Deere + Company

Graham Thompson

Christian Von Holst

Werner Stettler

Reno Antonio Rodeghiero

Barbara Klabunde

Andrey Valeryevich Skotnikov

Milan Dimitrijevic

Christian Von Holst Dr

A work vehicle includes a front axle, a rear axle, a chassis, a cab pivotally coupled to the chassis, a boom movably mounted on the chassis, and a boom cylinder for raising and lowering the boom. A rear suspension member raises and lowers the cab with respect to the rear axle. A front suspension member raises and lowers the chassis and the cab with respect to the front axle. An operator controlled command unit generates boom raise and lower signals. An electronic control unit (ECU) is connected to the front suspension member, the rear suspension member and the command unit. If vehicle speed is below a threshold speed, the ECU automatically operates the front and/or the rear suspension members to raise and lower the cab to improve visibility of the loader from the cab in response to the command unit operating the boom.

Work vehicle with loader controlled cab tilting

A PTO transmission includes a split power transmission unit having an output member connected to a PTO shaft, a first input connected to an engine output shaft and a second input connected the output of a variable speed drive unit. A control unit controls the speed of the variable speed drive unit as a function of sensed engine speed and maintains the PTO shaft at a constant speed. The split power transmission is preferably a planetary gear unit. The variable speed drive unit preferably includes a variable displacement hydrostatic pump driving a fixed displacement hydrostatic motor which drives a sun gear of the planetary gear unit. This system transmits power to the PTO shaft from both the engine and from the variable speed drive unit. The control unit may also control the variable speed drive unit so that the speed of the PTO shaft is maintained at a desired ratio with respect to the ground speed, or so that the speed of the PTO shaft is maintained at a speed set by an operator.

Transmisson for power take-off

An agricultural or industrial utility vehicle includes a vehicle body, an operator's platform and a pivot assembly, by means of which the operator's platform can be pivoted on the utility vehicle about an essentially horizontal pivot axis. The pivot assembly includes at least two guide arms of differing lengths and/or extending in non-parallel directions. Each guide arm has one end which is coupled at a joint to the operators platform and another end which is coupled at another joint to the vehicle body. The connecting joint axes of the guide arms are essentially parallel to each other and are spaced apart from each other. Such a pivoted operator's platforms permits access for maintenance, repair or cleaning of vehicle components which are arranged under the operator's platform.

Pivot assembly for a vehicle cab

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Janesville, IA, United States of America

Graham Thompson