JP2012077418A - Method for split-knitting of stitch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for split-knitting of a stitch, which can perform split-knitting of a stitch using latch needles, as in the case of compound needles, without yarn feeding.SOLUTION: A latch needle FB of a front needle bed, which holds a stitch fb in a hook, is advanced until the stitch fb moves beyond a latch to the outside of the hook, and a latch needle BA of a rear needle bed opposed thereto is advanced so as to hold a stitch fb1 in a hook of the latch needle BA. Then, when the latch needles FB and BA of the front and rear needle beds are retracted, the latch needle BA of the rear needle bed, which holds the stitch fb1 in the hook, is retracted to a retracted position. On the other hand, the retraction of the latch needle FB of the front needle bed is stopped at an intermediate position such that the stitch fb, which moves when the latch needle FB of the front needle bed is retracted, does not move beyond the latch and is kept being held in the outside of the hook, thereby performing split-knitting of the stitch fb. Then, an operation is subsequently performed such that the latch needle FB is advanced from the intermediate position, and an empty needle BZ of the rear needle bed is advanced so that the stitch fb in the outside of the hook of the latch needle FB is transferred to the empty needle BZ of the rear needle bed.

Description

  The present invention relates to a split increasing method for increasing the split of stitches during knitting of a knitted fabric.

  Conventionally, at least a pair of front and rear needle beds provided with a plurality of latch needles provided with hooks that swing open and close to swing back and forth are provided with their tooth portions close to each other. There is known a flat knitting machine in which a needle bed is configured to be movable relative to the left and right. When such a flat knitting machine is used, the stitch hooked on the latch needle of one of the front and back needle beds is advanced, and the latch needle of the other needle bed is advanced to hook the latch needle. At the same time, the yarn is fed to the hook of the latch needle of one of the needle beds, and the latch needles of both needle beds are retracted, whereby the stitches can be increased (see, for example, Patent Document 1).

  There is also a flat knitting machine provided with a plurality of compound needles having hooks that are opened and closed by sliding of a slider. In such a flat knitting machine, the stitches hooked to the hooks of the compound needles of one of the front and back needle beds, the sliders of the compound needles are moved along with the advancement of the compound needles of the other needle beds. By operating and hooking on the hook, it is possible to increase the number of stitches without accompanying yarn (for example, see Patent Document 2).

WO2007 / 119272 A1 Publication JP-A-3-279448

  However, in both of the above-mentioned conventional ones, the structures of the knitting needles are different from each other, so that the finished knitted fabrics are different depending on the presence or absence of yarn supply when increasing the number of stitches.

  The present invention has been made in view of the above points, and an object of the present invention is to split the stitches by using a latch needle that can increase the number of stitches without supplying yarn in the same manner as a compound needle. It is to provide an increase method.

  In order to achieve the above object, according to the present invention, a needle bed provided with a plurality of latch needles provided with hooks that swing open and close by swinging and moving back and forth is at least in a state in which the tooth mouth portion is close to the needle bed. Using a flat knitting machine that is provided with a pair of front and rear, and the front and back needle beds are configured to be movable relative to the left and right, the stitches that are hooked on the latch needle of one of the front and back needle beds Suppose that the stitch is increased by moving the latch needle of the other needle bed and hooking it on the hook of the latch needle. Then, the latch needle of the one needle bed that holds the stitch in the hook is advanced until the stitch moves beyond the latch and moves out of the hook, and the latch needle of the other needle bed is advanced. Then, the stitch that has been moved out of the latch needle hook of the one needle bed is hooked on the hook of the latch needle. Thereafter, when the latch needles of the front and back needle beds are retracted, the latch needles are retracted to the retracted position while the stitches are hooked on the hooks of the other needle bed. The retraction of the latch needle is stopped at an intermediate position so that the stitch that moves as the latch needle of the needle bed moves is kept hooked outside the hook without crossing the latch needle. Thus, the stitches are hooked on the latch needles of the front and rear needle beds, respectively, and the number is increased. Thereafter, the latch needle of the one needle bed is advanced from the middle position, and the knitting operation of the stitches that are hooked outside the hook of the latch needle is continuously performed.

  Further, as the knitting operation, when the latch needle of the one needle bed is advanced from the middle position, the empty needle of the other needle bed is advanced, and is hooked outside the hook of the latch needle of the one needle bed. An operation may be applied in which the stopped stitch is hooked onto the empty needle of the other needle bed and transferred.

  On the other hand, as the knitting operation, when the latch needle of the one needle bed is advanced from the middle position, a new knitting yarn is supplied and then the latch needle is retracted to hook the knitting yarn. An operation may be applied in which a stitch that has been hooked outside the hook of the latch needle is knocked over and a new stitch is formed on the hook following the stitch that has been knocked over.

  According to the method of increasing the stitches according to the present invention, the stitches which are increased by splitting the stitches on the hooks of the latch needles of the other needle bed and hooked outside the hooks of the latch needles of the one needle bed, The retraction of the latch needle on one needle bed is in the middle so that it can be held outside the hook without crossing the latch even if it moves relative to the advance side with the retraction of the floor latch needle. By stopping at, it is possible to increase the number of stitches without using yarn as in the case of compound needles using a latch needle.

  Also, when the latch needle of one needle bed is advanced from the middle position, the empty needle of the other needle bed is advanced so that the stitches that are hooked outside the hook of the latch needle of one needle bed are the other. The operation of hooking and transferring to an empty needle on the needle bed can be continued to the extra operation.

  On the other hand, when one of the latch needles is advanced from the middle position, a new knitting yarn is fed from the yarn feeder, and then the latch needle is retracted. The hook that is hooked on the hook of the needle and the stitch that has been hooked outside the hook of the latch needle is knocked over, and the operation of forming a new stitch on the hook following the stitch that has been knocked over is performed in succession. be able to.

It is a side view which shows the structure of the latch needle which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the stitch increase operation | movement which concerns on the 1st Embodiment of this invention, and the transfer operation | movement following this. FIG. 2 is a perspective view showing a state where the stitches are increased by the latch needle of FIG. 1. It is explanatory drawing which shows the transfer operation | movement following the split increase operation | movement of the stitch which concerns on the 2nd Embodiment of this invention. It is explanatory drawing which shows the formation operation of the new stitch following the split increase operation | movement of the stitch which concerns on the 3rd Embodiment of this invention.

  Hereinafter, the latch needles used in the method of increasing the stitches according to the first embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing the structure of the latch needle 1, FIG. 2 is an explanatory view showing the stitch increasing operation and the subsequent transfer operation, and FIG. 3 is a perspective view showing the stitch increasing state of the latch needle 1. ing.

  The latch needles 1 are arranged in a large number on the needle beds before and after a flat knitting machine (not shown). The front and back needle beds are provided in a square shape with their tooth portions close to each other, and are provided in a flat knitting machine having a known structure configured to be relatively movable in the left and right directions. The front and rear needle beds are provided with needle grooves for accommodating the latch needles 1 so as to be capable of moving back and forth in the direction of moving back and forth with respect to the tooth opening.

  The latch needle 1 is a general latch needle provided with a hook 12 that hooks a stitch on a needle body 11 on the tip side facing the tooth opening and a latch 13 that opens and closes the hook 12. A needle jack 14 is connected to the needle body 11 at its proximal end, and a blade 15 is added to one side. The needle jack 14 is provided with a front bat 17 and a rear bat (not shown) at intervals.

  Next, step S1 in FIG. 2 shows a split increasing operation for splitting a stitch held on the latch needle of the front needle bed by the split needle method of the present invention and a subsequent transfer operation. This will be described in detail based on S8. In this case, description will be given using the latch needles FA to FE on the front needle bed and the latch needles BA (BZ) to BE on the rear needle bed.

  First, in S1, the stitches fa to fd are hooked on the latch needles FA to FD of the front needle bed, and in S2, the latch needles FC and FD serving as transfer needles are placed on a track formed by a plurality of cams in the carriage. Accordingly, it advances to the mouth side (hereinafter simply referred to as advance of the latch needle). At this time, the stitches fc and fd hooked on the hooks 12 of the latch needles FC and FD retreat relative to the advancing latch needles FC and FD, and each of the latches 13 swings toward the retreat side. Then, the hook 12 is released and moved to the position of the blade 15 along the needle stem. Further, the latch needles BC and BD as the receiving needles are advanced from the opposing back needle bed, and the hooks 12 of the latch needles BC and BD are inserted into the blades 15 of the latch needles FC and FD (transfer needle). After that, by retracting the latch needles FC, FD, BC, BD of the front and back needle beds from the mouth side according to the trajectory by each cam in the carriage (hereinafter simply referred to as retracting the latch needle), Transfer of the stitches fc, fd to the latch needles BC, BD on the rear needle bed is completed. By this transfer, the latch needles FC and FD become empty needles.

  In S3, the rear needle bed is racked by one pitch (one stitch) to the right (in the direction indicated by the white arrow in FIG. 2), and in S4, the stitches fc, fd of the latch needles BC, BD of the rear needle bed Is transferred to the latch needles FD and FE of the front needle bed in the same procedure, and the latch needle FC of the front needle bed is set as an empty needle.

In S5, the latch needle FB on the front needle bed and the latch needle BA on the rear needle bed opposite to the front needle bed are advanced, and the stitch fb that retreats relative to the advanced latch needle BA moves from the hook 12 to the needle. It moves to the position of the blade 15 along the trunk, and the hook 12 of the latch needle BA on the rear needle bed is inserted into the stitch fb and is hooked. Then, the latch needles FB and BA are retracted respectively. At this time, although the latch needle BA on the rear needle bed has finished retracting, the stitch fb that advances relative to the retracting needle FB exceeds the latch 13 when the latch needle FB on the front needle bed is retracted. Without stopping the hook 12 (for example, a position on a closed latch 13 as shown in FIG. 3), it stops at an intermediate position so as to be maintained. As a result, the stitch fb of the latch needle FB on the front needle bed is increased as the stitch fb1 of the latch needle BA on the rear needle bed. In this case, the stop of the retraction at the midway position of the latch needle FB on the front needle bed is that the front bat 17 or the rear bat is guided to a different track from the normal transfer track by each cam in the carriage. Is done by.

  In S6, the rear needle bed is racked to the right (in the direction indicated by the white arrow in FIG. 2) for one pitch (one stitch), and in S5, the latch needle of the front needle bed that has been stopped at an intermediate position. The latch needle BZ of the rear needle bed that becomes an empty needle is made to face the FB. Next, the latch needle FB on the front needle bed is advanced from the middle position, and the latch needle BZ on the rear needle bed is advanced. Thereafter, the latch needles FB and BZ of the front and rear needle beds are retracted to transfer the stitch fb hooked outside the hook 12 of the latch needle FB to the latch needle BZ (empty needle) of the rear needle bed. Thereafter, in S7, the latch needles BZ and BA of the rear needle bed and the latch needles FB and FC of the front needle bed are advanced, and stitches fb and fb1 which are relatively retracted with respect to the advanced latch needles FB and FC are set. The hook 12 is moved along the needle stem to the position of the blade 15. Then, the stitches fb and fb1 moved to the position of the blade 15 are hooked on the hooks 12 of the latch needles FB and FC of the front needle bed, and the latch needles BZ and BA of the rear needle bed and the latch needles FB and FC of the front needle bed. , Respectively, to complete the transfer of the stitches fb and fb1 to the latch needles FB and FC of the rear needle bed. Then, the rear needle bed is racked by two pitches (for two stitches) on the left side (the direction indicated by the white arrow in FIG. 2) and returned to the original position. Note that the stitches fb and fb1 may be transferred to the latch needles FB and FC of the rear needle bed individually instead of two stitches simultaneously.

  In S8, the knitting yarn is fed to form new stitches fa2 to fd2 following the stitches fa, fb1, fc, and fd hooked on the latch needles FA, FC to FE of the front needle bed.

  In the present embodiment, the retraction of the latch needle FB is stopped at an intermediate position so that the stitch fb does not exceed the latch 13 of the latch needle FB on the front needle bed and is held outside the hook 12. By doing so, the stitch fb can be increased by using the latch needle without the yarn feeding as in the case of the compound needle.

  Further, the latch needle FB of the front needle bed is advanced from the middle position, and the latch needle BZ (empty needle) of the rear needle bed facing this is advanced, so that the latch needle FB of the front needle bed is moved outside the hook 12. The operation of transferring the stitch fb that has been hooked to the latch needle BZ of the rear needle bed can be continued to the extra operation.

Next, a second embodiment of the present invention will be described with reference to FIG.
FIG. 4 is an explanatory diagram showing the transfer operation following the stitch increasing operation by the split increasing method of the present invention. In this embodiment, the stitches held on the latch needles on the rear needle bed are split and increased on the latch needles on the front needle bed. In this embodiment, since it overlaps with the description of S1 to S4 of FIG. 2 described in the first embodiment, only the flow after S5 following S1 to S4 will be described.

  That is, in S5 of FIG. 4 following S1 to S4 of FIG. 2, the latch needle FB to be the transfer needle is advanced to the tooth opening, and the latch needle BA to be the receiving needle is advanced from the rear needle bed facing this. At this time, the stitch fb that is hooked on the hook 12 of the latch needle FB is relatively retracted to the position of the blade 15 by opening the hook 12 and transferred to the hook 12 of the latch needle BA.

  In S6, the latch needle BA on the rear needle bed and the latch needle FB on the front needle bed facing the needle needle BA are advanced, and the stitch fb retracted to the position of the blade 15 relative to the advanced latch needle BA. The hook 12 of the latch needle FB on the front needle bed is hooked. Then, the latch needles BA and FB are retracted respectively. At this time, the latch needle FB on the front needle bed finishes retracting, while the retracting of the latch needle BA on the rear needle bed causes the stitch fb that advances relative to the retracting latch needle BA to move to the latch 13. It stops in the middle position so that it may be kept in the state hooked outside the hook 12 without exceeding. As a result, the stitch fb of the latch needle BA on the rear needle bed is increased as the stitch fb1 of the latch needle FB on the front needle bed.

  In S7, the rear needle bed is racked to the right (in the direction indicated by the white arrow in FIG. 4) by one pitch (one stitch), and in S6, the retracting needle is stopped at the midway position. The latch needle FC on the front needle bed, which is an empty needle, is made to face the BA. Next, the latch needle BA of the rear needle bed is advanced from the middle position, and the latch needle FC of the front needle bed is advanced. Thereafter, by retracting the latch needles FC and BA of the front and rear needle beds, the stitch fb that is hooked outside the hook 12 of the latch needle BA is transferred to the latch needle FC (empty needle) of the front needle bed.

  In S8, the rear needle bed is racked by two pitches (for two stitches) on the left side (the direction indicated by the white arrow in FIG. 4) and returned to the original position. Thereafter, the knitting yarn is fed to form new stitches fa2 to fd2 following the stitches fa to fd hooked on the latch needles FA and FC to FE of the front needle bed.

  Also in the present embodiment, the latch needle BA is retracted at an intermediate position so that the stitch fb does not exceed the latch 13 of the back needle bed BA but is latched outside the hook 12. By stopping, the stitch fb can be increased by using the latch needle without yarn feeding.

  Further, the latch needle BA of the rear needle bed is advanced from the middle position, and the latch needle FC (empty needle) of the front needle bed facing this is advanced, so that the hook needle BA of the rear needle bed BA is outside the hook 12. The operation of transferring the stitch fb that has been hooked to the latch needle BA of the front needle bed can be performed following the operation.

Next, a third embodiment of the present invention will be described with reference to FIG.
FIG. 5 is an explanatory diagram in the case of performing an operation of forming a new stitch on the stitch outside the hook following the stitch increasing operation of the stitch by the split increasing method of the present invention. In this embodiment, the operation of forming a new stitch on the stitches outside the hook is performed following the split increasing operation. In this embodiment, since it overlaps with the description of S1 to S5 in FIG. 2 described in the first embodiment, only the flow after S6 following S1 to S5 will be described.

  That is, in S6 of FIG. 5 following S1 to S5 of FIG. 2, the rear needle bed is racked by one pitch (one stitch) to the right (in the direction indicated by the white arrow in FIG. 5), and the latch needle of the front needle bed is The latch needle FC of the front needle bed that becomes the empty needle is made to face the latch needle BA of the rear needle bed that holds the stitch fb1 split from FB. Next, in step S7, the latch needle BA on the rear needle bed and the latch needle FC on the front needle bed are advanced, and then the latch needles FC and BA on the front and back needle beds are retracted, respectively. The stitch fb1 is transferred to FC (empty needle).

  Thereafter, in S8, the rear needle bed is racked by two pitches (for two stitches) on the left side (the direction indicated by the white arrow in FIG. 4) and returned to the original position. Then, the latch needle FB on the front needle bed that has hooked the stitch fb outside the hook 12 is advanced from the middle position. When the knitting yarn is newly fed from the yarn feeder and the latch needle FB of the front needle bed is retracted, the knitting yarn newly fed from the yarn feeder is hooked by the hook 12 and retracted. The stitch fb that advances relative to the latch needle FB swings the latch 13 forward to close the hook 12, and the stitch fb is knocked over. Then, a new stitch fb2 following the knocked-over stitch fb is formed by a stitch (newly fed yarn) hooked on the hook 12.

  Also in the present embodiment, the latch needle FB is retracted at a midway position so that the stitch fb is kept outside the hook 12 without exceeding the latch 13 of the latch needle FB on the front needle bed. By stopping, the stitch fb can be increased by using the latch needle without yarn feeding.

  Further, when the latch needle FB on the front needle bed is advanced from the middle position, the knitting yarn is newly fed from the yarn feeder, and then the latch needle FB is retracted, so that the knitting fed from the yarn feeder is performed. The yarn is hooked on the hook 12 of the latch needle FB, the stitch fb hooked outside the hook 12 of the latch needle FB is knocked over, and a new stitch fb2 following the stitch fb knocked over is hooked on the hook 12. The operation of forming with the hooked stitch (knitting yarn) can be performed following the extra operation.

  The present invention is not limited to the above-described embodiments, and can be implemented without departing from the spirit of the present invention.

1, FA to FE, BA (BZ) to BE, latch needle 12 hook 13, latch fb stitch

Claims (3)

At least a pair of front and back needle beds provided with a plurality of latch needles provided with hooks that swing open and close by swinging the back and forth are provided with their tooth portions close to each other. Using a flat knitting machine that is configured to move relative to the left and right, the latch needle on one of the front and back needle beds is advanced and the latch needle on the other needle bed is advanced. A method for increasing the stitches to be increased by hanging on the hook of the latch needle,
The latch needle of the one needle bed that holds the stitch in the hook is advanced until the stitch moves beyond the latch and moves out of the hook, and the latch needle of the other needle bed is advanced. Hang the stitches that have moved out of the hook of the one needle bed on the hook of the latch needle,
Thereafter, when the latch needles of the front and back needle beds are retracted, the latch needles are retracted to the retracted position while the stitches are hooked on the hooks of the other needle bed. The retraction of the latch needle is stopped at an intermediate position so that the stitch that moves as the latch needle of the needle bed moves is kept hooked outside the hook without crossing the latch needle. In this way, the stitches on the front and back needle beds are respectively hooked and increased,
Thereafter, the stitch increasing method of the stitch, wherein the latch needle of the one needle bed is advanced from the middle position and the knitting operation of the stitch that is hooked outside the hook of the latch needle is continuously performed.   As the knitting operation, when the latch needle of the one needle bed is advanced from the middle position, the empty needle of the other needle bed is advanced, and is latched outside the hook of the latch needle of the one needle bed. The method for increasing the number of stitches according to claim 1, wherein an operation is applied in which the stitches being held are transferred to the empty needles on the other needle bed.   As the knitting operation, when the latch needle of the one needle bed is advanced from the middle position, a new knitting yarn is supplied and then the latch needle is retracted, and the knitting yarn is hooked on the hook. The stitch division according to claim 1, wherein the operation of knocking over a stitch that has been hooked outside the hook of the latch needle and forming a new stitch on the hook following the stitch that has been knocked over is applied. How to increase.

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