Patent ID: 9126233
Filing Date: 2015-09-08
Classification: B07B,Y10T

Abstract:
1. A device for insertion or removal of a grading cylinder into or from a grading machine that includes drive means to drive rotation of the grading cylinder about its central axis, the device comprising: (a) drive selection means to selectively engage the drive means with, or selectively disengage the drive means from, the grading cylinder; (b) a retainer to hold the cylinder away from the drive means when disengaged therefrom, the retainer comprising at least one roller and/or slider for axial movement or displacement of the cylinder along its central axis between a drive position for the cylinder adjacent the drive means, and a change position for the cylinder suitable for insertion or removal of the cylinder from the machine; wherein the retainer comprises a frame, the at least one roller and/or slider being mounted to the frame and upwardly oriented to make direct contact with a lower half of the cylinder when held by the retainer away from the drive means, such that the cylinder rests upon the at least one roller and/or slider during said axial movement of the cylinder along its central axis from said drive position to said change position.