JPH05321001A - Method for sewing back panel-like gore-inserted panty stocking - Google Patents

Abstract

PURPOSE:To sew back panel-like gore-inserted panty stockings capable of improving fitting property from the rear of panty part to the inside of a thigh in wearing and suitable for automation of gore-inserting operation. CONSTITUTION:The objective method for sewing back panel-like gore-inserted panty stockings is carried out by cutting the inside part 18a of a thigh of tubular stocking fabrics 11 and 12 laterally matched, inserting pack panel-like gore fabric 20 at the position ranging from the rear 18c of panty to the inside part 18a of a thigh and sewing the stocking fabric. Middle cramps 34 and 35 having grooves 35 and 45 inserting the back panel-like gore fabric 20 in a state folded into two is put on at least either one of a pair of lateral cramp groups 30 and 40 and the upper edge part 20' and lower edge part 20'' of the gore fabric 20 inserted into these middle cramps 34 and 35 each are sewn on the cut edges 13 and 14 of stocking fabrics 11 and 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for sewing panty hose in which a back panel-shaped gusset is inserted from the rear part of the panty part to the inner crotch part.

[0002]

2. Description of the Related Art Conventionally, as a sewing method for this kind of panty hose, after cutting the inner crotch part of the left and right tubular stocking material, a diamond-shaped gusset material forming a gusset portion at the inner crotch part is folded in two, That is, it is formed into a triangular shape and is inserted so as to be sandwiched between the inner crotch portions of the cut left and right tubular fabrics and sewn, whereby the pantyhose with diamond-shaped gusset is intervened in the inner crotch portion between the left and right tubular fabrics. A method is known (for example, Japanese Patent Publication No. 57-1).
7961).

An outline of the sewing process of the pantyhose with diamond-shaped gusset will be described with reference to FIG.

First, in FIG. 1A, reference numerals 1 and 2 denote stockings of a left leg and a right leg knitted by an ordinary circular knitting machine, respectively.
As shown in (B) of the same figure, it bites along the lines 3 and 4, and the middle part sandwiched between these biting lines 3 and 4 is cut along the dotted line 5, and as shown in (C) of the same figure. Cut the inner crotch part open to the center of the crotch part, and insert the diamond-shaped town cloth 8 into the crotch part.
In parallel with step 4, by forming the seam 6 as shown in FIG. 6D and then the seam 7 as shown in FIG. 4E by a two-step sewing process, FIG. The panty hose 10 in which the diamond-shaped town 8 is intervened in the inner crotch portion as described above is obtained.

[0005]

By the way, in the conventional pantyhose with diamond-shaped gusset, the fitting property at the inner crotch portion 9a of the panty portion 9 is obtained when worn, but the front portion 9b and the rear portion 9c thereof are completely the same. Due to the size, the hip of the wearer is strongly strained, and the wearing comfort is not good. Particularly, in recent years, the wearer's body shape has a protruding hip portion, and the increase in the stretch in the rear portion 9c is a factor that reduces the fit during wearing.

The present invention has been made in view of the above-mentioned problems of the prior art, and is a back panel-shaped gusset capable of improving the fitting property during wearing from the rear part of the panty part to the inner crotch part and being suitable for automation of sewing work. An object of the present invention is to provide a method for sewing panty hose containing stuff.

[0007]

According to the present invention, a band-shaped portion of a back panel-shaped gusset fabric is folded in two between a pair of left and right upper clamps that bite a pair of tubular stocking fabrics and a pair of left and right lower clamps. A pair of left and right middle clamps each having a first groove that can be inserted with and a second groove that can be inserted by folding the V-shaped portion of the woven fabric in half are interposed. Then, the upper and lower clamps via the middle clamp is cut from the center of the opening of the pair of tubular stocking fabrics to the crotch portion, while holding the cutting edge of the cut stocking fabric bite. The left upper and lower clamps and the middle clamp and the right upper and lower clamps and the middle clamp are angled within 180 ° outward from the parallel state, respectively, or 180
The cutting edge is exposed by expanding at an angle of not less than °, and the exposed cutting edge is separated into upper and lower parts. further,
The back panel-shaped gusset material is folded in two between the upper and lower cut edges, and is inserted and held from the first groove to the second groove of the pair of middle clamps. After that, after sewing one edge of the back panel-shaped town fabric by sewing machine processing to one cutting edge of the stocking fabric,
In this method, the other edge of the town cloth is sewn to the other cut edge of the stocking cloth, and the other cut edges of the stocking cloth are sewn together.

[0008]

According to the present invention, since the back panel-shaped gusset is interposed from the rear portion of the panty portion to the inner crotch portion, the rear portion of the panty portion is wider than the front portion. Therefore, strong tension is not applied to the hip portion of the wearer, and the fit property when worn is improved. Furthermore, since the back panel-shaped gusset can be inserted into the stocking cloth by automatic sewing, a highly efficient sewing operation can be realized for the pantyhose manufacturer.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

In the sewing process with the back panel-shaped gusseted panty hose according to the present invention, the gusset portion is formed at a position extending from the rear part of the panty part to the inner crotch part after the inner crotch part of the left and right cylindrical stockings is cut. Fold the back panel-shaped fabric in two in the length direction, insert it so that it is sandwiched between the inner crotch from the rear of the cut left and right tubular fabrics, and sew the tubular fabric This is a method of interposing a back panel-shaped gusset from the rear part between the fabrics to the inner crotch part.

The outline of the sewing process will be described in detail with reference to FIG. First, in FIG.
2 shows the stockings of the left leg and the right leg knitted by an ordinary circular knitting machine, respectively.
After aligning 2 left and right, bite by the upper and lower clamps described later along the lines 13 and 14 as shown in FIG. 2B, and the middle part sandwiched between the biting lines 13 and 14 is shown as the dotted line 15. Then, the back panel-shaped gusset material 20 is inserted into a part opened from the central opening which is the rear part of the panty part to the crotch part as shown in FIG. In addition, the front part of the panty part is only the cutting edge of the stocking cloth, and the town cloth is not interposed. Then, in parallel with the above-mentioned bite lines 13 and 14, a stitch 16 as shown in FIG.
Then, by forming a seam 17 as shown in FIG. 6E, a rear portion 18 of the panty portion 18 as shown in FIG.
It is intended to obtain the pantyhose 19 in which the back panel-shaped gusset 20 is inserted from the c (band-shaped gusset portion 20a) to the inner crotch portion 18a (V-shaped gusset portion 20b).

The back panel-shaped pantyhose 19 with a gusset thus completed is different from the conventional pantyhose with a diamond-shaped gusset in the panty portion 1.
The rear part 18c of 8 has a sufficient size, and since the gusset fabric 20 is stretchable in the vertical and horizontal directions, it not only fits the wearer's hips very well, but also does not get stuffy from the hips to the inner crotch. It will be comfortable to wear. Further, the intervention of the back panel-shaped gusset material 20 eliminates the drawback that the stretch from the hip portion to the inner crotch portion during exercise of the wearer is reduced and the seam portion is damaged.

Next, the sewing process of the pantyhose with back panel-shaped gusset will be specifically described with reference to FIGS. 2 to 19.

FIG. 2 is a plan view showing the outline of a sewing machine for carrying out the method of the present invention. A pair of left and right clamp groups shown in FIG. 3 are mounted on a sliding plate 21 which runs on a circular orbit in the direction of arrow a. 30 and 40 are provided.

The one clamp group 30 is composed of upper and lower clamps 32 and 33 supported by a rotary arm 31 and a middle clamp 34 for the gusset cloth, and the other clamp group 40 is a rotary arm 41. Upper and lower clamps 4 supported
2, 43 and the middle clamp 44 for the town cloth. The one middle clamp 34 is formed with a first groove 35 into which the strip 20a (see FIG. 1 (F)) of the back panel-shaped gusset material can be inserted by folding in half, and the other middle clamp 44 is provided with the gusset material. A second groove 45 into which the V-shaped portion 2b can be inserted by folding is formed.

Further, the left and right arms 31, 41 are rotatably supported on one axis, and therefore the arms 31, 41 are
By rotating 41, the one clamp group 30 and the other clamp group 40 are parallel to each other (first step S in FIG. 2).
1)) to a circular orbit line (the third line in Fig. 2)
(Step S3 and the state of FIG. 3) can be performed, and conversely, the circular orbital line can be closed in a parallel state.

First, in the first step S1 of FIG.
A pair of tubular stocking cloths is inserted into the left and right clamp groups 30, 40 by an operator. That is, one stocking cloth 11 is inserted across the upper clamps 32 and 42 in the parallel state, and another stocking cloth 12 is inserted into the lower clamps 33 and 43 (state of FIG. 4 (A)). After that, an electromagnet (not shown) is activated,
Upper and lower clamps 32, 42; 33, 43 as in (B)
Are pressed against the middle clamps 34 and 44, respectively, and two pieces of the cloth for the inner crotch portion, which is the panty portion of the stocking cloths 11 and 12, are sandwiched between them.

On the other hand, the back panel-shaped town cloth 20 previously cut into a predetermined shape is adsorbed on the first adsorption disk 37 shown in FIGS. 5 (A) and 5 (B). 37a is an air suction hole, 3
7b is a suction hole communicating with the air compressor. The suction board 37 moves from the first step S1 in FIG. 2 to a fourth step S4, which will be described later, in a state where the town cloth 20 is suction-held on the upper surface thereof.

Next, when the left and right clamp groups 30, 40 are moved to the second step S2, the cutter 38 shown in FIG.
Advances to the central openings of the tubular fabrics 11 and 12 and cuts the dotted line portion 15 of the fabric being bitten. The scissors-shaped cutter 38 is structured to reciprocate back and forth by an appropriate drive device.
The clamp groups 30 and 40 move from the second step S2 to the third step S3 while continuing to bite the cloths 11 and 12.
At this time, the arms 31 and 41 of the clamp groups 30 and 40 are expanded at an angle of 180 ° or less to be in the state of FIG. 3, and the cutting edges 13 and 14 of the cloths 11 and 12 are exposed to the outside.

That is, the left and right clamp groups 30 and 40 have a substantially triangular shape with a mountain-shaped apex at their free ends. Then, in the third step S3, as shown in FIG.
The cutting edges 13 and 14 of 12 are vertically separated by appropriate means, and the fourth step S4 is performed while maintaining the separated state.

In the fourth step S4, a town cloth inserting device 50 shown in FIG. 9 (plan view) is provided. This device 50 is moved in the left-right direction b by an appropriate drive means (not shown) and is clamped by the drive motor 53.
It was supported so as to rotate (in the direction of arrow C in FIG. 10) from a horizontal state (solid line portion in FIG. 9) positioned above 0 to a vertical state (dotted line portion in FIG. 9) positioned in front of the clamp group. It has a second suction plate 51. Then, as shown in FIG. 8, the back panel-shaped gusset material 20 is transferred from the first suction plate 37 moving from the first step S1 to the suction plate 51 in the horizontal state.

That is, the first suction disk 37 moved to the fourth step S4 first rotates horizontally by 90 °, then reverses by 180 °, and then the suction action is released to release the town cloth 2.
0 is transferred onto the second suction disc 51. The town fabric 20 is second
When the suction stocker 51 is delivered to the suction sticker 51 and held by suction, the suction sticker 51 first moves in any direction of the left-right direction b and the stocking in which the end portion of the town cloth 20 is bitten by the clamp group 30. Align with the welt end of the dough and align both ends vertically. In this way, by aligning the hem end of the town cloth and the welt end of the stocking cloth so that they are aligned in the upper and lower lines, there is no step in the sewn portions at both ends in the next sewing process, and the sewing is performed accurately. It is something. The amount of movement of the suction disk 51 in the left-right direction b is controlled by a sensor (not shown) that detects the end of the town cloth 20.

When the positioning of the edges of the cloth material is completed, the suction plate 51 is then rotated in the direction of arrow C to move the clamp group 30,
It will be placed in front of 40.

As shown in FIG. 9, the second suction plate 51 has a long portion 51 corresponding to a strip-shaped portion of the town cloth 20.
a and a short portion 51b corresponding to the V-shaped portion of the town cloth, and when rotated vertically, only the short portion 51b is clamped to the left and right by the cam 54.
It is designed to incline according to the spread angle of 0,40. Further, one slit 52 is formed from the long portion 51a to the short portion 51b, and the town cloth insertion plate 55 is inserted into the slit 52 as shown in FIG. Town fabric 20
While being folded in half, each groove 3 of the middle clamps 34, 44
It is designed to be inserted into the inside of 5, 5 (see FIG. 10). During this time, the exposed cutting edges 13 of the stocking fabric,
Since 14 (see FIG. 7) is vertically separated, the cutting edges 13 and 14 do not get entangled with the gusset cloth when the gusset cloth is inserted into the middle clamp.

After that, the insertion plate 55, which has pressed the town cloth 20, retracts and returns to the original position through the slit 52 again. On the other hand, the cut edges 13 and 14 of the stocking cloth that have been separated vertically are also returned to the horizontal state.

As a result, the middle clamp 3 is folded in two.
Town fabric 2 inserted and held in the grooves 35 and 45 of 4,44
0 is arranged between the cutting edges 13 and 14 (see FIG. 12 (A),
(See (B)). Further, as shown in FIG. 12 (A), the gusset material that is folded in two and inserted into the groove 35 of one of the middle clamps 34 is a band-shaped portion 20a, and the upper edge portion 20 'and the lower edge portion 20 "are stockings. The town cloth, which is arranged in parallel with the exposed cutting edges 13 and 14 of the cloth and is folded in two into the groove 45 of the other middle clamp 44, is the V-shaped portion 20b. The upper edge portion 20 'and the lower edge portion 20 "of the terminal end portion are bent in an arc shape so as to have a triangular shape and are arranged so as to project outward from the cutting edges 13 and 14. In this way, the town cloth 20 inserted into the grooves 35 and 45 in the folded state is
It is pressed from above and below by the sponge or rubber 80, 80 shown in FIG. 7 and held in the grooves 35, 45.

In this state, the left and right clamp groups 30, 40
Moves from the fourth step S4 to the fifth step S5. At this time, as shown in FIGS. 13 (A) and 13 (B), the upper cutting edge 13 of the stocking and the town cloth portion 20 which have become the circumferential orbit lines.
The upper seam 63 is formed when the upper edge portion 20 'and the upper edge portion 20' pass through the first sewing machine 61 (see FIG. 1). Then, when forming the seam 63, the surplus fabric portion of the upper edge portion 20 ′ protruding from the cutting edge 13 (hatched portion in FIG. 13A) is cut by the cutter of the sewing machine 61. Further, at the time of sewing with the first sewing machine 61, the lower cutting edge 14 of the stocking and the lower edge portion 20 ″ of the town cloth 20 are folded back downward by the guide plate 65 as shown in FIG. By passing through the second sewing machine 62 (see FIG. 1) on the way to the sixth step S6, as shown in FIG.
4 (A) and 4 (B), seams 64 are formed on the lower cutting edge 14 of the stocking and the lower edge portion 20 ″ of the gusset fabric portion 20. At this time, the cutting edge 14 is cut from the cutting edge 14 in the same manner as described above. The surplus fabric portion of the protruding lower edge portion 20 ″ (hatched portion in FIG. 14A) is cut off by the cutter of the sewing machine 62. At the time of sewing with the second sewing machine 62, the upper seam 62 of the stocking is folded back upward by another guide plate 66 as shown in FIG.

As described above, by the action of the guide plates 65 and 66, the seam 63 shown in FIG.
Each of the seams 64 shown in (C) can be automatically sewn.

While the two-step sewing work by the two sewing machines 61 and 62 shown in FIG. 2 is completed, and between the sixth step S6 and the seventh step S7, the left and right clamp groups 30,
40 is closed by rotating the arms 31, 41 (FIG. 3) from the circumferential orbital line shape to the original parallel state. After that, the excitation of the electromagnet is cut off to release the bite of the fabrics 11 and 12 that have been continuing until then, and the sewing fabric is extracted in the seventh step S7, and then the clamp groups 30 and 40 are again in the first step S1. Then, the series of operations described above is repeated.

As described above, the operator is positioned in front of the first step S1 in FIG. 2 to work the stocking cloths 11, 12 on the left and right clamp groups 30, 40, and the back panel-shaped town cloth 20 for the first operation. Only by performing the work of adsorbing to the one suction plate 37, it is possible to efficiently sew the pantyhose with the back panel-shaped gusset in which all the seams are aligned automatically. In addition, since the right and left clamp groups 30 and 40 having the same function are carried out one after another while moving on the circumferential work orbit, the town entering work is extremely efficient as compared with the conventional sewing work by the operator. Since it is sewn, the cost reduction of the product becomes remarkable and it contributes to the rationalization of production.

In the above description, only the circular orbit is described, but an elliptical orbit and other orbits can be easily considered from the present invention.

In the above embodiment, as shown in FIG.
Although the rectangular town cloth 20 is sucked onto the suction board 37, as shown in FIG. 15 (A), the suction surfaces 70a, 70a,
In the middle of setting the tubular town cloth 71 on the suction board 70 having the 70b and moving it to the fourth step S4, FIG.
The tubular cloth 71 is put on the upper and lower cloths 7 with the cutters 73, 73 as shown in FIG.
You may separate into 1a and 71b. 70c is a suction hole communicating with the air compressor. Then, as shown in FIG. 16, first, the lower town cloth 71b is delivered to the suction board 51, and the suction board 70 is inverted 180 ° in the next cycle to use the upper town cloth 71a. In this case, FIG.
Unlike (A) and (B), it is possible to omit the step of cutting the gusset cloth into a predetermined shape in advance, and to make the tubular gusset material 71 into one piece.
Since the two pieces of town cloths 71a and 71b can be obtained by simply mounting the cloth twice, there is an advantage that the labor of the operator can be saved.

Next, FIG. 17 shows a second embodiment of the present invention. In this embodiment, the tip of the middle clamp 34 interposed between the upper and lower clamps 32 and 33 on one side is extended according to the length of the gusset cloth, and the extended end 34 'is inserted into the insertion groove 45 of FIG. You may make it provide the corresponding town cloth insertion groove 45 '. In this case, the other upper and lower clamps 42, 43
The middle clamp (44 in FIG. 3) can be omitted, and the structure can be simplified. It should be noted that, as shown in FIG. 6B, the free ends 42 ′ and 43 ′ of the other upper and lower clamps 42 and 43 are stepped so as to avoid interference with the tip end 34 ′ of the middle clamp 34. There is.

In the above-described embodiment, as shown in FIGS. 12 to 14, the left and right clamp groups 30 and 40 are moved outward by 1
Although the stitches 63 and 64 are expanded at an angle of 80 ° or less to form the stitches 63 and 64 on the circumferential track, the present invention is not limited to this, and as shown in FIG.
As shown in FIG. 8, the left and right clamp groups 30 and 40 may be expanded outward from the parallel state at an angle of 180 ° or more. In this case, the above-mentioned fifth step S5,
In the sewing machine processing in the sixth step S6 (FIG. 2), the rotating arms 31, 4 are arranged so that one clamp group 30 is parallel to the sewing machine track M as shown in FIG. 18 (A).
1 is controlled to sew the belt-like portion 20a of the town cloth 20 in a straight line, and then the rotating arm 3 is arranged so that the other clamp group 40 is parallel to the sewing machine track M as shown in FIG.
1, 41 are controlled to sew the V-shaped portion 20b of the town cloth 20 in a straight line, and the surplus portion (hatched portion in FIG. 18B) is cut off by a cutter of the sewing machine. As described above, according to the sewing method of expanding both clamp groups 30, 40 by 180 ° or more, the V-shaped portion 20b of the town cloth 20 does not need to be bent in an arc shape with respect to the belt-shaped portion 20a and is arranged linearly. can do. As a result, the sewing work by the sewing machine can be performed stably.

Further, as shown in FIG. 19, for example, the middle clamp 34 is interposed only in one clamp group 30, and the tip portion 34 ′ of the middle clamp 34 is used as the gusset fabric 2.
It is extended according to the length of 0, and a groove 45 'for inserting the V-shaped portion 20b of the gusset fabric 20 is provided in this extended end portion 34',
The middle clamp 44 of the other clamp group 40 shown in FIG. 18 may be omitted.

[0036]

As described above, since the back panel-shaped gusset is intervened from the rear part of the panty part to the inner crotch part, the rear part is widened to allow a margin, and the fitting property of the hip part and the inner crotch part when worn. Will be good. Moreover, the automation of the process of entering the town greatly improves work efficiency.

[Brief description of drawings]

FIG. 1 is an explanatory view of a sewing process of a pantyhose with a back panel-shaped gusset according to the present invention, (A) shows a tubular stocking material, (B) shows a cutting step, and (C).
Shows an intervening state of a back panel-shaped gusset, (D) and (E) show stitches, and (F) shows a finished product.

FIG. 2 is a schematic plan view showing an embodiment of an apparatus for carrying out the method of the present invention.

FIG. 3 is a perspective view showing a structure in which a middle clamp is interposed between left and right clamp groups.

FIG. 4 is a stocking cloth attachment process diagram in the first step, in which (A) is a perspective view and (B) is a sectional view thereof.

FIG. 5 is a process diagram for installing the town cloth in the first step,
(A) is a perspective view and (B) is a longitudinal sectional view.

FIG. 6 is a crotch cutting process diagram in the second step.

FIG. 7 is a dough separation process diagram in the third step.

FIG. 8 is a perspective view showing a town cloth transfer process in a fourth step.

FIG. 9 is a plan view showing a town cloth insertion device.

10 is a partial cross-sectional side view of FIG.

FIG. 11 is a perspective view showing a state in which the town cloth is inserted into the groove of the middle clamp.

FIG. 12 shows a state in which a gusset cloth is inserted into the groove of the middle clamp, (A) is a perspective view, and (B) is a vertical cross-sectional view schematically showing the BB cross section of (A).

FIG. 13 shows a first sewing state in the fifth step of sewing, (A) is a perspective view, (B) is a schematic vertical sectional view of (A), and (C) is a seamed state of stockings. FIG.

FIG. 14 shows a second sewing state in the sewing process of the sixth step, (A) is a perspective view, (B) is a schematic longitudinal sectional view of (A), and (C) is a seamed state of stockings. FIG.

15A and 15B show another embodiment of the present invention, in which FIG. 15A is a process diagram for mounting a tubular gusset fabric, and FIG. 15B is a longitudinal sectional view thereof.

16 is a perspective view showing a delivery state of the tubular gusset fabric of FIG.

FIG. 17 is a diagram showing a second embodiment of the present invention, (A) is a perspective view using one medium clamp, and (B) is a partial side view thereof.

FIG. 18 is a plan view showing a third embodiment of the present invention,
(A) is a diagram showing a state in which one clamp group is set parallel to the sewing machine track, and (B) is a diagram showing a state in which the other clamp group is set parallel to the sewing machine track.

FIG. 19 is a plan view showing a fourth embodiment of the present invention.

FIG. 20 is a sewing process diagram of a conventional pantyhose with a diamond-shaped gusset.

[Explanation of symbols]

 11,12 Stocking material 13,14 Cutting edge 18 Panty part 18a Inner crotch part 18b Front part 18c Rear part 20 Back panel-shaped gusset material 20 'Upper edge part 20 "Lower edge part 20a Band part 20b V-shaped part 30,40 Clamp group 32,42 Upper clamp 33,43 Lower clamp 34,44 Medium clamp for town cloth 35 First groove 45,45 'Second groove

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[Procedure amendment]

[Submission date] May 20, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief explanation of the drawing

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[Brief description of drawings]

FIG. 1 is an explanatory view of a sewing process of a pantyhose with a back panel-shaped gusset according to the present invention, (A) shows a tubular stocking material, (B) shows a cutting step, and (C).
Indicates an intervention state of a back panel-shaped town.

FIG. 2 is an explanatory view of the sewing process following FIG. 1, in which (D) and (E) show stitches, and (F) shows a finished product.

FIG. 3 is a schematic plan view showing an embodiment of an apparatus for carrying out the method of the present invention.

FIG. 4 is a perspective view showing a structure in which a middle clamp is interposed between left and right clamp groups.

FIG. 5 is a perspective view of (A) a sectional view of the stocking cloth mounting process in the first step.

FIG. 6 is a process diagram for installing the town cloth in the first step,
(A) is a perspective view and (B) is a longitudinal sectional view.

FIG. 7 is a crotch cutting process diagram in the second step.

FIG. 8 is a dough separation process diagram in the third step.

FIG. 9 is a perspective view showing a town cloth transfer process in a fourth step.

FIG. 10 is a plan view showing a town cloth insertion device.

11 is a partial cross-sectional side view of FIG.

FIG. 12 is a perspective view showing a state in which the town cloth is inserted into the groove of the middle clamp.

13A and 13B show a state in which a gusset cloth is inserted into the groove of the middle clamp, FIG. 13A is a perspective view, and FIG. 13B is a vertical cross-sectional view schematically showing the BB cross section of FIG. 13A.

FIG. 14 shows a first sewing state in the fifth step of sewing processing, (A) is a perspective view, (B) is a schematic longitudinal sectional view of (A), and (C) is a stocking stitch state. FIG.

FIG. 15 shows a second sewing state in the sewing process of the sixth step, (A) is a perspective view, (B) is a schematic longitudinal sectional view of (A), and (C) is a seamed state of stockings. FIG.

16 (A) and 16 (B) show another embodiment of the present invention, in which (A) is a process for mounting a tubular gusset fabric, and (B) is a longitudinal sectional view thereof.

FIG. 17 is a perspective view showing a delivery state of the tubular gusset fabric of FIG. 16.

FIG. 18 is a view showing a second embodiment of the present invention, (A) is a perspective view using one medium clamp, and (B) is a partial side view thereof.

FIG. 19 is a plan view showing a third embodiment of the present invention,
(A) is a diagram showing a state in which one clamp group is set parallel to the sewing machine track, and (B) is a diagram showing a state in which the other clamp group is set parallel to the sewing machine track.

FIG. 20 is a plan view showing a fourth embodiment of the present invention.

FIG. 21 is a sewing process diagram of a conventional pantyhose with a diamond-shaped gusset.

FIG. 22 is a sewing process drawing that follows FIG. 21.

[Explanation of Codes] 11,12 Stocking material 13,14 Cutting edge 18 Panty portion 18a Inner crotch portion 18b Front portion 18c Rear portion 20 Back panel-shaped gusset material 20 'Upper edge portion 20 "Lower edge portion 20a Belt portion 20b V-shaped portion 30,40 Clamp group 32,42 Upper clamp 33,43 Lower clamp 34,44 Medium clamp for town cloth 35 First groove 45,45 'Second groove

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

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Claims (3)

[Claims] 1. A sewing method for panty hose in which a back panel-shaped gusset is inserted from the rear part of the panty part to the inner crotch part, wherein a pair of left and right upper clamps and a pair of left and right lower clamps that bite a pair of tubular stocking fabrics are provided. And a pair of left and right pairs individually having a first groove into which the strip-shaped part of the back panel-shaped gusset can be inserted by folding and a second groove into which the V-shaped part of the gusset can be inserted by folding. A preparatory step of interposing a middle clamp, and a state in which the pair of cylindrical stocking cloths are pressed and held by pressing the middle clamp from above and below with an upper clamp and a lower clamp, and the central opening of the stocking cloth is cut to the crotch part. And the cutting process of the stocking material that has been cut, biting the left and right clamp groups outward from the parallel state at an angle of 180 ° or less. To expose the cutting edge,
From the first groove of the pair of middle clamps, a back panel-shaped gusset material is folded in two in the length direction between the material separation step of separating the exposed cutting edge into upper and lower parts, and between the upper and lower separated cutting edges. A step of inserting and holding the gusset material to be inserted over the second groove, and after sewing one edge of the back panel-shaped gusset material to one cutting edge of the stocking material by a sewing process, the other edge of the gusset material Sewn to the other cut edge of the stocking fabric and to sew the cut edge of the remaining stocking fabric, the method for sewing pantyhose with back panel-shaped gusset. 2. In the dough separating step according to claim 1,
A sewing method for back panel-shaped pantyhose with a gusset, wherein the left and right clamp groups are expanded outward from the parallel state at an angle of 180 ° or more while biting the cut edge of the stocking material. 3. A middle clamp in which a first groove and a second groove are connected to each other between one of the left and right upper and lower clamps, and a back panel shape is provided in both of these grooves. The method of sewing back panel-shaped pantyhose with a gusset according to claim 1 or 2, wherein the belt-shaped part and the V-shaped part of the gusset cloth are inserted in two folds.