Automatic electrical bed knife adjuster

Details Automatic electrical bed knife adjuster Automatic electrical bed knife adjuster

1981-03-31

1984-10-30

Mancene, Gene

Harvesters

Cutting

Rotating cutting-reel type

56 102, 83 72, 241 37, A01D 5522, A01D 7508

Patent

active

044793464

ABSTRACT:
An electrically operated automatic adjustment system for a reel blade lawn mower to provide the proper contact pressure and cutting clearance between the reel blade and the bedknife at all times. An electrical signal is generated across the bedknife and reel blade that functionally represents the contact pressure. One or more measurable parameters of the signal define an optimum contact pressure. A control circuit uses signal values to continuous monitor and drive (if necessary) a motor or other control device connected to either the bedknife or the reel blade to maintain the optimum spatial relationship between the bedknife and the reel blade for optimum cutting.

REFERENCES:
patent: 2782853 (1957-02-01), Heffelfinger
patent: 2990741 (1961-06-01), Hasse et al.
patent: 4084752 (1978-04-01), Hagiwara et al.
patent: 4198006 (1980-04-01), Rolfe
patent: 4205797 (1980-06-01), Bennett et al.
patent: 4335569 (1982-06-01), Keeney et al.

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