Rotary tilling device

Details Rotary tilling device Rotary tilling device

1986-10-06

1989-02-21

Johnson, Richard J.

Earth working

With drive means for tool or cleaner

Blade movable with respect to cyclically driven carrier

172123, 172125, 172 45, 172545, 56 127, A01B 3302, A01B 3314

Patent

active

048057045

ABSTRACT:
A rotary tilling device has a cutting device having a plurality of cutters each of which is rotatably mounted on a supporting member. 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 cutter is held by a stopper in a tilling position when rotated in a tilling direction, and is released in a grass cutting position when rotated in the opposite direction.

REFERENCES:
patent: 3028919 (1962-04-01), Smith
patent: 3128729 (1964-04-01), Henson
patent: 3557880 (1971-01-01), Van der Lely
patent: 4492271 (1985-01-01), Doering
patent: 4519459 (1985-05-01), Reaume
patent: 4556113 (1985-12-01), Saito
patent: 4611669 (1986-09-01), Ballard

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