JP2011167432A - Sewing needle having thread insertion hole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sewing needle having a thread insertion hole which enables even a person having a low visual acuity to easily mount a sewing thread to the thread insertion hole of the sewing needle, and to firmly hold the part of the sewing thread mounted in the thread insertion hole and dispenses with excess sewing thread. <P>SOLUTION: In the sewing needle having the thread insertion hole with one end sharply formed and the other end part used for inserting the sewing thread, the thread insertion hole is formed in a slit shape extending in the longitudinal direction of the sewing needle and a sewing thread guiding passage inclining from the slit-like thread insertion hole on the lower side of the advancing direction of the sewing needle toward the outer side of the upper side of the advancing direction of the sewing needle. A thread holding part is formed by converging the upper side end of the slit-like thread insertion hole in the advancing direction of the sewing needle. When the sewing thread is clamped and held in the thread holding part, the thread holding part is elastically deformed by the size of the sewing thread and the guiding passage of the sewing thread is closed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sewing needle having a thread insertion hole.

As people age, their sight gradually deteriorates due to the aging phenomenon, and it becomes so-called presbyopia, which makes it particularly difficult to see objects at close distances.
When the visual acuity decreases, for example, when making a repair, it becomes difficult to pass the sewing thread through the thread insertion hole of the needle.

  In order to cope with these problems, as disclosed in Patent Document 1 and Patent Document 2, a part of the thread insertion hole is opened, and the sewing thread is slid into the thread insertion hole from this opening portion, thereby reducing visual acuity. However, there are some that can easily attach the sewing thread to the sewing needle without passing the thread tip from the front of the conventional annular thread insertion hole.

  However, in such a case, as in the conventional case, unless the thread tip side portion passed through is sufficiently long, the sewing thread comes out from the thread insertion hole of the needle while repairing, and the needle again There is a problem that it takes time and effort to reinsert the thread into the thread insertion hole.

  Therefore, in general, the thread end side that has been threaded is made sufficiently long to prevent it from coming off, and the sewing thread is sewn so that it does not come off during needle movement. In addition to being in a state that is said to be, there is a problem that the thread in the lengthened part for preventing the slipping becomes a useless thread that does not contribute to sewing.

JP 2006-102231 A Japanese Utility Model Publication No. 7-27478

  The sewing needle having the threading hole according to the present invention has been proposed in view of the above problems, and even if the eyesight is lowered, the sewing thread can be easily attached to the threading hole of the sewing needle, and the sewing needle is attached to the threading hole. It is an object of the present invention to provide a sewing needle having a thread insertion hole that can hold a sewing thread of a portion firmly and does not require an extra sewing thread.

  In order to achieve the above object, a sewing needle having a thread insertion hole according to the present invention is a sewing needle having a thread insertion hole in which one end is sharply formed and a sewing thread is inserted in the other end portion, and the thread insertion hole is the sewing needle. Is formed in a slit shape extending in the longitudinal direction of the sewing needle from the slit-shaped thread insertion hole on the needle tip side (lower hand movement direction side) of the sewing needle toward the outer side of the needle rear portion side (hand movement direction upper side) of the sewing needle. In addition to forming a slanted thread introduction passage, the thread holding direction upper end of the sewing needle in the slit-shaped thread insertion hole is converged to form a thread holding part, and the sewing thread is sandwiched and held in the thread holding part. The main feature is that the thread holding portion is elastically deformed by the thickness of the sewing thread so that the sewing thread introduction passage is closed.

  Further, in the sewing needle having the thread insertion hole according to the present invention, the end of the member positioned outside forming the sewing thread introduction passage is not sharpened, and the slit-shaped thread insertion hole is corrugated in a side view. It is also characterized by being composed.

  The sewing needle having the thread insertion hole according to the present invention is formed in a slit shape in which the thread insertion hole extends in the longitudinal direction of the sewing needle, and the sewing needle extends from the slit-shaped thread insertion hole on the lower side in the needle moving direction of the sewing needle. Forming a sewing thread introduction passage that inclines toward the outer side on the upper side in the direction of needle movement, and forming a thread holding portion by converging the upper end side in the direction of needle movement of the sewing needle in the slit-shaped thread insertion hole. When the sewing thread is sandwiched and held in the portion, the thread holding portion is elastically deformed by the thickness of the sewing thread and the sewing thread introduction passage is closed.

Thereby, even if the eyesight is lowered, the sewing thread can be easily inserted from the sewing thread introduction passage into the slit-shaped thread insertion hole.
In addition, since the sewing thread inserted through the thread insertion hole is firmly held by the thread holding part and is prevented from coming off, there is no need for an extra thread as in the conventional case, and it does not become a "lower long thread" and is efficient. There is an advantage that can be sewn.

Furthermore, the sewing thread held by the thread holding portion of the thread insertion hole elastically deforms the thread holding portion and closes the sewing thread introduction passage, so that the sewing thread is sandwiched between the thread holding portions and firmly held.
Thus, when the yarn introduction passage is closed, there is an advantage that the yarn and the fabric due to the tip of the yarn insertion passage are not damaged or bruised at the time of hand movement.
Further, in addition to the above-described effect, in addition to the above-described effect, there is an advantage that it is possible to prevent the thread and the fabric from being damaged at the point where the needle is pointed at the time of sewing or needle movement in addition to the above effect. .

  In addition, when the slit-like thread insertion hole is bent into a wave shape when viewed from the side, the thread insertion hole can be formed long and the sewing thread held by the thread holding part can be held more firmly. There is also an advantage that the sewing thread is not accidentally detached.

FIG. 3 is a perspective view of a sewing needle having a thread insertion hole according to the present invention. These are the front views of the state which expanded the principal part of the sewing needle which has a thread | yarn insertion hole concerning this invention. These are perspective views which show the use procedure of the sewing needle which has the thread | yarn insertion hole concerning this invention. FIG. 3 is a perspective view of a state in which a sewing thread is attached to a sewing needle having a thread insertion hole according to the present invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a sewing needle having a thread insertion hole according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a sewing needle having a thread insertion hole according to the present invention. In FIG. 1, reference numeral 1 generally indicates a sewing needle having a thread insertion hole 2.
The sewing needle 1 having the thread insertion hole 2 includes a needle tip portion 4 formed by sharpening one end of a thin metal needle main body 3 and a thread mounting portion 7 for attaching the sewing thread 6 to the needle rear portion 5 at the other end. It is configured with.

The thread mounting portion 7 is formed in a slightly flat shape as shown in FIG. 1 and FIG. 2, and the slit-shaped thread insertion hole 2 extending in the longitudinal direction of the sewing needle is formed on the flat surface. A thread introduction passage 8 is formed from a portion closer to the needle tip portion 4 side (lower hand side in the direction of needle movement) of 2 toward the outer side of the needle rear portion 5 side (upper side in the direction of needle movement).
The thread insertion hole 2 has a wide opening width H on the needle tip part 4 side, and forms a thread holding part 9 that converges narrowly in a part extending in the vicinity of the end of the needle rear part 5, and the center part is bent upward. The waveform 10 is formed.

  As described above, the yarn introduction passage 8 is formed from the portion closer to the needle tip portion 4 side of the yarn insertion hole 2 toward the outside of the needle rear portion 5, and a step-down shape in which the middle portion is changed in inclination angle. The end portions 8a and 8b forming the yarn introduction passage 8 are overlapped on the inside and outside, but the stepped portion is omitted to form a straight line or an arc. You can also

A procedure for attaching the sewing thread 6 to the sewing needle 1 having the thread insertion hole 2 formed as described above will be described below.
First, as shown in FIG. 3, the sewing thread 6 is formed in an inverted U shape and held in one hand 11, and the portion having the thread insertion hole 2 of the sewing needle 1 held in the other hand 12 is formed in an inverted U shape. The portion 6 a that is folded back in the sewing thread 6 is brought into contact with the side surface closer to the needle tip portion 4 than the opening portion 13 of the thread introduction passage 8.

While keeping this state, the sewing thread 6 is gently slid toward the needle rear portion 5 (rear end portion) of the sewing needle 1.
When the folded portion 6a of the sewing thread 6 reaches the opening portion 13 of the thread introduction passage 8, the inner end portion 8b forming the thread introduction passage 8 slips due to the tension of the sewing thread 6 to bend downward in the figure. The sewn thread 6 falls into the opening 13. If the hand 11 feels when it is depressed, the sewing thread 6 is moved in the direction opposite to the previous direction, leftward in the figure.
Then, the sewing thread 6 passes through the thread introduction passage 8 from the opening portion 13 and falls into the side where the opening width H of the thread insertion hole 2 is large, and stops moving to the left.

After that, the sewing thread 6 is slowly moved to the right in the figure to be held by the thread holding portion 9. When the sewing thread 6 is moved through the thread insertion hole 2 formed in the waveform 10, an inverted U-shape is obtained. The length is adjusted so that one end of the sewing thread 6 held in the hand 11 in the shape of the hand 11 becomes the minimum necessary as shown in FIG.
When the sewing thread 6 is attached to the thread holding portion 9 of the thread insertion hole 2 of the sewing needle 1, the inner end 8b forming the thread introduction passage 8 is pushed up by the thickness of the sewing thread 6 as shown in FIG. Thus, the opening portion 13 of the yarn introduction passage 8 is closed.

Thus, when the inner end 8b is pushed up so that the inner end 8b forming the yarn introduction passage 8 and the outer end 8a come into contact with each other and the opening portion 13 is closed, the inner end 8b is closed. Since the portion 8b is pressed down by the outer end portion 8a, the sewing thread 6 held in the yarn holding portion is firmly held because it is not raised any further.
Thereby, it is possible to reliably prevent the sewing thread 6 from unexpectedly coming out of the thread insertion hole 2 of the sewing needle 1 during the movement of the needle.

When the cloth is thick or during the movement of the sewing needle, it is generally difficult to pass the sewing needle 1 by pushing the needle rear portion 5 (rear end portion) of the sewing needle 1.
Even in such a case, as described above, the inner end portion 8b forming the yarn introduction passage 8 and the outer end portion 8a come into contact with each other and the opening portion 13 is closed, so that the needle rear portion 5 (rear end) Since the force that presses the portion) is transmitted from the contacted portion to the needle tip portion 4 side, the thread insertion hole 2 is not easily broken and the durability does not deteriorate.

In the above embodiment, the outer end 8a forming the yarn introduction passage 8 is sharpened, but this sharpened portion is formed into an arc shape as shown by a dotted line A in FIG. When a thick sewing thread is attached, the sewing thread 6 can be prevented from being pierced by a sharp point and damaged.
In the above embodiment, the sewing thread 6 is described as sliding from the lower side to the upper side of the opening part 13 of the thread introduction passage 8. Of course, it is possible to attach the thread insertion hole 2 by sliding it from the lower side to the lower side.

Furthermore, in the above-described embodiment, the shape of the thread insertion hole 2 can be made straight, as well as the illustration is omitted, but it goes without saying that it can be made into a waveform having two or more peaks. There is nothing.
In addition, in the above-described embodiment, the thread mounting portion 7 that forms the thread insertion hole 2 is formed to be slightly flat. However, the present invention is not limited to this, and the section may be semicircular or circular, that is, sewn. It is also possible to make the entire needle 1 cylindrical.

DESCRIPTION OF SYMBOLS 1 ... Sewing needle 2 ... Thread insertion hole 3 ... Needle body 4 ... Needle tip part 5 ... Needle rear part 6 ... Sewing thread 6a ... Folded part of 6 7 ... Installation Part 8: Thread introduction passage 8a ... Outer end part 8b ... Inner end part 9 ... Thread holding part 10 ... Waveform 11 ... One hand 12 ... The other Hand 13 ... Opening

Claims (3)

  In a sewing needle having one end formed sharply and a thread insertion hole through which the sewing thread is inserted at the other end, the thread insertion hole is formed in a slit shape extending in the longitudinal direction of the sewing needle, Forming a sewing thread introduction passage that inclines from the slit-shaped thread insertion hole toward the outer side of the sewing needle in the direction of moving the needle, and converging the upper end of the sewing needle in the direction of moving the needle in the slit-shaped thread insertion hole. The thread holding portion is formed, and when the sewing thread is sandwiched and held in the thread holding portion, the thread holding portion is elastically deformed by the thickness of the sewing thread and the sewing thread introduction passage is closed. A sewing needle having a thread insertion hole.   The sewing needle having a sewing thread insertion hole according to claim 1, wherein an end of an outer member forming the sewing thread introduction passage is not sharpened.   The sewing needle having a thread insertion hole according to claim 1 or 2, wherein the slit thread insertion hole is bent in a wave shape in a side view.

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