US20120167354A1 - Reverse Opening Slide Fastener - Google Patents

Reverse Opening Slide Fastener Download PDF

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Publication number
US20120167354A1
US20120167354A1 US13/394,950 US200913394950A US2012167354A1 US 20120167354 A1 US20120167354 A1 US 20120167354A1 US 200913394950 A US200913394950 A US 200913394950A US 2012167354 A1 US2012167354 A1 US 2012167354A1
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US
United States
Prior art keywords
insert pin
pin
side edge
sloped
slider
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/394,950
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English (en)
Inventor
Keiichi Keyaki
Takanori Ozawa
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YKK Corp
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YKK Corp
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Filing date
Publication date
Application filed by YKK Corp filed Critical YKK Corp
Assigned to YKK CORPORATION reassignment YKK CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KEYAKI, KEIICHI, OZAWA, TAKANORI
Publication of US20120167354A1 publication Critical patent/US20120167354A1/en
Abandoned legal-status Critical Current

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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
    • A44B19/26—Sliders
    • 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
    • A44B19/384—Separable slide fasteners with quick opening devices
    • A44B19/388—Bottom end stop means for quick opening slide fasteners
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/25—Zipper or required component thereof
    • Y10T24/2509—Plural independently movable sliders

Definitions

  • the invention relates to a reverse opening slide fastener capable of performing upper opening and reverse opening and capable of separating and fitting by insertion.
  • a separable bottom end stop type slide fastener having a box pin and an insert pin at lower ends of zip tooth rows has been utilized as a slide fastener for performing opening and closing of right front and left front bodies of clothing.
  • an insert pin is serially arranged at the lower end of one zip tooth row and a box pin to which the insert pin is to be inserted is serially arranged at the lower end of the other zip tooth row.
  • the slide fastener with a separable bottom end stop has a structure that the insert pin is capable of being to and removed from the box pin and a slider in a state that the slider is lowered to the lowermost end to be contacted to the box pin enabling to separate right and left fastener stringers.
  • Patent Document 1 proposes an separable bottom end stop for a reverse slide fastener enabling bidirectional opening from both directions as the upward and downward directions by arranging two sliders of which rear openings are mutually opposed.
  • the reverse opening slide fastener disclosed in Patent Document 1 includes an upper slider and lower slider which enable opening and closing from both directions as the upward and downward directions.
  • An insert pin capable of being inserted to and removed from the upper slider and the lower slider in a state that the upper slider and the lower slider are lowered to the lowermost end of the reverse opening slide fastener and rear portions thereof are mutually contacted is disposed at the lower end of a zip tooth row of one fastener stringer.
  • a box pin having a retaining stopper to engage the lower slider at the lowermost end is disposed at the lower end of a zip tooth row of the opposing fastener stringer.
  • FIG. 11 is a partially enlarged view of an insert pin of a separable bottom end stop and a fastener stringer around a place where the insert pin is attached in FIG. 6 of Patent document 1.
  • FIG. 12 is a planar sectional view illustrating an intermediate state of re-inserting an insert pin 930 which is once removed from the upper slider 50 and the lower slider 60 to the upper slider 50 and the lower slider 60 .
  • the direction toward places where the insert pin 930 and the box pin 40 are attached is defined as a downward direction (D-direction) in the longitudinal direction of the fastener stringers 916 , 17 .
  • the direction opposite to the downward direction (D-direction) is defined as an upward direction (U-direction).
  • direction rightward and leftward orienting in the upward direction (U-direction) as being in parallel to faces of the fastener stringers 916 , 17 are defined respectively as R-direction and L-direction.
  • the first fastener stringer 916 is provided with a fastener tape 11 having a core portion 14 formed at an opposing end edge, a row of first zip teeth 12 attached at regular intervals at the core portion 14 , the insert pin 930 which is serially arranged in the downward direction (D-direction) of the first zip teeth 12 row, and a reinforcing film 24 which improves stiffness and strength at the vicinity of the insert pin 930 .
  • a flange slidingly-contacting side edge 930 F is formed at the right side edge (i.e., the side edge at R-direction) of the insert pin 930 and an opposing side edge 930 C is formed at the left side edge (i.e., the side edge at L-direction) of the insert pin 930 .
  • a top end wall 930 D having a flat section at a right angle against the longitudinal direction of the first fastener stringer 916 is formed at the top end part of the opposing side edge 930 C.
  • an extension line EL extending the flange slidingly-contacting side edge 930 F in the downward direction (D-direction) is intersected with the top end wall 930 D approximately orthogonally.
  • the intersection point between the extension line EL and the top end wall 930 D is defined as an intersection point ND.
  • FIG. 12 is a planar sectional view illustrating the inside of zip tooth guide passages 50 T, 60 T sectioned at a sectional face being approximately in parallel to the fastener tape 11 between top blades of the upper slider 50 and the lower slider 60 and the first and second fastener stringers 916 , 17 as sectioning the upper slider 50 and the lower slider 60 .
  • the reverse opening slide fastener 910 illustrated in FIG. 12 is an opening and closing device enabling to perform opening and closing between a left front body and a right front body of a long coat, for example.
  • the reverse opening slide fastener 910 includes a right-and-left pair of fastener tape 11 , core portions 14 formed respectively along opposing end edges of the fastener tapes 11 , and a number of first and second zip teeth 12 , 13 formed in an aligned manner at regular intervals as nipping the core portions 14 respectively.
  • the reverse opening slide fastener 910 includes the upper slider 50 capable of performing upper opening and the lower slider 60 capable of performing reverse opening to which the first and second zip teeth 12 , 13 are inserted.
  • the rear opening of the upper slider 50 and the rear opening of the lower slider 60 are arranged to be opposed.
  • a reinforcement film 24 formed of a resin-made film and the like is stuck respectively to both faces at the lower end part (i.e., the end part in D-direction) of the first and second fastener stringers 916 , 17 .
  • the insert pin 930 and the box pin 40 are serially arranged to the first and second zip teeth 12 , 13 rows as nipping both the reinforcement film 24 and the core portion 14 .
  • a hook-shaped stopper 46 is formed at the lower end (i.e., the end part in D-direction) of the box pin 40 .
  • the stopper 46 prevents the lower slider 60 from dropping from the lower side by being contacted to the shoulder part of the lower slider 60 or the end part of a flange 60 F of the lower slider 60 in a state that the lower slider 60 is lowered to the lowermost end.
  • FIG. 12 illustrates an embodiment in which the stopper 46 is engaged with the lower end of the flange 60 F of the lower slider 60 by protruding the stopper 46 to the left direction (L-direction) from the lower end of the box pin 40 .
  • a top blade (not illustrated) and a back blade 53 of the upper slider 50 of FIG. 12 are mutually fixed with a guide column 50 D at an upper part (i.e., a part in U-direction) of the center part in the right-left direction (i.e., the center part in R-L direction) of the upper slider 50 .
  • a flange 50 F is extended in an opposing manner respectively from the both side edges at right and left of the top blade and back blade 53 of the upper slider 50 .
  • the zip tooth guide passage 50 T to which the right-and-left pair of the first zip teeth 12 row and the second zip teeth 13 row are inserted is formed at the inside of the upper slider 50 surrounded by the top blade, the back blade 53 and the flanges 50 F as being a Y-shaped space in a planar view.
  • a tab support member (not illustrated) which swingably supports a tab of the upper slider 50 is formed at the top face side (i.e., the near side of the paper face of FIG. 12 ) of the top blade of the upper slider 50 .
  • a tape insertion passage (not illustrated) is formed at the end edge section of the flange 50 F along the end edge of the flange 50 F.
  • the tape insertion passage is a section on which the fastener tape 11 slides at the time of sliding the upper slider 50 as being a gap through which the fastener tape 11 attached with the first zip teeth 12 row and the second zip teeth 13 row having the zip tooth guide passage 50 T inserted passes.
  • the lower slider 60 of FIG. 12 is also formed with a top blade (not illustrated), a back blade 63 , a guide column 60 D, flanges 60 F, a zip tooth guide passage 60 T, shoulder openings, a rear opening, and a tape insertion passage. Further, a tab support member (not illustrated) which swingably supports a tab of the lower slider 60 is formed at the top face of the top blade of the lower slider 60 .
  • the removed insert pin 930 is inserted from the shoulder opening (i.e., the shoulder opening at the right side (R-direction) in the example of FIG. 12 ) of the upper slider 50 .
  • the insert pin 930 is inserted into the zip tooth guide passages 50 T, 60 T of the upper slider 50 and the lower slider 60 in the downward direction (D-direction) while the vicinity of the reinforcement film 24 at the lower part of the first fastener stringer 916 is held by a user and is rotated counterclockwise as illustrated in FIG. 12 so that the insert pin 930 is to be in parallel to the box pin 40 .
  • the top end wall 930 D formed as being approximately orthogonal to the extension line EL collides with the guide column 60 D of the lower slider 60 (in particular, at the vicinity of the tip of the guide column 60 D) head on when one side edge of the insert pin 930 is slidingly contacted to the flange 50 F of the upper slider 50 and the other side edge is slidingly contacted to the box pin 40 , as illustrated in FIG. 12 for example.
  • the collision occurs with the guide column 60 D at the vicinity of the intersection point ND where the top end wall 930 D and the extension line EL are intersected.
  • the insert pin 930 cannot be further lowered in the downward direction (D-direction). Accordingly, the insert pin 930 is stopped at the position colliding with the guide column 60 D (i.e., the position where the insert pin does not reach the lowermost end).
  • the user may acknowledge stopping of the insert pin 930 inserted from the shoulder opening of the upper slider 50 with feeling and misunderstand that the insert pin 930 is inserted to a predetermined position.
  • the user decide that the insert pin 930 has been inserted to the predetermined position, the user subsequently performs sliding operation of the upper slider 50 in the upward direction (U-direction) to close the reverse opening fastener 910 .
  • the first zip tooth 12 being a counterpart to be coupled with the second zip tooth 13 which is attached right above the box pin 40 is not lowered to a predetermined position. Accordingly, even if the upper slider 50 is being moved in the upward direction (U-direction) from the state of FIG. 12 , the second zip tooth 13 attached right above the box pin 40 collides with the upper part of the insert pin 930 and the second zip tooth 13 and the insert pin 930 cannot be coupled. Therefore, the insert pin 930 gets stuck with an inner face of the flange 50 F of the upper slider 50 . In this case, the upper slider 50 cannot be slid in the upward direction (U-direction).
  • the invention provides a reverse opening slide fastener for performing separating and coupling between right and left fastener stringers in which an insert pin can be smoothly inserted to a predetermined position even in a case that the insert pin is carelessly inserted froma shoulder opening of an upper slider as being advanced straightly when the right and left fastener stringers once separated are to be re-coupled.
  • the invention provides a reverse opening slide fastener in which upper and lower sliders are arranged having rear openings mutually opposed and in which the top end of an insert pin can be inserted beyond a rear opening side tip of a guide column of a lower slider when the insert pin is inserted into the upper and lower sliders from a shoulder opening of the upper slider, including a right-and-left pair of first and second fastener stringers, the insert pin and a box pin which are arranged respectively at a lower end of inner side edge sections of the first and second fastener stringers, and the upper slider and the lower slider which open and close the first and second fastener stringers.
  • the reverse opening slide fastener is characterized in that the insert pin includes a box pin slidingly-contacting side edge at the box pin side and a flange slidingly-contacting side edge at a tape inner side being arranged opposite to the box pin slidingly-contacting side edge; a first sloped section sloped in a direction to be apart from the box pin toward the top end of the insert pin is formed at the box pin slidingly-contacting side edge; and the first sloped section is formed as being intersected with an extension line obtained by extending a planar section of the flange slidingly-contacting side edge to the top end side of the insert pin and has a shape sloped at an angle to be contacted to the guide column of the lower slider or to be apart from the guide column when the insert pin is inserted to the upper and lower sliders.
  • a side face of the first sloped section of the box pin slidingly-contacting side edge is formed into a continuously curved shape.
  • a second sloped section sloped in a direction to be apart from the box pin toward the top end of the insert pin is formed at the flange slidingly-contacting side edge being at the opposite side to the first sloped section, and a width dimension between the first sloped section at the box pin slidingly-contacting side edge and the second sloped section at the flange slidingly-contacting side edge is decreased toward the top end of the insert pin.
  • the lower slider includes top and back blades which are connected by the guide column and a stopper pawl which is arranged at one of the top and back blades, a pawl guide sloped face which is sloped to gradually decrease thickness of the insert pin toward the insert pin top end is formed at a surface of the top end part of the insert pin at the stopper pawl side, and the pawl guide sloped face is formed as crossing over the extension line.
  • the insert pin includes the box pin slidingly-contacting side edge arranged at the box pin side and the flange slidingly-contacting side edge arranged at the tape inner side. Further, the first sloped section sloped in the direction to be apart from the box pin side toward the top end of the insert pin is formed at the box pin slidingly-contacting side edge. The first sloped section formed at the box pin slidingly-contacting side edge is formed as being intersected with the extension line obtained by extending the planar section of the flange slidingly-contacting side edge to the top end side of the insert pin.
  • the first sloped section has a shape sloped at the angle to be contacted to the guide column of the lower slider or to be apart from the guide column when the insert pin is inserted to the upper and lower sliders.
  • the first sloped section of the box pin slidingly-contacting side edge has a shape sloped at an angle to be contacted to a side face at the insert pin side of the guide column of the lower slider or to be apart from the side face at the insert pin side.
  • the insert pin can be smoothly inserted to a position of the lowermost end even in a case that the insert pin is carelessly inserted from the shoulder opening of the upper slider as being advanced straightly when the right and left fastener stringers once separated are to be re-coupled.
  • the top end of insert pin is inserted beyond the rear opening side tip of the guide column while the first sloped section of the insert pin is contacted to the guide column (in particular, the side face of the guide column) of the lower slider and the top end of the insert pin is guided in a direction to be apart from the box pin owing to the slope of the first sloped section.
  • the top end of the insert pin is inserted beyond the rear end side tip of the guide column without collision of the first sloped section of the insert pin with the guide column. Accordingly, the insert pin can be smoothly inserted to the lowermost end position without being stopped by collision with the guide column of the lower slider.
  • the lowermost end position of the insert pin refers to a position where the top end of the insert pin reaches the shoulder opening side beyond the rear opening side tip of the guide column of the lower slider and the insert pin becomes approximately in parallel to the box pin.
  • the side face of the guide column refers to a wall face of the guide column of which gradient (when the face is a curved face, gradient of a tangential line) against the longitudinal direction of the slider is 45 degrees of smaller.
  • the side face of the first sloped section (in particular, the opposing side face of the first sloped section opposing to the guide column of the lower slider) of the box pin slidingly-contacting side edge can be formed into a continuously curved shape.
  • the reverse opening slide fastener of the invention can be structured such that the second sloped section sloped in the direction to be apart from the box pin toward the top end part of the insert pin is formed at the flange slidingly-contacting side edge of the insert pin and the width dimension between the first sloped section of the box pin slidingly-contacting side edge and the second sloped section of the flange slidingly-contacting side edge is decreased toward the top end of the insert pin.
  • the first sloped section can be reliably formed while maintaining strength of the insert pin top end part and the flange slidingly-contacting side edge can be prevented from being interfered with the flange and the like of the lower slider at the time of inserting the insert pin. Accordingly, insertion operation of the insert pin can be performed more smoothly and stably.
  • the pawl guide sloped face sloped to gradually decrease thickness of the insert pin toward the top end of the insert pin is formed at the surface of the top end part of the insert pin as crossing over the extension line.
  • the surface at the top end part of the insert pin is shaped spherical in combination with the pawl guide sloped face and the sloped face (i.e., the curved face) of the first sloped section.
  • the stopper pawl of the lower slider can be guided along the pawl guide sloped face as being slidingly contacted to the pawl guide sloped face reliably. Therefore, the stopper pawl can be stably retracted.
  • FIG. 1 is a plane view of a reverse opening slide fastener according to the invention.
  • FIG. 2 is a planar sectional view at the vicinity of a lower slider in a state that the lower slider is lowered to the lowermost end in the reverse opening fastener of FIG. 1 .
  • FIG. 3 is an explanatory plane view of an insert pin and a box pin in a state that right and left fastener stringers are separated.
  • FIG. 4 is a side view of the insert pin viewing from the box pin side in FIG. 3 being a view on arrow IV-IV.
  • FIG. 5 is a perspective view of the insert pin of FIG. 3 .
  • FIG. 6 is a planar sectional view illustrating an intermediate state that the once-removed insert pin is re-inserted to upper and lower sliders after the upper and lower sliders are lowered to the lowermost end.
  • FIG. 7 is a side view of the state of FIG. 6 viewing from the box pin side being a view on arrow VII-VII.
  • FIG. 8 is a view illustrating a state that the vicinity of the top end part of the insert pin is faced to a guide column of the lower slider with further inserting of the insert pin from the state of FIG. 6 .
  • FIG. 9 is a planar sectional view illustrating as enlarging the vicinity of the top end part of the insert pin and a section of the guide column of FIG. 8 .
  • FIG. 10 is a planar sectional view illustrating a state that the insert pin is inserted to the lowermost end.
  • FIG. 11 is a partially enlarged view of an insert pin of a conventional separable bottom end stop and a fastener stringer around a place where the insert pin is attached in Patent Document 1.
  • FIG. 12 is a view illustrating a state that the top end part of the insert pin is contacted to a guide column of a lower slider when the conventional insert pin of FIG. 11 is inserted to an upper slider and the lower slider.
  • FIG. 1 is a plane view of a reverse opening slide fastener 10 according to the invention.
  • FIG. 2 is a planar sectional view at the vicinity of a lower slide in a state that the lower slide is lowered to the lowermost end in the reverse opening fastener of FIG. 1 .
  • FIG. 3 is an explanatory plane view of an insert pin and a box pin in a state that right and left fastener stringers are separated.
  • FIG. 4 is a side view of the insert pin viewing from the box pin side in FIG. 3 being a view on arrow IV-IV.
  • FIG. 5 is a perspective view of the insert pin of FIG. 3 .
  • the reverse opening slide fastener 10 illustrated in FIG. 1 is an opening and closing device capable of opening and closing a left front body and a right front body of a jacket and a long coat, for example.
  • the reverse opening slide fastener 10 includes a right-and-left pair of first and second fastener stringers 16 , 17 , and an upper slider 50 and a lower slider 60 which have a first zip teeth 12 row and a second zip teeth 13 row attached to opposing end edges of the first and second fastener stringers 16 , 17 inserted respectively thereto and which perform coupling and separating of the first zip teeth 12 row and the second zip teeth 13 row.
  • the first and second zip teeth 12 , 13 capable of being mutually coupled are coupled with entering of an engaging convex portion of one side into an engaging concave portion of the other side.
  • the first fastener stringer 16 includes a fastener tape 11 having a core portion 14 formed at an opposing side edge (i.e., an inner side edge), the row of a number of the first zip teeth 12 formed in an aligned manner at regular intervals being evenly spaced apart as nipping the core portion 14 , and an upper stopper 18 disposed at one end part of the first zip teeth 12 row.
  • the upper stopper 18 is a member to prevent the upper slider 50 from dropping from the first zip teeth 12 row.
  • a reinforcement film 24 formed of a resin-made film and the like is stuck respectively to both faces of the fastener tape 11 at the other end part of the first zip teeth 12 row.
  • An insert pin 30 is serially arranged as nipping both the reinforcement film 24 and the core portion 14 .
  • the second fastener stringer 17 includes a fastener tape 11 having a core portion 14 formed at an opposing side edge (i.e., an inner side edge), the row of a number of the second zip teeth 13 formed in an aligned manner at regular intervals being evenly spaced apart as nipping the core portion 14 , and an upper stopper 18 disposed at one end part of the second zip teeth 13 row.
  • the upper stopper 18 is a member to prevent the upper slider 50 from dropping from the second zip teeth 13 row.
  • a reinforcement film 24 formed of a resin-made film and the like is stuck respectively to both faces of the fastener tape 11 at the other end part of the second zip teeth 13 row.
  • a box pin 40 for holding as positioning the lower slider 60 at the lowermost end is serially arranged as nipping both the reinforcement film 24 and the core portion 14 .
  • a separable bottom end stop 22 is constituted with the insert pin 30 , the box pin 40 and the lower slider 60 .
  • the longitudinal direction of the fastener tape 11 is defined as the upper-lower direction.
  • a direction toward a position where the upper stopper 18 is located is defined as the upward direction (i.e., U-direction) of the reverse opening slide fastener 10 and a direction toward a position where the insert pin 30 and the box pin 40 are arranged is defined as the downward direction (i.e., D-direction).
  • the near side against the paper face is defined as the top face (indicated as T-direction in FIG.
  • the reverse opening slide fastener 10 and the opposite side is defined as the back face (indicated as B-direction in FIG. 4 ).
  • the tape width direction of the fastener tape 11 is defined as the right-left direction.
  • the right side as observing the top face of the reverse opening slide fastener 10 i.e., in T-direction
  • R-direction The right side as observing the top face of the reverse opening slide fastener 10 (i.e., in T-direction)
  • R-direction is defined as L-direction.
  • U-direction, T-direction and R-direction are opposite respectively to D-direction, B-direction and L-direction.
  • the box pin 40 arranged below the second zip teeth 13 row at the lower end part of the opposing end edge of the second fastener stringer 17 is formed into an elongated bar-like shape along the core portion 14 of the fastener tape 11 .
  • the box pin 40 is capable of positioning the insert pin 30 which is inserted to zip teeth guide passages of the upper slider 50 and the lower slider 60 at the lowermost end of the second fastener stringer 17 while performing positioning of the lower slider 60 at the lowermost end.
  • the lower slider 60 is arranged closer to the insert pin 30 and the box pin 40 than the upper slider 50 .
  • the upper slider 50 and the lower slider 60 are arranged as being oriented so that rear openings thereof are mutually faced.
  • the right side edge (i.e., the side edge in R-direction) of the bar-shaped box pin 40 is defined as a flange slidingly-contacting side edge 40 F which is arranged at the tape inner side and the left side edge (i.e., the side edge in L-direction) is defined as an opposing side edge 40 C which is arranged at the insert pin 30 side.
  • the flange slidingly-contacting side edge 40 F is a section to which flanges 50 F, 60 F of the upper and lower sliders 50 , 60 are slidingly contacted.
  • a hook-like stopper 46 shaped as being protruded rightward (in R-direction) is formed at the lower end part of the box pin 40 at the second fastener stringer 17 .
  • a shoulder portion of the lower slider 60 which is lowered to the lowermost end is to be contacted to the stopper 46 .
  • the stopper 46 prevents the lower slider 60 from dropping downward (i.e., in D-direction).
  • the stopper 46 is shaped as being protruded rightward (i.e., in R-direction) from the lower end of the box pin 40 .
  • the flange 60 F at the shoulder portion of the lower slider 60 can be engaged with the stopper 46 when the lower slider 60 is slid to the lowermost end position.
  • the shape of the stopper 46 according to the invention is not limited to the shape of the stopper 46 illustrated in FIGS. 2 and 3 .
  • the stopper is shaped as being protruded to the top direction (T-direction) or the back direction (B-direction) of the slide fastener from the lower end part of the box pin and the protruded portion is contacted to a top blade 62 or a back blade 63 (see FIG. 7 to be described later) of the lower slider 60 .
  • An opposing side edge 40 C of the box pin 40 is arranged at the opposite side to the flange slidingly-contacting side edge 40 F and is an opposing face which opposes to the insert pin 30 .
  • a second engaging guide piece 42 shaped like a triangular piece which forms a second engaging portion 44 and a guide face 43 is formed at an upper part (i.e., a part in U-direction) of the opposing side edge 40 C of the box pin 40 as being protruded from the opposing side edge 40 C.
  • the second engaging portion 44 is formed in a planar shape at the upper side (i.e., U-direction) where the second zip teeth 13 row exists.
  • the guide face 43 has a shape of which dimension in the width direction is gradually increased toward the upper side (i.e., U-direction).
  • the guide face 43 is structured as a sloped guide face which opens the lower end part of the box pin 40 in the right direction (R-direction) as slidingly-contacting on a guide column 60 D of the lower slider 60 when the lower slider 60 is slid in the upward direction (U-direction) from the lowermost end.
  • the guide face 43 is formed as a guide face to perform smooth transition to a coupled state between the first zip teeth 12 row and the second zip teeth 13 row and to a released state from the coupled state.
  • each guide column 50 D, 60 D of the upper and lower slider 50 , 60 has a tip at the rear opening side.
  • Each guide column 50 D, 60 D has a sloped face of which thickness in the width direction is gradually increased from the tip toward the shoulder opening and a sloped face of which thickness in the width direction is gradually decreased at the shoulder opening side via an inflection point. Further, the sloped face at the shoulder opening side has a larger slope angle than that of the sloped face of which thickness is gradually increased at the rear opening side.
  • a wall face of which gradient of a tangential line against the longitudinal direction of the slider is large than 45 degrees is to be a rear face at the vicinity of the tip of the guide column 50 D, 60 D and right and left wall faces of which gradient of a tangential line against the longitudinal direction of the slider is 45 degrees or smaller are to be side faces of the guide column 50 D, 60 D.
  • the insert pin 30 arranged below the first zip teeth 12 row at the lower end part of the opposing end of the first fastener stringer 16 is formed into an elongated bar-like shape along the core portion 14 of the fastener tape 11 .
  • the top end part of the insert pin 30 is curved to the left direction (L-direction) to facilitate insertion of the once-removed insert pin 30 from an oblique upper side into the zip tooth guide passages of the upper slider 50 and the lower slider 60 .
  • the left side edge (i.e., the side edge in L-direction) of the bar-shaped insert pin 30 is defined as a flange slidingly-contacting side edge 30 F which is arranged at the tape inner side and the right side edge (i.e., the side edge in R-direction) is defined as a box pin slidingly-contacting side edge (i.e., an opposing side edge) 30 C which is arranged at the box pin 40 side.
  • the flange slidingly-contacting side edge 30 F of the insert pin 30 is a section to which the flanges 50 F, 60 F of the upper slider 50 and the lower slider 60 are slidingly contacted (see FIG. 2 and FIGS. 6 to 10 to be described later) when the once-removed insert pin 30 is inserted to the zip tooth guide passages 50 T, 60 T of the upper slider 50 and the lower slider 60 (see FIG. 2 and FIGS. 6 to 10 to be described later).
  • the top side edge (i.e., the side edge in T-direction) of the insert pin 30 is defined as a top wall 30 T and the back side edge (i.e., the side edge in B-direction) is defined as a back wall 30 B.
  • the top wall 30 T and the back wall 30 B of the insert pin 30 are sections to which inner walls of the top blade 62 and the back blade 53 of the upper slider 50 and the lower slider 60 (see FIG. 7 to be described later) are slidingly contacted when the insert pin 30 is inserted into the zip tooth guide passages 50 T, 60 T of the upper slider 50 and the lower slider 60 (see FIG. 2 and FIGS. 6 to 10 to be described later).
  • the box pin slidingly-contacting side edge 30 C of the insert pin 30 is an opposing face which opposes to the box pin 40 as being arranged at the opposite side to the flange slidingly-contacting side edge 30 F.
  • the box pin slidingly-contacting side edge 30 C includes a planar section being in parallel to the tape length direction and a first sloped section 30 E formed into a shape sloped in a direction to be apart from the box pin 40 side toward the top end part of the insert pin 30 as being arranged at the insert pin top end side than the planar section.
  • the first sloped section 30 E has a shape sloped at an angle so as to be contacted to an insert-pin-side side face of the guide column 60 D of the lower slider 60 (or so as to be apart from the insert-pin-side side face of the guide column 60 D) in a case that the insert pin 30 is inserted to the upper and lower sliders 50 , 60 and that the flange slidingly-contacting side edge 30 F of the insert pin 30 is slidingly contacted to the flange 50 F of the upper slider 50 and the box pin slidingly-contacting side edge 30 C of the insert pin 30 is slidingly contacted to the opposing side edge 40 C of the box pin 40 .
  • the flange slidingly-contacting side edge 30 F has a planar section which is arranged at the first zip teeth 12 row side in parallel to the tape length direction to be contacted to the flange 50 F of the upper slider 50 when the insert pin 30 is inserted thereto and a second sloped section 30 G sloped in a direction to be apart from the box pin 40 side toward the top end part of the insert pin 30 .
  • the second sloped section 30 G is formed at the opposite side to the first sloped section 30 E at the box pin slidingly-contacting side edge 30 C side.
  • the width dimension (i.e., the dimension in R-L direction) between the second sloped section 30 G and the first sloped section 30 E at the box pin slidingly-contacting edge 30 C side is gradually decreased toward the top end of the insert pin 30 . That is, the second sloped section 30 G at the flange slidingly-contacting side edge 30 F side is formed with angle variation being more gradual than that of the first sloped section 30 E at the box pin slidingly-contacting side edge 30 C side.
  • the first sloped section 30 E can be reliably formed while maintaining strength of the insert pin top end part and the flange slidingly-contacting side edge 30 F can be prevented from being interfered with the flange 60 F of the lower slider 60 and the like during insertion of the insert pin 30 .
  • an extension line EL denotes a line extending the planar section of the flange slidingly-contacting side edge 30 F which contacts to the flange 50 F of the upper slider 50 at the time of insertion of the insert pin 30 toward the top end part of the insert pin 30 .
  • the first sloped section 30 E sloped at the box pin slidingly-contacting side edge 30 C is formed to have a large degree of slope to be intersected with the extension line EL. Specifically, as illustrated in FIG.
  • the extension line EL is the extension line of the planar section which contacts to the flange 50 F of the upper slider 50 when the insert pin 30 is inserted from the shoulder opening of the upper slider 50 and the box pin slidingly-contacting side edge 30 C of the insert pin 30 contacts to the box pin 40 .
  • the intersecting position between the sloped box pin slidingly-contacting side edge 30 C and the extension line EL is defined as an intersection point ND.
  • a section of the insert pin 30 at the vicinity of the intersection point ND becomes to a facing area which faces to the guide column 60 D of the lower slider 60 .
  • the side face of the first sloped section 30 E is formed into a curved face shape continuously curved to be gradually apart from the box pin 40 toward the insert pin top end.
  • the side face of the first sloped section 30 E is formed into a flat face shape inflected at a predetermined angle or larger against the planar section of box pin slidingly-contacting side edge 30 C or a face shape inflected in a multistep manner at a plurality of inflection parts, instead of being formed into the curved shape.
  • a plate-shaped first engaging portion 34 of which engaging face is oriented to the downward direction (D-direction) is formed at an upper part (i.e., a part at U-direction) of the box pin slidingly-contacting side edge 30 C of the insert pin 30 .
  • the first engaging portion 34 is a section to stop the insert pin 30 at the lowermost end as being engaged with the above-mentioned second engaging portion 44 of the box pin 40 when the insert pin 30 once removed is inserted into the zip tooth guide passages 50 T, 60 T of the upper slider 50 and the lower slider 60 located at the lowermost end.
  • a first engaging guide piece 32 obtained by extending the top wall 30 T to be a triangle in a planar view along the first engaging portion 34 is formed at the box pin slidingly-contacting side edge 30 C of the insert pin 30 .
  • a guide face 33 connecting the first engaging portion 34 with the box pin slidingly-contacting side edge 30 C is formed at the end edge of the first engaging guide piece 32 at the box pin 40 side.
  • the guide face 33 has a shape of which dimension in the width direction is gradually increased toward the upward direction (U-direction).
  • the guide face 33 is formed as a guide face which opens the lower end part of the insert pin 30 in the left direction (L-direction) as slidingly-contacting on the guide column 60 D of the lower slider 60 when the lower slider 60 is slid in the upward direction (U-direction) from the lowermost end.
  • the first engaging guide piece 32 is a section formed as extending the top wall 30 T
  • the second engaging guide piece 42 of the box pin 40 is accommodated at the back face side (i.e., in B-direction) of the first engaging guide piece 32 when the insert pin 30 and the box pin 40 are inserted into the zip tooth guide passages 50 T, 60 T of the upper slider 50 and the lower slider 60 .
  • a clearance groove 36 is formed at a section of the box pin slidingly-contacting side edge 30 C of the insert pin 30 surrounded by the first engaging guide piece 32 and the first engaging portion 34 .
  • the first engaging guide piece 32 also has a function to reinforce the first engaging portion 34 extending from the box pin slidingly-contacting side edge 30 C of the insert pin 30 .
  • a coupling protrusion 38 to be coupled with an engaging concave portion formed at a coupling head of the second zip tooth 13 at the lowermost end of the second zip teeth 13 row is formed on an upper face of the first engaging portion 34 of the insert pin 30 at the first zip teeth 12 row side.
  • a pawl guide sloped face 39 is formed by sloping the top wall 30 T to the back wall 30 B side gradually toward the top end part of the insert pin 30 .
  • the pawl guide sloped face 39 is a sloped face formed for performing smooth insertion operation as pushing off the locking pawl 64 (see FIG. 2 ) of the lower slider 60 which functions as a slider with an automatic stop device to the top face side (i.e., in T-direction) when the insert pin 30 once removed is to be inserted into the zip tooth guide passage 60 T of the lower slider 60 .
  • FIG. 2 illustrates a state that the lower slider 60 is lowered to the lowermost end as performing coupling between the first zip teeth 12 row and the second zip teeth 12 row by sliding the lower slider 60 to the downward direction (D-direction) from a state illustrated in FIG. 1 .
  • the top end of the insert pin 30 and the top end of the box pin 40 of the reverse opening slide fastener 10 are capable of being inserted to the shoulder opening side from the rear opening side tip portion of the guide column 60 D of the lower slider 60 and are to be approximately at the same position in the longitudinal direction of the reverse opening slide fastener 10 .
  • appearance can be corrected to be bilaterally symmetric by aligning height of the right and left (i.e., R-L direction) of the first fastener stringer 16 and the second fastener stringer 17 . Further, since the guide column 60 D of the lower slider 60 is introduced without having interference against the insert pin 30 and the box pin 40 when sliding the lower slider 60 in the upward direction (U-direction), the lower slider 60 can be smoothly slid.
  • the top end part of the insert pin 30 and the top end part of the box pin 40 can be concealed as being accommodated in the zip tooth guide passage 60 T of the lower slider 60 in a state that the lower slider 60 is lowered to the lowermost end in the downward direction (D-direction). Accordingly, appearance of the reverse opening slide fastener 10 can be tidied in a state that the lower slider 60 is lowered to the lowermost end.
  • FIG. 6 is a planar sectional view illustrating a state that the insert pin 30 once removed is inserted through the shoulder opening of the left side (L-side) of the upper slider 50 and that the top end part of the insert pin 30 is slid toward the downward direction (D-direction) in the zip tooth guide passage 60 T of the lower slider 60 .
  • FIG. 7 is a side view of the state illustrated in FIG. 6 viewing from the box pin 40 side being a view on arrow VII-VII of FIG. 6 .
  • FIG. 8 is a view illustrating a state that the vicinity of the top end part of the insert pin 30 is faced to the guide column 60 D of the lower slider 60 with further inserting of the insert pin 30 from the state of FIG. 6 .
  • FIG. 9 is a planar sectional view illustrating as enlarging the vicinity of the top end part of the insert pin 30 and the section of the guide column 60 D of FIG. 8 .
  • FIG. 10 is a planar sectional view illustrating a state that the insert pin 30 is inserted to the lowermost end.
  • the same reference numeral is given to the same section as that described with reference to FIGS. 1 to 5 and description thereof is omitted.
  • the guide column 50 D is arranged to as standing from the center part in the right-left direction (R-L direction) of an upper part (i.e., a part in U-direction) at the back blade 53 which forms a bottom portion of the upper slider 50 .
  • the guide column 50 D has a tip at the rear opening side thereof. Further, the guide column 50 D has a sloped face of which thickness in the width direction is gradually increased from the tip toward the shoulder opening and a sloped face of which thickness in the width direction is gradually decreased at the shoulder opening side via an inflection point.
  • a top blade (not illustrated) is formed at the top face side (in T-direction) of the guide column 50 D.
  • a tab (not illustrated) to be operated by a user is swingably arranged at the top face (in T-direction) of the top blade.
  • Right and left flanges 50 F are formed toward the opposing blades from both right and left (R-L direction) side edge sections of the top blade and back blade 53 of the upper slider 50 .
  • the zip tooth guide passage 50 T to which a right-and-left pair of the first zip teeth 12 row and the second zip teeth 12 row are inserted is formed at the inside of the slider surrounded by the top blade, the back blade 53 and the flanges 50 F as being a Y-shaped space in a planar view.
  • a locking pawl 54 (see FIGS. 6 and 8 ) functioning for a slider with an automatic stop device is protruded from the top blade into the zip tooth guide passage 50 T as being capable of advancing and retreating.
  • the locking pawl 54 fixes the position of the upper slider 50 by being inserted to a gap of the first zip teeth 12 row or the second zip teeth 12 row which are in a coupled state with automatic advancing into the zip guide passage 50 T owing to an action of biasing means (not illustrated), for example, when the tab is released by the user. Further, when the tab is pulled with user's operation, the locking pawl 54 is pulled up from the zip tooth guide passage 50 T against urging force of the biasing means. Then, the locking pawl 54 comes out from the gap of the first zip teeth 12 row or the second zip teeth 12 row, so that the upper slider 50 which is fixed becomes into a slidable state.
  • the shoulder opening of the zip tooth guide passage 50 T is opened respectively at both sides of right and left (R-L direction) of the guide column 50 D of the upper slider 50 .
  • the rear opening of the zip tooth guide passage 50 T is opened at a lower part (i.e., a part in D-direction) of the upper slider 50 .
  • a tape insertion passage is formed at the end edge section of the flange 50 F along the end edge of the flange 50 F.
  • the tape insertion passage is a section on which the fastener tape 11 slides at the time of sliding the upper slider 50 as being a gap through which the fastener tape 11 attached with the first zip teeth 12 row and the second zip teeth 12 row having the zip tooth guide passage 50 T inserted passes.
  • the upper slider 50 When the upper slider 50 is slid in the upward direction (U-direction) in FIG. 1 in a state that the first zip teeth 12 row and the second zip teeth 12 row at right and left are inserted into the zip tooth guide passage 50 T, the first zip teeth 12 row and the second zip teeth 12 row which are in a separated state are introduced from the shoulder openings at right and left (R-L direction) of the upper slider 50 .
  • the introduced first and second zip teeth 12 , 13 rows are ejected from the rear opening at the downward direction (D-direction) of FIG. 1 in a coupled state as being merged by being guided along the inner wall of the flange 50 F of the zip tooth guide passage 50 T.
  • first zip teeth 12 row and the second zip teeth 12 row in a coupled state are introduced from the rear opening.
  • the introduced first and second zip teeth 12 , 13 rows in a coupled state are separated in the right and left direction (R-L direction) along the guide column 50 D and ejected from the both shoulder openings in the upward direction (U-direction) in FIG. 1 .
  • the guide column 60 D is arranged as standing from the center part in the right-left direction (R-L direction) of a lower part (i.e., a part in D-direction) at the back blade 63 which forms a bottom portion of the lower slider 60 .
  • the guide column 60 D has a tip at the rear opening side thereof.
  • the guide column 60 D has a sloped face of which thickness in the width direction is gradually increased from the tip toward the shoulder opening and a sloped face of which thickness in the width direction is gradually decreased at the shoulder opening side via an inflection point.
  • a top blade 62 (see FIG. 7 ) is formed at the top face side (in T-direction) of the guide column 60 D.
  • a tab (not illustrated) to be operated by a user is swingably arranged at the top face (in T-direction) of the top blade 62 .
  • Right and left flanges 60 F are formed extending toward the opposing blades from both right and left (R-L direction) side edge sections of the top blade 62 and the back blade 63 of the lower slider 60 .
  • the zip tooth guide passage 60 T to which the right-and-left pair of the first zip teeth 12 row and the second zip teeth 12 row are inserted is formed at the inside of the slider surrounded by the top blade 62 , the back blade 63 and the flanges 60 F as being a Y-shaped space in a planar view.
  • a locking pawl 64 (see FIGS. 6 to 10 ) functioning for a slider with an automatic stop device is protruded from the top blade 62 into the zip tooth guide passage 60 T as being capable of advancing and retreating.
  • the locking pawl 64 fixes the position of the lower slider 60 by being inserted to a gap of the first zip teeth 12 row or the second zip teeth 12 row which are in a coupled state with automatic advancing into the zip guide passage 60 T owing to an action of biasing means (not illustrated), for example, when the tab is released by the user. Further, when the tab is pulled with user's operation, the locking pawl 64 is pulled up from the zip tooth guide passage 60 T against biasing force of the biasing means. Then, the locking pawl 64 comes out from the gap of the first zip teeth 12 row or the second zip teeth 12 row, so that the lower slider 60 which is fixed becomes into a slidable state.
  • the shoulder opening of the zip tooth guide passage 60 T is opened respectively at both sides of right and left (R-L direction) of the guide column 60 D of the upper slider 60 .
  • the rear opening of the zip tooth guide passage 60 T is opened at an upper part (i.e., a part in U-direction) of the lower slider 60 .
  • a tape insertion passage is formed at the end edge section of the flange 60 F along the end edge of the flange 60 F.
  • the tape insertion passage is a section on which the fastener tape 11 slides at the time of sliding the lower slider 60 as being a gap through which the fastener tape 11 attached with the first zip teeth 12 row and the second zip teeth 12 row having the zip tooth guide passage 60 T inserted passes.
  • the lower slider 60 is arranged closer to the insert pin 30 and the box pin 40 than the upper slider 50 as described above, in a state that the first zip teeth 12 row and the second zip teeth 12 row are inserted respectively into the zip tooth guide passages 50 T, 60 T. Further, the rear opening of the upper slider 50 is faced to the rear opening of the lower slider 60 .
  • first zip teeth 12 row and the second zip teeth 12 row in a coupled state are introduced from the rear opening.
  • the introduced first and second zip teeth 12 , 13 rows in a coupled state are separated in the right and left direction (R-L direction) along the guide column 60 D and ejected from the both shoulder openings in the downward direction (D-direction) in FIG. 1 .
  • the lower slider 60 when the lower slider 60 is slid in the downward direction (D-direction) in FIG. 1 in a state that the first zip teeth 12 row and the second zip teeth 12 row at right and left are inserted into the zip tooth guide passage 60 T, the first zip teeth 12 row and the second zip teeth 12 row which are in a separated state are introduced from the shoulder openings at right and left (R-L direction) of the lower slider 60 .
  • the introduced first and second zip teeth 12 , 13 rows are ejected from the rear opening at the upward direction (U-direction) of FIG. 1 in a coupled state as being merged by being guided along the inner wall of the flange 50 F of the zip tooth guide passage 60 T.
  • the box pin 40 and the insert pin 30 are introduced from the shoulder opening of the lower slider 60 , and then, the lower slider 60 is stopped as the shoulder portion thereof being contacted to the stopper 46 which is formed at the lower end of the box pin 40 . This is the position for the lower slider 60 to be the lowermost end.
  • FIG. 6 illustrates a state that the top end part of the insert pin 30 is slid in the downward direction (D-direction) in the zip tooth guide passage 60 T of the lower slider 60 as the insert pin 30 being inserted from the shoulder opening of the upper slider 50 .
  • the insert pin 30 is moved in the downward direction (D-direction) while the flange slidingly-contacting side edge 30 F of the insert pin 30 is slidingly contacted to the flange 50 F of the upper slider 50 and the guide face 33 of the insert pin 30 is slidingly contacted to the guide column 50 D of the upper slider 50 .
  • the locking pawl 64 is contacted to the top wall 30 T at the top end part of the insert pin 30 .
  • the pawl guide sloped face 39 as gradually sloping the top wall 30 T toward the back wall 30 B side to gradually decrease thickness of the insert pin 30 is formed at the top end part of the insert pin 30 and the locking pawl 64 is contacted to the pawl guide sloped face 39 .
  • the insert pin 30 When the insert pin 30 is further inserted in the downward direction (D-direction) in a state that the locking pawl 64 is contacted to the pawl guide sloped face 39 , the locking pawl 64 is retracted toward the top face side (T-direction) while the locking pawl 64 is slid on the pawl guide face 39 of the insert pin 30 (see FIG. 7 ). Accordingly, the top end part of the insert pin 30 can pass through the section of the lower slider 60 where the locking pawl 64 is protruded and the insert pin 30 can be inserted further in the downward direction (D-direction).
  • the top end of the insert pin 30 having the pawl guide sloped face 39 is formed as being deviated to the back wall 30 B side against the center line of the insert pin 30 in the top-back direction. Further, the top end of the insert pin 30 is located at the back face side (B-direction) from the protruded end of the locking pawl 64 in a state that the locking pawl 64 is protruded to the zip tooth guide passage 60 T.
  • the pawl guide sloped face 39 is formed continuously to a section where the first sloped section 30 E is formed. That is, the pawl guide sloped face 39 is formed to cross over the extension line EL and is arranged at the top face side of the first sloped section 30 E which crosses over the extension line EL. Accordingly, the surface at the top end part of the insert pin 30 is shaped spherical in combination with the pawl guide sloped face 39 and the curved face of the first sloped section 30 E.
  • the locking pawl 64 of the lower slider 60 can be guided to the top face side (T-direction) as being reliably contacted to the pawl guide sloped face 39 and the locking pawl 64 can be stably retracted.
  • the first sloped section 30 E at the box pin slidingly-contacting side edge 30 C side of the top end part of the insert pin 30 is faced to the guide column 60 D of the lower slider 60 as illustrated in FIGS. 8 and 9 .
  • the flange slidingly-contacting side edge 30 F of the insert pin 30 is contacted to the flange 50 F of the upper slider 50 .
  • the box pin slidingly-contacting side edge 30 C of the insert pin 30 is contacted to the opposing side edge 40 C of the box pin 40 and is faced to the guide column 60 D of the lower slider 60 as being slightly apart from the guide column 60 D.
  • the box pin slidingly-contacting side edge 30 C of the insert pin 30 may be contacted to the guide column 60 D of the lower slider 60 .
  • a part of the box pin slidingly-contacting side edge 30 C of the insert pin 30 being closest to the guide column 60 D of the lower slider 60 is defined as a close point CP.
  • the facing area denotes the curve-shaped area of the box pin slidingly-contacting side edge 30 C of the insert pin 30 to be faced to the guide column 60 D of the lower slider 60 when the insert pin 30 is to be inserted into the zip tooth guide passages 50 T, 60 T of the upper slider 50 and the lower slider 60 .
  • the facing area denotes an area of the box pin slidingly-contacting side edge 30 C from a contact point thereof with the opposing side edge 40 C toward the top end of the insert pin 30 when the box pin slidingly-contacting side edge 300 is in a state that the flange slidingly-contacting side edge 30 F of the insert pin 30 is contacted to the flange 50 F of the upper slider 50 and the box pin slidingly-contacting side edge 30 C is contacted to the opposing side edge 40 C as the insert pin 30 being inserted as illustrated in FIG. 8 .
  • opposing or facing between the box pin slidingly-contacting side edge 30 C and the guide column 60 D denotes that the face of the box pin slidingly-contacting side edge 30 C of the insert pin 30 and the wall face in the top-back direction (T-B direction) of the guide column 60 D are mutually faced not denoting a case that the faces are at a right angle.
  • the insert pin 30 and the guide column 60 D are mutually faced in a state of being apart. However, the both may be mutually contacted.
  • the close point CP in the embodiment illustrated in FIGS. 8 and 9 is located closer to the box pin 40 side than the intersection point ND.
  • the first sloped section 30 E of the box pin slidingly-contacting side edge 30 C at the top end part side of the insert pin 30 is formed at the sloped face (i.e., the curved face) sloped in the direction being apart from the box pin 40 side toward the top end part of the insert pin 30 . That is, the top end part of the insert pin 30 is formed at the sloped face which is gradually sloped to the flange slidingly-contacting side edge 30 F side toward the top end part. Then, the sloped face is formed as defining positional relation against the guide column 60 D so that the sloped face becomes the facing area which is faced to the guide column 60 D of the lower slider 60 .
  • the sloped face of the first sloped section 30 E is formed to be a shape sloped at an angle being apart from the guide column 60 D of the lower slider 60 in a state that the flange slidingly-contacting side edge 30 F of the insert pin 30 is slidingly contacted to the flange 50 F of the upper slider 50 and the box pin slidingly-contacting side edge 30 C of the insert pin 30 is slidingly contacted to the opposing side edge 40 C of the box pin 40 .
  • the sloped face of the first sloped section 30 E may be formed to be a shape sloped at an angle to be contacted to the side face of the guide column 60 D at the insert pin side.
  • insert pin 30 having the first sloped section 30 E it is possible to prevent the top end of the insert pin 30 from being contacted to the guide column 60 D of the lower slider 60 , and further, to prevent the facing area of the insert pin 30 from being contacted to the guide column 60 D. Accordingly, insert pin insertion operation can be smoothly performed.
  • the insert pin 30 is structured so that distance (i.e., length) between the contact point of the box pin slidingly-contacting side edge 30 C with the box pin 40 and the intersection point ND as being intersected with the extension line EL of the box pin slidingly-contacting side edge 30 C is larger than distance (i.e., length) between the contact point and the tip of the guide column 60 D of the lower slider 60 .
  • the side face of the first sloped section 30 E of the insert pin 30 is formed into a continuously curved shape. Accordingly, it is possible to reliably avoid contacting of the insert pin 30 with the guide column 60 D of the lower slider 60 and insert pin insertion operation can be performed more reliably.
  • the second sloped section 30 G formed at the flange slidingly-contacting side edge 30 F side of the insert pin 30 is formed to have more gradual sloped angle variation than that of the first sloped section 30 E as described above. Accordingly, the second sloped section 30 G of the insert pin 30 is not contacted to the flange 60 F of the lower slider 60 when the insert pin 30 is inserted.
  • the insert pin 30 when the insert pin 30 is inserted as being slightly rotated at the time of insertion of the insert pin 30 from the shoulder opening of the upper slider 50 , for example, there may be a case that the box pin slidingly-contacting side edge 30 C of the insert pin 30 is not slidingly contacted to the opposing side edge 40 C of the box pin 40 even with sliding contact of the flange slidingly-contacting side edge 30 F of the insert pin 30 with the flange 50 F of the upper slider 50 . In this case, similarly to the related art, it is possible to smoothly perform insert pin insertion operation as avoiding collision of the top end of the insert pin 30 with the guide column 60 D of the lower slider 60 .
  • the insert pin 30 when the insert pin 30 is further inserted in the downward direction (O-direction) from the state of FIGS. 8 and 9 , the insert pin 30 can be smoothly inserted to the lowermost end as illustrated in FIG. 10 with gradual rotation of the insert pin 30 to be parallel to the box pin 40 .
  • positioning of the insert pin 30 at the lowermost end can be performed owing to contact of the first engaging portion 34 (see FIG. 3 ) of the insert pin 30 with the second engaging portion 44 (see FIG. 3 ) of the box pin 40 .
  • the insert pin 30 being parallel to the box pin 40 denotes that the planar section of the box pin slidingly-contacting side edge 30 C of the insert pin 30 or the planar section of the flange slidingly-contacting side edge 30 F and the opposing side edge 40 C of the box pin 40 are parallel to each other.
  • the insert pin 30 can be stably inserted to the lowermost end position as reliably avoiding collision of the top end of the insert pin 30 with the guide column 60 D of the lower slider 60 even when insert pin insertion is performed at an angle to cause collision of the insert pin top end with the guide column of the lower slider in the related art.
  • the top end part of the insert pin 30 and the top end part of the box pin 40 of the reverse opening slide fastener 10 are to be approximately at the same position in the longitudinal direction of the reverse opening slide fastener 10 .
  • the top end of the insert pin 30 is located at a position being lower than the tip (i.e., the tip at the rear opening side) in the upward direction (U-direction) of the guide column 60 D of the lower slider 60 by an amount of dimension DP to the insert pin lower end position in the downward direction (D-direction).
  • the top end of the insert pin 30 is located in the downward direction (D-direction) below the guide column 60 D of the lower slider 60 , it becomes easy to orient the top end part of the inert pin 30 in a direction toward the shoulder opening of the lower slider 60 at the time when the lower slider 60 is slid from the lowermost end toward the upward direction (U-direction). Accordingly, opening operation can be smoothly performed.
  • the top end part of the insert pin 30 and the top end part of the box pin 40 are concealed in the zip tooth guide passage 60 T of the lower slider 60 .
  • Zip teeth made of metal or resin can be used as the first and second zip teeth 12 , 13 of the above mentioned slide fastener 10 . Further, it is also possible that coil-shaped zip teeth obtained by winding a line-shaped monofilament into a coil shape can be sewn to a fastener tape. Zip teeth which can be usually used for a slide fastener can be adopted in the invention.
  • the invention can be applied to a reverse opening slide fastener capable of performing upper opening and reverse opening and capable of separating and fitting by insertion.
  • a reverse opening slide fastener capable of performing upper opening and reverse opening and capable of separating and fitting by insertion.
  • Such a reverse opening slide fastener can be utilized for right front and left front bodies of a jacket and a long coat, sportswear and others.

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  • Slide Fasteners (AREA)
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US13/394,950 2009-09-11 2009-09-11 Reverse Opening Slide Fastener Abandoned US20120167354A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/065943 WO2011030448A1 (ja) 2009-09-11 2009-09-11 逆開きスライドファスナー

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US (1) US20120167354A1 (zh)
EP (1) EP2476332B1 (zh)
JP (1) JP5430664B2 (zh)
KR (1) KR101356242B1 (zh)
CN (1) CN102481039B (zh)
ES (1) ES2621201T3 (zh)
HK (1) HK1167582A1 (zh)
TW (1) TWI403285B (zh)
WO (1) WO2011030448A1 (zh)

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US20110197402A1 (en) * 2008-12-26 2011-08-18 Ykk Corporation Slide Fastener with Separable Bottom End Stop
US20120260468A1 (en) * 2009-12-25 2012-10-18 Jiro Nozaki Reverse Opening Slide Fastener
US20130074292A1 (en) * 2010-06-23 2013-03-28 Ykk Corporation Slide Fastener
US20140020217A1 (en) * 2011-03-30 2014-01-23 Ykk Corporation Slide Fastener with Separable Bottom End Stop
US10016025B1 (en) * 2017-05-24 2018-07-10 Chung Chwan Enterprise Co., Ltd. Zipper head assembly structure and pin-shaped assembly thereof
USD887895S1 (en) * 2018-08-31 2020-06-23 Ykk Corporation Insert pin for slide fastener
US20230068548A1 (en) * 2019-10-10 2023-03-02 Ykk Corporation Metallic element and slide fastener
US20240000199A1 (en) * 2020-10-28 2024-01-04 Ykk Corporation Separable bottom end stop for slide fastener
US11877629B1 (en) * 2023-02-04 2024-01-23 Kcc Zipper Co., Ltd. Bottom stop device of double-open end zipper and assembly structure thereof
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US8959727B2 (en) * 2008-12-26 2015-02-24 Ykk Corporation Slide fastener with separable bottom end stop
US20110197402A1 (en) * 2008-12-26 2011-08-18 Ykk Corporation Slide Fastener with Separable Bottom End Stop
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US20230068548A1 (en) * 2019-10-10 2023-03-02 Ykk Corporation Metallic element and slide fastener
US20240000199A1 (en) * 2020-10-28 2024-01-04 Ykk Corporation Separable bottom end stop for slide fastener
US20240090628A1 (en) * 2021-02-12 2024-03-21 Ykk Corporation Slide fastener
US11877629B1 (en) * 2023-02-04 2024-01-23 Kcc Zipper Co., Ltd. Bottom stop device of double-open end zipper and assembly structure thereof

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TW201108963A (en) 2011-03-16
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EP2476332A1 (en) 2012-07-18
CN102481039B (zh) 2014-10-29
KR20120031237A (ko) 2012-03-30
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JPWO2011030448A1 (ja) 2013-02-04
JP5430664B2 (ja) 2014-03-05
KR101356242B1 (ko) 2014-01-28
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WO2011030448A1 (ja) 2011-03-17
CN102481039A (zh) 2012-05-30

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