PROCESS FOR KNITTING A WEFT-KNITTED FABRIC SO THAT CUT PILE IS FORMED ON THE BACKSIDE STITCHES, A KNITTING MACHINE OPERATING ACCORDING TO THE PROCESS AND A KNITTED FABRIC OBTAINABLE WITH SUCH PROCESS AND MACHINE
First Claim
1. A process for knitting a weft-knitted fabric (T) composed of a base thread (FF) and a pile thread (Fp) mutually coupled, the fabric being composed of a succession of adjacent courses, said process being carried our in a machine having mutually opposite needlebeds and needles that are each axially slidable in a respective needlebed, each needle being provided with an end hook and a movable lever, said needles being operated in correspondence to a feeding of the yarn feed, said process comprising, for each stitch to be formed:
- effecting a forward movement of a selected needle (A8) of a first one of the needlebed from a position in which an old stitch of said yarn, belonging to a previously formed course (RI), is engaged with the selected needle (A8) to an upper run end position, and opening said lever of said selected needle (A8) by said old stitch during said forward movement of said selected needle (A8);
engaging said selected needle (A8) with said yarn by means of said hook when said selected needle (A8) is in said upper end run position;
effecting a backward movement of said selected needle (A8) from said upper end run position toward a lower run end position while closing said lever of selected needle (A8) in order to form a new stitch by inserting said yarn that is engaged with said selected needle (A8) inside said old stitch and to discharge said old stitch from said selected needle (A8); and
while said selected needle (A8) is engaging said yarn, separating said pile thread (Fp) from said-base thread (FF), forming a loop of said pile thread and subsequently cutting said loop in order to create a cut pile, as the fabric under formation progressively moves transverse to said courses.
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Accused Products
Abstract
In a process for knitting a weft-knitted fabric (T) by means of mutually opposite needlebeds comprising axially slidable needles, the needles being operated in correspondence to a yarn feed, said yarn consisting in a base thread (FF) and a pile thread (Fp) mutually coupled, for stitches in correspondence with which pile has to be formed, when the needle is engaging the yarn, the pile thread (Fp) is separated from said base thread (FF) and retained so that a bridle (B) is formed on the backside between the new stitch and the previous stitch of the same rank (R), while the base thread (FF) forms a normal backside stitch lower loop. The bridle (B) is subsequently cut in order to obtain the cut pile, as the fabric under formation progressively moves down. The invention also relates to a knitting machine specifically designed and built for carrying out the process and to a knitted fabric obtainable with such process and machine.
10 Citations
22 Claims
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1. A process for knitting a weft-knitted fabric (T) composed of a base thread (FF) and a pile thread (Fp) mutually coupled, the fabric being composed of a succession of adjacent courses, said process being carried our in a machine having mutually opposite needlebeds and needles that are each axially slidable in a respective needlebed, each needle being provided with an end hook and a movable lever, said needles being operated in correspondence to a feeding of the yarn feed, said process comprising, for each stitch to be formed:
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effecting a forward movement of a selected needle (A8) of a first one of the needlebed from a position in which an old stitch of said yarn, belonging to a previously formed course (RI), is engaged with the selected needle (A8) to an upper run end position, and opening said lever of said selected needle (A8) by said old stitch during said forward movement of said selected needle (A8);
engaging said selected needle (A8) with said yarn by means of said hook when said selected needle (A8) is in said upper end run position;
effecting a backward movement of said selected needle (A8) from said upper end run position toward a lower run end position while closing said lever of selected needle (A8) in order to form a new stitch by inserting said yarn that is engaged with said selected needle (A8) inside said old stitch and to discharge said old stitch from said selected needle (A8); and
while said selected needle (A8) is engaging said yarn, separating said pile thread (Fp) from said-base thread (FF), forming a loop of said pile thread and subsequently cutting said loop in order to create a cut pile, as the fabric under formation progressively moves transverse to said courses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A knitting machine comprising:
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two mutually opposite knitting needlebeds for forming a weft-knitted fabric (T) from a yarn composed of a base thread (FF) and a pile thread (Fp) mutually coupled; and
sliding means, slidable on one of said needlebeds, said sliding means being operable to separate and retain said pile thread (Fp), so that a loop of said pile thread is formed, and to subsequently cut said loop in order to create a cut pile. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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- 20. A weft-knitted fabric comprising a plurality of successive courses of stitches formed by means of a yarn composed of a base thread (FF) and a pile thread (Fp) mutually coupled, characterized in that said fabric comprises stitches with respective cut pile formations formed by said pile thread, combined, within one of said courses or among a plurality of mutually adjacent courses, with normal rightside or backside stitches.
Specification