Rotary tilling and grass cutting device

Details Rotary tilling and grass cutting device Rotary tilling and grass cutting device

1986-11-17

1988-10-18

Johnson, Richard J.

Earth working

With drive means for tool or cleaner

Blade movable with respect to cyclically driven carrier

56 112, 56 127, 56 169, 172 45, 172545, 172123, A01B 3314, A01B 3316, A01D 4312

Patent

active

047780126

ABSTRACT:
A rotary tiling device has a cutting device having a plurality of cutters each of which is mounted on a supporting member at a base end thereof in such a manner that the cutter is rotatable about a first center. The cutter has a vertical portion and a lateral portion at an end of the vertical portion and has edges on both sides of the vertical and lateral portions. The base end has an arcuated periphery about a second center. The first center is offset from the second center, so that in grass cutting operation, the arcuated periphery is positioned in a position which is further outward than its position in the soil cutting operation.

REFERENCES:
patent: 2656662 (1953-10-01), Hines
patent: 2751737 (1956-06-01), Herod
patent: 2990667 (1961-07-01), Schwalm
patent: 3028919 (1962-04-01), Smith
patent: 3557880 (1971-01-01), van der Lely
patent: 3952811 (1976-04-01), Carre
patent: 4492271 (1985-01-01), Doering
patent: 4519459 (1985-05-01), Reaume
patent: 4556113 (1985-12-01), Saito
patent: 4611669 (1986-09-01), Ballard
patent: 4615395 (1986-10-01), Nagamine

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