Patent ID: 7165491

Claim:
A round baler, comprising: a main body having transversely spaced, fixed side structures including an outer pair of side walls; and an inner pair of side walls respectively spaced laterally from said outer pair of side walls and including portions defining opposite ends of a bale chamber; a plurality of fixed rolls attached to said side structures and including a first fixed roll mounted to a lower front region of said side structures, a second fixed roll mounted to an upper front region of said side structures, a third fixed roll mounted to an upper rear region of said side structures, and a fourth fixed roll mounted to an upper middle region of said side structures; a first pivot arm attached to a front middle region of said side structures, at a location between said first and second fixed rolls, for swinging about a first pivot axis between a lowered bale starting position and a raised bale completed position, with said first pivot arm carrying first and second mobile rolls at an end region remote from said axis with said second mobile roll being located between said first mobile roll and said first axis; a second pivot arm attached to said upper middle region of said side structures, at a location spaced just rearward of said fourth fixed roll, for swinging about a second pivot axis between a lowered bale starting position and a raised bale completed position, with said second pivot arm carrying third and fourth mobile rolls at an end region remote from said second axis with said fourth mobile roll being between said third mobile roll and said second axis; an unloading pivot frame attached to said side structures for swinging between a lowered baling position and a raised unloading position about at third pivot axis, located approximately coincident with an axis of a completed bale located in said bale chamber, with said unloading pivot frame, as considered in said baling position, carrying a fifth mobile roll located approximately vertically below said end region of said first pivot arm, and carrying a sixth mobile roll located adjacent a lower rear region of said side structures, with said fifth mobile roll being down and to the rear from said first fixed roll so as to define an inlet to said bale chamber; a flexible, endless baling means including a loop routed between said first and second mobile rolls and over said fourth fixed roll, said loop diverging below said first and second mobile rolls, with a forward strand extending first about said first fixed roll then about said second fixed roll and with a rear strand extending first about said fifth mobile roll then about said third fixed roll and then about said fourth mobile roll; and a baling control means having an extensible and retractable first actuator having opposite ends respectively coupled to said first and second pivot arms, such that said first actuator is caused to extend during formation of a bale in the bale chamber.