JPS648101B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a double-knit circular knitting machine equipped with a pair of "latch" type knitting needles, an upper needle and a lower needle.

(Prior art) A conventional circular knitting machine has been proposed in which the upper and lower needles each produce double plain knits (Tenjiku knits), and these plain knits are sewn together to form a knitted fabric for underwear. has been done.

To sew the plain knitting together, one upper needle, which is pushed out at appropriate intervals by the pins of the wheel, is made to intersect with the lower needle. That is, as shown in FIG. 11, a wheel 15 is used, which has a groove 18 on the outer periphery into which the upper needle fits, and in which the groove 18 appropriately selected from these grooves 18 is filled with a pin 16. A plurality of needles are arranged along the outer periphery of the dial 8 as shown in FIG. It is something.

However, recently, a number of technical proposals have been made to increase the added value of knitted products. In particular, half of the circumference of the tubular knitted material can be knitted in a single layer like milling knitting, and the other half of the circumference can be knitted with double plain knitting. One-sided double-knit circular knitting machine that can make double-knit underwear with good heat retention (patent application 1983-)
214279) was proposed. Therefore, in order to further improve the heat retention of the double-knit portion on one side, a need has arisen for a single-sided double-knit circular knitting machine that can sew together only the double-knit portion.

(Problems to be Solved by the Invention) The present invention has been made in view of the above points, and its purpose is to knit half the circumference of a tubular knitted material using one knitting machine, such as by milling. To provide a single-sided double-knit circular knitting machine capable of knitting single-layer knitting and double-knitting plain knitting on the other half of the circumference, and sewing together only the double-knitted parts.

(Means for Solving the Problems) The gist of the present invention is to arrange a plurality of wheels 15 along the outer periphery of the dial 8, and hook the sewing butt 17 of the upper needle with the pin 16 of the wheel 15. In a double knitting circular knitting machine that sews a knitted fabric while pushing out the upper needle and crossing it with the lower needle, among the cam surfaces of the clearing cam 6 for the upper needle, a cam surface 6a for single knitting that is crossed with the lower needle is used. In addition, a double knitting cam surface 6b is formed in one step in the backward direction of the upper needle to avoid crossing with the lower needle, and the dial 8
The butt 1a of the single knitting upper needle 1 arranged around the half circumference of
is formed to a length that allows sliding on the cam surface 6a for single knitting, and a length that allows the butt 2b of the upper needle 2 for double knitting arranged on the remaining half circumference to slide on the cam surface 6b for double knitting. This invention relates to a double knitting circular knitting machine characterized in that the stitching butt 17 is provided only on the upper needle 2 for double knitting.

(Example) Hereinafter, the present invention will be described in detail based on the illustrated example.

In the circular knitting machine, the upper needles 1, 2 and lower needles 3, 4 rotate together due to the rotation of the dial 8 and the needle barrel 9, and the cam 6,
10 and 11 are stationary. The upper hands 1 and 2 protrude and retract in the outer circumferential direction (horizontal direction) along the radial needle groove of the dial 8, and the upper hands 1 and 2 have butts 1a and 2b.
are provided so that the upper needles 1 and 2 act on the clearlining 6 of the cam disk 7 and the static cam (not shown). The clearlining cam 6 is for pushing out the upper needles 1 and 2, and this cam surface is a cam surface 6a for single knitting,
A cam surface 6b for double knitting that is parallel to the cam surface 6a for single knitting and made one step in the backward direction of the upper needles 1 and 2;
It consists of a shared cam surface 6c. On the other hand, the lower needles 3 and 4 are located in needle grooves vertically carved on the outer circumferential surface of the needle barrel 9, rotate together with the needle barrel 9, and are moved to the tips of the lower needles 3 and 4 by the adjustment crest 10 and the raised ridge 11. appears and disappears in the vertical direction in a shape like C in Figure 4.

Reference numeral 15 in FIG. 6 denotes a plurality of wheels for sewing the plain knitting A, and a plurality of wheels are arranged along the outer periphery of the dial 8, and the wheel axis 21 is inclined with respect to the direction in which the upper needles 1 and 2 protrude. 1 at appropriate intervals with the upper needle
Each book is made to protrude and intersect with the lower needle. On the outer periphery of this wheel 15, an upper needle 1,
A groove 18 into which 2 is fitted is formed around the entire circumference, and pins 16 are provided at appropriate intervals, and the pins 16 are positioned within the groove 18. On the other hand, a stitching butt 17 is provided on the upper needle.
As the needle rotates, the wheel 15 rotates diagonally from the inside to the outside, and when the upper needle fits into the groove 18 having the pin 16, the sewing butt 18 of the upper needle is hooked by the pin 16. The upper needles are pushed out one by one at appropriate intervals, and the lower needles 3,
4 and sew together the double knitted flat stitches A as described below. The thick broken line in FIGS. 4 and 6 indicates the locus of the extruded tip of the upper needle 2.

Figure 8 shows the upper needle, and a shows the upper needle 1 for single knitting.
The butt 1a is made longer than the butt 2a of the upper needle 2 for double knitting shown in FIG. Therefore, the butt 2a of the upper needle 2 for double knitting slides on the cam surface 6b for double knitting and the shared cam surface 6C of the clearing cam 6, so that the tip of the upper needle 2 becomes as shown in FIG. As a result, as shown in FIG. 6, the upper needles 2 and lower needles 4 protrude without crossing each other, and each needle is used to knit plain knitting, and this plain knitting A is knitted in a double state. On the other hand, the butt 1a of the single knitting upper needle 1 slides on the single knitting cam 6a of the clearing cam 6 and the shared cam surface 6C, and the upper needle 1
The tips of the needles protrude in a shape as shown in FIG. 4, and as a result, the upper needles 1 and lower needles 3 intersect with each other as shown in FIG. 5, and milling stitch B is knitted. 14 is a guide for feeding the thread 13.

The upper needles 1 for single knitting are arranged in a row on half the circumference of the dial 8, and the upper needles 2 for double knitting are arranged in a row on the other half circumference of the dial 8, so that the half circumference of the tubular knitted material is doubled. The long flat stitch A will be used, and the other half will be the milling stitch B. In addition, upper needle 1 for single knitting and 2 for double knitting
You may change the arrangement as appropriate.

The sewing butt 17 is provided only on the upper needle 2 for double knitting among the upper needles, so that even if the upper needle 1 for single knitting fits into the groove 18 having the pin 16 of the wheel 15, The upper knitting needle 1 is not pushed out. Therefore, the upper needle pushed out by the pin 16 of the wheel 15 is only the upper needle 2 for double knitting, and therefore only the double knitting flat knitting A is pushed out by the upper needle and lower needle by the wheel 15. They will be sewn together by crossing them. FIG. 9 shows a knitted fabric knitted in the above manner, and 23 in the figure indicates a stitched portion. Incidentally, if long fibers are inserted between the double knitted flat knits A, a quilted knitted fabric can be made.

Figure 7 shows the lower needles 3 and 4, and the upper needle 1 for single knitting.
The lower needle 3 corresponding to the upper needle 2 for double knitting is made longer by x (for example, about 0.6 mm) than the lower needle 4 corresponding to the upper needle 2 for double knitting. and milling stitch B are descended and knitted at the same speed. 4a is the butt of the lower needle 4.

The knitted fabric C produced in this manner is used, for example, by applying the double knitted portion to areas where heat retention is particularly required, such as the back, the hips of a woman, or the abdomen of a pregnant woman.

(Effects) As described above, the present invention allows the clearing cam for the upper needle to intersect with the lower needle in one step in the backward direction of the upper needle along the single knitting cam surface that intersects with the lower needle. A cam surface for double knitting to be avoided is formed, the butt of the upper needle for single knitting arranged on half the circumference of the dial is formed to a length that can slide onto the cam surface for single knitting, and a cam surface for double knitting arranged on the remaining half circumference is formed. The butt of the upper needle for knitting is formed to a length that can slide on the cam surface for double knitting, so the butt of the upper needle for single knitting crosses the lower needle by sliding on the cam surface for single knitting. Half the circumference is single knitting (milling knitting), and on the other hand, the butt of the upper needle for double knitting slides on the cam surface for double knitting, so that the upper needle and lower needle do not intersect with the lower needle. Each knit is plain knitted, and the other half of the knitted fabric is double knitted, so that single knitting and double knitting are formed separately in the circumferential direction of the tubular knitted fabric.

In addition, a double knitting circular knitting machine has multiple wheels arranged along the outer circumference of the dial, and the pins of these wheels hook the sewing butt of the upper needle, pushing out the upper needle and sewing the knitted fabric while intersecting with the lower needle. In , the sewing butt was provided only on the upper needle for double knitting, so the upper needle for double knitting is the only one that is pushed out by the pin of the wheel.
Therefore, the double knitted flat knits as described above are sewn together by the intersection of the double knitting upper needle and lower needle pushed out by the wheel, and as a result, the double knitted part on one side is sewn together. This means that only the double knitted parts can be sewn together, resulting in the effect that the heat retention of the double knitted parts can be further improved. Furthermore, the design effect can be improved because the pattern created by stitching is formed only on one side.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the single-sided double knitting circular knitting machine of the present invention in which the yarn supply section and the knitted fabric winding section are omitted; Fig. 2 is a plan view of the clearing cam for the upper needle of the same; Figures 3a and b are cross-sectional views along X-X' and Y-Y' in Figure 2, Figure 4 is a diagram showing the positional relationship between the upper and lower needles of the same as above, Figures 5 and 6. FIG. 7 is an enlarged perspective view showing the protruding state of the needle during single knitting and double knitting as above, FIG. 7 is a perspective view of the lower needle as above,
Figures 8a and b are enlarged views of the same upper needle as above, Figure 9 is a cutaway perspective view of the same knitted material, Figure 10 is a schematic plan view of a conventional double knit circular knitting machine, and Figure 11 is the same as above. FIG. 1, 2... Upper needle, 1a, 2b... Butt, 3, 4,
5... Lower needle, 6... Clearing cam, 8... Dial, 15... Wheel, 16... Pin, 17... Sewing butt.

Claims (1)

[Claims] 1 Multiple wheels are arranged along the outer circumference of the dial, and the pins of these wheels hook the sewing butt of the upper needle, pushing out the upper needle and crossing it with the lower needle to sew the double knitted fabric. In a heavy knitting circular knitting machine, among the cam surfaces of the clearing cam for the upper needle, there is a clearing cam along the cam surface for single knitting that intersects with the lower needle and in the backward direction of the upper needle to avoid crossing with the lower needle. A cam surface for heavy knitting is formed, and the butt of the upper needle for single knitting arranged on half the circumference of the dial is formed to a length that can slide on the cam surface for single knitting, and the cam surface for double knitting arranged on the remaining half circumference is formed. A double knitting circular knitting machine characterized in that the butt of the upper needle for double knitting is formed to a length that can slide on the cam surface for double knitting, and the sewing butt is provided only on the upper needle for double knitting. .