JP3156946B2 - Method and apparatus for sewing pantyhose with a back panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for sewing pantyhose in which a back panel-shaped town is interposed from a rear portion of a panty portion to an inner thigh portion.

[0002]

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

An outline of a sewing process of this pantyhose with a diamond-shaped town will be described with reference to FIGS.

[0004] First, in FIG.
Shows the stockings of the left leg and the right leg knitted by an ordinary circular knitting machine. After the left and right stockings are aligned left and right, they are held along lines 3 and 4 as shown in FIG. Then, the middle part sandwiched between the holding lines 3 and 4 is cut along the dotted line 5, the inner crotch part is cut open as shown in FIG. 3 (C), and the diamond-shaped town cloth 8 is inserted into the center of the crotch part. Then, a seam 6 as shown in FIG. 20 (D) and a seam 7 as shown in FIG. 20 (E) are formed by two-step sewing in parallel with the above-mentioned holding lines 3 and 4. Thus, a pantyhose 10 in which a diamond-shaped town 8 is interposed in the inner thigh as shown in FIG.

[0005]

By the way, in the conventional pantyhose with a diamond-shaped town, the fitting property of the inner crotch part 9a of the panty part 9 can be obtained when worn, but the front part 9b and the rear part 9c are completely the same. Due to the dimensions, the hips of the wearer are strongly tensed, and the comfort is not good. In particular, in recent years, the wearer has a prominent hip protruding in shape, and the increase in stretch at the rear portion 9c causes a decrease in fit when worn.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and it is possible to improve a fitting property when worn from the rear part of a panty part to an inner crotch part, and to provide a back panel-shaped town suitable for automation of sewing work. It is an object of the present invention to provide a method and an apparatus for sewing pantyhose with pan.

[0007]

In order to achieve the above object, a first aspect of the present invention is a method of sewing pantyhose in which a back panel-like town is interposed from a rear portion of a panty portion to an inner crotch portion. A dough insertion step of inserting a pair of cylindrical stocking dough into each of a pair of upper clamps and a pair of left and right lower clamps, and a pair of left and right upper middle clamps and a pair of left and right lower middle clamps between the upper and lower clamps. With the clamps in place, the upper and lower clamps press and hold a pair of stocking fabrics from above and below, and at the same time, the upper and lower middle clamps and the lower and lower middle clamps respectively sandwich the inner facing parts of the upper and lower stocking fabrics. Pressure holding, a cutting step of cutting the inner facing portion of this stocking cloth from the central opening to the crotch,
A cloth separating step of expanding the clamp group outward from the parallel state while holding the cut edge of the cut stocking cloth in a parallel state, exposing the cut edge, and separating the exposed cut edge vertically. After inserting the back panel-shaped gusset in the longitudinal direction between the cut edges separated vertically, and inserting the gusset holding the nip between the upper middle clamp and the lower middle clamp After sewn one edge of the back panel-shaped town fabric to one cut edge of the stocking fabric by a holding process and sewing, the other edge of the town fabric is sewn to the other cut edge of the stocking fabric. And a sewing step of sewing the cut edge of the remaining stocking fabric.

In the second invention, a clamping mechanism for mounting a cylindrical stocking material vertically and a cloth mounting position for mounting a pair of stocking materials on a clamp mechanism on a line where the clamping mechanism intermittently moves are sandwiched from above and below by the clamping mechanism. A cutting position for cutting the central opening of the pressed stocking fabric to the crotch portion, and a fabric for expanding and exposing the cutting edge while holding the cutting edge of the cut stocking fabric, and separating the cutting edge vertically. Opening position, insert the back panel-shaped gusset in two between the cutting edges of the stocking material separated vertically, insert the gusset, and cut the edge of the gusset and the stocking material A sewing position to sew the edge and the remaining cutting edge of the stocking cloth, and the clamp mechanism is moved from the parallel state. A pair of left and right upper clamps that can be opened freely and a pair of left and right lower clamps that can be opened from the parallel state are opposed to each other so that they can move up and down, and can move back and forth. Formed by providing an upper middle clamp that can be expanded from the state and can contact and separate from the upper clamp, and a lower middle clamp that can also open and close from the parallel state and can freely contact and separate from the lower clamp. This is the configuration that has been performed.

The approach and rebound of the upper clamp and the upper middle clamp and the lower clamp and the lower middle clamp can be performed by using the attraction and repulsion of magnets embedded in the respective opposing surfaces.

[0010]

According to the present invention, since the back panel-shaped town is interposed from the rear part of the panty part to the inner crotch part, the rear part of the panty part is wider than the front part. Therefore, strong tension is not applied to the hips of the wearer, and the fit during wear is improved. Furthermore, since the back panel-like town can be interposed in the stocking fabric by automatic sewing, a highly efficient sewing operation can be realized for a pantyhose manufacturer.

[0011]

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

[0012] In the sewing process of the pantyhose with the back panel-like gusset according to the present invention, the gusset portion is formed at a position extending from the rear portion of the panty portion to the inner groin portion after the inner crotch portion of the tubular stockings left and right is cut. By folding the back panel-shaped town fabric in two in the length direction, inserting it into the inner crotch from the rear part of the cut left and right tubular fabric and sewing it, the left and right aligned tubular This is a method in which a back panel-shaped town is interposed from the back between the fabrics to the inner thigh.

The outline of the sewing process will be described in detail with reference to FIGS. First, in FIG.
And 12 show the stockings of the left leg and the right leg, respectively, knitted by an ordinary circular knitting machine. After the left and right stocking fabrics 11 and 12 are aligned left and right, as shown in FIG.
3 and 14, and a middle part sandwiched between the holding lines 13 and 14 is cut along a dotted line 15, and the rear part of the panty portion is cut as shown in FIG. Then, the back panel-shaped town cloth 20 is inserted into a portion cut open from the central opening to the crotch portion. In addition, the front part of the panty part is only the cut edge of the stocking cloth, and there is no town cloth. Thereafter, a seam 16 as shown in FIG. 2 (D) and a seam 17 as shown in FIG. 2 (E) are formed by two-step sewing in parallel with the upper holding lines 13 and 14. Thereby, the back panel-shaped town 20 extends from the rear part 18c (band-shaped town part 20a) of the panty part 18 to the inner crotch part 18a (V-shaped town part 20b) as shown in FIGS. The intervening pantyhose 19 is obtained.

The pantyhose 19 with the back-panel-shaped gusset thus completed is different from the conventional pantyhose with a diamond-shaped gusset.
8 has a margin in the size of the rear portion 18c, and since the gusset 20 is stretchable in the vertical and horizontal directions, it not only fits the wearer's hips but also does not damp from the hips to the inner thighs. It will be comfortable to wear. Furthermore, the intervention of the back panel-shaped town cloth 20 reduces the stretch from the hip to the inner crotch during the exercise of the wearer, and also eliminates the drawback that the stitch is broken.

Next, the sewing process of the pantyhose with the pack-panel-shaped gusset will be described in detail with reference to FIGS.

FIG. 4 is a plan view schematically showing a sewing apparatus for carrying out the method of the present invention, and a pair of right and left clamp groups is provided on a sliding plate 21 which runs intermittently in a direction of an arrow a on a circumferential track. clamping mechanism consisting of 30, 40 is placed in the running direction in the arrangement of regular intervals, the position of each clamping mechanism is stopped, the dough mounting position P ₁ for mounting a pair of hose material was pinched by the clamp mechanism stockings Cutting position P ₂ for cutting the central opening of the fabric to the crotch
When, to expose by expanding the left cutting edges have bitten the cut edges of the cut hose material, the dough expanded position P ₃ for separating the cut edge up and down between the cutting edges of the hose material separated vertically a back panel-like gusset material inserted in the clamshell in a gusset material insertion position P ₄ to sandwich the gusset material, the angle changing position P ₅ for changing the clamping mechanism gusset material is inserted into the angle of the sewing
When the upper switch of the upper cutting edges Tomachi fabric hose material
First sewing position P for sewing the edge with the first sewing machine 22
_6, the lower side of the lower cutting edge Tomachi fabric of the hose material
Cutting edge and the upper and lower cutting edges of the remaining stocking fabric
It is successively set to the second sewing position P ₇ which sewn by the second sewing machine 23. 017] The gusset material insertion position P ₄ of gusset material supply mechanism 51 on the inner side are arranged so as to face the clamping mechanism, the lateral fabric mounting positions P _1, gripping mechanism 53 of the gusset material insertion plate 52 is arranged The dough insertion plate 52 is carried by the town dough transport mechanism 54 for transporting the town after the town dough is mounted to the town dough supply mechanism 51.

As shown in FIGS. 5 to 8, the clamp mechanism includes upper and lower clamps 32 and 33 in which one clamp group 30 is supported on a rotating arm 31 and an upper and lower clamp 3.
The upper and lower clamps 34 and 43 are located between the upper and lower clamps 42 and 43, and the other clamp group 40 is also located between the upper and lower clamps 42 and 43 supported by the rotating arm 41. Upper middle clamp 44
And a lower middle clamp 45.

The left and right arms 31 and 41 are rotatably supported by one shaft.
The 41 rotation of the expansion is one clamp group 30 and the other clamp group 40 of the from each other parallel state (state in fabric mounting position P ₁ in FIG. 4) in a circumferential trajectory line shape (FIG. 4
Fabric spreader position P ₃ and can state) in FIG. 9, can be closed in a parallel state and conversely from the circumference trajectory line shape.

The upper and lower clamps 32, 33 and 42, 43 can be freely moved up and down and moved back and forth by electromagnets 36, 46, and the upper middle clamp 34 or 44 is connected to a shaft 37 with respect to the upper clamps 34, 42 as shown in FIG. The upper middle clamps 35 and 45 are lower
The upper and lower clamps 32, 33 and 42, 43 can be moved up and down with the shaft 38 as a guide relative to the upper and lower clamps. At the time of the reciprocating movement, the two middle clamps 34, 35 and 44, 45 are in a state of being vertically separated between their facing surfaces.

Upper clamps 32, 42 and upper middle clamp 3
4, 44 and lower clamps 33, 43 and lower middle clamp 3
The upper and lower clamps 32, 33 and 42,
A magnet mechanism is provided to attract the upper clamps 32, 42 and the upper middle clamps 34, 44 and the lower clamps 33, 43 and the lower middle clamps 35, 45 to each other when approaching and moving away from each other, and to release the above attracted portion when moving away from each other. It is.

The magnet mechanisms of both clamp groups 30 and 40 have the same structure, and the magnet mechanism of one clamp group 30 is shown in FIGS.
Instead of the description of the zero magnet mechanism.

The magnet mechanism is provided with grooves 61, 62 along the length direction on the lower surface of the upper clamp 32 and the upper surface of the lower clamp 33, and slide bars 63, 64 in the grooves 61, 62 in the length direction. Are formed so as to be movable along the upper and lower ends of the upper and lower clamps 32 and 33, and are formed at the ends of the sliding bars 63 and 64 so as to be pivotally mounted by levers 65 and 66 at the ends of the upper and lower clamps 32 and 33. The racks 69, 70 are engaged with each other, and the sliding bars 6 are moved by rotating the levers 65, 66.
3, 64 are given a constant stroke advance and retreat.

Permanent magnets 71 are buried at predetermined intervals in the longitudinal direction on the opposing surfaces of the sliding bars 63 and 64 and the upper middle clamp 34 and the lower middle clamp 35.

As shown in FIGS. 7 and 8, the arrangement of the permanent magnets 71 is such that when the sliding bars 63, 64 are at one end, the magnets 71 facing up and down have the same polarity and repel, and Bar 6
When the magnets 3 and 64 move toward the other end by the stroke b, the magnets 71 facing up and down are set so that different poles face each other and are attracted.

As described above, the rotation of the levers 65 and 66 causes the upper clamp 32 and the upper middle clamp 33 and the lower clamp 34 and the lower middle clamp 35 to be separated and attracted.

FIG. 10 shows the town dough 20, which is formed in a cylindrical shape in advance, and is used for transferring the town dough 20 toward the town dough supply mechanism 51 by the fabric transfer mechanism 54 in FIG. As described above, the town cloth insertion plate 52 is used.

The dough insertion plate 52 has a rectangular shape, and has two protruding ridges 72, 72 along the longitudinal direction of the central portions on both sides, and concave grooves 73, 73 for cutting are formed therebetween.

The gusset material insertion plate 52 shown in FIG. 10 (C) is one end (the welt side) and narrow tapered, the side end portion when cutting the gusset material is obtained which becomes narrow Is shown. Such a cloth insertion plate 52 shown in FIG.
In the case where the welt side has a narrow tapered shape, as shown in FIG. 3 (G), the gusset side has a narrow width on the welt side, so that the fit of the hip portion and the inner crotch portion at the time of wearing is good and the waist portion has It fits tightly.

[0030] To insert a cylindrical gusset material 20 in the gusset material insertion plate 52, as shown in FIG. 4, on the side of the fabric attachment positions P _1, bitten one end of the insertion plate 52 A gripping mechanism 53 is provided.
12 and receives the town dough insertion plate 52 and transports it to the town dough supply mechanism 51.
As shown in (B), a lifting body 77 that moves up and down by a cylinder 76 on a traveling body 75 that moves along a guide rail 74 disposed above the gripping mechanism 53 and the town cloth supply mechanism 51.
The provided, formed by providing a clamp 79 to open and close with the cylinder 78 in the lower portion of the elevating member 77, the gusset material inserted Nyuita 52
The center portion of one side edge along the longitudinal direction is clamped by the clamp 79, and the cloth insertion plate 52 is transported.

As shown in FIGS. 11 and 12, a moving table 81 arranged on a base table 80 moves along a rail 82 so as to be movable forward and backward with respect to a clamp mechanism. Clamps 84, 84 are provided on the upper portions of the side walls 83, 83 provided at both ends of the cloth insertion plate 52 to hold both ends of the town insert plate 52.

The clamps 84 are arranged as shown in FIG.
And a movable claw 87 that moves up and down around a shaft 86 above the fixed claw 85, and the town dough insertion plate 52 supplied by the town dough transport mechanism 54 is fixed by the fixed claw 85. The insertion plate 52 is received by receiving and
Hold both ends horizontally.

On the movable table 81, there is provided a horizontal table 90 which is horizontally moved by a rail 88 and a feed mechanism 89. On this horizontal table 90, there is provided a movable table 91 which moves forward and backward in the same direction as the movable table 81.
Heat cutter 9 moving up and down and moving back and forth on movable table 91
2, 92 are mounted.

The sewing apparatus according to the present invention is configured as described above. Next, a sewing method will be described.

At first, in the fabric attachment positions P ₁ in FIG. 4, a pair of tubular hose material on the left and right clamp groups 30, 40 by the operator is inserted. That is, one stocking cloth 11 is inserted across the upper clamps 32 and 42 in a parallel state, and another stocking cloth 12 is inserted into the lower clamps 33 and 43 (FIG. 13).
And the state of FIG. 15 (B)). Thereafter, the upper and lower clamps 32, 42, 33, 43 are respectively moved to the middle clamps 34, 3 as shown in FIG.
5, 44, 45, and the inner crotch fabric serving as panty portions of the stocking fabrics 11, 12 is overlapped and sandwiched therebetween.

On the other hand, as shown in FIG. 4, the fabric attachment positions P _1, the gusset material insertion plate 52 which is bitten to gripping mechanism 53, and insert the gusset material 20 which is formed in advance cylindrical, the insert plate 52 previously transferred to the gusset material supply mechanism 51 to wait conveying mechanism 54 Demachi material insertion position P ₄ a.

Next, the left and right clamp group 30, 40 when moved to the cutting position P _2, the cutter 93 shown in FIG. 14 is advanced to the central opening of the tubular fabric 11 and 12,
The dotted line portion 15 of the held fabric is cut.

The scissors-shaped cutter 93 is configured to reciprocate back and forth by an appropriate driving device. After the cloths 11 and 12 are cut, the clamp groups 30 and 40 hold the cloths 11 and 12. Turning to the dough expanded position P ₃ from the cutting position P ₂ while continuing. At this time, the arms 31 and 41 of the clamp groups 30 and 40 are expanded at an angle of 180 ° or more to the state shown in FIG. 9, and the cut edges 13 and 14 of the fabrics 11 and 12 are exposed to the outside.

That is, the right and left clamp groups 30 and 40 have a substantially triangular shape having a mountain-shaped apex at their free ends.

[0040] and in the dough expanded position P _3,
Cutting edges 13, 14 of the fabric 11, 12 vertically separated by appropriate means as in Fig. 9, while maintaining the separated state, proceeds to gusset material insertion position P _4.

[0041] The gusset material insertion position P _4, the gusset material insertion plate 52 which is held on standby in gusset material supply mechanism 51, the insertion plate 52 moves forward movement, as indicated by one-dot chain lines in FIG. 12 (B) The upper middle clamp 34, which is separated vertically,
The upper and lower clamps 32, 42 and 33, 43 move closer to each other, and the upper and lower middle clamps 34, 35 and 44, 45 move the cloth insertion plate 52 from above and below. When sandwiched, heat cutters 92, 9
2 moves laterally after approaching, and the fabric 20 is vertically
When the gusset material insertion plate 52 is retreated after cutting along the direction 3, 3, 73, the gusset material 20 after cutting is cut into upper and lower middle clamps 34, 35 and 44, as shown in FIG.
It is passed between 45.

The dough insertion plate 52 is vertically clamped by the middle clamp 3.
4, 35 and 44, 45 into the fixed position,
When the town fabric 20 is cut along the lines 3 and 73, FIG.
(B) As shown in FIG.
14 and the upper and lower cutting edges 20a and 20b of the gusset 20 inserted in two, the upper edge portion 20 'and the lower edge portion 20 "of the end portion have a triangular shape, and the cutting edge 13a has a triangular shape. , 14 projecting outward.

In this manner, the upper and lower middle clamps are folded in two.
Town dough 20 inserted in 34, 35 and 44, 45
Is pressed and held from above and below by a sponge or rubber 94, 95 shown in FIG.

In this state, the left and right clamp groups 30, 40
Transfers from gusset material insertion position P ₄ to the angle change position P _5, widening the angle is changed to less than 180 °, then moves to the first sewn position P _6.

[0045] At this time, FIG. 17 (A), (B) stocking the upper cutting edge 13 and the gusset raw land 2 0 of the upper cutting edge 20a and the first sewing machine became circular path line as 22
(See FIG. 4), the upper seam 96
(Corresponding to the seam 16 in FIG. 2D) is formed.

At the time of forming the stitches 96, the surplus fabric portion (the dashed line portion in FIG. 17A) of the upper edge portion 20 ′ protruding from the cutting edge 13 is cut off by the cutter of the sewing machine 22. When sewing by the first sewing machine 22, the lower cutting edge 14 of the stocking and the
The lower cutting edge 20b is bent downward by the guide plate 97 as shown in FIG.

[0047] Then, by passing through the second sewing machine 23 (see FIG. 4) on the way moving to the second sewing position P _7, as shown in FIG. 18 (A), (B), first Sutokki <br / Cutting edge 14 on the lower side of the fabric and lower cutting edge 2 on the town fabric 20
0b is sewn, and then the remaining
The cutting edges 13 and 14 are sewn (see FIG. 2 (F) and FIG. 3).
Seam by being part) of Nti front part 18b 9
8 (corresponding to the seam 17 in FIG. 2E) is formed.

At this time, the surplus fabric portion (the dashed line portion in FIG. 18A) of the lower edge portion 20 ″ of the town fabric projecting from the cutting edge 14 is cut off by the cutter of the sewing machine 23 in the same manner as described above. become.

At the time of sewing by the second sewing machine 23, the upper seam 96 of the stocking is folded upward by another guide plate 99 as shown in FIG. 18B.

As described above, by the action of the guide plates 97 and 99, the stocking and the town shown in FIG.
The seam 96 for sewing the upper cutting edges 13 and 20a of the ground and the lower cut of the stocking fabric and the town fabric shown in FIG.
Sew on edges 14 and 20b and over rest of stockings
The stitches 98 for sewing the lower cutting edges 13 and 14 can be automatically sewn respectively.

The two-step sewing operation by the two sewing machines 22 and 23 shown in FIG.
_When returning to ₁ , the left and right clamp groups 30 and 40
Due to the rotation of 1, 41 (FIG. 5), the orbit is closed from the line of the circumferential orbit to the original position parallel.

Thereafter, the excitation of the electromagnet is cut off, the holding of the cloths 11 and 12 which have been continued up to that time is released, and the sewing cloth is extracted. Then, the stocking cloth is mounted on the clamp groups 30 and 40 again. The above series of operations is repeated.

[0053] As described above, the operator hose material 11 positioned in front of the fabric attachment positions P ₁ in FIG. 4,
Setting 12 on the left and right clamp groups 30 and 40;
By merely performing the operation of inserting the back panel-shaped gusset 20 into the gusset insertion plate 52, the pantyhose with the back panel-shaped gusset having all the seams can be automatically sewn efficiently.

In addition, since the right and left clamp groups 30, 40 having the same function are successively moved while moving on the circumferential work track, the sew-in operation is very incomparable to the conventional sewing operation by the operator. Since the sewing process is performed with high efficiency, the cost reduction of the product becomes remarkable, and it greatly contributes to the rationalization of production.

In the above description, only the circumferential trajectory has been described, but an elliptical trajectory and trajectories having other shapes can be easily considered from the present invention.

[0056]

As described above, since the back panel-shaped town 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 fit of the hip part and the inner crotch part when worn. Becomes better. In addition, the automation of the staking process greatly improves work efficiency.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a sewing process of a pantyhose with a back panel-like gusset according to the present invention, wherein (A) shows a tubular stocking cloth and (B) shows a cutting step.

FIG. 2 is an explanatory view of a sewing process following FIG. 1, wherein (C) shows an intervening state (D) and (E) of a back panel-like town, and (F) shows a finished product.

3 (G) is a perspective view showing a main part of the finished product in the description of the sewing process following FIG. 2; FIG.

FIG. 4 is a schematic plan view showing an embodiment of an apparatus for performing the method of the present invention.

FIG. 5 is a perspective view of a clamp mechanism showing a structure in which a middle clamp is interposed between right and left clamp groups.

FIG. 6A is a longitudinal sectional side view of a clamp group in the clamp mechanism, and FIG. 6B is an enlarged longitudinal sectional view of a main part of the same.

7A is a plan view of an upper clamp in a clamp group, FIG. 7B is a partially cutaway plan view of a lower clamp, and FIG. 7C is a plan view of a middle clamp.

FIG. 8 is a longitudinal sectional view showing a main part of the clamp group.

FIG. 9 is a perspective view showing a state in which the stocking material and the town material are held by the clamp mechanism.

10A is a perspective view of a town fabric, FIG. 10B is a perspective view of a town fabric insertion plate, and FIG. 10C is a perspective view showing another example of a town fabric insertion plate.

FIG. 11 is a plan view of a town fabric supply mechanism.

12 (A) is an enlarged front view of the clamp in the above, and FIG. 12 (B) is a vertical sectional front view of a town fabric supply mechanism.

FIG. 13 is a perspective view showing a state where the stocking cloth is attached to the clamp mechanism.

FIG. 14 is a perspective view showing a step of cutting stocking dough.

15A is a cross-sectional view showing the clamp group in the middle of separation, FIG. 15B is a cross-sectional view in which the stocking cloth is mounted in the separated state, FIG. 15C is a vertical cross-sectional view when approaching, and FIG. Sectional drawing which attached stocking cloth in the state of (C).

FIG. 16A is a perspective view of a stocking and a town cloth held by a clamp mechanism before a sewing process, and FIG. 16B is a longitudinal sectional view schematically showing FIG.

17A and 17B show a first sewing state in the fifth step of sewing, where FIG. 17A is a perspective view, FIG. 17B is a schematic longitudinal sectional view of FIG. 17A, and FIG. FIG.

FIGS. 18A and 18B show a second sewing state in the sixth step of sewing, in which FIG. 18A is a perspective view, FIG. 18B is a schematic longitudinal sectional view of FIG. 18A, and FIG. FIG.

FIGS. 19A to 19C are perspective views showing a sewing step of a conventional pantyhose with a diamond-shaped town.

20 (D) to (F) are perspective views showing a sewing process following FIG. 19;

[Explanation of symbols]

11,12 Stocking cloth 13,14 Cutting edge 18 Panty part 18a Inner crotch part 18b Front part 18c Rear part 20 Back panel-shaped town cloth 20 ' Upper edge part 20 " Lower edge part 20a Upper cutting edge 20b Lower cutting edge 30,40 Clamp Groups 32,42 Upper clamp 33,43 Lower clamp 34,44 Upper middle clamp 35,45 Lower middle clamp

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) D05B 23/00 A41B 11/14

Claims (3)

(57) [Claims] 1. A pantyhose sewing method in which a back panel-shaped town is interposed from a rear portion of a panty portion to an inner thigh portion, wherein a pair of left and right upper clamps and a pair of left and right lower clamps are paired. In a state where a pair of left and right upper middle clamps and a pair of left and right lower middle clamps are arranged between the upper clamp and the lower clamp, and a pair of stocking doughs is vertically Press and hold, and simultaneously press and hold the inner facing part of the upper and lower stocking fabric with the upper clamp and upper middle clamp and the lower clamp and lower middle clamp, and cut the inner facing part of this stocking fabric from the central opening to the crotch Cutting process, the clamp group from the parallel state while holding the cut edge of the cut stocking cloth Expanding outward, exposing the cut edge, separating the exposed cut edge vertically, and separating the back panel-shaped town dough between the vertically separated cut edges. After inserting the fold in two directions, inserting and holding the gusset between the upper middle clamp and the lower middle clamp and holding one edge of the back panel-like gusset by sewing And sewing the other edge of the town cloth to the other cutting edge of the stocking fabric, and sequentially sewing the cutting edges of the remaining stocking fabric. A characteristic method of sewing pantyhose with a back panel-shaped town. 2. A dough mounting position for mounting a pair of stocking cloths on a clamp mechanism on a line where a clamp mechanism for mounting a tubular stocking cloth vertically moves intermittently, and a stocking cloth clamped from above and below by the clamp mechanism. A cutting position for cutting the central opening of the fabric to the crotch portion, and a cloth spreading position for expanding and exposing the cutting edge while holding the cutting edge of the cut stocking cloth, and separating the cutting edge vertically, Insert the back panel-shaped gusset in two between the cutting edges of the stocking material separated vertically, insert the gusset material to sandwich the gusset, and the edge of the gusset, the cut edge of the stocking material and the A sewing position for sewing the remaining cutting edge is set, and the clamp mechanism is opened from the parallel state. A pair of right upper clamps and a pair of left and right lower clamps that can be expanded from the parallel state are opposed to each other so as to be able to approach and reciprocate up and down. An upper middle clamp that is freely movable and can be freely moved toward and away from the upper clamp, and a lower back clamp that is also provided as a pair of left and right sides that can be freely opened from a parallel state and can be freely moved toward and away from the lower clamp. A sewing machine for pantyhose in a panel-shaped town. 3. The method according to claim 2, wherein the approaching and reciprocating movement of the upper clamp and the upper middle clamp, and the lower clamp and the lower middle clamp is performed by using attraction and repulsion of magnets embedded in the respective opposing surfaces. A sewing device for pantyhose with a back panel-shaped town.