TWI692324B - Zipper chain belt, zipper, manufacturing method and manufacturing device thereof - Google Patents

Abstract

The invention provides a zipper chain belt, a zipper, a manufacturing method and a manufacturing device thereof. In the method of cutting the fastener element in order to form the space portion, the removed portion of the fastener element may remain in the fastener chain. The fastener chain includes a fastener tape (10) and a fastener element (20). The zipper element (20) includes: a monofilament (23) a first region (21) extending spirally along the length of the zipper tape (10) and a zipper tape along the length of the zipper tape (10) The second area (22) provided within the range between the end (19) of (10) and the first area (21). In the second region (22), the plurality of first legs (31) and the plurality of second legs (32) included in the fastener element (20) are combined with the coupling part (40), which includes Monofilament (23) is the same resin material. The coupling portion (40) extends between the engaging head (33) included in the first area (21) and the end (19) of the fastener tape (10).

Description

Zipper chain belt, zipper, manufacturing method and manufacturing device thereof

The invention relates to a zipper chain belt, a zipper, a manufacturing method and a manufacturing device thereof.

Patent Document 1 discloses a device that forms a space portion with respect to a fastener chain (see FIGS. 9 and 10). Patent Document 2 discloses a method for forming a lower stopper by welding the tooth surfaces of the teeth using ultrasonic waves.

Prior Art Literature Patent Literature Patent Literature 1: Japanese Patent Publication No. 59-46164 Patent Literature 2: Japanese Patent Publication No. 56-28523

Problems to be solved by invention

In the method of cutting the fastener element in order to form the space portion, the removed portion of the fastener element may remain in the fastener chain. Solutions for solving problems

A fastener chain belt according to an aspect of the present invention includes: a fastener tape having a first belt surface and a second belt surface; The fastener element is provided on the side of the first belt surface of the fastener tape and on the side edge of the fastener tape, The zipper element includes: a first area in which the monofilament along the way such that the zipper element has a first leg, an engaging head, a second leg, and a reversing structure The length of the zipper tape extends in a spiral shape; and a second area is provided to a range between the end of the zipper tape and the first area along the length of the zipper tape, In the second area, the plurality of first legs and the plurality of second legs included in the fastener element are combined with a coupling portion, and the coupling portion contains the same resin material as the monofilament, The coupling portion extends between the engaging head included in the first area and the end of the zipper tape.

In some embodiments, the coupling portion has a cut surface extending between the engaging head included in the first area and the end of the fastener tape.

In some embodiments, the cut surface is located inside the fastener tape from the engaging head included in the first area.

In several embodiments, the cross-section of the monofilament can be visually recognized in the cut surface.

In several embodiments, the cut surface has a width in a direction orthogonal to the first belt surface and the second belt surface of the fastener tape and a length in the direction along the side edge portion of the fastener tape, in When the width of the cut surface is W and the length of the cut surface is L, 5<(L/W) is satisfied.

In several embodiments, the maximum width of the cut surface in the direction orthogonal to the first belt surface and the second belt surface of the zipper tape is smaller than that of the first belt surface and the second belt surface of the zipper tape The maximum width of the engaging head in the direction of intersection.

In several embodiments, the cut surface is adjacent to an area where two or more warp threads included in the zipper tape for fastening the zipper element to the first tape surface of the zipper tape are adjacent Location.

A slide fastener according to one aspect of the present invention includes: any one of the above-mentioned pair of fastener chains; and at least one slider for opening and closing the pair of fastener chains.

A method for manufacturing a zipper according to an aspect of the present invention includes the following steps: forming a portion of an engaging area engaged by an engaging head portion of a fastener element included in each fastener chain of a fastener chain to form The process of welding part extending along the longitudinal direction of the zipper chain; The step of forming a cutting line extending along the longitudinal direction of the zipper chain at the welded portion; The process of cutting the fastener chain along the width direction orthogonal to the longitudinal direction of the fastener chain so that the welding part may be cut.

In several embodiments, after the cutting line is formed to the welded portion, the zipper chain is cut.

In some embodiments, in order to form a cutting line in the welded portion, a knife is used, and the knife is moved to reach the welded portion through a slit between each fastener tape included in the fastener chain.

In several embodiments, the blade includes a first blade portion with a first blade point and a second blade portion with a second blade point, at least two inclined blade regions between the first blade point and the second blade point Extend between.

An apparatus for manufacturing a zipper according to an aspect of the present invention includes an ultrasonic welding device that uses ultrasonic welding for a portion of an engagement area engaged by an engagement head of a fastener element included in each fastener tape of a fastener chain Processing to form a welded portion extending along the length of the zipper chain; a first cutting device that forms a cutting line extending along the length of the zipper chain at the welded portion; a second cutting device that extends along the The zipper chain is cut in a width direction orthogonal to the longitudinal direction of the zipper chain in accordance with the cutting of the welded portion. Effect of invention

According to the method for manufacturing a slide fastener according to an aspect of the present invention, the possibility that the removed portion of the fastener element remains in the fastener chain can be suppressed.

Hereinafter, a non-limiting embodiment example of the present invention will be described while referring to FIGS. 1 to 18. The one or more disclosed embodiments and the features included in the embodiments are not independent. Those skilled in the art can combine embodiments and/or features without undue explanation. In addition, those skilled in the art can also understand the synergistic effect brought by the combination. In principle, repeated explanations between the embodiments are omitted. The description of the invention is the main purpose with reference to the drawings. For the convenience of drawing, there are cases where it is simplified.

In the following description, each feature described in relation to a certain fastener chain and/or its manufacturing method can be understood as a separate feature independent of other features in addition to being combined with other features. For individual features, combinations with other features are not necessary and can be understood as independent individual features, but can also be understood as combinations with more than one other individual feature. It is verbose for those skilled in the art to describe all combinations of individual features and is omitted. Individual features are not necessarily limited to this, and are expressed by expressions such as "some cases". The individual features are not only effective for, for example, the fastener chain and/or its manufacturing method illustrated in the drawings, but can be understood as a general feature commonly used in various other fastener chains and/or its manufacturing methods.

FIG. 1 is a schematic diagram of the upper surface of the zipper 80. FIG. 2 is a schematic diagram of the lower surface of the slide fastener 80, showing the first region 21 and the second region 22 of the fastener element 20. FIG. FIG. 3 is a schematic diagram of the second region 22 of the fastener element 20 of each fastener chain 50. The plurality of first legs 31 and the plurality of second legs 32 are coupled to the coupling portion 40. 4 is a schematic cross-sectional schematic view of the plane shown at IV-IV in FIG. 3. FIG. 5 is a schematic front view of the cut surface 49 of the joint 40. FIG. 6 is a schematic diagram showing a part R33 of the engaging area of the engaging head 33 of the fastener element 20 to be ultrasonically welded with a hatched area in oblique lines. FIG. 7 is a schematic diagram showing a line to be cut for cutting the welded part 140.

The front-rear direction can be understood as the moving direction of the slider 60 included in the zipper 80. The slider 60 advances to close a pair of fastener chains 50 included in the zipper 80. The slider 60 moves backward to open one of the pair of fastener chains 50 included in the zipper 80. When a pair of fastener chains 50 is closed, the fastener elements 20 included in each fastener chain 50 are engaged. When a pair of fastener stringers 50 is opened, the fastener element 20 contained in each fastener stringer 50 becomes non-engagement.

The pair of fastener chains 50 opened and closed by the slider 60 are arranged in the left-right direction orthogonal to the front-rear direction. Therefore, the pair of fastener chains 50 can also be referred to as a pair of left and right fastener chains 50. The left-right direction is an arbitrary direction orthogonal to the front-rear direction and parallel to the first belt surface 11 and the second belt surface 12 of the fastener tape 10 included in the fastener tape 50. The first tape surface 11 and the second tape surface 12 define the thickness of the fastener tape 10. The up-down direction is any direction orthogonal to the front-rear direction and the left-right direction. In the following, for detailed description, reference is made to defining the front-back direction, the left-right direction, and the up-down direction as described above. However, the front-rear direction, the left-right direction, and the up-down direction can also be redefined as described below.

The zipper 80 has a pair of left and right zipper chain belts 50 and sliders 60. Each fastener chain 50 has a fastener tape 10 and a fastener element 20. The slide fastener 80, the fastener stringer 50, the fastener tape 10, and the fastener element 20 each extend along the front-back direction, and are elongated in the front-back direction. The width W80 of the zipper 80 is equal to the total of the width W10 of the left fastener tape 10, the width W10 of the right fastener tape 10, and the width W89 of the slit 89 extending in the front-rear direction between the left and right fastener tapes 10. The zipper 80, the zipper chain tape 50, and the zipper tape 10 have the same length in the front-rear direction.

The zipper tape 10 is a flexible woven fabric or knitted fabric, or has a combination of a woven structure and a knitted structure. The fastener tape 10 has a first tape surface 11 and a second tape surface 12 that define the thickness of the fastener tape 10. The first belt surface 11 can be referred to as a belt lower surface, and the second belt surface 12 can be referred to as a belt upper surface with reference to the definition of the upper and lower directions as described above. The fastener element 20 is provided on the first belt surface 11 side of the fastener tape 10 and on the side edge portion 13 of the fastener tape 10. The side edge portion 13 of the fastener tape 10 provided with the fastener element 20 is one side edge portion of the fastener tape 10 extending along the longitudinal direction of the fastener tape 10. In the slide fastener 80, the side edge portions 13 of the fastener tape 10 of each fastener tape 50 are arranged adjacent to each other in the left-right direction. Similarly, in the slide fastener 80, the fastener elements 20 of each fastener tape 50 are arranged adjacent to each other in the left-right direction.

As an option, the zipper 80 also has a front stopper 71 for preventing the slider 60 from advancing, and/or a rear stopper 72 for preventing the slider 60 from retreating. The front stopper 71 and/or the rear stopper 72 are made of metal or resin. In some cases, the front stopper 71 has a main body portion arranged on the second belt surface 12 of the zipper tape 10 and a plurality of claws for positioning the zipper element 20 with respect to the first belt surface 11 of the zipper tape 10 Press tightly. The claw is plastically deformed after passing through the fastener tape 10. The rear stopper 72 is not limited to fix the left and right fastener elements 20, but can also be a rear stopper that can be separated left and right.

The slider 60 is made of metal or resin. The slider 60 has an upper wing plate, a lower wing plate, a connecting column connecting the upper wing plate and the lower wing plate, and a flange portion. The slider 60 has a rear port and a pair of left and right front ports positioned so as to interpose a connecting column extending in the vertical direction. As the slider 60 advances, the left zipper element 20 enters the slider 60 through the left front port, and the right zipper element 20 enters the slider 60 through the right front port. As the slider 60 advances, the zipper teeth 20 that have entered the slider 60 are engaged in the slider 60, and the mouth is exposed to the outside of the slider 60 after passing through the slider 60. In the same way, it is understood that the slider 60 is retracted and the engagement of the fastener element 20 is released, and the redundant description is omitted.

As shown in FIGS. 2 and 3, the fastener element 20 includes a first region 21 and a second region provided in a range between the end 19 of the fastener tape 10 and the first region 21 along the length of the fastener tape 10 Region 22. The first region 21 is a monofilament 23 along the longitudinal direction of the fastener tape 10 such that the fastener element 20 has the first leg 31, the engaging head 33, the second leg 32, and the reversing part 34 in an inverted structure Spiral extending area. On the other hand, as shown in FIG. 4, the second area 22 is an area where the plurality of first legs 31 and the plurality of second legs 32 included in the fastener element 20 are combined with the coupling portion 40, and the coupling portion 40 Contains the same resin material as the monofilament 23. The coupling portion 40 extends between the engaging head 33 included in the first area 21 and the end 19 of the fastener tape 10. The situation where the first leg portion 31 and/or the second leg portion 32 have exposed free ends is avoided or suppressed. When the first leg portion 31 and/or the second leg portion 32 have exposed free ends, for example, they may cause irritation to human skin or may become entangled with clothing fibers.

It is not necessarily limited to this, but the coupling portion 40 is formed by ultrasonic welding using a portion R33 (refer to FIG. 6) of a part of the engagement area engaged with the engagement head 33 of the fastener element 20 in the fastener chain 90 The welding part 140 (refer to FIG. 7) is obtained by cutting. In this case, when the space portion is formed in the fastener chain 90, the removed portion of the fastener element 20 remaining in the fastener chain 90 is avoided or suppressed. In addition, the engaging area in which the engaging head 33 is engaged is an area where the engaging head 33 is continuously provided in a zigzag shape along the longitudinal direction of the fastener chain 90. The zigzag arrangement of reference numeral 33 shown in FIG. 6 indicates the zigzag arrangement of the engaging head 33. It should be noted that the coupling portion 40 need not be formed when the space portion is formed for the zipper chain 90.

The monofilament 23 constituting the fastener element 20 contains a thermoplastic resin such as polyamide (PA), polyacetal (POM), polycarbonate (PC) and the like. In some cases, the cross-sectional shape of the monofilament 23 is circular or elliptical. The spiral structure of the monofilament 23 is constructed by, for example, spirally winding the monofilament 23 around the outer peripheral surface of the mandrel, but it is not necessarily limited to this.

The unit structure composed of the first leg portion 31, the engaging head portion 33, the second leg portion 32, and the reversing portion 34 is continuously provided along the front-rear direction, and the spiral structure of the monofilament 23 is constructed. The first leg portion 31 and the second leg portion 32 each extend in the left-right direction. The second leg portion 32 is in contact with the first belt surface 11 of the fastener tape 10. The first leg portion 31 is provided at a distance from the first tape surface 11 of the fastener tape 10. The engaging head 33 extends so as to connect the first leg 31 and the second leg 32. The turning part 34 is provided inside the fastener tape compared with the engaging head 33. The width of the engaging head 33 in the front-rear direction is larger than the width of the first leg 31 and the second leg 32 in the front-rear direction. Thereby, the engaging head 33 of the left fastener element 20 and the engaging head 33 of the right fastener element 20 are allowed to engage.

In the case where the bonding portion 40 is obtained by cutting off the welding portion 140 (see FIG. 7) formed by the ultrasonic welding process performed on a portion R33 (see FIG. 6) of the engagement area where the engaging head 33 is engaged, Next, it can be assumed that the coupling portion 40 included in one of the pair of left and right zipper chain belts 50 includes the engaging head of the zipper teeth 20 derived from the other of the pair of left and right zipper chain belts 50 33 resin section.

Specifically, the front and rear adjacent first legs 31 of the left fastener element 20 are joined in the front-rear direction by a resin portion containing a resin material derived from a certain engaging head 33 of the right fastener element 20 . The first leg portions 31 adjacent to each other belong to different unit structures adjacent to each other. The second leg portion 32 adjacent to the front and rear of the left fastener element 20 is joined in the front-rear direction by a resin portion containing a resin material derived from a certain engaging head 33 of the right fastener element 20. The second leg portions 32 adjacent to each other belong to different unit structures adjacent to each other. The first leg portion 31 and the second leg portion 32 of the same unit structure in the zipper fastener element 20 on the left side are formed by a resin portion containing a resin material derived from a certain engaging head 33 of the zipper fastener element 20 on the right side Directionally combined. The coupling portion 40 can be a resin portion containing a resin material derived from the engaging head 33, but it should be noted that the first leg portion 31 and/or the second leg portion 32 can be contained instead or in addition. Of resin material.

The welding portion 140 (refer to FIG. 7) formed by performing ultrasonic welding on a portion R33 (refer to FIG. 6) of the engagement area engaged with the engagement head 33 is cut along the planned cutting line When the coupling portion 40 is obtained, the coupling portion 40 has a cut surface 49 extending between the engaging head 33 included in the first area 21 and the end 19 of the fastener tape 10. In addition, the monofilament 23 or the welding portion 140 can be pressed between the anvil 122 and the horn 123 (see FIG. 9 ). It is assumed that the thickness of the welding portion 140 in the vertical direction becomes thin.

In some cases, the maximum width W49 of the cut surface 49 in the direction orthogonal to the first tape surface 11 and the second tape surface 12 of the zipper tape 10 is smaller than the first tape surface 11 and the second tape of the zipper tape 10 The maximum width W33 of the engaging head 33 in the direction orthogonal to the surface 12 (that is, the vertical direction) (see FIG. 5 ). Additionally or alternatively, 5<L/W is satisfied, where W represents the width W49 of the cut surface 49, and L represents the length L49 of the cut surface 49. In addition, the cut surface 49 has a width W49 in the direction orthogonal to the first tape surface 11 and the second tape surface 12 of the fastener tape 10 and a length L49 in the direction along the side edge portion 13 of the fastener tape 10. It is also assumed that the cross section of the monofilament 23 can be visually recognized in the cut surface 49 (refer to FIG. 5). The shape and size of the cross-section of the monofilament 23 that can be visually recognized in the cut surface 49 vary depending on the cutting position, the cutting angle, the degree of thermal deformation of the monofilament 23, and the like.

The cut surface 49 extends along the side edge portion 13 of the fastener tape 10 and/or between the engagement head 33 included in the first region 21 and the end 19 of the fastener tape 10. The cut surface 49 need not be a surface parallel to the front-rear direction, but may be a surface inclined to the left or right as it extends in the front-rear direction. It is not necessarily limited to this, and the cut surface 49 is located inside the fastener tape from the engaging head 33 included in the first region 21. It can also be understood that the cut surface 49 is located closer to the side edge portion 13 of the fastener tape 10 than the engaging head 33 included in the first region 21. In addition, the inner side of the fastener tape is a direction of the first tape surface 11 or the second tape surface 12 from a position outside the tape surface toward a position inside the tape surface. For example, the inside of the fastener tape is directed from the position outside the first tape surface 11 to the position inside the first tape surface 11 through the side edge portion 13 of the fastener tape 10. The cut surface 49 may be a flat surface or a non-flat surface.

Can meet more than one of the following conditions. The arrangement pitch of the first leg portions 31 in the first area 21 is equal to the arrangement pitch of the first leg portions 31 in the second area 22. The arrangement pitch of the second leg portions 32 in the first area 21 is equal to the arrangement pitch of the second leg portions 32 in the second area 22. The arrangement pitch of the inverting parts 34 in the first region 21 is equal to the arrangement pitch of the inverting parts 34 in the second region 22. The number of first legs 31 included in the first region 21 is greater than the number of first legs 31 included in the second region 22. The number of second legs 32 included in the first region 21 is greater than the number of second legs 32 included in the second region 22. The number of inverting parts 34 included in the first region 21 is greater than the number of inverting parts 34 included in the second region 22. The number of first legs 31 included in the second region 22 is two or more and 50 or less. The number of the second leg portions 32 included in the second area 22 is two or more and 50 or less. The number of inverting parts 34 included in the second region 22 is two or more and 50 or less.

In some cases, one or more engagement heads 33 are arranged between the front stopper 71 and the coupling portion 40. Ensure a stronger bond between the front stopper 71 and the zipper fastener 20. In addition, it is also assumed that the front stopper 71 is provided for the second region 22.

It is not limited to this, and the fastener element 20 is fastened with respect to the 1st tape surface 11 of the fastener tape 10 by the warp 15 of the fastener tape 10. In some cases, the cut surface 49 is adjacent to an area where two or more warp threads 15 included in the zipper tape 10 used to fasten the fastener element 20 to the first tape surface 11 of the zipper tape 10 are adjacent Positioning. In FIG. 3, the warp 15 is drawn so as to extend in the front-rear direction on the first leg 31 of the fastener element 20. Actually, each warp thread 15 repeatedly extends after crossing two or more first leg portions 31 and crossing one or more weft threads on the second belt surface 12 side. The number of warps 15 is more than two.

8 to 13 are process diagrams showing a method of manufacturing the slide fastener 80. FIG. 14 is a schematic diagram of the knife 128 for cutting the welding part 140. FIG. 15 is a schematic diagram showing the cut line SL140 formed in the welded part 140. FIG. 16 is a schematic diagram showing a line to be cut related to cutting the fastener chain 90 in accordance with the cutting of the welded part 140. Fig. 17 is a schematic diagram showing the zipper chain after the cutting part. Fig. 18 is a schematic diagram showing the zipper chain after being cut in another way.

In order to manufacture the zipper 80, the zipper chain 90 shown in FIG. 8 is used. The zipper chain 90 is formed by combining a pair of zipper chain belts 50. In order to insert a pair of zipper teeth 20 included in the zipper chain 90 into the slider 60, the zipper chain 90 is provided with a space portion formed by partially removing the zipper teeth 20 in the length direction of the zipper chain 90 of. At the space portion, the fastener chain 90 is cut, and a pair of fastener elements 20 included in the fastener chain 90 is inserted into the slider 60. The space is formed in the fastener chain 90 at a constant interval while conveying the fastener chain 90 to the downstream side. In order to convey the zipper chain 90, a pair of rollers can be used which sandwich the zipper chain 90 therebetween. In the conveying direction of the zipper chain 90, the zipper chain 90 is cut at a space portion on the upstream side of one of the space portions at the most downstream position. The zipper 80 is obtained from the zipper chain 90 in this way.

When the space portion is formed in the zipper chain 90, as shown in FIG. 9, the engaging area engaged with the engaging head 33 of the zipper element 20 included in each zipper tape 50 of the zipper chain 90 is performed Ultrasonic welding process of a part of R33 (refer to FIG. 6). As a result, as shown in FIG. 10, the welded part 140 extending along the longitudinal direction of the fastener chain 90 is formed in the fastener chain 90 (see FIG. 7 ).

The ultrasonic welding device 121 is used during the ultrasonic welding process. The ultrasonic welding device 121 includes an anvil 122 and a horn 123. The horn 123 transmits vibration energy to a part R33 of the engaging region where the engaging head 33 is engaged. As a result, the engaging head portion 33, the first leg portion 31, or the second leg portion 32 existing in a portion R33 of the engaging area are melted, and then fixed to each other to form a welded portion 140 (see FIG. 7). In some cases, the welding part 140 has a recess 147 corresponding to the contact of the horn 123.

Next, as shown in FIGS. 11 to 13, a process of forming a cut line SL140 extending in the longitudinal direction of the fastener chain 90 at the welded part 140 is performed. The first cutting device 126 that forms the cutting line SL140 extending along the longitudinal direction of the fastener chain 90 at the welded portion 140 is used. The first cutting device 126 includes a knife guide 127 and a knife 128 guided by the knife guide 127. As an option, the first cutting device 126 also has a chain guide 113 that guides the moving zipper chain 90.

The knife guide 127 and the knife 128 are lowered together. After the knife guide 127 contacts the zipper tape 10, the knife 128 is further lowered. In some cases, the knife 128 reaches the welded portion 140 via a slit 89 that extends along the length of the zipper chain 90 between the pair of zipper tapes 10. In other words, the knife 128 moves so as to reach the welded portion 140 via the slit 89 between each fastener tape 10 included in the fastener chain 90. The change of the cutting position of the welding part 140 is avoided or suppressed.

The knife 128 is a thin plate. The knife 128 has a width W128 orthogonal to the transport direction of the zipper chain 90 and a length L128 along the transport direction of the zipper chain 90. The knife guide 127 is provided with a passage matching the shape of such a knife 128. The knife guide 127 restricts the displacement of the knife 128 in a direction orthogonal to the conveying direction of the zipper chain 90, and additionally or alternatively restricts the displacement of the knife 128 along the conveying direction of the zipper chain 90 . A cut line SL140 (see FIG. 15) is formed in the welded part 140 cut by the knife 128. The cutting line SL140 completely or partially cuts the welding part 140. The cutting line SL140 can pass through the slit of the welding part 140.

In some cases, the knife 128 includes a first blade portion 131 having a first blade tip 133 and a second blade portion 132 having a second blade tip 134, and at least two inclined blade regions 135, 136 are located at the first blade tip 133 and The second blade tip 134 extends between. When the knife 128 reaches the welding portion 140, the welding portion 140 is pressed in the opposite direction by the first blade portion 131 and the second blade portion 132, thus suppressing undesirable or unacceptable displacement of the welding portion 140. The angle formed by the inclined blade regions 135 and 136 can be 30° or more and 120° or less. The first blade portion 131 and the second blade portion 132 are arranged in the transport direction of the fastener chain 90. Similarly, the first blade edge 133, the first inclined blade area 135, the second inclined blade area 136, and the second blade edge 134 are arranged in the transport direction of the fastener chain 90.

Next, as shown in FIG. 16, along the width direction orthogonal to the longitudinal direction of the fastener chain 90, the fastener chain 90 is cut along with the cutting of the welded portion 140. A second cutting device (not shown) is used to cut the zipper chain 90 along the width direction orthogonal to the longitudinal direction of the zipper chain 90 so as to be cut by the welded portion 140. The fastener chain 90 is cut along the cutting line CL19 of FIG. 16, for example. At this time, the welding part 140 is also cut. As shown in FIG. 17 and FIG. 18, the end 19 of the zipper chain 90 can take an arbitrary line shape such as a straight line or a saw tooth according to the cutting line CL19. It is not necessarily limited to this, but after the cutting line SL140 is formed to the welding part 140, the fastener chain 90 is cut.

The fastener element 20 of the fastener chain 90 shown in FIG. 17 then passes through the slider 60 held to the holder. It is not necessarily limited to this, and for its purpose, a jig for holding each fastener chain 50 of the fastener chain 90 is used. The formation of the space portion, the cutting of the zipper chain 90 and the passing of the zipper chain teeth 20 through the slider 60 are repeated to manufacture a plurality of zipper 80 from one zipper chain 90. The front stopper 71 and the rear stopper 72 are attached to the slide fastener 80 after the process of passing the slide fastener element 20 through the slider 60.

According to the above teachings, as long as those skilled in the art can apply various changes to the embodiments. The reference signs added to the scope of patent application are for reference, and are not to be referred to for the purpose of limiting the interpretation of the scope of patent application.

10 Zipper tape 11 In the first zone 12 Second face 13 Side edge 15 Warp 19 At the end 20 Zipper fasteners 21 Area 1 22 Area 2 23 Monofilament 31 The first leg 32 Leg 2 33 Snap-in head 34 Turnover Department 40 Joint Department 49 Cutaway 50 Zipper chain belt 60 Slider 71 Front stop 72 Backstop 80 Zipper 89 slit 90 Zipper chain 113 Chain guide 121 Ultrasonic welding device 122 Anvil 123 horn 126 No. 1 cutting device 127 Knife guide 128 knives 131 Part 1

132: Part 2

133: 1st tip

134: 2nd tip

135: 1st inclined blade area

136: 2nd inclined blade area

140: Welding Department

147: recess

CL19: cutting line

L41: Cut off the scheduled line

L49: Length

L128: length

R33: part of the snap-in area

SL140: cutting line

W10: width

W33: maximum width

W49: width/maximum width

W80: width

W89: Width

W128: width

FIG. 1 is a schematic diagram of the upper surface of a zipper according to an embodiment of the present invention. FIG. 2 is a schematic diagram of the lower surface of a slide fastener according to an aspect of the present invention, showing a first area and a second area of a fastener element. FIG. 3 is a schematic view of the second area of the fastener element of each fastener chain. 4 is a schematic cross-sectional schematic view of the plane shown at IV-IV in FIG. 3. Fig. 5 is a schematic front view of the cut surface of the joint. FIG. 6 is a schematic diagram showing a part of the engaging area of the engaging head of the fastener element to be ultrasonically welded by the hatched area with diagonal lines. 7 is a schematic diagram showing a line to be cut for cutting the welded portion. 8 is a process diagram showing a method of manufacturing a slide fastener according to an embodiment of the present invention, and schematically shows a slide fastener chain. 9 is a process diagram showing a method for manufacturing a slide fastener according to an embodiment of the present invention, and schematically shows a slide fastener chain to be ultrasonically welded. 10 is a process diagram showing a method for manufacturing a slide fastener according to an embodiment of the present invention, and schematically shows a slide fastener chain after ultrasonic welding. 11 is a process diagram showing a method of manufacturing a slide fastener according to an embodiment of the present invention, and schematically shows a cutting device for cutting a welded portion formed on a slide fastener chain. 12 is a process diagram showing a method of manufacturing a slide fastener according to an embodiment of the present invention, and schematically shows a state where a welded portion formed in a slide fastener chain is cut. 13 is a process diagram showing a method of manufacturing a slide fastener according to an embodiment of the present invention, and schematically shows a state after the cutting device is separated from the fastener chain. Fig. 14 is a schematic diagram of a knife for cutting a welded part. Fig. 15 is a schematic diagram showing slits formed in the welded portion. 16 is a schematic diagram showing a line to be cut related to cutting a fastener chain in accordance with cutting of a welded portion. Fig. 17 is a schematic diagram showing the zipper chain after the cutting part. Fig. 18 is a schematic diagram showing the zipper chain after being cut in another way.

DESCRIPTION OF REFERENCE NUMERALS 10, fastener tape; 11, first belt surface; 12, second belt surface; 13, side edge portion; 15, warp thread; 19, end; 20, fastener element; 21, first area; 22. The second area; 23. Monofilament; 31. The first leg; 32. The second leg; 33. The engaging head; 34. The turning part; 40. The joint part; 49. The cut surface; 50. Zipper chain belt; 60, slide; 71, front stop; 72, rear stop; 80, zipper; 90, zipper chain; 121, ultrasonic welding device; 122, anvil; 123, horn; 126, 1st Cutting device; 140, welding part.

11 In the first zone 13 Side edge 15 Warp 31 The first leg 32 Leg 2 33 Snap-in head 34 Turnover Department 40 Joint Department 49 Cutaway 71 Front stop L49 Length

Claims (13)

A zipper chain belt with: A zipper tape (10) having a first tape surface (11) and a second tape surface (12); and A fastener element (20) is provided on the first belt surface (11) side of the fastener tape (10), and is provided on a side edge portion (13) of the fastener tape (10), The fastener element (20) includes: a first area (21), and in the first area (21), the monofilament (23) has a first leg portion (31) with the fastener element (20) and engages The manner in which the head (33), the second leg (32), and the reversing portion (34) are repeated in a spiral shape along the length of the zipper tape (10); and the second area (22), which is provided To the range between the end (19) of the zipper tape (10) and the first area (21) along the length of the zipper tape (10), In the second region (22), the plurality of first legs (31) and the plurality of second legs (32) included in the fastener element (20) are combined with a coupling part (40), and the coupling part (40) contains the same resin material as the monofilament (23), The coupling portion (40) extends between the engaging head (33) included in the first area (21) and the end (19) of the zipper tape (10). As in the zipper chain belt of claim 1, wherein, The coupling portion (40) has a cut surface (49) extending between the engaging head (33) included in the first area (21) and the end (19) of the fastener tape (10). As in the zipper chain of claim 2, where, The cut surface (49) is located inside the fastener tape (10) from the engaging head (33) included in the first region (21). As in the zipper chain of claim 2, where, The cross section of the monofilament (23) can be visually recognized in the cut surface (49). As in the zipper chain of claim 2, where, The cut surface (49) has a width (W49) in a direction orthogonal to the first tape surface (11) and the second tape surface (12) of the zipper tape (10) and along the zipper tape (10) The length (L49) in the direction of the side edge portion (13), When the width of the cut surface (49) is W and the length of the cut surface (49) is L, 5<(L/W) is satisfied. As in the zipper chain of claim 2, where, The maximum width (W49) of the cut surface (49) in the direction orthogonal to the first tape surface (11) and the second tape surface (12) of the zipper tape (10) is smaller than that of the zipper tape (10) The maximum width (W33) of the engaging head (33) in the direction perpendicular to the first belt surface (11) and the second belt surface (12). Zipper chain belt according to any one of claims 2 to 6, wherein, The cut surface (49) and the two or more included in the fastener tape (10) for fastening the fastener element (20) on the first belt surface (11) of the fastener tape (10) The regions where the meridians (15) are arranged are located adjacently. A zipper with: A pair of zipper chain belts (50) as in any one of claims 1 to 6; At least one slider (60) for opening and closing the pair of fastener chains (50). A method for manufacturing a zipper, which includes the following steps: Using ultrasonic welding treatment for a part (R33) of the engaging area (R33) engaged by the engaging head (33) of the fastener element (20) included in each fastener tape (50) of the fastener chain (90), The process of forming a welded portion (140) extending along the length of the zipper chain (90); The step of forming a cutting line (SL140) extending along the longitudinal direction of the zipper chain (90) at the welded portion (140); and The process of cutting the fastener chain (90) along the width direction orthogonal to the longitudinal direction of the fastener chain (90) in such a manner as to cut the welding portion (140). The method for manufacturing a zipper according to claim 9, wherein, After the cutting line (SL140) is formed to the welded portion (140), the zipper chain (90) is cut. The method for manufacturing a zipper according to claim 9, wherein, In order to form a cutting line (SL140) at the welded portion (140), a knife (128) is used to pass the slit (10) between the zipper tapes (10) included in the zipper chain (90) 89) Move to the welding part (140). The method for manufacturing a zipper according to claim 11, wherein, The blade (128) includes a first blade portion (131) having a first blade edge (133) and a second blade portion (132) having a second blade edge (134), and at least two inclined blade areas (135, 136) ) Extends between the first tool tip (133) and the second tool tip (134). A manufacturing device for zipper, which includes: Ultrasonic welding device (121), which utilizes a part of the engaging area (33) engaged by the engaging head (33) of the fastener element (20) included in each fastener chain (50) of the fastener chain (90) R33) performing ultrasonic welding to form a welding portion (140) extending along the length of the zipper chain (90); A first cutting device (121), which forms a cutting line (SL140) extending along the length of the zipper chain (90) at the welded portion (140); and The second cutting device cuts the zipper chain (90) along the width direction orthogonal to the longitudinal direction of the zipper chain (90) in such a manner as to cut the welded portion (140).

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