US3665561A - Slide fastener stringer - Google Patents

Slide fastener stringer Download PDF

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Publication number
US3665561A
US3665561A US93188A US3665561DA US3665561A US 3665561 A US3665561 A US 3665561A US 93188 A US93188 A US 93188A US 3665561D A US3665561D A US 3665561DA US 3665561 A US3665561 A US 3665561A
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US
United States
Prior art keywords
tape
slide
coupling element
coupling
shanks
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
US93188A
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English (en)
Inventor
Helmut Heimberger
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
Application filed by Opti Holding AG filed Critical Opti Holding AG
Application granted granted Critical
Publication of US3665561A publication Critical patent/US3665561A/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
    • A44B19/406—Connection of one-piece interlocking members
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/12—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing
    • D05B3/18—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing hooks or eyelets
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2303/00—Applied objects or articles
    • D05D2303/08—Cordage
    • 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

  • PATENTEUMM 30 I972 SHEET 10F 4 ATTORNEY PATENTEnwao I972 3,665 561 SHEET 2 or 4 HELMUT HEIMBERGER INVENTOR.
  • My present invention relates to slide fasteners and, more particularly, to a slide fastener having continuous coupling elements of the meandering or coil type which are affixed to respective support tapes by rows of stitching.
  • the coupling elements may be coils or meanders provided with closely spaced coupling heads adapted to engage between the coupling heads of the opposed element and produced, for example, from a continuous synthetic-resin monofilament, e.g. a thermoplastic, such as a polyamide (nylon) or a polyester.
  • the tapes or support bands have been composed of synthetic resin or fabric and may be knitted or woven. Furthermore, various forms of attachment have been used heretofore to affix each coupling element along the edge of the respective support tape of the slide-fastener half.
  • knitted support tapes may have the coupling elements incorporated into the fabric by knitting loops therearound or by providing openings in the fabric into which the heads of the coupling element are inserted.
  • Woven support tapes may include the coupling element as a wrap thread and may provide weft threads in engagement with the bights interconnecting the coupling heads of the particular element.
  • the coupling elements are secured by rows of stitching, especially chain stitching, which passes over the shanks of each turn or meander of the coupling element and may, if desired, form a guide for the slider.
  • Such systems have, however, the disadvantage that movement of the slider back and forth along the rows of the coupling head or along the coupling elements causes wear of the stitching affixing the coupling elements to the support tape and eventual deterioration of the slide fastener.
  • the rows of stitching are exposed, they are subject to breakage and, indeed, the deterioration of the system by which the coupling elements are affixed to the support tape, is a prime cause of breakdown of the slide fastener.
  • the stitching securing a coupling element to the support tape may include stitch loops which pass through a cord lying alongside the coupling element (i.e. along a flank thereof opposite the coupling heads) and engaging loops of the meander or coil from which the coupling element is constituted.
  • Systems in which the coupling element is knitted or woven into the support tape are, of course, of expensive manufacture whereas arrangements using filler cords have likewise been complex in prior-art constructions of the slide-fastener stringers.
  • Another object of this invention is to provide a slide fastener utilizing continuous couplingelements, namely, coils or meanders of monofilament synthetic resin, which provides a more secure attachment of the coupling element to the support tape.
  • Yet a further object of the invention is the provision of a slide fastener which will not manifest loosening of the attachment of the coupling element upon breakage of a small number of attachment loops or the breakage of the attachment thread.
  • a slide-fastener stringer which comprises a pair of support tapes and a respective continuous coupling element lying along an edge of the support tape and so arranged and constructed that each coupling head of the continuous coupling element is associated with at least one shank which lies against the support tape;
  • the means for attaching the coupling element to the respective support tape includes a row of chain stitching with a loop thereof engaging each of the shanks resting upon the support tape and passing through the tape on opposite sides thereof while the loop itself lies within the coil space.
  • each coupling element also provides shank portions of its turns or meanders which lie above the shank portions seized by the aforementioned loops to define an interior of the coil or meander through which the thread of the chain stitching passes. No threads of the chain stitching lie above the portions of the coupling elements most distal from the support tape.
  • the invention will probably be best understood in terms of a coupling element in the form of a coupling coil, the latter being generally a helix which may be somewhat distorted so that each turn forms an ellipse, ovoid, keyhole or like shape.
  • the invention is applicable to meanders of the type having a space through which the chain stitching may pass.
  • each turn will have a shank lying against the fabric of the support tape and a shank spaced thereabove connected with the first-mentioned shank by a bight set inwardly from the edge of the support tape and with the lower shank of the next turn by a coupling head.
  • the chain stitching of the present invention passes through the interior of the coil and engages only the shanks in contact with the support tape, i.e. the lower shanks.
  • the chain stitching is a single-thread chain stitch, i.e. a form of chain stitching in which, as the needle is passed through the fabric, a loop former engages the thread on the opposite side of the fabric from that through which the needle is thrust.
  • the loop former retains the loop until, at the next stitch, the needle again carries the thread through this loop and at the same time pays out a fresh loop to be engaged by the loop former.
  • chain stitching of this type is used, the successive loops of the chain stitch engage around and partially cover the shanks of the coupling element which lie against the support tape so that the entire seam is concealed within the coupling element.
  • the shanks of the coupling element are clamped around and engage or are thermally bonded to the threads of the row of chain stitching passing through the coupling element, the turns of the latter being appropriately deformed for this purpose.
  • This clamping and bonding action further prevents loosening of the attachment stitches, even In the event of breakage of the attachment thread, since the thread cannot pull out of the eye formed by each turn.
  • the chain stitching fulfills the function of a filler cord within the coupling element and restricts compression of the latter.
  • FIG. 1 is a diagrammatic perspective view illustrating the formation of a slide fastener in accordance with the principles of the present invention
  • FIG. 2 is a cross-sectional view illustrating the clamping engagement of the chain-stitch threads in accordance with the present invention
  • FIG. 3 is a detail view showing other aspects of the formation of the slide fastener
  • FIG. 4 is a view similar to FIG. 3 of another embodiment
  • FIGS. 1 and 2 of the drawing I have shown generally diagrammatically the principles of the present invention as applied to a helical coil coupling element and the slide-fastener stringer incorporating same.
  • the stringer comprises a pair of slide-fastener halves, each of which has a fabric support tape 1, a coil-tape continuous coupling element 2 composed of a synthetic-resin monofilament, and attachment means in the form ofa row 3 of general stitches traversing the support tape 1.
  • the coupling element in turn, is formed with a plurality of coupling members generally designated at 4 and comprising coupling heads 7 projecting beyond the edge 1a of the tape.
  • the heads 7 have outwardly projecting portions 7a and 7b adapted to engage behind similar portions of the heads of mating coupling members of the corresponding coupling element formed on the other tape of the stringer.
  • the head 8 is provided by kinking the monofilament 2 at 8, for example, after a preliminary flattening of the filament.
  • the shafts 6a and 6b extend rearwardly from each head 7 of a particular turn 4 and are joined by a bight 9 to the turn of a succeeding and preceding coupling head respectively.
  • the shanks 6a lie against the tape 1 while the shanks 6b are disposed thereabove. Between the shanks and within the coil there is formed an eye-shaped space Oe constituting the interior ofthe coil.
  • the chain stitching is of the single-thread type wherein a loop is formed above the tape 1 by thrusting the needle 40 of the chain-stitch sewing machine upwardly through the tape, a loop 31 being formed by engagement of a loop-former 42 with the thread as the needle is ,withdrawn.
  • the loop 5, 31 is stretched over each shank 6a as it is laid in place upon the tape 1 and is engaged, in turn, by the upwardly carried thread of the needle which, upon its subsequent introduction through the tape, passes through this loop.
  • a double strand of the thread ofthe chain stitch 3 overlies each of the shanks 6a and retains it against the tape and passes through the latter on either side of the shank.
  • the row 30f chain stitches lies wholly within the interior Oe of the coupling-element coil and is shielded by the shanks 6b against deterioration.
  • each coupling member is held in place by a respective loop 5 of the chain stitch.
  • end-stop members can be formed at the end of each coupling element, e.g. by the thermoplastic deformation of the coupling element and plug-andsocket members may be provided in the conventional fashion when separable slide fasteners are to be produced.
  • the slider is applied in the usual manner, and upon movement along the coupling elements, brings both of the elements of the two slide-fastener halves into mating engagement or separates them from one another.
  • the upper shank 6b can be pressed downwardly, e.g. by a forming roller 43 which may be connected, as shown at 44, to a source of ultrasonic welding energy, while being constituted as an ultrasonic welding electrode or sonotrode.
  • the shanks 6a and 6b are thereby clamped at 10 and thermally welded together against the two strands of the chain-stitch thread to lock each loop 5 and prevent release of the coupling element upon breakage of the stitch at any point or against withdrawal of the single-thread chain stitch.
  • the other member of the ultrasonic welding assembly can be an anvil underlying the tape as shown at 44.
  • the ultrasonic welding operation simultaneously constitutes a thermal fixing of the coupling element in its deformed state as shown in FIG. 2.
  • FIG. 3 shows the apparatus in somewhat simplified form.
  • the apparatus consists of an ordinary chain-stitch sewing machine and the various members of the apparatus, which are moved in synchronism, can be coupled with a cam drive of the sewing machine by conventional means.
  • the apparatus comprises an upper transport comb 11 and a lower transport comb 12 which are periodically withdrawn, reinserted and shifted in the direction of arrow 17 and are provided with teeth 11a and 12a, respectively, engaging between the turns 4 of the coupling element.
  • the lever 13 is of generally C-shaped caliper or yoke configuration with a bent arm on 21 extending from below upwardly around the tape 30 and provided with an eye 22 through which the monofilament 2 is fed.
  • the apparatus comprises retaining fingers 14 and 15 which are mounted on pivoting shafts 14a and 15a respectively coupled with the cam drive and serving to retain the monofilament 2 during each swing of the arm 21 to and fro across the tape 30.
  • the finger 15 thus forms the bight while the finger 14 forms the head of each coupling turn 4.
  • Finger 14, moreover, may press with sufficient force to deform the head 7 as already noted. Assume, therefore, that the system is in the position illustrated in FIG. 3, i.e. with the needle 40 penetrating the tape 30 and forming the beginning of a loop 32 which is engaged by the loop former 31.
  • the filament 2 is stripped across the tape 30 and is retained by the finger 15 while the finger 14 preparatorily impresses the filament to deform the latter preliminary to the return of the eye 22 in the counterclockwise direction.
  • the transport mechanism advances the tape in the direction of arrow 17 by a distance corresponding to one stitch and one turn of the coupling element, thereby stretching the loop 32 across the filament.
  • the eye 22 then carries the filament again across the tape to form the upper shank as the needle is thrust upwardly to engage the loop. The process is repeated over the length of the support tape.
  • the kink formed at 33 produces the head.
  • FIG. 4 I show a system wherein in place of the finger 15, a mandrel M is employed in the shaping of the coupling coil. It will be understood, however, that similar principles can be used to produce meandering coupling chains Furthermore, the apparatus can be doubled to form two slide-fastener halves simultaneously so that the opposing coupling elements can be interconnected in the production of the slide-fastener stringer. Each coupling element can be affixed to the respective support tape with several needles in, for example, the production of one-needle, two-needle, three-needle chain-stitch rows. The term stitch, therefore, is not intended to limit the number of needles with which the stitches are formed.
  • FIG. 5 I show a finished portion of a slide-fastener half in which the upper shank of each turn is fused to the lower shank as described previously in connection with FIG. 2. The depressed rear portions of the upper shank can be seen clearly at 6b in this Figure.
  • a slide-fastener stringer half comprising a support tape
  • a continuous coupling element formed with a plurality of coupling members matingly engageable with the coupling members of an opposing slide fastener half and having respective shanks lying along said tape, a row of chain stitches fastening said coupling element to said tape and including a respective loop extending over each of said shanks
  • said coupling element being a coil of a synthetic-resin monofilament and each of said members of said coil includes a coupling head, a lower shank extending from said head along said tape and an upper shank extending from said head above said lower head and defining the interior of said coil, said loops passing over only said lower shank and said row being formed within the interior of said coil.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Slide Fasteners (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
US93188A 1969-11-28 1970-11-27 Slide fastener stringer Expired - Lifetime US3665561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691959887 DE1959887A1 (de) 1969-11-28 1969-11-28 Reissverschluss

Publications (1)

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US3665561A true US3665561A (en) 1972-05-30

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US93188A Expired - Lifetime US3665561A (en) 1969-11-28 1970-11-27 Slide fastener stringer

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Country Link
US (1) US3665561A (es)
JP (1) JPS4932383B1 (es)
AT (1) AT319165B (es)
CS (1) CS156508B2 (es)
DE (1) DE1959887A1 (es)
DK (1) DK135700B (es)
ES (1) ES162583Y (es)
FI (1) FI53090C (es)
FR (1) FR2071699A5 (es)
GB (1) GB1260788A (es)
HU (1) HU170199B (es)
NL (1) NL148364B (es)
YU (1) YU33146B (es)
ZA (1) ZA707546B (es)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831228A (en) * 1971-12-03 1974-08-27 Financ Fr De Licences Et Breve Slide fastener chain
US3884168A (en) * 1972-07-21 1975-05-20 Opti Holding Ag Method of making slide-fastener halves
US3946465A (en) * 1975-01-09 1976-03-30 Textron Inc. Stringer for a slide fastener
US3975801A (en) * 1975-01-09 1976-08-24 Textron, Inc. Slide fastener stringer
US4034444A (en) * 1975-01-09 1977-07-12 Textron, Inc. Slide fastener stringer
US4210985A (en) * 1976-05-17 1980-07-08 Textron, Inc. Slide fastener stringer with folded and bonded continuous molded coupling element and method and apparatus for manufacturing
US20040255435A1 (en) * 2003-06-18 2004-12-23 Suburban Machine Co., Inc. Dba Suburban Manufacturing, Inc. Reusable hose bundling sleeve
US20080104804A1 (en) * 2003-06-18 2008-05-08 Suburban Machine Co., Inc. Dba Suburban Manufacturing, Inc. Reusable hose bundling sleeve
US20120110795A1 (en) * 2009-07-07 2012-05-10 Ykk Corporation Slide Fastener
US10711921B2 (en) 2015-03-13 2020-07-14 Bradley D Barger Reusable hose bundling sleeve

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2160267A1 (en) * 1971-11-16 1973-06-29 Cofpa Dimensionally stable tape - for joining ends of paper web dehydrating screens
JPS50123078U (es) * 1974-03-23 1975-10-08
JPS5578905A (en) * 1978-12-07 1980-06-14 Yoshida Kogyo Kk Slide fastener
FR3015192A1 (fr) * 2013-12-19 2015-06-26 Petrostan Artag Systeme de reparation de fermeture a glissiere et procede de reparation de fermeture a glissiere.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910755A (en) * 1956-02-16 1959-11-03 Hansen Harry Slide fasteners
FR1296706A (fr) * 1961-05-10 1962-06-22 Dispositif de fixation à curseur
US3359604A (en) * 1965-06-03 1967-12-26 Prym Werke William Sliding clasp fastener
US3541649A (en) * 1968-12-20 1970-11-24 Textron Inc Slide fastener

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910755A (en) * 1956-02-16 1959-11-03 Hansen Harry Slide fasteners
FR1296706A (fr) * 1961-05-10 1962-06-22 Dispositif de fixation à curseur
US3359604A (en) * 1965-06-03 1967-12-26 Prym Werke William Sliding clasp fastener
US3541649A (en) * 1968-12-20 1970-11-24 Textron Inc Slide fastener

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831228A (en) * 1971-12-03 1974-08-27 Financ Fr De Licences Et Breve Slide fastener chain
US3964135A (en) * 1972-07-21 1976-06-22 Opti-Holding Ag Slide-fastener halves
US3884168A (en) * 1972-07-21 1975-05-20 Opti Holding Ag Method of making slide-fastener halves
US4060886A (en) * 1975-01-09 1977-12-06 Textron Inc. Method and apparatus for manufacture of slide fastener stringer
US3975801A (en) * 1975-01-09 1976-08-24 Textron, Inc. Slide fastener stringer
US4034444A (en) * 1975-01-09 1977-07-12 Textron, Inc. Slide fastener stringer
US3946465A (en) * 1975-01-09 1976-03-30 Textron Inc. Stringer for a slide fastener
US4210985A (en) * 1976-05-17 1980-07-08 Textron, Inc. Slide fastener stringer with folded and bonded continuous molded coupling element and method and apparatus for manufacturing
US20040255435A1 (en) * 2003-06-18 2004-12-23 Suburban Machine Co., Inc. Dba Suburban Manufacturing, Inc. Reusable hose bundling sleeve
US20080104804A1 (en) * 2003-06-18 2008-05-08 Suburban Machine Co., Inc. Dba Suburban Manufacturing, Inc. Reusable hose bundling sleeve
US8127405B2 (en) 2003-06-18 2012-03-06 Suburban Machine Co., Inc. Reusable hose bundling sleeve
US8691036B2 (en) 2003-06-18 2014-04-08 Suburban Machine Co., Inc. Method of making a reusable hose bundling sleeve
US20120110795A1 (en) * 2009-07-07 2012-05-10 Ykk Corporation Slide Fastener
US9015909B2 (en) * 2009-07-07 2015-04-28 Ykk Corporation Slide fastener
US10711921B2 (en) 2015-03-13 2020-07-14 Bradley D Barger Reusable hose bundling sleeve

Also Published As

Publication number Publication date
FI53090C (es) 1978-02-10
SU365052A3 (es) 1972-12-28
CS156508B2 (es) 1974-07-24
FR2071699A5 (es) 1971-09-17
HU170199B (es) 1977-04-28
ES162583Y (es) 1971-07-16
DK135700B (da) 1977-06-13
FI53090B (es) 1977-10-31
AT319165B (de) 1974-12-10
DK135700C (es) 1977-11-28
NL7017277A (es) 1971-06-02
JPS4932383B1 (es) 1974-08-29
YU244770A (en) 1975-12-31
NL148364B (nl) 1976-01-15
ZA707546B (en) 1971-09-29
ES162583U (es) 1971-02-01
YU33146B (en) 1976-06-30
DE1959887A1 (de) 1971-06-16
GB1260788A (en) 1972-01-19

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