US3863323A - Method and related apparatus for forming an element-free gap in a continuous slide fastener chain - Google Patents

Method and related apparatus for forming an element-free gap in a continuous slide fastener chain Download PDF

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Publication number
US3863323A
US3863323A US384177A US38417773A US3863323A US 3863323 A US3863323 A US 3863323A US 384177 A US384177 A US 384177A US 38417773 A US38417773 A US 38417773A US 3863323 A US3863323 A US 3863323A
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US
United States
Prior art keywords
interengaged
pair
die
stringer tapes
parts
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
US384177A
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English (en)
Inventor
Ikuo Takamatsu
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.)
YKK Corp
Original Assignee
Yoshida Kogyo KK
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Application filed by Yoshida Kogyo KK filed Critical Yoshida Kogyo KK
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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
    • A44B19/58—Removing interlocking members to produce gaps
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5101—Slide fastener or slide fastener element
    • 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
    • Y10T29/53309—Disassembly means

Definitions

  • a method and related apparatus for forming an element-free gap in a continuous slide fastener chain [30] Foreign Apphcatlon Priority Data which method is characterized by causing the interen- Aug. Japan g g parts of the fastener filements on the chain to pivot on themselves in a direction opposite to each other, with the results that the adjacent tapes edges are spread apart to expose therebetween said interen- [58] held of Search gaged parts of the elements which are cut along a length corresponding to a desired gap to be formed.
  • the primary object of the invention is to provide an improved method of producing element-free gaps in a continuous length chain of sliding clasp fastener, which method will permit adjacent edges of the stringer tapes to be spread apart widely enough for exposure of the interengaged parts of the fastener elements that are to be cut, without imposing undue tension. upon the tape fabric and particularly upon the element-securing.
  • Another object of the invention is to provide an apparatus tailored to carry the above method into practice, which apparatus is relatively simple in construction and highly reliable inoperation, including structural features to permit of gapproduction without dam age to the tapes and without forcing the stitches to move relative to the elements.
  • FIG. 4 is a similar view but showing the chain spread apart at its adjacent tape edges, with the coupled. parts of fastener elements exposed thereat;
  • FIG. 5 is a similar view but showing the coupled parts of the elements severed off; and j
  • FIG. 6 is a fragmentary plan view of a piece of slide fastener chain with an element-free gap formed therein.
  • the slide fastener 'chain which is to be processed for gap production according to the invention comprises a pair of oppositely disposed stringer tapes T,T each carrying along their adjacent longitudinal edges a row of continuous fastener elements E of for example a coiled structure attached by stitches S to the tapes, as shown in FIG. 6. f
  • a gap-forming apparatus 10 I of the invention which comprises a ram member 11, a punch carrying block .12 connected to and vertically reciprocable with said ram member and a base 13 disposed in vertically spaced relation to the block 12 and carrying various operating parts hereinafter described.
  • Designated at 14,14 area first pair of spaced apart means cooperating with a second pair of similar means F.
  • the first pair of gripping means 14,14 project downwa'rdly from the punch block 12 and are movable relative thereto'through the medium of respective spring members 15,15 accommodated in the block 12.
  • FIG. 1 is a front elevation of a gap forming apparatus employed in accordance with the invention.
  • FIG. 2 is a sectional front elevation of the same;
  • FIG. 3 is a fragmentary transverse cross section showing the relationship of the important parts of the apparatus, with-the fastener chain as at thebeginning of a gap forming operation;
  • the die means or cutting anvil l9 coacting with the cutting means or punch 18 is carried in the block 17 and held in movable relation thereto by a pair of spring members 20,20 accommodatedin the block 17 and connecting opposite sides of the anvil 19 to the block 17, as best shown in FIG. 2.
  • the cutting anvil 19 has upwardly inclined or tapered top surfaces 21,21 against which the fastener tapes adjacent the elements E are allowed to rest during the gap forming operation hereinafter described.
  • an element-receiving recess 22 dimensioned to accommodate therein a length of two opposed interengaged fastener elements E as better seen'in FIGS. 3 to 5.
  • a punch-receiving opening 23 Centrally of the recess 22 is formed a punch-receiving opening 23 positioned in registry with the path of the cutting punch 18 and dimensioned to fit the width thereof. More specifically, the recess 22 is defined by coacting bladed edges 24,24 whichcoact withthe cutting. punch 18 in severing the elements E off the fastener chain F as best depicted in FIG. 5.
  • Designated at 25 is a sliding cam block-mounted on the base 13 and horizontally slidable relative thereto.
  • the cam block.25' has a first flat horizontal surface 26. and a secondflat horizontal surface 27 higher in level than the first surface 26, said first surface 26 normally engageable with the bottom portion of the cutting anvil 19 and an upwardly inclined cam surface 28 adjoining said first and second surfaces normally engageable with a corresponding cam surface 29 formed on one side or the right-hand-half of the anvil 19 as viewed in FIG. 2, the term normally being used to denote a retracted position of the anvil l9 prior to the spreading apartof the tape edges.
  • FIGS. 3 to of the drawing are provided to illustrate the sequential steps of gap production.
  • the fastener chain F is mounted on the apparatus 10 with its stringer tapes T,T opposite to the elements E interposedbetween the first and second grippers 14,14 and 16,16 respectively and with the coil elements E received in the recess 22,. whereupon the first grippers 14,14 descend into abutting engagement with the second grippers 16,16 thereby to grip the tape fabric of the opposed stringers hard enough to prevent the latter from moving during subsequent spreading-apart and cutting operations.
  • the spring members 15,15 serve to take up excess pressure of the first grippers 14,14 which would otherwise tend to impair the tapes T,T'.
  • the sliding cam block 25 is now moved horizontally toward the left as viewed in FIG. 2 until the cam surface 28 disengagesfrom the corresponding surface 29 of the anvil l9 and the bottom portion of the anvil l9 rides on the second surface 27 of the cam block 25.
  • This movement of the cam block 25 causes the cutting anvil 19 to move upwardly relative tothe die block 17 against tension in the springs 20,20.
  • raisingthe cutting anvil 19 causes the interengaged parts E of the coiled elements E within the recess 22 to pivot on themselves in a direction opposite to each other, with opposed tapes T,T adjacent the elements E deflected upwardly along the tapered surfaces 21,21 respectively to spread apart the adjacent tape edges for a distance corresponding to the interengaged part E to be severed.
  • the spreading-apart operation is followed by the cutting operation in which the cutting punch 18 moves vertically down into the opening 23 and in so doing coacts with the bladed edges 24,24 of the cutting anvil 19 thereby cutting the interengaged parts E along a length corresponding to a desired gap to be formed, as depicted in FIG. 5.
  • a method of forming an element-free gap in a continuous slide fastener chain having a pair of oppositely disposed stringer tapes each carrying along their adjacent longitudinal edges a row of fastener elements whose coupling parts are interengaged comprises gripping the stringer tapes at points opposite to the rows of fastener elements, causing the interengaged parts of the fastener elements to pivot on themselves in a direction opposite to each other about a longitudinal axis of the pair of stringer tapes to spread apart the adjacent tape edges widely enough to expose therebetween said interengaged parts, and cutting the thus exposed interengaged parts off of the fastener chain along a length corresponding to a desired gap to be formed.
  • An apparatus for forming an element-free gap in a continuous slide fastener chain having a pair of oppositely'disposed stringer tapes each carrying along their adjacent longitudinal edges a row of coiled fastener elements whose coupling parts are interengaged which apparatus comprises means for gripping the stringer tapes at points opposite to the row of fastener elements, means for pivoting the interengaged parts of the fastener elements on themselves in a direction opposite to each other about a longitudinal axis of the pair of stringer tapes to spread apart the adjacent tape edges widely enough to expose therebetween said interengaged parts, and means for cutting the thus exposed interengaged parts of the elements off of the fastener chain.
  • An apparatus for forming an element-free gap in a continuous slide fastener chain having a pair of oppositely disposed stringer tapes each carrying along their adjacent longitudinal edges a row of coiled fastener elements whose coupling parts are interengaged which apparatus comprises a vertically movable punch carrying block, a base disposed in vertically spaced relation thereto, a die carrying block mounted on said base, a firstpair of gripping means projecting downwardly from said punch block and a second pair of gripping means projecting upwardly from said die carrying block, said first and second pairs of gripping means gripping therebetween the stringer tapes at points opposite to the rows of fastener elements, a die means carried in and movable relative tosaid die carrying block, said die means having upwardly inclined or tapered top surfaces against which the stringer tapes bear when said die means is in an upper position and an element-receiving recess in the apex of said tapered surfaces, means for moving said die means upward to bear against said stringer tapes to pivot of the fast
  • An apparatus as defined in claim 3 which further includes a spring member connecting said first pair of gripping means resiliently to said punch carrying block.
  • An apparatus as defined in claim 3 which further includes a spring member adapted to connect said die means resiliently to said die carrying block.
  • said means for moving said die means upward comprises a sliding cam block to move said die means vertically into and away from the position in which the interengaged parts of the fastener elements pivot on themselves in a direction opposite to each other.

Landscapes

  • Slide Fasteners (AREA)
US384177A 1972-08-07 1973-07-31 Method and related apparatus for forming an element-free gap in a continuous slide fastener chain Expired - Lifetime US3863323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47079005A JPS517417B2 (es) 1972-08-07 1972-08-07

Publications (1)

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US3863323A true US3863323A (en) 1975-02-04

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Application Number Title Priority Date Filing Date
US384177A Expired - Lifetime US3863323A (en) 1972-08-07 1973-07-31 Method and related apparatus for forming an element-free gap in a continuous slide fastener chain

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US (1) US3863323A (es)
JP (1) JPS517417B2 (es)
BE (1) BE803208A (es)
BR (1) BR7306024D0 (es)
CA (1) CA998519A (es)
DE (1) DE2339763C3 (es)
DK (1) DK133266C (es)
FR (1) FR2199445B1 (es)
GB (1) GB1421501A (es)
HK (1) HK32177A (es)
IT (1) IT996596B (es)
MY (1) MY7900059A (es)
NL (1) NL165917C (es)
SE (1) SE399812B (es)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958319A (en) * 1974-01-31 1976-05-25 Yoshida Kogyo Kabushiki Kaisha Apparatus for producing element-free gaps in a continuous fastener chain
US4224730A (en) * 1978-07-12 1980-09-30 Yoshida Kogyo K.K. Method and apparatus for removing fastener elements from a slide fastener chain
US4232438A (en) * 1977-12-07 1980-11-11 Yoshida Kogyo K.K. Method and apparatus for providing space sections in a continuous slide fastener chain
US4236292A (en) * 1978-05-26 1980-12-02 Textron Inc. Method of positioning, gapping and applying stop to slide fastener
US4246681A (en) * 1978-11-16 1981-01-27 Yoshida Kogyo K.K. Method for removing fastener elements from a slide fastener chain and apparatus therefor
US4324033A (en) * 1980-08-04 1982-04-13 Talon, Inc. Gapping slide fastener elements on members woven in tape edges
US4333232A (en) * 1978-05-26 1982-06-08 Talon, Inc. Apparatus for forming flypiece and slide fastener chain assembly
US4404722A (en) * 1980-05-01 1983-09-20 Yoshida Kogyo, K.K. Apparatus for forming a space section in a pair of continuous slide fastener stringers
US4443924A (en) * 1981-06-30 1984-04-24 Yoshida Kogyo K. K. Method of and apparatus for detecting ends of successive fly strips connected by a slide fastener chain
US4490899A (en) * 1982-06-04 1985-01-01 Hans Horlacher Method of and apparatus for removing coupling members from a slide fastener
US4510662A (en) * 1981-12-29 1985-04-16 Yoshida Kogyo K. K. Apparatus and a method for forming space sections in a slide fastener chain having coupling elements in the form of continuous coil
US4589182A (en) * 1983-11-25 1986-05-20 Yoshida Kogyo K. K. Method and apparatus for forming a space section in a pair of continuous concealed-slide-fastener stringers
US4638542A (en) * 1983-06-28 1987-01-27 Yoshida Kogyo K. K. Method and apparatus for forming element-free spaces in slide fastener chains
CN103223436A (zh) * 2013-04-26 2013-07-31 泉州市鲤城区展鸿自动化设备有限公司 一种帽盖自动上弹片组装机的弹片冲模装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431334A (en) * 1977-08-10 1979-03-08 Yoshida Kogyo Kk Space fabricating method and apparatus for slide fastener chain
DE19941354A1 (de) * 1999-08-31 2001-03-29 Erhard Wegener Wandelement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225430A (en) * 1964-07-29 1965-12-28 Scovill Manufacturing Co Gap production in slide fastener chain

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470373A (en) * 1966-10-18 1969-09-30 Litton Systems Inc Method for analysis and identification of biologic entities by phosphorescence

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225430A (en) * 1964-07-29 1965-12-28 Scovill Manufacturing Co Gap production in slide fastener chain

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958319A (en) * 1974-01-31 1976-05-25 Yoshida Kogyo Kabushiki Kaisha Apparatus for producing element-free gaps in a continuous fastener chain
US4232438A (en) * 1977-12-07 1980-11-11 Yoshida Kogyo K.K. Method and apparatus for providing space sections in a continuous slide fastener chain
US4333232A (en) * 1978-05-26 1982-06-08 Talon, Inc. Apparatus for forming flypiece and slide fastener chain assembly
US4236292A (en) * 1978-05-26 1980-12-02 Textron Inc. Method of positioning, gapping and applying stop to slide fastener
US4224730A (en) * 1978-07-12 1980-09-30 Yoshida Kogyo K.K. Method and apparatus for removing fastener elements from a slide fastener chain
US4246681A (en) * 1978-11-16 1981-01-27 Yoshida Kogyo K.K. Method for removing fastener elements from a slide fastener chain and apparatus therefor
US4404722A (en) * 1980-05-01 1983-09-20 Yoshida Kogyo, K.K. Apparatus for forming a space section in a pair of continuous slide fastener stringers
US4324033A (en) * 1980-08-04 1982-04-13 Talon, Inc. Gapping slide fastener elements on members woven in tape edges
US4443924A (en) * 1981-06-30 1984-04-24 Yoshida Kogyo K. K. Method of and apparatus for detecting ends of successive fly strips connected by a slide fastener chain
US4510662A (en) * 1981-12-29 1985-04-16 Yoshida Kogyo K. K. Apparatus and a method for forming space sections in a slide fastener chain having coupling elements in the form of continuous coil
US4490899A (en) * 1982-06-04 1985-01-01 Hans Horlacher Method of and apparatus for removing coupling members from a slide fastener
US4638542A (en) * 1983-06-28 1987-01-27 Yoshida Kogyo K. K. Method and apparatus for forming element-free spaces in slide fastener chains
US4589182A (en) * 1983-11-25 1986-05-20 Yoshida Kogyo K. K. Method and apparatus for forming a space section in a pair of continuous concealed-slide-fastener stringers
CN103223436A (zh) * 2013-04-26 2013-07-31 泉州市鲤城区展鸿自动化设备有限公司 一种帽盖自动上弹片组装机的弹片冲模装置
CN103223436B (zh) * 2013-04-26 2014-11-26 泉州市鲤城区展鸿自动化设备有限公司 一种帽盖自动上弹片组装机的弹片冲模装置

Also Published As

Publication number Publication date
NL165917C (nl) 1981-06-15
HK32177A (en) 1977-06-30
CA998519A (en) 1976-10-19
DK133266B (da) 1976-04-20
NL165917B (nl) 1981-01-15
BE803208A (fr) 1973-12-03
NL7310762A (es) 1974-02-11
MY7900059A (en) 1979-12-31
DK133266C (da) 1976-09-20
FR2199445B1 (es) 1978-09-29
FR2199445A1 (es) 1974-04-12
JPS4936448A (es) 1974-04-04
SE399812B (sv) 1978-03-06
BR7306024D0 (pt) 1974-07-25
JPS517417B2 (es) 1976-03-08
AU5875773A (en) 1975-02-06
IT996596B (it) 1975-12-10
DE2339763A1 (de) 1974-02-21
DE2339763C3 (de) 1983-12-29
GB1421501A (en) 1976-01-21
DE2339763B2 (de) 1977-02-03

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