Patent ID: 7168227

Claim:
A walk-behind greens mower, comprising: a base; a ground engaging traction member coupled to the base for imparting traction movement to the base for movement along the ground at a given ground speed; an internal combustion engine supported on the base for outputting a driving force to the ground engaging traction member; a grass cutting reel rotatably supported on the base and including a plurality of cutting blades in grass cutting relationship with a bed knife; an electric motor supported on the base for driving the grass cutting reel; a controller coupled to the electric motor and configured to vary a rotational speed of the grass cutting reel; a plurality of ground engaging rollers coupled to the electric motor and grass cutting reel; and a sensor coupled to the traction member for detecting rotational speed of at least one of the ground engaging rollers to output a signal to the controller for determining the drive speed of the mower.