Abstract: A bale size sensing mechanism for an agricultural round baler having bale chamber partially defined by continuous side-by-side belts disposed between a pair of spaced-apart side walls and trained around a plurality of rolls. Bale size sensing mechanisms disposed in each side wall detects the density of the transverse ends of a bale forming within the chamber and provides the measure to a controller which determines the transverse uniformity of the bale. Each sensing mechanism includes a generally planar element having a wedge-shaped periphery with a vertex, the planar element being pivotally coupled to the baler adjacent to the vertex and a portion of the wedge-shaped periphery projecting into the bale-forming chamber to interact with the bale forming therein. The wedge-shaped periphery minimizes open areas within the bale chamber into which turbulent crop could enter and jam the sensing mechanism.

Abstract: A mechanism for connecting outboard gathering wheels to a moveable crop pick-up assembly on a round baler that incorporates a multi-element linkage to enable the rate of vertical movement of the gathering wheels to be different than the rate of vertical movement of the pick-up assembly. As the pick-up assembly is moved vertically by an actuator, the linkage interconnecting the gathering wheels and the pick-up causes the gathering wheels to also move vertically, but at a rate that is different, usually less, than the rate of vertical movement of the pickup. The linkage enables the pick-up to be raised sufficiently for transport without causing the gathering wheels to impinge upon the baler frame as occurs when both are raised at the same rate. Use of tension members in the linkage allows the gathering wheels to up float during operation without damaging the linkage.

Abstract: A method and apparatus for wrapping round bales with either netwrap or stretch film that prevent the stretch film from adhering to the parts of the wrapping mechanism.

Abstract: A wrapping material brake release assembly, including a wrapping material dispenser roll mount pivotable between a first functional position to dispense material from a dispenser roll and a second access position to provide access to the dispenser roll. A brake assembly having a brake member is arranged to brake the dispenser roll when the mount is in the first functional position. A ramp-shaped lifting member is arranged to lift the brake member from the dispenser roll when the mount is pivoted from the first position to the second position. The roll mount includes a pivot plate arranged to pivot from the first to the second positions, and a shaft attached at one end to the pivot plate. The roll mount has a brake drum, and the brake member has a brake arm and a brake pad attached to the brake arm.

Abstract: A wrapping material brake release assembly, including a wrapping material dispenser roll mount pivotable between a first functional position to dispense material from a dispenser roll and a second access position to provide access to the dispenser roll. A brake assembly having a brake member is arranged to brake the dispenser roll when the mount is in the first functional position. A ramp-shaped lifting member is arranged to lift the brake member from the dispenser roll when the mount is pivoted from the first position to the second position. The roll mount includes a pivot plate arranged to pivot from the first to the second positions, and a shaft attached at one end to the pivot plate. The roll mount has a brake drum, and the brake member has a brake arm and a brake pad attached to the brake arm.

Abstract: Twine wrapping apparatus for a round baler having a bale forming chamber with a generally transverse crop infeed opening. The apparatus is mounted forward of the opening and includes an extendable twine arm for dispensing twine into the chamber to wrap bales formed therein. A coupling mechanism provides controlled swinging movement of the arm through a predetermined path that originates in the middle of the opening. The twine arm is in its outermost extended condition at the initiation of the twine dispensing phase and retracts as it travels along its path to a generally transverse rest position.

Abstract: Twine wrapping apparatus for a round baler having a bale forming chamber with a generally transverse crop infeed opening. The apparatus is mounted forward of the opening and includes a pair of individually extendable twine arms for dispensing twine into the chamber to wrap bales formed therein. A linkage arrangement provides for controlled swinging movement of the arms in concert through symmetrical paths that originate in the middle of the opening. The twine arms are in their outermost extended condition at the initiation of the twine dispensing phase and vary in length along their paths to a generally transverse rest position.

Abstract: A potentiometer is driven by one of the serpentine arm assemblies used to maintain apron tension during formation of a round bale so that the output of the potentiometer continuously provides an indication of the size of a bale being formed in the baler. A microprocessor based control circuit senses the output of the potentiometer, converts it to a digital value, and compares the digital value with a value representing a desired bale size. When the two values are equal, the microprocessor computes the number of revolutions of a net feed roll that is required to wrap the bale a preselected number of times, energizes the net feed roll mechanism to feed net into the bale forming chamber, and counts the revolutions of the net feed roll. When the required amount of net has been dispensed, the microprocessor stops the net feed roll and activates a mechanism to cut the net. The size of a "full bale" is selected by actuating keys on a control panel.

Abstract: A potentiometer is driven by one of the serpentine arm assemblies used to maintain apron tension during formation of a round bale so that the output of the potentiometer continuously provides an indication of the size of a bale being formed in the baler. A microprocessor based control circuit senses the output of the potentiometer, converts it to a digital value, and compares the digital value with a value representing a desired bale size. When the two values are equal, the microprocessor computes the number of revolutions of a net feed roll that is required to wrap the bale a preselected number of times, energizes the net feed roll mechanism to feed net into the bale forming chamber, and counts the revolutions of the net feed roll. When the required amount of net has been dispensed, the microprocessor stops the net feed roll and activates a mechanism to cut the net. The size of a "full bale" is selected by actuating keys on a control panel.

Abstract: A bale forming method for use with round balers is disclosed. Typically round balers are operated in a manner whereby crop material is fed into only one side of the bale forming chamber at a time. The disclosed method includes positioning a round baler so that crop material is fed into the right side of the bale forming chamber, generating a signal in a first indicator light in response to a predetermined expansion of the bale forming chamber, repositioning the round baler so that crop material is fed into the left side of the bale forming chamber, and generating a signal in a second indicator light in response to a further predetermined expansion of the bale forming chamber.

Abstract: A bale shape controlling system for round balers is disclosed. The system includes first and second indicator lights, and bale shape monitor apparatus for alternately generating signals in the indicator lights in response to predetermined expansion of the bale forming chamber of round balers. Typically round balers are operated in a manner whereby crop material is fed into only one side of the bale forming chamber at a time. The system also includes apparatus for automatically positioning round balers so that crop material is alternately fed into the right or left side of the bale forming chamber when signals are alternately generated in the indicator lights.

Abstract: A bale shape monitoring system for round balers includes first and second indicator lights, and bale shape monitor apparatus for alternately generating signals in the indicator lights in response to predetermined expansion of the baling chamber of round balers. Typically round balers are operated in a manner whereby crop material is fed into only one side of the baling chamber at a time. The signals generated in the indicator lights are used by the operator of a round baler as an indication of when to weave the baler to feed crop material into the other side of the baling chamber. Proper use of the disclosed system prevents the formation of poorly shaped bales while reducing operator fatigue.

Abstract: In a roll baling machine having a floor roller and an apron which cooperate in suitable manner to form roll bales, a sprocket-shaped member is provided to support the transverse tubes of the apron against bending and twisting loads during bale formation and thereby prevent damage to the apron.