Patent ID: 6158322
Filing Date: 2000-12-12
Classification: A01G,Y10T

Abstract:
A saw assembly for a grip-harvester, comprising:a stand;a saw bar;a chain sprocket;a said saw chain running around said bar and said chain sprocket;a bar holder pivotably journalled on said stand;a saw motor driving said chain sprocket;a hydraulic cylinder mounted on said stand and having a piston rod and a connection to said bar holder so as to move said saw bar in and out to perform a sawing operation;wherein said connection comprises a first toothed wheel pivotably journalled in said stand, and coaxially, rigidly joined to said bar holder, at least a sector of a first toothed wheel rim mounted level with and facing said piston rod;said piston rod including a rack with teeth facing said first toothed wheel and in engagement with said teeth on said at least a sector of said rim; anda device for sensing and recording angular position of said saw bar in relation to an initial position, said sensing and recording device comprising a second toothed wheel which is smaller than and is in toothed engagement with said first toothed wheel so that a gear ratio of >1 is obtained, and said sensing and recording device including at least one sensor which, in said initial position of said saw bar, is positioned immediately opposite a gap between two teeth or immediately opposite a tooth in said second toothed wheel.