JPH11200204A - Method for forming knit loop with knitting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the closure of a latch before the engagement of a knitting yarn on a knitting needle. SOLUTION: A knit loop is formed by forwarding a knitting needle to a tack position, keeping at the position, moving to a clearing position and retracting to a stitch forming position. Accordingly, the closure of a latch is inhibited by an old loop being in contact with the latch when the knitting needle is waiting at a tack position and inhibited by a knitting yarn existing in a latch rotation region during the period from the further forwarding of the knitting yarn to the clearing position to the retraction of the yarn to a yarn engaging position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a knit loop by moving a knitting needle forward and backward.

[0002]

2. Description of the Related Art As shown in FIG.
A plurality of knitting needles 12 are arranged in parallel on the front and rear needle beds 14 so as to be movable in the front-rear direction, and a latch opener 16 is provided corresponding to the needle beds 14 (for example, JP-A-7-42053). Each knitting needle 12 has a hook 20 that locks the knitting yarn 18 and a latch 22 that opens and closes a release portion of the hook 20 at the distal end of the needle main body 24.

As shown in FIG. 5, each knitting needle 12 is maintained at the start position C when not knitting. FIG.
When attention is paid to two knitting needles 12, a temporal movement locus of the tip of the knitting needle 12 is shown. Each of the plurality of knitting needles 12 moves back and forth as shown in FIG. 5 sequentially from the knitting needles 12 near the yarn feeder 26 in synchronization with the running position of the yarn feeder 26. The yarn feeder 26 is shown corresponding to the running position of the yarn feeder at the time when the knitting needle 12 has reached the start position C from the most advanced position A.

When forming a knit loop, the knitting needles 12
Is advanced from the start position C to the most advanced position A as shown by the two-dot chain line in FIG. 4, and then the knitting yarn 18 from the yarn feeder 26 is drawn as the knitting needle 12 shown by the solid line in FIG.
Is retracted to the standby position B for receiving, and stands by at that position.
It is assumed that the knitting needles 12 provided on the front and rear needle beds 14 can perform the same forward and backward movements, and that the mounting positions of the respective latch openers 16 corresponding to the needle beds 14 are the same. The two-dot chain line knitting needle 12 indicates a state where it is assumed that the knitting needle 12 of the needle bed 14 on the right side in the figure has advanced to the most advanced position A. Next, the knitting needle 12 is retracted to the stitch forming position D in a state where the knitting yarn 18 is locked to the hook 20 at the locking position K, temporarily stopped at that position, and then advanced to the start position C. .

[0005] The standby position B is near the tack position forward (or above) the tip position X of the latch opener 16,
The tip position X of the latch opener 16 is set at the weft 18 and the knitting needle 1.
2 is located forward of the yarn locking position K for locking. The latch 22 of the knitting needle 12 that is rising from the start position C to the most advanced position A starts to contact the latch opener 16 from the position B.

[0006] The closed latch 22 has a hook 2
If it is locked to 0, the knitting needle 12 is opened by the old loop as shown by the solid line 12 in FIG. 4 while the knitting needle 12 is being moved from the start position C to the most advanced position A. On the other hand, if the old loop does not exist, the closed latch 22 contacts the latch opener 16 at the position B as the knitting needle 12 advances, and is finally opened by the latch open 16.

The opened latch 22 is disengaged from the operating area of the latch opener 16 while the needle 12 is retracted from the most advanced position A to the standby position B. During this time, the height position of the knitting yarn 18 extending from the yarn feeder 26 moves downward with the movement of the yarn feeder 26, and the knitting needle 1 standing by at the standby position B
The second latch 22 enters the rotation area α. The height position of the knitting yarn 18 in the rotation plane of the latch 22 is indicated by reference numeral 28 in FIG.
Indicated by

The knitting needle 12 is further retracted from the standby position B, and locks the knitting yarn 18 to the hook 20 at the yarn locking position K on the way.

However, in the prior art, after the knitting needle 12 is advanced to the most advanced position A, it is retracted to the standby position B for standby, and then from the standby position B to the stitch forming position D via the thread locking position K. The knitting needle 12 is moved to the most advanced position A
When the latch 22 is retracted to the standby position B from above, the latch 22 becomes free due to being out of the working area of the latch opener 16, and is closed by the vibration at that time. as a result,
At the yarn locking position K, the knitting yarn 18 cannot be locked to the hook 20 and often becomes overlooked.

[0010]

Therefore, it is important to prevent the latch from closing before the knitting needle locks the knitting yarn in order to prevent omission.

[0011]

The knit loop forming method according to the present invention comprises the steps of: moving a knitting needle from a start position to a tack position, temporarily stopping the knitting needle, and then further moving the knitting needle to a clearing position; Retreat.

The knitting needle is retracted from the clearing position to the stitch forming position. At this time, the knitting needle can be retracted without stopping from the clearing position to at least the thread locking position.

The timing at which the knitting needle is advanced from the tack position to the clearing position is at an appropriate timing after the knitting yarn from the yarn feeder enters the rotation area of the latch, and preferably, the old loop is latched by raising the knitting needle. The timing can be set such that the knitting yarn from the yarn feeder is positioned within the rotation region of the latch until the clearance reaches the clearing position.

As described above, when the knitting needle is first advanced to the tack position and made to stand by at that position, then moved to the clearing position, and then retracted, the closing of the opened latch means that the knitting needle is in the tack position. During the waiting period, the knitting needle is stopped by the old loop abutting the latch, and the knitting needle is further advanced to the clearing position, and thereafter, the knitting needle existing in the latch rotation area until the needle is retracted to the thread locking position. Blocked by thread. As a result, there is no fear that the latch will close before the knitting needle locks the knitting yarn, and occurrence of omission is prevented.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, C, T, F, K, and D indicate a start position, a tack position, a clearing position, a thread locking position, and a stitch forming position, respectively. FIG. 1, like FIG. 5, also shows a temporal movement trajectory of the tip of the knitting needle 12 when focusing on one knitting needle 12. The yarn feeder 26 is also shown corresponding to the position at the time when the knitting needle 12 has reached the start position C from the most advanced position A. The clearing position F is below the clearing position A shown in FIG. 2 and 3,
4 are denoted by the same reference numerals, the old loop is denoted by reference numeral 30, and the center of rotation of the latch 22 is denoted by reference numeral 32.

The knitting needles 12 forming the knit loop are advanced from the start position C to the tack position T and wait at that position. The height position of the knitting yarn 18 extending from the yarn feeder 26 gradually moves downward with the movement of the yarn feeder 26 in the direction indicated by the arrow in FIG. 1 and enters the rotation area α of the latch 22. This state is shown in FIG.

When the old loop 30 exists in the knitting needle 12,
The latch 22 is opened by the old loop 30 when the knitting needle 12 is advanced to the tack position T. At the tack position T, since the old loop 30 is in contact with the latch 22, the opened latch 22 is maintained in the open state by the old loop 30, and is prevented from closing.

The height position of the knitting yarn 18 extending from the yarn feeder 26 gradually moves downward with the movement of the yarn feeder 26, and the rotation area of the latch 22 while the knitting needle 12 is waiting at the tack position T. Enter into or near α.

When the height position of the knitting yarn 18 enters the rotation area α of the latch 22, the knitting needle 12 further advances to the clearing position F where the old loop 30 releases the latch 22, as shown in FIG. Is done.

While the needle 12 is moved to the clearing position F, the opened latch 22
2 is released from the old loop 30. However, even if the latch 22 attempts to close due to a reaction or vibration when the old loop 30 comes off the latch 22,
Since the knitting yarn 18 is already present in the rotation area α of the latch 22, the opened latch 22 does not close.

The knitting needle without the old loop 30 moves forward and backward as shown in FIG. Thereby, the latch 22 of the knitting needle is opened by the latch opener 16 while the knitting needle 12 is advanced to the most advanced position A.

Next, the knitting needle 12 retreats from the clearing position F to the stitch forming position D without stopping halfway through the tack position T, the latch opener tip position X, the thread locking position K, and the start position C. Is done.

The opened latch 22 is disengaged from the operating area of the latch opener 16 while the needle 12 is retracted from the clearing position F to the tack position T. While the knitting needle 12 is retracted from the clearing position F to the yarn locking position K, the knitting yarn 18 is present in the rotation area α of the latch 22. 22 is prevented from closing. For this reason,
The knitting yarn 18 is locked by the hook 20 at the yarn locking position K, and is retracted to the stitch forming position D together with the knitting needle 12.
As a result, a knit loop is formed.

The knitting needle 12 is temporarily stopped at the stitch forming position D, and then advanced to the start position C.

As described above, the knitting needle 12 is moved to the tack position T.
When the needle is moved to the clearing position F and then the knitting needle is retracted from the clearing position to the stitch forming position, closing the opened latch 22 causes the knitting needle 1 to close.
2 is blocked by the abutting old loop 30 while waiting at the tack position T, and until the knitting needle 12 further advances to the clearing position F and then retracts to the thread locking position K. Knitting yarn 1 existing in latch rotation area α
Blocked by 8 As a result, there is no fear that the latch 22 is closed before the yarn 18 is locked to the knitting needle 12, and occurrence of eye drop is prevented.

When the knitting needle 12 is advanced again from the tack position T to the clearing position F, the amount of movement of the knitting needle becomes smaller than in the conventional case. This is because the clearing position F in the present invention is a position where the old loop 30 is disengaged from the latch 22 and a position where the knitting yarn 18 exists in the rotation area α of the latch 22. .

The present invention relates to a so-called carriageless flat knitting machine in which a knitting needle is advanced and retracted by an actuator such as a linear motor provided for each knitting needle, and a so-called carriage type flat knitting machine in which a knitting needle is advanced and retracted by a cam. Can also be applied.

The present invention is not limited to the above embodiment. For example, instead of retracting the knitting needle from the clearing position to the stitch forming position without stopping, the knitting needle is retracted without stopping from the clearing position to at least the thread locking position, and then stopped halfway. Is also good.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a needle movement pattern for explaining the present invention.

FIG. 2 is a view showing the vicinity of a knitting needle in a state where the knitting needle is advanced to a tack position.

FIG. 3 is a view showing the vicinity of the knitting needle in a state where the knitting needle is advanced to a clearing position.

FIG. 4 is a view showing the vicinity of a knitting needle for explaining the method of the present invention.

FIG. 5 is a diagram showing an example of a needle movement pattern for explaining the method of the present invention.

[Explanation of symbols]

 12 Knitting Needle 14 Needle Bed 16 Latch Opener 18 Knitting Yarn 20 Hook 22 Latch 26 Feeder 30 Old Loop

Claims (2)

[Claims] 1. A method of forming a knit loop in a knitting machine, comprising: advancing a knitting needle from a start position to a tack position and pausing at that position, then further advancing the knitting needle to a clearing position and thereafter retracting the knitting needle. . 2. The forming method according to claim 1, wherein the knitting needle is retracted from the clearing position to at least the thread locking position without stopping.