Patent ID: 6672044
Filing Date: 2004-01-06
Classification: A01D

Abstract:
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.