Self-propelled lawn mower

Details Self-propelled lawn mower Self-propelled lawn mower

1978-12-08

1980-12-09

Love, John J.

Motor vehicles

Compensating devices

56 111, B60K 2300

Patent

active

042379911

ABSTRACT:
A self-propelled rotary lawn mower including a multi-speed transmission comprising a drive shaft which is driven by a prime mover and is rotatably mounted on a mower frame in parallel relationship to the rear wheel axle. Also included is a drive mounted on at least one end portion of the drive shaft for selectively engaging the outer periphery of one of the mower rear wheels which serves as a drive wheel. The drive includes a first or low-speed drive member which is affixed on the drive shaft and has a first drive surface and a second or high-speed drive member which has a second drive surface larger in diameter than the first drive surface. The high-speed drive member is mounted on the drive shaft for relative axial movement between a first or low-speed position wherein the high-speed drive member is axially spaced from the drive wheel and the drive surface of the low-speed drive member is exposed for engagement with the outer periphery of the drive wheel and a second or high-speed position wherein the drive surface of the high-speed drive member is located for engagement with the outer periphery of the drive wheel.

REFERENCES:
patent: 2631458 (1953-03-01), Metzner
patent: 2947132 (1960-08-01), Shaw
patent: 2962854 (1960-12-01), Jepson
patent: 4081048 (1978-03-01), Hendricks

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