Reinforced fabric elevator belt with improved internal wear resistance

Patent metadata

Field	Value
Publication number	US-11465885-B2
Application number	US-201716083567-A
Country	US
Kind code	B2
Filing date	Mar 7, 2017
Priority date	Mar 9, 2016
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

A belt (30) for suspending and/or driving an elevator car (14) includes a plurality of tension elements (32) extending longitudinally along a length of the belt, at least one tension element of the plurality of tension elements having one or more tension element coating layers (46) applied thereto. A plurality of fibers are interlaced with the plurality of tension elements forming a composite belt structure. A belt coating (44) at least partially encapsulates the composite belt structure.

First claim

The invention claimed is:

1. A belt for suspending and/or driving an elevator car, comprising:
a plurality of tension elements extending longitudinally along a length of the belt, each tension element of the plurality of tension elements including one or more tension element coating layers applied thereto and wrapped individually entirely around a perimeter of each tension member;
a plurality of fibers interlaced with the plurality of tension elements forming a composite belt structure; and
a belt coating at least partially encapsulating the composite belt structure;
wherein the one or more tension element coating layers includes a fiber material.

2. The belt of claim 1 , wherein the tension element is a cord formed from a plurality of wires.

3. The belt of claim 1 , wherein the fiber material includes one or more Kevlar, aramid, polyester, nylon, polyphenylene sulfide, glass, cotton, jute, hemp, or any combination or blends thereof.

4. The belt of claim 1 , wherein the one or more tension element coating layers includes an adhesive layer to promote adhesion of the tension element coating layers to the tension element.

5. The belt of claim 1 , wherein the one or more tension element coating layers includes a fiber adhesion layer to promote adhesion to the plurality of fibers and/or the belt coating.

6. An elevator system, comprising:
a hoistway;
a drive machine having a traction sheave coupled thereto;
an elevator car movable within the hoistway;
a counterweight movable within the hoistway;
at least one belt connecting the elevator car and the counterweight, the belt being arranged in contact with the traction sheave such that operation of the drive machine moves the elevator car between a plurality of landings, the at least one belt including:
a plurality of tension elements extending longitudinally along a length of the belt;
one or more tension element coating layers applied to each tension element of the plurality of tension elements and wrapped individually entirely around a perimeter of each tension member;
a plurality of fibers interlaced with the plurality of tension elements forming a composite belt structure; and
a belt coating at least partially encapsulating the composite belt structure;
wherein the one or more tension element coating layers includes a fiber material.

7. The elevator system of claim 6 , wherein the tension element is a cord formed from a plurality of wires.

8. The elevator system of claim 6 , wherein the fiber material includes one or more of Kevlar, aramid, polyester, nylon, glass, cotton, jute, hemp, or any combination or blends thereof.

9. The elevator system of claim 6 , wherein the one or more tension element coating layers includes an adhesive layer to promote adhesion of the tension element coating layers to the tension element.

10. The elevator system of claim 6 , wherein the one or more tension element coating layers includes a fiber adhesion layer to promote adhesion to the plurality of fibers and/or the belt coating.

Assignees

• Otis Elevator Co

Inventors

• Eastman Scott Alan
• Mosher Daniel A
• Zhao Wenping
• Wesson John P
• Guilani Brad

Classifications

• D07B1/22

  Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes · CPC title

• D07B2501/2007

  Elevators · CPC title

• D07B5/006

  by the properties of an outer surface polymeric coating · CPC title

• B66B7/062 Primary

  Belts · CPC title

• D07B2401/205

  Avoiding relative movement of components · CPC title