Elevator system suspension member

Patent metadata

Field	Value
Publication number	US-11214465-B2
Application number	US-201715843793-A
Country	US
Kind code	B2
Filing date	Dec 15, 2017
Priority date	Dec 16, 2016
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

A belt for suspending and/or driving an elevator system component include one or more metallic cord tension elements extending along a length of the belt, and one or more non-metallic tension elements extending along a length of the belt. Each non-metallic tension element is formed from a non-metallic material. The one or more metallic cord tension elements and the one or more non-metallic tension elements are arrayed laterally across a lateral width of the belt. The belt may be used in an elevator system including a hoistway, a drive machine having a traction sheave coupled thereto, an elevator car movable within the hoistway. The belt is operably connected to the elevator car and interactive with the traction sheave to suspend and/or drive the elevator car along the hoistway.

First claim

What is claimed is:

1. A belt for suspending and/or driving an elevator system component, comprising:
two or more metallic cord tension elements extending along a length of the belt;
two or more non-metallic tension elements extending along a length of the belt, each non-metallic tension element formed from a non-metallic material; and
a jacket, wherein the two or more metallic cord tension elements and the two or more non-metallic tension elements are at least partially encased in the jacket;
wherein the two or more metallic cord tension elements and the two or more non-metallic tension elements are arrayed laterally across a lateral width of the belt;
wherein the two or more non-metallic tension elements include a plurality of fibers extending along a length of the non-metallic tension element bonded to a polymer matrix;
wherein the two or more metallic cord tension elements and the two or more non-metallic tension elements are arranged in two or more groups arranged laterally across a width of the belt, each group including:
two metallic cord tension elements of the two or more metallic cord tension elements; and
one non-metallic tension element of the two or more non-metallic tension elements disposed between the two metallic cord tension elements;

wherein a portion of the jacket is disposed between laterally adjacent groups of the two or more groups;
wherein a first metallic cord tension element of a first group of the two or more groups is adjacent at a first side to the non-metallic tension element of the first group and laterally adjacent at a second side to a second metallic cord tension element of a second group of the two or more groups.

2. The belt of claim 1 , wherein a laterally outboardmost metallic cord tension element of the two or more metallic cord tension elements is located laterally outboard of the laterally outboardmost non-metallic tension element of the two or more non-metallic tension elements.

3. The belt of claim 1 , wherein the jacket is formed from a polymer material.

4. The belt of claim 1 , wherein each metallic cord tension element of the two or more metallic cord tension elements has a greater cord width in a belt thickness direction than each non-metallic tension element width in the belt thickness direction of the two or more non-metallic tension elements.

5. The belt of claim 1 , wherein the plurality of fibers are formed from one or more of carbon, glass, polyester, nylon, or aramid material.

6. The belt of claim 1 , wherein each metallic cord tension element is formed from a plurality of steel wires arranged into a cord.

7. An elevator system, comprising:
a hoistway;
a drive machine having a traction sheave coupled thereto;
an elevator car movable within the hoistway; and
a belt operably connected to the elevator car and interactive with the traction sheave to suspend and/or drive the elevator car along the hoistway, the belt including:
two or more metallic cord tension elements extending along a length of the belt, each metallic cord tension element including a plurality of steel wires arranged into a cord;
two or more non-metallic tension elements extending along a length of the belt, each non-metallic tension element formed from a non-metallic material; and
a jacket, wherein the two or more metallic cord tension elements and the two or more non-metallic tension elements are at least partially encased in the jacket;
wherein the two or more metallic cord tension elements and the two or more non-metallic tension elements are arrayed laterally across a lateral width of the belt;
wherein the two or more non-metallic tension elements include a plurality of fibers extending along a length of the non-metallic tension element bonded to a polymer matrix;
wherein the two or more metallic cord tension elements and the two or more non-metallic tension elements are arranged in two or more groups arranged laterally across a width of the belt, each group including:
two metallic cord tension elements of the two or more metallic cord tension elements; and
one non-metallic tension element of the two or more non-metallic tension elements disposed between the two metallic cord tension elements;

wherein a portion of the jacket is disposed between laterally adjacent groups of the two or more groups;
wherein a first metallic cord tension element of a first group of the two or more groups is laterally adjacent at a first side to the non-metallic tension element of the first group and laterally adjacent at a second side to a second metallic cord tension element of a second group of the two or more groups.

8. The elevator system of claim 7 , wherein a laterally outboardmost metallic cord tension element of the two or more metallic cord tension elements is located laterally outboard of the laterally outboardmost non-metallic tension element of the two or more non-metallic tension elements.

9. The elevator system of claim 7 , wherein the jacket is formed from a polymer material.

10. The elevator system of claim 7 , wherein each metallic cord tension element of the two or more metallic cord tension elements has a greater cord width in a belt thickness direction than each non-metallic tension element width in the belt thickness direction of the two or more non-metallic tension elements.

11. The elevator system of claim 7 , wherein the plurality of fibers are formed from one or more of carbon, glass, polyester, nylon, or aramid material.

Assignees

• Otis Elevator Co

Inventors

• Sherrick Kathryn Rauss
• Blackaby Barry G

Classifications

• D07B2201/1092

  Parallel strands · CPC title

• D07B2201/1016

  characterised by the use of different strands · CPC title

• D07B2201/206

  arranged parallel to the axis · CPC title

• D07B1/22

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

• D07B2205/3007

  Carbon · CPC title