A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
A01B 59/043 (2006.01) A01B 59/041 (2006.01) A01B 59/06 (2006.01)
Patent
CA 2181434
The present invention relates to an actuator device for aiding the hitching of an implement (1) to the three- point linkage of a tractor (2) or similar pulling vehicle. According to the invention, the actuator device comprises a double-acting hydraulic cylinder (5), which is mountable between two pulling links (3) of the tractor's three-point linkage for controlled adjustment of the mutual distance between the pulling links (3), and said hydraulic cylinder (5) is connectable to a two-way directional control valve bank (4) of the hydraulic system of the tractor. To avoid mechanical overload of the pulling links (3), the cylinder (5) is manufactured with a piston clearance providing an internal bypass flow path.
Dispositif actuateur facilitant l'attelage d'un outil (1) au système d'attelage trois points d'un tracteur (2) ou d'un véhicule analogue. Ce dispositif actuateur comporte un vérin hydraulique à double effet (5) monté entre deux bielles (3) du système d'attelage trois points du tracteur, et destiné à régler la distance comprise entre les bielles de traction (3), ledit vérin hydraulique (5) étant raccordé à un groupe de vannes de distribution à deux voies (4) du système hydraulique du tracteur. Dans le but d'éviter toute surcharge mécanique des bielles de traction (3), le piston du vérin (5) est installé avec un certain jeu radial formant un passage interne de dérivation.
Iitin Kymppikoneistus Oy
Mccarthy Tetrault Llp
LandOfFree
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