Retainer for mechanical fastener member

Details Retainer for mechanical fastener member Retainer for mechanical fastener member

1981-11-23

1984-12-04

Smith, Gary L.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Threaded fastener locked to a discreet structure

Prefabricated assembly comprising strip or sheet member...

411337, 411427, F16B 3700, F16B 3704

Patent

active

044861338

ABSTRACT:
A nut retainer for use with a structural member having a nut entrance channel defined between a pair of opposed shoulders or flanges of some predetermined thickness and a nut receiving channel disposed beneath the shoulders. The nut retainer has a generally frusto-conical body constructed from a resiliently deformable polymeric material with the body smaller diameter end fixedly secured to a rectangular nut upper face in a surrounding relationship with a threaded fastener receiving opening. The body larger diameter end is spaced from the nut upper face by some predetermined distance and has a diameter greater than the width of the structural member entrance channel. The retainer body is conformed such that the body exterior side wall will engage the structural member shoulders at areas therealong which are spaced from the nut upper face by a distance which is less than the thickness of the shoulders when the nut is inserted width-wise into the entrance channel. A force applied against the nut retainer causes it to be slightly deformed and allows simultaneous rotation of the nut and retainer 90 degrees so that the nut is captured in the receiving channel beneath the shoulders. When the force on the retainer is released, the retainer moves back toward its unstressed condition and causes the nut upper face to be drawn into an engaging relationship with the underside of the shoulders.

REFERENCES:
patent: 183324 (1876-10-01), Pratt
patent: 292513 (1884-01-01), Shailer
patent: 1655104 (1928-01-01), Oakley
patent: 3036673 (1962-05-01), Santerre
patent: 3346032 (1967-10-01), Gulistan
patent: 4136598 (1979-01-01), Hughes

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