Patent ID: 6227305
Filing Date: 2001-05-08
Classification: A01B

Abstract:
A lower steering arm assembly for an attaching device of a tractor, comprising:a strut formed from a flat material;said strut having two narrow faces, two side faces, a first end enabling pivotable attachment to the tractor, and a second end;an attaching end enabling connection with an implement, said attaching end is removably secured to the second end, in the released condition, said attaching end is movable relative to the second end of the strut and enables a pivot movement in the extracted condition, locking means including a recess in a side face of the strut towards the second end, said recess having a blocking face;a blocking pawl associated with the attaching end, said blocking pawl engaging the recess and pivotably held in a pocket of the attaching end;a locking face cooperating with the blocking face;a spring loading the blocking pawl to enable the blocking pawl to assume the engaged position; andactuating means for disengaging said blocking pawl from the recess, the recess is truncated cone-shaped and the blocking pawl pivotable around a pivot axis intersecting the longitudinal axis at a distance at a right angle comprises a locking face adapted to the inner side face of the recess, said inner side face serves as the blocking face, said attaching end including two parts non-removably connected to one another forming a chamber which is open on one end for receiving the second end of the strut, a first part being a base member including said pocket for receiving the blocking pawl and the end for being connected to an implement and the second part being a cover which is provided with a stop face cooperating with an end face at the second end of the strut.