US3704490A - Coupling element for slide fasteners - Google Patents

Coupling element for slide fasteners Download PDF

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Publication number
US3704490A
US3704490A US188334A US3704490DA US3704490A US 3704490 A US3704490 A US 3704490A US 188334 A US188334 A US 188334A US 3704490D A US3704490D A US 3704490DA US 3704490 A US3704490 A US 3704490A
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US
United States
Prior art keywords
coupling element
strip
coupling
windows
formations
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.)
Expired - Lifetime
Application number
US188334A
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English (en)
Inventor
Harry Hansen
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.)
Opti Holding AG
Original Assignee
Opti Holding AG
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
Priority claimed from DE2050438A external-priority patent/DE2050438C2/de
Priority claimed from DE19712102460 external-priority patent/DE2102460C3/de
Application filed by Opti Holding AG filed Critical Opti Holding AG
Application granted granted Critical
Publication of US3704490A publication Critical patent/US3704490A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A44B19/10—Slide fasteners with a one-piece interlocking member on each stringer tape
    • A44B19/14—Interlocking member formed by a profiled or castellated edge
    • 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
    • Y10T24/2536—Zipper or required component thereof having interlocking surface formed from single member with varying cross section
    • 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
    • Y10T24/2557—Interlocking surface constructed from plural elements in series having mounting portion with specific shape or structure

Definitions

  • a coupling element for a slide fastener consists of a strip of thermoplastic synthetic resin material bent or folded about a longitudinal axis into a U-section or J- [30] Foreign Application Priority Data section so that a wide leg directly overlies a narrow leg and overhangs the latter to form a guiding edge of the Oct. 14, 1970 Germany ..P 20 50 438.5 Slider The bight of the folded Strip is provided with Jan.
  • My present invention relates to slide fasteners and, more particularly, to an improved coupling element for a slide fastener.
  • a coupling element is defined as the member provided along one edge of a support tape or a fabric (e.g., a garment) upon which the slide fastener is provided, for mating engagement with a complementary coupling element of the other slide-fastener half upon movement of a slider along the coupling elements.
  • the slidefastener half may thus consist of the aforementioned support tape or the supporting layer of fabric and the coupling element.
  • end-stop members are formed at each end of the slide fastener to prevent withdrawal of the slider and separation of the two halves of the fastener.
  • one or each end of the slide fastener may have a pair of interfittable end-stop members designed to allow one coupling element to be fed into the slider and to be aligned with the other coupling element when the fastener is to be closed.
  • Coupling elements may be of the continuous or discontinuous type, depending upon whether the coupling heads or formations are unitarily formed in longitudinally spaced relationship upon a single element or are individual bodies clamped to the supporting layer.
  • the present invention is concerned with a continuous coupling element.
  • an invisible or concealed slide fastener is one which is provided on the reverse face of a fabric exposed to view and can be engaged without exposure through a gap between the fabric lips definingthe opening to be closed by the fastener.
  • the strip-type slide fastener suffers from certain lacks of dimensional stability and stress resistance and is also difficult or expensive to manufacture.
  • Still another object of the invention is to provide a coupling element which, in spite of increased fineness and reduced interhead spacing, is highly resistant to breakage under all of the stresses arising in the use of the slide fastener.
  • a coupling element for a slide fastener in the form of a coninuous synthetic-resin strip folded about a longitudinal axis so as to form a relatively wide outer flange directly overlying and in face-toface engagement with a relatively narrow inner flange or leg attached to overlie the support layer to which the strip is secured.
  • the bight of the strip is provided with spacedapart coupling formations engageable with the coupling formations of a like coupling element while the strip is formed, between a slider-guide edge defined by the overhang and the heads, with a row of longitudinally spaced needle-passing openings or windows, into which the stitching needle may pass in securing the coupling element to the support.
  • I provide projections from the underside of the strip engageable with the fabric layer to prevent shifting of the strip relative to the support layer.
  • the folded synthetic-resin strip having two superimposed flanges, legs or bands is secured to one side only of the support and is provided, along its face turned toward the support, with anchoring projections in the region of the stitching openings or windows for limiting relative movement of the support layer and the strip while the edge of the strip turned away from the coupling formations forms a slider-guiding flange which is spaced from the fabric by the underturned nar row leg.
  • the slider does not engage the fabric so that this source of wear and binding is avoided and, especially when the threads are wholly or partially sunk beneath the exposed surface of the coupling element, the tendency toward wear of the attachment threads is reduced or eliminated.
  • the anchoring formations in'the region of the needle windows or openings not only prevent shifting of the coupling element relative to the support layer, but reinforce the stitching in preventing longitudinal elongation or contraction and hence maintain the gauge or interhead spacing. By limiting lateral movement, they also prevent or limit the tendency toward binding.
  • the slide fastener described has been found to be highly advantageous for use as an invisible or concealed slide fastener which is directly secured to the fabric of the garment, e.g., to close the slit in skirts, trousers, or the like.
  • the needle windows are disposed between the female coupling formations and in line with the coupling heads although it has been found advantageous where greater flexibility in the coupling plane is desired, to orient the openings alongside the female coupling formations and to interrupt the web of thermoplastic synthetic-resin materialbetween the needle window and the female formation.
  • boththe coupling heads and the intervening female formations or cavities are formed in the flat strip, preferably prior to folding, together with holes which are brought into registry when the legs are folded into superimposed relationship.
  • the needle-passing windows of the strip are formed with inwardly convergent or outwardly divergent funnel-like surfaces which guide the needle relative to the coupling element in the event some dislocation may occur during the stitching operation.
  • Between the needle-guide openings, 1 form the exposed surface of the coupling element with a channel in which the attachment threads may lie to minimize the extent, if any, to which the threads may project above this surface and engage the slider.
  • edges of the legs turned away from the coupling formations' are provided with mutually interlocking formations increasing the stability of the overhanging ledge.
  • These formations may have a Z-configuration so that the formations of the upper (outer) and lower (inner) legs overhang one another.
  • FIG. 1 is an enlarged perspective view of a slide fastener embodying the present invention
  • FIGS. 1A-1C are detail views illustrating features of the coupling element
  • FIG. 2 is a perspective view of the coupling element of FIG. 1 drawn to a still larger scale
  • FIG. 3 is a plan view of a coupling element according to another embodiment of theinvention.
  • FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. 3;
  • FIG. 5 is a plan view illustrating still another embodiment of a coupling element according to the invention.
  • FIG. 6 is a cross-sectional view taken along the line VI- ⁇ I of FIG. 5;
  • FIG. 7 is a cross-sectional view VII-VII of FIG. 5.
  • thermoplastic syntheticresin slide-fastener stringer 100 consisting of slidefastener halves 101, 102, each having a couplingelement 3 extending continuously along an edge of an opening to be closed along the side thereof opposite the face 103 to be exposed.
  • the coupling elements 3 are intended to be brought into engagement or disengagement by a slider 2 movable in the direction of arrow 104 and having a tongue (not shown) reaching through the gap 105 between the fabric layers 6 or on the concealed side of the layers to which the coupling elements 3 are secured.
  • the couplings 3 can be formed from an injection-molded strip 106 of synthetic resin provided with frustoconical openings 107 connected by V-section channels 108, openings 109 attached to constitute the female connecting formations and openings 110 alignable with the openings 107 to form the needle-receiving windows to be described in greater detail. While anchoring formations running in the longitudinal direction have been shown in FIGS. 1 and 2, it should be understood that individual sets of formations 111 can also be provided about each opening 110. The strip is folded about the longitudinal axis F to form a bight portion B which is provided with coupling heads 1 with intervening female formations.
  • Both coupling elements 3 are thus bent in a U-configuration forming a thermoplastic extruded or injection-molded strip by a bending action which simultaneously forms the coupling heads.
  • the heads are shown to be provided with lateral projections 4 which form seats 4' preventing transfer separation of the interlocked coupling elements in the direction of arrow T.
  • the folded coupling element comprises an inner relatively narrow leg 112 and an overlying relatively wide leg 113 connected by the bight 114 (FIG. 2) and a face-to-face contact at 115.
  • the wide leg overhangs the fabric 6 beyond the narrow taken along the line leg to form the slider-guide flange 5.
  • the slider in turn, is formed with an underturned ledge 5a engaging beneath the flange 5. The slider is thus held above the fabric 6 and is shiftable along the coupling elements without engagement with the fabric.
  • the aligned openings 107, 110 form circular windows 7, through which the stitching needle is designed to pass, the opening 7 being provided with inwardly converging or outwardly diverging frustoconical guide surfaces 8 centering the needle with respect to the coupling element when the coupling element may be misoriented in its feed through the sewing machine.
  • the upper surface of the coupling elements is channeled with a V-section groove 9 adapted to receive the fastening threads 10 which thus lie below the exposed surface of the coupling element.
  • I On the underside of the narrow leg 112, I provide a pair of ridges 11 which flank the openings 7, 8 and are beveled to form edges adapted to penetrate the support fabric.
  • anchoring formations are provided in the form of diametrically opposite pins 311 in the embodiment of FIG. 1C.
  • the coupling heads 1' differ from those of FIGS. 1 and 2 in that the lateral formations 4' are molded in the heads and engage shoulders 4a formed by folding of the strip.
  • the projections 11' are provided on opposite sides of the openings 7, 8', but lie within the outlines of these openings.
  • the window 7 opens in the direction of the head-receiving recess R and the synthetic-resin web between them is omitted at W to increase the flexibility of the coupling element in the coupling plane.
  • the windows 7', 8' (the latter being funnel-shaped as described earlier) are of rectangular or square outline and have their diagonals aligned in the longitudinal direction of the slide fastener.
  • the coupling element 3' moreover, is provided with a channel 9' between the windows and with an overhanging ledge 5' forming a guide for the slider.
  • the lower leg 12 is formed with the regions 11 as already described.
  • the lower and upper legs 12 and 13 are formed with overlapping Z-shaped tails l4 and 15, respectively, which lie in formfitting relationship (see FIGS. 5 and 7) to define the guide flange 5" of the coupling elements.
  • the legs of the Zs fit into one another and hence support one another against transverse stress.
  • a slide fastener having a support layer
  • the improvement which comprises a couplin element overlymg a surface of said layer and II'ICIU mg a continuous synthetic-resin strip folded about a longitudinal axis to form a relatively narrow leg engaging said layer and a relatively wide leg overlying said narrow leg and joined thereto along a bight of said strip; a multiplicity of coupling formations formed along said bight in longitudinally equispaced relationship for interengagement with corresponding coupling formations of a mating coupling element; a slider guide flange formed by a portion of said wide leg overhanging said narrow leg on a side of said strip opposite said bight, said strip being formed inwardly of said bight with a row of longitudinally spaced needle-passing openings; anchoring formations provided on said narrow leg in the region of said window and engaging said layer for limiting relative displacement of said layer and said coupling element; and a row of stitching fastening said coupling element to said layer and passing through said window.
  • anchoring formations are rows of beveled ridges defining edges on opposite sides of said windows.
  • said coupling formations include coupling heads and recesses complementary to said heads and formed in said strip between them, said windows opening into said recesses.

Landscapes

  • Slide Fasteners (AREA)
  • Sheet Holders (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
US188334A 1970-10-14 1971-10-12 Coupling element for slide fasteners Expired - Lifetime US3704490A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2050438A DE2050438C2 (de) 1970-10-14 1970-10-14 Reißverschluß
DE19712102460 DE2102460C3 (de) 1971-01-20 1971-01-20 Reißverschluß

Publications (1)

Publication Number Publication Date
US3704490A true US3704490A (en) 1972-12-05

Family

ID=25759897

Family Applications (1)

Application Number Title Priority Date Filing Date
US188334A Expired - Lifetime US3704490A (en) 1970-10-14 1971-10-12 Coupling element for slide fasteners

Country Status (16)

Country Link
US (1) US3704490A (US06534493-20030318-C00166.png)
JP (1) JPS5120947B1 (US06534493-20030318-C00166.png)
AT (1) AT318517B (US06534493-20030318-C00166.png)
AU (1) AU460193B2 (US06534493-20030318-C00166.png)
BE (1) BE773101A (US06534493-20030318-C00166.png)
CA (1) CA975932A (US06534493-20030318-C00166.png)
CH (1) CH516921A (US06534493-20030318-C00166.png)
DK (1) DK133077C (US06534493-20030318-C00166.png)
ES (1) ES196804Y (US06534493-20030318-C00166.png)
FI (1) FI53937C (US06534493-20030318-C00166.png)
FR (1) FR2112293B1 (US06534493-20030318-C00166.png)
IE (1) IE35697B1 (US06534493-20030318-C00166.png)
IL (1) IL37905A (US06534493-20030318-C00166.png)
NL (1) NL7114043A (US06534493-20030318-C00166.png)
NO (1) NO128938B (US06534493-20030318-C00166.png)
SE (1) SE387043B (US06534493-20030318-C00166.png)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955247A (en) * 1973-12-29 1976-05-11 Yoshida Kogyo Kabushiki Kaisha Slide fastener element construction
US3977053A (en) * 1973-10-20 1976-08-31 Yoshida Kogyo Kabushiki Kaisha Slide fastener stringer
US4183121A (en) * 1977-10-20 1980-01-15 Bonnie Enterprises, Inc. Separable fastener
US20050204517A1 (en) * 2004-03-19 2005-09-22 Nike, Inc. Closure mechanism for apparel
CN104705916A (zh) * 2015-03-27 2015-06-17 福建浔兴拉链科技股份有限公司 一种结构改良的塑钢轨道拉链
CN104799503A (zh) * 2014-01-25 2015-07-29 梅州荣赐拉链制品有限公司 一种带挤压花纹线条图案logo金属拉链生产加工方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63143145U (US06534493-20030318-C00166.png) * 1987-03-11 1988-09-21

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772469A (en) * 1952-02-08 1956-12-04 Staller Karel Jan Slide fastener
GB871458A (en) * 1958-01-14 1961-06-28 Jorgen Gunnar Hansen Improvements in and relating to sliding clasp fasteners
FR1285599A (fr) * 1961-03-31 1962-02-23 Pres Cuit S A Fermeture à glissière

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772469A (en) * 1952-02-08 1956-12-04 Staller Karel Jan Slide fastener
GB871458A (en) * 1958-01-14 1961-06-28 Jorgen Gunnar Hansen Improvements in and relating to sliding clasp fasteners
FR1285599A (fr) * 1961-03-31 1962-02-23 Pres Cuit S A Fermeture à glissière

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977053A (en) * 1973-10-20 1976-08-31 Yoshida Kogyo Kabushiki Kaisha Slide fastener stringer
US3955247A (en) * 1973-12-29 1976-05-11 Yoshida Kogyo Kabushiki Kaisha Slide fastener element construction
US4183121A (en) * 1977-10-20 1980-01-15 Bonnie Enterprises, Inc. Separable fastener
US20050204517A1 (en) * 2004-03-19 2005-09-22 Nike, Inc. Closure mechanism for apparel
US7036190B2 (en) * 2004-03-19 2006-05-02 Nike, Inc. Closure mechanism for apparel
CN104799503A (zh) * 2014-01-25 2015-07-29 梅州荣赐拉链制品有限公司 一种带挤压花纹线条图案logo金属拉链生产加工方法
CN104705916A (zh) * 2015-03-27 2015-06-17 福建浔兴拉链科技股份有限公司 一种结构改良的塑钢轨道拉链

Also Published As

Publication number Publication date
DK133077B (da) 1976-03-22
BE773101A (fr) 1972-01-17
AT318517B (de) 1974-10-25
JPS5120947B1 (US06534493-20030318-C00166.png) 1976-06-29
SE387043B (sv) 1976-08-30
AU3454571A (en) 1973-04-19
ES196804Y (es) 1975-08-16
AU460193B2 (en) 1975-04-17
CA975932A (en) 1975-10-14
IL37905A (en) 1974-06-30
FI53937C (fi) 1978-09-11
ES196804U (es) 1975-04-16
IE35697B1 (en) 1976-04-28
IE35697L (en) 1972-04-14
NL7114043A (US06534493-20030318-C00166.png) 1972-04-18
NO128938B (US06534493-20030318-C00166.png) 1974-02-04
FR2112293A1 (US06534493-20030318-C00166.png) 1972-06-16
FR2112293B1 (US06534493-20030318-C00166.png) 1976-06-04
DK133077C (da) 1976-08-09
IL37905A0 (en) 1971-12-29
CH516921A (de) 1971-12-31
FI53937B (fi) 1978-05-31

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