Method and apparatus for tufting multiple yarns to produce a differently colored pattern
First Claim
1. In a machine for producing a tufted fabric, having a varigated color appearance, comprising a machine frame on which is moved longitudinally a continuous primary backing material to receive and retain individual segments of differently colored yarn tufted therein by needles which penetrate said backing material:
- feed means on said machine for continuously feeding and separately maintaining at least two separate yarns of different colors thereon for the purpose of tufting said yarns into said backing material to create a varigated appearance,guide means on said machine for maintaining said separately colored yarns in spaced relation until delivered at a respective needle,yarn control means for simultaneous operation between said yarns the separation of said differently colored yarns and to control same for variable delivery of separate yarn to a respective needle,said needles being mounted for oscillation on said machine to penetrate said backing fabric and each of said needles receiving respective differently colored yarns,and yarn drive means for driving said feed means for controlling said yarns and said yarn control means and drive means being synchronized with said feed means and said yarn control means to deliver yarn to said respective needles.
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Accused Products
Abstract
At least two differently colored yarns are delivered by feed rollers through yarn guides under control by a single or double lobe cam between the yarns to a needle bar which carries the two ends per needle and inserts same through a primary backing fabric which is caused to zigzag to create a varigated or tweed-looking tufted pattern. The feed rollers and cam are controlled by separate variable sheaves. The method is characterized by the separation of two differently colored yarns to one needle and the control of the two yarns by a cam and sheave drive while moving the backing material laterally or transversely beneath the needles.
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Citations
23 Claims
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1. In a machine for producing a tufted fabric, having a varigated color appearance, comprising a machine frame on which is moved longitudinally a continuous primary backing material to receive and retain individual segments of differently colored yarn tufted therein by needles which penetrate said backing material:
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feed means on said machine for continuously feeding and separately maintaining at least two separate yarns of different colors thereon for the purpose of tufting said yarns into said backing material to create a varigated appearance, guide means on said machine for maintaining said separately colored yarns in spaced relation until delivered at a respective needle, yarn control means for simultaneous operation between said yarns the separation of said differently colored yarns and to control same for variable delivery of separate yarn to a respective needle, said needles being mounted for oscillation on said machine to penetrate said backing fabric and each of said needles receiving respective differently colored yarns, and yarn drive means for driving said feed means for controlling said yarns and said yarn control means and drive means being synchronized with said feed means and said yarn control means to deliver yarn to said respective needles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 15)
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11. In a machine for producing a tufted fabric having a multicolored appearance, comprising a machine frame on which is moved longitudinally a continuous primary backing material to receive and retain individual segments of yarn tufted therein through said backing material:
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two feed rollers on said machine for continuously feeding and separately maintaining at least two separate yarns of different colors thereon for the purpose of tufting said yarns into said backing material to create a varigated appearance, guide means on said machine for maintaining said separately colored yarns in spaced relation until delivered at a single needle, continuously operating cam means for simultaneous operation between said differently colored yarns to maintain the separation of said two differently colored yarns and to control same for variable delivery of separately colored yarns to the needles, needles mounted on said machine frame for oscillation on said machine to penetrate said backing fabric and said needles receiving said two differently colored yarns, and two variable sheaves for said feed rollers and for said cam means for controlling said yarns and one of said sheaves driving said first roller and said second sheave for synchronizing said two feed rollers, and said second sheave driving said cam means for delivery of separately colored yarns to said single needle. - View Dependent Claims (14)
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16. In a method for creating a varigated pattern on a longitudinally movable, primary backing material by means of a needle tufting operation in which a needle is caused to penetrate said backing material from one side to another and to withdraw in succession, the procedure comprising:
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delivering and controlling in simultaneous and synchronized travel at least two differently colored yarns to a single needle, maintaining said yarns in separate travel and guiding said yarns to a single opening in said needle for simultaneous insertion through said backing material, and supplying different lengths of said yarns to said needle to create the appearance of a level pile in which there are some yarn members longer than others. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification