Guide rail for supporting boards

Claim 1

A unitary molded plastic guide rail for supporting electronic equipment mounted on a structure having a spaced parallel pair of flange-like edges, said guide rail comprising an elongated molded plastic member with a U-shaped cross section, said member having three contiguous and sides forming a bottom and two side walls in said U-shape, said sidewalls being continuously uniterrupted along the length thereof, one of the side walls being formed into at least two fixed-fixed springs with a detent projecting therefrom, towards the other of said sidewalls, the springs being located near opposite ends of said guide rail and comprising a portion of one of said uninterrupted side wall, the other of said side walls comprising a surface which is smooth and unbroken whereby said one side wall may support a weight when said guide rail supports a horizontally mounted board-like object or may fix a position of one side of a board like object when said guide rail positions a vertically mounted board-like object, the central one of said three contiguous sides having an open window extending only partially across said central side directly said fixed-fixed spring, whereby said spring is free to flex toward and away from the other side wall, while the material of said central side which remains adjacent this window forms an unbroken support surface for continously supporting a structure sliding through said guide rail, thus enabling three sides to receive and support said flange-like edge with said detent applying a spring bias against said edge.