Safety rotor for mower

Details Safety rotor for mower Safety rotor for mower

1980-02-11

1981-11-24

Hafer, Robert A.

Harvesters

Motorized harvester

Including cutter yieldably mounted on its drive means

56295, 30276, A01D 5518

Patent

active

043016421

ABSTRACT:
A hollow and generally closed body 10 of a safety rotor fits on the motor shaft 12 of a rotary mower and replaces a conventional mower blade. The diameter of body 10 is from 0.5 to 0.9 times the width of the swath of the mower, and several strands 11 extend far enough outward from body 10 to cut to the full width of the swath. Spools 21 or 72 contained within the body supply the strands, and a holder responsive to centrifugal force prevents strands 11 from moving outward as body 10 rotates. The strands can be automatically replenished by a strand feeder that operates when the mower slows down and speeds up.

REFERENCES:
patent: 3708967 (1973-01-01), Geist et al.
patent: 3826068 (1974-07-01), Ballas et al.
patent: 4145809 (1979-03-01), Proulx
patent: 4176508 (1979-12-01), Baumann et al.

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