JPH0210259B2 - - Google Patents

Description

Detailed Description of the Invention Technical Field The present invention provides an overlocking method for overcasting stitches intended for reduction or overlocking among the stitches knitted by knitting needles arranged on a needle bed. This is related to the improvement of.

Prior Art Conventionally, as a technique for this type of overlocking method, for example, as shown in Japanese Patent Publication No. 47-28421,
A method in which the stitch to be overlocked is suspended from a knitting needle and then an overlock thread is used to form an overlock stitch with the overlock thread and the stitches are successively overlocked or 8780
As shown in the above publication, there is a method in which a knitting yarn having a stitch to be overlocked is continuously used to form an overlock stitch with this knitting yarn and the stitch is prevented from being overlocked.

By the way, according to these methods, overlock stitches are formed while supplying overlock yarn or knitting yarn, so the tension acting on the overlock yarn or knitting yarn and the time when forming overlock stitches are Changes in various conditions such as the movement of knitting needles can cause overlock stitches to become larger or smaller, and if they become larger, the serpentine edges of the knitted fabric will open up and become tight. It becomes a work,
On the other hand, if the fabric is made smaller, the rough edges of the knitted fabric will shrink, resulting in a piece with an untidy edge.

In addition, the applicant attempted to crochet by using normally knitted stitches without using darning yarn or knitting yarn as described above, but in this case, even if the stitches were highly elastic, Even though the stitches are made of yarn, the stitches do not have the necessary and sufficient amount of yarn to form an overlock stitch, so the knitted fabric has the disadvantage that the ragged edge of the fabric shrinks, resulting in a piece with an untidy edge. .

Purpose However, in order to eliminate all of the above-mentioned drawbacks, the present invention particularly knits a stitch intended for reducing stitches or overlocking stitches slightly larger than other stitches in advance, and then using that stitch. This allows the stitches to overlap each other, making it possible to always align the stitches to the desired size very easily and reliably, thereby creating a neat knitted hem that does not stretch or shrink. It makes the work easily available.

Embodiment An embodiment embodying the present invention will be described in detail below with reference to the accompanying drawings. The hand knitting machine used in this example is one in which the carriage moves step by step at the same pitch as the knitting needles arranged in rows on the needle bed, and while the carriage is stopped, stitches are sequentially formed on each knitting needle. It is.

Therefore, the configuration of the hand knitting machine used in this embodiment will be explained below. As shown in FIG. 16, a needle bed 1 extending in the longitudinal direction is formed with a large number of needle grooves 2 and comb teeth 3 connected to the side walls of each needle groove 2, which are alternately arranged at equal pitches. A knitting needle (hereinafter referred to as main needle) 4 is housed in the knitting needle 4 so as to be movable back and forth. A carriage 5 as shown in FIGS. 1 to 4 is mounted on the needle bed 1 so as to be slidable in the direction in which the knitting needles are arranged, and a carriage 5 as shown in FIGS. A pinion 7 is rotatably arranged. The pinion 7 is meshed with a rack (not shown) having teeth arranged at the same pitch as the main needle 4 on the needle bed 1, and the ball disposed on the carriage 5 is compressed. A spring (none of which is shown) engages the pinion 7 to prevent the carriage 5 from moving at a desired position on the needle bed 1.

Main needle operation mechanism As shown in Figures 1 and 2, the base plate 6 of the carriage 5
A support shaft 11 extending in the front-rear direction is provided on the left side of the top, and a main needle actuating arm 12 is supported at the base end of the support shaft 11 so as to be movable back and forth.
A compression coil spring (not shown) wound around the support shaft 11 urges the support shaft 11 to move rearward. Further, the rear movement of the main needle actuating arm 2 is regulated by a regulating member 14 on the base plate 6.
This main needle actuating arm 12 extends to the center of the lower surface of the base plate 6 through the elongated hole 15 of the base plate 6, and has a grip body 16 at its tip which has a notch 16a for gripping the butt of the main needle 4. is fixed. An operating pin 17 is inserted through the regulating member 14 so as to be movable back and forth, and is biased forward by a compression spring 18 having a stronger spring force than the compression coil spring.
Based on the spring force, the front end of the operating pin 17 is engaged with a portion of the main needle operating arm 12, whereby the main needle operating arm 12 is always urged to move forward.

As shown in FIG. 2, at the center of the lower surface of the base plate 6 of the carriage 5, a main needle guide member 19 is connected to a pair of support plates 20.
A first guide groove 21 is formed at the rear end of the needle so as to be movable back and forth, and expands on both left and right sides to allow the butt of the main needle 4 to enter therein. Further, in the center of the main needle guide member 19, a second guide groove 2 extending back and forth and communicating with the first guide groove 21 is provided.
2 is formed. Further, a stitch adjustment dial 24 having a spiral groove 24a is rotatably supported at the front part of the base plate 6, and a connecting arm (not shown) connected to the main needle guide member 19 is connected to the spiral groove 24a.
contact pin 23 is engaged. Based on the rotation of the stitch adjustment dial 24, the main needle guide member 19 is moved back and forth via the connecting arm.

A dial drive motor 25 is provided on the upper surface of the base plate 6 on the right side of the stitch adjustment dial 24, and when a predetermined electric signal is input to the motor 25 in order to change the size of the stitches, the motor 25 is activated. The driving force is transmitted to the driven gear 24b on the outer periphery of the stitch adjustment dial 24 via the drive gear 26 on the motor shaft 25a and the intermediate gear 27 on the lower surface of the base plate 6, and the stitch adjustment dial 24 is rotated. There is.

A regulation lever 28 is rotatably supported on the main needle guide member 19, and is biased to rotate clockwise in FIG. 2 by a compression spring 29. The regulation lever 28 is used to determine the size of knitted stitches.
This restricts the gripping body 16 from returning to a predetermined position. One end of the regulation lever 28 is always engaged with the front end of the gripping body 16, and in this state, the center portion of the first guide groove 21 and the notch 16a of the gripping body 16 are aligned. .

Therefore, as the carriage 5 slides, the butt of the main needle 4 on the needle bed 1 moves from the first guide groove 21 to the gripping body 16.
2, and the regulating lever 28 is rotated counterclockwise in FIG.
6, the butt of the main needle 4 is moved back and forth along the second guide groove 22 integrally with the main needle operating arm 12 and the gripping body 16.

Darning Needle Actuation Mechanism As shown in FIGS. 1 to 4 and FIG. A support shaft 31 adjacent to the support shaft 11 is installed. A needle support frame 32 is inserted into and supported by the support shaft 31 on the extending portion 6a of the base plate 6 so as to be movable back and forth. Further, this needle support frame 32 is urged to move forward by a compression spring 33 wound around the support shaft 31. A bearing body 34 is provided on the lower surface of the extending portion 6a of the bed plate 6 at the lower rear of the needle support frame 32, and a needle support body 35 is rotatably supported on the bearing body 34 at its central shaft portion. has been done. Needle support 3
An engagement pin 35a and a spring hook pin 35b are provided protruding from the left end portion of 5. Further, a cylindrical support portion 35c is formed at the right end portion of the needle support body 35, into which a single knitting needle (hereinafter referred to as a darning needle) 36 is rotatably inserted and supported. The latch 36b of the darning needle 36 is always held in an upright position by a spring (not shown) built into the needle 36. Further, the stitches knitted with the main needle 4 can be knitted with the reverse side of the stitches, using the overlocking needles 36.

As shown in FIG. 2, the proximal end of the darning needle 36 has a substantially U-shaped mounting piece 38 in a pair of front and rear grooves.
are fitted and attached by screws 37, and the front side of this attachment piece 38 is fitted between a regulating piece 39 protruding from the front inner surface and the right inner surface of the needle support frame 32. As the needle support frame 32 moves back and forth, the darning needle 36 is moved back and forth integrally with the needle support frame 32 via the attachment piece 38 and the regulating piece 39. Mounting piece 3
The front side of
9 and the front inner surface, and by moving back and forth integrally, the needle can move back and forth within the needle groove 2.

As shown in FIG.
An actuating body 40 is attached to the darning needle 36 on the front surface of the darning needle 5c.
is inserted through the darning needle 36 so as to be able to rotate integrally therewith, and a tension spring 41 is hung between the spring hook 40a and the spring hook pin 35b of the needle support 35. The spring force of the spring 41 biases the operating body 40 and the darning needle 36 to rotate counterclockwise in FIG. 3. Further, an engaging pin 40b is provided protrudingly on the operating body 40, and a locking piece 34a is provided protrudingly on the bearing body 34.
Due to the spring force of the tension spring 41, the engagement pin 40b
is engaged with the locking piece 34a, so that the operating body 40 and the darning needle 36 are held in the neutral position shown in FIG.

As shown in FIGS. 1, 3, and 7, the bearing body 30
An operating arm 42 is rotatably supported by a pin 43a protruding from a central shaft portion 43, and a first arm portion 44 extending upward is provided at the rear end of the shaft portion 43.
Further, second arm portions 45 are formed at the front end and extend downward and from the lower end to the left and right, respectively.
An engagement groove 46 is formed in the second arm portion 45 and includes a first portion 46a forming an arc around the pin 43a and a second portion 46b other than the first portion 46a. 35 engagement pins 35
a is engaged. Further, the second arm portion 45 is configured such that it can engage with the engagement pin 40b of the actuating body 40.
An engagement surface 47 is formed on the surface.

When the actuating arm 42 is rotated counterclockwise from the neutral position shown in FIG. The engaging surface 47 of the arm 42 engages with the engaging pin 40b of the actuating body 40, and the actuating body 40 and the darning needle 36 are rotated clockwise together. Based on this rotation, the darning needle 3
The hook 36a of the main needle 4 can be connected to the hook 4b of the main needle 4. Further, the actuating arm 42 is
When the needle support 35 is rotated clockwise from the neutral position shown in the figure, the engagement pin 35a of the needle support 35 is moved into the engagement groove 46.
the second portion 46b of the needle support 35;
is rotated counterclockwise against the spring force of the tension spring 41. And, as is clear from Figure 3,
The support portion 35c of the needle support 35 and the operating body 40 are raised, and the darning needle 36 is raised integrally with the operating body 40. Further, when the engaging pin 40b of the actuating body 40 is separated from the locking piece 34a of the bearing body 34 as the needle support body 35 rotates counterclockwise, the actuating body based on the spring force of the tension spring 41 40 is allowed to rotate counterclockwise, and the engaging pin 40b is engaged with the locking piece 34a again.

Thread port/latch engagement plate operating mechanism As shown in FIGS. 1, 3, and 7, a thread port operating arm 48 is supported on the front upper surface of the base plate 6 so as to be movable left and right, and is positioned adjacent to the darning needle 36. In this manner, a thread port 49 consisting of a support plate portion 49a and a cylindrical portion 49b is inserted into the center of the thread port actuating arm 48 at its cylindrical portion 49b. A rack 50 is integrally formed on the upper surface of the right end of the thread operating arm 48, and a thread thread drive motor 52 that can rotate in forward and reverse directions is mounted on a support frame 51 provided on the base plate 6 so as to face the rack 50. Supported. Motor shaft 52 of this motor 52
A small-diameter pinion 53 that meshes with the rack 50 is mounted on the pinion a. When the thread drive motor 52 is rotated in the forward or reverse direction based on a predetermined electric signal, the thread 49 on the thread operating arm 48 is moved to the darning needle 36 through the engagement between the pinion 53 and the rack 50.
is moved from the right side to the left side or from the left side to the right side, so that the knitting yarn Y can be supplied to the darning needle 36 or one main needle 4 facing the darning needle 36.

A latch engagement plate 54 is provided on the cylindrical portion 49b of the thread opening 49.
is inserted in the upper and lower bent portions 54a and 54b so as to be vertically movable, and the lower bent portion 54b is inserted into the darning needle 3.
6 and the latches 36b, 4c of the main needle 4. Further, as shown in FIGS. 4 and 16, a thread 49 is placed on the lower bent portion 54b.
A pair of permanent magnets 55 are attached to both sides of the cylindrical portion 49b, and a permanent magnet 56 is provided below the base plate 6. The latches 36b and 4c can be held open by attracting them. As the thread operating arm 48 moves laterally, the cylindrical portion 49b of the thread 49 is disposed to the left or right of the darning needle 36, and one of the permanent magnets 55 is disposed above the darning needle 36. It's becoming like that.

As shown in FIGS. 1, 3, 4, and 7, an actuating plate 57 is provided on the base plate 6 at the rear of the thread operating arm 48.
is supported so as to be movable left and right, and a pair of elongated holes 58 in a step-like shape are formed in the operating plate 57 for vertically moving the latch engagement plate 54. Further, a pair of support plates 59 (only one of which is shown) having a guide pin 59a at the upper end is provided in front of the actuating plate 57, and the guide pin 59a is engaged with the elongated hole 58. The lower center of the actuating plate 57 engages with a guide piece 54c of the latch engaging plate 54 shown in FIG. , a slit (not shown) is formed to allow horizontal movement.

Carriage feed mechanism As shown in Figures 1, 4 and 8, the pinion 7
A pair of ratchet wheels 60, 6 are coaxially connected to the
1 is supported so as to be able to rotate integrally with the pinion 7, and teeth facing in opposite directions are formed on the outer periphery of the pinion 7. the pinion 7 and the ratchet wheel 60;
A rotating body 62 having an equal radius portion 62a and a bifurcated portion 62b on the outer periphery is coaxially located between the rotating body 61 and the rotating body 62.
is supported by relative rotation. A feed switching plate 63 is supported on the right side of the ratchet wheels 60 and 61 at the rear of the base plate 6 so as to be movable left and right, and is hung between the spring hanging piece 63a and the protruding piece 6b on the base plate 6. It is urged to move leftward by a tension spring 65. This feed switching plate 63 includes a pair of regulating protrusions 66a and 66b for regulating the rightward movement position and the intermediate movement position, a pin 6c on the base plate 6,
A pair of elongated holes 67a, 67b and a pair of protrusions adjacent to each of the regulating protrusions 66a, 66b cooperate with 6d to regulate the leftward movement position of the feed switching plate 63 and guide the movement of the feed switching plate 63. Piece 68a,
68b are formed respectively. An operating protrusion 69 is formed on the front right end of the feed switching plate 63, and the two-pronged portion 6 of the rotating body 62 is formed on the left side.
A pin 70 that can be engaged with 2b is provided in a protruding manner.

As shown in FIGS. 1, 4, and 8, a feed plate 71 is supported at the center of the base plate 6 so as to be movable back and forth, and a pair of ratchets 72, 7 are provided at the rear of the feed plate 71.
3 is rotatably supported near its front end. A compression spring 74 is interposed between the front ends of each ratchet 72, 73, and the spring force biases the rear end of each ratchet 72, 73 inward. At the rear end of each ratchet 72, 73 is a flat portion 7 that can be engaged with the equal radius portion 62a of the rotating body 62.
2a, 73a are formed, and the right ratchet 72
A locking portion 72b that can be engaged with the upper ratchet wheel 60, and a locking portion 73 that can be engaged with the lower ratchet wheel 61 on the left ratchet 73.
b are formed respectively.

When the feed switching plate 63 is placed at the right position shown in FIG.
Based on the engagement with b, the rotating body 62 is placed in a rightward tilted position. As a result, the equal radius portion 62 of the rotating body 62
a engages with the flat part 73a of the left ratchet 73, its locking part 73b is placed outside the rotation locus of the lower ratchet wheel 61, and the equal radius part 62a engages with the flat part 73a of the right ratchet 72. flat part 7 of
2a, the locking portion 72b of the right ratchet 72 is disposed on the rotation locus of the upper ratchet wheel 60 due to the spring force of the compression spring 74. In this state, the feed plate 71 and each ratchet 7
When 2 and 73 are moved rearward as one,
The upper ratchet wheel 60 is rotated counterclockwise by the locking portion 72b of the right ratchet 72, and by the cooperation of the pinion 7, the rack, and the ball, the carriage 5 is moved leftward by one pitch of the main needle 4. will be moved only.

On the other hand, when the feed switching plate 63 is placed at the left position, the rotating body 62 is placed at the left tilted position.
As a result, the equal radius portion 62a of the rotating body 62 engages with the flat portion 72a of the right ratchet 72, and the locking portion 72b engages with the flat portion 72a of the upper ratchet wheel 60.
The equal radius portion 6 is disposed outside the rotation locus of the
2a is detached from the flat portion 73a of the left ratchet 73, and the locking portion 73b of the left ratchet 73 is placed on the rotation locus of the lower ratchet wheel 61 due to the spring force of the compression spring 74. When the feed plate 71 and the ratchets 72, 73 are integrally moved rearward in this state, the lower ratchet wheel 61 is rotated clockwise by the locking portion 73b of the left ratchet 73. The carriage 5 is moved to the right by one pitch of the main needle 4 by the cooperation of the pinion 7, the rack and the sphere.

On the other hand, when the feed switching plate 63 is placed in the intermediate position, the rotating body 62 is placed in the neutral position, and the equal radius portion 62a of the rotating body 62 is connected to each ratchet 72,
The locking portions 72b, 73b engage with the flat portions 72a, 73a of the ratchet wheels 60, 6.
It is placed outside the rotation locus of 1. When the feed plate 71 and each ratchet 72, 73 are moved rearward in this state, each ratchet wheel 60, 6
1 is not rotated and therefore the carriage 5
is not sent.

Carriage Positioning Mechanism As shown in FIGS. 2 to 4 and 8, a support plate 80 having a substantially L-shaped front face is supported at the front end of the support shaft 11 so as to be movable back and forth, and the support plate 80 is movable back and forth. An engagement plate 81 in which a plurality of slits 81a are formed at predetermined intervals and a brush-like knitted fabric presser 82 are protruded from one side edge of the support plate 80 so as to extend toward the first comb tooth 3 side. When the support plate 80 is moved toward the comb teeth 3, the slits 81a of the engagement plate 81 engage with the plurality of comb teeth 3 to prevent the carriage 5 from moving inadvertently.
is adapted to engage with the knitted fabric. 4th, 16th
As shown in the figure, a guide member 83 is attached to the support plate 80 above the knitted fabric presser 82, and the guide member 83 has a pair of comb teeth 83a defined by the comb teeth 83a. guide groove 83b
is formed. The darning needle 36 and one main needle 4 can enter into this guide groove 83b at the same time.

Stitch sorting body operating mechanism As shown in FIGS. 1 to 3 and 6 to 11, a support shaft 84 extending vertically is provided on the base plate 6 at the rear of the engagement plate 81, and the support shaft 84 is provided with support. body 8
5 is inserted and supported so as to be vertically movable. An arm 86 extending forward is integrally formed on one side of the support body 85, and a slit 86a extending left and right is formed in the front surface of the arm 86. This slit 86a has a support plate 8 whose side surface is approximately L-shaped.
7 is fitted at its lower end bent portion 87a so as to be movable left and right. A stitch separating body 88 formed by bending a wire rod is fixed at its base end to the lower front surface of the support plate 87, and its lower end is connected to the fabric presser 82, as shown in FIGS. It is designed so that it can enter between the comb teeth 3 and 83a at the top.

General cam mechanism As shown in Figures 1 and 4, the base plate 6 of the carriage 5
A drive cam body 92 consisting of an upper first cam ring 90 and a lower second cam ring 91 is rotatably supported around a support shaft 93 at the center. Drive cam body 9
A cam drive motor 94 is provided on the base plate 6 on the left side of 2.
As a result, the drive cam body 92 is rotated clockwise in FIG.

As shown in FIGS. 4 to 8, each cam ring 90, 91
A plurality of drive cams for driving each of the above-mentioned operating mechanisms are formed in the shape of a groove that communicates with each other over 360 degrees on both the upper and lower surfaces. The operating levers respectively disposed on the base plate 6 are provided with cam contact pins so as to correspond to almost all of the drive cams, and each cam contact pin is operatively connected to each of the above-mentioned operating mechanisms. In this embodiment, after each cam contact pin is selectively engaged with each drive cam by an electromagnetic device to be described later, when the drive cam body 92 is rotated once, each actuating mechanism is activated to the shape of each drive cam. The knitting machine is driven in accordance with the knitting pattern, and can selectively perform knitting operations such as facing stitches and overlock stitches.

Hereinafter, the configurations of each drive cam, operating lever, etc. will be explained in the order in which the respective operating mechanisms are explained.

Drive cam for the main needle operating mechanism As shown in Figures 4, 5 and 12, the first cam wheel 9
On the lower surface of 0 are first and second drive cams 1 for driving the main needle operating mechanism during front stitch and overlock stitch.
00, 101 are formed. The first drive cam 100 for overlock knitting is formed in a deep groove shape, and includes a wide part 100a for adjusting stitches, a pair of cam parts 100b and 100d for slipping off, a pair of cam parts 100c and 100e for knockover, and a needle advancement cam. Part 100f
and a needle retraction cam portion 100g. A second drive cam 101 located outside of the first drive cam 100 and communicating with the first drive cam 100 is formed in the shape of an equal radius and a shallow groove. As shown in FIGS. 1 and 5, on the right side of the drive cam body 92, a main needle actuating lever 103 is supported on a support shaft 102 in a U-shape at its base end so as to be rotatable and movable up and down. It is connected to the main needle actuating arm 12 via a link 104, and is urged to move downward by a compression spring (not shown).

As shown in FIGS. 5 and 13 to 15, the cam contact pin 103a of the main needle operating lever 103 is at an upper position where it engages only the first drive cam 100, and at an upper position where it engages with the first and second drive cams 100, 101. The main needle actuating lever 103 is arranged to be switched between three positions corresponding to an intermediate position where the two drive cams 100 and 101 come together and a lower position where the main needle actuating lever 103 separates from the drive cams 100 and 101. Therefore, when the cam contact pin 103a is disposed at the upper position or the intermediate position, the main needle operating lever 103 is rotated according to the cam shape of each drive cam 100, 101 as the drive cam body 92 rotates. .
With this rotation, the main needle actuating arm 12 and the grip 16 are moved back and forth via the link 104, and one main needle 4 is moved back and forth via the grip 16.

Drive cam for the darning needle operating mechanism (Part 1) As shown in Figures 4, 6 and 12, the second cam wheel 9
A third drive cam 105 for overlock knitting is formed on the upper surface of 1. This third drive cam 105 has three bellow removal cam parts 105a, 105c, 105.
e and three knockover cam parts 105b,
105d and 105f. 1st, 3rd, 6th
As shown in the figure, an operating lever 107 for the darning needle 36 is rotatably and vertically movably supported on a support shaft 106 at the front right side of the drive cam body 92 at its base end U-shaped portion. It is urged to move downward by a spring 108. This operating lever 107
is connected to the needle support frame 32 via a connecting link 109 at its tip. Also, the 13th
15, the operating lever 107 is in two positions corresponding to the upper position where the cam contact pin 107a of the operating lever 107 separates from the third drive cam 105 and the lower position where the cam contact pin 107a engages with the cam 105. It is now being switched to .

When the cam contact pin 107a is placed in the lower position, as the drive cam body 92 rotates,
The operating lever 107 is rotated according to the cam shape of the third drive cam 105, and the needle support frame 32 and the darning needle 36 are integrally moved back and forth via the connection link 109.

Drive cam for the darning needle operating mechanism (Part 2) As shown in Figures 4, 7 and 12, the first cam wheel 9
A fourth drive cam 110 for rotating and raising the darning needle 36 is formed on the upper surface of the darning needle 36. This fourth drive cam 110 is formed into a shallow groove shape, and includes a small diameter portion 110a, a medium diameter portion 110b, and a large diameter portion 110c.
It is equipped with A control lever 112 is rotatably supported at its base end on a support shaft 111 behind the drive cam body 92 . As shown in FIGS. 4 and 7, a pin 44a on the first arm portion 44 of the operating arm 42 is loosely fitted into a long hole 112a formed at the tip of the control lever 112. This control lever 1
A cam contact pin 112b that is always engaged with the fourth drive cam 110 is protruded from the center of the cam 12.

When the cam contact pin 112b engages with the middle diameter portion 110b of the fourth drive cam 110 as the first cam wheel 90 rotates, the control lever 1
12 is placed in the neutral position shown in FIG. 7, and the needle support 35 is placed in the neutral position shown in FIG. Further, the cam contact pin 112b is connected to the fourth drive cam 1.
When engaged with the large diameter portion 110c of 10, the control lever 112 is rotated clockwise in FIG.
As is clear from FIG. 3, the darning needle 36 is
is rotated clockwise. Further, the cam contact pin 112b is connected to the small diameter portion 11 of the fourth drive cam 110.
0a, the operating lever 112 is rotated counterclockwise in FIG. 7, and as is clear from FIG. The needle 36 is adapted to be raised.

Drive cam for the latch engagement plate operating mechanism As shown in Figures 4, 7 and 12, the first cam wheel 9
A fifth drive cam 113 for moving the latch engagement plate 54 up and down is formed inside the fourth drive cam 110 on the top surface of the latch plate 54 . This drive cam 11
3 includes a large diameter portion 113a and a small diameter portion 113b. As shown in FIGS. 1, 3, and 7, an engagement plate control lever 115 is rotatably supported at its base end by a support shaft 114 at the rear of the drive cam body 92. A connecting pin 11 is attached to the tip of this lever 115.
5a is provided in a protruding manner, and its connecting pin 115a is loosely fitted into the connecting hole 57a of the actuating plate 57. A cam contact pin 115b that is constantly engaged with the fifth drive cam 113 is protruded from the center of the engagement plate control lever 115.

Then, as shown in FIG. 7, the first cam wheel 90
When the cam contact pin 115b is engaged with the small diameter portion 113b of the fifth drive cam 113, the engagement plate control lever 115 is placed in the position shown in FIG. The latch engagement plate 54 is disposed at the position shown in the figure, and the latch engagement plate 54 is moved downwardly as shown in FIG. placed in position. Further, the cam contact pin 115b is connected to the large diameter portion 1 of the fifth drive cam 113.
13a, the engagement plate control lever 1
15 is rotated counterclockwise from the position shown in FIG.
etc. is placed in the upper position shown in FIG.

Drive cam for the carriage feed mechanism As shown in Figures 4, 8 and 12, the second cam wheel 9
A sixth drive cam 116 for driving the carriage feed mechanism is formed on the lower surface of the slider 1. This drive cam 116 has an equal radius portion 116a and a second cam ring 9.
A chevron portion 11 having an apex 116c near the outer circumference of 1
6b. Further, a cam contact pin 71a protruding from the front end of the feed plate 71 is always engaged with the sixth drive cam 116. As shown in FIGS. 8 and 12, at the start of knitting, the cam contact pin 71a is connected to the equal radius portion 116a.
is held in the engaged state. When the drive cam body 92 is rotated one rotation clockwise from this state, the feed plate 71 is rotated according to the cam shape of the sixth drive cam 116.
is moved back and forth, the ratchet wheels 60 and 61 are rotated in a predetermined direction by the ratchets 72 and 73, and the carriage 5 is rotated through the pinion 7 and the rack.
is moved in a predetermined direction by one pitch of the main needle 4.

As shown in Figures 3, 8 and 12, the second cam ring 9
A seventh drive cam 117 for moving the support plate 80 back and forth is formed inside the sixth drive cam 116 on the lower surface of the seventh drive cam 116 . This drive cam 1
17 includes a large diameter portion 117a, a medium diameter portion 117b, and a small diameter portion 117c. A support plate operating lever 11 is mounted on the base plate 6 below the second cam ring 91.
8 is rotatably supported at its center and connected to the support plate 80 via a link 119 at its extending arm 118a. This support plate operating lever 1
18 includes an operating portion 118b that engages with the projection 28a of the regulation lever 28 to rotate the lever 28 in the counterclockwise direction in FIG. 2, and a cam contact that constantly engages with the seventh drive cam 117. A pin 118c is provided. In addition, this support plate operating lever 1
18 is biased to rotate clockwise in FIG. 8 by a leaf spring 119a.

Switching mechanism As shown in FIG. 8, the support metal fitting 1 provided on the upper surface of the base plate 6 below the second cam ring 91
An intermediate lever 121 is rotatably supported on one end of the intermediate lever 121, and a switching member 122 is supported on the base plate 6 so as to be movable in the left-right direction.
A cam contact pin 121a that constantly engages with the sixth drive cam 116 is provided at the center of the intermediate lever 121, and the switching member 121a is provided at the other end of the intermediate lever 121.
The connecting portion 122a is connected to the connecting portion 122a. Then, as the second cam wheel 91 rotates, the sixth drive cam 1
The intermediate lever 121 is rotated according to the cam shape of 16, and the switching member 122 is moved left and right within a certain range. Flat portion 122b of the switching member 122
Two substantially oval-shaped bosses 123 are protruded from the top, and the support shaft 10 shown in FIG.
A long hole 123a for loosely fitting the screw 2, 106 is formed. Furthermore, an engagement piece 124 that can be engaged with the operating protrusion 69 of the feed switching plate 63 is formed on the rear edge of the flat plate portion 122b.

Then, as shown in FIG. 12, the second cam ring 9
1 is rotated approximately 350 degrees and the cam contact pin 121a of the intermediate lever 121 is engaged with the apex 116c of the sixth drive cam 116, the intermediate lever 1
21, the switching member 122 is moved to the rightmost position. At this time, due to the action of the cam surface on each boss 123 of the switching member 122, each operating lever 1
03 and 107 are moved upward against the spring force of the compression spring 108 and the like. As a result, each operating lever 103,
107 cam contact pins 103a, 107a are arranged at each of said upper positions. Continuing second cam wheel 9
1, when the switching member 122 is moved to the left according to the cam shape of the sixth drive cam 116, the lower movement of each operating lever 103, 107 based on the spring force of the compression spring 108, etc. It's becoming acceptable.

Further, when the switching member 122 is moved to the rightmost position, the feed switching plate 6
3 is moved to the rightmost position, and the switching member 122
When the feed switching plate 63 is moved to the left, the spring force of the tension spring 65 allows the feed switching plate 63 to move to the left.

Drive cam for the stitch sorting body operating mechanism (Part 1) As shown in Figures 4, 7, and 12, the first cam wheel 9
0, an eighth drive cam 125 is formed inside the fifth drive cam 113 for moving the stitch sorting body 88 left and right. This drive cam 125
has a large diameter portion 125a and a small diameter portion 125b. As shown in FIGS. 1, 3, 7, and 9, a stitch sorting body control lever 127 is rotatably supported at its base end on a support shaft 126 behind the drive cam body 92. A pair of elongated holes 127a extending vertically are formed in the bent end of the lever 127, and a pair of connecting pins 87b protruding from the front surface of the support plate 87 are inserted into each elongated hole 127a. . A cam contact pin 127b, which is always engaged with the eighth drive cam 125, is protruded from the center of the stitch sorting body control lever 127.

Then, as shown in FIG. 7, the first cam wheel 90
When the cam contact pin 127b is engaged with the large diameter portion 125a of the eighth drive cam 125, the stitch sorting body control lever 127 is placed in the position shown in FIG. 7, and as shown in FIGS. As is clear, the tip of the stitch sorting body 88 on the support plate 87 is arranged to the left of the darning needle 36. Further, the cam contact pin 127b is connected to the small diameter portion 125 of the eighth drive cam 125.
When engaged with b, the stitch sorting body control lever 1
27 is rotated counterclockwise from the position shown in FIG. 7, and as is clear from FIGS. 1 and 2 and FIGS. It is moved and placed on the movement path of the darning needle 36.

Drive cam for the stitch sorting body operating mechanism (Part 2) As shown in Figures 4, 6, and 12, the second cam wheel 9
A ninth drive cam 128 for vertically moving the stitch sorting body 88 is formed on the outer peripheral edge of the second cam ring 91 on both the upper and lower surfaces of the second cam ring 91 . This drive cam 128 includes a high cam portion 128a, a low cam portion 128b, and both cam portions 1 on the upper surface of the second cam ring 91.
28a, 128b, and a high cam part 128d, a low cam part 128e, and a slope part 128f on the lower surface of the second cam ring 91 corresponding to each cam part 128a, 128b and slope part 128c. is formed. Further, as shown in FIG. 4, the thickness of the second cam ring 91 at the portion where the ninth drive cam 128 is formed is set constant. As shown in FIGS. 10 and 11, the support 8
A pair of rollers 129 are rotatably supported on the other side of 5 at a predetermined interval.
9 is engaged with the ninth drive cam 128.

Then, as shown in FIG. 6, the second cam ring 91
With the rotation of
9 to 11, the tip of the stitch sorting body 88 is placed above the darning needle 36 via the support body 85 and the support plate 87. Further, each roller 129 is connected to the ninth drive cam 1.
When engaged with the low cams 128b and 128e on the upper surface of 28, the support body 85 is moved down along the support shaft 84 via both rollers 129, and the connecting pin on the support plate 87 is moved via the arm 86. 87b is the long hole 12 of the stitch sorting body control lever 127
7a along with the roller 129, as shown in FIGS. 9 and 16, 9 to 13,
The tip of the stitch sorting body 88 is arranged below the movement path of the darning needle 36.

Electromagnetic Device As shown in FIGS. 1 and 3, the bracket 64 disposed on the upper surface of the right end of the base plate 6 has three electromagnets S1 facing the U-shaped base end of each of the operating levers 103, 107. A pair of electromagnets S4 and S5 facing each other are attached to S3 and the feed switching plate 93.
Armatures A1 to A3 are supported by the bracket 64 so as to be movable left and right in correspondence with the electromagnets S1 to S3, and are urged to move leftward by compression springs 131. When the electromagnet S1 is energized, the attracting portion of the armature A1 is attracted to the electromagnet S1, and the armature A1 is placed in a non-engaged position where it is separated from the U-shaped portion at the base end of the operating lever 107, and the operating lever 107 is moved to the lower position. It is now possible to place it in In addition, when the electromagnet S1 is de-energized, the compression spring 1
Based on the spring force of 31, the armature A1 is placed in an engagement position where it can engage with the U-shaped proximal end of the actuating lever 107, and the armature A1 allows the actuating lever 107 to be placed in the upper position. There is.

On the other hand, when both the electromagnets S2 and S3 are excited, the attraction portions of the armatures A2 and A3 are attracted to the electromagnets S2 and S3, and the armature A
2, A3 is disposed in a non-engaging position away from the proximal U-shaped portion of the main needle actuating lever 103, so that the main needle actuating lever 103 can be placed in a lower position. Further, when both the electromagnets S2 and S3 are not excited, the armatures A2 and A3 are placed in an engagement position where they can engage with the U-shaped proximal end of the main needle operating lever 103 based on the spring force of the compression spring 131. The main needle actuating lever 103 can be placed in an upper position by one armature A2. Further, when one of the electromagnets S2 and S3 is energized and the other electromagnet S3 is no longer energized, only the armature A3 corresponding to the other electromagnet S3 is placed in the engagement position, and the armature Main needle operating lever 1 is activated by A3.
03 can be placed in an intermediate position.

Further, as shown in FIGS. 1, 3, and 8, when the switching member 122 moves to the right, the leaf spring 132 attached to the switching member 122 is engaged with the hanging piece of each armature A1 to A3, Each operating lever 103, 107 is operated by the action of the cam surface of each boss 123.
is placed at the upper limit position, the compression spring 131
The armatures A1 to A3 are once aligned in the disengaged position against the spring force. In this state, the excitation state of each of the electromagnets S1 to S3 is determined depending on the knitting such as front stitch, overlock stitch, etc.

As shown in FIGS. 1 and 8, the electromagnets S4 and S
Corresponding to 5, armatures A4 and A5 which can engage with the regulating protrusions 66a and 66b of the feed switching plate 63 are inserted and supported in a vertically movable manner, and are linked to each armature A4 and A5, A pair of guide members 133 that can be engaged with the projecting pieces 68a and 68b are inserted and supported. In addition, each armature A4, A5 is connected to each guide member 133.
In this state, each armature A4, A5 is urged to move downward by a compression spring (not shown). A detailed explanation of this linked structure will be omitted, but if necessary, please refer to the specification of Japanese Patent Application No. 56-210669 filed by the same applicant as this application.

When each electromagnet S4, S5 is excited, each armature A4, A5 is activated by each electromagnet S4, S5.
5, the armatures A4 and A5 are placed in an upper disengaged position away from each of the regulating projections 66a and 66b, and in this state, as is clear from FIG. 8, the feed switching plate 63 is moved to the left. It can be placed in a moving position. In addition, each electromagnet S4,
When S5 is not energized, the spring force of the compression spring causes each armature A4, A5 to be placed in a lower engagement position where it can engage with each of the regulating protrusions 66a, 66b, and in this state, as shown in FIG. As shown,
The feed switching plate 63 can be placed in a rightward movement position. Furthermore, the electromagnets S4, S5
When only one of the electromagnets S5 is excited, the armature A5 is placed in the engagement position, and the feed switching plate 63 can be placed in the intermediate movement position.

Further, when the switching member 122 is moved to the rightmost position with the armatures A4 and A5 selectively placed in the engaged position or the non-engaged position, the engaging piece 124 operates the feed switching plate 63. By engaging with the protruding piece 69, the feed switching plate 6
3 is moved to the rightmost position. Based on this movement, the armatures A4 and A5 are once aligned in the non-engaging position by the cooperation of the protrusions 68a and 68b and the guide member 133. In this state, when the electromagnets S4 and S5 are energized to move the carriage 5 rightward, for example, the armatures A4 and A5 are attracted and held at the non-engaged position. Therefore, as the switching member 122 moves to the left, the feed switching plate 63 is moved to the left position by the spring force of the tension spring 65.

Next, the first method for performing reduced stitch knitting using this hand knitting machine is shown in Figs.
A, 14a, 19a and FIGS. 1 to 7, etc., will be explained.

Now, FIG. 17 shows a state in which a normal size face stitch La is suspended from each main needle 4 up to the right end needle 4 as the carriage 5 moves to the right. In this state, the right end needle 4 and the following four main needles 4 are used to create approximately the normal stitch La in the next course.
When forming a stitch Lb that is 1.2 times the size (corresponding to approximately 1.2 times the length of the knitting yarn), first,
The dial drive motor 25 shown in FIG. 1 is driven, and the drive gear 26, intermediate gear 27 and driven gear 2
4b, the stitch adjustment dial 24 is rotated in a predetermined direction, and the regulation lever 28 is moved rearward by a predetermined amount together with the main needle guide member 19 via the contact pin 23 and the like. Furthermore, among the electromagnets S1 to S3, electromagnet S
1, the armature A2 is placed in the disengaged position, and the cam contact pin 103a of the main needle operating lever 103 is placed in the intermediate position shown in FIG. 13. Further, as shown in FIG. 1, the armature A1 is placed in the engagement position based on the de-energization of the electromagnet S1, and the actuating lever 107
cam contact pin 107a is disposed in the upper position.

Furthermore, as is clear from FIGS. 1 and 8, the armature A4,
A5 is placed in the engagement position, and the feed switching plate 63 is placed in the rightward movement position. At the start of knitting, the cam contact pin 103a of the main needle operating lever 103 is engaged with a predetermined position of the first drive cam 100, and the cam contact pin 107a of the operating lever 107 is disengaged from the third drive cam 105. do. Furthermore, at the start of knitting, as is clear from FIGS. 8, 12, and 16, the engagement plate 81 is The knitted fabric presser 82 is disposed at a position where it is engaged with the comb teeth 3 and engaged with the knitted fabric. Then, the regulating lever 28 shown in FIG. 2 is rotated counterclockwise in the same figure by the actuating portion 118b of the support plate actuating lever 118 and separated from the gripping body 16.
The right end needle 4, whose butt is introduced into the notch 16a, is allowed to move back and forth.

Then, when the drive cam body 92 is rotated once in the clockwise direction in FIG. is moved back and forth. Also,
As shown in FIG. 12 5-8, the sixth drive cam 11
By moving the feed plate 71 rearward according to the cam shape 6, the carriage 5 is moved in the direction of the arrow in FIG. 17 by one pitch of the main needles 4. Then, the butt of the main needle 4 adjacent to the right end needle 4 is introduced into the first guide groove 21 of the main needle guide member 19, and then into the notch 16a of the grip body 16.

On the other hand, as shown in FIGS. 5 and 12, according to the cam shapes of the first and second drive cams 100 and 101, the right end needle 4 is connected to the main needle operating lever 103 and the link 10.
4. The main needle is moved back and forth via the operating arm 12 and the gripper 16. That is, Figs. 12, 2 to 5 and 16
As shown in FIGS. 2 to 5, before the carriage 5 is fed, the hook 4b of the right end needle 4 is attached to the darning needle 36 by the action of one of the cam portions 100b for removing the bellows of the first drive cam 100. The old stitch on the right end needle 4 is moved to a flattening position where it protrudes forward from the comb teeth 83a, and the blanking operation of the old stitch on the right end needle 4 is performed. Then, the right end needle 4 is retracted to the knockover position by the action of one knockover cam portion 100c. Continuing, Figure 12 5
19, after the carriage 5 is fed, it is held at the knock-over position according to the cam shape of the second drive cam 101.

Furthermore, as shown in FIGS. 7, 12, and 16, the latch engagement plate 54 is operated according to the cam shape of the fifth drive cam 113. That is, FIG. 12 1,
3, 4 and 16, as shown in FIGS. 1, 3, 4, etc.
Due to the action of the small diameter portion 113b of the fifth drive cam 113, the latch engagement plate 54 is placed in the lower position, and the latch 4c of the right end needle 4 is prevented from rotating toward the hook 4b. This prevents the stitches on the right end needle 4 from falling off. Also, Figure 12 2, 5 and 1
6 As shown in FIGS. 2 and 5, the fifth drive cam 113
Due to the action of the large diameter portion 113a, the latch engagement plate 54
is placed in the upper position, allowing the latch 4c to rotate due to knockover.

Further, as shown in FIG. 12, the thread head drive motor 52 is driven in synchronization with the rotation of the drive cam body 92, and the thread head 49 can be moved left and right based on the engagement between the pinion 53 and the rack 50 shown in FIG. be done. That is, as is clear from FIG. 12 and FIG. 16, when the right end needle 4 that has been moved to the latch release position is slightly retracted, the thread head drive motor 52 is rotated in one direction and the thread head 49 is moved to the right end. The needle 4 is moved from the right side to the left side, and the knitting yarn Y is supplied to the right end needle 4. Therefore, while the drive cam body 92 rotates once,
The above operation is performed continuously, and at the end of the operation, the forward return position of the right end needle 4 is regulated by the engagement between the regulation lever 28 and the gripper 16, and the normal stitch is made as shown in FIG. A face stitch Lb approximately 1.2 times larger than La is formed on the right end needle 4.

On the other hand, when the drive cam body 92 is rotated 322 degrees during this table version, as is clear from FIGS. engaged,
The switching member 122 is moved to the right. Based on this rightward movement of the switching member 122, the armatures A1 to A3 are arranged in alignment at the non-engaging position by the leaf spring 132 shown in FIG.
Each operating lever 103, 1 is activated by the action of the upper cam surface.
07 cam contact pins 103a, 107a are all arranged at the upper position.

Further, based on the rightward movement of the switching member 122, the feed switching plate 63 is moved rightward, and the armatures A4 and A5 are arranged in alignment at the non-engaging position via each guide member 133. Thereafter, each of the electromagnets S1 to S5 is maintained in the selectively excited state described above in order to form a slightly larger surface stitch Lb with the four main needles 4 adjacent to the right end needle 4. Then, the drive cam body 92 is rotated again, and as the carriage 5 moves to the left, the front stitches Lb are formed on the five main needles 4 including the right end needle 4, as shown in FIG. 17. Ru.

Next, just before the end of the table stitching, each of the electromagnets S2 and S3 of the electromagnets S1 to S3 is energized, and the cam contact pin 103 of the main hand operating lever 103 is energized.
a is placed in the lower position shown in FIG. Further, as shown in FIG. 1, the cam contact pin 107 of the actuating lever 107 is
a is placed in the upper position. Furthermore, electromagnet S
4 and S5 are both excited, and as is clear from FIG. 8, the feed switching plate 63 is placed at the left position.

When the drive cam body 92 is rotated clockwise in FIG. 1 in this state, the main hand 4 and the darning needle 3
The carriage 5 is progressively moved to the right by one pitch of the main needles 4 each time the drive cam body 92 rotates once, without any knitting operation being applied to the main needles 6;
When the butt of the right end needle 4 is introduced into the notch 16a of the grip body 16 through the first guide groove 21 of the main needle guide member 19, that is, the right end needle 4 is inserted into the darning needle 36.
When the carriage 5 is disposed opposite to the carriage 5, the movement of the carriage 5 is stopped. After that, the right end needle 4 and the darning needle 36
A predetermined knitting operation is given to the .

That is, among the electromagnets S1 to S3, electromagnet S1
As is clear from FIG. 1, the armature A1 is placed in the disengaged position, and the cam contact pin 107a of the actuating lever 107 is placed in the lower position shown in FIG. Further, as is clear from FIG. 1, the armatures A2 and A3 are placed in the engagement position based on the de-energization of the electromagnets S2 and S3, and the cam contact pin 107 of the main needle operating lever 107
a is placed in the upper position. Furthermore, electromagnet S
4, S5 is de-energized, and the feed switching plate 63 is placed in the rightward movement position.

Then, at the start of knitting, as shown in FIGS. 5 and 6, the cam contact pins 103a and 107a of each operating lever 103 and 107
0 and the third drive cam 105 at predetermined positions. In this state, when the drive cam body 92 is rotated once in the clockwise direction in FIG.
As shown in FIGS. 2 to 5, as in the case of knitting the surface, before feeding is applied to the carriage 5, one of the cam parts 100b for slipping out of the first driving cam 100 and one cam part for knocking over Cam part 1
Due to the action of 00c, the right end needle 4 shown in FIG.
(Main hand 4 located at the top in Fig. 16 1a)
is moved back and forth between the tongue release position and the knock over position.

Continuing, Fig. 12 9-12 and Fig. 16 9-
As shown in 12, after the carriage 5 is fed, the needle 5 is moved adjacent to the right end needle 4 by the action of the other cam part 100d for removing the lug and the other cam part 100e for knocking over of the first drive cam 100. The main needle 4 is moved back and forth, and the adjacent main needles 4 are further moved back and forth by the actions of the needle advancing cam section 100f and the needle retraction cam section 100g.

On the other hand, as shown in FIG. 6, the darning needle 36 is moved back and forth three times via the needle support frame 32. That is, as shown in FIGS. 12 and 16, before and after the carriage feeding operation, the third drive cam 1
05 respective bellow removal cam parts 105a, 105
c, 105e causes the darning needle 36 to comb teeth 8.
3a and enters into the needle groove 2 of the needle bed 1, each knockover cam part 105b, 1
05d and 105f, it is returned to the front of the comb teeth 83a.

In addition, as shown in Figures 3, 7 and 12,
According to the cam shape of the fourth drive cam 110, the cam contact pin 112b, the control lever 112, the operating arm 42,
The darning needle 3 is inserted through the needle support 35 and the operating body 40.
6 is rotated and raised. That is, as shown in FIGS. 12 and 16, the control lever 112 is rotated clockwise from the position shown in FIG. 7 by the action of the large diameter portion 110c of the fourth drive cam 110, and the darning needle 36 is It is rotated clockwise in FIG. 3, and its hook 36a is coupled to the hook 4b of the main hand 4. By moving both needles 4 and 36 backward or forward in this state, the right end needle is moved as shown in FIGS. 4 and 5 in FIG. The upper stitch Lb ₁ of No. 4 is transferred onto the latch 36b of the darning needle 36. or,
After the carriage feeding operation is completed, the steps shown in FIG. 12, 11, 12, 16, 17, FIG.
As shown in 16 and 17, the stitches on the adjacent main needle 4
Lb ₂ or the stitch Lb ₂ transferred onto the darning needle 36 is transferred onto the latch 36b of the darning needle 36 or onto the adjacent main needle 4. Thereafter, by the action of the middle diameter portion 110b of the fourth drive cam 110, the control lever 112
is rotated back to the position shown in FIG. 7, the darning needle 36 is placed in the neutral position shown in FIG.
6 As shown in FIGS. 6, 13, and 18, the two needles 4 and 36 are uncoupled.

Further, as shown in FIG. 12, the fourth drive cam 1
10, the control lever 112 is rotated counterclockwise from the position shown in FIG. 7, and the darning needle 3 is rotated as shown in FIG.
6 is raised, the stitches suspended on the darning needle 36 are pulled up, and the hook 36 of the darning needle 36 is lifted up.
The stitches from a are prevented from falling off.

Furthermore, as shown in FIGS. 7 and 12, the cam contact pin 12
7b, stitch sorting body control lever 127 and support plate 8
The stitch sorting body 88 is moved from side to side via 7. That is, as shown in FIGS. 1-6 and 14-19, the lower end of the stitch sorting body 88 is disposed to the left of the darning needle 36 by the action of the large diameter portion 125a of the eighth drive cam 125. Further, as shown in FIGS. 7 to 13, the lower end of the stitch sorting body 88 is moved toward the darning needle 36 by the action of the small diameter portion 125b of the eighth drive cam 125.
located across the path of movement.

Further, as shown in FIGS. 6 and 9 to 12, according to the cam shape of the ninth drive cam 128, the roller 129,
The stitch sorting body 88 is moved up and down via the support body 85, the arm 86, and the support plate 87. That is, the first
2. As shown in FIGS. 1 to 7 and 15 to 19, the stitch sorting body 88 is disposed above the movement path of the darning needle 36 by the action of the tall cam portions 128a and 128d of the ninth drive cam 128. Also, Fig. 12 8-1
4. 16 As shown in FIGS. 8 to 14, the lower end of the stitch sorting body 88 is connected to the darning needle 36 by the action of the low cam portions 128b and 128e of the ninth drive cam 128.
The stitch sorting body 8 is arranged below the moving path of the
8 prevents entanglement between the stitches on the adjacent main needles 4 and the stitches on the darning needle 36.

It should be noted that the thread port 49 is not operated during the above-described stitch transfer, and therefore, no new yarn Y is supplied to either the darning needle 36 or the main needle 4.

To summarize the above, as shown in FIG. 16, with the darning needle 36 facing a specific main needle 4 (the rightmost needle 4 in FIG. 17), the main needle 4 is advanced to the edge removal position. Thereafter, the latch engagement plate 54 is lowered and the latch 4c of a particular main needle 4 is attracted and held in the open state by the permanent magnet 55 (FIG. 16, 3). Then, the darning needle 36 is rotated and both needles 4,
36 are combined, the latch engagement plate 54 is raised, and both needles 4 and 36 are moved back in the combined state, and a slightly larger stitch suspended on a specific main needle 4 is removed.
Lb ₁ is transferred onto latch 36b of darning needle 36 (FIG. 16-5). And the latch 4c of the main needle 4
is attracted by the permanent magnet 56 and held in an upright position.

Subsequently, with the large stitch Lb ₁ suspended on the darning needle 36, the carriage 5 is slid in the direction of the arrow in FIG. 16 8a and FIG. is arranged opposite to an adjacent main needle 4 adjacent to a specific main needle 4. A stitch sorting body 88 is disposed below the darning needle 36 at a position across the moving path thereof, that is, between the large stitches Lb ₁ and Lb ₂ suspended from both the needles 4 and 36 .
In this state, after the adjacent main needle 4 is advanced to the flattening position, the latch engagement plate 54 is lowered and the latch 4c of the adjacent main needle 4 is attracted and held in the open state by the permanent magnet 55 (FIG. 16, 10). . Also, at this time,
The stitch sorting body 88 is the stitch Lb on both needles 4 and 36.
Since the two stitches Lb 1 and Lb 2 are interposed in between, the two stitches Lb ₁ and Lb ₂ are not intertwined with each other.

Then, after the darning needle 36 is rotated again and both needles 4 and 36 are combined, the latch engagement plate 54 is raised and both needles 4 and 36 are moved back in the combined state and suspended from the adjacent main needle 4. slightly larger stitches
Lb ₂ is transferred onto latch 36b of darning needle 36. Furthermore, the stitch Lb ₁ that was previously transferred onto the latch 36b is suspended on the needle stem of the darning needle 36 (FIG. 16, 13). After the combination of both needles 4 and 36 is released, the darning needle 36 is moved to the knockover position, and a beautiful darning stitch is formed by the slightly larger stitch Lb ₁ transferred from the specific main needle 4. . Then, the darning needle 36 is raised,
The stitch Lb ₂ on the hook 36a is prevented from falling off. Further, the stitch sorting body 88 is returned to its original position to the left and above the darning needle 36 (first
6 Figures 14, 14a).

Subsequently, after the darning needle 36 is moved to the burr removal position, the darning needle 36 is rotated again to connect both needles 4, 36, and in this state, both needles 4, 36 are advanced (Fig. 16, 17). ). Therefore, the slightly larger stitch Lb ₂ is transferred onto the latch 4c of the adjacent main needle 4. Thereafter, the adjacent main needle 4 is moved back, and the stitch Lb ₂ is suspended from the hook 4b of the main needle 4 (FIGS. 19 and 19a).

Thereafter, when the drive cam body 92 is rotated once again and the series of operations described above is performed again, a slightly larger stitch Lb ₂ on the adjacent main needle 4 adjacent to the specific main needle 4
An overlock stitch is formed by this. in this way,
By sequentially repeating the above operation for the adjacent main needles 4, overlocking for five stitches is performed as shown in FIG. 17. Next, in FIG. 17 6, the carriage 5 is moved to the left by one row of knitting needles without applying any knitting action to the sixth main needle 4 from the right, and then the main needles 4 from the 7th to 10th If a normal-sized front stitch La is formed with the needle 4, it is possible to complete five stitches of reduced stitches, as shown in FIG. You can easily create beautiful pieces that require no effort.

Next, the second method of reducing stitches is shown in Figure 17 1~
5 and 18, FIGS. 1 and 2, in this second method, as in the first method, six main needles from the right including the right end needle 4 in FIGS. 4 and the darning needle 36
A reduction of the number of marks is performed. Thereafter, unlike the first method, as shown in FIGS. 1 and 2, if the 6th to 10th main needles 4 from the right are used to form a normal size face stitch La, the 18th The knitted fabric shown in FIG. 2 is formed, and a work with beautiful knitted edges can be obtained as in the first method.

Next, the third method of reducing stitches is shown in Figure 17 1~
3 and 19, FIGS. 1 to 5, in this third method, FIGS.
9 As shown in Figure 1, a slightly larger stitch Lb is formed by the five main needles 4 from the right in each figure,
Subsequently, a stitch La of normal size is formed by the sixth main needle 4 from the right. Thereafter, as shown in FIGS. 2 and 3, the six main needles 4 from the right cooperate with the darning needles 36 to perform five reduced stitches. Then, in FIG. 19, the main needle 4, which is the sixth from the right, is not knitted and the carriage 5 is
After empty movement, as shown in Fig. 19 4 and 5, if the 7th to 10th main needles 4 form a normal size table stitch La, the knitting shown in Fig. 19 5 is obtained. A base is formed, and a work with a beautiful knitted edge can be obtained in the same way as in each of the above methods.

Although each example of reducing stitches has been described above, it goes without saying that the overlocking method of the present invention can also be applied to the case of closing the final course of a knitted fabric. In this case, all the stitches of the final course may be knitted in advance in a slightly larger size, and the stitches may be sequentially knitted in the above-described manner starting from the stitches at one end of the stitches.

Effects As detailed above, the present invention differs from conventional methods in that it does not require forming overlock stitches while supplying overlock yarn or knitting yarn, and in particular, the stitches intended for reduction stitches or overlock prevention can be formed in advance. After knitting the stitches to be slightly larger than the stitches, the stitches are used to overlock each other, so the size of the overlock stitches can be extremely easily and reliably adjusted to the desired size. This has an excellent effect in that it is possible to obtain a work with a beautiful knitted edge without stretching or shrinking the knitted edge.

[Brief explanation of drawings]

Fig. 1 is a plan view of the carriage, Fig. 2 is a bottom view of the carriage, Fig. 3 is a front view of the carriage, Fig. 4 is a side sectional view of the carriage, and Fig. 5 shows the first and second drive cams and the main drive cam. FIG. 6 is a partial plan view showing the third and ninth drive cams, the darning needle actuation mechanism and the stitch sorting body actuation mechanism, and FIG. 7 is the fourth, fifth and eighth drive cams. A partial plan view showing the cam, the latch engagement plate operating mechanism, the stitch sorting body operating mechanism, etc., FIG. 8 is a partial plan view showing the sixth and seventh drive cams and the carriage feeding mechanism, etc., and FIG. 9 shows the stitch sorting body operation. A partial front view of the mechanism, FIG. 10 is also a partial side view,
Figure 11 is a partial sectional view, and Figure 12 is a partial cross-sectional view.
Cam diagrams of the ninth drive cam, etc.; Figures 13 to 15 are explanatory diagrams showing the state of engagement of each cam contact pin with each drive cam during front stitching, overlocking stitching, and empty carriage movement; Fig. 16; 1-19, 1a, 8a,
14a and 19a are diagrams illustrating the operation of the hand knitting machine during overlock knitting, FIGS. 17 1 to 7 are diagrams illustrating the knitting progress by the first darning method, and FIGS. 18 1 and 2 are diagrams explaining the knitting process by the second darning method. Formation progress explanatory diagram, No. 19
1 to 5 are explanatory diagrams of the knitting progress by the third overlocking method. Needle bed...1, Main needle...4, Overlock needle...36,
Normal size stitches...La, slightly larger stitches...
…Lb.

Claims (1)

[Claims] 1 Among the stitches La and Lb knitted by the knitting needles 4 arranged on the needle bed 1, the stitch Lb intended for reducing or overlocking is knitted in advance to be slightly larger than the other stitches La, and then the stitch Lb is slightly larger than the other stitches La. Large stitch Lb
For the knitting needle 4 that is suspended, the knitting needle 4 is capable of knitting stitches that are inside out and inside out from the stitches La and Lb that are normally knitted.
Transferring the slightly larger stitch Lb from the knitting needle 4 to the darning needle 36 by matching the book darning needle 36;
Thereafter, the transferred stitch Lb and the darning needle 36 are moved in the knitting needle arrangement direction to make the darning needle 36 correspond to the adjacent knitting needle 4 adjacent to the knitting needle 4, and in this state, the darning needle 36 is suspended from the adjacent knitting needle 4. An darning stitch characterized in that the lowered stitch Lb is transferred to the hook 36a of the darning needle 36, and the slightly larger stitch Lb is knocked over from the darning needle 36 to form an darning stitch by the slightly larger stitch Lb. Method.