WO2023243092A1 - Fermeture à glissière à ouverture inverse - Google Patents

Fermeture à glissière à ouverture inverse Download PDF

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Publication number
WO2023243092A1
WO2023243092A1 PCT/JP2022/024385 JP2022024385W WO2023243092A1 WO 2023243092 A1 WO2023243092 A1 WO 2023243092A1 JP 2022024385 W JP2022024385 W JP 2022024385W WO 2023243092 A1 WO2023243092 A1 WO 2023243092A1
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WO
WIPO (PCT)
Prior art keywords
insert pin
slider
pair
reverse
box
Prior art date
Application number
PCT/JP2022/024385
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English (en)
Japanese (ja)
Inventor
久生 數田
祐介 細川
奈津子 才津
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/JP2022/024385 priority Critical patent/WO2023243092A1/fr
Priority to TW111134871A priority patent/TW202400041A/zh
Publication of WO2023243092A1 publication Critical patent/WO2023243092A1/fr

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    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—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 has a pair of stringers that extend back and forth and face each other so as to be openable and closable from side to side, and that are movable back and forth along opposing side edges of the pair of stringers, and that the directions in which the pair of stringers are opened are opposite to each other.
  • This invention relates to a reverse-opening slide fastener comprising a pair of sliders.
  • Patent Documents 1 and 2 As an example of a conventional reverse-opening slide fastener, one is known that includes a pair of fastener stringers, and an opening slider and a reverse-opening slider that open and close the pair of fastener stringers (Patent Documents 1 and 2).
  • the reverse opening slide fastener of Patent Document 1 is as follows.
  • the fastener stringer on the box bar side includes a coiled fastener element, an interlocking reinforcement, and a box bar in this order along opposite side edges of the fastener tape.
  • the fastener element and the engagement reinforcing body are continuous. In other words, the fastener element and the engagement reinforcing body are integrated.
  • the reverse opening slide fastener of Patent Document 2 is as follows.
  • the fastener stringer on the box bar side has a coiled linear fastener element and a box bar arranged in succession along opposite side edges of the fastener tape.
  • the linear fastener element and the box bar are integrated.
  • the end of the continuous fastener element on the box pin side that is, the end that is continuous with the box pin, is located closer to the reverse opening slider side than the guide post of the normal opening slider. are doing. That is, when the insert pin is inserted into and removed from the pair of fastener sliders, the end of the linear fastener element on the box rod side is deeply inserted into the inside of the normal opening slider.
  • the fastener stringer will be referred to as a stringer
  • the fastener element and linear fastener element will be referred to as a coil element
  • the fastener tape will be referred to as a tape
  • the reverse opening slide fastener will be referred to as a stringer.
  • the slider for opening will be referred to as a normal slider
  • the slider for opening in reverse will be referred to as a reverse slider.
  • the opposing side edges of the stringer on the box bar side are other than the opposing side edges.
  • the part made only of tape has higher rigidity, and unless some kind of force is applied, it will approximate a straight line.
  • the coil element is a plurality of continuous elements.
  • the coil elements are fixed along the opposite side edges of the fastener tape, so compared to a stringer where multiple elements are not continuous, the coil elements are fixed along the opposite side edges of the fastener tape. The shape tends to be more similar to a straight line.
  • the pair of coil elements has a linearly engaged portion and a left and right branched portion.
  • the parts of the pair of coil elements that mesh in a straight line extend in a straight line toward the reverse slider relative to the normal slider, and the parts of the pair of coil elements that branch to the left and right extend from the normal slider as the center. far left and right.
  • the pair of coil elements is deformed inside the normal slider from a state in which they extend in a straight line in parallel to a state in which they branch to the left and right.
  • the ideal posture of the normal slider and reverse slider when inserting the insert pin is one in which the normal slider and reverse slider are adjacent to each other in the front and back, and the guide posts of each other are in symmetrical positions in the front and back. .
  • the pair of stringers can be closed simply by moving the normal slider away from the reverse slider.
  • the stringer on the box bar side and the stringer on the butterfly bar side are bent inside the normal slider and branch to the left and right as they move forward with respect to the normal slider. .
  • the coil element tends to be in a straight line due to its rigidity, before inserting the insert pin, the coil element on the box bar side tends to be in a straight line extending forward from the reverse slider, and the normal slider and reverse slider are Even if they are adjacent to each other, the normal slider is likely to be tilted relative to the reverse slider. The greater the inclination, the more difficult it is to insert the insert pin.
  • Patent Document 1 has a structure in which the coil element on the box bar side and the engagement reinforcing body are integrated, and the integrated part and the box bar are separated.
  • the problem is that the butterfly pin is difficult to insert.
  • the present invention was created in consideration of the above circumstances, and its purpose is to make it easier to insert the insert pin into a pair of sliders in a reverse-opening slide fastener.
  • the reverse-opening slide fastener of the present invention includes a pair of stringers that extend back and forth and face each other so as to be openable and closable from side to side, and that are movable back and forth along opposing side edges of the pair of stringers and can be moved to open the pair of stringers. It includes a forward slider whose direction is the forward direction and a reverse slider whose direction is the backward direction.
  • the pair of stringers is composed of a pair of tapes extending front and back and facing left and right, and a plurality of elements arranged in a row front and rear, and a pair of stringers fixed along opposite side edges of the pair of tapes.
  • a pair of element rows that can be engaged and separated in cooperation with each other, and a pair of insert pins and box pins that are separately fixed to the rear ends of the pair of tapes, and a normal slider and a reverse slider.
  • the insert pin is provided with an insert pin and a box pin that can be inserted into and removed from the normal slider and the reverse slider when they are adjacent to each other in the front and back at the rear end of the tape.
  • the pair of element rows includes a continuous element portion in which a plurality of elements are continuous one after the other.
  • the first aspect of the reverse-opening slide fastener of the present invention is that the element row on the box bar side includes, in addition to the continuous element section, an independent element section on the box bar side that can engage and separate from the stringer on the insert pin side.
  • the independent element portion on the box bar side is composed of one or more independent elements fixed to the tape on the box bar side.
  • the independent element at the rear end is housed inside the normal slider in a state where the insert pin can be inserted into and removed from the normal slider and the reverse slider, and the independent element part is located between the continuous element part on the box bar side and the box bar.
  • the continuous element portion on the side of the box bar and each of the box bars are spaced apart from each other in the front and rear.
  • the first aspect of the reverse-opening slide fastener of the present invention does not matter whether the element row on the insert pin side is composed only of continuous element portions on the insert pin side.
  • the element row on the insert pin side includes, in addition to the continuous element portion on the insert pin side, an independent element portion on the insert pin side that can be engaged with and separated from the stringer on the box rod side.
  • the independent element portion on the insert pin side is composed of one or more independent elements fixed to the tape on the insert pin side.
  • the independent element at the rear end of the insert pin side is housed inside the normal slider in a state where the insert pin can be inserted into and removed from the normal slider and the reverse slider, and the independent element part on the insert pin side is the continuous element on the insert pin side. and the insert pin, and is arranged with an interval in front and rear relative to the continuous element part on the insert pin side and the insert pin, respectively.
  • the first aspect of the reverse-opening slide fastener of the present invention is, when an independent element on the insert pin side is provided, whether the independent element on the insert pin side can be engaged with and separated from the continuous element portion on the box rod side. No questions asked. However, in order to improve the connection strength when the pair of stringers are closed, it is desirable to do the following. That is, the independent element at the rear end of the insert pin side can be engaged with and separated from the continuous element part on the box rod side and the independent element on the box rod side.
  • the independent element on the box bar side includes a fixing part that is fixed to the tape on the box bar side, and an engaging part that extends from the fixing part toward the tape on the insert pin side and engages with the stringer on the insert pin side, and Regarding dimensions corresponding to the thickness direction, the thickness of the engaging portion is thinner than the thickness of the fixing portion.
  • the structure of the independent element on the box bar side does not matter.
  • the engagement part of the independent element on the box rod side includes a neck extending from the fixing part toward the tape on the insert pin side, and a head extending from the neck toward the tape on the insert pin side and protruding back and forth.
  • An independent element on the rod side is that the fastening part extends in front of the head.
  • the first aspect of the reverse-opening slide fastener of the present invention does not matter how the independent element on the box bar side can be engaged with and separated from the stringer on the insert pin side.
  • the engaging part of the independent element on the box rod side includes a neck extending from the fixing part toward the tape on the insert pin side, and a head extending from the neck toward the tape on the insert pin side and projecting back and forth. The part is to enable engagement and separation with the stringer on the insert pin side.
  • An example of a specific configuration of the continuous element portion and a specific configuration of the independent element on the box bar side is as follows. That is, the independent element on the box bar side is injection molded into a tape, and the continuous element part is a coiled or zigzag monofilament bent in three dimensions.
  • the second aspect of the reverse-opening slide fastener of the present invention is such that the normal slider is provided with a guide post that guides the pair of continuous element parts in a separated state to the left and right, and the insert pin is moved from the normal slider to the right slider.
  • the rear end of the continuous element portion on the box bar side is located in front of the rear end of the guide column.
  • the reverse opening slide fastener of the present invention is provided with an independent element part on the box bar side, the part between the independent element part on the box bar side and the box bar, the continuous element part on the box bar side and the box bar.
  • the part between the independent element on the side becomes flexible due to the front and rear spacing, and becomes a part that is easily deformed (hereinafter referred to as the "easily deformable part"), and the opposite side of the stringer on the box bar side Increased flexibility at the edges. Therefore, when inserting the insert pin into the normal slider and the reverse slider, the independent element part and the continuous element part on the box rod side are tilted separately with respect to the straight line direction of the box rod, and the normal slider is The slope becomes smaller.
  • the normal slider and the reverse slider when the normal slider and the reverse slider are adjacent to each other front and back at the rear end of the pair of tapes, the normal slider and the reverse slider tend to take an ideal vertically symmetrical posture. This makes it easier to insert the butterfly pin.
  • the insert pin can be inserted into the normal slider and the reverse slider for the same reason as the one with the independent element part on the box rod side.
  • the independent element part and the continuous element part on the insert pin side are tilted separately with respect to the linear direction of the insert stick, and the normal slider and the reverse slider are adjacent to each other front and back at the rear end of the pair of tapes. When they fit together, it becomes easier to take an ideal front-back symmetrical posture, making it easier to insert the insert pin.
  • the independent element on the insert pin side can be engaged with and separated from the stringer on the box rod side, so that the connection strength when the pair of stringers is closed is improved.
  • the rear end of the continuous element on the box rod side is located in front of the rear end of the guide column of the normal slider. If there is, for example, the rear end of the continuous element part on the box bar side is located at the same level as the rear end of the guide column, or the rear end of the continuous element part on the box bar side is located in the normal slider. Even if the continuous element part on the box bar side does not deform much due to shallow penetration, the normal slider and reverse slider are adjacent to each other at the rear end of the pair of tapes, resulting in an ideal front-back symmetrical posture. This makes it easier to insert the butterfly pin into the pair of sliders.
  • FIG. 3 is a perspective view showing the independent element on the insert pin side and the independent element on the box rod side as seen from the rear side and from above.
  • FIG. 3 is a perspective view showing the independent element on the insert pin side and the independent element on the box rod side as seen from the rear side and from below.
  • Figures (A) to (D) are a top view, a front view, a left side view, and a bottom view showing the independent element on the box bar side.
  • FIG. 3 is a sectional view showing a state in which the insert pin is deeply inserted into the normal slider and the reverse slider.
  • FIG. 3 is a sectional view showing a state in which the insert pin has begun to be inserted into the normal slider and the reverse slider.
  • the reverse-opening slide fastener 1 includes a pair of stringers 2 that extend back and forth and are openable and closable from side to side.
  • the slider 3 includes a forward slider 3 which is movable back and forth and which opens the pair of stringers 2 in the forward direction, and a reverse slider 4 which opens the pair of stringers 2 in the backward direction.
  • the "opposing side edges” refer to the right edge in the case of the left stringer 2, and the left edge in the case of the right stringer 2.
  • the pair of stringers 2 basically consists of a pair of tapes 5 that extend back and forth and face each other left and right, and are fixed along the opposite side edges of the pair of tapes 5 and work together to engage and A pair of separable element rows 6, an insert pin 7 and a box pin 8 separately fixed to the rear ends of the pair of tapes 5, and a pair of stops separately fixed to the front ends of the pair of tapes 5.
  • the direction is determined as follows with the slide fastener 1 placed on a flat surface.
  • the "left-right direction” refers to the direction in which the pair of stringers 2 in the closed state face each other.
  • Left direction refers to the left direction in FIG.
  • the “rightward direction” in FIG. 1 is the rightward direction.
  • the stringer 2 on the insert pin side it may be referred to as the “box rod side” or “anti-box rod side” in the left-right direction.
  • the left stringer 2 is provided with the butterfly pin 7 and the right stringer 2 is provided with the box rod 8, so the “box rod side” refers to the right side, and the “anti-box rod side” refers to the left side. It is.
  • the stringer 2 when describing the stringer 2 on the box rod side, the stringer 2 may be referred to as "the insert rod side” or “the opposite insert rod side” in the left-right direction.
  • the insert pin side refers to the left side
  • the opposite insert pin side refers to the right side.
  • the "front-back direction” is a direction in which the pair of stringers 2 extend when viewed from above, and is a straight line direction in FIG. 1, and is a direction perpendicular to the left-right direction.
  • the "front direction” in FIG. 1 is the upward direction.
  • the “backward direction” in FIG. 1 is the downward direction.
  • the "vertical direction” is a direction perpendicular to the front-rear direction and the left-right direction.
  • the “upward direction” in FIG. 1 is a direction facing toward the front in a direction perpendicular to the paper surface.
  • the “downward direction” is a direction facing toward the back of the paper in a direction perpendicular to the paper surface.
  • the tape 5 has a longitudinally long strip shape, and its thickness direction is the vertical direction. Further, the tape 5 is softer than the pair of element rows 6, the insert pin 7, and the box pin 8. Therefore, the tape 5 is deformable in areas other than the opposing side edges (portions where the pair of element rows 6, the insert pin 7, and the box pin 8 are not fixed).
  • the pair of stops 9 determine the front limit position of the movement range of the normal slider 3 when the normal slider 3 collides with it.
  • the front limit position of the movement range of the reverse slider 4 is determined when the reverse slider 4 collides with the normal slider 3.
  • the box bar 8 has a box bar main body part 81 extending in the front-rear direction, and extends in a direction opposite to the butterfly pin at the rear end of the box bar main body part 81, and prevents the reverse slider 4 from coming off.
  • a retaining portion 82 is provided.
  • the box pin 8 is fixed to the opposing side edges of the tape 5 in such a manner that it covers both upper and lower surfaces and the left surface (the surface on the insert pin side).
  • the box bar 8 determines the rear limit position of the movement range of the reverse slider 4 when the reverse slider 4 collides with the retaining portion 82 .
  • the rear limit position of the movement range of the normal slider 3 is determined when the normal slider 3 collides with the reverse slider 4.
  • the insert pin 7 includes an insert pin main body portion 71 that extends in the front-rear direction. Further, the insert pin 7 is fixed to the opposing side edges of the tape 5 in such a manner that it covers both upper and lower surfaces and the right side (the surface on the box pin side). The insert pin 7 can be inserted into and removed from the normal slider 3 and the reverse slider 4 when the normal slider 3 and the reverse slider 4 are front and back adjacent to each other at the rear end portions of the pair of tapes 5. In this case, the reverse slider 4 is placed at the rear limit position.
  • the insert pin 7 and the box pin 8 each include a pair of positioning parts 73 and 83 for positioning each other.
  • the positioning part 83 of the box pin 8 is a protruding piece 83 that protrudes from the insert pin side surface of the box pin main body part 81
  • the positioning part 73 of the insert pin 7 is a protrusion piece 83 protruding from the box pin side of the insert pin main body part 71.
  • This is an accommodation recess 73 that is recessed in the surface and accommodates the protruding piece 83.
  • the normal slider 3 is movable back and forth along the opposing side edges of the pair of stringers 2.
  • the normal slider 3 includes a slider body 31 that guides the pair of element rows 6 so as to engage and separate them, and a pull tab 32 that is connected to the slider body 31.
  • the slider body 31 has, as its internal space, an element passage 33 that penetrates in the front-rear direction and passes through the pair of element rows 6, and communicates the element passage 33 with the outside of the slider body 31 from side to side. and a pair of tape grooves 34 through which the pair of tapes 5 are passed.
  • the element passage 33 includes a meshing path 33a through which the pair of element rows 6 are meshed, and a pair of branches that branch leftward and rightward from the meshing path 33a toward the front and through which the pair of element rows 6 are passed in a state separated from left and right. 33b.
  • the slider body 31 is arranged to extend vertically between the pair of branch paths 33b, and faces a guide column 35 that guides the pair of element rows 6 in a separated state in the left and right directions. It includes an upper wing plate 36 (see FIG. 1) and a lower wing plate 37 that partition the upper and lower sides of the element passage 33, and left and right side plates 38 that partition the left and right sides of the element passage 33 on the left and right sides of the guide column 35.
  • a tape groove 34 is formed in the left and right side plates 38 so as to penetrate in the front-rear direction.
  • the portions of the left and right side plates 38 that are vertically divided by the tape grooves 34 are referred to as flanges 38a.
  • the flanges 38a extend from the left and right edges of the upper wing plate 36 and the lower wing plate 37 in a direction toward each other.
  • the slider body 31 includes a raised portion 35a that protrudes from the upper wing plate 36 and the lower wing plate 37 in a direction toward each other at the upper and lower ends of the guide column 35.
  • the raised portions 35 a partially narrow the vertical distance between the element passages 31 and extend along the left and right sides of the guide columns 35 and to the rear of the guide columns 35 .
  • the slider body 31 includes a handle attachment portion 39 that protrudes from the upper surface side of the upper wing plate 36.
  • a handle 32 is connected to the handle attachment portion 39 .
  • the reverse slider 4 has a structure that is symmetrical to the front and rear of the normal slider 3. Therefore, the configuration of the reverse slider 4 will be explained in a simplified manner.
  • the reverse slider 4 includes a slider body 41 and a handle 42.
  • the slider body 41 includes an element passage 43 and a pair of tape grooves 44 as its internal space.
  • the element passage 43 includes a meshing passage 43a and a pair of branch passages 43b.
  • the slider body 41 includes a guide column 45, an upper wing plate 46, a lower wing plate 47, left and right side plates 48, a raised portion 45a, and a handle attachment portion 49.
  • Tape grooves 44 are formed in the left and right side plates 48.
  • the portions of the left and right side plates 48 that are vertically divided by the tape groove 44 are referred to as flanges 48a.
  • the pair of element rows 6 are composed of a plurality of elements arranged in a line in the front-rear direction. As shown in FIG. 2, each of the pair of element rows 6 includes a continuous element portion 61 in which a plurality of elements 6a are continuous in the front-rear direction.
  • the continuous element portion 61 is a single synthetic resin monofilament bent in three-dimensional directions (up and down, left and right, front and rear).
  • the monofilament is made up of a series of elements 6a that mesh with opposing monofilaments. Therefore, the continuous element portion 61 is composed of a plurality of elements 6a that are continuous in the front-rear direction.
  • the element 6a of the continuous element section 61 can be engaged with and separated from the element 6a of another continuous element section 61 that faces it.
  • Monofilaments are coiled or zigzag shaped. Monofilaments are sometimes called coil elements or zigzag elements, depending on their bent shape. Incidentally, as shown in FIG.
  • the monofilament is a coil element in this embodiment, and is wound around a core cord 5a that extends in a straight line in the front-rear direction.
  • the element 6a of the coil element has an upper leg portion 61a and a lower leg portion 61b that face each other in the vertical direction, and a continuous element portion 61 that has the upper leg portion 61a and the lower leg portion 61b facing each other among the left and right end portions.
  • An engaging head 61c that joins at the side end and meshes with the element 6a of the opposing continuous element portion 61, and one element 6a in the front and rear at the end opposite to the engaging head 61c among the left and right ends.
  • An upper joining part 61d joins the upper leg part 61a to the lower leg part 61b of the element, and the lower leg part 61a is connected to the upper leg part 61a of the other element 6a in the front and back at the end on the opposite side from the engaging head 61c among the left and right ends. It includes a lower joint part 61d that joins the part 61b.
  • the engaging head 61c extends vertically to join the upper leg 61a and the lower leg 61b. Further, the intermediate portion of the engaging head 61c in the vertical direction projects forward and backward in order to be inserted between the upper leg portion 61a and the lower leg portion 61b of the element 6a of the opposing continuous element portion 61 for engagement. Note that the continuous element portion 61 is fixed to the opposing side edges of the tape 5 by threads (not shown).
  • the insert pin side element row 6 includes an insert pin side independent element part 10 between the continuous element part 61 and the insert pin 7, which is independent of both.
  • the independent element section 10 on the insert pin side is composed of an independent element 11 that is one element 11 fixed to the side edge of the tape 5 on the insert pin side.
  • the continuous element part 61 is composed of elements 6a that are continuous in the front-rear direction
  • the independent element part 10 on the insert pin side is composed of one element 11
  • the element row 6 on the insert pin side is composed of a plurality of elements arranged in a row in the front-rear direction. It is composed of elements (a plurality of elements 6a and one element 11). Since the independent element section 10 on the insert pin side is composed of one independent element 11, the independent element 11 is the independent element 11 at the rear end of the independent element section 10 on the insert pin side.
  • the element row 6 on the box bar side also includes an independent element section 20 on the box bar side, which is independent between the continuous element section 61 on the box bar side and the box bar 8.
  • the independent element section 20 on the box bar side is also composed of an independent element 21 that is one element 21 fixed to the tape 5 on the box bar side.
  • the continuous element section 61 is composed of elements 6a that are continuous in the front-rear direction
  • the independent element section 20 on the box bar side is composed of one element 21
  • the element row 6 on the box bar side is composed of a plurality of elements 6a arranged in a row in the front-rear direction. It is composed of elements (a plurality of elements 6a and one element 21). Since the independent element section 20 on the box bar side is composed of one independent element 21, the independent element 21 is the independent element 21 at the rear end of the independent element section 20 on the box bar side.
  • the independent element 21 on the box pin side can be engaged with and separated from the stringer 2 on the insert pin side. More specifically, in this embodiment, the independent element 21 on the insert pin side and the insert pin 7 can be engaged with and separated from each other.
  • the independent element 21 on the box bar side is located between the continuous element part 61 on the box bar side and the box bar 8, and is spaced in the front-rear direction with respect to the continuous element part 61 on the box bar side and the box bar 8, respectively. It is placed in an open position.
  • the opposite side edges of the stringer 2 on the box bar side tend to be in a straight line because the continuous element section 61, independent element 21, and box bar 8 are fixed to the tape 5, but the front and rear edges of the independent element 21
  • the portions at the intervals become easily deformable portions.
  • the independent element 11 on the insert pin side can be engaged with and separated from the stringer 2 on the box rod side. More specifically, in this embodiment, the independent element 11 on the box rod side can be engaged with and separated from the continuous element part 61 on the box rod side and the independent element 21 on the box rod side. It is possible. Furthermore, the independent element 11 on the insert pin side is located between the continuous element portion 61 on the insert pin side and the insert pin 7, and is spaced apart from each other in the front and rear direction with respect to the continuous element portion 61 on the insert pin side and the insert pin 7, respectively. It is placed in an open position.
  • the independent element 11 on the insert pin side and the independent element 21 on the box rod side are both made of synthetic resin that is directly injection molded onto the tape 5 on the corresponding side, and both are larger than one element 6a of the continuous element section 61. It is a long lump in the front-back direction.
  • the configuration of the independent element 11 on the insert pin side and the independent element 21 on the box rod side will be described in detail below.
  • the independent element 11 on the insert pin side includes a fixing part 12 that is fixed to the tape 5 on the insert pin side, and an engaging part 13 that extends from the fixing part 12 toward the tape 5 on the box bar side and meshes with the stringer 2 on the box bar side. Equipped with.
  • the fixing portion 12 is fixed to the upper and lower surfaces of the tape 5 while sandwiching the opposing side edges of the tape 5 from above and below. More specifically, the core string 5a passed through the inside of the coil element as the continuous element portion 61 extends rearward with respect to the coil element and is fixed to the opposing side edges of the tape 5 with threads (not shown). has been done. The opposing side edges of the tape 5 and the core string 5a overlapping thereon pass through the fixing portion 12 in the front-back direction and are housed in the insert pin 7. Further, in FIGS. 3, 4, and 6, for convenience, the tape 5 and the core string 5a are omitted from the fixing portion 12, and instead, the portion where the tape 5 and the core string 5a are arranged is shown as a groove 12s.
  • the groove 12s is formed in the surface of the fixing portion 12 on the side opposite to the box rod so as to penetrate in the front-rear direction. Regarding the vertical dimension, the groove 12s is made wider on the side of the box bar than on the side opposite to the box bar, in order to prevent the independent element from coming off the tape 5, as is well known. Note that the fixing portion 12 has a substantially rectangular shape when viewed from above and below.
  • the upper surface 12a of the fixing part 12 on the box bar side is formed into a slope that becomes lower toward the box bar side.
  • the upper surface 12c on the side opposite to the box rod is formed into a slope that becomes lower toward the side opposite to the box rod.
  • the upper surface 12b of the upper surface of the fixing part 12 in the middle part in the left-right direction is the highest on the upper surface of the fixing part 12, and is a plane perpendicular to the vertical direction.
  • the lower surface 12d on the box bar side is the lowest on the lower surface of the fixing part 12, and is a plane perpendicular to the vertical direction.
  • a lower surface 12e of the fixed portion 12 on the side opposite to the box rod is formed into a slope that becomes higher toward the side opposite to the box rod.
  • the vertical dimension between the lowest part and the highest part of the fixed part 12 is the thickness 12t of the fixed part 12.
  • the engaging portion 13 includes a neck portion 14 extending from the fixed portion 12 toward the tape 5 on the box bar side, a head portion 15 extending from the neck portion 14 toward the tape 5 on the box bar side and projecting back and forth, and a rear surface of the neck portion 14. and a shoulder portion 16 extending rearwardly from the top.
  • the neck portion 14 extends from the intermediate portion of the fixing portion 12 in the front-rear direction toward the tape 5 on the box bar side (the box bar side).
  • the upper surface 14a of the neck portion 14 is lower than the highest portion of the upper surface of the fixing portion 12 in a stepped manner, and is a flat plane perpendicular to the vertical direction.
  • a lower surface 14d on the fixed portion side is a plane that is orthogonal to the vertical direction and has the same height as the lower surface of the fixed portion 12 on the box bar side.
  • the lower surface 14e on the box bar side is a slope that becomes higher toward the box bar side.
  • the vertical dimension between the lowest part and the highest part of the neck part 14 is the thickness 14t of the neck part 14.
  • the thickness 14t of the neck portion 14 is thinner than the thickness 12t of the fixed portion 12, and in this embodiment, it is also the thickest portion of the engaging portion 13, that is, the thickness 13t of the engaging portion 13.
  • the head 15 includes a head main body 151 extending from the neck 14 toward the box bar side, and a head main body 151 that projects forward from the neck 14 from the head main body 151 and meshes with an element 6a at the rear end of the continuous element section 61 on the box bar side. It includes a front convex portion 152 and a rear convex portion 153 that protrudes from the head body 151 to the rear of the neck portion 14 and engages with the independent element 21 on the box bar side.
  • the upper surface 15a of the head 15 is lower than the highest part of the upper surface of the fixed part 12 in a stepped manner, and the lower surface 15d of the head 15 is lower than the lowest part of the lower surface of the fixed part 12 in a stepped manner. Therefore, the thickness 15t of the head 15 is thinner than the thickness 12t of the fixed part 12.
  • a front upper surface 15b of the upper surface 15a of the head 15 is a slope that becomes lower toward the front.
  • the lower surface 15d of the head 15 has a lower surface 15e at the center in the front-rear direction on the lower surface on the box bar side as a slope that becomes higher as it goes toward the box bar side, and a lower surface 15f at the front part on the lower surface on the box bar side in the front-rear direction
  • the lower surface 15h of the lower surface 15h is a plane that is stepped higher than the lower surface 15e (slope) of the central portion in the front-rear direction, has the same height, and is perpendicular to the vertical direction.
  • the lower surface 15f of the front portion in the front-rear direction is the lower surface of the front convex portion 152.
  • the lower surface 15h of the rear part in the front-back direction is a part of the lower surface of the rear convex part 153 and a part of the lower surface of the head main body 151 (the tip on the box bar side), and the front end 15k of the lower surface 15h (the front side ) is a state of inclination toward the front as it goes toward the box bar side.
  • the front convex portion 152, the neck portion 14, and the fixing portion 12 form a front recess portion 17 that covers the left and right sides of the front side of the neck portion 14.
  • the front recess 17 is recessed in the front surface of the independent element 11 on the insert pin side.
  • the front recess 17 opens forward and penetrates in the vertical direction.
  • the rear end element 6a of the continuous element portion 61 on the box bar side meshes with the front concave portion 17 and the front convex portion 152. More specifically, the front recess 17 accommodates the rear part of the engaging head 61c of the element 6a at the rear end of the continuous element part 61 on the box bar side.
  • the front convex portion 152 is inserted between the upper leg portion 61a and the lower leg portion 61b of the element 6a at the rear end of the continuous element portion 61 on the box bar side.
  • the rear convex portion 153, the neck portion 14, and the fixing portion 12 form a rear recessed portion 18 that covers the left and right sides of the rear side of the neck portion 14.
  • the rear recessed portion 18 is recessed in the rear surface of the independent element 11 on the insert pin side. Further, the rear recessed portion 18 is open rearward and upward, and the lower portion is closed by the shoulder portion 16.
  • the shoulder portion 16 protrudes from the fixed portion 12, the neck portion 14, and the head portion 15 on the rear side with respect to the neck portion 14 in the front-rear direction. Further, the shoulder portion 16 protrudes from the lower portions of the fixing portion 12, the neck portion 14, and the head portion 15 in the vertical direction.
  • the upper surface 16a of the shoulder portion 16 is a plane perpendicular to the vertical direction, and is at the same height as the front lower surface 15f and the rear lower surface 15h of the lower surface 15 of the head 15. Further, the rear end 16b of the shoulder portion 16 is inclined toward the front as it goes toward the box bar side. Note that the end 16c of the shoulder portion 16 on the box bar side in the left-right direction is located on the surface of the rear convex portion 153 on the side opposite to the box bar.
  • the independent element 21 on the box bar side includes a fixing part 22 that is fixed to the tape 5 on the box bar side, and a stringer 2 that extends from the fixing part 22 toward the tape 5 on the insert pin side. and a meshing part 23 that meshes with the shaft.
  • the fixing portion 22 is fixed to the upper and lower surfaces of the tape 5 while sandwiching the opposing side edges of the tape 5 from above and below. Note that the opposing side edges of the tape 5 and the core cord 5a overlapping thereon pass through the fixing portion 22 in the front-rear direction and are housed within the box bar 8. 3 to 5, for convenience, the tape 5 is omitted from the fixing portion 22, and the portion where the tape 5 is placed instead of the tape 5 is shown as a groove 22s.
  • the groove 22s is formed in the surface of the fixing portion 22 on the side opposite to the insert pin so as to penetrate in the front-rear direction. Regarding the vertical dimension, the groove 22s is wider on the insert pin side than on the side opposite to the insert pin.
  • an upper surface 22a of the upper surface of the fixing part 22 on the insert pin side is formed into a slope that becomes lower toward the insert pin side.
  • the upper surface 22c on the side opposite to the insert pin is a slope that becomes lower as it goes toward the side opposite to the insert pin.
  • the upper surface 22b of the upper surface of the fixing part 22 in the middle part in the left-right direction is the highest among the upper surfaces of the fixing part 22, and is a plane perpendicular to the vertical direction.
  • the lower surface 22d of the fixing portion 22 is a plane perpendicular to the vertical direction.
  • the vertical dimension between the lowest part and the highest part of the fixed part 22 is the thickness 22t of the fixed part 22.
  • a corner 22h between the right surface of the fixing portion 22, which is the surface opposite to the insert pin, and the rear surface is formed as a slope that faces forward as it goes toward the opposite side of the insert pin.
  • This corner 22h faces the front surface of the box bar 8 as shown in FIG. The distance between the corner portion 22h and the front surface of the box bar 8 becomes wider toward the side opposite to the butterfly bar.
  • the engaging portion 23 includes a neck portion 24 extending from the fixed portion 22 toward the tape 5 on the insert pin side, a head portion 25 extending from the neck portion 24 toward the tape 5 on the insert pin side and projecting back and forth, and a head portion 25 extending from the neck portion 24 toward the tape 5 on the insert pin side, and a head portion 25 extending from the neck portion 24 toward the tape 5 on the insert pin side. It includes a pair of shoulders 26 and 27 extending forward and backward from the surface.
  • the neck portion 24 extends from the rear of the fixing portion 22 toward the tape 5 on the insert pin side (the insert pin side).
  • the upper surface 24a of the neck portion 24 is a flat surface that is stepwise lower than the highest portion (plane) of the upper surface of the fixing portion 22 and perpendicular to the vertical direction.
  • the lower surface 24d of the neck portion 24 is a slope that becomes lower toward the insert pin side.
  • the vertical dimension between the lowest part and the highest part of the neck part 24 is the thickness 24t of the neck part 24.
  • the thickness 24t of the neck portion 24 is thinner than the thickness 22t of the fixed portion 22, and in this embodiment, it is also the thickest portion of the engaging portion 23, that is, the thickness 23t of the engaging portion 23.
  • the head 25 includes a head main body 251 extending from the neck 24 toward the insert pin, and a front convex portion that projects from the head main body 251 forward than the neck 24 and is accommodated in the rear recess 18 of the independent element 11 on the insert pin side. portion 252 and a rear convex portion 253 that protrudes from the head body 251 to the rear of the neck portion 24 and engages with the insert pin 7.
  • the upper surface 25a of the head 25 is step-like lower than the highest part of the upper surface of the fixing part 22, and the lower surface 25d of the head 25 is step-like higher than the lowest part of the lower surface of the fixing part. Further, the thickness 25t of the head 25 is thinner than the thickness 24t of the neck portion 24 and thinner than the thickness 22t of the fixed portion 22 in this embodiment.
  • the upper surface 25b on the neck side is a slope that becomes lower toward the insert pin side.
  • the lower surface 25d of the head 25 has a lower surface 25e at the center in the front-rear direction on the lower surface on the insert pin side as a slope that becomes higher as it goes toward the insert rod side, and a lower surface 25f at the front in the front-rear direction on the lower surface on the insert pin side. It is a plane that is higher than the lower surface 25e (slope) at the center of the direction and perpendicular to the vertical direction.
  • the lower surface 25f of the front part in the front-back direction is the lower surface of the front convex part 253 and a part of the lower surface of the head main body 251 (the tip on the insert pin side), and the rear end 25k (rear side) of the lower surface 25f. is a state of inclination toward the rear as it goes toward the insert pin side.
  • the distance W between the front end of the head 25 and the front end of the engaging head 61c of the element 6a at the rear end of the continuous element portion 61 on the box bar side is as shown in FIG. It is wider than the dimension P in the front-rear direction in the winding portion).
  • the front convex portion 252, the neck portion 24, and the fixing portion 22 form a front recess portion 28 that covers the left and right sides of the front side of the neck portion 24.
  • the front recess 28 is recessed in the front surface of the independent element 21 on the box bar side.
  • the front recess 28 opens forward and upward, and is closed at the bottom by the front shoulder 26. Then, the independent element 11 on the insert pin side engages with the front convex portion 252 and the front concave portion 28 (see FIG. 2).
  • the front concave portion 28 of the independent element 21 on the box bar side accommodates the rear convex portion 153 of the independent element 11 on the insert pin side
  • the front convex portion 252 of the independent element 21 on the box bar side is accommodated in the front concave portion 28 of the independent element 21 on the box bar side. It is accommodated in the rear recess 18 of the independent element 11 on the rod side.
  • the front convex portion 252 of the independent element 21 on the box rod side and the shoulder portion 16 of the independent element 11 on the insert pin side are vertically opposed to each other
  • the rear convex portion 153 of the independent element 11 on the insert pin side and the independent element 11 on the box rod side are vertically opposed to each other.
  • the front shoulder portion 26 of the element 21 is in a state of being vertically opposed to each other.
  • the rear convex portion 253, neck portion 24, and fixing portion 22 of the independent element 21 on the box bar side form a rear recessed portion 29 that covers the left and right sides of the rear side of the neck portion 24.
  • the rear recessed portion 29 is recessed in the rear surface of the independent element 21 on the box bar side.
  • the rear recess 29 opens rearward and upward, and is closed from below by the shoulder 27 on the rear side.
  • the front portion of the insert pin 7 engages with the rear concave portion 29 and rear convex portion 253 of the independent element 21 on the box rod side (see FIG. 2).
  • a front recess 74 is recessed on the front surface of the insert pin 7 (the insert pin main body 71) to accommodate the rear convex portion 253 of the independent element 21 on the box pin side. Furthermore, a corner 75 between the right surface (the surface on the box bar side) and the front surface of the insert pin 7 is accommodated in the rear recess 29 of the independent element 21 on the box bar side.
  • a corner recess 76 for accommodating the rear shoulder 27 of the independent element 21 on the box bar side is formed at the corner between the front surface and the right surface (the box bar side surface) of the corner part 75. The corner recess 76 accommodates the rear shoulder 27 of the independent element 21 on the box bar side, covering it from above and below.
  • the front shoulder portion 26 protrudes from the fixed portion 22, the neck portion 24, and the head portion 25 on the front side with respect to the neck portion 24 in the front-rear direction. Further, the front shoulder portion 26 protrudes from the rear side beyond the front end of the fixing portion 22. Further, the front shoulder portion 26 protrudes from the lower portions of the fixing portion 22, neck portion 24, and head portion 25 in the vertical direction.
  • the front surface 26c of the front shoulder portion 26 is sloped toward the rear as it approaches the insert pin.
  • the rear shoulder portion 27 protrudes from the fixed portion 22 and the neck portion 24 on the rear side with respect to the neck portion 24 in the front-rear direction. Further, the rear end of the shoulder portion 27 on the rear side is located at the same position as the rear end of the fixing portion 22. Further, the rear shoulder portion 27 projects from the lower part of the neck portion 24 in the vertical direction. Note that the upper surface 27a of the rear shoulder portion 27 and the upper surface 26a of the front shoulder portion are planes at the same height as the lower surface 25f of the front portion of the lower surface 25d of the head 25 in the front-rear direction.
  • the insert pin 7 can be inserted into and removed from the normal slider 3 and reverse slider 4.
  • the independent element 21 on the box bar side is housed inside the normal slider 3
  • the box bar 8 is housed inside both the normal slider 3 and the reverse slider 4.
  • the rear end of the continuous element portion 61 on the box bar side is located in front of the rear end of the guide column 35 of the normal slider 3.
  • the reverse opening slide fastener 1 of the first embodiment is provided with an independent element part 20 on the box bar side, and the independent element part 20 on the box bar side is connected to the continuous element part 61 on the box bar side and the box bar 8, respectively. Since they are arranged with a predetermined interval in the front-rear direction, the portion between the independent element section 20 on the box bar side and the box bar 8, and the section between the continuous element section 61 and the independent element section 61. However, due to the distance in the front-back direction, each part becomes flexible and becomes an easily deformable part.
  • the reverse opening slide fastener 1 of the first embodiment has a sufficient gap formed between the continuous element part 61 on the box bar side and the box bar 8, and the easily deformable part, so that the stringer 2 on the box bar side Flexibility at opposing side edges is improved. Therefore, when inserting the insert pin 7 into the normal slider 3 and the reverse slider 4, the independent element portion 20 and the continuous element portion 61 on the box rod side are tilted separately with respect to the linear direction of the box rod 8. The slope of the positive slider relative to the reverse slider 4 becomes smaller. In a state where the normal slider 3 and the reverse slider 4 are adjacent to each other in the front and back at the rear ends of the pair of tapes 5, it becomes easier to take an ideal front-back symmetrical posture, so it becomes easier to insert the insert pin 7.
  • the rear end of the continuous element portion 61 on the box rod side is lower than the rear end of the guide column 35. Since it is located on the front side, for example, the rear end of the continuous element section 61 on the box bar side is the same as the rear end of the guide column 35, or compared to the rear end of the guide column 35, the continuous element section 61 on the box bar side is enters the normal slider 3 shallowly, and even if the continuous element portion 61 on the box bar side does not deform much, the normal slider 3 and the reverse slider 4 are adjacent to each other front and back at the rear ends of the pair of tapes 5. In this case, it becomes easier to take an ideal front-back symmetrical posture, so it becomes easier to insert the insert pin 7 into the pair of sliders.
  • the fixing part 22 extends in front of the head 25 with respect to the independent element 21 on the box bar side.
  • the dimension between the continuous element part 61 on the box bar side and the independent element part 20 on the box bar side is narrower, The normal slider 3 and the reverse slider 4 become difficult to come off.
  • the distance W between the independent element 21 on the box bar side and the continuous element part 61 is determined from the longitudinal dimension P of one element 6a of the continuous element part 61 at the head 25. Since, for example, the stringer on the box bar side has a configuration in which the interval W is the same as the dimension P, the head 25 is attached to the guide column 35 by the amount that the interval W is wider than the dimension P. The stringers 2 on the box bar side are easily deformed without colliding with each other.
  • the corner 22h between the right surface (the surface on the side opposite to the insert pin) and the rear surface of the fixing part 22 with respect to the independent element 21 on the box rod side is moved forward as it goes toward the side opposite to the insert pin. Since the distance between the fixing part 22 and the box bar 8 is widened toward the opposite side of the insert pin due to the slope, the independent element 21 in the normal slider 3 is connected to the box bar when the insert pin 7 is inserted.
  • the corner 22h is less likely to collide with the flange 38a of the normal slider 3, and the corner 22h is less likely to come into contact with the front surface of the box rod 8, making it easier to insert the insert pin 7. .
  • the reverse opening slide fastener 1 of the first embodiment includes an independent element part 10 on the insert pin side, and the independent element 11 of the independent element part 10 on the insert pin side is connected to the continuous element part 61 on the insert pin side and the insert pin 7, respectively. Since it is arranged with an interval in the front and back direction, the part between the independent element part 10 on the insert pin side and the insert pin 7, and the part between the continuous element part 61 on the insert pin side and the independent element part on the insert pin side. The parts between the element 11 and the element 11 become easily deformable parts at predetermined intervals in the front-rear direction.
  • the reverse-opening slide fastener 1 of the first embodiment has a sufficient gap formed between the continuous element part 61 on the insert pin side and the insert pin 7, and an easily deformable part, so that the stringer 2 on the insert pin side can be easily deformed. Flexibility at opposing side edges is improved. Therefore, when inserting the insert pin 7 into the normal slider 3 and the reverse slider 4, the independent element part 10 and the continuous element part 61 on the insert pin side can be tilted separately with respect to the linear direction of the insert pin 7, When the normal slider 3 and the reverse slider 4 are adjacent to each other in the front and back at the rear ends of the pair of tapes 5, it becomes easier to take an ideal front-back symmetrical posture, so it becomes easier to insert the insert pin 7.
  • the independent element 11 of the independent element part 10 on the insert pin side can be engaged with and separated from the stringer 2 on the box rod side. More specifically, the continuous element part 61 on the box rod side Since the stringers 2 can be engaged with and separated from the independent element 21 on the box rod side, the connection strength when the pair of stringers 2 are closed is improved.
  • the independent element 21 on the box rod side can be engaged with and separated from the stringer 2 on the insert pin side, and more specifically, the independent element 11 on the insert pin side and the insert pin 7 can be engaged with each other. And since they are separable, the connection strength when the pair of stringers 2 are closed is improved.
  • the head 25 of the independent element 21 on the box rod side its front part (front convex part 252) can be engaged with and separated from the independent element 11 on the insert pin side, and its rear part (rear protrusion 253) can be engaged with the independent element 11 on the insert pin 7. can be engaged and separated.
  • the independent element 11 on the insert pin side has a thickness 13t of the engaging part 13 thinner than a thickness 12t of the fixing part 12, and the box rod Since the side independent element 21 also has a thickness 23t of the meshing part 23 that is thinner than a thickness 22t of the fixed part 22, when moving the normal slider 3 and the reverse slider 4 back and forth, the normal slider 3 and the reverse slider 4
  • the upper and lower protrusions 35a, 45a inside the housing are less likely to collide with the fixing parts 12, 22.
  • the present invention is not limited to the above embodiments.
  • the independent element section 20 on the box bar side is composed of one independent element 21 in this embodiment
  • the present invention is not limited to this, and may be composed of a plurality of independent elements 21.
  • the plurality of independent elements are arranged at intervals in the front-rear direction and fixed to the tape 5.
  • the independent element section 10 on the insert pin side is also composed of one independent element 11 in this embodiment
  • the present invention is not limited to this, and may be composed of a plurality of independent elements 11.
  • the plurality of independent elements 11 are arranged at intervals in the front-rear direction and fixed to the tape 5.

Landscapes

  • Slide Fasteners (AREA)

Abstract

La présente invention concerne une fermeture à glissière à ouverture inverse (1) comprenant : une paire de rangées d'éléments (6) qui sont fixées le long de parties de bord latéral opposées d'une paire de pièces de bande (5) ; une tige d'insertion (7) et une tige de boîte (8) qui sont fixées séparément à des parties d'extrémité arrière de la paire de pièces de bande ; et un curseur avant côté avant (3) et un curseur inverse côté arrière (4) qui sont mobiles vers l'avant et vers l'arrière le long des parties de bord latéral opposées de la paire de pièces de bande. La rangée d'éléments sur le côté tige de boîte est pourvue d'une partie élément continu (61) dans laquelle une pluralité d'éléments (6a) sont continus, et un élément indépendant (21) sur le côté tige de boîte. L'élément indépendant est logé à l'intérieur du curseur avant dans un état dans lequel la tige d'insertion peut être insérée dans/retirée du curseur avant et du curseur inverse. L'élément indépendant est disposé entre la tige de boîte et la partie élément continu sur le côté tige de boîte, et à un intervalle dans la direction avant-arrière à partir de chacune de la tige de boîte et de la partie élément continu sur le côté tige de boîte. Du fait qu'il y a des intervalles dans la direction avant-arrière, la pièce de bande sur le côté tige de boîte se déforme facilement, et la tige d'insert peut être facilement insérée dans la paire de curseurs.
PCT/JP2022/024385 2022-06-17 2022-06-17 Fermeture à glissière à ouverture inverse WO2023243092A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2022/024385 WO2023243092A1 (fr) 2022-06-17 2022-06-17 Fermeture à glissière à ouverture inverse
TW111134871A TW202400041A (zh) 2022-06-17 2022-09-15 逆開拉鏈

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Application Number Priority Date Filing Date Title
PCT/JP2022/024385 WO2023243092A1 (fr) 2022-06-17 2022-06-17 Fermeture à glissière à ouverture inverse

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011077544A1 (fr) * 2009-12-25 2011-06-30 Ykk株式会社 Fermeture à glissière à ouverture inversée
JP4762108B2 (ja) * 2006-10-20 2011-08-31 Ｙｋｋ株式会社 逆開き開離嵌挿具付きのスライドファスナー

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4762108B2 (ja) * 2006-10-20 2011-08-31 Ｙｋｋ株式会社 逆開き開離嵌挿具付きのスライドファスナー
WO2011077544A1 (fr) * 2009-12-25 2011-06-30 Ykk株式会社 Fermeture à glissière à ouverture inversée

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