Elevator system suspension member termination

Patent metadata

Field	Value
Publication number	US-11718505-B2
Application number	US-202016931032-A
Country	US
Kind code	B2
Filing date	Jul 16, 2020
Priority date	Nov 7, 2016
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

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 when the suspension member end is installed into a termination assembly of the elevator system;
wherein the suspension member is deformed by application of one or more of heat or a solvent material to a selected portion of the suspension member; and
wherein the suspension member is cured to secure the suspension member to the termination after deformation at the termination;
wherein the termination includes an insert disposed at a suspension member outlet of the termination configured to reduce stresses on the suspension member;
wherein the insert is recessed into a termination pocket of the termination.

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 includes a wedge-shaped cross-section at the suspension member end.

6. The suspension member of claim 5 , wherein the wedge-shaped cross-section is formed via the addition of additional suspension member layers at an external surface of the suspension member at the suspension member end.

7. The suspension member of claim 1 , wherein the suspension member end is deformed by dividing each tension member of the plurality of tension members.

8. The suspension member of claim 1 , wherein the suspension member end is deformed by selectively moving or curving tension members of the plurality of tension members into first tension members and second tension members.

9. 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, the termination assembly including:
a socket; and
a wedge installed in the socket, the wedge and socket defining a suspension member inlet and a suspension member outlet at a same surface of the termination assembly;
wherein the suspension member extends into the termination assembly at the suspension member inlet, is wrapped around the wedge and extends toward the suspension member outlet;

wherein the suspension member is configured to be deformed at the suspension member end to allow for installation of the suspension member end into the termination assembly;
wherein the suspension member is cured to secure the suspension member to the termination after wrapping the suspension member around the wedge; and
wherein the socket includes a socket insert located at the suspension member outlet, the socket insert formed from a softer material than the socket to reduce stresses on the suspension member,
wherein the socket insert is recessed into a socket pocket of the socket.

10. The elevator system of claim 9 , wherein the plurality of fibers extend continuously along the length of the suspension member.

11. The elevator system of claim 9 , wherein the suspension member includes a wedge-shaped cross-section at the suspension member end installed into a socket of the termination assembly.

12. The elevator system of claim 11 , wherein the wedge-shaped cross-section is formed via the addition of additional suspension member layers at an external surface of the suspension member at the suspension member end.

13. The elevator system of claim 9 , wherein the suspension member end is deformed by dividing each tension member of the plurality of tension members.

14. The elevator system of claim 9 , wherein the suspension member end is deformed by selectively moving or curving tension members of the plurality of tension members into first tension members and second tension members.

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

• 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

• F16G9/04 Primary

  made of rubber or plastics (F16G9/02 takes precedence) · CPC title