| 摘要 |
A rake includes a draw bar, anchored at the back to a cross bar ending with hinges having a rotation axis that is parallel to the draw bar. The cross bar is connected through the hinges with two arms, each one appropriate for sustaining the supporting elements of a group of ray rakes. The rake also includes supporting and regulating members for raising the cross bar from the ground and therefore the group of ray rakes, and actuator elements, independent from each other, through which the operator guides the movements of the supporting elements and those of the supporting and regulating members for raising the cross bar from the ground.
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