DE102023127960A1 - Method for knitting a tubular fabric - Google Patents

Abstract

The present invention enables prevention of fraying of a knitting thread extending from a first yarn guide used for knitting a first knitted part included in a tubular knit. The first yarn guide is moved in a first direction, and a first stitch is formed. A specified stitch, which is an existing course held on a second needle bed of a flat knitting machine and is located adjacent to the first stitch, is moved to a first needle bed so that a specified needle that has held the specified stitch becomes an empty needle. The first stitch is moved to the specified knitting needle. Pitch knitting is performed on the first stitch to form a second stitch pulled from the first stitch. A double stitch is formed by placing the second stitch on the first stitch. The specified stitch is returned to the specified needle. The final stitch is formed in such a way that it follows the double stitch in the wale direction.

Description

Technical area

The present invention relates to a method for knitting a tubular fabric in which fraying of a knitting thread on a flat knitting machine is prevented.

State of the art

When a flat knitting machine with multiple yarn guides is used to knit a knitted fabric having a stripe pattern, an intarsia pattern, or the like, knitting yarns must be changed. When knitting yarns are changed, the knitting yarns must be fixed to the knitted fabric to prevent the knitting yarns from fraying. In Patent Literature 1, fraying of a knitting yarn is prevented by forming a knot with the knitting yarn on a flat knitting machine.

Reference list

Patent literature

Patent Literature 1: JP2017-186694A

Summary of the invention

Technical problem

In the method described in Patent Literature 1, after a knot is formed in the knitting yarn by the flat knitting machine, the knot must be manually tightened. When there are many knitting yarn changing points, such manual work becomes troublesome.

It is an object of the present invention to provide a method for knitting a tubular knitted fabric in which fraying of a knitting thread can be suppressed without requiring manual work.

Troubleshooting

• ein Verfahren zum Stricken eines Schlauchgestricks, in dem ein Schlauchgestrick, das einen ersten Gestrickteil umfasst, in einem Vollfeinheitszustand (Full-Gauge-State) unter Verwendung einer Flachstrickmaschine gestrickt wird, die ein erstes Nadelbett und ein dem ersten Nadelbett gegenüberliegendes zweites Nadelbett aufweist, wobei das Verfahren umfasst:
  • einen Ausfransungsverhinderungsschritt zum, wenn eine erste Masche unmittelbar unter einer Endmasche des ersten Gestrickteils an dem ersten Nadelbett gebildet wird, Fixieren, an der ersten Masche, eines Strickfadens, der sich von einem für das Stricken des ersten Gestrickteils verwendeten Fadenführer erstreckt,
  • wobei der Ausfransungsverhinderungsschritt umfasst:
    • einen Schritt A zum Bewegen des ersten Fadenführers in einer ersten Richtung und zum Bilden der ersten Masche,
    • einen Schritt B zum Bewegen, innerhalb von Maschen in einer bestehenden Maschenreihe, die an dem zweiten Nadelbett zu einer Zeit vor der Ausführung des Schritts A gehalten wird, einer spezifizierten Masche, die in Nachbarschaft zu der ersten Masche angeordnet ist, zu dem ersten Nadelbett, sodass eine spezifizierte Nadel, die die spezifizierte Masche gehalten hat, eine leere Nadel wird,
    • einen Schritt C zum Bewegen der ersten Masche zu der spezifizierten Stricknadel,
    • einen Schritt D zum Durchführen eines Teilungsstrickens an der ersten Masche, um an der spezifizierten Nadel eine von der ersten Masche gezogene zweite Masche zu bilden,
    • einen Schritt E zum Bilden einer doppelten Masche durch das Platzieren der zweiten Masche auf der ersten Masche, und
    • einen Schritt F zum Zurückführen der spezifizierten Masche zu der spezifizierten Stricknadel,
    • wobei die Endmasche derart gebildet wird, dass sie der doppelten Masche in einer Maschenstäbchenrichtung folgt.

<1> A method of knitting a tubular fabric according to an aspect of the present invention is:

• a method of knitting a tubular fabric in which a tubular fabric comprising a first knitted part is knitted in a full-gauge state using a flat knitting machine having a first needle bed and a second needle bed opposite the first needle bed, the method comprising:
  • a fraying preventing step of, when a first stitch is formed immediately under an end stitch of the first knitted part on the first needle bed, fixing, to the first stitch, a knitting thread extending from a thread guide used for knitting the first knitted part,
  • wherein the fraying prevention step comprises:
    • a step A for moving the first yarn guide in a first direction and for forming the first stitch,
    • a step B of moving, within stitches in an existing stitch row held on the second needle bed at a time before the execution of step A, a specified stitch located adjacent to the first stitch to the first needle bed so that a specified needle having held the specified stitch becomes an empty needle,
    • a step C for moving the first stitch to the specified knitting needle,
    • a step D of performing division knitting on the first stitch to form a second stitch drawn from the first stitch on the specified needle,
    • a step E for forming a double stitch by placing the second stitch on the first stitch, and
    • a step F for returning the specified stitch to the specified knitting needle,
    • wherein the final stitch is formed such that it follows the double stitch in a wale direction.

Here, the first stitch is the stitch that serves as a base for forming the final stitch. In other words, the first stitch is the stitch at which the final stitch following in the wale direction is formed. In the method for knitting a tubular fabric according to this aspect of the present invention, the final stitch is formed so as to follow a double stitch containing the first stitch in the wale direction. Either step A or step B may be performed first.

<2> In the method of knitting a tubular fabric according to the above-described item <1>, the fraying prevention step further comprise a step X of, at a time after step D and before step E, moving the first yarn guide in the same direction as the knitting direction of the second stitch and forming a new second stitch following in the wale direction the second stitch formed in step D.

<3> In the method of knitting a tubular fabric according to the above-described item <1> or <2>, the terminal loop may be formed by moving the first yarn guide in a second direction opposite to the first direction.

Effects of the invention

In the method of knitting a tubular fabric according to the present invention, the first stitch located immediately below the end stitch of the first knitted part is formed, and then the second stitch drawn from the first stitch is formed by pitch knitting. As a result, the knitting thread connecting the second stitch and the first stitch is wound around the first stitch, thereby making the first stitch unlikely to move. Furthermore, in the method of knitting a tubular fabric according to the present invention, a double stitch including the first stitch and the second stitch is formed, and the end stitch is formed so as to follow the double stitch in the wale direction, so that the first stitch, which is unlikely to move due to the knitting thread wound around it, is fixed by the end stitch. In other words, in the method of knitting a tubular fabric according to the present invention, fraying prevention is performed not on the end stitch but on the first stitch immediately following the end stitch. Because fraying of the first stitch is sufficiently suppressed, the winding of the knitting thread around the first stitch does not need to be manually tightened. And because fraying of the first stitch is suppressed, fraying of the final stitch following the first stitch in the wale direction is also suppressed.

In the method of knitting a tubular fabric according to the above-described item <2>, a new second stitch is formed so as to follow the second stitch formed in the step D in the wale direction. In this case, as shown in an embodiment described later, since the knitting thread is wound twice around the first stitch, fraying of the first stitch is further suppressed. In addition, the knitting direction of the second stitch in the step D and the knitting direction of the new second stitch in the step X are the same. At this time, as shown in an embodiment described later, the knitting thread is wound once around the right part of the first stitch and once around the left part of the first stitch, so that the first stitch is unlikely to be distorted and has a neat finished appearance.

In the method of knitting a tubular fabric according to the above-described item <3>, the knitting direction of the first stitch is a first direction, and the knitting direction of the end stitch following the first stitch in the wale direction is a second direction. The first stitch formed in the first direction can be easily pulled in the first direction, and the end stitch formed in the second direction can be easily pulled in the second direction. The tension acting on the first stitch and the tension acting on the end stitch substantially cancel each other, and the first stitch and the end stitch are likely to be straight in the wale direction.

Short description of the drawings

• 1 is a schematic view of a knitted fabric serving as an example of a tubular knitted fabric according to an embodiment.
• 2 is a first knitting process diagram showing a method of knitting a tubular knit fabric according to an embodiment.
• 3 is a second knitting process diagram based on the steps of 2 shows the following steps.
• 4 is a schematic view of a knitted fabric according to another embodiment.

Description of embodiments

In the following, embodiments of a method for knitting a tubular fabric will be described with reference to the drawings.

First embodiment

In the first embodiment, an example of knitting a 1 by a method of knitting a tubular knitted fabric according to the present invention. The tubular knitted fabric 1 in this example is a knitted fabric having a body containing an intarsia pattern. The body comprises a base knitted part 2 which occupies most of the body and first knitted parts 3 and 4 which form an intarsia pattern. The color of the base knitted part 2 is different from the colors the first knitted parts 3 and 4. The color of the first knitted part 3 and the color of the first knitted part 4 may be the same or different. The thread guide for knitting the base knitted part 2 is different from the thread guides for knitting the first knitted parts 3 and 4. The thread guide for knitting the first knitted part 3 and the thread guide for knitting the first knitted part 4 may be the same or different. When a single thread guide is used for knitting the first knitted part 3 and the first knitted part 4 in different colors, the knitting thread fed by the thread guide comprises a first thread and a second thread which have been spliced together, for example by a splicer.

The first knitted pieces 3 and 4 in this example have a diamond shape. Starting stitches 3S and 4S, which are the first stitches of the first knitted pieces 3 and 4, are arranged at the lower end of the corresponding diamond shape. Ending stitches 3E and 4E, which are the last stitches of the first knitted pieces 3 and 4, are arranged at the upper end of the corresponding diamond shape. Note that the first knitted pieces 3 and 4 can also have a shape other than a diamond shape, such as a rectangular shape or a circular shape.

The knitting of the tubular knitted fabric 1 starts from the hem of the body. First, a part of the base knitted fabric 2 is knitted in a tubular shape. Then, a part of the base knitted fabric 2 is knitted in a C-shape, and the first knitted fabric 3 is knitted in the central part of the base knitted fabric 2 with respect to the knitting width direction. When the knitting of the first knitted fabric 3 is finished, a part of the base knitted fabric 2 is knitted in a tubular shape. After that, a part of the base knitted fabric 2 is knitted in a C-shape, and the first knitted fabric 4 is knitted in the central part of the base knitted fabric 2 with respect to the knitting width direction. The knitting of the first knitted fabric 4 is carried out similarly to the knitting of the first knitted fabric 3.

In the method of knitting a tubular fabric of this embodiment of the present invention, the knitting thread constituting the first knitted part 3 is fixed to the first knitted part 3 before the end stitch 3E of the first knitted part 3 is knitted, and the knitting thread constituting the first knitted part 4 is fixed to the first knitted part 4 before the end stitch 4E of the first knitted part 4 is knitted. Next, referring to 2 and 3 an example of knitting a thread lead-out part, which serves for fixing the knitting thread forming the first knitted part 3 to the tubular knitted fabric 1, before knitting the end stitch 3E of the first knitted part 3 is described. The 2 and 3 The knitting example shown prevents fraying of the knitting thread 9Y forming the thread lead-out part.

The flat knitting machine used in this example is a four-bed flat knitting machine. The four-bed flat knitting machine includes a lower first needle bed, a lower second needle bed, an upper first needle bed, and an upper second needle bed. The lower first needle bed, the lower second needle bed, the upper first needle bed, and the upper second needle bed are hereinafter referred to as FD, BD, FU, and BU, respectively. The FD and the BD are opposed to each other. The FU, which is arranged above the FD, and the BU, which is arranged above the BD, are opposed to each other. The FD and the FU can be offset relative to the BD and the BU. The BU is not used in the first embodiment. The flat knitting machine used in this embodiment may also be a two-bed flat knitting machine. The knitting needles provided in a flat knitting machine are slider needles comprising a needle body, a hook provided in the needle body, and a slider for opening and closing the hook. The slider has two blades on opposite sides of the needle body. The slider needle may include a holding mechanism for temporarily holding a stitch on the slider.

The letter S and the following number in the left column of 2 and 3 indicate the knitting step number. The right column shows the knitting state in each knitting step. The black dots in the right column indicate knitting needles of the FD, BD and FU. The knitting needles of the BU are not shown. The diamond-shaped markings in the right column indicate stitches of the basic knitted part 2 of 1 and the circular marks indicate stitches of the first knitted part 3. The mark in the shape of an inverted triangle indicates a first thread guide 9. In this example, an existing stitch row 5 is understood to be a part of the basic knitted part 2 held by the BD. The part involved in the knitting operation in each knitting step is represented by a thick line. The capital letters in the margin indicate the positions of the knitting needles. The arrows pointing to the right and left in the margin indicate a first direction R1 and a second direction R2, respectively. The first direction R1 and the second direction R2 are directions of movement of the first thread guide 9 along the longitudinal direction of the needle bed.

In 2 Step S0 shows a state in which the third last knitting row of the first knitted part 3 of 1 was knitted. This knitting row corresponds to the upper end of the diamond shape. In After the knitting steps performed in this state, a penultimate knitting row containing a first stitch 11 is knitted and then the last knitting row containing the final stitch 3E is knitted. In this example, the second knitting row consists of the first stitch 11 and the last knitting row consists of the final stitch 3E.

In the step S0, the loops of the first knitted part 3 are held on the knitting needles E, F and G of the FD. The loops of the base knitted part 2 are held on the knitting needles A, B, C, D, H, I, J and K of the FD and on the knitting needles A to K of the BD. The base knitted part 2 is knitted in a C-shape. The base knitted part 2 and the first knitted part 3 are knitted in a full-gauge state. The full-gauge state is a state in which there are no empty needles between adjacent loops in the knitting width direction. The connections between the loops are shown in the step S0, while the connections between the loops are not shown from the step S1 onwards.

In step S1, the first yarn guide 9 is moved in the first direction R1, a tuck stitch 10 is knitted on the knitting needle D of the FD and then the first stitch 11 is knitted immediately below the end stitch 3E (see 1 ) (step A). The first stitch 11 is the stitch of the second to last knitting row of the first knitted part 3. As described below, the end stitch 3E is formed such that it follows the first stitch 11 in the wale direction. In other words, the first stitch 11 is the stitch followed by the end stitch 3E in the wale direction and thus the stitch that serves as the base of the end stitch 3E. The tuck stitch 10 serves to connect the base knitted part 2 to the knitted part 3 in the knitting width direction. The tuck stitch 10 simplifies the knitting of the stitch 11. However, the tuck stitch 10 is not essential.

In the step S2, the first yarn guide 9 is moved in the second direction R2 and then the first yarn guide 9 is stopped at a position behind the first stitch 11. The second direction R2 is the direction opposite to the first direction R1.

In the first step S3, a specified stitch 50 held on the knitting needle F of the BD is moved to the knitting needle G of the FU so that the knitting needle F becomes an empty needle (step B). The specified stitch 50 is a stitch adjacent to the first stitch 11 at the time of step S2. The specified stitch 50 may be a stitch at a position opposite to the first stitch 11 or a stitch one or two positions away from the stitch opposite to the first stitch. The knitting needle F of the BD is a specified knitting needle 6 on which the specified stitch 50 has been held. When the knitting needle is a slide needle having a holding mechanism, the specified stitch 50 may be temporarily held on the slide needle of the FD on which a stitch is already held.

Then, in the step S3, the first loop 11 is moved to the specified knitting needle 6 which has become an empty loop (step C). When the first yarn guide 9 is retracted in the second direction R2 in the step S2, the knitting yarn 9Y can be prevented from being entangled with the first loop 11 during the movement of the first loop 11 in the step S3.

In step S4, the first yarn guide 9 is moved in the first direction R1, and the first yarn guide 9 is stopped at a position behind the first stitch 11. In step S5, the first yarn guide 9 is moved in the second direction R2, and pitch knitting is performed on the first stitch 11 (step D). Pitch knitting is a known knitting technique. In this example, the first stitch 11 held on the knitting needle F (the specified knitting needle 6) of the BD is moved to the knitting needle F of the FD, and the knitting yarn 9Y is pulled out from the first stitch 11 to form a second stitch 12. The second stitch 12 is held on the specified knitting needle 6.

In this example, after the first stitch 11 is formed in the first direction R1 in the step S1, the second stitch 12 is formed in the second direction R2 in the step S5. For this reason, the knitting thread connecting the second stitch 12 and the first stitch 11 is wound around a part of the stitch 11 on the side of the first direction R1. Because of this first winding of the knitting thread 9Y around the first stitch 11, the stitch 11 is unlikely to move.

As an alternative to this example, after the first step S3, the first yarn guide 9 may be moved in the first direction R1 when a pitch knitting is performed on the first stitch 11. In this case, the knitting yarn connecting the second stitch 12 and the first stitch 11 is wound around a part of the first stitch 11 on the side of the second direction R2.

In step S6, the first thread guide 9 is moved in the first direction R1 and the first thread guide 9 is stopped at a position behind the second stitch 12. In step S7 of 3 the first thread guide 9 in the second direction R2, and a new second stitch 12 is formed so as to follow the preceding second stitch 12 in the wale direction (step X). Due to the formation of the new second stitch 12, the second stitch formed by the pitch knitting in the step S5 is dropped from the needle bed. And due to the formation of the new second stitch 12, the knitting thread connecting the second stitch 12 formed in the step S5 to the first stitch 11 is also wound around a part of the first stitch 11 on the second direction R2 side. Winding the second knitting thread 9Y around the first stitch 11 further suppresses fraying of the first stitch 11. Specifically, in this example, the knitting thread 9Y is wound once around the right part of the first stitch 11 and once around the left part thereof, so that the first stitch 11 is unlikely to be distorted and has a neat appearance. If the first stitch 11 has a neat appearance, the end stitch 3E following the first stitch 11 in the wale direction also has a neat appearance.

Then, in step S7, a tuck stitch 15 is formed on the knitting needle C of the FD. The tuck stitch 15 is a stitch formed to connect the base knitted part 2 with the first knitted part 3 in the knitting width direction.

In the step S8, the first yarn guide 9 is moved in the first direction R1, and the first yarn guide 9 is stopped at a position behind the second loop 12. In the step S9, the second loop 12 held on the knitting needle F of the BD is moved to the knitting needle F of the FD. In other words, a double loop 13 is formed by placing the second loop 12 on the first loop 11 (step E). The second loop 12 is hidden on the inside of the tubular shape of the tubular knitted fabric 1 and is unlikely to be noticed.

In the step S10, the first yarn guide 9 is moved in the second direction R2, and the first yarn guide 9 is stopped at a position behind the double stitch 13. In the step S11, the specified stitch 50 is returned to the specified knitting needle 6 (step F). When the first yarn guide 9 is retracted in the second direction R2 in the step S10, entanglement of the knitting yarn 9Y during the movement of the specified stitch 50 in the step S11 can be prevented.

In the step S12, the first yarn guide 9 is moved in the first direction R1, and the first yarn guide 9 is stopped at a position behind the double stitch 13. In the step S13, the first yarn guide 9 is moved in the second direction R2, and the tuck stitch 16 is formed on the knitting needle G of the FD. Further, in the step S13, the end stitch 3E is formed so as to follow the double stitch 13 in the wale direction. Due to the movement of the first yarn guide 9 in the step S12, the knitting direction of the end stitch 3E can be set to the second direction R2. And because the end stitch 3E is formed so as to follow the double stitch 13 in the wale direction, the first stitch 11, which is unlikely to move due to the two-time winding of the knitting thread 9Y around it, is fixed. In other words, in this example, fraying prevention is performed on the first stitch 11 which is a stitch other than the end stitch 3E. Because fraying of the first stitch 11 is suppressed, fraying of the end stitch 3E which follows the first stitch 11 in the wale direction is also suppressed.

In this example, the first stitch 11 is knitted in the first direction R1 (see step S1 in 2 ) and the end stitch 3E is formed in the second direction R2. The first stitch 11 formed in the first direction R1 can be easily pulled in the first direction R1, and the end stitch 3E formed in the second direction R2 can be easily pulled in the second direction R2. The tension acting on the first stitch 11 and the tension acting on the end stitch 3E cancel each other, and the first stitch 11 and the end stitch 3E are likely to be straight in the wale direction.

According to the knitting steps described above, the first knitted part 3 is knitted, and fraying of the knitting thread 9Y constituting the first knitted part 3 is prevented at the first stitch 11 of the first knitted part 3. After the knitting of the first knitted part 3 is completed, the knitting thread 9Y extending from the first yarn guide 9 can be connected to the base knitted part 2 by catching.

In another embodiment, as in 4 shown the method for knitting a tubular knitted fabric according to the present invention can be applied to the knitting of a tubular knitted fabric 1 comprising a rectangular first knitted part 3. In 4 the final row of the knitted part 3 is knitted to the right side in the drawing. In this case, the knitting is carried out such that the final stitch 3E is hidden behind the base knitted part 2. According to this configuration, deterioration of the appearance of the first knitted part 3 on the front side of the tubular knitted fabric 1 can be prevented.

The flat knitting machine may be a flat knitting machine comprising transfer beds above the FD and the BD. In this case, the transfer bed above the FD is regarded as the first needle bed and the transfer bed above the BD is regarded as the second needle bed.

List of reference symbols

1

Tubular knit

10, 15, 16

Catch stitch

11

first stitch

12

second stitch

13

double stitch

2

Basic knitted part

3, 4

first knitted part

3E, 4E

End stitch

3S, 4S

Starting stitch

5

existing stitch row

50

specified mesh

6

specified knitting needle

9

first thread guide

9Y

knitting thread

R1

first direction

R2

second direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• JP 2017186694 A [0003]

Claims (3)

A method for knitting a tubular knitted fabric, with which a tubular knitted fabric (1) comprising a first knitted part (3) is knitted in a full-gauge state using a flat knitting machine having a first needle bed (FD) and a second needle bed (BD) opposite to the first needle bed (FD, FU), the method comprising: a fraying prevention step for, when a first stitch (11) is formed immediately below an end stitch (3E) of the first knitted part (3) on the first needle bed (FD), fixing, to the first stitch (11), a knitting thread (9Y) extending from a first thread guide (9) used for knitting the first knitted part (3), wherein the fraying prevention step comprises: a step A for moving the first thread guide (9) in a first direction (R1) and for forming the first stitch (11), a Step B for moving, within the stitches in an existing stitch row (5) held on the second needle bed (BD) at a time before the execution of the step A, a specified stitch (50) located adjacent to the first stitch (11) to the first needle bed (FU) such that a specified needle (6) having held the specified stitch (50) becomes an empty needle, a step C for moving the first stitch (11) to the specified knitting needle (6), a step D for performing division knitting on the first stitch (11) for forming, on the specified needle (6), a second stitch (12) pulled from the first stitch (11), a step E for forming a double stitch (13) by placing the second stitch (12) on the first stitch (11), and a step F for returning the specified Stitch (50) to the specified knitting needle (6), wherein the final stitch (3E) is formed such that it follows the double stitch (13) in the wale direction. Method for knitting a tubular fabric according to Claim 1 wherein the fraying preventing step further comprises a step X of, at a time after the step D and before the step E, moving the first yarn guide (9) in the same direction as the knitting direction of the second stitch (12) and forming a new second stitch (12) following in the wale direction the second stitch (12) formed in the step D. Method for knitting a tubular fabric according to Claim 1 or 2 , wherein the final stitch (3E) is formed by moving the first thread guide (9) in a second direction (R2) opposite to the first direction (R1).

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