×

Process of installing knives in a cut pile tufting machine

  • US 4,669,171 A
  • Filed: 02/28/1986
  • Issued: 06/02/1987
  • Est. Priority Date: 08/09/1984
  • Status: Expired due to Term
First Claim
Patent Images

1. Process of installing knives in a cut pile tufting machine comprising the steps of:

  • (a) preassembling a group of flat, elongated knives, each knife having a cutting edge at one end, in a knife holder so that their ends with the cutting edges protrude prescribed distances in one direction from the knife holder as the knife holder holds them in spaced, juxtaposed, parallel relationship;

    (b) clamping the knives in said holder;

    (c) moving said knife holder along a prescribed and fixed path with respect to a carrying member, on which the knife holder will subsequently be mounted for reciprocation, so as to progressively move the cutting edges of said knives toward and between the spaces of adjacent loopers and urged in a biased condition toward and against the sides of said loopers on the tufting machine for inserting said ends respectively between said loopers;

    (d) arresting the travel of said knife holder after it has travelled to a prescribed position along said path; and

    thereafter(e) locking said knife holder in its prescribed position, to thereby simultaneously fix the position of the cutting edges of all said knives in positions for cutting engagement with their respective loopers.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×