JP7458077B2 - Pair sinker, circular knitting machine equipped with pair sinker, and method for knitting double fleece fabric using a circular knitting machine equipped with pair sinker - Google Patents

Description

The present invention relates to a pair sinker, a circular knitting machine equipped with a pair sinker, and a method for knitting a double fleece fabric using a circular knitting machine equipped with a pair sinker.

Conventionally, double fleece knitted fabrics are known in which a basic knitted fabric is knitted from tie-in yarns and knit-in yarns, and a loop is formed by the lay-in yarns on the back side of the basic knitted fabric. Double fleece knitted fabrics are known to be knitted by a circular knitting machine equipped with a pair of sinkers each consisting of two sinkers. The lay-in yarn, the tie-in yarn, and the knit-in yarn are sequentially supplied to the circular knitting machine. The lay-in yarn is supplied between the knitting needles and the pair sinker. The lay-in yarn is pushed out toward the knitting needle by one sinker, so that a loop is formed by the knitting needle and the one sinker. Next, the tie-in yarn is fed to the hook of the knitting needle. The tie-in yarn is entwined with the loop of the lay-in yarn by the knitting needle. Next, the knit-in yarn is fed to the hook of the knitting needle. The knit-in yarn supplied to the knitting needles is entwined with the tie-in yarn in the old loop.

In the method for knitting a double fleece knitted fabric described above, the lay-in yarn is not pushed out by the sinker until the tie-in yarn and the knit-in yarn are entangled with the old loop. In other words, the loop of the lay-in yarn is loosened. Therefore, when the tie-in yarn and the knit-in yarn are entwined in the old loop, the root portion of the loop of the lay-in yarn may be drawn into the old loop by the tie-in yarn. When the root portion of the loop of the lay-in yarn is drawn into the old loop, in the double fleece knitted fabric, the root portion of the loop of the lay-in yarn protrudes onto the surface of the basic knitted fabric. In such a double fleece knitted fabric, a knitting method is known in which the loops of the lay-in yarn do not protrude from the surface of the basic knitted fabric. For example, as in Patent Document 1.

Patent Document 1 discloses that from the time when the tie-in yarn is entwined with the lay-in yarn by the descent of the knitting needle until the time when the knitting needle is raised to catch the knit-in yarn, the tie-in yarn is formed on one sinker of a pair of sinkers. A knitting method is described in which the pile yarn (lay-in yarn) is pressed down so that the lay-in yarn is not loosened by a stepped section for holding down the pile yarn (lay-in yarn). This makes it difficult for the root portion of the loop of the lay-in yarn to be drawn into the loop of the tie-in yarn when the knitting needle is raised. Further, in the knitting method, one sinker is attached to the lay-in yarn so that the lay-in yarn does not loosen after the tie-in yarn is entwined with the lay-in yarn until the tie-in yarn and the knit-in yarn are entwined with the old loop. A knitting method is described in which the root portion of the yarn loop is brought into contact.

Japanese Patent Application Publication No. 3-19943

The knitting method of a double fleece knitted fabric using a pair sinker described in Patent Document 1 suppresses the movement of the lay-in yarn by the frictional force between the lay-in yarn and the sinker. The frictional force between the lay-in yarn and the sinker varies depending on the surface condition of the lay-in yarn and the sinker, the contact condition between the lay-in yarn and the sinker, the temperature, humidity, the presence or absence of a lubricant, etc. Therefore, even if the knitting method is adjusted so that the base of the loop of the lay-in yarn does not protrude from the surface of the basic knitted fabric, the base of the loop of the lay-in yarn may protrude from the surface of the basic knitted fabric depending on the condition of the lay-in yarn and the sinker and the surrounding environmental conditions. In addition, in the knitting method, when the tie-in yarn and the knit-in yarn are pulled in below the upper end of the sinker with the knitting needle, the sinker is separated from the lay-in yarn. Therefore, the loop of the lay-in yarn may be pulled into the old loop, and the base of the loop of the lay-in yarn may protrude from the surface of the basic knitted fabric.

The knitting method for the double fleece knit fabric described above is required to ensure that the base of the loop of the lay-in yarn does not protrude from the surface of the base knit fabric even if the state of the lay-in yarn, the tie-in yarn, and the knit-in yarn, the state of the pair sinker, and the surrounding environment change.

The present invention suppresses protrusion of the lay-in yarn on the surface of the basic knitted fabric even when the conditions of the lay-in yarn, the tie-in yarn, and the knit-in yarn, the condition of the pair sinker, and the surrounding environment change. An object of the present invention is to provide a pair sinker, a circular knitting machine equipped with the pair sinker, and a method of knitting a double fleece knitted fabric using a circular knitting machine equipped with the pair sinker.

The present inventors suppressed the protrusion of the lay-in yarn on the surface of the basic knitted fabric even when the conditions of the lay-in yarn, the tie-in yarn, and the knit-in yarn, the condition of the pair sinker, and the surrounding environment change. We investigated the method of knitting double fleece knitted fabric using pair sinkers, circular knitting machines equipped with pair sinkers, and circular knitting machines equipped with pair sinkers. As a result of intensive studies, the present inventors came up with the following configuration.

In the pair sinker according to an embodiment of the present invention, a basic knitted fabric is knitted from tie-in yarn and knit-in yarn using a circular knitting machine, and a lay-in yarn is entwined with the tie-in yarn to form the lay-in on the back side of the basic knitted fabric. This is a pair of sinkers for knitting double fleece knitted fabrics that form yarn loops.

The pair sinker is composed of a first sinker and a second sinker, which are plate-shaped members whose bases are inserted into the same sinker groove of the circular knitting machine and which can move independently of each other by a predetermined amount in the radial direction of the rotating cylinder of the circular knitting machine. The first sinker extends from the base of the first sinker in the radial direction of the rotating cylinder and has an upper support part that supports the lay-in yarn, the tie-in yarn, and the knit-in yarn, and a lower support part that is located below the upper support part. The second sinker extends from the base of the second sinker in the radial direction of the rotating cylinder and has an insertion part that is inserted into the loop of the lay-in yarn, and a second sinker engagement part that extends upward from the base end of the insertion part and pushes in the lay-in yarn and the tie-in yarn. The upper end surface of the insertion part of the second sinker is positioned below the upper end surface of the upper support part of the first sinker and above the upper end surface of the lower support part of the first sinker.

As described above, the first sinker is moved radially outward of the rotating cylinder so that the lay-in yarn, the tie-in yarn, and the knit-in yarn supported by the upper support part are moved to the lower support. Drop it to the department. The insertion portion of the second sinker is moved inward in the radial direction of the rotating cylinder and is inserted into the loop of the lay-in yarn dropped from the upper support portion. Since the insertion portion of the second sinker is located below the upper end surface of the upper support portion, the loop of the lay-in yarn is radially inward of the rotating cylinder until it reaches the position of the insertion portion. Can be moved. Further, the insertion portion is moved radially inward of the rotating cylinder by a predetermined amount of movement, and pushes out the loop of the lay-in yarn radially inward of the rotating cylinder. That is, the second sinker reliably pulls the loop of the lay-in yarn by a predetermined amount toward the back side of the basic knitted fabric knitted with the tie-in yarn and the knit-in yarn. Thereby, the pair sinker prevents the lay-in yarn from protruding on the surface of the basic knitted fabric even when the conditions of the lay-in yarn, tie-in yarn, and knit-in yarn, the condition of the pair sinker, and the surrounding environment change. can be suppressed.

According to another aspect, the pair sinker of the present invention preferably includes the following configuration. The first sinker has a first sinker engaging portion formed at the tip of the upper support portion, which pushes out the loop of the lay-in yarn into which the second sinker insertion portion is inserted, from the second sinker insertion portion. ing.

As described above, the loop of the lay-in yarn is pushed radially inward of the rotating cylinder by the first sinker engagement portion of the first sinker while the insertion portion of the second sinker is pulled out. In other words, the loop of the lay-in yarn is pushed radially inward of the rotating cylinder by the first sinker engagement portion while the insertion portion of the second sinker is pulled out, so no slack occurs. As a result, the pair sinker can suppress the protrusion of the loop of the lay-in yarn on the surface of the basic knitted fabric even if the state of the lay-in yarn, the tie-in yarn, and the knit-in yarn, the state of the pair sinker, and the surrounding environment change.

According to another aspect, the pair sinker of the present invention preferably includes the following configuration. The first sinker engaging portion has a non-concaved outer edge that bulges in the radial direction of the rotating cylinder from the upper end surface to the lower end surface of the upper support section when viewed in a direction perpendicular to the plate surface of the first sinker. It is formed like this. The second sinker engaging portion is an end surface facing in the radial direction of the rotary cylinder, is connected to the upper end surface of the insertion portion, and is connected to the upper end surface of the upper support portion from below the upper end surface of the upper support portion. It is arranged so as to extend above the end face. The upper end surface of the insertion part is lower than the upper end surface of the upper support part, and is arranged so as to be higher than the lower end surface of the upper support part.

By forming the second sinker as described above, the insertion portion of the second sinker is inserted into the loop of the lay-in yarn by the radial movement of the rotating cylinder, and the loop of the lay-in yarn is pulled by the second sinker engagement portion. Furthermore, the first sinker pushes the loop of the lay-in yarn out of the insertion portion of the second sinker without catching it by the first sinker engagement portion, and moves it to the lower support portion of the first sinker. As a result, the pair sinker can suppress the protrusion of the loop of the lay-in yarn on the surface of the basic knitted fabric even if the state of the lay-in yarn, the tie-in yarn, and the knit-in yarn, the state of the pair sinker, and the surrounding environment change.

According to another aspect, the circular knitting machine including the pair sinker of the present invention preferably includes the following configuration. In the circular knitting machine in a state in which the tie-in yarn entwined with the lay-in yarn and the supplied knit-in yarn are pulled in below the upper support portion of the first sinker by the knitting needles of the circular knitting machine, the upper support portion moves the first sinker supporting the tie-in yarn and the knit-in yarn radially outward of the rotary cylinder to move the tie-in yarn and the knit-in yarn from the upper support part of the first sinker to the While dropping the first sinker onto the lower support part, the second sinker is moved inward in the radial direction of the rotating cylinder, and the insertion part of the second sinker is inserted into the loop of the lay-in yarn. The second sinker pushes out the loop of the lay-in yarn inward in the radial direction of the rotating cylinder by the second sinker engaging portion.

As described above, the circular knitting machine including the pair sinker moves the first sinker radially outward of the rotating cylinder and supports the lay-in yarn by an upper support part of the first sinker; Dropping the tie-in yarn and the knit-in yarn onto the lower support of the first sinker. Further, the circular knitting machine moves the second sinker inward in the radial direction of the rotary cylinder so that the loop of the lay-in yarn falling from the upper support part of the first sinker is attached to the loop of the lay-in yarn above the first sinker. The insertion portion of the second sinker is inserted below the upper end surface of the support portion.

The circular knitting machine pushes the loop of the lay-in yarn inward in the radial direction of the rotary cylinder by a predetermined movement amount by the insertion portion of the second sinker. In other words, the circular knitting machine uses the second sinker to reliably pull the loop of the lay-in yarn by a predetermined amount toward the back side of the basic knitted fabric knitted with the tie-in yarn. As a result, the circular knitting machine equipped with the pair sinker can maintain the surface of the basic knitted fabric even when the conditions of the lay-in yarn, the tie-in yarn, and the knit-in yarn, the condition of the pair sinker, and the surrounding environment change. It is possible to suppress protrusion of the loop of the lay-in yarn.

According to another aspect, the circular knitting machine including the pair sinker of the present invention preferably includes the following configuration. moving the second sinker, in which the insertion part is inserted into the loop of the lay-in yarn, radially outward of the rotary cylinder and moving the first sinker radially inward of the rotary cylinder; A first sinker engaging portion of the first sinker stops the loop of the lay-in yarn from moving outward in the radial direction of the rotating cylinder.

As described above, the circular knitting machine equipped with the pair sinker inserts the loop of the lay-in yarn using the first sinker engaging portion of the first sinker while pulling out the insertion portion of the second sinker from the loop of the lay-in yarn. Push out radially inward of the rotating cylinder. In other words, the lay-in yarn is not loosened because the inserted portion of the second sinker is pulled out while maintaining the state of being pushed out inward in the radial direction of the rotary cylinder by the first sinker engaging portion. As a result, the circular knitting machine equipped with the pair sinker can maintain the surface of the basic knitted fabric even when the conditions of the lay-in yarn, the tie-in yarn, and the knit-in yarn, the condition of the pair sinker, and the surrounding environment change. It is possible to suppress protrusion of the loop of the lay-in yarn.

According to another aspect, the method of knitting a double fleece fabric using a lay-in yarn, a tie-in yarn, and a knit-in yarn using a circular knitting machine equipped with the pair sinker of the present invention preferably includes the following steps.

In the knitting method, the second sinker is moved radially outward of the rotary cylinder than the knitting needles of the circular knitting machine, and the knitting needle is moved above the upper support part of the first sinker. , the lay-in yarn is supplied above the upper support part of the first sinker and between the knitting needle and the second sinker, and the lay-in yarn is supplied from the knitting needle by a second sinker engaging part of the second sinker. The method also includes a step of forming a loop of the lay-in yarn by extruding the lay-in yarn inward in the radial direction of the rotating cylinder.

The knitting method includes a tie-in yarn loop forming step of supplying the tie-in yarn above the second sinker, moving the second sinker radially outward of the rotating cylinder, and then drawing the tie-in yarn below the upper end surface of the upper support part of the first sinker by the knitting needle, and then pushing the lay-in yarn and the tie-in yarn radially inward of the rotating cylinder beyond the knitting needle by the second sinker engagement part, and lifting the knitting needle to the upper support part to entangle the tie-in yarn with the lay-in yarn, thereby forming a loop of the tie-in yarn radially outward of the rotating cylinder beyond the lay-in yarn.

In the knitting method, the second sinker is moved radially outward of the rotating cylinder to supply the knit-in yarn above the upper support part of the first sinker, and the tie-in yarn and the knit-in yarn are separated. and a knit-in yarn loop forming step of forming a loop of the knit-in yarn by drawing the knitting yarn below the upper end surface of the first sinker by the knitting needle.

The knitting method includes moving the first sinker radially outward of the rotating cylinder to remove the lay-in yarn, the tie-in yarn, and the knit-in yarn from the upper support part of the first sinker, and using the knitting needles to The tie-in yarn and the knit-in yarn are pulled in below the lower support part of the first sinker, and the tie-in yarn and the knit-in yarn are connected to the already formed yarn supported by the lower support part of the first sinker. Including the knitting process of intertwining with the old loop.

In the knitting method, when the lay-in yarn, the tie-in yarn, and the knit-in yarn are removed from the upper support portion of the first sinker in the knitting step, an insertion portion of the second sinker is inserted into the loop of the lay-in yarn. The method includes a lay-in yarn adjusting step of inserting the loop of the lay-in yarn and pushing out the loop of the lay-in yarn inward in the radial direction of the rotary cylinder by a second sinker engaging portion of the second sinker.

The knitting method includes a new loop forming step in which the second sinker is moved radially outward of the rotating cylinder and the first sinker is moved radially inward of the rotating cylinder, and a first sinker engaging portion of the first sinker removes the loop of the lay-in yarn from the insertion portion of the second sinker and pushes it radially inward of the rotating cylinder beyond the knitting needle, thereby forming a new loop of the tie-in yarn and the knit-in yarn.

As described above, the method of knitting a double fleece fabric using a circular knitting machine equipped with the pair sinker includes a lay-in yarn loop forming step, a tie-in yarn loop forming step, a knit-in yarn loop forming step, a knitting step, and a lay-in yarn loop forming step, a tie-in yarn loop forming step, a knit-in yarn loop forming step, a knitting step, and a lay-in yarn loop forming step. It includes a thread adjustment step and a new loop forming step. In the lay-in yarn adjustment step, the loop of the lay-in yarn on the upper support portion of the first sinker is adjusted to the lower support portion of the first sinker by moving the first sinker radially outward of the rotating cylinder. fall into. An insertion portion of the second sinker is inserted into the loop of the lay-in yarn by moving the second sinker radially inward of the rotating cylinder. Further, the loop of the lay-in yarn is pulled inward in the radial direction of the rotary cylinder by a predetermined amount by moving the second sinker inward in the radial direction of the rotary cylinder by a predetermined amount. That is, the loop of the lay-in yarn is reliably pulled by a predetermined amount toward the back side of the basic knitted fabric knitted by the tie-in yarn. Thereby, the knitting method allows loops of the lay-in yarn on the surface of the basic knitted fabric to be formed even when the conditions of the lay-in yarn, the tie-in yarn, and the knit-in yarn, the condition of the pair sinker, and the surrounding environment change. protrusion can be suppressed. Note that the height represents the vertical positional relationship when the first sinker and the second sinker are inserted into one sinker groove.

The terminology used herein is for the purpose of defining particular embodiments only, and is not intended to limit the invention.

As used herein, "and/or" includes all combinations of one or more of the associated listed components.

As used herein, the use of "including," "comprising," or "having" and variations thereof refers to the described features, steps, elements, components, and/or , specifying the existence of equivalents thereof, may include one or more of steps, acts, elements, components, and/or groups thereof.

As used herein, "attached," "connected," "coupled," and/or their equivalents are used in a broad sense, including "direct and indirect" attachment; Includes both connections and combinations. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, but can include direct or indirect connections or couplings.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms defined in commonly used dictionaries should be construed to have meanings consistent with the relevant art and their meanings in the context of this disclosure, and unless explicitly defined herein, , not to be interpreted in an ideal or overly formal sense.

In describing the present invention, it is understood that a number of techniques and processes are disclosed, each of which has distinct advantages and may be used in conjunction with one or more, or in some cases all, of the other disclosed techniques.

Therefore, for the sake of clarity, the description of the invention refrains from unnecessarily repeating all possible combinations of individual steps. However, the specification and claims should be read with the understanding that all such combinations are within the scope of the invention.

In this specification, embodiments of a pair sinker, a circular knitting machine equipped with a pair sinker, and a method of knitting a double fleece knitted fabric using a circular knitting machine equipped with a pair sinker according to the present invention will be described.

In the following description, numerous specific examples are set forth to provide a thorough understanding of the invention. However, it will be apparent to one skilled in the art that the invention may be practiced without these specific examples.

Accordingly, the following disclosure should be considered as illustrative of the invention and is not intended to limit the invention to the particular embodiments illustrated in the drawings or description.

[Double fleece knitted fabric]
In this specification, the double fleece knitted fabric means a knitted fabric that is composed of a front loop, a back loop, and a loop-shaped fleece knitted on the back side of the knitted fabric. In the double fleece knitted fabric, the front loops are knitted with tie-in yarns, the back loops are knitted with knit-in yarns, and the fleece is knitted with lay-in yarns. The double fleece knitted fabric is knitted by intertwining the tie-in yarn with the lay-in yarn, and then overlapping the knit-in yarn with the tie-in yarn.
[loop]
In this specification, a loop means a portion formed into a ring shape by curving the middle portion of a yarn using a knitting needle and a sinker. The loop is formed in the shape of an Ω with a part of the ring-shaped portion opened.
[Old Loop]
As used herein, the term "old loop" refers to a portion that has already been formed into a ring shape by an upstream knitting process. In the double fleece knitted fabric, the old loop is composed of already knitted knit-in yarn and tie-in yarn. In the double fleece knitted fabric, a new loop made of the newly formed knit-in yarn and the tie-in yarn is knitted into the old loop.
[Lay-in yarn]
In this specification, the lay-in yarn refers to a yarn that forms a loop of fleece in knitting the double fleece knitted fabric. The lay-in yarn is the yarn that is first supplied to the circular knitting machine when the lay-in yarn, tie-in yarn, and knit-in yarn are used as knitting units.
[Tie-in thread]
In this specification, the tie-in yarn refers to a yarn that forms the loops on the front side in knitting the double fleece knitted fabric. The tie-in yarn is the yarn that is fed to the circular knitting machine next to the lay-in yarn.
[Knit-in yarn]
In this specification, the knit-in yarn refers to a yarn that forms the loop on the back side in knitting the double fleece knitted fabric. The knit-in yarn is the yarn that is fed to the circular knitting machine next to the tie-in yarn.
[Circular knitting machine]
In this specification, a circular knitting machine means a device that makes a cylindrical knitted fabric. The circular knitting machine includes a cylindrical rotating cylinder (needle bed) that rotates when a plurality of knitting needles are housed, and a disc-shaped sinker dial (needle bed) that rotates when a plurality of sinkers are housed. The circular knitting machine knits a cylindrical knitted fabric using the knitting needles and the sinker. A plurality of yarns are supplied to the circular knitting machine. The circular knitting machine can efficiently knit a cylindrical knitted fabric by stacking a plurality of supplied yarns in a spiral shape.

[to intertwine, to intertwine]
As used herein, "entangled" means a state in which one thread is brought into contact with another thread. When a loop of another thread is formed by passing another thread through a loop of one thread, another thread is entangled with the loop of one thread to form a loop. By forming the loop by intertwining threads, certain restrictions are placed on the loop so that its size does not change easily due to frictional forces.

According to one embodiment of the present invention, even when the state of the lay-in yarn, the tie-in yarn, and the knit-in yarn, the state of the pair sinker, and the surrounding environment change, the lay-in yarn on the surface of the basic knitted fabric changes. The protrusion of the loop can be suppressed.

1 is a sectional view of a main part of a circular knitting machine according to an embodiment of the present invention. FIG. 3 shows a side view of a first sinker inserted into a sinker groove according to an embodiment of the present invention. FIG. 13 shows a side view of a second sinker inserted into the sinker groove in accordance with an embodiment of the present invention. 1A and 1B show side and top views of a pair of sinkers inserted into a sinker groove according to one embodiment of the present invention. 1 shows a flowchart of each step in a method for knitting a double fleece knitted fabric according to an embodiment of the present invention. FIG. 2 shows an operation diagram of knitting needles, first sinkers, and second sinkers in a method of knitting a double fleece knitted fabric according to an embodiment of the present invention. A schematic diagram showing the supply of lay-in yarn in the lay-in yarn loop forming step is shown. The schematic diagrams show the time of extruding the lay-in yarn in the lay-in yarn loop forming process and the time of supplying the tie-in yarn t in the tie-in yarn loop forming process. A schematic diagram of the tie-in yarn being drawn in in the tie-in yarn loop forming step is shown. The schematic diagram at the time of extrusion of the tie-in yarn in the tie-in yarn loop forming process is shown. The schematic diagram at the time of supplying the knit-in yarn in the knit-in yarn loop forming process is shown. FIG. 2 is a schematic diagram showing the state in which the knit-in yarn is drawn in in the knit-in yarn loop forming process. The schematic diagram when the lay-in yarn is removed from the upper support part of the first sinker in the knitting process is shown. A schematic diagram is shown in which the tie-in yarn and knit-in yarn in the knitting process are entwined with an old loop, and the lay-in yarn is hooked in the lay-in yarn adjustment process. The schematic diagram at the time of extrusion of the lay-in yarn in the lay-in yarn adjustment process is shown. The schematic diagram when the loop of the lay-in yarn is removed in the old loop forming process is shown.

Each embodiment will be described below with reference to the drawings. In each drawing, the same parts are given the same reference numerals, and the description of the same parts will not be repeated. Note that the dimensions of the components in each drawing do not faithfully represent the actual dimensions of the components or the dimensional ratios of each component.

<Overall configuration of circular knitting machine 1>
A circular knitting machine 1 according to an embodiment of the present invention will be described using FIGS. 1 to 3. FIG. 1 is a cross-sectional view of a main part of a circular knitting machine 1 according to an embodiment of the present invention. FIG. 2 is a side view of the first sinker 12. FIG. 3 is a side view of the second sinker 13. In this embodiment, FIG. 4 is a side view of the pair sinker 11. The circular knitting machine 1 knits a double fleece fabric using lay-in yarn r, tie-in yarn t, and knit-in yarn k.

As shown in FIG. 1, a circular knitting machine 1 is a knitting machine that knits a cylindrical knitted fabric. The circular knitting machine 1 mainly includes a frame 2, a rotating cylinder 3, a knitting needle cam holder 4, a knitting needle cam 5, a knitting needle 6, a sinker dial 7, a sinker cap 8, and a first sinker cam. 9, a second sinker cam 10, a pair sinker 11, a yarn carrier ring support 14, a yarn carrier ring 15, a yarn carrier holder 16, and a yarn carrier 17. The circular knitting machine 1 is installed so that the axis of the rotating cylinder 3 is oriented in the vertical direction.

The frame 2 supports the main components of the circular knitting machine 1. The frame 2 has a substantially cylindrical shape. A rotary cylinder 3 and a sinker dial 7 are supported inside the frame 2. Further, inside the frame 2, a winding device (not shown), a power source (not shown) such as a rotating cylinder 3, etc. are provided. A sinker cap 8 and a yarn carrier ring support 14 are provided on the outer periphery of the frame 2.

The rotating cylinder 3 is a member that continuously moves the plurality of knitting needles 6. The rotating cylinder 3 is formed into a substantially cylindrical shape. Further, the rotary cylinder 3 is configured to be rotatable by a power source (not shown) about an axis as the center of rotation. A plurality of knitting needle grooves 3a, which are grooves for storing and guiding knitting needles 6, are formed on the outer periphery of the rotating cylinder 3. The knitting needle groove 3a is formed to extend in the axial direction of the rotating cylinder 3. Further, the knitting needle grooves 3a are formed at equal intervals in the circumferential direction of the rotating cylinder 3. That is, the knitting needle grooves 3a are formed on the outer circumferential surface of the rotary cylinder 3 at equal center angles around the axis of the rotary cylinder 3.

The knitting needle cam holder 4 is a member that accommodates the knitting needle cam 5 that moves the knitting needle 6. The knitting needle cam holder 4 is formed into a substantially cylindrical shape. The knitting needle cam holder 4 is supported by the frame 2 such that the axis of the rotating cylinder 3 and the axis of the knitting needle cam holder 4 overlap. Thereby, the inner periphery of the knitting needle cam holder 4 and the outer periphery of the rotating cylinder 3 are arranged concentrically when viewed from the axial direction. A knitting needle cam 5 is removably housed in the inner periphery of the knitting needle cam holder 4. The knitting needle cam 5 is a cylindrical groove cam that determines the position of the knitting needle 6 in the vertical direction (in the axial direction of the rotary cylinder 3) for each rotation angle of the rotary cylinder 3. The knitting needle cam 5 is arranged to face the knitting needle groove 3a of the rotating cylinder 3.

The knitting needle 6 is a needle for knitting a knitted fabric that knits the yarn by passing the middle part of the yarn through the old loop Ro (knocking it over). The knitting needle 6 is formed from a plate material formed into a rod shape. A hook 6a for catching yarn is formed at the tip of the knitting needle 6. The hook 6a is provided with a latch 6b that can open and close the opening. When the opening of the hook 6a of the knitting needle 6 is closed by the latch 6b, the yarn is not caught on the hook 6a. A knitting needle protrusion 6c is formed in the middle of the knitting needle 6 and protrudes in a direction perpendicular to the longitudinal direction of the knitting needle 6 and along the plate surface of the plate material. The knitting needles 6 are inserted into the knitting needle grooves 3a of the rotating cylinder 3, respectively. Further, the knitting needle protrusion 6c is inserted into a cam groove of the knitting needle cam 5. As a result, each knitting needle 6 rotates together with the rotating cylinder 3 and is moved in the vertical direction along the cam groove of the knitting needle cam 5.

The sinker dial 7 is a member that continuously moves a plurality of pair sinkers 11. The sinker dial 7 is formed in a substantially circular plate shape. The sinker dial 7 is fixed to the rotating cylinder 3 so that the axis of the sinker dial 7 overlaps with the axis of the rotating cylinder 3. In other words, the sinker dial 7 rotates integrally with the rotating cylinder 3. On the upper surface of the sinker dial 7, a plurality of sinker grooves 7a that are grooves that store and guide the pair sinkers 11 are formed. In addition, the sinker grooves 7a are formed at equal intervals in the circumferential direction of the sinker dial 7. The sinker grooves 7a extend in the radial direction of the sinker dial 7 at equal central angles centered on the axis of the sinker dial 7. In addition, the sinker dial 7 is fixed to the rotating cylinder 3 so that the sinker grooves 7a are located between adjacent knitting needle grooves 3a of the rotating cylinder 3.

The sinker cap 8 is a member that houses the first sinker cam 9 and the second sinker cam 10 that move the pair sinker 11. The sinker cap 8 is formed in a substantially circular plate shape. The sinker cap 8 is arranged on the frame 2 so that the axis of the sinker cap 8 overlaps with the axis of the rotating cylinder 3. The bottom surface of the sinker cap 8 faces the top surface of the sinker dial 7. The first sinker cam 9 and the second sinker cam 10 are detachably housed on the bottom surface of the sinker cap 8. The first sinker cam 9 and the second sinker cam 10 are plate cams that determine the position of the pair sinker 11 for each rotation angle in the radial direction of the sinker dial 7. The first sinker cam 9 and the second sinker cam 10 are arranged to face the sinker groove 7a of the sinker dial 7.

The pair sinker 11 is a member that distributes the supplied yarn to the knitting needles 6, holds the old loop Ro, and assists the knitting needle 6 to pass through the old loop Ro. The pair sinkers 11 are movably housed in a plurality of sinker grooves 7a of the sinker dial 7, respectively. Further, each pair sinker 11 is arranged between adjacent knitting needles 6 housed in the rotating cylinder 3. The pair sinker 11 includes a first sinker 12 and a second sinker 13. Therefore, a first sinker 12 and a second sinker 13 are inserted into one sinker groove 7a, respectively. The first sinker 12 is formed with a first sinker protrusion 12f (see FIG. 2) that protrudes above the sinker groove 7a. Similarly, the second sinker 13 is formed with a second sinker protrusion 13d (see FIG. 3) that protrudes above the sinker groove 7a. The first sinker protrusion 12f is inserted into the cam groove of the first sinker cam 9. The second sinker protrusion 13d is inserted into the cam groove of the second sinker cam 10. As a result, the first sinker 12 and the second sinker 13 rotate together with the sinker dial 7, and the first sinker cam 9 and the second sinker cam 10 rotate in the radial direction of the rotary cylinder 3 (the radial direction of the sinker dial 7). direction).

The yarn carrier ring support 14 is a member that supports the yarn carrier ring 15. The yarn carrier ring support 14 is composed of a plurality of rod-shaped members. A plurality of yarn carrier ring supports 14 are fixed in the circumferential direction of the frame 2 so as to extend upward from the outer peripheral portion of the frame 2. A yarn carrier ring 15 is fixed to the tip portion of the plurality of yarn carrier ring supports 14. The yarn carrier ring 15 is provided with a plurality of yarn carrier holders 16. Further, the yarn carrier holder 16 is provided with a yarn carrier 17 that guides the yarn near the knitting needles 6 and pair sinkers 11. Yarn carrier 17 is arranged above knitting needles 6 and pair sinkers 11.

The circular knitting machine 1 configured in this manner supplies multiple yarns from multiple yarn carrier holders 16 to the vicinity of the knitting needles 6 and pair sinkers 11 via the yarn carriers 17. The circular knitting machine 1 rotates the rotating cylinder 3 to capture each yarn with the knitting needles 6, and distributes the yarns to the knitting needles 6 and supports the loops with the pair sinkers 11. Furthermore, the circular knitting machine 1 rotates the rotating cylinder 3 to move the knitting needles 6 up and down, while moving the pair sinkers 11 in the radial direction of the rotating cylinder 3 to entangle the multiple yarns with the old loops Ro, continuously knitting the fabric.

<Pair Thinker 11>
Next, the pair sinker 11 for double fleece knitted fabric will be specifically described with reference to Figures 2 and 3. The first sinker 12 and the second sinker 13 are inserted into the same sinker groove 7a. Figure 2 is a side view of the first sinker 12 constituting the pair sinker 11. Figure 3 is a side view of the second sinker 13 constituting the pair sinker 11. Figure 4 is a side view and a top view of the pair sinker inserted into the sinker groove 7a.

As shown in FIG. 2, the first sinker 12 is a plate-like member that supports the lay-in yarn r, the tie-in yarn t, and the knit-in yarn k. The first sinker 12 has a first sinker base portion 12a, a lower support portion 12b, an upper support portion 12c, a first sinker engaging portion 12d, a groove portion 12e, and a first sinker protrusion portion 12f. The first sinker 12 is disposed within the sinker groove 7a of the sinker dial 7 in the direction of arrow Ar1, which is the radially inward direction of the rotating cylinder 3 (hereinafter simply referred to as "radially inward"), and the radially outward direction of the rotating cylinder 3. It is configured to be movable in the arrow Ar2 direction (hereinafter simply referred to as "radially outward").

The first sinker base 12a, which is the base of the first sinker, is a plate-like portion that serves as the base for supporting each part of the first sinker 12. The first sinker base 12a is formed in a substantially rectangular shape in a side view. The first sinker base 12a is inserted into the sinker groove 7a. One plate surface of the first sinker base 12a is in sliding contact with the side surface of the sinker groove 7a.

As shown in FIG. 4, the other plate surface of the first sinker base 12a is in slidable contact with one plate surface of the second sinker base 13a in the second sinker 13 (light black part). The lower end surface of the first sinker base 12a is in slidable contact with the bottom surface of the sinker groove 7a. That is, the first sinker 12 has a circumferential position and a vertical position on the sinker dial 7. In this way, the rectangular first sinker base 12a stabilizes the posture and movement state of the first sinker 12 by being inserted into the sinker groove 7a.

The lower support part 12b shown in FIG. 2 is a part that supports the old loop Ro, the lay-in yarn r, the tie-in yarn t, and the knit-in yarn k. The lower support portion 12b is formed into a substantially rectangular shape when viewed from the side. The lower support portion 12b is disposed above the first sinker base 12a and extends radially inward (in the direction of arrow Ar1) from the first sinker base 12a. The upper end surface 12h of the lower support portion 12b protrudes above the sinker groove 7a. The lower support part 12b supports the old loop Ro, the lay-in yarn r, the tie-in yarn t, and the knit-in yarn k by the upper end surface 12h.

The upper support portion 12c is a portion that supports the lay-in yarn r, the tie-in yarn t, and the knit-in yarn k. The upper support part 12c is formed in a substantially rectangular shape that is shorter than the lower support part 12b when viewed from the side. The upper support portion 12c is disposed above the lower support portion 12b and extends radially inward from the first sinker base 12a. The upper support part 12c supports the lay-in yarn r, the tie-in yarn t, and the knit-in yarn k by the upper end surface 12g. Further, the tip of the upper end surface 12g of the upper support portion 12c is formed with an inclined surface for dropping the lay-in yarn r, tie-in yarn t, and knit-in yarn k downward. Further, a first sinker engaging portion 12d is formed on the front end surface of the upper support portion 12c for dropping the loop Rr of the lay-in yarn r hooked on the second sinker 13 downward. The first sinker engaging portion 12d has a depression that bulges radially inward from the upper end surface 12g of the upper support portion 12c to the lower end surface of the upper support portion 12c when viewed in a direction perpendicular to the plate surface of the first sinker 12. It is formed with no outer edge. As a result, the first sinker engaging portion 12d has a function as a guide for guiding the lay-in yarn r, tie-in yarn t, and knit-in yarn k that are in contact with the radially inner and lower end surfaces to the lower support portion 12b. ing.

The groove portion 12e is a portion that captures the old loop Ro. The groove portion 12e includes an upper end surface 12h of the lower support portion 12b and a lower end surface of the upper support portion 12c. That is, the groove portion 12e is formed between the lower support portion 12b and the upper support portion 12c. The groove portion 12e is formed between the upper end surface 12h of the lower support portion 12b and the upper support portion so that the old loop Ro supported on the upper end surface 12h of the lower support portion 12b does not float upward due to the upward movement of the knitting needles 6. It is grasped by the lower end surface of 12c.

The first sinker protrusion 12f is a portion that transmits the force from the first sinker cam 9 to the first sinker 12. The first sinker protrusion 12f is formed in the middle of the first sinker base 12a. The first sinker protrusion 12f protrudes above the sinker groove 7a from the first sinker base 12a along the plate surface of the first sinker 12. The first sinker protrusion 12f is inserted into the cam groove of the first sinker cam 9.

The second sinker 13 shown in FIG. 3 is a plate-shaped member that pushes out the lay-in thread r and the knit-in thread k. The second sinker 13 has a second sinker base 13a, an insertion portion 13b, and a second sinker engagement portion 13c. The second sinker 13 is configured to be movable within the sinker groove 7a of the sinker dial 7 in the radially inward direction of arrow Ar1 and in the radially outward direction of arrow Ar2.

The second sinker base 13a, which is the base of the second sinker, is a plate-shaped portion that serves as the base for supporting each part of the second sinker 13. The second sinker base 13a is formed in a substantially rectangular shape in a side view. The second sinker base 13a is inserted into the sinker groove 7a.

As shown in FIG. 4, one plate surface of the second sinker base 13a is in slidable contact with the other plate surface of the first sinker base 12a. The other plate surface of the first sinker base 12a is in slidable contact with the side surface of the sinker groove 7a. The lower end surface of the second sinker base 13a is in slidable contact with the bottom surface of the sinker groove 7a. That is, the position of the second sinker 13 in the circumferential direction and the position in the vertical direction on the sinker dial 7 are determined. In this way, the rectangular second sinker 13 support part stabilizes the posture and movement state of the second sinker 13 by being inserted into the sinker groove 7a.

The insertion portion 13b shown in FIG. 3 is the portion that is inserted into the loop Rr of the lay-in thread r. The insertion portion 13b protrudes radially inward (in the direction of the arrow) in a side view. The tip of the insertion portion 13b is formed smaller than the inner diameter of the loop Rr of the lay-in thread r. The insertion portion 13b is positioned above the second sinker base 13a and extends radially inward from the first sinker base 12a.

As shown in FIGS. 3 and 4, the upper end surface 13e of the insertion portion 13b is located lower than the upper end surface 12g of the upper support portion 12c of the first sinker 12 inserted into the sinker groove 7a in side view. ing. Furthermore, the lower end surface 13f of the insertion portion 13b is located above the upper end surface 12h of the lower support portion 12b of the first sinker 12 in a side view. With this configuration, the tip of the insertion portion 13b is located within the inner diameter portion of the loop Rr of the lay-in yarn r located between the upper end surface 12g of the upper support portion 12c and the upper end surface 12h of the lower support portion 12b. included. The insertion portion 13b can be inserted into the loop Rr of the lay-in yarn r immediately after the loop Rr of the lay-in yarn r is separated from the upper end surface 12g of the upper support portion 12c. Thereby, the pair sinker 11 can increase the time during which the insertion portion 13b can be inserted into the loop Rr of the lay-in yarn r.

The second sinker engagement portion 13c shown in FIG. 3 is a portion that pushes out the lay-in thread r and the tie-in thread t. The second sinker engagement portion 13c is formed so as to extend upward and radially inward from the base end, which is the end portion of the insertion portion 13b on the second sinker base portion 13a side. In other words, the second sinker engagement portion 13c is an end surface that is inclined radially inward. The lower end of the second sinker engagement portion 13c is connected to the upper end surface 13e of the insertion portion 13b. In addition, the second sinker engagement portion 13c is arranged so as to extend from below the upper end surface 12g of the upper support portion 12c in the first sinker 12 to above the upper end surface 12g of the upper support portion 12c. By being configured in this way, the second sinker engagement portion 13c inclined radially inward can engage and push out the lay-in thread r and the tie-in thread t into the inside of the rotating cylinder 3. In addition, in a side view of the first sinker and the second sinker inserted in the sinker groove 7a, the second sinker engagement portion 13c is located so as to extend from below the upper end surface 12g of the upper support portion 12c of the first sinker 12 to above the upper end surface 12g. In this way, the second sinker engagement portion 13c is configured to be able to push out the lay-in thread r and the tie-in thread t supported by the upper end surface 12g of the upper support portion 12c of the first sinker 12.

The second sinker protrusion 13d is a portion that transmits the force from the second sinker cam 10 to the second sinker 13. The second sinker protrusion 13d is formed at a position that does not overlap the first sinker protrusion 12f in side view. In this embodiment, the second sinker protrusion 13d is formed in the middle of the second sinker base 13a, but it may be at the end and is not limited thereto. The second sinker protrusion 13d protrudes above the sinker groove 7a from the second sinker base 13a along the plate surface of the second sinker 13. The second sinker protrusion 13d is inserted into the cam groove of the second sinker cam 10.

<How to knit double fleece fabric>
Next, a method of knitting a double fleece fabric using the circular knitting machine 1 equipped with the pair sinkers 11 will be described. A double fleece knitted fabric is a knitted fabric in which a loop Rr of a lay-in yarn r is formed on the back side of a basic knitted fabric knitted from a tie-in yarn t and a knit-in yarn k. The circular knitting machine 1 knits a double fleece fabric using each yarn supplied in the order of lay-in yarn r, tie-in yarn t, and knit-in yarn k. Further, the circular knitting machine 1 includes one knitting needle 6, a first sinker 12 located on one side in the circumferential direction of the rotary cylinder 3 in the one knitting needle 6, and a first sinker 12 located on the other side in the circumferential direction of the rotary cylinder 3 in the one knitting needle 6. 2 sinker 13 to form a loop of lay-in yarn r, tie-in yarn t, and knit-in yarn k.

FIG. 5 is a diagram showing a flowchart of each step in the method of knitting a double fleece knitted fabric. The method of knitting a double fleece fabric using the circular knitting machine 1 equipped with pair sinkers 11 includes a lay-in yarn loop forming step S1, a tie-in yarn loop forming step S2, a knit-in yarn loop forming step S3, a knitting step S4, and a lay-in yarn loop forming step S1. It includes a yarn adjustment step S5 and an old loop forming step S6. FIG. 6 is an operational diagram of the knitting needles 6, the first sinker 12, and the second sinker 13 in the double fleece knitting method. The solid line in FIG. 6 is an operation diagram of the first sinker 12. The broken line is an operation diagram of the second sinker 13. The two-dot chain line is an operation diagram of the knitting needles 6. The motion diagram of the first sinker 12 and the motion diagram of the second sinker 13 move outward in the radial direction of the circular knitting machine 1 as they move from the reference line in the direction of arrow Ar3. The motion diagram of the knitting needles 6 moves upward in the circular knitting machine 1 from the reference line in the direction of arrow Ar4.

FIG. 7 is a diagram showing the supply state of the lay-in yarn r in the lay-in yarn loop forming step S1.
As shown in FIGS. 5 to 7, in the lay-in yarn loop forming step S1, the first sinker 12 is placed at the most radially inward forward position P1 within the movable range. The second sinker 13 (light black part) is moved to the most radially outward backward movement position P6 within the movable range (see A in FIG. 6). The second sinker 13 is located radially outward from the knitting needle 6. The hook 6a and the latch 6b are moved above the upper support part 12c of the first sinker 12. At this time, the hook 6a and the latch 6b are in a state of passing through the old loop Ro. That is, the knitting needles 6 are arranged within the old loop Ro. In this positional relationship, the lay-in yarn r is supplied from the yarn carrier 17 above the upper support portion 12c of the first sinker 12 and between the knitting needle 6 and the second sinker 13. At this time, the lay-in yarn r is supplied below the opened latch 6b.

FIG. 8 is a diagram showing the extrusion state of the lay-in yarn r in the lay-in yarn loop forming step S1 and the supply state of the tie-in yarn t in the tie-in yarn loop forming step S2.
As shown in FIGS. 5, 6, and 8, in the lay-in yarn loop forming step S1, the second sinker 13 is moved (see B in FIG. 6). The second sinker engaging portion 13c of the second sinker 13 is moved further inward in the radial direction than the knitting needles 6. The lay-in yarn r is pushed further inward in the radial direction than the knitting needles 6 by the second sinker engaging portion 13c of the second sinker 13. A loop Rr is formed in the lay-in yarn r by the knitting needle 6 and the second sinker 13.

As shown in FIGS. 5, 6, and 8, in the tie-in yarn loop forming step S2, the tie-in yarn t is supplied above the second sinker 13 and below the hook 6a of the knitting needle 6.

FIG. 9 is a diagram showing a state in which the tie-in thread t is pulled in in the tie-in thread loop forming step S2.
As shown in FIGS. 5, 6, and 9, in the tie-in yarn loop forming step S2, the second sinker 13 is moved to a front intermediate position P4 radially outward from the forward position P3 (C in FIG. reference). The tie-in yarn t is caught by the hook 6a of the knitting needle 6 and is drawn by the knitting needle 6 below the upper end surface 12g of the upper support portion 12c of the first sinker 12 (see C in FIG. 6). At this time, the tie-in thread t passes through the lay-in thread r. The latch 6b of the knitting needle 6 is closed by the old loop Ro. This forms a tie-in yarn loop Rt.

FIG. 10 is a diagram showing the extrusion state of the tie-in thread t in the tie-in thread loop forming step S2.
As shown in FIGS. 5, 6, and 10, in the tie-in yarn loop forming step S2, the second sinker 13 is moved to the forward position P3, which is radially inward from the front intermediate position P4 (D in FIG. reference). The lay-in yarn r and the tie-in yarn t are pushed inward in the radial direction from the knitting needles 6 by the second sinker engaging portion 13c. At the same time, the tie-in thread t is lifted up to the upper support part 12c of the first sinker 12 (see D in FIG. 6). As a result, the loop Rt of the tie-in thread t changes from a substantially vertical posture to a substantially horizontal posture. Furthermore, the tie-in yarn t is pushed out inward in the radial direction from the knitting needles 6 together with the lay-in yarn r. The latch 6b of the knitting needle 6 is opened by the loop Rt of the tie-in yarn.

FIG. 11 is a diagram showing the supply state of the knit-in yarn k in the knit-in yarn loop forming step S3.
As shown in FIGS. 5, 6, and 11, in the knit-in yarn loop forming step S3, the knit-in yarn k is moved from the yarn carrier 17 to a position above the upper support portion 12c of the first sinker 12 and above the knitting needle 6. It is supplied below the hook 6a (see E in FIG. 6).

FIG. 12 is a diagram showing the drawing state of the knit-in yarn k in the knit-in yarn loop forming step S3.
As shown in FIGS. 5, 6, and 12, in the knit-in yarn loop forming step S3, the second sinker 13 is moved to a rear intermediate position P5 radially outward from the forward position P3 (in FIG. (See F). The loop Rt of the tie-in yarn t and the knit-in yarn k are drawn downward from the upper end surface 12g of the upper support portion 12c of the first sinker 12 by the knitting needle 6 (see F in FIG. 6). At this time, the knit-in yarn k moves along the inner circumferential surface of the hook 6a, so that it is disposed radially outward from the loop Rt of the tie-in yarn t. As a result, the knit-in yarn k forms a loop Rk of the knit-in yarn k radially outward from the loop Rt of the tie-in yarn t. The latch 6b of the knitting needle 6 is closed with the old loop Ro.

FIG. 13 is a diagram showing a state in which the yarn is removed from the upper support portion 12c of the first sinker 12 in the knitting process S4.
As shown in FIGS. 5, 6, and 13, in the knitting step S4, the first sinker 12 is moved in the direction of the arrow toward the backward movement position P2, which is the most radially outward position within the movable range (FIG. (see G in ). The loop Rt of the lay-in yarn r, the tie-in yarn t, and the loop Rk of the knit-in yarn k supported by the upper support part 12c of the first sinker 12 move toward the lower support part 12b from the upper support part 12c of the first sinker 12. to be dropped (removed). At the same time, the loop Rt of the tie-in yarn t and the loop Rk of the knit-in yarn k are drawn below the lower support portion 12b of the first sinker 12 by the knitting needle 6 (see G in FIG. 6). At this time, the loop Rt of the tie-in yarn t and the loop Rk of the knit-in yarn k pass through the old loop Ro (knock over). That is, the loop Rt of the tie-in yarn t and the loop Rk of the knit-in yarn k are entangled with the already knitted old loop Ro supported by the lower support portion 12b of the first sinker 12.

FIG. 14 is a diagram showing how the tie-in yarn t and the knit-in yarn k are entangled with the old loop Ro in the knitting step S4, and the state in which the lay-in yarn r is hooked in the lay-in yarn adjustment step S5.
As shown in FIGS. 5, 6 and 14, in the lay-in yarn adjustment process, in the knitting process S4, the loop Rr of the lay-in yarn r, the loop Rt of the tie-in yarn t, and the knit-in yarn are When the loop Rk of k is dropped, the second sinker 13 is moved in the direction of the arrow toward the forward position P3, which is radially inward from the rear intermediate position P5 (see H in FIG. 6). The insertion portion 13b of the second sinker 13 is inserted into the loop Rr of the lay-in yarn r.

FIG. 15 is a diagram showing extrusion of the lay-in yarn r in the lay-in yarn adjustment step S5.
As shown in FIGS. 5, 6, and 15, in the lay-in yarn r adjustment step, the second sinker 13 is moved to the forward position P3, which is radially inward from the rear intermediate position P5 (see I in FIG. 6). ). The loop Rr of the lay-in yarn r is pushed radially inward by the second sinker engaging portion 13c of the second sinker 13 (see I in FIG. 6). As a result, the root of the loop Rr of the lay-in yarn r entwined with the loop Rt of the tie-in yarn t is knitted by the loop Rk of the knit-in yarn k from the surface of the basic knitted fabric knitted by the loop Rt of the tie-in yarn t. It is drawn to the back side of the basic knitted fabric. When the root of the loop Rr of the lay-in yarn r protrudes from the surface of the basic knitted fabric, the root of the loop Rr of the lay-in yarn r is pulled from the surface of the basic knitted fabric to the back side of the basic knitted fabric.

FIG. 16 is a diagram showing a state in which the loop Rr of the lay-in yarn r is removed in the old loop forming step S6.
As shown in FIGS. 5, 6, and 16, in the old loop forming step S6, the first sinker 12 is moved to the forward position P1 that is radially inward from the backward position P2. At the same time, the second sinker 13 is moved radially outward in the direction of the arrow (see J in FIG. 6). Thereby, the loop Rr of the lay-in yarn r is stopped from moving radially outward by the first sinker 12. Then, the loop Rr of the lay-in yarn r is removed from the insertion portion 13b of the second sinker 13. Thereby, it is dropped from the insertion part 13b of the movable second sinker 13 onto the lower support part 12b of the first sinker 12. The new loop Rn formed by the loop Rt of the tie-in yarn t and the loop Rk of the knit-in yarn k is captured by the knitting needle 6, and becomes the old loop Ro at the next feeder.

In this way, the insertion part 13b of the second sinker 13 constituting the pair sinker 11 for the double fleece knitted fabric provided in the circular knitting machine 1 is located below the upper end surface 12g of the upper support part 12c of the first sinker 12, and 1 sinker 12 is located above the upper end surface 12h of the lower support portion 12b. Therefore, in the knitting process S4, the loop Rr of the lay-in yarn r dropped from the upper support part 12c of the first sinker 12 moves radially inward before reaching the lower support part 12b of the first sinker 12. The insertion portion 13b of the second sinker 13 is inserted. The loop Rr of the lay-in yarn r is pushed radially inward by the second sinker 13 by a predetermined movement amount. That is, the loop Rr of the lay-in yarn r is reliably pulled by the second sinker 13 by a predetermined amount toward the back side of the basic knitted fabric.

Further, the loop Rr of the lay-in yarn r is pushed out radially inward by the first sinker engaging portion 12d of the first sinker 12 while the insertion portion 13b of the second sinker 13 is being pulled out. In other words, the loop Rr of the lay-in yarn r is kept pushed out radially inward by the first sinker engaging part 12d while the insertion part 13b of the second sinker 13 is pulled out, so that no loosening occurs. As a result, the pair sinker 11, the circular knitting machine 1 equipped with the pair sinker 11, and the knitting method of the double fleece fabric are controlled by the conditions of the lay-in yarn r, tie-in yarn t, and knit-in yarn k, the condition of the pair sinker 11, and the surrounding environment. Even in the case where the loop Rr of the lay-in yarn r changes on the surface of the basic knitted fabric, the pair sinker 11 can suppress the protrusion of the loop Rr of the lay-in yarn r.

Although the embodiments of the present invention have been described above, the embodiments described above are merely examples for implementing the present invention. Therefore, without being limited to the embodiments described above, the embodiments described above can be modified and implemented as appropriate without departing from the spirit thereof.

In the present embodiment, the pair sinker 11, the circular knitting machine 1 equipped with the pair sinker 11, and the method of knitting a double fleece fabric using the circular knitting machine 1 include supplying lay-in yarn r, tie-in yarn t, and knit-in yarn k in this order. A double fleece fabric is knitted using each yarn. However, a double fleece knitted fabric knitted by a pair sinker, a circular knitting machine equipped with the pair sinker, and a double fleece knitted fabric knitting method using the circular knitting machine is made from two yarns, a front loop and a back loop. It is sufficient that the basic knitted fabric consisting of the above-mentioned basic knitted fabric is knitted, and the scale-like fleece is knitted with another yarn on the back knitted fabric.

1 Circular knitting machine 3 Rotating cylinder 11 Pair sinker 12 First sinker 12b Lower support part 12c Upper support part 13 Second sinker 13b Insertion part 13c Second sinker engaging part r Lay-in yarn t Tie-in yarn k Knit-in yarn Rr Lay-in yarn loop

Claims (6)

A pair sinker for knitting a double fleece fabric by knitting a base fabric from a tie-in yarn and a knit-in yarn using a circular knitting machine, and entangling a lay-in yarn with the tie-in yarn to form a loop of the lay-in yarn on the back surface of the base fabric,
The pair sinker is
The present invention is composed of a first sinker and a second sinker, which are plate-like members each having a base inserted into the same sinker groove of the circular knitting machine and movable independently of each other in the radial direction of the rotary cylinder of the circular knitting machine;
The first sinker is
The first sinker has an upper support portion extending in a radial direction of the rotating cylinder from a base portion thereof and supporting the lay-in yarn, the tie-in yarn and the knit-in yarn, and a lower support portion positioned below the upper support portion;
The second sinker is
A pair sinker having an insertion portion extending radially from the base of the second sinker in the rotating cylinder and inserted into the loop of the lay-in thread, and a second sinker engagement portion extending upward from the base end of the insertion portion and pushing in the lay-in thread and the tie-in thread, wherein the upper end surface of the insertion portion is positioned below the upper end surface of the upper support portion and above the upper end surface of the lower support portion. The pair sinker according to claim 1,
The first sinker is
A pair of sinkers, wherein a first sinker engaging portion is formed at a distal end portion of the upper support portion to push out the loop of the lay-in yarn into which the insertion portion of the second sinker is inserted from the insertion portion of the second sinker. The pair sinker according to claim 2,
The first sinker engaging portion is
When viewed in a direction perpendicular to the plate surface of the first sinker, the upper support part is formed to have an outer edge without a depression that bulges in the radial direction of the rotating cylinder from the upper end surface to the lower end surface,
The second sinker engaging portion is
An end face facing in the radial direction of the rotary cylinder, connected to the upper end face of the insertion part, and arranged to extend from below the upper end face of the upper support part to above the upper end face of the upper support part. is,
The pair sinker is arranged such that the upper end surface of the insertion part is lower than the upper end surface of the upper support part and higher than the lower end surface of the upper support part. A circular knitting machine comprising the pair sinker according to any one of claims 1 to 3,
In a state in which the tie-in yarn entangled with the lay-in yarn and the supplied knit-in yarn are pulled below the upper support portion of the first sinker by the knitting needles of the circular knitting machine,
A circular knitting machine in which the first sinker, which supports the tie-in yarn and the knit-in yarn by the upper support portion, is moved radially outward of the rotating cylinder to drop the tie-in yarn and the knit-in yarn from the upper support portion of the first sinker to the lower support portion of the first sinker, while the second sinker is moved radially inward of the rotating cylinder to insert the insertion portion of the second sinker into the loop of the lay-in yarn, and the loop of the lay-in yarn is pushed radially inward of the rotating cylinder by the second sinker engagement portion of the second sinker. 5. The circular knitting machine according to claim 4,
A circular knitting machine, comprising: moving the second sinker, the insertion portion of which is inserted into the loop of the lay-in yarn, radially outwardly of the rotating cylinder and moving the first sinker radially inwardly of the rotating cylinder, and stopping the radially outward movement of the loop of the lay-in yarn of the rotating cylinder by the first sinker engagement portion of the first sinker. A method of knitting a double fleece fabric using a lay-in yarn, a tie-in yarn, and a knit-in yarn using a circular knitting machine according to claim 4 or 5, comprising:
The first sinker is moved radially outward of the rotating cylinder to remove the lay-in yarn, the tie-in yarn, and the knit-in yarn from the upper support part of the first sinker, and the tie-in yarn and the knit yarn are removed by the knitting needles. The tie-in yarn and the knit-in yarn are pulled in below the lower support part of the first sinker, and the tie-in yarn and the knit-in yarn are entwined with the already knitted old loop supported by the lower support part of the first sinker. The organization process and
In the knitting process, when the lay-in yarn, the tie-in yarn, and the knit-in yarn are removed from the upper support part of the first sinker, the insertion part of the second sinker is inserted into the loop of the lay-in yarn, and the insertion part of the second sinker is inserted into the loop of the lay-in yarn. a lay-in yarn adjustment step of pushing out the loop of the lay-in yarn inward in the radial direction of the rotary cylinder by a second sinker engaging portion of two sinkers;
The second sinker is moved radially outward of the rotary cylinder, and the first sinker is moved radially inward of the rotary cylinder, and the lay-in yarn is moved by the first sinker engaging portion of the first sinker. a new loop forming step of forming a new loop of the tie-in yarn and the knit-in yarn by removing the loop from the insertion part of the second sinker and pushing it out further inward in the radial direction of the rotating cylinder than the knitting needles; A method of knitting a double fleece knitted fabric.

Images