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Ground engaging apparatus

  • US 7,395,767 B2
  • Filed: 09/21/2005
  • Issued: 07/08/2008
  • Est. Priority Date: 09/24/2004
  • Status: Expired due to Fees
First Claim
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1. A ground engaging apparatus comprising:

  • i) a frame;

    ii) a support plate pivotally attached to the frame about a first point;

    iii) a first bias member attached at a first end to the frame and attached at a second end to the support plate;

    iv) at least two arms each pivotally attached at respective first ends to the support plate;

    v) a shank support to which respective second ends of the at least two arms are pivotally attached;

    vi) a second bias member attached at a first end to the frame and attached a second end to one arm of the at least two arms;

    vii) a shank attached to the shank support;

    viii) a ground opening tool attached to a free end of the shank opposite the shank support; and

    ix) a ground follower attached to the shank support;

    wherein;

    said first bias member applies a first force to the support plate urging the support plate to rotate about the first point to thereby abut a stop that obstructs rotation thereof until a counter force is applied against the ground follower or ground opening tool that is greater than the first force such that the support plate rotates about the first point in a direction away from the stop; and

    the second bias member applies a second force to the one arm thereby urging the ground follower against a surface and the ground opening tool into the surface.

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