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Duplex frame hinge for farm implement

  • US 8,122,970 B2
  • Filed: 12/07/2009
  • Issued: 02/28/2012
  • Est. Priority Date: 12/07/2009
  • Status: Active Grant
First Claim
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1. A hinge for a multi-sectional farm implement comprising first and second pivot points, said first pivot point for pivotally coupling a first section of the multi-sectional farm implement to said hinge, said second pivot point for pivotally coupling a second section of the multi-sectional farm implement to said hinge, wherein the hinge has a first slot formed therein that receives a movable pin, said first slot partially corresponding with a second slot formed in said second section when said hinge is coupled to said second section, wherein said first slot comprises:

  • a first portion that is wider in width than a corresponding first portion of said second slot of said second section; and

    a second portion that corresponds in width to a corresponding second portion of said second slot of said second section,wherein said movable pin is received in said wider first portion of said first slot and said corresponding first portion of said second slot of said second section when said second section is unfolded to allow said second section to pivot about said second pivot point, and said moveable pin is moved in said first and second slots to said corresponding second portions to prevent said second section from pivoting about said second pivot point when folding said second section relative to said first section such that said second section pivots only about said first pivot point to fold said second section relative to said first section and wherein said first section pivots about said first pivot point relative to said hinge and said second section pivots about said second pivot point relative to said hinge when said second section is unfolded relative to said first section.

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