Resilient snap fitting retainer for printed circuit board mounti

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element – Having resilient securing structure on shank

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Details

411510, F16B 1900

Patent

active

055802036

ABSTRACT:
A resilient snap fitting retainer provides a desired retention force despite tolerance variations. A pair of parallel resilient legs extends from a base. The legs are separated by a gap. A deformable rib is provided on at least one of the legs to partially crush when the legs are compressed with sufficient force. The partial crushing compensates for tolerance variations in the size of an opening into which the retainer is inserted or in the size of the retainer itself. The legs are elongated and terminate in wedge shaped feet at their distal end. The feet form a generally arrowhead-like shape for insertion into an opening. The structure of the feet and legs enables the legs to deflect toward each other (i.e., buckle) after the interior surfaces of the legs have made contact at their distal ends as the feet are pushed through the opening.

REFERENCES:
patent: 2984698 (1961-05-01), Strauss
patent: 2995328 (1961-08-01), Whitted
patent: 3120971 (1964-02-01), Bengtsson
patent: 3139768 (1964-07-01), Biesecker
patent: 3485133 (1969-12-01), Rapata
patent: 3550217 (1970-12-01), Collyer
patent: 3756115 (1973-09-01), Schuplin
patent: 4470737 (1984-09-01), Wollar
patent: 4927309 (1990-05-01), Sygnator

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