Abstract

Abstract An experimental model strawberry harvester with a series of counter-rotating coneshaped vinyl tips for fruit pickup and removal showed potential for rapid harvesting with reduced injury. Flexible auger-like tips on steel shafts were fabricated by molding and heat curing liquid vinyl around the shafts. Tips were molded in pairs with oppositely twisted ribs to provide upward and backward lift to the fruit. Fruit detachment was achieved with a pinching and snapping action of the screw-like ribbed tips counter-rotating in an upward pattern. A soft nylon bristle brush mounted above the picker tips was found unsatisfactory for pushing detached fruit backward onto a transport belt

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