CN108652144B

CN108652144B - Zipper strip manufacturing device and method, and method for attaching reinforcing film to zipper strip

Info

Publication number: CN108652144B
Application number: CN201710196141.9A
Authority: CN
Inventors: 三轮泰史; 中野皓介
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2017-03-29
Filing date: 2017-03-29
Publication date: 2020-11-10
Anticipated expiration: 2037-03-29
Also published as: CN108652144A; TWI664933B; TW201836508A

Abstract

The invention provides a manufacturing method of a zipper strip with a reinforced film, which solves the problem that the length of the reinforced film surrounding a removing part is changed due to deviation of a cutting position. The manufacturing method comprises the following steps: forming an opening in the fastener stringer, the opening being defined at least in part by the removed portion of each fastener stringer; positioning at least a pair of reinforcing films in the opening, thereby disposing a first portion of the reinforcing films adjacent to the removed portion and disposing a second portion other than the first portion of the reinforcing films between the fastener stringers; a step of pressing the first portion of the reinforcing film against the removal portion; and a step of pressing the second portion of the reinforcing film against the first tape surface of the fastener tape on which the fastener elements are provided, in a state where the fastener chain is pulled laterally so that the bent side edge portions are flattened.

Description

Zipper strip manufacturing device and method, and method for attaching reinforcing film to zipper strip

Technical Field

The present invention relates to a manufacturing apparatus and a manufacturing method for a fastener stringer with a reinforcing film, and a method for attaching a reinforcing film to a fastener stringer.

Background

Fig. 10 to 13 of patent document 1 show an example of attaching a reinforcing tape to a fastener stringer (fastener stringer). In the case shown in fig. 10 and 11, a reinforcing tape 10 placed on the left and right fastener tapes (fastener tape)2 is attached to the fastener tape 2. Then, the reinforcing tape 10 is cut at the lower end of its U-shape. Then, the removing portion 6 where the fastener elements provided at the folded side edge portion of the fastener tape are removed is surrounded by the reinforcing tape 10, and the reinforcing tape 10 is attached to the removing portion 6.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 3733332.

Disclosure of Invention

When the reinforcing film is cut as in patent document 1, the length of the reinforcing film surrounding the removal portion may vary due to variations in the cutting position.

A method for manufacturing a fastener stringer with a reinforcing film according to an aspect of the present invention includes:

forming an opening defined at least partially by the removed portion of each fastener stringer in a fastener stringer formed by coupling a pair of fastener stringers having fastener elements provided at bent side edge portions formed by folding back one side edge portion of a fastener tape, and providing each fastener stringer with a removed portion from which the fastener elements are removed;

positioning at least a pair of reinforcing films in the opening, thereby disposing a first portion of the reinforcing films adjacent to the removed portion and disposing a second portion of the reinforcing films other than the first portion between the fastener stringers;

a step of pressing the first portion of the reinforcing film against the removal portion; and

and a step of pressing the second portion of the reinforcing film against a first tape surface of the fastener tape on which the fastener elements are provided, in a state where the fastener stringer is laterally pulled to flatten the bent side edge portion.

In some embodiments, the first portion of the reinforcing film is pressed against the removal portion in a state where the reinforcing film is bent on the first portion side by a bending tool.

In some embodiments, the step of bringing the first portion of the reinforcing film into pressure contact with the removing portion includes the steps of: at least a part of the first portion is brought into pressure contact with the removing portion by one or more pressing portions inserted into one or more holes provided in the bending tool.

In some embodiments, the reinforcing film is inserted into the opening in a state where the reinforcing film is bent at the first portion side by the bending tool.

In some embodiments, the bending tool has a partition wall portion inserted between the at least one pair of reinforcing films disposed at a spaced interval.

In some embodiments, the step of forming an opening in the fastener stringer defined at least in part by the removed portion of each fastener stringer includes: the pair of rod portions are inserted between the removing portions so that the distance between the pair of rod portions increases in the chain width direction of the fastener stringer.

In some embodiments, the method further comprises the following steps: the fastener stringer is conveyed between the first piece and the second piece in a state where the coupling element included in the fastener stringer and the removing portion are exposed on the main surface of the first conveying table from a gap between the first piece and the second piece included in the first conveying table.

In some embodiments, the first portion of the reinforcing film is pressed against the removing portion exposed on the main surface of the first conveying table.

In some embodiments, the folded side edge portion is flattened by laterally pulling each portion of the fastener stringer in the opened state of the fastener stringer opened by the first slider and closed by the second slider.

In some embodiments, the method further includes, as a step of conveying the fastener stringer on a second conveying table provided with an intermediate guide between a third table piece and a fourth table piece: the fastener stringer is conveyed in a state where the elements of the one fastener stringer disposed on the third stage are disposed between the intermediate guide and the third stage and the elements of the other fastener stringer disposed on the fourth stage are disposed between the intermediate guide and the fourth stage.

In some embodiments, the second portion of the reinforcing film is pressure-bonded to the first tape surface on the main surface of each of the third sheet and the fourth sheet.

In some embodiments, the method further comprises the following steps: and pushing the removing part between the middle guide piece and the third table piece and/or the removing part between the middle guide piece and the fourth table piece by a pushing tool.

In some embodiments, the openings extend between adjacent ones of the removed portions and between adjacent ones of the elements that are not joined.

According to one aspect of the present invention, an apparatus for manufacturing a fastener stringer with a reinforcing film includes:

an opening forming portion that forms an opening defined at least partially by the removed portion of each fastener stringer in a fastener stringer formed by coupling a pair of fastener stringers having fastener elements provided at bent side edge portions formed by folding back one side edge portion of a fastener tape, and that is provided with a removed portion from which the fastener elements are removed in each fastener stringer;

a grip portion capable of gripping at least a pair of reinforcing films;

a first driving unit that moves the holding unit so as to dispose a first portion of the reinforcing film adjacent to the removal unit and dispose a second portion of the reinforcing film other than the first portion between the fastener stringers;

a first pressure-bonding section that pressure-bonds a first portion of the reinforcing film to the removal section;

a lateral pulling part which pulls the zipper strips to two sides of the width direction of the chain so as to flatten the bending side edge part; and

and a second pressure-bonding section that pressure-bonds the second portion of the reinforcing film to a first tape surface of the fastener tape on which the fastener element is provided, in a state where the fastener stringer is laterally pulled by the lateral pulling section so that the bent side edge portion is flattened.

In some embodiments, the method further comprises: and a bending tool for bending the reinforcing film at the first portion side.

In some embodiments, the bending tool has a partition wall portion inserted between the at least one pair of reinforcing films held by the grip portion with a space therebetween.

In some embodiments, the first pressure-bonding section is configured to cause at least a part of the first portion to be pressure-bonded to the removing section by one or more pressing sections inserted into one or more holes provided in the bending tool.

In some embodiments, the opening forming portion includes a pair of rod portions inserted between the removed portions of the fastener stringers, and an interval between the pair of rod portions is increased in a chain width direction of the fastener stringer.

In some embodiments, the apparatus further includes a first conveying table including a first table piece and a second table piece arranged to have a gap extending in a conveying direction of the fastener stringer, and the fastener stringer is conveyed between the first table piece and the second table piece in a state where the coupling element and the removing portion included in the fastener stringer are exposed from the gap on a main surface of the first conveying table.

In some embodiments, the first pressure-bonding section may pressure-bond a first portion of the reinforcing film to the removing section exposed on the main surface of the first conveying table.

In some embodiments, the transverse pulling portion transversely pulls each portion of the fastener stringer in a pulled state of the fastener stringer which is pulled by the first slider and closed by the second slider.

In some embodiments, the slide fastener device further includes a second conveying table that is provided with an intermediate guide between the third table piece and the fourth table piece and conveys the fastener stringer in a state where: the elements of the one fastener stringer disposed on the third plate are disposed between the intermediate guide and the third plate, and the elements of the other fastener stringer disposed on the fourth plate are disposed between the intermediate guide and the fourth plate 214.

In some embodiments, the second pressure-bonding section pressure-bonds the second portion of the reinforcing film to a first tape surface of the fastener tape on which the fastener elements are provided, on the main surface of each of the third and fourth base pieces.

In some embodiments, the apparatus further includes a pushing tool that pushes up the removing portion located between the intermediate guide and the third table piece and/or the removing portion located between the intermediate guide and the fourth table piece.

According to an aspect of the present invention, a method for attaching a reinforcing film to a zipper tape, includes:

Effects of the invention

According to an aspect of the present invention, it is possible to facilitate more appropriate attachment of the reinforcing film to the removed portion of the fastener stringer.

Drawings

Fig. 1 is a schematic partial perspective view of a non-limiting example of a zipper strip processed by the apparatus and method of the present invention.

Fig. 2 is a schematic partial front view of a fastener stringer of one non-limiting example processed by the apparatus and method of the present invention, and shows coupling elements in a coupled state.

Fig. 3 is a schematic partial front view of a fastener stringer of one non-limiting example processed by the apparatus and method of the present invention, in which fig. 3(a) shows a removed portion where an element provided at a bent side edge portion of a fastener tape is removed, fig. 3(b) shows a state where a first portion of a reinforcing tape is attached to the removed portion, and fig. 3(c) shows a state where a second portion other than the first portion of the reinforcing tape is attached to a first tape surface of the fastener tape where the element is provided.

Fig. 4 is a schematic cross-sectional view of a fastener stringer of one non-limiting example processed by the apparatus and method of the present invention, wherein fig. 4(a) to 4(c) correspond to fig. 3(a) to 3 (c).

Fig. 5 is a block diagram showing a schematic configuration of a manufacturing apparatus of a fastener stringer with a reinforcing film according to a non-limiting example of the present invention.

Fig. 6 is a schematic partial perspective view showing a fastener stringer which is conveyed by a first conveyance stage of a manufacturing apparatus of a fastener stringer with a reinforcing film according to a non-limiting example of the present invention, wherein the fastener stringer is conveyed between a first stage piece and a second stage piece in a state where a coupling element and a removed portion are exposed on a main surface of the first conveyance stage from a gap between the first stage piece and the second stage piece included in the first conveyance stage.

Fig. 7 is a schematic partial perspective view showing a case where an opening is formed in the fastener stringer shown in fig. 6 by an opening forming portion of a manufacturing apparatus of a fastener stringer with a reinforcing film according to a non-limiting example of the present invention, wherein an opening OP10 defined at least partially by a removed portion 50 of each fastener stringer 20 is formed in the fastener stringer 10, the fastener stringer 10 is formed by joining a pair of fastener stringers 20 each having a fastener element 40 provided on a bent side edge portion 35 formed by folding back one side edge portion of a fastener tape 30, and the removed portion 50 from which the fastener element 40 is removed is provided in each fastener stringer 20.

Fig. 8 is a schematic partial perspective view showing a grip portion of a manufacturing apparatus of a fastener stringer with a reinforcing film according to one non-limiting example of the present invention passing through an opening of the fastener stringer shown in fig. 7.

Fig. 9 is a schematic view showing an operation of a grip portion of an apparatus for manufacturing a fastener stringer with a reinforcing film according to a non-limiting example of the present invention, in which the grip portion passes through an opening formed between adjacent removed portions of a pair of fastener stringers, grips the reinforcing film supplied from a film supply portion, and then returns to the opening side.

Fig. 10 is a schematic partial perspective view for explaining an operation of a folding tool in a manufacturing apparatus of a fastener stringer with a reinforcing film according to a non-limiting example of the present invention.

Fig. 11 is a schematic partial perspective view for explaining an operation of a folding tool for folding a first part side of a reinforcing film in a manufacturing apparatus of a fastener stringer with a reinforcing film according to one non-limiting example of the present invention.

Fig. 12 is a schematic view showing a state in which a pair of reinforcing films are positioned within an opening as a result of a grip portion being appropriately driven by a first driving portion in a manufacturing apparatus for a fastener stringer with a reinforcing film according to one non-limiting example of the present invention, wherein a first portion of the reinforcing film is disposed adjacent to a removal portion, and a second portion other than the first portion of the reinforcing film is disposed between fastener stringers and faces a tape surface to be attached. For ease of illustration, it is shown that the selected bending tool is not in contact with the reinforcement film, but in practice it is contemplated that the two are in contact. By performing the step of positioning at least a pair of reinforcing films 60 in the opening OP10, the first portion 61 of the reinforcing film 60 is disposed adjacent to the removed part 50, and the second portion 62 of the reinforcing film 60 other than the first portion 61 is disposed between the fastener stringers 20.

Fig. 13 is a schematic diagram showing a configuration and an operation of a first pressure-bonding section of an apparatus for manufacturing a fastener stringer with a reinforcing film according to a non-limiting example of the present invention, in which a first portion is partially pressure-bonded to a removed portion by a pressing section inserted into a hole provided in a bending tool, and the reinforcing film is partially pressure-bonded to the removed portion by the first pressure-bonding section in a state where the reinforcing film is bent to the first portion side by the bending tool, and a step of pressure-bonding a first portion 61 of a reinforcing film 60 to the removed portion 50 is performed.

Fig. 14 is a schematic diagram showing an operation of a first pressure-bonding section of an apparatus for manufacturing a fastener stringer with a reinforcing film according to a non-limiting example of the present invention, in which the first pressure-bonding section directly pressure-bonds a first portion of the reinforcing film to a removed portion without using a bending tool, and a step of pressure-bonding a first portion 61 of the reinforcing film 60 to the removed portion 50 is performed.

Fig. 15 is a schematic cross-sectional view of a fastener stringer of one non-limiting example processed by the apparatus and method of the present invention, in which fig. 15(a) shows a state in which a first portion of a reinforcing film is attached to a removed portion, fig. 15(b) shows a state in which the fastener stringer is pulled in a lateral direction, fig. 15(c) shows a state in which a second portion of the reinforcing film is attached to a first tape surface of the fastener tape in the fastener stringer in the lateral direction, and fig. 15(d) shows the fastener stringer to which each reinforcing film is attached to each fastener stringer.

Fig. 16 is a schematic partial perspective view showing a fastener stringer conveyed by the second conveying table in the manufacturing apparatus of a fastener stringer with a reinforcing film according to a non-limiting example of the present invention, in which the fastener stringer in a conveyance stopped state is pulled to both sides in the chain width direction by the lateral pulling portion, and the lateral pulling portion laterally pulls each portion of the fastener stringer in a pulled state of the fastener stringer which is pulled by the first slider and closed by the second slider.

Fig. 17 is a schematic cross-sectional view showing a conveying mode of a fastener stringer in a second conveying stage of a manufacturing apparatus for a fastener stringer with a reinforcing film according to a non-limiting example of the present invention, the second conveying stage including a third sheet and a fourth sheet, and an intermediate guide provided between the third sheet and the fourth sheet.

Fig. 18 is a schematic cross-sectional view showing a state in which a fastener chain is laterally pulled by a lateral pulling portion of an apparatus for manufacturing a fastener stringer with a reinforcing film according to a non-limiting example of the present invention.

Fig. 19 is a schematic cross-sectional view showing a state where the removed part between the center guide and the third stage sheet and the removed part between the center guide and the fourth stage sheet are pushed by the pushing tool of the manufacturing apparatus of the fastener stringer with the reinforcing film of one non-limiting example of the present invention.

Fig. 20 is a schematic cross-sectional view showing a second pressure-bonding section of an apparatus for manufacturing a fastener stringer with a reinforcing film according to a non-limiting example of the present invention, in which a second portion of the reinforcing film is pressure-bonded to a first tape surface provided with fastener elements of a fastener tape in a state where a fastener chain is laterally pulled by a lateral pulling portion so that a bent side edge portion is flattened, wherein a step of pressure-bonding a second portion 62 of the reinforcing film 60 to the first tape surface 31 provided with the fastener elements 40 of the fastener tape 30 in a state where a fastener chain 10 is laterally pulled so that a bent side edge portion 35 is flattened is performed.

Fig. 21 is a diagrammatic cross-sectional view of another non-limiting example of a zipper strip processed by the apparatus and method of the present invention.

Fig. 22 is a schematic view showing a first opening shape of the opening of the fastener stringer.

Fig. 23 is a schematic view showing a second opening shape of the opening of the fastener stringer.

Description of the reference numerals

10 zipper strip

20 zipper teeth chain belt

30 zipper tape

40 zipper teeth

50 removing part

60 reinforced membrane

120 opening forming part (opening forming unit)

130 holding part (holding unit)

140 first driving part (first driving unit)

170 first crimp part (first crimp unit)

220 horizontal pulling part (horizontal pulling unit)

230 second crimp part (second crimp unit)

Detailed Description

Non-limiting embodiments of the present invention will be described below with reference to fig. 1 to 23. The features included in each embodiment example and each embodiment example of one or more embodiment examples of the present invention are not independent of each other. Those skilled in the art are able to combine the embodiments and/or features without undue explanation and also understand the synergistic effect obtained by this combination. In principle, a repetitive description between the embodiment examples is omitted. The main purpose of the reference figures is to illustrate the invention, which for convenience of drawing is sometimes simplified.

Fig. 1 is a schematic partial perspective view of a non-limiting example of a zipper strip processed by the apparatus and method of the present invention. Fig. 2 is a schematic partial front view of the fastener stringer, showing the coupling elements in a coupled state. Fig. 3 is a schematic partial front view of the fastener stringer. Fig. 3(a) shows a removed portion where the fastener elements provided at the folded-over side edge portion of the fastener tape are removed. Fig. 3(b) shows a state where the first part of the reinforcing tape is attached to the removed part. Fig. 3(c) shows a state where a second portion other than the first portion of the reinforcing tape is attached to the first tape surface of the fastener tape provided with the fastener elements. Fig. 4 is a schematic cross-sectional view of the fastener chain, and fig. 4(a) to 4(c) correspond to fig. 3(a) to 3 (c).

As shown in fig. 1, the fastener stringer 10 includes a pair of right and left fastener stringers 20. Each fastener stringer 20 has a fastener tape 30 and an element 40 provided at a folded side edge portion 35 of the fastener tape 30. The fastener tape 30 has a tape main body portion 36 and a bent side edge portion 35 joined to the tape main body portion 36.

The folded side edge portion 35 of the fastener tape 30 is a portion formed by folding back one side edge portion of the fastener tape 30. The folding back of one side edge portion of the fastener tape 30 causes one tape surface of the fastener tape 30, specifically, a second tape surface 32 described later, to face each other. The bent side edge portion 35 includes a bent portion 37 connected to the belt main body portion 36, and a mounting portion 38 on which the fastener element 40 is mounted on the side opposite to the belt main body portion 36. When the fastener stringer 10 is closed, the bent portions 37 of the fastener stringers 20 contact each other, and a concave portion 39 is generated on one surface side of the fastener stringer 10. The recess 39 extends along the longitudinal direction of the fastener stringer 10. Further, a configuration in which a small gap is formed between the bent portions 37 of the fastener stringers 20 when the fastener stringer 10 is closed may be assumed.

As an example, one side edge portion of the fastener tape 30 is immersed in a synthetic resin solution, and the immersed synthetic resin is cured by heating the side edge portion, thereby constructing a folded side edge portion 35 in the fastener tape 30. It is also conceivable to provide the fastener tape 30 with the bent side edge portion 35 by another method.

The fastener strip 30 has a first strip face 31 and a second strip face 32. The thickness of the fastener strip 30 is determined by the first strip face 31 and the second strip face 32. The tape main body portion 36 of the fastener tape 30 faces the placement portion 38 of the folded side edge portion 35 of the fastener tape 30 with a gap therebetween. The second belt surface 32 of the belt body 36 faces the second belt surface 32 of the mounting portion 38 with a gap. The fastener tape 30 is formed of a flexible material such as a woven fabric, a knitted fabric, or a mixture thereof, but is not limited thereto.

The fastener elements 40 are provided on the first tape surface 31 of the fastener tape 30, and more specifically, on the first tape surface 31 of the placement portion 38 of the bent side edge portion 35 of the fastener tape 30. The element 40 is illustrated as a spiral element (coil element) formed by winding a monofilament. In another example, another element such as a resin or metal element may be used. As is clear from fig. 2, the core thread 41 is passed through the fastener element 40 and sewn to the folded side edge portion 35 of the fastener tape 30 by a double-lock stitch method using a sewing thread 42. In another example, the fastener elements 40 can be secured to the bent over side edge portions 35 by another method.

As is apparent from fig. 1 and 2, when the fastener stringer 10 is closed, the left and right elements 40 in the coupled state are covered with the tape main body portions 36 of the left and right fastener tapes 30, and the visual confirmation of the coupled left and right elements 40 from the side of the fastener stringer 10 where the recess 39 is formed is hindered. The engaging heads of the right and left coupling elements 40, which visually confirm the coupling state through a small gap between the right and left bent portions 37, are allowed. From such a viewpoint, the fastener stringer 10 is a fastener stringer for a slide fastener which can be sewn to clothes, shoes, bags, and the like in a form in which the fastener elements 40 are hidden. Such a slide fastener is opened and closed by using a dedicated slider. Examples of the structure of the slider include those shown in fig. 5 and 6 of patent document 1, and the entire disclosure of patent document 1 is incorporated herein by reference.

As is apparent from fig. 3, in the fastener stringer 10 formed by coupling the pair of right and left fastener stringers 20 provided with the fastener elements 40 at the folded side edge portion 35 of the fastener tape 30, the removal portion 50 from which the fastener elements 40 are removed is provided at each fastener stringer 20. A plurality of elements 40 of a certain length or an indefinite length are present along the folded side edge portion 35 of the fastener tape 30. The removed part 50 is a region located between the fastener elements 40 adjacent in the longitudinal direction of the fastener stringer 10. As is apparent from the above description with reference to fig. 2, in the removed part 50 of one non-limiting example shown in fig. 3, the fastener elements 40 are not present, and the core wire 41 and the suture 42 are present. In some cases, in the removed portion 50, the fastener elements 40 and the stitches 42 are absent, and the core wire 41 is present. Or, in another case, in the removed part 50, the fastener elements 40, the core wire 41, and the suture 42 are absent.

As is apparent from fig. 3 and 4, in the embodiment of the present invention, the first portion 61 of the reinforcing film 60 is attached to the removed portion 50, and then the second portion 62 of the reinforcing film 60 is attached to the first tape surface 31 of the fastener tape 30. In this case, the lengths of the first and

second portions

61 and 62 of the reinforcing film 60 may be predetermined. The reinforcing film 60 is suitably attached to the removing portion 50 and the fastener tape 30 by an apparatus and a method described later. It is possible to suppress or avoid the occurrence of the reinforcement film 60 remaining at the position indicated by the arrow P1 in fig. 4(c) and the insufficient adhesion of the reinforcement film 60 to the bent side edge portion 35 at the positions indicated by the arrows P2 and P3.

Hereinafter, a manufacturing apparatus and a manufacturing method of a fastener stringer with a reinforcing film according to one non-limiting example of the present invention will be described without limitation with reference to fig. 5 to 20. Hereinafter, the manufacturing apparatus of the fastener stringer with the reinforcing film is simply referred to as a manufacturing apparatus. Fig. 5 is a block diagram showing a schematic configuration of a manufacturing apparatus. Fig. 6 is a schematic partial perspective view showing the fastener stringer conveyed by the first conveyance stage of the manufacturing apparatus. The fastener stringer is conveyed between the first piece and the second piece in a state where the coupling element and the removing portion are exposed on the main surface of the first conveying table from a gap between the first piece and the second piece included in the first conveying table. Fig. 7 is a schematic partial perspective view showing an opening formed in the fastener stringer shown in fig. 6 by an opening forming portion of a manufacturing apparatus. Fig. 8 is a schematic partial perspective view showing the grip portion of the manufacturing apparatus passing through the opening of the fastener stringer shown in fig. 7. Fig. 9 is a schematic view showing an operation of the grip portion of the manufacturing apparatus. The holding portion passes through an opening formed between adjacent removed portions in a pair of fastener stringers, holds the reinforcing film supplied from the film supplying portion, and then returns to the opening side. Fig. 10 is a schematic partial perspective view for explaining the operation of the bending tool of the manufacturing apparatus. Fig. 11 is a schematic partial perspective view for explaining the operation of the bending tool of the manufacturing apparatus. The bending tool laterally bends the first portion of the reinforcing film. Fig. 12 is a schematic view showing a state in which the grip portion is appropriately driven by the first driving portion in the manufacturing apparatus, and as a result, the pair of reinforcing films are positioned within the opening. The first portion of the reinforcing film is disposed adjacent to the removal portion. The second portion of the reinforcing film other than the first portion is disposed between the fastener stringers so as to face the tape surface to be attached. For convenience of illustration, the selected bending tool is shown not in contact with the reinforcement film, but in practice it is envisaged that the two will be in contact. Fig. 13 is a schematic diagram showing the structure and operation of the first pressure-bonding section of the manufacturing apparatus. The first portion is partially pressed against the removing portion by a pressing portion inserted through a hole provided in the bending tool. The reinforcing film is partially crimped with the removed portion by the first crimp portion in a state where it is bent at the first portion side by the bending tool. Fig. 14 is a schematic diagram showing an operation of the first pressure-bonding section of the manufacturing apparatus. The first crimping portion directly crimps the first portion of the reinforcing film and the removal portion without a bending tool. Fig. 15 is a schematic cross-sectional view of the fastener stringer. Fig. 15(a) shows a state where the first part of the reinforcing film is attached to the removed part. Fig. 15(b) shows a state where the fastener stringer is pulled in the lateral direction. Fig. 15(c) shows a state where the second portion of the reinforcing film is attached to the first tape face of the fastener tape in the fastener stringer in the laterally pulled state. Fig. 15(d) shows a fastener stringer in which each reinforcing film is attached to each fastener stringer. Fig. 16 is a schematic partial perspective view showing the fastener stringer conveyed by the second conveyance stage in the manufacturing apparatus. The slide fastener stringer in the conveyance stopped state is pulled to both sides in the chain width direction by the lateral pulling portion. The transverse pulling part transversely pulls each part of the zipper teeth chain in the pulling state of the zipper strips which are pulled by the first pulling head and closed by the second pulling head. Fig. 17 is a schematic cross-sectional view showing a conveyance state of a slide chain in the second conveyance table of the manufacturing apparatus. The second conveying table has a third table piece, a fourth table piece, and an intermediate guide member provided between the third table piece and the fourth table piece. Fig. 18 is a schematic cross-sectional view showing a state in which a chain is pulled laterally by a lateral pulling portion of the manufacturing apparatus. Fig. 19 is a schematic cross-sectional view showing a state where the removing portion between the intermediate guide and the third table and the removing portion between the intermediate guide and the fourth table are pushed by the pushing tool of the manufacturing apparatus. Fig. 20 is a schematic cross-sectional view showing that the second pressure-bonding section of the manufacturing apparatus pressure-bonds the second portion of the reinforcing film to the first tape surface of the fastener tape on which the fastener elements are provided, in a state where the fastener chain is laterally pulled by the lateral pulling section so that the bent side edge portions are flattened.

As shown in fig. 5, the manufacturing apparatus 1 includes a first conveying table 110, an opening forming section 120, a gripping section 130, a first driving section 140, a film supplying section 150, a bending tool 160 (see fig. 10 and 11), a first pressure-bonding section 170, a second conveying table 210, a horizontal pulling section 220, and a second pressure-bonding section 230. There are the following cases: the opening forming section 120, the grip section 130, the first driving section 140, the film supply section 150, the first pressure-bonding section 170, the transverse-pulling section 220, and the second pressure-bonding section 230 are referred to as an opening forming unit, a film supply unit, a transverse-pulling unit, and a second pressure-bonding unit, respectively.

The fastener stringer 10 formed by coupling the fastener stringers 20 having the removed portions 50 provided at the bent side edge portions 35 as shown in fig. 3(a) is conveyed by the first conveying table 110. When the slide fastener 10 conveyed by the first conveying table 110 stops being conveyed, the opening forming portion 120, the gripping portion 130, the first pressure-bonding section 170, and the like operate. Alternatively, the bending tool 160 is actuated. Thereby, as shown in fig. 3(b) and 4(b), the first part 61 of the reinforcing film 60 is attached to the removal part 50.

Next, the fastener stringer 10, to which the first portion 61 of the reinforcing film 60 is attached to the removing portion 50, passes through the flip-up and down portion 93, in which process the fastener chain 10 is flipped so that the fastener elements 40 change from being directed upward to being directed downward. The up-down turning part 93 may be omitted according to the embodiment.

Subsequently, the fastener stringer 10 is conveyed by the second conveying table 210. When the slide fastener 10 conveyed by the second conveying table 210 stops being conveyed, the lateral pulling portion 220, the second pressure-bonding portion 230, and the like operate. Thereby, as shown in fig. 3(c) and 4(c), the second portion 62 of the reinforcing film 60 is attached to the first tape surface 31 of the fastener tape 30.

The attachment of the reinforcing film 60 to the removed portion 50 and the first tape surface 31 of the fastener tape 30 can be performed by various methods. For example, when an adhesive layer is provided on one surface of the reinforcing film 60, the reinforcing film 60 can be attached to the removed portion 50 or the first tape surface 31 and pressure-bonded thereto only by pressing the reinforcing film 60 against the removed portion or the first tape surface 31. When the reinforcing film 60 is formed of a soft material, the reinforcing film 60 can be attached to the removed portion 50 or the first tape surface 31 and pressure-bonded thereto only by pressing the reinforcing film 60 against the removed portion or the first tape surface 31. In addition to the pressure bonding that can be performed by the various forms described above, ultrasonic waves and/or heat application may alternatively be employed. By heating, the fastener tape 30 itself or a melted layer provided to the fastener tape 30 is softened or melted, whereby the reinforcing film 60 can be promoted to be sufficiently pressed against the fastener tape 30.

In this example, the reinforcing film 60 is thermally compression-bonded to the removing portion 50 and the first belt surface 31, and firmly fixed thereto. The reinforcing film 60 is formed of a resin material having extensibility by heating. The reinforcing film 60 softened by heating can be attached to the removed portion 50 sufficiently closely, and similarly, can be attached to the fastener tape 30 sufficiently closely. The reinforcing film 60 is stretched at the time of thermocompression bonding, and the reinforcing film 60 is fixed to the fastener tape 30 within an appropriate range. When the reinforcing film 60 is transparent, if air is present between the reinforcing film 60 and the fastener tape 30, the fixing of the two is reduced, and the reinforcing film 60 is clouded. Such a problem can be suppressed or avoided by the cooperation of the lateral pulling portion 220 and the second pressure-bonding portion 230.

The manufacturing apparatus 1 uses different types of conveyance stages such as the first conveyance stage 110 and the second conveyance stage 210. Around the first conveying table 110, an opening forming portion 120, a gripping portion 130, a first driving portion 140, a film supplying portion 150, a bending tool 160, and a first pressure-bonding portion 170 are arranged, and a set of these components is referred to as a first device 91. Around the second conveying table 210, a lateral pull portion 220 and a second pressure-bonding portion 230 are arranged, and a set of these components is referred to as a second device 92. In some cases, the housing frame of the first device 91 is physically distinct from the housing frame of the second device 92. In other cases, the housing frame of the first device 91 is the same as the housing frame of the second device 92, with no physical distinction.

As can be seen from fig. 5, the first conveyance table 110 has an upstream portion 110A and a downstream portion 110B. As is apparent from fig. 6, the first conveying table 110 is provided with a first sheet 111 and a second sheet 112 extending in the conveying direction of the fastener stringer 10 and disposed with a gap between the first sheet and the second sheet in the upstream portion 110A and the downstream portion 110B. The fastener stringer 10 is conveyed between the first section 111 and the second section 112 in a state where the coupling element 40 and the removed portion 50 included in the fastener stringer 10 are exposed on the main surface 115 of the first conveying table 110 from the gap between the first section 111 and the second section 112. A free space that allows the operation of the slide chain 10 exists between the upstream portion 110A and the downstream portion 110B of the first conveying table 110.

As is clear from fig. 12, the first piece 111 and the second piece 112 are configured to allow the shape of the fastener stringer 10 in a skirt (skirt) shape to be conveyed. The main surfaces of the first platform piece 111 and the second platform piece 112 are flat surfaces. The first and

second stages

111, 112 have

side surfaces

111r, 112r opposed to each other at a space. The distance between the side surface 111r and the side surface 112r increases in a direction away from the respective main surfaces of the first platform piece 111 and the second platform piece 112. That is, the first platform piece 111 has an edge portion tapered toward the second platform piece 112. The second platform 112 has an edge portion tapered toward the first platform 111. The edge portions are provided so as to maintain the flatness of the main surface of each sheet.

The opening forming part 120 included in the first device 91 may form an opening OP10 defined at least in part by the removed part 50 of each fastener stringer 20. In the example of fig. 7, the opening forming part 120 includes a pair of rod parts inserted between the removed parts 50 of each fastener stringer 20. The interval between the pair of rod portions is increased in the chain width direction of the fastener stringer 10. Thus, an opening OP10 defined at least partially by the removed portion 50 of each fastener stringer 20 is formed in the fastener stringer 10. Other forms of forming the opening OP10 in the fastener stringer 10 by the same method as the method of forming the lateral pull portion 220 illustrated in the drawings to be described later are also conceivable.

The opening OP10 formed by the opening forming part 120 is not limited to the structure defined by the removed part 50 of each fastener stringer 20. The opening OP10 is sometimes defined by the removed part 50 of each fastener stringer 20 and the element 40 of each fastener stringer 20. In the latter case, the opening OP10 is longer in the conveying direction of the fastener stringer 10, and interference between the fastener stringer 10 and the grip portion 130 can be suppressed or avoided.

The grip portion 130 included in the first device 91 is configured to grip at least a pair of reinforcing films 60. The first driving unit 140 moves the grip portion 130 so that the first portion 61 of the reinforcing film 60 is disposed adjacent to the removed portion 50 and the second portion 62 of the reinforcing film 60 other than the first portion 61 is disposed between the fastener stringers 20. By the cooperation of the grip portion 130 and the first driving portion 140, at least one pair of reinforcing films 60 are positioned in the opening OP10, the first portion 61 of the reinforcing films 60 is disposed adjacent to the removal portion 50, and the second portion 62 of the reinforcing films 60 other than the first portion 61 is disposed between the fastener stringers 20. The second portion 62 of the reinforcing film 60 is disposed between the tape main body portions 36 of the respective fastener tapes 30. That is, the second portion 62 of the reinforcing film 60 is disposed on the fastener tape 30 to be attached.

Without particular limitation, the grip portion 130 illustrated in fig. 9 and the like as an example includes a main body portion 131, and a pair of claw portions 134 that grip the reinforcing film 60 between the main body portion 131. The body 131 includes a tapered portion 132 and a wall portion 133 provided at a distal end of the tapered portion 132. Each reinforcing film 60 is held between the claw portion 134 and the wall portion 133. The opening and closing of the claw portion 134 is controlled at an appropriate timing by a control unit not shown.

As is apparent from fig. 8 and 9, the first driving unit 140 moves the grip 130 toward the film supply unit 150 through the opening OP10 formed by the opening forming unit 120. The gripping portion 130 reaching the vicinity of the film supply portion 150 grips the pair of reinforcing films 60 supplied from the film supply portion 150. In the illustrated example, the holding portion 130 is then lowered relative to the film supply portion 150, and each reinforcing film 60 held by the holding portion 130 is cut to an appropriate length by the film cutting tool 152. Another mode of supplying the cut reinforcing film 60 from the film supply portion 150 to the grip portion 130 is also conceivable. The grip portion 130 continues to descend to a position closer to the fastener stringer 10 as shown in fig. 10.

The first driving unit 140 is formed by a combination of various mechanical components and/or electrical components. As is well known, a ball screw and an electric cylinder, an air cylinder, or the like are used for the movement along one axis. As is well known, a combination of a ball screw and an electric cylinder, an air cylinder, or the like is used for the movement along the two axes. In the present example, the grip 130 operates along two axes. The first driving unit 140 may be formed by a combination of a ball screw, an electric cylinder, an air cylinder, and the like. The first driving unit 140 sets the grip 130 at an appropriate position at an appropriate timing in accordance with an instruction from a main control unit, not shown. Those skilled in the art can understand how to form the driving unit using an electromechanical component such as a ball screw, an electric cylinder, and an air cylinder without giving a detailed description.

The film supply unit 150 may have one or more reels around which the reinforcing film 60 before cutting for sheet fixing is wound. In this case, the grip portion 130 gripping the reinforcing film 60 is lowered, whereby the reinforcing film 60 is fed from the reel. Other examples are conceivable in which the film supply section 150 is configured in a different manner.

As shown in fig. 10 and 11, the manufacturing apparatus 1 bends the reinforcing film 60 on the first portion 61 side using a selected bending tool 160. In the manufacturing apparatus 1, the reinforcing film 60 is inserted into the opening OP10 in a state of being bent on the first portion 61 side by the bending tool 160. The folded first portion 61 of the reinforcing film 60 can facilitate surrounding (covering) of the core wire 41 of the removed part 50.

The bending tool 160 includes a pressing portion 161 for bending the first portion 61 of the reinforcing film 60, and a partition wall portion 162 interposed between at least a pair of reinforcing films 60 arranged at a spaced interval. The bending tool 160 is moved from the position shown in fig. 10 to the position shown in fig. 11 by the second driving section 165. When the bending tool 160 is moved, the partition wall 162 is inserted into the gap between the pair of reinforcing films 60 held by the holding portion 130, and then the first portion 61 of the reinforcing film 60 falls down to the side away from the partition wall 162 due to the interference between the first portion 61 of the reinforcing film 60 and the pressing portion 161, thereby bending the first portion 61 of the reinforcing film 60. As described with respect to the first driving unit 140, the second driving unit 165 may be configured using a ball screw, an electric cylinder, and an air cylinder.

After the bending tool 160 is moved to the position shown in fig. 11, the bending tool 160 is moved in synchronization with the grip portion 130. After the bending tool 160 is moved to the position shown in fig. 11, the grip portion 130 and the bending tool 160 are lowered, and the grip portion 130 passes through the opening OP10, placing or contacting the first portion 61 of the reinforcing film 60 adjacent to the removal part 50. The first portion 61 of the reinforcing film 60 and the removal portion 50 are disposed between the main surface 115 of the first conveying table 110 and the pressing portion 161 of the bending tool 160.

As can be seen from fig. 7, the opening OP10 of the fastener stringer 10 extends between the upstream portion 110A and the downstream portion 110B of the first conveying table 110. The opening OP10 has an upstream end OP10A on the upstream portion 110A side and a downstream end OP10B on the downstream portion 110B side. In the illustrated example, downstream end portion OP10B of opening OP10 is located in the free space between upstream portion 110A and downstream portion 110B. An upstream end portion OP10A of the opening OP10 is located at the upstream portion 110A. In the illustrated example, the upstream portion 110A of the first conveying table 110 functions as a base or an operation table when the first pressure-bonding section 170 performs pressure bonding. This can avoid the need to provide another base or operation table. The upstream portion 110A and the downstream portion 110B need not be separate members, and may be an integral member provided with a free space between the upstream portion 110A and the downstream portion 110B.

The grip 130 moves within the opening OP10 toward the upstream end OP10a of the opening OP10, conveying the reinforcing film 60 to the vicinity of the upstream end OP10a of the opening OP 10. The bending tool 160 also moves in the same manner as the grip portion 130, and maintains the state in which the removing portion 50 is disposed between the bending tool 160 and the first conveying table 110. Another configuration is also conceivable in which the reinforcing film 60 is moved toward the downstream end portion OP10b of the opening OP 10. Further, a mode may be conceived in which the grip portion 130 and the bending tool 160 are lowered to bring the first portion 61 of the reinforcing film 60 into contact with the removing portion 50 and then fed to another operation station.

As shown in fig. 12, the pressing portion 161 of the bending tool 160 is provided with one or more holes 168 penetrating the pressing portion 161 in the thickness direction. A pressing portion 175 of a first pressure-bonding section 170, which will be described later, is inserted into the hole 168. Thus, the first portion 61 of the reinforcing film 60 can be partially pressure-bonded to the removing portion 50 in a state where the removing portion 50 and the reinforcing film 60 are arranged between the main surface 115 of the first conveying table 110 and the bending tool 160. In the illustrated example, the hole 168 is a hole that penetrates the flat plate portion of the pressing portion 161. The hole 168 is a hole having a circular shape in front view.

The first crimping portion 170 crimps the first part 61 of the reinforcing film 60 and the removed portion 50. The first pressure-bonding section 170 pressure-bonds the first part 61 of the reinforcing film 60 to the removal section 50 exposed on the main surface of the first conveying table 110. In the illustrated example, the first press-contact part 170 is lowered toward the first conveying table 110, and the first part 61 of the reinforcing film 60 is press-contacted with the removing part 50.

First, as shown in fig. 13, the first pressure-bonding section 170 is configured to cause at least a part of the first portion 61 of the reinforcing film 60 to be pressure-bonded to the removed section 50 by one or more pressing sections 175 inserted into one or more holes 168 provided in the bending tool 160. This allows the first portion 61 of the reinforcing film 60 to be pressed against the removal portion 50 in a state where the bent first portion 61 surrounds the removal portion 50. In the manufacturing apparatus 1, the first portion 61 of the reinforcing film 60 is pressure-bonded to the removal portion 50 in a state where the reinforcing film 60 is bent on the first portion 61 side by the bending tool 160.

In the example of the present invention, the first pressure bonding part 170 has an internal or external heat source, and heats the first part 61 while pressing the first part 61 by the pressing part 175. The first portion 61 pressed by the pressing portion 175 is melted or softened mainly by heat directly transmitted from the pressing portion 175, and is in close contact with the core wire 41 of the removing portion 50.

The first crimping portion 170 of the illustrated example includes a main body 172, two housing spaces 173 provided in the main body 172, and a combination of a pressing portion 175 and an elastic body 176 arranged in each housing space 173. The pressing portion 175 has a base portion 175k pressed by the elastic body 176 and a shaft portion 175p extending from the base portion 175 k. The base portion 175k of the pressing portion 175 is pressed by the spring of the elastic body 176, and the shaft portion 175p of the pressing portion 175 protrudes from the opening of the housing space 173. The length of the shaft portion 175p of the pressing portion 175 is set to a length sufficient to pass through the hole 168.

Next to fig. 13, the bending tool 160 located between the first crimping part 170 and the first conveying table 110 is withdrawn. That is, the bending tool 160 moves to a position not between the first press contact part 170 and the first conveying table 110. Then, the first press-bonding section 170 is lowered, and the first portion 61 of the reinforcing film 60 and the removing section 50 are pressed against each other by sandwiching the removing section 50 and the first portion 61 of the reinforcing film 60 between the first press-bonding section 170 and the first conveying table 110. The pressure bonding step shown in fig. 13 is a pressure bonding step for preventing the positions of the removal portion 50 and the first portion 61 of the reinforcing film 60 from being shifted. The pressure bonding step shown in fig. 14 is an original pressure bonding step of the first portion 61 of the reinforcing film 60 and the removal portion 50, and can achieve pressure bonding in a wider range.

Then, the manufacturing apparatus 1 pulls the fastener stringer 10 shown in fig. 15(a) in the lateral direction as shown in fig. 15(b), and then presses the reinforcing film 60 against the first tape surface 31 of the fastener tape 30 of the fastener stringer 10 in the lateral pulled state as shown in fig. 15 (c). Thus, the fastener stringer 10 with the reinforcing film 60 as shown in fig. 15(d) is manufactured. In some cases, the manufacturing apparatus 1 or another apparatus on the downstream side penetrates a slider into the fastener stringer 10, and cuts the fastener stringer 10 at the removal portion 50, and supplies the stop portion to the removal portion 50. Thus, a slide fastener not shown is constituted.

As is apparent from fig. 16 and 17, the second conveying table 210 includes a third table piece 213 and a fourth table piece 214, and an intermediate guide 215 provided between the third table piece 213 and the fourth table piece 214. The third piece 213 and the fourth piece 214 have main surfaces of the tape main body portion 36 on which the fastener tape 30 of each fastener stringer 20 is placed. The third piece 213 and the fourth piece 214 have a protrusion 217 that protrudes in a tapered shape toward the intermediate guide 215. The protrusion 217 is in contact with the bending tool 160 of the fastener tape 30, and is located between the tape main body portion 36 and the placement portion 38 of the fastener tape 30. The protrusion 217 is provided so as to extend the flat main surfaces of the third stage piece 213 and the fourth stage piece 214. A portion of the element 40 may be disposed below the protrusion 217.

The intermediate guide 215 extends between the first slider 281 and the second slider 282, and is provided between the fastener stringers 20 in an opened state of the fastener stringer 10 opened by the first slider 281 and closed by the second slider 282. The intermediate guide 215 has an upper guide 218 at a position not interfering with the second crimping portion 230, and the upper guide 218 includes a first flange portion 218f disposed in a gap between the intermediate guide 215 and the third plate 213 and a second flange portion 218k disposed in a gap between the intermediate guide 215 and the fourth plate 214. The first flange portion 218f of the upper guide 218 can prevent the fastener element 40 disposed in the gap between the intermediate guide 215 and the third platform 213 from coming out of the gap. The second flange portion 218k of the upper guide 218 can prevent the fastener element 40 disposed in the gap between the intermediate guide 215 and the fourth step 214 from coming out of the gap.

The fastener stringer 10 is conveyed in a state where the element 40 of the fastener stringer 20 disposed on one side of the third section 213 is disposed between the intermediate guide 215 and the third section 213, and the element 40 of the fastener stringer 20 disposed on the other side of the fourth section 214 is disposed between the intermediate guide 215 and the fourth section 214.

The lateral pulling portion 220 pulls the fastener stringer 10 to both sides in the chain width direction to flatten the bent side edge portion 35. The transverse pulling portion 220 transversely pulls each portion of the fastener stringer 20 in a pulled state of the fastener stringer 10 which is pulled by the first slider 281 and closed by the second slider 282.

As shown in fig. 16, the lateral pull portion 220 has at least one grip portion corresponding to each fastener stringer 20. In the illustrated example, the lateral pulling portion 220 has a total of four first to fourth grips 221 to 224. The first grip portion 221 and the second grip portion 222 are provided to sandwich the fastener stringer 10 in the chain width direction of the fastener stringer 10. The first holding portion 221 holds the fastener tape 30 of the fastener stringer 20 on one side. The second holding portion 222 holds the fastener tape 30 of the other side fastener stringer 20. The first grip portion 221 and the second grip portion 222 move so as to increase the distance therebetween in the chain width direction, thereby facilitating the flattening of the bent side edge portion 35 as shown in fig. 15(a) and 15 (b).

The third grip portion 223 and the fourth grip portion 224 are provided to sandwich the fastener stringer 10 in the chain width direction of the fastener stringer 10. The third gripping portion 223 grips the fastener tape 30 of the fastener stringer 20 on one side. The fourth gripping portion 224 grips the fastener tape 30 of the other side fastener stringer 20. The third grip portion 223 and the fourth grip portion 224 move so as to increase the distance therebetween in the chain width direction, thereby facilitating the flattening of the bent side edge portion 35 as shown in fig. 15(a) and 15 (b). Each of the gripping portions has a pair of arm portions that sandwich the fastener tape 30. The fastener tape 30 is gripped by appropriately adjusting the interval of the gripping ends of the arm portions.

As shown in fig. 18, when the fastener stringer 10 is pulled in the lateral direction by the lateral pulling portion 220, the reinforcing film 60 moves along the first tape surface 31 of the fastener tape 30 or moves close to the first tape surface 31 of the fastener tape 30, that is, spreads on the tape main body portion 36 of the fastener tape 30. This can improve the reliability of the reinforcing film 60 in pressure contact with the first tape surface 31 of the tape main body portion 36 of the fastener tape 30.

In some cases, the lateral pulling portion 220 can move in the conveying direction of the fastener stringer 10. The following positions can be made different in the conveying direction of the fastener stringer 10: a position where the reinforcing film 60 is laid flat on the tape main body portion 36 of the fastener tape 30, and a position where the reinforcing film 60 is pressure-bonded to the tape main body portion 36. In some cases, the reinforcing film 60 is laid on the belt main body portion 36 at a portion (not shown) where the width of the intermediate guide 215 is large, and the pressure-bonding of the reinforcing film 60 and the belt main body portion 36 is performed at a portion (not shown) where the width of the intermediate guide 215 is small.

The manufacturing apparatus 1 has a pushing tool 240, and the pushing tool 240 pushes up the removing portion 50 located between the intermediate guide 215 and the third stage plate 213 and/or the removing portion 50 located between the intermediate guide 215 and the fourth stage plate 214. As shown in fig. 19, when the fastener stringer 10 is pulled in the lateral direction by the lateral pull portion 220, the pushing tool 240 pushes up the removing portion 50 located between the middle guide 215 and the third piece 213 and/or the removing portion 50 located between the middle guide 215 and the fourth piece 214. This improves the flatness of each fastener stringer 20, and promotes good pressure bonding.

The second pressure-bonding section 230 causes the second portion 62 of the reinforcing film 60 to be in pressure-bonding contact with the first tape surface 31 of the fastener tape 30 on which the fastener elements 40 are provided, in a state where the fastener chain 10 is laterally pulled by the lateral pulling section 220 so that the bent side edge portion 35 is flattened. The second pressure-bonding section 230 pressure-bonds the second portion 62 of the reinforcing film 60 to the first tape surface 31 of the fastener tape 30 on which the fastener elements 40 are provided, on the main surfaces of the third piece 213 and the fourth piece 214.

The second crimping portion 230 descends toward the second conveying table 210, sandwiching the laminated portion of the reinforcing film 60 and the fastener tape 30 with the second conveying table 210. The second portion 62 of the reinforcing film 60 is crimped with the first tape face 31 of the fastener tape 30 corresponding to the force transmitted from the second crimp portion 230. Alternatively, ultrasound and/or heat application may be performed.

In the present invention, the second crimping part 230 has a heat source inside or outside, and heats the second part 62 of the reinforcing film 60 while pressing the second part 62. The second portion 62 pressed by the second pressure-bonding section 230 is melted or softened by heat directly transmitted therefrom, and is brought into close contact with the first tape surface 31 of the fastener tape 30.

As is clear from the description of the manufacturing apparatus 1, the embodiment of the present invention also relates to a method for manufacturing a fastener stringer with a reinforcing film. The manufacturing method comprises the following steps:

(1) forming an opening OP10 defined at least partially by the removed portion 50 of each fastener stringer 20 in the fastener stringer 10;

(2) positioning at least a pair of reinforcing films 60 in the opening OP10, thereby disposing the first portion 61 of the reinforcing film 60 adjacent to the removed part 50 and disposing the second portion 62 of the reinforcing film 60 other than the first portion 61 between the fastener stringers 20;

(3) a step of pressure-bonding the first part 61 of the reinforcing film 60 to the removing section 50; and

(4) and a step of pressing the second portion 62 of the reinforcing film 60 against the first tape surface 31 of the fastener tape 30 on which the fastener elements 40 are provided, in a state where the fastener chain 10 is pulled in the lateral direction so that the bent side edge portions 35 are flattened.

In this manufacturing method, the first portion 61 of the reinforcing film 60 is pressed against the removal portion 50 in a state where the reinforcing film 60 is bent on the first portion 61 side by the bending tool 160.

In this manufacturing method, the step of bringing the first portion 61 of the reinforcing film 60 into pressure contact with the removal part 50 includes the steps of: at least a part of the first portion 61 is pressed against the removing part 50 by one or more pressing parts 175 inserted into one or more holes 168 provided in the bending tool 160.

In this manufacturing method, the reinforcing film 60 is inserted into the opening OP10 in a state where the reinforcing film 60 is bent at the first portion 61 side by the bending tool 160.

In this manufacturing method, the step of forming the opening OP10 defined at least partially by the removed portion 50 of each fastener stringer 20 in the fastener stringer 10 includes: the pair of rod portions is inserted between the removed portions 50 such that the interval between the pair of rod portions increases in the chain width direction of the fastener stringer 10.

The manufacturing method further includes the steps of: the fastener element 40 and the removed part 50 in the coupled state included in the fastener stringer 10 are exposed on the main surface of the first conveying table 110 from the gap between the first sheet 111 and the second sheet 112 included in the first conveying table 110, and the fastener stringer 10 is conveyed between the first sheet 111 and the second sheet 112.

In this manufacturing method, the first portion 61 of the reinforcing film 60 is pressed against the removal portion 50 exposed on the main surface of the first conveying table 110.

In this manufacturing method, each portion of the fastener stringer 20 in the unzipped state of the fastener stringer 10 unzipped by the first slider 281 and closed by the second slider 282 is pulled laterally to flatten the folded side edge portion 35.

The manufacturing method further includes, as a step of conveying the fastener stringer 10 on the second conveying table 210 provided with the intermediate guide 215 between the third table piece 213 and the fourth table piece 214: the fastener stringer 10 is conveyed in a state where the elements 40 of the one fastener stringer 20 disposed on the third section 213 are disposed between the intermediate guide 215 and the third section 213, and the elements 40 of the other fastener stringer 20 disposed on the fourth section 214 are disposed between the intermediate guide 215 and the fourth section 214.

In this manufacturing method, the second portion 62 of the reinforcing film 60 is brought into pressure contact with the first tape surface 31 of the fastener tape 30 on which the fastener elements 40 are provided, on the main surfaces of the third blade 213 and the fourth blade 214, respectively.

The manufacturing method further includes the steps of: the removing part 50 between the middle guide 215 and the third stage piece 213 and/or the removing part 50 between the middle guide 215 and the fourth stage piece 214 are pushed by the pushing member 240.

In this manufacturing method, the opening OP10 extends between adjacent removed portions 50 and between adjacent unbonded elements 40.

As is apparent from the description of the manufacturing apparatus 1 and the manufacturing method, the embodiment of the present invention also relates to a method of attaching the reinforcing film 60 to the fastener stringer 10. The method comprises the following steps:

Fig. 21 is a diagrammatic cross-sectional view of another non-limiting example of a zipper strip processed by the apparatus and method of the present invention. It is conceivable that the fastener stringer 10 having no core thread 41 and no stitch 42 in the removed portion 50 is processed by the manufacturing apparatus 1 or the manufacturing method of the present invention as shown in fig. 21. In such a case, the same effects as those described above can be achieved.

Fig. 22 is a schematic view showing a first opening shape of the opening OP10 of the fastener stringer 10. Fig. 23 is a schematic view showing a second opening shape of the opening OP10 of the fastener stringer 10. The case of the second opening shape shown in fig. 23 is different from the case of the first opening shape shown in fig. 22 in that the opening OP10 extends between the left and right elements 40 which are not engaged. In either case of fig. 22 and 23, the opening OP10 is defined at least in part by the removed portion 50 of each fastener stringer 20 of the fastener stringer 10.

Based on the above teachings, one skilled in the art can make various modifications to the embodiments. Reference numerals included in the claims are for reference and are not intended to be used to construe the claims restrictively.

Claims

1. A method of manufacturing a fastener stringer with a reinforcing film, comprising:

a step of forming an opening (OP10) in a fastener stringer (10) at least partially defined by a removed portion (50) of each fastener stringer (20), wherein the fastener stringer (10) is formed by joining a pair of fastener stringers (20) each having an element (40) provided on a bent side edge portion (35) formed by folding back one side edge portion of a fastener tape (30), and the removed portion (50) from which the element (40) is removed is provided on each fastener stringer (20);

positioning at least one pair of reinforcing films (60) in the opening (OP10), thereby disposing a first portion (61) of the reinforcing films (60) adjacent to the removal portion (50) and disposing a second portion (62) of the reinforcing films (60) other than the first portion (61) between the fastener stringers (20);

a step of bringing a first portion (61) of the reinforcing film (60) into pressure contact with the removal section (50); and

and a step of pressing the second portion (62) of the reinforcing film (60) against a first tape surface (31) of the fastener tape (30) on which the fastener elements (40) are provided, in a state where the fastener stringer (10) is pulled laterally so that the bent side edge portion (35) is flattened.

2. The manufacturing method according to claim 1, characterized in that:

the first portion (61) of the reinforcing film (60) is pressed against the removal portion (50) in a state where the reinforcing film (60) is bent on the first portion (61) side by a bending tool (160).

3. The manufacturing method according to claim 2, characterized in that:

the step of bringing the first portion (61) of the reinforcing film (60) into pressure contact with the removal section (50) includes the steps of: at least a part of the first portion (61) is pressed against the removing portion (50) by one or more pressing portions (175), the one or more pressing portions (175) are inserted into one or more holes (168) provided in the bending tool (160), and one pressing portion (175) is inserted into one hole (168).

4. The manufacturing method according to claim 2 or 3, characterized in that:

inserting the reinforcing film (60) into the opening (OP10) in a state where the reinforcing film (60) is bent on the first portion (61) side by the bending tool (160).

5. The manufacturing method according to claim 2 or 3, characterized in that:

the bending tool (160) has a partition wall portion (162) interposed between the at least one pair of reinforcing films (60) arranged at intervals.

6. The manufacturing method according to claim 1, characterized in that:

the step of forming an opening (OP10) in the fastener stringer (10), which is defined at least partially by the removed portion (50) of each fastener stringer (20), includes: a pair of rod sections are inserted between the removal sections (50) such that the distance between the pair of rod sections increases in the chain width direction of the fastener stringer (10).

7. The manufacturing method according to claim 1, 2 or 6, characterized in that:

further comprising the steps of: the fastener stringer (10) is conveyed between a first piece (111) and a second piece (112) included in a first conveying table (110) in a state where a coupling element (40) and a removal portion (50) included in the fastener stringer (10) are exposed on a main surface of the first conveying table (110) from a gap between the first piece (111) and the second piece (112).

8. The manufacturing method according to claim 7, characterized in that:

the first portion (61) of the reinforcing film (60) is pressed against the removal section (50) exposed on the main surface of the first conveying table (110).

9. The manufacturing method according to claim 1, characterized in that:

the fastener stringer (20) in the unzipped state of the fastener stringer (10) which is unzipped by the first slider (281) and closed by the second slider (282) is laterally pulled to flatten the folded side edge portion (35).

10. The manufacturing method according to claim 1 or 9, characterized in that:

further comprising the following steps of conveying the fastener stringer (10) on a second conveying table (210) having an intermediate guide (215) provided between a third table piece (213) and a fourth table piece (214): the fastener stringer (10) is conveyed in a state where the elements (40) of the fastener stringer (20) on one side disposed on the third section (213) are disposed between the intermediate guide (215) and the third section (213), and the elements (40) of the fastener stringer (20) on the other side disposed on the fourth section (214) are disposed between the intermediate guide (215) and the fourth section (214).

11. The manufacturing method according to claim 10, characterized in that:

the second portion (62) of the reinforcing film (60) is brought into pressure contact with the first tape surface (31) on the main surface of each of the third sheet (213) and the fourth sheet (214).

12. The manufacturing method according to claim 10, characterized in that:

further comprising the steps of: pushing the removing part (50) between the middle guide (215) and the third table piece (213) and/or the removing part (50) between the middle guide (215) and the fourth table piece (214) by a pushing tool (240).

13. The manufacturing method according to claim 1, characterized in that:

the openings (OP10) extend between adjacent ones of the removed portions (50) and between adjacent ones of the elements (40) that are not joined.

14. An apparatus for manufacturing a fastener stringer with a reinforcing film, comprising:

an opening forming portion (120) that forms an opening (OP10) defined at least partially by a removed portion (50) of each fastener stringer (20) in a fastener stringer (10), the fastener stringer (10) being formed by joining a pair of fastener stringers (20) in which a fastener element (40) is provided at a bent side edge portion (35) formed by folding back one side edge portion of a fastener tape (30), and the removed portion (50) from which the fastener element (40) is removed being provided at each fastener stringer (20);

a grip portion (130) capable of gripping at least a pair of reinforcing films (60);

a first driving unit (140) that moves the grip unit (130) so as to dispose a first portion (61) of the reinforcing film (60) adjacent to the removal unit (50) and a second portion (62) of the reinforcing film (60) other than the first portion (61) between the fastener stringers (20);

a first crimping portion (170) that crimps a first portion (61) of the reinforcement film (60) and the removal portion (50);

a lateral pulling part (220) which pulls the zipper strip (10) to two sides of the chain width direction so as to flatten the bending side edge part (35); and

a second pressure-bonding section (230) that, in a state in which the folded side edge section (35) is flattened by the lateral pulling section (220) by laterally pulling the fastener stringer (10), causes the second section (62) of the reinforcing film (60) to be in pressure-bonding contact with a first tape surface (31) of the fastener tape (30) on which the fastener elements (40) are provided.

15. The manufacturing apparatus according to claim 14, further comprising:

a bending tool (160) that bends the reinforcing film (60) on the first portion (61) side.

16. The manufacturing apparatus according to claim 15, wherein:

the bending tool (160) has a partition wall portion (162) inserted between the at least one pair of reinforcing films (60) held at an interval by the grip portion (130).

17. The manufacturing apparatus according to claim 15 or 16, wherein:

the first pressure-bonding section (170) is configured such that at least a part of the first portion (61) is pressure-bonded to the removal section (50) by one or more pressing sections (175), the one or more pressing sections (175) are inserted into one or more holes (168) provided in the bending tool (160), and one pressing section (175) is inserted into one hole (168).

18. The manufacturing apparatus according to claim 14, wherein:

the opening forming portion (120) includes a pair of rod portions inserted between the removed portions (50) of the fastener stringers (20), and the interval between the pair of rod portions is increased in the chain width direction of the fastener stringer (10).

19. The manufacturing apparatus according to claim 14, further comprising:

and a first conveying table (110) that includes a first table piece (111) and a second table piece (112) that are arranged so as to have a gap extending in the conveying direction of the fastener stringer (10), and that conveys the fastener stringer (10) between the first table piece (111) and the second table piece (112) in a state in which the coupling element (40) and the removed portion (50) included in the fastener stringer (10) are exposed from the gap on the main surface of the first conveying table (110).

20. The manufacturing apparatus according to claim 19, wherein:

the first pressure-bonding section (170) pressure-bonds a first portion (61) of the reinforcing film (60) to the removal section (50) exposed on the main surface of the first conveying table (110).

21. The manufacturing apparatus according to claim 14, wherein:

the transverse pulling part (220) transversely pulls each part of the fastener stringer (20) in the pulled state of the fastener stringer (10) which is pulled by the first slider (281) and closed by the second slider (282).

22. The manufacturing apparatus according to claim 14 or 21, further comprising:

a second conveying table (210) which is provided with an intermediate guide (215) between a third table piece (213) and a fourth table piece (214) and conveys the fastener chain (10) in the following state: the element (40) of one fastener stringer (20) disposed on the third piece (213) is disposed between the intermediate guide (215) and the third piece (213), and the element (40) of the other fastener stringer (20) disposed on the fourth piece (214) is disposed between the intermediate guide (215) and the fourth piece (214).

23. The manufacturing apparatus according to claim 22, wherein:

the second pressure-bonding section (230) pressure-bonds the second portion (62) of the reinforcing film (60) to the first tape surface (31) of the fastener tape (30) on which the fastener elements (40) are provided, on the main surfaces of the third blade (213) and the fourth blade (214), respectively.

24. The manufacturing apparatus according to claim 22, further comprising:

a pushing tool (240) that pushes up the removing portion (50) located between the intermediate guide (215) and the third stage piece (213) and/or the removing portion (50) located between the intermediate guide (215) and the fourth stage piece (214).

25. A method for attaching a reinforcing film to a zipper chain, comprising: