Fecha de publicación: 25/05/1993 Fuente: WIPO "honey" ABSTRACT A mounting structure for attaching an elongated swather head to a tractor of the bi-directional type, the structure mounting the head in front of the tractor in a swathing direction of travel and accommodating swinging movement of the head to a trailing transport mode behind the tractor when traveling in a direction opposite to the swathing direction. The mounting structure is carried by the tractor which, in the operational mode of the swather, is disposed to one side of the centre-line of the swather head. The mounting structure includes members for securement to the tractor and an elongated support member projecting transversely across the front of the tractor to the side of the tractor opposite to the centre-line of the swather head. The head has a rear frame member which extends parallel to the head behind an intermediate portion thereof and is carried at one end by a hinge connection to the support member at the side of the tractor opposite to the centre-line of the swather head. The hinge connection permits pivoting of the frame member of the swather head about a substantially vertical axis for accommodating the swinging movement of the swather head to a trailing transport mode. A lock is associated with the frame and support members for selectively holding the frame member against the swinging movement when used in the swathing operation. The mounting structure allows use of a swather head on a bi-directional tractor which may be of the centre articulated type, so that when moving in one direction, normal swathing is carried out, but the swather can assume a trailing travel mode when the tractor is driven in the opposite direction, thus allowing the machine to occupy considerably less width. Also because the tractor is not centrally disposed behind the swather head, the swather can be designed to lay a windrow at a distance from the end of the swather and yet in a position which will avoid being disturbed by the tractor.