Patent ID: 6978651
Filing Date: 2005-12-27
Classification: B21D,Y10T

Abstract:
1. A roller cam comprising: a driver having a linear cam surface angled to the vertical; a slide having a parallel pair of spaced apart lower sliding surfaces disposed in a first plane and a parallel pair of spaced apart upper sliding surfaces disposed in a second plane parallel to and above the first plane; a cam adapter having a pair of guiding lower wear plates slidably supporting the pair of lower sliding surfaces, and a pair of upper wear plates slidably supporting the upper sliding surfaces, the lower sliding surfaces being laterally canted downwardly toward each other and the guiding lower wear plates having laterally canted surfaces that parallel and guide the lower sliding surfaces; a cam roller rotatably supported by the slide and responsive to a downward motion of the driver by advancing the slide along the cam adapter; and a pair of adjusting setscrews supported by the cam adapter such that, when the setscrews are advanced, one of the pair of guiding lower wear plates is forced laterally toward the other and into contact with one of the pair of lower sliding surfaces to initially adjust, and thereafter maintain, proportional wear plate load distribution.