WO2023188402A1 - Fermeture à glissière - Google Patents

Fermeture à glissière Download PDF

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Publication number
WO2023188402A1
WO2023188402A1 PCT/JP2022/016916 JP2022016916W WO2023188402A1 WO 2023188402 A1 WO2023188402 A1 WO 2023188402A1 JP 2022016916 W JP2022016916 W JP 2022016916W WO 2023188402 A1 WO2023188402 A1 WO 2023188402A1
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WO
WIPO (PCT)
Prior art keywords
fastener
fastening
slide fastener
tape
fastening part
Prior art date
Application number
PCT/JP2022/016916
Other languages
English (en)
Japanese (ja)
Inventor
宥辰 董
祐介 細川
和夫 田村
Original Assignee
Ykk株式会社
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株式会社 filed Critical Ykk株式会社
Priority to PCT/JP2022/016916 priority Critical patent/WO2023188402A1/fr
Priority to TW111126767A priority patent/TWI840884B/zh
Publication of WO2023188402A1 publication Critical patent/WO2023188402A1/fr

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    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/02—Slide fasteners with a series of separate interlocking members secured to each stringer tape
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/32—Means for making slide fasteners gas or watertight

Definitions

  • the present disclosure relates to a slide fastener.
  • Patent Document 1 describes an inverted V-shaped fastener element (see FIG. 1 of the same document), this variant (see FIG. 10 of the same document), and furthermore, a fastener element in which the upper half of the fastener element is configured as a covering part. (See FIG. 37 of the same document) is disclosed. Note that this covering portion does not function as a fastening portion.
  • Patent Document 3 discloses that fastener elements are overlapped with each other in order to impart water-stopping properties to a slide fastener (see FIG. 4 of the same document).
  • Paragraphs 0071 to 0073 and paragraph 0092 of Patent Document 3 disclose that the tip of the element head comes into contact with the core string portion of the waterproof tape on the other side, thereby increasing water-stopping properties.
  • Patent No. 6891272 China Design Publication No. 305137693S International Publication No. 2014/002234
  • the inventor of the present application has newly discovered the significance of achieving both water-stopping properties and other properties of a slide fastener.
  • a slide fastener includes a left-hand fastener stringer in which a plurality of left-hand fastener elements are attached to a side edge of a left-hand fastener tape, and a plurality of right-hand fastener elements are attached to a side edge of a right-hand fastener tape. It includes a right side fastener stringer and a slider that is movable in a fore-and-aft direction to alternately engage the left and right side fastener elements.
  • Each of the left and right fastener elements includes first and second fastening parts that are stacked in the thickness direction of the fastener element, and the first fastening parts of the left and right fastener elements are engageable with each other, and the left and right fastener elements are capable of engaging with each other.
  • the second fastening portions of the fastener element are engageable with each other, the first and second fastening portions have different shapes, and one of the first and second fastening portions is at least relative to the other in the front-rear direction. Positioned partially offset.
  • Each of the left and right fastener elements further includes a contact surface provided in at least a portion of the differential area corresponding to the difference in shape and position of the first and second fastening parts.
  • a first plane defined by a succession of center points of the width in the front-rear direction in at least a part of the first fastening part and at least one of the second fastening parts When setting a second plane defined by a series of center points of widths in the longitudinal direction in a part, the first plane and the second plane are set so that the interval in the longitudinal direction between the first plane and the second plane changes in the horizontal direction.
  • the second fastening portions are positioned one at least partially offset from the other.
  • each of the first fastening parts of the left and right fastener elements includes a tapered engagement protrusion and a tapered engagement recess in the same direction as the protruding direction of the engagement protrusion. including.
  • the second fastening portion of each of the left and right fastener elements includes a neck and a head connected to the neck. In some cases, the neck is thinner than the head.
  • the second fastening part is shaped symmetrically with respect to a plane orthogonal to the front-rear direction, and/or the second fastening part at least partially covers the engagement recess of the first fastening part. It is provided so as to cover it.
  • the first fastening part is thicker than the second fastening part.
  • the heads of the left-hand fastener elements have flat tapered surfaces that approach each other as they extend outwardly of the left-hand fastener tape to which the left-hand fastener element is attached.
  • the head of the right-hand fastener element has flat tapered surfaces that approach each other as they extend outwardly of the right-hand fastener tape to which the right-hand fastener element is attached.
  • the apex of the engagement protrusion and the bottom of the engagement recess are positioned on the axis that determines the moving direction of the slider.
  • each of the left and right fastener elements includes an additional contact surface included in the differential region described above, such that upon engagement of the left and right fastener elements, the additional contact surface of the left fastener element and the right The side edges of the fastener tape are in contact, and the additional contact surface of the right-hand fastener element is in contact with the side edges of the left-hand fastener tape.
  • one of the first and second fastening parts includes a protrusion that protrudes outward from the tape than the other of the first and second fastening parts, and the protrusion includes a side edge and a protrusion that protrudes outward from the tape.
  • a curved surface adapted for contact is provided.
  • one of the protrusions of the first and second fastening parts is shaped to have a thinner end at a position closer to the tip than the curved surface.
  • a gate mark is formed in the protrusion of one of the first and second fastening parts.
  • each of the left and right fastener elements includes a first base having a bonding surface to which the first fastening portion is bonded, a second base having a bonding surface to which the second fastening portion is bonded;
  • the bonding surfaces of the two bases are positioned further outward from the tape than the bonding surface of the first base, and the side edges are exposed at positions further outward from the tape than the bonding surface of the first base.
  • the first fastening part is provided as one of the upper and lower parts of the fastener element, and the second fastening part is provided as the other of the upper part and the lower part of the fastener element.
  • the first fastening part is adapted to reduce the sliding resistance of the slider, and the second fastening part is adapted to improve the lateral pulling strength of the slide fastener.
  • the first and second fastening portions are configured to provide the slide fastener with first and second lateral pull strengths, respectively.
  • FIG. 1 is an elevational view of a slide fastener according to one aspect of the present disclosure, showing the top surface thereof.
  • FIG. FIG. 3 is a schematic partial bottom view of the slide fastener, showing a state in which left and right fastener elements are alternately engaged.
  • FIG. 3 is a schematic perspective view of a fastener element attached to a side edge of a fastener tape.
  • FIG. 3 is a schematic top view of a fastener element.
  • FIG. 3 is a schematic top view of the fastening element, with the outline of the second fastening part shown in dotted lines to illustrate the first fastening part;
  • FIG. 3 is a schematic bottom view of the fastener element.
  • FIG. 2 is a cross-sectional view of a fastener stringer showing a side view of a fastener element.
  • FIG. 3 is a schematic perspective view showing that the degree of collision between left and right fastener elements is reduced by the low-profile neck. It is a schematic diagram which shows the process by which the 2nd fastening part of the fastener element on either side engages with each other within a slider. It is a schematic diagram which shows the process in which the 1st fastening part of the fastener element on either side engages with each other within a slider.
  • FIG. 2 is a schematic cross-sectional view of the slide fastener taken along the dashed line XX extending in the width direction of the slide fastener in FIG. 1.
  • FIG. 2 is a schematic cross-sectional view of an element row in an engaged state taken along a dashed-dotted line XI-XI parallel to the center line of the slide fastener in FIG. 1.
  • FIG. FIG. 7 is a schematic top view of another example of a fastener element.
  • FIG. 14 is a schematic diagram showing an engaged state of the fastener elements shown in FIG. 13;
  • FIG. 7 is a schematic top view of a further example fastener element. It is a schematic top view of the fastener element of further another example.
  • FIG. 17 is a schematic view showing the engagement between the fastener elements and the engagement between the fastener elements and the fastener tape shown in FIG. 16;
  • FIG. 17 is a schematic diagram showing a process in which the fastener elements shown in FIG. 16 are engaged within a slider.
  • FIGS. 1 to 18 various embodiments and features will be described with reference to FIGS. 1 to 18. Those skilled in the art can combine each embodiment and/or each feature without needing excessive explanation, and can also understand the synergistic effect of this combination. Duplicate explanations between embodiments will be omitted in principle.
  • the reference drawings are primarily for the purpose of describing the invention and are simplified for ease of drawing. Each feature is understood as a universal feature that is not only effective for the slide fastener disclosed in this application, but is also applicable to various other slide fasteners not disclosed in this specification.
  • the front-rear direction corresponds to the moving direction of the slider
  • the left-right direction is perpendicular to the front-rear direction, and parallel to the tape surface of the fastener tape of the slide fastener.
  • the up-down direction is orthogonal to both the front-back direction and the left-right direction. It is assumed that these directions can be redefined differently in light of the description below. For the sake of simple explanation, descriptions such as “left side,” “right side,” “front side,” “rear side,” “upper side,” and “lower side” may be omitted.
  • a slide fastener 1 is a long belt-like member extending in the front-rear direction with a predetermined left-right width as shown in FIG. It has 4.
  • Each fastener stringer 2, 3 has a fastener tape 5, 6 and a plurality of fastener elements 9, 10 attached to the side edges 7, 8 of the fastener tape 5, 6.
  • the slider 4 is movable to engage the left fastener element 9 and the right fastener element 10 alternately.
  • the slide fastener 1 has left and right front stops 11 and 12 and one rear stop 13, but both can be omitted. Note that the rear stop 13 may be configured as an opening tool.
  • the fastener tapes 5 and 6 are long bands that extend in the front-rear direction with a predetermined left-right width.
  • the fastener tapes 5 and 6 have a thickness defined by the pair of upper and lower tape surfaces, and have high flexibility due to their thin thickness.
  • the fastener tapes 5 and 6 include a woven, knitted, or mixed woven and knitted base fabric, and optionally have a waterproof layer (for example, a resin layer) overlaid on the base fabric. If the fastener tapes 5, 6 include a waterproof layer, this prevents the penetration of liquids in the direction through the fastener tapes 5, 6.
  • the fastener elements 9 and 10 are attached at a predetermined pitch to the side edges 7 and 8 of the fastener tapes 5 and 6 (e.g., core cord parts that bulge upward and downward from the tape surface), thereby extending in the front-rear direction.
  • a row of elements is formed.
  • the fastener elements 9, 10 are made of resin, and are typically fixed to the side edges 7, 8 (for example, core string portions) of the fastener tapes 5, 6 by injection molding.
  • the fastener elements 9 and 10 are arranged so as to ensure partial or total water-tightness in the element row 25 (in the engaged state), which is formed by alternately engaging the fastener elements 9 and 10. can be configured.
  • the slider 4 may be made of metal, resin, or ceramics.
  • the slider 4 includes an upper wing plate 41, a lower wing plate 42, and a connecting column 43 that connects the upper wing plate 41 and the lower wing plate 42 at their front ends, as shown in FIGS. , a pair of left and right upper flanges 44 that protrude downward from the left and right side edges of the upper wing plate 41, a pair of left and right lower flanges 45 that protrude upward from the left and right side edges of the lower wing plate 42, and It has a handle attachment part 46 provided and a handle 47 passed through the handle attachment part 46 and provided on the upper wing plate 41.
  • the center line CX of the slide fastener 1 is equal to the axis that determines the moving direction of the slider 4.
  • the slider 4 is provided with a Y-shaped element passage. Specifically, the front end of the slider 4 is provided with front openings on both the left and right sides of the connecting column 43, through which the left and right fastener elements 9 and 10 (not engaged) are passed from the inside of the slider to the outside or outside. to move inside. A rear opening is provided at the rear end of the slider 4, through which the left and right fastener elements 9, 10 (in engagement) move from the inside of the slider to the outside or from the outside to the inside. The left and right fastener elements 9 and 10 are engaged or disengaged at a position between the connecting post 43 and the rear opening.
  • each fastener element 9, 10 has a base 21 fixed to the side edges 7, 8 of the fastener tapes 5, 6, and a fastening part 22 protruding from the base 21 to the outside of the tape.
  • tape outward refers to a direction from a position on the tape surface to a position outside the tape surface across the side edge to which the fastener element is attached, with respect to the fastener tape to which the fastener element is attached. means.
  • the fastening portion 22 of the left fastener element 9 projects to the right, and the fastening portion 22 of the right fastener element 10 projects to the left. Note that FIG. 2 shows the opposite side of FIG. 1, so the left and right sides are reversed.
  • the fastener elements 9 and 10 are configured to have different shapes on both the upper and lower sides, which facilitates the slide fastener 1 to achieve both water-stopping properties and other properties. This point will be explained in more detail with reference to FIGS. 3 to 7. Note that the left and right fastener elements 9 and 10 have mirror-symmetrical structures. Therefore, the two will not be explained separately. That is, the explanation regarding one of the fastener elements 9 and 10 also applies to the other.
  • the base 21 of the fastener element 10 includes a first base 21m and a second base 21n, which are fixed to different tape surfaces of the fastener tape 6, and between which the fastener tape 6 and the side edge
  • the portion 8 (for example, the core string) is pinched.
  • the fastening part 22 of the fastener element 10 includes a first fastening part 22m and a second fastening part 22n.
  • the first and second fastening parts 22m and 22n have different shapes.
  • one of the first and second fastening parts 22m and 22n is positioned at least partially offset from the other in the front-rear direction.
  • the first fastening part 22m projects outward from the first base 21m, and the second fastening part 22n projects outward from the second base 21n.
  • the first fastening part 22m and the second fastening part 22n are provided to be stacked in the vertical direction (thickness direction of the fastener element), and the fastener tape 6 is not disposed between them.
  • the slide fastener 1 has a first horizontal pulling strength depending on the engagement between the first fastening parts 22m, and has a second horizontal pulling strength depending on the engagement between the second fastening parts 22n. That is, the horizontal pulling strength of the slide fastener 1 corresponds to the sum of the first and second horizontal pulling strengths.
  • the first and second lateral pull strengths may be different. Thereby, the lack of horizontal pulling strength due to one fastening part can be compensated for by the horizontal pulling strength due to the other fastening part.
  • the first and second base portions 21m and 21n each have a main surface 31 and an outer circumferential surface 32.
  • the main surface 31 is substantially parallel to the tape surface of the fastener tape 6 and has a generally rectangular shape. Of course, the main surface can also be sloped or have other shapes.
  • the outer circumferential surface 32 of the first base portion 21m includes a joining surface 33m to which the first fastening portion 22m is joined.
  • the outer circumferential surface 32 of the second base portion 21n includes a bonding surface 33n to which the second fastening portion 22n is bonded. Both of the bonding surfaces 33m and 33n are surfaces facing outward from the tape, and the front and back widths are larger than the top and bottom widths.
  • the bonding surface 33n is positioned further outward from the tape than the bonding surface 33m, and the side edge portion 8 is exposed at a position further outward from the tape than the bonding surface 33m. As will become clear from the description below, this allows the fastener elements on one of the left and right sides to come into contact with the side edges of the fastener tapes on the other side, and the water-stopping properties of the slide fastener 1 can be improved.
  • the bonding surface 33n may be located outside the tape surface of the fastener tape 6.
  • the bonding surface 33m may be located on the tape surface (for example, the side edge) of the fastener tape 6.
  • FIG. 4 is a schematic top view of the fastener element 10.
  • FIG. 5 is a schematic top view of the fastener element 10, in which the outline of the second fastening part 22n is shown in dotted lines to illustrate the first fastening part 22m.
  • FIG. 6 is a schematic bottom view of the fastener element 10.
  • the first fastening part 22m is provided at the lower part of the fastening part 22 (as the lower part of the fastener element), and the second fastening part 22n is provided at the upper part of the fastening part 22 (as the upper part of the fastener element).
  • the first fastening portion 22m may have a shape bent at one point, such as an inverted V-shape or a "he" shape. Additionally or alternatively, the first fastening portion 22m may have an engaging convex portion 61 and an engaging recess 62 recessed in the same direction as the protruding direction of the engaging convex portion 61.
  • the engagement protrusion 61 is arranged on the front side and the engagement recess 62 is arranged on the rear side, but the arrangement can also be reversed. Note that the first fastening portion can take various shapes other than those shown.
  • the engaging convex portion 61 has two inclined surfaces 51 and 52 as a front surface, and is defined by these in a tapered shape that projects forward.
  • the engagement recess 62 has two inclined surfaces 54 and 55 as a rear surface, and is defined by these in a tapered shape recessed toward the front.
  • the apex 53 of the engagement protrusion 61 is provided between the two inclined surfaces 51 and 52, and the bottom point 56 of the engagement recess 62 is similarly provided between the two inclined surfaces 54 and 55.
  • Front ramp 51 and rear ramp 54 are oriented substantially or at least partially parallel; similarly, front ramp 52 and rear ramp 55 are substantially or at least partially parallel. can be oriented.
  • a curved surface is formed between the sloped surface 51 and the sloped surface 52 for chamfering, but the extension line of the sloped surface 51 and the extension line of the sloped surface 52 are at an angle of 120° or more (for example, 120° to angles within the range of 140°).
  • the apex 53 may be the apex of the curved surface between the inclined surfaces 51 and 52.
  • the bottom point 56 may be the bottom point of the curved surface between the inclined surfaces 54 and 55.
  • the apex 53 and the bottom point 56 can be positioned on the center line CX of the slide fastener 1 (ie, the axis that determines the moving direction of the slider 4). As a result, the sliding resistance of the slider 4 can be reduced, and smooth and sufficient engagement between the left and right first fastening parts 22m can be promoted.
  • the first fastening portion 22m has a connecting tip surface 57 that extends in the front-rear direction and connects the inclined surface 54 and the inclined surface 51.
  • An acute rear corner portion 58 is formed between the connection tip surface 57 and the inclined surface 54 and is shaped to protrude rearward.
  • a front corner 59 is formed at an obtuse angle between the connecting end surface 57 and the inclined surface 51.
  • the sum of the angle (acute angle) between the connection tip surface 57 and the inclined surface 54 and the angle (obtuse angle) formed between the connection tip surface 57 and the inclined surface 51 may be 180°. Note that chamfering is ignored when determining the angle.
  • the first fastening part 22m includes a first rod part 63 and a second rod part 64 in the order of distance from the first base part 21m (see FIG. 6).
  • the first fastening portion 22m has an inclined surface 52 as the front surface of the first rod portion 63, and an inclined surface 55 as the rear surface. Further, the first fastening portion 22m has an inclined surface 51 as the front surface of the second rod portion 64, and has an inclined surface 54 as the rear surface.
  • the first rod portion 63 and the second rod portion 64 may intersect at an angle of 120° or more (for example, an angle within a range of 120° to 140°).
  • the inclined surfaces 51, 52, 54, and 55 of the first rod portion 63 and the second rod portion 64 intersect at the same predetermined angle with respect to the center line CX of the slide fastener 1 (i.e., the axis that determines the moving direction of the slider 4). It is possible.
  • the first fastening portion 22m may have an additional protrusion or recess relative to the basic shape bent at one point as disclosed in Patent Document 1 (incorporated herein by reference). However, by omitting such additional protrusions and shaping the first fastening part 22m as shown in the illustrated example, the structure of the first fastening part 22m is simplified, and the mold for injection molding is also simplified. Cost reduction can be promoted.
  • the second fastening part 22n has a different shape from the first fastening part 22m.
  • the second fastening portion 22n includes a neck portion 71 and a head portion 72 connected to the neck portion 71.
  • the neck 71 is coupled to the second base 21n and extends outwardly from the tape.
  • the head 72 is coupled to the second base 21n via the neck 71.
  • the neck portion 71 has a substantially rectangular upper surface and is typically shaped like a rectangular parallelepiped.
  • the neck portion 71 can have a portion that is wide in the front-rear direction for connection with the head 72 and/or a portion that is wide in the front-rear direction for connection with the second base portion 21n.
  • the head portion 72 also has a substantially rectangular upper surface, and is typically shaped like a rectangular parallelepiped. In the illustrated example of FIG. 4, the head 72 is chamfered in an arcuate manner at two front and rear corners remote from the neck 71.
  • the neck 71 and head 72 can be changed to other shapes.
  • the second fastening portion 22n has a symmetrical shape with respect to a plane orthogonal to the front-rear direction.
  • the shape of the first fastening portion 22m which is bent at one point like an inverted V-shape or a "H" shape, allows the fastener elements to rotate and engage when a horizontal pulling force is applied to the fastener elements 9 and 10 in the engaged state.
  • the second fastening portion 22n by shaping the second fastening portion 22n as described above, rotation of the fastener element is suppressed.
  • the length of the neck portion 71 and the head portion 72 in the front-rear direction is shorter than the length of the second base portion 21n in the front-rear direction.
  • the neck portion 71 and the head portion 72 fit within the maximum width of the second base portion 21n in the front-rear direction. Thereby, when the left and right second fastening parts 22n engage with each other, it is possible to reduce the possibility of the two colliding (for example, largely or strongly).
  • the head 72 is longer than the neck 71 in the front-rear direction, and therefore has a front end 72p that projects further forward than the neck 71 and a rear end 72q that projects further rearward than the neck 71.
  • a recess 71p is formed between the front end 72p of the head 72 and the second base 21n to receive the rear end of the second fastening part of the front engagement partner.
  • a recess 71q is formed between the rear end 72q of the head 72 and the second base 21n to receive the front end of the second fastening part of the rear engaging partner.
  • the width W3 in the front-rear direction of the neck portion 71 is less than twice the width W4 in the left-right direction, preferably within the range of 1.5 times to 1.9 times.
  • the width W1 in the front-rear direction of the head 72 is at least twice the width W2 in the left-right direction, preferably within the range of 2.2 times to 2.9 times. Note that the condition W3 ⁇ W1 is satisfied, and optionally the condition W2 ⁇ W4 is also satisfied.
  • the second fastening part 22n may be provided at least partially offset rearward with respect to the first fastening part 22m.
  • the front surfaces of the neck portion 71 and the head portion 72 are located behind the apex 53 (or the inclined surfaces 51, 52) of the engagement convex portion 61, and the rear surfaces of the neck portion 71 and the head portion 72 are located behind the engagement recess portion 62. It is located behind the bottom point 56 (or the inclined surfaces 54, 55).
  • the engagement recess 62 may be covered by the rear part of the neck part 71 and the rear part of the head part 72 (see FIG. 5).
  • the front end 72p of the head 72 is offset from the vertex 53 and to the outside of the fastener tape 6, and the rear end 72q of the head 72 is located backward from the bottom point 56 and to the outside of the fastener tape 6. It can be located offset.
  • the rear corner portion 58 of the first fastening portion 22m may be positioned behind the front end 72p of the head 72 and ahead of the rear end 72q of the head 72 in the front-rear direction.
  • a plane CP1 is set perpendicular to the front-back direction with respect to the center of the width W21 of the first base 21m and second base 21n in the front-back direction.
  • 21n is symmetrically shaped with respect to the plane CP1).
  • the second fastening portion 22n can be shaped symmetrically with respect to the plane CP1. In this case, all the center points of the width of the second fastening portion 22n in the front-rear direction are included in the plane CP1.
  • the plane CP1 is also a plane defined by a series of center points of the width in the front-rear direction of the second fastening portion 22n or a plane including this plane area.
  • the first fastening part 22m is not shaped symmetrically with respect to the plane CP1. Further, the first fastening portion 22m may be positioned at least partially offset from the second fastening portion 22n in the front-rear direction. As a result, some of the center points of the width of the first fastening portion 22m in the front-rear direction can be positioned offset from the plane CP1.
  • a plane CP2 is also set.
  • the plane CP2 is a plane parallel to the plane CP1, and includes the center point between the apex 53 of the engagement convex portion 61 and the bottom point 56 of the engagement recess 62 in the front-rear direction (note that the engagement convex The apex 53 of the portion 61 and the bottom point 56 of the engagement recess 62 are arranged on a common plane parallel to the front-rear direction).
  • the center point P9 of the width of the first fastening part 22m in the front-rear direction moves diagonally forward toward the outside of the fastener tape from point a on plane CP1 in the figure toward point b on plane CP2, and then It is set so as to draw a trajectory (simply put, an inverted V-shaped trajectory) that moves obliquely backward from point b on CP2 toward point c on plane CP1.
  • a plane CP3 is defined by the continuity of the center point P9 between point a and point b.
  • a plane CP4 is defined by the continuity of the center point P9 between points b and c.
  • the first and second fastening portions 22m, 22n one of which is positioned at least partially offset from the other in the anteroposterior direction. Additionally or alternatively, between the first and second fastening portions 22m and 22n, one is connected to the other so that the distance between the plane CP4 and the plane CP1 in the front-rear direction changes in the left-right direction (decreases outward from the tape).
  • the vehicle is positioned at least partially offset in the front-rear direction relative to the vehicle.
  • plane CP3 and plane CP4 can intersect plane CP1 (or a plane including plane CP1 as a partial region). Thereby, it is possible to achieve both the integrity of the first fastening part 22m and the second fastening part 22n and ensuring a sufficient amount of offset.
  • the distance between the plane CP1 and the plane CP2 is 1/4 or more of the (constant or average or maximum or minimum) width W22m of the first fastening part 22m in the front-rear direction, and can be within a range of 1/2 or less thereof. .
  • the thickness of the first fastening part 22m and the second fastening part 22n can be set arbitrarily.
  • characteristics corresponding to engagement between the left and right first fastening parts 22m for example, sliding resistance of the slider and/or lateral pulling of the slide fastener 1) strength
  • the corresponding characteristics for example, the sliding resistance of the slider and/or the lateral pulling strength of the slide fastener 1 depending on the engagement between the left and right second fastening portions 22n.
  • the reverse is also true.
  • the first fastening part 22m is adapted to reduce the sliding resistance of the slider 4, and the second fastening part 22n is adapted to improve the horizontal pulling strength of the slide fastener 1.
  • the slide fastener 1 It is possible to secure the desired horizontal pulling strength.
  • the first fastening part 22m has a first (maximum) thickness T1
  • the second fastening part 22n has a second (maximum) thickness T2
  • T1>T2 is satisfied, preferably (1.1 ⁇ T2) ⁇ T1 ⁇ (1.4 ⁇ T2) is satisfied.
  • the second thickness T2 of the second fastening portion 22n is equal to the thickness of the head portion 72.
  • the neck portion 71 is formed to be thinner in the vertical direction than the head portion 72, so that when the slide fastener 1 is bent in the front-back direction when the left and right second fastening portions 22n are engaged, the front and rear adjacent fastener elements 9, 10 Stronger collision between the two is suppressed (see FIG. 8).
  • the main surface 71a of the neck portion 71 is provided closer to the plane PL1 regarding the fastener tape 6 (the plane PL1 is set at the center of the thickness of the fastener tape) than the main surface 72a of the head 72, A thickness difference D1 is formed between the main surface 71a and the main surface 72a.
  • the main surface 72a of the head 72 and the main surface 31 of the second base 21n may be arranged at the same height (that is, the same plane oriented parallel to the plane PL1).
  • a recessed portion whose bottom surface is the main surface 71a of the neck portion 71 is formed between the head portion 72 and the first base portion 21m.
  • the first fastening part 22m has a protruding part 81 that protrudes further to the outside of the tape than the second fastening part 22n.
  • This projection 81 is formed with a curved surface 82 adapted for contact with the side edge 7 of the fastener tape 5 .
  • the protrusion 81 may be shaped to have a thin end 83 at a position closer to the tip than the curved surface 82 .
  • the upper surface 84 of the thin end portion 83 is located further outward from the tape than the curved surface 82 and forms an edge together with the tip surface 85 of the protrusion 81 (and the thin end portion 83).
  • planes PL2 to PL4 perpendicular to the left-right direction are set.
  • the plane PL2 includes the tip point or tip surface of the tip surface 72b of the head 72.
  • PL3 includes the tip point or tip surface of the curved surface 82.
  • PL4 includes the tip point or tip surface of the protrusion 81 (and thin end portion 83).
  • the distance between the plane PL2 and the plane PL3 is larger than the distance between the plane PL3 and the plane PL4, which means that the horizontal width of the curved surface 82 is larger than the horizontal width of the upper surface 84.
  • the thickness T3 of the protrusion 81 gradually decreases toward the outside of the tape due to the upper curved surface 82 and the lower curved surface 86.
  • the curved surface 82 may be formed to intersect the plane PL1 regarding the fastener tape 6. This promotes reliable contact between the curved surface 82 and the contacting partner fastener tape 5.
  • the curved surface 82 is located closer to the fastener tape 6 than the distal end surface 85 of the protrusion 81, thereby forming a thin end portion 83.
  • the reason for providing the thin end portion 83 may be to optimize the gate cut. For example, immediately after injection molding, the gate is connected to the tip surface 85 of the protrusion 81, and the top surface of the gate is flush with the top surface of the thin end portion 83.
  • a gate cutter cuts the gate from the first fastening portion 22m side.
  • the travel distance of the gate cutter is shortened by the thinning of the protrusion 81, and optimization of gate cutting (for example, more efficient gate cutting or longer life of the cutter) is facilitated. Further, by providing the thin end portion 83, the formation of the curved surface 82 is facilitated. Note that gate marks may be formed on the tip surface 85 of the protrusion 81.
  • the protruding part 81 may be provided on the second fastening part 22n instead of the first fastening part 22m, and the same explanation as above applies in this case as well, so redundant explanation will be omitted. Omitted.
  • each of the left and right fastener elements 9, 10 has a contact surface 91 provided in at least a part of a differential area corresponding to the shape difference and positional difference between the first fastening part 22m and the second fastening part 22n.
  • the first fastening part 22m has a contact surface 91 provided in a range in front of the second fastening part 22n.
  • the contact surface 91 is provided to intersect or perpendicularly to the thickness direction of the fastener element, and is oriented so as to face upward.
  • the second fastening part 22n has a contact surface 92 provided in a rear range than the first fastening part 22m.
  • the contact surface 92 is provided to intersect or perpendicularly to the thickness direction of the fastener element, and is oriented so as to face downward.
  • the contact surfaces 91, 92 of the left and right fastener elements 9, 10 come close to each other or come into contact with each other, and a corresponding waterproof property is obtained. This facilitates both the water-stopping property of the slide fastener 1 and other properties (for example, the sliding resistance of the slider 4 and the horizontal pulling strength of the slide fastener 1).
  • the left and right fastener elements 9 and 10 enter the slider 4 from the left and right front openings of the slider 4.
  • the left and right fastener elements 9, 10 start engaging between the connecting post 43 and the rear opening, and then the engagement is completed.
  • the first fastening parts 22m engage with each other
  • the second fastening parts 22n engage with each other.
  • the contact surfaces 91 and 92 of the left and right fastener elements 9 and 10 approach or come into contact with each other.
  • the contact surface 91 of element 10i (see FIG. 9) is different from the contact surface 92 of element 9g (see FIG. 9). (see FIG. 10), that is, both surfaces are overlapped.
  • the contact surface 92 (see FIG. 10) of the element 10i is close to or in contact with the contact surface 91 (see FIG. 9) of the element 9h, that is, both surfaces are overlapped.
  • the contact surfaces 91 (facing upward) and the contact surfaces 92 (facing downward) are close to each other or in contact between pairs of adjacent elements before and after the fastener elements to be engaged alternately. This makes the gap between the fastener elements very small and blocks the flow path of liquid (eg, water).
  • the first fastening part 22m is located further outside the tape than the second fastening part 22n in a differential area corresponding to the shape difference and positional difference between the first fastening part 22m and the second fastening part 22n.
  • An additional contact surface 93 can be included in the range of .
  • the first fastening part 22m since the first fastening part 22m protrudes further to the outside of the tape than the second fastening part 22n, the first fastening part 22m includes an additional contact surface 93.
  • This additional contact surface 93 may include a curved surface 82 as shown.
  • the additional contact surface 93 is not provided with the curved surface 82 and the contact surface 93 is a flat surface or an inclined surface is also assumed.
  • the contact surface 93 (curved surface 82) of the fastener element 9 touches the side edge 8 (for example, , core string).
  • the second base portion 21n of the fastener element 10 that is the engagement partner is located above the contact surface 93 (curved surface 82) of the fastener element 9.
  • the contact surface 93 (curved surface 82) of the fastener element 9 contacts the side edge 8 of the fastener tape 6 to which the fastener element 10 is attached, and also approaches or contacts the second base 21n of the fastener element 10. .
  • the gap created between the fastener element and the fastener tapes 5, 6 becomes extremely small, and the flow path of liquid (for example, water) is blocked.
  • FIG. 12 shows a cross section of an element row in which fastener elements 9 and 10 are engaged with each other. It is shown that the contact surfaces 91 (facing upward) and the contact surfaces 92 (facing downward) of adjacent fastener elements in the front-rear direction are close to or in contact with each other. Note that there may also be a configuration in which the liquid flow path is not completely blocked due to the proximity or contact of the contact surfaces 91 and 92. For example, it is assumed that liquid flows between the contact surfaces 91 and 92 due to capillary action.
  • the provision of the contact surfaces 91 and 92 allows the liquid to flow from the upper side to the lower side so as to penetrate the slide fastener 1, compared to a configuration in which the contact surfaces 91 and 92 are not provided. is suppressed.
  • a configuration may also be considered in which the flow path for liquid with high viscosity is blocked, but the flow path for liquid with low viscosity is not blocked.
  • the first fastening part 22m has a front part 65 and a rear part 66 that is thicker than the front part 65, and a wall surface 67 facing the front is formed.
  • FIG. 13 is a schematic top view of another example of a fastener element.
  • the contact surface 91 of the fastener element 10 is provided with a raised portion 96.
  • a raised portion 96 may be provided in the entire area of the difference between the first fastening portion 22m and the second fastening portion 22n, and this form is illustrated in FIG. 4.
  • There is a space between the contact surface 92 of the fastener elements 9, 10 and the contact surface 91 of the opposing fastener element 10, 9, and the raised portion 96 of the fastener element 10 partially fills the space.
  • FIG. 13 is a schematic top view of another example of a fastener element.
  • the contact surface 91 of the fastener element 10 is provided with a raised portion 96.
  • a raised portion 96 may be provided in the entire area of the difference between the first fastening portion 22m and the second fastening portion 22n, and this form is illustrated in FIG. 4.
  • the space is formed larger, the degree of collision between the fastener elements 9 and 10 during engagement is reduced, and the sliding resistance of the slider 4 is suppressed.
  • the circumferential surface of the portion corresponding to the raised portion 96 is a curved surface, collision between the fastener elements 9 and 10 during engagement is suppressed.
  • the contact surface 92 of the fastener element 9 can also be formed with a complementary shaped recessed receptacle 99 in which the raised portion 96 is received. According to such additional engagement or fitting, the coupling between the fastener elements 9 and 10 can be enhanced.
  • FIG. 15 is a schematic top view of a further example of a fastener element.
  • the second fastening part 22n includes a part that protrudes outward from the tape than the first fastening part 22m, that is, the second fastening part 22n is provided with the above-mentioned protruding part 81. Ru.
  • the various features described above are also applicable to this form (repeated explanation will be omitted).
  • FIG. 16 is a schematic top view of yet another example of a fastener element.
  • flat tapered surfaces 73 and 74 that approach each other as the tape extends outward can be formed on the head 72 of the second fastening portion 22n.
  • An intermediate surface 75 is formed between the tapered surfaces 73 and 74, and preferably extends flatly in the front-rear direction.
  • the shoulder surfaces 76 and 77 of the fastener element 10 are formed as tapered surfaces that approach each other as they extend outward from the tape, corresponding to the tapered surfaces 73 and 74.
  • the shoulder surface 76 extends along the plane PP2 or has a region included in the plane PP2. The same relationship applies to the tapered surface 74 and the shoulder surface 77.
  • the left and right fastener elements 9 and 10 when the left and right fastener elements 9 and 10 are engaged as shown in FIG. 17, the left and right fastener elements 9, 10, and the gap between the fastener element 9 and the fastener tape 6 (similarly, the gap between the fastener element 10 and the fastener tape 5) can be easily reduced. Further, as shown in FIG. 18, it is possible to avoid or reduce the degree of collision between the heads 72 of the second fastening portions 22n of the left and right fastener elements 9, 10 within the slider 4. This makes it possible to reduce the force necessary for sliding the slider 4 in relation to the engagement between the second fastening portions 22n of the left and right fastener elements 9, 10.

Landscapes

  • Slide Fasteners (AREA)
  • Toys (AREA)
  • Connection Of Plates (AREA)

Abstract

Dans la présente invention, chacun des éléments de fixation gauche et droit (9, 10) comprend des première et seconde sections de fixation (22m, 22n) disposées de façon à être empilées dans une direction d'épaisseur d'élément de fixation. Les premières sections de fixation (22m) des éléments de fixation gauche et droit (9, 10) peuvent venir en prise l'une avec l'autre, et les secondes sections de fixation (22n) des éléments de fixation gauche et droit (9, 10) peuvent venir en prise l'une avec l'autre. Les première et seconde sections de fixation (22m, 22n) ont des formes différentes et sont positionnées de telle sorte que l'une des première et seconde sections de fixation (22m, 22n) est au moins partiellement décalée par rapport à l'autre dans la direction avant-arrière. Chacun des éléments de fixation gauche et droit (9, 10) comprend en outre des surfaces de contact (91, 92) disposées dans au moins une partie d'une région différentielle correspondant à la différence de forme et à la différence de position entre les première et seconde sections de fixation (22m, 22n).
PCT/JP2022/016916 2022-03-31 2022-03-31 Fermeture à glissière WO2023188402A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2022/016916 WO2023188402A1 (fr) 2022-03-31 2022-03-31 Fermeture à glissière
TW111126767A TWI840884B (zh) 2022-03-31 2022-07-18 拉鏈

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460525A (en) * 1944-11-21 1949-02-01 Louis H Morin Universally united scoop for separable fasteners
US2479696A (en) * 1946-03-12 1949-08-23 Louis H Morin Separable fastener stringer
JPS5361204U (fr) * 1976-10-23 1978-05-24
JPS53142204U (fr) * 1977-04-13 1978-11-10
WO2012059972A1 (fr) * 2010-11-01 2012-05-10 Ykk株式会社 Fermeture à glissière
WO2014002234A1 (fr) * 2012-06-28 2014-01-03 Ykk株式会社 Fermeture à glissière étanche à l'eau
WO2016046915A1 (fr) * 2014-09-24 2016-03-31 Ykk株式会社 Élément de fermeture, demi-chaîne de fermeture, et fermeture à glissière
WO2018212304A1 (fr) * 2017-05-19 2018-11-22 Ykk株式会社 Fermeture à glissière

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460525A (en) * 1944-11-21 1949-02-01 Louis H Morin Universally united scoop for separable fasteners
US2479696A (en) * 1946-03-12 1949-08-23 Louis H Morin Separable fastener stringer
JPS5361204U (fr) * 1976-10-23 1978-05-24
JPS53142204U (fr) * 1977-04-13 1978-11-10
WO2012059972A1 (fr) * 2010-11-01 2012-05-10 Ykk株式会社 Fermeture à glissière
WO2014002234A1 (fr) * 2012-06-28 2014-01-03 Ykk株式会社 Fermeture à glissière étanche à l'eau
WO2016046915A1 (fr) * 2014-09-24 2016-03-31 Ykk株式会社 Élément de fermeture, demi-chaîne de fermeture, et fermeture à glissière
WO2018212304A1 (fr) * 2017-05-19 2018-11-22 Ykk株式会社 Fermeture à glissière

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