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Adjustable pile height mechanism and method for adjusting the pile height of a tufted floor covering

  • US 7,267,062 B1
  • Filed: 08/31/2005
  • Issued: 09/11/2007
  • Est. Priority Date: 08/31/2005
  • Status: Expired due to Fees
First Claim
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1. An adjustable pile height mechanism for producing a tufted floor covering having a substrate, said adjustable pile height mechanism comprising:

  • (a) an adjustable bed plate;

    (b) a cam shaft;

    (c) a plurality of eccentric cams mounted on the cam shaft so as to be adapted to contact the adjustable bed plate;

    (d) a needle assembly, said needle assembly being adapted to move relative to the substrate of the tufted floor covering;

    wherein the cam shaft is adapted to be rotated so as to rotate the plurality of eccentric cams, and wherein the rotational movement of the plurality of eccentric cams raises and lowers the adjustable bed plate so as to adjust the pile height of the tufted floor covering.

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