Device for damping oscillations of a trailer

Device for damping lateral oscillations of a trailer having a first longitudinal axis hitched by its drawbar to a coupling mounted on the rear end of a motor vehicle having a second longitudinal axis comprising

• means mounted at least to the drawbar for positioning said coupling movable on said vehicle along a first line substantially perpendicular to the longitudinal axis of the vehicle in response to the magnitude of the angle between the first and second longitudinal axes such that, upon lateral oscillation of the trailer, the first longitudinal axis of the trailer intersects the second longitudinal axis of the vehicle at a point located at a position which is one of a first point at the intersection of the first line and the second longitudinal axis of the vehicle, and a second point located along the second longitudinal axis of the vehicle in the direction of forward vehicular travel with respect to said first point.

A device for reducing oscillations of a trailer having a drawbar of a predetermined length and attached by coupling means to a motor vehicle comprising

• means mounted at least to the drawbar for increasing the effective length of the drawbar to a value greater than said predetermined length by positioning the coupling means to position lateral with respect to longitudinal axis of the vehicle in a direction transverse to the direction of vehicle movement in response to the angle between a longitudinal axis of the vehicle and a longitudinal axis of the trailer and
• means movable around at least one of first and second points on opposite sides of said vehicle for connecting at least one of first and second points on opposite sides of the trailer to said coupling means.