Land vehicles – Wheeled – Articulated vehicle
Patent
1979-09-21
1981-05-19
Reese, Randolph A.
Land vehicles
Wheeled
Articulated vehicle
172450, A01B 59043
Patent
active
042680573
ABSTRACT:
A sway limiting apparatus is disclosed for three-point hitches which has both sway and non-sway settings to either permit limited lateral movement of the draft arms or maintain a constant dimension between the draft arms while the hitch is being lowered or raised. The sway limiting apparatus includes a contoured sliding block which abuts and slides on a complementary bar bracket adjustably mounted to the tractor frame. The sliding block is slotted for adjustment fore and aft along the draft arm, and it includes both inclined surface portions and a tapered surface portion. In the non-sway setting, the inclined surface portions of the sliding block bear against the bar bracket to restrict any side sway while the hitch is being raised or lowered and to maintain the distance between the hitch connection points at a constant dimension. The bar bracket is selectively moved to a second position for the sway setting wherein the tapered surface portion of the sliding block bears against the bar bracket when controlled or restricted sway movement is desirable.
REFERENCES:
patent: 3047076 (1962-07-01), Wier et al.
patent: 3627060 (1971-12-01), Lemmon
patent: 3847228 (1974-11-01), Slosiarek et al.
patent: 3888316 (1975-06-01), Azzarello
patent: 3910355 (1975-10-01), Elfes et al.
patent: 4116458 (1978-09-01), Berg
Engelmann Roger F.
Thurler James E.
J. I. Case Company
McGiehan Donn
Reese Randolph A.
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