Patent ID: 7546723
Filing Date: 2009-06-16
Classification: A01D,B60B,B60G,F16F,Y10T

Abstract:
1. A mower, comprising: a chassis having a front portion and a rear portion; a prime mover mounted on the chassis; a cutter deck supported by the chassis; front wheels attached to the front portion of the chassis; two drive wheel assemblies on different sides of the rear portion of the chassis, each drive wheel assembly connected to the chassis by at least one link pivotable with respect to the chassis; at least one biasing member associated with the drive wheel assemblies and positioned to bias the drive wheel assemblies in a downward direction, the biasing member being constructed of a non-metal material; wherein the drive wheels and front wheels support the chassis for movement over a surface; each drive wheel assembly comprising a drive wheel powered for rotation by the prime mover; and wherein each drive wheel assembly moves up and down relative to the chassis, respectively against and with force exerted by the at least one biasing member, independently of movement of the other drive wheel assembly.