A device for opening trailer couplings

An opening device (1) for trailer couplings (2) comprises a rotating actuator (7) to be mounted to a box-shaped body (6) disposed on the support structure (3) of the trailer coupling (2). The actuator (7) can be operatively associated with an operating mechanism (19) of a hitching pin (5) to shift it from a work position in which it engages a cavity (4) formed in the support structure (3) to a released position in which it does not engage the cavity (4). An intermediate kinematic mechanism (12) is provided for transmission of the rotating movement from the actuator (7) to the pin (5) by a reduction member (13) disposed laterally of the box-shaped body (6) or embodied therein. A DEVICE FOR OPENING TRAILER COUPLINGS