Hitch flexing hinge

Details Hitch flexing hinge Hitch flexing hinge

1986-08-12

1988-01-26

Johnson, Richard J.

Earth working

Plural wheeled implements

Outrigged implement adjustable inwardly

172677, 172776, 403278, A01B 7306, A01B 59042

Patent

active

047211679

ABSTRACT:
A hitch flexing hinge included within the draft beams of an implement frame of the type that enables vertical flexing of the frame sections. The hinge includes a yoke attached to the drawbar of a draft vehicle and a body section that is received in one end of the draft beam. The body portion carries a swivel ball and attachment of the draft beam to the swivel ball allows rotational twisting of the draft beam about its longitudinal axis as the implement frame sections flex.

REFERENCES:
patent: 3223179 (1965-12-01), MacKenzie
patent: 3256942 (1966-06-01), Van Sickle
patent: 3367678 (1968-02-01), Tonne
patent: 3436098 (1969-04-01), Orendorff
patent: 3708018 (1973-01-01), Wilbeck
patent: 4029155 (1977-06-01), Blair
patent: 4044842 (1977-08-01), Worick
patent: 4117893 (1978-10-01), Kincebaw
patent: 4126187 (1978-11-01), Schreiner
patent: 4137852 (1979-02-01), Pratt
patent: 4220350 (1980-09-01), Hatcher
patent: 4260172 (1981-04-01), Rettig
patent: 4301873 (1981-11-01), Baxter
patent: 4318444 (1982-03-01), Hake
patent: 4319643 (1982-03-01), Carter
patent: 4355689 (1982-10-01), Friggstad

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