Improvements introduced in compound articulated vehicles, of the type of tractor and trailer, characterized in that the front ends of a pair of arms of a tow bar are attached to the axle or the axle box of the tractor, while the rear ends of the arms converge and incorporate a housing provided with bores that form a right angle to each other, and a front central extension of the trailer frame is provided with a bifurcated end and a pair of vertical bores or bearings, such that the The tow bar and the extension of the trailer frame can be connected to one another by means of one or more studs inserted in said vertical bores and in the one or more matching bores of the box, and by means of two more studs, inserted in the remaining bores of said box. accommodation, in alignment with the longitudinal axis or central line of the tractor. (Machine-translation by Google Translate, not legally binding)
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