Patterned cut pile tufting machine

• US 4,029,030 A
• Filed: 05/17/1971
• Issued: 06/14/1977
• Est. Priority Date: 05/17/1971
• Status: Expired due to Term

• Current Assignee: Singer Company (SVP Holdings Ltd.)
• Original Assignee: Singer Company (SVP Holdings Ltd.)
• Inventors: Smith, Randel P.
• Primary Examiner(s): Hunter, H. Hampton
• Application Number:
  US05/144,038
• Time in Patent Office: 2,220 Days
• Field of Search: 112/79 R, 112/79 A, 112/80, 112/78, 112/266, 112/410, 112/221
• US Class Current: 112/80.51
• CPC Class Codes: D05C 15/22 Loop-catching arrangements, e.g. loopers; Driving mechanisms therefor
• CPC Class Codes: D05C 15/24 Loop cutters; Driving mechanisms therefor
• CPC Class Codes: D05C 15/32 by altering the loop length
• CPC Class Codes: D05C 17/026 characterised by the tufted pile surface

Abstract

This disclosure relates to a method and apparatus for forming patterned cut pile tufted fabrics and, in particular, colored patterned tufted pile fabrics. The patterns are essentially produced by selectively backrobbing one leg of a cut loop thereby producing a cut loop having one relatively long leg and one relatively short leg. By selectively backrobbing one leg of a cut loop of one color yarn and by refraining from backrobbing a leg of a cut loop of at least a second color, the second color will become predominant in the pattern by virtue of having twice as many long legs of that color making up the surface of the cut pile tufted fabric. The disclosure also encompasses a method and apparatus for producing relatively long nap cut pile tufted fabrics having controlled J-cut loops.

Claims

1. In an apparatus for producing patterned cut pile fabrics, a yarn carrying needle means supported for endwise movement for penetrating a base fabric to deposit loops of yarn therethrough, looper means for seizing the loop of yarn during the withdrawal of the needle through the base fabric, cutting means cooperating with said looper means for cutting the loop of yarn and operable for cutting the loop substantially immediately after it is seized by said looper, means for selectively backrobbing one leg of the cut loop whereby the cut loop is formed with one relatively long leg and one relatively short leg, and said looper means including a looper member and an oscillating looper support means, said looper member disposed in a slot in said oscillating looper support means, a clip member disposed in the same slot as said looper member, said clip member being resilient and having a bill portion including a retaining portion, and a bent portion disposed away from the free end of the bill, said retaining portion disposed in close juxtaposition with a yarn carrying portion of the looper member for retaining one leg of a cut loop between said clip member and said looper member such that when the loop is cut a leg thereof connected with the needle will be yieldably restrained by said retaining portion of the clip member and said looper member, said bent portion forming a hollow space between said bill portion and said looper member to permit disposal of lint and loose fibers picked up from the yarn.

2. In a tufting apparatus for producing cut pile fabrics having a looper means, said looper means including a looper and a looper support block, said looper having a bill portion and a body portion with said body portion having a portion thereof disposed in a slot in said looper support block, and a clip member having a bill portion disposed substantially in juxtaposition with the looper bill portion for retaining one leg of a cut loop between said clip member and said looper bill and also having a body portion having a portion thereof disposed in the same slot in the looper support block as said looper body portion, said clip member including a bent portion disposted at the rear portion of said bill portion, said bent portion being bent in a direction away from said looper to form a spacing therebetween such that lint and loose fibers may be released from between said clip member and said looper.