Telescoping hinge member on rearwardly folding tool bar

Earth working – With actuator adapted to lift tool for transport on wheeled... – Central group liftable vertically – side groups movable inwardly

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Details

172311, 172501, 403109, A01B 7300

Patent

active

043184448

ABSTRACT:
An agricultural implement is disclosed which includes a center section and a plurality of wing sections foldable with respect to each other. A plurality of ground-working tools extend downwardly and rearwardly from the sections of the implement at spaced intervals along the lengths thereof. The wing sections are pivotally connected to the center section by a telescoping hinge which prevents the ground-working tools of the respective sections from conflicting with each other when the implement is folded. The telescoping hinge includes a telescoping member, slidably connected to an end of a first associated section and pivotally connected to an end of a second associated section adjacent to the first associated section. A link member limits the distance in spaced relationship between respective points on the first and second sections and biases the telescoping member to simultaneously slide along the first associated section and pivot with respect to the second associated section when the implement is folded thus producing a telescoping action which maintains a spaced relationship between and prevents entanglement of the ground-working tools of the two sections as they are folded.

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