Harvesters – Vegetable gatherer – Asparagus havester
Patent
1975-05-28
1977-11-29
Kinsey, Russell R.
Harvesters
Vegetable gatherer
Asparagus havester
171 58, A01D 4500
Patent
active
040599434
ABSTRACT:
A harvesting machine is disclosed which is especially adapted to harvesting asparagus; however, it is effective for a variety of objects such as apples, nuts or golf balls. The harvester, which may be pushed, pulled or self-propelled, includes a rigid outer frame supported on ground engaging support wheels which are positioned to travel adjacent the asparagus rows or the like. A rigid picking head frame is pivoted from the extreme rear of the outer frame so that rough ground will not cause extreme up and down movement of a picking head which is adjacent the forward end of the outer frame. Ground engaging drive wheels mounted on the picking head frame are also positioned to travel adjacent the asparagus rows or the like and provide a drive for the picking head which includes pairs of a parallel spaced apart flexible elastomeric discs having protrusions on the radial surfaces thereof. The flexible discs are fixed to a rotary shaft which is mounted perpendicular to the direction of travel of the harvester and parallel to the ground and is driven by the ground engaging drive wheels. The shaft and discs are driven by the ground engaging drive wheels at peripheral speeds other than the ground speed of the harvester. Wedge shaped elemens fixed to the picking head frame force adjacent flexible discs into contact with one another in a picking zone. A conveyor driven by a ground engaging wheel receives and elevates the asparagus which has been guided between adjacent discs and broken off as a result of the speed of the discs, the force of the wedges holding the discs together and the protrusions on the radial faces of the adjacent discs.
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