| 摘要 |
<p>The wedge assembly (10) comprises an elongated centre wedge (12) having two elongated wall sections and two end sections having sloped surfaces. A channel is formed in the centre wedge, which is secured to an edge of a PCB and has grooves (24,25) formed in the wall sections extending along a substantial portion of the length of it. Recesses interrupt a portion of the grooves formed in the wall sections. Two end wedges (26,28) are located at opposite ends of the centre wedge and have surfaces that engage the sloped surfaces of the centre wedge. A screw (34) interconnects the wedges, rotation of the screw in a first direction drawing the two end wedges toward each other such that the end wedges and interconnecting screw are deflected transversely by the sloped surfaces of the centre wedge, to lock the PCB within an elongated slot in a rack. A spring (40), which has two elongated edges positioned in the grooves formed in the wall sections, biases the end wedges into longitudinal alignment with the centre wedge and captivates the screw within the channel formed in the centre wedge.</p> |
