Abstract: A knotter system has a billhook; a twine receiver; a twine delivering system for delivering twines across the billhook to the twine receiver; a swing arm having a lower end portion with a knife blade, moveable below the billhook, a first drive to make the billhook perform at least a first and a second full rotation to move the swing arm two times from a backward to a forward position and back to form respectively a first and second consecutive knot; wherein the twine receiver comprises a rotatable twine disc and a twine holder adapted to clamp twines against the twine disc; wherein said twine disc is provided with at least a first and a second notch for receiving the twines, and a protruding ridge located after the second notch, such that the twine holder is pushed by the ridge during and/or after the formation of the second knot.

Abstract: A knotter system has a billhook; a twine receiver; a twine delivering system for delivering twines across the billhook to the twine receiver; a swing arm having a lower end portion with a knife blade, moveable below the billhook, a first drive to make the billhook perform at least a first and a second full rotation to move the swing arm two times from a backward to a forward position and back to form respectively a first and second consecutive knot; wherein the twine receiver comprises a rotatable twine disc and a twine holder adapted to clamp twines against the twine disc; wherein said twine disc is provided with at least a first and a second notch for receiving the twines, and a protruding ridge located after the second notch, such that the twine holder is pushed by the ridge during and/or after the formation of the second knot.

Abstract: A tying mechanism comprising a bill hook, twine holding device for holding strands of twines, a cutting arm adapted for cutting twines between the bill hook and the twine holding device while moving between a rest position and an extended position, a drive adapted to make the bill hook perform at least a first full rotation and a second full rotation and to move the cutting arm from the rest position to the extended position and back during a full operation cycle to form respectively a first and a second consecutive knot wherein the tying mechanism further comprises a tension regulating mechanism able to provide and regulate the tension exerted to the twine holding device during the operation of the tying mechanism.

Abstract: A tying mechanism comprising a bill hook, twine holding device for holding strands of twines, a cutting arm adapted for cutting twines between the bill hook and the twine holding device whilst moving between a rest position and an extended position, a drive adapted to make the bill hook perform at least a first full rotation and a second full rotation and to move the cutting arm from the rest position to the extended position and back during a full operation cycle to form respectively a first and a second consecutive knot wherein the tying mechanism further comprises a tension regulating mechanism able to provide and regulate the tension exerted to the twine holding device during the operation of the tying mechanism.

Abstract: A square baler comprises a bale chute for lowering completed bales onto the ground, wherein the bale chute has a leading end connected to the rear end of the baler for pivoting movement between a raised transport position and a lowered operating position about an axis transverse to the direction of travel of the baler, and a suspension is provided. The suspension is connected to the baler by way of a lever mechanism that is movable between a first position in which the bale chute is supported in the operating position and a second position in which the bale chute is inclined sufficiently to the horizontal to cause a bale resting on any part of the bale chute to slide under the action of gravity along the bale chute and to fall onto the ground from the trailing end of the bale chute.

Abstract: A square baler comprises a bale chute for lowering completed bales onto the ground, wherein the bale chute has a leading end connected to the rear end of the baler for pivoting movement between a raised transport position and a lowered operating position about an axis transverse to the direction of travel of the baler, and a suspension is provided. The suspension is connected to the baler by way of a lever mechanism that is movable between a first position in which the bale chute is supported in the operating position and a second position in which the bale chute is inclined sufficiently to the horizontal to cause a bale resting on any part of the bale chute to slide under the action of gravity along the bale chute and to fall onto the ground from the trailing end of the bale chute.

Abstract: A knotter had a twine holder, a bill hook, an arm carrying a crotch and a cutter and a twine finger operated by a drive mechanism to form two knots consecutively, the first to tie together two runs of twine passed around a completed bale and the second to tie together two runs of twine drawn from respective supply rolls for the commencement of the next bale. The twine holder serves to grip the two runs of twine drawn from the supply rolls throughout the formation of the two knots. The bill hook serves to knot the runs of twine gripped by the holder. The cutter serves to sever the runs of twine between the holder and the bill hook. The crotch pushes the twine runs off the bill hook during the completion of each knot. The twine finger is pivotably mounted on the opposite side of the bill hook from the twine holder to bring the sections of the runs of twine to be knotted within the reach of the bill hook.

Abstract: A knotter had a twine holder, a bill hook, an arm carrying a crotch and a cutter and a twine finger operated by a drive mechanism to form two knots consecutively, the first to tie together two runs of twine passed around a completed bale and the second to tie together two runs of twine drawn from respective supply rolls for the commencement of the next bale. The twine holder serves to grip the two runs of twine drawn from the supply rolls throughout the formation of the two knots. The bill hook serves to knot the runs of twine gripped by the holder. The cutter serves to sever the runs of twine between the holder and the bill hook. The crotch pushes the twine runs off the bill hook during the completion of each knot. The twine finger is pivotably mounted on the opposite side of the bill hook from the twine holder to bring the sections of the runs of twine to be knotted within the reach of the bill hook.

Abstract: A double knotting method and apparatus capable of producing two successive knots in a pair of strands during one full operating cycle of a tying mechanism. The tying mechanism is comprised of a twine holder for maintaining a pair of strands in a suitable position, a cutter that co-operates with the twine holder for severing the strands during formation of successive knots, and a release mechanism for releasing the pair of strands from the twine holder before frill successive knot completion. The method and apparatus avoid twine tail formation.

Abstract: An agricultural baler comprises a baling chamber and pick-up device for collecting crop material from a field and feeding it to conveyor mechanism which transports it into the baling chamber. A plunger reciprocates therein for compressing the crop material to a package and a tying mechanism encircles the package with one or more strands of tying material, thereby forming a completed bale. The baler comprises bale discharge device disposed at the outlet of the baling chamber, the bale discharge device being movable between an extended position for receiving the completed bale and depositing it onto the field and a retracted position for reducing the overall length of the baler. In the retracted position, a rear portion of the bale discharge device is rested on a support on top of the baling chamber. The discharge device are held in their retracted position by the rear portion itself.

Abstract: An agricultural baler having a main frame, a stuffer for loading successive charges of crop material into a baling chamber installed on the frame and a plunger for compressing the charges into packages of crop material. When the package has reached a predetermined length, a trip mechanism actuates a tying mechanism to tie a series of strands around the package to form a finished bale. The drive line to the tying mechanism comprises a dog clutch assembly including a continuously rotated hub and a dog lever positioned for possible engagement of a cam lobe on the inner surface of the hub. In between tying cycles a lever of the trip mechanism keeps the dog lever away from the hub surface. A timing cam cooperating with a roller on the lever precludes the actuation of the dog clutch when the cam lobe passes in the vicinity of the dog lever.

Abstract: A rectangular baler is disclosed comprising a bale case (6) into which successive charges of crop material are introduced; a plunger (7) disposed for reciprocating movement in the bale case (6) to compact the charges while advancing the compacted charges toward an exit opening in the bale case; and a knotter (8) for tying a flexible binding material, such as twine, in a form-stabilising manner around successive increments of compacted crop material while they advance in the bale case (6) to form bales. An elongated sensor (48), disposed on the knotter (8) in the trajectory of the flexible material (49) projecting from a twine holder (32) towards a billhook (33), is operable to detect the tensile forces occurring in the binding material during bale formation and to produce signals, which are processed by a microprocessor (24) to, if found necessary, lower the density of the bales in order to avoid twine failure.

Abstract: The agricultural baler operable to produce square bales and comprising a bale case having an inlet opening formed therein, a feeder communicating at one end with the inlet opening in the bale case and feeder tines operable to feed crop material into the feeder duct to form a wad of crop material for subsequent transfer to the bale case. A wall of the feeder duct is provided with rollers or a conveyor operable to assist in the movement of crop material within the feeder duct and contactable by the crop material as it passes through the feeder duct, whereby the frictional forces produced by the passage of the crop material over that wall of the feeder duct are reduced.

Abstract: A rectangular baler has a density control for controlling the density to which crop material is compacted by a cyclically operating plunger, and a cyclically operating tying mechanism for tying loops of binding material around successive lengths of the compacted crop material to form bales. In order for the tying mechanism to function properly the binding material must slide between a tied bale and the crop material being compacted against the tied bale. If the sliding friction is too great, the binding material breaks or is pulled free of the tying mechanism thus resulting in failure of the tying process. To reduce the sliding friction, the compaction density is reduced for an interval of time following each cycle of the tying mechanism. The interval of time may be tolled by counting a number of plunger cycles immediately following a cycle of the tying mechanism, the density control being set for reduced compaction density until the number of plunger cycles has been counted.