Patent ID: 6220006
Filing Date: 2001-04-24
Classification: A01D,B60Y,Y10S,Y10T

Abstract:
A method of accelerating a mower comprising the steps of:providing a mower having a frame, a plurality of wheels including at least a first drive wheel operatively supported by said frame, an engine operatively mounted to said frame, and a mower deck operatively connected to said frame;providing a dynamic drive system for use in transferring power from said engine to said at least first drive wheel, said dynamic drive system having a drive pulley that is selectively rotatable by said engine, a driven pulley that is operatively connected to said at least first drive wheel, a double pulley having first and second pulley portions and a double pulley shaft, a first belt used to operatively connect said drive pulley to said first pulley portion of said double pulley, a second belt used to operatively connect said second pulley portion of said double pulley to said driven pulley, and an idler pulley used to take up any slack in said first and second belts;depressing an acceleration pedal;engaging said first belt to said engine pulley and to said first pulley portion of said double pulley in a manner corresponding to the amount of depression provided to said acceleration pedal;decreasing the diameter of said first belt about said double pulley shaft;increasing the diameter of said second belt about said double pulley shaft;absorbing tension in said second belt with said idler pulley;rotating said driven pulley at a first rotational speed; and,accelerating said at least first drive wheel.