Abstract: An upper link for a utility vehicle, in particular for an agricultural tractor having a hydraulic cylinder (34) for adjusting the upper link (32) and at least one fluid tank (36), to which the hydraulic cylinder (34) can be coupled, so that in a coupled condition, hydraulic fluid limited to a pre-determined volume can be exchanged between the hydraulic cylinder (34) and the fluid tank (36), and so that a piston (40) of the hydraulic cylinder (34) can move in floating fashion by a distance (ls) corresponding to the pre-determined volume in the hydraulic cylinder (34). The present invention further includes a front-end as well as to a back-end three-point hitch of a utility vehicle with two pivotally connected lower links and an upper link with such a fluid tank.

Abstract: A trailer coupling for tractive vehicles, in particular agricultural tractors, consisting of two vertical guidance cheeks (7), fitted with lateral spacing to the rear of the vehicle, the guidance cheeks including vertical slots (7a) and a bearing member (11) held detachably at the lower end region of the guidance cheeks, on which a coupling member (12) is arranged for attaching an implement. In the case of a prior art trailer coupling, all forces transmitted from the attached implement to the coupling member used, a ball coupling (12) for example, are conducted via the bearing member (11) into the guidance cheeks (7). Thus this involves the undesirable necessity of having to dimension the guidance cheeks in a robust manner, which in turn leads to space problems within the tail end region of the vehicle. Therefore a trailer coupling is to be created which reduces the load on the guidance cheeks (7), when the forces of the attached implement are conducted into the rear of the vehicle.

Abstract: The present invention relates to an upper link (32) for a utility vehicle, in particular for an agricultural tractor. The upper link (32) has a hydraulic cylinder (34) for adjusting the upper link (32). Furthermore at least one fluid tank (36), to which the hydraulic cylinder (34) can be coupled, is provided so that in the coupled condition hydraulic fluid limited to a pre-determined volume can be exchanged between the hydraulic cylinder (34) and the fluid tank (36) and so that a piston (40) of the hydraulic cylinder (34) can move in floating fashion by a distance (ls) corresponding to the pre-determined volume in the hydraulic cylinder (34). Furthermore the present invention relates to a front-end as well as to a back-end three-point hitch of a utility vehicle with two pivotally connected lower links and an upper link with such a fluid tank.

Abstract: A trailer coupling for tractive vehicles, in particular agricultural tractors, consisting of two vertical guidance cheeks (7), fitted with lateral spacing to the rear of the vehicle, the guidance cheeks including vertical slots (7a) and a bearing member (11) held detachably at the lower end region of the guidance cheeks, on which a coupling member (12) is arranged for attaching an implement. In the case of a prior art trailer coupling, all forces transmitted from the attached implement to the coupling member used, a ball coupling (12) for example, are conducted via the bearing member (11) into the guidance cheeks (7). Thus this involves the undesirable necessity of having to dimension the guidance cheeks in a robust manner, which in turn leads to space problems within the tailend region of the vehicle. Therefore a trailer coupling is to be created which reduces the load on the guidance cheeks (7), when the forces of the attached implement are conducted into the rear of the vehicle.

Abstract: An implement mounting device for the front of a utility vehicle such as an agricultural tractor, the device having the two transversely spaced lift arms (2,3) having coupling hooks (6) at their outer ends and being connected at their inner ends to a cross shaft (1a) which is pivotally mounted on a frame of the vehicle. The liftarms are rotatable vertically relative to the frame by a piston and cylinder assembly (4).

Abstract: A holder carried on an agricultural tractor for holding implement coupling balls (1,2). The holder has a rear wall (3), two side walls (4), a base (5) and an open upper end through which the balls may be inserted into the holder. The side walls (4) are shaped (4b) to retain the balls (1,2) within the holder with the inside surfaces of the side walls in contact with portions of the spherical surfaces of the balls which face away from the rear wall (3), and bias means (8) are provided for biasing the balls (1,2) into contact with the inside surfaces of the side walls. An adaptor element (10) may be provided for partially enclosing a ball of a smaller category than the holder was designed to hold, the adaptor element being positioned between the smaller category ball and the side walls (4) so that the smaller ball and adaptor element together occupy a similar volume to the volume occupied by a ball of the category which the holder was designed to hold.