JPH0345929Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is made by combining two pocket cloths and sewing piping tape to the parts other than the opening, that is, the bottom and sides. This relates to the piping pocket that constitutes the.

(Prior Art) Conventionally, as shown in FIG. 5, this type of piping pocket is made by folding a piping tape made of one piece of bias cloth into four, that is, by folding the piping tape made of a single piece of bias cloth in four, that is, by folding both ends (R) inward as shown in the figure. Fold it back, then fold the center part in half, insert two layers of pocket cloth (C, D) into the folded part, and attach piping tape (1) and pocket cloth (C, D) at the inward folded part.
The two are sewn together. In addition, other parts are sewn for reinforcement as necessary. The reason why both ends of the piping tape A are folded inward and sewn together is that the ends of both ends A of the piping tape A, which are made of bias fabric, are turned up. This is to prevent it from becoming loose or fraying.

(Problems to be Solved by the Invention) However, such conventional techniques have the following problems.

That is, first, the required length increases by folding back both ends of the piping tape inward. Moreover, since one piece of bias cloth is folded into four, it tends to get twisted or twisted when sewing. Therefore, a separate ironing process was required after sewing. Furthermore, the bias cloth that makes up the piping tape usually has uneven vertical and horizontal markings, so it is already prone to twisting when folded into four. After sewing, the area around the pocket bag was made up of six layers, so it was thick and easy to fit when the product was finished.

The problem then becomes how to provide a piping pocket that solves these problems.
If the piping tape is simply folded in two to reduce the thickness, the edges on both sides will curl up, fray, and the corners of both edges will cause a tingling sensation when they come into contact with the body. is not a solution.

(Means for Solving the Problems) This invention was made in view of the above points, and the piping tape is bent into two folds to solve the above-mentioned problems caused by the conventional four-fold structure. In addition, tensioning is applied between the sewn portion and both ends of the piping tape, and the ends are cut diagonally to solve the above-mentioned drawbacks associated with adopting the two-fold structure. It is something.

Regarding the specific structure adopted by this invention, in a pocket bag in which piping tape is sewn to the edges other than the opening to match the two pocket cloths, the piping tape is folded in two, and the Cut both sides of the piping tape so that its longitudinal section is oblique, exposing the slope to the surface, and insert the piping tape between the part sewn to the pocket fabric and the ends of both sides of the piping tape. It is characterized by having been subjected to tension processing. Tension processing here refers to a processing process that gives tension to both ends of the piping tape, such as fusing using high frequency, fusing using high temperature or high pressure, or using other appropriate threads, fabrics, or This can also be achieved by pasting a thin film or the like.
The processing may be discontinuous by providing protrusions, depressions, etc. at regular intervals, or continuous such as a linear waveform.

(Function) Since the piping tape has a two-fold structure, it is naturally thinner than the conventional four-fold structure. Also, since both ears of the piping tape are cut so that the longitudinal section is oblique and the slopes are exposed on the surface, the parts that come into contact with the body, that is, the corners of the ends of both ears of the piping tape, are cut at an angle. becomes a larger angle (obtuse angle) than a right angle. Further, due to such cutting, the piping tape becomes thinner toward the tips of both ear ends, making it easier for the piping tape to come into contact with the pocket cloth. If tension processing is applied, "tension" will be created at both ends of the piping tape,
It's something that never goes away.

(Embodiment) An embodiment of this invention will be described below with reference to the drawings. Figs. 1 and 2 show a piping pocket according to the embodiment, and numerals 1 and 2 are pocket cloths constituting the pocket bag. Then, the ends of the pocket cloths 1 and 2, that is, the ends other than the part that will become the opening, are inserted into the bent part of the piping tape 3, which is folded in two into a substantially belt-like shape, and the two are sewn together with the sewing thread 4. It has been done.

Both ends 3a and 3b of this piping tape 3
As shown in the figures, each of these is cut so that the vertical cross section thereof is oblique, and the slope formed by such cutting is exposed on the surface of each of them.
Furthermore, in this embodiment, special treatment is applied to the slope to completely prevent fraying of the edges. That is, high frequency treatment or silicon coating is applied to the surface of the slope to completely prevent it from fraying.
Note that although such processing is performed after cutting, the processing effect is not limited to this, and such processing effects can be achieved at the same time by cutting diagonally by heat cutting.

On the surface of the piping tape 3 between the sewing thread 4 and the end portions 3a and 3b of both ears, there is a recess 5 formed by the high-pitched and high-pressure tensioning process. Note that 6 is another sewing thread for reinforcement.

Further, the tensioning process is not limited to this, and as shown in FIG. 4, an appropriate thread 7 may be attached. Furthermore, the planar shape of the tension processing is not only the long ellipse shape as in the example, but also round, square, rectangular, cross shape,
Other patterns such as floral patterns can be applied at regular intervals, or straight lines, waves, etc. can be formed continuously to create a decorative effect as needed. It is something.

By applying such a tensioning process, the ends 3a and 3b of the piping tape 3 will not be rolled up. Moreover, if such a processing treatment is performed on both ear ends 3a and 3b, fraying of the thread can also be prevented. Moreover, the ends of both ears 3a, 3
Since b is a slope, the part that contacts the body has an obtuse angle, which does not give a prickly feeling compared to a sharp corner at a right angle that occurs in normal vertical cutting.

Overall, the thickness of the edge of the pocket bag is 4
It is thinner than the conventional 6-layer structure, and does not cause twisting or twisting, so there is no need for ironing after sewing.

(Effects of the invention) According to this invention, the piping pocket is thinner than the conventional piping pocket that uses piping tape folded into four, does not warp or twist, and does not require ironing. Moreover, since both ends of the piping tape are cut diagonally, the corners of the piping tape that come into contact with the body are at least obtuse, which is preferable because it does not give the wearer a tingling sensation.

Furthermore, the areas near the ends of both ears are tensioned so there is tension and will not roll up or fray, eliminating the traditional drawbacks associated with using bi-folded piping tape. It is something.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of the embodiment, Fig. 2 is a plan view thereof, Fig. 3 is a side sectional view of the same main part, Fig. 4 is a side sectional view of the main part showing another tensioning process, and Fig. 5 is a side sectional view of the main part. It is a side sectional view of a prior art. In the figure, 1 and 2 are pocket cloths, 3 is piping tape, 4 and 6 are sewing threads, and 7 is thread.

Claims (1)

[Scope of utility model registration request] In a pocket bag in which two pieces of pocket cloth are put together and piping tape is sewn to the end other than the opening, the piping tape is folded in two, and the longitudinal section of both ears of the piping tape is oblique. A piping pocket, which is cut in such a manner that the slope is exposed on the surface, and tension processing is applied between the sewn part of the piping tape and the pocket cloth and the ends of both ears.