Earth working – With drive means for tool or cleaner – Plural driven tools
Patent
1979-09-10
1981-11-03
Johnson, Richard J.
Earth working
With drive means for tool or cleaner
Plural driven tools
172103, 172125, A01B 3306, A01B 3314
Patent
active
042980690
ABSTRACT:
A soil cultivating implement has a frame portion of inverted channel-shaped cross-section with downwardly directed limbs each of which has an inwardly bent-over lip at its lower free end. A row of contra-rotating soil working members are carried by corresponding substantially vertical shafts. A power-operated drive transmission to the soil working members comprises the aforesaid vertical shafts, axially aligned, substantially horizontal shafts and intermeshing bevel pinions. In order to facilitate assembly as well as quick and simple replacement of any soil working member and/or transmission part that may become seriously worn, broken or damaged during operation, the transmission is made up of a plurality of successively neighboring gear casings any one of which can be individually removed, together with the corresponding soil working member and replaced by a similar unit. The successive, substantially horizontal shafts are drivingly interconnected by abutting coupling flanges releasably secured to one another by shear bolts. The shear bolts are readily accessible through holes in the uppermost web or base of the frame portion and each gear casing is secured to a corresponding supporting plate which, in turn, is releasably fastened by bolts to the inwardly directed lips at the lower ends of the frame portion limbs. Each member can be formed by a resilient carrier on a shaft and in one embodiment the drive to the members can be via a gear containing cassette in which the member shafts are splined to respective gears. Also, a spray boom can be secured in front of the members, beneath the frame portion.
REFERENCES:
patent: 2050120 (1936-08-01), Pizarro
patent: 2741173 (1956-04-01), White
patent: 3059704 (1962-10-01), Kasatkin
patent: 3074490 (1963-01-01), Burns
patent: 3367425 (1968-02-01), Heeren
patent: 3616862 (1971-11-01), Lely
patent: 4042039 (1977-08-01), Lely
patent: 4043401 (1977-08-01), Lely
patent: 4072196 (1978-02-01), Lely
patent: 4098345 (1978-07-01), Lely
patent: 4111264 (1978-09-01), Lely
patent: 4130167 (1978-12-01), Lely
patent: 4148364 (1979-04-01), Gross-Scharmann
Johnson Richard J.
Mason William B.
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