Cloth presser mechanism with rack and pinion needle rod-drive

  • US 4,915,044 A
  • Filed: 04/17/1989
  • Issued: 04/10/1990
  • Est. Priority Date: 06/07/1988
  • Status: Expired due to Fees
First Claim
Patent Images

1. A cloth presser mechanism adapted for connection to the arm of a sewing machine and comprising a cloth presser vertically movably supported by said arm;

  • a needle rod vertically movably supported by said arm having a needle at the lower end thereof;

    a rack secured to the needle rod;

    a pinion rotatably supported by the arm of the sewing machine and engaged with the rack;

    a cam integral with the pinion;

    a first link having a first end pivotally mounted on the arm of the sewing machine, a middle portion and a second end;

    a second link having one end pivotally supported by the cloth presser and an opposite end pivotally connected to the second end of the first link; and

    means connected to the middle portion of the first link and engaging the surface of the cam.

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