US3616939A - Separable zip fastener - Google Patents

Separable zip fastener Download PDF

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Publication number
US3616939A
US3616939A US58104A US3616939DA US3616939A US 3616939 A US3616939 A US 3616939A US 58104 A US58104 A US 58104A US 3616939D A US3616939D A US 3616939DA US 3616939 A US3616939 A US 3616939A
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US
United States
Prior art keywords
members
tape
junction
hand
zip fastener
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
US58104A
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English (en)
Inventor
Marcel Potin
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.)
Societe Financiere Francaise de Licences et Brevets
Original Assignee
Societe Financiere Francaise de Licences et Brevets
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Publication date
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Publication of US3616939A publication Critical patent/US3616939A/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
    • A44B19/38—Means at the end of stringer by which the slider can be freed from one stringer, e.g. stringers can be completely separated from each other
    • 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
    • Y10T24/2593—Zipper or required component thereof including complementary, aligning means attached to ends of interlocking surfaces

Definitions

  • ABSTRACT A zip fastener of the separable type wherein two rows of connecting members comprise at one of their ends a separable junction device consisting of two members, that is, a male member and a substantially box-shaped female member, formed by molding plastic material directly on the ends ofsaid two ends.
  • each carrier tape of the zip fastener Before molding said members there is cut in each carrier tape of the zip fastener a notch which extends from the inner edge of said tape to at least the middle line thereof, whereafter during the making of the members of said junction device, there is formed in each plate solid therewith on the one hand a flat face of relatively great thickness which is adjacent to the corresponding junction member, and on the other hand, on the opposite side, area having a series of transverse grooves formed therein which extends over said tape proper.
  • MARCEL POTIN ATTORNEY SEPARABLIJ ZIP FASTENER The present invention relates to zip fasteners of the socalled separable type.
  • the two component sections of zip fasteners of this type comprise a separable junction device at their ends where the control slide is positioned at the end of its opening stroke.
  • This device comprises on the one hand a box-shaped female member fitted to the corresponding end of one of the two rows of connecting members, which acts as a stop member to the slide, and on the other hand a male member adapted to be engaged into said box-shaped female member and provided at the corresponding end of the other row of connecting members.
  • this invention is concerned with zip fasteners of this character wherein the two members constituting said junction device are obtained by molding from plastic material, i.e., by embedding therein the corresponding ends of the two rows of connecting members and also the relevant portions of the tapes supporting these rows.
  • these junction members are characterized by obvious advantageous features in comparison with similar members which up to now consisted chiefly of metal staples secured by crimping to the ends of the tapes supporting the connecting members.
  • each one of these members is formed integrally, as a rule, with a plate inserted to the end of the relevant tape.
  • this plate is formed by molding plastic material directly on the tape and integrally with the corresponding junction member. Under these conditions the function of this plateconsists not only in improving the fastening of this junction member but also in stiffening the tape end and prevent this end from teasing out.
  • each end piece consisting of a male or female junction member and the associated small plate is characterized by a sudden variation in its flexibility along the longitudinal line corresponding to the ends of said transverse grooves.
  • the plate formed with these grooves obviously has a greater flexibility than the junction member proper which is substantially rigid.
  • this invention provides primarily a method of manufacturing zip fasteners of the type set forth which is characterized in that before moulding the above-defined members a notch is cut in each tape supporting the fastener, this notch extending from the inner edge of the tape to at least the middle line thereof, and preferably beyond this line. Then, when making the component elements of the junction device, each plate rigid therewith has formed therein on the one hand a flat face of relatively great thickness which is adjacent to the corresponding junction member, and on the other hand, on the opposite side, a zone formed with a series of transverse grooves which extends both over the location of the notch formed in the tape and over the latter. Finally, the ends of these grooves are connected to the corresponding fiat face through inclined portions having an obtuse angle of inclination.
  • the end members thus formed are free of any sudden variation in their flexibility along a same line.
  • they comprise two well-defined portions having different fiexibilities, and also intermediate zones therebetween.
  • FIG. 1 is a plane view from above showing the ends of the pair of tapes supporting a fastener, after cutting the notches therein;
  • FIG. 2 is a plane view from above showing the same ends after the molding of the plastic junction inserts thereon;
  • FIGS. 3 and 4 are cross-sectional views taken along the lines III-III and IV-IV of FIG. 2, respectively;
  • FIG. 5 is a fragmentary longitudinal section taken along the line V-V of FIG. 2;
  • FIG. 6 is a plane view from above of one of the junction members shown in FIG. 2, in this case the female member;
  • FIG. 7 is a fragmentary section taken on a different scale along the line III-III of FIG. 2.
  • the first step thereof consists in cutting two notches 2a and 2b in the tapes la and 1b supporting the two rows of connecting members 3a and 3b of the zip fastener being manufactured.
  • these notches are made at the ends of the tapes where the separable junction members 40 and 4b are to be fitted, the female member 4b being substantially boxshaped and adapted to receive the male member 4a.
  • each notch 2a or 2b extends from the inner edge of the corresponding carrier tape la or lb to the middle line A-B or C-D of the relevant tape, and preferably beyond this line.
  • each junction member After cutting the notches 2a and 2b the two junction members contemplated are formed by molding plastic material directly on the proper face of each carrier tape 10 and lb. Each junction member will thus be located at the end of the corresponding row of connecting members, 3a and 3b respectively; however, the box-shaped female: member 412 is connected to these molded members by another element 4c also of molded plastic material, which has roughly the shape of a small longitudinal bar. Each junction member is associated with a plastic plate formed by molding over the end of the relevant tape Ia or lb.
  • Each plate comprises on the one hand a relatively thick flat face 6a or 6b adjacent to the corresponding junction member 4a or 4b, and on the other hand a zone denoted by the general reference symbol 5a or 5b which comprises a series of grooves 7a and 7b extending in the transverse direction.
  • one portion of the two zones 5a and 5b extends over the corresponding carrier tape la or lb, another portion of each one of said zones registering with the notch 2a or 2b cut beforehand in the tape.
  • the thickness corresponding to the tape material thus removed is filled with plastic material during the molding operation in order to provide a surface underneath which is flush with the remaining rear surface of the tape.
  • grooves 7a and 7b The depth of grooves 7a and 7b is such that the correspond ing tape 1a or 1b is uncovered in the zone thereof underlying the plate 5a or 5b.
  • the grooves thus provided form between them plastic ribs 8a or 8b of which the upper surface is flush with the corresponding surface of the adjacent face 6a or 6b.
  • the ends of these grooves are interconnected by a rib 9a or 9b also flush with the upper surface of faces 6a or 6b.
  • grooves 7a and 7b are connected to the adjacent faces 6a or 6b through inclined portion of which the angle of inclination or exceeds (see FIG. 3). Besides, this angle is preferably very obtuse; thus, an angle of about 135 may be used.
  • This very particular shape is advantageous in that it avoids any risk of bending at the ends of the transverse grooves 7a or 7b.
  • the other features of this invention also assist in eliminating any risk of accidental and accentuate bending or breaking resulting from a sudden variation in the transverse flexibility of the end members.
  • portions 5a or 512 comprising transverse grooves are not connected directly with the junction members 4a or 4b, but a flat face 60 or 6b having a certain thickness is provided therebetween, in order to constitute an intennediate zone between these two portions of which one is substantially rigid and the other is flexible.
  • the portions 5a and 5b comprising said transverse grooves extend both over the carrier tapes and over the areas thereof which have been removed as a consequence of the cutting of notches 2a and 2b therein.
  • the parts thus obtained have a good resistance to traction stresses exerted in the transverse direction.
  • the notches 2a and 2b cut initially in the end portions of the carrier tapes la and lb are also so designed thatin the longitudinal direction the various portions of each end member extend both over the corresponding carrier tape 1a or lb and over the zone thereof which has been removed completely as a consequence of the cutting of said notches.
  • these notches extend from the end edges of the two tapes to a transverse line lF (FIG. 2).
  • transverse ribs are provided, as shown at Ma and 10b respectively, on the opposite face of the supporting tapes la and lb (see FIGS. 4 and 6). These ribs are also formed by molding plastic bodily with the plates 50 and 5b and junction members 4a and 4b.
  • ribs 10a and 10b Due to the presence of said ribs 10a and 10b on the opposite face of the tapes the fastening of the junction members to these tapes is improved to a substantial degree.
  • the ends of these ribs may advantageously be connected to the junction members through an angle ,3 greater than 90". Besides, this angle may also have the same value as the above-defined angle of inclination a of the corresponding ends of grooves 7a and 7b formed on the opposite face.
  • the ribs and 10b may have a length equal to or other than that of grooves 7a and 7b. On the other hand, these ribs may either register with those 8a and 8b fonned between these grooves or be coincident with these grooves.
  • junction members provided at the ends of the zip fasteners obtained by using the method of this invention should not be construed as being strictly limited by the specific and single example described hereinabove by way of illustration. Anybody skilled in the art will readily understand that various modifications may be brought thereto without departing from the spirit and scope of the invention.
  • the manufacturing method according to this invention may be used for making zip fasteners of the so-called separable type, that is, fasteners wherein the two component sections can be separated completely from each other.
  • the connecting members provided on these two sections may be of any desired type.
  • connecting members are shown which consist of a continuous wire wound to a variable pitch helix.
  • this only an example for these connecting members may consist as well of other known means such as separate metal staples or the like.
  • Zip fastener of the separable type comprising two rows of connectin members which comprise at one end a separable unction evrce consisting of two members, that is, a male member and a substantially box-shaped female member, respectively, of molded plastic material directly over the ends of said two rows, each member of said junction device being rigid with a molded plastic plate fixed on the end of the corresponding carrier tape, each carrier tape of said zip fastener comprising a notched portion extending from the inner edge of said tape to at least the middle line thereof, each plate rigid with ajunction member comprising on the one hand a flat face of relatively great thickness which is adjacent the corresponding junction member, and on the other hand on the opposite side, a zone formed with a series of transverse grooves, said last named zone extending both over one portion of the notch formed in said tape and over one portion of said tape, an inclined surface having an obtuse angle of inclination being provided on the other hand for connecting the ends of said grooves to the corresponding flat face.

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  • Package Frames And Binding Bands (AREA)
  • Slide Fasteners (AREA)
US58104A 1969-08-06 1970-07-24 Separable zip fastener Expired - Lifetime US3616939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6926959A FR2055905A5 (enrdf_load_stackoverflow) 1969-08-06 1969-08-06

Publications (1)

Publication Number Publication Date
US3616939A true US3616939A (en) 1971-11-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
US58104A Expired - Lifetime US3616939A (en) 1969-08-06 1970-07-24 Separable zip fastener

Country Status (4)

Country Link
US (1) US3616939A (enrdf_load_stackoverflow)
DE (1) DE2038532C3 (enrdf_load_stackoverflow)
FR (1) FR2055905A5 (enrdf_load_stackoverflow)
GB (1) GB1314362A (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911536A (en) * 1973-03-20 1975-10-14 Yoshida Kogyo Kk Slide fasteners having a separable end connection
US3922761A (en) * 1972-09-01 1975-12-02 Opti Holding Ag Separable slide-fastener stringer
US3971868A (en) * 1974-02-07 1976-07-27 Yoshida Kogyo Kabushiki Kaisha Fabric tape for slide fastener stringers with means to prevent unraveling at its severed ends
US4001922A (en) * 1975-11-03 1977-01-11 Textron, Inc. Tape reinforcements for slide fasteners
DE2915635A1 (de) * 1978-04-19 1979-10-25 Yoshida Kogyo Kk Teilbarer reissverschluss
US4485532A (en) * 1980-09-10 1984-12-04 Yoshida Kogyo K. K. Separable slide fastener
US4488337A (en) * 1980-07-12 1984-12-18 Yoshida Kogyo K. K. Separable slide fastener and method of attaching the same to knit fabrics
US4490890A (en) * 1980-09-10 1985-01-01 Yoshida Kogyo K.K. Separable slide fastener
US4742603A (en) * 1985-06-26 1988-05-10 Yoshida Kogyo K.K. Separable bottom-end-stop assembly for separable slide fastener
US20030115725A1 (en) * 2001-12-20 2003-06-26 Satoshi Matsumoto Separable bottom end stop for concealed slide fastener
US20030213107A1 (en) * 2002-05-20 2003-11-20 Ykk Corporation Slide fastener having separable bottom end stop
US20040181920A1 (en) * 2003-03-20 2004-09-23 Hisayoshi Mizuhara Slide fastener with separable bottom end stop
US20040181919A1 (en) * 2003-03-20 2004-09-23 Hisayoshi Mizuhara Slide fastener with seperable bottom end stop
US6865782B2 (en) * 2001-12-21 2005-03-15 Ykk Corporation Slide fastener with separable bottom stop assembly and method of manufacturing the same
US20070074380A1 (en) * 2005-10-04 2007-04-05 Satoshi Matsumoto Waterproof slide fastener
US20080201918A1 (en) * 2007-02-27 2008-08-28 Ykk Corporation Zip fastener end stop
US20110113596A1 (en) * 2009-11-18 2011-05-19 Ykk Corporation Slide fastener
US20110209308A1 (en) * 2010-03-01 2011-09-01 Riri Sa Bottom End Stop for a Slide Fastener

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110636A (en) * 1980-12-26 1982-07-09 Tanaka Kikinzoku Kogyo Kk Electrical contact material for sealing
JPH06245806A (ja) * 1993-02-26 1994-09-06 Yoshida Kogyo Kk <Ykk> 隠しスライドファスナーの開離嵌挿具装着成形方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR84432E (fr) * 1963-10-07 1965-02-05 Fermeture Eclair Perfectionnement aux fermetures à glissière à éléments séparables
US3377668A (en) * 1964-12-21 1968-04-16 Talon Inc Separating end connection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213655B (de) * 1961-02-11 1966-03-31 Ruhrmann Fa Dr Ing Josef Trennbarer Reissverschluss
FR1358511A (fr) * 1963-02-25 1964-04-17 Fermeture Eclair Perfectionnement aux fermetures à glissière à éléments séparables
GB1024733A (en) * 1963-04-16 1966-04-06 Lightning Fasteners Ltd Improvements in or relating to sliding clasp fasteners
DE1951327U (de) * 1966-10-12 1966-12-08 Prym Werke William Teilbarer reissverschluss.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR84432E (fr) * 1963-10-07 1965-02-05 Fermeture Eclair Perfectionnement aux fermetures à glissière à éléments séparables
US3377668A (en) * 1964-12-21 1968-04-16 Talon Inc Separating end connection

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922761A (en) * 1972-09-01 1975-12-02 Opti Holding Ag Separable slide-fastener stringer
US3911536A (en) * 1973-03-20 1975-10-14 Yoshida Kogyo Kk Slide fasteners having a separable end connection
US3971868A (en) * 1974-02-07 1976-07-27 Yoshida Kogyo Kabushiki Kaisha Fabric tape for slide fastener stringers with means to prevent unraveling at its severed ends
US4001922A (en) * 1975-11-03 1977-01-11 Textron, Inc. Tape reinforcements for slide fasteners
DE2915635A1 (de) * 1978-04-19 1979-10-25 Yoshida Kogyo Kk Teilbarer reissverschluss
US4488337A (en) * 1980-07-12 1984-12-18 Yoshida Kogyo K. K. Separable slide fastener and method of attaching the same to knit fabrics
US4485532A (en) * 1980-09-10 1984-12-04 Yoshida Kogyo K. K. Separable slide fastener
US4490890A (en) * 1980-09-10 1985-01-01 Yoshida Kogyo K.K. Separable slide fastener
US4742603A (en) * 1985-06-26 1988-05-10 Yoshida Kogyo K.K. Separable bottom-end-stop assembly for separable slide fastener
EP1321062A3 (en) * 2001-12-20 2004-07-28 Ykk Corporation Separable bottom end stop for concealed slide fastener
US6704975B2 (en) * 2001-12-20 2004-03-16 Ykk Corporation Separable bottom end stop for concealed slide fastener
US20030115725A1 (en) * 2001-12-20 2003-06-26 Satoshi Matsumoto Separable bottom end stop for concealed slide fastener
US6865782B2 (en) * 2001-12-21 2005-03-15 Ykk Corporation Slide fastener with separable bottom stop assembly and method of manufacturing the same
US20030213107A1 (en) * 2002-05-20 2003-11-20 Ykk Corporation Slide fastener having separable bottom end stop
US20040181920A1 (en) * 2003-03-20 2004-09-23 Hisayoshi Mizuhara Slide fastener with separable bottom end stop
US20040181919A1 (en) * 2003-03-20 2004-09-23 Hisayoshi Mizuhara Slide fastener with seperable bottom end stop
US20070074380A1 (en) * 2005-10-04 2007-04-05 Satoshi Matsumoto Waterproof slide fastener
US7500291B2 (en) * 2005-10-04 2009-03-10 Ykk Corporation Waterproof slide fastener
US20080201918A1 (en) * 2007-02-27 2008-08-28 Ykk Corporation Zip fastener end stop
EP1964486A1 (en) 2007-02-27 2008-09-03 Ykk Corporation Zip fastener end stop
US8091187B2 (en) 2007-02-27 2012-01-10 Ykk Corporation Zip fastener end stop
US20110113596A1 (en) * 2009-11-18 2011-05-19 Ykk Corporation Slide fastener
EP2324726A2 (en) 2009-11-18 2011-05-25 YKK Corporation Slide fastener
US8402613B2 (en) 2009-11-18 2013-03-26 Ykk Corporation Slide fastener
US20110209308A1 (en) * 2010-03-01 2011-09-01 Riri Sa Bottom End Stop for a Slide Fastener

Also Published As

Publication number Publication date
DE2038532A1 (de) 1971-02-18
FR2055905A5 (enrdf_load_stackoverflow) 1971-05-14
DE2038532B2 (de) 1980-10-23
GB1314362A (en) 1973-04-18
DE2038532C3 (de) 1981-07-30

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