Temporary fastening tool

Abstract

To solve problems in sewing overlaid cloths or the like by a sewing machine while inserting and pulling out marking pins, which is extremely troublesome work, such as injury risk of sticking a marking needle in a hand, breaking of the marking needle due to intersection of the marking needle and a sewing needle, engulfing of the marking needle in the sewing machine, and abrasion of a feed dog.SOLUTION: A temporary fastening tool of the invention is an alternative means to temporarily fasten overlaid cloths without using marking needles. The tool exerts temporary fastening effect on the overlaid cloths or the like by pulling out fibers of an upper cloth toward a lower cloth side and fibers of the lower cloth toward the upper cloth side by inserting a needle 5 fitted to a tip of a handle 1 into the overlaid cloths or the like sandwiched between a needle storing body 6 and a base 3. Protrusions for pulling out the fibers of the cloth toward a lower side of the cloth and protrusions for pulling out the fibers of the cloth toward an upper side of the cloth are provided on lateral surfaces of the needle.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a "temporary fastening device" that replaces a "pin" 16, which prevents "layered fabric, etc." (hereinafter simply referred to as "fabric") 11 from slipping and temporarily fastens the fabric when sewing stretchy fabric or appliqués with a sewing machine. [Background technology]

[0002] The sewing machine will be explained with reference to Fig. 10. Fig. 10(a) and (b) are a perspective view and a side view of the same part of the sewing machine, and the "fabric" 11 in Fig. 10(b) is clamped between the upper "presser foot" 8 and the lower "feed dog" 7, and sewed by intertwining it above and below with a thread passed through the "sewing needle" 10 in Fig. 10(a). Because of the structure of the machine, the "feed dog" 7 moves in a straight line, so straight line sewing is the basic method, but curved sewing is also possible.

[0003] To sew curved stitches, it is necessary to rotate the "fabric" 11 by hand in accordance with the linear motion of the "feed dog" 7, but this method causes misalignment between the top and bottom of the "fabric" 11 sandwiched between the "presser foot" 8 and the "feed dog" 7. For this reason, the current situation is that the top and bottom "fabric" 11 are temporarily secured with "pins" 16 to prevent misalignment, as shown in Figure 11. In particular, when the radius of the curved part is small, the misalignment becomes large, and the "pins" 16 must be used frequently.

[0004] It is possible to temporarily fasten the sewing thread with a "clip" (not shown) instead of the "pin" 16, but this is difficult to attach and remove, and is not suitable for sewing fine curves. On the other hand, the staplers in FIG. 12 and Patent Document 1 are used to fasten paper and the like, and are not used to fasten cloth.

[0005] Therefore, current sewing machines have the problem that auxiliary tools such as "pins" 16 and "clips" must be used to prevent the "fabric" 11 from slipping and to temporarily fasten it. This is a factor that reduces the operability and efficiency of the sewing machine. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 11-188658 Summary of the Invention [Problem to be solved by the invention]

[0007] When sewing "cloth" 11 with the sewing machine shown in Fig. 10(b), it is a very cumbersome task to raise and lower the "presser foot lifting lever" 9 linked to the "presser foot" 8 while holding the "cloth" 11 between the "feed dog" 7 and the "presser foot" 8 and removing the "pins" 16. For example, if 50 "pins" 16 are used, the "presser foot lifting lever" 9 must be operated 100 times.

[0008] In addition, when temporarily fastening the "cloth" 11 as shown in FIG. 11 using a "pin" 16, care must be taken in how and where the pin is inserted into the "cloth" 11, and there is a risk of injury to the hand if the "pin" 16 pierces the hand. Also, when sewing the "cloth" 11, there are issues such as the needle breaking due to the intersection of the "pin" 16 and the "sewing needle" 10, the "pin" 16 getting caught inside the sewing machine, and wear on the "feed dog" 7. [Means for solving the problem]

[0009] In order to solve the above problems, it is necessary to temporarily fasten the "cloth" 11 in a way that does not require the use of the "pin" 16 when sewing the "cloth" 11 with a sewing machine, and then to sew the "cloth" 11.

[0010] The present invention is a "temporary fastening device" comprising a "handle" 1 having a "needle" 5 attached thereto in Figure 4 and a "base" 3 connected to the "handle" 1 at its end and capable of rotating freely around the end as a rotation axis, in which a protrusion is provided on the "needle" 5.

[0011] The instrument further includes a "needle container" 6 that is disposed between the "handle" 1 and the "base" 3 and that contains the "needle" 5.

[0012] That is, as an alternative to temporarily fastening the "cloth" 11 with a "dressing pin" 16, Figures 1 to 4 show an example of a "temporary fastening device," Figure 6 shows the operating pattern for temporarily fastening the "cloth" 11 with the "temporary fastening device," and Figure 7 shows the situation in which the "cloth" 11 has been temporarily fastened with the "temporary fastening device."

[0013] Specifically, as shown in Figures 6 and 7, this "temporary fastening device" pulls the fibers of the upper fabric of "cloth" 11 toward the lower fabric and the fibers of the lower fabric toward the upper fabric, thereby enabling temporary fastening to prevent the upper and lower fabrics from shifting, in place of "gusset pins" 16. In other words, by simply temporarily fastening the outside of the "finished line" 17 shown in Figure 11 with the "temporary fastening device", it is possible to prevent the "cloth" 11 from shifting and achieve the temporary fastening effect, and then you can concentrate only on sewing. Effect of the Invention

[0014] According to the present invention, by providing a device that prevents "cloth" 11 from shifting when sewing with a sewing machine, the fibers of the lower cloth are pulled toward the upper cloth, and the fibers of the upper cloth are pulled toward the lower cloth, as shown in Fig. 7, so that "cloth" 11 can be temporarily fastened without using "marking pins" 16. This relieves the user from the troublesome task of raising and lowering the "presser foot lifting lever" 9 and removing the "marking pins" 16 while sewing, improving the efficiency of sewing work and preventing hand injuries and sewing machine breakdowns caused by the "marking pins" 16. In other words, this invention is expected to improve the quality and safety of sewing, as well as increase the value of sewing machines in industry. [Brief description of the drawings]

[0015] [Figure 1] FIG. 2 is a front view of the "temporary fastening device" of the present invention. [Diagram 2] FIG. [Diagram 3] 3 is a cross-sectional view of the "temporary fastening device" taken along line BB in FIG. 2. [Figure 4] 2 is a cross-sectional view of the "temporary fastening device" taken along line AA in FIG. 1. [Diagram 5]1 shows an example of a "needle" 5 of the "temporary fastening device" and an oblique view thereof, as well as an example of attaching the "needle" 5 to a "handle" 1 or a "needle fastener" 4. [Figure 6] This is an operation pattern for temporarily fastening the "cloth" 11 with the "temporary fastening device." [Figure 7] This shows the state in which the "cloth" 11 is temporarily fastened using the "temporary fastening device." [Figure 8] This is an embodiment in which a "needle" 5 is attached to a "handle" 1 using a "needle holder" 4, and its front view, plan view, and side view are shown. [Figure 9] FIG. 1(a) shows an embodiment in which the "needle" 5 is directly attached to the "handle" 1, and FIG. 1(b) shows an embodiment in which the front part of the "handle" 1 is processed into the "needle" 5. [Figure 10] 1 shows a part of a sewing machine. [Figure 11] This is a diagram showing "cloth" 11 being temporarily fastened with "pin" 16. [Figure 12] FIG. 11 is a cross-sectional view showing the configuration of a conventional stapler. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Staplers of the shape shown in Figure 12 have been known for some time, but the temporary fastening device provided by the present invention has a metal handle 1 pivotally attached to the rear of the staple container 6 in Figure 4, which has the same function as a metal handle 14 pivotally attached to the rear of the magazine 12 of a stapler.

[0017] The "temporary fastening device" of the present invention differs from a "stapler" in that a "stapler" works to clinch paper or the like by driving out U-shaped "staples" (not shown) stored in a metal "magazine" 12 with a "driver" 13 attached to the end of a metal "handle" 14, whereas the "temporary fastening device" works by penetrating "cloth" 11 sandwiched between a "staple container" 6 and a "base" 3 with a "needle" 5 attached to the end of the "handle" 1 as shown in Figures 4 and 6, and then pulling it up, thereby drawing the fibers of the upper fabric of "cloth" 11 to the lower fabric side and the fibers of the lower fabric to the upper fabric side, as shown in Figure 7.

[0018] The configuration of the "temporary fastening device" of the present invention is explained with reference to Figure 4. The three bodies, "handle" 1 to which "needle" 5 is attached from above, "needle housing" 6 and "base" 3, are joined at the rear end and the device can rotate freely around this end as an axis of rotation. "Leaf springs" 15 are attached between the "handle" 1, "needle housing" 6, and "base" 3, respectively, and when pressure is applied from above or below, the three bodies combine and return to their original state when pressure is released.

[0019] Figure 6 shows the movement pattern of the three bodies: "handle" 1, "needle housing" 6, and "base" 3. The "leaf spring" 15 between the "handle" 1, "needle housing" 6, and "base" 3 is selected so that the "needle housing" 6 first descends onto the "cloth" 11 on the "base" 3, and then the "handle" 1 with the "needle" 5 attached descends. The "leaf spring" 15 is shown as an example, and can be changed to a "coil spring" or the like.

[0020] The "temporary fastening device" provided by the present invention is characterized by the "needles" 5, and one or more "needles" 5 are used, an example of which is shown in Figure 5. The features of each "needle" 5 and the operation pattern when temporarily fastening the "cloth" 11 are explained below with reference to Figure 6.

[0021] When the "needle" 5 of the "temporary fastening device" shown in Figure 5(a) is used, the "needle" 5(a) attached to the end of the "handle" 1 is pressed down, pierces the "cloth" 11, and then is pulled up, causing the protrusions on both sides of the plate to pull the fibers of the lower cloth towards the upper cloth, thereby temporarily fastening the top and bottom of the "cloth" 11 together.

[0022] When the "needle" 5 of the "temporary fastening device" shown in Figure 5(b) is used, the "needle" 5 attached to the end of the "handle" 1 is pressed down to penetrate the "cloth" 11, and the protrusions on both sides of the plate pull the fibers of the upper cloth towards the lower cloth, temporarily fastening the top and bottom of the "cloth" 11 together.

[0023] When Figure 5(c) is used for the "needle" 5 of the "temporary fastening device," a single plate-like needle has a protrusion attached to the opposite side, and by penetrating the "cloth" 11 and then pulling it up, one protrusion has the role of drawing the fibers of the lower cloth toward the upper cloth, and the other protrusion has the role of drawing the fibers of the upper cloth toward the lower cloth, giving the single "needle" 5 the same function as Figures 5(a) and 5(b), and serving to temporarily fasten the top and bottom of the "cloth" 11.

[0024] It is also possible to make the "needle" 5 of the "temporary fastening device" cylindrical as shown in Figure 5(d) and attach an upward protrusion as shown in Figure 5(a) to the side of the needle and a downward protrusion as shown in Figure 5(b) at a position shifted horizontally from the protrusion in Figure 5(a), thereby temporarily fastening the top and bottom of the "cloth" 11.

[0025] As shown in Figures 5(e) and 5(f), the "needle" 5 of the "temporary fastening device" can be made cylindrical with a coating of abrasive grains like sandpaper on its surface, and by pushing down the "needle" 5 attached to the end of the "needle holder" 4 and pulling it up after it has penetrated the "cloth" 11, it is possible to pull the fibers of one "cloth" 11 toward the other "cloth" 11 and temporarily fasten it.

[0026] Also, it is possible to combine two or more of the needles shown in Fig. 5(a), (b), (c), (d), (e), and (f) into a single plate-like structure as shown in Fig. 5(g) and (i) in the "needle" 5 of the "temporary fastening device." Fig. 5(h) and (j) are perspective views of Fig. 5(g) and (i), and Fig. 5(k) and (l) are examples in which Fig. 5(g) and (i) are attached to a "handle" 1. A specific example is shown in Fig. 9(a).

[0027] 5(a), (b), (c), (d), (e), (f), etc. are attached to a "needle holder" 4. If each needle is made removable, it will be possible to replace each needle. A specific example of attaching each "needle" 5 to a "handle" 1 via a "needle holder" 4 is shown in FIG. 8.

[0028] When comparing the temporary fastening effect of various "needles" 5 attached to a "temporary fastening device" in a single action of penetrating the "cloth" 11 and then pulling it up, it goes without saying that the "needles" 5 as shown in Figures 5(g) and (i), which are formed by combining two or more of the same individual needles into an integrated unit, have a greater temporary fastening effect and require more work than the individual "needles" 5 as shown in Figures 5(a), (b), (c), (d), (e), and (f).

[0029] 8 shows a front view, a plan view and a side view of an embodiment in which the individual needles shown in Fig. 5(a), (b), (c), (d), (e), (f) etc. are fastened to the "handle" 1 via a "needle fastener" 4. Incidentally, the "needle fastener" 4 has a hole through which each "needle" 5 can be inserted from below, and the "needle" 5 inserted into the hole is fastened with a screw from the front of the "needle fastener" 4. Also, in this embodiment, the "needle fastener" 4 is fastened with a screw from above the "handle" 1, and the upper part of the "handle" 1 is fixed to the "handle cover" 2 shown in Fig. 4.

[0030] In Fig. 9(a), the front part of the "handle" 1 is bent into an L-shape, and its tip is processed into a "needle holder" 4, into which a plate-shaped "needle" 5 is inserted from below. In addition, in this embodiment, the "needle" 5 inserted from below into the processed "needle holder" 4 is fixed with a screw from the front of the "handle" 1 processed into the "needle holder" 4, and the upper part of the "handle" 1 is fixed to the "handle cover" 2 shown in Fig. 4. Incidentally, since the "needle" 5 is removable, it is possible to replace the "needle" 5 if it deteriorates.

[0031] Figure 9(b) shows an embodiment in which, without using a "needle fastener" 4, the front part of the "handle" 1 is bent into an L shape, its tip is processed into a plate-shaped "needle" 5, and the upper part is fixed to the "handle cover" 2 shown in Figure 4. In this case, the entire "handle" 1, including the needle part at the tip, may be made of the same material as long as a temporary fastening effect can be obtained for the needle at the tip, but if a temporary fastening effect cannot be obtained, it is also possible to change only the needle part at the tip to a more durable one (by heat treatment, etc.).

[0032] Regarding the thickness and strength of each "needle" 5, since a thick "needle" 5 is likely to damage the fabric, the thinner the better as long as it is possible to pull out the fibers of the fabric, and the strength of the needle should be such that it is less likely to break and deteriorate.

[0033] 1 to 4, 6 and 9(a) show an embodiment of the "temporary fastening device" 4 using the "needle" 5 shown in FIG. 5(g). [Industrial Applicability]

[0034] In recent years, the popularity of handmade items has increased, and more people are selling their own creations over the Internet. Among these, sewing machines are one of the important tools, and they have a significant impact on sewing skills and efficiency. This invention improves the operability and functionality of sewing machines, thereby improving the quality and speed of sewing, and we believe that users of sewing machines will be able to create more works and obtain economic benefits. We believe that the sewing machine market will also expand further worldwide, greatly contributing to the growth of the industry. [Explanation of symbols]

[0035] 1 Handle 2 Steering wheel cover 3 Pedestal 4 Needle Clamp 5 needles (5A~5K) 6 Needle holder 7 Feed dog 8 Presser 9 Presser foot lifting lever 10 Sewing Needles 11 Layered cloth, etc. (read as cloth) 12 Magazine 13 Drivers 14 Handle (stapler) 15 Leaf spring 16 Sewing pins 17 Finished Line

Claims

1. The temporary fastening device comprises a handle (1) having a needle (5) attached thereto and a base (3) which is connected to the handle (1) at an end and can rotate freely around the end as a rotation axis, and the needle (5) is provided with a protrusion.

2. 2. The temporary fastening device according to claim 1, further comprising a needle housing (6) disposed between the handle (1) and the base (3) and housing the needle (5).

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