×

Multiple stroke looper mechanism for stitching machine

  • US 4,419,944 A
  • Filed: 11/09/1981
  • Issued: 12/13/1983
  • Est. Priority Date: 11/09/1981
  • Status: Expired due to Fees
First Claim
Patent Images

1. In a machine forming stitches in a base fabric, including means supporting a base fabric for longitudinal movement in a fabric plane through the machine, a needle bar on one side of the fabric plane, at least one needle mounted on the needle bar and adapted to carry a yarn through the base fabric, needle drive means for reciprocally moving the needle bar toward and away from the fabric plane to move the needle in a needle path through the base fabric in a plurality of reciprocal needle strokes, each needle stroke constituting a stitch cycle, and means supplying yarn to the needle, a looper mechanism comprising:

  • (a) a looper hook for each needle on the opposite side of the fabric plane from its corresponding needle and pointing in the direction opposite to the direction of the movement of the base fabric, and(b) looper drive means for reciprocally moving said looper hook across and proximate to the corresponding needle path for periodic seizure of a loop of yarn carried by a corresponding needle in a plurality of reciprocal looper strokes, the number of said looper strokes being a multiple of each needle stroke in a stitch cycle.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×