Chain component for slide fastener and product with slide fastener

Abstract

The invention provides a chain member for a slide fastener and a product with a slide fastener. A zipper chain member is provided with a linear fixing member (15) and a plurality of elements (40) forming an element row (11), each element (40) having an engaging portion (42) and a body portion (41), and when a pair of left and right zipper element members (10, 10) are bent in an engaged state, when the body portions (41) of adjacent elements (40) of the zipper element members (10) are in contact with each other, the body portions (41) of the adjacent elements (40) of the zipper element members (10) engage with each other. The meshing portions (42) of adjacent elements (40) of the pair of left and right fastener element members (10, 10) are not in contact with each other.

Description

Technical Field

[0001] The present invention relates to a chain component for a zipper and a zippered product having the chain component for a zipper. Background Art

[0002] Generally, zippers are mostly used as opening and closing devices for products such as clothing, daily sundries, industrial materials, and various covers for automobiles, trains, aircraft, etc. Generally, such zippers used in various products have: a pair of left and right zipper chains in which a row of teeth is formed on the side edge portion of the zipper tape; and a slider that slides along the left and right rows of teeth. In addition, as a type of zipper, a zipper provided with a separating insert capable of separating and separating the left and right zipper chains is known.

[0003] Patent Document 1 describes a zippered product that forms a zipper without using a zipper tape, and a separating insert is provided at a specified position of the zipper. Specifically, a plurality of teeth are respectively attached to fixing members to form left and right tooth members, and each tooth member is sewn to the left and right fabrics forming the clothing.

[0004] In addition, Patent Document 1 describes the following: By providing a recess on the side surface portion of the main body portion of the tooth that is disposed opposite to the fabric and along the length direction of the tooth member into which a part of the tooth mounting edge portion of the fabric is inserted, the gap formed between the fixing member and the tooth mounting edge portion of the fabric is reduced, and the appearance in a plan view is improved.

[0005] Prior Art Documents

[0006] Patent Documents

[0007] Patent Document 1: International Publication No. 2018 / 142548 Summary of the Invention

[0008] In such a zippered product described in Patent Document 1, the gap formed between the fixing member and the tooth mounting edge portion of the fabric can be made smaller by deepening the recess, and the appearance is improved. On the other hand, when a pair of engaged tooth members are bent along the length direction, sometimes the main body portions of adjacent teeth enter the recess formed in the main body portion of the tooth, resulting in chain separation in which the engagement of the teeth is released. Therefore, a chain component for a zipper that can prevent the occurrence of chain separation is desired even when a recess into which a part of the tooth mounting edge portion of the fabric is inserted is formed in the tooth.

[0009] The present invention has been made in view of the above problems, and an object thereof is to provide a chain component for a zipper and a zippered product that prevent the occurrence of chain separation in which the engagement of the teeth is released when a pair of engaged rows of teeth are bent along the length direction.

[0010] The above object of the present invention is achieved by the following structure.

[0011] [1] A chain member for a zipper, which has a pair of left and right zipper teeth members (10). The zipper teeth members (10) include a linear fixing member (15) extending in the longitudinal direction, and a plurality of teeth (40) mounted on the fixing member (15) and forming a row of teeth (11). Among them,

[0012] The pair of left and right zipper teeth members (10, 10) can be engaged with each other.

[0013] The teeth (40) have: an engaging portion (42) that engages with the teeth (40) on the opposite side of the engagement; and a main body portion (41) that extends from the engaging portion (42) in the left and right directions and is fixed to the fixing member (15).

[0014] In the main body portion (41), on the anti-engagement portion side opposite to the engaging portion (42) with respect to the fixing member (15), a recess (45) recessed toward the fixing member (15) is provided along the longitudinal direction.

[0015] In a state where the pair of left and right zipper teeth members (10, 10) are engaged, when the pair of left and right zipper teeth members (10, 10) are bent in a direction in which their surfaces or backs face each other along the longitudinal direction on the surface of the teeth (40), when the main body portions (41) of the adjacent teeth (40) of the zipper teeth member (10) come into contact with each other, the engaging portions (42) of the adjacent teeth (40) of the pair of left and right zipper teeth members (10, 10) do not come into contact with each other.

[0016] [2] A zippered product, which includes:

[0017] [1] The chain member for a zipper described above;

[0018] A slider (30) for engaging the pair of left and right zipper teeth members (10, 10); and

[0019] Zipper mounting members (7, 7) for mounting the pair of left and right zipper teeth members (10, 10).

[0020] Advantages of the Invention

[0021] According to the present invention, when a pair of engaged rows of teeth are bent in the longitudinal direction, by bringing the main body portions of the teeth adjacent in the longitudinal direction on the same tooth member into contact with each other, it is possible to prevent the disengagement of the teeth. Brief Description of the Drawings

[0022] Figure 1 is a top view schematically showing the main part of a zippered product according to an embodiment of the present invention.

[0023] Figure 2 is an enlarged view from the back side Figure 1 and schematically shows a bottom view of the main part of the zippered product shown.

[0024] Figure 3 is a cross-sectional view of the zippered product along Figure 1 line A-A.

[0025] Figure 4 is a top view of the main part showing the meshing state of a pair of slider members.

[0026] Figure 5 is showing Figure 1 a perspective view of the slider installed on a fixed member used for the zippered product shown.

[0027] Figure 6 is Figure 5 a top view of the slider shown.

[0028] Figure 7 is Figure 5 a rear view of the slider shown.

[0029] Figure 8 is Figure 5 a right side view of the slider shown.

[0030] Figure 9 is Figure 5 a bottom view of the slider shown.

[0031] Figure 10 is a front view of the main part showing the slider members in a meshing state bent along the length direction.

[0032] Figure 11 is Figure 10 a rear perspective view of the main part.

[0033] Figure 12 is Figure 10 a side view of.

[0034] Figure 13 is Figure 10 a cross-sectional view taken along line A-A of.

[0035] Explanation of Reference Numerals

[0036] 1: zippered product

[0037] 5: zipper

[0038] 6: Fabric

[0039] 7: Tooth - mounting edge portion (zipper - mounting member)

[0040] 7a: Opposite side edge

[0041] 9: Folded - back side mounting edge portion

[0042] 10: Zipper tooth member, Tooth member

[0043] 11: Tooth row

[0044] 15: Fixing member

[0045] 20: Fixing sewing portion

[0046] 21: Sewing thread

[0047] 21a: Top thread

[0048] 21b: Bobbin thread

[0049] 30: Slide fastener puller

[0050] 31: Puller body

[0051] 32: Pull tab

[0052] 33: Upper wing plate

[0053] 34: Lower wing plate

[0054] 36: Flange portion

[0055] 37: Flange portion

[0056] 38: Pull - tab mounting portion

[0057] 40: Teeth

[0058] 41: Main body portion

[0059] 42: Engaging portion

[0060] 43: Front half of tooth

[0061] 43a: Front - side main body portion

[0062] 43b: Front - side engaging head (abnormal portion)

[0063] 44: Back half of tooth

[0064] 44a: Back - side main body portion

[0065] 44b: Back - side neck portion (locking portion)

[0066] 44c: Back - side engaging head (locking portion)

[0067] 45: Concave portion

[0068] 45a: Inclined surface

[0069] 45b: Inclined surface

[0070] 45a1: Flat surface

[0071] 45b1: Flat surface

[0072] 46: Decreasing portion

[0073] 46a: Cephalic inclined surface

[0074] 47: Increasing portion

[0075] 47a: Inclined surface of the main body portion

[0076] 48: Increasing portion

[0077] 50: Connecting portion

[0078] 50a: Side surface

[0079] S1: First gap

[0080] S2: Second gap

[0081] W1: Tooth width of the front main body portion

[0082] W2: Tooth width of the back main body portion

[0083] W3: Width of the connecting portion Detailed implementation manners

[0084] Hereinafter, based on the accompanying drawings, the zipper chain component and the zippered product of the embodiment of the present invention will be described in detail.

[0085] In addition, in this specification, the "vertical direction" refers to the sliding direction of the slider, and refers to the length direction of the tooth component and the width direction of the teeth. In particular, the direction in which the slider slides to engage the pair of left and right tooth rows is set as the "upper side", and the direction in which the slider slides to separate the left and right tooth rows is set as the "lower side".

[0086] In addition, the "left - right direction" refers to the direction in which a pair of tooth rows are arranged, and refers to the direction orthogonal to the sliding direction of the slider, and can be alternatively referred to as the front - back direction of the teeth. The direction toward the teeth on the meshing opposite side is set as the "front", and the opposite side is set as the "rear".

[0087] Moreover, the "back - front direction" refers to the direction orthogonal to the vertical direction and the left - right direction, and can also be alternatively referred to as the height direction of the teeth. In addition, sometimes based on the accompanying drawings, a pair of components are described as "left - right" components.

[0088] Based onFigures 1 to 3 The structure of the zippered product 1 to which the present invention is applied will be described. Figure 1 It is a top view schematically showing the main part of the zippered product according to an embodiment of the present invention. Figure 2 Enlarged from the back side Figure 1 The bottom view of the main part schematically shown by the zippered product shown. Figure 3 It is a cross-sectional view of the zippered product along Figure 1 the A-A line. Figure 4 It is a top view of the main part showing the meshing state of a pair of slider members.

[0089] The zippered product 1 of the present embodiment is a zippered piece of clothing (fabric article), and a zipper 5 as shown is formed in the front piece portion of the front body piece of the zippered product 1. Figure 1 as shown.

[0090] In addition, on the left and right fabrics 6 of the front body piece (particularly, the front piece portion) that form the opening / closing portion in the zippered product 1, left and right slider mounting edge portions 7 for respectively mounting the left and right slider members 10 described later are provided.

[0091] In this case, the fabric 6 (also referred to as clothing fabric) constituting the front piece portion of the zippered product 1 becomes a slider mounting member for mounting the slider member 10. Thus, as Figure 1 shown, the zipper 5 formed in the present embodiment has: a pair of left and right slider members 10 that are directly fixed to the fabric 6 and form slider rows 11; and a slider 30 that can engage and disengage the left and right slider rows 11.

[0092] In the present embodiment, there is no particular limitation on the properties such as the thickness, shape, and flexibility of the fabric 6 that becomes the slider mounting member, but the fabric 6 is preferably formed in such a way that a sewing machine needle can pierce it during sewing processing based on a sewing machine.

[0093] In the present embodiment, the slider mounting edge portion 7 provided on the fabric 6 has a predetermined dimension in the width direction of the slider member 10 from the opposite side edges of the fabrics 6 constituting the left and right front piece portions toward the inside of the fabric 6 in the completed zippered product 1, and is continuously formed along the length direction of the slider member 10.

[0094] In the case of the present embodiment, the slider mounting edge portion 7 is a portion that includes at least the range from the above-mentioned opposite side edges to the tip of the folded-back side mounting edge portion 9 in the width direction. This structure can be referred to Figure 2 .

[0095] For example Figure 3As shown, each of the left and right tooth mounting edge portions 7 is formed by folding the side edge portion, which is the cut end portion of the fabric 6, back to the back side in a U shape. Thus, by forming the tooth mounting edge portion 7, the tooth mounting edge portion 7 is locally formed thicker than the other portions of the thin fabric 6, and the strength of the tooth mounting edge portion 7 can be improved.

[0096] Accordingly, even if the sewing thread 21 (the upper thread 21a and the bobbin thread 21b described later) of the fixing sewing portion 20 pierces the tooth mounting edge portion 7 as described later, the tooth mounting edge portion 7 is hardly cut by the sewing thread 21, and the durability of the tooth mounting edge portion 7 can be improved. Moreover, by improving the strength of the tooth mounting edge portion 7, the tooth member 10 can be firmly fixed to the tooth mounting edge portion 7, and the positions and postures of the respective zipper teeth (hereinafter, also referred to as teeth) 40 fixed to the tooth mounting edge portion 7 can be stabilized.

[0097] Moreover, by folding the side edge portion of the fabric 6 in a U shape, even if a thread end occurs at the side end edge of the fabric 6, for example, the thread end can be hidden on the back side of the tooth mounting edge portion 7 and not exposed to the outside. Thus, the garment 1 can have good appearance quality (aesthetic). In addition, it is possible to prevent the meshing of the left and right tooth rows 11 from deteriorating and the slidability (smoothness of sliding) of the slider 30 from decreasing due to the thread end generated at the side end edge of the fabric 6.

[0098] Moreover, in the present embodiment, it is also possible to attach and install a reinforcing sheet member such as an unillustrated resin film or sew it together with the tooth member 10 on at least one of the front and back surfaces of, for example, the tooth mounting edge portion 7 and / or the inside of the side edge portion of the tooth mounting edge portion 7 folded in a U shape (between the upper and lower folded portions). Thus, the tooth mounting edge portion 7 can also be strengthened. In addition, in the present invention, the structure of the fabric of the garment is not particularly limited, and can be appropriately changed according to the use of the garment and the like.

[0099] As Figure 1 shown, the slider 30 attached to the tooth row 11 of the present embodiment has a slider body 31 and a pull tab 32 held by the slider body 31. The slider body 31 of the present embodiment has a substantially same structure as the conventional slider body for the teeth 40 commonly used in injection molding.

[0100] That is, as Figure 3 shown, the slider body 31 of the present embodiment has: an upper wing plate 33; a lower wing plate 34, which is separated from the upper wing plate 33 and arranged in parallel with the upper wing plate 33; a connecting column (not shown), which connects between the front end portion of the upper wing plate 33 and the front end portion (shoulder side end portion) of the lower wing plate 34; upper and lower flange portions 36, 37, which are arranged on the left and right side edge portions of the upper wing plate 33 and the left and right side edge portions of the lower wing plate 34; and a pull tab mounting portion 38, which is arranged on the upper surface of the upper wing plate 33 and is used for holding the pull tab 32.

[0101] In addition, at the front end of the slider body 31, left and right shoulder openings are formed with the connecting post sandwiched therebetween, and a rear opening is formed at the rear end of the slider body 31. A substantially Y-shaped chain tooth guide path that connects the left and right shoulder openings and the rear opening is formed between the upper wing plate 33 and the lower wing plate 34. By using the slider 30 having such a structure, the meshing and separation of the left and right chain tooth members 10 directly fixed to the chain tooth mounting edge 7 of the garment 1 can be smoothly performed.

[0102] Next, based on Figures 5 to 9 The specific structure of the zipper chain tooth member 10 will be described in detail. Figure 5 represents Figure 1 A perspective view of the chain teeth of the zippered product shown, which are installed on the fixing member. Figure 6 is Figure 5 A top view of the chain teeth shown. Figure 7 is Figure 5 A rear view of the chain teeth shown. Figure 8 is Figure 5 A right side view of the chain teeth shown. Figure 9 is Figure 5 A bottom view of the chain teeth shown.

[0103] The zipper chain tooth member (hereinafter, also simply referred to as the chain tooth member) 10 in the present embodiment includes a linear fixing member 15 and a plurality of independent chain teeth 40 mounted on the fixing member 15.

[0104] The fixing member 15 is in the form of a single linear strand. The plurality of independent chain teeth 40 are mounted on the fixing member 15 at a constant interval in the width direction of the chain teeth 40 to form a chain tooth row 11.

[0105] The chain tooth members 10 are grouped in pairs (two), and the left and right pair of chain tooth members 10, 10 are also referred to as zipper chain members. Figure 1 The left and right chain tooth members 10 in

[0106] The fixing member 15 is a cord body (also referred to as a knit cord) formed by wrapping a core wire composed of a plurality of parallel filaments with a bag woven portion formed by a plurality of knitting wires, and has flexibility. In addition, the fixing member 15 used in the present invention is not particularly limited as long as it can mount a plurality of chain teeth 40, and may be formed of, for example, a single filament or a twisted yarn (twisted cord).

[0107] The fixing member 15 is a member having a substantially circular cross-section orthogonal to the length direction, as Figure 3As shown, it has a flat cross-sectional shape by deformation within the tooth 40. However, in the present invention, the cross-sectional shape of the fixing member is not particularly limited.

[0108] Each tooth 40 of the tooth member 10 is integrally formed with the fixing member 15 by, for example, injection molding a thermoplastic resin such as polyoxymethylene resin into the fixing member 15, and is formed so as to cover the entire outer peripheral surface of a part of the fixing member 15.

[0109] In addition, in the present invention, the material of the tooth 40 is not limited to the above synthetic resin, and the tooth can also be formed using, for example, other synthetic resins or metals. In addition, the tooth member 10 of the present invention is not limited to the tooth 40 being formed on the fixing member 15 by injection molding. For example, it also includes a tooth member formed by fixing a tooth 40 pre-formed into a predetermined shape to the fixing member 15 by means of cladding or bonding.

[0110] Also as Figure 5 shown, each tooth 40 of the present embodiment has: an engaging portion 42 that engages with the tooth 40 of the tooth member 10 on the opposite side of the engagement; and a main body portion 41 that extends from the engaging portion 42 in the front-rear direction of the tooth 40 (the direction orthogonal to the extending direction of the fixing member 15 when viewed from above) and is fixed to the fixing member 15.

[0111] Each tooth 40 of the present embodiment has a tooth front half portion 43 and a tooth back half portion 44 that are distinguished based on the substantially middle position in the height direction of the tooth 40 (in the present embodiment, it is the central position of the fixing member 15 in the height direction of the tooth 40).

[0112] In this case, the surface of the tooth front half portion 43 and the tooth back half portion 44 are arranged in a manner orthogonal to the height direction of the tooth 40 and parallel to each other.

[0113] At the rear end portion of the tooth 40, a recess 45 extending in the width direction of the tooth 40 is formed between the tooth front half portion 43 and the tooth back half portion 44.

[0114] In addition, the engaging portion 42 of each tooth 40 has a special-shaped portion 43b on the tooth front half portion 43 side and locking portions 44b, 44c on the tooth back half portion 44 side.

[0115] The tooth front half portion 43 has: a front-side engaging head (special-shaped portion) 43b that engages with the tooth on the opposite side of the engagement and forms the front-side half portion of the engaging portion 42; and a front-side main body portion 43a that extends rearward from the front-side engaging head 43b and sandwiches the fixing member between the front-side main body portion 43a and the tooth back half portion 44.

[0116] The front-side engaging head 43b has a pair of decreasing portions 46, which are shaped such that the chain tooth width gradually decreases toward the tip of the front-side engaging head 43b, and are formed on the side surface of the front-side engaging head 43b.

[0117] In addition, as Figure 5 shown, on the chain tooth side surfaces (upper surface and lower surface) of the front-side engaging head 43b (decreasing portion 46), a head-side inclined surface 46a is formed that causes the chain tooth width to decrease toward the chain tooth surface. The head-side inclined surface 46a can also be an R-shaped curved surface on the chain tooth side surfaces of the front-side engaging head 43b.

[0118] The front-side main body portion 43a is formed in a substantially rectangular parallelepiped shape that gradually becomes wider toward the rear. In other words, the front-side main body portion 43a has a pair of increasing portions 47, which are shaped such that the chain tooth width gradually increases gently toward the rear end of the front-side main body portion 43a, and are formed on the side surface of the front-side main body portion 43a.

[0119] In addition, as Figure 5 shown, on the chain tooth side surfaces (upper surface and lower surface) of the front-side main body portion 43a (increasing portion 47), a main body portion inclined surface 47a is formed that causes the chain tooth width to gradually decrease gently toward the chain tooth surface. The inclination angle of the main body portion inclined surface 47a is larger than the inclination angle of the head-side inclined surface 46a.

[0120] In other words, as Figure 4 shown, the chamfer width L1 of the head-side inclined surface 46a is wider than the chamfer width L2 of the main body portion inclined surface 47a.

[0121] By forming the head-side inclined surface 46a in the decreasing portion 46, in the state where the pair of chain teeth 10 are engaged, the end portions (edge portions) of the front-side engaging head 43b on the chain tooth surface do not contact the end portions (edge portions) of the front-side engaging head 43b on the chain tooth surface of the chain tooth on the meshing opposite side, and a first gap S1 is formed in the vertical direction (chain tooth width direction). This structure can be referred to Figure 4 .

[0122] In addition, the chain tooth 40 can also cause the central portion in the thickness direction of the side surface of the chain tooth 40 to contact the central portion in the thickness direction of the side surface of the chain tooth 40 on the meshing opposite side in the state where the pair of chain teeth 10 are engaged.

[0123] In addition, a predetermined gap is formed between the plurality of chain teeth 40 that constitute the same chain tooth member 10.

[0124] That is, between adjacent chain teeth 40 on the same chain tooth member 10, a second gap S2 is formed in the vertical direction (chain tooth width direction) between the end portions of the front-side main body portion 43a on the chain tooth surface.

[0125] At this time, for a pair of engaging tooth components 10 in the engaged state, on the surface of the tooth 40, the first gap S1 is larger than the second gap S2. At this time, since the chamfer width L1 of the head-side inclined surface 46a is wider than the chamfer width L2 of the main body part inclined surface 47a, the first gap S1 can be made larger than the second gap S2. This structure can be referred to Figure 4 .

[0126] According to this structure, when a pair of engaging tooth components 10 in the engaged state are bent in the direction in which they face each other along the length direction on the surface of the tooth 40, before the surface-side engaging head 43b of the tooth 40 on the side of the surface contacts the surface-side engaging head 43b of the tooth 40 on the engaging opposite side, the end X in the tooth width direction of the surface-side main body part 43a of the tooth 40 can be made to contact the end X in the tooth width direction of the surface-side main body part 43a of the adjacent tooth 40 in the same engaging tooth component 10. The details will be described later.

[0127] The tooth surface half part 43 is the part that appears in the appearance when a pair of engaging tooth components 10 (tooth row 11) are engaged, and has an excellent appearance shape by the surface-side main body part 43a formed in a substantially rectangular shape at the rear and the surface-side engaging head 43b formed in a triangular shape with the tooth width gradually decreasing toward the tip. Specifically, when the zipper 5 is in the engaged state, the engaged teeth 40 are arranged in a honeycomb shape.

[0128] As Figure 6 shown, the tooth surface half part 43 can also be configured such that the surface-side engaging head 43b is inclined downward in a manner that the thickness gradually decreases from the vicinity of the boundary with the surface-side main body part 43a toward the tip. Thereby, the sliding resistance of the slider 30 is reduced, and the tooth 40 can easily enter the slider 30 smoothly, and so-called tooth roll can also be prevented.

[0129] The tooth back half part 44 has: a back-side engaging head 44c that engages with the tooth on the engaging opposite side; a back-side neck part 44b having a shape that extends from the back-side engaging head 44c toward the rear of the tooth and tapers; and a back-side main body part 44a that further extends from the back-side neck part 44b toward the rear of the tooth. In the present embodiment, the back-side neck part 44b and the back-side main body part 44a sandwich the fixing member 15 between the tooth surface half part 43.

[0130] The surface-side main body part 43a, the back-side neck part 44b, and the back-side main body part 44a are respectively located on the surface side and the back side with respect to the fixing member 15 in the height direction of the tooth 40. That is, in the tooth 40, the main body part 41 is fixed to the fixing member 15, and at the same time, a part of the engaging part 42 can also be fixed to the fixing member 15.

[0131] The dorsal main body portion 44a is formed in a substantially rectangular parallelepiped shape that gently widens toward the rear, similar to the ventral main body portion 43a. In other words, the dorsal main body portion 44a has a pair of increasing portions 48 that are shaped such that the width of the chain teeth gradually increases gently toward the rear end of the dorsal main body portion 44a, and are formed on the side surfaces of the dorsal main body portion 44a.

[0132] In addition, the chain tooth width W2 of the widest portion in the dorsal main body portion 44a is smaller than the chain tooth width W1 of the widest portion in the ventral main body portion 43a. This structure can be referred to Figure 7 .

[0133] The dorsal engaging head portion 44c and the dorsal neck portion 44b are combined to form a daruma shape, thereby constituting a locking portion of the engaging portion 42 of the dorsal half portion 44 of the chain teeth. Thus, by being in an engaged state where a pair of chain tooth members 10 are engaged, the locking portion of the engaging portion 42 and the locking portion of the engaging portion 42 of the chain teeth 40 on the opposite side of the engagement are locked in a mutually engaged manner.

[0134] The concave portion 45 is provided on the side surface portion of the main body portion 41 that is disposed opposite to the fabric 6, that is, on the side surface portion of the main body portion 41 on the anti-engaging portion side (behind the chain teeth 40) that is opposite to the engaging portion 42 with respect to the fixing member 15. The concave portion 45 is formed so as to recess the rear end portion of the chain teeth 40 toward the fixing member 15 and is provided along the width direction of the chain teeth 40. In the case of injection molding the chain teeth 40, the concave portion 45 is formed together with a connecting portion 50 described later by using a sliding core (not shown) used when injection molding the chain teeth 40.

[0135] Specifically, the concave portion 45 is formed in a conical shape in which the interval in the height direction gradually widens from the fixing member 15 side toward the anti-engaging portion side by inclined surfaces 45a, 45b that are opposite surfaces formed in the ventral main body portion 43a and the dorsal main body portion 44a, respectively. In addition, flat surfaces 45a1, 45b1 that are parallel to each other are formed at the opening edge portion of the concave portion 45 so as to be adjacent to the inclined surfaces 45a, 45b.

[0136] In addition, a connecting portion 50 is provided in the concave portion 45. The connecting portion 50 connects the ventral main body portion 43a and the dorsal main body portion 44a at the central portion in the width direction of the chain teeth 40 and contacts the fixing member 15 on the anti-engaging portion side.

[0137] The connecting portion 50 is formed in a substantially trapezoidal shape in a cross section along the height direction of the chain teeth 40 and has flat side surfaces 50a that are connected to the inclined surfaces 45a, 45b of the ventral main body portion 43a and the dorsal main body portion 44a on the anti-engaging portion side.

[0138] Therefore, as Figure 9As shown, the main body portion 41 of the tooth 40 covers the entire outer peripheral surface of the fixing member 15 held at the central portion in the height direction of the tooth 40 at the central portion in the width direction of the tooth 40.

[0139] The connecting portion 50 only needs to have a size capable of ensuring the rigidity of the main body portion 41 of the tooth 40. For example, it has a thickness T1 (refer to Figure 9 ) that is more than 1 / 4 of the depth D2 of the recess 45 at both ends in the width direction of the tooth 40, and preferably has a width W3 (refer to Figure 8 ) that is more than 1 / 4 of the width dimension of the tooth 40 in the width direction of the tooth 40.

[0140] As Figure 9 shown, the recess 45 is formed such that the depth D2 at both ends in the width direction is deeper than the depth D1 at the central portion in the width direction of the tooth 40. Thus, when the tooth member 10 is sewn to the tooth mounting edge portion 7 of the fabric 6, the tooth mounting edge portion 7 of the fabric 6 accommodated in the recess 45 can enter the meshing portion side more at both ends in the width direction than at the central portion in the width direction of the tooth 40.

[0141] As a result, as Figure 1 and Figure 2 shown, when viewed from the front-back direction of the tooth member 10, there is no gap or the gap is small enough between the fixing member 15 between adjacent teeth 40 and the tooth mounting edge portion 7 of the fabric 6 facing the fixing member 15, which can improve the appearance of the zippered product 1.

[0142] In addition, in Figure 2 , for convenience of explanation, a gap is provided between the fixing member 15 and the tooth mounting edge portion 7 of the fabric 6. However, in reality, since the fixing member 15 has elasticity, the fixing member 15 bulges slightly in the front-back direction of the tooth 40, and the gap is not conspicuous. Also, since the depth D1 of the recess at the central portion in the width direction of the tooth 40 is shallower than the depth D2 at both ends in the width direction, the rigidity at the main body portion 41 of the tooth 40 can be ensured.

[0143] On the other hand, at the central portion in the width direction of the tooth 40, the opposite side edge 7a of the tooth mounting edge portion 7 abuts against the connecting portion 50, and the top portion has a shape bulging in the height direction of the tooth 40 and is accommodated in the recess 45. This structure can be referred to Figure 3 .

[0144] As described above, in the zippered product 1 of the present embodiment, the depth of the recess 45 formed on the anti-engagement portion side of the main body portion 41 is formed so as to be deeper at both ends in the width direction than at the center in the width direction of the zipper teeth 40. Therefore, the zipper tooth mounting edge portion 7 of the fabric 6 housed in the recess 45 can enter the engagement portion side more at both ends in the width direction than at the center in the width direction of the zipper teeth 40.

[0145] Therefore, when viewed from the front-back direction of the zipper tooth member 10, there is no gap, or the gap is small enough, between the fixing member 15 between adjacent zipper teeth 40 and the zipper tooth mounting edge portion 7 of the fabric 6 facing the fixing member 15, which can improve the appearance of the zippered product 1.

[0146] Next, based on Figures 10 to 13 the action and effect when a pair of zipper tooth members 10 in the engaged state are bent along the length direction will be described.

[0147] Figure 10 is a main view of the main part of the engaged zipper tooth member bent along the length direction. Figure 11 is Figure 10 a rear three-dimensional view of the main part. Figure 12 is Figure 10 a side view of. Figure 13 is Figure 10 a sectional view taken along line B-B of. In addition, the fixing member 15 is a linear member extending along the length direction in a manner of bridging between the zipper teeth 40. In Figure 11 and Figure 12 for the convenience of identification, the representation between adjacent zipper teeth 40 is omitted.

[0148] According to the zipper tooth member 10 of the present embodiment, when a pair of zipper tooth members 10 (zipper tooth rows 11) in the engaged state are bent in the direction in which the zipper tooth front halves 43 (the surfaces of the zipper teeth 40) face each other, before the front-side engagement heads 43b can contact each other, the width-direction end X of the zipper tooth width of the front-side main body portion 43a can contact the width-direction end X of the zipper tooth width of the front-side main body portion 43a of the adjacent zipper teeth 40 on the same zipper tooth member 10. At this time, the end X of the front-side main body portion 43a becomes the width-direction end of the portion with the widest zipper tooth width W1.

[0149] In other words, if a pair of zipper tooth members 10 in the engaged state are bent in the direction in which the zipper tooth front halves 43 face each other, as Figure 12 shown, the width-direction end X of the zipper tooth width of the front-side main body portion 43a contacts the width-direction end X of the zipper tooth width of the front-side main body portion 43a of the adjacent zipper teeth 40 on the same zipper tooth member 10 (on the fixing member 15). On the other hand, as Figure 13As shown, there is a gap S formed because the engaging portion 42 (front-side engaging head portion 43b) of the tooth element 40 does not contact the engaging portion 42 (front-side engaging head portion 43b) of the tooth element 40 on the opposite side of the engagement.

[0150] According to this structure, even when a pair of tooth element members 10 in the engaged state are bent along the length direction, the posture of the main body portion 41 of the tooth element 40 is more stable. Therefore, it is possible to prevent the main body portion 41 of the tooth element 40 (the width-direction end portion of the front-side main body portion 43a) from entering the recess 45 of the adjacent tooth element 40.

[0151] That is, for the tooth element member 10, as Figure 7 shown, the tooth width of the front-side main body portion 43a (the rear end portion) of the front half of the tooth element 43 is set to a wide width, and as Figure 4 shown, a pair of tooth element members 10 in the engaged state are configured such that the first gap S1 > the second gap S2. Thus, it is possible to efficiently prevent the occurrence of chain separation.

[0152] In addition, regarding the tooth element member 10, when a pair of tooth element members 10 in the engaged state are bent in the direction in which the back halves 44 of the tooth elements (the back sides of the tooth elements 40) face each other, the width-direction end portions of the back-side main body portions 44a contact the width-direction end portions of the back-side main body portions 44a of the adjacent tooth elements 40 on the same tooth element member 10. On the other hand, it can also be set such that the engaging portion 42 (the back-side engaging head 44c and the back-side neck portion 44b) of the tooth element 40 does not contact the engaging portion 42 (the back-side engaging head 44c and the back-side neck portion 44b) of the tooth element 40 on the opposite side of the engagement.

[0153] Furthermore, it can also be that the engaging portion 42 (the back-side neck portion 44b and the back-side engaging head 44c) of the back half 44 of the tooth element formed in the shape of an ovoid contacts the engaging portion 42 formed in the shape of an ovoid on the opposite side of the engagement in an engaged manner.

[0154] According to this structure, compared with the case where a pair of tooth element members 10 in the engaged state are bent in the direction in which the front halves 43 of the tooth elements face each other, the tooth elements 40 constituting the engaged tooth element members 10 contact each other at multiple positions from various angles. Therefore, the posture of the tooth element 40 is stable and chain separation is difficult to occur.

[0155] In addition, regarding the shape of the engaging portion 42 of the front half 43 of the tooth element, it is sufficient that the first gap S1 between the front-side engaging heads 43b on the surfaces of the adjacent tooth elements 40 on the opposite side of the engagement is larger than the second gap S2 between the front-side main body portions 43a on the surfaces of the adjacent tooth elements 40 mounted on the same fixing member 15, and it is not limited to the above example. That is, it is possible to change the shape of the front-side engaging head (special-shaped portion) 43b of the tooth element 40 according to the design of the zipper 5.

[0156] In addition, in the above-described embodiment, the irregular portion 43b is disposed on the front side of the slider member 10, but it may be configured such that the irregular portion 43b is disposed on the back side of the slider member 10.

[0157] Furthermore, in the above-described embodiment, the zipper product is described with respect to clothing, but the zipper products of the present invention include not only clothing (fabric products), but also various daily necessities such as footwear and luggage, products such as industrial materials, and various covers for automobiles, trains, aircraft, etc.

[0158] In addition, the present invention is not limited to the above-described embodiment, and can be appropriately changed, improved, etc. within the implementable range.

[0159] As described above, the following matters are disclosed in this specification.

[0160] (1) A chain member for a zipper, which has a pair of left and right slider members (10) for a zipper. The slider members (10) for a zipper include a linear fixing member (15) extending in the length direction, and a plurality of sliders (40) that are mounted on the fixing member (15) and form a slider row (11). Among them,

[0161] The pair of left and right slider members (10, 10) for a zipper can be engaged with each other.

[0162] The slider (40) has: an engaging portion (42) that engages with the slider (40) on the opposite side of the engagement; and a main body portion (41) that extends in the left and right directions from the engaging portion (42) and is fixed to the fixing member (15).

[0163] In the main body portion (41), on the anti-engagement portion side that is on the side opposite to the engaging portion (42) with respect to the fixing member (15), a concave portion (45) that is recessed toward the fixing member (15) is provided along the length direction.

[0164] In a state where the pair of left and right slider members (10, 10) for a zipper are engaged, when the pair of left and right slider members (10, 10) are bent in a direction in which the surfaces or the backs of the sliders (40) face each other along the length direction, when the main body portions (41) of the adjacent sliders (40) of the slider members (10) for a zipper come into contact with each other, the engaging portions (42) of the adjacent sliders (40) of the pair of left and right slider members (10, 10) do not come into contact with each other.

[0165] According to this structure, when a pair of engaged tooth rows is bent in the longitudinal direction, the main bodies of the teeth adjacent to each other in the longitudinal direction on the same tooth member come into contact with each other first. As a result, the posture of the teeth is stable, and thus disengagement of the teeth can be prevented.

[0166] (2) The zipper chain part according to (1), wherein

[0167] the tooth widths (W1, W2) of the main body part (41) in the longitudinal direction are formed to be wide towards the end on the anti-engagement part side,

[0168] in a state where the pair of left and right zipper tooth parts (10, 10) are engaged, when the pair of left and right zipper tooth parts (10, 10) are bent in the longitudinal direction in a direction where the surfaces or the backs of the teeth (40) face each other, the end parts (X) in the tooth width direction of the adjacent main body parts (41) of the zipper tooth part (10) come into contact with each other.

[0169] According to this structure, when a pair of engaged tooth parts is bent in the longitudinal direction, the main bodies of the teeth adjacent to each other in the longitudinal direction on the same tooth part are likely to come into contact with each other first.

[0170] (3) The zipper chain part according to (1) or (2), wherein

[0171] the engagement part (42) has: locking parts (44b, 44c) provided on the back side of the tooth (40) and formed in an elliptical shape; and a special-shaped part (43b) provided on the front side of the tooth (40) and formed to be narrow towards the tip part,

[0172] in a state where the pair of left and right zipper tooth parts (10, 10) are engaged, when the pair of left and right zipper tooth parts (10, 10) are bent in the longitudinal direction in a direction where the surfaces of the teeth (40) face each other, when the main body parts (41) of the adjacent teeth (40) of the zipper tooth part (10) come into contact with each other, the special-shaped parts (43b) of the adjacent teeth (40) of the pair of left and right zipper tooth parts (10, 10) do not come into contact with each other.

[0173] According to this structure, the appearance of the front side of the teeth visually recognizable in the engaged state is improved. In addition, even when a special-shaped part is provided, the posture of the teeth is stable when a pair of tooth parts is bent, and generation of chain separation can be prevented.

[0174] (4) The zipper chain part according to (3), wherein

[0175] In the above-mentioned main body part (41), the width of the tooth surface of the tooth (40) provided with the above-mentioned special-shaped part (43c) is larger than the width of the tooth back of the tooth (40) provided with the above-mentioned locking parts (44b, 44c).

[0176] According to this structure, it is possible to improve the appearance of the tooth surface of the teeth visually recognizable in the meshed state, and at the same time, efficiently prevent the occurrence of chain separation.

[0177] (5) A zippered product, comprising:

[0178] (1) - (4) The zipper chain component according to any one of the above;

[0179] A slider (30) for meshing the pair of left and right zipper tooth components (10, 10); and

[0180] Zipper mounting components (7, 7) for mounting the pair of left and right zipper tooth components (10, 10).

[0181] According to this structure, even when the pair of meshed tooth rows are bent along the length direction, it is possible to prevent the teeth from being disengaged. Therefore, the convenience and durability of the zippered product are improved.

Claims

1. A chain component for a zipper, which has a pair of left and right zipper teeth components (10). The zipper teeth component (10) includes a linear fixing component (15) extending in the length direction, and a plurality of teeth (40) mounted on the fixing component (15) and forming a row of teeth (11). The feature of this chain component for a zipper is that, the pair of left and right zipper teeth components (10, 10) can engage with each other, the tooth (40) has: an engaging portion (42) that engages with the tooth (40) on the engaging opposite side; and a main body portion (41) that extends from the engaging portion (42) in the left and right directions and is fixed to the fixing component (15), in the main body portion (41), on the anti-engaging portion side opposite to the engaging portion (42) with respect to the fixing component (15), a concave portion (45) recessed toward the fixing component (15) is provided along the length direction, in a state where the pair of left and right zipper teeth components (10, 10) are engaged, when the pair of left and right zipper teeth components (10, 10) are bent in a direction where their surfaces or backs are opposed to each other along the length direction on the surface of the tooth (40), when the main body portions (41) of the adjacent teeth (40) of the zipper teeth component (10) come into contact with each other, the engaging portions (42) of the adjacent teeth (40) of the pair of left and right zipper teeth components (10, 10) do not come into contact with each other.

2. The chain component for a zipper according to claim 1, wherein, the tooth widths (W1, W2) of the main body portion (41) in the length direction are formed to be wide toward the end portion on the anti-engaging portion side, in a state where the pair of left and right zipper teeth components (10, 10) are engaged, when the pair of left and right zipper teeth components (10, 10) are bent in a direction where their surfaces or backs are opposed to each other along the length direction on the surface of the tooth (40), the end portions (X) in the tooth width direction of the adjacent main body portions (41) of the zipper teeth component (10) come into contact with each other.

3. The chain component for a zipper according to claim 1, wherein, the engaging portion (42) has: locking portions (44b, 44c) provided on the back side of the tooth (40) and formed in an elliptical shape; and a special-shaped portion (43b) provided on the front side of the tooth (40) and formed to be narrow toward the tip portion, In a state where the pair of left and right zipper chain tooth components (10, 10) are engaged, when the pair of left and right zipper chain tooth components (10, 10) are bent in a direction in which they face each other on the surface of the chain teeth (40) along the length direction, when the main body portions (41) of the adjacent chain teeth (40) of the zipper chain tooth components (10) come into contact with each other, the deformed portions (43b) of the adjacent chain teeth (40) of the pair of left and right zipper chain tooth components (10, 10) do not come into contact with each other.

4. The zipper chain component according to claim 3, wherein: In the main body portion (41), for the chain tooth width at the end portion on the reverse engagement portion side, the chain tooth width on the front side of the chain tooth (40) where the deformed portion (43c) is provided is larger than the chain tooth width on the back side of the chain tooth (40) where the locking portions (44b, 44c) are provided.

5. A product with a zipper, characterized in that, Comprising: The zipper chain component according to any one of claims 1 to 4; A slider (30) for engaging the pair of left and right zipper chain tooth components (10, 10); and Zipper mounting components (7, 7) for mounting the pair of left and right zipper chain tooth components (10, 10).

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