US2996780A - Slide fastener structure employing helical fastener member - Google Patents

Slide fastener structure employing helical fastener member Download PDF

Info

Publication number
US2996780A
US2996780A US745901A US74590158A US2996780A US 2996780 A US2996780 A US 2996780A US 745901 A US745901 A US 745901A US 74590158 A US74590158 A US 74590158A US 2996780 A US2996780 A US 2996780A
Authority
US
United States
Prior art keywords
thread
cord
fastener
threads
helical
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
US745901A
Other languages
English (en)
Inventor
Porepp Hans
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2996780A publication Critical patent/US2996780A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • A44B19/406—Connection of one-piece interlocking members
    • 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
    • Y10T24/2518—Zipper or required component thereof having coiled or bent continuous wire interlocking surface
    • Y10T24/2527—Attached by stitching

Definitions

  • Helical thread slide fasteners having two opposed sets of fastener elements comprising profiled helical fastener threads made of metal or preferably of a thermo-plastic material have heretofore been made in such a manner that an attachment cord is linked to the helical threads forming each set of fastener elements.
  • Two such helical threads preferably in mesh with one another and attached to their cords, are fed to a dual needle sewing machine with two carrier strips and two slider guide cords. Each carrier strip is firmly sewn to one side of an attachment cord and one guide cord is sewn firmly to the opposite side thereof.
  • the guide cords are necessary in order to provide a side flange of a slider with a guide surface of sufficient height above or below the fastener threads.
  • the output of usual double-needle sewing machines which have hitherto been employed, is limited by the length of the thread of the shuttle. The operator is obliged to renew the bobbin of the shuttle frequently, thereby interrupting the continuity of the sewing process.
  • One object of the invention is to allow working with threads of any desired length which run off large rollers so that an interruption of the sewing process is no longer necessary and thereby the output of the sewing machine is considerably increased.
  • Another object is to provide a slide fastener structure in which the stitching of attachment cord to the carrier strip itself defines a guide cord or strip of sufficient height to guide the slider of the fastener.
  • the attachment cord 2 which in itself is not of sufiicient thickness to form a guide for the conventional slider is sewn to the carrier strip 4 by means of a double chain-stitch seam, whose lower-thread 5 is situated on the side of the attachment cord which is turned away from the carrier strip, as clearly shown in FIGURE '3, thus providing sufiicient thickness and making an additional conventional guide cord unnecessary.
  • the under-thread should therefore have a sufiicient thickness, hardness, and surface condition as is necessary for guiding the slider.
  • the under-thread material forms a strip reinforced on both sides.
  • the upperthread 6 of the double chain-stitch seam primarily determines the strength of the seam.
  • the helical thread 1 with attachment cord 2 is fed in the vicinity of one edge of and below the carrier strip 4, to a double chain-stitch sewing machine in such a manner that the loops of the underthread 5, which are held by means of the loops of the upper-thread 6 stitched through pairs of aligned holes in the carrier strip and through the attachment cord.
  • This forms a strip of interlocked loops extending below the attachment cord and its linking threads 3 a suificient height for guiding the fastener slider.
  • two opposed and enmeshed helical threads with attachment cords may be sewn at the same time to the two carrier strips in the double chainstitch sewing machine.
  • the direction of sewing may be effected in the direction of opening of the fastener by the slider, so that the endless sets of fastener elements become firmly bound to one another by means of an end member in a desired length. This ensures a satisfactory meshing of the helical threads and their correct positioning relatively to the carrier strips and a drawing up of the double chain-stitch seam is avoided.
  • FIG. 1 shows an enlarged cross-section through a helical thread with an attachment cord wound on
  • FIG. 2 shows a schematic enlarged cross-section through a set of fastener elements of a helical thread fastener
  • FIG. 3 shows a longitudinal section along the line Ill-411 of FIG. 2.
  • a profiled helical thread or stringers 1 which advantageously is made from an organic plastic material, is linked to an attachment cord 2 by means of a helical double thread 3, which is wound on cord 2 and engages each of the windings of the thread 1.
  • threads 3 may be and preferably is very resistant to wear and advantageously consists of a polyamide or polyurethane thread under tension. The purpose of this wear resistant thread will be explained later.
  • two opposed helical threads 1 with their cords are enmeshed by means of a slider and are then fed to a double chain-stitch sewing machine together with two carrier strips 4 which are positioned above the cords 2, the cords 2 being arranged in the vicinity of the facing edges of the strips 4, so that the loops of an under-thread 5, which are held by means of loops, an upper thread 6 stitched through the carrier strip 4 and the attachment cord 2, form together with the attachment cord 2 and its linking threads a guide strip of sufficient height for the slide of the fastener.
  • the upper thread 6 When sewing with a double chain-stitch sewing machine, the upper thread 6 primarily determines the strength of the seam, whilst the loops of the under-thread 5, according to the thickness, hardness and surface condition e.g. roughness of the under-thread, strengthens the attachment cord 2 in the desired manner and adapts it to the height of the sliders to be employed.
  • the inner sides of the slider flange on the side turned away from the helical thread 1 glide along the attachment cord 2, its linking threads 3 and the interlocked loops of upper-thread 6 and under-thread 5 of the seam.
  • This gliding movement after a time causes wear.
  • one of the linking threads should be made from a wear-resistant material, which prevents the other one of the two linking threads 3 from being broken due to wear, and thus avoids damage to the fastener.
  • a slide fastener structure comprising a helical filamentary slide fastener member made of plastic material, an attachment cord disposed axially parallel to the axis of said member, a pair of juxtaposed threads helically wound around the cord, said threads having spaced turns linked to each turn of the helical fastener member and holding the same adjacent to said cord, one of said threads being formed of a synthetic resin material, a carrier-strip overlaying said cord and fastener member, and a double chain stitched seam securing. the cord to said strip, said seam having a first other thread formed with a chain of spaced loops extending through said cord with bights of the loops extending below the cord 3.
  • said stitching having a second other thread formed with a chain of groups of three loops each, each group of loops of the second other thread having portions engaged with one preceding and one succeeding adjacent loop of the chain of loops of the first other thread to form a strip of fabric under the cord and under the helical slide fastener member, said strip defining with said cord and with the first named pair of threads a guide for a slider of the slide fastener.

Landscapes

  • Sewing Machines And Sewing (AREA)
  • Slide Fasteners (AREA)
US745901A 1957-07-02 1958-07-01 Slide fastener structure employing helical fastener member Expired - Lifetime US2996780A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO5585A DE1054933B (de) 1957-07-02 1957-07-02 Schraubenfederreissverschluss und Vorrichtung zu seiner Herstellung

Publications (1)

Publication Number Publication Date
US2996780A true US2996780A (en) 1961-08-22

Family

ID=7350628

Family Applications (1)

Application Number Title Priority Date Filing Date
US745901A Expired - Lifetime US2996780A (en) 1957-07-02 1958-07-01 Slide fastener structure employing helical fastener member

Country Status (7)

Country Link
US (1) US2996780A (fr)
BE (1) BE569102A (fr)
CH (1) CH362999A (fr)
DE (1) DE1054933B (fr)
FR (1) FR1197493A (fr)
GB (1) GB899246A (fr)
NL (2) NL228984A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255504A (en) * 1958-02-06 1966-06-14 Opti Holding Ag Slide fasteners
US4736495A (en) * 1986-04-15 1988-04-12 Opti Patent-, Forschungs- Und Fabrikations- Ag Slide fastener with prefabricated coupling element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147529A (en) * 1960-05-09 1964-09-08 Walter Erich Heilmann Coil fastener

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE498008A (fr) *
US777973A (en) * 1903-10-10 1904-12-20 Emma Perlich Fastening device.
US2198345A (en) * 1938-11-05 1940-04-23 Prentice G E Mfg Co Apparatus for and method of making fasteners
US2300442A (en) * 1939-11-16 1942-11-03 Wahl Brothers Inc Separable fastener
US2306873A (en) * 1942-06-09 1942-12-29 John H Feist Slide fastener
US2497821A (en) * 1945-02-16 1950-02-14 United Carr Fastener Corp Slide fastener
US2511414A (en) * 1946-09-05 1950-06-13 Talon Inc Slide fastener
US2643432A (en) * 1950-05-06 1953-06-30 William W English Slide fastener
US2858592A (en) * 1953-04-02 1958-11-04 Cue Fastener Inc Method of making slide fasteners and the resulting product

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1926217A (en) * 1933-09-12 Fastening device
US1937297A (en) * 1924-08-22 1933-11-28 Hookless Fastener Co Helical separable fastener
US1734165A (en) * 1927-12-14 1929-11-05 Hookless Fastener Co Tape for stringers for separable fasteners
US1853635A (en) * 1930-07-12 1932-04-12 Hookless Fastener Co Fastener
US2067734A (en) * 1932-01-19 1937-01-12 Waldes Kohinoor Inc Interlocking fastener structure
US2432841A (en) * 1946-06-29 1947-12-16 Wahl Brothers Tape for separable fasteners
FR1007539A (fr) * 1950-01-03 1952-05-07 Fermeture à curseur, procédé de fabrication et appareil pour sa mise en oeuvre
NL195647A (fr) * 1954-03-16
FR1123643A (fr) * 1954-05-18 1956-09-25 Stahlwerk Kabel C Pouplier Jr Procédé de fabrication de fermetures à curseur composées de deux bandes de jonction en tissu avec deux organes de fermeture formés d'hélices de sens contraire, simples, doubles ou multiples et ayant même pas, et d'un curseur
DE1745608U (de) * 1957-03-07 1957-05-29 Wolfram Dittmayer Reissverschlussband.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE498008A (fr) *
US777973A (en) * 1903-10-10 1904-12-20 Emma Perlich Fastening device.
US2198345A (en) * 1938-11-05 1940-04-23 Prentice G E Mfg Co Apparatus for and method of making fasteners
US2300442A (en) * 1939-11-16 1942-11-03 Wahl Brothers Inc Separable fastener
US2306873A (en) * 1942-06-09 1942-12-29 John H Feist Slide fastener
US2497821A (en) * 1945-02-16 1950-02-14 United Carr Fastener Corp Slide fastener
US2511414A (en) * 1946-09-05 1950-06-13 Talon Inc Slide fastener
US2643432A (en) * 1950-05-06 1953-06-30 William W English Slide fastener
US2858592A (en) * 1953-04-02 1958-11-04 Cue Fastener Inc Method of making slide fasteners and the resulting product

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255504A (en) * 1958-02-06 1966-06-14 Opti Holding Ag Slide fasteners
US4736495A (en) * 1986-04-15 1988-04-12 Opti Patent-, Forschungs- Und Fabrikations- Ag Slide fastener with prefabricated coupling element

Also Published As

Publication number Publication date
NL228984A (fr)
NL101346C (fr)
CH362999A (de) 1962-07-15
GB899246A (en) 1962-06-20
BE569102A (fr)
FR1197493A (fr) 1959-12-01
DE1054933B (de) 1959-04-16

Similar Documents

Publication Publication Date Title
SU1050577A3 (ru) Способ изготовлени по сной ленты с однослойной средней частью и пустотельными кра ми на игольном лентоткацком станке
US3685474A (en) Method of making side-fastener stringers
SU1279536A3 (ru) Способ изготовлени по сной ленты на игольном лентоткацком станке с крючковой иглой и по сна лента
GB1584472A (en) Sliding clasp fastener stringer and method of manufacture
US2858592A (en) Method of making slide fasteners and the resulting product
US2996780A (en) Slide fastener structure employing helical fastener member
US3123103A (en) Means for weaving a pre-formed slide
US3147529A (en) Coil fastener
KR100232918B1 (ko) 직조 지지 테이프 및 그 안에 직조된 결합부재의 열을 구비한 활주 패스너
US3316870A (en) Method of making coil type zipper fastener stringers
US2961738A (en) Textile product
US2906224A (en) Method of forming lock stitch
US2084938A (en) Wearing apparel
US4190935A (en) Slide fastener stringer
US3135036A (en) Zipper fastener structure
US2072542A (en) Fabric band
US3503353A (en) Linking needle for chain stitch linking machine
US3058193A (en) Process for the manufacture of chenille yarn
US3155062A (en) Joining cord ends
US3406647A (en) Single thread knotted lockstitch seam
US3143779A (en) Slide fastener stringer
US3651666A (en) Sliding clasp fastener stringers
AT224585B (de) Verdeckter Schraubenfederreißverschluß
US1885749A (en) Elastic lace braid
DE1102670B (de) Verdeckter Schraubenfederreissverschluss