Shank-mounted press wheel assembly

Details Shank-mounted press wheel assembly Shank-mounted press wheel assembly

1986-08-06

1987-12-22

Johnson, Richard J.

Planting

Drilling

Lister units

A01C 720

Patent

active

047140330

ABSTRACT:
A shank-mounted press wheel assembly includes a main shank bracket cast as a unitary structure and adapted for securing against the aft face of a shank by a single U-bolt. The cast structure includes an integral transverse pivot for mounting a fore-and-aft extending press wheel drawbar and a rearwardly extending leg for receiving the upper end of a tension link supporting a compression spring for providing adjustable down-pressure on the press wheel. Vertical adjustments of the press wheel assembly may be made quickly and conveniently by simply loosening two nuts on the U-bolt which secures the bracket to the shank. Angular travel stops for the drawbar are provided by a locknut on the tension link and by the solid compressed length of the coil spring. An adjustable wheel support located on the aft end of the drawbar permits the press wheel center line to be adjusted with respect to the tool shank center line.

REFERENCES:
patent: 309403 (1884-12-01), Otstot
patent: 2259890 (1941-10-01), Hipple
patent: 2738969 (1956-03-01), Morris
patent: 2849969 (1958-09-01), Taylor
patent: 4296695 (1981-10-01), Quanbeck
patent: 4579071 (1986-04-01), Johnson
patent: 4608933 (1986-09-01), Wyrill

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