Deere + Company

Werner Zahn

Achim Schibel

Joachim Heilmann

Christian Oberhaus Dr

Reiner Lenz

Martin Kremmer Dr

A three-point hitch for an agricultural tractor includes a lift arm, a lower link arm, and a lift spindle disposed between the lift arm and link arm for transmitting a pivoting movement performed on the lift arm to the link arm. The lift spindle includes a first fastening section on the lift arm and a second fastening section on the link arm. An elongated hole is formed in the second fastening section along a longitudinal direction of the lift spindle, and a mounting pin extends through a fastening opening in the link arm and is mounted in the elongated hole. At least two spaced apart locking regions are formed along the elongated hole for receiving a shaped feature on the mounting pin. A movement of the link arm along the elongated hole is blocked when the shaped feature is received in one of the locking regions.

Three-point hitch for an agricultural machine

A trailer coupling for an agricultural or industrial vehicle includes two guide rails which extend vertical and parallel to each other. A support is slidingly received by horizontal extending guide grooves in the guide rails. Different couplers can be mounted on and exchanged on the support. The support may be inserted into the guides or removed from the guides.

Trailer coupling for a work vehicle

Disclosed is a towing arrangement for a work vehicle. The towing arrangement includes a generally fore-and-aft extending positioning frame including a main frame and a guide frame. The main frame is pivotally connected to the vehicle for vertical pivotal movement between a raised transport position and a lowered position and the guide frame is supported by and movable longitudinally of the main frame and extendable from the free end of the frame by a hydraulic cylinder connected between the main frame and the slide frame. Lift arms are connected to the free end of the positioning frame for moving the frame between its raised and lowered positions, and a towing device is carried by the free end of the positioning frame. A retaining plate is secured to the rear of the vehicle and has a pair of rearwardly extending brackets secured thereto. A retaining lug is attached to one of the towing device and the free end of the positioning frame. The brackets and the retaining lug are provided with bores which are in alignment when the positioning frame is in the transport position for receiving a pin that transmits forces from the towing device directly to the vehicle.

Towing Arrangement

A remote actuating mechanism, in particular for actuating a control lever of a three-point implement hitch, has a transmission unit with a slide which is movable longitudinally by means of a swingable driver. The driver can be held in an inoperative position and has a spring-loaded driving pin by means of which a positive connection can be obtained between the driver and the transmission unit in any position of the slide. The positive connection is possible, however, only in a single spatial relationship between the driver and the slide. In the inoperative position, the driver is separated from the slide and a lock is provided to prevent unintentional actuation.

Growing community of inventors

Hassloch, Germany

Werner Zahn