Slide fastener and product with slide fastener

Abstract

The utility model provides a zipper which can be used for manufacturing a product with a zipper, wherein the product can prevent or restrain zipper belts from being exposed. The utility model relates to a slide fastener (20, 60) comprising fastener stringers (21, 61) and a slider (40), each fastener element (23, 63) comprising: an element base (23a, 63a); and fin sections (23b, 63b) that extend from the element base sections (23a, 63a) toward the tape inside of the fastener tape (22) and that have a smaller dimension in the tape thickness direction than the element base sections (23a, 63a), the tip sections of the fin sections (23b, 63b) of the fastener elements (23, 63) being positioned further toward the outside of the slider body (41) than the inner wall surfaces of the flanges (45, 46) at the shoulder-side end of the slider body (41), and the fin sections (23b, 63b) being positioned further toward the outside of the slider body (41) than the inner wall surfaces of the flanges (45, 46) at the shoulder-side end of the slider body (41). The ratio of the total fin width to the maximum fastener element width (W1) is less than 40%.

Description

Technical Field

[0001] The utility model relates to a zipper chain tape and a product with a zipper. Background Art

[0002] For example, a water-repellent zipper is described in WO2011 / 064893A1 (Patent Document 1). Briefly, the zipper described in Patent Document 1 includes: a pair of left and right zipper chain tapes formed with tooth rows; and a slider slidably mounted on the left and right tooth rows.

[0003] Each of the left and right zipper chain tapes includes: a zipper tape (tape member); and a plurality of zipper teeth provided at the tape side edge of the zipper tape. The zipper tape includes: a narrow tape body having water-repellent and moisture-permeable properties; and a core cord portion provided at the tape side edge of the tape body. In addition, the zipper tape has a property of suppressing liquid from penetrating from the tape front side to the tape back side of the zipper tape.

[0004] When, for example, the zipper described in Patent Document 1 is installed in a product such as clothing or a luggage, the zipper tape and the zipper mounting member of the product (for example, the fabric of the clothing) are sewn in a state where they overlap by a sewing machine.

[0005] In conventional sewing, the zipper tape and the zipper mounting portion of the zipper mounting member are usually introduced between the needle plate and the presser foot of the sewing machine in a state where they overlap each other, and thus the zipper tape and the zipper mounting edge are sewn together. In this case, considering the positional relationship between the presser foot and the sewing needle of the sewing machine and the zipper teeth of the zipper chain tape during sewing, it is necessary to move the sewing needle of the sewing machine up and down reciprocally at a position away from the zipper teeth of the zipper tape in the tape width direction to pierce the zipper tape. As a result, the sewing portion of the sewing thread that sews the zipper tape and the zipper mounting member is formed at a position away from the zipper teeth in the tape width direction, and thus the zipper tape is disposed so as to be exposed to the outside between the zipper teeth and the zipper mounting member.

[0006] However, in a product with a zipper, there are cases where the zipper is also regarded as a design element of the product. Therefore, in order to improve the design or appearance quality of the product with a zipper, it is sometimes required that the zipper tape of the zipper cannot be seen or is difficult to see.

[0007] Prior Art Documents

[0008] Patent Documents

[0009] Patent Document 1: WO2011 / 064893A1 Summary of the Utility Model

[0010] The present utility model is completed in view of the above problems, and its object is to provide a zipper capable of manufacturing a zippered product and a zippered product manufactured using the zipper, which can prevent or suppress the zipper tape from being exposed between the zipper teeth and the zipper mounting member.

[0011] To achieve the above object, the zipper of the present utility model includes: a pair of zipper tooth tapes, which form a row of teeth by providing a plurality of zipper teeth on the zipper tape; and a slider, which is slidably mounted on the row of teeth. In the zipper, the slider has a slider body, and the slider body includes: an upper wing plate and a lower wing plate, which are arranged to be separated from each other; a connecting post, which connects between the upper wing plate and the lower wing plate; and a flange, which extends from a side edge portion of at least one of the upper wing plate and the lower wing plate. In the slider body, there are provided: a tooth guiding path, which is formed in a Y shape between the upper wing plate and the lower wing plate; a pair of shoulder openings, which are provided on the side of the connecting post with the connecting post interposed therebetween; and an insertion gap, which is provided at a side edge portion of the slider body and communicates with the tooth guiding path. Each of the zipper teeth includes: a tooth base portion, which has a portion with a constant dimension in the tape thickness direction of the zipper tape; and a fin portion, which extends from the tooth base portion toward the inner side of the zipper tape, and the dimension in the tape thickness direction becomes smaller than that of the tooth base portion across a stepped portion. When observing a cross-section of the zipper tape orthogonal to the tape length direction at the shoulder opening side end portion of the slider body in which the row of teeth is inserted into the tooth guiding path, in a state where the side surface of the tooth base portion of the zipper tooth facing the outer side in the left-right direction does not contact the inner wall surface of the flange of the slider, the top end portion of the fin portion is located at a position outside the slider body relative to the inner wall surface of the flange. When the maximum value of the dimension of two zipper teeth meshing with each other in the tape width direction of the zipper tape in a state where the pair of rows of teeth are meshed is defined as the maximum tooth width and the total value of the dimensions of the fin portions of the two zipper teeth in the tape width direction is defined as the total fin width, the ratio of the total fin width to the maximum tooth width is less than 40%.

[0012] In the zipper of the present utility model, preferably, when observing a cross-section of the zipper tape orthogonal to the tape length direction at the shoulder opening side end portion of the slider body, in a state where the side surface of the tooth base portion of the zipper tooth facing the outer side in the left-right direction does not contact the inner wall surface of the flange of the slider, the top end portion of the fin portion is located at a position outside the slider body relative to the center position of the flange in the tape width direction.

[0013] In addition, preferably, the dimension of the fin portion in the tape length direction gradually decreases toward the top end portion of the fin portion.

[0014] Furthermore, it is preferable that the dimension of the base end portion of the fin portion in the tape length direction is smaller than the dimension of the side edge portion of the chain tooth base on the side connected to the fin portion in the tape length direction.

[0015] In addition, it is also preferable that the dimension of the fin portion in the tape thickness direction of the zipper tape gradually decreases toward the tip end portion of the fin portion.

[0016] Next, according to the present invention, there is provided a zippered product, which includes: the zipper having the above structure; and a zipper mounting member, in which the zipper chain tape is mounted on a chain tape mounting edge portion through a sewing portion formed by sewing.

[0017] In the zippered product of the present invention, it is preferable that the chain tape mounting edge portion has a double-layer portion bent into a U shape when viewed from a cross-sectional view orthogonal to the tape length direction. When viewed from the cross-sectional view, the double-layer portion includes: a first tape portion, at least a part of which is in contact with the zipper tape; a bent portion, which extends from the first tape portion and has a bent shape; and a second tape portion, which extends from the bent portion and is arranged overlapping the first tape portion. A part of the sewing portion is clamped between the first tape portion and the second tape portion in the double-layer portion, and the double-layer portion is fixed to the zipper tape at a position in contact with at least a part of the zipper teeth through the sewing portion.

[0018] In addition, it is preferable that the dimension of the double-layer portion in the tape thickness direction is larger than the interval of the insertion gap of the slider.

[0019] Effects of the Utility Model

[0020] According to the zipper of the present invention, it is possible to prevent or suppress the zipper tape of the zippered product from being exposed between the zipper teeth and the zipper mounting member when manufacturing the zippered product. Description of the Drawings

[0021] Figure 1 It is a top view schematically showing the main part of the zippered product according to Embodiment 1 of the present invention.

[0022] Figure 2 It is schematically showing Figure 1 An enlarged perspective view of a part of the zipper chain tape of the zippered product shown.

[0023] Figure 3 It is schematically showing Figure 2 A bottom view of a part of the zipper chain tape shown.

[0024] Figure 4 It is schematically showingFigure 2 A cross-sectional view of the cross-section of the zipper chain tape shown.

[0025] Figure 5 Is schematically shown Figure 1 A cross-sectional view of the cross-section on the V-V line shown.

[0026] Figure 6 Is a top view schematically showing the main part of the zippered product according to Embodiment 2 of the present invention.

[0027] Figure 7 Is schematically shown Figure 6 A cross-sectional view of the cross-section on the VII-VII line shown.

[0028] Explanation of reference numerals

[0029] 1, 2 Zippered clothes (zippered products) 10 Zipper mounting member (fabric)

[0030] 11 Chain tape mounting edge portion 12 Sewing portion

[0031] 13 Interwoven portion 15 Double layer portion

[0032] 16 First tape portion 17 Bent portion

[0033] 18 Second tape portion 20 Zipper

[0034] 21 Zipper chain tape 22 Zipper tape

[0035] 22a Tape main body portion 22b Core cord portion

[0036] 23 Zipper teeth 23a Tooth base

[0037] 23b Fin portion 24 First tooth portion

[0038] 24a First main trunk portion 24b First fin portion

[0039] 24c Neck portion 24d Engaging head

[0040] 24e First step portion 25 Second tooth portion

[0041] 25a Second main trunk portion 25b Second fin portion

[0042] 25c Tooth head 25d Second step portion

[0043] 27 Tooth row 31 Gap region

[0044] 32 Tooth region 40 Pull tab

[0045] 41 Slide fastener body 42 Upper wing plate

[0046] 43 Lower wing plate 44 Connecting post

[0047] 45 Upper flange 46 Lower flange

[0048] 47 Insertion gap 60 Zipper

[0049] 61 Zipper tape 63 Zipper teeth

[0050] 63a Tooth base 63b Fin portion

[0051] 64 First tooth portion 64a First main trunk portion

[0052] 64b First fin portion 64e First step portion

[0053] 64f First inclined portion 65 Second tooth portion

[0054] 65a Second main trunk portion 65b Second fin portion

[0055] 65d Second step portion 65e Second inclined portion

[0056] 67 Tooth row W1 Maximum tooth width

[0057] W2 Dimension of fin portion in tape width direction Detailed implementation mode

[0058] The inventor of the present application found that: in a zippered product obtained by sewing a zipper tape to the tape mounting edge portion of a zipper mounting member, by forming the sewing portion of the sewing thread in contact with a part of the zipper teeth and pressing the bent portion of the tape mounting edge portion by the sewing portion, it is possible to keep the bent portion of the tape mounting edge portion in contact with the zipper teeth, and thus it is possible to prevent or suppress the exposure of the zipper tape between the zipper teeth and the zipper mounting member.

[0059] On the other hand, in the above-mentioned zippered product, it is clear that: when the bent portion of the tape mounting edge portion is pressed by the sewing portion and comes into contact with the zipper teeth, when the slider of the zipper is slid, the tape mounting edge portion is likely to come into contact with the slider and the tape mounting edge portion is stuck in the slider and biting occurs. As a result, there is a problem of deterioration in the operability of the slider.

[0060] The inventors of the present application have conducted in-depth research and discussion on this, and as a result, it has been found that: by providing fin portions on the zipper teeth that can be inserted into the insertion gaps of the slider and appropriately setting the size of the fin portions (in particular, the size in the width direction of the tape), it is possible to prevent or suppress the exposure of the zipper tape and prevent the operability of the slider from deteriorating, thus completing the present utility model.

[0061] Hereinafter, examples will be listed and the preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

[0062] (Example 1)

[0063] Figure 1 It is a plan view schematically showing the main part of the zippered product related to Example 1. Figure 2 and Figure 3 are respectively an enlarged perspective view and a bottom view schematically showing a part of the zipper chain tape related to Example 1. Figure 4 It is a cross-sectional view schematically showing the cross-section of the zipper chain tape related to Example 1. Figure 5 is Figure 1 A cross-sectional view taken along the line V-V shown.

[0064] In the following description of the zipper and the zippered product, the front-rear direction refers to the direction along the tape length direction of the zipper tape, which is the same direction as the sliding direction of the slider (refer to Figure 1 and Figure 2 ). In particular, the direction in which the slider slides when closing the zipper is set as the front, and the direction in which the slider slides when opening the zipper is set as the rear.

[0065] The left-right direction refers to the direction along the tape width direction of the zipper tape. Specifically, it is the direction orthogonal to the front-rear direction and parallel to the tape surface and tape back of the zipper tape. In addition, the left-right direction can also refer to the direction along the direction in which the tooth rows of a pair of zipper chain tapes engage or disengage from each other. In this case, the direction in which the pair of tooth rows move closer to each other is set as the direction inside the left-right direction, and the direction in which the pair of tooth rows move away from each other is set as the direction outside the left-right direction (refer to Figure 3 ).

[0066] The up-down direction refers to the direction along the direction orthogonal to the tape surface and tape back of the zipper tape (tape surface-back direction or tape thickness direction), which is the direction orthogonal to the front-rear direction and the left-right direction (refer to Figure 4 ). In particular, the direction exposed to the outside when using the zipper (for example, the direction in which the pull tab of the slider is arranged on the zipper tape) is set as the upper side, and the opposite direction is set as the lower side.

[0067] The zippered product 1 of this Embodiment 1 is a piece of clothing (garment), and a zipper 20 is installed at the front opening part of the front body of the clothing 1, and at the opening and closing parts (opening peripheral parts) of the pocket parts provided on the chest and abdomen of the front body. The zippered clothing 1 includes: a zipper 20 having a pair of left and right zipper chain tapes 21; and a zipper mounting member 10 having left and right chain tape mounting edges 11 for mounting the left and right zipper chain tapes 21 respectively.

[0068] In this Embodiment 1, the zipper mounting member 10 for mounting the zipper 20 is the fabric 10 of the clothing 1 (also called garment fabric). In addition, the left and right fabrics 10 forming the front body of the clothing 1 respectively include: a fabric main body part (not shown); and facing side edge parts that are arranged facing the fabric 10 on the opposite side.

[0069] The facing side edge parts of the left and right fabrics 10 are formed as chain tape mounting edges 11 for mounting the zipper chain tapes 21 of the zipper 20, and are provided integrally with the end edge parts of the fabric main body part. The zipper chain tapes 21 are mounted on the chain tape mounting edges 11 of the fabric 10 through a sewing part 12 formed by sewing threads (sewing machine threads).

[0070] Each chain tape mounting edge 11 of the fabric 10 has a double-layer part 15 formed by the fabrics 10 of the clothing 1 overlapping in the up and down direction. The double-layer part 15 of the chain tape mounting edge 11 turns back at the bending part 17 along the front and back direction of the fabric 10 of the clothing 1, and thus forms a U-shaped shape when observed from a cross-sectional view orthogonal to the front and back direction. In this case, the double-layer part 15 contacts the fin part 23b (the second fin part 25b described later) of the zipper teeth 23 described later.

[0071] When observed from a cross-sectional view orthogonal to the front and back direction, the double-layer part 15 includes: a first strip part 16, at least a part of which contacts the zipper tape 22 of the zipper chain tape 21 described later; a bending part 17 that extends from the first strip part 16 and has a bending shape; and a second strip part 18 that extends from the bending part 17 and overlaps the first strip part 16 in the up and down direction.

[0072] In this double-layer part 15, the first strip part 16 is fixed to the zipper tape 22 by the sewing part 12. The first strip part 16 is arranged between the zipper tape 22 and the second strip part 18 in the up and down direction. The second strip part 18 is arranged above the first strip part 16 in a manner away from the zipper tape 22 of the zipper chain tape 21, and is arranged in a manner extending from the fabric main body part (not shown) of the fabric 10 toward the inner side in the width direction. In addition, between the zipper tape 22 and the fabric 10, an adhesive or an adhesive sheet etc. may be provided in a manner not contacting the zipper teeth 23.

[0073] The bent portion 17 of the double-layer portion 15 is formed by bending the fabric 10 at the position of the sewing portion 12 where the zipper tape 22 is sewn to the chain tape mounting edge portion 11 of the fabric 10. A part of the sewing portion 12 is held in a manner of being wrapped inside the bent portion 17. Further, the bent portion 17 is fixed by the sewing portion 12 at a position in contact with the fin portion 23b (second fin portion 25b) of the zipper chain teeth 23.

[0074] The sewing portion 12 that stitches the chain tape mounting edge portion 11 of the fabric 10 and the zipper chain tape 21 is linearly arranged in the front-rear direction of the zipper tape 22 by performing flat sewing using a sewing machine (not shown) (see Figure 3 and Figure 4 ). Further, in the present utility model, the sewing portion that stitches the chain tape mounting edge portion and the zipper chain tape may also be formed by a substantially linear sewing portion, and the sewing portion includes: a linear portion along the front-rear direction of the zipper tape and a portion that is slightly bent or curved inward in the left-right direction.

[0075] The sewing portion 12 of the first embodiment is formed by a sewing thread including the upper thread (machine needle thread) and the bobbin thread of the sewing machine, and has a plurality of interlaced portions 13. Each interlaced portion 13 penetrates the chain tape mounting edge portion 11 of the fabric 10 and the zipper tape 22, and is formed by the crossing of the upper thread and the bobbin thread of the sewing thread. The plurality of interlaced portions 13 are arranged at constant intervals in the front-rear direction.

[0076] At least a part of the interlaced portion 13 of the sewing portion 12 is provided only in a gap region 31 formed between the zipper chain teeth 23 of the zipper chain tape 21 described later. Thereby, the sewing portion 12 can be formed in a linear shape or a substantially linear shape and the sewing portion 12 can be brought into contact with a part of the zipper chain teeth 23 (the first fin portion 24b described later). Further thereby, on the tape surface (upper surface) side of the zipper tape 22, the double-layer portion 15 of the chain tape mounting edge portion 11 can be sewn to the zipper tape 22 in a state of being in contact with the second fin portion 25b of the zipper chain teeth 23 through the sewing portion 12.

[0077] A part of the sewing portion 12 is sandwiched between the first tape portion 16 and the second tape portion 18. Further, the portion of the sewing portion 12 sandwiched between the first tape portion 16 and the second tape portion 18 is the portion of the sewing portion 12 disposed on the upper surface of the first tape portion 16.

[0078] The zipper 20 of the first embodiment includes: a pair of left and right zipper chain tapes 21 having a chain tooth row 27 formed at the tape side edge portion of the zipper tape 22; and a slider 40 slidably mounted on the left and right chain tooth rows 27. The left and right zipper tapes 22 are respectively mounted on the chain tape mounting edge portions 11 of the left and right fabrics 10 through the sewing portion 12.

[0079] In the present Embodiment 1, the slider 40 is formed substantially in the same manner as the sliders described in the above-mentioned WO2011 / 064893A1 (Patent Document 1) or WO2017 / 094145A1. The slider 40 of the present Embodiment 1 will be specifically described. The slider 40 of the present Embodiment 1 includes: a slider body 41; and a pull tab (not shown) which is attached to the slider body 41.

[0080] As Figure 5 shown, the slider body 41 includes: an upper wing plate 42 and a lower wing plate 43 which are arranged in a separated manner from each other; a connecting post 44 which connects between the front end portions of the upper wing plate 42 and the lower wing plate 43; left and right upper flanges 45 which extend from the left and right side edges of the upper wing plate 42 toward the lower wing plate 43; left and right lower flanges 46 which extend from the left and right side edges of the lower wing plate 43 toward the upper wing plate 42; and a pull tab attachment portion (not shown) which is formed integrally with the upper surface of the upper wing plate 42 for attaching the pull tab.

[0081] At the front end portion of the slider body 41, left and right shoulder openings are provided on the left and right sides of the connecting post 44. A rear opening is provided at the rear end portion of the slider body 41. A Y-shaped chain tooth guiding path which communicates with the left and right shoulder openings and the rear opening is provided between the upper wing plate 42 and the lower wing plate 43 of the slider body 41. An insertion gap 47 through which the fin portions 23b (a first fin portion 24b and a second fin portion 25b) of the zipper chain teeth 23 are inserted is provided between the upper flange 45 and the lower flange 46 in the slider body 41. The insertion gap 47 communicates with the chain tooth guiding path.

[0082] In addition, in the present utility model, the slider body only needs to be able to engage or separate the left and right zipper chain teeth 23 when the slider slides along the chain tooth row, and there is no particular limitation. For example, the slider body of the present utility model may also be formed in such a way that one of the upper flange and the lower flange is not provided according to the shape of the zipper chain teeth and the like. In this case, the insertion gap of the slider body is provided between the left and right upper flanges and the lower wing plate or between the upper wing plate and the left and right lower flanges.

[0083] Each of the left and right zipper chain tapes 21 includes: a long and narrow zipper tape 22; and a plurality of synthetic resin zipper chain teeth 23 which are provided at the tape side edge portion of the zipper tape 22. Each zipper tape 22 includes: a tape main body portion 22a which has a tape surface and a tape back surface; and a core cord portion 22b which is provided at the inner side edge of the tape main body portion 22a. The core cord portion 22b is provided integrally with the side edge of the tape main body portion 22a along the tape length direction. The core cord portion 22b is formed so as to protrude in the up and down direction with respect to the tape main body portion 22a.

[0084] In the belt side edge portion of the zipper tape 22, a plurality of zipper teeth 23 are arranged at constant intervals in the front-rear direction, thereby forming a row of teeth 27. Each zipper tooth 23 is formed by injection molding a synthetic resin onto the zipper tape 22.

[0085] Each zipper tooth 23 includes at least: a tooth base portion 23a having a portion with a constant thickness dimension; and a fin portion 23b extending from the tooth base portion 23a toward the outside in the left-right direction (in other words, the inner side of the belt of the zipper tape 22).

[0086] The tooth base portion 23a is fixed so as to extend over the belt main body portion 22a and the core cord portion 22b of the zipper tape 22. In particular, in the case of the first embodiment 1, a portion with a constant thickness dimension of the tooth base portion 23a is formed so as to extend over the belt main body portion 22a and the core cord portion 22b of the zipper tape 22 (refer to Figure 4 ). The tooth base portion 23a includes at least the first main trunk portion 24a and the second main trunk portion 25a of the zipper tooth 23 described below.

[0087] Here, the thickness dimension refers to the dimension in the up-down direction, and the thickness dimension of the tooth base portion 23a is the overall dimension in the up-down direction from the upper surface to the lower surface of the tooth base portion 23a. In addition, in the present utility model, as long as the tooth base portion has a portion with a constant thickness dimension, the shape and size of the tooth base portion are not particularly limited.

[0088] The fin portion 23b is formed with a thickness dimension smaller than that of the tooth base portion 23a across a step portion. The fin portion 23b includes: a first fin portion 24b on the lower surface side, which is formed on the back surface of the zipper tape 22; and a second fin portion 25b on the upper surface side, which is formed on the surface of the zipper tape 22. In addition, in the present utility model, the fin portion 23b may also be formed by only one of the first fin portion 24b and the second fin portion 25b.

[0089] In the first embodiment 1, since the fin portion 23b is provided on each zipper tooth 23, when the slider 40 is slid along the row of teeth 27, the upper flange 45 and the lower flange 46 of the slider 40 can move at a position in a space portion formed outside the step portion between the tooth base portion 23a and the fin portion 23b in the left-right direction.

[0090] Each zipper tooth 23 of the first embodiment 1 includes: a first tooth portion 24 disposed on the back side of the belt of the zipper tape 22; and a second tooth portion 25 disposed on the front side of the belt of the zipper tape 22 and having a shape different from that of the first tooth portion 24. In this case, the first tooth portion 24 of the zipper tooth 23 is a portion hidden on the back side of the clothing 1 in the zipped clothing 1. The second tooth portion 25 is a portion exposed on the outside of the clothing 1.

[0091] AsFigure 3 As shown, the first chain tooth portion 24 includes: a first main trunk portion 24a directly fixed to the zipper tape 22; a first fin portion 24b extending outward from the first main trunk portion 24a in the left and right directions; a neck portion 24c extending inward from the first main trunk portion 24a in the left and right directions; and an engaging head portion 24d further extending inward from the neck portion 24c in the left and right directions and having a substantially oval shape in the bottom view of the zipper teeth 23.

[0092] The first main trunk portion 24a has a substantially isosceles trapezoidal shape in the bottom view of the zipper teeth 23 ( Figure 3 ). The neck portion 24c has a shape that tapers in the middle and can engage with the engaging head portions 24d of the two zipper teeth 23 that are the engaging counterparts.

[0093] The first fin portion 24b extends outward from the first main trunk portion 24a in the left and right directions and is formed with a thickness smaller than that of the first main trunk portion 24a across the first step portion 24e. The first fin portion 24b includes a base end portion connected to the first main trunk portion 24a and a tip end portion (outer side edge portion) disposed on the outer side in the left and right directions of the first fin portion 24b.

[0094] In each zipper tooth 23, the outer side end surface of the first fin portion 24b facing the outer side in the width direction contacts the sewing portion 12. Thus, when the slider 40 slides, for example, the contact between the slider 40 and the bobbin thread of the sewing portion 12 can be reduced, so that the wear or breakage of the bobbin thread due to contact with the slider 40 can be suppressed. In addition, the aesthetic appearance (appearance quality) of the product can be improved.

[0095] The base end portion of the first fin portion 24b is formed such that its dimension in the front-rear direction is smaller than the outer side edge portion of the tooth base 23a connected to the fin portion 23b. Moreover, the dimension of the first fin portion 24b in the front-rear direction gradually decreases as it goes from the base end portion of the fin portion 23b to the tip end portion. By forming the first fin portion 24b in this way, it is possible to easily ensure a relatively large clearance area 31 for the sewing needle of the sewing machine to penetrate the fabric 10 and the zipper tape 22 during the sewing process described later. Therefore, it is possible to prevent or suppress contact between the sewing needle and the zipper teeth 23 during sewing, making it difficult for the sewing needle to break.

[0096] In addition, for example, as shown in Embodiment 2 described later and Figure 7 the first fin portion 24b of this Embodiment 1 may also have a first inclined portion where the thickness dimension of the first fin portion 24b gradually decreases toward the outer side in the left and right directions.

[0097] As Figure 2As shown, the second chain tooth part 25 includes: a second main trunk part 25a that is directly fixed to the zipper tape 22; a second fin part 25b that extends outward from the second main trunk part 25a in the left and right directions; and a chain tooth head part 25c that extends inward from the second main trunk part 25a in the left and right directions. The chain tooth head part 25c has a shape in which the dimension in the tape length direction gradually decreases in two stages toward the tip part of the chain tooth head part 25c.

[0098] The second fin part 25b extends outward from the second main trunk part 25a in the left and right directions and is formed with a thickness dimension smaller than that of the second main trunk part 25a with the second step part 25d interposed therebetween. The outer side end surface of the second fin part 25b facing the outer side in the width direction is in contact with the tooth chain tape mounting edge part 11 (particularly the double layer part 15) of the fabric 10. In addition, the state in which the second fin part 25b of the zipper chain teeth 23 is in contact with the tooth chain tape mounting edge part 11 of the fabric 10 is maintained by a sewing part 12 arranged linearly along the front and rear directions.

[0099] Thus, the part of the zipper tape 22 that is outside the zipper chain teeth 23 in the left and right directions can be stably covered by the tooth chain tape mounting edge part 11. Therefore, it is possible to prevent the zipper tape 22 from being exposed within the range between the zipper chain teeth 23 and the zipper-attached member 10 in the left and right directions.

[0100] In the zipper chain teeth 23 of the first embodiment, the second fin part 25b has a shape that is symmetric with the first fin part 24b in the up and down directions with respect to the zipper tape 22. Therefore, the shape of the second fin part 25b will be simply described below.

[0101] The base end part of the second fin part 25b is formed such that the dimension in the front and rear directions is smaller than the outer side edge part of the chain tooth base 23a connected to the fin part 23b. The dimension of the second fin part 25b in the front and rear directions gradually decreases as it goes from the base end part of the fin part 23b toward the tip part. In addition, for example, as shown in the following embodiment 2 and Figure 7 As shown, the second fin part 25b of the first embodiment may also have a second inclined part in which the thickness dimension of the second fin part 25b gradually decreases toward the outer side in the left and right directions.

[0102] The fin part 23b of the first embodiment having the first fin part 24b and the second fin part 25b as described above is formed with a thickness that can be inserted into the tape insertion gap 47 of the slider 40. More specifically, in the tape insertion gap 47, the second fin part 25b can be inserted into the gap between the surface of the zipper tape 22 and the lower surface of the upper flange 45, and the first fin part 24b can be inserted into the gap between the back surface of the zipper tape 22 and the upper surface of the lower flange 46. The first step part 24e and the second step part 25d of the zipper chain teeth 23 are formed so as to be able to slide-contact with the upper flange 45 and the lower flange 46 of the slider 40, respectively.

[0103] Here, regarding the zipper chain tape 21 of the first embodiment 1, as Figure 3 shown, the region in the front - rear direction defined by the maximum interval on the zipper tape 22 between two adjacent zipper teeth 23 in the front - rear direction is defined as the clearance region 31. In addition, the region where the zipper teeth 23 are provided and formed between the two clearance regions 31 is defined as the tooth region 32. Such a clearance region 31 and a tooth region 32 are arranged so as to extend over the entire left - right direction of the zipper chain tape 21.

[0104] In at least a part of the region in the front - rear direction in the zipper chain tape 21 of the first embodiment 1, the interlaced portion 13 of the sewing portion 12 is provided only in the clearance region 31 and not in the tooth region 32. As a result, the sewing portion 12 can be formed in a straight line or substantially straight line along the front - rear direction as described above, and can easily contact the first fin portion 24b of the zipper teeth 23 in the tooth region 32. Furthermore, thereby, on the upper surface side of the zipper tape 22, the tooth - chain - tape mounting edge portion 11 of the fabric 10 can be fixed to the zipper tape 22 at a position where it contacts the second fin portion 25b of the zipper teeth 23 through the sewing portion 12.

[0105] Regarding the zipper 20 of the first embodiment 1, Figure 5 The cross - sectional view when observing the zipper tape 22 in a cross - section orthogonal to the tape length direction is shown in a state (condition) where, when the left - and - right tooth rows 27 are inserted into the tooth guiding path of the slider 40, the side surface of the tooth base 23a of the zipper teeth 23 facing the outside in the left - right direction at the shoulder - side end of the slider body 41 does not contact the inner wall surfaces of the upper flange 45 and the lower flange 46 of the slider 40. In addition, in Figure 5 in order to more easily judge the relationship between the zipper teeth 23 and the slider 40, the illustration of the fabric 10 (tooth - chain - tape mounting edge portion 11) and the sewing portion 12 is omitted.

[0106] Here, the state where the side surface of the tooth base 23a does not contact the inner wall surfaces of the upper flange 45 and the lower flange 46 of the slider 40 ( Figure 5 the state) means, for example, a normal state such as a state where no lateral pulling force that pulls the left - and - right zipper tapes 22 outward in the tape width direction is applied to the zipper 20. Hereinafter, in order to avoid a long - winded explanation, there are cases where the state where the side surface of the tooth base 23a of the zipper teeth 23 does not contact the inner wall surfaces of the upper flange 45 and the lower flange 46 of the slider 40 in a cross - section orthogonal to the tape length direction at the shoulder - side end of the slider body 41 is abbreviated as Figure 5 the state or Figure 5 the state shown.

[0107] In this Figure 5In the state shown, the side surface of the base portion 23a of the zipper teeth 23 is arranged in a separated manner from the inner wall surfaces of the upper flange 45 and the lower flange 46 of the slider 40 in the tape width direction of the zipper tape 22. In addition, the base portion 23a of the teeth can be arranged so as to be away from the connecting post 44 of the slider body 41, or can also be arranged in contact with the connecting post 44.

[0108] The zipper teeth 23 of the first embodiment are formed in the following manner: When observing the positional relationship between the fin portions 23b of the zipper teeth 23 and the upper flange 45 and the lower flange 46 of the slider body 41 in the Figure 5 state, the tip portions of the fin portions 23b (that is, the tip portions of both the first fin portion 24b and the second fin portion 25b) are located at positions outside the slider body 41 compared to the positions of the inner wall surfaces of the upper flange 45 and the lower flange 46. In this case, the first step portion 24e and the second step portion 25d of the zipper teeth 23 are located at positions inside the slider body 41 compared to the inner wall surfaces of the upper flange 45 and the lower flange 46.

[0109] In addition, in the first embodiment, the inner wall surface of the upper flange 45 is the wall surface of the upper flange 45 facing the tooth guiding path, and the inner wall surface of the lower flange 46 is the wall surface of the lower flange 46 facing the tooth guiding path. Further, the outer wall surfaces of the upper flange 45 and the lower flange 46 are, for example, the wall surfaces of the upper flange 45 and the lower flange 46 arranged on the opposite side of the inner wall surface in the tape width direction or the width direction of the slider 40.

[0110] In Figure 5 the state, the fin portions 23b of the zipper teeth 23 are positioned relative to the inner wall surfaces of the upper flange 45 and the lower flange 46 of the slider body 41 as described above, whereby the fin portions 23b can stably enter the insertion gap 47 of the slider body 41. Thereby, the fin portions 23b can occupy a part of the region of the insertion gap 47 from the side of the tooth guiding path, so that when the slider 40 slides on the zipper 20, it is difficult for the tooth chain tape mounting edge portion 11 (especially the double layer portion 15) of the fabric 10 to enter the insertion gap 47 of the slider body 41. In addition, it is preferably in Figure 5In the state of , the thickness of the second fin portion 25b accounts for approximately 80% of the gap (in the thickness direction) between the surface of the zipper tape 22 and the lower surface of the upper flange 45 in the insertion gap 47. And / or, preferably, the thickness of the first fin portion 24b accounts for approximately 80% of the gap (in the thickness direction) between the back surface of the zipper tape 22 and the upper surface of the lower flange 46 in the insertion gap 47. And / or, preferably, the thickness dimension from the upper surface of the second fin portion 25b to the lower surface of the first fin portion 24b accounts for approximately 80% of the thickness dimension of the insertion gap 47. Thus, when the slider 40 slides on the zipper 20, it is difficult for the chain tape mounting edge portion 11 of the fabric 10 (especially the double layer portion 15) to enter the insertion gap 47 of the slider body 41.

[0111] Therefore, it is possible to prevent or suppress the chain tape mounting edge portion 11 from getting stuck in the slider body 41 and causing biting when the slider 40 slides. In addition, in Figure 5 the state shown, the tip portion of the fin portion 23b of the zipper teeth 23 is located at a position inside the slider body 41 with respect to the outer wall surfaces of the upper flange 45 and the lower flange 46 of the slider body 41.

[0112] In addition, preferably, the tip portion of the fin portion 23b is located at a position outside the slider body 41 with respect to the center position in the tape width direction of the upper flange 45 and the lower flange 46. Thus, it is possible to more effectively prevent or suppress the chain tape mounting edge portion 11 from getting stuck in the slider body 41 and causing biting when the slider 40 slides.

[0113] For example, in the present Embodiment 1, the dimension in the tape width direction from the inner wall surface to the outer wall surface of the upper flange 45 and the lower flange 46 of the slider body 41 is set to 1.36 mm. In this case, the centers of the upper flange 45 and the lower flange 46 in the tape width direction are arranged at positions 0.68 mm away from the inner wall surface and the outer wall surface of the upper flange 45 and the lower flange 46 respectively in the tape width direction. In addition, in Figure 5 the state shown, the distance in the tape width direction between the position of the tip portion of the fin portion 23b and the positions of the outer wall surfaces of the upper flange 45 and the lower flange 46 is 0.62 mm. Therefore, in the present Embodiment 1, the tip portion of the fin portion 23b is located at a position outside the slider body 41 with respect to the center position in the tape width direction of the upper flange 45 and the lower flange 46.

[0114] As Figure 1 shown, in the present Embodiment 1, the maximum dimension in the tape width direction of the left and right two zipper teeth 23 that are engaged with each other in the state where the left and right pair of tooth rows 27 are engaged is defined as "tooth maximum width W1". In addition, the total value of the dimensions W2 of the fin portions 23b of these two zipper teeth 23 in the tape width direction is defined as "total fin width".

[0115] In the case where the maximum width W1 of the teeth and the total fin width are defined as described above, the fin portion 23b of the first embodiment is formed in such a size that the ratio of the total fin width to the maximum width W1 of the teeth is less than 40%. For example, in the case of the zipper teeth 23 of the first embodiment, the maximum width W1 of the teeth is 7.61 mm, and the total fin width is 2 mm. Therefore, the ratio of the total fin width to the maximum width W1 of the teeth is 26%.

[0116] Any zipper teeth 23 having a fin portion 23b with a ratio of the total fin width to the maximum width W1 of the teeth less than 40% can prevent the fin portion 23b from being too long in the belt width direction, and can minimize the influence of the fin portion 23b on the aesthetics and appearance quality of the zipper 20 and the garment 1 with the zipper. Therefore, it is possible to easily manufacture a garment 1 with excellent design or high appearance quality.

[0117] In addition, in the present utility model, the shape of the zipper teeth 23 other than the fin portion 23b is not particularly limited as long as it has a shape that can engage the left and right tooth rows 27. For example, the zipper teeth may have a shape that is symmetric in the vertical direction with respect to the zipper tape as a reference.

[0118] Next, a method for manufacturing a garment 1 with a zipper by attaching the zipper tape 21 of the zipper 20 to the tape attachment edge portion 11 of the fabric 10 will be described.

[0119] First, a sewing process (sewing) for sewing the zipper tape 22 of the zipper tape 21 and the tape attachment edge portion 11 of the fabric 10 is performed using a sewing machine.

[0120] In addition, in the following description of the sewing machine and the sewing process, the front-rear direction is the conveying direction of the sewing machine, which is the direction along which the zipper tape 21 and the fabric 10 as sewing objects are conveyed. In this case, the direction of conveying the sewing objects is set as the front, and the opposite direction is set as the rear. The up-down direction is the direction along which the sewing machine needle reciprocates. In this case, the direction in which the sewing machine needle penetrates the sewing object is set as the lower side, and the direction in which the sewing machine needle is withdrawn from the sewing object is set as the upper side. The left-right direction is the direction orthogonal to the conveying direction of the sewing object and orthogonal to the direction in which the sewing machine needle reciprocates.

[0121] A sewing machine (not shown) used in the sewing process of the first embodiment includes: a needle plate portion on which an object to be sewn is placed; a needle bar supported so as to be reciprocally movable in the vertical direction with respect to the needle plate portion; a sewing machine needle held by the needle bar; a sewing machine presser foot that presses the object to be sewn toward the needle plate portion; a conveying gear that conveys the zipper chain tape 21; and a bobbin portion provided below the needle plate portion. In this case, the needle bar, the sewing machine needle, the sewing machine presser foot, and the hook portion of the sewing machine are substantially the same as those of a conventional general sewing machine.

[0122] The needle plate portion includes: a base portion having a flat surface; and a guide groove portion provided concave with respect to the flat surface of the base portion. The guide groove portion is continuously formed in the front-rear direction so that the tooth row 27 of the zipper chain tape 21 can be inserted and guided.

[0123] The conveying gear is formed by a spur gear having a plurality of teeth provided on its outer peripheral portion. The tooth pitch in the conveying gear is set to be the same size as or slightly larger than the forming pitch in the front-rear direction of the zipper teeth 23 forming the tooth row 27.

[0124] The conveying gear is arranged along the front-rear direction of the sewing machine, and the rotation shaft of the conveying gear is held at a position below the needle plate portion by a gear holding portion (not shown). The conveying gear is rotated by a rotation driving portion (not shown) having a servo motor or a stepping motor. In addition, the conveying gear is arranged at a position where at least one tooth of the conveying gear always protrudes into the guide groove portion.

[0125] In the case of performing a sewing process including sewing the zipper chain tape 21 to the fabric 10 using the above sewing machine, first, the tooth row 27 of the zipper chain tape 21 is introduced into the guide groove portion of the needle plate portion, and the zipper tape 22 is placed on the base portion of the needle plate portion. At this time, the tooth row 27 is engaged with the teeth of the conveying gear protruding into the guide groove portion of the needle plate portion.

[0126] Furthermore, the fabric 10 is placed on the needle plate portion while aligning the fabric 10 with the zipper chain tape 21 so as to cover the zipper chain tape 21 from above. Then, by lowering the sewing machine presser foot, the zipper chain tape 21 and the fabric 10 are clamped and held between the sewing machine presser foot and the needle plate portion. At this time, the tooth chain tape mounting edge portion 11 of the fabric 10 remains in a flat state, and a U-shaped double layer portion 15 has not yet been formed in the tooth chain tape mounting edge portion 11.

[0127] Next, by operating the sewing machine, the conveying gear rotates to convey the zipper chain tape 21, and the sewing machine needle moves up and down in the vertical direction. At this time, the fabric 10 is conveyed together with the zipper chain tape 21. As a result, the sewing machine needle can pierce the fabric 10 and the zipper tape 22 for flat sewing, so that the sewing portion 12 formed by the sewing thread (upper thread and bobbin thread) is formed in a straight line or substantially straight line along the front-rear direction, and the fabric 10 and the zipper tape 22 are sewn together through the sewing portion 12.

[0128] Here, the position (needle drop position) where the sewing machine needle pierces the fabric 10 and the zipper tape 22 will be described. In the present embodiment, the sewing machine needle pierces the fabric 10 and the zipper tape 22 at a position in the front-rear direction with respect to the zipper chain tape 21 and within the gap region 31 formed between the zipper teeth 23. In addition, the needle drop position of the sewing machine needle is set at a position outside the fin portion 23b of the zipper teeth 23 in the left-right direction, or at a position where at least a part thereof overlaps with the outer side edge portion of the fin portion 23b.

[0129] In this case, preferably, the needle drop position of the sewing machine needle is set at the central portion between two adjacent zipper teeth 23 in the front-rear direction. In addition, the needle drop position is not limited to the central portion between the zipper teeth 23, and may be set at a position close to one of the two zipper teeth 23 as long as it is within the gap region 31. In addition, the needle drop position may be at only one part or at two or more parts within each gap region 31.

[0130] By piercing the fabric 10 and the zipper tape 22 with the sewing machine needle at the needle drop position as described above, it is possible to prevent the sewing machine needle that moves up and down during the sewing process from contacting the zipper teeth 23. In addition, during the sewing process, a straight or substantially straight sewing portion 12 can be stably formed, and the sewing portion 12 can be brought into contact with the outer side end surface of the first fin portion 24b of the zipper teeth 23.

[0131] In this case, in the sewing machine (not shown) of the present embodiment, the conveying gear always rotates in mesh with the zipper chain tape 21, so that the position of the zipper chain tape 21 can be accurately controlled by the conveying gear while the zipper chain tape 21 is stably conveyed. As a result, it is possible to suppress the pitch of the zipper teeth 23 from deviating with respect to the up-and-down movement of the sewing machine needle. In addition, the up-and-down movement of the sewing machine needle and the rotation of the conveying gear can be controlled to match each other, so that it is easy to adjust the position where the sewing machine needle pierces the zipper tape 22.

[0132] In addition, in the present embodiment, the conveying gear meshes with the zipper chain tape 21 from the lower side of the zipper chain tape 21, but the conveying gear may also mesh with the zipper chain tape 21 from the lateral direction of the zipper chain tape 21 (for example, the width direction of the sewing machine).

[0133] By performing the sewing process as described above, a sewing portion 12 can be formed in which the interlaced portion 13 is provided only in the gap region 31 of the zipper chain tape 21, and the zipper tape 22 of the zipper chain tape 21 and the chain tape mounting edge portion 11 of the fabric 10 are sewn together.

[0134] After the above-described sewing process is performed, a bending process is performed to form a double layer portion 15 by bending the chain tape mounting edge portion 11 of the fabric 10.

[0135] In this bending process, the chain tape mounting edge portion 11 of the fabric 10 is bent along the sewing portion 12 formed in a straight line or substantially straight line so that the first strip portion 16 and the second strip portion 18 of the chain tape mounting edge portion 11 overlap vertically. Thus, a double layer portion 15 is formed in the chain tape mounting edge portion 11 of the fabric 10, and the fabric 10 with the zipper chain tape 21 sewn thereon as shown in Figures 2 - 4 is produced.

[0136] At this time, the zipper chain tape 21 is sewn to the first strip portion 16 of the double layer portion 15, and the bent portion 17 of the double layer portion 15 contacts the fin portion 23b (second fin portion 25b) of the zipper tooth 23. Moreover, a part of the sewing portion 12 is held in a state of being surrounded by the double layer portion 15. On the upper side of the sewing portion 12, the second strip portion 18 of the double layer portion 15 is disposed so as to cover the sewing portion 12, so that the sewing portion 12 is blocked by the second strip portion 18 and cannot be seen from the upper surface (outer surface) side of the chain tape mounting edge portion 11.

[0137] In addition, in the present Embodiment 1, it is preferable that the overall thickness dimension of the double layer portion 15 in the vertical direction is larger than the interval of the insertion gap 47 provided in the slider body 41. Thereby, it is possible to make it more difficult for the double layer portion 15 of the chain tape mounting edge portion 11 to enter the insertion gap 47 of the slider body 41, and thus it is possible to effectively prevent or suppress the chain tape mounting edge portion 11 from getting stuck in the slider body 41 and causing biting.

[0138] Then, the fabrics 10 with the zipper chain tapes 21 sewn thereon are combined in groups of two, and the slider 40 is attached to the tooth row 27 of the zipper chain tapes 21 of the group, thereby producing a fabric 10 with a zipper. By using the fabric 10 with a zipper to form the clothing 1, a clothing 1 with a zipper is manufactured.

[0139] In addition, in the present utility model, the method for manufacturing the clothing 1 with a zipper is not particularly limited.

[0140] In the zipped garment 1 of the first embodiment manufactured as described above, the linear or substantially linear sewing portion 12 that stitches the zipper tape 21 and the fabric 10 can stably contact the first fin portion 24b of the zipper teeth 23 (see Figure 2 and Figure 4 ). Additionally, thereby, on the surface side of the garment 1, for example, as shown in Figure 4 , the position of the tape mounting edge portion 11 (especially the double-layer portion 15) of the fabric 10 is fixed by the sewing portion 12, so that the state where the tape mounting edge portion 11 contacts the second fin portion 25b of the zipper teeth 23 can be stably maintained. As a result, it is possible to prevent the zipper tape 22 from being exposed to the outside between the zipper teeth 23 and the fabric 10 in the left-right direction.

[0141] Further, in the zipper 20 of the first embodiment, the fin portions 23b of the respective zipper teeth 23 are formed shorter in the left-right direction such that the ratio of the above-mentioned total fin width to the maximum width W1 of the teeth is less than 40%. Thereby, the influence exerted by the fin portions 23b of the zipper teeth 23 on the aesthetics and appearance quality of the zipper 20 and the zipped garment 1 can be suppressed to a small extent. Also, the size of the portion of the zipper tape 22 exposed between the zipper teeth 23 adjacent in the front-back direction can be made smaller.

[0142] Therefore, in the garment 1 equipped with the zipper 20 according to the first embodiment, the portion where the zipper tape 22 is exposed to the outside can be reduced. Additionally, it is difficult for the fin portions 23b of the zipper teeth 23 to be conspicuous in the appearance of the zipper 20. Thereby, it is difficult for the design and appearance quality, etc. of the garment 1 to be impaired by the zipper tape 22 and the zipper teeth 23, so the zipped garment 1 can have excellent design or high appearance quality.

[0143] Moreover, when the zipper 20 is held in the state shown in Figure 5 , the tip portions of the fin portions 23b of the zipper teeth 23 are, as described above, located at positions outside the puller body 41 with respect to the inner wall surfaces of the upper flange 45 and the lower flange 46 of the puller body 41. In particular, in the first embodiment, the tip portions of the fin portions 23b are located at positions outside the puller body 41 with respect to the center position in the tape width direction of the upper flange 45 and the lower flange 46.

[0144] Thereby, even when the fin portions 23b of the zipper teeth 23 contact the tape mounting edge portion 11 of the fabric 10 as in the first embodiment, the fin portions 23b are inserted into the insertion gap 47 of the puller body 41 and fill a part of the space portion thereof, so that it is difficult for the tape mounting edge portion 11 of the fabric 10 to enter the insertion gap 47 of the puller body 41.

[0145] Therefore, it is possible to prevent or suppress the engagement of the installation edge portion 11 of the dental chain tape with the slider body 41 and the resulting biting-in when the slider 40 slides. Therefore, even when the exposed portion of the zipper tape 22 is reduced by bringing the installation edge portion 11 of the dental chain tape into contact with the zipper teeth 23 as described above, the proper operability of the slider 40 can be stably ensured, and the slider 40 can slide smoothly along the tooth row 27.

[0146] (Embodiment 2)

[0147] Figure 6 is a plan view schematically showing the main part of the zippered product according to the second embodiment. Figure 7 is schematically showing Figure 6 a cross-sectional view of the section taken along the line VII-VII shown in the figure. In addition, Figure 7 the illustration of the sewing portion is omitted.

[0148] The zippered product 2 of the second embodiment is the clothing 2 in the same manner as the foregoing first embodiment. The zippered clothing 2 of the second embodiment includes: a zipper 60 having a pair of left and right zipper chain tapes 61; and a zipper mounting member 10 (fabric 10) having left and right chain tape mounting edge portions 11 for mounting the left and right zipper chain tapes 61.

[0149] When compared with the zippered clothing 1 described in the foregoing first embodiment, the zippered clothing 2 of the second embodiment is formed such that the shapes and sizes of the fin portions 63b of the respective zipper teeth 63 are different. In addition, except for the above-mentioned differences related to the fin portions 63b, the zippered clothing 2 of the second embodiment is formed substantially in the same manner as the zippered clothing 1 described in the foregoing first embodiment.

[0150] Therefore, in the description related to the second embodiment, for the parts and components that are formed substantially in the same manner as those of the zippered clothing 1 described in the foregoing first embodiment, the same reference numerals as those in the first embodiment are used, and thus the detailed description thereof is omitted.

[0151] The zipper 60 of the second embodiment includes: a pair of left and right zipper chain tapes 61 formed with tooth rows 67 at the tape side edge portions of the zipper tape 22; and a slider 40 slidably mounted on the left and right tooth rows 67. In the second embodiment, the left and right zipper tapes 22 are respectively mounted on the chain tape mounting edge portions 11 of the left and right fabrics 10 by the same sewing portion (not shown) as in the foregoing first embodiment.

[0152] Each of the left and right zipper chain tapes 61 includes a zipper tape 22 and a plurality of synthetic resin zipper teeth 63 forming a row of teeth 67. Each zipper tooth 63 includes at least: a tooth base 63a having a portion with a constant thickness dimension; and a fin portion 63b extending outward from the tooth base 63a in the left and right direction.

[0153] The fin portion 63b includes: a first fin portion 64b on the lower surface side, which is formed with a thickness dimension smaller than that of the tooth base 63a across a stepped portion and is formed on the back surface of the zipper tape 22; and a second fin portion 65b on the upper surface side, which is formed on the surface of the zipper tape 22. The first fin portion 64b and the second fin portion 65b of the fin portion 63b have shapes that are symmetric with each other in the up and down direction with respect to the zipper tape 22. The fin portion 63b including the first fin portion 64b and the second fin portion 65b is formed with a thickness that can be inserted into the tape insertion gap 47 of the slider 40.

[0154] Each zipper tooth 63 of the present Embodiment 2 includes: a first tooth portion 64 disposed on the back side of the zipper tape 22; and a second tooth portion 65 disposed on the front side of the zipper tape 22.

[0155] The first tooth portion 64 includes: a first main body portion 64a fixed to the zipper tape 22; a first fin portion 64b extending outward from the first main body portion 64a in the left and right direction; a neck portion (not shown) extending inward from the first main body portion 64a in the left and right direction; and an engaging head portion (not shown) further extending inward from the neck portion in the left and right direction.

[0156] The first fin portion 64b extends outward from the first main body portion 64a in the left and right direction and is formed with a thickness dimension smaller than that of the first main body portion 64a across a first stepped portion 64e. The outer side end surface of the first fin portion 64b facing the outer side in the width direction contacts the sewing portion.

[0157] The base end portion of the first fin portion 64b is formed with a dimension in the front and rear direction smaller than the outer side edge portion of the tooth base 63a. Moreover, the dimension of the first fin portion 64b in the front and rear direction gradually decreases as it extends from the base end portion of the fin portion 63b toward the tip end portion. By forming the first fin portion 64b in this way, it is possible to easily ensure a relatively large gap area for the sewing needle of the sewing machine to penetrate the fabric 10 and the zipper tape 22 in the sewing process.

[0158] As Figure 7As shown, the first fin portion 64b of the second embodiment has a first inclined portion 64f in which the thickness dimension of the first fin portion 64b gradually decreases toward the outside in the left - right direction. By means of this first inclined portion 64f, for example, even when the sewing portion (bobbin thread) is temporarily overlapped in the up - down direction on the first fin portion 64b during sewing, it is possible to cause the sewing portion to move toward the outside in the left - right direction, and it is easy to dispose the sewing portion at a position outside the first fin portion 64b in the left - right direction. As a result, it is possible to easily bring the sewing portion into contact with the outer side end surface of the first fin portion 64b.

[0159] As Figure 2 shown, the second chain tooth portion 65 includes: a second main body portion 65a directly fixed to the zipper tape 22; a second fin portion 65b extending from the second main body portion 65a toward the outside in the left - right direction; and a chain tooth head portion extending from the second main body portion 65a toward the inside in the left - right direction.

[0160] The second fin portion 65b extends from the second main body portion 65a toward the outside in the left - right direction and is formed so as to have a thickness dimension smaller than that of the second main body portion 65a with a second step portion 65d interposed therebetween. The outer side end surface of the second fin portion 65b facing the outside in the width direction is in contact with the tooth chain tape mounting edge portion 11 (particularly the double - layer portion 15) of the fabric 10. The state in which the second fin portion 65b of the zipper chain tooth 63 is in contact with the tooth chain tape mounting edge portion 11 of the fabric 10 is maintained by a sewing portion formed along the front - back direction.

[0161] In the zipper chain tooth 63 of the second embodiment, the second fin portion 65b has a shape symmetric with respect to the first fin portion 64b in the up - down direction with the zipper tape 22 as a reference. Therefore, the base end portion of the second fin portion 65b is formed so that the dimension in the front - back direction is smaller than the outer side edge portion of the chain tooth base portion 63a. In addition, the dimension of the second fin portion 65b in the front - back direction gradually decreases as it goes from the base end portion of the fin portion 63b toward the tip end portion.

[0162] The second fin portion 65b of the second embodiment has a second inclined portion 65e in which the thickness dimension of the second fin portion 65b gradually decreases toward the outside in the left - right direction. Thereby, it is possible to make it difficult for the first strip portion 16 of the double - layer portion 15 to overlap the second fin portion 65b in the up - down direction.

[0163] Regarding the zipper 60 of the second embodiment, Figure 7A cross-sectional view of the slide fastener tape 22 taken along a plane perpendicular to the tape length direction, as observed in a state where the left and right row of teeth 67 of the slide fastener 60 are inserted into the tooth guiding path of the slider 40, and the side surfaces of the tooth bases 63a of the slide fastener teeth 63 facing the outer sides in the left and right directions at the shoulder side end of the slider body 41 do not contact the inner wall surfaces of the upper flange 45 and the lower flange 46 of the slider 40. Also, similar to the aforementioned Embodiment 1, in this Embodiment 2, there is a case where the above-described state is abbreviated as Figure 7 or Figure 7 the state shown.

[0164] The slide fastener teeth 63 of this Embodiment 2 are formed in the following manner: When observing the positional relationship between the fin portions 63b of the slide fastener teeth 63 and the upper flange 45 and the lower flange 46 of the slider body 41 in the state shown in Figure 7 , the tip portions of the fin portions 63b are located at positions outside the slider body 41 with respect to the inner wall surfaces of the upper flange 45 and the lower flange 46. In this case, the first step portion 64e and the second step portion 65d of the slide fastener teeth 63 are located at positions inside the slider body 41 with respect to the inner wall surfaces of the upper flange 45 and the lower flange 46.

[0165] Moreover, in this Embodiment 2, the tip portions of the fin portions 63b are formed in such a manner that in the state shown in Figure 7 , the tip portions are located at positions outside the slider body 41 with respect to the outer wall surfaces of the upper flange 45 and the lower flange 46. That is, the fin portions 63b of this Embodiment 2 are formed longer in the tape width direction from the tooth base 63a than the fin portions 23b of the aforementioned Embodiment 1.

[0166] Since the fin portions 63b are formed in such a manner as to be located at positions outside the slider body 41 with respect to the outer wall surfaces of the upper flange 45 and the lower flange 46 as described above, it is possible to stably prevent the tooth chain tape mounting edge portion 11 (double layer portion 15) of the fabric 10 from entering the insertion gap 47 of the slider body 41 when the slider 40 slides on the slide fastener 60.

[0167] Also, in this Embodiment 2, similar to the aforementioned Embodiment 1, when the maximum tooth width W1 and the total fin width are defined, the fin portions 63b of this Embodiment 2 are formed such that the ratio of the total fin width to the maximum tooth width W1 is less than 40%. Specifically, in the case of this Embodiment 2, the ratio of the total fin width to the maximum tooth width W1 is 38%. Thereby, it is possible to prevent the fin portions 63b from being formed too long in the tape width direction, and it is possible to suppress the influence exerted by the fin portions 63b on the aesthetics and appearance quality of the slide fastener 60 and the clothing 2 with the slide fastener to a small extent.

[0168] Such a zipped product 2 of the second embodiment can be manufactured by substantially the same method as that for manufacturing the zipped product 1 of the foregoing first embodiment.

[0169] In the zipped garment 2 of the second embodiment as described above, the position of the fastener tape mounting edge portion 11 of the fabric 10 can be fixed by the sewing portion where the fastener tape 61 and the fabric 10 are sewn together, and the state where the fastener tape mounting edge portion 11 is in contact with the second fin portion 65b of the fastener teeth 63 can be stably maintained. Thereby, it is possible to prevent the fastener tape 22 from being exposed to the outside between the fastener teeth 63 and the fabric 10 in the left-right direction.

[0170] Moreover, the fin portions 63b of the respective fastener teeth 63 are formed such that the ratio of the total fin width to the maximum width W1 of the teeth is less than 40%. Therefore, the influence exerted by the fin portions 63b of the fastener teeth 63 on the aesthetics and appearance quality of the fastener 60 and the zipped garment 2 can be suppressed to a small extent. Therefore, according to the zipped garment 2 of the second embodiment, it is possible to make it difficult for the design and appearance quality of the garment 2 to be impaired by the fastener tape 22 and the fastener teeth 63.

[0171] Moreover, when the fastener 60 is held in the Figure 7 state shown, the tip portions of the fin portions 63b of the fastener teeth 63 are located at positions outside the fastener body 41 with respect to the outer wall surfaces of the upper flange 45 and the lower flange 46 of the slider body 41.

[0172] Thereby, even when the fin portions 63b of the fastener teeth 63 are in contact with the fastener tape mounting edge portion 11 of the fabric 10 as shown in the second embodiment, it is possible to prevent the fastener tape mounting edge portion 11 of the fabric 10 from entering the insertion gap 47 of the slider body 41. Therefore, it is possible to stably prevent the fastener tape mounting edge portion 11 from getting stuck in the slider body 41 and causing biting when the slider 40 slides.

[0173] In addition, in the above-described first and second embodiments, the sewing portions 12 on the back side of the garments 1 and 2 are provided in contact with the first fin portions 24b and 64b of the fastener teeth 23 and 63. However, in the present utility model, the sewing portion on the back side of the garment may also be provided at a position slightly separated from the first fin portion of the fastener teeth. Even in such a case, it is possible to fix the position of the fastener tape mounting edge portion (double layer portion) on the front side of the garment by the sewing portion and maintain the state where the fastener tape mounting edge portion is in contact with or close to the second fin portion of the fastener teeth. Therefore, it is possible to prevent or suppress the fastener tape from being exposed to the outside between the fastener teeth and the fabric.

[0174] In addition, the present utility model is not limited to Embodiment 1 and Embodiment 2 described above. As long as it has a structure substantially the same as that of the present utility model and achieves the same effects, various changes can be made.

[0175] For example, in the zippers 20 and 60 of Embodiment 1 and Embodiment 2, the zipper teeth 23 and 63 are provided in independent shapes on the zipper tape 22 by injection molding of synthetic resin. However, in the present utility model, instead of using synthetic resin zipper teeth, a plurality of metal zipper teeth formed in independent shapes can be provided on the zipper tape to form a zipper chain tape and a zipper.

Claims

1. A zipper, the zipper (20, 60) comprising: A pair of zipper chain tapes (21, 61), wherein a plurality of zipper chain teeth (23, 63) are provided on a zipper tape (22) to form a chain tooth row (27, 67); and a slider (40) slidably mounted on the chain tooth row (27, 67), characterized in that: The slider (40) has a slider body (41), which includes: an upper wing plate (42) and a lower wing plate (43), wherein the upper wing plate (42) and the lower wing plate (43) are arranged in a manner separated from each other; a connecting column (44) connecting the upper wing plate (42) and the lower wing plate (43); and flanges (45, 46) extending from a side edge portion of at least one of the upper wing plate (42) and the lower wing plate (43). The slider body (41) is provided with: a tooth guide path formed in a Y shape between the upper wing plate (42) and the lower wing plate (43); a pair of shoulder openings provided on the side of the connecting column (44) with the connecting column (44) in between; and an insertion gap (47) provided on the side edge of the slider body (41) and connected to the tooth guide path. Each of the zipper elements (23, 63) includes: an element base (23a, 63a) having a portion with a constant size in the tape thickness direction of the zipper tape (22); and a fin portion (23b, 63b) extending from the element base (23a, 63a) toward the inner side of the tape of the zipper tape (22), and having a size in the tape thickness direction that is smaller than that of the element base (23a, 63a) via a step portion. When observing a cross section of the zipper tape (22) perpendicular to the length direction of the tape at the shoulder side end of the slider body (41) where the chain element row (27, 67) is inserted into the chain element guide path, the top end of the fin portion (23b, 63b) is located at a position closer to the outside of the slider body (41) than the inner wall surface of the flange (45, 46) when the side surface of the chain element base (23a, 63a) of the zipper chain element (23, 63) facing outward in the left-right direction does not abut against the inner wall surface of the flange (45, 46) of the slider (40). When the maximum value of the dimension of two zipper elements (23, 63) meshed with each other in the direction of the tape width of the zipper tape (22) is specified as the element maximum width (W1) and the total value of the dimension (W2) of the fin portions (23b, 63b) of the two zipper elements (23, 63) in the direction of the tape width is specified as the total fin width, the ratio of the total fin width to the element maximum width (W1) is less than 40%.

2. The zipper according to claim 1, characterized in that: When observing the cross-section of the zipper tape (22) perpendicular to the length direction of the tape at the shoulder side end of the slider body (41), the top end of the fin portion (23b, 63b) is located at a position closer to the outside of the slider body (41) than the center position of the flange (45, 46) in the tape width direction, when the side surface of the chain element base (23a, 63a) of the zipper chain element (23, 63) facing outward in the left and right directions does not abut the inner wall surface of the flange (45, 46) of the slider (40).

3. The zipper according to claim 1, characterized in that: The dimension of the fin portion (23b, 63b) in the length direction of the belt gradually decreases toward the top end of the fin portion (23b, 63b).

4. The zipper according to claim 1, characterized in that: The base end portion of the fin portion (23b, 63b) has a smaller dimension in the belt length direction than the side edge portion of the element base portion (23a, 63a) connected to the fin portion (23b, 63b).

5. The zipper according to claim 1, characterized in that: The dimension of the fin portion (23b, 63b) in the tape thickness direction of the fastener tape (22) gradually decreases toward the top end of the fin portion (23b, 63b).

6. A product with a zipper, characterized in that: include: The slide fastener (20, 60) according to any one of claims 1 to 5; And a zipper mounted component (10), in which the zipper stringer (21, 61) is mounted on a stringer mounting edge (11) through a sewing portion (12) formed by sewing thread.

7. The product with a zipper according to claim 6, characterized in that: The fastener belt mounting edge (11) has a double-layer portion (15) bent into a U-shape when viewed from a cross-sectional view perpendicular to the belt length direction. When viewed from the cross-sectional view, the double-layer portion (15) includes: a first strip portion (16), at least a portion of which is in contact with the zipper tape (22); a bent portion (17) extending from the first strip portion (16) and having a bent shape; and a second strip portion (18) extending from the bent portion (17) and arranged to overlap with the first strip portion (16). A portion of the sewn portion (12) is sandwiched between the first strip portion (16) and the second strip portion (18) in the double-layer portion (15). The double layer portion (15) is fixed to the fastener tape (22) by the sewing portion (12) at a position where it contacts at least a portion of the fastener elements (23, 63).

8. The product with a zipper according to claim 7, characterized in that: The dimension of the double-layered portion (15) in the thickness direction of the tape is larger than the spacing of the insertion gap (47) of the slider (40).

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