Folding mechanism for a multiple section agricultural implement

Details Folding mechanism for a multiple section agricultural implement Folding mechanism for a multiple section agricultural implement

A - Human Necessities

01

B

97/128

A01B 73/00 (2006.01) A01B 73/04 (2006.01)

Patent

CA 1089281

FOLDING MECHANISM FOR A MULTIPLE SECTION AGRICULTURAL IMPLEMENT ABSTRACT OF THE DISCLOSURE A multiple section agricultural implement having laterally inner and outer wing sections on laterally opposite sides of a central section for relative folding movement about longitudinal axes by hydraulically powered folding mechanisms. The outer wing section is folded from an extended working posi- tion in which the wing sections are in horizontal alignment to an inverted position above the inner wing section and the inner wing section is folded to an upright position relative to the central section. The folding mechanism for folding the outer wing section relative to the inner wing section includes a pair of links interconnected at their upper ends by a lost motion connection. The lower ends of the links are connected to laterally spaced points on the outer and inner wing sections in spaced relation to the longitudinal pivot axis of pivot connec- tion between the sections. The hydraulic jack of the folding mechanism is mounted on the inner wing section and is pivotally connected to one of the links. The inner wing section is con- nected to the central section for pivotal movement from its extended working position to an upright position by a hydraulic ram mounted on the central section and connected to the inner wing section by a lost motion connection. The lost motion connections permit the implement sections to float relative to one another during use of the implement thereby assuring proper position of the tools when traversing uneven ground. The hydraulic jack of the folding mechanism between the outer and inner wing sections includes a clevis which presents a shoulder in abutting relation to the upper, slotted end of the link connected to the outer wing section when the latter is folded to approximately an overhead balanced position. This abutting relationship, which continues to be present as the outer wing section is folded from its overhead balanced position to its inverted transport position, prevents uncontrolled movement of the outer wing section when the latter swings through its balanced overhead position.

313964

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