EP2974616B1 - Reissverschluss mit gestanzten metallreissverschlusszähnen - Google Patents

Reissverschluss mit gestanzten metallreissverschlusszähnen Download PDF

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Publication number
EP2974616B1
EP2974616B1 EP15161734.7A EP15161734A EP2974616B1 EP 2974616 B1 EP2974616 B1 EP 2974616B1 EP 15161734 A EP15161734 A EP 15161734A EP 2974616 B1 EP2974616 B1 EP 2974616B1
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EP
European Patent Office
Prior art keywords
zipper
walls
inner lateral
rib
mounting legs
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EP15161734.7A
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English (en)
French (fr)
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EP2974616A1 (de
Inventor
Roger C. Y. Chung
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Individual
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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/02—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
    • A44B19/40—Connection of separate, or one-piece, interlocking members to stringer tapes; Reinforcing such connections, e.g. by stitching
    • A44B19/403—Connection of separate interlocking members

Definitions

  • the present invention relates to zip fasteners and more particularly to a zipper with stamped metal zipper teeth.
  • the zipper teeth are designed to have a high strength and can be made relatively small, preventing zipper teeth breaking and assuring a high level of connection tightness between the zipper teeth and the zipper tape.
  • zipper teeth Conventional stamped metal zipper teeth for zippers are classified by size in #2, #3, #4, #5, #8, #10, wherein #2 is the smallest size.
  • zipper teeth must be no smaller than the size #2 so that zipper teeth can be strong enough for tightly fastening to a zipper tape. If the zipper tooth are smaller than the size #2, the structural strength will be insufficient, and the zipper tooth can break and be easily forced away from the zipper tape.
  • zippers with #2 zipper teeth cannot fully meet the needs of the industry. Some fashion designs require zippers with zipper teeth smaller than the size #2. Further, the use of smaller zipper teeth saves much metal material, and can achieve the purpose of environmental protection.
  • WO 2013 / 091712 A1 discloses a fastener (zipper) with a plurality of fastener elements (zipper theeth) each comprising a metal body having a coupling portion and a tape retaining portion, wherein the tape retaining portion has two essentially parallel, flat, main surfaces and forms two confronting arms, which are adapted to clamp a fastener tape there between.
  • the tape retaining portion is provided with at least one protrusion, which is provided on an edge portion of at least one of the main surfaces of the tape retaining portion.
  • a zipper comprising: two zipper tapes, each said zipper tape comprising a rib longitudinally extending along one lateral side thereof, and a plurality of metal zipper teeth fastened to said rib of each said zipper tape, each said zipper tooth comprising an engagement protrusion located on one side of a front end thereof, a recess located on an opposite side of the front end for engaging into the recess of one respective zipper tooth at the other said zipper tape, two mounting legs located at an opposing rear end thereof for clamping on two opposite lateral sides of said rib of one said zipper tape and a retaining hole defined between said two mounting legs for accommodating said rib of one said zipper tape,
  • a zipper with #2 zipper teeth comprises two zipper tapes 10, and a plurality of zipper teeth 20 fastened to one lateral side of each zipper tape 10.
  • the zipper tape 10 has a rib 101 of circular cross section extending along one lateral side thereof for holding zipper teeth 20.
  • Each zipper tooth 20 comprises two mounting legs 201 located at a rear end thereof, and a retaining hole 202 defined between the two mounting legs 201.
  • Each mounting leg 201 comprises a root 2011, and an engaging portion 2012.
  • the retaining hole 202 defines a smoothly arched wall 2021 between the roots 2011 of the two legs 201, and two planar walls 2022 respectively located at respective inner sides of the engaging portions 2012 of the two legs 201.
  • Each planar wall 2022 has one end thereof connected to the smoothly arched wall 2021, and an opposite end thereof connected to a rear end wall 2013 of the respective mounting leg 201.
  • the smoothly arched wall 2021 is abutted against the rib 101, and the planar walls 2022 of the engaging portions 2012 are respectively clamped on the opposing top and bottom fabric walls of the zipper tape 10.
  • the width A between the two planar walls 2022 of the retaining hole 202 of each zipper tooth 20 and the width C of the zipper teeth 20 have a ratio C:A>3; the height B of the zipper teeth 20 and the width A between the two planar walls 2022 have a ratio B:A>2; thus, it is difficult to make the zipper teeth 20 further smaller. If the width D of the roots 2011 of the mounting legs 201 is increased, the width E of the smoothly arched walls 2021 of the retaining hole 202 will be decreased. In this case, the mounting legs 201 can simply secure a rib 101 having a relatively smaller diameter.
  • the width A of the retaining hole 202 remains unchanged, the area of the mounting legs 201 for clamping on the rib 101 will be reduced, and the zipper teeth 20 can easily be forced away from the rib 101.
  • the width D of the roots 2011 of the mounting legs 201 is reduced to increase the width E of the smoothly arched wall 2021 of the retaining hole 202, the area of the mounting legs 201 for clamping on the rib 101 can be greatly increased, however, the strength of the roots 2011 of the mounting legs 201 will be relatively reduced, and the mounting legs 201 can break easily.
  • each zipper tooth 20 has no other engagement means to keep the rib 101 in positive engagement with the smoothly arched wall 2021, and the zipper teeth 20 can fall from the rib 101 easily after a long use.
  • the present invention has been accomplished under the circumstances in view. It is main object of the present invention to provide a zipper with stamped metal zipper teeth, which allows the zipper teeth to be made even smaller than conventional #2 metal zipper teeth, preventing zipper teeth breaking and assuring a high level of connection tightness between the zipper teeth and the zipper tape.
  • a zipper comprises two zipper tapes each having a rib longitudinally extending along one lateral side thereof, and a plurality of zipper teeth fastened to the rib of each zipper tape.
  • Each zipper tooth comprises an engagement protrusion located on one side of a front end thereof, a recess located on an opposite side of the front end for engaging into the recess of one respective zipper tooth at the other zipper tape, two mounting legs located at an opposing rear end thereof for clamping on two opposite lateral sides of the rib of one zipper tape and a retaining hole defined between the two mounting legs for accommodating the rib of one zipper tape.
  • the gap between respective inner walls of respective rear ends of the two mounting legs of each zipper tooth is referenced by A.
  • the combined height of each zipper tooth and the associated engagement protrusion is referenced by B.
  • the width of the zipper teeth is referenced by C.
  • the ratio between C and A is in the range of 2.5 ⁇ 3.
  • the ratio between B and A is in the range of 1.3 ⁇ 1.8.
  • the zipper teeth enables the zipper teeth to have a high strength no matter they are made in any different specifications or even smaller than conventional #2 zipper teeth, and thus, the zipper teeth do not break easily, and can be tightly fastened to the zipper tapes and positively interlocked with the mating zipper teeth.
  • each mounting leg of each zipper tooth comprises a root, and an engaging portion extending from the root for engaging the rib.
  • the retaining hole of each zipper tooth defines a bottom wall, referenced by Z, and two first inner lateral wall respectively located on respective inner sides of the roots of the two mounting legs.
  • the two first inner lateral walls each have a rear end thereof respectively connected to two opposite lateral sides of the bottom wall Z of the retaining hole.
  • the two first inner lateral walls define a plane X between respective front ends thereof.
  • the projected profile area of the bottom wall Z of the retaining hole, the two first inner lateral walls and the plane X is referenced by S1.
  • the midpoint of the bottom wall Z of the retaining hole and two opposite ends of the plane X constitute three points that define an arc line Y.
  • the projected profile area of the plane X and the arc line Y is referenced by S2.
  • the area S1 is larger than the area S2.
  • a zipper with stamped metal zipper teeth in accordance with the present invention has stamped metal teeth mounted on each of two zipper tapes thereof.
  • the zipper comprises two zipper tapes 1, and a plurality of zipper teeth 2 mounted on one lateral side edge of each zipper tape 1 in a line.
  • the zipper tapes 1 are fabric tapes, each having a rib 11 of circular cross section extending along one lateral side edge thereof for securing the zipper teeth 2.
  • the zipper teeth 2 are engagement members made of metal by stamping for fastening to the ribs 11 of the zipper tapes 1, as shown in FIG.3 and FIG.4 .
  • Each zipper tooth 2 comprises a polygonal engagement protrusion 21 located on one side of a front end thereof (see FIG.
  • each zipper tooth 2 further comprises two mounting legs 23 located at an opposing rear end thereof for fastening to two opposite lateral sides of the rib 11 of one zipper tape 1 to secure the respective zipper tooth 2 to the respective zipper tape 1, and a retaining hole 24 defined between the two mounting legs 23 for accommodating the rib 11. More particularly, as shown FIG. 6 and FIG.7 , the gap between respective inner walls of respective rear ends of the two mounting legs 23 is referenced by A; the combined height of each zipper tooth 2 and the associated engagement protrusion 21 is referenced by B; the width of the zipper teeth 2 between two opposite outer sidewalls 25 thereof is referenced by C.
  • each mounting leg 23 symmetrically located at the rear end of the respective zipper tooth 2.
  • Each mounting leg 23 comprises a root 231, and an engaging portion 232 extending from the root 231 for engaging the rib 11.
  • the retaining hole 24 defines a bottom wall Z, and two first inner lateral walls 2311 respectively located on respective inner sides of the roots 231.
  • the two first inner lateral walls 2311 have respective rear ends thereof respectively connected to two opposite lateral sides of the bottom wall Z.
  • the two first inner lateral walls 2311 define a plane X between respective front ends thereof.
  • the projected profile area of the bottom wall Z, the two first inner lateral walls 2311 and the plane X is referenced by S1 (see FIG.8 ).
  • the midpoint of the bottom wall Z and two opposite ends of the plane X constitute three points that define an arc line Y.
  • the projected profile area of the plane X and the arc line Y is referenced by S2 (see FIG.9 ).
  • the invention is so designed that the area S1 is larger than the area S2.
  • the first inner lateral walls 2311 can be planar walls (see FIG. 5 ), or smoothly arched walls (see FIG.12 ).
  • each first inner lateral wall 2311 has the rear end thereof connected to the bottom wall Z by an arched surface 2312 or bevel surface, and thus, the retaining hole 24 has a particular shape.
  • each mounting leg 23 defines a second inner lateral wall 2321 and a third inner lateral wall 2322 at an inner side thereof.
  • the second inner lateral wall 2321 has a front end thereof connected to a rear end wall 233 of the mounting leg 23, and an opposing rear end thereof connected to the third inner lateral wall 2322.
  • the third inner lateral wall 2322 has a front end thereof connected to the second inner lateral wall 2321, and an opposing rear end thereof connected to the front end of the first inner lateral wall 2311 by an arched surface 2323.
  • the distance between the two second inner lateral walls 2321 is the aforesaid gap A between the inner walls of the rear ends of the two mounting legs 23.
  • the second inner lateral walls 2321 of the engagement portions 232 of the mounting legs 23 are preferably planar walls respectively perpendicularly connected to the rear end walls 233 of the mounting legs 23.
  • the third inner lateral walls 2322 of the engagement portions 232 of the mounting legs 23 are sloping walls connected between the respective first inner lateral walls 2311 and the respective second inner lateral walls 2321.
  • the rear end walls 233 of the mounting legs 23 are preferably respectively connected to two opposite outer lateral walls 25 of the respective zipper tooth 2 by a respective sloping wall 234.
  • the retaining hole 24 of each zipper tooth 2 forms a specially constructed structure of five connected planes. Unlike the structural design of the circular retaining hole of the prior art zipper tooth shown in FIG. 1 , the design of the five plane-based retaining hole 24 is easy to process, and thus, the zipper teeth in accordance with the present invention can be easily made relatively smaller than conventional #2 zipper teeth. Further, as shown in FIG.10 , the retaining hole 24 defined between the two mounting legs 23 of each zipper tooth 2 fits the rib 11 of each zipper tape 1 so that the rib 11 can be inserted in between the two mounting legs 23 into the retaining hole 24.
  • the mounting legs 23 After insertion of the rib 11 into the retaining hole 24, the mounting legs 23 are crimped and engaged into the opposing top and bottom walls of the respective zipper tape 1 to tightly hold the rib 11 therebetween.
  • the rib 11 is elastically deformed to fill up the retaining hole 24. Because the cross-sectional shape of the rib 11 is highly changeable, the zipper teeth 2 can be more tightly secured to the rib 11, less prone to vibration.
  • the rib 11 is elastically deformed and has elastic potential energy, and therefore, the relatively thicker rib 11 is prohibited from passing through the relatively narrower gap A between the inner walls of the rear ends of the two mounting legs 23, preventing disconnection of the zipper teeth 2 from the rib 11.

Landscapes

  • Slide Fasteners (AREA)
  • Gears, Cams (AREA)
  • Transmission Devices (AREA)

Claims (10)

  1. Reißverschluss, umfassend: zwei Reißverschlussbänder (1), wobei jedes Reißverschlussband (1) eine Rippe (11) aufweist, die sich längs einer seitlichen Seite davon erstreckt, und eine Mehrzahl von Reißverschlusszähnen (2) aufweist, die an der Rippe (11) eines jeden Reißverschlussbandes (1) befestigt sind, wobei die Reißverschlusszähne (2) Metallreißverschlusszähne (2) sind und jeder Reißverschlusszahn (2) einen Eingriffsvorsprung (21) aufweist, der auf einer Seite eines vorderen Endes davon angeordnet ist, eine Ausnehmung (22) aufweist, die auf einer gegenüberliegenden Seite des vorderen Endes angeordnet ist, um in der Ausnehmung eines entsprechenden Reißverschlusszahnes (2) an dem anderen Reißverschlussband (1) in Eingriff zu kommen, wobei zwei Befestigungsschenkel (23) an einem gegenüberliegenden hinteren Ende davon angeordnet sind zum Klemmen an zwei gegenüberliegenden Seitenwänden der Rippe eines der Reißverschlussbänder (1), und wobei ein Rückhalteloch (24) zwischen den beiden Befestigungsschenkeln (23) zur Aufnahme der Rippe eines Reißverschlussbandes definiert ist, dadurch gekennzeichnet, dass
    wenn die Lücke zwischen den jeweiligen Innenwänden der jeweiligen hinteren Enden der beiden Befestigungsschenkel (23) jedes Reißverschlusszahns (2) mit A bezeichnet ist, wenn die kombinierte Höhe jedes Reißverschlusszahns (2) und des zugehörigen Eingriffsvorsprungs (21) mit B bezeichnet ist, und wenn die Gesamtbreite jedes Reißverschlusszahns (2) mit C bezeichnet ist, dann das Verhältnis zwischen C und A im Bereich von 2,5 bis 3 liegt, und das Verhältnis zwischen B und A im Bereich von 1,3 bis 1,8 liegt.
  2. Reißverschluss nach Anspruch 1, wobei die Größe von A innerhalb von 0,4 mm bis 0,5 mm liegt, die Größe von B innerhalb von 0,6 mm bis 0,8 mm liegt und die Gröe von C innerhalb von 1,1 mm bis 1,4 mm liegt.
  3. Reißverschluss nach Anspruch 2, wobei jeder Befestigungsschenkel (23) eine Wurzel (231) und einen Eingriffsabschnitt (232) aufweist, der sich von der Wurzel (231) zum Eingriff mit der Rippe (11) erstreckt; wobei das Rückhalteloch (24) Bodenwand definiert, die mit Z bezeichnet ist; und wobei zwei erste innere Seitenwände (2311) definiert, die jeweils an den jeweiligen Innenseiten der Wurzeln (231) der beiden Befestigungsschenkel (23) angeordnet sind, wobei die beiden ersten inneren Seitenwände (2311) jeweils an entsprechenden Innenseiten der Wurzeln (231) der Befestigungsschenkel (23) angeordnet sind, wobei zwei erste innere Seitenwände (2311) jeweils ein hinteres Ende davon aufweisen, das mit zwei gegenüberliegenden Seitenwänden der Bodenwand Z des Haltelochs (24) verbunden ist, wobei die zwei ersten inneren Seitenwände (2311) eine Ebene X zwischen jeweiligen vorderen Enden davon definieren; wobei der Mittelpunkt der Bodenwand Z des Haltelochs (24) und zwei gegenüberliegende Enden der Ebene X drei Punkte bilden, die eine Bogenlinie Y definieren; wobei, wenn der projizierte Profilbereich der Bodenwand Z des Haltelochs (24), die beiden ersten inneren Seitenwände (2311) und die Ebene X mit S1 bezeichnet sind, und wenn der projizierte Profilbereich der Ebene X und die Bogenlinie Y mit S2 bezeichnet sind, dann der Bereich S1 größer als der Bereich S2 ist.
  4. Reißverschluss nach Anspruch 3, wobei die ersten inneren Seitenwände (2311) ebene Wände sind.
  5. Reißverschluss nach Anspruch 3, wobei die ersten inneren Seitenwände (2311) flach gewölbte Wände sind.
  6. Reißverschluss nach Anspruch 3, wobei jede erste innere Seitenwand (2311) ein hinteres Ende davon aufweist, das mit der Bodenwand Z des Rückhaltelochs durch eine der gewölbten Flächen und geneigten Wände verbunden ist.
  7. Reißverschluss nach Anspruch 3, wobei der Eingriffsabschnitt (232) jedes Befestigungsschenkels (23) eine zweite innere Seitenwand (2321) und eine dritte innere Seitenwand (2322) an der Innenseite davon definiert, wobei die zweite innere Seitenwand (2321) ein vorderes Ende davon aufweist, das mit einer hinteren Endwand (233) des zugehörigen Befestigungsschenkels verbunden ist, und wobei ein gegenüberliegendes hinteres Ende davon mit der dritten inneren Seitenwand (2322) verbunden ist, wobei die dritte innere Seitenwand (2322) ein vorderes Ende davon aufweist, das mit der zweiten inneren Seitenwand (2321) verbunden ist, und wobei ein gegenüberliegendes hinteres Ende davon mit dem vorderen Ende der ersten inneren Seitenwand (2311) durch eine gebogene Fläche (2323) verbunden ist.
  8. Reißverschluss nach Anspruch 7, wobei der Abstand zwischen den zwei zweiten inneren Seitenwänden (2321) der Lücke A zwischen den entsprechenden inneren Seitenwänden der jeweiligen hinteren Enden der zwei Befestigungsschenkel (23) eines jeden Reißverschlusszahns (2) entspricht, wobei die zweiten inneren Seitenwände (2321) der Eingriffsabschnitte (232) der Befestigungsschenkel (23) ebene Wände darstellen.
  9. Reißverschluss nach Anspruch 7, wobei die dritten inneren Seitenwände (2322) der Eingriffsabschnitte (232) der Befestigungsschenkel (23) geneigte Wände darstellen.
  10. Reißverschluss nach Anspruch 7, wobei die hinteren Endwände (233) der Befestigungsschenkel (23) jeweils mit zwei gegenüberliegenden äußeren Seitenwänden (25) des entsprechenden Reißverschlusszahns (2) durch eine entsprechende geneigte Wand (234) verbunden sind.
EP15161734.7A 2014-07-18 2015-03-30 Reissverschluss mit gestanzten metallreissverschlusszähnen Active EP2974616B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420400888.3U CN203986428U (zh) 2014-07-18 2014-07-18 一种金属冲制拉链

Publications (2)

Publication Number Publication Date
EP2974616A1 EP2974616A1 (de) 2016-01-20
EP2974616B1 true EP2974616B1 (de) 2017-09-06

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US (1) US20160015133A1 (de)
EP (1) EP2974616B1 (de)
JP (1) JP3198065U (de)
KR (1) KR20160010295A (de)
CN (1) CN203986428U (de)
ES (1) ES2641888T3 (de)
TW (1) TW201603905A (de)

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CN104082912B (zh) * 2014-07-18 2016-10-05 垦青(浙江)拉链有限公司 一种金属冲制拉链
WO2019043851A1 (ja) * 2017-08-30 2019-03-07 Ykk株式会社 スライドファスナー用エレメント
IL257095A (en) * 2018-01-23 2018-03-29 Zip It Ltd Sliding connector
JP7083025B2 (ja) * 2018-08-06 2022-06-09 Ykk株式会社 エレメント及びスライドファスナー
USD906878S1 (en) * 2019-04-21 2021-01-05 Yixing Delin Garments Technology Co., Ltd. Pair of zipper teeth
US20230068548A1 (en) * 2019-10-10 2023-03-02 Ykk Corporation Metallic element and slide fastener
CN113786040B (zh) * 2021-10-22 2023-09-01 东莞市金美拉链科技有限公司 一种金属拉链颗粒牙制链机

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JP5628433B2 (ja) * 2011-08-24 2014-11-19 Ykk株式会社 ファスナーエレメント
CN104023581B (zh) * 2011-12-22 2017-06-16 Ykk株式会社 用于拉链的链牙元件及其制造方法
CN104082912B (zh) * 2014-07-18 2016-10-05 垦青(浙江)拉链有限公司 一种金属冲制拉链

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Publication number Publication date
US20160015133A1 (en) 2016-01-21
ES2641888T3 (es) 2017-11-14
EP2974616A1 (de) 2016-01-20
TW201603905A (zh) 2016-02-01
JP3198065U (ja) 2015-06-11
CN203986428U (zh) 2014-12-10
KR20160010295A (ko) 2016-01-27

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