US20070209170A1 - Concealed slide fastener - Google Patents

Concealed slide fastener Download PDF

Info

Publication number
US20070209170A1
US20070209170A1 US11/711,322 US71132207A US2007209170A1 US 20070209170 A1 US20070209170 A1 US 20070209170A1 US 71132207 A US71132207 A US 71132207A US 2007209170 A1 US2007209170 A1 US 2007209170A1
Authority
US
United States
Prior art keywords
coupling
tape
elements
shelves
slide fastener
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
US11/711,322
Other languages
English (en)
Inventor
Mark Davies
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 Europe Ltd
YKK Corp
Original Assignee
YKK Europe Ltd
YKK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YKK Europe Ltd, YKK Corp filed Critical YKK Europe Ltd
Assigned to YKK EUROPE LIMITED reassignment YKK EUROPE LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DAVIES, MARK
Assigned to YKK CORPORATION reassignment YKK CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: YKK EUROPE LIMITED
Publication of US20070209170A1 publication Critical patent/US20070209170A1/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
    • A44B19/32—Means for making slide fasteners gas or watertight
    • 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
    • A44B19/34—Stringer tapes; Flaps secured to stringers for covering the interlocking members
    • 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
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
    • 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
    • Y10T24/2539—Interlocking surface constructed from plural elements in series

Definitions

  • the present invention relates to a concealed slide fastener and in particular to a concealed slide fastener having moulded elements.
  • FIG. 10 shows a coupling element illustrated in U.S. Pat. No. 4,078,278.
  • a stringer of a concealed slide fastener having moulded elements 101 is provided by moulding the fastener elements 101 on to an edge of a tape (not shown) so that the tape exits the element from a slot 103 formed in a front surface 105 of the element body 107 .
  • the coupling part 109 of the coupling element 101 is formed on the front surface 105 of the body, to one side of the tape.
  • the tape is then folded around the upper body portion 107 a , away from the coupling part 109 to cover the upper surface 111 of the body.
  • the tapes abut, between the facing front surfaces 105 of the coupling elements 101 , thus concealing the elements 101 when viewed from above.
  • a similar technique can be used for providing waterproof fasteners and the present invention includes such fasteners.
  • a drawback of the prior art arrangement is that the coupling part 109 is formed completely to one side of the tape. Because the element body 107 must be of sufficient thickness in the region 107 a above the tape, to prevent it fracturing, the body portion 107 b below the tape must be kept relatively thin to avoid the element body 107 being too thick overall. Thus, the coupling part 109 formed is on only about one half the overall thickness of the body.
  • the coupling part 109 serves two main functions. Firstly, heads 117 of the coupling parts on opposed elements engage behind each other to prevent separation in the plane of the fastener.
  • shelves 113 are formed on the heads 117 to bear on shelves 115 provided on the opposed elements to limit out of plane bending of the fastener and prevent separation of the coupling elements by out of plane movement.
  • This shelf 113 forms an undercut on the head 117 facing the tape and so it is necessary to use a sliding core mould for moulding the coupling elements 101 on the tape. If the coupling part 109 is too thin, particularly at the region of a shelf, it is likely to break when the fastener is flexed roughly or even in normal use. Also, the thin coupling element head 117 itself contributes less resistance to out of plane bending of the fastener. However, the overall thickness of the element 101 must be kept small for aesthetic reasons, and also to reduce the amount and cost of materials.
  • a concealed slide fastener comprising a pair of stringers in which moulded coupling elements are provided on the edge of a respective tape, the coupling element including a body straddling the edge of the tape, a coupling portion extending from the body on one side of the tape and a shelf projecting from the body on the other side of the tape; when the coupling elements of the opposed stringers are engaged, the coupling portions of the coupling elements of one stringer bearing on the shelves of the opposed elements of the other stringer through the respective tape.
  • the coupling head can be the full thickness of the body on the one side of the tape.
  • there is no undercut facing the tape and so the coupling elements can be moulded without a sliding core: a two-part mould can be used.
  • the tape portion within the body is positioned substantially at a mid plane of the body.
  • the coupling element head is formed on a neck which extends from the front face of the body.
  • a coupling element head engages behind the heads of two opposed coupling elements on the other stringer and lays between their respective necks.
  • a shoulder is provided each side of the neck, to provide an abutment surface for the head of an opposed element.
  • the shelf may extend the full width of the body, in the elongate direction of the tape.
  • the recess may partially accommodate the shelves of opposed elements.
  • the protrusions of opposed coupling element are spaced from each other by the thickness of the intervening tapes. Depending on the desired appearance, a greater spacing may be provided. Particularly for a waterproof fastener, the protrusions may be arranged to pinch the tapes together.
  • a coupling element head bears on the adjacent necks and heads of the opposed coupling elements and the opposed shoulders.
  • the coupling elements are better able to resist flexing of the fastener.
  • the element heads and the necks are shaped so that a coupling head abuts the shoulders on the opposed elements and also abuts the side surface of the adjacent coupling heads at a region which transitions from the head to the neck.
  • the side surfaces abut one another at a region midway between the opposed tapes.
  • the heads also bear on the shelves of the opposed elements through the respective tape to prevent separation by out of plane movement.
  • FIG. 1 is a perspective view from above of three coupling elements of a slide fastener which forms an embodiment of the invention, with the respective tapes removed for clarity;
  • FIG. 2 is an underneath perspective view of the elements of FIG. 1 ;
  • FIG. 3 is a cross-section along line III-III of FIG. 1 , and showing the slide fastener tapes;
  • FIG. 4 is a plan view of a slide fastener coupling element of FIG. 1 ;
  • FIG. 5 is an underneath view of the element of FIG. 4 ;
  • FIG. 6 is a side view of the element of FIG. 4 ;
  • FIG. 7 is a plan view of a modification of the slide fastener, with one tape removed;
  • FIG. 8 is a cross-section through the slide fastener, showing a part of a slider
  • FIG. 9 is an underneath plan view of the coupling elements of FIG. 1 showing the contact surfaces of the elements.
  • FIG. 10 shows a prior art coupling element.
  • a slide fastener according to the present invention has a pair or fastener tapes, two rows of coupling elements injection-moulded onto the respective inner longitudinal edges of the fastener tapes and a slider movable along the coupling element rows in order to couple or decouple the coupling elements.
  • FIG. 1 is a perspective view from above of three coupling elements of a slide fastener which forms an embodiment of the invention.
  • this shows three coupling elements 11 , 13 , 15 which are parts of coupling elements of thermoplastic material which are moulded directly onto respective tapes 17 , 19 (shown in FIG. 3 ) by injection moulding.
  • the tapes have cords 21 , 23 at their edges 25 , 27 .
  • the element bodies 29 of the coupling elements 11 , 13 , 15 straddle both the front and rear surfaces of the respective tape edge in U-cross-sectional shape.
  • the coupling elements 11 , 13 , 15 has a coupling portion 53 formed on one end thereof and the side of the coupling elements 11 , 13 , 15 whereon the coupling portion 53 is formed is greater in length than the other side.
  • the body 29 has two sides across the plane of the fastener tape 17 , 19 , that is, one side whereon the coupling portion 53 is formed and the other side whereon the below-described projections 33 is formed.
  • the body 29 is moulded astraddle the edges of the tapes 17 , 19 or so as to enclose them in substantially U-cross-sectional shape.
  • the surface of the body 29 on which the element portion 53 is formed is referred to as a front face 31 .
  • the coupling elements 11 , 13 , 15 are moulded to the fastener tapes 17 , 19 with the tapes 17 19 inserted in substantially the middle of the front face 31 of the body 29 .
  • the part of the body 29 into which the tapes 17 , 19 are inserted is called “slot” here.
  • the tape 17 , 19 exits the body at a slot 30 in the front face 31 , approximately mid way of the face.
  • the tape edge portion 25 , 27 is shown in FIG. 3 to be substantially at a mid plane of the body 29 .
  • the edge portion of the tape 17 , 19 attached to the coupling element 11 , 13 , 15 is folded around the front face 31 of the body 29 at the slot 30 , and the coupling portion 53 projects beyond the folded part of the fastener tapes 17 , 19 .
  • the tape edge portion could be angled to the mid plane of the body 29 .
  • the tape edge portion 25 , 27 is positioned to ensure that there is sufficient thickness of material of the body 29 around the tape edge to avoid any weakness in the body 29 .
  • a coupling portion 53 extends out from the front surface 31 of the body 29 and is formed by a coupling element head 43 on a neck 45 . There are formed shoulders 46 on the lateral opposed sides of the neck 45 on the front face 31 of the body 29 . From FIG. 2 it can be seen that in the coupled fastener, the head 43 of coupling element 15 (the middle coupling element as viewed in FIG. 1 ) engages behind the heads 43 of the opposed elements 11 , 13 (beside the neck 45 ) to prevent separation of the coupling elements in the horizontal plane of the fastener, as well known in the art.
  • the head 43 pressingly contacts the necks 45 , heads 43 and shoulders 46 of the adjacent elements 11 , 13 , thereby limiting out of plane movement or twisting of the elements relative to one another.
  • the head 43 also bears on the shelf 47 ( FIG. 5 ) formed by the underside of the projections 33 , to limit relative out of plane movement of the adjacent coupling elements.
  • the respective tape in this case tape 17
  • the respective tape is interposed between the head 43 of element 15 and the shelves 47 of elements 11 , 13 .
  • the shelves 47 can bear upon the upper face 49 of the coupling head 43 through the respective tapes 17 , 19 and are formed large enough to ensure that the shelves 47 can accomplish the shelves 47 bearing upon the upper face 49 of the coupling head 43 .
  • the projections 33 project so as to bear upon the coupling heads 43 of the other stringer. Since the coupling elements 11 , 13 , 15 are provided by injection moulding process, the shelves 47 are moulded upon the tapes 17 , 19 . Usually, the shelves 47 will not be peeled off the tapes 17 , 19 . Even if the shelves 47 is peeled off the tape 17 , 19 due to repeated severe use, the shelves 47 can bear upon the coupling heads 43 of the coupling elements 11 , 13 , 15 through the tapes 17 , 19 .
  • the tapes 17 , 19 are nipped between the projections 33 of the opposed elements 11 , 13 , 15 .
  • the degree of compression of the tapes will depend on the distance between the projections 33 (the shelves 47 ). As shown in FIG. 3 , the distance between the opposed projections 33 is made greater than the thickness of the tapes 17 , 19 interposed therebetween, therefore, the tapes 17 , 19 are not compressed thereby, however, some compression is desirable for a waterproof fastener. For a fabric, relatively less compression is desirable to avoid puckering of the fabric. Referring to FIG.
  • the elements 11 , 13 , 15 can be injection moulded on to the respective tape which is captured in a mould which splits into two parts approximately along the horizontal plane of the tapes 17 , 19 indicated by the line X-X, because there are no undercuts facing the tape 17 , 19 .
  • several coupling elements can be moulded at a time on to the tape 17 , 19 .
  • Metal elements could be stamped or crimped onto the tape edge.
  • FIG. 7 is a plan view of a slide fastener of the invention. This has coupling elements 11 ′ similar to those of FIG. 1 .
  • One of the tapes has been removed and it can be seen that the projections 33 ′ are positioned to each side of the neck 45 so as to bear on the adjacent heads 43 of the opposed elements, with the tape sandwiched in between.
  • the projections 33 ′ help to limit out of plane bending of the fastener by co-operating with the opposed projections 33 ′ if the fastener is twisted.
  • the positioning and width of the projections will depend on the desired effect and in particular how important it is to avoid any puckering of the material of the tapes on the upper surface of the fastener.
  • FIG. 8 shows a cross section through a fastener with a part of a slider 51 which carries a pull tab, embraces the coupling elements and is slid along the fastener to close or open the fastener as known in the art.
  • FIG. 9 shows the contact between coupling elements 11 , 13 , 15 .
  • the coupling element head 43 of element 15 abuts the shoulders 46 on the opposed pair of elements 11 , 13 .
  • the coupling portion 53 touches the adjacent coupling portions 53 in the widthways direction at a transition region 55 where the coupling head 43 transitions into the neck 45 .
  • Contact at the transition region 55 and the shoulders 46 provides for greater stability of the fastener. However, if adjacent teeth contact completely along their facing surfaces, the fastener will be difficult to operate.
  • the coupling head can be the full thickness of the body on the one side of the tape.
  • the coupling elements can be moulded without a sliding core: a two part mould can be used.
  • the coupling elements are better able to resist flexing of the fastener.

Landscapes

  • Slide Fasteners (AREA)
US11/711,322 2006-03-07 2007-02-27 Concealed slide fastener Abandoned US20070209170A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0604599.1 2006-03-07
GB0604599A GB2445156B (en) 2006-03-07 2006-03-07 Concealed slide fastener

Publications (1)

Publication Number Publication Date
US20070209170A1 true US20070209170A1 (en) 2007-09-13

Family

ID=36241149

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/711,322 Abandoned US20070209170A1 (en) 2006-03-07 2007-02-27 Concealed slide fastener

Country Status (4)

Country Link
US (1) US20070209170A1 (ja)
JP (1) JP4822187B2 (ja)
CN (1) CN100508816C (ja)
GB (1) GB2445156B (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI391103B (zh) * 2009-02-05 2013-04-01 Ykk Corp Concealed zipper buckle components and hidden zipper
US9918527B2 (en) * 2016-03-31 2018-03-20 Ykk Corporation Concealable slide fastener
USD818394S1 (en) * 2016-06-30 2018-05-22 Ideal Fastener (Guangdong) Industries Ltd. Zipper tooth

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102204737A (zh) * 2011-05-13 2011-10-05 江苏博豪拉链制造有限公司 一种金属链齿及其金属拉链
CN110087502B (zh) * 2016-12-26 2021-11-23 Ykk株式会社 拉链
KR101948205B1 (ko) * 2017-05-23 2019-02-13 주식회사태평양지퍼 슬라이드 패스너
CN210130444U (zh) * 2018-05-10 2020-03-10 Ykk株式会社 拉链牙链带
CN110089813A (zh) * 2019-06-03 2019-08-06 宜兴市德林服饰科技有限公司 一种球头形布带筋可变形拉链

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124871A (en) * 1954-03-06 1964-03-17 Ryser
US3161933A (en) * 1962-10-23 1964-12-22 Doelter Gandolph Continuous fasteners
US4078278A (en) * 1976-04-05 1978-03-14 Textron Inc. Slide fastener

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798275A (en) * 1954-02-26 1957-07-09 Louis H Morin Center ledge scoop for separable fasteners
JP2598345Y2 (ja) * 1993-03-30 1999-08-09 ワイケイケイ株式会社 隠しスライドファスナー用咬合子
TW419962U (en) * 1999-01-13 2001-01-21 Keen Ching Ind Co Ltd Plastic invisible zipper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124871A (en) * 1954-03-06 1964-03-17 Ryser
US3161933A (en) * 1962-10-23 1964-12-22 Doelter Gandolph Continuous fasteners
US4078278A (en) * 1976-04-05 1978-03-14 Textron Inc. Slide fastener

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI391103B (zh) * 2009-02-05 2013-04-01 Ykk Corp Concealed zipper buckle components and hidden zipper
US9918527B2 (en) * 2016-03-31 2018-03-20 Ykk Corporation Concealable slide fastener
USD818394S1 (en) * 2016-06-30 2018-05-22 Ideal Fastener (Guangdong) Industries Ltd. Zipper tooth

Also Published As

Publication number Publication date
JP4822187B2 (ja) 2011-11-24
JP2007236958A (ja) 2007-09-20
GB0604599D0 (en) 2006-04-19
GB2445156B (en) 2010-04-28
GB2445156A (en) 2008-07-02
CN101057721A (zh) 2007-10-24
CN100508816C (zh) 2009-07-08

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Date Code Title Description
AS Assignment

Owner name: YKK EUROPE LIMITED, UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DAVIES, MARK;REEL/FRAME:019045/0798

Effective date: 20070213

Owner name: YKK CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:YKK EUROPE LIMITED;REEL/FRAME:019045/0796

Effective date: 20070213

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION