Single action wheel height adjuster

Details Single action wheel height adjuster Single action wheel height adjuster

1988-12-02

1990-03-06

Massie, IV, Jerome W.

Harvesters

Motorized harvester

Having motor on ground-supported carrier

280 4313, A01D 3474

Patent

active

049054635

ABSTRACT:
In a lawnmower including a housing and wheels for supporting the housing from a ground surface, a wheel height adjusting mechanism including a crank arm associated with each wheel, the crank arms being coupled together for the conjoint movement thereof, the coupling including a shaft mounted from the housing for rotation about its axis, the improvement comprising a gear secured to the shaft for rotation therewith, a plunger supported from the housing so as to be movable between a first position interfering with the gear means and a second non-interfering position, and a spring biasing the plunger to the first position. The plunger may be trigger operated, and the trigger associated with a deck mounted handle. A safety flap may be mounted from the shaft to maintain a relatively constant height from the ground as the wheel height is adjusted.

REFERENCES:
patent: 3190061 (1965-06-01), Gilbertson
patent: 3226920 (1966-01-01), Gilbertson
patent: 3357715 (1967-12-01), Plamper et al.
patent: 3577714 (1971-05-01), Dahl
patent: 3677574 (1972-07-01), Cyr
patent: 3972160 (1976-08-01), Boswell
patent: 4006580 (1977-02-01), Kalleicher
patent: 4167093 (1979-09-01), Pfeiffer et al.

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