Fruit harvesting device

5946896
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Inventors

Daniels, Michael Allen

Application #

012811

Filed

Jan-23-1998

Published

Sep-7-1999

Current US Class

056/328.1
056/329
056/330
056/340.1

International Classes

A01D 046/26

Field of Search

56/328.1 56/329 56/330 56/331 56/340.1

Examiners

Shackelford; H.

Attorney, Agent or Firm

Fisher, III; A. W.

US Patent References

4383400   Method and appar...
4418521   Harvester with sele...
5074107   Blueberry harvestin...

Referenced by:

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Citation

Cite This Patent

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Abstract
A fruit harvester comprising a plurality of oscillating fruit removal heads to selectively engage and vibrate the periphery of selected fruit-bearing sections of a fruit tree canopy thereby causing the fruit to break away from the fruit tree canopy wherein the oscillating fruit removal heads are pivotally coupled to an articulated telescoping boom mounted on a self propelled chassis including a plurality of fruit collection aprons and an internal fruit storage bin such that manipulation of the articulated telescoping boom permits engagement of isolated areas of the outer peripheral fruit-bearing sections of the fruit tree canopy by the oscillating fruit removal heads, each oscillating fruit removal head comprising a plurality of agitation wands rotatably and eccentrically coupled to a drive shaft of a motor such that rotation of the drive shaft is translated into lateral orbital motion of the oscillating fruit removal heads and a corresponding periodic motion of the isolated area of the peripheral fruit-bearing section of the fruit tree canopy with the orbital direction of the oscillating fruit removal heads in opposition to one another and the orbital radius and frequency of the oscillating fruit removal heads is modulated such that vibrations of the peripheral sections of the fruit tree canopy dampen or cancel one each other whereby the harmonic vibration between the peripheral fruit-bearing sections of the fruit tree and trunk is reduced as fruit is removed from the fruit tree canopy.
 
Claims
What is claimed is:

1. A fruit harvester comprising a fruit removal assembly including at least one pair of oscillating fruit removal heads to selectively engage and vibrate isolated areas of the peripheral fruit-bearing section of a fruit tree canopy thereby causing the fruit to break away from the fruit tree canopy, each said oscillating fruit removal heads comprising a plurality of agitation wands rotatively and eccentrically coupled to a drive shaft of a motor mounted on said fruit removal assembly such that rotation of a drive shaft is translated into the orbital motion of said oscillating fruit removal heads and a corresponding periodic motion of an isolated area of the peripheral fruit-bearing section of the fruit tree canopy wherein the orbital motion of said oscillating fruit removal heads is within a vertical or near vertical plane such that the distal ends of said agitation wands remain at a substantially constant distance from the trunk of the fruit tree.



Description
BACKGROUND OF THE INVENTION

1. Field of the Invention

A fruit harvester comprising a plurality of oscillating fruit removal heads to selectively engage and vibrate the periphery of selected fruit-bearing sections of a fruit tree canopy thereby causing the fruit to break away from the fruit tree canopy.

2. Description of the Prior Art

Different approaches have been made in recent years to develop a harvesting machine that will rapidly and efficiently remove fruit from a tree without undue damage to the tree or immature fruit and blooms on the tree. Unfortunately no approach has been entirely successful. While it has appeared that shaking the tree is the most natural method, apparatus entering the tree to shake it at the trunk is known to cause damage to the root system of the tree, with possible loss of tree longevity and a reduction of fruit bearing. Other methods of trying to "auger" the fruit off the branches have broken limbs and caused excessive leaf damage/removal, as well as lost immature fruit and blossoms. "Shiners", or ripe fruit remaining on the tree, appear to be excessive and must be picked by hand.
 
  A harvesting apparatus for dislodging produce from trees comprising a support structure, a boom vertically placed where a first end is connected to the...  A fruit harvesting machine employs a rotating pneumatic cylinder and a spaced picking plate between which the fruits pass to be turned and snapped off....