JP2000033195A - Tape folding device for cloth-edge tape lapping/seaming machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust and maintain the distances between seams and the outer edges of a cloth-edge tape continuously at a preset length. SOLUTION: A guide means 13 comprises a bracket 14, guide plates 16 and 17 for guiding respective outer edges 52d and 52e of a cloth-edged tape 52, and a guide plate 15 for guiding a bottom fold 52c of the cloth-edged tape 52 and an end 51a of thick cloth 51. The guide plates 15 to 17 are formed individually and are attached to the bracket 14 for positional readjustment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape folding device for a cloth wrapping tape sewing machine, and more particularly, to an outer edge of a thick cloth having high elasticity, such as a blanket having a ground structure as a net. The present invention relates to a tape folding device for a cloth edge tape winding and sewing machine used when winding and sewing a cloth edge tape around the tape.

[0002]

2. Description of the Related Art FIG. 6 is a perspective view schematically showing a conventional tape folding device for a cloth wrapping tape winding machine (hereinafter simply referred to as a tape folding device). FIGS. 7A and 7B are schematic views showing a conventional tape bending apparatus and a main part of a cloth edge tape winding machine into which the apparatus is incorporated. FIG. 7A is a side sectional view, and FIG. It is a B sectional view.
FIG. 8 is a perspective view schematically showing a state in which a cloth edge tape is folded into two and sewn on a thick cloth when a conventional tape bending apparatus is used.

A substantially hollow U-shaped cylindrical body 61 in side view includes an outer wall 61b, an inner wall 61c, a connection edge 61d, and the like. An insertion port 61e is formed at one end of the cylindrical body 61, and the other end is formed. Is formed with a notch portion 62a, and the shape of the cylindrical body 61 gradually changes from a flat shape to a U-shape as it goes from the insertion opening 61b side to the notch portion 62a side. This cylindrical body 61 is a bending means. The notch 62a is formed by connecting the other end of the cylindrical body 61 with an arrow D in the drawing.
The cutout 62a is formed by cutting out at an angle of about 45 ° with respect to the -E (front-back) direction axis.
A reversing plate 62c having a substantially U-shape in a front view extends from the inner wall rear end 62b in the D (front) direction. The reversing means 62 including these notches 62a, reversing plates 62c, etc.
Is configured.

The front end of the reversing plate 62c is integrally formed with a guide means 63 which is substantially U-shaped in a front view.
The guide means 63 includes two flat main guide portions 63b, a bent portion 63a having a substantially semicircular shape in front view connecting the main guide portions 63b, and an end portion of each main guide portion 63b facing the front end portion of the cutout portion 62a. And a rectangular plate-shaped sub-guide portion 63d extending from the main guide portion 63b via a regulating portion 63c having a substantially semicircular shape as viewed from the front. One end of a mounting means 69 having a substantially L-shape in front view is mounted on the outside of the bent portion 63a of the guide means 63,
From the other end side of the mounting means 69, the groove 69a is KM
It is formed in the (left-right) direction. The tape bending device 60 includes the cylindrical body 61, the reversing means 62, the guide means 63, the mounting means 69 and the like.

As shown in FIG. 7, an opening 71a is formed at a predetermined position of the cloth edge tape winding machine main body 71, and a needle plate 72 is mounted in the opening 71a.
In 2, a tooth portion 73a of the main feeding means 73, a tooth portion 74a of the auxiliary feeding means 74 and a cloth feeding claw portion 74b are slidably disposed. When the driving means (not shown) is driven, the teeth 73 a and the teeth 7 are
4a and the feed claws 74b are driven in the directions of arrows F and G in the figure. Further, a plurality of needles 75 are disposed above the needle plate 72, and the needles 75 are linked with the operation of the feeding means 73, 74 by arrows HJ (up and down) in the figure.
It is driven in the direction. A tape folding device 60 is attached to a predetermined portion of the cloth edge tape winding machine main body 71 via an attaching means 69. These tape folding device 60, cloth edge tape winding machine main body 71,
The cloth edge tape winding machine 70 includes the feeding means 73 and 74, the needle 75, and the like.

[0006] The cloth edge tape winding machine 7 constructed as described above.
When 0 is used, the distance L between the needle 75 and the bent portion 63a
_While adjusting (FIG. 7 (b)), the tape folding device 60 is attached and fixed to the cloth edge tape winding machine main body 71 via the bolt 69c. Next, the cloth edge tape 52 is inserted into the insertion opening 61e while the cloth edge tape surface portion 52a is along the inner wall 61c.
, And once pulled out from the notch 62a, the cloth edge tape 52 is bent into two substantially at the center with the surface 52a facing inward. Next, the reversing means 62
In the above, the fabric edge tape 52 is bent at an angle of about 90 °.
After turning over, it is passed through the guide means 63. Then, the cloth edge tape 52 is guided above the main feeding means 73 while the tip positions of the outer edge portions 52d and 52e are regulated by the regulating portion 63c.

On the other hand, the thick cloth 51 is obtained by, for example, stacking two blankets with the raised surface facing outward, and
a of the thick cloth 51 from the rear of the reversing means 62 while keeping the a close contact with the bent bottom 52 c of the cloth edge tape 52.
When inserted between the guides 63, the thick cloth 51 is automatically sent out by one stitch in the D (front) direction by the drive of the feed claw portion 74b and the tooth portion 74a (G direction), and in the vicinity of the front end of the guide means 63, A cloth edge tape 52 is wound around an end 51 a of the thick cloth 51. When the needle 75 is reciprocated in the JH direction, the thick cloth 51 and the cloth edge tape 52 are sewn with, for example, the flat seam 55, and then the tooth portion 73a is driven (the F direction).
As a result, the pieces are sequentially sent out in the D direction one by one.

When the conventional tape folding device 60 is used, the outer edges 52d and 52e of the cloth edge tape 52 protrude outside the knitted flat seam 55. There is a problem that the fibers constituting the fiber 52 may be unraveled at the outer edges 52d and 52e, and the appearance is poor. In order to cope with this problem, a tape folding device that bends the outer edge of the cloth edge tape inward has been developed.

Although not shown, in this type of conventional tape bending apparatus, the vicinity of one connection edge 61d (both in FIGS. 6 and 7) of the cylindrical body 61 is folded outward. Other configurations are substantially the same as those shown in FIGS.
Here, a detailed description of the configuration is omitted.
In the case of this device, the cloth edge tape 53 is folded inward at the folded bottom 53f as shown in FIG.
Is sewn while being sandwiched between the cloth edge tape 53 and the surface of the thick cloth 51.

Although not shown, another conventional tape bending apparatus has a state in which the vicinity of both connecting edges 61d of the cylindrical body 61 is folded outward. Other configurations are shown in FIGS.
Is substantially the same as that shown in FIG. 1, and a detailed description of the configuration is omitted here. In the case of this device, as shown in FIG.
f, 54g, and are folded inward at the outer edges 54d, 54e.
Is sewn while being sandwiched between the cloth edge tape 54 and the thick cloth 51.

[0011]

The cloth edge tapes 52 to 54 sewn using the tape folding device 60 and the like described above.
And the thick cloth 51 are variously different in material, knitting method, width and thickness dimension, and are different in expansion direction and expansion ratio. Further, in the above-described tape bending device 60 and the like, due to the structure of the feeding means 73 and 74, the cloth edge tapes 52 to 54 and the thick cloth 51 are uniformly and guided through the teeth 73a and 74a and the feeding claw 74b. It is difficult to feed in parallel along 63. As a result, the flat seam 55 and the outer edge 52
d, 52e, 53e or folded bottom 53F, 54
It is difficult to always maintain the distance to f and 54g at a predetermined length L.

Further, there is a problem that the bent bottom portion 52c is displaced from the center line (not shown) of the cloth edge tapes 52 to 54, and the flat seam 55 may be displaced from the cloth edge tape 52 toward the thick cloth 51 (see FIG. 1). (FIG. 11). Even if the positional relationship between the cloth edge tape winding machine main body 71 and the tape folding device 60 is corrected via the attachment means 69, the distance between the bent portion 63a and the regulating portion 63c does not change, and the flat seam 55 and the outer edge portion 52d are not changed. , 52e, 53e or the folded bottom portions 53F, 54f, 54g.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and can always adjust and maintain a distance between a seam and an outer edge portion or a folded bottom portion of a cloth edge tape to a predetermined length. It is an object of the present invention to provide a tape folding device capable of winding and sewing a cloth edge tape around a thick cloth while accurately maintaining the position of the tape.

[0014]

In order to achieve the above object, a tape folding device according to the present invention comprises a folding device for folding a cloth edge tape inserted into a hollow U-shaped cylindrical body in a side view into two. Means, a reversing means for reversing the inside and outside of the folded-up cloth edge tape, both outer edges and a bent bottom position of the inverted cloth edge tape, and an end of a thick cloth on which the cloth edge tape is wound. In a tape folding device provided with guide means for guiding in the direction of the needle while regulating the position of the part, and means for attaching to the main body side, the guide means guides the bracket and the first and second outer edges, respectively. A second guide plate, and a third guide plate for guiding a bent bottom portion of the cloth edge tape and an end portion of the thick cloth, wherein the first to third guide plates are separately provided. Formed Rutotomoni, at least one of the first to third guide plate is characterized in that it mounted adjustably mounted on the bracket (1).

According to the above tape folding device (1), the guide means guides the bracket, the first and second guide plates for respectively guiding the outer edges, the bent bottom portion of the cloth edge tape and the thickness. A third guide plate for guiding an end of the cloth, wherein the first to third guide plates are separately formed, and the first to third guide plates are formed separately.
Since at least one of the third guide plate is attached to the bracket so that the attachment position can be adjusted, by finely adjusting the attachment position of the third guide plate to the bracket, the end of the thick cloth and The distance between the bent bottom portion of the cloth edge tape and the needle can be reliably corrected and maintained, and by finely adjusting the mounting positions of the first and second guide plates with respect to the bracket, the cloth edge tape can be adjusted. In this case, the distance between the bent bottom portion and the outer edges can be reliably corrected and maintained, and the distance between the outer edges and the needle can always be ensured. As a result, the cloth edge tape can be wound and sewn on the thick cloth while accurately maintaining the position of the cloth edge tape with respect to the thick cloth, and the appearance can be improved. .

Further, the tape bending device according to the present invention comprises:
Folding means for folding the cloth edge tape inserted into the hollow U-shaped cylindrical body in a side view inward and folding one outer edge of the folded cloth edge tape outward, and the folding means. Reversing means for reversing the inside and outside of the cloth edge tape, the other outer edge of the inverted cloth edge tape, the folded bottom portion, and the bent bottom position and the end of the thick cloth around which the cloth edge tape is wound. In a tape folding device provided with a guide unit for guiding the needle portion in the direction of the needle while regulating the position, and a guide unit for attaching the unit to the main body, the guide unit includes a bracket and a first guide plate for guiding the folded bottom. A second guide plate that guides the other outer edge of the cloth edge tape, and a third guide plate that guides a bent bottom portion of the cloth edge tape and an end of the thick cloth, The first to third guide plates are separately formed, and at least one of the first to third guide plates is attached to the bracket so as to be adjustable in attachment position (2). .

According to the above tape bending apparatus (2), the guide means guides the bracket, the first guide plate for guiding the folded bottom, and the second guide for guiding the other outer edge of the cloth edge tape. A third guide plate for guiding a bent bottom portion of the cloth edge tape and an end portion of the thick cloth;
And the first to third guide plates are formed separately from each other, and at least one of the first to third guide plates is attached to the bracket so as to be adjustable in position. Because it is attached, the third
By finely adjusting the mounting position of the guide plate with respect to the bracket, the distance between the end of the thick cloth and the bent bottom of the cloth edge tape and the needle can be surely corrected and maintained. By finely adjusting the mounting position of the second guide plate with respect to the bracket,
The distance between the folded bottom and the folded bottom or the other outer edge of the cloth edge tape can be reliably corrected and maintained, and therefore the distance between the folded bottom and the other outer edge and the needle is always secured. can do. As a result, the cloth edge tape can be wound and sewn on the thick cloth while accurately maintaining the position of the cloth edge tape with respect to the thick cloth, and the appearance can be improved. .

Further, the tape bending device according to the present invention comprises:
Folding means for folding the cloth edge tape inserted into the hollow U-shaped cylindrical body in a side view inward and folding both outer edges of the folded cloth edge tape outward; Reversing means for reversing the inside and outside of the folded fabric edge tape, regulating the folded bottom portion and the folded bottom position of the inverted fabric edge tape, and the end position of the thick cloth on which the fabric edge tape is wound. In a tape bending device provided with guide means for guiding in the direction of the needle portion while attaching, and a means for attaching to the main body side, the guide means includes a bracket,
First and second guide plates for guiding the folded back portions, and a third guide plate for guiding a bent bottom portion of the cloth edge tape and an end portion of the thick cloth, the first to the first, The third guide plate is formed separately, and at least one of the first to third guide plates is attached to the bracket so as to be adjustable in attachment position (3).

According to the above tape folding device (3), the guide means guides the bracket, the first and second guide plates for guiding the both folded bottom portions, the folded bottom portion of the cloth edge tape and the thick cloth. And a third guide plate that guides an end of the first to third guide plates. The first to third guide plates are separately formed, and the first to third guide plates are formed separately.
Since at least one of the third guide plates is attached to the bracket so that the attachment position can be adjusted, by finely adjusting the attachment position of the third guide plate to the bracket, the end portion of the thick cloth and the The distance between the bent bottom of the cloth edge tape and the needle can be reliably corrected and maintained, and by finely adjusting the mounting positions of the first and second guide plates with respect to the brackets, The distance between the folded bottom and the two folded bottoms can be reliably corrected and maintained, and therefore the distance between the two folded bottoms and the needle can always be ensured. As a result, the cloth edge tape can be wound and sewn on the thick cloth while accurately maintaining the position of the cloth edge tape with respect to the thick cloth, and the appearance can be improved. .

Further, the tape bending device according to the present invention comprises:
In any one of the tape bending apparatuses (1) to (3) described above, two of the first to third guide plates are integrated (4).

According to the tape bending device (4), since two of the first to third guide plates are integrated, it is troublesome to adjust each of the first to third guide plates. Can be reduced, and the distance between the outer edge or the folded bottom of the cloth edge tape and the needle can be quickly corrected.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tape folding device according to the present invention will be described below with reference to the drawings. In addition,
Components having the same functions as in the conventional example are denoted by the same reference numerals. FIG. 1 is a schematic diagram showing a tape folding device according to an embodiment (1), (a) is a plan view,
(B) is a side view, and (c) is a front view. FIG. 2 is a perspective view schematically showing a tape bending device according to the embodiment (1) and a main part of a cloth edge tape winding machine into which the tape bending device is incorporated. 6 and 7, a substantially hollow U-shaped cylindrical body 61 in a side view includes an outer wall 61b,
It is configured to include an inner wall 61c, a connection edge 61d, and the like. An insertion opening 61e is formed at one end of the cylindrical body 61, and a cutout portion 62a is formed at the other end. The shape of the cylindrical body 61 changes from the insertion opening 61b side to the cutout portion 62a side. It gradually changes from a flat shape to a U-shape. This cylindrical body 61 is a bending means. The notch 62a is formed by connecting the other end of the cylindrical body 61 with a line D-E in the figure.
It is formed by notching at an angle of approximately 45 ° with respect to the direction axis, and the rear end 62b of the inner wall of the notch 62a.
Reversing plate 12c in which the front view substantially lateral U-shape from are extended in the direction D, the projection 12d having a predetermined length L ₁ in the front end portion of the reversing plate 12c is formed. The reversing means 12 includes the notch 62a, the reversing plate 12c, the protruding portion 12d, and the like.

On the other hand, one end of a substantially rectangular parallelepiped bracket 14 is attached to a predetermined position on the back surface of the cylindrical body 61.
At the other end of the bracket 14, a substantially hook-shaped mounting member 15a is provided so as to be slidable in the KM direction. A third guide plate (hereinafter, simply referred to as a guide plate) 15 having a substantially semicircular shape in a front view is attached to the mounting bracket 15a so that the length direction thereof is along the DE axis. Reference numeral 15 is slidable with respect to first and second guide plates (hereinafter simply referred to as guide plates) 16 and 17. And positioning the mounting bracket 15a relative to the bracket 14 by tightening the predetermined portion of the long hole 15b by a bolt 18a, the distance between the guide plate 15 and the needle 75 L ₀
(FIG. 1C) is finely adjusted.

On the other hand, guide plates 16 and 17 are provided on the upper and lower surfaces of the bracket 14 so as to be slidable in the KM direction, respectively.
e, the guide plates 16 and 17 are positioned with respect to the bracket 14, and predetermined portions of the long holes 16a and 17e are tightened with bolts 18a, so that the regulating portions 16 are formed.
The distance L between b and 17b and the needle 75 is finely adjusted. These guide plates 16 and 17 are substantially flat plate-shaped main guide portions 16a and 17a, and restricting portions 16b each extending from these ends in a semicircular shape in a front view.
17b, sub-guide portions 16c, 17c extending in parallel with the main guide portions 16a, 17a from ends of the regulating portions 16b, 17b, and protrusions formed at rear ends of the sub-guide portions 16c, 17c, respectively. It is configured to include the parts 16d and 17d.

The protruding portions 16d and 17d and the protruding portion 12d of the reversing plate 12c prevent the cloth edge tape 52 from protruding outside the joint between the reversing means 12 and the guide means 13. The guide means 13 includes the bracket 14, the guide plates 15 to 17, and the like. 6 and 7, one end of the mounting means 69 is mounted at a predetermined position of the bracket 14, and a groove 69a is formed at the other end of the mounting means 69.
Are formed in the KM direction. These reversing means 12,
The tape folding device 10 includes the guide means 13, the cylindrical body (bending means) 61, the mounting means 69 and the like.

As shown in FIG. 7, an opening 71a is formed in a predetermined portion of the cloth edge tape winding machine main body 71, and a needle plate 72 is mounted in the opening 71a.
In 2, a tooth portion 73a of the main feeding means 73, a tooth portion 74a of the auxiliary feeding means 74 and a cloth feeding claw portion 74b are slidably disposed. When the driving means (not shown) is driven, the teeth 73 a and the teeth 7 are
4a and the feed claws 74b are driven in the directions of arrows F and G in the figure.

A plurality of needles 75 are provided above the needle plate 72. The needles 75 are driven in the directions of arrows HJ in the figure in conjunction with the operation of the feeding means 73 and 74. Has become. The tape folding device 10 is attached to a predetermined portion of the cloth edge tape winding machine main body 71 via an attaching means 69. The cloth edge tape winding machine includes the tape folding device 10, the cloth edge tape winding machine main body 71, the feeding means 73 and 74, the needle 75 and the like.

In the case of using the cloth edge tape winding machine configured as described above, as shown in FIG.
Adjust the mounting position with respect to the cloth edge tape MakiNui machine body 71 of 9, the distance between the needle 75 and the reversing plate bottom 12e is set to approximately L _0, holding the tape folding device 10 to the fabric edge tape MakiNui machine body 71 I do. Then be adapted to the width of the hem tape 52 finely adjusting the mounting position with respect to the bracket 14 of the guide plate 15, the distance between the needle 75 and the guide plate 15 and sets accurately the L _0, the guide plates 16 and 17 Of the bracket 75 with respect to the bracket 14, the needle 75 and the regulating portion 1 are adjusted.
The distances to 6b and 17b are set to L respectively.

Next, as in the case shown in FIGS. 6 to 8, the cloth edge tape 52 is inserted into the insertion opening 61e while the cloth edge tape surface portion 52a is along the inner wall 61c, and is once pulled out from the cutout portion 62a. Then, the cloth edge tape 52 is bent into two substantially at the center with the surface portion 52a facing inward. Next, in the reversing means 12, the fabric edge tape 52 is
After being bent / reversed at an angle of 0 °, the guide means 13
Pass through. Then, while the positions of the outer edges 52d and 52e are regulated by the regulating portions 16b and 17b, the cloth edge tape 5 is
2 is guided above the main feeding means 73. At the same time, the thick cloth 51 is inserted between the guide portions 16 and 17 from the rear of the reversing means 12 while the thick cloth end 51a is in close contact with the bent bottom 52c of the cloth edge tape 52.

Then, the thick cloth 51 is automatically sent out by one stitch in the D direction by the driving of the feed claw portion 74b and the tooth portion 74a (G direction), and the end of the thick cloth 51 is near the front end of the guide means 13. A cloth edge tape 52 is wound around the portion 51a. Then, when the needle 75 is driven to reciprocate in the JH direction,
As shown in FIG. 8, the seam 55 and the outer edges 52d, 52e
While maintaining the distance L between the thick cloth 51 and the cloth edge tape 5.
2 are sewn with flat seams 55. When the distance L starts to change during the sewing process, the guide plates 13 to
By finely adjusting the position of No. 15, the distance is corrected to the length L.

As is clear from the above description, in the tape bending apparatus 10 according to the embodiment (1), the guide means 13 includes the bracket 14, the guide plates 16 and 17 for guiding the outer edges 52d and 52e, respectively, and Cloth tape 5
2 and a guide plate 15 for guiding an end portion 51a of the thick cloth 51.
5 to 17 are separately formed, and the guide plates 15 to 17 are attached to the bracket 14 so as to be adjustable in mounting position.
By finely adjusting the mounting position with respect to the end portion 51a of the thick cloth 51 and the bent bottom 5
The distance L ₀ between the needle 2 c and the needle 75 can be reliably corrected and maintained, and by finely adjusting the mounting positions of the guide plates 16 and 17 with respect to the bracket 14, the bent bottom portion 52 c of the cloth edge tape 52 and both outer edges can be obtained. Part 52d, 5
The distance (L ₀ + L) to the needle 2e can be reliably corrected and maintained, and the distance L between the outer edges 52d, 52e and the needle 75 can always be ensured. As a result, the cloth edge tape 52 can be wound and sewn on the thick cloth 51 while accurately maintaining the position of the cloth edge tape 52 with respect to the thick cloth 51, and the appearance can be improved. .

FIG. 3 is a front view schematically showing a tape bending apparatus according to the embodiment (2), and in FIG. 3, reference numeral 14 denotes a bracket similar to that shown in FIG. Guide plates 26 and 27 are respectively disposed on the upper and lower surfaces of the bracket 14 so as to be slidable in the K-M direction. Are mounted integrally, while the other circumferential end of the guide plate 25 is slidable on the guide plate 27. When the guide plate 26 moves, the guide plate 25 also moves in the KM direction at the same time.

In substantially the same manner as shown in FIG. 1, these guide plates 26, 27 are substantially flat main guide portions 26a, 27.
a, restricting portions 26b and 27b extending from one end thereof in a semicircular shape in a front view, and restricting portions 26b and 27, respectively.
The sub-guides 26c and 27c extend in parallel with the main guides 26a and 27a from the end of the sub-guide b. Elongated holes (not shown) are formed on the other end sides of the guide plates 26 and 27, and the guide plates 26 and 27 are positioned with respect to the bracket 14, and predetermined portions of the elongated holes are tightened with bolts 18a. The guide plate 2
The distance L between the regulating portion 26b and the needle 75 is finely adjusted while maintaining the distance (L + L ₀ ) between the regulating portion 26b and the regulating portion 26b. These bracket 14 and guide plate 2
The guide means 23 includes 5 to 27 and the like.
Other configurations are the same as those shown in FIGS. 1 and 2, and a detailed description of the configuration will be omitted here. The tape bending device 20 includes the reversing means 12, the guide means 23, the cylindrical body (bending means) 61, the attaching means 69, and the like.

As is clear from the above description, in the tape folding device 20 according to the embodiment (2), the guide plate 2
Since two of the guide plates 25 to 26 (guide plates 25 and 26) are integrated, the trouble of adjusting the guide plates 25 to 27 can be reduced, and the outer edge portion 52d of the cloth edge tape 52 and the needle can be reduced. The distance L with respect to 75 can be quickly corrected.

In the tape bending apparatus 20 according to the embodiment (2), the case where the guide plates 25 and 26 are integrated has been described. However, in another embodiment, the guide plates 25 and 27 or The guide plates 26 and 27 may be integrated.

FIG. 4 is a perspective view schematically showing a tape bending device according to the embodiment (3), in which 32 indicates a cylindrical body. The substantially hollow U-shaped cylindrical body 32 in side view includes an outer wall 32a, an inner wall 32b, a connection edge 32c, an end 32d, and the like, and a folded portion 33 is folded outward from the end 32d. . An insertion port 34 is formed at one end of the cylindrical body 32 and the folded portion 33, and a cutout 35a is formed at the other end. The bending means 31 includes the cylindrical body 32, the folded portion 33, the insertion port 34, and the like. Further, the reversing means 35 includes the notch 35a, the reversing plate 12c, the protruding portion 12d (FIGS. 1 and 2), and the like. Other configurations are the same as those shown in FIGS. 1 and 2, and a detailed description of the configuration will be omitted here. These guide means 1
3, folding means 31, reversing means 35, mounting means 6
The tape folding device 30 includes the components 9 and the like.

In the case of using the tape folding device 30 configured as described above, as shown in FIG. 9, the cloth edge tape 53 is inserted into the insertion opening 34 while the cloth edge tape surface portion 53a is along the inner wall 32b. Once pulled out from the cut-out portion 35a, the cloth edge tape 5 with the surface portion 53a facing inward is set.
3 is folded into two, and the outer edge 53d is folded outward. Next, the cloth edge tape 53 is bent / reversed at an angle of about 90 ° by the reversing means 35 and then passed through the guide means 13. Then, the cloth edge tape 53 is guided above the main feeding means 73 (FIG. 2) while the positions of the folded bottom 53f and the outer edge 53e are regulated by the regulating portions 16b and 17b.

As is clear from the above description, in the tape bending device 30 according to the embodiment (3), the guide plate 1
By fine-adjusting the mounting position with respect to 5 of the bracket, it is possible to reliably fix and maintain the distance L ₀ between the bottom portion 53c and the needle bent end 51a and a cloth edge tape 53 with a thickness fabric 51, also the guide plates By finely adjusting the mounting positions of the brackets 16 and 17 with respect to the bracket, the distance (L ₀ + L) between the bent bottom 53c of the cloth edge tape 53 and the folded bottom 53f or the outer edge 53e can be reliably corrected and maintained. Therefore, the distance L between the folded bottom 53f and the outer edge 53e and the needle 75 can always be ensured.

FIG. 5 is a perspective view schematically showing a tape bending device according to the embodiment (4), in which 42 indicates a cylindrical body. The substantially hollow U-shaped cylindrical body 42 in side view includes an outer wall 42a, an inner wall 42b, two ends 42c, and the like, and a folded portion 43 is folded outward from each end 42c. . An insertion opening 44 is formed at one end of the cylindrical body 42 and the folded portion 43, and a cutout 45a is formed at the other end. The bending means 41 includes the cylindrical body 42, the folded portion 43, the insertion port 44, and the like. The reversing means 45 includes the notch 45a, the reversing plate 12c, the protruding portion 12d (FIGS. 1 and 2), and the like. Other configurations are the same as those shown in FIGS. 1 and 2, and a detailed description of the configuration will be omitted here. These guide means 1
3, folding means 41, reversing means 45, mounting means 6
The tape folding device 40 includes the components 9 and the like.

In the case of using the tape folding device 40 constructed as described above, as shown in FIG. 10, the cloth edge tape 54 is moved while the cloth edge tape surface portion 54a is along the inner wall 42b.
Is inserted into the insertion slot 44 and once pulled out from the notch portion 45a, the cloth edge tape 54 is folded in two with the surface portion 54a facing inward, and the two outer edge portions 54 are bent.
d is folded outward. Next, the cloth edge tape 54 is bent / reversed at an angle of about 90 ° by the reversing means 45 and then passed through the guide means 13. Then the folded bottom 54
While the positions of f and 54g are regulated by the regulating portions 16b and 17b, the cloth edge tape 54 is guided above the main feeding means 73 (FIG. 2).

As is clear from the above description, in the tape bending device 40 according to the embodiment (4), the guide plate 1
By fine-adjusting the mounting position with respect to 5 of the bracket, it is possible to reliably fix and maintain the distance L ₀ between the bottom portion 54c and the needle bent end 51a and a cloth edge tape 54 with a thickness fabric 51, also the guide plates By finely adjusting the mounting positions of the brackets 16 and 17 with respect to the bracket, the distance (L ₀ + L) between the bent bottom portion 54c and the folded back portions 54f and 54g in the cloth edge tape 54 can be reliably corrected and maintained, respectively. Therefore, the distance L between the folded bottoms 54f and 54g and the needle can always be ensured.

The above-mentioned tape bending apparatus 10
In 40, the case where both are incorporated in the cloth edge tape winding machine 70 having the feeding means 73 and 74 has been described, but the cloth edge tape winding machine is not limited to this.

Further, the above-described tape bending device 10,
In each of the embodiments 30 and 40, the case where the guide plates 15 to 17 can be adjusted has been described. However, in another embodiment, one of the guide plates 15 to 17 is fixed to the bracket 14. Alternatively, the guide plates 15 and 16, the guide plates 15 and 17, or the guide plates 16 and 17 may be fixed to the bracket 14.

In addition, the above-described tape bending device 10,
30 and 40, the case where the guide plates 15 to 17 are formed separately is described, but the guide plates 15 and 16 may be integrated with the guide plates 15 and 16 in substantially the same manner as shown in FIG. Further, the guide plates 15, 17 or the guide plates 16, 17 may be integrated.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an embodiment (1) of a tape bending apparatus according to the present invention, wherein (a) is a plan view and (b).
Is a side view, and (c) is a front view.

FIG. 2 is a perspective view schematically showing a tape bending device according to Embodiment (1) and a main part of a cloth edge tape winding machine into which the tape bending device is incorporated.

FIG. 3 is a front view schematically showing a tape bending device according to a second embodiment.

FIG. 4 is a perspective view schematically showing a tape bending device according to a third embodiment.

FIG. 5 is a perspective view schematically showing a tape bending device according to an embodiment (4).

FIG. 6 is a perspective view schematically showing a conventional tape bending device.

FIGS. 7A and 7B are schematic views showing a conventional tape bending device and a main part of a cloth edge tape winding machine into which the tape folding device is incorporated, wherein FIG. 7A is a side sectional view, and FIG. −
It is a B sectional view.

FIG. 8 is a perspective view schematically showing a state in which a cloth edge tape is folded into two and sewn to a thick cloth when the tape folding device according to the related art and the embodiment (1) is used. It is.

FIG. 9 shows a state in which a cloth edge tape is folded into two and one outer edge is folded back and sewn to a thick cloth when the tape folding device according to the conventional and the embodiment (3) is used. It is the perspective view shown typically.

FIG. 10 shows a state in which a cloth edge tape is folded into two and both outer edges are folded back and sewn to a thick cloth when the tape folding device according to the conventional and the embodiment (4) is used. It is the perspective view shown typically.

FIG. 11 is a perspective view schematically showing a state in which the bent bottom is displaced from the center line of the cloth edge tape and the seam is off the thick cloth side from the cloth edge tape when a conventional tape bending apparatus is used. is there.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Tape bending apparatus 12 Inversion means 13 Guide means 14 Bracket 15 Third guide plate 15b Long hole 16 First guide plate 16e Long hole 17 Second guide plate 17e Long hole 51 Thick cloth 51a Thick cloth end part 52 Cloth edge Tape 52a Surface part 52b Back part 52c Bend bottom part 52d, 52e Outer edge part 61 Cylindrical body (bending means) 69 Attaching means 71 Cloth edge tape winding machine main body 75 Needle

Claims (4)

[Claims] 1. A folding means for folding a cloth edge tape inserted into a hollow U-shaped cylindrical body in a side view into two, an inversion means for inverting the inside and outside of the folded cloth edge tape, and the inversion. Guide means for guiding in the direction of the needle while regulating the positions of both outer edges and the bent bottom portion of the set cloth edge tape and the end position of the thick cloth on which the cloth edge tape is wound, and mounting means to the main body side A tape bending device for a cloth edge tape winding machine, comprising: a bracket, first and second guide plates for respectively guiding the outer edges, a bent bottom portion of the cloth edge tape, and And a third guide plate for guiding an end of the thick cloth, wherein the first to third guide plates are formed separately, and at least one of the first to third guide plates is provided. One is the bracket A tape folding device for a cloth edge tape winding and sewing machine, wherein the tape folding device is mounted so as to be capable of adjusting a mounting position. 2. A folding means for folding the cloth edge tape inserted into the hollow U-shaped cylindrical body in a side view into two inwards, and for folding one outer edge of the folded half-width tape outward. Reversing means for reversing the inside and outside of the folded fabric edge tape; the other outer edge of the inverted fabric edge tape, the folded bottom portion, and the folded bottom position and the fabric edge tape are sewn; In a tape folding apparatus for a cloth edge tape winding machine provided with guide means for guiding the needle part direction while regulating the end position of the thick cloth, and means for attaching to the main body side, the guide means includes a bracket, A first guide plate that guides the folded bottom portion, a second guide plate that guides the other outer edge of the cloth edge tape, and a second guide plate that guides the bent bottom portion of the cloth edge tape and the end of the thick cloth. 3 mo And the first to third guide plates are separately formed, and at least one of the first to third guide plates is attached to the bracket so as to be adjustable in attachment position. A tape folding device for a cloth edge tape winding machine, wherein 3. A folding means for folding a cloth edge tape inserted into a hollow U-shaped cylindrical body in a side view into two inwards, and folding both outer edges of the folded fabric edge tape outward. Reversing means for reversing the inside and outside of the folded fabric edge tape; the folded bottom portion and the folded bottom position of the inverted fabric edge tape; and the end of the thick fabric on which the fabric edge tape is wound. In a tape folding device for a cloth edge tape winding machine provided with guide means for guiding in the direction of the needle while regulating the position of the part, and a means for attaching to the main body side, the guide means comprises a bracket, and both folded bottom portions. And a third guide plate for guiding a bent bottom of the cloth edge tape and an end of the thick cloth, and the first to third guides. Each board is separate And the first to the first
At least one of the third guide plates is attached to the bracket so that the attachment position can be adjusted, and the tape folding device for a cloth edge tape winding machine is characterized in that: 4. The tape according to claim 1, wherein two of the first to third guide plates are integrated. Bending device.