Lawn mower with adjustable rear drive wheels

摘要

A self-propelled lawn mower including at least one cutting blade and at least first and second rear drive wheels. Hydro pumps are provided for controlling the drive wheels. Optionally, a grass collection system may be mounted on the mower, with much of the system being located laterally rearward of the rear drive wheels so that the center of gravity of the mower is shifted rearwardly. In order to compensate for such a center of gravity shift, the respective positions of the rear drive wheels are adjustable. In certain example embodiments of this invention, the lateral position of the rear drive wheels may be selectively adjusted as desired by the operator (e.g., to move the center of gravity of the mower forward relative to the rear drive wheels in order to compensate for the added rear-heavy weight of the grass collection system).

主权项

1. A self-propelled lawn mower comprising:
first and second rear drive wheels; a first pump for controlling the first drive wheel, and a second pump for controlling the second drive wheel, the first and second drive wheels being independently drivable via the pumps in both forward and reverse directions so as to permit zero radius turning of the mower, and wherein a first wheel motor is provided between the first rear drive wheel and the first pump and a second wheel motor is provided between the second rear drive wheel and the second pump; at least one cutting blade for cutting grass; means for mounting a grass collection system on the mower, the grass collection system including a grass collecting container adapted to be mounted rearwardly of the rear drive wheels; and adjustment means for adjusting the positions of the rear drive wheels relative to a frame of the mower, the adjustment means permitting the rear drive wheels to be moved forward, away from the grass collecting container and rearward toward the grass collecting container.