Importance

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Abstract

A locking wedge apparatus for fastening a printed circuit board within an elongated slot in a rack. The apparatus comprises a first member having an elongated, flexible portion terminating in first and second apertured end portions, the elongated and apertured end portions forming a rectangularly shaped channel. A rectangularly shaped member having a plurality of ramps formed along the edges of one surface is positioned in a U-shaped member having a plurality of ramps extending from the bottom wall thereof such that the ramps on each member are in engagement. The assembled U-shaped and rectangularly shaped members are positioned in the channel formed in the first member. A screw member extends lengthwise through said first apertured end portion, through a threaded aperture in said rectangularly shaped member and into said second apertured end portion. Rotating the screw in a forward direction causes the rectangularly shaped member to move along the ramp surfaces of the U-shaped member in a manner such that the elongated flexible portion of said first member is deflected transversely to lock the printed circuit board in place. The apparatus is designed such that a user can specify a desired side load and the corresponding U-shaped/rectangularly shaped combination selected such that the ramp angle therein provides the desired side load.

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First Claim