SHAKING DEVICE FOR HARVESTING SMALL FRUIT

WIPO Patent Application WO/2014/040961

A3

A shaking device (100) for harvesting small fruit comprising: a holding rod(101); at least one support body (105) movably connected to the holding rod; a plurality of sticks (110) having an end connected to the support body. A means for causing an alternated movement to the support body with respect to the holding rod is provided, the alternated movement causing a corresponding integral alternated movement to the sticks (110), and the alternated movement having a predetermined frequency. The sticks (110) are arranged as resonating members having a predetermined first natural resonant frequency and the said actuation means is configured to cause said alternated movement to have a frequency set between 45% and 98% of said first natural resonant frequency of said flexible sticks, in order to cause said flexible sticks to oscillate at an enhanced amplitude that is at least 1,5 to 10 times larger than the amplitude of the oscillation received from said actuation means. The sticks can be made of a flexible material having a predetermined elasticity modulus and have a cross section with a predetermined moment of inertia such that if they are moved with an alternated movement set preferably between 500 and 2000, preferably between 800 and 1220 cycles per minute, they vibrate with the enhanced amplitude.

BALESTRIERI RITA (CH)

PCT/EP2013/068648

July 24, 2014

September 09, 2013

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FUEGO INVEST & FINANCE CORP (GB)
BALESTRIERI RITA (CH)

A01D46/26

WO2007129207A2

2007-11-15

EP1116432A1	2001-07-18
DE1257476B	1967-12-28

CELESTINO, Marco (Pisa, IT)

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