US3333305A - Terminal portions of plastic filament zippers - Google Patents

Terminal portions of plastic filament zippers Download PDF

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Publication number
US3333305A
US3333305A US505925A US50592565A US3333305A US 3333305 A US3333305 A US 3333305A US 505925 A US505925 A US 505925A US 50592565 A US50592565 A US 50592565A US 3333305 A US3333305 A US 3333305A
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US
United States
Prior art keywords
tape
filament
coil
cord
zippers
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
US505925A
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English (en)
Inventor
Donald O Taylor
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 US505925A priority Critical patent/US3333305A/en
Priority to GB48145/66A priority patent/GB1156826A/en
Priority to FR81738A priority patent/FR1497901A/fr
Priority to BE688984D priority patent/BE688984A/xx
Application granted granted Critical
Publication of US3333305A publication Critical patent/US3333305A/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
    • A44B19/24—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
    • A44B19/52—Securing the interlocking members to stringer tapes while making the latter
    • A44B19/54—Securing the interlocking members to stringer tapes while making the latter while weaving the stringer tapes
    • 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
    • A44B19/60—Applying end stops upon stringer tapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/62—Stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/69—General aspects of joining filaments 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2005/00—Elements of slide fasteners
    • 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

  • the invention relates generally to zippers of the type employing continuous plastic filaments.
  • Such filaments may be of the elongated coil type or the filament may take some meandering form which is not strictly a coil, Ibut which presents open loop portions extending from the edge lof a fabric Stringer on which the filament is mounted.
  • these zippers may be referred to simply as the coil filament type.
  • the continuous filament In preparing coil filament zipper stringers for end stops, the continuous filament must be cut at a point spaced from the tape end and a portion of the coil removed to provide a tape extension.
  • the attachment of stop members on such tape extensions has always been a difficult problem in zippers of this type.
  • the cut end of the coil must be secured so that it cannot back out or twist away from its proper place. Attempts to mold stop members or to clamp metal parts in place over the coil end have been only partially successful. This is due primarily to the fact that when pressure is applied, the coil and end tend to squirm away from the normal position.
  • This invention results in a finished product where the cut end of the coil is firmly anchored to the tape and sewing threads, and also to the cord when a cord is employed.
  • the problem of producing this result is solved by a process involving the threading of the open loop portions near the end of the coil over a rigid pin which firmly holds the end portion of the coil while the stringer is supported with its tape bearing on a fiat die surface.
  • a pin particularly when a cord is present, wedges between the head portions of the loops and the cord to hold the entire end portion of the coil, and especially the extreme cut end so that the latter cannot squirm away when pressure is applied.
  • the end portion only of the coil may be fused, preferably by the use of an ultrasonic tool, bearing on the threads and cord, whereupon the fused material fiows not only into the tape and cord, but also into the stitching.
  • This process has the further advantage of pulling the stitching tightly over the endmost complete loop portion so as further to strengthen the attachment of the coil to the tape.
  • FIG. 1 is a front View with parts in section, showing my invention applied to a separating end type zipper;
  • FIG. 2 is a top plan View showing the first step of the process of making my improved zipper
  • FIG. 3 is a section on line 3--3 of FIG. 2;
  • FIG. 4 is a section on line 4-4 of FIG. 2 with the fusing step about to be initiated;
  • FIG. 5 is a longitudinal central section during the fusing step
  • FIG. 6 is a perspective view of the supporting and threading tool used in my improved process
  • FIG. 7 is a detailed view of the finished product
  • FIG. 8 is a cross-section on line 8-8 of FIG. 7;
  • FIG. 9 is a section similar to FIG. 5 with a portion of the cord and stitching removed and illustrating a modification.
  • the fastening elements are secured in place, each by a line of stitching 15 which extends through the tape, through the cord and over the loop portions.
  • a portion of each coil is removed over a substantial distance adjacent the tape end to produce a cut end portion 16 which lies against the tape and which extends to a point close to the tape edge.
  • the stitching 15 extends. uninterruptedly over this cut end portion 16 through the cord and tape to the end of the tape.
  • a portion of each of the tapes 9 and 10 is covered by a crosstape reinforcement 17.
  • the components of the separating bottom connection may be the usual ones employing a pin 18, which may abut or even overlap the cut end portion 16, an anchor tube 19 and the box end fitting 20.
  • FIG. 1 also shows a slider 21 in position for insertion of the pin 18.
  • the operation is carried on with the two stringers of a complete zipper which are interengaged except near the end to which the pin 18 and tube 19 are to be applied. They are then placed against the fiat surface 22 of a die and pushed over a pair of pins 23 and 24 mounted on a block 25. These pins are properly dimensioned to enter the open loop portions: of the fastener elements and fit snugly between the cords 13 and the head portions 14 of the elements. As seen in FIG. 3, the pins may bear on the stitching threads 15 rather than directly against the cords.
  • the block 25 has stop shoulders 26 and 27 so that the heads of the endmost complete loops of the coil may abut against them with the pins projecting into a plurality of open loops, preferably two or three on each side.
  • the pins 23 and 24 thus firmly support the end portions of the coils while the coils are resting on the die surface 22 and while their heads 14 are bearing against a tongue 28 which projects from the block 25 centrally between the pins 23 and 24 for somewhat greater distances than the pins so as to maintain the entire end portions of the coils in a straight line.
  • the next or fusing step indicated in FIGS. 4 and 5 is preferably accomplished by an ultrasonic tool employing what is called a horn 29 having bifurcated portions 30 and 31 adapted to bear against the lines of stitching. While this horn may be dimensioned to cover a plurality of stitches as seen in FIG. 5, the pressure and thus the heat generated is concentrated in the region of the cut coil ends 16.
  • plastic filament is of some material, such as nylon, which will soften under a degree of heat which will not affect the cotton material of the tape, cor-d or threads.
  • the material of the filament will thus weld itself not only to the tape and cord, but also to the stitching which has been drawn down tightly over the endmost loop of each filament.
  • the problem of preventing the cut end portions 16 from squirming out of place is solved by the novel method of threading them over the pins 23 and 24 while the stringers are rigidly supported from the bottom of the -die surface 22 and at their head ends by the tongue 28.
  • the result as seen on anenlarged scale in FIGS. 7 and 8 is a secure and reliable attachment of the end portions of the coils without the use of extra rein-forcing members and without interfering materially with the flexibility of the coils themselves.
  • the stringers are thus ideally prepared by the attachment of end stop members such as those normally used in separating end connections.
  • the cord 13 is shown removed in the region of the pin 24.
  • the stringers are shown in an inverted position so that the ultrasonic horn 29 bears on the tape side.
  • the cut end 16 of the coil and the associated portion of the cord will be pressed down against the flat surface 22.
  • a fabric tape fastening means of the continuous plastic filament type carried by the tape and presenting a series of closely spaced and aligned open loop portions along the tape edge, said filament terminating a substantial distance from one end of the tape in an end portion which is positioned against the tape and which extends to a point close to said tape edge, and means for securing said filament to the tape comprising a line of stitching passing through the tape and over said loop portions, over said filament end portion and continuing through the tape beyond said end portion, said filament end portion being fused to said tape and stitching to anchor it firmly in place without materially affecting the flexibility of the adjacent loop portions.
  • a fabric tape fastening means of the continuous plastic filament type carried by the tape and presenting a series of closely spaced and aligned open loop portions along the tape edge, said filament terminating a substantial distance from one end of the tape in an end portion which is positioned against the tape and which extends to a point close to said tape edge, a cord extending through said open loop portions, over said filament end portion, and therebeyond to the end of the tape, and means for secu-ring said filament to the tape comprising a line of stitching passing through the tape and cord throughout the length of the tape and over said open loop portions, said filament end portion being fused to said cord and tape whereby it is firmly anchored in place.

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  • Decoration Of Textiles (AREA)
  • Slide Fasteners (AREA)
US505925A 1965-11-01 1965-11-01 Terminal portions of plastic filament zippers Expired - Lifetime US3333305A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US505925A US3333305A (en) 1965-11-01 1965-11-01 Terminal portions of plastic filament zippers
GB48145/66A GB1156826A (en) 1965-11-01 1966-10-26 Improvements in or relating to Sliding Clasp Fasteners.
FR81738A FR1497901A (fr) 1965-11-01 1966-10-27 Fermeture à glissières
BE688984D BE688984A (enrdf_load_stackoverflow) 1965-11-01 1966-10-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US505925A US3333305A (en) 1965-11-01 1965-11-01 Terminal portions of plastic filament zippers

Publications (1)

Publication Number Publication Date
US3333305A true US3333305A (en) 1967-08-01

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US505925A Expired - Lifetime US3333305A (en) 1965-11-01 1965-11-01 Terminal portions of plastic filament zippers

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US (1) US3333305A (enrdf_load_stackoverflow)
BE (1) BE688984A (enrdf_load_stackoverflow)
GB (1) GB1156826A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456306A (en) * 1966-10-15 1969-07-22 Opti Holding Ag Slide fastener with continuous coupling element
US3485691A (en) * 1966-12-05 1969-12-23 Waldes Kohinoor Inc Method of sealing the ends of zipper lengths cut from a continuous fastener chain
US3533140A (en) * 1968-02-06 1970-10-13 Waldes Kohinoor Inc Slide fastener manufacture
US3672008A (en) * 1970-05-04 1972-06-27 Textron Inc Slide fastener stop assembly
US3783476A (en) * 1971-10-13 1974-01-08 Opti Holding Ag Slide fastener stringer with stitched coupling element
US4182006A (en) * 1977-07-06 1980-01-08 Yoshida Kogyo Kabushiki Kaisha Slide fastener stringer
US4254539A (en) * 1977-05-10 1981-03-10 Yoshida Kogyo K K Slide fastener stringer
EP0064698A1 (en) * 1981-05-07 1982-11-17 Yoshida Kogyo K.K. A slide fastener stringer and method and device for forming an end thereof
US4377022A (en) * 1978-07-12 1983-03-22 Yoshida Kogyo K.K. Separable slide fastener
US4414718A (en) * 1981-05-07 1983-11-15 Yoshida Kogyo K. K. Separable slide fastener
EP1048239A3 (en) * 1999-04-22 2001-03-21 Ykk Corporation Slide fastener chain, method and apparatus for forming and thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5758968Y2 (enrdf_load_stackoverflow) * 1978-04-20 1982-12-16

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582456A (en) * 1948-10-15 1952-01-15 Talon Inc Slide fastener
US3103728A (en) * 1957-11-25 1963-09-17 Wahl Brothers Technique for assembling slide fasteners
US3162918A (en) * 1964-02-13 1964-12-29 Scovill Manufacturing Co Fastener end terminal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582456A (en) * 1948-10-15 1952-01-15 Talon Inc Slide fastener
US3103728A (en) * 1957-11-25 1963-09-17 Wahl Brothers Technique for assembling slide fasteners
US3162918A (en) * 1964-02-13 1964-12-29 Scovill Manufacturing Co Fastener end terminal

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456306A (en) * 1966-10-15 1969-07-22 Opti Holding Ag Slide fastener with continuous coupling element
US3485691A (en) * 1966-12-05 1969-12-23 Waldes Kohinoor Inc Method of sealing the ends of zipper lengths cut from a continuous fastener chain
US3533140A (en) * 1968-02-06 1970-10-13 Waldes Kohinoor Inc Slide fastener manufacture
US3672008A (en) * 1970-05-04 1972-06-27 Textron Inc Slide fastener stop assembly
US3783476A (en) * 1971-10-13 1974-01-08 Opti Holding Ag Slide fastener stringer with stitched coupling element
US4254539A (en) * 1977-05-10 1981-03-10 Yoshida Kogyo K K Slide fastener stringer
US4182006A (en) * 1977-07-06 1980-01-08 Yoshida Kogyo Kabushiki Kaisha Slide fastener stringer
US4377022A (en) * 1978-07-12 1983-03-22 Yoshida Kogyo K.K. Separable slide fastener
EP0064698A1 (en) * 1981-05-07 1982-11-17 Yoshida Kogyo K.K. A slide fastener stringer and method and device for forming an end thereof
US4414718A (en) * 1981-05-07 1983-11-15 Yoshida Kogyo K. K. Separable slide fastener
US4459723A (en) * 1981-05-07 1984-07-17 Yoshida Kogyo K. K. Slide fastener stringer and method and device for forming an end thereof
EP1048239A3 (en) * 1999-04-22 2001-03-21 Ykk Corporation Slide fastener chain, method and apparatus for forming and thereof
US6427295B1 (en) 1999-04-22 2002-08-06 Ykk Corporation Slide fastener chain, method and apparatus for forming end thereof
US6745443B2 (en) 1999-04-22 2004-06-08 Ykk Corporation Apparatus for end forming of slide fastener chain
US6757953B2 (en) 1999-04-22 2004-07-06 Ykk Corporation Method for forming an end of slide fastener chain

Also Published As

Publication number Publication date
BE688984A (enrdf_load_stackoverflow) 1967-04-27
GB1156826A (en) 1969-07-02

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