A - Human Necessities – 01 – D
Patent
A - Human Necessities
01
D
A01D 47/00 (2006.01) A01B 61/00 (2006.01) A01B 61/02 (2006.01) A01D 75/18 (2006.01)
Patent
CA 2406416
A crop harvesting machine includes a crop harvesting header mounted on a transport vehicle for carrying the header across the ground with at least one upper connecting link extending from the vehicle frame to an upper frame member and two support arms each extending from a front end at the header to a rear end pivotally mounted on the vehicle frame and arranged at a height below the upper link. Each support arm has a respective float spring connected thereto at a pivot thereon forwardly of the rear end and extending therefrom to the vehicle frame for applying a lifting force on the support arm. Each support arm has a pivot connection at the rear end defined by a pivotal link connected at a forward end to the frame by a resilient bushing and at a rear end by a similar bushing to the rear end of the support arm. The pivotal link is inclined upwardly and rearwardly in the normal operating position and thus pivots downwardly and rearwardly on an impact so as to absorb the impact on the crop cutter and tending to cause pivotal movement of the support arm relative to the pivot connection to the float spring to effect lifting movement of the cutter relative to the ground.
Dunn James Thomas
Snider Geoffrey U.
Ade & Company
Macdon Industries Ltd.
LandOfFree
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