JPH0796741B2 - Sinker in multi-stage flat knitting machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sinker for a multi-stage flat knitting machine such as a four-bed bed.

[0002]

2. Description of the Related Art A sinker has been used in which the tip edge of a plate-like member provided between needle grooves at the tip of a needle bed has a loop forming edge. The sinker loop forms a sinker loop by engaging the knitting yarn drawn into the needle with the loop forming edge. It is necessary for each needle bed because the length of the knitting yarn extending between the loop forming edge and the hook of the needle is the length of one loop of the knitted fabric. In a multi-stage flat knitting machine in which a needle bed is further provided above the needle bed provided facing each other, the upper needle bed and the lower needle bed head are provided close to each other. It is known that the sinker provided on the needle bed is extended to the front surface of the upper needle bed to serve as the sinker for the upper needle bed and the lower needle bed (Japanese Patent Publication No. 1-57173).
issue). This sinker has a front end edge as a loop forming edge and extends linearly vertically to control the loop length during loop formation, but has no effect of pulling the knitted loop downward.

[0003]

SUMMARY OF THE INVENTION In view of the above points, the present invention is a sinker common to both upper and lower needle beds, and holds down the stitches of the existing knitting, and pulls up the knitted fabric of the existing knitting when forming the stitches. The purpose is to obtain a sinker that can prevent the knitted fabric from being pushed down as necessary.

[0004]

A flat knitting machine having a lower needle bed and an upper needle bed which is positioned above the lower needle bed and has their heads close to each other, and is located at the head portions of both needle beds. A hook-shaped protrusion for holding the sinker loop of the knitted fabric knitted by the lower needles is provided on the upper part of the lower end edge of the sinker made of a plate-like body that is vertically swingable between the needles of each needle bed. Was sequentially provided with a loop forming edge by a lower needle and a loop forming edge by an upper needle.

[0005]

The sinker, which is a plate-like member located at the head of both upper and lower needle beds and swingably in the vertical direction between the needles of each bed, is provided at the lower edge of the end portion of the sinker when it is swung downward. While pulling down the knitted fabric by the hook-shaped protrusion for loop holding of the knitted fabric, the loop forming edge by the lower needle provided on the upper part of the hook-shaped protrusion locks the sinker loop by the lower needle when knitting by the lower needle,
The sinker loop formed by the upper needle is locked by the loop formed edge formed by the upper needle provided above the loop formed edge formed by the lower needle to receive the knitting yarn for knitting the upper and lower needles by one sinker.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of an apparatus for carrying out the present invention will be described with reference to the drawings.

The knitting machine of the present invention is a 4-bed type knitting machine in which an upper needle bed 2 is further supported on an upper portion of a lower needle bed 1 having a mountain-shaped top portion facing each other. Center line X- which passes through the ostium where the head is concentrated
It is symmetrical with X as the center of symmetry, and FIG. 1 shows only the left half of the center line XX.

In the illustrated example, the upper needle bed 2 is supported by the lower needle plate 3A of the lower needle bed 1, but the upper and lower needle beds 2, 1 may use separate needle plates. The lower needle bed base plate 4 is provided with a plurality of needle plate grooves 5 as in the conventional needle bed, and the lower needle plates 3A and 3B are fitted in the grooves 5 to form the needle bed base plate 4 and the lower needle plate 3
A wire 9 is passed through the notches 7 and 8 provided in each of A and 3B to fix them. As shown in FIG. 3A, the lower needle plate 3A is a head needle including a lower needle guide portion 10 extending from the head portion to the tail portion of the lower needle bed 1 and an extension portion extending above the head portion of the lower needle guide portion 10. The plate 11 and the upper needle bed substrate support plate 12 located at the upper edge of the needle plate 3A behind the plate 11.
A plate-shaped body composed of a fixed beam insertion hole 15 for inserting a fixed beam 14 of an upper needle bed fixing member 13 described later, a sinker support hole 16, a needle blade guide groove 17, and wire insertion holes 18A, 18B, 18C. , ..., and so on. A support surface 20 for supporting the upper needle bed substrate 19 (FIG. 4) is provided on the upper needle bed substrate support plate 12 in an inclined manner, and an upper needle bed substrate support plate 12 and a head are provided on the extension of the support surface 20. A wedge-shaped notch 21 is provided at the boundary with the needle plate 11 of the section. The lower needle plate 3B shown in FIG. 3B has a structure in which the upper needle bed substrate supporting plate 12 of the extension portion extending above the head of the lower needle plate 3A is removed.

The lower needle plates 3A and 3B are alternately inserted or a plurality of 3A to 3A are alternately inserted into the needle plate groove 5 of the lower needle bed substrate 4, and the wires 9 are inserted into the notches 7 and 8 as described above. The lower needle bed substrate 4 and the needle plates 3A and 3B are fixed by passing them through, and a needle groove 22 is formed between the lower needle plates 3A and 3B. A lower needle 23 is slidably inserted into the needle groove 22.

The upper needle bed 2 is fixed to the lower needle bed 1 by a fixing member 13 by the following means. In the illustrated example, the head 2A of the upper needle bed 2 shares a needle plate with the head 1A of the lower needle bed 1, and the head needle plate 11 is the needle plate of the head 2A of the upper needle bed 2. The fixing member 13
Is an engaging means composed of a wedge-shaped head portion 24 and a wedge-shaped notch 25 for engaging the upper needle bed substrate 19 and the upper needle bed substrate supporting plate 12 of the lower needle plate 3A,
It comprises a locking and fixing means including a locking member 26.

The upper needle bed substrate 19 is placed on the supporting surface 20 of the upper needle bed substrate supporting plate 12 of the lower needle plate 3A, and the wedge-shaped head 24 at the tip of the upper needle bed substrate 19 is attached to the lower needle plate 3A. Abut the wedge-shaped notch 21. The upper needle bed substrate 19, a notch 25 is provided at a position facing the end of the upper needle bed substrate support plate 12, and a wedge-shaped end of one end of a belt-shaped locking member 26 extending in the knitting width direction of the knitting machine. The portion 27 is engaged with the notch 25, and the other end is in contact with the end portion 28 of the upper needle bed substrate support plate 12 of the lower needle plate 3A.
And the fixed beam insertion hole of the lower needle plate 3A
A bolt 29 is screwed between the fixed beam 14 extending in the knitting width direction and the locking member 26 inserted into the knitting 15, and the bolt 29 is tightened to thereby form the wedge-shaped head portion 24 and the notch 25 of the upper needle bed substrate 19. The dovetail portion 30 between them is gripped by the wedge-shaped notch 21 of the lower needle plate 3A and the wedge-shaped end portion 27 of the locking member 26, and the upper needle bed substrate 19 is fixed on the lower needle plate 3A.

FIG. 4 shows the upper needle bed substrate 19 and FIG. 5 shows the upper needle plate 31. In the upper needle bed substrate 19, needle plate grooves 32 are provided at the same pitch and in the same phase as the lower needle bed substrate 4, and the upper needle plate 33 is inserted.

The wire 36 is fixed between the notch 34 provided at the upper part of the head of the upper needle bed substrate 19 and the notch 35 provided at the lower part of the head of the upper needle plate 33, for example. An upper needle groove 37 is formed between the adjacent upper needle plates 33, 33, and an upper needle 38 is slidably inserted.

The head needle plates 11 of the lower needle plates 3A and 3B have exactly the same shape. Then, a sinker spacer 41, a sinker 42, a sinker jack 43, a knockover bit on the head needle plate 11
44 etc. are provided. The details will be described with reference to FIGS. 1, 3, and 6 to 13.

The sinker spacer 41 is attached to the step portion 45 provided on the head needle plate 11 of the lower needle plates 3A and 3B.
Position. The sinker spacer 41 (FIG. 12) has an inverted U-shaped wire insertion notch 46 at the lower part of the tail, an engaging recess 48 for inserting a band 47 at the upper edge, and a lower part at the edge extending below the head. It has a refraction piece 49 for pressing the needle 23.
Then, the sinker spacer 41 includes the wire insertion notch 46 of the tail portion and the enlarged step portion 50 of the head needle plate 11 (see FIG.
6), the lower needle plates 3A and 3B are bound together and engaged with the wire 51 inserted through the wire insertion hole 18B, and the recessed portion 52 at the lower part of the head is engaged with the wire 53 similar to the wire 51. They are combined and fixed to the head needle plate 11.

By fixing the sinker spacer 41 to the head needle plate 11, the head needle plate 11 is provided between the sinker spacer 41 and the top of the head needle plate 11.
A gap is created by the top step portion 54 (C in FIG. 3) of the sinker jack 43, and the sinker jack 43 is inserted therein (FIG. 7). The step 54
Is provided up to the tip of the head of the head needle plate 11, and a sinker 42 is fitted to the tip of the head as will be described later. As shown in FIG. 10, the sinker jack 43 is formed of an elongated plate-like body, and the thin portion near the tail portion is bent in a slightly V shape so that the sinker jack 43 is formed into the step portion 54.
When it is inserted into the gap due to, the butt 55 is formed in the upper part and the downward engaging recess 56 is formed in the head part. The engagement concave portion 56 is engaged with the engagement convex portion 57 provided on the upper edge of the sinker 42.
Like the sinker jack 43, the sinker 42 is also inserted in the same gap by the step 54 at the head end of the head needle plate 11 as described above, is provided at the head of the head needle plate 11, and is provided at the top step. The swinger shaft portion 58 provided in the tail portion is fitted into the sinker support hole 16 formed in contact with the step portion at the tip of the head portion continuous with 54, and the sinker 42 is swingably supported. The sinker 42 has angular portions 59, 6 in the vertical direction of the front edge.
0, a loop forming edge 61 composed of an upper needle loop forming edge 61U and a lower needle loop forming edge 61D, and a stitch holding protrusion 62 are formed therebetween.

On the side surface of the head needle plate 11 opposite to the step portion 45, there is provided a guide groove 64 into which the transfer blade 63 of the upper needle 38 enters and slides.
A knockover bit 44 is slidably provided on the 64 side while being placed on the wires 51 and 53. Knock over bit 44
Is a flat shank 65 on which the upper needle 38 is placed, a butt 66 on the tail, and a square loop holder 67 on the head.
have. The hook 68 of the upper needle 38 is located above the loop retainer 67. The butt 66 of the knockover bit 44, the bat 55 of the sinker jack 43, and the like are head needle plates 11 in which comb-teeth-shaped needle plate spacers 69 are juxtaposed so that their positions can be accurately held.
It fits in the gap and keeps the gap accurately. The cam of the upper carriage 70 abuts on the butt 66 of the knockover bit 44, which allows the butt 66 to advance and retreat along the upper needle 38.

Upper needle 38 provided on the upper needle bed 2, sinker jack 43, knockover bit
A lock 71, a sinker cam 72, and a knockover bit cam 73 for operating the 44 and the like are provided on the upper carriage 70, and a lock 74 for operating the lower needle 23 is provided on the lower carriage 75. FIG. 14 shows the upper lock 71 of the upper carriage 70,
In the plan view showing the sinker cam 72, the knockover bit cam 73, the upper needle 38 and the lower needle 23 of the lower carriage 75 in an overlapping manner, the lock 71 of the upper carriage 70 is indicated by a dashed line and the upper needle 38 is indicated by a dotted line. , Sinker cam 7
2, the knockover bit cam 73 is shown by a solid line, and the lock 74 of the lower carriage 75 and the lower needle 23 are shown by a solid line. The lock 74 is the leading knitting cam 76 and rising cam, assuming that the carriage moves to the left.
77, guard cam 78, and trailing knitting cam 79. Reference numeral 80 is a presser that abuts the butt 82 of the select jack 81 shown in FIG. 1 and pushes down the needle to the rest position.

When performing the knitting operation according to the present invention, the needles of the beds 1 and 2 are operated by the locks 74 and 71 on the carriage corresponding to the lower needle bed 1 and the upper needle bed 2, respectively. In the bed 2, the knockover bit 44 is retracted together with the upper needle 38 in response to the operation of the lower needle 23 to prevent the lower needle 23 from moving forward and backward, and the sinker jack 43 as shown in FIG. The sinker 42 is swung up and down by operating it. The order of movement of the needles 23, 38, the sinker jack 43, the sinker 42, and the knockover bit 44 at the time of knitting the knitted fabric by the lower needle 23 is shown by A, B, C in FIG. 17 and A, B in FIG. , C.

When knitting with the lower needle 23, the upper needle 38 and the loop retainer 67 of the knockover bit 44 must be retracted from the advance path of the lower needle 23 so as not to obstruct the advance of the lower needle 23. I have to. 14 to 18, the forward / backward movement of the upper and lower needles 38 and 23 and the knockover bit 44 will be described.

14, it is assumed that the upper and lower carriages 70 and 75 move leftward, and the knitting cam 76U of the lock 71 of the upper carriage 70 maintains the upper needle rest position shown by the chain double-dashed line in FIG. 14 and the butt 83 of the upper needle 38. To the dotted line position. At this time, the butt 82 of the select jack 81 (shown in FIG. 1) of the upper needle 38 comes into contact with the presser 80 shown in FIG. 14 and is pushed into the needle groove 22 by the presser 80, and the needle butt 83 also becomes the same. The butt 83 does not come into contact with the rising cam 77, and thus does not move up in the needle groove 22 and maintains the rest position (position 1 in FIG. 14). At this time, the butt 66 of the knockover bit 44 is engaged with the knockover bit cam 73 and is in the advanced position. Further, the sinker jack butt 55 is engaged with the sinker cam 72 and is in the advanced position, and maintains the position where the sinker 42 is pivotally moved in the clockwise direction (the position 1 in FIG. 14 and A in FIG. 17). On the other hand, the lower needle 23 is not pulled down to the rest position because the knitting cam 76D of the lock 74 of the lower carriage 75 is in the position shown by the solid line in FIG. 14, and as the lower carriage 75 advances, it contacts the rising cam 77 and starts to rise. . At this time, the butt 66 of the knockover bit 44 is pulled down by the knockover bit cam 73, and the loop presser 67 of the knockover bit 44 retracts from the ascending trajectory of the lower needle 23. The sinker 42 maintains the same position as that of the above-described 1 (position 2 in FIG. 14, B in FIG. 17). Then lower needle 23
Is raised to the highest position by the rising cam 77, the knockover bit 44 is in the lowered position similar to the position 2 in FIG. 14, and the sinker jack butt 55 is the sinker cam.
It is pulled down by 72 and turns the sinker 42 counterclockwise (position 3 in FIG. 14, C in FIG. 17, A in FIG. 15), and the yarn feeder
Prevent contact between 90 and sinker 42. After this, yarn feeding is performed. Next, the needle butt 89 of the lower needle 23 is started to be pulled down by the knitting cam 79, but at this time, the knockover bit 44 remains in the lowered position, and the sinker 42 causes the sinker cam 72 to move the sinker jack 43 to the sinker jack 43. It advances and turns in the clockwise direction (position 4 in Fig. 14, A in Fig. 18). When the lower needle 23 is further pulled down by the guard cam 78, the butt 66 of the knockover bit 44 advances by the knockover bit cam 73, and the loop presser 67 of the knockover bit 44 takes the most advanced position. The sinker also takes the position of turning in the same clockwise direction as described above (position 5 in FIG. 14, position B in FIG. 18). Next, the lower needle 23 is pulled down to the lowest position by the knitting cam 79. The knockover bit 44 is most advanced as in the previous position, and the sinker 42 is also in the same position as described above (Fig. 14).
Position 6 of FIG. 18, C).

The vertical turning motion of the sinker 42 is interlocked with the movement of the yarn feeder 90, as shown in FIG. Yarn feeder 90
When feeding the yarn feeding 91 to the lower needle 23, the yarn feeding port 90 must approach the hook of the lower needle 23.
Therefore, turn the sinker 42 counterclockwise and
I try not to touch it. The sinker 42 is A in FIG.
As shown in B, the swing shaft portion 58 is fitted in the sinker support hole 16 of the head needle plate 11, and the head needle plate 11
Since the sinker jack 43 slides to the left in the figure, the sinker jack 43 swings counterclockwise around the swinging shaft portion 58 from the moving path of the yarn feeder 90 because When the sinker jack 43 is disengaged and slides to the right, the sinker jack 43 pivots clockwise and takes the sinker loop forming position. The sinker jack 43 is immediately advanced after the lower needle 23 receives the yarn feeding 91 at a position shown between C in FIG. 17 and A in FIG. 18, and the sinker 42 is moved to the clock hand as shown in A in FIG. Rotate in the direction. As a result, when the lower needle 23 descends, the yarn supply 91 is hooked on the lower needle knitted fabric forming edge 61D of the sinker 42, and as shown in FIG. 16B, the lower needle knitted fabric forming edge 61D and the lower needle 23 hook. The size of the loop 92 formed between the two is defined. Then, the new loop 92 is formed, and the stitch holding protrusion 62 of the sinker 42 engages with the sinker loop 94 of the already knitted fabric 93 and presses it down. By appropriately selecting the swing range of the sinker 42, it is also possible to push down the existing knitted fabric 93 by the stitch holding projection 62 of the sinker 42 when the sinker 42 turns in the clockwise direction. .

Similarly, the swinging state of the sinker 42 when knitting with the upper needle 38 is shown in FIG. 19, and the order of movement of the needle, sinker jack, and knockover bit is A in FIG.
B, C, and A, B, C in FIG. 21, when knitting with the upper needle 38, the knitting yarn 91 drawn into the hook of the upper needle 38 engages with the stitch forming edge 61U of the upper needle, and A loop 95 having a size is formed, and the knitted fabric 96 following the loop 95 abuts on the loop retainer 67 provided at the tip of the knocked-over bit 44 that has advanced, and the lower knitted fabric is drawn into the hook as the needle retracts. Are prevented.

[0024]

EFFECT OF THE INVENTION The sinker of the present invention is located at the heads of both needle beds of a flat knitting machine having a lower needle bed and an upper needle bed which is located above the lower needle bed and whose heads are provided close to each other. The hook-shaped protrusions for holding the sinker loop of the knitted fabric knitted by the needles on the lower part of the end edge of the sinker made of a plate-like body that is vertically swingable between the needles of each needle bed. Since the loop forming edge by the lower needle and the loop forming edge by the upper needle are sequentially provided, when the knitting by the needles of the upper and lower needle beds is performed, the thread is engaged with the thread guiding angle according to the pulling angle of the loop drawn into each needle. Not only can it be stopped, but the knitted fabric can be pulled down by swinging the sinker if necessary.

[Brief description of drawings]

FIG. 1 is an overall schematic side view showing only one side of a center line XX.

FIG. 2 shows a lower needle bed substrate, where A is a vertical side view and B is an enlarged plan view of the head.

FIG. 3 is a side view and a sectional view of a lower needle plate,
A is an example with an upper needle bed substrate support member, B is an example without an upper needle bed substrate support member, C is A
6 is a cross-sectional view taken along the line CC of FIG.

FIG. 4 shows an upper needle bed substrate, where A is a vertical side view and B is an enlarged plan view of the head.

FIG. 5A is a side view of the upper needle plate, and B is a front view of the same.

6 is a cross-sectional view taken along the line VI-VI in FIG.

7 is a sectional view taken along line VII-VII in FIG.

8 is a cross-sectional view taken along the line VIII-VIII in FIG.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 shows a sinker jack, where A is a side view,
B is a bottom view.

FIG. 11 is a side view of the sinker.

FIG. 12 is a side view of a sinker spacer.

FIG. 13 illustrates a knockover bit, where A is a plan view, B is a side view, and C is a rear view.

FIG. 14 is a plan view showing a cam arrangement on the upper and lower carriages,
The upper and lower beds are shown together as one.

FIG. 15 is a vertical cross-sectional side view of the head portion of the needle bed showing the swinging state of the sinker, where A is the upward swing of the sinker and B is the downward swing motion of the sinker.

FIG. 16 is a vertical cross-sectional side view of the needle bed head showing the relationship between the sinker, the needle, and the knitted loop when knitting with the needle of the lower needle bed, where A is the upper turn of the sinker and B is the lower part of the sinker. Shows when turning.

17A, 17B and 17C are side views sequentially showing the movements of the sinker jack, sinker, knockover bit, and upper and lower needles when knitting with the needles of the lower needle bed.

18A, 18B, and 18C are side views sequentially showing the operation following FIG. 17C.

FIG. 19 is a vertical cross-sectional side view of the needle bed head showing the relationship between the sinker, the needle, and the knitted loop when knitting with the needle of the upper needle bed, where A is the upper turn of the sinker and B is the lower part of the sinker. Shows when turning.

[FIG. 20] A, B, and C are side views sequentially showing the movements of the sinker jack, sinker, knockover bit, and upper and lower needles when knitting with the needles of the upper needle bed.

21A, 21B, and 21C are side views sequentially showing the operation following FIG. 20C.

[Explanation of symbols]

 1 Lower needle bed 2 Upper needle bed 1A Lower needle bed head 2A Upper needle bed head 23 Lower needle 38 Upper needle 42 Sinker 62 Hook protrusion

Claims (1)

[Claims] 1. A flat knitting machine having a lower needle bed and an upper needle bed positioned above and adjacent to each other, the heads of the needle beds being located at the heads of the needle beds. A hook-shaped protrusion for holding the sinker loop of the knitted fabric knitted by the lower needle is provided at the lower end of the edge of the sinker made of a plate-like body that is vertically swingable between the needles, and the upper needle is provided by the lower needle. A sinker in a multistage flat knitting machine, wherein a loop forming edge and a loop forming edge formed by an upper needle are sequentially provided.