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Guidance system for an agricultural implement

  • US 5,476,147 A
  • Filed: 08/24/1994
  • Issued: 12/19/1995
  • Est. Priority Date: 03/19/1993
  • Status: Expired due to Fees
First Claim
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1. A guidance system for an implement drawn by a tractor with the implement being interconnected to the tractor by a hitch means, the implement including a tool bar having a rearward side, a forward side, and opposite ends, comprising:

  • an elongated first support having rearward and forward ends;

    said first support being pivotally secured, about a vertical axis, to said tool bar inwardly of one end thereof and extending forwardly therefrom;

    a ground engaging means rotatably mounted to said first support at the forward end thereof for following a row;

    at least one second support pivotally secured to said tool bar about a vertical axis, said second support vertical axis being in the same vertical plane and in a horizontally spaced relationship with respect to said first support vertical axis;

    a ground engaging coulter pivotally secured, about a vertical axis, to said second support for engagement with a furrow between adjacent rows;

    a mechanical linkage means interconnecting said first support and said coulter for pivoting said coulter, about its said vertical axis, with respect to said implement, corresponding to the angle between the longitudinal axis of said first elongated support and said tool bar, whereby said coulter aids in steering the implement into proper position with respect to the rows when said implement has moved out of alignment with the rows as sensed by the relative pivotal movement between said first support and said implement.

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