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US20160324273A1 - Slide Fastener - Google Patents

Slide Fastener Download PDF

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Publication number
US20160324273A1
US20160324273A1 US15/104,267 US201415104267A US2016324273A1 US 20160324273 A1 US20160324273 A1 US 20160324273A1 US 201415104267 A US201415104267 A US 201415104267A US 2016324273 A1 US2016324273 A1 US 2016324273A1
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United States
Prior art keywords
elements
head portion
fastener
slider
engaged
Prior art date
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Abandoned
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US15/104,267
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English (en)
Inventor
Yoshihiro Hahizume
Yasuaki Funo
Koji Takata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YKK Corp
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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: FUNO, YASUAKI, HASHIZUME, YOSHIHIRO, TAKATA, KOJI
Publication of US20160324273A1 publication Critical patent/US20160324273A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/02—Slide fasteners with a series of separate interlocking members secured to each stringer tape
    • A44B19/08—Stringers arranged side-by-side when fastened, e.g. at least partially superposed stringers
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/02—Slide fasteners with a series of separate interlocking members secured to each stringer tape
    • A44B19/04—Stringers arranged edge-to-edge when fastened, e.g. abutting stringers
    • A44B19/06—Stringers arranged edge-to-edge when fastened, e.g. abutting stringers with substantially rectangular members having interlocking projections and pieces
    • 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

Definitions

  • the present invention relates to a slide fastener in which a fastener chain has continuous element rows fixed to fastener tapes and is configured to be engaged and disengaged by a slider of a type, which causes engagement to be occurred in an upward and downward direction.
  • a slide fastener in which an element guide passage of a slider has right and left shoulder mouths stepwise arranged in a front and back direction and configured, respectively, to allow a first element row and a second element row in a disengaged state to enter and exit therethrough, and a rear mouth configured to allows the first and second element rows in an engaged state to enter and exit therethrough, and an extension length of a front latch portion in the first element row is set to be shorter than an extension length of a front latch portion of the second element row.
  • the first element row having a shorter extension length and the second element row having a longer extension length are introduced from the front side in such a manner that the rows are stepped relative to each other in the front and rear direction, and then the right and left element rows are obliquely merged with each other in the front and back direction and the right and left direction, thereby allowing the element rows to be easily engaged with each other.
  • the element rows are obliquely separated from each other in the front and back direction and the right and left direction, thereby allowing the element rows to be easily disengaged from each other.
  • Patent Document 1 WO 2010/082291
  • An object of the present invention is to provide a slide fastener, in which continuous element rows can be easily engaged with and disengaged from each other by a slider of a type, which causes engagement to be occurred in an upward and downward direction.
  • a fastener chain including a pair of fastener stringers having a pair of fastener tapes respectively having upper surfaces and lower surfaces opposite to the upper surfaces and element rows respectively constituted of a plurality of elements fixed to respective edge portions of the pair of fastener tapes at a predetermined pitch, the fastener chain in which the element rows are arranged so as to oppose each other;
  • a slider movable to engage and disengage the element rows with and from each other and including an upper blade arranged at a side of upper surfaces, a lower blade arranged at a side of the lower surfaces, a front end wall connecting the upper blade with the lower blade and having a first front mouth for allowing the first element row to enter and exit therethrough and a second front mouth stepwise provided at the side of the lower surfaces relative to the first front mouth, for allowing the second element row to enter and exit therethrough, and one rear mouth for allowing the pair of element rows in an engaged state to enter and exit therethrough,
  • each of the elements has a base portion fixed to the respective fastener tapes and a head portion protruding from the base portion and configured to be engaged with the opposing elements
  • each of the elements has a first head portion arranged at the side of the upper surfaces and a second head portion arranged at the side of the lower surfaces of the fastener tapes, and
  • first head portion is formed to be offset from the second head portion in the first direction.
  • each of the elements has a neck portion located between the base portion and the head portion and having a width smaller than those of the base portion and the head portion,
  • each of the elements has a first neck portion arranged at the side of the upper surfaces and a second neck portion arranged at the side of the lower surfaces of the fastener tapes, and
  • the first neck portion is formed to be offset from the second neck portion in the first direction.
  • each of the elements includes:
  • the first protrusion portion of the elements located at one side is engaged with the second recess portion of the opposing elements
  • the first recess portion of the elements located at the one side is engaged with the second protrusion portion of the opposing elements.
  • An offset amount by which the first head portion is offset from the second head portion is 0.2 mm or greater and 0.3 mm or smaller
  • a ratio of the offset amount with respect to a dimension of the head portion of the elements along the first direction is 9% or greater and 15% or smaller.
  • a slide fastener in which continuous element rows can be easily engaged with and disengaged from each other by a slider of a type, which causes engagement to be occurred in an upward and downward direction, can be provided.
  • FIG. 1 is a front view showing a slide fastener constructed using a fastener chain according to one embodiment of the present invention.
  • FIG. 2 is a view showing a disengaged state of the fastener chain according to one embodiment of the present invention.
  • FIG. 3 is a sectional view taken along a line A-A in FIG. 2 .
  • FIG. 4 is a sectional view taken along a line B-B in FIG. 2 .
  • FIG. 5 is a view showing an engaged state of elements of the fastener chain according to one embodiment of the present invention.
  • FIG. 6 is a sectional view taken along a line C-C in FIG. 5 .
  • FIG. 7 is a perspective view of a slider of a slide fastener according to one embodiment of the present invention.
  • FIG. 8 is a side view of a slider of the slide fastener according to one embodiment of the present invention.
  • FIG. 9 is a views showing a state where the slide fastener of the present embodiment is being disengaged by the slider.
  • FIG. 10 is a view showing a state of a reference example where a slide fastener, which is reversed front to back and thus is different from the present embodiment, is being disengaged by a slider.
  • FIG. 11 is a view showing a state where the slide fastener of the present embodiment is being engaged by the slider.
  • FIG. 12 is a view showing a state of a reference example where a slide fastener, which is reversed front to back and thus is different from the present embodiment, is being engaged by a slider.
  • FIG. 13 is a view showing dimensions of an element 30 of the present embodiment.
  • FIG. 14 is a graph showing crosswise strength against offset amount in Table 1.
  • FIG. 15 is a graph showing puncture strength against offset amount in Table 1.
  • FIG. 16 is a graph showing sliding resistance upon disengaging against offset amount in Table 2.
  • FIG. 17 is a graph showing sliding resistance upon engaging against offset amount in Table 3.
  • FIG. 1 is a front view showing a slide fastener constructed using a fastener chain according to one embodiment of the present invention.
  • the slide fastener 1 as explained in the present embodiment has a pair of right and left fastener chains 10 including a first fastener stringer 11 , in which a first element row 31 constituted of a plurality of first elements 301 is attached to a first fastener tape 21 , and a second fastener stringer 12 , in which a second element row 32 constituted of a plurality of second elements 302 is attached to a second fastener tape 22 , and a slider 6 configured to be slid along the right and left continuous element rows 31 and 32 and thus to engage and disengage the elements 301 and 302 of the continuous element rows 31 and 32 with and from each other.
  • a direction in which the continuous element rows are provided along a longitudinal direction of the fastener chain 10 is referred to as a front and rear direction
  • a direction in which the slider 6 is slid to engage the right and left continuous element rows 31 and 32 with each other is referred to as a front direction
  • a direction in which the slider 6 is slide to disengage the element rows from each other is referred to as a rear direction
  • a right and left direction refers to a direction horizontal to a plane of the fastener chain 10 and perpendicular to the front and rear direction.
  • a direction perpendicular to a plane defined by the front and rear direction and the right and left direction is referred to as a front and back direction
  • a side of the fastener chain 6 on which a pull tab of the slider 6 exists is referred to as a front surface
  • a side opposite thereto is referred to as a back surface.
  • the front and back direction can be also referred to as an upward and downward direction, and correspondingly, the front surface can be also referred to as an upper surface and the back surface can be also referred to as a lower surface.
  • front direction and the rear direction may be interchangeably referred to as a first direction and a second direction, respectively.
  • the second direction is a direction opposite to the first direction.
  • front surface and the back surface may be interchangeably referred to as a first surface and a second surface, respectively.
  • the fastener chain 10 is constituted of a pair of fastener stringers 11 and 12 .
  • the fastener stringers 11 and 12 have a pair of fastener tapes 20 each having a upper surface 21 a and a lower surface 21 b opposite to the upper surface 21 a , and element rows 31 and 32 respectively constituted of a plurality of elements 301 and 302 fixed to respective edge portions 23 of the pair of fastener tapes 20 at a predetermined pitch.
  • the element rows 31 and 32 are arranged to oppose each other.
  • a top stop is fixed to an upper end of each of continuous element rows 31 and 32 and one bottom stop, not shown, is fixed to lower ends of the continuous element rows 31 and 32 .
  • an opener such as a separable pin and a retainer pin, may be fixed.
  • FIG. 2 is a view showing a disengaged state of the fastener chain according to one embodiment of the present invention.
  • FIG. 3 is a sectional view taken along a line A-A in FIG. 2 .
  • FIG. 4 is a sectional view taken along a line B-B in FIG. 2 .
  • the first elements 301 have a head portion 301 a located at the most outward side remotest from a first edge portion 231 of the first fastener tape 21 in the right and left direction of the fastener chain 10 , a neck portion 301 b located inward relative to the head portion 301 a (close to the first edge portion 231 ) but outward relative to the first edge portion 231 , and a base portion 301 c located inward relative to the neck portion 301 b and sandwiching the first edge portion 231 .
  • the first elements 301 have a first half portion 311 arranged at a side of the upper surface 21 a of the first fastener tape 21 and a second half portion 321 arranged at a side of the lower surface 21 b of the first fastener tape 21 .
  • the first half portion 311 and the second half portion 321 are integrally formed with each other to sandwich the first fastener tape 21 from upper and lower sides thereof
  • the first half portion 311 has a first base portion 311 c in contact with the upper surface 21 a of the first fastener tape 21 , a first neck portion 311 b protruding from the first base portion 311 c and extending toward the outside of the first fastener tape 21 , and a first head portion 311 a formed on a distal end of the first neck portion 311 b .
  • the second half portion 321 has a second base portion 321 c in contact with the lower surface 21 b of the first fastener tape 21 , a second neck portion 321 b protruding from the second base portion 321 c and extending toward the outside of the first fastener tape 21 , and a second head portion 321 a formed on a distal end of the second neck portion 321 b .
  • the first base portion 311 c and the second base portion 321 c sandwich the first edge portion 231 from the upward and downward directions.
  • the first elements 301 of the present embodiment are formed in a state where the first half portion 311 is offset relative to the second half portion 321 in the front direction or a state where the second half portion 321 is offset relative to the first half portion 311 in the rear direction.
  • a first protrusion portion 331 a is formed in front of the first head portion 311 a of the first half portion 311
  • a first recess portion 331 b is formed in front of the first neck portion 311 b
  • a first stepped portion 331 c is formed in front of the first base portion 311 c .
  • a second protrusion portion 341 a is formed in the rear of the second head portion 321 a of the second half portion 321
  • a second recess portion 341 b is formed in the rear of the second neck portion 321 b
  • a second stepped portion 341 c is formed in the rear of the second base portion 321 c.
  • the second fastener stringer 12 of the present embodiment is formed to be symmetric to the first fastener stringer 11 in the right and left direction, and components thereof are the same as those of the first fastener stringer 11 .
  • the second elements 302 have a head portion 302 a located at the most outward side remotest from a second edge portion 232 of the second fastener tape 22 in the right and left direction of the fastener chain 10 , a neck portion 302 b located inward relative to the head portion 302 a (close to the second edge portion 232 ) but outward relative to the second edge portion 232 , and a base portion 302 c located inward relative to the neck portion 302 b and sandwiching the second edge portion 231 .
  • the second elements 302 have a first half portion 312 arranged at the side of the upper surface 21 a of the second fastener tape 22 and a second half portion 322 arranged at the side of the lower surface 21 b of the second fastener tape 22 .
  • the first half portion 312 and the second half portion 322 are integrally formed with each other to sandwich the second fastener tape 22 from upper and lower sides thereof
  • the first half portion 312 has a first base portion 312 c in contact with the upper surface 21 a of the second fastener tape 22 , a first neck portion 312 b protruding from the first base portion 312 c and extending toward the outside of the second fastener tape 22 , and a first head portion 312 a formed on a distal end of the second neck portion 312 b .
  • the second half portion 322 has a second base portion 322 c in contact with the lower surface 21 b of the second fastener tape 22 , a second neck portion 322 b protruding from the second base portion 322 c and extending toward the outside of the second fastener tape 22 , and a second head portion 322 a formed on a distal end of the second neck portion 322 b .
  • the first base portion 312 c and the second base portion 322 c sandwich the second edge portion 232 from the upward and downward directions.
  • the second elements 302 of the present embodiment are formed in a state where the first half portion 312 is offset in the front direction or a state where the second half portion 322 is offset in the rear direction.
  • a first protrusion portion 332 a is formed in front of a side of the first half portion 312 opposite to the first head portion 312 a
  • a first recess portion 332 b is formed in front of a side thereof opposite to the first neck portion 312 b
  • a first stepped portion 332 c is formed in front of a side thereof opposite to the first base portion 312 c .
  • a second protrusion portion 342 a is formed in the rear of a side of the second half portion 312 opposite to the second head portion 322 a
  • a second recess portion 342 b is formed in the rear of a side thereof opposite to the second neck portion 322 b
  • a second stepped portion 342 c is formed in the rear of a side thereof opposite to the second base portion 322 c.
  • FIG. 5 is a view showing an engaged state of the fastener chain according to one embodiment of the present invention.
  • FIG. 6 is a sectional view taken along a line C-C in FIG. 5 .
  • the head portion 301 a of the first element row 31 and the neck portion 302 b of the second element row 32 which are adjacent to each other in the front and rear direction, are engaged with each other, and the neck portion 301 b of the first element row 31 and the head portion 302 a of the second element row 32 , which are adjacent to each other in the front and rear direction, are engaged with each other.
  • the first protrusion portion 331 a of the first element 301 opposes to the second recess portion 342 b of the second element 302 and the second protrusion portion 341 a of the first element 301 opposes the first recess portion 332 b of the second element 302
  • the first recess portion 331 b of the first element 301 opposes the second protrusion portion 342 a of the second element 302
  • the second recess portion 341 b of the first element 301 opposes the first protrusion portion 332 a of the second element 302 .
  • first element row 31 and the second element row 32 opposing each other can be exactly engaged with each other.
  • FIG. 7 is a perspective view of a slider of a slide fastener according to one embodiment of the present invention.
  • FIG. 8 is a side view of the slider of the slide fastener according to one embodiment of the present invention.
  • the slider 6 includes, as a basis structure, an upper blade 61 , a lower blade 62 , a first side wall 64 having a first guide groove 63 for guiding the first fastener tape 21 shown in FIG. 1 , a second side wall 66 having a second guide groove 65 for guiding the second fastener tape 2 , a front end wall 69 connecting the upper blade 61 with the lower blade 62 and provided with a first front mouth 67 for allowing the first element row 31 in the disengaged state shown in FIG.
  • a pull tab attaching portion 75 is provided on an upper surface of the upper blade 61 .
  • the pull tab attaching portion 75 has a gate shape of extending in a sliding direction in a cantilever shape with one end thereof fixed, the invention is not limited to such a configuration, and thus a pull tab attaching portion having any other shapes as known to those skilled in the art may be employed.
  • a pull tab having an annular portion at one end thereof may be prepared and then the pull tab may be pivotally attached to the pull tab attaching portion 75 via the annular portion.
  • a distal end of the pull tab attaching portion 75 may be crimped downward (i.e., a direction of approaching the distal end to the upper blade), thereby preventing a pull tab, not shown, from being easily separated from the pull tab attaching portion 75 .
  • two front mouths 67 and 68 and one rear mouth 70 are connected by a generally Y-shaped element guide passage 80 formed inside the slider to be furcated in the upward and downward direction along the guide grooves 63 and 65 , respectively.
  • the element guide passage 80 is defined by an inner surface of the upper blade 61 , an inner surface of the lower blade 62 , inner surfaces of right and left side walls 64 and 66 , and an element guide post 71 .
  • the inner surface of the upper blade 61 defining the element guide passage 80 has an inclined surface 81 inclined downward from the first front mouth 67 on the front surface side and a horizontal surface 83 connected to the inclined surface 81 and configured to cause the element rows to be engaged with each other.
  • the inner surface of the lower blade 62 has an inclined surface 82 inclined upward from the second front mouth 68 on the back surface side and a horizontal surface 84 connected to the inclined surface 82 and configured to cause the element rows to be engaged with each other.
  • a rear end of each of horizontal surfaces 83 and 84 is connected to the rear mouth 70 .
  • Each of connection portions between the inclined surfaces 81 and 82 and the horizontal surfaces 83 and 84 is preferably formed in a curved line shape in order to allow a smooth movement of the element rows.
  • the guide grooves 63 and 65 have an inclined portion and a horizontal portion corresponding to shapes of the inner surface of the upper blade 61 and the inner surface of the lower blade 62 , and connection portions therebetween are preferably formed in a curved line shape in order to allow a smooth movement of the fastener tapes.
  • the first guide groove 63 formed in the first side wall 64 has a front end connected to the first front mouth 67 on the front surface side, an inclined portion connected to the front end and inclined downward, a horizontal portion connected to the inclined portion and configured to cause the element rows to be engaged with each other and a rear end connected to the horizontal portion and also connected to the rear mouth 70 , and the inclined portion and the horizontal portion are formed to be parallel to the inner surface of the upper blade 61 .
  • the second guide groove 65 formed in the second side wall 66 has a front end connected to the second front mouth 68 on the back surface side, an inclined portion connected to the front end and inclined forward, a horizontal portion connected to the inclined portion and configured to cause the element rows to be engaged with each other and a rear end connected to the horizontal portion and also connected to the rear mouth 70 , and the inclined portion and the horizontal portion are formed to be parallel to the inner surface of the lower blade 62 .
  • FIG. 9 is a views showing a state where the slide fastener of the present embodiment is being disengaged by the slider.
  • each of two front mouths 67 and 68 exists to straddle the center line in the right and left direction, and thus the two front mouths 67 and 68 create an overlapped portion in the right and left direction. Accordingly, the element rows 31 and 32 are disengaged from each other in the front and back direction.
  • the first elements 301 directed toward the first front mount 67 on the front surface side are pulled in a direction of an arrow A 2 as shown in FIG. 9 .
  • the second protrusion portion 341 a of the first element 301 and the first recess portion 332 b of the second element 302 come in contact with each other, and the second recess portion 341 b of the first element 301 and the first protrusion portion 332 a of the second element 302 , not shown, come in contact with each other.
  • the first protrusion portion 332 a of the first element 301 and the second recess portion 342 b of the second element 302 are spaced from each other, and the first recess portion 331 b of the first element 301 and the second protrusion portion 342 a of the second element 302 , not shown, are spaced from each other.
  • the first element 301 In order to cause the first element 301 to be spaced from the second element 302 , a movement thereof in a direction of an arrow A 3 is required.
  • the first element 301 is pulled in the direction of the arrow A 2 after the second protrusion portion 341 a and the second recess portion 341 b of the first element 301 come in contact with the first recess portion 332 b and the first protrusion portion 332 a of the second element 302 , respectively.
  • the first element 301 is inclined in the direction of the arrow A 3 to have an angle allowing the first element 301 to be easily slide relative to the second element 302 .
  • a force along the arrow A 2 exerted on the first element 301 and a movement thereof in the direction of the arrow A 3 shown in FIG. 9 have the same rotating direction, and accordingly the first element 301 can be easily moved in the direction of the arrow A 3 by a force in the direction A 1 of pulling the slider 6 .
  • the first elements 301 and the second elements 302 can be easily spaced from each other.
  • FIG. 10 is a view showing a state of a reference example where a slide fastener, which is reversed front to back and thus is different from the present embodiment, is being disengaged by a slider.
  • FIG. 11 is a view showing a state where the slide fastener of the present embodiment is being engaged by the slider.
  • the first elements 301 in the disengaged state enter through the first front mouth 67 on the front surface side and the second elements 302 enter through the second front mouth 68 on the back surface side.
  • the first elements 301 and the second elements 302 are guided by the element guide passage 80 , the first elements 301 and the second elements 302 are engaged in front of the rear mouth 70 and then are discharged through the rear mouth 70 .
  • the second elements 302 Upon engaging, the second elements 302 , which have entered through the second front mouth 68 on the back surface side and then passed over the element guide post 71 , are pulled in a direction of an arrow B 2 as shown in FIG. 11 . Then, the first protrusion portion 331 a of the first element 301 and the second recess portion 342 b of the second element 302 come in contact with each other and the first recess portion 331 b of the first element 301 and the second protrusion portion 342 a of the second element 302 , not shown, come in contact with each other, thereby causing the second element 302 to be moved in a direction of an arrow B 3 .
  • a force along the arrow B 2 exerted on the second element 302 and a movement thereof in the direction of the arrow B 3 shown in FIG. 11 have the same rotating direction, and accordingly the second element 302 can be easily moved in the direction of the arrow B 3 by a force in the direction B 1 of pulling the slider 6 .
  • the first elements 301 and the second elements 302 can be easily engaged with each other.
  • FIG. 12 is a view showing a state of a reference example where a slide fastener, which is reversed front to back and thus is different from the present embodiment, is being engaged by a slider.
  • the offset amount a means a dimension by which the first head portion 311 a is offset from the second head portion 321 a , and also a dimension by which the first neck portion ( 311 b ) is offset from the second neck portion ( 321 b ).
  • FIG. 13 is a view showing dimensions of an element 30 of the present embodiment. Meanwhile, in the following, dimensions of the first element 301 will be described by way of example, but the same can be also applied to the second element 302 .
  • the largest dimension of the head portion 301 a of the first element 301 in the front and rear direction is indicated as L
  • the offset amount is indicated as a
  • the smallest dimension of the neck portion 301 b in the front and rear direction is indicated as b.
  • the dimension L in the front and rear direction can be interchangeably referred to as a dimension along a first direction or a dimension along a second direction.
  • the first head portion 311 a of the first half portion 311 and the second head portion 321 a of the second half portion 321 have the same dimensions.
  • the first neck portion 311 b and the second neck portion 321 b have the same dimensions.
  • the offset amount a between the first half portion 311 and the second half portion 321 of the first element 301 is a dimension of the first protrusion portion 331 a and the second protrusion portion 341 a of the first element 301 in the front and rear direction, if stated in another way. Meanwhile, the offset amount a is the same as a dimension of the first recess portion 331 b and the second recess portion 341 b.
  • a dimension from a front end edge of the first head portion 311 a of the first half portion 311 to a front end edge of the second head portion 321 a of the second half portion 321 , or a dimension from a rear end edge of the second head portion 321 a of the second half portion 321 to a rear end edge of the first head portion 311 a of the first half portion 311 is measured.
  • the offset amount a may be obtained by measuring a dimension from a front end edge of the first neck portion 311 b of the first half portion 311 to a front end edge of the second neck portion 321 b of the second half portion 321 , or measuring a dimension from a rear end edge of the second neck portion 321 b of the second half portion 321 to a rear end edge of the first neck portion 311 b of the first half portion 311 .
  • Table 1 shows results of strength tests of the chain performed with regard to two items, i.e., crosswise strength and puncture strength.
  • FIG. 14 is a graph showing crosswise strength against offset amount in Table 1.
  • FIG. 15 is a graph showing puncture strength against offset amount in Table 1.
  • the crosswise strength means a magnitude of resistance when right and left fastener tapes are pulled at a predetermined speed in right and left directions opposite to each other in a state where the fastener chain is engaged.
  • the puncture strength means a magnitude of resistance when elements are vertically pushed up relative to the tape surface in a state where the fastener chain is engaged.
  • the units are [N]. Five fastener chains for each of crosswise strength and puncture strength are prepared, and a magnitude of resistance for each is recorded and a maximum value (max), a minimum value (min) and an average (Ave) are shown.
  • the fastener chains have an average of crosswise strength below a predetermined reference value of 400 N in cases where the offset amount is 0.1 mm and 0.4 mm. This cannot be said that the fastener chains has a sufficient strength, and accordingly, it is preferable that the offset amount a of the fastener chain satisfy the following equation (1).
  • a ratio of the offset amount a with respect to the dimension L of the head portion 301 a of the first element 301 may be prescribed. In this case, it is preferable that the ratio satisfy the following equation (2)
  • the ratio may satisfy 9.6% ⁇ a/L ⁇ 14.4%.
  • a cause of increasing the sliding resistance is that for example, in case where right and left elements are disengaged from each other inside the slider, the right and left elements are disengaged from the engaged state in a posture where the elements are inclined so that front mouths of the slider are separated from each other in the upward and downward direction.
  • the elements if a/L is greater, in order to disengage the elements from each other, the elements have to be inclined by largely changing the posture thereof, thereby increasing the sliding resistance.
  • the right and left elements in the disengaged state are changed in posture to become from the inclined state to a horizontal state, thereby increasing the sliding resistance, like upon disengaging.
  • a dimension (width) b of the neck portion of the present embodiment in the front and rear direction is set to 1.2 mm.
  • Table 2 shows sliding resistances upon disengaging of slide fasteners.
  • Table 3 shows sliding resistances upon engaging of slide fasteners.
  • FIG. 16 is a graph showing sliding resistance upon disengaging against offset amount in Table 2.
  • FIG. 17 is a graph showing sliding resistance upon engaging against offset amount in Table 3.
  • the sliding resistance upon engaging is a magnitude of resistance when a pull tab of a slider of a slide fastener is pulled and moved in a direction of engaging the slide fastener
  • the sliding resistance upon disengaging is a magnitude of resistance when the pull tab of the slider of the slide fastener is pulled and moved in a direction of disengaging the slide fastener.
  • 0.2 mm Second direction is a case where an offset amount a of elements is 0.2 mm and a first half portion 311 is offset from a second half portion 321 in the rear direction (second direction)
  • 0.2 mm First direction is a case where an offset amount a of elements is 0.2 mm and a first half portion 311 is offset from a second half portion 321 in the front direction (first direction).
  • 0.3 mm Second direction is a case where an offset amount a of elements is 0.3 mm and a first half portion 311 is offset from a second half portion 321 in the rear direction (second direction)
  • 0.3 mm First direction is a case where an offset amount a of elements is 0.3 mm and a first half portion 311 is offset from a second half portion 321 in the front direction (first direction).
  • the unit is [N].
  • Table 2 shows a magnitude of resistance of a slider when a slide fastener in an engaged state is disengaged by the slider. Five slide fasteners are prepared, and a magnitude of resistance when the slider is slid is recorded and a maximum value (max), a minimum value (min) and an average (Ave) are shown.
  • Table 3 shows a magnitude of resistance of a slider when a slide fastener in a disengaged state is engaged by the slider. Five slide fasteners are prepared, and a magnitude of resistance when the slider is slid is recorded and a maximum value (max), a minimum value (min) and an average (Ave) are shown.
  • a sliding resistance of slide fasteners in which a first half portion 311 of a first element 301 is offset from a second half portion 321 in the front direction (first direction) as shown in FIG. 13 is smaller than a sliding resistance of slide fasteners in which a first half portion 311 of a first element 301 is offset from a second half portion 321 in the rear direction (second direction).
  • the slide fastener 1 of the present embodiment includes a fastener chain 10 including a pair of fastener stringers 11 and 12 having a pair of fastener tapes 21 and 22 respectively having upper surfaces 21 a and 22 a and lower surfaces 21 b and 22 b opposite to the upper surfaces 21 a and 22 a and element rows respectively constituted of a plurality of elements 301 and 302 fixed to respective edge portions 23 of the pair of fastener tapes 21 and 22 at a predetermined pitch, in which the element rows 31 and 32 are arranged so as to oppose each other; and a slider 6 movable to engage and disengage the element rows 31 and 32 with and from each other and including an upper blade 61 arranged at a side of the upper surfaces 21 a and 22 a and configured to allow a pull tab 76 to be attached thereon, a lower blade 62 arranged at a side of the lower surfaces 21 b and 22 b , a front end wall 69 connecting the upper blade 61 with the lower blade 62 and having a
  • Each of the elements 301 and 302 has a base portion 301 c and 302 c fixed to the respective fastener tapes 2 and a head portion 301 a and 302 a protruding from the base portion 301 c and 302 c and configured to be engaged with opposing elements 301 and 302 , and the head portion 301 a and 302 a of each of the elements 301 and 302 has a first head portion 311 a and 312 a arranged at the side of the upper surfaces 21 a and 22 a , and a second head portion 321 a and 321 b arranged at the side of the respective lower surfaces 21 b and 22 b of the fastener tapes 21 and 22 .
  • the first head portion 311 a and 312 a is formed to be offset from the second head portion 321 a and 322 a in a first direction along which the slider 6 is moved when engaging the element rows 31 and 32 with each other.
  • a slide fastener in which continuous element rows 31 and 32 can be easily engaged with and disengaged from each other by a slider 6 of a type, which causes engagement to be occurred in the upward and downward direction, can be provided.
  • each of the elements 301 and 302 has a neck portion 301 b and 302 b located between the base portion 301 c and 302 c and the head portion 301 a and 302 a and having a width as a dimension in the front and rear direction smaller than those of the base portion 301 c and 302 c and the head portion 301 a and 302 a , and the neck portion 301 a and 302 a of each of the elements 301 and 302 has a first neck portion 311 b and 312 b arranged at the side of the lower surfaces 21 a and 22 a and a second neck portion 321 b and 322 b arranged at the side of the lower surfaces 21 b and 22 b of the fastener tapes 20 .
  • the first neck portion 311 b and 312 b is formed to be offset from the second neck portion 321 b and 322 b in the first direction when the element rows 31 and 32 are engaged with each other. Accordingly, a slide fastener which can be more easily and stably engaged and disengaged can be provided.
  • each of the elements 301 and 302 has a first protrusion portion 331 a and 332 a formed on a side of the first head portion 311 a and 312 a , which is located toward the respective lower surfaces 21 b and 22 b and faces the first direction, a first recess portion 331 b and 332 b formed on a side of the first neck portion 311 b and 312 b , which is located toward the respective lower surfaces 21 b and 22 b and faces the first direction, a second protrusion portion 341 a and 342 a formed on a side of the second head portion 321 a and 322 a , which is located toward the respective upper surfaces 21 a and 22 a and faces a second direction opposite to the first direction, and a second recess portion 341 b and 342 b formed on a side of the second neck portion 321 b and 322 b , which is located toward the respective upper surfaces 21 a and
  • the first protrusion portion 331 a and 332 a of the elements 301 and 302 located on one side is engaged with the second recess portion 341 b and 342 b of the opposing elements 301 and 302
  • the first recess portion 331 b and 332 b of the elements 301 and 302 located on the one side is engaged with the second protrusion portion 341 a and 342 a of the opposing elements 301 and 302 . Accordingly, a slide fastener which can be stably engaged and disengaged can be provided.
  • an offset amount a by which the first head portion 311 a and 312 a is offset from the second head portion 321 a and 322 a is 0.2 mm or greater and 0.3 mm or smaller and a ratio a/L of the offset amount a with respect to a dimension L of the head portion 301 a and 302 a of the elements 301 and 302 along the first direction is 9% or greater and 15% or smaller. Accordingly, a slide fastener 1 which strengths required for the fastener are sufficient and a sliding resistance is small can be obtained. If the ratio is smaller than 9%, sufficient strengths cannot be obtained, and if the ratio is greater than 15%, the sliding resistance is increased.

Landscapes

  • Slide Fasteners (AREA)
  • Dental Prosthetics (AREA)
US15/104,267 2013-12-19 2014-12-08 Slide Fastener Abandoned US20160324273A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013262035A JP2015116355A (ja) 2013-12-19 2013-12-19 スライドファスナー
JP2013-262035 2013-12-19
PCT/JP2014/082465 WO2015093338A1 (ja) 2013-12-19 2014-12-08 スライドファスナー

Publications (1)

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US20160324273A1 true US20160324273A1 (en) 2016-11-10

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US15/104,267 Abandoned US20160324273A1 (en) 2013-12-19 2014-12-08 Slide Fastener

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US (1) US20160324273A1 (zh)
JP (1) JP2015116355A (zh)
CN (1) CN105764371B (zh)
TW (1) TWI554225B (zh)
WO (1) WO2015093338A1 (zh)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD818394S1 (en) * 2016-06-30 2018-05-22 Ideal Fastener (Guangdong) Industries Ltd. Zipper tooth
US10292462B2 (en) * 2016-07-21 2019-05-21 Florin Morar Fastening device
US20190216179A1 (en) * 2016-07-21 2019-07-18 Florin Morar Fastening Device
US11058188B2 (en) * 2018-07-23 2021-07-13 Raj Dhadwal Single-finger zippers
EP4091494A1 (fr) * 2021-05-18 2022-11-23 Hermes Sellier Dispositif d'ouverture et de fermeture, du type de fermeture a glissiere, pour article notamment de maroquinerie
USD1080456S1 (en) * 2022-11-04 2025-06-24 Ykk Corporation Chain for slide fastener
USD1088955S1 (en) * 2023-04-13 2025-08-19 Ykk Corporation Chain for slide fastener

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA126735C2 (uk) * 2021-11-08 2023-01-11 Олександр Павлович Петренко Застібка-блискавка
UA128686C2 (uk) * 2022-10-19 2024-09-25 Олександр Павлович Петренко Застібка-блискавка

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701401A (en) * 1952-06-14 1955-02-08 Talon Inc End stop for slide fasteners
JPS514824Y1 (zh) * 1970-12-30 1976-02-10
JPS5361204U (zh) * 1976-10-23 1978-05-24
EP2614742B1 (en) * 2009-01-13 2017-09-06 YKK Corporation Slide fastener
TWM385256U (en) * 2010-03-23 2010-08-01 jia-quan Chen Structure of water-repelling zipper
JP5766789B2 (ja) * 2011-04-18 2015-08-19 Ykk株式会社 スライドファスナー用の上下噛み合わせ式スライダー

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD818394S1 (en) * 2016-06-30 2018-05-22 Ideal Fastener (Guangdong) Industries Ltd. Zipper tooth
US10292462B2 (en) * 2016-07-21 2019-05-21 Florin Morar Fastening device
US20190216179A1 (en) * 2016-07-21 2019-07-18 Florin Morar Fastening Device
US10932531B2 (en) * 2016-07-21 2021-03-02 Florin Morar Fastening device
US11058188B2 (en) * 2018-07-23 2021-07-13 Raj Dhadwal Single-finger zippers
EP4091494A1 (fr) * 2021-05-18 2022-11-23 Hermes Sellier Dispositif d'ouverture et de fermeture, du type de fermeture a glissiere, pour article notamment de maroquinerie
FR3122975A1 (fr) * 2021-05-18 2022-11-25 Hermes Sellier Dispositif d’ouverture et de fermeture, du type fermeture à glissière, pour article notamment de maroquinerie
EP4302637A3 (fr) * 2021-05-18 2024-02-28 Hermes Sellier Dispositif d'ouverture et de fermeture, du type de fermeture a glissiere, pour article notamment de maroquinerie
USD1080456S1 (en) * 2022-11-04 2025-06-24 Ykk Corporation Chain for slide fastener
USD1088955S1 (en) * 2023-04-13 2025-08-19 Ykk Corporation Chain for slide fastener

Also Published As

Publication number Publication date
JP2015116355A (ja) 2015-06-25
CN105764371B (zh) 2019-04-12
TW201526822A (zh) 2015-07-16
TWI554225B (zh) 2016-10-21
CN105764371A (zh) 2016-07-13
WO2015093338A1 (ja) 2015-06-25

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