KUHN S.A. Patent applications |
Patent application number | Title | Published |
20160053820 | TORQUE-LIMITING DEVICE AND FARM MACHINE USING SAME - A torque-limiting device for secure transmission of a rotation between an inlet baseplate and an outlet baseplate, including at least one drive bolt that forms a breaking element by shearing in case of a torque exceeding a predetermined threshold, and an intermediate baseplate that is driven by the inlet baseplate and driving the outlet baseplate. The bolt ensures driving of the intermediate baseplate and the inlet baseplate or the outlet baseplate. The intermediate baseplate includes a locking element by shape cooperation with a locking part of the bolt. The intermediate baseplate is formed by two plates pressed against one another, one of which is used for housing of the locking part of the bolt and the other of which is used for axial support of the locking part and housing of the screw rod. An agricultural machine can include such a device. | 02-25-2016 |
20160053819 | DEVICE FOR LIMITING TORQUE AND FARM MACHINE USING SAME - A torque-limiting device for secure transmission of a rotation between an inlet baseplate and an outlet baseplate, including at least one drive bolt that forms a breaking element by shearing in case of a torque exceeding a predetermined threshold, and an intermediate baseplate that is driven by the inlet baseplate and which in turn drives the outlet baseplate. The at least one bolt ensures driving of the intermediate baseplate and the inlet baseplate or the outlet baseplate. The intermediate baseplate includes at least one locking element by shape cooperation with a locking part of the bolt, and the torque-limiting device has a larger number of locking elements than of bolts. An agricultural machine can include such a torque-limiting device. | 02-25-2016 |
20160050839 | AGRICULTURAL MACHINE WITH AT LEAST ONE ARTICULATED SEEDER BAR - An agricultural machine having a trailed chassis and a transverse bar in several portions extending substantially transversely to the direction of advance in the work position and extending substantially parallel to the direction of advance in the transport position, the transverse bar includes two portions able to be folded around a first respective articulation with a substantially vertical axis, each portion supports a seeder device made up of a hopper and a seeder bar. Each seeder bar is fixed on the corresponding portion using a second articulation with a substantially horizontal axis oriented parallel to the direction of advance in the work position. | 02-25-2016 |
20150373898 | SINGLE-SEED SOWING MACHINE WITH AT LEAST ONE IMPROVED SOWING ELEMENT - A single-grain seeder including a chassis that supports at least one seeding element including a dispensing housing, at least one opening disk for opening a furrow in the ground, and at least one depth control wheel, the dispensing housing delivering seeds one by one via a rotary dosing element configured to turn about a rotation axis, each seed being ejected from the rotary dosing element at an ejection point extending in a lower portion of the rotary dosing element. The ejection point is disposed in an external diameter of the opening disk, when viewed along the rotation axis of the rotary dosing element. | 12-31-2015 |
20150351310 | HAYMAKING MACHINE WITH A COUPLING DEVICE COMPRISING AN IMPROVED RETURN DEVICE - A haymaking machine includes a chassis supported directly or indirectly on the ground by wheels and a working device connected to the chassis. The chassis includes a coupling device to which two hitching pieces are articulated each bearing a hitching pin for the hitching to the respective lower arms of a tractor. Each hitching piece cooperates with a respective return device. Each return device storing energy when the corresponding hitching pin moves, relative to the coupling device, upward from a first position. Each return device is able to release that energy to the corresponding hitching pin by returning the hitching pin toward the first position. Each return device stores energy when the corresponding hitching pin moves, relative to the coupling device, downward from a second position, and each return device can release that energy to the corresponding hitching pin by returning the hitching pin toward the second position. | 12-10-2015 |
20150296703 | DEVICE FOR A SELF-REGULATED PNEUMATIC SUPPLY WITH A MEANS FOR REGULATING THE AIR PASSAGE SECTION - A device for a self-regulated pneumatic supply from a main reservoir containing product toward at least one auxiliary reservoir according to its filling rate, the supply device including a compressed air supply, a tilted duct connected to pipe connections, a bypass air duct having a first channel emerging near the outlet of the main reservoir and a second channel emerging near the inlet of the pipe connections to bring product to the auxiliary reservoir. At least one of the channels includes a mean preset for adjusting a passage section of air passing through one of the channels. The device can be applied to a seeder including such a supply device. | 10-22-2015 |
20150296702 | DISTRIBUTION MACHINE WITH A DEVICE FOR REMOTELY SUPPLYING AT LEAST ONE AUXILIARY TANK COMPRISING AN AIR EXHAUST DEVICE - A distribution machine including a supply device for a self-regulated pneumatic supply from a main reservoir containing product toward at least one auxiliary reservoir according to its filling rate via a respective tight duct, each auxiliary reservoir including an air exhaust device and a distribution unit for distributing the product including a supply chamber and a rotary regulating element. The air exhaust device is configured to extend substantially below an overflow spot of the supply chamber. | 10-22-2015 |
20150282426 | FORAGE HARVESTING MACHINE WITH AN IMPROVED DEFLECTOR - An agricultural machine for forage harvesting, including a frame supporting a work unit able to occupy a work position in which it can pick up plants lying on the ground and shift them sideways, a side deflector being connected to the frame by a connecting device allowing the deflector to occupy an operation position relative to the work unit, in which the deflector can receive a flow of plants shifted sideways by the work unit. The connecting device is designed so that, while the machine moves in a direction and the work unit is in the work position, the deflector can perform a movement relative to the work unit from the operation position, longitudinally in a direction opposite the movement direction, when a resultant of a force exerted on the deflector exceeds a determined threshold. | 10-08-2015 |
20150216117 | METHOD FOR PRODUCING MARKING STRIPS USING AT LEAST TWO SEEDERS MOVING SIMULTANEOUSLY IN A FIELD - A method for producing marking strips using at least two seeders moving simultaneously in a field in which one seeder is a head seeder and at least one other seeder follows the head seeder being laterally offset, each seeder includes a control unit and plural rows that can respectively be activated for sowing or deactivated to produce tracks without seeds which will be used as a circulation lane for a treating apparatus in post-treatment operations. Each control unit includes a software program defining, with regard to fixed working parameters, an automatic operating program for activating or deactivating at least one of the rows of one of the seeders. | 08-06-2015 |
20150189831 | CUTTING MACHINE - A cutting machine with a chassis including a frame and a coupling support configured to be mounted on a three-point hitch of a tractor, and with an arm connected directly to the frame by a first articulation and extending, at least during work, laterally relative to the frame, the arm carrying a work element and configured, by a displacement device, to be pivoted relative to the frame between a work position, a maneuver position, and a transport position. The displacement device includes a connecting-rod and at least a first jack articulated between the frame and the connecting-rod and a second jack articulated to the arm and connected to the connecting-rod by a pin. The connecting-rod is directly connected to the arm by a second articulation, and the second articulation is separate from the first articulation. | 07-09-2015 |
20150107500 | AGRICULTURAL MACHINE HAVING AN IMPROVED CHASSIS - An agricultural machine for working soil or for sowing seeds, including a trailed chassis and work elements distributed over a transverse beam including a central section including wheels and two side sections extending on either side of the central section during work, each end of the central section resting on the ground via a wheel. Each side section includes an extension arm and an intermediate arm, the extension arm is connected to the intermediate arm by a horizontal articulation with a substantially horizontal axis and is directed in a direction of advance at work and each intermediate arm is connected to the chassis via a vertical articulation and carries at least one work element. | 04-23-2015 |
20150107211 | COUPLING DEVICE AND AGRICULTURAL MACHINE COMPRISING SUCH A DEVICE - A coupling device for an agricultural machine including a support for hitching to a tractor and at least one arm articulated to the support and protruding from the support in a direction parallel to a direction of advance of the tractor, the arm carrying, in an articulated manner, a chassis carrying a work element having a cutting angle relative to the ground to allow fine control of the cutting angle during movements of the work element. The coupling device further includes an upper connecting-rod, a lower connecting-rod, and a central connecting-rod, each of the upper and lower connecting-rods is articulated to the support and the central connecting-rod to form, projected in a vertical plane parallel to the direction of advance, a deformable quadrilateral, and the central connecting-rod is articulated to the chassis. An agricultural machine can include the coupling device. | 04-23-2015 |
20150052866 | HARVESTING MACHINE COMPRISING AN IMPROVED LUBRICATION DEVICE - The present invention relates to an agricultural machine comprising 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 comprising 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. According to the invention, 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. | 02-26-2015 |
20150020492 | MACHINE FOR HARVESTING FODDER - A machine for the harvesting of plants, movable in a direction of advance, comprises an arm movable between work and transport configurations, a tool comprising lateral ends and being able to occupy a work position and another position, a connecting device via which the tool is connected to the arm and enabling a first movement of the tool relative to the arm, during which the lateral ends move vertically relative to the arm in the same vertical direction relative thereto, the connecting device comprising means making it possible to operate a second transverse and horizontal movement of the tool relative to the arm and making it possible to operate this second movement independently of the first movement. The connecting device comprises an arm oriented in the direction of advance when the support arm is in the work configuration, this arm is articulated on the support arm about a first transverse and horizontal axis when the support arm is in the work configuration, and this arm can, by pivoting about the first axis, move vertically relative to the support arm in the work configuration. | 01-22-2015 |
20140196429 | HAYMAKING MACHINE COMPRISING AN IMPROVED DEFLECTOR - A haymaking machine comprises a harvesting device comprising a rotor driven about an axis which is horizontal and perpendicular to a direction of advance during work, teeth, the points of which describe a curve envelope when the rotor turns about the axis, and a conveyor moving the plants transversely to the direction of advance, the machine comprising a deflector connected to an arm connected to the harvesting device by means of an articulation, about which the arm can pivot between a first position in which the deflector is arranged, during work, beside and at a distance from a lateral end of the harvesting device, and a second position. In the second position and considering the machine during work, the deflector and the arm extend flat and at least partially above the harvesting device. | 07-17-2014 |
20140174051 | AGRICULTURAL HARVESTING MACHINE COMPRISING AN IMPROVED DEVICE FOR GUIDING PLANTS - An agricultural machine comprises a pick-up device with teeth and points, and a guiding device with a lower front end, a rear part and an intermediate part situated above the pick-up device and movable relative to the latter about a rotation center, via a displacement device movable in a first, respectively a second position and comprising first and second connecting means which enable the guiding device to pivot about a first, respectively a second rotation center. The first and second connecting means are geometrically and/or elastically configured so that in the first position, the lower front end is greatly raised above the ground and the intermediate part is brought close to the points, and that in the second position the lower front end is brought greatly close to the ground and the intermediate part and the rear part are distanced from the points. | 06-26-2014 |
20140150396 | ARTICULATED PICK-UP DEVICE AND AGRICULTURAL MACHINE EQUIPPED WITH SUCH A DEVICE - A pick-up device, usable by an agricultural machine, includes a frame and first and second units. The first and second units each include a displacement device, are arranged beside each other and a small distance apart, are connected directly to the frame by respective first and second articulations having first and second distinct axes directed in a direction of advance, include respective first and second pick-up rotors rotatable about third and fourth axes, and are connected to one another by a guidance device. The first and third axes are in a same seventh plane, the second and fourth axes are in a same eighth plane. A stop mechanism defines two work end positions of the first and second units with respect to the frame, between which they can pivot freely within a limited range, and remain connected to one another regardless of their position between the work end positions. | 06-05-2014 |
20140137531 | PICK-UP DEVICE EQUIPPED WITH IMPROVED BEARINGS AND AGRICULTURAL MACHINE EQUIPPED WITH SUCH A DEVICE - A pick-up device, usable by an agricultural machine, includes a rotating part including at least one support arm, to which are attached raking and picking up tools and which is configured to pivot about a rotation axis with respect to the rotating part by at least first and second bearings, the at least first and second bearings each including an outer ring rigidly fastened to the rotating part, and with respect to which outer ring the support arm can pivot about the rotation axis. The first bearing includes an inner ring configured to pivot about the rotation axis with respect to the outer ring and rigidly fastened to the support arm. A stop mechanism connects the inner ring to the outer ring, and limits displacement of the support arm with respect to the rotating part in a direction substantially parallel to the rotation axis to a small or nil value. | 05-22-2014 |
20140033671 | AGRICULTURAL MACHINE WITH AN IMPROVED FOLDING DEVICE - Agricultural machine including a central frame and two work devices, the central frame being connectable to a tractor, and being provided with wheels, each work device being connected to the central frame by a first articulation and being able to be moved between a transport position and a work position. The central frame is composed of a front part, a rear part and an articulation device connecting the front part to the rear part and being able to pivot in a plane which is vertical and parallel to the direction of advance with respect to the front part and to the rear part, each work device is connected to the articulation device by the first articulation, the axis of which extends in a plane which is vertical and parallel to the direction of advance, in the plane and in the transport position, the axis of the first articulation has an inclination towards the ground following a direction opposite to the direction of advance, and in the transport position, each work device is folded towards the rear about the first articulation. | 02-06-2014 |
20140020609 | REMOTE SUPPLY DEVICE FOR A SINGLE SEEDER AND SINGLE SEEDER USING SUCH A SUPPLY DEVICE - A supply device for a single seeder via a flow of air from a main reservoir containing product to at least one auxiliary reservoir depending on its filling rate, each auxiliary reservoir being connected to the main reservoir by a respective leak-tight duct, the number of auxiliary reservoirs corresponding to the number of distributors of the single seeder. A regulating system is associated with each auxiliary reservoir and the regulating system has a sensor for detecting the level of product and a valve for regulating the flow of air in the corresponding auxiliary reservoir. A single seeder using a supply device according to the invention. | 01-23-2014 |
20130312383 | HAYMAKING MACHINE - A haymaking machine, or a windrower, including a support structure including a main beam on which is articulated at least one lateral arm supporting at least one windrowing rotor. The rotor is connected to a support device forming an interface with a support mounted on the lateral arm. The support device makes it possible for the rotor to displace to follow movements of the terrain when the machine is in operation and is in a work position. The support device includes an adjustment system allowing to limit movements of the rotor in the work position and to block movements of the rotor in other positions, and the adjustment system allowing to limit the movements of the rotor includes a control including a hydraulic jack. | 11-28-2013 |
20130219848 | ROTOR OF HAYMAKING MACHINE PROVIDED WITH ARMS IN TWO PARTS CONNECTED BY AN IMPROVED CONNECTING DEVICE - The present invention relates to a rotor comprising a rotary housing and at least one oscillating arm, said oscillating arm comprising at least an internal part connected to the housing and an external part carrying tools, one of the parts comprising an engaging portion able to engage partially in an engaged portion of the other part, the said portions each comprising at least one hole and being able to be assembled by means of a connecting device comprising at least one threaded element with a shoulder, said threaded element passing through each hole of the said portions. According to the invention, the connecting device comprises an insert with at least one tapping able to be inserted inside the engaging portion, the threaded element is screwed in the tapping and the shoulder rests on the engaged portion to tighten the engaged portion against the engaging portion. | 08-29-2013 |
20130213284 | SINGLE SEEDER WITH A FOLDABLE CHASSIS AND AT LEAST ONE DISTRIBUTION HEAD ARRANGED AT THE REAR OF THE SEEDER - A single seeder with a foldable chassis composed of a central section arranged transversely with respect to the direction of work and of two lateral sections articulated on the central section, seeder elements being distributed in a regular manner on the chassis, the seeder including burying coulters for the distribution of product extending at the front of a respective seeder element, a distribution head and pipes connected on the distribution head and ending at the burying coulters. The distribution head is arranged at the rear of the seeder, behind the seeder elements, taking into account the direction of advance. | 08-22-2013 |
20130205738 | HARVESTING MACHINE WITH A LIGHTENING 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. | 08-15-2013 |
20120304906 | FOLDABLE SEEDER - A seeder including a chassis including a substantially horizontal transverse beam on which seeding elements are distributed in a regular manner, the transverse beam including a central section and two lateral sections arranged on either side of the central section in a work position, and being raised substantially above the central section in a transport position, each lateral section being connected to the chassis by a respective arm and being displaceable transversely and vertically with respect to the chassis by a deformable mechanism controlled by an operating jack. In the seeder one deformable mechanism is offset with respect to the other deformable mechanism, taking into account a direction of advance. | 12-06-2012 |
20120297744 | HAYMAKING MACHINE PROVIDED WITH A HITCHING DEVICE WITH AN INCLINED PIVOTING AXIS - The present invention relates to an agricultural haymaking machine intended to be hitched to the lower arms of a tractor, comprising a frame supported on the ground by wheels and at least one work device connected to the frame, the frame being in its front part in pivoting connection with a hitching device configured to be connected to the two lower arms, the center of gravity of the machine being situated between the wheels and the hitching device. According to the invention, the projection of the axis of the pivoting connection, on a plane which is substantially vertical and substantially parallel to the direction of advance, has an inclination towards the direction of advance following a direction of the ground upward. | 11-29-2012 |
20120090288 | PLANT MOWER-CONDITIONER COMPRISING A DEVICE FOR UNIFORMLY DISTRIBUTING PLANTS THROWN BACK TO THE GROUND - 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. | 04-19-2012 |
20120060459 | AGRICULTURAL MOWER COMPRISING A CARRYING VEHICLE AND SEVERAL WORK UNITS - An agricultural machine including a carrying vehicle and plural work units configured to cut a standing product. The agricultural machine includes at least two front work units arranged, during work and viewed in a direction of forward travel of the carrying vehicle, at the front of the carrying vehicle, and at least two lateral work units arranged, during work, on either side of a work area of the front work units. The front work units and the lateral work units can advantageously be moved with respect to the carrying vehicle to occupy a transport position or a work position. | 03-15-2012 |
20120060458 | AGRICULTURAL MOWER COMPRISING A CARRYING VEHICLE AND SEVERAL WORK UNITS - An agricultural machine including a carrying vehicle and plural work units configured to cut a standing product. The agricultural machine includes at least two front work units arranged, during work and viewed in a direction of forward travel of the carrying vehicle, at the front of the carrying vehicle, and at least two lateral work units arranged, during work, on either side of a work area of the front work units. The front work units and the lateral work units can advantageously be moved with respect to the carrying vehicle to occupy a transport position or a work position. | 03-15-2012 |
20110047947 | MOWER WITH AN IMPROVED LIGHTENING DEVICE - A mower comprising a chassis carrying at least one harvesting mechanism and a lightening device of said harvesting mechanism. | 03-03-2011 |
20090282800 | AGRICULTURAL MACHINE FOR HARVESTING FORAGE - The present invention relates to an agricultural machine for harvesting forage comprising a frame ( | 11-19-2009 |
20090277150 | HAYMAKING MACHINE WITH AN IMPROVED CENTRAL PROTECTOR - The present invention relates to a haymaking machine hitched to a tractor, comprising 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. | 11-12-2009 |
20090133372 | AGRICULTURAL MOWER COMPRISING A CARRYING VEHICLE AND SEVERAL WORK UNITS - An agricultural machine including a carrying vehicle and plural work units configured to cut a standing product. The agricultural machine includes at least two front work units arranged, during work and viewed in a direction of forward travel of the carrying vehicle, at the front of the carrying vehicle, and at least two lateral work units arranged, during work, on either side of a work area of the front work units. The front work units and the lateral work units can advantageously be moved with respect to the carrying vehicle to occupy a transport position or a work position. | 05-28-2009 |
20080264654 | Agricultural Implement Comprising an Improved Hitch Structure - An agricultural machine including a chassis, an engine, a driver's cabin, a hitch, and at least two working units connected to the hitch by a hitching frame. The at least two working units are configured to be pivoted between a working position in which the working units extend substantially horizontally and transversely to a direction of travel in work and a transport position in which the working units extend substantially over the chassis. The hitch is connected to the chassis via a rigid structure, the rigid structure connected to the chassis by a transverse articulation, at least one actuator being provided between the chassis and the rigid structure to allow the rigid structure to tip about the transverse articulation. | 10-30-2008 |