WO2026033601A1 - Pièce de fixation, article et procédé de production d'article - Google Patents

Pièce de fixation, article et procédé de production d'article

Info

Publication number
WO2026033601A1
WO2026033601A1 PCT/JP2024/027938 JP2024027938W WO2026033601A1 WO 2026033601 A1 WO2026033601 A1 WO 2026033601A1 JP 2024027938 W JP2024027938 W JP 2024027938W WO 2026033601 A1 WO2026033601 A1 WO 2026033601A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastening part
support material
portions
element portions
article
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/JP2024/027938
Other languages
English (en)
Japanese (ja)
Inventor
佳之 庄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YKK Corp
Original Assignee
YKK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YKK Corp filed Critical YKK Corp
Priority to PCT/JP2024/027938 priority Critical patent/WO2026033601A1/fr
Publication of WO2026033601A1 publication Critical patent/WO2026033601A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/40—Connection of separate, or one-piece, interlocking members to stringer tapes; Reinforcing such connections, e.g. by stitching

Definitions

  • This disclosure relates to fastening parts, articles, and methods for manufacturing articles.
  • Patent Document 1 discloses that an element member is sewn directly to the fabric of an article such as clothing using sewing thread.
  • One advantage of the technology disclosed in this document is that the fastener tape of a normal fastener stringer is omitted, allowing the element member to be sewn to the fabric within the narrow width of the fastener element, which promotes weight reduction of the article (e.g., clothing) and achieves design effects (e.g., elimination of color differences between the fastener tape and the fabric, improved integration between the fastener element and the fabric, etc.).
  • Patent Document 2 discloses a dual-edge fastener element zipper in which element rows are provided on both side edges of the fastener tape. It is explained that the dual-edge fastener element zipper is well suited to the design of reversible down jackets, which have different colors on the front and back.
  • the inventors of the present application have discovered a new problem: to provide a fastening part that can be sewn directly to an attachment point of an article in a manner that is easier and/or has lower implementation costs.
  • a fastening part is a fastening part that can be sewn directly to an attachment location of an article, and includes: a first element row including at least a plurality of first element portions; a second element row including at least a plurality of second element portions; and a support material that is elongated in a predetermined direction and has a width defined by first and second side edges and a thickness defined by first and second surfaces, with each of the plurality of first element portions fixed to the first side edge and each of the plurality of second element portions fixed to the second side edge.
  • Each of the plurality of first element portions includes at least a first base portion fixed to the first side edge and a first engagement portion that is positioned farther from the first surface than the first base portion in the thickness direction of the support material.
  • Each of the plurality of second element portions includes at least a second base portion fixed to the second side edge.
  • At least one thread passage extending in the predetermined direction and including a plurality of first grooves is formed between the first and second element rows.
  • Each of the plurality of first grooves has a first groove width defined between the first and second element portions and is recessed toward the first surface of the support material.
  • the second element portions can be either engagement element portions or design element portions.
  • the design element portions and engaging element portions may be arranged regularly or randomly.
  • the design element portions and engaging element portions may be arranged regularly or randomly.
  • a method for manufacturing an article having fastening parts sewn to it includes overlapping the fastening part and the attachment point of the article on a sewing machine with the first surface facing away from the attachment point; and sewing the fastening part and the attachment point of the article together on the sewing machine with one or more sewing threads. At least one sewing thread of the one or more sewing threads is sequentially introduced into the multiple first grooves.
  • the fastening part may be as described above. This specification also discloses an article having fastening parts sewn to it.
  • FIG. 1 is a surface view of an article (particularly an opening thereof) according to one embodiment of the present disclosure, in which left and right fastening parts are sewn to the opposing folded edges of the left and right fabrics with sewing thread (not shown).
  • 1 is a cross-sectional schematic diagram of an article according to one embodiment of the present disclosure, with the slider shown by dotted lines for reference.
  • 1 is a schematic partial perspective view of a fastening part showing a thread passage including a number of first grooves; This is a schematic surface view of a fastening part, and schematically shows the engagement portion of the left-end fastener element in the same figure (the neck portion is shown by a dotted line).
  • FIG. 1 is a schematic partial perspective view of a fastening part showing a receiving passage including a number of second grooves; 1 is a schematic side view of a fastening part, illustrating a stitch of a sewing thread introduced into a thread passage. 1 is a schematic cross-sectional view of a fastening part showing a support material sewn to the folded edge of the fabric by a sewing thread. 1 is a schematic perspective view of a fastening device in which left and right fastening parts are joined together.
  • FIG. FIG. 10 is a schematic side view of a fastening part according to a second embodiment, in which first and second element portions on both the front and back sides are arranged in a zigzag pattern along the longitudinal direction of the fastening part.
  • FIG. 10 is a schematic cross-sectional view of a fastening part according to a third embodiment, showing a configuration in which a middle portion of a support material is sandwiched between first and second bottom plates.
  • FIG. FIG. 10 is a schematic side view of a fastening part according to a third embodiment.
  • 12 is a schematic cross-sectional view taken along the dashed line X12-X12 in FIG. 11.
  • 10A to 10C are schematic diagrams showing variations regarding the bottom plate.
  • 10A and 10B are schematic diagrams showing variations in thickness of the bottom plate.
  • 10A to 10C are schematic diagrams showing variations in fixing of an element portion to a support material.
  • FIG. 10A to 10C are schematic diagrams illustrating another sewing process.
  • 1 is a schematic diagram showing a configuration of a fastening part having a first row consisting of an array of engaging elements and a second row consisting of an array of design elements.
  • the fastening device has a longitudinal direction D1, a width direction D2, and a thickness direction D3 (see FIGS. 1 and 2).
  • the front-to-rear direction generally corresponds to the longitudinal direction of the fastening device (the direction of movement of the slider, described below)
  • the left-to-right direction corresponds to the width direction of the fastening device
  • the front-to-back direction corresponds to the thickness direction of the fastening device.
  • the fastening device has a single centerline CFD .
  • the direction toward the centerline CFD in the width direction D2 is sometimes referred to as the inner width direction, and the direction away from the centerline CFD in the width direction D2 is sometimes referred to as the outer width direction.
  • the fastening parts have a longitudinal direction D1', a width direction D2', and a thickness direction D3' (see FIG. 3), which correspond to the longitudinal direction D1, width direction D2, and thickness direction D3 of the fastening device, respectively.
  • the terms indicating directions may be redefined based on the following explanation.
  • the item 9 is, for example, clothing, a bag, a backpack, or shoes, and has left and right fabric portions 91, 92, a fastening device 7 that opens and closes the opposing portions of the fabric portions 91, 92, and a slider 8 that opens and closes the fastening device 7.
  • the fabric portions 91, 92 are made of flexible materials such as woven fabric, knitted fabric, or leather.
  • the fastening device 7 has flexibility that allows it to follow the bending of the fabric portions 91, 92, and therefore ensures high flexibility of the item 9 despite its attachment.
  • the fastening device 7 consists of left and right fastening parts 1, 1' that can be partially or completely separated, and when the slider 8 advances, an opening is formed between the fabric portions 91, 92, or the two are completely separated.
  • the fabric portions 91, 92 are, for example, but are not limited to, the left and right front bodice of a garment.
  • the fabric portions 91, 92 include front portions 91a, 92a and back portions 91b, 92b, with attachment points 91c, 92c formed between them.
  • the attachment points 91c, 92c are portions of the article 9 to which the fastening parts 1, 1' are attached, and in the illustrated example, are the folded edges of the fabric.
  • the fastening device 7 is attached to the fabric portions 91, 92 within the narrow range of the fastening parts 1, 1', achieving the same effects (weight reduction, design effects, etc.) as those in Patent Document 1.
  • the slider 8 has a front wing plate 81, a rear wing plate 82, and a connecting post (not shown) that connects the front wing plate 81 and the rear wing plate 82 at their front ends (see Figure 2).
  • Left and right front openings are provided on both the left and right sides of the connecting post.
  • a single rear opening is provided behind the connecting post.
  • Fastening parts 1, 1' can be sewn directly to attachment points 91c, 92c of article 9.
  • Fastening parts 1, 1' are structurally identical parts, and therefore, the following description will focus primarily on fastening part 1.
  • Fastening part 1 has a first element row L1 in which a plurality of first element portions 11 are arranged, a second element row L2 in which a plurality of second element portions 12 are arranged, and a support material 13 extending longitudinally in the longitudinal direction D1' of fastening part 1 (hereinafter simply referred to as the predetermined direction D1').
  • Each of the plurality of first element portions 11 is fixed to a first side edge 21, and each of the plurality of second element portions 12 is fixed to a second side edge 22.
  • the first side edge, first element portion, and first element row can be referred to as the front side edge, front side element portion, and first element row, respectively, and the second side edge, second element portion, and second element row can be referred to as the back side edge, back side element portion, and back side element row, respectively.
  • the support material 13 is an elongated member extending in a predetermined direction D1' and having a width W13 (or its maximum width) defined by the first and second side edges 21, 22 and a thickness TH13 defined by the first and second faces 13m, 13n.
  • the first and second side edges 21, 22 typically extend parallel to the predetermined direction D1' and are disposed on both the front and back sides of the fastening part 1 in the thickness direction D3'.
  • the first and second faces 13m, 13n face opposite sides of the fastening part 1 in the width direction D2'.
  • the width direction of the support material 13 coincides with the thickness direction D3' of the fastening part 1.
  • the thickness direction of the support material 13 coincides with the width direction D2' of the fastening part 1. This contrasts with a typical fastener stringer, in which the width direction of the fastener tape coincides with the width direction of the fastener stringer, and the thickness direction of the fastener tape coincides with the thickness direction of the fastener string
  • the support material 13 extends longitudinally in a predetermined direction D1' with a predetermined width W13; in short, it is a strip of material whose width is small relative to its length.
  • the length/width ratio can be 5 or more, 10 or more, 15 or more, or 20 or more.
  • the support material 13 can be a highly flexible material such as a woven fabric, a knitted fabric, or a mixed woven and knitted fabric.
  • the first and second element portions 11, 12 are displaceable relative to each other, allowing the fastening part 1 to achieve greater flexibility.
  • the support material 13 can be made harder; for example, a laminate of fabric and resin film can be used.
  • a resin material or metal material with greater, less, or almost no flexibility can also be used as the support material 13.
  • the first surface 13m faces away from the attachment point 91c when the fastening part 1 is sewn to the attachment point 91c.
  • the second surface 13n faces towards the attachment point 91c when the fastening part 1 is sewn to the attachment point 91c, or is in direct contact with the attachment point 91c.
  • the first surface of the fastening part 1 and the first surface of the fastening part 1' face each other at a certain distance when the fastening device 7 is closed, and face each other across the opening of the article when the fastening device 7 is open.
  • the first and second surfaces 13m, 13n may be exposed surfaces that are exposed to the outside along the entire length of the fastening part 1. After the fastening part 1 is sewn to the attachment point 91c, the first surface 13m is partially covered by the stitches ST of the sewing thread, and the second surface 13n is partially or entirely covered by the attachment point 91c of the fabric part 91.
  • the first surface 13m is the opening side formed between the left and right fastening parts 1, 1', and is visible even after the fastening part 1 is sewn to the attachment point 91c. On the other hand, it is more difficult to see the second surface 13n, or it is virtually impossible to see it unless the fabric part 91 is deformed, cut, etc.
  • the support material 13 preferably has a first core portion 13a, a second core portion 13b, and an intermediate portion 13c formed between the first and second core portions 13a, 13b.
  • the first and second core portions 13a, 13b form first and second side edges 21, 22, respectively.
  • the first and second core portions 13a, 13b form both side edges of the support material 13 in the width direction, thereby strengthening the adhesion of the first and second element portions 11, 12 thereto.
  • the intermediate portion 13c has a width less than twice the sum of the widths of the first core portion 13a and the second core portion 13b, and/or (ii) the intermediate portion 13c is a sheet-like portion having a constant thickness throughout its entire area in the specified direction D1'.
  • the flexibility of the support material 13 is effectively reduced, suppressing relative displacement between the first and second element portions 11, 12.
  • the resistance to the insertion of a sewing needle can be made uniform.
  • the distance between the first and second surfaces 13m, 13n is greatest at the core and smallest at the middle.
  • the middle portion 13c can have a third core disposed between the first and second cores. By threading the needle thread through the third core, the sewing strength can be increased.
  • the core portions are composed of a hollow weave that is part of the weave of the support material, and one or more strings (e.g., braided strings) introduced into this hollow weave.
  • the braided strings are bulky, which gives the core portions bulk.
  • resin wire, metal wire, or a combination of these can also be used. Resin and metal wire are relatively less flexible than braided strings, but may improve the bonding strength of the first and second element portions.
  • the first and second element portions 11, 12 may be resin portions fixed to the support material 13 by injection molding in the same process or separate processes.
  • the first and second element portions 11, 12 may have the same color and/or be made of the same resin material.
  • the mechanical or appearance characteristics of the fastening part 1 are made uniform in its thickness direction.
  • the first element portions 11 are not continuous in the specified direction D1', and each first element portion 11 is provided independently as an island portion. The same applies to the second element portions 12.
  • the first element portions 11 are arranged at a first pitch in the specified direction D1', and the second element portions 12 are arranged at a second pitch in the same direction.
  • the first pitch is equal to the second pitch, which promotes the flexibility of the fastening part 1 and makes it easier to meander along the front-to-rear direction, for example.
  • Configurations in which the first pitch and the second pitch are different are also envisioned.
  • the first and second element portions 11, 12 each hold the first and second core portions 13a, 13b at a position and location away from the center of the thickness of the fastening part 1 in the thickness direction, and have, for example, cavities 15a, 15b that receive the core portions 13a, 13b.
  • the cavities 15a, 15b are located farther from the center of the thickness of the fastening part 1 in the thickness direction than the opposing side wall surfaces 31m, 31n described below.
  • the cavity 15a opens at the connection point between the first core portion 13a and the intermediate portion 13c.
  • the cavity 15b opens at the connection point between the second core portion 13b and the intermediate portion 13c.
  • the cavities 15a, 15b refer to hollows in the resin portions of the first and second element portions 11, 12. In fact, cavities 15a and 15b are filled or occupied by first and second cores 13a and 13b, respectively.
  • the first element row L1 and the second element row L2 may be arranged in mirror symmetry. Additionally or alternatively, the multiple first element portions 11 and the multiple second element portions 12 may be arranged in mirror symmetry. Mirror symmetry may contribute to uniform engagement forces on both the front and back sides, or may contribute to simplifying or reducing the cost of the injection molding die. The explanation regarding the first element portion 11 applies equally to the second element portion 12.
  • Each first element portion 11 has a first base portion 11a fixed to the first side edge 21, a first engagement portion 11b positioned farther from the first surface 13m in the thickness direction of the support material 13 than the first base portion 11a, and optionally a first auxiliary engagement portion 11c positioned farther from the first surface 13m in the thickness direction of the support material 13 than the first base portion 11a (see Figure 3).
  • the first auxiliary engagement portion 11c is arranged on the front side of the first engagement portion 11b.
  • the second element portion 12 has a second base portion 12a fixed to the second side edge 22, and a second engagement portion 12b positioned farther from the first surface 13m in the thickness direction of the support material 13 than the second base portion 12a, and optionally a second auxiliary engagement portion 12c positioned farther from the first surface 13m in the thickness direction of the support material 13 than the second base portion 12a.
  • the second auxiliary engagement portion 12c is located on the back side of the second engagement portion 12b.
  • the first base portion 11a is fixed to the first core portion 13a and completely encompasses a portion of the first core portion 13a in the longitudinal direction of the first core portion 13a. This increases the strength of the fixation of the first element portion 11 to the first core portion 13a.
  • the entire first core portion 13a is located on the front side of the side wall surfaces 31m and 32m (described below) (see Figure 7).
  • the first engagement portion 11b is shaped so that it can engage with the corresponding first engagement portion of the fastening part 1'.
  • the first auxiliary engagement portion 11c is located on the front side of the first engagement portion 11b, thereby enhancing the design when viewed from the front side by the user.
  • the first auxiliary engagement portion 11c is a type of engagement portion involved in the engagement between the fastening parts 1, 1', and is shaped to have a higher design quality and a lower engagement force than the first engagement portion 11b.
  • the first engagement portion 11b includes a neck portion 25 connected to the first base portion 11a and a head portion 26 connected to the first base portion 11a via the neck portion 25.
  • the first auxiliary engagement portion 11c connects to the neck portion 25 and the head portion 26 from the front side, thereby increasing the strength of the first element portion 11.
  • the first auxiliary engagement portion 11c covers the gaps (recessed toward the element center line CEL ) on both the front and rear sides of the neck portion 25, thereby increasing the engagement force between the fastening parts 1, 1′ in the front-to-back direction and suppressing the intrusion of foreign matter (e.g., into the thread path described below).
  • the head portion 26 includes a front-side protrusion 26m that protrudes forward from the first auxiliary engagement portion 11c (e.g., its inclined surface 6f) and a rear-side protrusion 26n that protrudes rearward from the first auxiliary engagement portion 11c (e.g., its inclined surface 6g), and these protrude to opposite sides in the predetermined direction D1′.
  • the front protrusion 26m has a surface 6h
  • the rear protrusion 26n has a surface 6i
  • the surfaces 6h and 6i form part of the outline of the elliptical head 26.
  • the width (in the front-to-rear direction) of the first engagement portion 11b gradually decreases and then gradually increases, thereby forming the contour of the neck portion 25.
  • the width (in the front-to-rear direction) of the first engagement portion 11b gradually increases and then gradually decreases, thereby forming the contour of the head portion 26.
  • the shape of the first engagement portion 11b is not limited to this, and it can also have an inverted V shape with the center portion protruding forward.
  • the first base portion 11a has a surface 6a that intersects or is perpendicular to the thickness direction D3' of the fastening part 1, and three side surfaces 6b, 6c, and 6d connected to the surface 6a (see Figure 4).
  • the side surfaces 6b and 6d intersect or are perpendicular to the predetermined direction D1', and the side surface 6c intersects or is perpendicular to the width direction D2' of the fastening part 1.
  • the first auxiliary engagement portion 11c has a surface 6e that intersects or is perpendicular to the thickness direction D3' of the fastening part 1, and a pair of inclined surfaces 6f and 6g that approach each other as they move away from the side surfaces 6b and 6d in the direction away from the first base portion 11a in the width direction D2' of the fastening part 1.
  • the surface 6e may be an inclined surface that slopes backward as it moves away from the surface 6a, thereby gradually reducing the thickness of the first auxiliary engagement portion 11c.
  • first base portion 11a, first engagement portion 11b, and first auxiliary engagement portion 11c also apply to the second base portion 12a, second engagement portion 12b, and second auxiliary engagement portion 12c, and are to be read with the front and back directions reversed.
  • the first base portion 11a and the second base portion 12a have surfaces 61a, 62a facing opposite directions in the front and back directions, which determine the maximum thickness of the fastening part 1. Due to the inclined front and back surfaces of the first and second auxiliary engagement portions 11c, 12c described above, the maximum thickness of the fastening part 1 gradually decreases as it moves away from the plane PL3 (see Figure 4) on which the support material 13 is located.
  • first and second element portions 11, 12 are not limited to those described above, i.e., the combination of an engaging portion and an auxiliary engaging portion.
  • first auxiliary engaging portion 11c can be omitted from the first element portion 11 to reduce its thickness, and as an option, the first engaging portion 11b (neck portion 25 and head portion 26 described below) can be made thicker by an amount equivalent to the thickness of the omitted first auxiliary engaging portion 11c. This increases the engaging force of the first engaging portion 11b.
  • first engaging portion 11b can be omitted from the first element portion 11 to reduce its thickness, and as an option, the first auxiliary engaging portion 11c can be made thicker by an amount equivalent to the thickness of the omitted first engaging portion 11b.
  • the engagement portion may be bent at one or more points, such as a V-shape or an inverted V-shape, in addition to the neck-to-head connection.
  • the auxiliary engagement portion may also be other shapes, such as a rectangle or an isosceles triangle, when viewed from the front or back. Different appearances can be achieved on the front and back by making the first and second engagement portions differently shaped. Additionally or alternatively, different appearances can be achieved on the front and back by making the first and second auxiliary engagement portions differently shaped.
  • At least one thread passage P1 is formed between the first and second element rows L1, L2, extending along a predetermined direction D1' and including a plurality of first grooves 31 (see Figures 6 and 7).
  • Each of the plurality of first grooves 31 has a first groove width W31 defined between the first and second element portions 11, 12, and is recessed toward the first surface 13m of the support material 13.
  • a fastening part 1 can be provided that can be sewn directly to an attachment point of an article in a manner that is easier and/or less expensive to implement.
  • a general sewing machine or a sewing machine with only minor modifications, which promotes the widespread use of the fastening part 1.
  • the cost of the fastening part 1 can be reduced by reducing the amount of sewing thread used.
  • the use of a sewing machine is not essential, and hand sewing using a single sewing thread is also envisioned.
  • the thread path P1 extends continuously along the predetermined direction D1'.
  • the thread path P1 extends parallel to the predetermined direction D1', but is not limited to this. It may extend in a zigzag pattern along the predetermined direction D1'. In this case, it may include an alternating arrangement of inclined grooves that incline toward the front as they extend forward and inclined grooves that incline toward the back as they incline toward the front. Even in this case, the benefits of linear sewing are obtained, albeit to a reduced extent.
  • the multiple first grooves 31 are arranged on the same line parallel to the predetermined direction D1' at the center of the width of the support material 13.
  • a space SP1 is formed between adjacent first element portions 11 in the longitudinal direction of the fastening part 1, and a space SP2 is formed between adjacent second element portions 12. Therefore, adjacent first grooves 31 in the same direction are also spatially connected via the space between them.
  • the first groove 31 has side wall surfaces 31m, 31n and a bottom surface 31j extending between the side wall surfaces 31m, 31n.
  • the first groove 31 is a deep groove in which the first groove depth D31 is greater than the first groove width W31.
  • the aspect ratio D31/W31 is 1.5 or greater, and more preferably, 2 or greater.
  • the side wall surfaces 31m, 31n of the first groove 31 match the opposing surfaces of the first and second element portions 11, 12, and typically include the opposing surfaces of the first and second engagement portions 11b, 12b, and may optionally partially include the opposing surfaces of the first and second base portions 11a, 12a.
  • the bottom surface 31j of the first groove 31 matches the first surface 13m of the support material 13 (e.g., the intermediate portion 13c).
  • the first surface 13m of the support material 13 e.g., the intermediate portion 13c
  • the first surface 13m of the support material 13 is exposed at the bottom of the first groove 31, which facilitates simplified sewing operations.
  • the fastening part 1 may further include at least one receiving channel P2 extending along a predetermined direction D1' between the first and second element rows L1, L2 to at least partially receive the attachment point 91c of the article 9 (see Figures 5 and 7).
  • the receiving channel P2 includes a plurality of second grooves 32, each of which defines a second groove width W32 between the first and second element portions 11, 12 and is recessed toward the second surface 13n of the support material 13.
  • the receiving channel P2 being formed, constructed, or configured from a plurality of second grooves 32 allows the attachment point 91c to be inserted between the first and second element rows L1, L2, promoting more stable attachment of the fastening part 1 to the attachment point 91c.
  • Arranging the first and second element rows L1, L2 on both the front and back sides of the attachment point 91c may also improve watertightness.
  • the maximum depth of the receiving channel P2 is less than half the maximum depth of the thread passage P1. That is, as is clear from the above explanation, it is desirable for the thread passage P1 to be formed deeper than the receiving passage P2.
  • the receiving path P2 extends continuously along the predetermined direction D1'.
  • the receiving path P2 extends parallel to the predetermined direction D1', but is not limited to this. It may also extend in a zigzag pattern along the predetermined direction D1', similar to the thread path P1. However, in the latter case, there is a risk that wrinkles may easily occur in the fabric portions 91, 92.
  • the multiple second grooves 32 are arranged in the same straight line parallel to the longitudinal direction of the fastening part 1 at the center of the width of the support material 13.
  • the second groove 32 has side wall surfaces 32m, 32n and a bottom surface 32j extending between the side wall surfaces 32m, 32n.
  • the second groove 32 is a shallower groove than the first groove 31 (located on the opposite side of the fastening part 1 from the second groove 32 in the width direction), thereby preventing the attachment point 91c from excessively penetrating the second groove 32 of the fastening part 1.
  • the aspect ratio of the second groove 32 is smaller than that of the first groove 31, for example, less than 2/3 or less than 1/2 of that.
  • the side wall surfaces 32m, 32n of the second groove 32 match the opposing surfaces of the first and second element portions 11, 12, and may typically include the opposing surfaces of the first and second base portions 11a, 12a.
  • the bottom surface 31j of the first groove 31 matches the second surface 13n of the support material 13 (e.g., the intermediate portion 13c).
  • the first surface 13m of the support material 13 e.g., the intermediate portion 13c
  • the depth direction of the first groove 31 and the depth direction of the second groove 32 are opposite.
  • the depth direction of the first groove 31 matches the direction of progression (in the first groove 31) toward the first surface 13m of the support material 13 in the width direction of the fastening part 1.
  • the depth direction of the second groove 32 matches the direction of progression (in the second groove 32) toward the second surface 13n of the support material 13 in the width direction of the fastening part 1.
  • the engagement state of fastening parts 1, 1' will be further explained.
  • the first auxiliary engagement portion 11c of fastening part 1 and the first auxiliary engagement portion 11c' of fastening part 1' are alternately engaged.
  • the auxiliary engagement portion of the element portion of one fastening part is stacked on top of the head of the element portion of the other fastening part, which prevents the two from being disengaged by force applied in the front-to-back direction.
  • the first and second element portions 11, 12 may be arranged in a zigzag pattern along the predetermined direction D1'.
  • the fastening device 7 has increased resistance to forces applied in the front-to-back direction.
  • both the first surface 13m and the second surface 13n of the support material 13 are exposed and not covered in any way.
  • the exposed surface of the first surface 13m and the exposed surface of the second surface 13n overlap over their entire areas when viewed in the thickness direction of the support material 13.
  • the sewing machine needle only needs to penetrate the support material 13 of the fastening part 1, which has the advantage of making the sewing operation relatively easy.
  • the first surface 13m and the second surface 13n of the support material 13 are each regularly exposed along the predetermined direction D1'.
  • the exposed surface of the first surface 13m and the exposed surface of the second surface 13n may at least partially overlap when viewed in the thickness direction of the support material 13. In this case, the mechanical strength of the first and/or second element parts 11, 12 is increased, or the bonding strength of the first and/or second element parts 11, 12 to the support material 13 is increased.
  • the fastening part 1 can further have a plurality of first bottom plates 51.
  • Each of the plurality of first bottom plates 51 connects the first and second element parts 12 to each other in the width direction of the support material 13, and forms at least a portion of the bottom surface of the first groove 31.
  • the first and second element parts 12 are connected to each other by the first bottom plates 51, which increases their mechanical strength and/or their adhesive strength to the support material 13.
  • the fastening part 1 can further include a plurality of second bottom plates 52.
  • Each of the plurality of second bottom plates 52 connects the first and second element parts 11, 12 to each other in the width direction of the support material 13, and forms at least a portion of the bottom surface of the second groove 32.
  • the first and second element parts 12 are connected to each other by the second bottom plate 52, increasing their mechanical strength and/or their adhesive strength to the support material 13. Furthermore, it becomes less likely that one of the first element part 11 and the second element part 12 will be displaced relative to the other, strengthening the engagement between the fastening parts 1, 1'.
  • First needle holes 61 are formed between adjacent first bottom plates 51 in the specified direction D1', through which a portion of the first surface 13m of the support material 13 (particularly the middle portion 13c) is exposed and visible from the outside.
  • the first needle holes 61 open regularly in the specified direction D1', and a sewing needle of a sewing machine pierces the support material 13 through these holes. It is desirable that the first needle holes 61 are not spatially connected in the specified direction D1', and in the illustrated example, the first bottom plates 51 prevent spatial connection between adjacent first needle holes 61.
  • the first bottom plate 51 In order to increase the opening area of the first pinhole 61, it is further desirable that the first bottom plate 51 have a constricted shape as shown in FIG. 11. It is not essential that all first bottom plates 51 have a constricted shape, but it is desirable that two or more first bottom plates 51 have a constricted shape. Furthermore, the first pinhole 61 may be spatially connected to the gap between adjacent first element portions 11 in the longitudinal direction of the fastening part 1, and/or may be spatially connected to the gap between adjacent second element portions 12 in the longitudinal direction of the fastening part 1.
  • Second needle holes 62 are formed between adjacent second bottom plates 52 in the specified direction D1', through which portions of the second surface 13n are exposed and visible from the outside.
  • the second needle holes 62 open regularly in the specified direction D1', allowing the sewing needle of a sewing machine to pierce the support material 13. It is desirable that the second needle holes 62 are not spatially connected in the specified direction D1'. In the illustrated example, the second bottom plates 52 prevent spatial communication between adjacent second needle holes 62.
  • the second bottom plates 52 have a constricted shape similar to that of the first bottom plate 51. While it is not necessary for all second bottom plates 52 to have a constricted shape, it is desirable that two or more second bottom plates 52 have a constricted shape.
  • the first and second bottom plates 51, 52 can be formed on opposite sides of the support material 13.
  • the first and second pinholes 61, 62 can be formed on opposite sides of the support material 13.
  • the thickness or maximum thickness of the first bottom plate 51 measured from the first surface 13m is 2/3 or less, 1/2 or less, or 1/3 or less of the maximum height of the first element portion 11 measured from the first surface 13m, and/or 2/3 or less, 1/2 or less, or 1/3 or less of the maximum height of the second element portion 12 measured from the first surface 13m. This ensures a sufficient depth of the first groove 31.
  • the thickness or maximum thickness of the second bottom plate 52 is equal to or greater than the thickness or maximum thickness of the first bottom plate 51, which increases the mechanical strength of the first and second element portions 12 and/or increases their bonding strength to the support material 13. Other configurations are also possible.
  • the first bottom plate 51 can be formed thin enough to allow a sewing needle to pass through the position and/or area corresponding to the first needle hole 61 (for example, a thickness of 2 mm or less).
  • a sewing needle were to pass through the first bottom plate 51, which is a resin part, there is a risk of burrs and residue being generated, so it is advantageous to form the first needle hole 61 as empty space where no tangible object exists.
  • the second bottom plate 52 applies to the second bottom plate 52.
  • the first bottom plate 51 does not connect a first element portion 11 and a second element portion 12 that face each other in the thickness direction of the fastening part 1 (as described above), but can be formed obliquely (for example, rectangular or parallelogram-shaped) so as to connect a certain first element portion 11 to another second element portion 12 adjacent to the opposing second element portion 12.
  • the first pinhole 61 can also be formed obliquely. Other configurations are also possible.
  • the first bottom plate 51 can be formed to connect one second element portion 12 and two first element portions 11 (i.e., a pair of first element portions 11) facing each other in the thickness direction of the fastening part 1.
  • the first element portions 11 are formed at twice the pitch compared to those described above, and therefore the total number of first element portions 11 is twice the total number of second element portions 12.
  • the element dimensions are roughly halved.
  • the first bottom plate 51 can be formed in a V-shape or U-shape, via which two first element portions 11 can be connected to one second element portion 12. Other configurations are also possible.
  • Figure 14(a) shows an example in which the second bottom plate 52 is formed thicker than the first bottom plate 51.
  • the receiving path P2 is buried in the second bottom plate 52 and essentially disappears.
  • the second bottom plates 51, 52 can alternatively be named a connecting portion (connecting the first and second element portions 11, 12).
  • Figure 14(b) shows an example in which the first bottom plate 51 is formed thicker than that of Figure 14(a).
  • the depth of the first groove 31 decreases as the thickness of the first bottom plate 51 increases.
  • the thickness or maximum thickness of the first bottom plate 51 measured from the first surface 13m is less than 2/3 of the maximum height of the first element portion 11 measured from the first surface 13m.
  • Figure 15(a) shows an example in which through holes H1 and H2 are regularly formed in a support material 13 in place of the first and second core portions, and the first and second element portions 11 and 12 are attached to these via injection molding. Multiple through holes can also be assigned to one element portion, which prevents the element portion from rotating. Naturally, the through holes H1 and H2 are filled and closed by the resin portions of the first and second element portions 11 and 12, respectively.
  • Figure 15(b) shows an example in which first and second bottom plates 51, 52 have been formed in the example of Figure 15(a).
  • Figure 15(c) shows an example in which an intermediate through-hole H3 has been formed in the support material 13 to connect the first bottom plate 51 and the second bottom plate 52 in the example of Figure 15(b).
  • the fastening part 1 and the fabric portion 91 may be sewn together with the attachment point 91c, which will become the folded end, introduced into the receiving path P2.
  • the sewing thread may include an upper thread and a lower thread, which may be intertwined inside the folded edge of the fabric portion 91 between the front portion 91a and the back portion 91b.
  • a typical sewing machine having a linear feed mechanism, an upper needle, a looper, etc. may be used.
  • the sewing machine may include a transport guide mechanism for the fastening part 1 and the fabric portion 91.
  • the feed mechanism feeds the polymer of the fastening part 1 and the fabric portion 91 linearly onto the needle plate. On the needle plate, the upper needle penetrates the support material 13 and then the fabric portion 91.
  • both the first and second element portions have engaging portions.
  • the element portions do not necessarily have to be engaging element portions and may be design element portions. That is, the engaging portions can be omitted in various ways, as follows: In one case, the engaging portion of the first element portion is replaced with a design portion, and the first element portion as an engaging element portion becomes the design element portion. In another case, the engaging portion of the second element portion is replaced with a design portion, and the second element portion as an engaging element portion becomes the design element portion.
  • the design portion referred to here means a portion that contributes substantially nothing or almost nothing to increasing the engagement strength of the fastening parts 1, 1' against lateral pulling (in the left-right direction) and/or upward thrust (in the front-to-back direction), as shown as design portion 12d in Figure 18.
  • design portion 12d two types of design portion 12d with different shapes are shown in Figure 18, but the number of types of design portions in the same row is arbitrary, as long as it is one or more. Configurations in which the engaging element portions and design element portions are arranged in the same row regularly (for example, alternating one by one, alternating multiple by multiple) or randomly are also envisioned.
  • a further modification is to omit one of the first and second element rows.
  • the fastening part 1 shown in FIG. 18 is as follows. Appendix 1.
  • the support member (13) is elongated in a predetermined direction and has a width (W13) defined by first and second side edges (21, 22) and a thickness (TH13) defined by first and second faces (13m, 13n), and each of the plurality of engaging element portions (11) is fixed to the first side edge (21), and each of the plurality of design element portions (12) is fixed to the second side edge (22),
  • Each of the plurality of engaging element portions (11) has at least a first base portion (11a) fixed to the first side edge (21) and an engaging portion (11b) positioned farther from the first surface (13m) than the first base portion (

Landscapes

  • Connection Of Plates (AREA)

Abstract

Dans la partie de fixation (1) selon la présente divulgation, au moins un passage de fil (P1) s'étendant le long d'une direction prédéterminée et comprenant une pluralité de premières rainures (31) est formé entre des première et seconde rangées d'éléments (L1, L2). Chacune de la pluralité de premières rainures (31) a une première largeur de rainure (W31) définie entre des première et seconde parties d'élément (11, 12), et est en retrait vers une première surface (13m) d'un matériau de support (13).
PCT/JP2024/027938 2024-08-05 2024-08-05 Pièce de fixation, article et procédé de production d'article Pending WO2026033601A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2024/027938 WO2026033601A1 (fr) 2024-08-05 2024-08-05 Pièce de fixation, article et procédé de production d'article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2024/027938 WO2026033601A1 (fr) 2024-08-05 2024-08-05 Pièce de fixation, article et procédé de production d'article

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WO2026033601A1 true WO2026033601A1 (fr) 2026-02-12

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101191432B1 (ko) * 2011-12-21 2012-10-16 영 철 강 방수 및 방풍 효과를 갖는 슬라이드 파스너
CN205006103U (zh) * 2015-09-02 2016-02-03 福建浔兴拉链科技股份有限公司 塑钢双边链牙拉链
WO2018142548A1 (fr) * 2017-02-02 2018-08-09 Ykk株式会社 Article doté d'une fermeture à glissière
CN209528069U (zh) * 2018-08-02 2019-10-25 广东欧亚宝拉链服装配件有限公司 一种混合牙型压字拉链
CN212574362U (zh) * 2020-06-28 2021-02-23 浙江伟星实业发展股份有限公司 一种拉链

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101191432B1 (ko) * 2011-12-21 2012-10-16 영 철 강 방수 및 방풍 효과를 갖는 슬라이드 파스너
CN205006103U (zh) * 2015-09-02 2016-02-03 福建浔兴拉链科技股份有限公司 塑钢双边链牙拉链
WO2018142548A1 (fr) * 2017-02-02 2018-08-09 Ykk株式会社 Article doté d'une fermeture à glissière
CN209528069U (zh) * 2018-08-02 2019-10-25 广东欧亚宝拉链服装配件有限公司 一种混合牙型压字拉链
CN212574362U (zh) * 2020-06-28 2021-02-23 浙江伟星实业发展股份有限公司 一种拉链

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