JPH02218390A - Sewing machine needle - Google Patents

Abstract

PURPOSE:To develop the unique appearance, massive feeling, and color in embroidery by forming a plurality of thread holds. CONSTITUTION:A needle 1 is installed onto an ordinary embroidering machine, and the same or different kinds of threads are used by the insertion into the thread holes 9 and 11. For example, the threads 25 and 27 having different colors which are driven out from bobbins 21 and 23 are inserted into a thread path 29, and introduced into the first thread adjustors 35 and 37 by the thread guides 31 and 33, and further allowed to pass in the second thread adjustors 39 and 41. Then, the thread is allowed to pass through three thread guides 43, 45 and 47, and introduced to the last thread guide 53 through balances 49 and 51. By the thread guide 53, the both threads 25 and 27 are guided into the same guide hole. Of course, the separated guide holes may be used for preventing the entanglement of the both threads 25 and 27. Then, the thread is inserted separatedly into the thread holes 9 and 11 on the needle 1 installed onto the embroidering machine.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is applied to needles used in sewing machines for embroidery, lockstitching, etc.

[Prior Art] Conventionally, sewing machines have been used for tasks such as embroidery and lockstitching. These sewing machines use special needles.

This needle has a needle hole for threading near the tip.
By inserting the upper thread inserted through the thread into the fabric together with the needle, the needle thread is tied to the lower thread on the back side of the fabric to perform embroidery or sewing.

In embroidery performed in this manner, the texture of the pattern formed on the fabric is an important factor that determines the quality of the embroidery. One way to create a special texture is to embroider the item twice and then embroider it again. This is because by layering yarns of different colors and textures, or by layering the same yarn, it is possible to create subtle changes in color, texture, and volume that are different from the case of just one layer.

[Problem to be solved by the invention] In order to carry out this, the needle is dropped again into the place where the stitches were once made, but since the fabric is originally flexible, it expands and contracts during the sewing process, causing No matter how accurately the needle drop point is mechanically controlled the second time, it is very difficult to control the needle drop point to the same point on the fabric the second time. Therefore, even if an attempt was made to form embroidery or stitches with a predetermined texture by overlapping threads, the overlapping pattern of the upper and lower patterns would differ for each sewing operation, leading to a decrease in quality.

[Objective] An object of the present invention is to provide a sewing machine needle that allows a plurality of threads to perfectly match each other to form stitches on cloth.

[Means for Solving the Problems] The sewing machine needle of the present invention is characterized by having a plurality of needle sizes, and solves the above problems.

[Function] By having a plurality of thread sizes, one needle can carry a plurality of threads to be overlapped. Therefore, when this needle is used in a sewing machine, all the needle threads can be accurately dropped at the same needle drop point on the fabric in one sewing operation, and there is no need to drop the needle at the same needle drop point again. Therefore, it is possible to pierce the same location with a plurality of threads with high precision.

[Example] Next, an example will be described. FIG. 1 shows a first embodiment of the invention. FIG. 1(A) shows a front view of the sewing machine needle 1 of this embodiment, FIG. 1(B) shows a rear view, and FIG. 1(C) shows a left side view. Here, the sewing machine needle 1 is an embroidery needle, and can be distinguished into a base portion 3, an intermediate portion 5, and a head portion 7.

The base portion 3 is a portion that is held on the embroidery sewing machine side.

Two large holes 9.11 are drilled in the head 7.

These two large quantities 9.11, after inserting the needle into the fabric,
The recess 13 is opened through which a portion of the thread loop catcher passes so that each thread loop can be captured by a thread loop catcher (not shown). Further, on the opposite side of the recess 13, from the head 7 to the base gf3
3 is provided with a thread groove 17, which is configured to accommodate both threads when the needle 1 is inserted into the fabric.

This needle 1 is attached to an ordinary embroidery machine, and threads of the same or different types are passed through the needle 1 to a length of 9.11 degrees. An example of such an embroidery machine is shown in FIG. Different colored threads 25.27 unwound from bobbin 21.23
passes through the thread path 2nd, reaches the first thread tension device 35.37 at the thread guide 31.33, and then reaches the next second thread tension device 39.4.
Pass through 1. Next, it passes through three thread guides 43, 45, 47, a thread take-up 49, 51, and reaches the last thread guide 53.

In this thread guide 53, both threads 25 and 27 are guided to the same guide hole. Of course, separate guide holes may be provided to prevent the two threads 25 and 27 from becoming entangled. Next, the needles 1 are inserted into the needles 9 and 11 of the embroidery machine separately. Of the above-mentioned balances 49 and 51, the number of balances 49 is more than the number of needles, but in this embroidery machine, it operates in synchronization with the operation of needle 1 like the other balances.

Therefore, when this embroidery machine is used, embroidery is simultaneously performed on the same area of the fabric using threads of different colors. As a result, no matter how many times the same embroidery pattern is repeated, the pattern for each thread does not shift and the same texture and color can be reproduced. Moreover, since it is not simply a combination of overlapping patterns, the colors of both yarns (25°27) mix appropriately, creating a unique color feel. Also, fluffy yarn and non-fuzzy yarn,
Or the texture of shiny thread and non-glossy thread.
When yarns with different textures are combined, they are properly mixed to create a unique texture. Furthermore, if the threads are the same, the needle drop points will not differ and they will overlap completely, creating a sufficient sense of volume.

- Next, a sewing machine needle 61 according to a second embodiment of the present invention is shown in FIG. The difference from the first embodiment is that the large quantities 69.71 are arranged in the vertical direction. Other parts having the same functions as those in the first embodiment are indicated by the same numbers. In this embodiment, by arranging the threads 69 and 71 vertically in this manner, the embroidery produces a texture different from that in the first embodiment even if the same thread is used. In particular, since the threads can be arranged more densely on the fabric than in the first embodiment, the sense of volume increases.

Next, FIG. 4 shows a sewing machine needle 81 according to a third embodiment of the present invention. The difference from the first embodiment is that the large quantities 89 and 91 are arranged diagonally. Parts having the same functions as those in the first embodiment are indicated by the same numbers. In this embodiment, by arranging the yarn loops 89 and 91 vertically in this way, when each yarn loop is captured by a yarn loop capturing body (not shown), the needle 81
The position of the large amount 89.91 when the thread is pulled out upward matches the position of the thread ring catcher moving from right to left in Fig. 4 (A), and both threads 89 and 91 have the same size. can be caught by the thread ring catcher in a looped state, and both threads 89, 91
capture is ensured. Further, it is possible to provide a texture different from that of the first embodiment and the second embodiment.

It is also possible to further increase the amount. For example, as shown in the fourth embodiment of FIG. 5, a large amount of 103.10
5,107 may be drilled. In use, threads may be threaded through all three sizes 103 to 107, but two sizes may be selected and used depending on the desired texture, color, etc. Even if you use three of the same thread, you can create a voluminous feel.

In addition, as in the fifth embodiment shown in FIG.
13, 115, 117, and 119 may be drilled. In this case as well, the thread may be threaded through all four sizes 113 to 119, or three or two of the four sizes 113 to 119 may be selected and used as necessary. If you use 4 wooden threads, you will get an even more voluminous look.

Further, the tension of the plurality of threads passed through the needle holes of the needles 1, 61.81, 101.111 is adjusted by the corresponding thread tension controller, but if the tension of the threads is made different for each thread, Threads with strong tension cling to the cloth and slip under threads with weak tension, so texture and color can be adjusted by adjusting the relative tension of the threads.

The above is true not only for embroidery sewing machines but also for lockstitch sewing machines.If you use the needle of the above example, all the threads will be inserted at the same needle drop point, so you can get a consistent quality and voluminous feel. The embroidery is realized. Furthermore, by using different threads, it is easy to achieve the desired texture, texture, and color of the seams.

Also, instead of providing a thread take-up for each thread as shown in Figure 2,
For example, as in the thread take-up 121, 131 of FIG. 7 or 8, a plurality of threading holes 121a are provided.

121b, 121c, 131a, 131b, 131c,
131d and 131e are opened and multiple threads 12 are used with one thread take-up.
3, 125, 133, 135, 137.

In addition, a pin pin spring (yarn take-up spring) may be provided for each yarn.

[Effects of the Invention] Since the sewing machine needle of the present invention has multiple thread sizes, it is possible to accurately form stitches using multiple threads at the same position even with conventional sewing machines, and to always produce stitches of stable quality. In particular, the texture, texture, and color of the embroidery can be made stable for all products.

Also, unlike simply sewing once and then sewing with other threads, the mixture of multiple threads creates a unique texture, texture, and color. Furthermore, since multiple threads are sewn in at the same time to produce the same volume, the number of stitches is reduced.

[Brief explanation of the drawing]

FIG. 1(A) is an enlarged front view of the first embodiment of the sewing machine needle of the present invention, FIG. 1(B) is its rear view, FIG. 1(C) is its left side view, and FIG.
The figure is an explanatory diagram of the configuration of the embroidery sewing machine, Figure 3 (A) is an enlarged front view of the second embodiment, (B) is its rear view, (C) is its left side view, and Figure 4 (A) is the enlarged front view of the second embodiment. Enlarged front view of Example 3, (
B) is a rear view thereof, (C) is a left side view thereof, FIG. 5 is an enlarged front view of the fourth embodiment, FIG. 6 is an enlarged front view of the fifth embodiment, and FIG. 7 is an example of the balance. FIG. 8 is an explanatory diagram showing another example of the balance. 1.61,81,101.111...Sewing machine needle 9,
11.69, 71, 89.91. 103. 105,
107. 113. 115. 117. 119・
・・Large quantity

Claims (1)

[Claims] 1. A sewing machine needle characterized by having multiple thread holes.