Row cleaner suspension

Details Row cleaner suspension Row cleaner suspension

A - Human Necessities

01

B

A01B 63/24 (2006.01) A01B 71/02 (2006.01) A01C 7/00 (2006.01) A01C 7/20 (2006.01)

Patent

CA 2298025

A row cleaner device for a furrow forming row unit includes a support arrangement with a parallel linkage having a single acting hydraulic cylinder connected between upper and lower links. The cylinder extension is controlled by a hydraulic circuit to provide adjustable down pressure to maintain consistent operation of the cleaner devices in varying ground conditions. A tensioning device such as a spring extending generally parallel to the cylinder acts to retract the cylinder. A blocking valve can be closed to maintain the cleaner device in the raised position and can lock the cylinder in any desired extended position. An energy storage device such as a spring compressed between the cylinder and one of the links permits limited vertical movement of the linkage without change of cylinder extension to protect the device and accommodate obstacles and ground surface irregularities in the path when the cylinder is locked in position. The cylinder can be controlled as a function of the position of the opener, and, can be controlled to raise the cleaner device automatically with raising of the row units. The row cleaner can be supported in various positions and can be controlled remotely. The cleaner can be conveniently raised to the non- operating position to avoid undesirable ground contact.

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