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SNAP TRACK

  • US 3,756,637 A
  • Filed: 12/03/1971
  • Issued: 09/04/1973
  • Est. Priority Date: 12/03/1971
  • Status: Expired due to Term
First Claim
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1. Snap track means comprising:

  • a. a supporting plate;

    b. a track having a main portion secured to said supporting plate and an integral rigid flange along one of its lateral edges, said flange being inclined upwardly and outwardly from said main portion and making a predetermined angle with respect to the said supporting plate;

    c. a leaf spring having one edge fixed with respect to said supporting plate and track and having a portion extending parallel with said track flange on the side of said main portion away from said track flange;

    said spring portion bending upwardly and outwardly with respect to said track main portion and making an angle, with said supporting plate, less than said track flange predetermined angle;

    d. a rigid base to be secured on said supporting plate, said base having a dovetail slot along one flat surface thereof, said dovetail slot defining a pair of reentrant flanges inclined toward one another and making an angle with said one surface of said base substantially equal to said track flange predetermined angle, and wherein said reentrant flanges are separated from one another a distance smaller than the distance between said track flange and said spring portion, whereby in use one of said reentrant flanges is applied against said leaf spring portion while the other reentrant flange stands over said track flange, said base is pushed laterally against the bias of said leaf spring until said other reentrant flange passes completely over said track flange, said base is made to sit squarely on said supporting plate through said flat surface and said other reentrant flange and track flange are snapped in mutual abutting engagement by the bias of said leaf spring acting on said one of said reentrant flanges.

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