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Furrow opening assembly

  • US 4,750,441 A
  • Filed: 08/22/1985
  • Issued: 06/14/1988
  • Est. Priority Date: 08/22/1985
  • Status: Expired due to Term
First Claim
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1. A furrow opening assembly for suspension from an implement frame, assembly comprising:

  • a tongue having a leading coupling adapted for pivotal attachment to said frame so that the tongue extends downwardly and rearwardly from the frame when attached thereto;

    a front beam provided with a leading, ground-engaging wheel;

    connecting means for pivotally connecting said front beam with said tongue rearwardly of said coupling,said connecting means including a member rigidly secured to said front beam and having a transverse pivotal connection with the tongue adjacent the normally lower, rear end of the tongue;

    a rear beam provided with a trailing, ground-engaging wheel;

    a furrow opener carried by said member between said wheels;

    pivot means pivotally connecting the rear beam with said member for up and down swinging movement of the front and rear beams relative to one another about said pivot means; and

    selectively actuatable adjustment structure connected between the rear beam and said member for varying the depth of the opener by swinging the rear beam about said pivot means,said pivot means for the rear beam being spaced forwardly on the member from said pivot connection for the tongue so that the rear end of the tongue and the front end of the rear beam overlap one another in a fore-and-aft direction,said rear beam including a pair of horizontally spaced elements for the trailing wheel which are disposed out of the vertical plane of the tongue in clearing relationship therewith whereby to permit unobstructed vertical swinging movement of the rear beam during both depth adjustment of the opener and rocking of the furrow opening assembly as changes in ground contour are encountered.

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