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:
Jan. 08, 2013
Filed:
Sep. 22, 2008
Gerd Bernhardt, Haenichen, DE;
Sergiy Fedotov, Dresden, DE;
Gerd Bernhardt, Haenichen, DE;
Sergiy Fedotov, Dresden, DE;
CLAAS Selbstfahrende Erntemaschinen GmbH, Harsewinkel, DE;
Abstract
A hitch device for a working vehicle for coupling a working device to the working vehicle has a lifting shaft unit supported in the frame structure of the working vehicle, and a coupling structure that is operatively connected therewith. The lifting shaft unit includes a lifting shaft, at least one lifting arm that is fixedly connected with the lifting shaft, and at least one reciprocating cylinder, which is hingedly connected with the lifting arm. The coupling structure includes first, upper coupling elements, which are located on the frame structure, second, lower coupling elements, which are hingedly connected to the frame structure, and connecting elements that are hingedly located on lifting arms of the lifting shaft. At least one of the connecting elements is rigid. In this manner, it is ensured that the load on the coupling elements that form the hitch device is balanced, even when a load is introduced asymmetrically.