US3689980A - Method and apparatus for automatically affixing top stops on slider fastener chain - Google Patents

Method and apparatus for automatically affixing top stops on slider fastener chain Download PDF

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Publication number
US3689980A
US3689980A US86663A US3689980DA US3689980A US 3689980 A US3689980 A US 3689980A US 86663 A US86663 A US 86663A US 3689980D A US3689980D A US 3689980DA US 3689980 A US3689980 A US 3689980A
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United States
Prior art keywords
tape
tapes
chain
path
arms
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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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US86663A
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English (en)
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Yoshio Oyama
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    • 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
    • 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
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53291—Slide fastener
    • Y10T29/53296—Means to assemble stop onto stringer

Definitions

  • This invention relates to a method and apparatus for automatically affixing top stop members on fastener chains.
  • This invention is directed to a method and apparatus which not only eliminate the individual handling of single fastener lengths, required in the conventional assembling, but provides automatic mounting of top stop members on fastener chains delivered in continuous flow by a chain machine.
  • FIG. 1 is a fragmentary plan view of a fastener chain having top stops mounted in position according to the present invention
  • FIG. 2 is a schematic fragmentary side view of the apparatus constructed according to the invention.
  • FIG. 3 is a fragmentary plan view of a top stop carrier having a top stop transfer nest on each side;
  • FIG. 4 is a plan view, partially in section, showing the essential parts of the apparatus
  • FIG. 5 is a view showing the apparatus of FIG. 4 partially in front elevation and partially in sections taken along lines VV and V'V' of FIG. 4;
  • FIG. 6a, 6b and 6c are views showing the relative operative positions of fastener parts and moving elements of the apparatus.
  • FIG. 7 is a cross-sectional view of a chain stopping means.
  • the fastener chain 20 has a pair of stringer tapes 21, 21 having attached along the inner edges thereof a series of interlocking elements 22.
  • the fastener elements 22 are arranged in groups alongthe length of the stringer tapes 21 and each group of fastener elements is spaced away from adjacent groups by blank tape portions 23.
  • the top stops indicated at 24 are secured on the opposing inner edges of the blank tape portions 23 in a position close to the leading elements 22' of the element groups on respective stringertapes.
  • FIGS. 2 The operation and apparatus, which form apreferred I embodiment of this invention, are illustratedin FIGS. 2
  • FIG. 2 shows a pressure pad 29 which is held against the tape by means of a compression spring 30 for holding the'tapes securely on the table.
  • Element guide ridges 31, 31 are provided on the chain guide table 26 to permit the fastener elements to pass therealong and guide the chain in proper position.
  • a chain stopping means is provided underneath the path of travel of the chain 20 and generally indicated by the reference numeral 32, including a feeler finger 33 normally retractively projected from underneath into the path of tape travel.
  • a feeler finger 33 normally retractively projected from underneath into the path of tape travel.
  • the finger 33 is connected to one end of a feeler rod 34 which is pivotally movable about a pin 35 of a sliding member 77 which is slidably received in a frame 36.
  • the finger 33 is normally biased upwardly by a compression spring 37 placed underneath the feeler rod 34.
  • a pusher rod 40 is provided to push the angular rear end of the feeler rod 34 upwardly against the sloping inner wall 41 of the frame 36 when the finger 33 is pulled by a predetermined distance by the chain, thereby retracking the feeler finger 33 from elements 22 and allowing spring 39 to return the feeler finger and rod member 34 to their initial position.
  • Reference numeral 42 generally designates chain grippers symmetrically provided one on each side of the path of the chain 20.
  • Each gripper 42 comprises a pair of upper and lower arms 43 and 44 disposed substantially perpendicular to the path of tape travel and pivotally supported on pin members 45 and 46 extending between the side walls of a frame member 47.
  • These arms are provided with bifurcated fingers 48, 48 and 49, 49 at the ends extending into the path of the chain.
  • the fingers 48,48, 49, 49' of the upper and lower arms are biased away from each other by a compression spring 50.
  • the fingers of each arm are spaced apart by a predetermined distance as indicated at H in FIG. 4 so that the arms may have a grip on the blank tape portions 23 with fingers 48, 48' as well as on the tape portion adjacent the leading elements on respective tapes with fingers 49,49.
  • the upper and lower gripper arms have shoulder portion 51, 52 respectively.
  • the shoulders 51, 52 are provided in the inner surface thereof with laterally successive, mutually facing concave recesses 53 and 54 for accommodating a ball member 55.
  • the fingers of the upper and lower arms may be closed or opened by selectively shifting the ball member 55 between two resting positions defined by the recesses 53 and 54.
  • the fingers are opened by the action of spring 50. Shift into inner position of the ball member 55 causes the fingers to close against spring 50.
  • the frame member 47 supporting the gripper arms has a stud 56 loosely fitted into a bore 66 formed in a plate 57 which is supported on a vertical shaft 58 for oscillating movement thereabout. An oscillating movement is imparted to the moving plate 57by a link 59 connected thereto.
  • Mounted on the upper end of the vertical shaft 58 is an oscillating arm 60 whose free end is extended into a cut away portion or indentation 61 of a reciprocating rod member 62 interposed between the upper and lower arms 43, 44 of the tape gripper 42.
  • the reciprocating rod 62 retains therein the ball member 55 as mentioned hereinbefore and functions to shift the ball member between its outer and inner rest positions defined by the recesses 53 and 54 of the gripper arms in response to oscillating movement of the oscillating arm 60.
  • link 59 oscillates the moving plates 57 about the shafts 58 together with the gripper assembly 42 mounted thereon in the direction indicated by arrows in FIG. 4 thereby to spread the blank tape portions 23 symmetrically as shown in FIG. 6b.
  • Oscillating movement is selectively imparted to the arm 60 by link 63 through the vertical shaft 58.
  • the arm 60, link 63 and shaft 58 are adapted to follow the oscillating movement of the moving plate 57 so that unintentional shifting of the ball member which might be caused during the oscillating movement of the gripper arms may be prevented.
  • the top stop carriage generally designated at 64 swings down into the gap between the spreaded tapes for delivering and positioning top stops.
  • This top stop carrier as shown in FIG. 2, is supported on a machine frame 65 overhead the path of chain travel,
  • the carrier 64 is provided at the free end thereof with a slidable moving block 67 and a stationary block member 68, 68 disposed on each side of the moving block 67.
  • the sliding block 67 has laterally projecting head portions 69 and 70 which in cooperation with the stationary blocks 68, 68 define a top stop transfer nest 71 on each side of v the carrier adjacent to said free end.
  • the transfer nests 71, 71 are provided in such position on the carrier that the top stops resiliently held therein may be threaded on the inner edges of respective tapes when the carrier 64 is in its lowermost position.
  • the top stops members indicated at 24 in FIG. 3 are of the U-shaped type each having two legs.
  • the device of this type is well known in the art and has been used for many years.
  • the top stop members 24, 24 may be suitably fed to thenests 71, 71 of the carrier 64 from shoots each having a pusher member 72 adapted to push a top stop into the nest with the top stop legs disposed outwardly as shown in FIG. 3.
  • the stationary block members 68, 68 and moving block member 67 function also as a means for clamping the top stops in position on the tapes.
  • the top stops after being threaded over the inner edges of the spreaded tapes, may be securely clamped on the tapes by the sliding block member 67 moving in the direction indicated by an arrow in FIG. 3, compressing the top stops against the stationary block members 68, 68.
  • the top stops are introduced into the gap between the tapes in the direction as indicated in FIG. 6b and come into engagement with the respective tape edges at the position shown at W.
  • the chain is fed with the elements on the opposing tapes interconnected alternatively and this alternative interconnection of the elements necessarily results in the positional difference between the leading elements of the coupled elements groups.
  • One leading element precedes the other by a distance corresponding to its width.
  • the top stop carrier 64 has the transfer nests 71, 71 laterally in alignment with each other and, therefore, when one top stop is brought into an abutting relationship with a leading element on one tape, the other top stop is still left spaced away from the leading element on the opposite tape as shown in FIG. 6b.
  • the fastener chain is temporarily deflected thereby the bring the leading elements laterally in alignment with one another.
  • the apparatus according to the invention is provided with a means for resiliently and retractively maintaining the gripper arms, which means comprises a first plate member 73 secured to the undersurface of the moving plate 57 adjacent to the bore 66 in which the stud 56 of the frame member 47 is received.
  • a second plate member 74 is secured to the lower end of the stud 56 with one end in abutted against the first plate member 73 as shown at 75 in FIG. 4.
  • the other end of the second plate member 74 is normally biased away from the first plate 73 by a predetermined distance by means of a compression spring 76 interposed therebetween.
  • a method for automatically affixing top stops on a travelling slide fastener chain having a pair of stringer tapes, provided along the opposed inner edges thereof with groups of fastening elements and therebetween, with blank tape portions, each group of fastening elements being interconnected with a corresponding group on the opposite tape comprising (1) stopping the blank tape portions at a predetermined position in the path of the travelling chain, (2) spreading the stringer tapes of the stopped, blank tape portions in the plane of the fastener chain by applying a pair of grips of the fastener chain, one in a part of a stopped blank portion slightly spaced from the nearest leading fastening element and the otheradjacent to a leading fastening element, (3) delivering top stops on the inner edges of the spread tapes in a position close to each of said leading elements in said predetermined position and (4) clamping the top stops in said position.
  • Apparatus for automatically affixing top stops on a fastener chain travelling along a path of tape travel and having a pair of continuous stringer tapes, provided along the inner edges thereof with groups of fastening elements and spaced blank tape portions therebetween, each group of fastening elements being interconnected with a corresponding group on the opposite tape comprising in combination (1) means for stopping a spaced tape portion at a predetermined position of said path, 2) a pair of tape grippers provided in said position, one on each side of said path of tape travel, each comprising a pair of pivotally supported arm means for cooperatively gripping the stringer tapes at two positions, at different locations of said spaced tape portion, (3) means for mechanically controlling said tape grippers to grip and spread the tapes, (4) a top stop carrier mounted above sai redete mined osition for swin mg into and out 0 send path in the area of the tap s spread by said tape grippers for delivering a top stop on the inner edge of each tape in a position at least generally
  • said means for stopping the spaced tape portion comprises a feeler finger member normally retractively projected from underneath into the path of tape travel and adapted to rise into the spaced tape portion of the fastener chain.
  • each of said tape grippers comprises an upper and lower arm disposed substantially perpendicular to said path of travel of the chain and pivotally supported on a frame member, said arms being provided with bifurcated tape gripping fingers at the ends extending into said path and shoulder portions at the ends opposite thereto, spring means for normally biasing said ends of arms away from each other; mutually opposed, twin recesses in said shoulder portions of said upper and lower arms; and ball means shiftably retainable in said recesses for variable mutualpositioning of said arms.
  • said means for controlling the tape grippers comprises a plate mounted on a vertical shaft for oscillating movement thereabout and carrying said frame member of said gripper arms, an oscillating arm member mounted on said vertical shaft at the upper end thereof, a reciprocating rod member interposed between the upper and lower arms of said tape grippers and mechanically connected to said oscillating arm, and retaining said ball means for shifting it selectively between outer and inner positions defined by said recesses of gripper arms in response to oscillating movement of said oscillating arm.
  • said means for resiliently holding tape grippers comprises a first plate member secured to the undersurface of said plate and a second plate member secured to a stud of said frame member of the gripper arms, said stud being supportedly fitted through a bore formed in said moving plate, said second plate member having one end thereof abutted against said first plate member and the other end normally resiliently biased away from the first plate member by a predetermined distance by means of a compression spring interposed therebetween.
  • said top stop carrier includes a retractively slidable block member having laterally projected head portions and stationary block members disposed on the sides of said slidable block members, said laterally projecting head portions of the movable and stationary block members defining a top stop transfer nest on each side of the carrier.
  • top stop carrier comprises said means for clamping top stops, between said slidable and stationary block members.

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  • Slide Fasteners (AREA)
US86663A 1969-11-12 1970-11-04 Method and apparatus for automatically affixing top stops on slider fastener chain Expired - Lifetime US3689980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9057469 1969-11-12

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US (1) US3689980A (fr)
CA (1) CA929732A (fr)
DE (1) DE2056523C3 (fr)
FR (1) FR2069089A5 (fr)
GB (1) GB1335376A (fr)
NL (1) NL153106B (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792521A (en) * 1971-12-22 1974-02-19 Yoshida Kogyo Kk Combination slider assembling and end stop applying apparatus
US3872571A (en) * 1972-07-28 1975-03-25 Yoshida Kogyo Kk Method of and apparatus for finishing sliding clasp fasteners
DE2842973A1 (de) * 1977-10-06 1979-04-19 Yoshida Kogyo Kk Vorrichtung zum automatischen anbringen von oberen endanschlaegen an einer reissverschlusskette
US4217685A (en) * 1977-11-25 1980-08-19 Yoshida Kogyo K. K. Method of and apparatus for attaching top stops to a slide fastener chain
US4236304A (en) * 1977-12-30 1980-12-02 Yoshida Kogyo K.K. Device for spreading apart a pair of tapes
US4236293A (en) * 1977-12-30 1980-12-02 Yoshida Kogyo K.K. Method and apparatus for forming space sections in a slide fastener
US4236292A (en) * 1978-05-26 1980-12-02 Textron Inc. Method of positioning, gapping and applying stop to slide fastener
US4307511A (en) * 1978-08-04 1981-12-29 Yoshida Kogyo K.K. Apparatus for attaching an end stop to a slide fastener stringer
US4333232A (en) * 1978-05-26 1982-06-08 Talon, Inc. Apparatus for forming flypiece and slide fastener chain assembly
US4361946A (en) * 1979-12-14 1982-12-07 Yoshida Kogyo K.K. Method of and apparatus for attaching sliders and top end stops for slide fasteners
US4815205A (en) * 1987-04-11 1989-03-28 Opti Patent-, Forschungsund Fabrikations-Ag Apparatus for mounting metal beginning pieces on a continuous slide fastener chain
US4839956A (en) * 1987-04-25 1989-06-20 Yoshida Kogyo K. K. Method of and apparatus for attaching top stops to slide fastener chain
US4862585A (en) * 1987-08-11 1989-09-05 Yoshida Kogyo K. K. Apparatus for attaching top end stops to slide fastener chain
CN101152657B (zh) * 2006-09-27 2010-10-06 东莞大兴拉链厂有限公司 一种滚珠牙金属拉链的制造工艺及其成型模具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732000A (en) * 1956-01-24 Levine
US3588991A (en) * 1968-09-06 1971-06-29 Naegele Feinmaschinenbau Forming and attaching top stops to fastener chains

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732000A (en) * 1956-01-24 Levine
US3588991A (en) * 1968-09-06 1971-06-29 Naegele Feinmaschinenbau Forming and attaching top stops to fastener chains

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792521A (en) * 1971-12-22 1974-02-19 Yoshida Kogyo Kk Combination slider assembling and end stop applying apparatus
US3872571A (en) * 1972-07-28 1975-03-25 Yoshida Kogyo Kk Method of and apparatus for finishing sliding clasp fasteners
DE2842973A1 (de) * 1977-10-06 1979-04-19 Yoshida Kogyo Kk Vorrichtung zum automatischen anbringen von oberen endanschlaegen an einer reissverschlusskette
US4203207A (en) * 1977-10-06 1980-05-20 Yoshida Kogyo K.K. Apparatus for automatically applying top end stops to a slide fastener chain
US4217685A (en) * 1977-11-25 1980-08-19 Yoshida Kogyo K. K. Method of and apparatus for attaching top stops to a slide fastener chain
US4236293A (en) * 1977-12-30 1980-12-02 Yoshida Kogyo K.K. Method and apparatus for forming space sections in a slide fastener
US4236304A (en) * 1977-12-30 1980-12-02 Yoshida Kogyo K.K. Device for spreading apart a pair of tapes
US4236292A (en) * 1978-05-26 1980-12-02 Textron Inc. Method of positioning, gapping and applying stop to slide fastener
US4333232A (en) * 1978-05-26 1982-06-08 Talon, Inc. Apparatus for forming flypiece and slide fastener chain assembly
US4307511A (en) * 1978-08-04 1981-12-29 Yoshida Kogyo K.K. Apparatus for attaching an end stop to a slide fastener stringer
US4361946A (en) * 1979-12-14 1982-12-07 Yoshida Kogyo K.K. Method of and apparatus for attaching sliders and top end stops for slide fasteners
US4815205A (en) * 1987-04-11 1989-03-28 Opti Patent-, Forschungsund Fabrikations-Ag Apparatus for mounting metal beginning pieces on a continuous slide fastener chain
US4839956A (en) * 1987-04-25 1989-06-20 Yoshida Kogyo K. K. Method of and apparatus for attaching top stops to slide fastener chain
US4862585A (en) * 1987-08-11 1989-09-05 Yoshida Kogyo K. K. Apparatus for attaching top end stops to slide fastener chain
CN101152657B (zh) * 2006-09-27 2010-10-06 东莞大兴拉链厂有限公司 一种滚珠牙金属拉链的制造工艺及其成型模具

Also Published As

Publication number Publication date
DE2056523B2 (de) 1978-11-02
DE2056523C3 (de) 1979-06-28
DE2056523A1 (de) 1971-05-19
CA929732A (en) 1973-07-10
NL7016479A (fr) 1971-05-14
NL153106B (nl) 1977-05-16
FR2069089A5 (fr) 1971-09-03
GB1335376A (en) 1973-10-24

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