Cable joining device with breakaway nut

• US 6,604,882 B2
• Filed: 11/01/2001
• Issued: 08/12/2003
• Est. Priority Date: 11/01/2001
• Status: Expired due to Fees

• Current Assignee: Triumph Controls LLC (Triumph Group, Inc.)
• Original Assignee: Triumph Brands, Inc. (Triumph Group, Inc.)
• Inventors: Gordon, Larry, Zambelli, Bob
• Primary Examiner(s): Browne, Lynne H.
• Assistant Examiner(s): FLANDRO, RYAN M
• Application Number:
  US10/003,486
• Publication Number:
  US 20030081986A1
• Time in Patent Office: 649 Days
• Field of Search: 403/2, 403/300, 403/309, 403/313, 403/314, 241/223, 241/226, 241/35.R, 411/2, 411/3, 411/5
• US Class Current: 403/2
• CPC Class Codes: F16B 2200/63 Frangible connections
• CPC Class Codes: F16B 31/021 by means of a frangible part F16B31/025, F16B31/028 take precedence; break members in torque limiters or torque indicators in wrenches or screwdrivers B25B23/1415
• CPC Class Codes: F16C 1/101 Intermediate connectors for joining portions of split flexible shafts and/or sheathings
• CPC Class Codes: F16G 11/025 Fastening means which engage a sleeve or the like fixed on the cable, e.g. caps F16G11/143 and F16G11/146 take precedence
• CPC Class Codes: F16G 11/08 Fastenings for securing ends of driving-cables to one another, the fastenings having approximately the same diameter as the cables
• CPC Class Codes: Y10T 24/3909 Plural-strand cord or rope
• CPC Class Codes: Y10T 403/5761 Interrupted periphery, e.g., split or segmental, etc.
• CPC Class Codes: Y10T 403/5793 including member wedging or camming means

Abstract

An internally threaded (23) collet nut (22) is placed onto the first cable (12) and a first cable (12) is inserted into a collapsible collet (20) on a connector body (18). The collet nut (22) and a breakaway nut (30) are engaged with simple wrenches to establish a reactive torque between the collet nut (22) and the breakaway nut (34) to break away the breakaway nut (34) from the connector body. An enlarged end (16) of the second cable (14) is placed into the interior of a retainer nut (30), which is threaded onto the threaded section (19) of the connector body (18) to abut the collet nut (22), thereby connecting the two cables (12 and 14).

Claims

1. A connector assembly for connecting first and second cables and comprising:

a body having first and second ends,

a collet at said first end for gripping the first cable,

a pocket at said second end for receiving an enlarged end of the second cable,

a collet nut for engaging said body and forcing said collet into gripping engagement with the first cable,

and a retainer nut for engaging said body and retaining the second cable in said pocket;

said collet and retainer nuts each include a length of threads and said body includes a male threaded section for threaded engagement with said threads of said collet nut and said threads of said retainer nut;

said body includes a breakaway nut at said second end for breaking away in response to a predetermined torque between said collet nut and said breakaway nut to provide access to said threaded section of said body by said retainer nut.

2. The assembly as set forth in claim 1 wherein said retainer nut includes an internally threaded pocket for engaging said threaded section and a radial slot for receiving said second cable.

3. The assembly as set forth in claim 2 wherein the length of said threaded section matches the combined length of threads of said collet 20 and retainer nuts so that said collet and retainer nuts abut one another when fully threaded onto said threaded section of said body.

4. The assembly as set forth in claim 3 wherein said collet nut includes a female conical recess and said collet is conical and includes a central bore for engaging the first cable and collet slots for allowing collapse of said collet in response to axial movement of said conical recess onto said conical collet as said collet nut is threaded onto said threaded section of said body.

5. A method of connecting a first cable to a second cable having an enlarged end and comprising the steps:

placing an internally threaded collet nut onto the first cable, inserting the first cable into a collapsible collet on a first end of a connector body, threading the collet nut onto a threaded section of the connector body, establishing a reactive torque between the collet nut and a breakaway nut at a second end of the connector body and breaking away the breakaway nut in response to a predetermined torque between the collet nut and the brekaway nut to provide access to the threaded section of the body, placing the enlarged end of the second cable into the interior of a retainer nut, threading the retainer nut onto the threaded section of the connector body.

6. The method as set forth in claim 5 including threading the retainer nut onto the threaded section of the connector body to abut the collet nut.