JPS6243714B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for sewing fasteners such as hooks onto predetermined positions of waist belts of skirts and pants using a sewing machine.

[Conventional technology]

Generally, as shown in FIG. 1, for example, fasteners 2 such as hooks or clasps are attached to both ends 1a and 1b of a waist belt 1 of a skirt, which overlap each other.

Conventionally, the method of attaching the stopper 2 to the waist belt 1 is to fold the belt material 5 in half, wrap the rigid belt core 6 therein, and finish sewing the waist belt 1. Fasteners 2, 2 were sewn onto 1a, 1b using a sewing machine.

[Problem that the invention seeks to solve]

However, while the conventional method makes it easy to set the sewing location of the stopper 2, the sewing thread 4 is exposed on the surface of the waist belt 1, spoiling the appearance. Therefore, there is a method of blind stitching so that the sewing thread 4 is not exposed, but this can only be done by hand sewing, and machine sewing is not possible.

Therefore, in order to sew the fastener 2 to the waist belt 1 by machine sewing without exposing the sewing thread, the present inventor has developed a method for sewing the fastener 2 onto the waist belt 1 by machine sewing, as shown in FIG. We investigated whether it would be possible to sew the stopper 2 at a specified position using a sewing machine while the waist belt 1 is in the unfolded state. However, when the waist belt 1 is in the unfolded state, the stopper 2 must be sewn onto the belt-like belt material 5, but the stopper 2 must be correctly positioned and sewn at a specified position on the belt-like material 5. I realized that it was difficult. That is, when determining the position, for example, it is necessary to mark a predetermined distance from the end of the strip-shaped belt material 5 with a tie yoke or the like, and then perform sewing with the stopper 2 placed at the marked point. This is because it is difficult to position the belt material 5 itself on the sewing machine table surface. Therefore, this improvement also applies to the stop 2.
I learned that not only does it require a great deal of skill to accurately locate the sewing position, but also that the sewing process requires a great deal of effort and time.

[Purpose of the invention]

However, when the belt-like belt core 6 is superimposed and integrated in parallel with the belt-like belt fabric 5 in the longitudinal direction thereof, that is, in the unfolded state before the waist belt 1 is sewn and finished, the belt-like belt fabric 5 is stopped at a specified position. The method of machine sewing the tool 2 is effective because the sewing thread 4 is not exposed and machine sewing is possible.

Therefore, an object of the present invention is to follow this basic method and make it possible to machine sew the stopper 2 so that the sewing thread 4 is not exposed.

In addition, it is an object of the present invention to reliably position the unfolded waist belt 1 on the sewing machine table surface, and to easily and reliably sew the stopper 2 at a prescribed position on the belt-like belt material 5. The purpose is to improve the efficiency of sewing machine sewing work.

[Means for solving problems]

In the present invention, a semi-finished product of the waist belt 1 is prepared in advance, in which a belt core 6 is superimposed and integrated in parallel on a belt material 5 in the longitudinal direction thereof. At this stage, as shown in FIG.
In this case, the belt core 6 is not wrapped, and the waist belt 1 is in the unfolded state.

Then, the belt-shaped belt core 6 is attached to the belt-shaped belt fabric 5.
Taking advantage of the fact that the waist belt 1 is more rigid than the sewing machine table surface 18, the waist belt 1 is guided onto the sewing machine table surface 18, and one longitudinal edge 6a of the belt core 6 is placed on the sewing machine table surface 18 as shown in FIG. At the same time, one end edge 6b of the belt core 6 in the width direction perpendicular to the one end edge 6a is brought into contact with the width direction position regulating part B provided on the sewing machine table surface 18. With this, the belt-like belt 6 is positioned on the sewing machine table surface 18 in the longitudinal direction and the width direction.

Next, the stopper 2 is supplied to a specified position of the belt-like belt fabric 5 positioned via the belt-like belt core 6, and sewing is performed by machine.

〔Effect of the invention〕

According to the present invention as described above, the waist belt 1 consisting of the belt-like belt material 5 and the belt-like belt core 6 is guided onto the sewing machine table surface 18, and the belt-like belt core 6 has a stiffness higher than that of the belt-like belt material 5. Taking advantage of the fact that the strip-shaped belt core 6 has one end edge 6a in the longitudinal direction against the longitudinal position regulating portion A on the sewing machine table surface 18, one end in the width direction of the belt core 6 perpendicular to the one end edge 6a By abutting the edge 6b against the widthwise position regulating portion B on the sewing machine table surface 18, first, the sewing machine table surface 18
In the above, the belt core 6 and therefore the belt fabric 5 are automatically positioned and supported. Therefore, the stopper 2 can be reliably positioned and supplied to the specified position on the belt-like belt material 5, and there is an advantage that the work of fastening the stopper 2 by sewing with a sewing machine can be performed with high precision and efficiency. Moreover, the sewing thread 4 when the fastener 2 is machine-sewn on the waist belt 1 thus obtained is not exposed to the outside, resulting in a good appearance.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

Figure 2 shows the unfolded state of the waist belt 1 before it is sewn and finished; 5 is a left and right oblong belt material; 6 is a left and right oblong belt material that is narrower and more rigid than the belt material 5; It is the core. In this state, the waist belt 1 has a strip-shaped belt core 6 overlaid in parallel with one side edge in the width direction of the strip-shaped belt fabric 5 over the longitudinal direction thereof, and the stopper 2 is attached to the strip-shaped belt fabric 5. Specified end position P
I expect it to be sewn on. The stopper 2
The sewing position P is set at a predetermined distance a from one end edge 6a of the belt core 6 in the longitudinal direction, and at a predetermined distance b from one end edge 6b in the width direction perpendicular to the one end edge 6a in the longitudinal direction.

Incidentally, since the band-shaped belt core 6 is made of a material having rigidity, it not only functions to maintain the shape of the waist belt 1 but also becomes a factor in determining the length and width of the waist belt 1.

3 to 5 show a jig used to machine-sew the stopper 2 at the sewing position P of the strip-shaped belt fabric 5. As shown in FIGS.

This jig 3 has a base plate 7 in which a sewing machine needle passage hole 8 is formed vertically and vertically in the approximate center.
Sewing grooves 9a, 9b, 9c on the top side of the sewing machine needle hole 8
They are located above and in front and behind this.
Each of the grooves 9a, 9b, and 9c is open on the upper and left sides, and has an inverted T-shaped cross section in which the width H of the lower groove is larger than that of the upper groove.

A padding cloth 21, which will be described later, is inserted into the central groove 9a from the left side. The belt-shaped belt core 6 is inserted from the left side into the front groove 9c from one longitudinal end edge 6a thereof. The groove 9b on the rear side is preliminary and is used to allow the belt core 6 to be similarly inserted from the left side in place of the groove 9c on the front side.

The inner end on the right side of the groove 9c on the front side is set to a longitudinal position regulating portion A that is in contact with one longitudinal end edge 6a on the insertion side of the belt-shaped belt core 6. Further, the groove width H at the bottom of the front groove 9c is set to be almost the same as the width of the belt core 6, and the groove 9c
The front and rear ends of the lower part of the band-shaped belt core 6 are inserted into a widthwise end edge 6 that is perpendicular to one longitudinal end edge 6a on the side where the belt core 6 is inserted.
b, 6b are set in the width direction position regulating portions B, B that come into contact with each other. Note that the rear groove 9b also has a longitudinal position restriction part A and width direction position restriction parts B, B similar to the front groove 9c.

The sewing machine needle passage hole 8 is located at the above-mentioned distance b from the widthwise position regulating section B on the rear side of the lower part of the groove 9c on the front side, and at the above-mentioned distance a from the longitudinal direction position regulating section A to the left. It is located at the location where you placed it.

The specific means for forming the grooves 9a, 9b, and 9c will be explained with reference to FIGS. 4 and 5. Notches 12a, which are shorter than the length of the base plate 7 in the left-right direction and have the same shape at the center and front and back of the left edge; A comb-shaped transparent upper plate 13 having 12b and 12c, and each cutout 12a, 12b, 12 of the upper plate 13 that is approximately the same shape as this upper plate 13.
Notch 1 with a front-to-back width slightly larger than the front-to-back width of c
4a, 14b, and 14c are prepared. Then, by overlapping the upper plate 13 integrally with the spacer 15 on the upper surface side of the base plate 7, the grooves 9a, 9b are formed on the upper surface side of the base plate 7.
9c was formed.

A mounting bracket 16 is formed extending from the base plate 7 on the right side of the fastener sewing jig 3 constructed as described above, and as shown in FIG. It is fixed to the top to support the jig 3 in a horizontal position, and is attached so that the sewing machine needle passage hole 8 is aligned with the position directly below the sewing machine needle 19.

In this sewing machine 17, below the sewing machine needle 19 is a holder 20a that removably holds the stopper 2.
is held by a vertically movable arm 10 so as to be vertically movable.

Thus, the stopper 2 will be sewn by machine. To do this, first, as shown in FIG. 6, the belt core 6 is inserted from one longitudinal end a side of the belt core 6 to the left side into the groove 9c on the front side so that the belt material 5 is above the upper plate 13 of the jig 3. Insert more horizontally. At this time, while the widthwise edges 6b, 6b of the belt core 6 are brought into sliding contact with the widthwise position regulating parts B, B, the belt core 6 is completely inserted until one longitudinal end edge 6a abuts against the longitudinal position regulating part A. Now the belt core 6
is positioned and supported on the sewing machine table surface 18,
Along with this, the belt-like belt fabric 5 that is positioned in the same way exists above the sewing machine needle hole 8, and the part of the belt-like belt fabric 5 located directly above the sewing machine needle hole 8 is used to sew the stopper 2. The power position is P.

Next, when the vertically movable arm 20 is lowered, the stopper 2 held in the holder 20a at the tip thereof is supplied to the place where the stopper is sewn on the strip-shaped belt fabric 5,
The sewing machine needle 19 passes through the sewing parts 2a, 2b, and 2c of the fastener 2 in sequence to sew the parts. That time stopper 2
In order to ensure that the sewing machine is sewn securely, as shown in FIGS. 6 and 8, a covering cloth 21 made of a scrap of the belt core 6 or the like is placed in the groove 9a above the sewing machine needle hole 8 before sewing. What is necessary is just to insert it and apply it to the lower surface side of the strip-shaped belt fabric 5, and to sew the stopper 2 to the strip-shaped belt fabric 5 together with the patch cloth 21. However, it goes without saying that the padding cloth 21 is not necessary when the belt material 5 is thick.

After sewing the stopper 2, the vertically movable arm 20 is moved upward, and the belt core 6 along with the belt fabric 5 is pulled out laterally from the groove 9c of the jig 3.

The waist belt 1 with the fasteners 2 sewn in this way is made by folding the belt-like belt fabric 5 in parallel in half along its longitudinal direction to wrap around the belt-like belt core 6 as before, as shown in FIG. The sewing thread 4 of the fastener 2 is hidden inside the strip-like belt fabric 5 and is not exposed on its surface. After that, the first
A waist belt 1 shown in FIG. 1 is sewn onto a skirt.

In addition, in the jig 3, the groove 9a formed above the sewing machine needle passage hole 8 is for inserting the patch cloth 21 when it is used, as described above. The groove 9b formed on the rear side can also be applied to the case where the other side edge in the width direction of the belt-like belt material 5 is overlaid and integrated with the belt-like belt core 6, contrary to the above embodiment. It is for this purpose.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating a skirt with fasteners sewn by a conventional method. FIG. 2 is an exploded perspective view of a waist belt with a fastener sewn by the method of the present invention, and FIG. 3 is a plan view showing an example of a jig for sewing a fastener used in carrying out the method of the present invention.
4 is a sectional view taken along the line -- in FIG. 3, FIG. 5 is an exploded perspective view of the jig, and FIG. 6 is a diagram showing one longitudinal end of the belt core of the waist belt inserted into the jig. A plan view, FIG. 7 is a perspective view of the jig attached to the sewing machine, FIG. 8 is an enlarged sectional view taken along the - line in FIG. 6, and FIG. 9 is a perspective view of the stopper holder that supplies the stopper. 10 is a sectional view of a waist belt with the fastener sewn on, and FIG. 11 is a partial perspective view of the waist belt obtained by the method of the present invention sewn onto a skirt. 1... Waist belt, 2... Stopper, 5...
Band-shaped belt fabric, 6... Band-shaped belt core, 8... Sewing machine needle hole, 9c... Groove, A... Longitudinal position regulating part, B... Width direction position regulating part, 17... Sewing machine,
18... Sewing machine table surface, 19... Sewing machine needle.

Claims (1)

[Scope of Claims] 1. A belt-shaped belt core 6, which has been previously superimposed and integrated with the belt-shaped belt fabric 5 in parallel in the longitudinal direction thereof, is guided onto the sewing machine table surface 18, and one longitudinal end edge 6a of the belt-shaped belt core 6 is guided onto the sewing machine table surface 18. A longitudinal position regulating portion A provided on the sewing machine table surface 18
At the same time, one end edge 6b of the belt-shaped belt core 6 in the width direction perpendicular to the one end edge 6a is brought into contact with the width-direction position regulating part B provided on the sewing machine table surface 18. A method for sewing a stopper to a waist belt, which comprises: positioning the belt 6 in the longitudinal direction and the width direction; supplying the stopper 2 to a specified position on the belt-like belt fabric 5; and sewing with a sewing machine.