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Home Metal Working Electrical-connector-assembly-having-an-anti-decoupling-device

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 Electrical connector assembly having an anti-decoupling device

Details
Inventors: Werth, Dee A.; Luca, Jr., Vincent A.;
Assignee: The Bendix Corporation (Southfield, MI)
Primary Examiner: McQuade; John
Assistant Examiner:
Attorney, Agent or Firm: Lacina; C. D., Eifler; R. J.

An electrical connector assembly of separable first and second shells (100, 200) and a coupling nut (300) having a radial flange (340) rotatably mounted about first shell (100) and rearwardly of an annular shoulder (140) thereof with a coil spring (500) and an annular ring (400) mounted for sliding disposed between flange (340) and shoulder (140) for resisting unwanted rotation. Annular shoulder (140) and annular ring (400) have frusto-conical tapered faces (150, 420) to define therebetween a Vee-shaped vise for longitudinally squeezing the coil spring (500) and camming the spring radially outwardly from snug contacting fitment with the shell (100) and against an inner wall (322) of the coupling nut whereby frictional contact spring (500) against itself and portions of the coupling nut (300) resist rotation.

DETAILED DESCRIPTION We claim: 1.
An electrical connector assembly having an anti-decoupling device comprising: first and second shells (100, 200), said first shell (100) having an annular wall (130) circumjacent an annular shoulder (140); a coupling nut (300) having an inner wall (322) and an end wall (342) rotatably mounted to said first shell (100) and including thread (310) connectable with corresponding thread (210) on the second shell (200) for interconnecting the shells, a spring cavity (330) being formed between end wall (342) and annular shoulder (140) and between annular wall (130) and inner wall (322); and an anti-decoupling device for retarding rotational movement of the coupling nut (300) relative to the interconnected shells, said anti-decoupling device characterized by: an annular ring (400) clearance fit for sliding about first shell (100) and having and end face (410) in abutment with end wall (342) and a forward tapered face (420); and a helical coil spring (500) formed into an annulus and disposed within spring cavity (330), the inner surfaces of each coil of the spring being snugly fit about annular wall (130), coupling rotation advancing end wall (342) longitudinally forward against annular ring (400) and forward tapered face (420) thereof into abutment with coil spring (500) to squeeze the coil spring into abutment with annular shoulder (140) and cam the annulus radially from snug contact with annular wall (130) upwardly against inner wall (322) of the coupling nut, friction developed between coils squeezed together and squeezed against inner wall (322), tapered face (420) and annular shoulder resisting rotation of the coupling nut.
2.
An electrical connector as recited in claim 1, characterized in that annular shoulder (140) on first shell (100) includes a rearwardly tapered face (150), the tapered faces (150, 420) forming a Vee-shaped annulus between which the annulus of the coil spring (500) is fitted.
3.
An electrical connector as recited in claim 1 or 2 wherein forwardly tapered face (420) on annular ring (400) is defined by an angle of between 30


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