| 摘要 |
<p>A connection device for connecting a three-point attachment of a tractor, of the type in which the upper arm is formed by a hydraulic or pneumatic cylinder (9), to the implements (13) towed by the tractor (10), comprises a first substantially V-shaped frame hinged at its apexes to the arms of the three-point attachment of the tractor, and a second frame, substantially V-shaped as well, rigidly connected to the framework of the implement; the rod of the piston (9) is hinged directly to the first frame in a position in register with its apex where means for hooking and lifting the implement (13) are provided which are arranged to cooperate with corresponding means of the second frame; there are also provided means for hooking the first frame which are formed in register with the hinging points thereon of the lower arms of the three-point attachment, said means being arranged to cooperate with corresponding means of the second frame at the moment of termination of the implement hooking and lifting stage in order to rigidly connect said frames to one another.</p> |
