초록 ▼

In the disclosure document DE-OS No. 31 49 700 the theory is put forward that the effective point of attachment of a trailer opposite the towing vehicle can be transferred in the direction of the center of gravity of the towing vehicle. The invention concerns itself with the actual possibility of th

In the disclosure document DE-OS No. 31 49 700 the theory is put forward that the effective point of attachment of a trailer opposite the towing vehicle can be transferred in the direction of the center of gravity of the towing vehicle. The invention concerns itself with the actual possibility of the transfer while taking structural conditions into consideration. In this respect, the invention shows that at least the joints located at the trailer are to be arranged at a lower level than the ball head of a normal trailer coupling. The distance in height should be considerable, for instance approximately 75 mm. The front joints are located at a cross member, said joints being pivoted around a longitudinal axis in a coupling housing which is fixed rigidly at the ball head of the trailer coupling and thus is immovable.

대표청구항 ▼

A coupling between a towing vehicle and a trailer, comprising: a trailer hitch on said vehicle formed with a ball-shaped head; means forming a pair of vehicle pivots at a fixed distance from one another on said vehicle on opposite sides of a vertical median plane through said ball-shaped head; means

A coupling between a towing vehicle and a trailer, comprising: a trailer hitch on said vehicle formed with a ball-shaped head; means forming a pair of vehicle pivots at a fixed distance from one another on said vehicle on opposite sides of a vertical median plane through said ball-shaped head; means forming a pair of trailer pivots on said trailer at a fixed distance from one another on opposite sides of said plane, both of said pairs of pivots being located below said head; generally L-shaped rigid links on opposite sides of said plane, each respectively pivotally connecting one of said vehicle pivots and one of said trailer pivots, each of said links being angled away from said plane having a relatively long leg and a relatively short leg, the spacing between said vehicle pivots being less than the spacing between said trailer pivots; a respective ball joint between each of said vehicle pivots and the respective link; a common traverse supporting said vehicle pivots and formed with a socket for receiving said ball-shaped head and thereby mounting a four-bar linkage formed by said traverse, said pivots and said links on said hitch; and a support for said trailer pivots locating said trailer pivots below said head, said short legs being formed with lugs swingably connecting them to the respective trailer pivot.