Trailer provided with a movable coupling beam

The present invention, according to a first aspect thereof, relates to a drawn transport vehicle comprising a chassis (2) with at least one wheel axle, a gooseneck (4) for coupling the vehicle to be drawn to a drawing vehicle, and a coupling beam (5). The gooseneck (4) and/or the coupling (5) beam is/are provided with means of attachment for detachably attaching the coupling beam (5) to the gooseneck (4) at at least a first position and a second position different from the first position. Guide means (8,9) are provided which are designed to make it possible for a single person to move the coupling beam manually over the gooseneck between said at least first and second position. The invention further relates to a coupling beam (5) provided with means of attachment for detachably attaching the coupling beam to a gooseneck of a drawn transport vehicle, which coupling beam comprises a connecting beam (10), to either side of which a means of attachment is fixed, which means of attachment is designed for attaching the coupling beam (5) to a gooseneck of a transport vehicle. The underside of the connecting beam and the facing inner sides of the means of attachment together surround an at least substantially free U-shaped space, at least in a situation in which the coupling beam and the gooseneck are not locked together.