Fastening part, slide fastner, and manufacturing method for fabric with fastening part

Abstract

A fastening part (2, 2') is attachable to an edge (91) of an article (9) directly or via an intervening object. The fastening part (2, 2') includes: an attachment face (2a) provided on one side in the thickness direction thereof orthogonal to the longitudinal direction thereof; and an engagement structure (2b) provided on the opposite side to the attachment face (2a) in the thickness direction thereof. The engagement structure (2b) includes at least one engaging element row (21-24) in which engaging elements (30) are disposed along the longitudinal direction of the fastening part (2, 2'). Each engaging element (30) is provided upright on the opposite side to the attachment face (2a).

Description

Fastening parts, slide fasteners, and manufacturing method for fabric with fastening parts

[0001] The present disclosure relates to a fastening part, a slide fastener, and a method for manufacturing a fabric with a fastening part.

[0002] There is a need to directly attach fastener elements to the fabric of a garment without fastener tape, thereby avoiding the fastener tape, which is made of a different material from the fabric of the garment, from affecting the appearance of the garment and also avoiding the fastener tape from reducing the flexibility of the garment.

[0003] Patent Document 1 discloses that a stringer without tape is sewn directly to the fabric of a garment for various purposes such as reducing the weight and cost of a slide fastener, or attaching it in a way that looks good. The stringer has a fastener element made of monofilament and an element fixing member inserted between the upper and lower legs of the fastener element, and the fastener element and the element fixing member are sewn together (see Figure 3 of the document).

[0004] Patent Document 2 discloses a novel fastening system. The fastening system has first and second fastening devices. Each fastening device includes a fastening portion and a tape portion connected thereto. A relief groove is formed in the fastening portion (see Figure 2 of the same document).

[0005] Patent Document 3 discloses that fastener elements are attached to both ends of a cloth tape, and the cloth tape is connected to an article at its bent central portion (see FIG. 2 of the document).

[0006] Patent Document 4 discloses a slide fastener in which male and female strips are tightly fitted together.

[0007] International Publication No. 2014 / 119150 Patent No. 6947829 Chinese Utility Model No. 205006103 Japanese Patent Application Laid-Open No. 2013-99425

[0008] The fastener element made of a monofilament as in Patent Document 1 is easily deformed, and therefore requires an additional member such as an element fixing member, which inevitably increases costs during mass production. The present inventors have discovered a new problem: to provide a fastening part that can be attached to an article and is suitable for mass production.

[0009] A fastening part according to one aspect of the present disclosure is an elongated fastening part that can be attached to an edge of an article directly or via an intervening object. The fastening part includes an attachment surface provided on one side in a thickness direction of the fastening part, which is perpendicular to the longitudinal direction of the fastening part, and an engagement structure provided on the opposite side of the thickness direction of the fastening part from the attachment surface. The engagement structure includes one or more rows of engagement elements arranged along the longitudinal direction of the fastening part. Each engagement element is provided upright on the opposite side of the attachment surface.

[0010] A slide fastener according to one aspect of the present disclosure includes left and right fastening parts and a slider that can move back and forth to engage and disengage the left and right fastening parts. The left fastening part is a part that is elongated in the front-to-rear direction and is sewn with a sewing thread to the left edge of an opening of an article to which the slide fastener is attached, either directly or via an intervening element, and includes at least one left engaging element row in which left engaging elements are arranged along the longitudinal direction of the left fastening part. The left engaging elements protrude to the right side, opposite the left edge of the opening. The right fastening part is a part that is elongated in the front-to-rear direction and is sewn with a sewing thread to the right edge of the opening of the article, either directly or via an intervening element, and includes at least one right engaging element row in which right engaging elements are arranged along the longitudinal direction of the right fastening part. The right engaging elements protrude to the left side, opposite the right edge of the opening. Each of the left and right fastening parts further includes one or more upper slits extending downward from its upper edge toward its lower edge, and one or more lower slits extending upward from its lower edge toward its upper edge, and the upper and lower slits may be formed with a length that exceeds half the vertical width of each of the left and right fastening parts.

[0011] A fabric with fastening parts according to one aspect of the present disclosure is a fabric with fastening parts, which are long fastening parts sewn to the folded end of the fabric with sewing thread either directly or via an intervening object, and which include a row of engaging elements arranged along the longitudinal direction of the fastening part, with each engaging element standing upright on the opposite side to the folded end.

[0012] A method for manufacturing a fabric with fastening parts according to one aspect of the present disclosure includes the steps of attaching fastening parts to a fabric along the side edge of the fabric at a position spaced inward from the side edge, the fastening part including a row of engaging elements extending longitudinally along the side edge of the fabric and arranged along the length of the fastening part, each engaging element standing upright on the opposite side of the fabric, and folding the fabric to form a folded end to which the fastening part is or will be attached. The step of attaching the fastening part to the fabric includes sewing the fastening part to the fabric with a sewing thread, after which the fabric can be folded and the fastening part can be rotated. By rotating the fastening part, the engaging elements of the fastening part can be oriented so that their protruding direction is perpendicular to the thickness direction of the portion of the fabric other than the folded end.

[0013] In the above-mentioned various aspects of the present disclosure, the fastening part may include the features recited in the dependent claims and any combination thereof.

[0014] According to one aspect of the present disclosure, it is possible to provide a fastening part that can be attached to an article and is suitable for mass production.

[0015] 7 is a schematic perspective view of a slide fastener according to one embodiment of the present disclosure; FIG. 8 is a schematic top view of the slide fastener attached to a fabric; FIG. 9 is a schematic cross-sectional view of the slide fastener attached to a fabric; FIG. 10 is a schematic partial perspective view of a fastening part, showing an attachment surface provided on one side in the thickness direction thereof; FIG. 11 is a schematic partial perspective view of the fastening part, showing an engagement structure provided on the opposite side of the attachment surface in the thickness direction thereof; FIG. 12 is a schematic side view of the fastening part, particularly showing an engagement element row, recesses, and slits; FIG. 13 is a schematic cross-sectional view of the fastening part taken along the dashed dotted line in FIG. 6; FIG. 14 is a schematic view showing engagement and disengagement of the left and right fastening parts by forward and backward movement of the slider; FIG. 15 is a manufacturing process diagram of the fastening part; FIG. 16 is a process diagram of attaching the fastening part to a fabric; FIG. 17 is a process diagram of attaching the fastening part to a fabric; FIG. 18 is a process diagram of attaching the fastening part to a fabric; FIG. 19 is a process diagram of attaching the fastening part to a fabric; FIG. 19 is a process diagram of attaching the fastening part to a fabric; FIG. 19 is a process diagram of attaching the fastening part to a fabric; FIG. 19 is a schematic view of an attachment process of another example in which an intermediate sheet is provided between the fabric and the fastening part; FIG. 19 is a schematic view of a slide fastener according to another embodiment. Fig. 2 is a schematic cross-sectional view of a slide fastener according to another embodiment; Fig. 3 is a partial perspective view of a fastening device; Fig. 4 is a partial perspective view of a fastening part; Fig. 5 is a partial side view of a fastening part; Fig. 6 is a side view of a fastening part.

[0016] Non-limiting embodiments and features of the present invention will be described below with reference to the drawings. Those skilled in the art will be able to combine the various embodiments and / or features without the need for excessive explanation, and will also be able to understand the synergistic effects of such combinations. Duplicate descriptions between embodiments will generally be omitted. The reference drawings are primarily intended to describe the invention, and are simplified for ease of illustration. Each feature is not limited to the fastening part disclosed in this specification, but is understood as a universal feature applicable to various other fastening parts not disclosed in this specification.

[0017] In this specification, the movement direction of the slider 8 that opens and closes the slide fastener 1 is referred to as the front-to-rear direction (see the double-headed arrow FB in FIG. 1). The direction that is equal to the width direction of the slide fastener 1 and perpendicular to the front-to-rear direction is referred to as the left-to-right direction (see the double-headed arrow LR in FIG. 1). The direction that is equal to the thickness direction of the slide fastener 1 and perpendicular to the front-to-rear direction is referred to as the up-to-down direction. Note that the up-to-down direction is perpendicular to both the front-to-rear and left-to-right directions. The up-to-down direction does not necessarily mean the vertical direction (the direction of gravity). For example, when the longitudinal direction of the slide fastener 1 is arranged vertically, the up-to-down direction with respect to the slide fastener 1 is included in the horizontal direction (perpendicular to the vertical direction). Thus, the directions referred to in this specification are unrelated to the vertical direction.

[0018] The following description will be given with reference to Figures 1 to 3. Figure 1 is a schematic perspective view of a slide fastener 1 according to one embodiment of the present disclosure. Figure 2 is a schematic top view of the slide fastener 1 attached to a piece of fabric as an article 9. Figure 3 is a schematic cross-sectional view of the slide fastener 1 attached to the piece of fabric.

[0019] The slide fastener 1 includes a pair of left and right fastening parts 2, 2' serving as a fastening device 2A, and a slider 8 that can move forward and backward to engage and disengage the pair of left and right fastening parts 2, 2'. The left and right fastening parts 2, 2' are engaged by moving the slider 8 forward, and disengaged by moving the slider 8 backward. The left and right fastening parts 2, 2' can be engaged in a hook-to-hook configuration. The fastening parts 2, 2' are typically made of flexible resin, such as polyester. Due to their regular longitudinal structure, the fastening parts 2, 2' can be mass-produced using various molding techniques. By manufacturing the fastening parts 2, 2' very long (e.g., 10 m), they can be cut out to any desired length (e.g., 50 cm). This ability to manufacture the fastening parts 2, 2' without considering the final product length is one advantage for mass production. Depending on the application, it may be possible to manufacture the fastening parts 2, 2' to be harder and reduce their flexibility.

[0020] The slider 8 includes an upper blade 81, a lower blade 82, and a connecting post 83 extending vertically and connecting the front ends of the upper blade 81 and the lower blade 82, thereby defining a Y-shaped passage for the left and right fastening parts 2, 2'. The slider 8 is typically made of resin, metal, or ceramics. Upper flange walls 86 are provided on the left and right edges of the upper blade 81, extending downward. Similarly, lower flange walls 87 are provided on the left and right edges of the lower blade 82, extending upward. In this way, the movement paths of the left and right fastening parts 2, 2' in the width direction of the slider 8 are restricted. The vertical distance between the upper blade 81 and the lower blade 82 is designed to correspond to the width of the fastening parts 2, 2', as described below.

[0021] The fastening parts 2, 2' are long parts that can be attached to an edge 91 of an article 9 directly or via an intervening object (e.g., a flexible thin material such as another fabric) (see FIGS. 2 and 3). The article 9 to which the fastening parts 2, 2' are directly attached is a highly flexible fabric such as the fabric of a garment, a bag, or a shoe. The edge 91 of the article 9 is an edge that defines an opening that is opened and closed by the slide fastener 1. In some cases, the edge 91 is a folded edge formed by folding the fabric, which promotes efficient sewing of the fastening parts 2, 2' to the fabric, as will be described later. When the fabric is folded, the fabric has a main fabric 92 and a secondary fabric 93 (see FIG. 3), which are overlapped and a folded edge is formed between them. The main fabric 92 and the secondary fabric 93 may be sewn together with one or more sewing threads 200 along the side edge 95 of the secondary fabric opposite the folded end.

[0022] In some cases, the width W2 of the fastening parts 2, 2' in the vertical direction is greater than the width W91 of the article 9 (the laminated thickness of the main fabric 92 and the secondary fabric 93). Advantageously, the protruding height H2 of the fastening parts 2, 2' from the main surface (the upper surface of the main fabric 92) of the article 9 is 1 cm or less (i.e., within a range of 0 to 1 cm), or 0.8 cm or less (i.e., within a range of 0 to 0.8 cm). Note that the main surface of the article 9 refers to either its upper surface or lower surface. Depending on the type or condition of the article 9, it is also possible to envision a configuration in which the width W2 of the fastening parts 2, 2' is equal to or less than the width W91 of the article 9 (the laminated thickness of the main fabric 92 and the secondary fabric 93).

[0023] Just to be clear, when the fastening parts 2, 2' are directly attached to the fabric, omitting the fastener tape promotes weight reduction of the fabric with the fastening parts, increases its flexibility, and improves its appearance. Note that this disclosure does not exclude the use of fastener tape as the article 9 unless explicitly excluded by the phrase "article (excluding fastener tape)."

[0024] The structure of the fastening parts 2, 2' will be described with reference to Figures 4 to 7. Figure 4 is a schematic partial perspective view of the fastening parts 2, 2', showing the mounting surface 2a provided on one side in the thickness direction. Preferably, the fastening parts 2, 2' are formed mirror-symmetrically with respect to the center line CX. Figure 5 is a schematic partial perspective view of the fastening parts 2, 2', showing the engaging structure 2b provided on the opposite side of the mounting surface 2a in the thickness direction. Figure 6 is a schematic side view of the fastening parts 2, 2', particularly showing the engaging element rows 21-24, the recess 55, and the slits S1, S2. Figure 7 is a schematic cross-sectional view of the fastening parts 2, 2' taken along the dashed line in Figure 6. Directions related to the fastening parts 2, 2' can be associated with directions related to the slide fastener 1 as follows: The longitudinal direction of the fastening parts 2, 2' coincides with the front-to-rear direction of the slide fastener 1. The width direction of the fastening parts 2, 2' coincides with the up-down direction of the slide fastener 1. The thickness direction of the fastening parts 2, 2' coincides with the left-right direction of the slide fastener 1.

[0025] The fastening parts 2, 2' have an attachment surface 2a (FIG. 4) provided on one side in their thickness direction, which is perpendicular to their longitudinal direction, and an engagement structure 2b (FIG. 5) provided on the opposite side of the attachment surface 2a in the thickness direction of the fastening parts 2, 2'. The thickness (thickness direction) of the fastening parts 2, 2' can be defined as the height (height direction) of the engagement structure 2b from the attachment surface 2a. The engagement structure 2b of the fastening parts 2, 2' is provided so as to face or abut against the engagement structure of the mating fastening part, and is engageable therewith. The attachment surface 2a of the fastening parts 2, 2' is provided so as to at least partially face or at least partially abut against, and is attachable to, the edge 91 of the article 9 to which the fastening parts 2, 2' are attached. The attachment surface 2a may have at least a partially flat surface, but is not limited to this embodiment. The flat surface of the attachment surface 2a may be oriented perpendicular to the left-right direction of the slide fastener 1.

[0026] The engagement structure 2b includes one or more rows of engagement elements 30 arranged along the longitudinal direction of the fastening parts 2, 2′. In the illustrated example, the engagement structure 2b includes four rows of engagement elements 21-24 arranged side by side in the width direction of the fastening parts 2, 2′ (see, for example, FIGS. 4 to 6). The engagement element rows 21-24 may be distinguished by being referred to as the first to fourth engagement element rows 21-24, respectively. Each engagement element 30 is hook-shaped (not loop-shaped) and includes a base 31 standing on the side opposite the mounting surface 2a and at least one protrusion 32 protruding from the base 31 along the longitudinal direction of the fastening parts 2, 2′ (see, for example, FIG. 7). Receiving spaces 33 are formed between adjacent engagement elements 30 in the engagement element rows 21-24 to receive the engagement elements of the mating fastening part. The width W33 of the receiving space 33 in the thickness direction of the fastening parts 2, 2' can gradually increase as it moves away from the base 31 along the protruding direction of the projection 32.

[0027] As shown in Figure 6, engaging element rows 21, 23 in which the projections 32 protrude in opposite directions relative to the longitudinal direction of the fastening parts 2, 2' can be arranged adjacent to each other as a pair. The same applies to engaging element rows 22, 24. In this case, the force required to engage or disengage the fastening parts 2, 2' increases, thereby increasing the lateral pull strength of the slide fastener 1. The arrangement direction of the engaging elements 30 in engaging element rows 21-24 coincides with the longitudinal direction of the fastening parts 2, 2'. When two or more engaging element rows 21-24 are provided, the arrangement direction of these engaging element rows 21-24 coincides with the width direction of the fastening parts 2, 2'.

[0028] The structure of the fastening parts 2, 2' (particularly the structure of the engaging element rows 21-24) can be described as being formed by alternatingly connecting engaging elements 30 and connecting portions 70 (see FIG. 7). The connecting portions 70 are thin portions that connect the engaging elements 30. The minimum thickness of the fastening parts 2, 2' is determined by the upper and lower surfaces of the connecting portions 70. A groove 36, which will be described later, may be formed between adjacent connecting portions 70 in the longitudinal direction of the fastening parts 2, 2'. Furthermore, a groove 37, which will be described later, and slits S1 and S2 may be formed in each connecting portion 70.

[0029] The fastening parts 2, 2' may further include an attachment portion 27 extending in the longitudinal direction thereof. The attachment portion 27 may be one continuous portion or a portion divided into multiple portions along the longitudinal direction of the fastening parts 2, 2'. The fastening parts 2, 2' are attached to the edge portion 91 of the article 9 at their attachment portions 27 other than the locations where the engaging element rows 21-24 are formed, either directly or via an intervening object. Advantageously, the attachment portion 27 is provided between adjacent engaging element rows (e.g., engaging element row 21 and engaging element row 22) in the width direction of the fastening parts 2, 2', and is preferably provided on the center line CX of the fastening parts 2, 2'. This facilitates arranging the engaging element rows 21, 22 (and, optionally, the engaging element rows 23, 24) on both sides of the attachment portion 27 on both sides of the center of thickness of the edge portion 91 (see plane PL0 in Figure 3), allowing the edge portions 91 of the article 9 to be joined together well via the fastening device 2A. In Figure 3, a sewing thread 96 for sewing to the edge portion 91 of the attachment portion 27 can be present or included in the plane PL0 located at the center of thickness of the edge portion 91. The main fabric 92 and the secondary fabric 93 are arranged on both sides of the plane PL0.

[0030] The attachment portion 27 may be formed thinner than the engaging element 30 in the thickness direction of the fastening parts 2, 2′. When the fastening parts 2, 2′ are sewn to the edge portion 91, a sewing needle can penetrate the attachment portion 27 with less force. When the fastening parts 2, 2′ are welded to the edge portion 91, the heat capacity of the attachment portion 27 is reduced, promoting smoother welding. The attachment portion 27 may be formed thinner than the connecting portion 70 in some cases. In some cases, the attachment portion 27 may be provided as a thick portion having a thickness (constant or variable) from a bottom surface 53g of the receiving groove 53 described below, or as a wall having a height (constant or variable) from the bottom surface 53g of the receiving groove 53 described below. The attachment portion 27 may directly contact the article 9 at the bottom surface 53g of the receiving groove 53.

[0031] Additionally or alternatively, the attachment portion 27 may be formed narrower than any of the engaging element rows 21 to 24 in the width direction of the fastening parts 2, 2′. This facilitates forming the engaging element rows 21 to 24 (and each engaging element 30) with a desired wide width. Optionally, the first and third engaging element rows 21, 23 are immediately adjacent to each other in the width direction of the fastening parts 2, 2′ with a gap smaller than the attachment portion 27, and the second and fourth engaging element rows 22, 24 are immediately adjacent to each other with a gap smaller than the attachment portion 27, thereby facilitating a high-density arrangement of the engaging element rows.

[0032] At least one recess 55 is formed in the attachment portion 27 to receive a stitch 97 of a sewing thread 96 for sewing the fastening parts 2, 2′ to the edge portion 91. Typically, the attachment portion 27 is formed as a wall with at least one recess 55 formed on its top surface. When the fastening parts 2, 2′ of the fastening device 2A are engaged with each other, the top surfaces of the walls of the attachment portions 27 of the fastening parts 2, 2′ are adjacent to each other and / or are arranged facing each other (with or without a sewing thread sandwiched between them). A plurality of recesses 55 may be provided at a predetermined pitch (corresponding to the pitch of the stitch 97) along the longitudinal direction of the fastening parts 2, 2′ (more preferably along the center line CX of the fastening parts 2, 2′). Each recess 55 of the plurality of recesses 55 is preferably elongated in the longitudinal direction of the fastening parts 2, 2′. A sewing needle penetrates the thinned portions of the fastening parts 2, 2′ due to the recesses 55, making it easier to sew the fastening parts 2, 2′ to the article 9. It is also possible to provide additional recesses 55 in the fastening parts 2, 2′ at positions other than the attachment portion 27. It should also be noted that the attachment portion 27 can be provided at a position other than between the first engaging element row 21 and the second engaging element row 22 that are adjacent in the width direction of the fastening parts 2, 2′.

[0033] The fastening parts 2, 2' may have guide walls 25, 26 on both sides (typically, on both side edges of the fastening parts 2, 2') sandwiching the engaging element rows 21-24 in the width direction. The guide walls 25, 26 may be provided at positions furthest from the center line CX of the fastening parts 2, 2' in the width direction of the fastening parts 2, 2'. The guide wall 25 can contact one of the lower surface of the upper blade 81 or the upper surface of the lower blade 82 of the slider 8, and the guide wall 26 can contact the other of the lower surface of the upper blade 81 or the upper surface of the lower blade 82 of the slider 8. This assists smooth movement of the slider 8 along the fastening parts 2, 2' and prevents damage to the engaging elements 30 due to collision between the slider 8 and the engaging elements 30. In the slide fastener 1, the engaging element rows 21-24, guide walls 25, 26, and attachment portion 27 are arranged in the vertical direction.

[0034] One or more of the guide walls 25 and 26 may be configured as a wall row in which a plurality of wall sections are provided at a predetermined pitch along the longitudinal direction of the fastening parts 2, 2′ so as not to reduce the flexibility of the fastening parts 2, 2′. The same applies to the attachment portion 27. Referring to FIG. 5 , the guide wall 25 has wall sections 25g arranged at a predetermined pitch (equal to the pitch of the engaging elements 30) along the longitudinal direction of the fastening parts 2, 2′, with grooves 25j formed between them. The grooves 25j spatially communicate with the receiving spaces 33 formed between the engaging elements 30 in the width direction of the fastening parts 2, 2′. The description of the guide wall 25 also applies to the guide wall 26, where wall section 25g is replaced with wall section 26g and groove 25j is replaced with groove 26j. The explanation given for the guide wall 25 also applies to the attachment portion 27, except that the wall portion 25g is replaced by the wall portion 27g and the groove 25j is replaced by the groove 27j. In this way, the flexibility of the fastening parts 2, 2' can be increased.

[0035] The mounting surface 2a is provided with at least one guide protrusion 51, 52 located between the upper and lower flange walls 86, 87 of the slider 8. When a pair of fastening parts 2, 2' are accommodated in the moving path between the upper and lower blades 81, 82 of the slider 8, the guide protrusions 51, 52 provided on the mounting surface 2a of each fastening part 2, 2' are located between the upper and lower upper and lower flange walls 86, 87 of the slider 8. In the illustrated example, two guide protrusion rows 61, 62 are provided on the mounting surface 2a, with the guide protrusions 51, 52 arranged in the longitudinal direction of the fastening parts 2, 2' (see FIG. 4). The guide protrusions 51, 52 are located away from both ends of the fastening parts 2, 2' in the width direction of the fastening parts 2, 2', forming guide surfaces 56, 57 at both ends of the fastening parts 2, 2' in the width direction. As a result, interference between the fastening parts 2, 2' and the upper and lower flange walls 86, 87 of the slider 8 is avoided on both widthwise sides of the fastening parts 2, 2', and in short, stable engagement is achieved between the fastening parts 2, 2' and the slider 8, allowing the slider 8 to slide. Specifically, the guide surfaces 56, 57 face or contact the upper and lower flange walls 86, 87 of the slider 8, thereby restricting movement of the fastening parts 2, 2' in the widthwise direction of the slider 8 and promoting smooth movement of the slider 8. The guide surfaces 56, 57 are typically formed as flat surfaces, but are not limited to this.

[0036] Each guide protrusion 51 has a first side surface 51p and a second side surface 51q in the width direction of the fastening parts 2, 2'. Similarly, each guide protrusion 52 has a first side surface 52p and a second side surface 52q in the width direction of the fastening parts 2, 2'. In the slide fastener 1, the first side surface 51p of the guide protrusion 51 faces or contacts the lower surface of the upper flange wall 86, thereby assisting smooth movement of the slider 8. Similarly, the first side surface 52p of the guide protrusion 52 faces or contacts the upper surface of the lower flange wall 87, thereby assisting smooth movement of the slider 8. The second side surface 51q of the guide protrusion 51 faces the opposite side to the first side surface 51p, and is positioned opposite the second side surface 52q of the guide protrusion 52 across the center line CX of the fastening parts 2, 2'. The second side surface 52q of the guide protrusion 52 faces the opposite side to the first side surface 52p, and is positioned opposite the second side surface 51q of the guide protrusion 51 across the center line CX of the fastening parts 2, 2'. A bottom surface 53g of the receiving groove 53 of the edge portion 91 is formed between the second side surfaces 51q, 52q of the guide protrusions 51, 52. Note that the first and second side surfaces of the slide fastener 1 shown in FIG. 1 can alternatively be referred to as upper and lower surfaces.

[0037] The provision of the above-described guide protrusions 51, 52 helps ensure a sufficiently wide vertical gap between the upper flange wall 86 and the lower flange wall 87 (see FIG. 3). Specifically, a gap is provided between the main fabric 92 and the upper flange wall 86, reducing or preventing wear thereon. Additionally or alternatively, a gap is provided between the secondary fabric 93 and the lower flange wall 87, reducing or preventing wear thereon. In some cases, the gap between the lower surface of the upper flange wall 86 and the upper surface of the lower flange wall 87 is slightly larger than the gap W9 (see FIG. 4) between the first side surfaces 51p, 52p of the guide protrusions 51, 52 of the fastening parts 2, 2′.

[0038] As described above, by forming the receiving groove 53 between the guide protrusions 51, 52 to receive the edge portion 91, the fastening parts 2, 2′ can be more stably supported by the edge portion 91 of the article 9. Of course, this is not limiting, and the guide protrusions 51, 52 can also be connected to each other in the width direction of the fastening parts 2, 2′ to form a single guide protrusion.

[0039] To enhance the flexibility of the fastening parts 2, 2′, grooves 36 may be recessed in the mounting surface 2a, penetrating (removing) the bases 31 of the engaging elements 30. The grooves 36 extend in the width direction of the fastening parts 2, 2′ with a constant or variable depth D36. The grooves 36 are formed in the longitudinal direction of the fastening parts 2, 2′ at the same pitch P1 as the pitch P1 of the engaging elements 30. Of course, the pitch of the grooves 36 may also be a multiple of the pitch of the engaging elements 30. The grooves 36 may extend across the entire width of the fastening parts 2, 2′ and, for example, penetrate the guide walls 25, 26 and the wall portions 25g, 26g, and 27g of the attachment portion 27. As a result, one open end of the groove 36 is formed on the side surface of the guide wall 25 in the width direction of the fastening parts 2, 2′, and the other open end of the groove 36 is formed on the side surface of the guide wall 26. In the longitudinal direction of the fastening parts 2, 2', each groove 36 is sandwiched between the guide protrusions 51 that are arranged adjacently in the same direction, and similarly, is sandwiched between the guide protrusions 52.

[0040] To increase the flexibility of the fastening parts 2, 2', grooves 37 can be formed between adjacent engaging elements 30 in the longitudinal direction of the fastening parts 2, 2' to thin the fastening parts 2, 2'. Grooves 36 and grooves 37 are formed alternately in the longitudinal direction of the fastening parts 2, 2'. Grooves 36 can be formed deeper than grooves 37 by the amount that they penetrate through the bases 31 of the engaging elements 30, but this is not necessarily the case. The pitch P2 of the grooves 37 is the same as the pitch P1 of the engaging elements 30, but can also be a multiple of it.

[0041] Multiple slits S1, S2 can be formed in the fastening parts 2, 2' extending in the width direction. Each of the multiple slits S1, S2 is located between adjacent engaging elements 30 in the longitudinal direction of the fastening parts 2, 2'. In this way, the fastening parts 2, 2' become more easily deformed (e.g., more easily bent in the left-right and / or up-down directions, or more easily twisted). By forming the slits S1, S2 in the fastening parts 2, 2', it is expected that the fastening parts 2, 2' will be more easily bent in accordance with the deformation of the edge 91 when attached to the edge 91 of the article 9. Preferably, each of the multiple slits S1, S2 is formed with a length exceeding half the width of the fastening parts 2, 2'. Note that the slit S1 is an upper slit extending downward from the upper edge of the fastening parts 2, 2' toward the lower edge. The slit S2 is a lower slit extending upward from the lower edge of the fastening parts 2, 2' toward the upper edge.

[0042] As can be seen from the above description, the fastening parts 2, 2' according to the present disclosure have an attachment surface 2a (FIG. 4) provided on one side in the thickness direction, which is perpendicular to the longitudinal direction, and an engagement structure 2b (FIG. 5) provided on the opposite side of the attachment surface 2a in the thickness direction of the fastening parts 2, 2'. The engagement structure 2b includes one or more engagement element rows 21-24 in which engagement elements 30 are arranged along the longitudinal direction of the fastening parts 2, 2'. Each engagement element 30 is provided upright on the opposite side from the attachment surface 2a. In this way, a fastening part 2, 2' is provided that can be directly attached to an article 9 and is suitable for mass production.

[0043] To reiterate, the fastening parts 2, 2' can be attached directly to the edge 91 of the article 9. Therefore, by using these fastening parts 2, 2', a slide fastener 1 can be constructed without fastener tape. Advantageously, the fastening parts 2, 2' are selectively attached to the article 9 at one location on the attachment portion 27 in the width direction (which may include the bottom surface 53g of the receiving groove 53). As mentioned above, the attachment portion 27 may be elongated in the longitudinal direction of the fastening parts 2, 2'. When the above-mentioned fastening parts 2, 2' are used as the left and right fastening parts 2, 2', the slide fastener 1 will have the following features. The left fastening part 2 is a part elongated in the front-to-rear direction and sewn with a sewing thread 96 directly or via an intervening object to the left edge of the opening of the article 9 to which the slide fastener 1 is attached, and includes at least one left-side engaging element row in which left-side engaging elements are arranged along the longitudinal direction of the left fastening part 2, the left-side engaging elements protruding to the right side opposite the left edge of the opening. The right fastening part 2' is a part elongated in the front-to-rear direction and sewn with a sewing thread 96 directly or via an intervening object to the right edge of the opening of the article 9, and includes at least one right-side engaging element row in which right-side engaging elements are arranged along the longitudinal direction of the right fastening part 2', the right-side engaging elements protruding to the left side opposite the right edge of the opening. By interpreting the directions relative to the fastening parts 2, 2' as directions relative to the slide fastener 1 (up-down direction, front-to-rear direction, left-to-right direction), the various features described above for the fastening parts 2, 2' can also be applied to the slide fastener 1.

[0044] 8, when the slider 8 moves forward, the engaging elements 30 that have entered the slider 8 from the front openings thereof move through the passages of width between the connecting post 83 and the upper and lower flange walls 86, 87, then engage with the mating engaging elements 30 at a position behind the connecting post 83, and finally move out of the slider 8 through the rear openings of the slider 8. When the slider 8 moves backward, the engaged left and right engaging elements 30 enter the slider 8 through the rear openings of the slider 8, are disengaged at a position behind the connecting post 83, move through the left and right passages of the connecting post 83, and finally move out of the slider 8 through the left and right front openings of the connecting post 83. The guide protrusions 51, 52 are sandwiched between the upper and lower flange walls 86, 87 on the top and bottom of the slider 8, promoting stable sliding movement of the slider 8. Thanks to the grooves 36 and / or grooves 37 formed in the fastening parts 2, 2', the fastening parts 2, 2' have increased flexibility, which reduces the sliding resistance of the slider 8.

[0045] 9, the fastening parts 2, 2′ can be manufactured by supplying molten resin from a discharge portion 103 between two adjacent die wheels 101, 102. Although not shown, a cavity capable of molding the engaging structure 2b of the fastening parts 2, 2′ is formed on one peripheral surface of the die wheels 101, 102, and a cavity capable of molding the structure on the mounting surface 2a side of the fastening parts 2, 2′ is formed on the other peripheral surface.

[0046] When the article 9 is a piece of fabric, the fastening part 2 can be directly attached to the fabric by the procedures shown in Figures 10 to 12 (the same applies to the fastening part 2'). In Figure 10, the fastening part 2 is sewn to the fabric (e.g., at its attachment portion 27) using sewing thread 96 along the side edge 95 at a position spaced inward from the side edge 95 of the fabric (i.e., at a position spaced apart from and parallel to the vertical plane PL1 relative to the side edge 95). The fastening part 2 is selectively attached to a predetermined portion of the fabric (the portion that will become the folded end, as described below) at its attachment portion 27, while other portions (e.g., portions where the engaging element rows 21-24 are provided) are not attached to the fabric. Note that when the fastening part 2 is placed on the mounting surface 98 of the article 9, the protruding direction of the engaging elements 30 coincides with the direction away from the mounting surface 98 of the article 9 (e.g., perpendicular direction). As a sewing method, various methods can be used, such as a lock stitch, a single chain stitch, a double chain stitch, etc. The sewing direction of the sewing thread 96 coincides with the longitudinal direction of the fastening part 2.

[0047] In addition to or instead of sewing, the fastening part 2 can also be fixed to the article 9 by ultrasonic welding. The fastening part 2 is placed on the placement surface 98 of the article 9 so that the attachment surface 2a of the fastening part 2 (e.g., the bottom surface 53g of the receiving groove 53 between the guide protrusions 51 and 52) comes into contact with the placement surface 98 of the article 9. The shape of the anvil is optimized to ensure reliable contact between the fastening part 2 and the article 9. In some cases, the anvil is provided with a protrusion that protrudes between the guide protrusions 51 and 52.

[0048] Next, the horn is brought into contact with the fastening part 2 (e.g., its attachment portion 27) to supply ultrasonic vibrations to the fastening part 2. At this time, the fastening part 2 (e.g., the bottom surface 53g of the receiving groove 53) and the article 9 are welded together on the side opposite to the contact position of the horn (e.g., the attachment portion 27). The horn is moved in the longitudinal direction of the fastening part 2, or the fastening part 2 is moved relative to the horn, which is stationary in a predetermined position. In this way, a weld can be formed continuously or intermittently in the longitudinal direction of the fastening part 2, thereby fixing the fastening part 2 to the article 9. Both the fastening part 2 and the article 9 are made of resin.

[0049] In Figure 11, the fabric is folded to form a folded edge (the aforementioned edge 91) to which the fastening part 2 is sewn. For example, the secondary fabric 93 is overlapped on the main fabric 92 to form the folded edge, and at the same time, the fastening part 2 is rotated 90° relative to the support surface 98 of the article 9. By rotating the fastening part 2, the protruding direction of the engaging elements 30 of the fastening part 2 changes by 90° and is oriented so as to be perpendicular to the thickness direction of the portion of the fabric other than the folded edge (e.g., the main fabric 92). More generally, the protruding direction of the engaging elements 30 changes from perpendicular to parallel to the support surface 98 of the article 9 (e.g., the main fabric 92). Furthermore, the engaging element rows 21, 22 on both sides of the attachment portion 27 are arranged side by side in the thickness direction of the main fabric 92 and are arranged on both sides of the plane PL0 as described above, thereby achieving the same benefits as described above (see Figure 3). 11 may be performed before the attaching step shown in FIG. 10. In this case, the fabric is folded back to form a folded edge to which the fastening part 2 is sewn. This method may be more suitable for ultrasonic welding. In FIG. 12, fabric parts (e.g., the main fabric 92 and the sub-fabric 93) are sewn together near the side edges 95 of the fabric with a sewing thread 200. If the article 9 is something other than fabric, the fastening part 2 may be attached to it in a manner different from that described above.

[0050] As shown in Figure 13, as a non-limiting example of an intervening material, the fastening parts 2, 2' can be sewn to the fabric via an intermediate sheet 99. The intermediate sheet 99 can be a thin material such as fabric or a resin sheet. In this case, the fabric can be folded over in the same manner as in Figure 11.

[0051] Another structure of the fastening parts 2, 2' will be further described with reference to Figures 14 to 19. As described above, the slide fastener 1 has left and right fastening parts 2, 2' and a slider 8, and the left and right fastening parts 2, 2' can be engaged and disengaged in response to the forward and backward movement of the slider 8. Typically, the fastening parts 2, 2' are directly attached to the article 9, and the omission of the interposition of a woven and / or knitted fastener tape promotes weight reduction and / or cost reduction.

[0052] The fastening parts 2, 2' have first and second engaging element rows 21, 22, a receiving portion 27, and a substrate 40. Each of the first and second engaging element rows 21, 22 includes a plurality of engaging elements 30 arranged at a predetermined pitch. The fastening parts 2, 2' include the first engaging element row 21, the receiving portion 27, and the second engaging element row 22 in the width direction, but do not have the third and fourth engaging element rows 23, 24 or the guide walls 25, 26 (i.e., a three-row structure, i.e., two rows of the first and second engaging element rows 21, 22 plus one row of the receiving portion 27), making them narrower. This improves the flexibility of the fastening device 2A when attached to the article 9. It is also possible to omit the third and fourth engaging element rows 23, 24 but not the guide walls 25, 26.

[0053] One side of the substrate 40 is the mounting surface 2a, and each engaging element 30 is provided standing on the opposite side of the mounting surface 2a. A group of engaging elements 30 are connected to a common attachment portion 27 and / or a common substrate 40 to ensure mechanical integrity and strength. Adjacent engaging elements 30 in the longitudinal direction of the fastening parts 2, 2′ are connected by connecting portions 70 that are part of the substrate 40. By forming the substrate 40 sufficiently thin (e.g., 9 mm or less, 7 mm or less, or 6 mm or less), sufficient flexibility in the longitudinal direction of the fastening parts 2, 2′ can be ensured. Including the substrate 40 in the fastening parts 2, 2′ promotes smooth molding of the fastening parts 2, 2′ and / or smooth movement of the slider 8. However, it is possible to omit all or part of the substrate 40. In some cases, all of the connecting portions 70 of the substrate 40 are omitted, and in other cases, selected one or more of the connecting portions 70 of all of the connecting portions 70 of the substrate 40 are omitted. In the former case, the connection between the engaging elements 30 is ensured only by the attachment portion 27, and in the latter case, the connection between the engaging elements 30 is ensured by the attachment portion 27 and one or more selected connection portions 70. Also, openings and / or notches may be formed by forming slits in the connection portions 70 or punching out at least a portion of the connection portions 70. It is also possible to provide guide protrusions 51, 52 on the mounting surface 2a, but forming them flat as in the illustrated example simplifies the structure of the molding tool, such as the die wheel.

[0054] The attachment portion 27 is a protrusion that extends in the longitudinal direction of the fastening parts 2, 2′ between the first and second engaging element rows 21, 22 and protrudes toward the opposite side from the mounting surface 2a. The attachment portion 27 is formed on the substrate 40 lower than the engaging elements 30, but has a thickness greater than the thickness of the substrate 40 (TH27>TH40). This provides the strength required when the fastening parts 2, 2′ are sewn to the article 9, a sufficient thickness to withstand heat welding, prevention of breakage when released from the die wheel in the manufacturing process, or other advantages. The attachment portion 27 can optionally include a reinforcing material 28, such as a braided cord, twisted cord, or piece of nonwoven fabric, extending in the extension direction of the attachment portion 27, thereby increasing its mechanical strength and / or its attachment strength to the article 9. In particular, if the reinforcing material 28 includes any one or any combination of a knitted cord, a twisted cord, and a piece of nonwoven fabric, when the fastening parts 2, 2′ are sewn together, a decrease in strength is suppressed even if a needle is pierced into the resin part of the attachment part 27. The reinforcing material 28 does not need to be embedded in the attachment part 27, but may be fixed to the attachment part 27. In this case, the reinforcing material 28 appears on the exterior of the fastening parts 2, 2′ and is visible.

[0055] Each engaging element 30 included in the first and second engaging element rows 21, 22 has two protrusions 32 that protrude on both sides in opposite directions in the longitudinal direction of the fastening parts 2, 2'. That is, rather than allocating protrusions 32 that protrude on only one side and in opposite directions to the two engaging element rows, the first and third engaging element rows 21, 23, protrusions 32 that protrude on both sides are allocated to a single engaging element row. This improves the flexibility of the fastening device 2A without significantly reducing the engaging force between the engaging elements 30 of the fastening parts 2, 2'. The two protrusions 32 include a front protrusion 32a that protrudes forward relative to the base 31 and a rear protrusion 32b that protrudes rearward relative to the base 31.

[0056] The engaging elements 30 are arranged at a first pitch in the first engaging element row 21, and at a second pitch in the second engaging element row 22. In some cases, the first pitch and the second pitch are equal, and in other cases, they are different. Setting the first and second pitches equal eliminates the distinction (or directionality) between the first and second engaging element rows 21, 22 and / or ensures a good balance between the first and second engaging element rows 21, 22 in terms of the target engaging force. Depending on the setting of the first and second pitches, the engaging elements 30 of the first and second engaging element rows 21, 22 can be arranged at least partially opposite each other in the width direction of the fastening parts 2, 2′. In the illustrated example, the first and second engaging element rows 21, 22 are formed as mirror images, and therefore the engaging elements 30 of the first and second engaging element rows 21, 22 are arranged in opposing pairs in the width direction of the fastening parts 2, 2′, achieving the same benefits as described above.

[0057] Each engaging element 30 in the first and second engaging element rows 21, 22 has a flat opposing surface 38. The spacing between the opposing surfaces 38 typically corresponds to the maximum width W27 of the attachment portion 27, but this is not necessarily required. The spacing between the opposing surfaces 38 can be changed as needed depending on the thickness of the needle used when sewing the article 9. The opposing surfaces 38 are oriented substantially perpendicular to the plane on which the substrate 40 is located, but can also be inclined. Each engaging element 30 has an opposite surface 39 on the opposite side to the opposing surface 38. The opposite surface 39 faces or comes into contact with the upper blade 81 or lower blade 82 of the slider 8 when the engaging element 30 enters the slider 8. The opposite surface 39 is a substantially flat surface that exists in a plane perpendicular to the up-down direction, thereby ensuring smooth sliding of the slider 8.

[0058] The engaging element 30 has a symmetrically constricted shape, e.g., a base 41, a neck 42, and a head 43, with the neck 42 being constricted. By employing such a constricted shape, the engaging element 30 can have two protrusions 32 that protrude not on one side but on opposite sides in the longitudinal direction of the fastening parts 2, 2′, as described above. The base 41 has a width W41 that gradually decreases toward the head 43. The neck 42 is located between the base 41 and the head 43 and has a width W42 that is narrower than both the base 41 and the head 43. The head 43 has a width W43 that gradually increases and then gradually decreases as it moves away from the neck 42. The engaging element 30 has a width in the longitudinal direction of the fastening parts 2, 2′, a width (which may also be referred to as a thickness) in the width direction of the fastening parts 2, 2′, and a height in the thickness direction of the fastening parts 2, 2′.

[0059] The space between adjacent engaging elements 30 in the longitudinal direction of the fastening parts 2, 2' comprises the receiving space 33. The heads 43 of the engaging elements 30 of the fastening part 2 are inserted between the necks 42 of adjacent engaging elements 30 of the fastening part 2'. The base 41 has two side surfaces 41a, 41b standing up from the substrate 40, and each connects the opposing surface 38 to the opposite surface 39. A gap that communicates with the receiving space 33 is formed between the opposing side surfaces 41a, 41b of adjacent engaging elements 30, thereby ensuring sufficient flexibility of the fastening parts 2, 2'.

[0060] The engaging element 30 may optionally have at least two shoulder projections 44 on both sides of the neck 42 and a receiving groove 45 for receiving the shoulder projections 44 of the mating engaging element 30, providing sufficient resistance to thrusting of the slide fastener 1 in the vertical direction. When the left and right engaging elements 30 of the left and right fastening parts 2, 2' engage with each other, the shoulder projection 44 of one engaging element 30 is inserted into the receiving groove 45 of the other engaging element 30, limiting the vertical displacement of both engaging elements 30. The receiving groove 45 is recessed into the opposing surface 38 by cutting out an edge of the head 43 and is formed across the entire width of the head 43. The maximum width W44 of the shoulder projections 44 is equal to or less than half the maximum width W30 of the engaging element 30, allowing the receiving groove 45 to be formed shallow (in the width direction of the fastening parts 2, 2') and preventing a decrease in the mechanical strength of the head 43.

[0061] The fastening parts 2, 2' described above with reference to Figures 14 to 19 can be manufactured using the same manufacturing method as that shown in Figure 9, and can be attached using the same attachment method as that shown in Figures 10 to 12, so duplicate explanations will be omitted.

[0062] In light of the above disclosure, those skilled in the art can make various modifications to each feature and each embodiment. The reference numerals used in the claims are for reference purposes only and should not be used to limit the scope of the claims. In the illustrated example, the mounting surface 2a contacts the item 9 at its receiving groove 53 (particularly the bottom surface 53g), but does not contact the item 9 at its guide surfaces 56 and 57. However, the mounting surface 2a can be understood as a whole as long as it includes a region facing or contacting the item 9.

Claims

1. A long fastening part (2, 2') that can be attached directly or via an intermediate part to an edge (91) of an article (9), an attachment surface (2a) provided on one side of the fastening parts (2, 2') in a thickness direction perpendicular to the longitudinal direction of the fastening parts; an engagement structure (2b) provided on the opposite side of the mounting surface (2a) in the thickness direction of the fastening parts (2, 2'); The fastening part, wherein the engaging structure (2b) includes one or more engaging element rows (21-24) in which engaging elements (30) are arranged along the longitudinal direction of the fastening parts (2, 2'), and each engaging element (30) is provided upright on the side opposite to the mounting surface (2a).

2. The fastening part further includes an attachment portion (27) extending in the longitudinal direction of the fastening parts (2, 2'), 2. The fastening part according to claim 1, wherein the fastening part (2, 2') is attachable at the attachment portion (27) to an edge (91) of the article (9) directly or via an intermediate part.

3. The fastening part according to claim 2, wherein the one or more rows of engaging elements (21-24) include first and second engaging element rows (21, 22) arranged side by side in a width direction perpendicular to the longitudinal direction and thickness direction of the fastening part (2, 2'), and the attachment portion (27) is provided between the first and second engaging element rows (21, 22).

4. The fastening part according to claim 3, wherein the attachment portion (27) is formed thinner than the engaging element (30) in the thickness direction of the fastening part (2, 2') and / or narrower than both of the first and second engaging element rows (21, 22) in the width direction of the fastening part (2, 2').

5. 4. A fastening part according to claim 3, wherein the attachment portion (27) comprises at least one recess (55) for receiving a stitch (97) of a sewing thread (96) for sewing the fastening part (2, 2') to the edge portion (91).

6. A fastening part as described in claim 5, wherein the at least one recess (55) includes a plurality of recesses (55) arranged along the longitudinal direction of the fastening part (2, 2'), and each recess (55) of the plurality of recesses (55) is elongated in the longitudinal direction of the fastening part (2, 2').

7. The fastening part according to claim 3, wherein the one or more rows of engaging elements (21 to 24) further include third and fourth engaging element rows (23, 24) sandwiching the first and second engaging element rows (21, 22) in the width direction of the fastening part (2, 2'), the first and third engaging element rows (21, 23) are immediately adjacent to each other in the width direction of the fastening part (2, 2') with a gap smaller than the attachment portion (27), and the second and fourth engaging element rows (22, 24) are immediately adjacent to each other with a gap smaller than the attachment portion (27).

8. A fastening part as described in any one of claims 1 to 7, further comprising a plurality of slits (S1, S2) extending in a width direction perpendicular to the longitudinal direction and thickness direction of the fastening part (2, 2'), each of the plurality of slits (S1, S2) being positioned between adjacent engaging elements (30) in the longitudinal direction of the fastening part (2, 2').

9. The fastening part according to claim 8, wherein each of the plurality of slits (S1, S2) is formed to have a length exceeding half the width of the fastening part (2, 2').

10. At least one of the following conditions (i) to (iii) is satisfied: (i) at least one guide protrusion (51, 52) is provided on the mounting surface (2a), and the at least one guide protrusion (51, 52) is located away from both ends of the fastening parts (2, 2') in a width direction perpendicular to the longitudinal direction and thickness direction of the fastening parts (2, 2'); (ii) at least two guide protrusion rows (61, 62) are provided on the mounting surface (2a), each of the at least two guide protrusion rows (61, 62) includes a plurality of guide protrusions (51, 52) arranged along the longitudinal direction of the fastening part (2, 2'), and a receiving groove (53) for receiving the edge portion (91) is formed between the guide protrusions (51, 52) of the different adjacent guide protrusion rows (61, 62) in a width direction perpendicular to the longitudinal direction and thickness direction of the fastening part (2, 2'); (iii) A fastening part as claimed in any one of claims 1 to 7, wherein each engaging element (30) included in the one or more engaging element rows (21 to 24) includes a base (31) standing on the opposite side to the mounting surface (2a) and at least one protrusion (32) protruding from the base (31) along the longitudinal direction of the fastening part (2, 2'), and a receiving space (33) for receiving an engaging element of an engaging counterpart fastening part is formed between adjacent engaging elements (30) in the engaging element rows (21 to 24).

11. 8. Fastening part according to any one of the preceding claims, wherein the engaging element (30) has a symmetrical waisted shape.

12. The fastening part according to any one of the preceding claims, wherein the engaging element (30) comprises a base (41), a neck (42) and a head (43).

13. The fastening part according to claim 12, wherein the engaging element (30) further comprises shoulder projections (44) provided on both sides of the neck portion (42) and receiving grooves (45) for receiving the shoulder projections (44) of the mating engaging element (30).

14. The fastening part according to claim 11, further comprising a substrate (40), wherein each of the engaging elements (30) in at least the one or more rows of engaging elements (21 to 24) is connected to the substrate (40).

15. The fastening part according to claim 11, further comprising an attachment portion (27) for mounting the fastening part (2, 2'), and each of the engagement elements (30) of the one or more engagement element rows (21 to 24) is connected to the attachment portion (27).

16. 16. The fastening part according to claim 15, wherein the attachment portion (27) includes a reinforcing material (28) or a reinforcing material (28) is fixed to the attachment portion (27).

17. The fastening part according to any one of claims 1 to 7, wherein the fastening part (2, 2') is bendable in accordance with deformation of the edge portion (91) when attached to the edge portion (91).

18. Left and right fastening parts (2, 2'), A slide fastener (1) comprising a slider (8) that can move forward and backward to engage and disengage the left and right fastening parts (2, 2'), The left fastening part (2, 2') is a part long in the front-rear direction that is sewn to the left edge of the opening of the article (9) to which the slide fastener (1) is attached by a sewing thread (96) directly or via an intermediate material, and includes at least one left engaging element row (21-24) in which left engaging elements (30) are arranged along the longitudinal direction of the left fastening part (2, 2'), and the left engaging elements (30) protrude to the right side opposite the left edge of the opening, The right fastening part (2, 2') is a part that is long in the front-to-rear direction and is sewn to the right edge of the opening of the article (9) directly or via an intermediate object with a sewing thread (96), and includes at least one right engaging element row (21-24) in which right engaging elements (30) are arranged along the longitudinal direction of the right fastening part (2, 2'), and the right engaging elements (30) protrude to the left side, opposite the right edge of the opening.

19. a step of attaching fastening parts (2, 2') to a fabric along a side edge (95) at a position spaced inward from the side edge (95) of the fabric, the fastening parts (2, 2') extending longitudinally along the side edge (95) of the fabric, including engaging element rows (21-24) in which engaging elements (30) are arranged along the longitudinal direction of the fastening parts (2, 2'), each engaging element (30) being provided standing on the opposite side to the fabric; The method for manufacturing a fabric with fastening parts includes a step of folding back the fabric to form a folded end to which the fastening parts (2, 2') are attached or to which they are to be attached.

20. The manufacturing method of a fabric with fastening parts according to claim 19, wherein the step of attaching the fastening parts (2, 2') to the fabric includes a step of sewing the fastening parts (2, 2') to the fabric with a sewing thread (96), after which the fabric is folded back and the fastening parts (2, 2') are rotated.