Cable clamp construction

• US 4,127,316 A
• Filed: 05/16/1977
• Issued: 11/28/1978
• Est. Priority Date: 05/16/1977
• Status: Expired due to Term

• Current Assignee: Labinal Components and Systems, Inc.
• Original Assignee: TRW Inc. (Northrop Grumman Corporation)
• Inventors: McKee, William H., Witte, Roy
• Primary Examiner(s): Lake, Roy
• Assistant Examiner(s): Jones, DeWalden W.
• Application Number:
  US05/797,588
• Time in Patent Office: 561 Days
• Field of Search: 339/103 R, 339/107, 339/91 R, 24/257 R
• US Class Current: 439/468
• CPC Class Codes: H01R 13/5808 formed by a metallic element crimped around the cable H01R4/185 takes precedence

Abstract

A deformable cable clamp for use with various ribbon connectors is readily mountable on a connector end portion to conveniently clamp a cable of wires in position prior to application of a cover or hood. The provided clamp enables the wire terminations to be effected either prior to or after the cable from which the wires emanate is secured in place by the clamp. The clamp is readily engaged with the cable by a simple bending step to effect a strain-free relationship between the cable wires and connector contacts. The simplicity of the construction provided lends itself particularly well to automated assembly operations.

Claims

1. A cable clamp for an electrical connector adapted to terminate conductors of such cable therein, said clamp being separate from the connector and comprising a base for mounting said clamp on a portion of such connector;

deformable clamp means joined to said base for being formed against a cable outer periphery and clampingly engaging a peripheral portion of such cable to be clamped and retaining such engaged cable portion in relatively immovable relation relative thereto;

said deformable clamp means being substantially nonresilient and of sufficient strength to prevent movement of an engaged cable relative thereto in the absence of discrete securing means.

2. The cable clamp of claim 1 wherein said means for engaging said cable is formed of a ductile material.

3. The cable clamp of claim 1 wherein said clamp is an integral metal element including portions forming said means for engaging such a cable, at least said last-mentioned means being formed of ductile metal.

4. The cable clamp of claim 3 wherein said last-mentioned means is deformable from a cable receiving position into a cable gripping position which is maintained by the inherent resistance to deformation of said metal forming said last-mentioned means.

5. The cable clamp of claim 1 in which the cable engaging means comprises a deformable clamp member connected to said base portion and adapted to move over said base portion and urge an engaged cable peripheral portion toward said clamp base portion.

6. The cable clamp of claim 5 in which end walls are joined to opposed ends of said clamp base portion and disposed adjacent opposite ends of said deformable clamp member;

said walls having upper edges adapted to support a length of a cable adapted to be clamped.

7. The cable clamp of claim 6 in which said clamp member comprises a proximal planar portion joined to said clamp base portion and defining a side wall thereof intermediate said clamp end walls;

and an arcuate portion contiguous with said planar portion adapted to be bent into overlying engagement with said clamp base portion generally along an axis defined by the juncture with said proximal planar portion.

8. The combination comprising, a cable clamp as in claim 1 and an electrical connector on which said cable clamp is mounted;

said connector comprising a body of electrically insulating material having a plurality of wire-engaging contacts mounted therein for engagement with wires of a cable held by said clamp.

9. The combination of claim 8 in which said electrical connector is a solderless ribbon-type connector.

10. A cable clamp for an electrical connector adapted to terminate conductors of such cable therein, said clamp comprising a base portion for mounting on a portion of such connector, end walls extending from spaced portions of such base portion for supportably engaging spaced peripheral portions of such cable to be clamped in place by said clamp;

deformable, substantially nonresilient clamping means for moving over said base portion and having opposed lateral edges spaced from said end walls so as to be positioned therebetween;

said clamping means being movable from a position above the terminal edges of said end walls over said base portion toward said base portion whereby such cable supported on said end walls is urged toward said base portion with cable portions interposed said end walls being urged by said clamping means below the plane of said end wall distal edges, and such cable is locked in place in the absence of discrete securing means.

11. The combination comprising, a cable clamp as in claim 10 and an electrical connector on which said cable clamp is mounted;

said connector comprising a body of electrically insulating material having a plurality of wire-engaging contacts mounted therein for engagement with wires of a cable held by said clamp.

12. combination of claim 11 in which said electrical connector is a solderless ribbon-type connector.

13. A method for effecting strain free terminations between conductors extending from a cable and contacts of an electrical connector by means of a clamp for mounting on a connector portion and having a deformable substantially nonresilient cable engaging clamp portion, comprising effecting terminations between the conductors and said connector contacts;

and deforming the cable engaging clamp portion about a peripheral portion of said cable from which said conductors extend so as to lock the same to said clamp in the absence of discrete securing means whereby forces imparted to said cable will not be reacted to at the conductor-contact terminations when said clamp is mounted on said connector.

14. A method for effecting strain free terminations between conductors extending from a cable end and contacts of a an electrical connector by means of a clamp for mounting on a connector portion and having a substantially nonresilient, deformable cable-engaging clamp portion, comprising deforming the cable-engaging clamp portion about a peripheral portion of said cable from which said conductors extend so as to fixedly position said cable peripheral portions relative to said clamp in the absence of discrete securing means;

and effecting terminations between the conductors and said connector contacts.