JP2649005B2 - Sewing method of tape-like fabric - 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 for sewing a tape-like material rationally around a peripheral edge of a tubular material having a cutout.

[0002]

2. Description of the Related Art Conventionally, for example, in a pants 1 as shown in FIG. 1, when a tape-shaped cloth 3 formed in a trumpet shape is sewn around a periphery of a skirt 2, as shown in FIG. Is provided with a cutout 4 in advance, and the tape-shaped cloth 3 is sewn from the position of the cutout 4.

[0003]

However, since the V-shaped notch 4 is provided in the cylindrical skirt 2, the sewing operation of the tape-shaped cloth 3 to the periphery of the skirt 2 becomes complicated.
It was necessary to sew the tape-shaped cloth 3 around the skirt 2 exclusively by hand, and automation of sewing was difficult.

[0004]

According to the present invention, the following technical measures have been taken to achieve the above object. That is, a V-shaped notch is provided in a part of the peripheral portion of the cylindrical fabric,
And while performing the fabric edge control via the fabric edge control member,
In the method of sewing the tape-shaped material to the material edge of the cylindrical material, first, the edge portion of the cylindrical material from the cutout portion to the rear position is folded back to the cylindrical material side, and the folded portion is located on the side of the presser foot. In the state positioned outside the tape, the notch is bitten under the presser foot, and the tape-shaped cloth is sequentially sewn to the edge of the tubular cloth, and the notch makes one round to reach the front position of the presser foot again. When
The folded tape-shaped material is locked via a locking piece, and the tape-shaped material is sewn with the folded portion positioned outside the side of the presser foot.

[0005]

According to the present invention, when a tape-like material is sewn to the end of a cylindrical material having a V-shaped notch in a part of the peripheral portion, first, a cylinder extending from the notch portion to a rear position is sewn. The edge of the tubular fabric is folded back to the tubular fabric side, and the folded portion is positioned outside the presser foot, and the cutout portion is bitten under the presser foot to tape the edge of the tubular fabric. Fabrics are sequentially sewn. Next, when the notch makes a full circle and reaches the front position of the presser foot again, the folded tape-shaped material is locked via a locking piece, and the folded portion is positioned on the side of the presser foot. In this state, the tape material is sewn again, and the tape material is securely sewn around the cylindrical material.

【Example】

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 10 is a sewing machine, 11 is a presser foot, 12 is a sewing needle, 13 is a sewing surface of the sewing machine, and 14 is a tape-shaped cloth guide formed in a trumpet shape. A jig 15 is fixed to the front front of the sewing surface 13 by a guide plate formed in an arc shape.
5B are air injection pipes provided on the sides of the guide plate 15, respectively.

Reference numeral 16 denotes a locking piece provided in front of the tape-shaped cloth guiding jig 14, which is rotatably provided on a support shaft 17 provided on the sewing surface 13, and 18 is an air shaft provided by being appropriately supported. The locking piece 16 is rotatably connected to a piston 19 of the cylinder 18 by a cylinder.

Reference numeral 20 denotes a conventionally known material edge controlling member which is provided so as to be able to freely contact with and separate from the sewing surface 13,
Numeral 0 is for controlling the edge of the fabric by a known means as described in, for example, Japanese Utility Model Publication No. 4-1909.
.. Are provided, and the dough is fed through the dough feed roller 21, and the dough edge is controlled via the small roller 22 in the right and left directions of the dough edge in the direction perpendicular to the dough advancing direction. It is.

Reference numeral 23 denotes a plate-like rod which is rotatably provided on a support shaft 24 provided on the sewing surface 13 and which is provided with a rod 23.
The material end control member 20 is connected appropriately, and the rod 23 is further provided with a suitable motor 25 so as to drive the material end control member 20 appropriately.

Reference numeral 26 denotes an air cylinder for operating the plate-like rod 23, which is provided at a position above the sewing surface 13 so as to be rotatably supported, and which rotatably connects the rod 23 to a piston 27 of the cylinder 26. There is a pressing rod 28 fixed to the plate-like rod 23, and the tape cloth 3A in a free state sewn to the cutout 4 of the cylindrical cloth 5 through the rod 28 as described later. Is pressed.

Reference numeral 30 denotes a cloth feeding roller provided at a position above the sewing surface 13, which is provided so as to be able to freely contact with and separate from the sewing surface 13, and 31 denotes a motor which is appropriately fixed and provided at a position above the sewing surface 13. A support frame 32 is rotatably provided on the motor 31, and a belt 33 is provided on the support frame 32, the belt 33 is driven via the motor 31, and the fabric feeding roller 30 is rotated. is there.

Reference numeral 35 denotes an air cylinder for raising and lowering the support frame 32. The air cylinder 35 is provided above the sewing surface 13 so as to be pivotally supported, and the support frame 32 is rotatably connected to a piston 36 of the cylinder 35.

Reference numeral 50 denotes a cutter for cutting the tape-like material 3.
The lower blade 52 is fixed to the rear end of the sewing surface 13, and the upper blade 51 is formed of a sewing surface 1.
3 is fixed to a support shaft 53.

Numeral 54 denotes an air cylinder for operating the cutter 50, which is suitably supported on the sewing surface 13 and which rotates a piston 56 of the cylinder 54 around a rod 55 fixed to the support shaft 53. It is movably connected.

Reference numeral 57 denotes a guide rod provided on the rear end side of the sewing surface 13 for guiding the tubular cloth 5. Reference numeral 60 denotes a photoelectric tube for sensing the cylindrical fabric 5, and the photoelectric tube 60 is a presser foot 1.
1 is provided at the front position.

In the above embodiment, when sewing the tape-shaped cloth 3 formed in a trumpet shape to the skirt 2 of the pants 1 by a known means, that is, by sewing from the position of the V-shaped notch 4 of the skirt 2 In doing so, first, the fabric edge is manually folded back to the tubular fabric 5 side as shown in FIG. 4 from the position 0-W of the cutout portion 4 to the portion WVU located at the rear end, and then folded back. The part 6 is positioned outside the side of the presser foot 11 so as not to be locked by the presser foot 11.

Next, as shown in FIG.
-P is positioned below the presser foot 11, and the presser foot 11 is lowered onto the sewing surface 13 to press the portion 0-P, and at the same time, the cloth edge control member 20 and the cloth feed roller 30 are moved. By lowering them onto the sewing surface 13, respectively, the tubular cloth 5 is pressed on the sewing surface 13 (see FIG. 14).

Next, when the sewing machine 10 is driven, the cloth edge control member 20 and the cloth feeding roller 30 are driven, and the cloth edge of the cylindrical cloth 5 is fed out while the position thereof is controlled. Tubular fabric 5 at hem 2
The tape-shaped cloth 3 is sequentially sewn 6 to the end portions PQRST-.

At the same time as the sewing machine 10 is driven, a counter (not shown) provided on the sewing machine 10 starts counting the number of rotations of the sewing machine, that is, the number of stitches.

As described above, the tubular fabric 5 is fed out while the fabric edge is being controlled, and the tape-like fabric 3 is sewn 6 around the skirt portion 2. As shown in FIG. 6, when the tape material 3A reaches the guide plate 15 formed in an arc shape, the tape material 3A in a free state is naturally inverted by its own weight, and is sewn 6 to the cylindrical material 5. It is superimposed on top and hangs down.

Next, when the portion of the notch 4 at the sewing start position further reaches the vicinity of the cloth edge controlling member 20, the tape cloth 3A in the polymerized free state as shown in FIGS. It is pressed via a guide rod 28 provided on the plate-like rod 23 and passes under the rod 28 to be folded.

As described above, the tape-shaped cloth 3 is sewn to the periphery of the hem 2 while the cylindrical cloth 5 is controlled at the cloth end and the cloth is fed out. When the part has made almost one round and has returned to the vicinity of the presser foot 11 again, that is, when the part of the notch 4 is sensed via the photoelectric tube 60 as shown in FIG. 10, the sewing machine 10, the cloth end control member 20 and The driving of the fabric feeding rollers 30 is stopped respectively.

Next, the locking piece 16 provided in front of the tape-shaped material guiding jig 14 is lowered onto the sewing surface 13 through the operation of the air cylinder 18, and as shown in FIG. At the same time, the cloth edge control member 20 and the cloth feed roller 30 return to the original upper positions, respectively. Then, the sewing machine 10 is driven, and the tape-shaped cloth 3 is further sewn.

Next, the air injection pipes 15A and 15B are respectively operated to inject air, and as shown in FIG.
1 is positioned on the front side of the cylindrical guide plate 15.
Then, the tape-shaped cloth 3 is further sewn to the unsewn portion of the tubular cloth 5 on the side of the sewing surface 13.

Next, when the counter for counting the number of stitches provided on the sewing machine 10 reaches a required count number, the drive of the sewing machine 10 is stopped, and at the same time, the cutter is placed in a state where the tubular cloth 5 is hung down as shown in FIG. In operation 50, the tape-shaped material 3 is cut, and as shown in FIG. 16, the tape-shaped material 3 is sewn to the periphery of the hem 2 and the free tape-shaped material 3A, 3B is sewn to the notch 4. The worn pants 1 are obtained. The free tape-shaped fabrics 3A and 3B sewn to the cutouts 4 are appropriately cut and sewn in a later step by a known means.

Another embodiment for reversing the free tape fabric 3A as described above will be described below with reference to FIGS. 14 and 15. Reference numeral 40 denotes a support piece fixed to the rear end of the presser foot 11, and reference numeral 41 denotes a bent piece provided so as to be reciprocally movable.
3 and reciprocates on the upper surface of the support piece 40 to reverse and bend the tape cloth 3 as described later. In addition, the heater 41 (not shown) may be built in the bending piece 41 as needed.

Reference numeral 42 denotes an air cylinder for reciprocating the bent piece 41, which is fixed to a fixed piece 43 which is appropriately fixed. The bent piece 41 is fixed to the piston 44 of the cylinder 42, and is inserted through the fixed piece 43. The guide shaft 45 is fixed to the bent piece 41.

Numeral 46 denotes an air jet pipe for reversing the tape cloth 3, which is provided on a guide rod 57. Reference numeral 61 denotes a photoelectric tube for sensing the cylindrical fabric 5, and the photoelectric tube 61 is provided at a side position of the support piece 40.

A method of inverting the free tape material 3A will be described. When the position OP of the notch 4 is advanced through the photoelectric tube 61 as shown in FIG. Air is injected from the hole 46, and the tape-shaped cloth 3 in a free state sewn to the portion OP is sewn.
A is lifted upward through the air injection.

Next, the bent piece 41 is connected to the air cylinder 42.
The floating of the tape cloth 3A is reversed to the cylindrical cloth 5 side as shown in FIG.
It is bent and the sewing of the tape-like material 3 is performed as described above.

[0031]

As described above, according to the present invention, a V-shaped notch is provided in a part of the peripheral portion of the cylindrical fabric, and the fabric edge of the tubular fabric is controlled while controlling the fabric edge through a raw control member. In the method of sewing a tape-like material to the first, the edge of the tubular material from the notch portion to the rear position is folded back to the tubular material side, and the folded portion is located outside the presser foot side. Then, the cutout portion is bitten under the presser foot, and the tape-like cloth is sequentially sewn to the edge of the tubular cloth, and when the tape-like cloth at the leading end of the sewing reaches the rear position of the presser foot, the same tape is used. The tape-shaped material is turned over to the cylindrical material side, turned over, and the tape-shaped material is sewn again in sequence. When the cutout goes around once and reaches the front position of the presser foot again, the folded-back tape-shaped material is engaged. Lock the tape-like material with the stop piece and position the folded part outside the presser foot side. By wearing very efficiently it can perform sewing of a tape-like fabric against the tubular fabric having a notch V-shaped, in which automation is enabled.

The present invention is most suitable for sewing a tape-like material to a hem portion made of a tubular material such as shorts and briefs.

[Brief description of the drawings]

FIG. 1 is a front view of pants.

FIG. 2 is an enlarged front view of a hem portion of the pants.

FIG. 3 is a main perspective view of the device according to the invention.

FIG. 4 is a rear perspective view of the device according to the present invention.

FIG. 5 is a perspective view for explaining an operation at the time of starting sewing according to the present invention.

FIG. 6 is a perspective view for explaining operation showing the inverted and superposed state of the tape-like material according to the present invention.

FIG. 7 is a perspective view for explaining an operation at the time of pressing and bending the inverted and superposed tape-like material according to the present invention.

8 is an enlarged perspective view of a main part of FIG. 7;

FIG. 9 is a plan view for explaining the operation when the inverted and superposed tape-like material according to the present invention is locked.

FIG. 10 is a perspective view for explaining an operation when the inverted and superposed tape-like material according to the present invention is locked.

FIG. 11 is a perspective view for explaining an operation in a state where the tubular cloth sewn with the tape-like cloth according to the present invention is removed from the guide plate.

FIG. 12 is an explanatory perspective view for operation at the time of ending the sewing of the tape-shaped cloth according to the present invention.

FIG. 13 is a perspective view for explaining the operation for cutting the tape-shaped cloth at the end of the sewing of the tape-shaped cloth according to the present invention.

FIG. 14 is a perspective view for explaining an operation showing another embodiment at the time of reversing and superposing the tape-like material according to the present invention.

FIG. 15 is a perspective view for explaining operation showing another embodiment when the tape-like material is turned over and polymerized according to the present invention.

FIG. 16 is a plan view showing a state in which a tape-like material is sewn to the periphery of the hem of the pants according to the present invention.

[Description of sign]

 2 hem 3 tape-like material 16 locking piece 28 pressing rod

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Masayuki Domen 1 Ishishinmachi Ishiburo, Ayabe-shi, Kyoto Gunze K.K.

Claims (1)

(57) [Claims] 1. A tape-shaped material is sewn to the material edge of a cylindrical material while a V-shaped notch is provided in a part of a peripheral portion of the material and the material edge is controlled via a material edge control member. In the method of attaching, first, the edge of the tubular fabric from the site of the cutout portion to the rear position is folded back to the tubular fabric side, and the cutout portion is placed in a state where the folded portion is located outside the presser foot side. The tape-shaped fabric is sequentially sewn to the edge of the tubular fabric by biting under the presser foot, and when the notch makes a round and reaches the front position of the presser foot again, the folded-back tape-shaped fabric is removed. A method of sewing a tape-like material, wherein the tape-like material is sewn by locking via a locking piece, and the folded portion is positioned outside a side of the presser foot.