patent metadata

Field	Value
Publication number	US-9617118-B2
Application number	US-201013641882-A
Country	US
Kind code	B2
Filing date	Sep 20, 2010
Priority date	May 13, 2010
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

An exemplary elongated elevator load bearing member of a traction elevator system includes a plurality of tension elements. A plurality of weave fibers transverse to the tension elements are woven with the tension elements. The weave fibers define at least one traction surface of the load bearing member.

First claim

We claim:

1. An elevator system, comprising:
an elevator car;
a counterweight; and
at least one elongated elevator load bearing member coupling the elevator car to the counterweight and supporting a load associated with the elevator car and counterweight, the at least one elongated elevator load bearing member including
tension elements;
weave fibers transverse to the tension elements and woven with the tension elements, the weave fibers defining at least one traction surface of the load bearing member; and
a coating over the weave fibers, the coating having an exterior surface texture defined at least in part by the weave fibers.

2. The elevator system of claim 1 , wherein a thickness of the weave fibers establishes a spacing between the at least one traction surface and the tension elements that prevents the tension elements from contacting a component that the at least one traction surface engages.

3. The elevator system of claim 2 , wherein
the weave fibers are arranged in a pattern;
the pattern comprises a predetermined spacing between the weave fibers; and
the spacing exists along a direction parallel to a length of the tension elements.

4. The elevator system of claim 1 , wherein the tension elements comprise a first material and the weave fibers comprise a second, different material.

5. The elevator system of claim 4 , wherein the tension elements comprise metal and the weave fibers are non-metallic.

6. The elevator system of claim 1 , wherein the weave fibers comprise an elastomer material.

7. The elevator system of claim 6 , wherein the weave fibers include elastomer fibers.

8. The elevator system of claim 6 , wherein the weave fibers are at least partially coated with the elastomer material.

9. The elevator system of claim 1 , wherein the coating comprises urethane.

10. The elevator system of claim 1 , wherein the coating comprises thermoplastic polyurethane.

11. The elevator system of claim 1 , wherein
the coating comprises a jacket including the at least one traction surface on one side of the at least one elongated elevator load bearing member;
the traction surface has the exterior surface texture defined at least in part by the weave fibers;
the jacket defines another surface on an opposite side of the at least one elongated elevator load bearing member;
the surface on the opposite side is configured to contact one or more sheaves in the elevator system; and
the traction surface is configured to contact a traction sheave and the exterior surface texture is configured to achieve a desired friction characteristic or traction between the at least one elongated elevator load bearing member and the traction sheave.

Assignees

• Wesson John P
• Krishnan Gopal R
• Otis Elevator Co

Inventors

• Wesson John P
• Krishnan Gopal R

Classifications

• D07B2205/2064

  Polyurethane resins · CPC title

• Y10T428/24355

  Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.] · CPC title

• Y10T442/3382

  Including a free metal or alloy constituent · CPC title

• Y10T442/3008

  Woven fabric has an elastic quality · CPC title

• D06N3/0006

  using woven fabrics · CPC title