Patent ID: 6820403
Filing Date: 2004-11-23
Classification: A01D

Abstract:
A lawn mower comprising:front wheels; a pair of right and left rear drive wheels, said right rear drive wheel having a left lateral side and said left rear drive wheel having a right lateral side with respect to a transverse direction of the lawn mower; a body frame; a mower unit supported by said body frame forwardly of said rear drive wheels; a grass catcher attached to a rear end of said body frame; a grass collecting duct connected at one end thereof to said mower unit and at the other end to said grass catcher; an engine mounted on said body frame; a drive distributing case receiving drive from said engine, said drive distributing case housing a relay shaft, said relay shaft extending in the transverse direction of the lawn mower for distributing the drive from said engine to a right and left in the transverse direction; a left change speed device, said left change speed device including a left HST case housing a left HST for changing speed of the drive distributed left from said relay shaft, and a left reduction case for reducing the drive from said left HST and transmitting the reduced drive to a left axle of said left rear wheel, said left HST case being disposed level with said left rear drive wheel and said relay shaft, and said left reduction case being disposed on a left lateral side of said left HST case in the transverse direction, and extending downwardly from said left HST case to said left axle along said right lateral side of said left rear drive wheel; a right change speed device, said right change speed device including a right HST case housing a right HST for changing speed of the drive distributed right from said relay shaft, and a right reduction case for reducing the drive from said right HST and transmitting the reduced drive to a right axle of said right rear wheel, said right HST case being disposed level with said right rear drive wheel and said relay shaft, and said right reduction case being disposed on a right lateral side of said right HST case in the transverse direction, and extending downwardly from said right HST case to said right axle along said left lateral side of said right rear drive wheel; wherein said drive distributing case, said right HST and reduction cases and said left HST and reduction cases are fixedly and integrally connected one after another and define a space opened downward for allowing passage of said grass collecting duct therethrough.