The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 1983
Filed:
Apr. 27, 1981
David S Price, Kentwood, MI (US);
Richard A Schafer, Traer, MI (US);
Carl E Kittle, Cedar Falls, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A hitch system includes a yoke pivotally supported by the ends of a rockshaft extending from the sides of the tractor housing. The yoke includes left and right side panels and a two-piece bottom. A drawbar is pivotally coupled to the yoke between the two bottom pieces. Left and right draft links have fore ends pivotally coupled to the yoke and are sway limited in the down position by sway links connecting each draft link with an inboard portion of the yoke. The draft links are sway limited in the raised position by sway surfaces on the sides of the yoke. Lift arms are splined to the rockshaft ends and are pivoted by a pair of lift cylinders coupled between the lift arms and the housing. A pair of lift links connect the lift arms to the draft links. A yoke positioning and draft sensing link includes a fore end connected to a bottom side of the housing and an aft end connected to the yoke. Draft loads from the draft links and from the drawbar are communicated via the yoke to a draft sensor in the yoke positioning and draft sensing link.