Patent ID: 6959531
Filing Date: 2005-11-01
Classification: A01D

Abstract:
1. An adjustable tracked side-delivery hay rake movable between a working and a transport position, characterized in: a transversal element; a right lower support sliding with respect to said transversal element; means for blocking the sliding between said right lower support and said transversal element; a right rotary head and an appendix applied to said right rotary head; a right arm having a first end that may be connected to said right rotary head, and a second end; a plurality of right wheels of the hay rake that may be applied in rotable manner to said second end of said right arm; a right intermediate element connected to the lower right support in a manner rotatable around a first rotation axis, and connected to the right rotary head in rotatable manner around the first rotation axis and connected to the right rotary head in rotable manner around a second rotation axis, said first and second rotation axis being perpendicular to each other, and that forms between the right rotary head and the right lower support a universal joint that allows the right rotary head to perform movements in all directions; a first lever having a first end fixed to said right intermediate element, and a second end; means for blocking the rotation movements of said right intermediate element with respect to the right lower support; a left lower support sliding with respect to the transversal element; means for blocking the sliding between the left lower support and the transversal element; a left arm having a first end that may be connected to said left rotary head, and a second end; a plurality of left wheels of the hay rake that may be applied in rotatable manner to said second end of said left arm; a left intermediate element connected to the left lower support in rotatable manner around a third rotation axis, and connected with the left rotary head in rotatable manner around a fourth rotation axis, whereby said third and fourth rotation axis are perpendicular one to the other, so as to form between the left rotary head and the left lower support a universal joint allowing said left rotary head to move in any direction; a second lever having a first end fixed to the left intermediate element, and a second end; means for blocking the rotation elements of the left intermediate element with respect to the left lower support; a left connection rod with a first end that may be connected in rotatable manner to the appendix of the left rotary head, and a second end that may be connected in rotatable manner to the left lower support; a double effect hydraulic cylinder for distancing and bringing nearer the second end of the first lever and the second end of the second lever.