Trailer coupling
DRIVE
October 12, 2005
A coupling arm (9) supports a head piece on one end fitted proud to fasten a detachable trailer and links firmly on the other end to an adapter (10) moving on bearings in a casing (1). A hinge pin (12) on the coupling arm on one end opposite the ball has a partly cylindrical part and a partly cuboid body, the sides of which run at a tangent into the partly cylindrical part.
Discussion in the ATmosphere