Low transport height stack fold implement

Details Low transport height stack fold implement Low transport height stack fold implement

1997-06-18

1999-07-13

Batson, Victor

Earth working

Plural wheeled implements

Outrigged implement adjustable inwardly

172662, 172458, 111 52, A01B 4900

Patent

active

059213256

ABSTRACT:
A stack folding implement has a transverse frame that includes a center section and two opposite wing sections half as wide as the center section. Each of the wing sections is connected in a four bar linkage relationship with the center section so that as the wings are lifted by cylinders coupled with the linkages, the wing sections stay generally level and upright, causing the wing sections to come into stacked relationship with the center section directly above the latter and beside one another. In order to reduce the overall height of the stack-folded machine the linkage for each wing section is connected to the wing adjacent the inner end of the wing so that the wing is supported in a cantilever manner. The main lifting link of the linkage is designed to swing through an arc greater than 90.degree. to permit the wing sections to settle down close to the center section in their final positions of rest. In one embodiment the inner stabilizing link of the linkage for each wing includes a telescoping piston and cylinder assembly and a rocker lever that pivotally connects the anchor end of the cylinder to the center frame section. In a second embodiment the inner stabilizing link comprises a non-extensible, rigid link having a lost-motion pivot coupling with the center frame section.

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