Deere + Company

J&ouml;rg Weissig

Stefan Bohrer

Bernd Kempf

Klaus Ernst Becker

A crop harvesting machine includes a crop transport or feed mechanism including a feed roller to which a toothed wheel is fixed. A detent in the form of a pivotally mounted lever carries a cam or tooth, the detent being pivotable between a first position wherein the cam is engaged with the toothed wheel so as to block rotation of the feed roller, and a second position wherein the cam is disengaged from the toothed wheel so as to permit free rotation of the crop feed roller. A one-way hydraulic cylinder is coupled to the detent in parallel with a tension coil spring and is controlled by a solenoid control valve, coupled in a control circuit forming part of a metal detector circuit, so as to be pressurized for moving the detent to its first, blocking position when the metal detector sensor senses an undesirable metal object in the crop, and so as to be coupled to sump so that the spring moves the detent to its second position, permitting rotation of the crop feel roller, when no metal is detected.

Stopping device for a crop transport mechanism

The invention concerns a drive arrangement of a crop conveying and/or processing mechanism of a harvesting machine with an internal combustion engine (,) that is arranged to drive the crop conveying and/or processing mechanism through power transmission elements in a first operating mode in a first direction at a first speed, and a reversible motor (,) that is arranged to drive the crop conveying and/or processing mechanism in a second operating mode at a second speed in a second direction that differs from the first direction. The drive arrangement is also able to be driven in one or both of third and fourth operating modes. In the third operating mode the reversible motor (,) drives the crop conveying and/or processing mechanism in the first direction at a third speed, that is lower than the first speed and in the fourth operating mode the drive of the crop conveying and/or processing mechanism is separated from the internal combustion engine (,) and the reversible motor (,) operates as a brake for the crop conveying and/or processing mechanism.

Growing community of inventors

Saarbrücken, Germany

Jörg Weissig

Growing community of inventors

Saarbrücken, Germany

J&ouml;rg Weissig

Jörg Weissig