Element member for slide fastener and product with slide fastener

Abstract

A recessed portion (45) recessed toward the fixing member (15) is provided along the width direction of the fastener element (40) on a reverse engagement portion side, which is a side of the main body portion (41) of the fastener element (40) opposite to the engagement portion side with respect to the fixing member (15). The recesses (45) are formed such that the depth at both ends of the elements (40) in the width direction is deeper than the depth at the center of the elements (40) in the width direction. As a result, when the fastener element member (10) is sewn to the fabric, it is possible to suppress a gap generated between the fixing member (15) and the fastener element attachment edge portion (7) of the fabric (6) as much as possible, thereby improving the appearance.

Description

Technical Field

[0001] The present invention relates to a fastener element member for a slide fastener in which a plurality of fastener elements are attached to a fixing member, and a product with a slide fastener having a set of fastener element members for the slide fastener. Background Art

[0002] Generally speaking, zippers are widely used as opening and closing devices for products such as clothing, daily sundries, industrial materials, and various seats for automobiles, trains, and aircraft. Generally speaking, zippers used for such various products have: a pair of left and right zipper tapes, which are formed by forming a chain element row at the side edge of the zipper tape; and a slider that slides along the left and right chain element rows. In addition, as a type of zipper, a zipper with a separation insert is known, and the separation insert can separate the left and right zipper tapes.

[0003] Patent Document 1 describes a product with a zipper in which a zipper is formed without using a zipper tape and a release insert is provided at a predetermined position of the zipper. Specifically, a plurality of fastener elements are respectively mounted on a fixing member to form left and right fastener element members, and each fastener element member is respectively sewn to left and right fabrics forming a garment.

[0004] In addition, Patent Document 1 discloses that the main body of the chain element is provided with an insertion recess for inserting a portion of the chain element mounting edge of the fabric on the side surface arranged opposite to the fabric along the length direction of the chain element member, so that each zipper chain element can be firmly and stably fixed to the chain element mounting edge in a predetermined orientation.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent No. 6786183 Summary of the invention

[0008] Problem that the invention aims to solve

[0009] In addition, in the zipper product described in Patent Document 1, when the fastener element member is sewn to the fabric, the fastener element contacts the fastener element attachment edge of the fabric, but in reality, the fixing member and the fastener element attachment edge of the fabric are often not in contact. Therefore, a relatively large gap is generated between the fixing member and the fastener element attachment edge of the fabric, which sometimes causes a problem of poor appearance when viewed from above. Therefore, from the perspective of improving the appearance, further improvement is sought.

[0010] The present invention is made in view of the above-mentioned problems, and its purpose is to provide a zipper element component and a product with a zipper as follows, which can minimize the gap between the fixing component and the element mounting edge of the cloth when the zipper element component is sewn to the cloth, thereby improving the appearance.

[0011] Solutions for solving problems

[0012] In order to solve the above-mentioned problems, the present invention can be achieved by the following configuration.

[0013] (1) A chain element component for a zipper, comprising a rope-shaped fixing component and a plurality of chain elements mounted on the fixing component and forming a chain element row, wherein the chain element comprises: an engaging portion that engages with a chain element on the side of an engaging object; and a main body portion that extends from the engaging portion toward the front-to-rear direction of the chain element and is fixed to the fixing component, and a recessed portion that is recessed toward the fixing component is provided along the width direction of the chain element on the side of the main body portion opposite to the side where the engaging portion is located relative to the fixing component, i.e., the anti-engaging portion side, and the recessed portion is formed so that the depth at the two end portions in the width direction of the chain element is deeper than the depth at the center portion in the width direction of the chain element.

[0014] (2) A zipper tooth component according to (1), wherein the main body of the tooth comprises a front main body and a back main body, the front main body being located on the front side relative to the fixing component in the height direction of the tooth, and the back main body being located on the back side relative to the fixing component in the height direction of the tooth, the recess being formed between opposite surfaces of the front main body and the back main body, and a connecting portion being provided in the recess at the center in the width direction of the tooth, the connecting portion connecting the front main body and the back main body and contacting the fixing component on the anti-meshing portion side.

[0015] (3) The fastener element member for a slide fastener according to (2), wherein the fixing member is exposed on the anti-engaging portion side at both ends in the width direction of the fastener element in the recessed portion.

[0016] (4) A zipper element component according to (2), wherein a thin-walled connecting portion is provided at both ends of the element in the width direction in the recess, the thin-walled connecting portion connecting the front main body portion and the back main body portion and contacting the fixing member on the anti-meshing portion side.

[0017] (5) A zipper chain tooth component according to any one of (2) to (4), wherein the recessed portion is formed into a wedge shape in which the interval in the height direction gradually widens from the fixing component side toward the counter-meshing portion side by an inclined surface formed on the front main body portion and an inclined surface formed on the back main body portion, and the connecting portion has a flat side surface on the counter-meshing portion side connected to the inclined surface of the front main body portion and the inclined surface of the back main body portion.

[0018] (6) The fastener element member for a slide fastener according to any one of (1) to (5), wherein a maximum opening dimension of the recessed portion is smaller than a height dimension of the fastener element.

[0019] (7) A product with a zipper, wherein the product with a zipper comprises: a pair of left and right zipper tooth components according to any one of (1) to (6); a slider for engaging left and right tooth rows respectively formed by the plurality of tooth components; and a component for installing the zipper, on which the pair of left and right zipper tooth components are installed.

[0020] Effects of the Invention

[0021] According to the slide fastener element member and the product with a slide fastener of the present invention, when the element member is sewn to the cloth, the gap generated between the fixing member and the element attachment edge of the cloth can be minimized, thereby improving the appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a plan view schematically showing a main part of a product with a slide fastener according to one embodiment of the present invention.

[0023] Figure 2 Yes Figure 1 The product with a zipper is shown in an enlarged and schematic bottom view from the back side.

[0024] Figure 3 It is a schematic representation Figure 1 A cross-sectional view of a product with a zipper is shown.

[0025] Figure 4 It means in Figure 1 The illustrated perspective view is of a fastener element mounted on a fixing member and used in a product with a slide fastener.

[0026] Figure 5A yes Figure 4 A top view of the chain element is shown.

[0027] Figure 5B Observed from the rear Figure 5A Side view of the chain teeth.

[0028] Figure 5C Observed from below Figure 5A Bottom view of the chain teeth.

[0029] Figure 5D Observe from the front Figure 5A Side view of the chain teeth.

[0030] Figure 6 This is a side view showing a state where the fastener element is rotated relative to the cloth.

[0031] Figure 7 It is along Figure 1 A cross-sectional view of the VII-VII line of zippered products.

[0032] Figure 8 It means in Figure 1 A perspective view of a modified example of a fastener element attached to a fixing member used in a product with a slide fastener shown.

[0033] Fig. 9 Observed from below Figure 8 Bottom view of the chain teeth shown. DETAILED DESCRIPTION

[0034] Hereinafter, a fastener element member for a slide fastener and a product with a slide fastener according to an embodiment of the present invention will be described in detail based on the drawings.

[0035] In addition, in this specification. The "up and down direction" is the sliding direction of the slider, which refers to the length direction of the chain tooth component and the width direction of the chain tooth. In particular, the direction in which the slider slides so that a pair of left and right chain tooth rows are meshed is set to "up", and the direction in which the slider slides so that the left and right chain tooth rows are separated is set to "down". In addition, the "left and right direction" is the direction in which a pair of chain tooth rows are arranged, which is a direction orthogonal to the sliding direction of the slider, and can also be referred to as the front and back direction of the chain teeth, and the direction of the chain teeth facing the meshing object side is set to "front", and the opposite side is set to "back". In addition, the "front and back direction" is a direction orthogonal to both the up and down direction and the left and right direction, and can also be referred to as the height direction of the chain teeth. In addition, sometimes a pair of components are described as "left and right" components based on the accompanying drawings.

[0036] The zippered product 1 of the present embodiment is a garment (clothing) with a zipper, and a zippered product 1 is formed at a front placket portion. Figure 1 The slide fastener 5 shown. In addition, the left and right fabrics 6 forming the front body (particularly the placket portion) of the slide fastener product 1 are provided with left and right element attachment edges 7 for attaching left and right element members 10 described later, respectively.

[0037] In this case, the fabric 6 (also referred to as clothing fabric) constituting the placket portion of the product with a zipper 1 becomes a member to be attached with the zipper to which the element member 10 is attached. Figure 1 As shown, the slide fastener 5 formed in this embodiment includes: a pair of left and right element members 10 directly fixed to the cloth 6 to form the element rows 11; and a slider 30 that can engage and disengage the left and right element rows 11.

[0038] In the present embodiment, the properties such as thickness, shape, and flexibility of the fabric 6 as a member to be attached with the zipper are not particularly limited, but the fabric 6 is preferably formed so that a sewing machine needle can penetrate it during sewing with a sewing machine.

[0039] In the present embodiment, the element attachment edge 7 provided on the fabric 6 has a predetermined dimension in the width direction of the element member 10 from the opposite side edges of the fabric 6 constituting the left and right placket parts toward the inner side of the fabric 6 in the completed zipper product 1, and is continuously formed along the length direction of the element member 10. In the case of the present embodiment, the element attachment edge 7 is a portion that includes at least the range from the above-mentioned opposite side edges to the top end of the folded-back side attachment edge 9 in the width direction.

[0040] For example Figure 3 As shown, each of the left and right element attachment edges 7 is formed by folding the side edge portions of the cut end portions of the cloth 6 back in a U-shape toward the back side. By forming the element attachment edges 7 in this way, the element attachment edges 7 are locally formed thicker than other portions of the thinner cloth 6, thereby improving the strength of the element attachment edges 7.

[0041] Thus, even if the sewing thread 21 (the upper thread 21a and the lower thread 21b described later) of the fixing sewing portion 20 pierces the element mounting edge 7 as described later, the element mounting edge 7 is not easily broken by the sewing thread 21, and the durability of the element mounting edge 7 can be improved. In addition, by improving the strength of the element mounting edge 7, the element member 10 can be firmly fixed to the element mounting edge 7, and the position and posture of each zipper element (hereinafter, also referred to as element) 40 fixed to the element mounting edge 7 can be stabilized.

[0042] Moreover, by folding the side edge of the fabric 6 back into a U-shape, even if a fraying occurs at the side edge of the fabric 6, the fraying can be hidden at the back side of the element mounting edge 7 and not exposed to the outside. Therefore, the garment 1 can have a good appearance quality (beautiful appearance). In addition, it is possible to prevent the meshing of the left and right element rows 11 from being deteriorated and the sliding property (smoothness of sliding) of the slider 30 from being reduced due to the fraying generated at the side edge of the fabric 6.

[0043] Moreover, in the present embodiment, a reinforcing sheet member such as a resin film not shown may be bonded and installed on at least one of the surface and back of the element mounting edge 7, and / or the inner side (between the upper and lower folded parts) of the U-shaped folded side edge of the element mounting edge 7, or a reinforcing sheet member such as a resin film not shown may be sewn together with the element member 10 on at least one of the surface and back of the element mounting edge 7, and / or the inner side (between the upper and lower folded parts) of the U-shaped folded side edge of the element mounting edge 7. Thus, the element mounting edge 7 can also be reinforced. In addition, in the present invention, the structure of the fabric of the clothing is not particularly limited and can be appropriately changed according to the purpose of the clothing.

[0044] The fastener element member 10 of the present embodiment includes a rope-shaped fixing member 15 and a plurality of independent fastener elements 40 attached to the fixing member 15. The fixing member 15 is in the form of a single rope. The plurality of independent fastener elements 40 are attached to the fixing member 15 at regular intervals in the width direction of the fastener elements 40 to form a fastener element row 11. A pair (two) of fastener element members 10 constitutes one group. Figure 1 The left and right element members 10 are sewn together along the end portions of the left and right element attaching edges 7 provided on the product 1 with a slide fastener.

[0045] The fixing member 15 is a flexible rope (also called a knitted rope) formed by wrapping a core wire composed of multiple parallel multifilaments in a bag woven portion knitted by multiple knitting yarns. In addition, the fixing member 15 used in the present invention is not particularly limited as long as it can be equipped with multiple fastener elements 40. For example, it can also be formed of a monofilament or a twisted yarn (twisted rope). The fixing member 15 is a member with a substantially circular cross section perpendicular to the length direction, such as Figure 3 As shown, the fixing member 15 has a flat cross-sectional shape due to deformation in the fastener element 40. However, in the present invention, the cross-sectional shape of the fixing member is not particularly limited.

[0046] Each of the chain teeth 40 of the chain tooth member 10 is formed, for example, by injection molding a thermoplastic resin such as polyacetal on the fixing member 15 so as to be integrated with the fixing member 15 and cover the entire outer peripheral surface of a part of the fixing member 15. In addition, in the present invention, the material of the chain teeth 40 is not limited to the above-mentioned synthetic resin, and for example, the chain teeth can also be formed by other synthetic resins or metals. In addition, the chain tooth member of the present invention is not limited to a member formed by injection molding a chain tooth on a fixing member, and for example, it also includes a member formed by fixing a chain tooth pre-formed into a predetermined shape to a fixing member by welding or bonding.

[0047] Also like Figure 2 , Figure 4 and Figure 5A to Figure 5CAs shown, each link tooth 40 of the present embodiment comprises: an engaging portion 42 which engages with the link tooth 40 of the link tooth member 10 on the engaging object side; and a main body portion 41 which extends from the engaging portion 42 toward the front-to-rear direction of the link tooth 40 (a direction orthogonal to the extension direction of the fixing member 15 when viewed from above) and is fixed to the fixing member 15.

[0048] Each of the fastener elements 40 of the present embodiment has a fastener element front half 43 and a fastener element back half 44 which are distinguished based on a substantially middle position in the height direction of the fastener element 40 (in the present embodiment, the center position of the fixing member 15 in the height direction of the fastener element 40). The fastener element front half 43 and the fastener element back half 44 have mutually different shapes. In this case, the surface of the fastener element front half 43 and the back surface of the fastener element back half 44 are orthogonal to the height direction of the fastener element 40 and are arranged parallel to each other.

[0049] The front half of the element 43 has a front engaging head 43b that engages with the element on the engaging object side, and a front body 43a that extends from the front engaging head 43b toward the rear of the element member 10 and clamps the fixing member 15 between the front body 43a and the element back half 44.

[0050] The front side main body 43a is formed in a substantially rectangular parallelepiped shape. In addition, the front side engaging head 43b is in a shape in which the width of the fastener element decreases in two stages toward the top of the front side engaging head 43b, and the front side engaging head 43b has a first decreasing portion 46a formed on the side of the front side main body 43a and a second decreasing portion 46b formed on the top side from the first decreasing portion 46a via a step portion 46c.

[0051] In addition, if Figure 5D As shown, the element side surfaces (upper surface and lower surface) of the first decreasing portion 46a and the second decreasing portion 46b are formed as inclined surfaces in which the element width decreases toward the element surface.

[0052] The back half of the element 44 has a back engaging head 44c that engages with the element on the engaging object side, a back neck 44b that extends from the back engaging head 44c toward the rear of the element and has a necked shape, and a back body 44a that extends from the back neck 44b further toward the rear of the element. In this embodiment, the fixing member 15 is clamped between the back neck 44b and the back body 44a and the element front half 43.

[0053] The front body portion 43 a is located on the front side with respect to the fixing member 15 in the height direction of the fastener element 40 , and the back neck portion 44 b and the back body portion 44 a are located on the back side with respect to the fixing member 15 in the height direction of the fastener element 40 .

[0054] The front side engaging head 43b of the fastener element front half 43 is brought into contact with the side of the front side engaging head 43b of the fastener element 40 on the engaging object side, and the back side neck 44b and the back side engaging head 44c of the fastener element back half 44 are engaged with the fastener element back half 44 of the fastener element 40 on the engaging object side, thereby engaging the left and right fastener element rows 11. Therefore, the front side engaging head 43b, the back side neck 44b and the back side engaging head 44c constitute the engaging portion 42. That is, in the fastener element 40, the main body 41 may be fixed to the fixing member 15, but at the same time, a part of the engaging portion 42 may also be fixed to the fixing member 15.

[0055] Furthermore, a concave portion 45 that is recessed toward the fixing member 15 is provided along the width direction of the fastener element 40 on the side portion of the main body 41 that is arranged opposite to the cloth 6, that is, on the side portion of the main body 41 that is on the anti-engaging portion side (the rear side of the fastener element 40) that is the side opposite to the side where the engaging portion 42 is located with respect to the fixing member 15. When the fastener element 40 is injection molded, the concave portion 45 is formed together with the connecting portion 50 described later by a slide core (not shown) used when the fastener element 40 is injection molded.

[0056] Specifically, the recess 45 is formed into a wedge shape in which the distance in the height direction gradually widens from the fixing member 15 side toward the counter-engaging part side by the inclined surfaces 45a and 45b formed on the opposing surfaces of the front body part 43a and the back body part 44a, respectively. In addition, at the opening edge of the recess 45, parallel flat surfaces 45a1 and 45b1 are formed adjacent to the inclined surfaces 45a and 45b.

[0057] In addition, in the recess 45, a connecting portion 50 is provided at the center of the width direction of the fastener element 40, and the connecting portion 50 connects the front side main body portion 43a and the back side main body portion 44a and contacts the fixing member 15 on the anti-engaging portion side. The connecting portion 50 is formed into a substantially trapezoidal shape in a cross section along the height direction of the fastener element 40, and has a flat side surface 50a connected to each inclined surface 45a, 45b of the front side main body portion 43a and the back side main body portion 44a on the anti-engaging portion side. In addition, the "flat side surface" in the claims of the present invention includes a side surface with some taper or curvature, a substantially flat side surface with fine concave and convex, etc.

[0058] Therefore, if Figure 3 As shown, the main body portion 41 of the fastener element 40 covers the entire outer peripheral surface of the fixing member 15 held in the center portion in the height direction of the fastener element 40 in the center portion in the width direction of the fastener element 40 .

[0059] The connecting portion 50 may be any size that can ensure the rigidity of the main body 41 of the fastener element 40. For example, the connecting portion 50 preferably has a thickness T1 that is at least 1 / 4 of the depth D2 of the recessed portion 45 at both ends in the width direction of the fastener element 40 (see Figure 5C ), and has a width W1 that is 1 / 4 or more of the width dimension W of the fastener element 40 in the width direction of the fastener element 40 (refer to Figure 5B ).

[0060] On the other hand, in the recess 45, the fixing member 15 is exposed on the anti-engaging portion side at both ends in the width direction of the fastener element 40. However, the height direction interval L1 given by the two inclined surfaces 45a and 45b where the fixing member 15 is exposed is sufficiently smaller than the height dimension H1 of the fixing member 15 (refer to Figure 5B , Figure 5C ), therefore, most of the outer peripheral surface of the fixing member 15 is also fully wrapped and retained in the main body 41 at both ends in the width direction of the fastener element 40, and no positional displacement occurs in the main body 41.

[0061] Therefore, if Figure 5C As shown in FIG. 1 , the recess 45 is formed such that the depth D2 at both ends of the fastener element 40 in the width direction is deeper than the depth D1 at the center of the fastener element 40 in the width direction. Thus, when the fastener element member 10 is sewn to the fastener element attachment edge 7 of the fabric 6, the fastener element attachment edge 7 of the fabric 6 accommodated in the recess 45 can enter the meshing portion side at both ends in the width direction than at the center of the fastener element 40 in the width direction. As a result, as shown in FIG. Figure 1 and Figure 2 As shown, when the fastener element member 10 is viewed from the front and back, the gap between the fixing member 15 between adjacent fastener elements 40 and the fastener element mounting edge 7 of the fabric 6 opposite to the fixing member 15 disappears or becomes sufficiently small, which can improve the appearance of the zipper product 1. Figure 2 In the figure, for convenience of explanation, a gap is provided between the fixing member 15 and the element attachment edge 7 of the cloth 6, but in reality, since the fixing member 15 has elasticity, the fixing member 15 bulges slightly in the front-rear direction of the element 40, and the gap is not noticeable. In addition, since the depth D1 of the recessed portion at the center portion in the width direction of the element 40 is shallower than the depth D2 of the recessed portion at both ends in the width direction of the element 40, the rigidity of the main body 41 of the element 40 can be ensured.

[0062] On the other hand, in the width direction center part of the fastener element 40, the relative side edge 7a of the fastener element mounting edge 7 abuts against the connecting portion 50 and the top end portion of the relative side edge 7a of the fastener element mounting edge 7 becomes a bulging shape along the height direction of the fastener element 40 and is accommodated in the recess 45.

[0063] In addition, in the present embodiment, the concave portion 45 is formed by the flat inclined surfaces 45a and 45b of the front-side main body portion 43a and the back-side main body portion 44a. However, as long as it is formed between the opposing surfaces of the front-side main body portion 43a and the back-side main body portion 44a, it may be a concave curved surface instead of the inclined surfaces 45a and 45b.

[0064] In addition, for the connecting portion 50, as long as the rigidity of the teeth 40 can be ensured, it may have other shapes.

[0065] Moreover, the maximum opening size L2 of the concave portion 45 is larger than the height size H3 in the front-back direction of the tooth mounting edge portion 7 of the fabric 6 (refer to Figure 3 ). Thus, as Figure 6 shown, even when a force such as rotating the tooth member 10 around the fixed member 15 acts on the tooth mounting edge portion 7 of the fabric 6, the state where the opposite side edge 7a of the tooth mounting edge portion 7 is housed in the concave portion 45 can be maintained, and the fabric 6 can be prevented from climbing onto the surface of the teeth 40.

[0066] The tooth members 10 as described above are arranged at positions adjacent to the tooth mounting edge portion 7 of the fabric 6 on the outer side in the width direction and are fixed by the fixing sewing portion 20 (fixing sewing thread). In this case, the fixing sewing portion 20 is formed by sewing with a zigzag sewing machine and is formed in a zigzag shape by being bent in the length direction by flat sewing. The tooth member 10 is fixed to the tooth mounting edge portion 7 in a state where the main body portion 41 of each tooth 40 is in contact with the tooth mounting edge portion 7 of the fabric 6 by the fixing sewing portion 20.

[0067] Here, a zigzag sewing machine is a sewing machine that can sew the fabric 6 and the like in a zigzag manner by swinging the sewing needle along a crossing direction that crosses the feeding direction of the sewing machine. In addition, the swing of the sewing needle in the zigzag sewing machine is sometimes referred to as a zigzag swing (Japanese: 千鳥振り). By using such a zigzag sewing machine and setting coordinate data such as the X coordinate (position in the feeding direction) and the Y coordinate (position in the crossing direction) that become the needle dropping position of the sewing needle and performing sewing, the fixing sewing portion 20 formed after sewing can be easily bent in a zigzag shape in the above-mentioned crossing direction with respect to the feeding direction of the zigzag sewing machine.

[0068] The sewing thread 21 of the fixing sewing portion 20 formed by flat sewing includes: an upper thread (needle thread) 21a, which runs on the surface of the element mounting edge 7 and contacts the upper half of the fixing member 15; and a lower thread (bobbin thread) 21b, which runs on the back of the element mounting edge 7 and contacts the back half of the fixing member 15. In this case, since the fixing sewing portion 20 is formed by flat sewing, the upper thread 21a and the lower thread 21b are arranged in a mutually symmetrical positional relationship in the vertical direction except for the portion where the two intersect.

[0069] In addition, the surface thread 21a and the bottom line 21b of the flat seam are used with conventional sewing threads. In addition, the surface thread 21a and the bottom line 21b in the flat seam intersect (interlace) each other at the piercing position of the fixed sewing portion 20 piercing the chain element mounting edge 7 and the position contacting the outer peripheral surface of the fixing member 15.

[0070] In addition, if Figure 1 As shown in FIG. 1 , the slider 30 mounted on the fastener element row 11 of the present embodiment includes a slider body 31 and a pull tab 32 held on the slider body 31. The slider body 31 of the present embodiment has substantially the same structure as that of a conventional slider body generally used for injection molded fastener elements 40. Figure 7 As shown, the slider body 31 of the present embodiment comprises: an upper wing plate 33; a lower wing plate 34, which is separated from and arranged in parallel with the upper wing plate 33; a connecting column (not shown), which connects the front end portion (shoulder side 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 edges of the upper wing plate 33 and 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 holds the pull tab 32.

[0071] In addition, left and right shoulder openings are formed at the front end of the slider body 31 in a manner of sandwiching the connecting column, and a rear opening is formed at the rear end of the slider body 31. A substantially Y-shaped fastener guide path connecting 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 left and right fastener members 10 directly fixed to the fastener mounting edge 7 of the clothing 1 can be smoothly engaged and separated.

[0072] In addition, in terms of the dimensional relationship between the recess 45 of the fastener element 40 and the slider 30, the maximum opening dimension L2 of the recess 45 is smaller than the height dimension H2 of the fastener element. Therefore, the side surfaces 47a and 47b are provided on the anti-engaging portion side of the front body portion 43a and the anti-engaging portion side of the back body portion 44a, which can guide the inner side surfaces of the upper and lower flange portions 36 and 37 of the slider 30. In addition, since the maximum opening dimension L2 of the recess 45 is designed to be narrower than the interval L3 between the upper and lower flange portions 36 and 37, it is possible to prevent the opening edge between the side surfaces 47a and 47b of the fastener element 40 and the inclined surfaces 45a and 45b from slidingly contacting with the inner side surfaces of the upper and lower flange portions 36 and 37, thereby preventing the inner side surfaces from being worn.

[0073] As described above, in the zipper product 1 of the present embodiment, the depth of the recessed portion 45 formed on the anti-engaging portion side of the main body 41 is formed so that the depth is deeper at both ends in the width direction of the fastener element 40 than at the center in the width direction of the fastener element 40, so that the fastener element attachment edge portion 7 of the fabric 6 accommodated in the recessed portion 45 can enter the engagement portion side at both ends in the width direction of the fastener element 40 than at the center in the width direction of the fastener element 40. Therefore, when the fastener element member 10 is viewed from the front and back direction, the gap between the fixing member 15 between adjacent fastener elements 40 and the fastener element attachment edge portion 7 of the fabric 6 facing the fixing member 15 disappears or becomes sufficiently small, and the appearance of the zipper product 1 can be improved.

[0074] Furthermore, in the above-described embodiment, the fixing member 15 is exposed on the anti-engaging portion side at both ends in the width direction of the fastener element 40, but the present invention is not limited thereto. Figure 8 and Fig. 9 As shown, a thin-walled connecting portion 60 that connects the front body portion 43a and the back body portion 44a and contacts the fixing member 15 on the anti-engaging portion side may be provided in the recessed portion 45 at both ends in the width direction of the fastener element 40 during injection molding. The thin-walled connecting portion 60 is also continuous with the connecting portion 50 in the width direction of the fastener element 40. In addition, when the fastener element member 10 is sewn to the fastener element mounting edge portion 7 of the cloth 6, the fastener element mounting edge portion 7 of the cloth 6 contacts the thin-walled connecting portion 60 at both ends in the width direction of the fastener element 40.

[0075] However, in this case, the thickness dimension T2 of the thin-walled connecting portion 60 is smaller than the thickness dimension T1 of the connecting portion 50 , and the recessed portion 45 is formed so that the depth at both ends in the width direction of the fastener element 40 is deeper than the depth at the center in the width direction of the fastener element 40 ( D1 < D2 ).

[0076] Therefore, similar to the above-mentioned embodiment, when observing from the front and back directions of the chain element component 10, the gap between the fixing components 15 between adjacent chain elements 40 and the chain element mounting edge 7 of the fabric 6 opposite to the fixing components 15 disappears or becomes sufficiently small, which can improve the appearance of the zipper product 1.

[0077] In addition, if Figure 8 As shown, the thin-walled connecting portion 60 does not necessarily need to be provided on the entire surface in the width direction of the fastener element 40. For example, the thin-walled connecting portion 60 may be provided in a portion in the width direction of the fastener element 40. In addition, the thickness dimension T2 is not necessarily constant, and for example, a through hole or a notch may be provided in a portion of the thin-walled connecting portion 60.

[0078] In addition, in the above-mentioned embodiment, clothes are described as zipper products, but the zipper products of the present invention are not limited to clothes (clothing), and include various products such as daily necessities such as shoes and bags, industrial materials, various seats for cars, trains, aircraft, etc.

[0079] In addition, the present invention is not limited to the above-described embodiment, and can be appropriately changed, improved, etc. within the scope of implementation.

[0080] As described above, the following matters are disclosed in this specification.

[0081] (1) A chain element component for a zipper, comprising a rope-shaped fixing component and a plurality of chain elements mounted on the fixing component and forming a chain element row, wherein the chain element comprises: an engaging portion that engages with a chain element on the side of an engaging object; and a main body portion that extends from the engaging portion toward the front-to-rear direction of the chain element and is fixed to the fixing component, and a recessed portion that is recessed toward the fixing component is provided along the width direction of the chain element on the side of the main body portion opposite to the side where the engaging portion is located relative to the fixing component, i.e., the anti-engaging portion side, and the recessed portion is formed so that the depth at the two end portions in the width direction of the chain element is deeper than the depth at the center portion in the width direction of the chain element.

[0082] According to this configuration, when the element member is sewn to the cloth, a gap generated between the fixing member and the element attaching edge of the cloth can be suppressed as much as possible, thereby improving the appearance.

[0083] (2) A zipper tooth component according to (1), wherein the main body of the tooth comprises a front main body and a back main body, the front main body being located on the front side relative to the fixing component in the height direction of the tooth, and the back main body being located on the back side relative to the fixing component in the height direction of the tooth, the recess being formed between opposite surfaces of the front main body and the back main body, and a connecting portion being provided in the recess at the center in the width direction of the tooth, the connecting portion connecting the front main body and the back main body and contacting the fixing component on the anti-meshing portion side.

[0084] According to this structure, the rigidity of the main body part of the fastener element can be ensured by the connection part provided in the width direction center part of the fastener element.

[0085] (3) The fastener element member for a slide fastener according to (2), wherein the fixing member is exposed on the anti-engaging portion side at both ends in the width direction of the fastener element in the recessed portion.

[0086] According to this structure, the element attachment edge of the fabric can be brought into contact with the fixing member at both ends of the element in the width direction. When the element member is sewn to the fabric, the gap between the fixing member and the element attachment edge of the fabric can be minimized, thereby improving the appearance.

[0087] (4) A zipper element component according to (2), wherein a thin-walled connecting portion is provided at both ends of the element in the width direction in the recess, the thin-walled connecting portion connecting the front main body portion and the back main body portion and contacting the fixing member on the anti-meshing portion side.

[0088] According to this structure, the rigidity of the main body part of the fastener element can be further ensured by the thin-walled connection part provided at both end parts in the width direction of the fastener element.

[0089] Furthermore, even when resin at both ends of the fastener element in the width direction enters between the fixing member and the slide core during injection molding of the fastener element, the gap generated between the fixing member and the fastener element attachment edge of the fabric can be minimized, thereby improving the appearance.

[0090] (5) A zipper tooth component according to any one of (2) to (4), wherein the recessed portion is formed into a wedge shape in which the interval in the height direction gradually widens from the fixing component side toward the counter-meshing portion side by an inclined surface formed on the front main body portion and an inclined surface formed on the back main body portion, and the connecting portion has a flat side surface on the counter-meshing portion side connected to the inclined surfaces of the front main body portion and the back main body portion.

[0091] According to this structure, the wedge-shaped recess can be used to fully accommodate the chain element mounting edge of the cloth. In addition, even when a force such as rotating the chain element component around the fixing component is applied to the chain element mounting edge of the cloth, the top end portion of the chain element mounting edge can be maintained in a state where it is accommodated in the recess, and the cloth can be prevented from going over the surface of the chain element.

[0092] (6) The fastener element member for a slide fastener according to any one of (1) to (5), wherein a maximum opening dimension of the recessed portion is smaller than a height dimension of the fastener element.

[0093] According to this configuration, since the side surface portions are provided on the anti-engaging portion side of the front body portion and the anti-engaging portion side of the rear body portion, the inner side surfaces of the upper and lower flange portions of the slider can be guided.

[0094] (7) A product with a zipper, wherein the product with a zipper comprises: a pair of left and right zipper tooth components according to any one of (1) to (6); a slider for engaging left and right tooth rows respectively formed by the plurality of tooth components; and a component for installing the zipper, on which the pair of left and right zipper tooth components are installed.

[0095] According to this structure, when the fastener element is sewn to the fabric, the gap between the fixing element and the fastener element mounting edge of the fabric can be minimized, and the appearance can be improved. In addition, the depth of the concave portion at the center of the width direction of the fastener element is shallower than the depth of the concave portions at the two ends in the width direction, so the rigidity of the main body of the fastener element can be ensured.

[0096] Description of Reference Numerals

[0097] 1. Products with zippers; 6. Fabric (components to be installed with the zipper); 7. Element mounting edge; 10. Element component (Element component for zipper); 11. Element row; 15. Fixing component; 30. Slider; 31. Slider body; 32. Puller; 40. Zipper element (Element); 41. Main body; 42. Engaging part; 43. Element front half; 43a. Surface main body; 43b. Surface engaging head; 44. Element back half; 44a. Back main body; 44b. Back neck; 44c. Back engaging head; 45a, 45b, inclined surfaces (opposite surfaces); H. Element height dimension; L2. Maximum opening dimension of the recess.

Claims

1. A fastener element member (10) for a slide fastener, comprising a rope-shaped fixing member (15) and a plurality of fastener elements (40) attached to the fixing member and forming a fastener element row (11), wherein: The fastener element comprises: an engaging portion (42) which engages with the fastener element on the engaging object side; and a main body portion (41) which extends from the engaging portion toward the front-rear direction of the fastener element and is fixed to the fixing member. A concave portion (45) is provided along the width direction of the fastener element on the side of the main body opposite to the side where the meshing portion is located relative to the fixing member, i.e., the anti-meshing portion side. The recessed portion is formed so that the depth at both ends in the width direction of the fastener element is deeper than the depth at the center portion in the width direction of the fastener element.

2. The slide fastener element member (10) according to claim 1, wherein: The main body of the fastener element comprises a front main body portion (43a) and a back main body portion (44a), wherein the front main body portion (43a) is located on the front side relative to the fixing member in the height direction of the fastener element, and the back main body portion (44a) is located on the back side relative to the fixing member in the height direction of the fastener element. The recessed portion is formed between the facing surfaces (45a, 45b) of the front side main body portion and the back side main body portion. A connecting portion (50) is provided in the recess at the center of the width direction of the fastener element, the connecting portion (50) connecting the front side main body portion and the back side main body portion and contacting the fixing member on the anti-engaging portion side.

3. The slide fastener element member (10) according to claim 2, wherein: In the recessed portion, the fixing member is exposed on the anti-engaging portion side at both ends in the width direction of the fastener element.

4. The slide fastener element member (10) according to claim 2, wherein: In the recess, thin-walled connecting portions (60) are provided at both ends in the width direction of the fastener element, the thin-walled connecting portions (60) connecting the front side main body portion and the back side main body portion and contacting the fixing member on the anti-engaging portion side.

5. The slide fastener element member (10) according to any one of claims 2 to 4, wherein The recess is formed into a wedge shape by an inclined surface (45a) formed on the front side main body and an inclined surface (45b) formed on the back side main body, and the interval in the height direction gradually widens from the fixing member side toward the anti-meshing part side. The connecting portion has a flat side surface (50a) connected to the inclined surface of the front body portion and the inclined surface of the back body portion on the side of the anti-meshing portion.

6. The slide fastener element member (10) according to any one of claims 1 to 5, wherein The maximum opening dimension (L2) of the recessed portion is smaller than the height dimension (H) of the fastener element.

7. A product (1) with a zipper, wherein: The zippered product (1) has: A pair of left and right slide fastener element members (10) according to any one of claims 1 to 6; a slider (30) for engaging left and right fastener element rows (11) respectively formed by the plurality of fastener elements; and The slide fastener assembly (6) is provided for mounting the left and right slide fastener element assembly (10).

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