Title: Swivel hitch structure

Abstract: A hitch structure for connecting in a swivelling mode implements, and particularly agricultural implements such as plows and the like, with pulling machines such as tractors. It comprises basically a guide attached to the pulling machine and, cooperating therewith, a supporting member for the end of the connecting arms of the implement. The supporting member is allowed to slide with respect to the guide in the pull force direction while concurrently rotating in a substantially horizontal plane. Locking means are provided which are effective to automatically prevent the supporting member from rotating when said implement is in its rest position.

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Inventors: Gomiero, Valeriano (Prov. Padova), IT)

Application Number: 609126
Filing Date: 1975-08-29
Publication_date: 1977-08-30
Assignee:
Primary Class(es): 403/102 172/457
Other Classes:
US Patent Ref:

RE21989	Dec, 1941	Morkoski	172/457.
2344474	Mar, 1944	Tanke	172/457.
2430732	Nov, 1947	Orelind et al.	172/457.
2611304	Sep, 1952	Toland	172/457.
2793880	May, 1957	Oehler et al.	280/461.
2935147	May, 1960	Edman et al.	172/457.
3056458	Oct, 1962	Gray	172/457.
3107736	Oct, 1963	Mellen	172/457.
3321030	May, 1967	Thachuk	172/449.
3731750	May, 1973	Brazell	172/457.
3865404	Feb, 1975	Schwartz	280/460.

Other Refs: 170,7971,053,977

Mar, 1960	SW
Jan, 1967	UK

Primary Examiner: Shedd, Wayne L.
Assistant Examiner:
Attorney: Modiano; Guido, Josif; Albert