Rope Termination Device

• US 20100037436A1
• Filed: 08/13/2008
• Published: 02/18/2010
• Est. Priority Date: 08/13/2008
• Status: Active Grant

• Current Assignee: ThyssenKrupp Elevator Corporation (Thyssenkrupp AG)
• Original Assignee: ThyssenKrupp Elevator Capital Corporation (Thyssenkrupp AG)
• Inventors: Parker, Alan M., Phan, Chi, Smith, Rory S.
• Granted Patent: US 8,096,024 B2
• Time in Patent Office: Days
• US Class Current: 24/136.K
• CPC Class Codes: B66B 7/08 for connection to the cars or cages, e.g. couplings
• CPC Class Codes: Y10T 24/3971 Rope looped about movable member
• CPC Class Codes: Y10T 24/3973 Rope clamped between cone and socket

Abstract

Disclosed is a termination device for an aramid-based elevator rope having a high breaking strength. The termination device comprises a socket having a cylindrical, tapered internal passageway adapted to receive a corresponding wedge. The wedge includes a semi-cylindrical passageway in a substantially helical configuration to increase the surface area between the associated rope and the wedge. The termination device clamps the length of rope between tapered portions of the socket and the semi-cylindrical passageway of the wedge with a substantially uniform application of force on the cross-section of the rope.

Claims

1. A rope termination assembly comprising:

(a) a rope;

(b) a termination body, the termination body having;

(i) a first portion, the first portion having a truncated conical configuration;

(ii) a second portion, the second portion being integral with the first portion, wherein the second portion has a bulbous shape;

(iii) a bore, the bore passing from a first aperture in the first portion through a second aperture in the second portion of the termination body;

(iv) a groove, the groove being formed within the outer surface of the termination body, wherein the groove extends from the second aperture along the second portion and the first portion of the termination body; and

(v) wherein the rope is configured to pass through the first aperture, through the second aperture, and is seated within the groove in the termination body; and

(c) a socket, wherein the socket is configured to accept the termination body such that the rope is compressed between the socket and the termination body.

2. The rope termination assembly of claim 1, wherein the groove is a helical groove.

3. The rope termination assembly of claim 2, wherein the helical groove is configured such that the rope is subject to a substantially uniform compression along the length of the helical groove when the termination body is engaged with the socket.

4. The rope termination assembly of claim 1, wherein the bore is aligned with a central axis of the termination body.

5. The rope termination assembly of claim 1, wherein the rope is aramid fiber rope.