Method for knitting a tubular knitted fabric
The method addresses the inefficiency of manual yarn fraying prevention by securing the yarn with overlapping stitches on a flat knitting machine, achieving effective fray prevention and a neat finish without manual intervention.
Patent Information
- Application Number
- JP2022165865
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-10-14
- Publication Date
- 2025-11-26
- Estimated Expiration
- 2042-10-14
AI Technical Summary
Existing methods for preventing knitting yarn fraying on flat knitting machines require manual labor, which is time-consuming and inefficient, especially when multiple yarn changes are needed.
A method for knitting tubular knitted fabrics using a flat knitting machine with a fray prevention step that involves fixing the knitting yarn by wrapping it around a previous stitch, forming a double stitch, and knitting the terminal stitch in the wale direction to secure the yarn, eliminating the need for manual knot-tying.
The method effectively prevents yarn fraying without manual labor, ensuring a neat finish by securing the yarn with overlapping stitches, reducing the likelihood of distortion and fray, and maintaining tension balance between stitches.
Smart Images

Figure 0007776398000001 
Figure 0007776398000002 
Figure 0007776398000003
Abstract
Description
[Technical Field]
[0001] The present invention relates to a method for knitting a tubular knitted fabric in which knitting yarn is prevented from fraying on a flat knitting machine. [Background technology]
[0002] When knitting a fabric having, for example, a striped pattern or an intarsia pattern using a flat knitting machine equipped with multiple feeders, the knitting yarn is switched. When switching the knitting yarn, it is necessary to fix the knitting yarn to the fabric so that the knitting yarn does not fray. In Patent Document 1, the knitting yarn is prevented from fraying by knitting a knot in the knitting yarn on the flat knitting machine. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-186694 Summary of the Invention [Problem to be solved by the invention]
[0004] In the method described in Patent Document 1, it is necessary to manually tighten the knots of the knitting yarn after knitting with a flat knitting machine. If there are many points where the knitting yarn is changed, this manual work takes time and effort.
[0005] One object of the present invention is to provide a method for knitting a tubular knitted fabric that can prevent the knitting yarn from fraying without the need for manual labor. [Means for solving the problem]
[0006] <1> The knitting method of the tubular knitted fabric of the present invention comprises: A method for knitting a tubular knitted fabric in which a tubular knitted fabric 1 including a first knitted fabric portion is knitted in an all-needle state using a flat knitting machine having a first needle bed and a second needle bed facing the first needle bed, a fray prevention step of fixing a knitting yarn extending from a first feeder used for knitting the first knitted fabric section to the first stitch when knitting a first stitch that is one stitch below the terminal stitch of the first knitted fabric section on the first needle bed, The fray prevention step includes: a step A of moving the first feeder in a first direction and knitting the first stitch; A step B of moving a specific stitch that is in the vicinity of the first stitch among the existing stitch rows held on the second needle bed before the step A is performed to the first needle bed, and making the specific knitting needle on which the specific stitch was held an empty needle; A step C of moving the first stitch to the specific knitting needle; A process D of split knitting the first stitch and knitting a second stitch drawn out from the first stitch on the specific knitting needle; a step E of forming a double stitch by overlapping the second stitch with the first stitch; and a step F of returning the specific stitch to the specific knitting needle, The terminal stitch is knitted in the wale direction following the double stitch.
[0007] Here, the first stitch is a stitch that serves as a base for knitting the terminal stitch. In other words, the first stitch is a stitch that is knitted in the wale direction as the terminal stitch. In the knitting method for a tubular knitted fabric of the present invention, the terminal stitch is knitted in the wale direction as the double stitch including the first stitch. It does not matter which of the above steps A and B is performed first.
[0008] <2> the above <1> In the knitting method of the tubular knitted fabric described in After the step D and before the step E, a step X may be provided in which the first feeder is moved in the same direction as the knitting direction of the second stitch, and a new second stitch is knitted that continues in the wale direction of the second stitch.
[0009] <3> the above <1> or <2> In the knitting method of the tubular knitted fabric described above, The terminal stitch may be knitted by moving the first feeder in a second direction opposite to the first direction. [Effects of the Invention]
[0010] In the knitting method for a tubular knitted fabric of the present invention, a first stitch is knitted one stitch below the end stitch of the first knitted fabric portion, and then a second stitch is knitted that is pulled out from the first stitch by split knitting. As a result, the knitting yarn connecting the second stitch and the first stitch is wrapped around the first stitch, making it difficult for the first stitch to move. In addition, in the knitting method for a tubular knitted fabric of the present invention, a double stitch is formed by overlapping the first stitch and the second stitch, and the end stitch is knitted following the double stitch in the wale direction, so that the first stitch, which has become difficult to move due to the knitting yarn being wrapped around it, is fixed with the end stitch. In other words, in the knitting method for a tubular knitted fabric of the present invention, fray prevention is performed not on the end stitch but on the first stitch one stitch below the end stitch. Because the first stitch is sufficiently resistant to fraying, there is no need to manually tighten the knitting yarn wrapped around the first stitch. The end stitch following the wale direction of the first stitch, which is resistant to fraying, also becomes resistant to fraying.
[0011] the above <2> In the knitting method for a tubular knitted fabric described in , a new second stitch is knitted in the wale direction following the second stitch knitted in process D. In this case, as will be shown in the embodiment described later, the knitting yarn is wrapped around the first stitch twice, making the first stitch even less likely to fray. Also, the knitting direction of the second stitch in process D and the knitting direction of the new second stitch in process X are the same. In this case, as will be shown in the embodiment described later, the knitting yarn is wrapped around each of the right and left parts of the first stitch once, making the first stitch less likely to distort and resulting in a neat finish.
[0012] the above <3> In the knitting method for a tubular knitted fabric described in , the knitting direction of the first stitch is a first direction, and the knitting direction of the terminal stitch following the first stitch in the wale direction is a second direction. The first stitch knitted toward the first direction is likely to be pulled in the first direction, and the terminal stitch knitted toward the second direction is likely to be pulled in the second direction. The tension acting on the first stitch and the tension acting on the terminal stitch are almost offset, and the first stitch and the terminal stitch are likely to be straight in the wale direction. [Brief explanation of the drawings]
[0013] [Figure 1] FIG. 1 is a schematic diagram of knitwear, which is an example of a tubular knitted fabric according to an embodiment. [Figure 2] FIG. 2 is a first knitting process diagram illustrating a method for knitting a tubular knitted fabric according to the embodiment. [Figure 3] FIG. 3 is a second knitting process diagram following FIG. [Figure 4] FIG. 4 is a schematic diagram of a knitwear according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0014] Hereinafter, a method for knitting a tubular knitted fabric according to an embodiment will be described with reference to the drawings.
[0015] <Embodiment 1> In embodiment 1, an example of knitting a tubular knitted fabric 1 shown in FIG. 1 using the tubular knitted fabric knitting method of the present invention will be described. The tubular knitted fabric 1 of this example is knitwear having a body with an intarsia pattern. The body has a base knitted fabric portion 2 that occupies the majority of the body, and multiple first knitted fabric portions 3, 4 that form the intarsia pattern. The base knitted fabric portion 2 and the first knitted fabric portions 3, 4 are different in color. The first knitted fabric portion 3 and the first knitted fabric portion 4 may be the same in color or different in color. The feeder for knitting the base knitted fabric portion 2 is different from the feeder for knitting the first knitted fabric portions 3, 4. The feeder for knitting the first knitted fabric portion 3 and the feeder for knitting the first knitted fabric portion 4 may be the same in color or different in color. When the first knitted fabric portion 3 and the first knitted fabric portion 4, which are different in color, are knitted using a single feeder, the knitting yarn fed from the feeder includes, for example, a first yarn and a second yarn connected by a splicer.
[0016] The first knitted fabric portions 3, 4 in this example have a diamond shape. At the bottom end of the diamond shape, start stitches 3S, 4S, which are the first stitches of the first knitted fabric portions 3, 4, are arranged. At the top end of the diamond shape, end stitches 3E, 4E, which are the last stitches of the first knitted fabric portions 3, 4, are arranged. The shape of the first knitted fabric portions 3, 4 may be a shape other than a diamond shape, for example, a rectangular shape or a circular shape.
[0017] The tubular knitted fabric 1 is knitted from the hem position of the body. First, a part of the base knitted fabric portion 2 is knitted in a tubular shape. Next, a part of the base knitted fabric portion 2 is knitted in a C-shape, and a first knitted fabric portion 3 is knitted in the center part of the base knitted fabric portion 2 in the knitting width direction. After knitting of the first knitted fabric portion 3 is completed, a part of the base knitted fabric portion 2 is knitted in a tubular shape. Thereafter, a part of the base knitted fabric portion 2 is knitted in a C-shape, and a first knitted fabric portion 4 is knitted in the center part of the base knitted fabric portion 2 in the knitting width direction. The first knitted fabric portion 4 is knitted in the same way as the first knitted fabric portion 3.
[0018] In this example, by the knitting method for a tubular knitted fabric of the present invention, the knitting yarn that constitutes the first knitted fabric portion 3 is fixed to the first knitted fabric portion 3 before knitting the terminal stitch 3E of the first knitted fabric portion 3, and the knitting yarn that constitutes the first knitted fabric portion 4 is fixed to the first knitted fabric portion 4 before knitting the terminal stitch 4E of the first knitted fabric portion 4. Below, based on Figures 2 and 3, an example of knitting a yarn output portion in which the knitting yarn that constitutes the first knitted fabric portion 3 is fixed to the tubular knitted fabric 1 before knitting the terminal stitch 3E of the first knitted fabric portion 3 will be described. The knitting example shown in Figures 2 and 3 is intended to prevent the knitting yarn 9Y that constitutes the yarn output portion from fraying.
[0019] The flat knitting machine used in this example is a four-bed flat knitting machine. The four-bed flat knitting machine has a lower first needle bed, a lower second needle bed, an upper first needle bed, and an upper second needle bed. Hereinafter, the lower first needle bed, the lower second needle bed, the upper first needle bed, and the upper second needle bed will be referred to as FD, BD, FU, and BU, respectively. The FD and BD face each other. The FU, which is arranged above the FD, and the BU, which is arranged above the BD, face each other. The FD and FU, and the BD and BU can be racked relative to each other. No BU is used in the first embodiment. The flat knitting machine may also be a two-bed flat knitting machine. The knitting needles provided in the flat knitting machine are compound needles comprising a needle body having a hook and a slider that opens and closes the hook. The slider has two blades that sandwich the needle body. The compound needles may be equipped with a holding mechanism that temporarily holds the stitches on the slider.
[0020] The "S + number" in the left column of Figures 2 and 3 indicates the knitting step number. The right column shows the knitting state in each knitting step. The black dots in the right column indicate the knitting needles for FD, BD, and FU. The knitting needles for BU are not shown. The diamond marks in the right column indicate the stitches of the base knitted fabric section 2 in Figure 1, and the circle marks indicate the stitches of the first knitted fabric section 3. The inverted triangle marks indicate the first feeder 9. In this example, the portion of the base knitted fabric section 2 that is engaged with the BD is called the existing stitch row 5. The parts related to the knitting operation of each knitting step are shown in thick lines. The right-pointing arrows and left-pointing arrows outside the column indicate the first direction R1 and the second direction R2, respectively. The first direction R1 and the second direction R2 are the movement directions of the first feeder 9 along the length direction of the needle bed.
[0021] Step S0 in Fig. 2 shows a state in which the third-to-last knitting course of the first knitted fabric portion 3 in Fig. 1 has been knitted. This knitting course corresponds to the vicinity of the top end of the diamond shape. In the knitting process from this state onwards, the second-to-last knitting course including the first stitch 11 is knitted, and then the final knitting course including the terminal stitch 3E is knitted. In this example, the second knitting course consists of the first stitch 11, and the final knitting course consists of the terminal stitch 3E.
[0022] In step S0, the stitches of the first knitted fabric portion 3 are held on knitting needles E, F, and G of FD. The stitches of the base knitted fabric portion 2 are held on knitting needles A, B, C, D, H, I, J, and K of FD, and knitting needles A to K of BD. The base knitted fabric portion 2 is knitted in a C-shape. The base knitted fabric portion 2 and the first knitted fabric portion 3 are knitted in an all-needle state. An all-needle state is a state in which there are no empty needles between stitches adjacent in the knitting width direction. In step S0, the connections between the stitches are illustrated, but in steps S1 and later, the connections between the stitches shown in step S0 are omitted.
[0023] In step S1, the first feeder 9 is moved in the first direction R1, and a tuck stitch 10 is knitted on the knitting needle D of FD, and then a first stitch 11 immediately before the terminal stitch 3E (see Figure 1) is knitted (process A). The first stitch 11 is the stitch of the second-to-last knitting course of the first knitted fabric portion 3. As will be described later, the terminal stitch 3E is knitted in the wale direction of this first stitch 11. In other words, the first stitch 11 is the stitch that is knitted in succession to the terminal stitch 3E in the wale direction, that is, the stitch that serves as the base of the terminal stitch 3E. The tuck stitch 10 connects the base knitted fabric portion 2 and the first knitted fabric portion 3 in the knitting width direction. The tuck stitch 10 makes it easier to knit the first stitch 11. The tuck stitch 10 is not essential.
[0024] In step S2, the first feeder 9 is moved in a second direction R2 and stopped at a position beyond the first stitch 11. The second direction R2 is the opposite direction to the first direction R1.
[0025] In step S3, the specific stitch 50 held on the knitting needle F of BD is moved to the knitting needle G of FU, and the knitting needle F becomes an empty needle (process B). The specific stitch 50 is a stitch that is in the vicinity of the first stitch 11 at the time of step S2. The specific stitch 50 may be a stitch that is in a position facing the first stitch 11, or may be a stitch that is one to two stitches away from the stitch that is in the facing position. The knitting needle F of BD is the specific knitting needle 6 on which the specific stitch 50 was held. Here, if the knitting needle is a compound needle equipped with a holding mechanism, the specific stitch 50 may be temporarily placed on the compound needle of FD on which a stitch is already held.
[0026] Furthermore, in step S3, the first stitch 11 is moved to the specific knitting needle 6 that has become an empty needle (process C). By retracting the first feeder 9 to the second direction R2 side in step S2, it is possible to prevent the knitting yarn 9Y from becoming entangled with the first stitch 11 when the first stitch 11 is moved in step S3.
[0027] In step S4, the first feeder 9 is moved in the first direction R1 and stopped at a position beyond the first stitch 11. In step S5, the first feeder 9 is moved in the second direction R2 and split knitting is performed on the first stitch 11 (process D). Split knitting is a well-known knitting method. In this example, the first stitch 11 held on the knitting needle F of BD, i.e., the specific knitting needle 6, is moved to the knitting needle F of FD, and the knitting yarn 9Y is pulled out from the first stitch 11 to form the second stitch 12. The second stitch 12 is held on the specific knitting needle 6.
[0028] In this example, after the first stitch 11 is knitted in the first direction R1 in step S1, the second stitch 12 is knitted in the second direction R2 in step S5. Therefore, the knitting yarn connecting the second stitch 12 and the first stitch 11 is wound around the part of the first stitch 11 on the first direction R1 side. The winding of the first knitting yarn 9Y around the first stitch 11 makes it difficult for the first stitch 11 to move.
[0029] Unlike this example, after step S3, the first feeder 9 may be moved in the first direction R1 to perform split knitting on the first stitch 11. In this case, the knitting yarn connecting the second stitch 12 and the first stitch 11 is wound around the part of the first stitch 11 on the second direction R2 side.
[0030] In step S6, the first feeder 9 is moved in the first direction R1 and stopped at a position beyond the second stitch 12. In step S7 of FIG. 3, the first feeder 9 is moved in the second direction R2 and a new second stitch 12 is knitted that continues in the wale direction of the second stitch 12 (process X). By knitting the new second stitch 12, the second stitch 12 knitted by split knitting in step S5 is released from the needle bed. Furthermore, by knitting the new second stitch 12, the knitting yarn connecting the second stitch 12 knitted in step S5 and the first stitch 11 is also wound around the portion of the first stitch 11 on the second direction R2 side. The winding of the second knitting yarn 9Y around the first stitch 11 makes the first stitch 11 even more resistant to fraying. In particular, in this example, the knitting yarn 9Y is wound once around each of the right and left portions of the first stitch 11, making the first stitch 11 less likely to distort and resulting in a neat finish. If the first stitch 11 is finished neatly, the terminal stitch 3E continuing in the wale direction of the first stitch 11 will also be finished neatly.
[0031] Furthermore, in step S7, a tuck stitch 15 is knitted on the FD knitting needle C. The tuck stitch 15 is knitted to connect the base knitted fabric portion 2 and the first knitted fabric portion 3 in the knitting width direction.
[0032] In step S8, the first feeder 9 is moved in the first direction R1 and stopped at a position beyond the second stitch 12. In step S9, the second stitch 12 held on the knitting needle F of BD is moved to the knitting needle F of FD. That is, the second stitch 12 is overlapped on the first stitch 11 to form an overlapping stitch 13 (step E). The second stitch 12 is hidden on the back side of the tubular shape of the tubular knitted fabric 1 and is not easily noticeable.
[0033] In step S10, the first feeder 9 is moved in the second direction R2 and stopped at a position beyond the double stitch 13. In step S11, the specific stitch 50 is returned to the specific knitting needle 6 (process F). By retracting the first feeder 9 to the second direction R2 side in step S10, it is possible to prevent the knitting yarn 9Y from becoming entangled when the specific stitch 50 moves in step S11.
[0034] In step S12, the first feeder 9 is moved in the first direction R1 and stopped at a position beyond the double stitch 13. In step S13, the first feeder 9 is moved in the second direction R2 and a tuck stitch 16 is knitted on the knitting needle G of FD. Furthermore, in step S13, the terminal stitch 3E is knitted in the wale direction following the double stitch 13. By moving the first feeder 9 in step S12, the knitting direction of the terminal stitch 3E can be set to the second direction R2. By knitting the terminal stitch 3E in the wale direction following the double stitch 13, the first stitch 11, which has become difficult to move due to the knitting yarn 9Y being wound around it twice, is fixed. In other words, in this example, fray prevention is performed on the first stitch 11, which is a stitch other than the terminal stitch 3E. The terminal stitch 3E, which is difficult to fray and follows the first stitch 11 in the wale direction, also becomes difficult to fray.
[0035] In this example, the first stitch 11 is knitted in the first direction R1 (see step S1 in Fig. 2), and the terminal stitch 3E is knitted in the second direction R2. The first stitch 11 knitted in the first direction R1 is likely to be pulled in the first direction R1, and the terminal stitch 3E knitted in the second direction R2 is likely to be pulled in the second direction R2. The tension acting on the first stitch 11 and the tension acting on the terminal stitch 3E cancel each other out, and the first stitch 11 and the terminal stitch 3E tend to straighten in the wale direction.
[0036] Through the knitting process described above, the first knitted fabric portion 3 is knitted, and the knitting yarn 9Y constituting the first knitted fabric portion 3 is prevented from fraying at the first stitch 11 of the first knitted fabric portion 3. After knitting of the first knitted fabric portion 3 is completed, the knitting yarn 9Y extending from the first feeder 9 may be connected to the base knitted fabric portion 2 by a tuck.
[0037] As another embodiment, as shown in Fig. 4, the knitting method for a tubular knitted fabric of the present invention may be applied to knitting a tubular knitted fabric 1 having a rectangular first knitted fabric portion 3. In Fig. 4, the final course of the first knitted fabric portion 3 is knitted toward the right side of the paper. In this case, the terminal stitch 3E is knitted so as to be hidden on the back side of the base knitted fabric portion 2. In this way, the appearance of the first knitted fabric portion 3 on the front side of the tubular knitted fabric 1 is not impaired.
[0038] The flat knitting machine may be a flat knitting machine equipped with a transfer bed above each of the FD and BD. In this case, the transfer bed arranged above the FD is considered to be the first needle bed, and the transfer bed arranged above the BD is considered to be the second needle bed. [Explanation of symbols]
[0039] 1. Tubular knit fabric 10, 15, 16 tucks 11 First stitch, 12 Second stitch, 13 Double stitch 2 Base knitted fabric part 3,4 First knitted part 3E,4E end stitch, 3S,4S start end stitch 5 Existing stitch row 50 specific stitches 6 Specific knitting needles 9 First feeder, 9Y knitting yarn R1 First direction R2 Second direction
Claims
1. A method for knitting a tubular knitted fabric, in which a tubular knitted fabric including a first knitted fabric portion is knitted in an all-needle state using a flat knitting machine having a first needle bed and a second needle bed facing the first needle bed, a fray prevention step of fixing a knitting yarn extending from a first feeder used for knitting the first knitted fabric section to the first stitch when knitting a first stitch that is one stitch below the terminal stitch of the first knitted fabric section on the first needle bed, The fray prevention step includes: a step A of moving the first feeder in a first direction and knitting the first stitch; A step B of moving a specific stitch that is in the vicinity of the first stitch among the existing stitch rows held on the second needle bed at the time before the step A is performed to the first needle bed, and making the specific knitting needle on which the specific stitch was held an empty needle; A step C of moving the first stitch to the specific knitting needle; A step D of split knitting the first stitch and knitting a second stitch drawn out from the first stitch on the specific knitting needle; a step E of forming a double stitch by overlapping the second stitch with the first stitch; and a step F of returning the specific stitch to the specific knitting needle, The terminal stitch is knitted continuously in the wale direction of the double stitch. A method for knitting a tubular knitted fabric.
2. 2. The method for knitting a tubular knitted fabric according to claim 1, further comprising, after step D and before step E, step X of moving the first feeder in the same direction as the knitting direction of the second stitch and knitting a new second stitch that continues in the wale direction of the second stitch.
3. The method for knitting a tubular knitted fabric according to claim 1 or 2, wherein the terminal stitch is knitted by moving the first feeder in a second direction opposite to the first direction.
Citation Information
Patent Citations
Trapping of knitting yarn in intersia knitting fabric
JP2000199157A
Method for preventing raveling of knitting yarn, and knitted fabric
JP2015017352A
Method for preventing raveling of knitted fabric
JP2015161053A
Method for preventing unraveling of knitting yarn
JP2017186694A
Process for knitting tubular fabric on a flat bed knitting machine
US5487282A