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US 6,672,044 B1Granted
Vibration unit
OwnerEitan Zehavi, David Chielinventors
Life of this patent
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Abstract
A vibration mechanism (300) for shaking a tree trunk held between two clamps, for an efficient harvest of the tree-fruits and for preventing damage to the tree-roots and to the tree trunk. The vibration unit comprises two counter-rotating rotors (R) weighted by displaceable weights (18, 19) and powered, preferably, by at least one hydraulic motor (M). A transmission (T) coupled to the motor and to the rotors, counter-rotates the rotors.
Claims19
A linear vibration generation mechanism for a tree trunk shaker comprising a pair of clamps for locking on the trunk on opposite sides thereof, the mechanism comprising:
- at least one motor for providing rotational motion at a predetermined controllable angular velocity,
- a pair of identical eccentric rotators coupled to the at least one motor, the pair of eccentric rotators rotating in parallel planes and at the same angular velocity, each one rotator comprising a rotator shaft,
- an enclosure for containing the mechanism, the enclosure being an integral part of one clamp out of the pair of clamps, and
- the at least one motor being a hydraulic motor of the gear-on-gear type, with each one gear being coupled to one out of the pair of identical eccentric rotators by the rotor shaft, wherein the at least one hydraulic motor serves for provision and for transmission of rotational and counter-rotating motion.
1 more element
Dependencies are inferred from the claim text.