US3763546A - Method and apparatus for producing gaps in slide fastener chains - Google Patents

Method and apparatus for producing gaps in slide fastener chains Download PDF

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Publication number
US3763546A
US3763546A US00221187A US3763546DA US3763546A US 3763546 A US3763546 A US 3763546A US 00221187 A US00221187 A US 00221187A US 3763546D A US3763546D A US 3763546DA US 3763546 A US3763546 A US 3763546A
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United States
Prior art keywords
coils
tapes
die
punch
pressure pad
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Expired - Lifetime
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US00221187A
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English (en)
Inventor
M Peliman
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CARBIDE FORM GRINDING Inc
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CARBIDE FORM GRINDING Inc
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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

  • fastener chain having a pair of tapes carrying along adjacent inner longitudinal edges thereof continues 2 Fl 2] led Jan 1972 coils attached to the tapes and having mterengaged coupling portions, in which the coils are attached to [2
  • Takamats 29/2075 D cut coils are then removed from the tapes by pulling 29/408 the cut coils out of the threads by means of which they are connected to the tapes.
  • the interengaging coupling elements on the two slide fasteners stringers are perferably' made of continuous substantially helical coils of filamentary material sewn or woven to one longitudinal edge of the tape and-a continuous slide fastener chain is produced by pulling up two stringers, that is by interengaging the coupling portions of the coils fastened to two tapes.
  • the coils are preferably produced from plastic filaments such as nylon or the like.
  • the convolution of the coils are severed by a thin blade-like punchhaving a length corresponding to the length of the gap to be produced, but it is of utmost importance that during severing of the convolu tions of the coils the tape is not damaged.
  • slide fasteners to be produced are of the type which is generally called in the trade covered slide fastener," that is, in slide fasteners in which the coiled filaments are connected to the tapes in such a manner that when the coupling portions of the coils on the two tapes are interengaged, the coils are completely covered at one side thereof by the tapes, that is, when the adjacent edges of the two tapes abut against each other.
  • This pulling apart of the tapes before severing the coils has therefore to be made in a very exact and controlled manner inorder to assure that the inner edges of the two tapes are pulled apart for a distance so that the cutting punch may move be tween these edges withoutdamaging the tape and care has to be taken that the tape is also not damaged by the pulling apart operation and that the interengaged portions of the coils do not become disengaged before the coils are out.
  • Another problem residing in providing gaps incontinuous slide fastener chains is to properly remove the severed convolutions of the coils in their entirety from the tape, that is without leaving any remnants of the severed coils still attached by the threads to the tapes.
  • the method according to the present invention of producing a gap in a slide fastener chain having two tapes carrying along adjacent inner longitudinal edges continues coils attached to the tapes and having interengaged coupling portions and in which the coils are attached to the tapes so that the coils are covered at one side thereof completely by the tapes, comprises the steps of clamping the tapes in the region of outer longitudinal edges thereof at the desired location of a gap, deflecting the tapes between the thus clamped outer longitudinal edges and the interengaged coupling portions to thereby pull the inner longitudinal edges of the tapes apart in a controlled manner and to expose the interengaged coupling portions, cutting the coils between the pulled apart inner longitudinal edges of the tapes for a distance corresponding to the desired length of the gap, and removing the cut coils from the tapes.
  • the step of removing the cut coils from the tapes comprises the step of pulling the cut coils out of the threads which attach the coils to the tapes.
  • each of the convolutions of the coils is cut only at one side thereof and this is preferably done by engaging the coils at said one said by a pair of transversely spaced cutting edges of a die and at the other side thereof by an endface of a punch adapted to move with clearance between the cutting edges, whereafter the die and punch are moved relative to each other so that the punch passes between and beyond the cutting edges.
  • the step of pulling the cut coil convolutions out of the thread means by means of which they are attached to the tape comprises the step of pinching the cut coils during movement of the punch beyond the cutting edges, between side faces of the punch and opposite faces of the die spaced from the side faces a distance smaller than that of the spacing between the cutting edges.
  • the apparatus for carrying out the above method preferably comprises a die having a locating face on which a portion of the chain which is to be formed with the gap is adapted to rest, and pressure pad means arranged opposite and movable toward and away from the locating face of the die.
  • the die and the pressure pad means have first cooperating means to clamp the tapes of the chain resting on the locating face in the region of outer longitudinal edges thereof and second cooperating means for deflecting a portion of each tape out of the locating face so as to pull the adjacent inner longitudinal edges of the tapes apart in a controlled manner and to thus expose the interengaged portions of the coils.
  • the apparatus includes further a punch movable between the pulled apart inner longitudinal edges of the tapes and cooperating with cutting edges on the die for cutting the coils without cutting the tapes for a distance corresponding to the desired lengths of the gap and for pulling the thus severed coil convolutions during further movement of the punch out of the thread means by means of which the coils have been attached to the respective tapes.
  • the above-mentioned first cooperating means for clamping the tapes in the region of the outer edges thereof may comprise a pair of outer side faces of the die extending transverse to the locating face and a pair of cooperating faces on the pressure pad extending respectively substantially parallel to the side faces spaced therefrom a distance to clamp outer portions of the tape between the side faces and the cooperating faces during movement of the pad towards the die, or the first cooperating means may comprise an auxiliary pressure pad carried by the main pressure pad and having faces substantially parallel and facing outer portions of the locating face, and biasing means for yieldably biasing the auxiliary pressure pad toward the locating face so that outer longitudinally extending portions of the tape are clamped between the faces of the auxilairy pressure pad and the portions of the locating face during movement of the pressure pad toward the die.
  • the second cooperating means for deflecting the portion of each tape out of the locating face may comprise a pair of spaced longitudinally extending grooves in the die and corresponding longitudinally spaced ridges on the pressure pad adapted to penetrate with clearance into the grooves, respectively, during movement of the pressure pad towards the die.
  • the die is preferably provided with a central longitudinal slot having a length substantially equal to that of the gap to be produced and being defined by a pair of substantially parallel inner faces extending substantially normal to the locating face and being spaced from each other so that the punch may move with clearance between the aforementioned inner faces, and a pair of cutting edges to opposite sides of the slot facing the pressure pad and being spaced from each other a distance greater than that of said inner faces.
  • the punch preferably has at least over a major portion of its length a rounded bottom edge and a pair of side faces parallel to the inner faces defining the slot in the die, and the clearance between the side faces of the punch and the cutting edges of the die is substantially twice the clearance between the side faces of the punch and the inner faces of the die which define the slot so that the punch during its relative movement with respect to the die will cut the filament coils only at one side thereof while during further movement of the punch into the slot of the die the severed filament portions will be squeezed between the side faces of the punch and the faces which define the slot in the die so that during downward movement of the punch into the slot the severed coil convolution will be pulled out of the attaching threads.
  • FIG. 1 is a partial front view of the apparatus according to the present invention and showing the apparatus in a starting position.
  • FIGS. 2 and 3 are partial front views of the apparatus shown in FIG. 1 and respectively showing the position of the pressure pad as it approaches the die to clamp the two tapes in the region of the outer longitudinal edges thereof and to subsequently deflect the tapes so as to pull the inner edges apart and to expose part of the coils;
  • FIG. 4 is an enlarged sectional view illustrating the relative positions of the die, the pressure pad and the punch at the start of the cutting operation of the coils;
  • FIG. 5 is a similar sectional view illustrating the punch in a further advanced position in which the punch starts pulling the severed convolutions of the coils out of the threads by means of which they are attached to the tapes;
  • FIG. 6 shows the punch in a further advanced position in which part of the severed filaments are squeezed between side faces of the punch and corresponding side faces of the slot in the die so that the severed convolutions of the coils are completely pulled out from the thread during advance of the punch;
  • FIG. 7 is a partial top view of the die
  • FIG. 8 is a bottom view of the blade-like punch.
  • FIG. 9 is a partial front view of a modification of the apparatus shown in FIG. 1.
  • the apparatus comprises a die 1 composed of two-mirror-symmetrical parts la and lb which are connected to each other in a manner as will be described later on in further detail and a pressure pad means 2 arranged above the die 1 movable toward and away from the latter.
  • the pressure pad means 2 preferably comprises support means 3 which may be composed, as shown in the drawing, of an upper block 6 and a lower block composed of two mirror symmetrical parts 7a and 7b connected to each other by a plurality of transversely extending screws 8 and abutting with the top face thereof against the bottom face of the upper block 6 and connected to the latter in any convenient manner by screws or the like, not shown in the drawing.
  • the pressure pad means 2 further comprises the actual pressure pad 4 composed also of two mirror symmetrical halves 4a and 4b connected to and guided for movement relative to the support means in vertical direction by a plurality of preferably cylindrical rods 9, only two of which are shown in the drawing, which are provided at the lower ends thereof with male screw threads so as to be threadily connected in correspondingly threaded bores formed in the pressure pad parts 4a and 4b.
  • the rods 9 are guided in their upper portions in corresponding bores in the lower blocks 7a and 7b and have at their upper ends enlarged heads 10 located in corresponding bores 11 formed in the upper block 6 of the support'means.
  • the bores 11 are blind bores extending from the bottom face of the block 7 into the latter and compression springs 12, located in these bores, aubt with the upper ends against the closed upper ends of the bores and with the lower ends against the top faces of the heads 10.
  • the springs 12 thus constitute biasing means biasing the pressure pad portions 4a and 4b in a directionaway from the support means 3.
  • a blade-like punch 5 extends in the rest position of the apparatus as illustrated in FIG.
  • the die 1 is to be placed on a stationary part of the punch press, or the like where as the upper block, 6 is to be connected to the ram of the punch press, which is notillustrated in the drawing, so as to move the pressure pad means 2 and the punch 5 in vertical direction toward and away from the die 1.
  • Each of the die blocks la and 1b is formed at the upper end thereof with a pair of longitudinal extending ridges l4 and 15 which form between themselves a longitudinally extending groove 16 having a bottom face 16 which is located at an elevation slightly higher than that of a bottom face 17' of a cut-out formed in each die block outside the ridge 14.
  • the upper faces 14' and 15' of the ridges in both die blocks are located in a common plane and form together a locating face onto which the two tapes T and T of a continuous slide fastener chain, which has to be formed with a gap, is palced.
  • each of the die blocks is formed at the inner face thereof with a groove so that the two grooves form to conjointer an axially extending slot 18, of a length substantially equal to the length of the gap to be produced, and defined by side faces 18a and 18b spaced apart from each other a distance greater then the width of the punch 5.
  • the upper ends of the side faces 18a and 18b are outwardly inclined and terminate into cutting edges 19 extending longitudinally through the die. The cutting edges 19 are spaced from each other a distance greater than the spacing between the side faces 18a and 18b.
  • Each of the pressure pad portions 4a and db is provided with two longitudinally extending ridges 20 and 21 which are respectively vertically aligned with the groove 16 and the outer cut-outs formed in the die blocks 1a and lb.
  • the width of each ridge 20 is smaller than the width of the corresponding groove 16 by a dimension greater then twice the thickness of the respective tape, whereas the inner side face 211' of the ridge 21 in each pressure pad portion is transversely spaced from the corresponding outer side face 14a of the ridge 14 in the respective die block by a distance which is smaller than the thickness of the respective tape for a purpose, as will be described later on in detail.
  • the downward extension of the outer ridges 21 is gerater than the downward extension of the inner ridges 20.
  • the inner face 21' of the outer ridges 21 on the two pressure pad portions 4a and 4b are laterally spaced from the corresponding outer faces 14' of the outer ridges 14 in the two die blocks a distance smaller than the thickness of the tapes the outer portions of the tapes T and T will be clamped between the respective faces 21' and 14'.
  • the inner ridges 20 on the two pressure pad portions 4a and 4b will penetrate into the corresponding grooves 16 formed in the two die blocks 1a and lb so as to deflect a portion of each tape located between the outer clamped portions and the inner edges of the tapes in the manner as shown in FIG.
  • the lower preferably rounded endface 5 of the punch engages the upper branches of the coils C and C to press the upper branches against the lower branches in the manner as shown in FIG. 4 and to press thereby the lower branches of the coils against the cutting edges l9 on the two die blocks la and 1b.
  • the spacing between the two cutting edges 19 is greater than the spacing between the faces 18a and 18b and the spacing between the latter faces is made in such a manner that the punch 5 may penetrate with clearance into the slot defined by these two faces.
  • the distance a between the opposite faces 18a and 18b is preferably chosen in such a manner that when the punch penetrates into the slot 18 formed between the faces 18a and 18b, the clearance between each side face of the punch and the respective face 18a or 18b is smaller, preferably about one half of the diameter d of the coil filaments.
  • the spacing b of the two cutting edges 19, on the other hand, is greater than the dimension a and preferably the distance b between the cutting edges 19 is about equal to the width of w of the punch 5 plus twice the diameter d.
  • the above-mentioned relationship between the width of the punch, the diameter of the coil filaments, the spacing between the cutting edges 19 and the side faces 18a and 18b of the slot 18 through the die will assure that during downward movement of the punch into the slot only the lower branches of the coil filaments will be cut and the thus severed coil filaments will be pulled out in their entirety from the stitches which fasten the coils to the tape so that no remnants of the severed filaments will remain attached to the tapes.
  • the die 1 is, as mentioned before, made out of two parts which greatly facilitates grinding of the cutting edges 19 and the side faces 18a and 18b.
  • the two die parts la and lb are connected to each other by keys 23 and 24 as shown in FIG. 7. These keys extend transversely of the central slot 18 through the die and close the slot at opposite ends thereof. However, each of these keys is formed with a central vertically extending slot 23' and 24', respectively, which slots are aligned with the slot 18 but have each a width smaller than that of the slot 18.
  • the width of the slots 23 and 24' is substantially equal to the width w of the punch 5 and while the punch has, as described above, over a major portion of its length a rounded bottom face 5', the punch has a pair of end portions 5" and 5", as shown in FIG. 8, which respectively will fit with a minimum clearance into the slots 23' and 24' and which have a bottom face normal to the side faces of the punch.
  • These end portions of the punch 5 will cooperate with the slots 23 and 24' formed in the keys to properly cut end portions of the coils at the end of the gap formed in the continuous slide fastener chain so that such end portions will not protrude beyond the inner longitudinal edges of the tape.
  • FIG. 9 shows a modification of the apparatus as illustrated in FIG. 1.
  • Th die 1 of the apparatus shown in FIG. 9 is very similar to the die as shown in FIG. 1 and the die 1 is also formed of two parts or die blocks la and lb and the only difference between these die blocks shown in FIG. 9 and those described above in connection with FIG. 1 is that the ridges 14" are wider then the ridges 14 shown in FIG. 1 and extend all the way toward the outer side faces of the two die blocks.
  • the pressure pad 4' is likewise formed out of two parts, designated in FIG. 9 as 40 and 4d, which are guided on guide rods 9 for movement toward and away from the die 1.
  • the support means 3 to which the upper ends of the guide rods 9 are connected are not shown in FIG.
  • the two pressure pad parts 40 and 4d are formed with downwardly extending ridges 20 which cooperate with the grooves 16 formed in the two die blocks in the same manner as described above in connection with FIG. 1.
  • auxiliary pressure pads 26 which are movably guided in cutouts 28 formed in the pressure pad parts 4c and 4d.
  • Coil compression springs 29 are located in the upper portions of the cut-outs 28 and engage with opposite ends the auxiliary pressure pads 26 and plates 30 connected by screws or the like to the upper ends of the blocks 4c and 4d closing the upper ends of the cut-outs 28.
  • the springs may be centered by plugs 31 press-fitted in corresponding bores in the plates 30 and blind bores 32 at the upper ends of the auxiliary pressure pads 26.
  • the cut-outs 28 have each an upper wider portion and a lower smaller portion and form shoulders 28 at the junction of these two portions and laterally extending ears 27 on the auxiliary pressure pads 26 prevent movement of the latter under the influence of the springs 29 in downward direction beyond the position shown in FIG. 9.
  • the punch 5 is again guided between the inner side faces of the pressure pad parts 40 and 4d.
  • FIG. 9 The embodiment illustrated in FIG. 9 will operate as follows:
  • the bottom faces 26 of the auxiliary pressure pads 26 will engage the top faces of the tapes T and T in the region of the lateral outer edges of the latter and clamp the tapes in the region of the outer lateral edges thereof tightly against the top faces 14' of the ridges 14" of the two die blocks.
  • the ridges 20 of the pressure pad parts 4c and 4d will penetrate into the slots 16 formed in the two die blocks la and 1b to defleet the tapes between the inner and outer longitudinal edges thereof to thereby pull the inner edges apart in the manner as described above in connection with FIG. 1.
  • the punch blade 5 will penetrate between the pulled apart inner edges of the two tapes, sever the coils C and C and pull the same out of the stitches or threads which connect the coils to the two tapes, in the manner as described above.
  • FIG. 9 While the construction shown in FIG. 9 is slightly more complicated than that shown in FIG. 1, this construction will assure a more exact pulling apart of the inner longitudinal edges of the two tapes than can be obtained with the construction as shown in FIG. 1 in which the two tapes may be slightly dragged along by the side faces 21' on the ridges 21.
  • the construction shown in FIG. 9 which also prevent any damage of the tapes which may occur in the embodiment shown in FIG. I by squeezing the same tightly between the side faces 21' of the ridges 21 and the side faces 14a on the ridges 14. I
  • step of cutting said coils comprises the step of cutting said coils only at one side thereof.
  • step of cutting said coils only at one side thereof comprises the steps of engaging said coils at said one side thereof by a pair of transversely spaced cutting edges of a die and at the other side thereof by an endface of a punch adapted to move with clearance between said cutting edges and moving said die and said punch relative to each other so that the punch passes between and beyond said cutting edges
  • step of pulling the cut coils out of the thread means comprises the step of pinching the cut coils between side faces of the punch and opposite faces of said die spaced from each other a distance smaller than the spacing between said cutting edges during movement of said punch beyond said cutting edges.
  • a combination comprising a die having a locating face on which a portion of said chain to be formed with said gap is adapted to rest; pressure pad means arranged opposite and movable toward and away from said locating face of said die, said die and said pressure pad means having first cooperating means to clamp said tapes of a chain resting on said locating face in the region of outer longitudinal edges, and second cooperating means to deflect a portion of each tape out of said locating face so as to pull the adjacent inner longitudinal edges of said tapes apart'and to thus expose the intercoupled portions of said coils; and a punch movable between the pulled apart inner longitudinal edges of said tapes and cooperating with the die for cutting the coils without cutting said tapes for a distance corresponding to a desired length
  • said first cooperating means comprises a pair of outer side faces of said die extending transverse to said locating face and a pair of cooperating faces on said pressure pad means extending respectively substantially parallel to said side faces spaced therefrom a distance to clamp the outer portions of the tapes between said side faces and said cooperating faces during movement of said pressure pad means toward said die.
  • said first cooperating means comprise auxiliary pressure pad means carried by said first mentioned pressure pad means and having faces substantially parallel and facing outer portions of said locating face, and biasing means for yieldably biasing said auxiliary pressure pad means toward that locating face so that outer longitudinally extending portions of the tapes are clamped between said faces of said auxiliary pressure pad means and said portions of said locating face during movement of said pressure pad means towards said die.
  • said second cooperating means for deflecting a portion of each tape out of said locating face comprise a pair of spaced longitudinally extending grooves in said die and corresponding longitudinally extending spaced ridges on said pressure pad means adapted to penetrate with clearance into said grooves, respectively, during movement of said pressure pad means towards said die.
  • said punch has, at least over a major portion of its length, a rounded bottom edge and a pair of side faces parallel with said inner faces defining said slot in said die, and wherein the clearance between said side faces of said punch and said cutting edges of the die is substantially twice the clearance between said side faces of said punch and said inner faces of the die which define said slot.
  • said coils are formed from plastic filaments having a given diameter and wherein said inner faces defining said slot are spaced from each other a distance substantially equal to the diameter of said filaments so that, as said punch moves between said cutting edges of said die, said coils are cut only at the sides thereof engaging said cutting edges while during further movement of said punch into said slot the thus cut coils are squeezed between said side faces of said punch and said inner faces, dragged by said punch into said slot and pulled out of the thread means.
  • said bottom edge of said punch has a pair of short end portions having planar faces substantially normal to said side faces and wherein said slot in said die has a pair of corresponding end portions having side faces spaced from each other a distance substantially equal to the width of said punch, said spaced cutting edges of said die end short of said end portions of said slot and said die has, in the region of said slot end portions, upper face portions substantially parallel to said locating face, whereby the ends of the coils located at opposite ends of the gap to be produced are cut so that such ends will not protrude in the gap.
  • said die comprises two mirror symmetrical blocks connected to each other by a pair of key means respectively located in the region of the opposite ends of said slot, said slot end portions being arranged in said key means.
  • said pressure pad means comprises support means movable towards and away from said die, a pair of mirror symmetrical adjacent pressure pad portions carried by said support means, guide means connected to said support means and said pressure pad portions for guiding the latter for movement relative to said support means towards and away from said die, and biasing means cooperating with said pressure pad portions for yieldably biasing the latter towards said die, said punch being fixed at the end thereof opposite said bottom edgeto said support means and passes with a portion thereof between said pressure pad portions to be guided by the latter.
  • said support means comprises an upper block having a bottom face and being formed with a plurality of bores extending from said bottom face into said upper block, and a lower block fixed to said upper block and having a top face abutting against said bottom face, said lower block being formed with a plurality of bores respectively aligned with the bores in said upper block, said guide means comprising a plurality of rods slidingly guided in said bores in said lower block and being fixed at the lower ends thereof to said pressure pad portions and having at the upper end heads respectively located in said bores of said upper block, said biasing means comprising compression springs located in said bores of said upper block and engaging said heads of said rods.

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  • Slide Fasteners (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US00221187A 1972-01-27 1972-01-27 Method and apparatus for producing gaps in slide fastener chains Expired - Lifetime US3763546A (en)

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US22118772A 1972-01-27 1972-01-27

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CA (1) CA972935A (da)
DE (1) DE2248966A1 (da)
DK (1) DK135876B (da)
FR (1) FR2173908B1 (da)
GB (1) GB1389701A (da)
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Cited By (9)

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US4019240A (en) * 1975-05-28 1977-04-26 Textron, Inc. Process for gapping slide fastener chain
US4324033A (en) * 1980-08-04 1982-04-13 Talon, Inc. Gapping slide fastener elements on members woven in tape edges
US4324034A (en) * 1979-12-27 1982-04-13 Talon, Inc. Method and apparatus for gapping and reinforcing slide fastener stringers
US4332072A (en) * 1979-02-27 1982-06-01 Brevetti Motta S.A.S Method and device for spacing continuously manufactured zip fasteners in which the connection elements are constituted by a monofilament of meander or spiral form
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
EP0129757A2 (en) * 1983-06-28 1985-01-02 Yoshida Kogyo K.K. Formation of element-free spaces in slide fastener chains
US4641424A (en) * 1984-08-15 1987-02-10 Yoshida Kogyo K. K. Apparatus for finishing slide fastener chain with reinforcing strip
EP0981975A2 (en) * 1998-08-25 2000-03-01 Ykk Corporation Fastener-chain-finishing apparatus
WO2014068748A1 (ja) * 2012-11-01 2014-05-08 Ykk株式会社 長尺スライドファスナーチェーンのスペース部形成方法と装置

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DE3528774A1 (de) * 1985-08-10 1987-02-19 Opti Patent Forschung Fab Vorrichtung fuer die herstellung eines verschlussgliederfreien "gaps" in einem kontinuierlichen reissverschluss
US4663817A (en) * 1986-04-04 1987-05-12 Talon, Inc. Method and apparatus for gapping slide fastener chain

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US2987809A (en) * 1957-07-15 1961-06-13 Cue Fastener Inc Method of gapping stringer for slide fasteners
US3611545A (en) * 1968-02-24 1971-10-12 Yoshida Kogyo Kk Method for continuously producing a slide fastener chain

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US3225430A (en) * 1964-07-29 1965-12-28 Scovill Manufacturing Co Gap production in slide fastener chain
US3470373A (en) * 1966-10-18 1969-09-30 Litton Systems Inc Method for analysis and identification of biologic entities by phosphorescence

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US2987809A (en) * 1957-07-15 1961-06-13 Cue Fastener Inc Method of gapping stringer for slide fasteners
US3611545A (en) * 1968-02-24 1971-10-12 Yoshida Kogyo Kk Method for continuously producing a slide fastener chain
US3611538A (en) * 1968-02-24 1971-10-12 Yoshida Kogyo Kk Apparatus for continuously producing a slide fastener chain

Cited By (14)

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US4091532A (en) * 1975-05-28 1978-05-30 Textron Inc. Apparatus for gapping slide fastener chain
US4332072A (en) * 1979-02-27 1982-06-01 Brevetti Motta S.A.S Method and device for spacing continuously manufactured zip fasteners in which the connection elements are constituted by a monofilament of meander or spiral form
US4324034A (en) * 1979-12-27 1982-04-13 Talon, Inc. Method and apparatus for gapping and reinforcing slide fastener stringers
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
EP0129757A2 (en) * 1983-06-28 1985-01-02 Yoshida Kogyo K.K. Formation of element-free spaces in slide fastener chains
EP0129757A3 (en) * 1983-06-28 1985-09-11 Yoshida Kogyo K.K. Formation of element-free spaces in slide fastener chains
US4638542A (en) * 1983-06-28 1987-01-27 Yoshida Kogyo K. K. Method and apparatus for forming element-free spaces in slide fastener chains
US4641424A (en) * 1984-08-15 1987-02-10 Yoshida Kogyo K. K. Apparatus for finishing slide fastener chain with reinforcing strip
EP0981975A2 (en) * 1998-08-25 2000-03-01 Ykk Corporation Fastener-chain-finishing apparatus
EP0981975A3 (en) * 1998-08-25 2000-05-31 Ykk Corporation Fastener-chain-finishing apparatus
US6467159B2 (en) 1998-08-25 2002-10-22 Ykk Corporation Fastener-chain-finishing apparatus
WO2014068748A1 (ja) * 2012-11-01 2014-05-08 Ykk株式会社 長尺スライドファスナーチェーンのスペース部形成方法と装置

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SU520889A3 (ru) 1976-07-05
FR2173908A1 (da) 1973-10-12
DE2248966A1 (de) 1973-08-09
IT970071B (it) 1974-04-10
DK135876C (da) 1978-01-30
GB1389701A (en) 1975-04-09
DK135876B (da) 1977-07-11
CA972935A (en) 1975-08-19
FR2173908B1 (da) 1976-01-30

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