Corn head attachment with sweeper device

摘要

A corn head attachment has a sweeper device extending across a working width of the corn head attachment. The sweeper device is attached to the attachment frame by support arms pivotable about a first pivot. The sweeper device position relative to the frame is adjustable by a longitudinal adjusting device parallel to the travel direction and height-adjustable about the first pivots. The adjusting device moves the sweeper device along a curved path in a first direction away from a first position, in which a rotary axle of the sweeper device is at a leading area of a harvesting slot, into a second position above a rearward area of the harvesting slot and also moves the sweeper device in opposite direction. The adjustment of the sweeper device along the curved path is controlled by a forced guiding action to avoid collision of the sweeper device with other corn head attachment components.

主权项

1. A corn head attachment comprising:
a frame; a rotatably drivable sweeper device that extends in a transverse direction of the corn head attachment transversely across a working width of the corn head attachment and is attached to the frame by at least two support arms that are pivotable about a first pivot, respectively; wherein a position of the sweeper device relative to the frame of corn head attachment is adjustable by a longitudinal adjusting device parallel to a forward travel direction and is height-adjustable about the first pivots; wherein the longitudinal adjusting device is motor-actuatable; wherein the longitudinal adjusting device is adapted to move the sweeper device along a curved path in a first direction away from a first position, in which a rotary axle of the sweeper device, viewed in the forward travel direction, is positioned in front of or above a leading area of a harvesting slot of the corn head attachment, into a second position that is located above a rearward area of the harvesting slot; wherein the longitudinal adjusting device is adapted to move the sweeper device in a second direction that is opposite to the first direction; wherein an adjustment movement of the sweeper device along the curved path is controlled by a forced guiding action such that the sweeper device cannot collide with components of the corn head attachment during the adjustment movement.