Hitch adapter

Details Hitch adapter Hitch adapter

1978-06-12

1980-04-01

Pekar, John A.

Motor vehicles

Vehicle trains

Motorized trailer

280515, B60D 100

Patent

active

041957040

ABSTRACT:
An agricultural tractor includes a rearwardly extending drawbar connected to a hitch member on the tongue of a trailing implement through a hitch adapter that includes a housing mounted on the rearward end of the drawbar and connected thereto by a vertical pin extending through a vertical bore in the housing and the drawbar, the rearward end of the adapter being pivotally connected to the implement tongue by a vertical pin, the axis of which is equidistant from the front and rear universal joints of a PTO hook-up assembly that connects the tractor power take-off to the implement driveshaft. The housing has a cavity with a larger cross section than the cross section of the drawbar and a plate-like clamping element is mounted in the housing cavity and includes upwardly and outwardly diverging inclined surfaces that are engageable with the lower lateral corner edges of the drawbar, the clamp member being vertically adjustable so that when the inclined surfaces engage the edges of the drawbar they clamp the drawbar against the top of the housing while resisting lateral shifting of the drawbar in the cavity, thereby providing a simple adjustment to accommodate the hitch adapter to various size drawbars.

REFERENCES:
patent: 330118 (1885-11-01), Holmes
patent: 3557892 (1971-01-01), Burrough
patent: 4008905 (1977-02-01), Soteropulos et al.

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