JP2017089029A - Cylindrical knitted fabric including tightening part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylindrical knitted fabric including a tightening part which can change tightening force in both the wale direction and the circumferential direction of a ground knit texture without becoming stiff, without performing cut boss or cut sew; and to provide a method for knitting the same.SOLUTION: Knitting is performed by using a flat knitting machine including a pair of front and back needle beds, and an elastic yarn 7 is alternately and repeatedly subjected to tuck operation and miss operation to form line parts 151a and 151b so that the elastic yarn 7 passes alternately through the front and the back of a ground knit texture 14. In a first circumferential section 12a and a second circumferential section 12b of a tightening part 1, the line parts 151a and 151b the numbers of which are different from each other are provided. Thus, there are provided a cylindrical knitted fabric 100 including the tightening part and a method for knitting the same.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a tubular knitted fabric knitted by using a flat knitting machine having a pair of front and rear needle beds, and in particular, a tube having a tightening portion to which a tightening force is applied by knitting elastic yarn such as rubber yarn. Concerning the knitted fabric.

Conventionally, in a tubular knitted fabric having a support function, a device has been devised to change the tightening force according to each part of the body by partially arranging elastic yarns such as rubber yarns by so-called cut bosses and cut saws. .
However, in the tightening part by the cut boss, there is a problem that the end of the cut elastic yarn swells and becomes crumpled, or the elastic thread is gradually pulled out from the ground knitting structure and weakens the tightening force. In the tightening portion, there is still a problem that a gore occurs due to the sewing line swelled in a line shape and the peripheral fabric.

  Therefore, various knitting methods of a tubular knitted fabric that change the tightening force of each part without using a cut boss or a cut saw have been proposed. For example, in Patent Document 1, the amount of elastic yarn inserted into the knitted fabric is There has been proposed a method of changing the tightening force in the wale direction by changing the frequency of the ground knitting structure for each course. In the knitting method of Patent Document 1, elastic yarn is fed using a conical roller, and the amount of insertion of the elastic yarn is changed by supplying elastic yarn at different portions of the diameter of the conical roller for each course. It is what.

  In Patent Document 2, the elastic contraction yarn is hooked on the loop of the ground structure and folded at both ends of the tightening portion in the circumferential direction, so that the tightening is not provided on the instep and only the arch is tightened. Socks with a part have been proposed. In the sock of Patent Document 2, while the ground structure is a circular knitting, only the elastic yarn is folded back in the circular direction of the ground structure.

  Furthermore, Patent Document 3 proposes a method in which a tubular knitted fabric is divided into a plurality of knitting portions in the circumferential direction, and the knitting directions in each knitting portion are knitted while alternately turning back at both ends in the course direction. In the knitting method according to Patent Document 2, the tightening force of each part is changed by using or threading elastic yarns having different tightening forces for each knitting part.

JP 2007-39814 A JP 2010-242235 A JP2013-60696A

However, in the knitted fabric of Patent Document 1, there is a problem that even if the tightening force in the wale direction can be changed, the tightening force in the circumferential direction cannot be changed.
Moreover, in the knitted fabrics of Patent Document 2 and Patent Document 3, there is a problem that although the tightening force can be changed in the circumferential direction, the tightening force cannot be changed in the wale direction.
The present invention has been made in view of the above problems, and a tubular knitted fabric in which the tightening force is changed in both the circumferential direction and the wale direction without using the cut boss or the cut boss, and the knitting of the tubular knitted fabric. The purpose is to provide a method.

A method for knitting a tubular knitted fabric according to the present invention made to solve the above-described problems uses a flat knitting machine having at least a pair of front and rear needle beds, and includes a tightening portion made of a ground yarn and an elastic yarn. A method for knitting a tubular knitted fabric for knitting a tubular knitted fabric, comprising a ground course knitting step of knitting a ground knitted fabric by circular knitting a ground yarn, and a part of the tightening portion in the circumferential direction Tack and one or more mistakes are repeated alternately over the first circumferential section forming the first circumferential section to form a first circumferential section side line portion through which the elastic thread alternately passes the front and back of the ground knitted structure The first circumferential section side line portion forming step and part of the tightening portion in the circumferential direction, and the tuck and one or more mistakes are alternately performed by elastic yarn over the second circumferential section adjacent to the first circumferential section. The elastic yarn alternates between the front and back of the ground knitted structure The second circumferential section side line section forming step for forming the passing second circumferential section side line section, and the elastic thread is tucked at the end of the first circumferential section or the end of the second circumferential section, A turning point forming step of hooking on the loop of the ground knitting structure and turning back in the circumferential direction; and a boundary portion passing step of passing the elastic yarn through the boundary portion of the first circumferential section and the second circumferential section, When the knitting process is performed a plurality of times and the first circumferential section side line portion forming process or the second circumferential section side line section forming process is continued between the back and forth ground course knitting processes, this continuous 2 When a turn-around point forming step is sandwiched between two same line portion forming steps, and the first circumferential section side line portion forming step and the second circumferential section side line portion forming step are continued, these two different line portion forming steps The boundary passage process is sandwiched between Et al., And wherein the organizing fastening portion by carrying out a first circumferential segment side line portion forming step number different from the second circumferential segment side line portion forming step.
Here, the “ground course” refers to a course of a knitting organization.

In this way, the number of line parts per course of the ground knitting organization can be reduced by carrying out a plurality of line part forming steps between the time when the ground course is knitted and the time when the next ground course is knitted. Since it becomes possible to change for every course of ground organization, it becomes possible to change the fastening force of a fastening part about a wale direction.
In addition, since the first circumferential section side line section forming step and the second circumferential section side line section forming process are performed different times, different numbers of line sections can be provided in both the circumferential sections. The tightening force can be changed in the circumferential direction.
And, as described above, when it becomes possible to change the tightening force for the wales and the circumferential direction of the tubular knitted fabric, it is possible to secure the stretchability by weakening the tightening force of the portion that does not need to be strongly tightened, A cylindrical knitted fabric that is easy to wear can be formed.

  The tubular knitted fabric of the present invention is a tubular knitted fabric having a weft knitting structure and provided with a tightening portion made of a ground yarn and an elastic yarn, and the tightening portion is loop-knitted with the ground yarn. Formed by the ground knitted structure and a tightening structure made of elastic yarn knitted in the ground knitted structure, and divided into one or a plurality of vertical sections arranged in the wale direction of the ground knitted structure, the vertical section Is divided into at least two circumferential sections including a first circumferential section and a second circumferential section that are adjacent to each other in the circumferential direction of the ground knitting structure, and the tightening structure has an elastic yarn on the back side of the ground knitting structure. A line part extending along the ground course while alternately repeating a tuck part passing through and a miss part passing through the front side of the ground knitting structure, and the elastic yarn is hooked from the outside to the base end part of the loop of the ground knitting structure The turning point that turns back in the circumferential direction of the ground knitting structure, and the elastic yarn is the first circumference And a passing point passing through the boundary of the second circumferential section, and the first circumferential section and the second circumferential section include different numbers of line portions per course of the ground knitting structure. Features.

  In the tubular knitted fabric according to the present invention, the two circumferential sections are thus provided with different numbers of line portions per course, so that the tightening force of the tightening portion can be set in the circumferential direction of the ground knitting structure. Can be changed.

  The tubular knitted fabric of the present invention has a plurality of the vertical sections, and at least two of the plurality of vertical sections have a ratio of the number of line portions of the first circumferential section and the second circumferential section. Preferably they are different. In this way, by setting the ratio of the number of line parts of the two circumferential sections to different ratios in the two vertical sections arranged in the wale direction of the ground knitting structure, the tightening force of the tightening part is changed to the wale direction of the ground knitting structure. Can vary.

  In the vertical section, the ratio of the number of line portions of the first and second circumferential sections is N1: M1, and the ratio of the number of line sections of the first and second circumferential sections is N2: The ground course composed of M2 may be alternately repeated, and the ratio of the line portions of the first and second circumferential sections may be set to (N1 + N2) :( M1 + M2) as the entire vertical section. By doing so, the ratio of the tightening force between the first circumferential section and the second circumferential section can be variously changed within the range of the number of line portions that can be provided per course of the ground course.

  The two line portions folded back by the folded portion may be provided with tack portions at different positions in the course direction. By doing so, it is possible to suppress the appearance of the bank pattern on the appearance.

  According to the present invention, the tightening portion is configured to tighten the shin portion and the calf portion, the tightening portion configured such that the first circumferential section tightens the calf side and the second circumferential section tightens the shin side. Including a tubular knitted fabric with

  As described above, according to the knitting method of the tubular knitted fabric having the tightening portion of the present invention, the tightening force of the tightening portion in both the wale direction and the circumferential direction without impairing the wearing feeling due to the gore. It is possible to provide a tubular knitted fabric with changed knitting.

1 is a perspective view of a tubular knitted fabric according to an embodiment of the present invention. It is the organization chart which showed typically a mode that the knitted fabric organization of the 2nd vertical section shown in Drawing 1 was seen from the inside of a cylindrical knitted fabric. It is a principal part enlarged view which shows the folding | turning point vicinity of the organization chart of FIG. FIG. 3 is a knitting diagram showing a knitting method of the second vertical section shown in FIG. 1. FIG. 2 is a knitting diagram showing a knitting method of the first vertical section shown in FIG. 1. It is the knitting diagram which showed the knitting method of the 3rd vertical division shown in FIG. It is the knitting diagram which showed the knitting method of the fastening part which concerns on other embodiment of this invention. It is a perspective view of the cylindrical knitted fabric which concerns on another embodiment of this invention. It is the perspective view which looked at the cylindrical knitted fabric which concerns on another embodiment of this invention from (a) front side, (b) The perspective view seen from the back side.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. However, the present invention is not limited to the following embodiments.
FIG. 1 shows a tubular knitted fabric 100 made of five-finger socks according to an embodiment of the present invention. As shown in FIG. 1, the tubular knitted fabric 100 includes a rubber band portion 2, a leg portion 3, a foot portion 4, and five finger bags 5, and the leg portion 3 includes a tightening portion 1. ing. The tubular knitted fabric 100 has a ground knitting structure knitted by the same ground yarn 6 from the mouth rubber part 2 to the finger bag 5, and the fastening part 1 has the elastic yarn 7 knitted into this ground knitting structure. Is formed.
As the ground yarn 6, known elastic yarns such as cotton, wool, hemp, silk, polyester, acrylic, nylon, and blended yarns thereof, or inelastic yarns can be appropriately used. As the elastic yarn 7, rubber is used. Known elastic yarns such as yarns, spandex and covering yarns can be used as appropriate.
In the following description, one loop of the ground knitting structure is also referred to as “first eye”.

  The tightening portion 1 is provided from the ankle to the shin / swell portion, and is divided into three vertical sections (first vertical section 11, second vertical section 12, and third vertical section 13) that are divided in the vertical direction (the wale direction). The three vertical sections 11, 12, and 13 each include two circumferential sections (first circumferential sections 11a, 12a, and 13a, and second circumferential sections 11b, 12b, and 13b) that are divided in the circumferential direction. . In the present embodiment, the first circumferential sections 11a, 12a, and 13a are located on the rear side (the calf side) of the tightening portion 1 and are knitted by the needle bed F on the front side of the flat knitting machine, as will be described later. 11b, 12b, and 13b are located in the front side (tibial side) of the fastening part 1, and are knitted by the needle bed B on the rear side of the flat knitting machine.

  2 and 3, the tightening unit 1 includes a ground knitting structure 14 knitted by the ground yarn 6 and a tightening structure 15 knitted by the elastic yarn 7. The ground knitting structure 14 is a ground knitting structure in the range of the tightening part 1 among the continuous knitting structures from the finger bag 5 to the rubber band part 2, and is independent of the ground knitting structure of the part other than the tightening part 1. It is not an organization but an integrated organization.

Next, the tightening structure 15 will be described by taking the second vertical section having the simplest structure as an example. 2 and 3 show the knitting structure of the second longitudinal section 12 as viewed from the back side, and the two-dot chain line loop shown in the vertical column on the left end of FIG. The same loop as the loop of one row is shown, and the right and left ends of the knitted fabric of FIG. 2 are connected, and the knitted fabric is continuous in a cylindrical shape.
The tightening structure 15 has a folding point 15c at which the elastic yarn 7 is folded in the circumferential direction of the ground knitting structure 14 (left and right direction in FIG. 2), and line portions 151a and 151b made of the elastic yarn 7 folded at the folding point 15c. doing. The line portions 151a and 151b are a tuck portion 15a through which the elastic yarn 7 passes through the back side (the front side in FIG. 2) of the loop 14a of the ground knitting structure 14, and a front side (see FIG. 2 is provided such that the missed portions 15b passing through the back side of the paper are alternately repeated one by one, and the turn-back point 15c hangs the elastic yarn 7 on the proximal end portion 14b (see FIG. 3) of the loop 14a of the knitted fabric structure 14. It is provided to stop.

  In the second vertical section 12, two line portions 151a per ground course are provided in the first circumferential section 12a, and one line portion 151b per ground course is provided in the second circumferential section 12b. ing. In the first circumferential section 12a, the positions of the tack portion 15a and the miss portion 15b of the two line portions 151a are shifted from each other by one, and the tack portion 15a and the miss portion 15b of the two line portions 151a are alternately switched. Have an organization. One of the two line portions 151a of the first circumferential section 12a is provided only on the half circumference of the tubular knitted fabric (only the first circumferential section 15a), and the other one line section 151a is disposed on the second circumference. It is provided so as to extend over the entire circumference of the tubular knitted fabric together with the line portion 151b of the section 12b.

  Further, as shown in FIG. 2, in the line portion 151a of the ground courses C2, C4,... Of the second vertical section 12, the transition yarn 15d from the adjacent ground courses C1, C3,. The turning point 15c is provided at the left end of the first circumferential section 12a. In the line portion 151a of the ground courses C3, C5,. The transition yarn 15d is provided at the left end of the first circumferential section 12a, and the turning point 15c is provided at the right end of the first circumferential section 12a. Thus, the position of the folding point 15c and the transition yarn 15d is determined as one course of the ground course. By changing every time, the number of the line portions 151a of the first circumferential section 12a is two courses and the number of the line portions 151b of the second circumferential section 12b is one in all the ground courses.

And in the 1st vertical section 11 located in the thickest part of a calf, as shown in the knitting diagram of FIG. 5, three line parts per ground course are added to the 1st circumference section 11a knitted by the front needle bed F. 151a is arranged, one line portion 151b per ground course is arranged in the second circumferential section 11b, and the ratio of the number of line sections of the first circumferential section 11a and the second circumferential section 11b is 3: 1. Provided. The line portion 151a of the first circumferential section 11a is provided so that the tack portion 15a is provided so that the tack portion 15a is not overlapped by the three line portions 151a so that the tack portion 15a is provided every three eyes, and is connected via two folded portions 15c. doing. The line section 151b of the second circumferential section is connected to the line section 151a of the first circumferential section 11a by a boundary section 11c and a crossover thread 15d provided at both ends.
4 to 7, reference numeral 6 indicates a ground yarn, reference numeral 7 indicates an elastic yarn, and a rightward or leftward arrow indicates a yarn feeding direction.

  Further, in the third vertical section 13, as shown in FIG. 6, a ground course 141 (W1 to W1) in which two line portions 151a are provided in the first circumferential section 13a and one line section 151b is provided in the second circumferential section 13b. W4 or W8 to W11), and a course (see W5 to W7 or W12 to W14) in which one line portion 151a is provided in the first circumferential section 13a and one line portion 151b is disposed in the second circumferential section 13b. Are alternately repeated, and the ratio of the number of line portions of the first circumferential section 13a and the second circumferential section 13b is set to 3 to 2 in the entire third vertical section 13.

(Knitting method of socks 100)
Next, a knitting method of the tubular knitted fabric 100 will be described. The knitting of the tubular knitted fabric 100 is knitted using a flat knitting machine having at least a pair of front and back needle beds.
The tightening portion 1 includes a ground course knitting step S1, a first circumferential segment side line portion forming step S2, a second circumferential segment side line portion forming step S3, a turning point forming step S4, and a boundary portion passing step S5. Are performed in an appropriate order by an appropriate number of times.
The knitting method of the portion other than the tightening portion 1 from the rubber band portion 2 to the finger bag portion 5 can be appropriately used a known method such as the method described in Patent Document 2, and thus the description thereof is omitted. To do.

(Ground course organization process S1)
The ground course knitting step S1 is a step of knitting the ground course 141 of the ground knitting structure 14 as one course. For example, as shown in steps W1 and W5 of FIG. 4, the ground yarn is knitted needles of the front and back needle beds F and B. Supplied in a circular manner and knitted one course of the Tengu course.

(1st circumference division side line part formation process S2)
The first circumferential section side line portion forming step S2 is a process of forming the line portion 151a in the first circumferential sections 11a, 12a, and 13a. For example, as shown in steps W2 and W3 in FIG. 4, the line portion 151a is used to perform a tucking operation on the knitting needle while misfeeding one or more needles while feeding the elastic yarn 7 to the needle bed F on the front side of the flat knitting machine. The elastic yarn 7 is formed so as to pass through the back of the ground knitting structure at the tack part 15a and through the front of the ground knitting structure at the miss part 15b.

(Second circumference section side line portion forming step S3)
The second peripheral section side line portion forming step S3 is a step of forming the line portion 151b in the second peripheral sections 11b, 12b, and 13b. For example, as shown in the procedure W4 of FIG. 4, the line portion 151b performs a tucking operation of the knitting needle while performing an error operation of one or a plurality of needles while supplying the elastic yarn 7 to the needle bed B on the rear side of the flat knitting machine. The elastic yarn 7 is formed so as to alternately pass through the front and back of the ground knitting structure.

(Folding point forming step S4)
The turning point forming step S4 is a step in which the elastic yarn 7 forms a turning point 15c where the elastic yarn 7 turns back in the circumferential direction of the knitted fabric structure 14. For example, as shown at the right end of the column of step W2 in FIG. 4, the turning point 15c is tucked on the knitting needle at the position where the elastic yarn 7 is turned back, and the yarn feeding direction of the elastic yarn 7 is the circumferential direction of the ground knitting structure 14 And the elastic yarn 7 is hooked from the outside to the shoulder portion 14b of the loop 14a of the ground knitted fabric structure 14.

(Boundary part passing step S5)
In the boundary passage step S5, for example, as shown between the steps W3 and W4 in FIG. 4, the elastic yarn 7 knitted into the ground knitting structure 14 is made up of the first circumferential section 11a, 12a, 13a and the second circumferential section 11b, This is a step of passing through the boundary portions 11c, 12c, 13c of 12b, 13b without being folded back. The elastic yarn 7 passes through the first circumferential section 11a, 12a, 13a to the second circumferential section 11b, 12b, 13b or from the second circumferential section 11b, 12b, 13b without folding back to the first circumferential section 11a, 12a, 13a. By doing so, the line portion 151a of the first circumferential sections 11a, 12a, and 13a and the line section 151b of the second circumferential sections 11b, 12b, and 13b are combined to form one line portion that extends over the entire length in the circumferential direction of the tubular knitted fabric. Form.

(Crossover yarn forming step S6)
In the transition yarn forming step S6, for example, as shown in the steps W4 to W6 in FIG. 4, the two yarns feeding the elastic yarn 7 are retracted while the ground course knitting step S1 is performed, so that two adjacent ground yarns are retracted. This is a step of forming a transition yarn 15d in which the elastic yarn 7 is stretched between the courses 141.

Next, the knitting method from the first vertical section 11 to the third vertical section 13 will be described in detail with reference to FIGS.
(Knitting of the first vertical section 11)
As shown in FIG. 5, the knitting of the first vertical section 11 is knitted by repeating the procedure from W1 to W5 a plurality of times. First, the ground course knitting step S1 is performed in the procedure W1 to form one course, and then the first circumferential section side line portion forming step S2 is performed twice in the procedure W2 to the procedure W4. After the three circumferential section side line portions 151a are formed, the second circumferential section side line portion forming step S3 is performed in step W5 to form one second circumferential section side line portion 151b. As shown in FIG. 5, at the end of the procedures W2 and W3, the folding point forming step S4 is performed to form the folding point 15c, and at the end of the procedure W4, the boundary portion passing step S5 is performed and the elastic yarn 7 Is passed from the first circumferential section to the second circumferential section. Reference numeral 15e in the figure indicates a passing point. In the procedure W2 to the procedure W4, a tack operation is performed every two stitches on the elastic yarn 7 with an error operation of two stitches interposed therebetween.

(Formation of second vertical section 12)
As shown in FIG. 4, the knitting of the second vertical section 12 is knitted by repeating the procedures from W1 to W8 a plurality of times. First, in the procedure W1, the ground course knitting step S1 is carried out to form one course of the ground course 141, and then the first circumference division side line portion formation step S2 is carried out in the procedures W2 and 3 to obtain the first circumference division. After forming the two side line portions 151a, the process second circumferential section side line section forming step S3 is performed in step W3 to form one second circumferential section side line section 151b. Next, step S5 is performed again in step W5 to form one course of ground course 141, and then in steps W6 to 8, the procedure W2 to procedure W4 and the yarn feeding direction of the elastic yarn 7 are reversed, and the process is repeated twice. Steps S2 and S3 are performed in this order to form two first circumferential section side line portions 151a and one second circumferential section side line portion 151b. As shown in FIG. 5, at the end of steps W2 and W6, a turning point forming step S4 is performed to form a turning point 15c, and at the end of steps W3 and W7, a boundary passing step S5 is performed. The elastic yarn 7 passes from the first circumferential section to the second circumferential section. In the knitting of the line portions 151a and 151b of the second vertical section 12, a tack operation is performed every other stitch with a single stitch error operation, and the steps W2 and W3, and the steps W6 and W7 are tacked at different positions. I do.

(Knitting of the third vertical section 13)
The knitting of the third vertical section 13 is knitted by repeating the procedure from W1 to W14 shown in FIG. 6 a plurality of times. First, one ground course 141, two first circumferential section side line portions 151a, and one second circumferential section side line portion 151b are formed by the procedures W1 to W4. Subsequently, in the procedure W5 to the procedure W7, one ground course, one first circumference section side line portion 151a and one second circumference section side line portion 151b are formed. In this way, from the procedure W1 to the procedure W7, three first circumferential section side line portions 151a and two second circumferential section side line portions 151b are formed.
Next, in steps W8 to W14, the yarn feeding direction of the elastic yarn 7 is reversed, and the same steps as in steps W1 to W7 are repeated, and further, three first circumferential section side line portions 151a and two first A two-round section side line portion 151b is formed. Thus, in the procedure W1 to the procedure W14, a total of six first circumference section side line portions 151a and a total of four second circumference section side line portions 151b are formed, and by repeating the procedure W1 to the procedure W14, The ratio of the number of line portions of the first circumferential section 13a and the second circumferential section 13b in the entire third vertical section 13 is set to 3 to 2.

  As described above, in the manufacturing method according to the present embodiment, the first circumferential section side line portion forming step S2 and the second circumferential section side line by the elastic yarn between the two front and back ground course knitting steps S1 and S1. In carrying out the part forming step S3, since the elastic yarn is knitted only by the knitting needle tacking operation and the missing operation, an arbitrary number of line portions can be formed for one course of the ground course. Thereby, since the number of a line part can be changed for every ground course, the fastening force of the fastening part 1 can be changed about the wale direction of the ground-knitting structure | tissue 14. As shown in FIG.

  In the knitting method according to the present embodiment, the first circumferential section side line portion forming step S2 and the second circumferential section side line portion forming step S3 are performed a different number of times. And the second circumferential section side line portions 151b are formed in different numbers, and the tightening force of the tightening portion 1 can be changed in the circumferential direction of the knitted fabric structure 14.

  In the present embodiment, the fastening portion 1 is provided with three vertical sections 11, 12, and 13, and the ratio of the numbers of the first peripheral section side line section 151 a and the second peripheral section side line section is set to the first vertical section 11. Is 3: 1, the second vertical section 12 is 2: 1, and the third vertical section 13 is 3: 2, so that the ankle side is tightened well, and the mouth rubber side is easy to spread and easy to wear.

  Further, in the present embodiment, since the positions of the tack portions 15a of the plurality of first circumferential section side line portions 151a are arranged so as not to overlap, the burden on the knitting needle can be reduced and the knitted fabric is not damaged due to the overlap of the tack portions. Natural undulations can be prevented.

  Further, in the present embodiment, in the third vertical section 13, the ground course in which the first peripheral section side line portion 151 a is two and the number of the second peripheral section side line section is one, and the first peripheral section side line The ratio of the entire third section 13 is set to 3: 2 by alternately repeating the portion 151 and the ground course in which the number of the second peripheral section side line sections is one, so the first peripheral section side line Compared to a ground course with three parts 151a and two second circumference section side line parts, the number of line parts per ground course can be reduced, and the elasticity per ground course can be reduced. The ratio of the number of line portions of the first circumferential section and the second circumferential section can be appropriately set without increasing the number of yarns excessively.

(Other embodiments)
8 and 9 show tubular knitted fabrics 200 and 300 according to another embodiment of the present invention.
In the tubular knitted fabric 200, the second circumferential sections 11b, 12b, 13b of the tubular knitted fabric 100 shown in FIG. 1 are formed in a thin band shape and obliquely crossed from the upper left to the lower right in the figure. The first circumferential section 11a occupies a wider portion in the circumferential direction than the second circumferential section.
In the knitting of the tubular knitted fabric 200, among the knitting needles used for knitting the front needle bed, the first circumferential sections 11a, 12a, and 13a are formed by performing the turning point forming step S5 with the knitting needles at the intermediate positions instead of the knitting needles at both ends. The boundary portions 11c, 12c, and 13c are curved by knitting so as to straddle both ends of the front needle bed and the rear needle bed, and by gradually moving the needles for knitting the turning points for each course. Forming.

  Further, in the tubular knitted fabric 300 of FIG. 9, the upper and lower ends are knitted while moving the turning points little by little along the course, and the middle part in the vertical direction is knitted so as not to change the position of the constant section turning point. The boundary portion 311c is formed to have a curved portion and a straight portion. The first circumferential section 311a is formed so as to extend the area as it descends downward and wraps around from the rear, and conversely, the second circumferential section 311b is formed so as to expand the area as it rises and wrap around backward. . In the tubular knitted fabric 300, there is one vertical section.

  The present invention is not limited to the above-described embodiment. For example, as shown in FIG. 7, the tack positions of two line portions that are folded at the folding point may be matched. The vertical section in the tightening portion may be two or four or more. The tightening part is not limited to the shin or calf part, but can also be provided on the foot part of the sock. The tubular knitted fabric is not limited to a sock with a finger bag, and may be a sock without a finger bag, or is not limited to a sock, but includes tights, leggings, and other known tubular knitted fabrics. The needle beds before and after the flat knitting machine may be used either before or after the tubular knitted fabric. In the embodiments shown in FIG. 7 to FIG. 9, the same reference numerals are given to portions common to the above-described embodiments, and the description thereof is omitted.

100, 200, 300 Tubular knitted fabric 1, 301 Tightening portion 11, 311 First longitudinal section 11a, 311a First circumferential section 11b, 311b Second circumferential section 11c, 311c Boundary section 12 Second longitudinal section 12a First circumference Section 12b Second circumferential section 12c Boundary section 13 Third longitudinal section 13a First circumferential section 13b Second circumferential section 13c Boundary section 14 Ground knitting structure 14a Loop 14b Loop base end 141 Ground course 15 Tightening structure 15a Tuck section 15b Miss portion 15c Turn-back point 15e Pass point 151a First circumference section side line section 152b Second circumference section side line section 6 Ground thread 7 Elastic thread

A method for knitting a tubular knitted fabric according to the present invention made to solve the above-described problems uses a flat knitting machine having at least a pair of front and rear needle beds, and includes a tightening portion made of a ground yarn and an elastic yarn. A method for knitting a tubular knitted fabric for knitting a tubular knitted fabric, comprising a ground course knitting step of knitting a ground knitted fabric by circular knitting a ground yarn, and a part of the tightening portion in the circumferential direction The ground course while alternately repeating the tack and one or more mistakes by the elastic yarn over the first circumferential section, and passing the tack part passing through the back side of the ground knitting structure and the miss part passing through the front side of the ground knitting structure Forming a first circumferential section side line portion formed of an elastic yarn extending along the first circumferential section side line section, and forming a part in the circumferential direction of the tightening section and adjacent to the first circumferential section One with the tuck by the elastic thread over the second circumference section Second circumferential segment side line made of elastic yarn extending along the land track while repeating the mistakes portion through the front of the tuck portion and Chihen tissue through the back side of the ground stitch is repeated several times mistake alternately alternately The second circumferential section side line section forming step for forming the section and the elastic yarn is tucked at the end of the first circumferential section or the end of the second circumferential section, and the elastic thread is hooked on the loop of the ground knitting structure And a turning point forming step of turning back in the winding direction and a boundary portion passing step of passing the elastic yarn through the boundary portion of the first and second circumferential sections, and performing the ground course knitting step a plurality of times In the case where the first circumferential section side line portion forming step or the second circumferential section side line portion forming step is continued between the back and forth ground course knitting steps, between these two consecutive same line portion forming steps. With the folding point forming process between When the circumferential section side line section forming step and the second circumferential section side line section forming process are continuous, the first circumferential section side line section is sandwiched between the two different line section forming processes and the boundary section passing process is sandwiched between them. forming step and the two laps division side line portion forming step organizes fastening portion by different time executing, first circumferential segment side line portion forming step N1 times between the earth course knitting successive steps, and the Between the step of performing the two-round section side line portion forming step M1 times and the continuous ground course knitting step, the first peripheral section-side line portion forming step is N2 times, and the second peripheral section-side line portion forming step is M2. The two line portion forming steps, which are alternately performed once each while sandwiching the ground course knitting course, and continuously performed while sandwiching the turning point forming step are tacked at different positions in the course direction. The line Cormorant be characterized.
Here, the “ground course” refers to a course of a knitting organization.

As described above, the number of line parts per course of the ground knitting organization is implemented by performing a plurality of line part forming steps between the time when the ground course is knitted and the time when the next ground course is knitted. Therefore, it is possible to change the tightening force of the tightening portion in the wale direction.
In addition, since the first circumferential section side line section forming step and the second circumferential section side line section forming process are performed different times, different numbers of line sections can be provided in both the circumferential sections. The tightening force can be changed in the circumferential direction.
And, as described above, when it becomes possible to change the tightening force for the wales and the circumferential direction of the tubular knitted fabric, it is possible to secure the stretchability by weakening the tightening force of the portion that does not need to be strongly tightened, A cylindrical knitted fabric that is easy to wear can be formed.
Also, between the continuous ground course knitting process, the first circumferential section side line portion forming step is performed N1 times, and the second circumferential section side line portion forming process is performed M1 times and the continuous ground course knitting process. In the first circumferential section side line portion forming step N2 times and the second circumferential section side line portion forming step M2 times are alternately performed once while sandwiching the ground course knitting course, The ratio of the line part of the first circumference section and the second circumference section can be provided at (N1 + N2) :( M1 + M2), and within the range of the number of line parts that can be provided per ground course, the first The ratio of the tightening force between the circumferential section and the second circumferential section can be variously changed.
Furthermore, in the two line portion forming steps that are continuously performed with the turnaround point forming step interposed therebetween, it is possible to suppress the appearance of the shore pattern in the appearance by performing tacking at different positions in the course direction.

The tubular knitted fabric of the present invention is a tubular knitted fabric having a weft knitting structure and provided with a tightening portion made of a ground yarn and an elastic yarn, and the tightening portion is circularly knitted with the ground yarn. Formed by the ground knitted structure and a tightening structure made of elastic yarn knitted in the ground knitted structure, and divided into one or a plurality of vertical sections arranged in the wale direction of the ground knitted structure, the vertical section Is divided into at least two circumferential sections including a first circumferential section and a second circumferential section that are adjacent in the circumferential direction of the ground knitting structure,
The tightening structure includes a line portion made of elastic yarn extending along the ground course while alternately repeating a tack portion passing through the back side of the ground knitting structure and a miss portion passing through the front side of the ground knitting structure, and the elastic yarn is the A folding point that is hooked from the outside to the base end of the loop of the ground knitting structure and is turned back in the circumferential direction of the ground knitting structure, and the elastic yarn passes through the boundary between the first circumferential section and the second circumferential section The first circumference section and the second circumference section have different numbers of line portions per course of the ground knitting structure, and the vertical section has the first circumference section and the second circumference section. The ground course in which the ratio of the number of line parts is N1: M1 and the ground course in which the ratio of the number of line parts in the first and second circumferential sections is N2: M2 are alternately repeated one by one. The ratio of the line portion of the first circumferential section and the second circumferential section as a whole vertical section is (N1 N2) provided :( M1 + M2), 2 single line portion which is folded back at the folded portion, characterized in that it comprises a tuck portion at different positions in the course direction.

In the tubular knitted fabric according to the present invention, as described above , since the two circumferential sections are provided with different numbers of line portions per course, the tightening force of the tightening portion is used in the circumferential direction of the ground knitting structure. Can vary.

In addition, the vertical section has a ratio of the number of line portions of the first and second circumferential sections, the ratio of the number of line sections of the first and second circumferential sections being N1: M1, and the ratio of the number of line sections of the first and second circumferential sections. N2: The ground course composed of M2 is alternately repeated one course at a time, and the ratio of the line part of the first circumferential section and the second circumferential section as a whole vertical section is set to (N1 + N2) :( M1 + M2), The ratio of the tightening force between the first circumferential section and the second circumferential section can be changed variously within the range of the number of line portions that can be provided per ground course.

Furthermore, in the tubular knitted fabric of the present invention, the two line portions folded back by the folded portion include tack portions at different positions in the course direction. By doing so, it is possible to suppress the appearance of the bank pattern on the appearance.

The tubular knitted fabric of the present invention has a plurality of the longitudinal sections, and at least two of the plurality of longitudinal sections.
In the vertical section, it is preferable that the ratio of the number of line portions of the first circumferential section and the second circumferential section is different.
Yes. In this way, the two ratios of the number of the line portions of the two circumferential sections are aligned in the wale direction of the ground structure.
By using different ratios in the vertical section, the tightening force of the tightening part is connected in the wale direction of the ground structure.
And can be changed.

Claims (6)

Using a flat knitting machine comprising at least a pair of front and back needle beds, a knitting method of a tubular knitted fabric for knitting a tubular knitted fabric having a fastening portion composed of a ground yarn and an elastic yarn,
A ground course knitting process in which the ground yarn is knitted around and knitted in one course.
The elastic yarn alternately passes through the front and back of the knitted fabric structure by repeating the tack and one or more mistakes alternately with the elastic yarn over the first circumferential section forming a part in the circumferential direction of the tightening portion. A first circumferential section side line portion forming step for forming a first circumferential section side line portion;
The elastic yarn forms part of the tightening portion in the circumferential direction and alternately repeats a tuck and one or more mistakes by the elastic yarn over the second circumferential section adjacent to the first circumferential section, so that the elastic thread becomes the ground knitting structure. A second peripheral section side line portion forming step of forming a second peripheral section side line section alternately passing through the front and back of
Tapping the elastic yarn at the end of the first circumferential section or the end of the second circumferential section, hooking the elastic yarn to the loop of the ground knitted structure and turning back in the circumferential direction;
A boundary passage step for passing the elastic yarn through the boundary between the first circumferential section and the second circumferential section, and
When the ground course knitting process is performed a plurality of times and the first circumferential section side line portion forming process or the second circumferential section side line section forming process is continued between the preceding and following ground course knitting processes, this continuous When the first circumference section side line section formation process and the second circumference section side line section formation process are consecutive, the turning point formation process is sandwiched between two identical line section formation processes. The fastening portion is knitted by performing the first circumferential section side line portion forming step and the second circumferential section side line portion forming step different times while sandwiching the boundary portion passing step between the forming steps. A method for knitting a tubular knitted fabric having a tightening portion. A tubular knitted fabric having a flat knitting structure and having a tightening portion made of a ground yarn and an elastic yarn,
The tightening portion is
A ground knitting structure knitted around with the yarn,
Formed with a tightening structure made of elastic yarn knitted into the ground knitting structure,
Divided into one or more vertical sections lined up in the wale direction of the knitting structure,
The longitudinal section is divided into at least two circumferential sections including a first circumferential section and a second circumferential section that are adjacent in the circumferential direction of the ground knitting structure,
The tightening organization is:
A line portion extending along the ground course while alternately repeating a tuck portion where the elastic yarn passes through the back side of the ground knitting structure and a miss portion passing through the front side of the ground knitting structure,
A turning point at which the elastic yarn is hooked from the outside to the base end portion of the loop of the ground knitting structure and folded back in the circumferential direction of the ground knitting structure;
A passing point through which the elastic yarn passes through a boundary between the first circumferential section and the second circumferential section;
The tubular knitted fabric having a tightening portion, wherein the first circumferential section and the second circumferential section include different numbers of line portions per course of the ground knitting structure. A plurality of the vertical sections;
The tubular knitted fabric having a tightening portion according to claim 2, wherein a ratio of the number of line portions of the first circumferential section and the second circumferential section is different in at least two longitudinal sections of the plurality of longitudinal sections. .   In the vertical section, the ratio of the number of line portions of the first and second circumferential sections is N1: M1, and the ratio of the number of line sections of the first and second circumferential sections is N2: The ground course consisting of M2 is alternately repeated, and the ratio of the line portions of the first circumferential section and the second circumferential section as a whole vertical section is set to (N1 + N2) :( M1 + M2). A tubular knitted fabric provided with the tightening portion described in 1.   The cylindrical knitted fabric provided with the tightening portion according to claim 2, wherein the two line portions turned back at the turn-back portion include tack portions at different positions in the course direction. The tightening portion is configured to tighten the shin portion and the calf portion;
The tubular knitted fabric provided with the tightening portion according to any one of claims 2 to 5, wherein the first circumferential section is configured to tighten the calf side and the second circumferential section is configured to tighten the shin side. .

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