safety device for the connection of trailers and on connection for connecting a vehicle, in particular a motor vehicle, a trailer

摘要

The invention concerns a safety device (1, 2, 102) to couple trailers which comprises a plate (2; 102) which, in turn, comprises a first plate sector (4; 104), preferably circular, and an elongated second plate sector (6; 106) connected thereto. The first plate sector (4; 104) is provided with a first hole (8; 108) for passing the ball (34) of a ball-type tow hitch (32) and wherein the elongated second plate sector (6; 106) is provided with at least a first slot (110) or with at least a pair of first slots (10a, 10b) extending with their length in the length direction of said second plate sector (6; 106). In a variant of the invention, the device further comprises a U-profile (12) wherein the bottom (14) of the profile (12) comprises at least a second hole (18) and at least a second slot (20) and wherein each opposite side wall (16) comprises at least one or two third slots (22) whose longitudinal axis/es extend/s essentially parallel to the bottom (14) of the U-profile (12), and, in the case of at least two slots (22) in a wall (16), their longitudinal axes extend along the same straight line and wherein the third slots (22) located on different walls (16) are in pairs aligned to each other. The invention also relates to a relative connection to connect a vehicle, in particular a car, to a trailer.