Kuhn S.a.

Martin Walch

Bernard Wattron

Rino Ermacora

Joel Wilhelm

Michel Wolff

Philippe Mayeur

Roland Helfer

Cedric Halter

Rene Walter

Alain Guesdon

Jo&euml;l Wilhelm

Pierre Fischbach

René Walter

Cédric M Halter

An agricultural machine including a connecting structure designed to be hitched to a tractor, the connecting structure including a coupling support, a carrier beam and a transmission unit; the transmission unit including a driving pulley, a driven pulley, a transmission element drive-mounted on the driving and driven pulleys, the transmission unit including a transmission element tensioning system; a work unit articulated to the carrier beam via at least one folding axis, the work unit being fitted with at least one work tool, which is driven in rotation. In this machine, the tensioning system applies an unfolding force to the work unit during at least one part of the deployment from a transport position.

Cutting machine including an improved unfolding mechanism

An agricultural machine comprising a connecting structure designed to be laterally mounted to a tractor, the connecting structure including a coupling support, a carrier beam and a transmission unit; the transmission unit including a driving pulley, a driven pulley, a transmission element drive-mounted on the driving and driven pulleys; a work unit articulated to the carrier beam via at least one folding axis, the work unit being fitted with at least one work tool configured to be driven in rotation from the transmission unit. In this machine, the folding axis and the rotation axis of the driven pulley are separate from each other.

Cutting machine including an improved articulation mechanism

An agricultural machine includes a cutting mechanism and first and second conditioning elements driven by a transmission comprising a primary box including a first output connected to the cutting mechanism, a second output connected to the first conditioning element and a third output, connected with one another by primary transmission means, the transmission including a secondary box including an input connected to the third output and an output connected to the second conditioning element, connected with one another by secondary transmission means, the transmission comprising a lubrication device for the primary box with a pump and a primary distribution system for a lubricant towards the primary transmission means. The lubrication device comprises a secondary distribution system distributing the lubricant from the pump towards the secondary transmission means, and a return system for the lubricant from the secondary box towards the pump.

Harvesting machine comprising an improved lubrication device

A harvesting machine includes a frame carrying at least one harvesting mechanism and a lightening device of the harvesting mechanism. The lightening device includes second hydraulic jacks articulated on the frame and on the harvesting mechanism and connected by hydraulic circuits to first hydraulic jacks so as to be able to be actuated by the first hydraulic jacks and to hydropneumatic accumulators.

Harvesting machine with a lightening device

A mower-conditioner including a plant mowing mechanism including a cutting device, a plant conditioning system and a mechanism lifting these elements relative to the ground, this assembly being carried by a frame and including a fairing, the machine also including a plant ejection channel positioned as an extension of the plant conditioning system. The fairing is articulated to the plant ejection channel by a transverse axis that is positioned inside the machine, above and slightly behind the plant conditioning system, and the plant ejection channel is itself articulated to the frame.

Plant mower-conditioner comprising a device for uniformly distributing plants thrown back to the ground

A mower comprising a chassis carrying at least one harvesting mechanism and a lightening device of the at least one harvesting mechanism. The lightening device includes at least one torsion bar which is connected to a transverse beam of the chassis and which carries a lever on one of the ends of which a rod is articulated which is directed towards the harvesting mechanism and which is itself articulated on the harvesting mechanism or its suspension device.

Mower with an lightening device including torsion bars

A haymaking machine hitched to a tractor, including a frame carrying a cutting mechanism having cutting tools and a carrying structure intended to support a protective device, said protective device including one central protector articulated on said carrying structure by means of one connecting rod.

Haymaking machine with a central protector

A mower includes a support structure on which are articulated about substantially horizontal axes at least two mowing units each including a frame carrying at least one cutterbar and one conveyor belt, which mowing units can be moved about the axes from a working position to a transport position. The conveyor belts are articulated relative to the cutterbars about conveyor belt axes and the mower further includes a mechanism for automatically moving the conveyor belts about their axes of articulation to bring them closer to the carrier frames and consequently to the middle of the mower when placed in the transport position.

Mower with foldable mowing units

A haymaking machine, particularly a mower of plant matter with a grouping device allowing the plant matter cut in two passes to be grouped together into a double windrow or alternatively a single windrow to be formed. The grouping device is made of a first member for moving the plant matter toward the rear side of the machine and of a second member for moving the plant matter toward a side, the second moving member being mounted on a support in such a way that it can be moved closer to or away from the first moving member for forming a double windrow or a single windrow.

Haymaking machine, particularly a mower with a windrow grouping device

A machine for harvesting forage including in particular a cutting mechanism and a device for treating the cut products. The treatment device includes at least two ribbed rollers which are driven in rotation by a transmission. The transmission includes at least one flexible element which collaborates with a driving member and driven members which are mounted on shafts which drive the rotation of the rollers. At least one of the driven members is mounted on its shaft by a freewheel configured to transmit rotational movement from the driven member to the shaft in just one direction.

Harvesting machine with freewheel compensation

The mower of the present invention comprises a frame, a cutting mechanism supported by the frame, and a windrow grouping mechanism. In turn, the windrow grouping mechanism comprises a longitudinal conveying device and a transverse conveying device. The mower of the present invention is notable in that the longitudinal conveying device comprises at least one roller, the longitudinal axis of which is substantially perpendicular to a direction of forward travel of the mower. The roller is driven in rotation about the longitudinal axis so that its surface transports a product, cut by the cutting mechanism, toward the rear of the mower.

Mower comprising a windrow grouping mechanism

A cutting device for a cutting machine including a driver driven by a drive shaft, a support structure secured to the driver and at least one drive device intended to drive a cut product toward the rear of the cutting machine. The drive device includes at least two drive walls which extend approximately right around the support structure and which are fixed removably to the support structure by assembly elements.

Cutting device for a cutting machine

A cutting machine comprising a chassis connected to a motor vehicle, a cutting device comprising cutting members, a connecting device connecting the cutting device to the chassis in such a way as to allow the cutting device to be brought into a work position and into a transport position and comprising at least two connecting rods each one connected to the cutting device and to the chassis by means of a respective connection, one of the connections being a connection of the ball-joint type. The cutting machine is characterized in that at least one of the connections connecting a connecting rod to the cutting device or to the chassis comprises an elastic element.

Cutting machine comprising a cutting device connected to a chassis by means of an improved connecting device

A device and an agricultural machine which employ a method for the mounting/disassembly and automatic tension adjustment of at least one endless transmission member. The device for the mounting/disassembly and automatic tension adjustment of the endless transmission member is fitted in such a way that an action generated by a spiral spring acts on a second bearing with a lever arm with respect to a geometric axis of an articulation connecting the second bearing to a bearing structure which increases once the spiral spring relaxes.

Belt tensioner

A treatment device for treating cut fodder includes a treatment rotor, first and second supports, and a driving device for driving the treatment rotor. The first support of the treatment device is located near a first end of the treatment rotor. The first support includes a first bearing in which the first end of the treatment rotor is guided in its rotation. The driving device includes a transmission device. The transmission device includes a first and second wheels, at least one endless transmission member, and a regulating or adjusting mechanism for regulating or adjusting the tension in the at least one endless transmission member. The second wheel of the transmission device is mounted on the first end of the treatment rotor. The at least one endless transmission member is wound around both the first and second wheels of the transmission device. The treatment device for treating cut fodder is characterized in that the regulating or adjusting mechanism for adjusting the tension in the endless transmission member includes the first bearing of the first support of the treatment device and the second wheel of the transmission device such that both the first bearing and the second wheel can be moved away from the first wheel of the transmission device in order to arrive at a desired position of adjustment. The regulating or adjusting mechanism also includes a retaining device for retaining the first bearing and the second wheel in the desired position of adjustment. The retaining device includes a tensioning member.

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Dettwiller, France

Martin Walch