Abstract A spring clip for securing a terminal connector to an apertured workpiece includes a shank portion having a pair of opposed legs carrying snap lugs disposed opposite internal openings in the legs. The lugs are compressible into the openings in the legs and toward each other during insertion of the shank portion in a workpiece aperture. Each of the lugs is formed as a U-shaped bight having a longitudinally tapered and transversely arced external surface which facilitates inward, camming compression of the lugs during shank insertion. While the lugs are resilient in the sense that they are compressible as aforesaid and will snap apart to engage the workpiece subsequent to full insertion, the U-shaped bight form provides for substantial rigidity in each lug per se which in turn provides for aggressive snap engagement of the workpiece. The workpiece engaging edges of each of the lugs are disposed at a relatively steep acute angle to the head of the clip to thereby render a given size clip effective for use over a relatively wide range of workpiece thicknesses and aperture widths and to automatically compensate for thickness variations adjacent the aperture of an individual workpiece.
A spring clip adapted to be applied to a workpiece having an aperture therethrough comprising a head portion having means thereon for overlying the workpiece and means thereon for threadedly engaging a screw turned into said head portion, and an integral shank portion insertable through the aperture in the workpiece, said shank portion including a pair of opposed, axially extending, generally parallel legs bent downwardly from opposed outboard marginal edges of said head portion, each of said legs having material removed therefrom to provide openings therein, said openings being defined by longitudinal and transverse internal marginal edges of said legs, and a pair of opposed retainer lugs joined to said legs proximate their ends remote from said head portion, said lugs flaring outwardly from said legs generally back toward the plane of said head portion and being disposed opposite said openings in said legs and within imaginary planar extensions of said internal marginal edges of said legs, each of said lugs terminating in a free edge spaced from the plane of said head portion, said free edges being disposed at a relatively steep acute angle to the plane of said head portion, said lugs have external surfaces which are transversely arced and tapered longitudinally from said free edges toward the planes of said legs Whereby said lugs present substantially smooth workpiece engageable surfaces facilitating passage of said shank portion through a workpiece aperture, said lugs per se being resiliently compressible toward each other to permit passage of the shank into a workpiece aperture and being resiliently expansible away from each other upon passage through the workpiece aperture to urge said free edges into aggressive engagement with the workpiece.
Claim 2
Dependent Claim
278 words
A spring clip adapted to be applied to a workpiece having an aperture therethrough comprising a head portion having means thereon for overlying the workpiece and means thereon for threadedly engaging a screw turned into said head portion, and an integral shank portion insertable through the aperture in the workpiece, said shank portion including a pair of opposed, axially extending, generally parallel legs bent downwardly from opposed outboard marginal edges of said head portion, each of said legs having material removed therefrom to provide openings therein, said openings being defined by longitudinal and transverse internal marginal edges of said legs, and a pair of opposed retainer lugs joined to said legs proximate their ends remote from said head portion, said lugs flaring outwardly from said legs generally back toward the plane of said head portion and being disposed opposite said openings in said legs and within imaginary planar extensions of said internal marginal edges of said legs, each of said lugs terminating in a free edge spaced from the plane of said head portion, said free edges being disposed at a relatively steep acute angle to the plane of said head portion, said lugs have external surfaces which are transversely arced and tapered longitudinally from said free edges toward the planes of said legs Whereby said lugs present substantially smooth workpiece engageable surfaces facilitating passage of said shank portion through a workpiece aperture, said lugs per se being resiliently compressible toward each other to permit passage of the shank into a workpiece aperture and being resiliently expansible away from each other upon passage through the workpiece aperture to urge said free edges into aggressive engagement with the workpiece.
Claim 3
Dependent Claim
31 words
A spring clip according to claim 1 wherein each of said lugs is in the form of a longitudinally extending, substantially U-shaped bight opening toward the longitudinal axis of said clip.
Claim 4
Dependent Claim
30 words
A spring clip according to claim 1 wherein the end portions of said legs most remote from said head portion are toed inwardly toward the longitudinal axis of the clip.