H - Electricity – 02 – G
Patent
H - Electricity
02
G
337/133
H02G 15/007 (2006.01) B25B 7/02 (2006.01) B25B 27/28 (2006.01) H02G 3/06 (2006.01) H02G 3/18 (2006.01)
Patent
CA 1266899
TITLE: STRAIN RELIEF BUSHINGS Abstract of the Disclosure Unitary strain relief bushings for axially securing either a flat or round conduit comprised of two distinct but substantially externally similar bushing segments which are operationally hingeably folded together. Each generally "bullet shaped" bushing includes a tapered shank which extends between a narrowed front and an annular, larger diameter rear collar which is adapted to contact the workpiece. For manipulation purposes a major circumferential groove is defined in the collar, and it is adapted to be engaged by the curved tong elements of a conventional installing tool. A smaller diameter "snap fit" groove circumferentially defined upon the bushing between the shank and the annular collar shoulder is adapted to be snap fitted into the workpiece orifice. In the best mode the bushing comprises twin cooperating halves including a female segment and cooperating, similarly profiled male segment which may be operatively folded together against yieldable bias from integral low profile hinge structure which extends symmetrically between both halves. The female includes an internal cavity and the male includes a tongue portion which is adapted to be received within the cavity to contact and frictionally secure the cable. At least a portion of the thickness of the tongue is substantially aligned a portion of the width of the collar groove to minimize dynamic rocking effects otherwise introduced in response to collar compression. moreover, the tapered nose of each bushing is preferably in the form of a paraboloid or ellipsoid.
527151
Hill Royce W.
Nelson Danny M.
Finlayson & Singlehurst
Micro Plastics Inc.
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