| 摘要 |
The invention refers to a device at an agricultural machine (1) with a carrying framework (2), on which a centre section (12a) and on each side thereof folding wing sections (22, 23) are turnably assembled, whereby said centre and wing sections are provided with implements (47), such as cultivator tines or some other soil tillage tools, and at their rear edges carry wheel aggregates (15, 44), such as pack wheels, roller rings or the like, whereby control devices (20, 21) are arranged to raise and lower the wheel aggregates for adaptation of the working depth of said implement, whereby the said control devices (20, 21) are adapted to only raise or lower the wheel aggregate (15) of the centre section (12a) and that means (45, 51) are arranged on the wing sections (22, 23) to take up the movement of the centre section (12a) in the upward direction. |
