Earth working – With drive means for tool or cleaner – Plural driven tools
Patent
1977-11-23
1982-06-22
Johnson, Richard J.
Earth working
With drive means for tool or cleaner
Plural driven tools
172117, 172125, 172112, A01B 3306
Patent
active
043357903
ABSTRACT:
A soil cultivating implement has tined, rotatable soil working implements mounted along the length of an elongated transverse frame portion that has carriers pivoted to the front of the frame by at least one pivot that defines a single axis. The rear ends of the carriers comprise stops with resilient connections that limit and bias the frame portion's position. The frame portion, together with soil working members are displaceable up and down relative to the remainder of the frame, responsive to ground conditions. Shield plates are mounted along the lengths of arms that pivotably interconnect a rear supporting roller to the front of the frame. Each working member includes a support made up of interconnected strips that are bent to form arms. The outer ends of the arms have plates and form holders that engage tine fastening portions. The strips are clamped between multi-sided plates and deflect when the tines encounter obstacles.
According to one aspect of the invention there is provided a soil cultivating implement of the kind set forth, wherein said frame portion is pivotable upwardly and downwardly relative to said frame about a single axis.
REFERENCES:
patent: 1285950 (1918-11-01), Corbin
patent: 1476917 (1923-12-01), Patitz
patent: 3885633 (1975-05-01), Lely et al.
patent: 4042039 (1977-08-01), Lely
patent: 4088083 (1978-05-01), Dail
patent: 4090569 (1978-05-01), Lely
patent: 4124078 (1978-11-01), Lely et al.
Johnson Richard J.
Mason William B.
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