WO2021090494A1 - Fermeture à glissière - Google Patents

Fermeture à glissière Download PDF

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Publication number
WO2021090494A1
WO2021090494A1 PCT/JP2019/043961 JP2019043961W WO2021090494A1 WO 2021090494 A1 WO2021090494 A1 WO 2021090494A1 JP 2019043961 W JP2019043961 W JP 2019043961W WO 2021090494 A1 WO2021090494 A1 WO 2021090494A1
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WO
WIPO (PCT)
Prior art keywords
butterfly rod
main body
fastener
butterfly
side edge
Prior art date
Application number
PCT/JP2019/043961
Other languages
English (en)
Japanese (ja)
Inventor
祐介 細川
典央 魚住
悠吾 松尾
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/JP2019/043961 priority Critical patent/WO2021090494A1/fr
Priority to TW109113358A priority patent/TWI727758B/zh
Publication of WO2021090494A1 publication Critical patent/WO2021090494A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/38—Means at the end of stringer by which the slider can be freed from one stringer, e.g. stringers can be completely separated from each other

Definitions

  • the present invention relates to a slide fastener having an opening / closing fitting.
  • a pair of left and right fastener stringers may be provided with open / detachable fittings.
  • the disengagement fitting generally has a wing bar formed on one fastener stringer and a box rod and box body formed on the other fastener stringer.
  • the left and right fastener stringers can be separated separately.
  • the slide fastener 80 of Patent Document 1 includes a butterfly rod 83 provided on the left fastener stringer 81, and a box rod 84 and a box body 85 provided on the right fastener stringer 81.
  • An open / detachment fitting 82 provided with the above is provided.
  • the box body 85 is integrally formed with the box bar 84 at the lower end of the box bar 84.
  • the box body 85 is provided with a butterfly rod accommodating portion (not shown) for inserting and accommodating the butterfly rod 83.
  • the butterfly rod 83 of Patent Document 1 has a prismatic butterfly rod main body 83a fixed to the fastener tape 87, a notch 83b provided in the middle portion of the butterfly rod main body 83a, and a length in the butterfly rod main body 83a. It has an element mounting portion 83c provided at one end in the longitudinal direction and an element inserting portion 83d protruding from the element mounting portion 83c in the length direction. In this case, a step is provided between the element mounting portion 83c and the top end surface arranged at one end in the length direction of the butterfly rod main body portion 83a.
  • the element insertion portion 83d of the butterfly rod 83 is inserted into the fastener stringer 81 on the right side.
  • the butterfly rod 83 and the first element can be engaged with each other by inserting them into a fastener element (hereinafter, this fastener element is referred to as a first element) adjacent to the box body 85.
  • this fastener element is referred to as a first element
  • the first element can be placed and held on the element mounting portion 83c of the butterfly rod 83.
  • the left and right fastener stringers 81 described in Patent Document 1 are formed by sewing a plurality of coiled fastener elements together with a core cord to the tape side edge portion of the fastener tape 87. .. As a result, each fastener element forming the element row 86 is firmly fixed to the fastener tape 87 by the sewing thread.
  • the slide fastener 80 pulls the butterfly rod 83 and the box rod 84 outward in the width direction so as to be separated from each other (horizontal pulling load). Even if it receives, it is easy to maintain the state in which the element insertion portion 83d of the butterfly rod 83 is engaged with the first element, so that the meshing of the left and right element rows 86 is partially disengaged. It can be made less likely to occur.
  • a braided slide fastener having an advantage of excellent flexibility and texture is known.
  • This braided slide fastener is formed by knitting a fastener element into a warp-knitted fastener tape at the same time as knitting the fastener tape, and is often used for thin clothing such as underwear.
  • an open / detachable insertion tool may be provided at one end of the braided slide fastener in order to make the left and right fastener stringers separable.
  • the braided slide fastener has a property of being excellent in flexibility, the fastener tape and the fastener element fixed to the fastener tape are formed softly.
  • the element insertion portion engages with the first element.
  • the element insertion portion can be easily pulled out from the first element as compared with the slide fastener 80 as in Patent Document 1. As a result, meshing cracks may occur in the left and right element rows.
  • the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is, for example, when a slide fastener is flexible but receives a lateral pulling force in the vicinity of an opening / closing fitting. It is an object of the present invention to provide a slide fastener capable of making it difficult for meshing cracks to occur.
  • the slide fastener provided by the present invention is a pair of left and right first fastener stringers and second fastener stringers in which a coiled element row is formed on the tape side edge of a long fastener tape.
  • the first fastener stringer and the opening / removing fitting tool provided at one end in the length direction of the second fastener stringer are provided, and the opening / closing fitting is adjacent to one end of the element row.
  • a slide fastener having a box body provided with a butterfly rod accommodating portion into which the first fastener stringer is inserted, and the width direction in which the first fastener stringer is arranged with respect to the second fastener stringer is the first width direction.
  • the direction in the width direction opposite to the first width direction is defined as the second width direction
  • the butterfly rod has a long butterfly rod main body portion in the length direction and one end portion in the length direction in the butterfly rod main body portion.
  • the extension portion extending from the second width direction, the element insertion portion protruding from the extension portion toward the element row, and the other end portion in the length direction of the butterfly rod main body portion in the first width direction.
  • the butterfly rod main body portion has a first side edge portion facing in the first width direction and a second side edge portion facing in the second width direction.
  • the first side edge portion of the butterfly rod main body portion is constricted with the central portion in the length direction of the first side edge portion recessed in the second width direction side in the plan view of the opening / detaching fitting insertion tool.
  • the inner wall portion of the butterfly rod accommodating portion in the box body having a shape is provided on the facing side wall portion arranged on the side of the butterfly rod main body portion facing the first side edge portion and the facing side wall portion. It is characterized by having an engaging concave portion into which the engaging convex portion of the butterfly rod is inserted.
  • the butterfly rod has a shape that allows the butterfly rod to rotate with respect to the box body and the box rod in a state where the engaging convex portion is hooked on the engaging concave portion.
  • the first side edge portion of the butterfly rod main body portion is the butterfly rod accommodating portion in a state where the engaging convex portion is caught by the engaging concave portion due to the rotation of the butterfly rod.
  • the facing side wall portion has a shape capable of contacting an end portion close to the element row.
  • the element insertion portion of the butterfly rod is arranged on the first width direction side of the portion most protruding in the width direction of the box rod in the width direction.
  • the first side edge portion of the butterfly rod main body portion has a shape capable of contacting an end portion of the butterfly rod accommodating portion on the facing side wall portion close to the element row.
  • the butterfly rod main body portion when a virtual reference line is extended along the length direction from the boundary portion between the first side edge portion of the butterfly rod main body portion and the engaging convex portion, the butterfly rod main body portion
  • the maximum value of the width dimension at the distance formed between the first side edge portion and the reference line of the constricted shape is 5% or more of the width dimension of the butterfly rod main body portion in the portion having the maximum value. It is preferably 40% or less.
  • the engaging convex portion of the butterfly rod extends from the boundary portion of the butterfly rod main body portion with the first side edge portion to the other end in the length direction of the butterfly rod main body portion in the length direction. It is preferable that the maximum value of the length dimension of the engaging convex portion provided continuously is 5% or more and 20% or less of the maximum value of the length dimension of the butterfly rod main body portion.
  • the reference line in the engaging convex portion is extended.
  • the maximum value of the width dimension of is preferably 5% or more and 40% or less of the width dimension of the butterfly rod main body portion at the boundary portion.
  • the element insertion portion of the wing bar is changed to the first fastener stringer.
  • the engaging convex part of the butterfly rod is caught in the engaging concave part of the box body to maintain the engaged state, and the butterfly rod is attached to the box rod and the box body.
  • the first side edge portion of the wing rod can be brought into contact with the facing side wall portion of the box body.
  • the lateral pulling force received by the slide fastener is applied not only to the engaging portion between the element insertion portion and the first element but also between the engaging convex portion and the engaging concave portion. Since the combined portion and the portion where the first side edge portion of the butterfly rod and the facing side wall portion of the box body are in contact with each other can be dispersed, these three portions can withstand the lateral pulling force. Therefore, the strength of the slide fastener with respect to the lateral pulling force (hereinafter referred to as the lateral pulling strength) can be effectively increased.
  • the slide fastener of the present invention for example, even if the left and right first and second fastener stringers are woven fastener stringers having flexibility in which the fastener elements are woven into the fastener tape, for example, the slide fastener is repeated. Even if the first element and the element insertion portion are worn and the engagement between the two is weakened by the use of the slide fastener, it is possible to provide an appropriate lateral pulling strength that can withstand the use of the slide fastener. Therefore, when the slide fastener receives a lateral pulling force in the vicinity of the opening / detaching fitting, it is easy to maintain the engaged state between the element insertion portion of the butterfly rod and the first element, and the butterfly rod is made into a box body. It is possible to prevent the butterfly rod from coming out of the accommodating portion, thereby making it difficult for the left and right element rows to crack.
  • the butterfly rod rotates in a direction in which the extending portion of the butterfly rod separates from the box rod in a state where the engaging convex portion is caught in the engaging concave portion with respect to the box body and the box rod.
  • the first side edge portion of the butterfly rod main body portion is an element row in the facing side wall portion of the butterfly rod accommodating portion in a state where the engaging convex portion is caught in the engaging concave portion by the rotation of the butterfly rod. It has a shape that allows it to come into contact with the end close to. As a result, the lateral pulling force received by the slide fastener is applied to the engaging portion of the engaging convex portion and the engaging concave portion, and the portion where the first side edge portion of the butterfly rod and the facing side wall portion of the box body are in contact with each other. Can be effectively dispersed.
  • the butterfly rod is in a state where the element insertion portion of the butterfly rod is arranged on the first width direction side of the most protruding portion in the width direction of the box rod in the width direction due to the rotation of the butterfly rod.
  • the first side edge portion of the rod body portion has a shape capable of contacting the end portion of the opposite side wall portion of the butterfly rod accommodating portion close to the element row. This makes it possible to rotate the butterfly rod significantly from a predetermined position before receiving the lateral pulling force when the lateral pulling force is applied, thereby effectively increasing the lateral pulling strength of the slide fastener. be able to.
  • the butterfly rod main body portion when a virtual reference line is extended along the length direction from the boundary portion between the first side edge portion of the butterfly rod main body portion and the engaging convex portion, the butterfly rod main body portion is constricted.
  • the maximum value (maximum width dimension) of the width dimension at the distance formed between the first side edge portion of the shape and the reference line is 5% or more and 40% or more of the width dimension of the butterfly rod main body portion in the portion having the maximum value. % Or less.
  • the engaging convex portion of the butterfly rod is continuous with the region in the length direction from the boundary portion with the first side edge portion of the butterfly rod main body portion to the other end in the length direction in the butterfly rod main body portion. It is formed as one protruding portion provided in the above.
  • the maximum value of the length dimension of the engaging convex portion is 5% or more and 20% or less of the maximum value of the length dimension of the butterfly rod main body portion.
  • the reference line at the engaging convex portion is extended.
  • the maximum value (maximum width dimension) of the width dimension is 5% or more and 40% or less of the width dimension of the wing bar main body portion at the boundary portion.
  • FIG. 1 shows typically the main part of the slide fastener which concerns on embodiment of this invention. It is a top view which shows typically the main part of the 1st fastener stringer on the right side in the slide fastener shown in FIG. It is a top view which shows typically the main part of the 2nd fastener stringer on the left side in the slide fastener shown in FIG. It is sectional drawing which shows typically the state in which the butterfly bar is rotated in the opening-separation fitting insertion tool. It is a top view which shows the conventional slide fastener. It is a perspective view which shows the butterfly bar of the slide fastener shown in FIG.
  • the fastener stringer in the slide fastener of the present embodiment is formed by a braided fastener stringer as described later, but in the fastener stringer of the present invention, a plurality of fastener elements continuous in a coil shape are woven or knitted. It may be a fastener stringer fixed to the fastener tape by a sewing thread.
  • FIG. 1 is a plan view schematically showing a main part of the slide fastener of the present embodiment.
  • FIG. 2 is a plan view schematically showing a butterfly rod provided on the slide fastener
  • FIG. 3 is a plan view schematically showing a box rod and a box body provided on the slide fastener
  • FIG. 4 is an open view. It is sectional drawing which shows typically the state which the wing rod rotates in contact with a box body in a detachment insert.
  • the front-rear direction refers to the length direction of the fastener tape parallel to the sliding direction of the slider in the slide fastener, and in particular, the direction in which the slider slides so as to mesh the left and right element rows (closing direction). ) Is the front, and the sliding direction (separation direction) is the rear so as to separate the left and right element rows.
  • the left-right direction refers to the width direction of the fastener tape, for example, a direction orthogonal to the sliding direction of the slider and parallel to the front surface (upper surface) and the back surface (lower surface) of the fastener tape.
  • the first fastener stringer on the right side provided with the butterfly rod of the opening / detaching fitting is arranged with respect to the second fastener stringer on the left side provided with the box rod and the box body of the opening / closing fitting tool described later.
  • the direction in the width direction is defined as the first width direction (right direction), while the first fastener stringer on the right side having a wing bar is compared with the second fastener stringer on the left side having a box rod and a box body.
  • the direction in the width direction in which is arranged is defined as the second width direction (left direction).
  • the vertical direction refers to the direction orthogonal to the front-rear direction and the left-right direction, for example, the front and back directions of the tape orthogonal to the front and back surfaces of the fastener tape.
  • the direction on which the fastener element is fixed with respect to the fastener tape is upward, and the direction on the opposite side is downward.
  • the slide fastener 1 of the present embodiment shown in FIG. 1 is provided at the rear ends of a pair of left and right first fastener stringers 10a and second fastener stringers 10b, and first fastener stringers 10a and second fastener stringers 10b. It has a fitting 20 and a slider (not shown) that is slidably attached to the element rows 12 of the first and second fastener stringers 10a and 10b.
  • the first fastener stringer 10a having the butterfly rod 30 of the opening / detaching fitting 20 is arranged on the right side of the slide fastener 1, and the box rod of the opening / detaching insert 20 is arranged.
  • a second fastener stringer 10b having 40 and a box body 50 is arranged on the left side of the slide fastener 1.
  • a slider pull (not shown) is formed as a so-called back-use type slide fastener 1 provided on the back surface side (lower surface side) of the fastener tape 11.
  • the slide fastener 1 of the present embodiment may be formed as a normal type slide fastener by providing a slider pull tab on the front surface side (upper surface side) of the fastener tape 11.
  • a film member made of synthetic resin may be attached to the back surface of the tape of the fastener tape 11 by adhesion or the like.
  • the slide fastener 1 may be water-stopped by subjecting the fastener tape 11 including the film member to a water-repellent treatment.
  • the slider of this embodiment is formed substantially in the same manner as the slider used in the conventional back-use type slide fastener. Therefore, in the present embodiment, detailed description and illustration of the slider will be omitted.
  • the first and second fastener stringers 10a and 10b are braided fastener stringers having a long fastener tape 11 in the front-rear direction and a plurality of fastener elements 13 woven and fixed to a part of the fastener tape 11, respectively. It is formed.
  • the fastener element 13 is displayed so as to be overlapped on the fastener tape 11 in order to make it easy to understand.
  • the fastener element 13 is a fastener tape. It is sandwiched and fixed in the thickness direction by 11 knitting yarns.
  • the plurality of fastener elements 13 are continuously formed in a coil shape. Further, the element rows 12 are formed along the length direction of the fastener tape 11 by the plurality of fastener elements 13 woven into the fastener tape 11.
  • the first and second fastener stringers 10a and 10b of the present embodiment have higher flexibility than, for example, a normal general fastener stringer in which a plurality of fastener elements are sewn on a woven fastener tape. It is soft and soft.
  • the fastener element 13 arranged adjacent to the box bar 40 of the opening / detaching fitting 20 is defined as the first element 13a.
  • the fastener tape 11 has a tape main body portion that serves as a attachment portion to a fastener attachment member such as clothing, and an element attachment portion that extends in the width direction from one side edge of the tape main body portion and to which the fastener element 13 is fixed.
  • a reinforcing film 11a that reinforces the fastener tape 11 is attached to the rear end of the tape on which the opening / detaching fitting 20 of the fastener tape 11 is provided.
  • the plurality of fastener elements 13 are formed by molding one synthetic resin monofilament into a coil shape, and are substantially the same as general fastener elements used in conventional braided fastener stringers. Has a morphology.
  • each fastener element 13 of the present embodiment includes a meshing head, an upper leg portion extending in the width direction from the upper end portion of the meshing head, and a lower leg portion extending in the width direction from the lower end portion of the meshing head. It has a connecting portion (also referred to as an inversion portion) for connecting the fastener elements 13 adjacent to each other in the length direction.
  • the meshing head is projected outward from the tape side edge of the fastener tape 11, and the upper leg portion and the lower leg portion are woven into the element mounting portion. Is fixed by.
  • the opening / detaching fitting 20 of the present embodiment includes a butterfly rod 30 provided at the rear end of the first fastener stringer 10a on the right side, a box rod 40 provided at the rear end of the second fastener stringer 10b on the left side, and the like. It has a box body 50 integrally formed at the rear end of the box rod 40.
  • the butterfly rod 30, the box rod 40, and the box body 50 of the opening / detaching fitting 20 are formed by injection molding the fastener tape 11 using a synthetic resin such as polyacetal, polyamide, or polypropylene.
  • the material of the opening / detaching fitting 20 is not particularly limited. Further, for example, the positional relationship between the butterfly rod 30 and the box rod 40 and the box body 50 is reversed to the left and right, the butterfly rod 30 is provided on the fastener tape 11 on the left side, and the box rod 40 and the box body 50 are provided on the fastener tape 11 on the right side. It is also possible to configure the opening / detaching fitting 20 by providing the above.
  • the butterfly rod 30 of the present embodiment is arranged adjacent to the element row 12 so as to be continuous from the rear end portion of the element row 12 formed on the first fastener stringer 10a. Further, the butterfly rod 30 is fixed to the tape front surface and the tape back surface of the fastener tape 11, and the upper portion formed on the tape surface of the butterfly rod 30 and the lower portion formed on the tape back surface are formed. , The wing bar 30 is connected by a portion formed on the outer side of the tape side edge of the fastener tape 11.
  • the butterfly rod 30 has, for example, a butterfly rod main body 31 directly fixed to the fastener tape 11 and a front end portion (length) of the butterfly rod main body 31 as shown in FIG. 2 when the butterfly rod 30 is viewed from above.
  • the element insertion portion 33 protruding from the extension portion 32, and the butterfly rod main body portion 31. It has an engaging convex portion 34 projecting from an end portion (the other end portion in the length direction).
  • the butterfly rod body 31 has a substantially columnar shape that is elongated in the front-rear direction.
  • the butterfly rod main body 31 is a right edge portion (first side edge portion) 31a facing the right side away from the second fastener stringer 10b in a plan view (FIG. 1 or 2) of the opening / detaching fitting 20 or the butterfly rod 30.
  • the right edge portion 31a of the butterfly rod main body 31 is a side edge portion formed toward the fastener tape 11 of the butterfly rod main body 31, and the left edge portion 31b is the width of the butterfly rod main body 31. It is a side edge portion formed so as to face the side opposite to the fastener tape 11 in the direction.
  • the right edge portion 31a of the butterfly rod main body portion 31 is constricted in a bow shape by the central portion (or substantially the central portion) in the front-rear direction of the right edge portion 31a being recessed to the left. It is formed in a shape.
  • the left edge portion 31b of the butterfly rod main body 31 has a central portion in the front-rear direction of the butterfly rod main body 31 extending straight along the front-rear direction, and is gently curved to the right at the rear end portion of the butterfly rod main body 31. It is formed in a shape that makes it.
  • the butterfly rod 30 passes through the element guide path formed between the upper and lower wing plates of the slider. Then, when the butterfly rod 30 is inserted into the butterfly rod accommodating portion 51 described later of the box body 50, the butterfly rod 30 is less likely to be caught by the slider or the box body 50, and the insertion operation of the butterfly rod 30 can be smoothly performed.
  • the butterfly rod main body 31 of the butterfly rod 30 inserted into the box body 50 and the box body 50 will be described later.
  • An appropriate space can be provided between the right facing side wall portion 51a. Due to the existence of this space, when the slide fastener 1 receives a lateral pulling force, the butterfly rod 30 can be easily hooked on the engaging concave portion 52 of the box body 50, which will be described later, with the engaging convex portion 34 of the butterfly rod 30. It becomes possible to rotate.
  • the extending portion 32 of the butterfly rod 30 projects to the left side (second width direction side) of the left side edge portion 31b of the butterfly rod main body portion 31.
  • An insertion recess 32a capable of inserting and accommodating a projecting piece portion 42b of the box body 50, which will be described later, is formed in the extending portion 32 and a part of the butterfly rod main body portion 31 in the right direction from the left side surface of the butterfly rod 30. It is recessed toward the first width direction).
  • the element insertion portion 33 has a size capable of engaging with the first element 13a of the second fastener stringer 10b, and protrudes forward from the extension portion 32.
  • the fact that the element insertion portion 33 engages with the first element 13a means that the element insertion portion 33 is inserted between the upper leg portion and the lower leg portion of the first element 13a.
  • the front end (tip) of the element insertion portion 33 is arranged at the same position as the front end surface of the butterfly rod main body portion 31 in the length direction.
  • the front end (tip) of the element insertion portion 33 is arranged at the same position as the front end surface of the butterfly rod main body portion 31 in the length direction.
  • a head insertion portion 35 into which the meshing head of the first element 13a can be inserted is formed.
  • the engaging convex portion 34 projects from the rear end portion of the butterfly rod main body portion 31 in a direction away from the second fastener stringer 10b (first width direction).
  • the side edge of the engaging convex portion 34 is bent from the right edge portion (first side edge portion) 31a of the butterfly rod main body 31 via the boundary portion 36.
  • the engaging convex portion 34 is continuously provided in the length direction from the boundary portion 36 of the butterfly rod main body 31 with the right edge portion 31a to the position of the rear end of the butterfly rod main body 31. Further, the rear end of the engaging convex portion 34 and the rear end of the butterfly rod main body portion 31 are arranged at the same positions with respect to the length direction of the fastener tape 11. Further, the butterfly rod main body 31 of the present embodiment is provided on both the tape front surface (upper surface) and the tape back surface (lower surface) of the fastener tape 11, but the engaging convex portion 34 is the tape surface (upper surface) of the fastener tape 11. It is provided only on the upper surface).
  • the inclination angle ⁇ 1 formed between the side edge extending from the boundary portion 36 of the engaging convex portion 34 and the right edge portion 31a extending from the boundary portion 36 of the butterfly rod main body portion 31 is larger than 90 °. , 160 ° or less, preferably 110 ° or more and 140 ° or less.
  • the inclination angle ⁇ 1 is larger than 90 °, preferably 110 ° or more, the above-mentioned insertion operation of the wing bar 30 can be smoothly performed.
  • the inclination angle ⁇ 1 is 160 ° or less, preferably 140 ° or less, the engaging convex portion 34 of the butterfly rod 30 can be easily hooked and engaged with the engaging concave portion 52 of the box body 50. ..
  • the maximum value L1 of the length dimension (dimension in the length direction) of the engaging convex portion 34 is preferably 5% or more and 20% or less of the maximum value L2 of the length dimension of the butterfly rod main body 31. Is 5% or more and 15% or less. Since the maximum value L1 of the engaging convex portion 34 is 5% or more of the maximum value L2 of the butterfly rod main body 31, the engaging convex portion 34 can be easily hooked on the engaging concave portion 52 of the box body 50. it can. Further, when the butterfly rod 30 rotates under the lateral pulling force, it is possible to easily maintain the state in which the engaging convex portion 34 is caught in the engaging concave portion 52.
  • the butterfly rod 30 is placed in the butterfly rod accommodating portion 51 of the box body 50. It is possible to facilitate the insertion operation.
  • the engagement is performed.
  • the maximum width dimension W1 from the virtual reference line 39 in the convex portion 34 is 5% or more and 40% or less, preferably 10% or more and 30% or less of the width dimension W2 of the butterfly rod main body portion 31 at the boundary portion 36.
  • the maximum width dimension W1 of the engaging convex portion 34 is 5% or more, preferably 10% or more of the width dimension W2 of the butterfly rod main body 31 at the boundary portion 36, so that the engaging convex portion 34 is formed into a box body 50. It can be easily hooked on the engaging recess 52 of the wing rod 30, and the hooked state can be easily maintained when the wing bar 30 is rotated. Further, the engaging protrusion 34 can have an appropriate strength.
  • the maximum width dimension W1 of the engaging convex portion 34 is 40% or less, preferably 30% or less of the width dimension W2 of the butterfly rod main body 31 at the boundary portion 36, so that the box body 50 of the butterfly rod 30 It is possible to facilitate the insertion operation for.
  • the right edge portion 31a of the butterfly rod main body 31 is formed by being constricted as described above, so that the right edge portion 31a of the butterfly rod main body 31 is formed in a plan view of the butterfly rod 30.
  • a gap 38 is formed between the virtual reference line 39 and the virtual reference line 39.
  • the maximum width dimension W3 of the interval 38 is 5% or more and 40% or less, preferably 10% or more and 30% of the width dimension W4 of the butterfly bar main body 31 corresponding to the portion where the maximum width dimension W3 is measured. It is as follows.
  • the maximum width dimension W3 of the interval 38 is 5% or more, preferably 10% or more of the width dimension W4 of the corresponding portion of the butterfly rod main body 31, so that the butterfly rod 30 is applied when a lateral pulling force is applied. Can be rotated greatly. Further, it is possible to facilitate the insertion operation of inserting the butterfly rod 30 into the butterfly rod accommodating portion 51 of the box body 50.
  • the maximum width dimension W3 of the interval 38 is 40% or less, preferably 30% or less of the width dimension W4 of the corresponding portion of the butterfly rod main body 31, thereby stabilizing the strength of the butterfly rod main body 31.
  • the right edge portion 31a of the butterfly rod 30 and the right facing side wall portion 51a of the box body 50 which will be described later, are appropriately brought into contact with each other, and the lateral pulling force is applied at the contact portion. You can resist.
  • the box bar 40 of the present embodiment is arranged adjacent to the element row 12 so as to be continuous from the rear end portion of the element row 12 formed on the second fastener stringer 10b. Further, the box bar 40 projects from the substantially columnar box bar main body 41 directly fixed to the fastener tape 11 and from the box bar main body 41 toward the first fastener stringer 10a in the right direction (first width direction). It has a stopper portion 42.
  • the stopper portion 42 includes a stopper base portion 42a having the same thickness dimension (dimension in the thickness direction) as the box rod main body portion 41, and a projecting piece portion 42b extending to the right with a thickness dimension smaller than that of the stopper base portion 42a.
  • the extension portion 32 of the butterfly rod 30 comes into contact with the stopper base portion 42a of the stopper portion 42, and the projecting piece portion 42b of the box body 50 is inserted into the insertion recess 32a of the butterfly rod 30 to form the front wall portion in the insertion recess 32a.
  • the butterfly rod 30 inserted into the box body 50 can be stably held at a predetermined accommodation position in the front-rear direction and the vertical direction with respect to the box body 40 and the box body 50.
  • the box body 50 of the present embodiment is integrally formed at the rear end of the box bar main body 41 with a thickness larger than that of the box bar 40 via a step.
  • the box body 50 has a substantially rectangular parallelepiped outer shape, and a butterfly rod accommodating portion (accommodation space portion) 51 capable of inserting and accommodating the butterfly rod 30 is provided in a substantially right half portion of the box body 50. Has been done. Further, an insertion groove portion (not shown) through which the fastener tape 11 of the first fastener stringer 10a is inserted is provided on the right side surface portion of the box body 50.
  • the butterfly rod accommodating portion 51 of the box body 50 penetrates the entire length direction from the front surface to the rear surface of the box body 50 along the length direction. Further, the butterfly rod accommodating portion 51 of the box body 50 is formed so that the cross section orthogonal to the length direction exhibits a substantially rectangular shape.
  • the inner wall surface forming the butterfly rod accommodating portion 51 includes an upper wall portion and a lower wall portion arranged to face the upper and lower surfaces of the butterfly rod 30 housed in the butterfly rod accommodating portion 51, and the butterfly rod main body.
  • the portion 31 has a right side edge portion (first side edge portion) 31a and a right facing side wall portion 51a and a left facing side wall portion 51b arranged to face the left side edge portion (second side edge portion) 31b.
  • the right-opposing side wall portion 51a of the box body 50 is the butterfly rod 30 in a plan view (FIG. 1) of the opening / detaching fitting 20 in a state where the butterfly rod 30 is housed in a predetermined storage position of the box body 50. It is arranged at a position overlapping the virtual reference line 39 described above.
  • the right facing side wall portion 51a of the box body 50 is provided with an engaging recess 52 into which the engaging convex portion 34 of the butterfly rod 30 is inserted.
  • the engaging recess 52 of the box body 50 is formed in a groove shape recessed in the first width direction from the wall surface of the right facing side wall portion 51a of the box body 50. Further, the engaging recess 52 is formed linearly along the length direction from the position corresponding to the engaging convex portion 34 of the butterfly rod 30 toward the rear.
  • the width dimension from the wall surface of the right facing side wall portion 51a of the box body 50 to the bottom surface of the concave groove-shaped engaging recess 52 (that is, the depth of the engaging recess 52) is the engaging convex portion 34.
  • the size is set to be the same as the maximum width dimension W1 from the virtual reference line 39, or slightly larger than the maximum width dimension thereof.
  • the opening / closing fitting 20 As described above, for example, from the state where the left and right first fastener stringers 10a and the second fastener stringer 10b are separated, the opening / closing fitting 20 When the wing bar 30 is housed in the box body 50 and the element rows 12 are engaged with each other, the same operation as in the case of the conventional general opening / closing fitting tool is performed.
  • a slider (not shown) is moved and held to the rear end position where it abuts on the box body 50 of the second fastener stringer 10b.
  • the box bar 40 is inserted into the element guide path of the slider, so that the stopped state of the slider is stably maintained.
  • the butterfly rod 30 of the first fastener stringer 10a is inserted from the shoulder opening of the slider toward the butterfly rod accommodating portion 51 of the box body 50 via the element guide path.
  • the right side edge portion 31a and the left side edge portion 31b of the butterfly rod main body 31 each have a shape constricted as described above and a shape in which the rear end portion is curved, and the engaging protrusion of the butterfly rod 30 is formed.
  • the butterfly rod 30 is made difficult to be caught by the slider, the box rod 40, and the box body 50, and the butterfly rod accommodating portion 51 of the box body 50 is prevented from being caught. Can be inserted smoothly.
  • the butterfly rod 30 when the butterfly rod 30 is inserted into the butterfly rod accommodating portion 51 of the box body 50, the butterfly rod 30 is brought into contact with the stopper portion 42 of the box rod 40 by the extension portion 32 of the butterfly rod 30. It is positioned at a predetermined accommodation position with respect to the 40 and the box body 50, and the wing bar 30 is held in a posture facing the box bar 40.
  • the element insertion portion 33 of the wing bar 30 can be engaged with the first element 13a of the second fastener stringer 10b, and FIG. As shown in the above, the left and right element rows 12 can be meshed in order from the rear end portion.
  • the slider when the first fastener stringer 10a and the second fastener stringer 10b are separated from each other from the state where the left and right element rows 12 are meshed with each other, the slider is brought into contact with the box body 50. After sliding to the position, the wing rod 30 may be pulled out from the wing rod accommodating portion 51 of the box body 50 via the element guide path of the slider.
  • the posture of the butterfly bar 30 is slightly tilted by the slider coming into contact with the butterfly bar 30, whereby the engaging convex portion 34 of the butterfly bar 30 is brought into contact with the box body. It comes out from the engaging recess 52 of 50. Therefore, the butterfly rod 30 can be easily pulled out from the box body 50.
  • the wing rod 30 rotates about the portion where the engaging convex portion 34 is hooked on the engaging concave portion 52, whereby the extending portion 32 of the wing rod 30 is a stopper of the box rod 40 in the width direction. It moves to the right side of the part 42. After that, while maintaining the state in which the engaging convex portion 34 is engaged with the engaging concave portion 52, as shown in FIG. 4, the right edge portion 31a of the butterfly rod main body portion 31 is changed to the right facing side wall portion 51a of the box body 50. Can be brought into contact with the front end portion of the.
  • the opening / detaching fitting 20 has a rotation angle (rotation range) in which the butterfly rod 30 rotates as described above, such that the rotation angle (rotation range) is 3 ° or more and 20 ° or less, preferably 5 ° or more and 15 ° or less. It is formed.
  • the rotation angle of the butterfly rod 30 is an angle at which the butterfly rod 30 rotates from a predetermined accommodating position before receiving a lateral pulling force to a position where the butterfly rod 30 comes into contact with the front end portion of the right facing side wall portion 51a of the box body 50. To tell.
  • the rotation angle of the wing bar 30 As described above, a larger lateral pulling strength can be obtained, and it is possible to prevent the opening / closing fitting 20 from becoming large.
  • the lateral pulling force applied to the slide fastener 1 is applied to the portion of the butterfly rod 30 where the element insertion portion 33 of the butterfly rod 30 is engaged with the first element 13a. Dispersed in three places: a portion where the engaging convex portion 34 is engaged with the engaging concave portion 52, and a portion where the right edge portion 31a of the butterfly rod main body 31 is in contact with the right facing side wall portion 51a of the box body 50. I can accept it. Therefore, the lateral pulling strength of the slide fastener 1 can be greatly improved.
  • the slide fastener 1 of the present embodiment in which the first and second fastener stringers 10a and 10b are excellent in flexibility, even if a lateral pulling force is applied, the left and right element rows are arranged in the vicinity of the opening / detaching fitting insert 20. It is possible to effectively suppress the partial separation of the elements 12 and stably maintain the meshed state of the element train 12. Further, even if the first element 13a and the element insertion portion 33 are worn due to repeated use of the slide fastener 1, it is possible to suppress a decrease in the lateral pulling strength of the slide fastener 1.

Landscapes

  • Slide Fasteners (AREA)

Abstract

La présente invention concerne une fermeture à glissière (1) pourvue d'un dispositif de retenue séparable (20), dans lequel : une broche d'insertion (30) de l'élément de retenue séparable (20) comprend une partie corps principal de broche d'insertion (31), une partie d'insertion d'élément (33), et une partie en saillie de mise en prise (34) qui fait saillie dans une première direction de largeur à partir d'une partie d'extrémité de la partie corps principal de broche d'insertion (31) ; une première partie de bord latéral (31a) de la partie corps principal de broche d'insertion (31) a une forme rétrécie dans laquelle une partie centrale de celle-ci dans la direction de la longueur est évidée vers un second côté de direction de largeur ; et une partie de paroi interne d'une partie de réception de broche d'insertion (51) d'un corps de boîte (50) comprend une partie de paroi latérale opposée (51a) qui fait face à la partie de corps principal de broche d'insertion (31), et une partie évidée de mise en prise (52) disposée dans la partie de paroi latérale opposée (51a) et dans laquelle la partie en saillie de mise en prise (34) est insérée. Par conséquent, la résistance à la traction latérale de la fermeture à glissière (1) peut être améliorée, et des rangées d'éléments gauche et droit peuvent être rendues moins susceptibles de se désengrener.
PCT/JP2019/043961 2019-11-08 2019-11-08 Fermeture à glissière WO2021090494A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2019/043961 WO2021090494A1 (fr) 2019-11-08 2019-11-08 Fermeture à glissière
TW109113358A TWI727758B (zh) 2019-11-08 2020-04-21 拉鏈

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/043961 WO2021090494A1 (fr) 2019-11-08 2019-11-08 Fermeture à glissière

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH282353A (de) * 1948-10-02 1952-04-30 Martin Dr Winterhalter Trennbarer Reissverschluss, Verfahren zur Herstellung desselben und Giessform zur Durchführung des Verfahrens.
JP2006000468A (ja) * 2004-06-18 2006-01-05 Ykk Corp スライドファスナー用開き具
WO2011135706A1 (fr) * 2010-04-28 2011-11-03 Ykk株式会社 Fermeture à glissière cachée

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120167354A1 (en) * 2009-09-11 2012-07-05 Ykk Corporation Reverse Opening Slide Fastener
DE112017007677B4 (de) * 2017-06-22 2023-05-04 Ykk Corporation Reißverschluss

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH282353A (de) * 1948-10-02 1952-04-30 Martin Dr Winterhalter Trennbarer Reissverschluss, Verfahren zur Herstellung desselben und Giessform zur Durchführung des Verfahrens.
JP2006000468A (ja) * 2004-06-18 2006-01-05 Ykk Corp スライドファスナー用開き具
WO2011135706A1 (fr) * 2010-04-28 2011-11-03 Ykk株式会社 Fermeture à glissière cachée

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TW202118417A (zh) 2021-05-16

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