JP2017155365A - Sock, and knitting method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pair of socks having a similar external appearance as that of general socks, and soft skin touch, tightly fitting without using a rubber yarn, hardly slipping down, and easy to wear.SOLUTION: A pair of socks is such that: a knitting texture of at least an insertion port of the sock is plated-stitch comprising a front yarn and a back side yarn; the front yarn comprises a yarn comprising a short fiber and a long fiber; the back side yarn has a polyurethane elastic yarn as the core yarn, and is a covered elastic yarn made by winding a covered yarn comprising a plurality of crimped filaments around the core fiber; each stitch in the plated-stitch is formed of the front yarn and the back side yarn; and in each stich, the core yarn in the back side yarn shrinks, and the covered yarn in the back side yarn becomes loose so that crimps of the filament appear, and the back side yarn is expanded inside the sock.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a sock and a sock knitting method. In particular, the present invention relates to socks that do not use rubber yarn at the mouth of the socks.

  In order to prevent the socks from falling off, a rubber thread is inserted into the wearing mouth so as to strongly tighten the foot of the person wearing the socks. For this reason, the mouth part using the rubber thread digs into the ankle and calf, and the rubber marks are left, and the patient feels uncomfortable feelings such as pain and itchiness. In addition, when wearing socks, the mouth must be widened, but due to the presence of rubber thread, it has to be widened with a strong force, and there is a problem that it is difficult to wear socks. In particular, those who tend to have swollen feet or elderly people tend not to prefer tight socks.

  In order to solve such a problem, socks that do not insert a rubber thread into the mouth portion have been proposed. For example, in Japanese Patent No. 4323789 (patent document 1), the mouth portion of a sock has a spliced yarn knitting as a basis and a spiral mesh knitting is combined with the knitting yarn and an elastic yarn. While the desired fit is given by being knitted so as to be 2/1 to 5/1, the slipper is prevented from slipping without using rubber yarn by being folded back at least twice. Is disclosed.

  In Japanese Patent No. 4600855 (Patent Document 2), the tightening portion of the sock is made of 10 cm or more above the heel portion, and no rubber yarn is inserted into the tightening portion, and the splicing yarn is added to the main yarn. Using a polyurethane thread thinner than 40 denier, arranging several courses of the front course in the knitting direction of the tightening part, and then arranging several courses of the back course to form a modified pearl knitting structure, It is disclosed to prevent slipping off by making it possible to expand and contract in the direction of the wale in a large ridge pattern structure of irregular bellows formed by the course of the back.

Japanese Patent No. 4323789 Japanese Patent No. 4600855

  In the sock described in Patent Document 1, spiral mesh knitting seams are formed in the mouth part from 2/1 to 5/1, but the seam (convex part) is a flat knitting that forms a loop, and the groove (recessed part). Is formed by a linear float (that is, a floating yarn portion that does not form a loop). For example, in a 2/1 gaze, two wales in which the flat stitches are continuous in the vertical direction (flat stitches are knitted in all courses) and wales in which the floats are continuous in the vertical direction (the knitting needles are in all courses) (It becomes the welt position) is a repetition of one. Further, since the float is continuous in the vertical direction (the wale direction), the lateral extension is poor.

  There is a problem that this sock is difficult to wear because the mouth must be folded back twice.

  Moreover, since a general sock does not fold up a mouth, the sock of patent document 1 has the problem that it looks different from a general sock.

  The sock of Patent Document 2 is an uneven bellows shape in which the tightening portion from the ankle to the calf extends in a longitudinal direction (wel direction) of 10 cm or more, and looks like a leg warmer to be worn loosely, There is a problem that it looks different from general socks. In addition, when putting on socks, it is a general operation to hold the mouth part, put it in from the toe, and pull it up, but in the sock of Patent Document 2, the modified pearl knitting structure formed in the mouth part Since the uneven bellows-like portion of the material extends remarkably in the vertical direction, there is a problem that it is difficult to wear socks due to excessive elongation.

  In order to solve such a problem, the applicant of the present application previously described in Japanese Patent Application No. 2014-156873, the knitting structure of the lip portion is composed of a plain knitting course and a floating knitting course, and the back yarn is all We proposed a sock that was knitted with a flat knitting and the mouth part was very easy to stretch and loose, but difficult to slip off and easy to wear.

  In the previous application, the knitting structure of the mouth portion is different from that of ordinary socks, and there is a feeling of relaxation but no feeling of support.

  The present invention solves the problems of prior art socks and has a plump portion that has the same appearance as a general sock and that can be softly supported without feeling unpleasant biting in the mouth. This plump part can be applied not only to the mouth part, but also to the legs and feet, it is soft to the touch, fits snugly without using rubber thread, is difficult to slip off and easy to wear The purpose is to provide socks.

  The present invention is a spliced yarn in which the knitting structure of at least the mouth of the sock is composed of a front yarn and a back yarn, the front yarn is a yarn comprising short fibers or long fibers, and the back yarn is a polyurethane elastic yarn Is a coated elastic yarn in which a coated yarn comprising a plurality of crimped filaments is wound around the core yarn, and each stitch in the spliced yarn is composed of the front yarn and the back yarn, The sock characterized in that the core yarn in the back yarn shrinks in the stitch, the back yarn covering yarn loosens and the filament crimps appear, and the back yarn swells inside the sock. Achieve the goal.

  In the spliced yarn knitting, the back yarn is fed longer than the front yarn when the stitch is formed, so that the core yarn in the back yarn is shrunk in each stitch, the covering yarn of the back yarn is loosened, and the filament is crimped. And the back thread swells inside the sock.

  A plump part in which the back thread swells inside the sock is formed in the wearing part. Alternatively, a plump part in which the back thread swells inside the sock is formed in the wearing part and the leg part. Alternatively, a plump part in which the back thread swells inside the sock is formed in the wearing mouth part, leg part and foot part.

  The present invention provides a spliced yarn with a coated elastic yarn having a surface yarn made of short fibers or long fibers, a polyurethane yarn as a core yarn, and a coated yarn made of a plurality of crimped filaments wound around the core yarn as a back yarn. When knitting at least the sock mouth portion of the sock, the covered elastic yarn is fed from the first yarn feeder, and the front yarn is positioned upstream of the first yarn feeder in the forward rotation direction of the cylinder. In addition to supplying yarn from the yarn feeder, the sinker cap is rotated in the opposite direction to the forward rotation direction of the cylinder to advance the operation timing of the sinker, so that the front yarn fed from the handle yarn feeder can be With the covered elastic yarn that is stored in the throat and fed from the first yarn feeder being placed on the hook of the sinker, the front yarn and the back yarn are supplied to the hook of the knitting needle, and the knitting needle is lowered by lowering the knitting needle. Old loop By forming a new loop out, to achieve the above object by the knitting method of a sock, characterized by knitting the subscript yarn knitting.

  According to the present invention, at least at the mouth portion of the sock, the yarn comprising short fibers or long fibers is used as the surface yarn, the polyurethane elastic yarn is used as the core yarn, and the coated yarn comprising a plurality of crimped filaments is used as the core yarn. A spliced yarn with a covered elastic yarn wrapped around it as a back yarn, and each stitch in the spliced yarn knitting is composed of a front yarn and a back yarn, and in each stitch, the core yarn in the back yarn shrinks, and the back yarn is covered The yarn is loosened and the filaments are crimped, and the back yarn swells inside the sock. Thus, the back thread swells inside the sock to form the plump part.

  In this plump part, the crimped filament comes into contact with the skin, so the touch is soft and feels good, and the polyurethane elastic yarn of the core elastic yarn of the coated elastic yarn provides an appropriate fit and swells with the polyurethane elastic yarn Due to the synergistic effect with the crimped filaments in the state, the socks are difficult to slip off and easy to wear.

  According to the present invention, since the front yarn is knitted with a normal length, the appearance of the sock looks like an ordinary knitted fabric, and a tight fabric feeling is obtained. The inner plump part of the socks is a knitted fabric that is completely different from the surface and has a good fit that shrinks moderately.

  According to the present invention, the plump part can be formed not only in the mouth part but also in the leg part and the foot part. Forming a plump part on the leg or foot, the wearer's calf and instep are moderately tightened, providing a sense of support and a pleasant feeling.

  The fitting property can be changed by changing the number of coated elastic yarns used by about 1 to 3 or changing the thickness.

  According to the method of the present invention, when knitting spliced yarn using an ordinary circular knitting sock knitting machine, the coated elastic yarn is fed from the first yarn feeder, and the front yarn is related to the forward rotation direction of the cylinder. The yarn is fed from the handle yarn feeder located upstream from the first yarn feeder, and the sinker cap is rotated in the opposite direction to the normal rotation direction of the cylinder to advance the timing of the sinker operation. The front yarn and the back yarn are supplied to the knitting needle while the front yarn fed from the yarn feeder is placed in the throat of the sinker and the covered elastic yarn fed from the first yarn feeder is placed on the hook of the sinker. Just knitting, you can knitting the plump part. That is, when the knitting needle is lowered, the hook of the knitting needle pulls out the front yarn and the back yarn to form a new loop, but since the back yarn is placed on the hook of the sinker, the front yarn located in the throat of the sinker Will be drawn longer. For this reason, in the formed stitch, the length of the back yarn is longer than the front yarn, and the back yarn is loosened. In particular, the covered yarn of the back yarn is loosened and the crimp of the filament is developed, and a plump part is formed.

  In addition, in Japanese Patent Application No. 2014-156873 filed earlier by the applicant of the present application, it was proposed to rotate the sinker cap in the reverse direction with respect to the forward rotation direction of the cylinder to advance the operation timing of the sinker. In the application, since both the front yarn and the back yarn are supplied from the first yarn feeder, when both knitting the flat stitch, they are knitted by the knitting needle in a state where both of them are in the sinker throat. For this reason, the plump portion of the present invention cannot be knitted by the method of the previous application.

It is a top view which shows one Example of the sock of this invention. It is sectional drawing which shows the cylinder upper part, a sinker, and a sinker cap in the knitting machine for knitting the socks of this invention. FIG. 3 is a plan view of the sinker cap. FIG. 3A shows a state where the sinker cap rotating mechanism is inactive, and FIG. 3B shows a state where the sinker cap rotating mechanism is operating. . In addition, although the cam groove is provided by the cam on the back side (side facing the sinker) of the sinker cap and is not visible from the front side, in FIG. 3, the cam is drawn with a solid line for easy understanding. FIG. 3A also schematically shows the relationship between the cam groove, the sinker, and the knitting needle. It is a diagram for explaining the relationship between the vertical movement of the knitting needle and the movement of the sinker with respect to the knitting needle. It is a top view which shows the relationship between the position of each yarn feeder of a front yarn and a back yarn, and the rotation direction of a cylinder. It is explanatory drawing which shows the positional relationship of the front yarn, back yarn, and sinker supplied. FIG. 7 (a) is a photograph showing the inside of the sock of the present invention turned upside down, and FIG. 7 (b) is a part surrounded by a circle on the left side of FIG. 7 (a) (part knitted by a normal knitting method). FIG. 7C is an enlarged photograph of the stitch of the portion surrounded by the right circle in FIG. 7A (the plump portion knitted by the knitting method of the present invention).

  Hereinafter, the present invention will be described in detail based on the embodiments shown in the drawings.

  FIG. 1 shows an embodiment of a sock 10 according to the present invention. The sock of the present invention comprises a mouth portion 11, a leg portion 12 and a foot portion 13. In the embodiment shown in FIG. 1, the mouth portion 11 (latched diagonal lines are provided for easy understanding). The inside of the shaded portion 12a of the leg portion 12 is a plump portion of the present invention.

  The feature of the sock 10 of the present invention is that the back yarn Y2 in each stitch is inflated to form a plump part inside the sock.

  The sock 10 of the present invention is a spliced knitting using a front yarn Y1 and a back yarn Y2 for the plump portion of the wear mouth portion 11 and the like, and the front yarn Y1 is mainly on the outer side (outer surface) of the sock. Appears and the back yarn Y2 is hardly visible from the outside of the sock, and appears on the inside (inner surface) of the sock with a back stitch. The surface yarn Y1 is not particularly limited as long as it is a knitting yarn made of short fibers or long fibers, and can be appropriately selected according to the use such as for summer, for winter, for men, and for women. The back yarn Y2 is a coated elastic yarn in which a polyurethane elastic yarn is used as a core yarn, and a coated yarn composed of a plurality of crimped filaments is wound around the core yarn. For example, a thread in which wooly nylon thread is wound around spandex, such as FTY, is used.

  For example, in the case of SCY (single covered yarn) as the coated elastic yarn of the back yarn Y2, the thickness of the polyurethane of the core yarn is 20 to 155 dtex, and the thickness of nylon or polyester of the crimped coated yarn is 33 to 166 dtex The number of filaments is suitably about 15 to 75.

  About 1 to 3 back yarns Y2 are used.

  The portions other than the plump portion of the sock 10 may be knitted using the same knitting yarn.

  As will be described below, the plump portion in the present invention is formed by special splicing according to the present invention. Each stitch of the spliced yarn is composed of a front yarn Y1 and a back yarn Y2. In each stitch, the stitch formed by the front yarn Y1 is a normal stitch, but the stitch formed by the back yarn Y2 is a front yarn. The back yarn Y2 is longer than Y1, the core yarn in the back yarn Y2 is shrunk, the covered yarn of the back yarn Y2 is loosened, and the crimp of the filament appears, and the back yarn Y2 swells inside the sock A plump part is formed.

  Below, the knitting method of the plump part in the socks of this invention is demonstrated.

  The sock 10 of the present invention is a K-type single cylinder sock knitting machine and includes a first yarn feeder (also referred to as a 1F yarn path, a main knitting yarn feeder) and a pattern yarn feeder (also referred to as a boss yarn feeder). Knit using a sock knitting machine. The first yarn feeder has 6 to 8 yarn paths. Generally, there are a plurality of yarn paths for the surface yarn, yarn paths for make-up / rubber surface yarn, yarns for make-up / auxiliary yarn. It is used as a path, heel, toe thread path, back thread thread path, etc., and a predetermined thread is fed to the knitting needle from each thread path. On the other hand, the handle yarn feeder is installed on the upstream side of the first yarn feeder with respect to the positive rotation direction (counterclockwise) of the cylinder. Generally, when knitting a polka dot pattern, floral pattern, border pattern, etc. It has a plurality of yarn paths for the yarns used.

  As shown in FIG. 2, the sock knitting machine has a knitting needle 2 arranged on a rotating cylinder 1 so as to be movable up and down. A sinker bed 4 is attached to the upper part of the cylinder 1, and the sinkers 3 are arranged in a radial groove of the sinker bed 4 so as to be movable back and forth with respect to the knitting needle 2. A sinker cap 5 is fitted on the sinker bed 4.

  In the present invention, at the time of knitting the plump part such as the mouth part 11 of the sock 10, the sinker cap 5 is rotated in the direction opposite to the normal rotation direction of the cylinder 1 from the normal position to operate the sinker 3. Advance timing.

  The sinker cap 5 is provided with a cam groove 51 on the back side (side facing the sinker 3) (in the sinker cap 5 shown in FIG. 3, the cam groove 51 is defined by a plurality of cams 52. The sinker cap 5 is not limited to the illustrated one).

  The sinker cap 5 is provided with two butting portions 53 having adjustment screws 54 so as not to rotate together with the cylinder 1. A strut 7 fixed to the machine base is located between the two abutting portions 53. The sinker cap 5 follows the rotation of the cylinder 1 until the adjusting screw 54 of the abutting portion 53 comes into contact with the column 7. The two butting portions 53 exist because the cylinder 1 repeats normal rotation and reverse rotation when knitting the heel portion of the sock 10.

  In a normal state in which a portion other than the plump portion of the sock 10 is knitted, the adjustment screw 54 of one abutting portion 53 of the sinker cap 5 is in contact with the column 7 as shown in FIG.

  According to the present invention, the sinker cap rotating mechanism is provided that rotates the sinker cap 5 in the direction opposite to the normal rotation direction of the cylinder 1 from the normal knitting position.

  In the embodiment shown in FIG. 3, the sinker cap rotation mechanism 6 includes a support member 62 attached to the abutting portion 53 of the sinker cap 5, and an extrusion member 61 slidably provided on the support member 62. And an actuator (not shown) for operating the pushing member 61. Note that the sinker cap rotation mechanism 6 is not limited to the illustrated one, and the support member 62 of the pushing member 61 is installed on the machine base side, and the pushing member 61 pushes the protruding portion (for example, the bumping portion 53) of the sinker cap 5. You may make it push at the time of the action | operation. Further, in order to operate the pushing member 61, it may be mechanically actuated including an electrical component or the like instead of an actuator based on air.

  FIG. 3A shows a non-operating state in which the pushing member 61 of the sinker cap rotating mechanism is retracted, and a normal knitting state in which the pushing member 61 is not in contact with the support column 7. On the other hand, in FIG. 3B, the pushing member 61 is in a projecting state, and the pushing member 61 is in contact with the support column 7. This state is a state in which the cylinder 1 is rotated in the reverse direction (clockwise direction) with respect to the forward rotation direction (counterclockwise direction) of the cylinder 1 as compared with the state shown in FIG. This is a state when knitting a plump part such as the part 11.

  The sinker 3 has a butt 33 (see FIG. 6) at its end engaged with the cam groove 51 of the sinker cap 5, and moves back and forth with respect to the needle 2 as the cylinder 1 rotates. Sometimes assists in holding stitches and determining yarn feed. On the other hand, by rotating the sinker cap 5, the timing of the forward and backward movement of the sinker 3 by the cam groove 51 is shifted.

  FIG. 4 is a diagram for explaining the relationship between the vertical movement of the knitting needle 2 and the forward / backward movement of the sinker 3 with respect to the knitting needle 2. The sinker level is the height of the sinker platform. The movement line of the needle indicates how the needle moves up and down with respect to the needle (indicated by the height of the hook of the needle). On the other hand, the position of the needle is based on the position of the needle on the cylinder, and the movement line of the sinker indicates whether the needle moves forward or backward toward the needle.

  In FIG. 4, the vertical movement of the needle with respect to the sinker level is performed even when the sinker cap rotation mechanism shown in FIG. The same applies to the knitted state of the plump portion (for example, the mouth portion 11) in a state where the sway is acting. However, since the position of the needle and the movement of the sinker in the front-rear direction are different, in FIG. 4, the sinker movement line in the normal knitting state in which the sinker cap rotation mechanism shown in FIG. The movement line of the sinker in the knitting state of the plump part in the state where the sinker cap rotation mechanism shown in FIG.

  The relationship between the needle 2 and the sinker 3 in the normal knitting state will be described based on the states 1 to 12 in FIG. The state changes from state 1 to state 12 with the rotation of the cylinder (that is, the passage of time).

  In state 1, the sinker stops at a position slightly advanced from the position of the needle, holding the pre-made loop (old loop) on the needle with the hook of the sinker, while the needle is higher than the sinker level In position, the loop is caught on the needle spatula. When the cylinder rotates to state 2, the needle rises further, and the needle blade is about to come off the loop. In state 3, the needle has been raised to its highest position, and the spatula is completely removed from the loop and is in a clear state.

  In state 4, the needle is in the highest position, while the sinker is starting to retract. In state 5, the needle is at the highest position, the sinker finishes moving backward, and waits for the next yarn supply. Furthermore, when the cylinder rotates to state 6, the needle begins to descend, and the supplied yarn is received at the lower part of the hook of the needle. At this time, the sinker stays at the retracted position where the yarn fed to the hook of the sinker is not caught. In state 7, while the needle is descending, the supplied yarn is caught by the hook of the needle, while the existing loop (old loop) is starting to wake up. The sinker remains in the retracted position.

  In state 8, the needle is further lowered to the sinker level, the spatula is completely closed and holds the thread in the hook, and the sinker advances from the retracted position to the needle position. In state 9, the needle is in the lowest position below the sinker level, and a new loop (new loop) is formed by passing the needle through the existing loop (old loop), and the ready loop completely moves away from the needle. The sinker is pushed out toward the inside of the cylinder. At this time, since the needle is at the lowest lowered position, the size of the stitch is determined.

  In the state 10, the needle is slightly raised, and the sinker reaches the most advanced position where the pre-formed loop is completely pushed, thereby stabilizing the stitch. In state 11, the needle is raised through the new loop, while the sinker is holding the new loop with the sinker hook in the most advanced position so that the new loop does not lift with the needle. In state 12, the needle is raised further, while the sinker is slightly retracted, but stays forward from the position of the needle, holding the newly created loop. Thereafter, the state returns to state 1 and the knitted fabric is continuously knitted.

  Then, as shown in FIG. 4, the sinker movement line (shown by a solid line) in the knitting state of the plump part in the state where the sinker cap rotating mechanism shown in FIG. Compared with the movement line of the normal knitting state sinker, the movement line of the sinker indicated by the solid line is more advanced than the movement line of the sinker indicated by the dotted line with respect to the movement line of the needle. That is, the operation timing of the sinker 3 at the time of knitting the plump part is earlier than the operation timing of the sinker 3 at the time of normal knitting.

  On the other hand, in the present invention, the yarn paths of the front yarn Y1 and the back yarn Y2 are different from the yarn paths that are normally used. That is, as shown in FIG. 5, the front yarn Y1 is fed from the handle yarn feeder 9 located on the upstream side of the first yarn feeder 8 with respect to the forward rotation direction of the cylinder 1 (indicated by the arrow). The back yarn Y2 is fed from the first yarn feeder 8. Thus, since the yarn feeding positions are different, the front yarn Y1 is supplied to the knitting needle 2 early, but the back yarn Y2 is supplied to the knitting needle 2 later.

  Therefore, as shown in the needle movement line and the solid sinker movement line in FIG. 4, when the cylinder 1 rotates to reach the state 6, the needle 2 starts to descend and the front yarn supplied from the handle yarn feeder 9. Y1 is received at the lower part of the hook of the needle 2. At this time, the sinker 3 remains in the retracted position so that the front yarn Y1 is not caught by the hook 32 of the sinker. In state 7, while the needle 2 is descending, the supplied front yarn Y1 is hooked on the hook of the needle 2, while the existing loop (old loop) is starting to wake up. The sinker 3 advances to the position of the needle 2, and the front yarn Y1 enters the throat 31 (see FIG. 6) of the sinker 3.

  During the states 7 to 8, the sinker 3 continues to advance further, and at the same time, the back yarn Y2 is supplied from the first yarn feeder 8 to the needle 2. At this time, since the sinker 3 is in a position advanced forward (toward the center of the cylinder) from the position of the needle, the back thread Y2 is placed on the hook 32 of the sinker 3, and in this state, the needle 2 The yarn is fed into the hook. In state 8, the needle 2 is further lowered to the sinker level with the front yarn Y <b> 1 and the back yarn Y <b> 2 entering the hook of the needle 2. The spatula closes completely and holds the thread in the hook, and the sinker continues to advance further.

  In state 9, the needle is in the lowest position below the sinker level, and a new loop (new loop) is formed by passing the needle through the existing loop (old loop). The sinker 3 pushes out toward the inside of the cylinder. During this time, the back yarn Y2 remains on the hook 32 of the sinker 3. Then, while the needle 2 is lowered to the lowest position, the front yarn Y1 and the back yarn Y2 fed into the hook of the needle 2 are pulled out as the needle 2 moves downward.

  The size of the stitch is determined by the lowest position of the needle 2, and the size of the stitch (loop length) depends on the distance between the yarn passing position in the sinker and the lowest position of the needle 2 in the height direction of the knitting machine. If the yarn passing position in the sinker changes, the stitch size (loop length) also changes. If the lowest descending position of the needle 2 is the same, the higher the yarn passing position in the sinker, the longer the loop length and the larger the stitch.

  FIG. 6 shows the positional relationship between the front yarn Y1, the back yarn Y2, and the sinker in states 8 and 9. The front yarn Y1 is in the throat 31 of the sinker 3, and the back yarn Y2 is the hook of the sinker 3. It is on 32. In this state, the needle 2 is lowered to the lowest position, while the front yarn Y1 and the back yarn Y2 are pulled out.

  In the present invention, when knitting the plump portion of the sock 10, as shown in FIG. 5, the front yarn Y1 is fed from the handle yarn feeder, the back yarn Y2 is fed from the first yarn feeder, and the front yarn Y1 and The yarn feeding position of the back yarn Y2 is made different from the normal yarn feeding position, and as shown in FIG. 3B, the sinker 3 is rotated to advance the operation timing of the sinker 3 as shown in FIG. Thus, the front yarn Y1 and the back yarn Y2 that are supplied to the same needle 2 during knitting of the splicing yarn (knitting method in which the front yarn Y1 and the back yarn Y2 form a new loop together with one knitting needle) are shown in FIG. 6, the front yarn Y1 is allowed to pass through the throat of the sinker 3 and the back yarn Y2 is placed on the hook 32 of the sinker 3 so as to pass therethrough. The passing position is set higher. As a result, in each stitch of the spliced yarn, the front yarn Y1 has the same loop length as that during normal knitting despite the rotation of the sinker 3, while the loop length of the back yarn Y2 is the front yarn Y1. Longer than the loop length.

  The size of the stitch as the splicing yarn, that is, the dimension in the course direction and the wale direction of the stitch is the same as the size of the surface yarn Y1, but the loop length of the back yarn Y2 is long. It will be in an extra state on the inside. However, the back yarn Y2 is a coated elastic yarn in which a polyurethane elastic yarn is used as a core yarn, and a coated yarn composed of a plurality of crimped filaments is wound around the core yarn. For this reason, the core yarn shrinks and can absorb the extra length, but the coated yarn wrapped around the core yarn remains excessively long, the winding becomes loose, and the crimp of the filament appears, socks The back yarn Y2 (coating yarn) swells inside. In this way, the plump part of the present invention is formed.

  The front yarn Y1 fed from the handle yarn feeder can be changed to a yarn having a different color depending on the sock portion during knitting. Further, the number of covered elastic yarns as the back yarn Y2 fed from the first yarn feeder is not limited to one, and may be two or three. The fitting property can be changed by changing the number of coated elastic yarns used by about 1 to 3 or changing the thickness.

  Further, in FIG. 1, the plump part is formed in the mouth part 11 of the sock and the part 12 a of the leg part 12, but the plump part may be only the mouth part 11, and the leg part 12 is also connected to the foot part 13. Can also be formed. When the leg portions 12 and the foot portions 13 are formed with a plump portion, the wearer's calves and insteps are moderately tightened, providing a sense of support and feeling good.

[Example 1]
Using the following thread, when the knit part of the sock and the upper part of the leg part are knitted by the method of the present invention, the sinker cap rotation mechanism is knitted and the lower part of the leg part and the foot part are knitted. The sock was knitted with the sinker cap rotation mechanism inoperative.

  At the mouth and legs, two 184 dtex yarns of 70% cotton and 30% acrylic are used as the front yarn, and SCY (polyurethane 33 dtex / polyester 83 dtex) and SCY (polyurethane 155 dtex / nylon 77 dtex) are used as the back yarn. used.

  In addition, at the foot portion, three 184 dtex yarns of 70% cotton and 30% acrylic were used as the front yarn, and one SCY of polyurethane 33 dtex / polyester 83 dtex was used as the back yarn.

  FIG. 7 is a photograph of the sock of the present invention knitted according to the above embodiment, (a) shows the inside of the sock by turning it over, and (b) is surrounded by a circle on the left side of (a). It is an enlarged photograph of a spliced yarn knitting stitch of a portion (a portion knitted by a normal knitting method), and (c) is a portion surrounded by a circle on the right side of (a) (a plump portion knitted by the knitting method of the present invention) It is an enlarged photograph of the stitch. When the photograph of (b) and the photograph of (c) are compared, it is clear that the stitches of the photograph of (c) are fluffy. It can be seen that the circled part of the photo in (c) shows that the filaments are scattered and fluffy. Also, in the actual socks taken in the photo, the plump part was thicker and softer than the other parts, and the touch was soft.

1 cylinder 2 needle 3 sinker 31 sinker throat 32 sinker hook 4 sinker bed 5 sinker cap 6 sinker cap rotation mechanism Y1 front thread Y2 back thread

Claims (6)

  The knitting structure of at least the mouth of the sock is a spliced yarn consisting of a front yarn and a back yarn, the front yarn is a yarn consisting of short fibers or long fibers, and the back yarn uses a polyurethane elastic yarn as a core yarn. A coated elastic yarn obtained by winding a coated yarn composed of a plurality of crimped filaments around the core yarn, and each stitch in the spliced yarn is composed of the front yarn and the back yarn, and the back yarn in each stitch The sock is characterized in that the core yarn is shrunk, the back yarn covering yarn is loosened and the filaments are crimped, and the back yarn swells inside the sock.   The knitting structure of at least the mouth of the sock is a spliced yarn consisting of a front yarn and a back yarn, the front yarn is a yarn consisting of short fibers or long fibers, and the back yarn uses a polyurethane elastic yarn as a core yarn. A coated elastic yarn obtained by winding a coated yarn composed of a plurality of crimped filaments around the core yarn, and each stitch in the spliced yarn is composed of the front yarn and the back yarn, and the front yarn is formed when the stitch is formed. As a result, the core yarn in the back yarn is shrunk at each stitch, the covering yarn of the back yarn is loosened and the filaments are crimped, and the back yarn swells inside the sock Socks characterized by being in a state.   The sock according to claim 1 or 2, wherein a portion where the back thread is inflated on the inside of the sock is formed in the wearing mouth portion.   The sock according to claim 1 or 2, wherein a portion in which the back thread swells inside the sock is formed in a mouth part and a leg part.   The sock according to claim 1 or 2, wherein a portion where the back thread is inflated on the inside of the sock is formed in a mouth part, a leg part, and a foot part. At least knitting with knitting yarn using a surface yarn composed of short or long fibers, a polyurethane yarn as a core yarn, and a coated elastic yarn obtained by winding a coated yarn composed of a plurality of crimped filaments around the core yarn as a back yarn When knitting the sock mouth portion, the coated elastic yarn is fed from the first yarn feeder, and the surface yarn is located upstream of the first yarn feeder in the forward rotation direction of the cylinder. Rotate the sinker cap in the opposite direction to the forward rotation direction of the cylinder to advance the timing of the sinker and feed the front yarn fed from the handle yarn feeder into the throat of the sinker. With the covered elastic yarn placed from the first yarn feeder placed on the hook of the sinker, the front yarn and the back yarn are supplied to the hook of the knitting needle, the knitting needle is lowered, and the knitting needle moves the old loop. Escape By forming a new loop, the knitting method of a sock, characterized by knitting the subscript yarn knitting.