US3694868A - Slide fastener stringer - Google Patents

Slide fastener stringer Download PDF

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Publication number
US3694868A
US3694868A US4708A US3694868DA US3694868A US 3694868 A US3694868 A US 3694868A US 4708 A US4708 A US 4708A US 3694868D A US3694868D A US 3694868DA US 3694868 A US3694868 A US 3694868A
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US
United States
Prior art keywords
elements
leg portions
portions
stringer
predetermined direction
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
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US4708A
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English (en)
Inventor
Siegfried W Spindler
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.)
KARL F NAGELE FEINMASCHINENBAU
Original Assignee
KARL F NAGELE FEINMASCHINENBAU
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Publication of US3694868A publication Critical patent/US3694868A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • 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 fastener elements are secured to a carrier UNTTED STATES PATENTS tape by two rows of thread loops offset from the connecting portions in opposite directions longitudihally 3,015,868 1/1962 Ruhrmann ..24/205.13 C v of the leg ponions 3,189,964 6/1965 Galonska ..-...24/205.16 C 3,199,162 8/ 1965 Sohr ..24/205.16 C 7 Claims, 6 Drawing Figures PATENTEDHBIB I912 SHEET 2 0F 3 Fig.4
  • This invention relates to slide fasteners, and particularly to a slide fastener stringer essentially consisting of a carrier member such as a tape, a sequence of interlocking fastener elements constituted by respective sections of a suitably shaped plastic wire, and fastening means securing the elements to the carrier member.
  • the invention is concerned with the fastening means and with the configuration of the elements which makes the fastening means effective.
  • All continuous plastic slide fastener elements in present commercial use are derived from two basic shapes, a helix and a folded meander.
  • the basic shapes are deformed in each element to provide a locking head and two leg portions connected by the head, the head and leg portions being preferably arranged in a common plane approximately perpendicular to the direction in which the sequence of elements extends. Connecting portions of the plastic wire extend in that direction to connect leg portions of two adjacent elements.
  • Provisions should be made for preventing two engaged stringers from moving in a direction toward each other until the locking heads are disengaged and slide along the leg portions of the other stringer. Provisions should also be made for securing each element on the associated carrier member against movement away from the other stringer which might result in only partial engagement of the fastener elements of the two stringers during pull-up.
  • the known slide fasteners of the continuous, plastic-wire type are either complex in their structure and correspondingly difficult to manufacture, or they do not meet the aforementioned two requirements for securing the proper locking engagement of their locking heads.
  • the primary object of the instant invention is the provision of a very simple slide fastener stringer in which the relative movement of the engaged locking heads is limited to any desired minimal range, and in which the elements cannot move relative to the associated carrier tapes.
  • Another object is the provision of a slide fastener stringer which does not require a cord for fixedly securing the interlocking elements in the desired location and position on the carrier tape.
  • the invention provides a slide fastener stringer of the afore-described type in which the several interlocking elements are secured to the carrier member by two rows of thread loops extending in the direction of the element sequence.
  • the loops are locked in respective positions relative to the carrier member and the leg portions of the interlocking elements in which the loops engage the leg portions to secure the same to the carrier member, and the two rows of loops are offset from the connecting portions of the elements in opposite directions longitudinally of the leg portions, thereby preventing or limiting movement of each element on the carrier member longitudinally of its leg portions.
  • FIG. 1 shows a sequence of fastener elements for a stringer of the invention in a perspective view
  • FIG. 2 illustrates other fastener elements of the invention in a view corresponding to that of FIG. 1;
  • FIG. 3 shows a sequence of elements closely similar to those seen in FIG. 1 in bottom plan view
  • FIG. 4 shows the device of FIG. 3 in top plan view
  • FIG. 5 shows the device of FIG. 3 in section on the line V-V.
  • FIG. 6 shows one half of a slide fastener chain of the invention embodying the elements of FIG. 1 or FIG. 4 in fragmentary, perspective top view.
  • FIG. 1 there is seen a length of nylon wire 1 of basically circular cross section bent in such a manner that its consecutive longitudinal sections constitute a sequence of identical interlocking fastener elements, only three elements of the sequence being illustrated, but the sequence normally being elongated.
  • the longitudinal spacing of the elements and other dimensional relationships have been exaggerated in FIG. 1 as well as in FIGS. 2 and 6 of the drawing for the convenience of pictorial representation.
  • Each fastener element has three leg portions 3a, 3b, 30 which are elongated parts of the wire 1 extending practically in a common plane perpendicular to the length of the element sequence and are parallel to each other.
  • the bight portion 6 which connects the leg portions 3a and 3c into an approximate U-shape is flattened and thereby laterally enlarged to form a locking head 5.
  • An otherwise undistorted bight portion 7 of the wire 1 connects the leg portions 3b and 3c.
  • the two leg portions 3a, 3b are approximately aligned in a longitudinal direction and are each approximately half as long as the leg portion 30 which connects the two bight portions 6, 7.
  • Each connecting portion 2a integrally connects the leg portion 3a of one interlocking element to the leg portion 3b of an adjacent element. Two connecting portions 2a are thus associated with each element and common to a pair of adjacent elements. The connecting portions 2a are elongated approximately longitudinally of the sequence of elements.
  • leg portions 3a, 3b are joined to the associated connecting portion 2a by respective bends 8, and extend from the associated bends in opposite directions in the fastener partly illustrated in FIG. 1 whose elements are of the modified helix type.
  • the interlocking elements of the stringer partly shown in FIG. 2 are of the folded meander type.
  • the connecting portion 22b connects the two leg portions 23a of two adjacent elements which are associated with the locking heads, and the leg portions 23a therefore extend from the connecting portion 22b in a common direction.
  • the next connecting portion 220 connects two leg portions 23b which extend from the connecting portion 220 in a direction opposite to that of the leg portions 23a.
  • the leg portions 33a, 33b, 33c and the bight portions 36,37 including the head 35 therebetween do not differ significantly from the corresponding portions shown in FIG. 1.
  • the connecting portions 32d each extend between a leg portion 33a and a leg portion 33b as described with reference to FIG. 1. They are joined to the leg portions in a bend 38 whose concave face is recessed for receiving and holding a sewing thread as will presently be described with reference to FIG. 6.
  • the convex faces of the two bends 38 in each element abuttingly engage each other.
  • FIG. 6 shows as much of a slide fastener stringer of the invention as is needed for an understanding of the invention.
  • the sequence of fastener elements formed from a round plastic wire 1 in the stringer has been distorted as discussed above.
  • the elements are of the type shown in FIG. 1. Their connecting portions 2a are in contact with the top face of a carrier tape 12, and the elements are secured to the tape by a seam 10 of double-needle lock stitches.
  • the two needle threads 10a, 10b and the locking underthread 10c of the seam 10 are shown loosened for greater clarity.
  • the thread loops formed in a row by the needle thread 10a pass through the tape 12 and engage the legs of each element between the connecting portions 2a and the undistorted bight portions 7.
  • the row of thread loops formed by the needle thread 1012 engage the legs of each element between the connecting portion 2a and the locking head.
  • the underthread 10c holds the loops of the needle threads 10a, 10b in respective positions relative to the carrier tape 12 and the leg portions of the several interlocking elements in which the loops firmly engage the leg portions to secure the elements to the tape when the threads are tightened to form knots 15.
  • the two rows of knots formed by the tightened threads are offset from the connecting portions 2a in opposite directions longitudinally of the leg portions of the fastener elements.
  • the two rows of thread loops and knots confine the connecting portions 2a therebetween, and limit or prevent relative movement of each fastener element and the associated tape 12.
  • the identical cooperating other stringer, not shown, of the ultimately assembled fastener chain can move toward the illustrated stringer, or to the right, as viewed in FIG. 6, only until the locking heads on the other stringer are stopped by the nearer row of knots 15.
  • the sewing threads employed are thick enough almost to fill the space on the leg portions between the connecting portions 2a and the locking heads on the other stringer elements 14, thereby limiting further movement of the latter toward the right to a minimum.
  • the connecting portions 20 must be approximately equidistant from the two bight portions 6, 7 to provide adequate anchorage for the needle thread 10a between the connecting portion 2a and the bight portion 7.
  • the threads 10a, 10b, 100 may be used for securing the meander-type elements shown in FIG. 2 to the tape 12 without significant changes in the sewing operation. Substantially the same results are achieved.
  • two rows of thread loops at opposite sides of the row of connecting portions 2a may be set up by sewing methods other than those associated with a two-needle lock-stitch machine, and that the two rows of stitches may be held in the desired position relative to each other and to the fastener elements by locking means other than the illustrated underthread 100.
  • the fabric of the tape 12 contributes to the positioning of the needle thread loops in the illustrated embodiment, and may provide sufficient anchorage in other sewing patterns.
  • the rows of thread loops firmly attach the fastener elements to the tape and prevent undesired linear or angular movement of the elements relative to the tape in any direction.
  • the sections of the wire 1 which constitute the several sequential fastener elements are held in precisely spaced relationship by the thread loops and knots for matching engagement with the elements of another stringer.
  • the bight portions 7 are free from threads. They engage the rails of a slider employed with the illustrated stringer, and prevent the slider from abrading the sewing threads. A cord is not needed for holding the fastener elements of the invention in a precisely determined position.
  • a slide fastener stringer having a carrier member; a sequence of interlocking fastener elements, said sequence extending in a predetermined direction, said elements being constituted by respective sequential sections of a continuous plastic wire, each element having a plurality of substantially parallel leg portions elongated in a direction transverse to said predetermined direction, and two connecting portions in common with two other elements respectively, each connecting portion extending in said predetermined direction and connecting respective leg portions of two adjacent elements; and fastening means engaging said leg portions and securing said elements to said carrier member, the improvement in the fastening means which comprises:
  • each element having two bight portions spaced in said traverse direction and defining an approximate U-shape with two of said leg portions, said connecting portion being approximately equidistant from said bight portions.
  • the connected leg portions of said two adjacent elements constituting a pair of connected leg portions and extending from said common connecting portion in a common direction transverse to said predetermined direction, consecutive pairs of said leg portions extending in opposite transverse directions.

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  • Slide Fasteners (AREA)
US4708A 1969-01-23 1970-01-21 Slide fastener stringer Expired - Lifetime US3694868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691903339 DE1903339B1 (de) 1969-01-23 1969-01-23 Reissverschluss mit aus einem Kunststoff-Profilstrang gebildeten fortlaufenden Gliederreihen

Publications (1)

Publication Number Publication Date
US3694868A true US3694868A (en) 1972-10-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
US4708A Expired - Lifetime US3694868A (en) 1969-01-23 1970-01-21 Slide fastener stringer

Country Status (7)

Country Link
US (1) US3694868A (de)
BE (1) BE744797A (de)
CH (1) CH509052A (de)
DE (1) DE1903339B1 (de)
FR (1) FR2028954A1 (de)
IE (1) IE34327B1 (de)
NL (1) NL7000769A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800367A (en) * 1969-05-02 1974-04-02 Naegele Feinmaschinenbau Sliding clasp fastener
US3962756A (en) * 1973-09-21 1976-06-15 Yoshida Kogyo Kabushiki Kaisha Continuous coupling element for slide fasteners
US4449587A (en) * 1983-01-06 1984-05-22 Otis Engineering Corporation Surface controlled subsurface safety valves
US20130160249A1 (en) * 2010-09-17 2013-06-27 Ykk Corporation Fastener Stringer and Slide Fastener

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015868A (en) * 1958-03-28 1962-01-09 Talon Inc Slide fastener
CA680296A (en) * 1964-02-18 Walter E. Heilmann Sliding-clasp fasteners
US3189964A (en) * 1961-07-07 1965-06-22 Talon Inc Slide fastener stringer
US3199162A (en) * 1962-09-07 1965-08-10 Sohr Hans-Uhich Continuous slide fastener
US3249976A (en) * 1964-07-09 1966-05-10 Scovill Manufacturing Co Fastener stringer stitching
US3290747A (en) * 1965-02-18 1966-12-13 Scovill Manufacturing Co Plastic zippers and method of making the same
US3412438A (en) * 1965-06-01 1968-11-26 Talon Inc Slide fastener
US3484906A (en) * 1968-03-06 1969-12-23 Tadao Yoshida Slide clasp fastener

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538172A (de) * 1900-01-01
GB314329A (en) * 1928-06-25 1930-05-01 App Swift Sa Soc D Improvements in sliding clasp fasteners
US2183169A (en) * 1938-11-05 1939-12-12 Prentice G E Mfg Co Method of making fasteners
DE1070564B (de) * 1955-10-21
BE581225A (de) * 1958-08-07
CH378082A (de) * 1958-09-27 1964-05-31 Patentgesellschaft Plate & Co Gliederreihe für einen Reissverschluss und Verfahren zu deren Herstellung
DE1152072B (de) * 1959-08-03 1963-08-01 Ries G M B H Bekleidungsversch Reissverschluss
FR1276235A (fr) * 1960-12-14 1961-11-17 Perfectionnements apportés aux fermetures à glissière recouvertes avec ressorts hélicoïdaux
NO116345B (de) * 1961-08-25 1969-03-10 Sohr Hans Ulrich
US3316870A (en) * 1964-03-27 1967-05-02 Scovill Manufacturing Co Method of making coil type zipper fastener stringers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA680296A (en) * 1964-02-18 Walter E. Heilmann Sliding-clasp fasteners
US3015868A (en) * 1958-03-28 1962-01-09 Talon Inc Slide fastener
US3189964A (en) * 1961-07-07 1965-06-22 Talon Inc Slide fastener stringer
US3199162A (en) * 1962-09-07 1965-08-10 Sohr Hans-Uhich Continuous slide fastener
US3249976A (en) * 1964-07-09 1966-05-10 Scovill Manufacturing Co Fastener stringer stitching
US3290747A (en) * 1965-02-18 1966-12-13 Scovill Manufacturing Co Plastic zippers and method of making the same
US3412438A (en) * 1965-06-01 1968-11-26 Talon Inc Slide fastener
US3484906A (en) * 1968-03-06 1969-12-23 Tadao Yoshida Slide clasp fastener

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800367A (en) * 1969-05-02 1974-04-02 Naegele Feinmaschinenbau Sliding clasp fastener
US3962756A (en) * 1973-09-21 1976-06-15 Yoshida Kogyo Kabushiki Kaisha Continuous coupling element for slide fasteners
US4449587A (en) * 1983-01-06 1984-05-22 Otis Engineering Corporation Surface controlled subsurface safety valves
US20130160249A1 (en) * 2010-09-17 2013-06-27 Ykk Corporation Fastener Stringer and Slide Fastener

Also Published As

Publication number Publication date
NL7000769A (de) 1970-07-27
CH509052A (de) 1971-06-30
IE34327L (en) 1970-07-23
IE34327B1 (en) 1975-04-16
DE1903339B1 (de) 1969-12-04
BE744797A (fr) 1970-07-01
FR2028954A1 (fr) 1970-10-16

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