Elevator system suspension member termination

Patent metadata

Field	Value
Publication number	US-10850944-B2
Application number	US-201715806012-A
Country	US
Kind code	B2
Filing date	Nov 7, 2017
Priority date	Nov 7, 2016
Publication date	Dec 1, 2020
Grant date	Dec 1, 2020

Abstract

A suspension member for suspending and/or driving an elevator car of an elevator system includes a plurality of tension members extending along a length of the suspension member including a plurality of fibers extending along the length of the suspension member bonded into a polymer matrix. A jacket substantially retains the plurality of tension members. The suspension member is configured to be deformed at a suspension member end to allow for installation of the suspension member end into a termination assembly of the elevator system. A method of installing a suspension member of an elevator system into a termination assembly includes deforming a suspension member end and reforming it to a selected shape, inserting the suspension member end into the termination assembly and curing and/or hardening it, and applying a load thereto or to the socket or the wedge to secure the suspension member end in the termination assembly.

First claim

What is claimed is:

1. A suspension member for suspending and/or driving an elevator car of an elevator system comprising:
a plurality of tension members extending along a length of the suspension member including a plurality of fibers extending along the length of the suspension member bonded into a polymer matrix;
a jacket substantially retaining the plurality of tension members; and
wherein the suspension member is deformed at a suspension member end to allow for installation of the suspension member end into a termination assembly of the elevator system, the suspension member having a closed wedge cross-sectional shape at the suspension member end;
wherein the suspension member includes a plurality of tension member layers, and the wedge-shaped cross-section includes additional tension member layers between internal surfaces of the suspension member at the suspension member end, such that the suspension member end includes at least one more tension member layer than the remainder of the suspension member.

2. The suspension member of claim 1 , wherein the plurality of fibers are one or more of carbon, glass, polyester, nylon or aramid fibers.

3. The suspension member of claim 1 , wherein the plurality of fibers extend continuously along the length of the suspension member.

4. The suspension member of claim 1 , further comprising one or more thermoplastic layers disposed in the suspension member, the one or more thermoplastic layers softened at the suspension member end to allow for deformation of the suspension member end.

5. The suspension member of claim 1 , wherein the suspension member end is deformed by application of heat and/or solvent to the suspension member end.

6. An elevator system, comprising:
a hoistway;
an elevator car disposed in the hoistway;
a suspension member operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway, the suspension member including:
a plurality of tension members extending along a length of the suspension member including a plurality of fibers extending along the length of the suspension member bonded into a polymer matrix;
a jacket substantially retaining the plurality of tension members; and a termination assembly disposed in the hoistway and operably connected to a suspension member end of the suspension member;
wherein the suspension member is deformed at the suspension member end to allow for installation of the suspension member end into the termination assembly, the suspension member having a closed wedge cross-sectional shape at the suspension member end;
wherein the suspension member includes a plurality of tension member layers, and the wedge-shaped cross-section includes additional tension member layers between internal surfaces of the suspension member at the suspension member end, such that the suspension member end includes at least one more tension member layer than the remainder of the suspension member.

7. The elevator system of claim 6 , wherein the plurality of fibers extend continuously along the length of the suspension member.

Assignees

• Otis Elevator Co

Inventors

• Fargo Richard N
• Gurvich Mark R
• Ericson Richard J
• Logan Douglas E
• Wesson John P
• Mckee David Wayne
• Zhao Wenping

Classifications

• B66B7/085 Primary

  Belt termination devices · CPC title

• B66B7/062 Primary

  Belts · CPC title

• F16G11/05

  by using conical plugs insertable between the strands · CPC title

• B66B9/00

  Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12) · CPC title

• B66B19/02

  Installing or exchanging ropes or cables · CPC title