Flexible flat tension member termination device

• US 6,484,368 B1
• Filed: 01/11/2000
• Issued: 11/26/2002
• Est. Priority Date: 01/11/2000
• Status: Expired due to Term

• Current Assignee: Otis Elevator Company (Otis Worldwide Corp.)
• Original Assignee: Otis Elevator Company (Otis Worldwide Corp.)
• Inventors: Ericson, Richard J., Favrow, Leroy H., Wesson, John, Rivera, James A.
• Primary Examiner(s): SAKRAN, VICTOR N
• Application Number:
  US09/476,964
• Time in Patent Office: 1,050 Days
• Field of Search: 241/15.R, 241/36.R, 241/36.L, 241/15.M, 241/226
• US Class Current: 24/115.00R
• CPC Class Codes: B66B 7/085 Belt termination devices
• CPC Class Codes: Y10T 24/39 Cord and rope holders
• CPC Class Codes: Y10T 24/3909 Plural-strand cord or rope
• CPC Class Codes: Y10T 24/3967 Bolt perpendicular to cable axis
• CPC Class Codes: Y10T 24/3969 Sliding part or wedge
• CPC Class Codes: Y10T 24/3973 Rope clamped between cone and socket
• CPC Class Codes: Y10T 24/3996 Sliding wedge

Abstract

A termination device for terminating a flexible flat tension member includes a socket and two opposing wedges mounted therein. One of the wedges is preferably pinned within the socket while the other wedge is removable. The invention provides a reliable termination with a safety back-up to retain the tension member even if friction in the device is reduced due to soiling with a friction reducing material.

Claims

1. A termination device for terminating a tension member, comprising:

a socket;

a pair of wedges maintainable in said socket in opposed relationship to one another with a length of the tension member wrapped partially around each of said pair of wedges and between said pair of wedges, one of said pair of wedges being movably pinned within said socket to prevent axial dislocation of said one of said pair of wedges from said socket in the direction of loading of the tension member.

2. A tension member termination device as claimed in claim 1, wherein said socket further comprises a load side plate and a cut side plate.

3. A tension member termination device as claimed in claim 2 wherein said plates include textured surfaces for contact with a separate tension member to increase friction therebetween.

4. A tension member termination device as claimed in claim 3 wherein said textured surfaces provide a coefficient of friction of 0.25 or higher.

5. A tension member termination device as claimed in claim 1, wherein said pair of wedges include textured surfaces where said wedges contact a separate tension member threaded into said tension member termination device.

6. A tension member termination device as claimed in claim 1 wherein said socket includes a connector for a dead hitch, said connector being located in line with a load direction on a tension member terminated by said device.