EP3263755B1 - Double-sided fabric comprising a stitched sack having an interlayer stacked with continuous cord material to from an area of high thickness - Google Patents
Double-sided fabric comprising a stitched sack having an interlayer stacked with continuous cord material to from an area of high thickness Download PDFInfo
- Publication number
- EP3263755B1 EP3263755B1 EP16176639.9A EP16176639A EP3263755B1 EP 3263755 B1 EP3263755 B1 EP 3263755B1 EP 16176639 A EP16176639 A EP 16176639A EP 3263755 B1 EP3263755 B1 EP 3263755B1
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- EP
- European Patent Office
- Prior art keywords
- knitting
- sack
- knitted
- loops
- cord material
- Prior art date
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- 239000000463 material Substances 0.000 title claims description 190
- 239000004744 fabric Substances 0.000 title claims description 171
- 239000011229 interlayer Substances 0.000 title 1
- 238000009940 knitting Methods 0.000 claims description 486
- 238000000034 method Methods 0.000 claims description 145
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 description 72
- 238000010586 diagram Methods 0.000 description 36
- 239000000835 fiber Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000009943 combination knitting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/12—Patterned fabrics or articles characterised by thread material
- D04B1/123—Patterned fabrics or articles characterised by thread material with laid-in unlooped yarn, e.g. fleece fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/024—Fabric incorporating additional compounds
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/024—Fabric incorporating additional compounds
- D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
Definitions
- the present invention relates to a double-sided fabric, and particularly to a double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack.
- a continuous cord material can be embedded into a double-sided base yarn during a knitting process and be knitted at the same time, not only a thicker and denser double-sided fabric having more pattern changes can be formed, but also the double-sided fabric manufactured may achieve more outstanding performances in fluffiness and shape sustainability.
- Such fabric is particularly suitable for making daily life consumer products including human outerwear, shoes or handbags.
- the embedding process of the continuous cord material to be embedded is performed by yarn knitting operations using knitting needles.
- the flat bed knitting machine described refers to a model that includes a front needle bed and a back needle bed. During a knitting process, such flat bed knitting machine is capable of manufacturing not only a single-sided fabric by independently using one of the needle beds but also a double-sided fabric by simultaneously using the front and back needle beds that knit alternately.
- Taiwan Utility Model Patent No. M317443 "The Textile with Three Different Thickness Fibers".
- the above disclosure discloses a three-fiber fabric having different thicknesses including an upper fabric layer, a low fabric layer and a hard yarn thick layer.
- the lower fabric layer is partially tightened and connected to the upper fabric layer to be spaced to form a thin layer region.
- the hard yarn thick layer is a formed integral, and is spaced and disposed between the upper fabric layer and the lower fabric layer, and is adjacent to the thin layer region. Because the hard yarn thick layer is capable of supporting the upper fabric layer and the lower fabric layer, a certain thickness can be maintained.
- the primary object of the three-fiber fabric with different thicknesses is forming a fabric evenly distributed with different thicknesses and shapes by directly knitting the three fibers, so as to save processing time and manpower and thus reducing production costs.
- the primary object of the three-fiber fabric knitted by the above disclosure is knitting the fibers into a fabric evenly distributed with different thicknesses and shapes. That is to say, the fabric of the above disclosure does not provide a technical solution that allows setting the number of times of stacks at a predetermined position according to a required thickness as desired.
- the three-fiber fabric of the above disclosure does not satisfy market needs. Therefore, there is a need for a solution that overcomes drawbacks and limitations of the above disclosure.
- GB 1577399 discloses a combined knitting fabric including a top face knitted fabric, a bottom face knitted fabric, at least one of the knitted fabrics providing tuck stitches or loop connecting the knitted fabrics together at spaced locations defining between the stitches free spaces between the top face fabric and the bottom face fabric, and filler yarns consisting of textured synthetic filament yarns inserted between the top face fabric and the bottom face fabric and buckled optimally in a finishing treatment to expand and fill the spaces thereby protruding raised areas in relief on at least one of the knitted fabrics.
- US 2010/154256 discloses a padded collar 45 formed by two overlapping and at least partially coextensive layers of knitted material and a plurality of floating yarns 46 extending between the layers.
- US 2012/233882 discloses a knitted component 130 having a padded area formed by two overlapping and at least partially coextensive layers 140 and a plurality of floating yarns 141 extending between the layers 140.
- US 3424220 discloses a long filamentary element 16 serpentined back and forth as knitting of the flexible element 13 continues.
- DE 202015101004 discloses an air-permeable knitted fabric.
- the present invention in addition to embedding a continuous cord material into a knitted sack of a double-sided fabric in a knitting process, the present invention causes the continuous cord material to stack and form a thickness in the knitted sack, so as to knit a double-sided fabric appearing relief embossed and having different thicknesses.
- the doubled-sided fabric stacked with the continuous cord material and forming a thickness in the knitted sack not only effectively satisfies consumer market needs, but also reduces manpower and time costs as well as effectively enhancing production efficiency.
- the present invention provides a double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack.
- the double-side fabric is knitted from a face yarn by a flat bed knitting machine, which includes a front needle bed, a back needle bed, and a loop presser bed.
- the front needle bed includes a plurality of front knitting needles.
- the back needle beds includes a plurality of back knitting needles at corresponding positions staggered from the front knitting needles.
- the loop presser bed is above the front needle bed or the back needle bed, and includes a plurality of right-directed knitting pressing pieces and left-directed knitting pressing pieces alternately arranged in gaps of the plurality of front knitting needles and the plurality of back knitting needles, respectively.
- the double-sided fabric further includes a knitted sack formed from loops knitted from the face yarn by the plurality of front knitting needles and the plurality of back knitting needles.
- the knitted sack includes therein at least one continuous cord material, which is pressed into the knitted sack by the plurality of right-directed knitting pressing pieces and the plurality of left-directed knitting pressing pieces to become folded and stacked to form a thickness.
- the continuous cord material is guided and fed in from the front needle bed towards the double-sided fabric, and guided towards the front needle bed to depart the double-sided fabric.
- the continuous cord material is guided and fed in from the front needle bed towards the double-sided fabric, and guided towards the back needle bed to depart the double-sided fabric.
- the continuous cord material is guided and fed in from the back needle bed towards the double-sided fabric, and guided towards the back needle bed to depart the double-sided fabric.
- the continuous cord material is guided and fed in from the back needle bed towards the double-sided fabric, and guided towards the front needle bed to depart the double-sided fabric.
- the thread diameter of the continuous cord material is greater than the thread diameter of the face yarn.
- the present invention achieves following effects compared to the prior art.
- the continuous cord material is stacked in the knitted sack of the double-sided fabric, such that the double-sided fabric may offer preferred thickness and piling effect.
- the continuous cord material may be stacked in the knitted sack according to an operator setting and form a required thickness, so as to manufacture a double-sided fabric appearing relief embossed and having different thicknesses for effectively satisfying consumer market needs.
- a post procedure of adding a filler material can be eliminated to reliably reduce manpower and time costs and effectively enhance production efficiency.
- a flat bed knitting machine described in the present invention is a known and market available model (model number: SVR093SP) made by Shima Seiki Mfg., Ltd, Japan.
- SVR093SP model number: SVR093SP
- this model is not to be construed as a limitation to the present invention.
- the flat bed knitting machine at least includes a front needle bed, a back needle bed, a loop presser bed, a carriage above the front needle bed, the back needle bed and the loop presser bed, and a plurality of yarn feeders between the front needle bed, the back needle bed and the loop presser bed.
- the front needle bed includes a plurality of front knitting needles.
- the back needle bed includes a plurality of back knitting needles at corresponding positions staggered from the front knitting needles.
- the loop presser bed is above the front needle bed or the back needle bed, and includes a plurality of right-directed knitting pressing pieces and a plurality of left-directed knitting pressing pieces correspondingly and alternately arranged in gaps of the plurality of front knitting needles and the plurality of back knitting needles, respectively.
- Fig. 1 to Fig. 5 show a partial planar structural schematic diagram, a partial section diagram, a schematic diagram with the continuous cord material removed, a planar section diagram along the direction X-X, and a diagram of partial knitting processes according to a first preferred embodiments of the present invention.
- the present invention provides a double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack.
- the doubled-sided fabric is integrally knitted from a face yarn 20 (including a first face yarn 21 and a second face yarn 22 in one embodiment) by the above flat bed knitting machine.
- the front needle bed includes a plurality of front knitting needles A to E.
- the back needle bed includes a plurality of back knitting needles a to f at corresponding position staggered from the plurality of front knitting needles A to E.
- the loop presser bed is above the front needle bed or the back needle bed, and includes a plurality of right-directed knitting pressing pieces aA, bB, cC, dD and eE and a plurality of left-directed knitting pressing pieces Ef, De, Cd, Bc and Ab correspondingly alternately arranged in gaps of the plurality of front knitting needles A to E and the plurality of back knitting needles a to f, respectively.
- the double-sided fabric further includes a knitted sack 200 formed from loops knitted from the first face yarn 21 and the second face yarn 22 by the plurality of front knitting needles A to E and the plurality of back knitting needles b to e.
- the double-sided fabric includes the knitted sack 200 and a knitted fabric portion connected to the knitted sack 200, i.e. the knitted fabric portion is any suitable portion of the double-sided fabric adjacent to the knitted sack 200.
- the knitted fabric portion consists of a plurality of loops knitted from the first face yarn 21 together with the second face yarn 22. That is, each of the plurality of loops includes both of the first face yarn 21 and the second face yarn 22.
- the knitted sack 200 includes a front sack portion and a back sack portion, which are divided from the knitted fabric portion, and the back sack portion is spaced apart from the front sack portion to define a space of the knitted sack 200 between the front sack portion and the back sack portion.
- the front sack portion consists of a plurality of front loops knitted from the first face yarn 21 of the knitted fabric portion.
- the back sack portion consists of a plurality of back loops knitted from the second face yarn 22 of the knitted fabric portion.
- the knitted fabric portion is a single knitted layer formed by the first face yarn 21 and the second face yarn 22, and the front sack portion and the back sack portion of the knitted sack 200 are two separable layers, wherein one layer (e.g., the front sack portion) is formed by the first face yarn 21 of the knitted fabric portion, and the other layer (e.g. the back sack portion) is formed by the second face yarn 22 of the knitted fabric portion.
- the knitted sack 200 includes therein a continuous cord material 100, which is pressed into the knitted sack 200 by the right-directed knitting pressing pieces bB, cC, dD and eE and the left-directed knitting pressing pieces De, Cd, Bc and Ab to become folded and stacked to form a thickness. That is, the cord material 100 is inserted into the space of the knitted sack 200 and extends back and forth between the front loops and the back loops. That is, the cord material (100) is folded and stacked between the front loops and the back loops, and isolated in the space of the knitted sack 200When viewing from a first side of the double-sided fabric, the cord material 100 is disposed behind the front loops and in front of the back loops.
- the cord material 100 When viewing from a second side of the double-sided fabric opposite to the first side, the cord material 100 is disposed in front of the front loops and behind the back loops. It should be noted that, the continuous cord material 100 may be guided and fed in from the front needle bed towards the double-sided fabric, and guided towards the front needle bed to depart the double-sided fabric, or guided and fed in from the front needle bed towards the double-sided fabric, and guided towards the back needle bed to depart the double-sided fabric. Similarly, the continuous cord material 100 may be guided and fed in from the back needle bed towards the double-sided fabric, and guided towards the back needle bed to depart the double-sided fabric, or guided and fed in from the back needle bed towards the double-sided fabric, and guided towards the front needle bed to depart the double-sided fabric.
- the method includes knitting a first face yarn 21 together with a second face yarn 22 alternatingly on the front needle bed and the back needle bed to form a knitted fabric portion of the double-sided fabric.
- the flat bed knitting machine applied in the present invention starts knitting along a carriage operation direction 30 to the right side as shown by the knitting process 1
- the front knitting needles A to E and the back knitting needles a to f sequentially knit the face yarn 20 (including a first face yarn 21 and a second face yarn 22) to form loops.
- the method includes dividing face yarn 20 (i.e., diving the first face yarn 21 and the second face yarn 22 of the knitted fabric portion to separately knit the first face yarn 21 only on the front needle bed to form a front sack portion and knit the second face yarn 22 only on the back needle bed to form a back sack portion spaced apart from the front sack portion.
- the front sack portion and the back sack portion are divided from the knitted fabric portion and together form a knitted sack 200 of the double-sided fabric.
- the front sack portion consists a plurality of front loops formed from the first face yarn 21 of the knitted fabric portion
- the second sack portion consists of a plurality of back loops formed from the second face yarn 22 of the knitted fabric portion.
- the first face yarn 21 and the second face yarn 22 are together sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e.
- the front knitting needles D, C and B and the back knitting needles d and c are then controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separately to form loops.
- the method includes suspending the knitting at the knitted sack 200 and inserting a cord material 100 back and forth between the front loops and the back loops by using the loop presser bed. For example, referring to Fig.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, a yarn feeder 10 is caused to guide and feed a continuous cord material 100 from between the front knitting needles A and B of the front needle bed and to guide from the left side to the right side above the loops formed in the knitting process 2, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press the continuous cord material 100 downwards into the initially formed knitted sack 200, to cause to the yarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 2-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 2-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 2-n (where n is a predetermined number greater than 2).
- the knitted sack 200 is in an initially knitted shape and thus has a limited space for accommodating the continuous cord material 100.
- the value n may be determined by the thickness of the continuous cord material 100, and the knitting process 2-2 to the knitting process 2-n may also be omitted.
- the first face yarn 21 and the second face yarn 22 are together sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops.
- the front knitting needles B, C and D and the back knitting needles c and d are then controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separately to form loops.
- the front knitting needle E to the back knitting needle f the first face yarn 21 and the second face yarn 22 are again together knitted to form loops, as shown by the knitting process 3 in Fig. 5 .
- the knitted sack 200 gradually expands.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to again guide and feed the continuous cord material 100 and to guide from the left side to the right side above the loops formed in the knitting process 3, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200, to cause to the yarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 3-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 3-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 3-n.
- the first face yarn 21 and the second face yarn 22 are together sequentially knitted by the back knitting needle f and the front knitting needle E to form loops.
- the front knitting needles D, C and B and the back knitting needles e, d, c and b are controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separately to form loops.
- the first face yarn 21 and the second face yarn 22 are again together sequentially knitted to form loops, as shown by the knitting process 4 in Fig. 5 .
- the knitted sack 200 is substantially formed. Referring to Fig.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to again guide and feed the continuous cord material 100 and to guide from the left side to the right side above the loops formed in the knitting process 4, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC, dD and eE are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200, to cause to the yarn feeder 10 to stop guiding to the right side as reaching the front knitting needle E, as shown by the knitting process 4-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to again move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd, Bc and Ab are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd, Bc and Ab sequentially lift the right-directed knitting pressing pieces eE, dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 4-2.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the right side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to move to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces aA, bB, cC, dD and eE are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the right-directed knitting pressing pieces aA, bB, cC, dD and eE sequentially lift the left-directed knitting pressing pieces Ab, Bc, Cd and De that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the right side, as shown by the knitting process 4-3.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 4-n.
- the first face yarn 21 and the second face yarn 22 are together sequentially knitted by the back knitting needle a and the front knitting needle A to form loops.
- the front knitting needles B, C and D and the back knitting needles b, c d and e are then controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separately to form loops.
- the front knitting needle E to the back knitting needle f the first face yarn 21 and the second face yarn 22 are again together knitted to form loops, as shown by the knitting process 5 in Fig. 5 .
- the knitted sack 200 is fully shaped. Referring to Fig.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to again guide and feed the continuous cord material 100 and to guide from the left side to the right side above the loops formed in the knitting process 5, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC, dD and eE are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200, to cause to the yarn feeder 10 to stop guiding to the right side as reaching the front knitting needle E, as shown by the knitting process 5-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd, Bc and Ab are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd, Bc and Ab sequentially lift the right-directed knitting pressing pieces eE, dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 5-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 5-n.
- the first face yarn 21 and the second face yarn 22 are together sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e to form loops.
- the front knitting needles D, C and B and the back knitting needles d and c are then controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separately to form loops.
- the front knitting needle A to the back knitting a the first face yarn 21 and the second face yarn 22 are again together sequentially knitted to form loops, as shown by the knitting process 6 in Fig. 5 .
- the knitted sack 200 is narrowed and to be soon sealed. Referring to Fig.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to again guide and feed the continuous cord material 100 and to guide from the left side to the right side above the loops formed in the knitting process 6, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200, to cause to the yarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 6-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to again move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 6-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 6-n.
- the thread diameter of the continuous cord material 100 is greater than four times of the thread diameter of the first face yarn 21 or the second face yarn 22.
- the yarn feeder 10 at the end guides the continuous cord material 100 to the right side (or the continuous cord material 100 may be guided to the left side), and guides the continuous cord material 100 towards the front needle bed or the back needle bed to depart the double-sided fabric.
- the continuous cord material 100 may also stay in the double-sided fabric, and be again guided and fed in when another knitted sack 200 is to be formed.
- the method includes resuming the knitting of the double-sided fabric. For example, again referring to Fig.
- Fig. 11 to Fig. 15 show a partial planar structural schematic diagram, a diagram of partial knitting processes, and diagrams of knitting processes of pressing in the continuous cord material according to a second preferred embodiment of the present invention.
- Fig. 12 when the flat bed knitting machine applied in the present invention starts knitting along a carriage operation direction 30 to the right side as shown by the knitting process 1, the front knitting needles A to E and the back knitting needles a to f sequentially knit the face yarn 20 (including a first face yarn 21 and a second face yarn 22) to form loops.
- the first face yarn 21 and the second face yarn 22 are together sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e.
- the front knitting needles D, C and B and the back knitting needles d and c are then controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separately to form loops.
- the front knitting needle A to the back knitting needle a the first face yarn 21 and the second face yarn 22 are again together knitted to form loops, as shown by the knitting process 2 in Fig. 12 .
- an initial knitting process of a knitted sack 200 has begun.
- the first face yarn 21 and the second face yarn 22 are together sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops.
- the front knitting needles B, C and D and the back knitting needles c and d are then controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separately to form loops.
- the front knitting needle E to the back knitting needle f the first face yarn 21 and the second face yarn 22 are again together knitted to form loops, as shown by the knitting process 3 in Fig. 12 .
- the knitted sack 200 gradually expands.
- the first face yarn 21 and the second face yarn 22 are sequentially knitted together by the back knitting f, the front knitting needle E and the back knitting needle e.
- the front knitting needles D, C and B and the back knitting needles d and c are controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separated to form loops.
- the back knitting needle b the front knitting needle A to the back knitting needle a, the first face yarn 21 and the second face yarn 22 are again together knitted to form loops, as shown by the knitting process 4 in Fig. 12 .
- the knitted sack 200 is substantially formed. Referring to Fig.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to guide and feed a continuous cord material 100 from between the front knitting needles A and B of the front needle bed and to guide from the left side to the right side above the loops formed in the knitting process 4, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press the continuous cord material 100 downwards into the substantially formed knitted sack 200, to cause the yarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 4-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 4-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 4-n (where n is a predetermined number greater than 2). It should be noted that, at this point, the shape of the knitted sack 200 is substantially formed and so the knitted sack 200 has a larger space for accommodating the continuous cord material 100.
- the predetermined value n may be in a larger value, which is also determined according to the thickness of the continuous cord material 100, till the required thickness is achieved.
- the first face yarn 21 and the second face yarn 22 are together sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops.
- the front knitting needles B, C and D and the back knitting needles c and d are then controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separately to form loops.
- the front knitting needle E to the back knitting needle f the first face yarn 21 and the second face yarn 22 are again together knitted to form loops, as shown by the knitting process 5.
- the knitted sack 200 formed continues to expand.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to again guide and feed the continuous cord material 100 and to guide from the left side to the right side above the loops formed in the knitting process 5, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200, to cause to the yarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 5-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 5-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 5-n.
- the first face yarn 21 and the second face yarn 22 are together sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e to form loops.
- the front knitting needles D, C and B and the back knitting needles d and c are then controlled to sequentially knit the first face yarn 21 and the second face yarn 22 separately to form loops.
- the front knitting needle A to the back knitting a the first face yarn 21 and the second face yarn 22 are again together sequentially knitted to form loops, as shown by the knitting process 6.
- the knitted sack 200 is about to be sealed. Referring to Fig.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to again guide and feed the continuous cord material 100 and to guide from the left side to the right side above the loops formed in the knitting process 6, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200, to cause to the yarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 6-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to again move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 6-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 6-n.
- the yarn feeder 10 at the end guides the continuous cord material 100 to the right side (or the continuous cord material 100 may be guided to the left side), and the continuous cord material 100 is guided towards the front needle bed or the back needle bed to depart the double-sided fabric. After departing the double-sided fabric, the continuous cord material 100 may also stay in the double-sided fabric, and be again guided and fed in when another knitted sack 200 is to be formed. Again referring to Fig.
- the knitting processes 4-1, 4-2 to 4-n and the knitting processes 5-1, 5-2 to 5-n may be omitted, and the continuous cord material 100 may be guided by the yarn feeder 10 from the left side to the right side above the loops knitted by the knitting process 6 to directly perform the knitting processes 6-1, 6-2 to 6-n.
- the continuous cord material 100 is caused to continually pressed downwards to become stacked in the knitted sack 200 until the thickness required by the shape of the knitted sack 200 is achieved.
- Fig. 16 to Fig. 21 show a partial planar structural schematic diagram, a planar section diagram along a direction Y-Y, a diagram of partial knitting processes, and diagrams of knitting processes of pressing a continuous cord material according to a third preferred embodiment of the present invention.
- the knitted fabric portion consists of a plurality of loops knitted from the face yarn 20 in rows and columns.
- the knitted sack 200 includes a front sack portion and a back sack portion, which are divided from the knitted fabric portion, and the back sack portion is spaced apart from the front sack portion to define a space of the knitted sack 200 between the front sack portion and the back sack portion.
- the front sack portion consists of a plurality of front loops knitted from the face yarn 20 of the knitted fabric portion in odd rows
- the back sack portion consists of a plurality of back loops knitted from the face yarn 20 of the knitted fabric portion in even rows. That is, the front loops of the front sack portion are connected to the loops in odd rows of the knitted fabric portion, and the back loops are connected to the loops in even rows of the knitted fabric portion.
- the knitted sack 200 includes at least two rows of the face yarn 20 to form the front sack portion and at least two rows of the face yarn 20 to form the back sack portion.
- the method includes knitting a face yarn 20 alternatingly on the front needle bed and the back needle bed to form a knitted fabric portion of the double-sided fabric.
- the face yarn 20 is knitted only on the front needle bed to form a front sack portion consisting of a plurality of front loops.
- the flat bed knitting machine applied in the present invention starts knitting along a carriage operation direction 30 to the right side as shown by the knitting process 1 in Fig. 18 , the front knitting needles A to E and the back knitting needles a to f sequentially knit a face yarn 20 to form loops.
- the face yarn 20 is sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e to form loops. Only the front knitting needles D, C and B, but not the back knitting needles d and c, are then controlled knit the face yarn 20 to form loops.
- the face yarn 20 is sequentially knitted by the back knitting needle b, the front knitting needle A and the back knitting needle a to form loops, as shown by the knitting process 2 in Fig. 18 .
- an initial knitting process of a knitted sack 200 has begun.
- the method includes reverse-knitting the face yarn 20 alternatingly on the front needle bed and the back needle bed to form the knitted fabric portion of the double-sided fabric.
- the face yarn 20 is knitted only on the back needle bed to form a back sack portion spaced apart from the front sack portion.
- the front sack portion and the back sack portion together form a knitted sack 200 of the double-sided fabric, and the second sack portion consists of a plurality of back loops.
- the face yarn 20 is sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops.
- the method includes suspending the knitting at the knitted sack 200 and inserting a cord material 100 back and forth between the front loops and the back loops by using the loop presser bed, so that the cord material 100 is isolated in a space between the front sack portion and the back sack portion of the knitted sack 200. For example, referring to Fig.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to guide and feed the continuous cord material 100 from between the front knitting needles A and B of the front needle bed and to guide from the left side to the right side above the loops formed in the knitting process 4, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press the continuous cord material 100 downwards into the initially formed knitted sack 200, to cause the yarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 4-1.
- the thread diameter of the continuous cord material 100 is preferably greater than four times of the thread diameter of the face yarn 20.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to move to the left side along with the operation direction of the yarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 4-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached (where n is a predetermined value greater than 2), as shown by the knitting process 5-n.
- n is a predetermined value greater than 2
- the predetermined value n may be in a larger value, which is also determined according to the thickness of the continuous cord material 100, till the required thickness is achieved.
- the face yarn 20 is sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops.
- the back knitting needles c and d are controlled to sequentially knit the face yarn 20 to form loops.
- the back knitting needle e, the front knitting needle E to the back knitting needle f then knit the face yarn 20 to form loops, as shown by the knitting process 5.
- the formed knitted sack 200 continues to expand. Referring to Fig.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to again guide and feed the continuous cord material 100 and to guide from the left side to the right side above the loops formed in the knitting process 5, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200, to cause to the yarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 5-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 5-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 5-n.
- the face yarn 20 is sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e to form loops.
- the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and the yarn feeder 10 is caused to again guide and feed the continuous cord material 100 and to guide from the left side to the right side above the loops formed in the knitting process 6, such that the carriage operation direction 30 moves to the right side along with the operation direction of the yarn feeder 10.
- the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200, to cause to the yarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 6-1.
- the yarn feeder 10 switches to guide the continuous cord material 100 to the left side to cause the continuous cord material 100 to be folded, and causes the carriage operation direction 30 to again move to the left side along with the operation direction of the yarn feeder 10.
- the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press the continuous cord material 100 downwards into the knitted sack 200.
- the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from the continuous cord material 100.
- the yarn feeder 10 stops guiding to the left side, as shown by the knitting process 6-2.
- the yarn feeder 10 may keep guiding the continuous cord material 100 back and forth to the left and right sides, such that the continuous cord material 100 is continually pressed downwards to become stacked in the knitted sack 200, until the thickness currently required by the shape of the knitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 6-n.
- the yarn feeder 10 at the end guides the continuous cord material 100 to the right side (or the continuous cord material 100 may be guided to the left side), and the continuous cord material 100 is guided towards the front needle bed or the back needle bed to depart the double-sided fabric.
- the knitted fabric portion consists of a plurality of loops knitted from the face yarn 20 in rows and columns, and the method includes repeating the knitting of the front sack portion and the back sack portion, so that the front loops of the front sack portion are connected to the loops in odd rows of the knitted fabric portion, and the back loops are connected to the loops in even rows of the knitted fabric portion.
- the method also includes repeating the insertion of the cord material 100 between the front loops and the back loops when the knitting of the front sack portion and the back sack portion is repeated.
- the continuous cord material 100 may also stay in the double-sided fabric, and be again guided and fed in when another knitted sack 200 is to be formed.
- the method includes resuming the knitting of the double-sided fabric. For example, again referring to Fig.
- the knitting processes 4-1, 4-2 to 4-n, and the knitting processes 5-1, 5-2 to 5-n may be omitted, and the continuous cord material 100 may be guided by the yarn feeder 10 from the left side to the right side above the loops knitted by the knitting process 6 shown to directly perform the knitting processes 6-1, 6-2 to 6-n, as shown in Fig. 21 .
- the continuous cord material 100 is caused to continually pressed downwards to become stacked in the knitted sack 200 until the thickness required by the shape of the knitted sack 200 is achieved.
- the cord material 100 When viewing from a first side of the double-sided fabric, the cord material 100 is disposed behind the front loops and in front of the back loops; when viewing from a second side opposite to the first side of the double-sided fabric opposite to the first side, the cord material 100 is disposed in front of the front loops and behind the back loops.
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Description
- The present invention relates to a double-sided fabric, and particularly to a double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack.
- In the modern society that values health, environmental protection and fashion, consumers demand higher comfort and design requirements on garment fabrics. In response to market needs of human wear, fabric manufacturers focus on making fabrics of different colors and pattern changes. If a continuous cord material can be embedded into a double-sided base yarn during a knitting process and be knitted at the same time, not only a thicker and denser double-sided fabric having more pattern changes can be formed, but also the double-sided fabric manufactured may achieve more outstanding performances in fluffiness and shape sustainability. Such fabric is particularly suitable for making daily life consumer products including human outerwear, shoes or handbags. In currently existing technologies associated with a flat bed knitting machine that embeds a continuous cord material to be embedded, the embedding process of the continuous cord material to be embedded is performed by yarn knitting operations using knitting needles. Thus, when the length of the continuous cord material to be embedded exceeds 1 inch, due a certain inclined angle produced when the continuous cord material is fed by a yarn feeder, the continuous cord material may not be reliably knitted by the knitting needle in the yarn knitting process, hence easily resulting in an unsatisfactory fabric. That is to say, when adopting the above technology for embedding the continuous cord material, the length of the continuous cord material cannot exceed 1 inch. Thus, the development of fabrics manufactured from the above knitting technology also suffers from severe restrictions. It should be noted that, the flat bed knitting machine described refers to a model that includes a front needle bed and a back needle bed. During a knitting process, such flat bed knitting machine is capable of manufacturing not only a single-sided fabric by independently using one of the needle beds but also a double-sided fabric by simultaneously using the front and back needle beds that knit alternately.
- One of current technologies is as disclosed by the
Taiwan Utility Model Patent No. M317443 -
GB 1577399 US 2010/154256 discloses a padded collar 45 formed by two overlapping and at least partially coextensive layers of knitted material and a plurality of floating yarns 46 extending between the layers.US 2012/233882 discloses a knitted component 130 having a padded area formed by two overlapping and at least partially coextensive layers 140 and a plurality of floating yarns 141 extending between the layers 140.US 3424220 discloses a long filamentary element 16 serpentined back and forth as knitting of theflexible element 13 continues.DE 202015101004 discloses an air-permeable knitted fabric. - Therefore, it is a primary object of the present invention to provide a solution for overcoming the drawbacks of the above disclosure. That is, it is a primary object of the present invention, in addition to embedding a continuous cord material into a knitted sack of a double-sided fabric in a knitting process, the present invention causes the continuous cord material to stack and form a thickness in the knitted sack, so as to knit a double-sided fabric appearing relief embossed and having different thicknesses. Thus, the doubled-sided fabric stacked with the continuous cord material and forming a thickness in the knitted sack not only effectively satisfies consumer market needs, but also reduces manpower and time costs as well as effectively enhancing production efficiency.
- According to the above object, the present invention provides a double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack. The double-side fabric is knitted from a face yarn by a flat bed knitting machine, which includes a front needle bed, a back needle bed, and a loop presser bed. The front needle bed includes a plurality of front knitting needles. The back needle beds includes a plurality of back knitting needles at corresponding positions staggered from the front knitting needles. The loop presser bed is above the front needle bed or the back needle bed, and includes a plurality of right-directed knitting pressing pieces and left-directed knitting pressing pieces alternately arranged in gaps of the plurality of front knitting needles and the plurality of back knitting needles, respectively. The double-sided fabric further includes a knitted sack formed from loops knitted from the face yarn by the plurality of front knitting needles and the plurality of back knitting needles. The knitted sack includes therein at least one continuous cord material, which is pressed into the knitted sack by the plurality of right-directed knitting pressing pieces and the plurality of left-directed knitting pressing pieces to become folded and stacked to form a thickness.
- Further, in the double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack, the continuous cord material is guided and fed in from the front needle bed towards the double-sided fabric, and guided towards the front needle bed to depart the double-sided fabric.
- Further, in the double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack, the continuous cord material is guided and fed in from the front needle bed towards the double-sided fabric, and guided towards the back needle bed to depart the double-sided fabric.
- Further, in the double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack, the continuous cord material is guided and fed in from the back needle bed towards the double-sided fabric, and guided towards the back needle bed to depart the double-sided fabric.
- Further, in the double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack, the continuous cord material is guided and fed in from the back needle bed towards the double-sided fabric, and guided towards the front needle bed to depart the double-sided fabric.
- Further, in the double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack, the thread diameter of the continuous cord material is greater than the thread diameter of the face yarn.
- It is known from the above technical solution that, the present invention achieves following effects compared to the prior art. First of all, in the present invention, the continuous cord material is stacked in the knitted sack of the double-sided fabric, such that the double-sided fabric may offer preferred thickness and piling effect. Secondly, in the present invention, the continuous cord material may be stacked in the knitted sack according to an operator setting and form a required thickness, so as to manufacture a double-sided fabric appearing relief embossed and having different thicknesses for effectively satisfying consumer market needs. Thirdly, in the present invention, as the knitting process of the continuous cord material is added into the knitted sack, a post procedure of adding a filler material can be eliminated to reliably reduce manpower and time costs and effectively enhance production efficiency.
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Fig. 1 is a partial planar structural schematic diagram according to a first preferred embodiment of the present invention; -
Fig. 2 is a partial section diagram ofFig. 1 ; -
Fig. 3 is a schematic diagram ofFig. 2 , with the continuous cord material removed; -
Fig. 4 is a planar section schematic diagram along a direction X-X inFig. 1 ; -
Fig. 5 is a diagram of partial knitting processes inFig. 1 ; -
Fig. 6 is a knitting process diagram between theknitting process 2 and theknitting process 3 inFig. 5 ; -
Fig. 7 is a knitting process diagram between theknitting process 3 and theknitting process 4 inFig. 5 ; -
Fig. 8 is a knitting process diagram between theknitting process 4 and theknitting process 5 inFig. 5 ; -
Fig. 9 is a knitting process diagram between theknitting process 5 and theknitting process 6 inFig. 5 ; -
Fig. 10 is a knitting process diagram between theknitting process 6 and theknitting process 7 inFig. 5 ; -
Fig. 11 is a partial planar structural schematic diagram according to a second preferred embodiment of the present invention; -
Fig. 12 is a diagram of partial knitting processes inFig. 11 ; -
Fig. 13 is a knitting process diagram between theknitting process 4 and theknitting process 5 inFig. 12 ; -
Fig 14 is a knitting process diagram between theknitting process 5 and theknitting process 6 inFig. 12 ; -
Fig. 15 is a knitting process diagram between theknitting process 6 and theknitting process 7 inFig. 12 ; -
Fig. 16 is a partial planar structural schematic diagram according to a third preferred embodiment of the present invention; -
Fig. 17 is a planar section schematic diagram along a direction Y-Y inFig. 16 ; -
Fig. 18 is a diagram of partial knitting processes inFig. 16 ; -
Fig. 19 is a knitting process diagram between theknitting process 4 and theknitting process 5 inFig. 18 ; -
Fig. 20 is a knitting process diagram between theknitting process 5 and theknitting process 6 inFig. 18 ; and -
Fig. 21 is a knitting process diagram between theknitting process 6 and theknitting process 7 inFig. 18 . - First of all, it should be noted that a flat bed knitting machine described in the present invention is a known and market available model (model number: SVR093SP) made by Shima Seiki Mfg., Ltd, Japan. However, this model is not to be construed as a limitation to the present invention. As the above flat bed knitting machine is a technology generally known to one person skilled in the art, the structure of the flat bed knitting machine is described in brief in the application, and associated details and denotations are omitted herein. The flat bed knitting machine at least includes a front needle bed, a back needle bed, a loop presser bed, a carriage above the front needle bed, the back needle bed and the loop presser bed, and a plurality of yarn feeders between the front needle bed, the back needle bed and the loop presser bed. The front needle bed includes a plurality of front knitting needles. The back needle bed includes a plurality of back knitting needles at corresponding positions staggered from the front knitting needles. The loop presser bed is above the front needle bed or the back needle bed, and includes a plurality of right-directed knitting pressing pieces and a plurality of left-directed knitting pressing pieces correspondingly and alternately arranged in gaps of the plurality of front knitting needles and the plurality of back knitting needles, respectively.
- Detailed technical contents of a double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack of the present invention are given in the non-limiting preferred embodiments below with reference to the accompanying drawings.
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Fig. 1 to Fig. 5 show a partial planar structural schematic diagram, a partial section diagram, a schematic diagram with the continuous cord material removed, a planar section diagram along the direction X-X, and a diagram of partial knitting processes according to a first preferred embodiments of the present invention. Referring toFig. 1 to Fig. 5 , the present invention provides a double-sided fabric stacked with a continuous cord material and forming a thickness in a knitted sack. The doubled-sided fabric is integrally knitted from a face yarn 20 (including afirst face yarn 21 and asecond face yarn 22 in one embodiment) by the above flat bed knitting machine. The front needle bed includes a plurality of front knitting needles A to E. The back needle bed includes a plurality of back knitting needles a to f at corresponding position staggered from the plurality of front knitting needles A to E. The loop presser bed is above the front needle bed or the back needle bed, and includes a plurality of right-directed knitting pressing pieces aA, bB, cC, dD and eE and a plurality of left-directed knitting pressing pieces Ef, De, Cd, Bc and Ab correspondingly alternately arranged in gaps of the plurality of front knitting needles A to E and the plurality of back knitting needles a to f, respectively. The double-sided fabric further includes aknitted sack 200 formed from loops knitted from thefirst face yarn 21 and thesecond face yarn 22 by the plurality of front knitting needles A to E and the plurality of back knitting needles b to e. For example, the double-sided fabric includes theknitted sack 200 and a knitted fabric portion connected to theknitted sack 200, i.e. the knitted fabric portion is any suitable portion of the double-sided fabric adjacent to theknitted sack 200. The knitted fabric portion consists of a plurality of loops knitted from thefirst face yarn 21 together with thesecond face yarn 22. That is, each of the plurality of loops includes both of thefirst face yarn 21 and thesecond face yarn 22. Theknitted sack 200 includes a front sack portion and a back sack portion, which are divided from the knitted fabric portion, and the back sack portion is spaced apart from the front sack portion to define a space of theknitted sack 200 between the front sack portion and the back sack portion. The front sack portion consists of a plurality of front loops knitted from thefirst face yarn 21 of the knitted fabric portion. The back sack portion consists of a plurality of back loops knitted from thesecond face yarn 22 of the knitted fabric portion. That is, the knitted fabric portion is a single knitted layer formed by thefirst face yarn 21 and thesecond face yarn 22, and the front sack portion and the back sack portion of theknitted sack 200 are two separable layers, wherein one layer (e.g., the front sack portion) is formed by thefirst face yarn 21 of the knitted fabric portion, and the other layer (e.g. the back sack portion) is formed by thesecond face yarn 22 of the knitted fabric portion. Theknitted sack 200 includes therein acontinuous cord material 100, which is pressed into theknitted sack 200 by the right-directed knitting pressing pieces bB, cC, dD and eE and the left-directed knitting pressing pieces De, Cd, Bc and Ab to become folded and stacked to form a thickness. That is, thecord material 100 is inserted into the space of theknitted sack 200 and extends back and forth between the front loops and the back loops. That is, the cord material (100) is folded and stacked between the front loops and the back loops, and isolated in the space of the knitted sack 200When viewing from a first side of the double-sided fabric, thecord material 100 is disposed behind the front loops and in front of the back loops. When viewing from a second side of the double-sided fabric opposite to the first side, thecord material 100 is disposed in front of the front loops and behind the back loops. It should be noted that, thecontinuous cord material 100 may be guided and fed in from the front needle bed towards the double-sided fabric, and guided towards the front needle bed to depart the double-sided fabric, or guided and fed in from the front needle bed towards the double-sided fabric, and guided towards the back needle bed to depart the double-sided fabric. Similarly, thecontinuous cord material 100 may be guided and fed in from the back needle bed towards the double-sided fabric, and guided towards the back needle bed to depart the double-sided fabric, or guided and fed in from the back needle bed towards the double-sided fabric, and guided towards the front needle bed to depart the double-sided fabric. - To better explain the present invention, refer to
Fig. 5 to Fig. 10 showing diagrams of partial knitting processes and a knitting process of pressing in a continuous cord material according to the first preferred embodiment of the present invention. Also referring toFig. 1 to Fig. 4 , the method includes knitting afirst face yarn 21 together with asecond face yarn 22 alternatingly on the front needle bed and the back needle bed to form a knitted fabric portion of the double-sided fabric. For example, when the flat bed knitting machine applied in the present invention starts knitting along acarriage operation direction 30 to the right side as shown by theknitting process 1, the front knitting needles A to E and the back knitting needles a to f sequentially knit the face yarn 20 (including afirst face yarn 21 and a second face yarn 22) to form loops. When the knitting of the double-sided fabric reaches a predetermined sack area, the method includes dividing face yarn 20 (i.e., diving thefirst face yarn 21 and thesecond face yarn 22 of the knitted fabric portion to separately knit thefirst face yarn 21 only on the front needle bed to form a front sack portion and knit thesecond face yarn 22 only on the back needle bed to form a back sack portion spaced apart from the front sack portion. The front sack portion and the back sack portion are divided from the knitted fabric portion and together form aknitted sack 200 of the double-sided fabric. The front sack portion consists a plurality of front loops formed from thefirst face yarn 21 of the knitted fabric portion, and the second sack portion consists of a plurality of back loops formed from thesecond face yarn 22 of the knitted fabric portion. For example, after knitting is next performed along thecarriage operation direction 30 to the left side, thefirst face yarn 21 and thesecond face yarn 22 are together sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e. The front knitting needles D, C and B and the back knitting needles d and c are then controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separately to form loops. Next, from the back knitting needle b, the front knitting needle A to the back knitting needle a, thefirst face yarn 21 and thesecond face yarn 22 are again together knitted to form loops, as shown by theknitting process 2 inFig. 5 . At this point, an initial knitting process of aknitted sack 200 has begun. The method includes suspending the knitting at theknitted sack 200 and inserting acord material 100 back and forth between the front loops and the back loops by using the loop presser bed. For example, referring toFig. 6 , at this point, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, ayarn feeder 10 is caused to guide and feed acontinuous cord material 100 from between the front knitting needles A and B of the front needle bed and to guide from the left side to the right side above the loops formed in theknitting process 2, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press thecontinuous cord material 100 downwards into the initially formed knittedsack 200, to cause to theyarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 2-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces dD, cC and bB, the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle b, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 2-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 2-n (where n is a predetermined number greater than 2). It should be noted that, at this point, theknitted sack 200 is in an initially knitted shape and thus has a limited space for accommodating thecontinuous cord material 100. Therefore, the value n may be determined by the thickness of thecontinuous cord material 100, and the knitting process 2-2 to the knitting process 2-n may also be omitted. Again referring toFig. 5 , after knitting is again performed along thecarriage operation direction 30 to the right side, thefirst face yarn 21 and thesecond face yarn 22 are together sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops. The front knitting needles B, C and D and the back knitting needles c and d are then controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separately to form loops. Next, from the back knitting needle e, the front knitting needle E to the back knitting needle f, thefirst face yarn 21 and thesecond face yarn 22 are again together knitted to form loops, as shown by theknitting process 3 inFig. 5 . At this point, theknitted sack 200 gradually expands. Referring toFig. 7 , similarly, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to again guide and feed thecontinuous cord material 100 and to guide from the left side to the right side above the loops formed in theknitting process 3, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200, to cause to theyarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 3-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces dD, cC and bB, the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle b, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 3-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 3-n. Again referring toFig. 5 , after knitting is again performed along thecarriage operation direction 30 to the left side, thefirst face yarn 21 and thesecond face yarn 22 are together sequentially knitted by the back knitting needle f and the front knitting needle E to form loops. The front knitting needles D, C and B and the back knitting needles e, d, c and b are controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separately to form loops. Next, from the front knitting needle A to the back knitting a, thefirst face yarn 21 and thesecond face yarn 22 are again together sequentially knitted to form loops, as shown by theknitting process 4 inFig. 5 . At this point, theknitted sack 200 is substantially formed. Referring toFig. 8 , at this point, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to again guide and feed thecontinuous cord material 100 and to guide from the left side to the right side above the loops formed in theknitting process 4, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC, dD and eE are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200, to cause to theyarn feeder 10 to stop guiding to the right side as reaching the front knitting needle E, as shown by the knitting process 4-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to again move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd, Bc and Ab are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces eE, dD, cC and bB, the left-directed knitting pressing pieces De, Cd, Bc and Ab sequentially lift the right-directed knitting pressing pieces eE, dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle a, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 4-2. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the right side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to move to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces aA, bB, cC, dD and eE are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the left-directed knitting pressing pieces Ab, Bc, Cd and De, the right-directed knitting pressing pieces aA, bB, cC, dD and eE sequentially lift the left-directed knitting pressing pieces Ab, Bc, Cd and De that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the front knitting needle E, theyarn feeder 10 stops guiding to the right side, as shown by the knitting process 4-3. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 4-n. Again referring toFig. 5 , after knitting is again performed along thecarriage operation direction 30 to the right side, thefirst face yarn 21 and thesecond face yarn 22 are together sequentially knitted by the back knitting needle a and the front knitting needle A to form loops. The front knitting needles B, C and D and the back knitting needles b, c d and e are then controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separately to form loops. Next, from the front knitting needle E to the back knitting needle f, thefirst face yarn 21 and thesecond face yarn 22 are again together knitted to form loops, as shown by theknitting process 5 inFig. 5 . At this point, theknitted sack 200 is fully shaped. Referring toFig. 9 , similarly, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to again guide and feed thecontinuous cord material 100 and to guide from the left side to the right side above the loops formed in theknitting process 5, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC, dD and eE are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200, to cause to theyarn feeder 10 to stop guiding to the right side as reaching the front knitting needle E, as shown by the knitting process 5-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd, Bc and Ab are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces eE, dD, cC and bB, the left-directed knitting pressing pieces De, Cd, Bc and Ab sequentially lift the right-directed knitting pressing pieces eE, dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle a, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 5-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 5-n. Again referring toFig. 5 , after knitting is again performed along thecarriage operation direction 30 to the left side, thefirst face yarn 21 and thesecond face yarn 22 are together sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e to form loops. The front knitting needles D, C and B and the back knitting needles d and c are then controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separately to form loops. Next, from the back knitting needle b, the front knitting needle A to the back knitting a, thefirst face yarn 21 and thesecond face yarn 22 are again together sequentially knitted to form loops, as shown by theknitting process 6 inFig. 5 . At this point, theknitted sack 200 is narrowed and to be soon sealed. Referring toFig. 10 , at this point, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to again guide and feed thecontinuous cord material 100 and to guide from the left side to the right side above the loops formed in theknitting process 6, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200, to cause to theyarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 6-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to again move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces dD, cC and bB, the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle b, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 6-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 6-n. However, preferably, the thread diameter of thecontinuous cord material 100 is greater than four times of the thread diameter of thefirst face yarn 21 or thesecond face yarn 22. It should be noted that, in the knitting process 6-n, theyarn feeder 10 at the end guides thecontinuous cord material 100 to the right side (or thecontinuous cord material 100 may be guided to the left side), and guides thecontinuous cord material 100 towards the front needle bed or the back needle bed to depart the double-sided fabric. After departing the double-sided fabric, thecontinuous cord material 100 may also stay in the double-sided fabric, and be again guided and fed in when anotherknitted sack 200 is to be formed. After thecord material 100 is folded and stacked between the front loops and the back loops, the method includes resuming the knitting of the double-sided fabric. For example, again referring toFig. 5 , after thecontinuous cord material 100 departs the double-sided fabric, knitting is again performed along thecarriage operation direction 30 to the right side, the front knitting needles A to E and the back knitting needles a to f sequentially knit thefirst face yarn 21 and thesecond face yarn 22 together to form loops, and a seal of theknitted sack 200 is then formed, as shown by theknitting process 7 inFig. 5 and the planar section schematic diagram along the direction X-X inFig. 4 . Next, knitting is again performed along thecarriage operation direction 30 to the left side, and the front knitting needles E to A and the back knitting needles f to a sequentially knit thefirst face yarn 21 and thesecond face yarn 22 together to form loops, as shown by theknitting process 8 inFig. 5 and the planar section schematic diagram along the direction X-X inFig. 4 . -
Fig. 11 to Fig. 15 show a partial planar structural schematic diagram, a diagram of partial knitting processes, and diagrams of knitting processes of pressing in the continuous cord material according to a second preferred embodiment of the present invention. Referring toFig. 12 , when the flat bed knitting machine applied in the present invention starts knitting along acarriage operation direction 30 to the right side as shown by theknitting process 1, the front knitting needles A to E and the back knitting needles a to f sequentially knit the face yarn 20 (including afirst face yarn 21 and a second face yarn 22) to form loops. After knitting is next performed along thecarriage operation direction 30 to the left side, thefirst face yarn 21 and thesecond face yarn 22 are together sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e. The front knitting needles D, C and B and the back knitting needles d and c are then controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separately to form loops. Next, from the back knitting needle b, the front knitting needle A to the back knitting needle a, thefirst face yarn 21 and thesecond face yarn 22 are again together knitted to form loops, as shown by theknitting process 2 inFig. 12 . At this point, an initial knitting process of aknitted sack 200 has begun. After knitting is again performed along thecarriage operation direction 30 to the right side, thefirst face yarn 21 and thesecond face yarn 22 are together sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops. The front knitting needles B, C and D and the back knitting needles c and d are then controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separately to form loops. Next, from the back knitting needle e, the front knitting needle E to the back knitting needle f, thefirst face yarn 21 and thesecond face yarn 22 are again together knitted to form loops, as shown by theknitting process 3 inFig. 12 . At this point, theknitted sack 200 gradually expands. After knitting is again performed along thecarriage operation direction 30 to the left side, thefirst face yarn 21 and thesecond face yarn 22 are sequentially knitted together by the back knitting f, the front knitting needle E and the back knitting needle e. Next, the front knitting needles D, C and B and the back knitting needles d and c are controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separated to form loops. From the back knitting needle b, the front knitting needle A to the back knitting needle a, thefirst face yarn 21 and thesecond face yarn 22 are again together knitted to form loops, as shown by theknitting process 4 inFig. 12 . At this point, theknitted sack 200 is substantially formed. Referring toFig. 13 , the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to guide and feed acontinuous cord material 100 from between the front knitting needles A and B of the front needle bed and to guide from the left side to the right side above the loops formed in theknitting process 4, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press thecontinuous cord material 100 downwards into the substantially formed knittedsack 200, to cause theyarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 4-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces dD, cC and bB, the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle b, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 4-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 4-n (where n is a predetermined number greater than 2). It should be noted that, at this point, the shape of theknitted sack 200 is substantially formed and so theknitted sack 200 has a larger space for accommodating thecontinuous cord material 100. Thus, the predetermined value n may be in a larger value, which is also determined according to the thickness of thecontinuous cord material 100, till the required thickness is achieved. Again referring toFig. 12 , after knitting is again performed along thecarriage operation direction 30 to the right side, thefirst face yarn 21 and thesecond face yarn 22 are together sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops. The front knitting needles B, C and D and the back knitting needles c and d are then controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separately to form loops. Next, from the back knitting needle e, the front knitting needle E to the back knitting needle f, thefirst face yarn 21 and thesecond face yarn 22 are again together knitted to form loops, as shown by theknitting process 5. At this point, theknitted sack 200 formed continues to expand. Referring toFig. 14 , similarly, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to again guide and feed thecontinuous cord material 100 and to guide from the left side to the right side above the loops formed in theknitting process 5, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200, to cause to theyarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 5-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces dD, cC and bB, the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle b, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 5-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 5-n. Again referring toFig. 12 , after knitting is again performed along thecarriage operation direction 30 to the left side, thefirst face yarn 21 and thesecond face yarn 22 are together sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e to form loops. The front knitting needles D, C and B and the back knitting needles d and c are then controlled to sequentially knit thefirst face yarn 21 and thesecond face yarn 22 separately to form loops. Next, from the back knitting needle b, the front knitting needle A to the back knitting a, thefirst face yarn 21 and thesecond face yarn 22 are again together sequentially knitted to form loops, as shown by theknitting process 6. At this point, theknitted sack 200 is about to be sealed. Referring toFig. 15 , at this point, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to again guide and feed thecontinuous cord material 100 and to guide from the left side to the right side above the loops formed in theknitting process 6, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200, to cause to theyarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 6-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to again move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces dD, cC and bB, the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle b, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 6-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 6-n. In the knitting process 6-n, theyarn feeder 10 at the end guides thecontinuous cord material 100 to the right side (or thecontinuous cord material 100 may be guided to the left side), and thecontinuous cord material 100 is guided towards the front needle bed or the back needle bed to depart the double-sided fabric. After departing the double-sided fabric, thecontinuous cord material 100 may also stay in the double-sided fabric, and be again guided and fed in when anotherknitted sack 200 is to be formed. Again referring toFig. 12 , after thecontinuous cord material 100 departs the double-sided fabric, knitting is again performed along thecarriage operation direction 30 to the right side, the front knitting needles A to E and the back knitting needles a to f sequentially knit thefirst face yarn 21 and thesecond face yarn 22 together to form loops, and a seal of theknitted sack 200 is formed, as shown by theknitting process 7 inFig. 11 andFig. 12 . Next, knitting is again performed along thecarriage operation direction 30 to the left side, and the front knitting needles E to A and the back knitting needles f to a sequentially knit thefirst face yarn 21 and thesecond face yarn 22 together to form loops, as shown by theknitting process 8 inFig. 11 andFig. 12 . It should be noted that, in the second preferred embodiment of the present invention, the knitting processes 4-1, 4-2 to 4-n and the knitting processes 5-1, 5-2 to 5-n may be omitted, and thecontinuous cord material 100 may be guided by theyarn feeder 10 from the left side to the right side above the loops knitted by theknitting process 6 to directly perform the knitting processes 6-1, 6-2 to 6-n. Thus, thecontinuous cord material 100 is caused to continually pressed downwards to become stacked in theknitted sack 200 until the thickness required by the shape of theknitted sack 200 is achieved. -
Fig. 16 to Fig. 21 show a partial planar structural schematic diagram, a planar section diagram along a direction Y-Y, a diagram of partial knitting processes, and diagrams of knitting processes of pressing a continuous cord material according to a third preferred embodiment of the present invention. It is clearly seen fromFig. 18 as well asFig. 16 andFig. 17 that, the knitted fabric portion consists of a plurality of loops knitted from theface yarn 20 in rows and columns. Theknitted sack 200 includes a front sack portion and a back sack portion, which are divided from the knitted fabric portion, and the back sack portion is spaced apart from the front sack portion to define a space of theknitted sack 200 between the front sack portion and the back sack portion. The front sack portion consists of a plurality of front loops knitted from theface yarn 20 of the knitted fabric portion in odd rows, and the back sack portion consists of a plurality of back loops knitted from theface yarn 20 of the knitted fabric portion in even rows. That is, the front loops of the front sack portion are connected to the loops in odd rows of the knitted fabric portion, and the back loops are connected to the loops in even rows of the knitted fabric portion. Theknitted sack 200 includes at least two rows of theface yarn 20 to form the front sack portion and at least two rows of theface yarn 20 to form the back sack portion. The method includes knitting aface yarn 20 alternatingly on the front needle bed and the back needle bed to form a knitted fabric portion of the double-sided fabric. When the knitting of the double-sided fabric reaches a predetermined sack area, theface yarn 20 is knitted only on the front needle bed to form a front sack portion consisting of a plurality of front loops. For example, when the flat bed knitting machine applied in the present invention starts knitting along acarriage operation direction 30 to the right side as shown by theknitting process 1 inFig. 18 , the front knitting needles A to E and the back knitting needles a to f sequentially knit aface yarn 20 to form loops. After knitting is next performed along thecarriage operation direction 30 to the left side, theface yarn 20 is sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e to form loops. Only the front knitting needles D, C and B, but not the back knitting needles d and c, are then controlled knit theface yarn 20 to form loops. Next, theface yarn 20 is sequentially knitted by the back knitting needle b, the front knitting needle A and the back knitting needle a to form loops, as shown by theknitting process 2 inFig. 18 . At this point, an initial knitting process of aknitted sack 200 has begun. The method includes reverse-knitting theface yarn 20 alternatingly on the front needle bed and the back needle bed to form the knitted fabric portion of the double-sided fabric. When the knitting of the double-sided fabric reaches the predetermined sack area, theface yarn 20 is knitted only on the back needle bed to form a back sack portion spaced apart from the front sack portion. The front sack portion and the back sack portion together form aknitted sack 200 of the double-sided fabric, and the second sack portion consists of a plurality of back loops. For example, after knitting is again performed along thecarriage operation direction 30 to the right side, theface yarn 20 is sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops. Only the back knitting needles c and d, but not the front knitting needle B, C and D, are then controlled to sequentially knit theface yarn 20 to form loops. Next, from the back knitting needle e, the front knitting needle E to the back knitting needle E, theface yarn 20 is sequentially knitted to form loops, as shown by theknitting process 3 inFig. 18 . At this point, theknitted sack 200 gradually expands. After knitting is again performed along thecarriage operation direction 30 to the left side, theface yarn 20 is sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e to form loops. Only the front knitting needles D, C and B, but not the back knitting needles d and c, are then controlled to sequentially knit theface yarn 20 to form loops. Next, theface yarn 20 is sequentially knitted by the back knitting needle b, the front knitting needle A and the back knitting needle a to form loops, as shown by theknitting process 4 inFig. 18 . At this point, theknitted sack 200 is substantially formed. The method includes suspending the knitting at theknitted sack 200 and inserting acord material 100 back and forth between the front loops and the back loops by using the loop presser bed, so that thecord material 100 is isolated in a space between the front sack portion and the back sack portion of theknitted sack 200. For example, referring toFig. 19 , at this point, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to guide and feed thecontinuous cord material 100 from between the front knitting needles A and B of the front needle bed and to guide from the left side to the right side above the loops formed in theknitting process 4, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press thecontinuous cord material 100 downwards into the initially formed knittedsack 200, to cause theyarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 4-1. It should be noted that, the thread diameter of thecontinuous cord material 100 is preferably greater than four times of the thread diameter of theface yarn 20. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces dD, cC and bB, the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle b, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 4-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached (where n is a predetermined value greater than 2), as shown by the knitting process 5-n. It should be noted that, at this point, theknitted sack 200 is substantially formed, and so theknitted sack 200 has a larger space for accommodating thecontinuous cord material 100. Thus, the predetermined value n may be in a larger value, which is also determined according to the thickness of thecontinuous cord material 100, till the required thickness is achieved. Again referring toFig. 18 , after knitting is again performed along thecarriage operation direction 30 to the right side, theface yarn 20 is sequentially knitted by the back knitting needle a, the front knitting needle A and the back knitting needle e to form loops. Next, only the back knitting needles c and d, but not the front knitting needles B, C and D, are controlled to sequentially knit theface yarn 20 to form loops. The back knitting needle e, the front knitting needle E to the back knitting needle f then knit theface yarn 20 to form loops, as shown by theknitting process 5. At this point, the formedknitted sack 200 continues to expand. Referring toFig. 20 , similarly, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to again guide and feed thecontinuous cord material 100 and to guide from the left side to the right side above the loops formed in theknitting process 5, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200, to cause to theyarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 5-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces dD, cC and bB, the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle b, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 5-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 5-n. Again referring toFig. 18 , after knitting is again performed along thecarriage operation direction 30 to the left side, theface yarn 20 is sequentially knitted by the back knitting needle f, the front knitting needle E and the back knitting needle e to form loops. Next, only the front knitting needles D, C and B, but not the back knitting needles d and c, are controlled to sequentially knit theface yarn 20 to form loops. From the back knitting needle b, the front knitting needle A to the back knitting needle a, theface yarn 20 is again knitted to form loops, as shown by theknitting process 6. At this point, theknitted sack 200 is about to be sealed. Referring toFig. 21 , at this point, the front knitting needles A to E and the back knitting needles a to f are controlled to stop knitting, and theyarn feeder 10 is caused to again guide and feed thecontinuous cord material 100 and to guide from the left side to the right side above the loops formed in theknitting process 6, such that thecarriage operation direction 30 moves to the right side along with the operation direction of theyarn feeder 10. Further, the right-directed knitting pressing pieces bB, cC and dD are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200, to cause to theyarn feeder 10 to stop guiding to the right side as reaching the back knitting needle e, as shown by the knitting process 6-1. Next, theyarn feeder 10 switches to guide thecontinuous cord material 100 to the left side to cause thecontinuous cord material 100 to be folded, and causes thecarriage operation direction 30 to again move to the left side along with the operation direction of theyarn feeder 10. Further, the left-directed knitting pressing pieces De, Cd and Bc are controlled to sequentially press thecontinuous cord material 100 downwards into theknitted sack 200. When about to sequentially press downwards, before sequentially passing the right-directed knitting pressing pieces dD, cC and bB, the left-directed knitting pressing pieces De, Cd and Bc sequentially lift the right-directed knitting pressing pieces dD, cC and bB that then disengage from thecontinuous cord material 100. When theyarn feeder 10 reaches the back knitting needle b, theyarn feeder 10 stops guiding to the left side, as shown by the knitting process 6-2. Similarly, theyarn feeder 10 may keep guiding thecontinuous cord material 100 back and forth to the left and right sides, such that thecontinuous cord material 100 is continually pressed downwards to become stacked in theknitted sack 200, until the thickness currently required by the shape of theknitted sack 200 is achieved, i.e., equivalently till the number predetermined by the operator is reached, as shown by the knitting process 6-n. In the knitting process 6-n, theyarn feeder 10 at the end guides thecontinuous cord material 100 to the right side (or thecontinuous cord material 100 may be guided to the left side), and thecontinuous cord material 100 is guided towards the front needle bed or the back needle bed to depart the double-sided fabric. That is, the knitted fabric portion consists of a plurality of loops knitted from theface yarn 20 in rows and columns, and the method includes repeating the knitting of the front sack portion and the back sack portion, so that the front loops of the front sack portion are connected to the loops in odd rows of the knitted fabric portion, and the back loops are connected to the loops in even rows of the knitted fabric portion. The method also includes repeating the insertion of thecord material 100 between the front loops and the back loops when the knitting of the front sack portion and the back sack portion is repeated. After departing the double-sided fabric, thecontinuous cord material 100 may also stay in the double-sided fabric, and be again guided and fed in when anotherknitted sack 200 is to be formed. After thecord material 100 is folded and stacked between the front loops and the back loops, the method includes resuming the knitting of the double-sided fabric. For example, again referring toFig. 18 , after thecontinuous cord material 100 departs the double-sided fabric, knitting is again performed along thecarriage operation direction 30 to the right side, the front knitting needles A to E and the back knitting needles a to f sequentially knit theface yarn 20 to form loops, and a seal of theknitted sack 200 is formed, as shown by theknitting process 7 inFig. 16 andFig. 18 . Next, knitting is again performed along thecarriage operation direction 30 to the left side, and the front knitting needles E to A and the back knitting needles f to a sequentially knit thefirst face yarn 21 and thesecond face yarn 22 together to form loops, as shown by theknitting process 8 inFig. 11 andFig. 12 . It should be noted that, in the third preferred embodiment of the present invention, the knitting processes 4-1, 4-2 to 4-n, and the knitting processes 5-1, 5-2 to 5-n may be omitted, and thecontinuous cord material 100 may be guided by theyarn feeder 10 from the left side to the right side above the loops knitted by theknitting process 6 shown to directly perform the knitting processes 6-1, 6-2 to 6-n, as shown inFig. 21 . Thus, thecontinuous cord material 100 is caused to continually pressed downwards to become stacked in theknitted sack 200 until the thickness required by the shape of theknitted sack 200 is achieved. When viewing from a first side of the double-sided fabric, thecord material 100 is disposed behind the front loops and in front of the back loops; when viewing from a second side opposite to the first side of the double-sided fabric opposite to the first side, thecord material 100 is disposed in front of the front loops and behind the back loops.
Claims (5)
- A double-sided fabric integrally knitted from a first face yarn (21) and a second face yarn (22), the double-sided fabric comprising a knitted sack (200) and a knitted fabric portion connected to the knitted sack (200), characterized in that: the knitted fabric portion consists of a plurality of loops knitted from the first face yarn (21) together with the second face yarn (22), wherein each of the plurality of loops comprises both of the first face yarn (21) and the second face yarn (22); the knitted sack (200) comprises a front sack portion and a back sack portion divided from the knitted fabric portion, the back sack portion spaced apart from the front sack portion to define a space of the knitted sack (200) between the front sack portion and the back sack portion, the front sack portion consists of a plurality of front loops knitted from the first face yarn (21) of the knitted fabric portion, and the back sack portion consists of a plurality of back loops knitted from the second face yarn (22) of the knitted fabric portion; and a cord material (100) is inserted into the space of the knitted sack (200) and extends back and forth between the front loops and the back loops, wherein: the cord material (100) is folded and stacked between the front loops and the back loops, and isolated in the space of the knitted sack (200); when viewing from a first side of the double-sided fabric, the cord material (100) is disposed behind the front loops and in front of the back loops; and when viewing from a second side of the double-sided fabric opposite to the first side, the cord material (100) is disposed in front of the front loops and behind the back loops.
- A double-sided fabric integrally knitted from a face yarn (20), the double-sided fabric comprising a knitted sack (200) and a knitted fabric portion connected to the knitted sack (200), characterized in that: the knitted fabric portion consists of a plurality of loops knitted from the face yarn (20) in rows and columns; the knitted sack (200) comprises at least two rows of the face yarn (20) to form a front sack portion and at least two rows of the face yarn (20) to form a back sack portion, the back sack portion spaced apart from the front sack portion to define a space of the knitted sack (200) between the front sack portion and the back sack portion, the front sack portion consists of a plurality of front loops knitted from the face yarn (20) of the knitted fabric portion in odd rows, and the back sack portion consists of a plurality of back loops knitted from the face yarn (20) of the knitted fabric portion in even rows; and a cord material (100) is inserted into the space of the knitted sack (200) and extends back and forth between the front loops and the back loops, wherein: the cord material (100) is folded and stacked between the front loops and the back loops, and isolated in the space of the knitted sack (200); when viewing from a first side of the double-sided fabric, the cord material (100) is disposed behind the front loops and in front of the back loops; and when viewing from a second side of the double-sided fabric opposite to the first side, the cord material (100) is disposed in front of the front loops and behind the back loops.
- A method for knitting a double-sided fabric by a flat bed knitting machine comprising a front needle bed, a back needle bed, and a loop presser bed, comprising: knitting a first face yarn (21) together with a second face yarn (22) alternatingly on the front needle bed and the back needle bed to form a knitted fabric portion of the double-sided fabric, wherein the knitted fabric portion consists of a plurality of loops, and each of the plurality of loops comprises both of the first face yarn (21) and the second face yarn (22); when the knitting of the double-sided fabric reaches a predetermined sack area, dividing the first face yarn (21) and the second face yarn (22) of the knitted fabric portion to separately knit the first face yarn (21) only on the front needle bed to form a front sack portion and knit the second face yarn (22) only on the back needle bed to form a back sack portion spaced apart from the front sack portion, wherein the front sack portion and the back sack portion are divided from the knitted fabric portion and together form a knitted sack (200) of the double-sided fabric, the front sack portion consists a plurality of front loops, and the second sack portion consists of a plurality of back loops; suspending the knitting at the knitted sack (200) and inserting a cord material (100) back and forth between the front loops and the back loops by using the loop presser bed; and after the cord material (100) is folded and stacked between the front loops and the back loops, resuming the knitting of the double-sided fabric, wherein: the cord material (100) is isolated in a space between the front sack portion and the back sack portion of the knitted sack (200); when viewing from a first side of the double-sided fabric, the cord material (100) is disposed behind the front loops and in front of the back loops; and when viewing from a second side of the double-sided fabric opposite to the first side, the cord material (100) is disposed in front of the front loops and behind the back loops.
- A method for knitting a double-sided fabric by a flat bed knitting machine comprising a front needle bed, a back needle bed, and a loop presser bed, comprising: knitting a face yarn (20) alternatingly on the front needle bed and the back needle bed to form a knitted fabric portion of the double-sided fabric, the knitted fabric portion consisting of a plurality of loops knitted from the face yarn (20) in rows and columns, and when the knitting of the double-sided fabric reaches a predetermined sack area, knitting the face yarn (20) of the knitted fabric portion in odd rows only on the front needle bed to form a front sack portion consisting of a plurality of front loops; reverse-knitting the face yarn (20) alternatingly on the front needle bed and the back needle bed to form the knitted fabric portion of the double-sided fabric, and when the knitting of the double-sided fabric reaches the predetermined sack area, knitting the face yarn (20) of the knitted fabric portion in even rows only on the back needle bed to form a back sack portion spaced apart from the front sack portion, wherein the front sack portion and the back sack portion are divided from the knitted fabric portion and together form a knitted sack (200) of the double-sided fabric, and the second sack portion consists of a plurality of back loops; suspending the knitting at the knitted sack (200) and inserting a cord material (100) back and forth between the front loops and the back loops by using the loop presser bed; and after the cord material (100) is folded and stacked between the front loops and the back loops, resuming the knitting of the double-sided fabric, wherein: the knitted sack (200) comprises at least two rows of the face yarn (20) to form the front sack portion and at least two rows of the face yarn (20) to form the back sack portion; the cord material (100) is isolated in a space between the front sack portion and the back sack portion of the knitted sack (200); when viewing from a first side of the double-sided fabric, the cord material (100) is disposed behind the front loops and in front of the back loops; and when viewing from a second side of the double-sided fabric opposite to the first side, the cord material (100) is disposed in front of the front loops and behind the back loops.
- The method of claim 4, further comprising repeating the insertion of the cord material (100) between the front loops and the back loops when the knitting of the front sack portion and the back sack portion is repeated.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16176639.9A EP3263755B1 (en) | 2016-06-28 | 2016-06-28 | Double-sided fabric comprising a stitched sack having an interlayer stacked with continuous cord material to from an area of high thickness |
ES16176639T ES2890483T3 (en) | 2016-06-28 | 2016-06-28 | Double-sided fabric comprising a stitched sack with a stacked middle layer with continuous cord material towards a high-gauge zone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP16176639.9A EP3263755B1 (en) | 2016-06-28 | 2016-06-28 | Double-sided fabric comprising a stitched sack having an interlayer stacked with continuous cord material to from an area of high thickness |
Publications (2)
Publication Number | Publication Date |
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EP3263755A1 EP3263755A1 (en) | 2018-01-03 |
EP3263755B1 true EP3263755B1 (en) | 2021-08-04 |
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Application Number | Title | Priority Date | Filing Date |
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EP16176639.9A Active EP3263755B1 (en) | 2016-06-28 | 2016-06-28 | Double-sided fabric comprising a stitched sack having an interlayer stacked with continuous cord material to from an area of high thickness |
Country Status (2)
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EP (1) | EP3263755B1 (en) |
ES (1) | ES2890483T3 (en) |
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CN116172307A (en) | 2018-04-13 | 2023-05-30 | 耐克创新有限合伙公司 | Knitted component with inlay buffer |
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US3424220A (en) * | 1965-10-21 | 1969-01-28 | Astro Research Corp | Isotensoid structures and method |
DE7800948U1 (en) * | 1977-04-27 | 1979-06-21 | Hepatex Ag, Wattwil, St. Gallen (Schweiz) | COMPOSITE MESH |
TWM317443U (en) | 2007-01-09 | 2007-08-21 | Ruey Tay Fibre Industry Co Ltd | The textile with three different thickness fibers |
US8490299B2 (en) * | 2008-12-18 | 2013-07-23 | Nike, Inc. | Article of footwear having an upper incorporating a knitted component |
US8839532B2 (en) * | 2011-03-15 | 2014-09-23 | Nike, Inc. | Article of footwear incorporating a knitted component |
JP5875282B2 (en) * | 2011-08-11 | 2016-03-02 | 株式会社島精機製作所 | Multi-layered knitting method and flat knitting machine used therefor |
DE202015101004U1 (en) * | 2015-03-03 | 2015-03-24 | Bönning + Sommer Gmbh & Co. Kg | Air permeable climate button |
-
2016
- 2016-06-28 EP EP16176639.9A patent/EP3263755B1/en active Active
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EP3263755A1 (en) | 2018-01-03 |
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