TWI603691B - Chain and zipper - Google Patents

Description

Chain and zipper

The present invention relates to a chain belt and a zipper, and more particularly to a chain belt and a zipper which are attached to a side of a cloth such as a garment and which are branched into two sheets in a front-back manner.

The zipper tape includes: a zipper tape extending in a length direction; and a zipper chain attached to the width direction of the zipper tape along the length direction (the direction perpendicular to the length direction and parallel to the front and back sides of the zipper tape) ) the end of one side. The chain belt is attached to a portion such as a garment on the side opposite to the fastener element in the width direction of the fastener tape, by sewing or the like. In the U.S. Patent No. 2,368,911, it is disclosed that a portion of the zipper tape which is opposite to one end side (the cloth attachment side) of the fastener element in the width direction is branched into a front-back two-piece chain. In the chain belt, an adhesive is contained on the surface of the front and back sheets which are opposed to each other, and the cloth is attached to the fabric by an adhesive while sandwiching the cloth between the sheets of the front and back branches. Further, the fabric can be attached between the sheets which are branched into the front and back, and sewn by sewing. Thereby, it is possible to improve the feeling of the fabric such as clothes and the chain belt. However, it is difficult to turn over the front side branch sheet (or the back side side branch sheet) with respect to the back side side branch sheet (or the front side side branch sheet) in order to sandwich the cloth between the front and back branch sheets. open. In addition, the sewing is usually performed by the operator on the front side of the fastener tape. Therefore, the front side branch sheet is surely sewn to the fabric. However, the back side branch sheet may not be smoothly sewn to the fabric. The sewing error as described above is particularly likely to occur when the cloth is sewn to the width-direction cloth mounting side end of the zipper tape, and the back side branch sheet protrudes in the thickness direction of the cloth according to the thickness of the cloth. The width side of the back side branch sheet is attached to the side of the cloth The position in the width direction is offset from the width direction of the cloth mounting side end in the width direction of the front side branch sheet toward the fastener element side.

Further, the fastener tape is formed by weaving a warp yarn along the longitudinal direction and a weft yarn along the width direction, and the size of the woven fabric in the width direction is smaller than the narrow width in the longitudinal direction. As a woven structure, one warp yarn is arranged in the width direction with respect to a plurality of warp yarns arranged in the width direction, and is folded back on one end side (sprocket mounting side) of the fastener tape, and a yarn loop is formed on the other end side. Fold back and repeat the action to woven. In the yarn loop, the yarn loops are continuous in a chain shape in the longitudinal direction while passing one of the yarn loops adjacent to each other in the longitudinal direction. Therefore, the thickness of the other end side of the yarn loop is increased, and when the normal zipper tape is used to be attached to the cloth as described above, it is easy to produce between the chain which is branched into the front and the back and the cloth. Step difference.

Prior technical literature Patent literature

Patent Document 1: US Patent No. 2368911

SUMMARY OF THE INVENTION An object of the present invention is to provide a fastener tape and a zipper in which a cloth-mounted side of a zipper tape is branched into a front-back two-piece sheet portion, which is easily opened when the cloth is sandwiched, and which is less likely to cause sewing errors.

In order to solve the above problems, according to the present invention, there is provided a fastener tape comprising: a zipper tape, and a fastener element attached to one side of a width direction of a fastener tape in a longitudinal direction, the zipper The other side of the tape which is opposite to the one side in the width direction includes a branch portion which is branched into a front side sheet portion and a back side sheet portion, and the above-mentioned back side or front side sheet portion The end of one side is opposite to the end of the other side of the front side or back side sheet portion opposite to the sheet portion in the width direction Offset.

In the chain belt of the present invention, the end portion of the front side sheet portion in the width direction (the side opposite to the side on which the fastener element is attached) and the back side sheet portion are formed by the branch portion of the fastener tape. The other end of the width direction is shifted in the width direction, and the length in the width direction of the front side sheet portion and the back side sheet portion is branched into the front side sheet portion from the beginning in the width direction. The length from the point (starting point of the branch) to the end of the other side is different. When the operator visually sews the front side of the fastener tape, it is preferable that the length of the back side sheet portion in the width direction is longer than that of the front side sheet. In this case, when the cloth such as clothes or bags is inserted between the front side and the back side sheet portion and sewn, even if the back side sheet portion protrudes in the thickness direction of the cloth (see FIGS. 4 and 5), the back surface can be prevented. The width direction direction of the fabric attachment side end of the side sheet portion is shifted toward the fastener element side from the width direction of the fabric attachment side end in the width direction of the front side sheet portion. When the operator visually locks the back side of the fastener tape, it is preferable that the length of the front side sheet portion in the width direction is longer than that of the back side sheet.

In one embodiment of the present invention, the fastener tape is woven by a warp yarn along a longitudinal direction and a weft yarn along a width direction, and the weft yarn is attached to each of the front side sheet portion and the back side sheet portion. The other end of the width direction is folded back, and the end of the one side in the width direction is formed in a chain-like continuous yarn loop in the longitudinal direction and folded back. In this case, the fastener element is attached to the side of the zipper tape forming the yarn loop. Further, by forming the weft yarn in the branch portion into the front side sheet portion and the back side sheet portion, the weft yarn can be made in each of the front side and the back side sheet portion as compared with the portion other than the branch portion of the fastener tape. The amount is reduced by half, and the thickness of each of the front side sheet portions is made thin. In this case, when the fabric is interposed between the front side and the back side sheet portion, the step difference between the front side and the back side sheet portion and the cloth is small.

In one embodiment of the present invention, in the branch portion shifted in the width direction, the difference in the width direction is 0.3 mm to 3.0 mm. The difference can be installed according to It is set such as the thickness of clothes such as clothes and bags between the front side and the back side sheet.

According to another aspect of the present invention, a fastener tape comprising: a zipper tape, and a fastener element attached to one side of a width direction of a fastener tape in a longitudinal direction, the zipper tape The other side opposite to the one side in the width direction includes a branch portion branched into a front side sheet portion and a back side sheet portion, and the other side of the back side or front side sheet portion The end is offset at least in part in the width direction with respect to the other end of the front side or the back side sheet portion opposite to the sheet portion. The chain belt includes a side in which the other side of the front side sheet portion and the back side sheet portion do not coincide with each other in the longitudinal direction, and includes a front side sheet portion and a back side sheet portion. The end of one side is partially offset in the longitudinal direction. In this case, when the fabric is interposed between the front side sheet portion and the back side sheet portion, the front side sheet portion (or the back side sheet portion) is also easily attached to the back side sheet portion (or the front side sheet). Turned over.

According to still another aspect of the present invention, a slide fastener comprising: left and right fastener tapes, and left and right fastener elements attached to one side of each of the zipper tapes in the width direction perpendicular to the longitudinal direction, And a slider for engaging and disengaging the left and right fastener elements, wherein each of the fastener tapes is branched on the other side opposite to the one side in the width direction, and is branched into a front side sheet portion and a back side sheet portion. In the branch portions of the two strands, the other end of the back side or the front side sheet portion is offset in the width direction with respect to the other end of the front side or the back side sheet portion. The above zipper uses the above-described chain belt of the present invention.

In one embodiment of the present invention, the fastener tape is woven by a warp yarn along a longitudinal direction and a weft yarn along a width direction, and the weft yarn is attached to each of the front side sheet portion and the back side sheet portion. The other end of the width direction is folded back, and the end of the one side in the width direction is formed in a chain-like continuous yarn loop in the longitudinal direction and folded back. In this case, the fastener element is attached to the side of the zipper tape forming the yarn loop. Also borrow By making the weft yarns into the front side sheet portion and the back side sheet portion in the branch portion, the weft amount can be halved in each of the front side and the back side sheet portions as compared with the portion other than the branch portion of the fastener tape. The thickness of each of the front side sheet portions is made thinner. In this case, when the fabric is interposed between the front side and the back side sheet portion, the step difference between the front side and the back side sheet portion and the cloth is small.

In one embodiment of the present invention, the weft yarns constituting the fastener element attaching portion of the fastener tape are separated from the starting point of the zipper tape into a front side sheet portion and a back side sheet portion, and the branch starting point The portion through which the first flap and the second flap of the slider in the width direction of the tape pass is located on the other side. By thus causing the branch starting point to be located on the other side of the portion where the first flap and the second flap of the slider are passed, the branch portion is not worn when the slider moves. Thereby, the life of the zipper tape becomes longer. Further, when a cloth is placed between the front side sheet portion and the back side sheet portion, the position at which the cloth enters can be determined, and excessive entry beyond the branch starting point can be prevented. If it enters excessively, the slider interferes with the slider when the slider moves, and the fastener tape is damaged or caught between the first flap and the second flap, and it is difficult to perform the operation of moving the slider.

According to an embodiment of the present invention, a fastener tape comprising a fastener tape and a fastener element attached to one side of a width direction of the fastener tape in a longitudinal direction along the longitudinal direction may be provided. The other side of the zipper tape which is opposite to the one side in the width direction includes a branch portion which is branched into a front side sheet portion and a back side sheet portion, and the zipper tape is used along the length direction. The warp yarn is woven by the weft yarn in the width direction, and the weft yarn is folded back at the other end of the width direction of each of the front side sheet portion and the back side sheet portion, and is on the side in the width direction The end is formed in a chain-like continuous yarn loop in the longitudinal direction and folded back.

In the present embodiment, the fastener tape is woven by a warp yarn along a longitudinal direction and a weft yarn along a width direction, and the weft yarn is attached to a width direction of each of the front side sheet portion and the back side sheet portion. The other side of the above side is folded back and in the width direction The end of the one side is formed by a yarn loop which is continuous in the longitudinal direction and is folded back. Therefore, the thickness of the opposite side of the other end of the fastener tape is formed to be thinner than the thickness of the end of the one side of the fastener tape.

In one embodiment of the present invention, the weft yarn is integrally formed by combining two yarns on the one side in the width direction of the fastener tape, and the starting points of the two yarn-shaped self-zip tapes are one by one. The front side sheet portion and the back side sheet portion are separated. In this case, the two yarn-forming yarns forming the weft yarn are divided into the front side sheet portion and the back side sheet portion, respectively, in the branch portion, and can be on the front side as compared with the portion other than the branch portion of the fastener tape. In each of the back side sheet portions, the amount of weft yarn is reduced by half, and the thickness of each of the front and back side sheet portions is made thin. Therefore, when the fabric is interposed between the front side and the back side sheet portion, the step difference between the front side and the back side sheet portion and the cloth is small. Further, since the portion other than the branch portion of the fastener tape (the element attaching portion) is thick, the mounting state of the fastener element is stable, and the mounting strength of the fastener element is easily maintained.

In another embodiment of the present invention, a zipper including a left and right zipper tape and a left and right zipper chain attached to one side of each of the zipper tapes in the width direction perpendicular to the longitudinal direction may be provided. a tooth, and a slider for opening and closing the left and right fastener elements, wherein each of the fastener tapes is branched on the other side opposite to the one side in the width direction, and is branched into a front side sheet portion and a back side sheet. In the two branch portions of the material portion, the zipper tape is woven by a warp yarn along a longitudinal direction and a weft yarn along a width direction, and the weft yarn is attached to each of the front side sheet portion and the back side sheet portion. The other end of the width direction is folded back, and the end of the one side in the width direction is formed in a chain-like continuous yarn loop in the longitudinal direction and folded back. The above zipper uses the above-described chain belt of the present invention.

In one embodiment of the present invention, the weft yarn is integrally formed by combining two yarns on the one side in the width direction of the fastener tape, and the starting points of the two yarn-shaped self-zip tapes are one by one. The front side sheet portion and the back side sheet portion are separated. In this case, The two yarn-forming yarns forming the weft yarn are divided into the front side sheet portion and the back side sheet portion, respectively, and the front side and the back side sheet are provided in comparison with the portions other than the branch portion of the fastener tape. In each of the sections, the amount of weft yarn is reduced by half, and the thickness of each of the front and back side sheet portions is made thin. Therefore, when the fabric is interposed between the front side and the back side sheet portion, the step difference between the front side and the back side sheet portion and the cloth is small.

In one embodiment of the present invention, the fastener tape includes a fastener attaching portion to which a fastener element is attached, and the branching portion is branched from the branch starting point to a front side sheet from the branch tooth mounting portion toward the other end. The end portion and the back side sheet portion are attached to the sprocket mounting portion side at the end portion in the longitudinal direction of the fastener element row. The stop includes an upper stop, a lower stop, a detachable insert, and the like.

In the present invention, the ends of the side portions of the front side sheet portion and the back side sheet portion which are opposite to the side on which the fastener element is attached in the width direction are shifted in the width direction by the branch portion of the fastener tape. The front side and the back side sheet portion have different lengths in the width direction. Therefore, when the fabric is interposed between the front side sheet portion and the back side sheet portion, the front side sheet portion (or the back side sheet portion) is easily attached to the back side sheet portion (or the front side sheet portion). Open it. In addition, when the fabric such as clothes is inserted between the front side and the back side sheet portion and sewn, even if the back side sheet portion or the front side sheet protrudes in the thickness direction of the cloth, the back side sheet portion or the front side can be prevented. The position of the width direction of the side sheet portion in the width direction of the fabric attachment side end is shifted toward the side of the fastener element side in the width direction of the width direction of the front side sheet portion or the back side sheet portion. Therefore, sewing errors are less likely to occur.

1‧‧‧ cloth

2‧‧‧ line

10, 60, 70, 80 ‧ ‧ chain belt

11, 61, 71, 81‧‧‧ zipper tape

11a‧‧‧ warp yarn

11b‧‧‧ Weft

11ba‧‧‧ yarn shape

11c‧‧‧ yarn loop

11d‧‧‧core

11e‧‧‧Installation of yarn

12, 62, 72, 82‧‧‧ sprocket mounting

13, 63, 73, 83, 93‧ ‧ branch

13a, 63a, 73a, 83a, 93a‧‧‧ front side sheet

13b, 63b, 73b, 83b, 93b‧‧‧ Back side sheet

14‧‧‧Intermediate

15, 65, 75, 85‧‧ ‧ branch starting point

20, 90‧‧‧ zipper teeth

21‧‧‧Meshing head

22‧‧‧上上

23‧‧‧Reversal Department

24‧‧‧foot

30‧‧‧Sliding parts

30a‧‧‧Slider body

31‧‧‧1st wing

32‧‧‧2nd wing

33‧‧‧Caps

34‧‧‧ pull-up

40‧‧‧Upstop

42‧‧‧Upper stop member

50‧‧‧ separable inserts

51‧‧‧ pins

52‧‧‧Opening cylinder

53‧‧‧Latch

83c‧‧‧ arc

83d‧‧‧1st place

83e‧‧‧2nd place

93aa‧‧‧1st place

93ab‧‧‧2nd place

93ba‧‧‧1st place

93bb‧‧‧2nd place

100, 101‧‧ ‧ zipper

B‧‧‧ size

L‧‧‧ size

S‧‧‧ size

Fig. 1 is a plan explanatory view showing a zipper of a fastener tape according to an embodiment of the present invention which is broken in the longitudinal direction.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1.

Figure 3 is a schematic representation of the woven structure of the zipper tape being broken in the width direction and schematically represented Illustration of the diagram.

Fig. 4 is a cross-sectional explanatory view showing a state in which a cloth such as clothes is attached to a slide fastener.

Fig. 5 is a cross-sectional explanatory view showing a state in which the fabric is sewn to the branch portion in a state in which the cloth is folded back.

Fig. 6 is a cross-sectional explanatory view showing a variation of the chain belt.

Fig. 7 is a partial plan explanatory view showing a zipper of a fastener tape according to another embodiment of the present invention.

Fig. 8 is a cross-sectional explanatory view taken along line B-B of Fig. 7.

Fig. 9 is a partial plan explanatory view showing a variation of a branch portion of the chain belt of Fig. 8.

Fig. 10 is a cross-sectional explanatory view showing still another modification of the chain belt.

The preferred embodiments of the present invention are described below, but the present invention is not limited to the embodiments, and may be appropriately modified within the scope of the claims and the scope of the claims. Fig. 1 is a plan explanatory view showing a zipper 100 of a fastener tape 10 according to an embodiment of the present invention, which is broken in the longitudinal direction (based on the upper and lower sides of the paper surface of Fig. 1). Figure 2 is a cross-sectional view taken along line A-A of Figure 1. The zipper 100 includes a pair of woven zipper tapes 11 which are woven by left and right (left and right based on the paper sheets of Figs. 1 and 2), and are attached to the width direction of each of the zipper tapes 11 in the longitudinal direction (perpendicular to the longitudinal direction and the zipper cloth) a pair of left and right fastener elements 20 on the opposite side ends of the belt 11 in a direction parallel to the front side, a metal slider 30 for engaging and disengaging the fastener elements 20, and a zipper Metal or resin upper stop 40 and separable insert of the sprocket 20 along the longitudinal direction of the longitudinal direction of the fastener element row to define the movement of one or the other of the slider 30 toward the longitudinal direction Plug-in 50 (stop). The fastener element 20 of the present embodiment is formed by bending a monofilament fiber made of a thermoplastic synthetic resin such as polyester or polyamine into a spiral shape, and continuously includes the meshing head 21, the upper leg 22, and the opposite. The rotating portion 23 and the lower leg portion 24. Moreover, the spiral fastener element 20 may be attached to the back side of the fastener tape 11 (the side opposite to the surface side of the mounting of FIG. 1). Again, will The direction perpendicular to the front side of the zipper tape 11 (front and back direction) is referred to as a thickness direction, and in the following description, the thickness means the dimension in the thickness direction.

The slider 30 includes a slider body 30a including a first flap 31, a second flap 32, and the like, a cover member 33 fixed to the first flap 31, and a pull tab 34 rotatably coupled thereto. Cover member 33. By moving the slider body 30a to the upper side of the sheet of FIG. 1 (hereinafter referred to as "upper direction") by the user holding the pull tab 34, the engaging head portions 21 of the left and right fastener elements 20 are engaged and closed; Moving to the lower side of the paper surface of Fig. 1 (hereinafter referred to as "lower length direction") and opening between the engaging heads 21. The upper stopper (stop) 40 includes left and right upper stopper members 41 attached to the upper end in the longitudinal direction of the fastener element rows of the fastener elements 20 in the left and right fastener tapes 11. The detachable insert 50 includes a pin 51 and a pin 53 attached to the lower end of the longitudinal direction of the element row of the fastener elements 20 in the right and left zipper tapes 11, and is integrated with the pin 51 and is available for the other. The latch 53 is inserted and snapped into the tail cylinder 52. When the tail cylinder 52 is engaged with the above-described plug 53, the longitudinal end portions of the left and right chain belts 10 are coupled to each other. Further, by moving the slider 30 to lower the detachable insert 50 and pulling out the latch 53 from the tail cylinder 52 through the slider 30, the left and right chain belts 10 are separated. The chain belt 10 is attached to the fastener tape 11 with a fastener element 20, an upper stop (stop) 40, and a detachable insert (stop) 50. Alternatively, the detachable insert 50 can be replaced with a lower stop (stop). The slide fastener 100 is provided with a slider 30 that engages and separates the fastener elements 20 of the left and right fastener tapes 10, respectively.

Referring to Fig. 2, each of the fastener tapes 11 is divided into a fastener attaching portion 12 on the side (one side or the opposite side) on which the fastener element 20 is attached in the width direction, and the other side in the width direction (hereinafter referred to as " The branch of the cloth mounting side") is folded back to the two branch portions 13. The element attaching portion 12 includes an intermediate portion 14 that is offset from the range of the fastener element 20 in the element attaching portion 12. The branch portion 13 includes a front side sheet portion 13a and a back side sheet portion 13b which are divided into two from the branch starting point 15 which is a boundary with the element attaching portion 12 (the intermediate portion 14) toward the cloth mounting side. The length of the back side sheet portion 13b in the width direction, that is, the length from the branch starting point 15 to the cloth mounting side end is longer than the length of the front side sheet portion 13a in the width direction by 0.3 mm to 3.0 mm. In other words, the other end of the back side sheet portion 13b (the end on the cloth mounting side) is offset in the width direction with respect to the other end of the front side sheet portion 13a (the end on the cloth mounting side). The difference in the offset in the width direction is 0.3 mm to 3.0 mm, and the difference is fixed over the longitudinal direction. This difference can be set depending on the thickness of the cloth or the like attached to the front side and the back side sheet portions 13a and 13b. Here, the difference in the offset in the width direction is 0.3 mm, which corresponds to one in terms of warp yarns, and the difference in offset is 3 mm, which corresponds to 9 to 10 warp yarns.

Here, in order to insert the cloth between the front side sheet portion 13a and the back side sheet portion 13b, the front side sheet portion is manually opened with respect to the back side sheet portion 13b (or the front side sheet portion 13a). In the case of 13a (or the back side sheet portion 13b), if the lengths of the front side and back side sheet portions 13a and 13b in the width direction are equal, it may be difficult to open. However, the end of the other side of the back side sheet portion 13b is offset in the width direction with respect to the other end of the front side sheet portion 13a as described above, and it is easy to open when the cloth is sandwiched. In addition, since the sewing is performed on the front side of the chain member, the front side branch sheet is surely sewn to the fabric. However, the back side branch sheet portion may not be smoothly sewn to the cloth. The sewing error as described above is particularly likely to occur in the case where the fabric is attached to the side end of the zipper tape in the width direction, and the back side side branch sheet protrudes in the thickness direction of the cloth according to the thickness of the cloth. The position in the width direction of the side of the side branch sheet in the width direction of the fabric attachment side is offset from the width direction of the cloth attachment side end in the width direction of the front side branch sheet toward the fastener element side, but by the back side sheet portion 13b The length in the width direction is longer than the length in the width direction of the front side sheet portion 13a, so that the sewing error can be prevented from occurring.

In the chain belt 10 described above, the branch portion 13 of the fastener tape 11 has the other end in the width direction of the front side sheet portion 13a (the side opposite to the side on which the fastener element is attached) The other end of the back side sheet portion 13b in the width direction is shifted in the width direction, whereby the length in the width direction of the front side sheet portion 13a and the back side sheet portion 13b is started from the width direction. Branching into the front and back side sheet portions 13a, 13b The length from the branch starting point to the end of the other side is different. Thereby, the front side sheet portion 13a (or the back side sheet portion 13b) is easily attached to the back side sheet portion 13b (or the front side) when the cloth is interposed between the front side sheet portion 13a and the back side sheet portion 13b. The sheet portion 13a) is turned over. In the case where the operator performs the sewing on the front side of the fastener tape 10, it is preferable that the length of the back side sheet portion 13b in the width direction is longer than that of the front side sheet portion 13a. When the cloth such as clothes or bags is inserted between the front side and the back side sheet portions 13a and 13b to be sewn, even if the back side sheet portion 13b protrudes in the thickness direction of the cloth (see FIGS. 4 and 5), Further, it is possible to prevent the position in the width direction of the cloth-side mounting side end in the width direction of the back side sheet portion 13b from being shifted toward the side of the fastener element 20 from the width direction of the cloth-mounting side end in the width direction of the front side sheet portion 13a. In the case where the operator performs sewing while viewing the back side of the fastener tape, it is preferable that the length of the front side sheet portion in the width direction is longer than that of the back side sheet.

Fig. 3 is an explanatory view showing a woven structure of the fastener tape 11 in a simplified manner. The fastener tape 11 is formed by weaving a warp yarn 11a (see FIG. 3) along the longitudinal direction and a weft yarn 11b along the width direction. In the present embodiment, the plurality of warp yarns 11a are arranged in the width direction, and the weft yarns 11b are exposed on the front side of one of the warp yarns 11a, and then in the next warp yarn 11a (with the width of the above one warp yarn 11a). The back side of the warp yarns 11a) adjacent in the direction is exposed so as to be alternately woven in the width direction. In the same manner, the warp yarn 11a is reversed from the warp yarn 11a closest to the end side at the cloth mounting side end with the weft yarn 11b facing the cloth mounting side from the opposite side in the width direction with respect to the warp yarn 11a. The direction is slightly staggered and faces the opposite side in the width direction. At this time, the front surface of the weft yarn 11b with respect to the alternating back pattern of the warp yarn 11a is opposite to the first pattern of the previous one. The weft yarn 11b is folded back after forming the yarn loop 11c at the opposite side end, and is slightly shifted in the longitudinal direction, and is oriented toward the width direction of the cloth mounting side. The other one of the loops 11c is passed in the longitudinal direction, and the other loop 11c is passed, and the loops 11c are continuous in a chain shape in the longitudinal direction. Further, the weft yarn 11b is formed by integrally combining two yarn-like patterns 11ba in the fastener element mounting portion 12 of the fastener tape 11, and the two yarn-like 11ba are separated from the branch starting point 15 of the fastener tape 11 one by one into a front side. Side sheet portion 13a and back side sheet In the portion 13b, each of the yarn-like portions 11ba is folded back on the cloth-mounted side end to the warp yarn 11a closest to the end side, and is oriented toward the opposite side in the width direction, at the branch start point 15, and the yarn-like 11ba and the back side of the front-side sheet portion 13a. The yarn shape 11ba of the side sheet portion 13b is combined, and is turned toward the opposite side in the width direction, and the yarn loop 11c is formed at the opposite side end. Therefore, the weft yarn 11b includes one yarn shape 11ba in each of the front side sheet portion 13a and the back side sheet portion 13b, and the front side sheet portion 13a and the back side sheet portion 13b each have a thickness larger than that of the element attaching portion. The thickness of 12 is thin (refer to Figure 2). Further, the thickness of the end forming the yarn loop 11c is thicker than the thickness of the fastener element mounting portion 12. The thickness of the fastener tape 11 can be measured by a dial gauge. As an example, when the fastener tape 11 is measured, the thickness of the portion of the yarn loop 11c formed at one end is 0.4 mm or more and 0.9 mm or less. The thickness of the front side sheet portion 13a or the back side sheet portion 13b in the other end is 0.2 mm or more and less than 0.4 mm. The fastener element 20 is attached to the element attaching portion 12 of the fastener tape 11 by the mounting yarn 11e. Further, reference numeral 11d in Fig. 2 is a core wire which is passed through the element rows of the fastener elements 20.

4 is a cross-sectional explanatory view showing a state in which the cloth 1 such as clothes is attached to the slide fastener 100. The cloth 1 is inserted between the front side sheet portion 13a and the back side sheet portion 13b of the branch portion 13 of each of the fastener tapes 10. In this case, the front side sheet portion 13a and the back side sheet portion 13b are each cloth. Since the end of the mounting side is displaced, the front side sheet portion 13a can be easily opened with respect to the back side sheet portion 13b. After the fabric 1 is sandwiched between the branch portions 13, the front side sheet portion 13a, the cloth 1 and the back side sheet portion 13b are sewn by the thread 2, thereby being attached to the fastener tape 11. In this example, the two opposite portions of the branch portion 13 and the cloth mounting side are sewn together in the longitudinal direction. This sewing is usually performed by the operator visually observing the side of the front side sheet portion 13a of the fastener tape 10. According to FIG. 4, when the fabric 1 is interposed between the front side sheet portion 13a and the back side sheet portion 13b, the back side sheet portion 13b protrudes in the thickness direction of the cloth according to the thickness of the cloth 1. The cloth-mounted side end of the back side sheet portion 13b in the width direction is offset toward the opposite side. However, since the length of the back side sheet portion 13b in the width direction is longer than that of the front side sheet portion 13a, the cloth of the back side sheet portion 13b which is convex in the thickness direction of the cloth is attached. The side end is still located on the cloth mounting side end of the front side sheet portion 13a slightly closer to the cloth mounting side. Therefore, particularly in the sewing of the cloth mounting side in the branch portion 13, the back side sheet portion 13b which the operator cannot see can be surely sewn. Further, since the front side sheet portion 13a and the back side sheet portion 13b are thinner than the fastener element attaching portion 12 of the fastener tape 11, the stitched front side and back side sheet portions 13a and 13b are each separated from the cloth 1. The step difference is small, and it becomes an impression of smooth appearance. The cloth 1 sandwiched between the branch portions 13 is restricted by the branching starting point 15 in the width direction of the tape, and is inserted without exceeding the branch starting point 15, and therefore has a positioning function. Further, the branch start point 15 is located on the other side of the portion where the first flap 31 and the second flap 32 of the slider 30 in the tape width direction pass. Thereby, when the slider 30 moves, the branch portion 13 can be prevented from being worn, and the life of the fastener tape 11 becomes long. Further, positioning at the time of placing the cloth between the front side sheet portion 13a and the back side sheet portion 13b can be achieved, and excessive entry can be prevented. When the slider 30 moves excessively, the slider 30 interferes with the slider 30, and the fastener tape 11 is damaged or caught between the first flap 31 and the second flap 32, and the operation of moving the slider 30 is difficult.

Here, the portion through which the first flap 31 and the second flap 32 of the slider 30 pass is also referred to as the travel range of the slider 30, and is the lower side of the first flap 31 and the second flap 32. Size B in parallel in the width direction. Further, in a state where the fastener elements 20 are engaged, the branch start point 15 is located outside the size B which is the travel range. In other words, the tape L from the other end of the width direction of the fastener element 20 in the width direction of the fastener 30 up to the circumference of the first flap 31 or the second flap 32 of the slider 30 is obtained from the fastener element 20 The dimension S from the other end in the width direction up to the branch start point 15 is larger. Further, in the present embodiment, the branching start point 15 is a weft 11b which is divided into the warp yarn 11a on the front side of the front side sheet portion 13a and the back side sheet portion 13b.

FIG. 5 is a cross-sectional explanatory view showing a state in which the end portion of the cloth 1 is folded back and sewn to the branch portion 13 of the fastener tape 10. In this case, the thickness of the cloth 1 interposed between the front side sheet portion 13a and the back side sheet portion 13b is partially doubled, and accordingly, the back side sheet portion 13b is turned back. The projection on the face side (below the paper surface of Fig. 5) is also larger than that of Fig. 4, and the offset of the cloth attachment side end of the back side sheet portion 13b toward the opposite side is also larger than that of Fig. 4. However, since the cloth attachment side end of the back side sheet portion 13b is located at substantially the same width direction as the cloth attachment side end of the front side sheet portion 13a, the sewing error of the back side sheet portion 13b hardly occurs. .

Fig. 6 shows a modification of the fastener tape, and the configuration other than the fastener tape is the same as that described. The fastener tape 61 of the fastener tape 60 of FIG. 6 includes a front side tape portion 61a and a back side tape portion 61b. The front side and back side tape portions 61a and 61b are joined to each other by the element attaching portions 62, and are separated from each other without being joined by the branch portions 63. In other words, the element attaching portion 62 connected by the mounting yarn is branched into two on the other side. The branch portion 63 includes a front side sheet portion 63a which is a portion which is branched from the branch starting point 65 toward the cloth mounting side and which is a part of the front side belt portion 61a, and a back side sheet portion which is a portion of the back side belt portion 61b. 63b. The branch starting point 65 is located adjacent to the other side of the mounting yarn 11e closest to the other side in the width direction. The cloth attachment side end of the back side sheet portion 63b is displaced toward the cloth attachment side from the cloth attachment side end of the front side sheet portion 63a, and the back side sheet portion 63b has a longer length in the width direction than the front side sheet portion 63a. In this example, the front side belt portion 63a and the back side belt portion 63b are also woven, and the weft yarn on the fabric attachment side from the opposite side in the width direction with respect to the warp yarn is attached to the cloth attachment side end. The warp yarns close to the end side are reversed slightly in the longitudinal direction and toward the opposite sides in the width direction. At this time, the front side of the weft yarn with respect to the alternating back pattern of the warp yarn is opposite to the first pattern of the previous one. The weft yarn is folded back after the yarn ends are formed at the opposite side ends, and is slightly shifted in the longitudinal direction, and is oriented toward the width direction of the cloth mounting side. One of the yarn loops is adjacent to one of the yarn loops in the longitudinal direction, and the yarn loops are continuous in a chain shape in the longitudinal direction. In the above description, the length of the back side sheet portion 63b in the width direction is longer than that of the front side sheet portion 63a, but the back side sheet portion may be viewed during the sewing operation. Since the sewing is performed, the length of the front side sheet portion in the width direction may be made longer than that of the back side sheet.

Fig. 7 is a partial plan explanatory view showing the zipper 101 of the fastener tape 80 according to another embodiment of the present invention broken. Fig. 8 is a cross-sectional explanatory view taken along line B-B of Fig. 7. The zipper 101 includes left and right zipper tapes 81 and right and left fastener elements 90 attached to opposite ends of the respective zipper tapes 81 in the width direction. A slider or the like of the zipper 101 is omitted from illustration. The fastener element 90 is a resin which is formed by injection molding a thermoplastic resin such as polyacetal, nylon or polypropylene into the fastener tape 81. Each of the fastener tapes 81 is divided into a fastener attachment portion 82 in which the fastener element 90 is attached in the width direction, and a branch portion 83 in which the branches on the cloth attachment side are folded back. The branch portion 83 includes a front side sheet portion 83a and a back side sheet portion 83b which are divided into two from the branch starting point 85 which is a boundary with the element attaching portion 82 toward the cloth mounting side. The end of the front side sheet portion 83a on the cloth mounting side is formed in a shape in which the circular arc 83c is continuous in the longitudinal direction. The cloth-mounting side of the front side sheet portion 83a as described above can be attached to the cloth side of the front side sheet portion 83a by, for example, an ultrasonic type cutter by forming the fastener tape 81 including the branch portion 83. The end is cut and formed. On the other hand, the end of the back side sheet portion 83b on the cloth mounting side is linearly along the longitudinal direction. The position in the width direction of the first spot 83d corresponding to the apex (83d) of the arc 83c at the end of the cloth mounting side of the front side sheet portion 83a on the cloth mounting side, and the cloth mounting side of the back side sheet portion 83b. The end is the same. The portion other than the first point 83d of the end of the cloth-side mounting portion of the front side sheet portion 83a is offset from the end on the cloth mounting side of the back side sheet portion 83b toward the element attaching portion 82 side. This offset is the largest at the second point 83e corresponding to both ends (83e) of the circular arc 83c which is recessed toward the sprocket attachment portion 82 side of the arc 83c at the end of the cloth-side mounting side of the front side sheet portion 83a. Therefore, the length of the front side sheet portion 83a in the width direction changes over the longitudinal direction, and the length in the width direction of the first spot 83d is the same as that of the back side sheet 83b, and the difference in the width direction of the second spot 83e is the largest. In the branch portion 83 as described above, when the fabric 1 is sandwiched between the front side and the back side sheet portions 83a and 83b, the front side sheet portion 83a can be easily opened with respect to the back side sheet portion 83b, and sewn. The workability of the time is improved. The arc 83c at the end of the front side sheet portion 83a can be formed by cutting the zipper tape 81 and cutting it by a cutter. However, it is not limited In order to form the arc 83c, the weft yarn may be folded back at the end of the front side sheet portion 83a.

Fig. 9 shows a branch portion 93 as a variation of the branch portion 83 of the chain belt 80 of Fig. 7. The configuration other than the branch portion 93 is the same as that of Fig. 7, and therefore the same reference numerals are attached. In the branch portion 93 of Fig. 9, the end on the cloth mounting side of each of the front side sheet portion 93a and the back side sheet portion 93b is formed into an arc (83c) in the same manner as the front side sheet portion 83a of the branch portion 83. Continuous in the length direction. The first point 93aa corresponding to the apex of the arc of the end of the mounting side of the front side sheet portion 93a and the first point 93ba and the width corresponding to the apex of the arc of the end of the mounting side of the back side sheet portion 93b The starting point (85) of the branch in the direction is equal to each other, and is shifted by a half arc in the longitudinal direction. With this, the second point 93ab corresponding to both ends of the arc of the end on the mounting side of the front side sheet portion 93a and the second point corresponding to both ends of the arc on the side of the mounting side of the back side sheet portion 93b are provided. The 93bb is also offset in the longitudinal direction by a half arc. In this case, when the fabric 1 is sandwiched between the front side and the back side sheet portions 93a and 93b, the front side sheet portion 93a can be easily opened with respect to the back side sheet portion 93b, and the sewing is performed at the time of sewing. Increased workability. The arc of the end of the front side sheet portion 93a and the end of the back side sheet portion 93b can be formed by cutting the zipper tape 81 and cutting it by a cutter. However, the formation method is not limited thereto, and the weft yarn may be folded back at the ends of the front side sheet portion 93a and the back side sheet portion 93b in order to form an arc. Further, the end of the cloth mounting side in FIGS. 7 to 9 is not limited to an arc shape, and may be a triangular shape or a rectangular shape.

Further, the shape may be formed at one of the ends of the cloth mounting side. In other words, in the longitudinal direction of the fastener tape, the front side sheet portion and the back side sheet portion may be shifted in the width direction. Here, the offset in the width direction also means that the back side sheet portion (or the front side sheet portion) can be seen when the fastener tape or the zipper is viewed from the front side (or the back side).

Figure 10 is a further variation of the tether. The zipper tape 71 in the chain belt 70 of FIG. 10 is such that one zipper tape (71) is folded back in the width direction at the opposite side end, and includes a front side tape. The portion 71a and the back side tape portion 71b. Similarly to the example of FIG. 6, the front side and back side tape portions 71a and 71b are joined to each other in the element attaching portion 72, and are separated from the branch portion 73. In other words, the sprocket attachment portion 72 connected by the attachment of the yarn is branched into two on the other side. The branch portion 73 includes a front side sheet portion 73a which is a portion of the front side belt portion 71a which is branched from the branch starting point 75 toward the cloth mounting side, and a back side sheet portion which is a portion of the back side belt portion 71b. 73b. The branch start point 75 is located adjacent to the other side of the mounting yarn 11e closest to the other side in the width direction. The cloth attachment side end of the back side sheet portion 73b is offset from the cloth attachment side of the front side sheet portion 73a toward the cloth attachment side, and the back side sheet portion 73b has a length in the width direction longer than the front side sheet portion 73a. In the above description, the length of the back side sheet portion in the width direction is longer than that of the front side sheet. However, during the sewing operation, the back side sheet portion may be viewed and sewn. In response to this, the length of the front side sheet portion in the width direction may be made longer than that of the back side sheet.

11‧‧‧ zipper tape

11d‧‧‧core

11e‧‧‧Installation of yarn

12‧‧‧Chain mounting

13‧‧‧ Branch

13a‧‧‧Front side sheet

13b‧‧‧ Back side sheet

14‧‧‧Intermediate

15‧‧‧ branch starting point

21‧‧‧Meshing head

22‧‧‧上上

23‧‧‧Reversal Department

24‧‧‧foot

30a‧‧‧Slider body

31‧‧‧1st wing

32‧‧‧2nd wing

33‧‧‧Caps

B‧‧‧ size

L‧‧‧ size

S‧‧‧ size

Claims (7)

A chain belt characterized by comprising a zipper tape (11, 61, 71, 81) and a width direction perpendicular to the longitudinal direction of the zipper tape (11, 61, 71, 81) mounted along the length direction a chain link (10, 60, 70, 80) of one of the zipper elements (20), the zipper element (20) is a spiral zipper element, and the spiral zipper element (20) is mounted On the front side of the fastener tape, the fastener tape (11, 61, 71, 81) is branched on the other side opposite to the one side in the width direction, and is branched into a front side sheet portion (13a, 63a, 73a, 83a, 93a) and the back side sheet portions (13b, 63b, 73b, 83b, 93b), the two branch portions (13, 63, 73, 83, 93), the back side or the front side sheet portion The ends of the other side of (13b, 63b, 73b, 83b, 93b; 13a, 63a, 73a, 83a, 93a) are integral in the longitudinal direction, with respect to the front side or back side sheet portions (13a, 63a) The ends of the other side of 73a, 83a, 93a; 13b, 63b, 73b, 83b, 93b) are offset in the width direction, and the front side sheet portions (13a, 63a, 73a, 83a, 93a) and Back side sheet The portions (13b, 63b, 73b, 83b, 93b) are thinner than the portions other than the branch portions (13, 63, 73, 83, 93) of the fastener tape (11, 61, 71, 81), and the back surface The length of the side sheet portion in the width direction is longer than that of the front side sheet. The chain belt of claim 1, wherein the zipper tape (11, 61, 71, 81) is woven by a warp yarn (11a) along a length direction and a weft yarn (11b) along a width direction, the weft yarn (11b) is the end of the other side in the width direction of each of the front side sheet portions (13a, 63a, 73a, 83a, 93a) and the back side sheet portions (13b, 63b, 73b, 83b, 93b) Fold back and on the above side in the width direction The end is formed by a yarn loop (11c) which is continuous in a chain shape in the longitudinal direction and is folded back. The chain of claim 1 or 2, wherein the difference in the width direction is 0.3 mm to 3.0 mm in the branch portions (13, 63, 73) offset in the width direction. A chain belt characterized by comprising a zipper tape (11, 61, 71, 81) and a width direction perpendicular to the longitudinal direction of the zipper tape (11, 61, 71, 81) mounted along the length direction a chain link (10, 60, 70, 80) of one of the zipper elements (20), the zipper element (20) is a spiral zipper element, and the spiral zipper element (20) is mounted On the front side of the fastener tape, the fastener tape (11, 61, 71, 81) is branched on the other side opposite to the one side in the width direction, and is branched into a front side sheet portion (13a, 63a, 73a, 83a, 93a) and the back side sheet portions (13b, 63b, 73b, 83b, 93b), the two branch portions (13, 63, 73, 83, 93), the back side or the front side sheet portion The other end of the (13b, 63b, 73b, 83b, 93b; 13a, 63a, 73a, 83a, 93a) is opposite to the front side or back side sheet portion (13a, 63a, 73a, 83a, 93a; At least a part of the ends of the other side of 13b, 63b, 73b, 83b, and 93b) are shifted in the width direction, and the front side sheet portions (13a, 63a, 73a, 83a, 93a) and the back side sheet are Department (13b, 63b) The thickness of 73b, 83b, and 93b) is thinner than a portion other than the branch portions (13, 63, 73, 83, 93) of the fastener tape (11, 61, 71, 81), and the width of the back side sheet portion is The length in the direction is longer than that of the front side sheet. A zipper, characterized in that it comprises left and right zipper tapes (11, 61, 71, 81) and widths perpendicular to the longitudinal direction of each zipper tape (11, 61, 71, 81) mounted along the length direction. a zipper (20) of left and right zipper teeth on one side of the direction, and a slider (100) for engaging and separating the left and right fastener elements (20), the zipper (20) In the form of a spiral zipper element, the spiral zipper element (20) is attached to the front side of the zipper tape. Each of the above-mentioned fastener tapes (11, 61, 71, 81) is branched on the other side opposite to the one side in the width direction, and is branched into a front side sheet portion (13a, 63a, 73a, 83a, 93a) and a back surface. Side sheet portions (13b, 63b, 73b, 83b, 93b) of the two branch portions (13, 63, 73, 83, 93), the back side or front side sheet portions (13b, 63b, 73b, 83b) The ends of the other side of 93b; 13a; 63a, 73a, 83a, 93a) are opposite to the front side or back side sheet portions (13a, 63a, 73a, 83a, 93a; 13b, 63b, 73b, 83b, The end of the other side of 93b) is offset in the width direction, and the front side sheet portions (13a, 63a, 73a, 83a, 93a) and the back side sheet portions (13b, 63b, 73b, 83b, 93b) is thinner than portions other than the branch portions (13, 63, 73, 83, 93) of the fastener tape (11, 61, 71, 81), and the length of the back side sheet portion in the width direction Compared with the above-mentioned front side sheet minister. The zipper of claim 5, wherein the zipper tape (11, 61, 71, 81) is woven by a warp yarn (11a) along a length direction and a weft yarn (11b) along a width direction, the weft yarn ( 11b) is folded back at the other side of the width direction of each of the front side sheet portions (13a, 63a, 73a, 83a, 93a) and the back side sheet portions (13b, 63b, 73b, 83b, 93b) And at the end of the one side in the width direction, the yarn loop (11c) which is continuous in the longitudinal direction in the longitudinal direction is folded back. The zipper of claim 5 or 6, wherein the weft yarn (11b) constituting the sprocket mounting portion (12) of the zipper tape (11) is separated from the branch starting point (15) of the zipper tape (11) one by one. The front side sheet portion (13a) and the back side sheet portion (13b), the branch starting point (15) is located on the first flap (31) and the second flap of the slider (30) in the tape width direction. The portion through which the plate (32) passes is further to the other side.