JP2010017259A - Sewn cloth and slide fastener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sewn cloth being novel in design, and preventing the opening of a sewn part and the exposure of a base tape by closing fabrics cut into a curved shape with a slide fastener. <P>SOLUTION: Body fabrics 27 are closed by the slide fastener 25 into a sewn cloth. The fastener used is a hidden slide fastener where the base tapes 28 for locking stringers 26 are turned up and facingly overlapped with the stringer into a U-shape, and engagement elements 23 of the stringers are projecting outward the folds 33 of the turned-up base tapes. The cut fabric is turned up and the body fabric 27 and a seam allowance 34 are made to face each other into a U-shape. The seam allowance and the base tape are clamped between the body fabric and the stringer, the end edge 37 of the seam allowance and the side edge 29 of the base tape are superposed, the fold 71 of the fabric and the fold 33 of the base tape are superposed, and the cut fabric and the fastener are sewn between the seam allowance and the base tape with a sewing machine stitch 35. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cut end of a cut fabric (hereinafter referred to as “sewing fabric”) (hereinafter referred to as “sewing fabric”) (hereinafter referred to as “sewing fabric”). , "End edge"), and a sewing fabric that is finished by closing a pair of cut fabric and cut fabric via the slide fastener.

  As a slide fastener, a general general-purpose slide in which a meshing element 23 is projected to the outside of a side edge of a flat base tape 28 and a stringer 26 called “service tooth / musi” is fixed along the side edge of the base tape 28. A fastener 10 (see FIG. 7a) and a hidden slide fastener 25 (see FIG. 7b) in which a meshing element protrudes outward from a fold 33 of a base tape 28 that is folded back and overlaps a stringer 26 are known (for example, Patent Document 1). , 2, 3).

  A cut fabric stitching margin 34 is provided at the edge portion of the cut fabric, the cut fabric is folded back at the cut fabric stitch allowance 34, the fold 71 is aligned in parallel with the stringer 26, and the cut fabric stitch allowance 34 is overlapped with the base tape 28. The slide fastener 25 is stitched to the cut main body fabric 27 by the perforated thread 35.

Regardless of which slide fastener 10 or 25 is used, in the conventional sewing technique, the stringer 26 and the base tape 28 are exposed at the closed portion of the pair of cut main body fabric 27a and the cut main body fabric 27b. In addition, the aesthetic appearance of the sewing fabric is impaired by the exposed slide fasteners 10 and 25.
For example, in the general-purpose slide fastener 10, the width of the cut fabric seam allowance 34 is set wide, and the cut fabric seam allowance 34 protrudes from the perforated thread 35 so that the fold 71 of the cut main body fabric 27 overlaps the meshing element 23. Even if the stringer 26 can be obscured by the projecting wide cut fabric stitch 34 (see FIG. 7a), the wide cut fabric stitch 34 is warped because the cut fabric stitch margin 34 is wide. 26 is exposed.
In the hidden slide fastener 25, the base tape 28 that locks the stringer 26 is folded back, and the stringer 26 is covered even if the stringer 26 is not exposed by the base tape 28 that faces the fold 33. The base tape 28 is exposed on the front side of the sewing fabric (see FIG. 7b).

Of course, the slide fastener can be sewn to the cut main body fabric 27 with the fold 71 bent (see FIG. 8).
However, when the folds 71a and 71b of the pair of cut main body fabrics 27a and 27b are abutted and in close contact with each other, the pair of the cut main body fabrics 27a and 27b may be closed via a slide fastener. I can't.
The reason is as follows.

That is, as shown in FIG. 9a, the sewing thread 35a and 35b for sewing the slide fasteners 10a and 10b and the cut main body fabrics 27a and 27b are separated from the stringers 26a and 26b so that the sewing needle does not hit the stringers 26a and 26b. Sewn into the distant part.
When the folds 71a and 71b of the pair of cut main body fabrics 27a and 27b have the same asymmetrical curved shape, the curvature radius Ra from the curvature center 73 of the curve to the perforated thread 35a of one of the cut main body fabrics 27a and Due to the difference ΔR from the curvature radius Rb from the curvature center 73 to the perforation line 35b of the other cut main body fabric 27b, the slide fastener 10a stitched to the one cut main body fabric 27a and the other cut main body A difference in the length of the slide fastener 10b sewn to the fabric 27b occurs.
This is because, due to the difference in length between the slide fasteners 10a and 10b, the meshing elements do not mesh.

  A pair of slides caused by a difference ΔR between a curvature radius Ra from the curvature center 73 of the curved line to the perforated line 35a of one cut main body fabric 27a and a curvature radius Rb of the other cut main body fabric 27b to the perforated line 35b. As a method of eliminating the difference in the length of the fastener, a method of intermittently cutting the side edges of the base tape of the slide fastener (see, for example, Patent Documents 4 and 5), or a solvent-swellable fiber capable of deforming the base tape There is known a method of forming a curved shape and transforming it into a curved shape (for example, see Patent Document 6).

When the folds 71a and 71b of the pair of cut main body fabrics 27a and 27b have the same symmetrical shape that cannot be abutted with each other, the slide fasteners 10a and 10b sewn to the cut main body fabrics 27a and 27b. Therefore, even if the closed portion is raised or recessed, the engagement elements can be engaged with each other (see FIG. 8).
However, the closed portions of the pair of cut main body fabrics 27a and 27b in which the folds 71a and 72b form a symmetric shape are straight and do not exhibit a special aesthetic appearance, and are not a design element for the design of the sewing fabric. This is an obstacle to the design design of the sewing fabric.

JP 2003-180411 A JP 2003-210212 A JP 2004-195046 A Japanese Utility Model Publication No. 50-041704 Japanese Utility Model Publication No. 06-064509 Japanese Patent Laid-Open No. 02-104303 (Japanese Patent Publication No. 07-059205)

As a method of stitching the slide fastener to the folded edge of the bent cut fabric, as shown in Patent Documents 4 and 5, the side edge of the base tape is intermittently cut, or as shown in Patent Document 6. As can be seen, even though it is known to bend the slide fastener using a deformable solvent swellable fiber for the base tape, such a slide fastener is not versatile and is not suitable for the folding edge of the cut fabric. Cuts should be made intermittently on the base tape according to the curve, or the base tape must be prepared one by one using special fibers.
Even if such a special slide fastener can be prepared, a special skill is required to sew it in accordance with the wrinkle curve of the folding edge of the cut fabric, which cannot be easily performed.

  Therefore, the present invention is configured to sew the hidden slide fastener in accordance with the fold curve of the folding edge of the cut fabric cut into a curved shape, and there is a closing portion between the cut fabric and the cut fabric that are closed together via the hidden slide fastener. Draw a curve, the closed part is covered with the folding edge of the cut fabric, the stringer is not exposed, and there is no opening between the cut fabric and the cut fabric that are closed together at the closed location, and the cut fabric and the cut fabric An object is to obtain a new sewing fabric in terms of design in which stringers and base tape are not exposed between the fabrics.

  In order to eliminate the difference between the lengths of the pair of base tapes 28a and 28b caused by the difference ΔR between the curvature radii Ra and Rb of the slide fastener 25 that is sewn to the asymmetrical curved cutting body fabrics 27a and 27b. It has been properly considered to provide inflection points on the curves drawn by the folds 71a and 71b of the pair of cut main body fabrics 27a and 27b facing each other at the closing portion 36.

This is because when the closing point draws a curve, the side edges of the base tape and the perforated line draw a curve parallel to the curve at the closing point, respectively. The curves on the side edges and the perforated lines are also inflected.
Even if the continuous length of the perforated line on one side of the pair of cut fabrics facing the curve is longer than the continuous length of the perforated line on the other side of the cut fabric, The difference in length between the stitches and the perforated line is reversed when the inflection point is exceeded, and the length of the perforated line on one side of the cut fabric facing the curve is the continuous length of the perforated line on the other side of the cut It becomes shorter than the length.
This also applies to the side edge of the base tape. Between the adjacent inflection points, the side edge of the base tape that is far from the center of curvature is close to the center of curvature. The base tape side edge near the center of curvature is more than the side edge of the base tape away from the center of curvature between other inflection points beyond any of the inflection points. Shorter.
As a result, if the curve drawn by the closing portion is inflected, the length of the base tape sewn to one of the cut fabrics to be closed is equal to the length of the base tape sewn to the other cut fabric. This is because the continuous length of the perforated line of one cut fabric is the same as the continuous length of the perforated line of the other cut fabric.

  Further, in order to eliminate the difference ΔR between the curvature radii Ra and Rb of the slide fastener 25 that is sewn to the asymmetrical curved main body fabric 27a and 27b, the perforated thread 35 of the base tape 28 and the cut main body fabric 27 is sewn. The distance r from the meshing element 23 may be reduced as much as possible. For this purpose, the base tape 28 is not a general-purpose slide fastener 10 joined to the rear end of the stringer 26, but a base tape 28 as shown in FIG. It seemed appropriate to use a hidden slide fastener 25 that was joined and folded back to the tip of a stringer 26 in close proximity to the mating element 23.

  And, in order to prevent the opening of the cut portion between the cut fabric and the cut fabric closed together by the hidden slide fastener 25, the distance r from the meshing element 23 to the perforated thread 35 is made as small as possible, It seemed appropriate to make the distance t from the perforation line 35 to the side edge 29 of the base tape as small as possible.

This is because, when the width p of the base tape 28 is wide, as described in Patent Documents 4 to 6, the curve of the cut main body fabric 27 in which the slide fastener 25 is bent by cutting the base tape 28 or the like. In the case of the hidden slide fastener 25, as shown in FIG. 10, the cutting fabric sewing margin and the base tape are engaged to protrude the outer side of the cutting body fabric 27 as shown in FIG. When the element 23 is inverted 180 degrees, the perforated portion 98 of the bulging portion 98 where the edge of the cut fabric bulges exceeds the stringer 26 by about twice the distance k from the stringer 26 to the perforated line 35a. Accordingly, the perforated thread 35a ′ that is inverted by 180 degrees is contracted, and the length Sa ′ is 180 degrees. Than the length Sa of the previous original sewing fine line 35a to rolling so that to become shorter in accordance with the curvature of the bulge portion 98.
On the contrary, when the perforated thread 35 in the recessed portion 99 where the edge of the cut fabric is recessed is reversed 180 degrees around the engagement element 23, the direction away from the center of curvature 73B of the recessed portion 99 is obtained. Therefore, the length Sb ′ of the perforated thread 35b ′ reversed by 180 degrees is equal to the length of the original perforated line 35b, because it moves by twice the distance k from the stringer 26 to the perforated line 35b. It should be elongated and lengthened according to the curvature of the recessed portion 99 rather than the length Sb.
However, in practice, the perforated line 35 is sewn to the cut main body fabric 27 and the base tape 28 and does not expand and contract. The perforated line 35 to be reduced is not reduced, and the perforated line 35 to be extended. Therefore, when the cut fabric sewing margin and the base tape are reversed 180 degrees around the meshing element 23, the opening and wrinkle are likely to occur at the closed portion.

Therefore, in order to avoid the opening and wrinkling at the closed portion, the distance r from the meshing element 23 to the perforated thread 35 is made as small as possible. It is not necessarily avoided, and it is important to reduce the distance r from the meshing element 23 to the perforated line 35 as much as possible and to reduce the distance t from the perforated line 35 to the side edge 29 of the base tape as much as possible.
This is because, in the case of the hidden slide fastener 25, the cutting fabric sewing allowance and the base tape are inverted 180 degrees around the meshing element 23 in order to protrude the meshing element 23 to the outside of the cutting body fabric 27. As shown in the drawing, the side edge 29a of the base tape in the bulging portion 98 where the edge of the cut fabric bulges is twice the distance t from the side edge 29a to the perforated line 35 when it is inverted 180 degrees. It moves beyond the perforated line 35 by the amount (2t), moves in a direction approaching the center of curvature 73A of the bulging portion 98, its side edge 29a 'reversed 180 degrees and its length La' reversed 180 degrees The length La should be shorter than the length La of the original side edge 29a before the bulging portion 98 according to the curvature.
On the contrary, the side edge 29b of the base tape in the recessed portion 99 where the edge of the cut fabric is recessed is perforated in a direction away from the center of curvature 73B of the recessed portion 99 when it is turned 180 degrees. 35, the length Lb ′ of the side edge 29b ′ inverted by 180 degrees is the length of the original side edge 29b. It should be extended and lengthened according to the curvature of the recessed part 99 rather than Lb.
However, the base tape 28 is a member that locks the stringer 26 and keeps the distance between the stringers 26 constant, and is closely woven and knitted so as not to expand and contract.
Therefore, when the base tape 28 is inverted 180 degrees around the meshing element 23, the length La of the side edge 29a of the base tape of the recessed portion 99 to be reduced is not reduced, and the recessed portion 99 to be extended. Since the length Lb of the side edge 29b of the base tape is not extended, the opening or wrinkle is generated at the closed portion.

Therefore, in order to avoid the opening and wobbling at the closed portion, the distance r from the meshing element 23 to the perforated line 35 is made as small as possible, and the distance t from the perforated line 35 to the side edge 29 of the base tape. It is important to make it as small as possible.
The present invention has been completed based on these findings.

  The sewing fabric according to the present invention includes (a) a pair of cut main body fabrics 27a and cut main body fabrics 27b that are closed by a slide fastener 25. (b) The slide fastener 25 includes a base tape 28 that locks the stringer 26. The base tape 28 and the stringer 26 face each other in a U-shape and overlap each other, and the stringer engagement element 23 is a hidden slide fastener protruding outside the fold 33 of the folded base tape. Yes, (c) The edge side (37) of the cut body fabric 27 is folded back to the cut fabric sewing margin 34, and the folded cut fabric stitch margin 34 and the cut body fabric 27 face each other in a U-shape. (D) The cut main body fabric 27 and the slide fastener 25 are (d1) the cut fabric sewing margin 3 4 and the base tape 28 are sandwiched between the cutting body fabric 27 and the stringer 26, (d2) the edge 37 of the cutting fabric sewing margin and the side edge 29 of the base tape are overlapped, and (d3) the cutting body The crease 71 between the fabric and the cut fabric seam allowance, and the crease 33 between the stringer and the base tape are overlapped and stitched by the perforated thread 35. (e) The width q of the stringer 26 of the slide fastener is 5 mm or less. Yes, (f) The width p of the base tape 28 is 5 mm or less, and the difference between the width p of the base tape 28 and the width q of the stringer 26 is 2 mm or less. (G) From the stringer engagement element 23 to the perforated line 35 The first feature is that the distance r is shorter than the width q of the stringer 26.

  The second feature of the sewing fabric according to the present invention is that, in addition to the first feature, (h) the closed portions 36 of the pair of cut main body fabrics 27a and 27b are arranged in the length direction of the slide fastener 25. (I) The folds 71a and 71b of the pair of cut main body fabrics 27a and 27b that are closed together form a left-right asymmetrical curve with the closing point 36 as a boundary, and (j) closing The curve drawn by the portion 36 is at a point having an inflection point 70 at which the inflection occurs.

  A third feature of the sewing fabric according to the present invention is that, in addition to any of the first and second features, (k) the base tape 28 is woven with a polyester crimped multifilament yarn, ) The side edge in the length direction is a cut opening, and (m) the fibers constituting the polyester crimped multifilament yarn are melted and fused at the cut opening, and (n) the side The film is continuous in the length direction of the edge.

  A fourth feature of the sewing fabric according to the present invention is that, in addition to any of the first, second, and third features, (o) the base tape 28 is formed of a twill weave structure or a satin weave structure. The woven tape has a width of 2 to 5 mm.

  The fifth feature of the sewing fabric according to the present invention is that, in addition to any of the first, second, third, and fourth features, (p) the sewing fabric 93 closed by the slide fastener 25 is orthogonal to each other. It includes a three-dimensional curved surface that is bent in the three-dimensional direction of the X-axis, Y-axis, and Z-axis, and (q) a portion that draws a three-dimensional curve following the three-dimensional direction is a crease The point 71a and the fold line 71b are located in at least a part of the closing portion 36 of the pair of cut main body fabrics 27a and 27b.

  In the slide fastener according to the present invention, the base tape 28 is woven and knitted with a polyester fiber multifilament yarn, and the side edge continuing in the length direction is cut. A first feature is that a plurality of polyester fibers constituting the filament yarn are melted and fused to each other, and the melt of the polyester fibers constitutes the side edge of the base tape 28.

  The second feature of the slide fastener according to the present invention is that, in addition to the first feature, the base tape 28 for locking the stringer 26 is folded back at the joint portion with the stringer, and the base tape 28 and the stringer 26 are U-shaped. The stringer engaging element 23 protrudes toward the outside of the folded fold 33 of the base tape.

  A third feature of the slide fastener according to the present invention is that, in addition to any of the first and second features, the width p of the base tape 28 is 5 mm or less, the width p of the base tape 28 and the width of the stringer 26. The difference from q is that it is 2 mm or less.

According to the present invention (first feature), the slide fastener 25 has the base tape 28 that locks the stringer 26 folded back at the junction with the stringer and overlaps the stringer 26 in a U-shape so that the stringer meshes. The element 23 is a hidden slide fastener that protrudes outside the folded fold 33 of the base tape. The element 23 is hidden under the fold 33 of the base tape, and is a stringer at the closing portion 36 between the cut main body cloth 27a and the cut main body cloth 27b. 26 is not revealed.
At the closing portion 36 between the cut main body fabric 27a and the cut main body fabric 27b, the cut fabric sewing margin 34 and the base tape 28 are sewn by the perforated thread 35, and the cut main body cloth 27 and the base tape 28 are mutually connected with the perforated thread 35 as a boundary. The perforated line 35 is wrapped in the cut main body fabric 27, the cut fabric fold 71 is superimposed on the base tape fold 33, and the one fold 71a of the cut fabric and the fold of the base tape are overlapped. 33a is configured such that the fold line 71b of the other cut fabric and the fold line 33b of the base tape abut each other. The distance r from the stringer engagement element 23 to the perforated line 35 is shorter than the width q of the stringer 26.
For this reason, the fold 71a of the one cut fabric to be closed and the fold 71b of the other cut fabric are brought into close contact with each other, and the pair of one cut main body fabric 27a and the other cut main body fabric 27b are closed at the closed closing portion 36. Opening is less likely to occur, and the base tape 28 is hidden under the cut fabric folds 71a and 71b. As a result, the base tape 28 is less likely to be exposed at the closed portion 36 between the cut main fabric 27a and the cut main fabric 27b. Become.

The distance r from the meshing element 23 to the perforated line 35 is shorter than the stringer width q, and the pair of cut lined perforated lines 35a and 35b are very close to each other, so that the cut main body lines 27a and 27b are closed. Even when the portion 36 is curved, there is little difference in the lengths of the perforated lines 35a and 35b, and the opening and closing of the closing portion 36 is not particularly difficult.
The width p of the base tape and the width q of the stringer are 5 mm or less, the distance r from the meshing element 23 to the perforated line 35 is shorter than the width q of the stringer, and the perforated line 29 from the side edge 29 of the base tape. Since the distance t to 35 is also reduced to about 2 to 3 mm, when the hidden slide fastener 25 is stitched, in order to protrude the engagement element 23 outward, the cutting fabric sewing margin and the base tape are reversed 180 degrees around the engagement element 23. However, there is no particular difference between the length L ′ before reversal of the side edge 29 of the base tape and the length L ′ after reversal, and the length L·L ′ before and after reversal is the length of the perforated line 35. It becomes almost equal.

The same applies to the lengths (L·L ′) before and after inversion of the edges 37 and 37 of the pair of cut fabric sewing margins 34 and 34.
This is because the edge 37 of the cut fabric sewing margin and the side edge 29 of the base tape are overlapped, and the crease 71 between the cut main fabric and the cut fabric stitch allowance and the fold 33 between the stringer and the base tape are overlapped. The width of the cut fabric seam allowance 34 is equal to the width p of the base tape, and the length 37 of the cut fabric seam allowance is also equal to the length L (L ′) of the side edge 29 of the base tape. Because.

  In this way, even if the cutting fabric sewing allowance and the base tape are reversed 180 degrees around the meshing element 23, the lengths L and L ′ before and after the reversal of the edge 37 of the cutting fabric sewing allowance and the side edge 29 of the base tape can be maintained. Since the lengths of the thread lines 35 are substantially equal, the base tape is not exposed by opening the cut main body cloth 27a and the cut main body cloth 27b, and the cut main body cloth 27 is pulled or wrinkled. No unsightly appearance.

In the present invention (first feature), the width p of the base tape and the width q of the stringer are 5 mm or less, the difference between the width p of the base tape and the width q of the stringer is 2 mm or less, and the hidden slide fastener 25 is a stringer. Even if the base tape 28 and the base tape 28 form an overlapping string shape, the base tape 28 and the stringer 26 that overlap and face each other in a U-shape are opened at a crease 33 therebetween to make a right angle. In the open state at the right angle, the base tape 28 is placed on the cutting body cloth 27, the side edges 29 of the base tape are overlapped with the edges 37 of the cutting cloth sewing margin, and the side edges of the overlapping base tapes are overlapped. 29 is sewed with a perforated line 35 between the cut fabric stitching margin 34 and the base tape 28 while visually observing the edge 37 of the cut fabric stitch margin, and the cut fabric stitch is sewn. You can align the length L of the length of the die edge 37 and the base tape side edge 29.
Even if the width p of the base tape is 2 to 5 mm, the base tape 28 is supported by the stringer 26. Therefore, there is no particular difficulty in sewing the base tape 28 to the cut fabric sewing margin 34. If the distance t between the edge 29 and the perforated line 35 is about 2 to 3 mm, the perforated line 35 will not be unwound from the side edge 29 of the base tape.

In the present invention (second feature), the curves of the fold lines 71a and 71b of the pair of cut main body fabrics 27a and 27b drawn in a curved line are inflected, and before and after the inflection point 70 of the curve, The length Sa of the perforated thread on one side of the cut main body fabric 27a to be closed and the length La of the side edge of the base tape on the other side are the length S of the perforated thread on the other side of the cut main body fabric 27b and the length of the side edge of the base tape. Even if the inflection point 70 is exceeded, the length Sa of the perforated thread of the cut main body fabric 27a on one side and the length La of the side edge of the base tape are cut on the other side. Since it becomes longer than the length S of the sewing thread of the main body fabric 27b and the length L of the side edge of the base tape, the length (S) of the sewing thread of the pair of cut main body fabrics 27a and 27b and the base tape as a whole (total) Side edges The length L is the same.
Accordingly, even if the pair of cut main body fabrics 27a and 27b are closed via the slide fastener 25 so that the closing portion 36 is curved, the length S of the perforated thread of the cut main body fabrics 27a and 27b and the base tape There is no opening at the closing portion 36 due to the length L of the side edge, and there is no dragging or wrinkling of the cut main body fabric 27, so that a sewing fabric 93 in which they are neatly closed is obtained.

According to the present invention (third feature), even if the base tape is cut to a width of 2 to 5 mm and the side edges of the base tape are not woven back, the broken warp and weft are fused. Then, since the film is continuous in the length direction, the side edges of the base tape are not unraveled. On the contrary, the side edges of the base tape easily expand and contract, so that the closed portion 36 draws a curve. Even if the pair of cut main body fabrics 27a and 27b are closed through the slide fastener 25, the closing due to the length S of the perforated thread of the cut main body fabrics 27a and 27b and the length L of the side edge of the base tape is closed. Opening at the portions 36, and pulling and wrinkling of the cut main body fabric 27 are more difficult to occur. And even if it is a hidden slide fastener with a base tape width p of 10 mm or more, the base tape can be cut with an ultrasonic cutter or a heat cutter so that the width p can be 5 mm or less. No special hidden slide fastener is required.
Therefore, the present invention (third feature) is easy to implement and practical.

  According to the present invention (fourth feature), the base tape 28 is not a hard plain weave structure, but a warp is raised on a plurality of wefts, and the weft is a non-plain weave structure on a plurality of warps. Since it is woven by the structure or the satin weave structure, the warp yarn easily moves in the width direction of the base tape. Therefore, even if the pair of cut main body fabrics 27a and 27b are closed via the slide fastener 25 so that the closing portion 36 is curved, the length S of the perforated thread of the cut main body fabrics 27a and 27b and the base tape Opening at the closed portion 36 due to the length L of the side edge, and pulling and wrinkling of the cut main body cloth 27 are further less likely to occur.

  According to the present invention (fifth feature), the width q of the stringer 26 of the slide fastener is 5 mm or less, the width p of the base tape 28 is 5 mm or less, the width p of the base tape 28 and the width q of the stringer 26. Since the difference is 2 mm or less, the slide fastener 25 is easily twisted, and the vehicle seat seat in which the three-dimensional curved surface continues by bending in the three-dimensional directions of the X-axis, the Y-axis, and the Z-axis orthogonal to each other. When the sewing fabric 93 is attached to the backrest body or the seat surface body, the sewing fabric 93 is in close contact with the convex or concave portions of the three-dimensional curved surface of the backrest body or the seat surface body, as shown in FIG. Even when the closed portion 36 of the cut main body fabric 27a and the cut main body fabric 27b of the convex portion 61 and the concave portion 62 continues in the direction of crossing the cross section 63 with a cross angle α of less than 90 degrees, As shown in FIG. 12, the fold lines 71a and the fold lines 71b of the pair of cut main body fabrics 27a and 27b are changed in the three-dimensional direction. Like the trajectory of the flying airplane wing, the surface of the closed portion 36 draws a three-dimensional curve that continues in a smooth three-dimensional direction.

There are two types of slide fasteners: coil-type slide fasteners in which a large number of stringers that are continuous in a coil shape are woven and knitted into a base tape, and plant-type slide fasteners in which stringers are individually implanted in a base tape. In any type of slide fastener, it is necessary to increase the width of the base tape from the relationship of locking or gripping the stringer in the manufacturing process, and it is difficult to reduce the width to 5 mm or less.
In this regard, in the present invention, the base tape 28 is knitted and knitted with the polyester fiber multifilament yarn, and the side edge continuing in the length direction is formed as a cut opening, and the polyester fiber multifilament yarn is formed at the cut opening. A plurality of polyester fibers are melted and fused to each other, and the side edges of the base tape 28 are constituted by the melt of the polyester fibers. Such a slide fastener has a base tape width of 5 mm or more. A base tape of a commercially available slide fastener can be obtained by cutting with a heat cutter, an ultrasonic cutter or the like so that its width is 5 mm or less.
And when cutting a polyester fiber multifilament yarn with a heat cutter or an ultrasonic cutter, the polyester fiber constitutes a tough melt, and the polyester fiber melt constitutes the side edge of the base tape 28. Therefore, the side edge of the base tape 28 is not unraveled similarly to the side edge of the base tape of the conventional slide fastener.

  Therefore, according to the present invention, even if a slide fastener in which the width p of the base tape 28 is 5 mm or less and the difference between the width p of the base tape 28 and the width q of the stringer 26 is 2 mm or less is not commercially available, The stringer 26 is not exposed even at the closed portion 36 of the cut main body fabric 27a and the cut main body fabric 27b by cutting with a commercially available slide fastener heat cutter or ultrasonic cutter having a width of 5 mm or more. The sewing fabric 93 can be obtained.

When using a woolen fabric such as a pile fabric or a raised fabric for the sewing fabric (27), the effects of the present invention are fully exhibited.
That is, the pile protruding from the pair of cut main body fabrics 27a and 27b sandwiching the closing part 36 is covered with the raised fluff so that the closing part 36 is not conspicuous and the opening at the closing part (36) is not noticeable. This is because pulling and wrinkling of the cut main body fabric 27 are even more difficult to occur.

In the present invention, the width of the cut fabric sewing margin 34 is set to 5 mm or less, which is equal to the width p of the base tape. Therefore, in order to prevent the cut fabric sewing margin 34 from coming off from the edge 37, as in the case of the base tape, sewing is performed. The fabric for cutting may be cut with an ultrasonic cutter or a heat cutter, the fibers of the edge 37 of the cut fabric sewing margin are fused, and the film is continuously formed along the edge 37.
For this purpose, polyester fibers or other thermoplastic synthetic fibers are used or mixed in the sewing fabric (27).
When the sewing fabric (27) is a hair fabric such as a pile fabric or a raised fabric, a thermoplastic synthetic fiber may be used or mixed in the base fabric for locking the raised fluff. The pile or the raised fluff It is not enough to apply thermoplastic synthetic fibers to

In order to prevent the cutting fabric sewing margin 34 from being unwound from the edge 37, the overlock sewing machine is trimmed with the sewing thread, or the sewing fabric is cut using a piping rod to cut the sewing fabric. It is also effective to make a cut along the edge 37 of the material seam allowance.
When the sewing fabric is cut using the piping rod, the distance from the crease 71 to the cut on the cut fabric is made equal to the width p of the base tape.

The slide fastener 25 and the cut main body fabric 27 are formed by aligning the side edge 29 of the base tape 28 with the end edge 37 of the cut main fabric allowance 34, placing the slide fastener 25 on the cut main body fabric 27, 28 is sutured by a perforated thread 35.
The width p of the base tape 28 is set to 2 to 4 mm, and the perforation line 35 is formed at the joint between the stringer 26 and the base tape 28 so that the distance t between the perforation line 35 and the side edge 29 of the base tape is less than 4 mm. Close approach (Fig. 5a).
For this purpose, the stringer 26 is raised at a right angle with respect to the base tape 28 using the pressing piece 31 shown in FIGS. 3 and 4, and the slide fastener 25 is cut into the main body while the base tape 28 is crimped to the cutting fabric sewing allowance 34. In this case, the stringer 26 is raised at a right angle on the base tape 28 by the tape holder 15 shown in FIG. 3 and the slide fastener 25 is introduced into the pressing piece 31.

FIG. 3 illustrates a sewing machine on which the tape holder 15 is mounted, and the slide fastener 25 is guided to the working position of the sewing needle 30 through the tape holder 15.
The tape holder 15 is reversely connected to a support leg 39 that is vertically joined to the support 16 via a pin 38 so as to be swingable and tiltable, and an arm 40 that protrudes horizontally from the support leg 39 in a cantilevered manner. It is configured in an L shape and is supported by the abutment 16.
The abutment 16 is received by the base plate 22 so as to be movable.
A dovetail groove 48 into which the base 22 is fitted is attached to the bottom surface of the base 16 so that the base 16 can be moved on the base 22 in the length direction of the arm 40. Yes.

The arm 40 is provided with a downward vertical groove 13 which is continuous from the back surface 21 to the front surface 20 and whose bottom surface 11 becomes the opening 12, and a horizontal groove 14 in which an opening 18 is formed in a direction crossing the vertical groove. The space between the lateral groove opening 18 and the vertical groove opening 12 is open.
Below the bottom surface 11 of the arm 40 is an open space 19 through which the cut main body fabric 27 can pass from the back side 21 to the front side 22.
On the upper surface of the arm 40, a dovetail groove 41 is provided in the length direction of the arm 40, and a slider 42 is fitted in the dovetail groove 41 so as to be slidable in the length direction.
The front end of the slider is folded downward in a U shape, and the folded portion constitutes a lid 17 that slides on the bottom surface 11 of the arm 40 to open and close the opening 12 of the vertical groove.
The longitudinal groove opening 12 is closed by the lid 17 moving toward the lateral groove opening 18.
The lid 17 moves until the tip 43 abuts against the lower groove edge 44 of the lateral groove 14, and the lateral groove opening 18 is also closed by the moving lid 17.

A spring 45 with a tip 46 protruding downward is joined to the upper surface of the arm 40.
On the upper surface of the slider 42, there are provided two recesses 47 into which the protruding tip 46 is fitted.
When the lid 17 is moved and the opening 12 is closed, the tip 46 of the spring is fitted in the recess 47 on the tip end side of the slider 42, and when the opening 12 is opened, the recess on the rear end side of the slider ( The tip 46 of the spring is fitted to (not shown), so that the closed state and the opened state of the opening 12 are set respectively.
A handle 49 for sliding the slider 42 in the length direction of the arm 40 is attached to the slider 42.
The fastener holder swings about the pin 38 and stops when the support leg 39 abuts against the support 16 and the arm 40 stands still, and the base tape 28 is fitted into the lateral groove 14 in the stationary state. A stringer 26 can be fitted into the groove 13.

Since the lid 17 opens and closes the longitudinal groove opening 12 at a position away from the lateral groove opening 18, the base tape 28 can be freely fitted into the lateral groove 14 in the opened state of the longitudinal groove 13. The stringer 26 can be fitted into the vertical groove 13 in a state where the base tape 28 is fitted in the horizontal groove 14, and the base tape 28 fitted in the horizontal groove 14 and the stringer 26 fitted in the vertical groove 13 are in an orthogonal state. .
That is, the stringer 26 rises perpendicularly to the side edge of the base tape 28 at the fold 33.
When the lid 17 is moved and the longitudinal groove opening 12 is closed in a state where the base tape 28 and the stringer 26 are fitted, the lateral groove opening 18 is also blocked by the lid 17 and the stringer 26 is closed. The state of standing up vertically along the side edge of is maintained.

A pressing piece 31 for holding the cut fabric is attached to an action portion of the sewing needle 30 of the sewing machine.
The pressing piece 31 is supported by a support rod that is driven up and down, and is driven up and down toward the slide fastener and the cut fabric to be sewn, and presses the slide fastener and the cut fabric.
On the bottom surface 50 of the pressing piece, there is provided a guide groove 32 for fitting a stringer of a slide fastener and guiding the fitted stringer in a direction in which the cut fabric passes.
A through-hole 54 through which the sewing needle 30 that moves up and down passes is formed in an intermediate portion between the inlet and the outlet of the guide groove 32.
The groove width of the inlet and outlet of the guide groove 32 is wider than the groove width of the intermediate portion between the inlet and outlet.
The groove bottom 55 of the guide groove 32 in the middle portion is separated from the through hole 54.
The groove walls 56 and 57 that face each other in the intermediate portion of the guide groove 32 are inclined with respect to the bottom surface 50 of the pressing piece 31 in a direction in which the groove bottom 55 in the intermediate portion is separated from the through hole 54 (FIG. 4). .

The slide fastener 25 is pulled out from the longitudinal groove 13 and the lateral groove 14 in a state where the stringer 26 rises perpendicularly to the side edge of the base tape 28 in the tape holder 15 and is introduced into the guide groove 32 of the pressing piece 31.
Since the stringer 26 is pulled out in such a state that the guide tape 32 is easily fitted to the stringer 26 rising vertically to the side edge of the base tape 28 and the pressing piece 31 is lowered, the base tape 28 is pulled down. Is pressed by the cutting body fabric 27, and the slide fastener 25 can be sewn to the cutting body fabric 27 along the fold 33 between the base tape 28 and the stringer 26 (FIGS. 3 and 4).

  Therefore, in the present invention, even if the width p of the base tape 28 is narrowed to 2 to 4 mm, the edge of the cut fabric sewing margin is set so that the distance t between the perforated line 35 and the side edge 29 of the base tape is less than 4 mm. 37 and the side edge 29 of the base tape are overlapped, and the cut main body fabric 27 and the base tape 28 can be sewn by making the perforated line 35 close to the joint portion between the stringer 26 and the base tape 28.

After the slide fastener 25 is sewn to the cut main body fabric 27, the stringer 26 is overlaid on the perforated line 35 and superimposed on the base tape 28 (FIG. 5b).
Next, the cut fabric seam allowance 34 and the slide fastener 25 are folded around the perforated line 35, the cut fabric seam allowance 34 and the base tape 28 are sandwiched between the cut main body fabric 27 and the stringer 26, and the meshing element 23 is the fold of the base tape. It will be in the original state which protruded outside 33 (FIG. 5c).

FIG. 6 illustrates a vehicle seat, and the back cover 77 and the seat cover 78 are constituted by the sewing fabric 93 of the present invention.
The back cover 77 is composed of a center cut fabric 85 that covers the center portion of the back body and left and right side cut fabrics 86 and 87 that cover the side portions thereof.
The center cut fabric 85 is a single cut fabric in which a front fabric 79 covering the front of the back body and a back cut fabric 88 covering the front of the back body are continuous, and slide fasteners along the edges 72a and 72b. 25 is sewn.
The left and right side cut fabrics 86 and 87 are sewn into a bag shape by stitching the front cut fabric 79 and the back cut fabric 88 on the front and back of the side cut fabric 82, and the slide fastener 25 along the peripheral edge 89 of the opening. Is sutured.

  The edges 72a and 72b of the center cut fabric 85 and the peripheral edges 89 of the side cut fabrics 86 and 87 are asymmetric curves inflected at four inflection points 70a, 70b, 70c, and 70d, respectively.

  Similar to the back cover 77, the seat cover 78 is also composed of a center cut fabric 85 covering the center of the seat body and left and right side cut fabrics 86 and 87 covering the side portions, which are slide fasteners. Are closed together.

It is a perspective view of the cutting cloth concerning the present invention. It is a perspective view of the sewing fabric which concerns on this invention. It is a perspective view of the tape holder concerning the present invention. It is sectional drawing of the press piece which concerns on this invention. It is a perspective view of the cutting cloth concerning the present invention. 1 is a perspective view of a vehicle seat according to the present invention. It is a perspective view of the conventional sewing fabric. It is a top view of the conventional sewing fabric. It is a top view of the conventional sewing fabric. It is a perspective view of the conventional cutting cloth. It is a section perspective view in the state where it was equipped with the vehicle seat of the sewing fabric concerning the present invention. It is a principal part expansion perspective view of the sewing fabric shown in FIG.

Explanation of symbols

10: General-purpose slide fastener 11: Bottom surface 12: Opening 13: Vertical groove 14: Horizontal groove 15: Tape holder 16: Abutment 17: Lid 18: Opening 19: Space 20: Front 21: Rear 22: Base 23: Engaging element 25 : Hidden slide fastener 26: Stringer 27: Cutting body fabric 28: Base tape 29: Side edge 30 of the base tape 30: Sewing needle 31: Pressing piece 32: Guide groove 33: Crease 34 of the base tape 34: Cutting fabric seam allowance 35: Sewing thread 36: Closing point 37: Edge of cut fabric sewing margin 38: Pin 39: Support leg 40: Arm 41: Dovetail groove 42: Slider 43: Lid tip 44: Groove edge 45: Spring 46: Spring tip 47: Recess 48: Dovetail groove 49: Handle 50: Bottom surface 54: Through hole 55: Groove bottom 56 of the guide groove 57: Groove wall 57 of the guide groove 61: Groove wall 61 of the guide groove 62: Concavity 63: Cross section 7 : Inflection point 71: Crease 73 of cut fabric: Center of curvature 77: Back cover 78: Seat cover 79: Front cut fabric 82: Side cut fabric 85: Center cut fabric 86/87: Side cut fabric 88: Back cut Fabric 89: Peripheral edge 93: Sewing fabric 98: Swelling portion 99: Recessed portion L: Base sheet side edge length R: Curvature radius S: Perforation thread length p: Base sheet width q: Stringer width k : Distance between the perforated line and the stringer r: Distance between the perforated line and the meshing element t: Distance between the perforated line and the base sheet side edge

Claims (8)

(A) A pair of cut main body fabric (27a) and a cut main body fabric (27b) are closed by a slide fastener (25),
(B) In the slide fastener (25), the base tape (28) that locks the stringer (26) is folded back at the junction with the stringer, and the base tape (28) and the stringer (26) face each other in a U shape. The stringer engagement element (23) is a hidden slide fastener protruding outside the folded base tape fold (33);
(C) The edge side (37) of the cut main body fabric (27) is continuously folded back to the cut fabric sewing allowance (34), and the cut cut fabric sewing margin (34) and the cut main body fabric (27) are Facing each other in a U-shape and overlapping,
(D) The cutting body fabric (27) and the slide fastener (25)
(D1) The cutting fabric seam allowance (34) and the base tape (28) are sandwiched between the cutting body fabric (27) and the stringer (26),
(D2) The edge (37) of the cutting fabric seam allowance and the side edge (29) of the base tape are overlapped,
(D3) The fold line (71) between the cut main body cloth and the cut cloth seam allowance and the fold line (33) between the stringer and the base tape are overlapped and stitched by the perforated thread line (35),
(E) The width (q) of the stringer (26) of the slide fastener is 5 mm or less,
(F) The width (p) of the base tape (28) is 5 mm or less, and the difference between the width (p) of the base tape (28) and the width (q) of the stringer (26) is 2 mm or less,
(G) A sewing fabric characterized in that the distance (r) from the stringer engagement element (23) to the perforated line (35) is shorter than the width (q) of the stringer (26). (H) The closing part (36) of the pair of cut main body fabrics (27a, 27b) that are closed together has a curve in the length direction of the slide fastener (25),
(I) The folds (71a, 71b) of the pair of cut main body fabrics (27a, 27b) that are closed together form a left-right asymmetrical curve with the closing point (36) as a boundary,
(J) The sewing fabric according to claim 1, wherein the sewing fabric has an inflection point (70) at which a curve drawn by the closing portion (36) is inflected. (K) the base tape (28) is woven with polyester crimped multifilament yarn,
(L) The side edge that continues in the length direction is a cut opening that is cut,
(M) The fibers constituting the polyester crimped multifilament yarn are melted and fused at the cut end,
(N) The sewing fabric according to any one of claims 1 and 2, which is continuous in a film shape in the length direction of the side edge. The sewing fabric according to any one of claims 1, 2 and 3, wherein the base tape (28) is a woven tape having a width of 2 to 5 mm woven by a twill weave or satin weave having a non-plain weave structure. . (P) The sewing fabric (93) that is closed to the slide fastener (25) includes a three-dimensional curved surface that is bent in the three-dimensional directions of the X axis, the Y axis, and the Z axis that are orthogonal to each other. And
(Q) A portion that draws a three-dimensional curve following the three-dimensional direction is interposed in at least a part of the closed portion (36) of the pair of cut main body fabrics (27a, 27b) where the fold (71a) and the fold (71b) face each other. A sewn fabric according to any one of claims 1, 2, 3 and 4.   The base tape (28) is woven and knitted with polyester fiber multifilament yarn, and a side edge in the length direction is cut, and the polyester fiber multifilament yarn is formed at the cut port. A slide fastener characterized in that a plurality of polyester fibers are melted and fused together, and the melt of the polyester fibers constitutes the side edge of the base tape (28).   The base tape (28) that locks the stringer (26) is folded back at the joint with the stringer, and the base tape (28) and the stringer (26) face each other in a U shape and overlap each other. The slide fastener according to claim 6, wherein 23) protrudes toward the outside of the folded fold (33) of the base tape.   The widths (p) of the base tape (28) are 5 mm or less, and the difference between the width (p) of the base tape (28) and the width (q) of the stringer (26) is 2 mm or less. The slide fastener in any one of.

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