JPH06198092A - Sewing guide jig - Google Patents

Abstract

PURPOSE:To provide a sewing guide jig reducing the burden of sewing work and capable of sewing cloth independently of the skill of an operator. CONSTITUTION:A sewing guide jig 10 is a guide jig to be used when a margin for a seam and the cloths are sewn up again at the side of a seam after at least two pieces of cloth are sewn, consisting of a base plate 11 arranged on a table of sewing machine, center guide section 12 formed on the base plate 11 and arranged ahead of a needle H, and exit guide 13 extended from both sides of the center guide section 12 and formed near both sides of the needle H. The center guide section 12 is provided with a center projection 14 projected upward and a side projection 15 formed to cover spaces along the center projection 14 except the upper part of the center projection 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing guide jig,
Especially in the sewing of fabrics used for interior and exterior and vehicle seats, interior materials, etc., after the ground stitch, the seam allowance and the fabric are sewn again at the side of the seam of the ground stitch (hereinafter simply referred to as “double stitch )) When it is suitable for use with a sewing guide jig.

[0002] In the present specification, the term "fabric" is used as a general term to refer to sheet-like materials used for interior and exterior, vehicle seats, interior materials, etc., regardless of material, woven cloth, non-woven cloth, synthetic resin sheet or the like. And

[0003]

2. Description of the Related Art Conventionally, when sewing a skin material for a vehicle seat, for example, after performing ground stitching, a so-called double stitch is performed to sew the seam allowance and the skin material again to increase the strength of the sewn portion. Is being done. To explain this,
As shown in FIG. 6, the seam allowance 61 of the two fabrics 61, 62
The fabrics 61 and 62 are aligned with the front and back, leaving a and 62a, and sewn together from the back (ground stitching). Code 6
3 is a seam.

Next, as shown in FIG. 7, seam allowances 61a, 6a
2a is divided into left and right, and a seam (so-called seam) 63 of the ground stitch is formed.
The tip portions 64a, 65a of the guides 64, 65 of the sewing needle H are brought into contact with the portion of the upper and lower portions from above and below, and the upper and lower guides 64, 6 are
Sewing was done with 5 as a guide.

[0005]

When the upper and lower guides 64 and 65 are sewn as described above, a slight groove or crease in the stitch 63 of the ground stitch is guided in the stitch after the ground stitch. As the sewing is performed, not only does it require skill, but since the soft portion of the seam 63 of the cloth is held by the upper and lower guides 64 and 65,
Even a skilled person, as shown in FIG. 8, may have meandering or pitch deviation in the stitched portion 66, or the upper and lower guides 64, 6
Since the sewing work is performed while watching only one point of the portion 5 for a long time, there is a disadvantage that the work efficiency is low.

An object of the present invention is to reduce the sewing work and
An object of the present invention is to provide a sewing guide jig that requires no skill and can perform sewing without depending on the skill level of an operator.

[0007]

The sewing guide jig according to the present invention is used when at least two cloths are ground-sewn and then the seam allowance and the cloth are re-sewn on the side of the seam of the ground-sewing. In the guide jig, a base plate arranged on the sewing machine table, a center guide portion formed on the base plate and arranged in front of the sewing machine needle, and extending from both sides of the center guide portion and near both side positions of the sewing machine needle. A sewing guide jig including an outlet guide formed up to the center projection, wherein the center guide portion has a center projection protruding upward and a gap along the center projection except an upper portion of the center projection. And a side protrusion formed so as to cover the side protrusion.

Further, it is preferable that a groove having the width of the backing tape is formed on the back side of the base plate through the position on the back side of the center guide portion. Further, it is more preferable to form a raised portion on the side of the sewing machine needle of the outlet guide.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention. 1 to 5 show an embodiment of the present invention. FIG. 1 is a perspective view of a sewing guide jig, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. FIG. 4 is a sectional view taken along the line BB of FIG. 3, and FIG. 5 is a partial sectional view showing a state where the backing tape is sewn at the same time.

As shown in FIG. 5, the sewing guide jig 10 of the present embodiment has at least two skin materials 1 and 2 as cloth, which are sewn on the ground, and then on the sides of the seam 3 of the ground stitch, respectively. This is used when the seam allowances 1a, 2a and the skin materials 1, 2 are re-sewn together. Further, this example shows an example in which the backing tape 8 is sewn together at the time of the above sewing.

In this example, as the skin materials 1 and 2, the surface material 4 and the urethane material 5 are laminated.
It is not limited to this. Further, the sewing machine M uses two sewing needles H for double stitching provided at a predetermined interval.

As shown in FIG. 1, the sewing guide jig 10 of this embodiment includes a base plate 11 and the base plate 1.
1 and the center guide portion 12 and the exit guide 1
3 and 3 are provided.

The base plate 11 of this embodiment is composed of a plate body, and the center guide portion 12 is formed at the central position of the base plate 11. The center guide portion 12 is composed of a center protrusion 14 and a side protrusion 15, and is formed so as to be positioned in front of the sewing machine needle H. The center protrusion 14 has a predetermined width at the center position of the base plate 11 and protrudes upward, and the upper surface thereof is a curved surface 14a.

The side projections 15 are center projections 14.
Is formed so as to cover the center projection 14 from both sides toward the center projection 14 side and along the center projection 14 except the upper surface 14a of the center projection 14 with a gap X therebetween. As shown in FIGS. 2 and 4, the gap X between the center protrusion 14 and the side protrusion 15 is the center protrusion 1 at the seam allowances 1a, 2a of the ground-sewn skin materials 1, 2.
4 and the side projection 15 can be passed.

An outlet guide 13 is formed on the base plate 11. The outlet guide 13 extends from both sides of the center guide portion 12 to the vicinity of both sides of the sewing machine needle H, and the outlet guides on both sides are formed. 13,13
The space 7 is provided so that the sewing machine needle H can be arranged between them. Then, on the sewing needle H side of the exit guide 13,
Raised portions 13a, 13a are formed. The skin materials 1 and 2 are lifted up by the raised portions 13a and 13a, and the seam allowances 1a and 2a are located at the center projection 1.
After passing between 4 and the side projection 15, the suture can be satisfactorily performed.

A tape groove 16 for the width of the backing tape 8 (see FIG. 3) is formed on the back side of the base plate 11 through the position on the back side of the center guide portion 12, and the center of the tape groove 16 is within the range of the tape groove 16. A confirmation window 17 for the backing tape 8 is formed on the side of the guide section 12 opposite the exit guide section 13.

In FIG. 1, reference numeral 18 is a base plate 1.
As shown in FIG. 3, a mounting hole for fixing the sewing machine table 1 and the sewing machine table T with a fixing tool 19 such as a screw, and reference numeral 20 in FIGS. 3 and 5 are double stitch seams.

Next, the operation of the embodiment having the above structure will be described with reference to FIGS. First, the sewing guide jig 10 is arranged on the sewing machine table T. As for the arrangement of the sewing guide jig 10, the attachment hole 16 formed in the base plate 11, the fixing tool 19 such as a screw, and the fixing hole on the sewing machine table T (not shown) are fixed together.
At this time, the center projection 14 of the center guide portion 12 that constitutes the sewing guide jig 10 is arranged in front of the sewing machine needle H and at an intermediate position between the two sewing machine needles H.

Next, as shown in FIG. 4, the seam allowance 1a, centering on the sewn portion 3 of the skin materials 1 and 2 which have already been ground-sewn,
The portion 2a is passed between the center protrusion 14 and the side protrusion 15 so that the side protrusions 14, 14 are located between the skin materials 1, 2. By doing so, the seam allowances 1a and 2a passing through the center guide portion 12 and the raised portion 13
The skin materials 1 and 2 lifted by a and 13a are
It can be sewn by the two sewing needles H located at the space portion 7 at both sides of the seam 3. In this example, FIG.
, The backing tape 8 is sewn together at the same time,
As shown in FIG. 5, the back side of the stitched portion is covered.

In the above embodiment, the base plate 11 is provided with a mounting hole 16 for fixing it to the sewing machine table T.
Although the structure for fixing the sewing machine table T to the sewing machine table T by the fixing tool 19 such as a screw and a screw is shown, various known techniques can be used for fixing the base plate 11 and the sewing machine table T. It is also possible to form a slide groove having substantially the same thickness as the plate thickness and to fix the base plate 11 by sliding it to the sewing machine table T.

[0021]

According to the sewing guide jig of the present invention,
The center protrusion and the side protrusions formed on the center guide portion reliably guide the ground-sewn skin material, so that no skill is required and the stitching work can be performed without causing the meandering of the stitching portion. Moreover, it is not necessary to see only one point, and it does not depend on the skill level of the operator. As described above, the work can be facilitated, the work time can be shortened, the work efficiency can be improved, and the sewing for sewing the seam allowance and the cloth again after the ground sewing can be facilitated. Further, since no skill is required, it is possible to provide a sewn product of which the quality does not vary and the quality is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a sewing guide jig according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a perspective view illustrating a sewing state.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 is a partial cross-sectional view showing a state where the backing tape is sewn at the same time.

FIG. 6 is an explanatory diagram of plain stitching.

FIG. 7 is an explanatory cross-sectional view of a conventional example.

FIG. 8 is an explanatory diagram of a meandering method state.

[Explanation of symbols]

 1, 2 Cloth (skin material) 3 Stitch 10 Sewing guide jig 11 Base plate 12 Center guide part 13 Exit guide 14 Center protrusion 15 Side protrusion 16 Tape groove 13a Raised part H Sewing needle T Sewing table

Claims (3)

[Claims] 1. After sewn at least two pieces of fabric,
In the guide jig used to re-sew the seam allowance and the fabric on the side of the seam of the ground stitch, the base plate placed on the sewing machine table and the center plate formed on this base plate and placed in front of the sewing needle. A sewing guide jig comprising a guide portion and an outlet guide extending from both sides of the center guide portion to the vicinity of both side positions of the sewing machine needle, wherein the center guide portion has a center portion protruding upward. A sewing guide jig comprising a protrusion and a side protrusion formed so as to cover the center protrusion except the upper portion thereof with a gap therebetween. 2. The sewing guide jig according to claim 1, wherein a groove having the width of the backing tape is formed on the back side of the base plate through the position on the back side of the center guide portion. 3. The sewing guide jig according to claim 1, wherein a protrusion is formed on the side of the sewing machine needle of the outlet guide.