Patent ID: 6739231
Filing Date: 2004-05-25
Classification: B23D,B26D,Y10T

Abstract:
A method to adjust the tension of a cutting blade installed on a band saw, the band saw having a frame, a screw-type tensioner positioned adjacent to the frame, the screw-type tensioner having a rotatable shaft which has opposing ends, a first pulley rotatably connected to the screw-type tensioner, and a second pulley spaced away from the first pulley comprising the steps of:a) positioning a rack and rotatable pinion gear between the screw-type tensioner and the second pulley, wherein the rack and pinion gear are connected by an intermeshed relationship, the rack is movable by the pinion gear and the rack is in a raised position; b) engaging the screw-type tensioner with the rack and operationally tensioning the cutting blade via the screw-type tensioner; c) lowering the rack in a first direction to detension the cutting blade without further manipulation of the screw-type tensioner; and d) raising the rack to completely retension the cutting blade without further manipulation of the screw-type tensioner.