US3290747A - Plastic zippers and method of making the same - Google Patents

Plastic zippers and method of making the same Download PDF

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Publication number
US3290747A
US3290747A US433598A US43359865A US3290747A US 3290747 A US3290747 A US 3290747A US 433598 A US433598 A US 433598A US 43359865 A US43359865 A US 43359865A US 3290747 A US3290747 A US 3290747A
Authority
US
United States
Prior art keywords
cord
tape
coil
loops
stitching
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
US433598A
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English (en)
Inventor
John E Burbank
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.)
Scovill Inc
Original Assignee
Scovill Inc
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 Scovill Inc filed Critical Scovill Inc
Priority to US433598A priority Critical patent/US3290747A/en
Priority to SE17017/65A priority patent/SE308963B/xx
Priority to BE675162D priority patent/BE675162A/xx
Priority to GB2165/66A priority patent/GB1086709A/en
Priority to FR46296A priority patent/FR1464446A/fr
Priority to DE19661610430 priority patent/DE1610430A1/de
Priority to NL6601242A priority patent/NL6601242A/xx
Priority to CH193566A priority patent/CH439834A/fr
Priority to ES0323164A priority patent/ES323164A1/es
Application granted granted Critical
Publication of US3290747A publication Critical patent/US3290747A/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
    • A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
    • A44B19/58—Removing interlocking members to produce gaps
    • 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
    • A44B19/12—Interlocking member in the shape of a continuous helix
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • 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
    • Y10T24/2523—Zipper or required component thereof having coiled or bent continuous wire interlocking surface with core encircled by coils or bends
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49782—Method of mechanical manufacture of a slide fastener
    • Y10T29/49785—Method of mechanical manufacture of a slide fastener of interlocking element

Definitions

  • Previous methods involve the sewing of a continuous filament, after it has been formed into a coil or other shape to provide a series of loops by a continuous. line of stitching and then later cutting outpart of the filament. In this way, theend of the coil is not firmly held or bound to the tape. Even in cases where a cord extends longitudinally throughout the coil and a portion of the coil cut away to provide an-element-free extension or gap, the result is not entirely satisfactory.
  • the stitching even if not damaged, will-be comparatively loose because the threads would have to be long enough to extend over the coil portions which had to be cut away. Thus, when the coil is removed, the stitching is not firm or tight. The result is that neither the cord nor the end of the filament are bound firmly in place. Since the cord is relatively loose, it may slide in the coil at the ends.
  • the coil with its enclosed cord is provided with the gaps before the sewing operation.
  • this step only the coil is removed, leaving the cord continuous and this serves to assist in feeding the stringer into the sewing machine. Furthermore, the scrap parts of the coil are more easily removed at this stage than in the old practice after the coil had been sewn to the tape.
  • the sewing operation preferably employs a plurality of threads so as to get ample covering of the coil and this, of course, tends to anchor the filament ends and cord even more firmly in the element-free portion.
  • FIG. 1 is a diagrammatic view in perspective, illustrating the steps in my improved method of making fastener stringers
  • FIG. 2 is a cross-section at the element-cutting station at the beginning of the cutting stroke
  • FIG. 3 is a similar section with the cutting tool engaged in the fastener element
  • FIG. 4 is also a cross-section at the cutting station, showing the completion of the cutting step
  • FIG. 5 is a longitudinal vertical section on line 55 of FIG. 2;
  • FIG. 6 is an enlarged plan view of a portion of a continuous stringer, including an element-free gap
  • FIG. 7 is a side view of the same stringer
  • FIG. 8 is a cross-section on line 8-8 of FIG. 7;
  • FIG. 9 is a front view illustrating a completed Zipper stringer length with element-free extensions at both ends.
  • the coiled plastic filament 10 with its enclosed cord 11 is guided in a groove 12 of the table top 13.
  • This tool has on its front side preferably two cutting edges 15 and 16 between the prongs 17, and these prongs serve to line up the elements with the cutting edges when they penetrate between the convolutions of the coil.
  • the operation of the cutting tool 14 is temporarily halted while the cord and coil combination is fed to the sewing station.
  • the tape T is fed under a roller 23 into overlying relation with the coil 10.
  • the two needles 24 operate continuously to sew together the coil tape and cord with a continuous double line of stitching 25.
  • the cord and coil assembly is advanced along the groove 12- by means of a feed wheel 26 actuated in a step-by-step manner.
  • the cord which fits rather snugly inside the coil, serves to carry and support in proper position the portions of coil adjacent the gap G.
  • Another feed wheel 27 operates in unison with the feed wheel 26 to assist in feeding the coil and cord assembly with the proper timing to the setting station.
  • the finished product is conveyed away from the machine by a pair of rollers 28.
  • the sewing machine interlocks these threads with a third thread 29 which extends over the convolutions of the coil, and over the cord 11 where the coil assembly is cut away. In stitching through the gap, the threads will remain under the same tension and firmly tie the cord to the tape.
  • the needle threads 25 will be closer to the cord than indicated in the diagrammatic view of FIG. 6, but in any case, the threads crossing over the cord will bind the cord securely to the tape. Also, these threads will anchor the cut coil ends, one of which is indicated at 30 and the other at 31.
  • the resulting finished product as seen in FIG. 9, has the length of coil corresponding to the desired length of the finished zipper and the upper and lower element-free extensions 32 and 33, respectively.
  • the cord cannot slide in the coil at either end because of the improved anchorage resulting from the method above described.
  • Another advantage is that there is provided a firm and strong anchorage for stop elements, and this is especially advantageous in zippers of the separable bottom end type.
  • the firm cord and tape combination provides a good support for the tubes or pins commonly employed in separable bottom ends.
  • a zipper fastener stringer comprising a length of ape, a continuous plastic filament along the edge of said Lape, said filament being formed into a series of loops, :ach loop providing a fastener element, a cord extending .ongitudinally through said loops and overlying the edge portion of said tape, said tape and cord being longer than ;aid series of loops to provide an element-free extension at said tape and cord, and a continuous line of stitching which holds together said series of loops, cord and tape, ;aid line of stitching extending through said element-free :xtension where it tightly binds the cord directly to the :ape.
  • a zipper fastener stringer comprising a length of :ape, a plastic filament coil along the edge of said tape providing a series of fastener element loops, a cord ex- ;ending longitudinally through said loops and overlying the edge portion of said tape, said coil being shorter than the tape and cord so as to provide an element-free extension on at least one end of the stringer and a continuous line of stitching extending throughout the length of the stringer, said stitching extending over the convolutions of said coils, between the coils in the region of said cord and also through the tape, said line of stitching in the element-free portion having substantially the same tension as in the coil portion whereby the end of the coil and cord are bound tightly directly to the tape.
  • a method of making zipper fastener stringers comprising feeding a continuous coil filament and a cord surrounded thereby, cutting gaps in the coil while leaving the cord intact and then sewing said coil and cord to a continuous tape by a continuous line of stitching which is maintained under the same tension through the gaps whereby the end portions of the coil and the cord in the gaps are anchored firmly to the tape.
  • said line of stitching comprises a plurality of threads side by side at least one of which is closely adjacent each side of the cord and wherein said plural threads are interlocked together over the cord.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Decoration Of Textiles (AREA)
  • Slide Fasteners (AREA)
  • Knitting Of Fabric (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sewing Machines And Sewing (AREA)
US433598A 1965-02-18 1965-02-18 Plastic zippers and method of making the same Expired - Lifetime US3290747A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US433598A US3290747A (en) 1965-02-18 1965-02-18 Plastic zippers and method of making the same
SE17017/65A SE308963B (cs) 1965-02-18 1965-12-30
BE675162D BE675162A (cs) 1965-02-18 1966-01-14
GB2165/66A GB1086709A (en) 1965-02-18 1966-01-17 Improvements in or relating to a sliding clasp fastener stringer
FR46296A FR1464446A (fr) 1965-02-18 1966-01-18 Fermeture à glissières et son procédé de fabrication
DE19661610430 DE1610430A1 (de) 1965-02-18 1966-01-22 Reissverschlussstreifen und Verfahren zu seiner Herstellung
NL6601242A NL6601242A (cs) 1965-02-18 1966-02-01
CH193566A CH439834A (fr) 1965-02-18 1966-02-11 Glissière de fermeture à glissière et procédé pour sa fabrication
ES0323164A ES323164A1 (es) 1965-02-18 1966-02-17 Un metodo de hacer ensartadores para cierres automaticos.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US433598A US3290747A (en) 1965-02-18 1965-02-18 Plastic zippers and method of making the same

Publications (1)

Publication Number Publication Date
US3290747A true US3290747A (en) 1966-12-13

Family

ID=23720755

Family Applications (1)

Application Number Title Priority Date Filing Date
US433598A Expired - Lifetime US3290747A (en) 1965-02-18 1965-02-18 Plastic zippers and method of making the same

Country Status (9)

Country Link
US (1) US3290747A (cs)
BE (1) BE675162A (cs)
CH (1) CH439834A (cs)
DE (1) DE1610430A1 (cs)
ES (1) ES323164A1 (cs)
FR (1) FR1464446A (cs)
GB (1) GB1086709A (cs)
NL (1) NL6601242A (cs)
SE (1) SE308963B (cs)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391441A (en) * 1965-10-22 1968-07-09 Talon Inc Method and apparatus for gapping slide fastener chain
US3665584A (en) * 1970-11-18 1972-05-30 American Velcro Inc Method and apparatus for making flexible strips of material having a pile of hook-shaped elements
US3694868A (en) * 1969-01-23 1972-10-03 Naegele Feinmaschinenbau Slide fastener stringer
US3710429A (en) * 1971-08-27 1973-01-16 S Spindler Sliding clasp fasteners
US3731349A (en) * 1971-04-05 1973-05-08 Yoshida Kogyo Kk Zip fastener chain
US3831228A (en) * 1971-12-03 1974-08-27 Financ Fr De Licences Et Breve Slide fastener chain
US4044431A (en) * 1975-01-09 1977-08-30 Textron Inc. Slide fastener and method and apparatus of manufacture
US4060886A (en) * 1975-01-09 1977-12-06 Textron Inc. Method and apparatus for manufacture of slide fastener stringer
US5632076A (en) * 1996-02-21 1997-05-27 Talon, Inc. Method and apparatus for gapping a continuous zipper chain
US20100107374A1 (en) * 2008-10-31 2010-05-06 Ykk Corporation Stretchable fastener stringer and slide fastener

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116794A5 (cs) * 1970-12-08 1972-07-21 Fflb
JPS5316713Y2 (cs) * 1972-12-06 1978-05-02
JPS581314U (ja) * 1981-06-24 1983-01-06 ワイケイケイ株式会社 間欠スライドフアスナ−チエ−ンの製造装置
JPS581313U (ja) * 1981-06-24 1983-01-06 ワイケイケイ株式会社 間欠スライドフアスナ−チエ−ンの製造装置
DE3531812C1 (de) * 1985-09-06 1986-10-30 Opti Patent-, Forschungs- Und Fabrikations-Ag, Riedern-Allmeind Vorrichtung fuer die Fortbewegung und fuer die Positionierung einer gekuppelten Reissverschlusskette im Zuge der Durchfuehrung von Komplettierungsarbeiten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB977842A (en) * 1961-01-05 1964-12-16 Tadao Yoshida Sliding clasp fasteners
US3190779A (en) * 1961-07-19 1965-06-22 Opti Holding Ag Method of finishing slide fasteners
US3245136A (en) * 1964-12-04 1966-04-12 Scovill Manufacturing Co Machine for removing scrap parts from gaps
US3249976A (en) * 1964-07-09 1966-05-10 Scovill Manufacturing Co Fastener stringer stitching

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB977842A (en) * 1961-01-05 1964-12-16 Tadao Yoshida Sliding clasp fasteners
US3190779A (en) * 1961-07-19 1965-06-22 Opti Holding Ag Method of finishing slide fasteners
US3249976A (en) * 1964-07-09 1966-05-10 Scovill Manufacturing Co Fastener stringer stitching
US3245136A (en) * 1964-12-04 1966-04-12 Scovill Manufacturing Co Machine for removing scrap parts from gaps

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391441A (en) * 1965-10-22 1968-07-09 Talon Inc Method and apparatus for gapping slide fastener chain
US3694868A (en) * 1969-01-23 1972-10-03 Naegele Feinmaschinenbau Slide fastener stringer
US3665584A (en) * 1970-11-18 1972-05-30 American Velcro Inc Method and apparatus for making flexible strips of material having a pile of hook-shaped elements
US3731349A (en) * 1971-04-05 1973-05-08 Yoshida Kogyo Kk Zip fastener chain
US3710429A (en) * 1971-08-27 1973-01-16 S Spindler Sliding clasp fasteners
US3831228A (en) * 1971-12-03 1974-08-27 Financ Fr De Licences Et Breve Slide fastener chain
US4044431A (en) * 1975-01-09 1977-08-30 Textron Inc. Slide fastener and method and apparatus of manufacture
US4060886A (en) * 1975-01-09 1977-12-06 Textron Inc. Method and apparatus for manufacture of slide fastener stringer
US5632076A (en) * 1996-02-21 1997-05-27 Talon, Inc. Method and apparatus for gapping a continuous zipper chain
US20100107374A1 (en) * 2008-10-31 2010-05-06 Ykk Corporation Stretchable fastener stringer and slide fastener
US8151418B2 (en) * 2008-10-31 2012-04-10 Ykk Corporation Stretchable fastener stringer and slide fastener

Also Published As

Publication number Publication date
GB1086709A (en) 1967-10-11
DE1610430A1 (de) 1970-10-29
CH439834A (fr) 1967-07-15
SE308963B (cs) 1969-03-03
ES323164A1 (es) 1967-01-01
NL6601242A (cs) 1966-08-19
BE675162A (cs) 1966-07-14
FR1464446A (fr) 1966-12-30

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