EP0252175A1 - Vorrichtung zur Herstellung eines Häkchenhaftverschlusselementes - Google Patents

Vorrichtung zur Herstellung eines Häkchenhaftverschlusselementes Download PDF

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Publication number
EP0252175A1
EP0252175A1 EP86109289A EP86109289A EP0252175A1 EP 0252175 A1 EP0252175 A1 EP 0252175A1 EP 86109289 A EP86109289 A EP 86109289A EP 86109289 A EP86109289 A EP 86109289A EP 0252175 A1 EP0252175 A1 EP 0252175A1
Authority
EP
European Patent Office
Prior art keywords
hooks
strand
hook
hook fastener
making
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.)
Ceased
Application number
EP86109289A
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English (en)
French (fr)
Inventor
George H. Erb
Susan E. Beard
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.)
Erblok Associates
Original Assignee
Erblok Associates
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US06/643,001 priority Critical patent/US4615084A/en
Application filed by Erblok Associates filed Critical Erblok Associates
Priority to EP86109289A priority patent/EP0252175A1/de
Publication of EP0252175A1 publication Critical patent/EP0252175A1/de
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0003—Fastener constructions
    • A44B18/0015—Male or hook elements

Definitions

  • This invention is in the field of hook and loop fasteners, and more specifically the invention relates to the hook-fastener medium for providing hook-like gripping engagement with an opposed area containing multiple accessible loops or fibers forming multiple accessible apertures.
  • the hook-fastener medium contains multiple small hooks protruding from one face. This hook-fastener medium is brought into contact with a second fastener area containing multiple loops or multiple fibers form­ing loop-like apertures, herein called the "loop medium”. The hooks become engaged in hook-like fashion with the loops or loop-like apertures of the loop medium for attaching the hook-­fastener medium to the loop medium.
  • the original hook-fastener medium is fabricated by a needle loom, and it is currently made as a tape approximately one to four inches wide having a selvage along each margin of the tape, the tape has a woven substrate with an oriented monofilament woven by the loom into the substrate while the substrate itself is being woven.
  • This monofilament is woven with periodic protruding loops which are thereafter heat set and subsequently picked up in the loom or in a secondary machine by small needles.
  • small cutters Associated with these small needles are small cutters which serve to cut each loop at a cutting position which is oriented between 3 o'clock and 4 o'clock. Each cut loop thus forms a protruding hook, but there remains a stub of each cut loop standing closely adjacent to the tip of the hook.
  • a second shortcoming of the hook-fastener medium results from the fact that any given needle loom can pro­duce only one size of cut hooks.
  • the cut hooks are always formed of monofilaments of the same characteristics and same denier, and the tape is always of the same width.
  • the loom can slowly produce only one product.
  • a third shortcoming of this woven hook-fastener medium results from the fact that the woven-in monofilaments which form the cut hooks must be bonded into the woven substrate for preventing their extraction from the substrate whenever the hook medium is forcefully separated from a loop medium by pulling them apart.
  • the lower surface of the woven substrate is coated with a tacking bonding agent. Then, this bonding agent is cured for permanently anchoring the cut hooks into the woven substrate.
  • This bonding agent causes the lower surface of the woven substrate to have a glazed appearance.
  • the woven tape as a whole has an unattractive stiffness and has an unattractive "feel" as compared with ordinary woven fabric tapes.
  • the fourth and most important shortcoming of the woven hook-fastener medium is its relatively great expense, caused by the slow speed at which the tape can be woven in a needle loom.
  • Such needle looms are very complex, with many intri­cate small parts.
  • Increasing the width of the woven tape slows the lineal production speed, because increasing the width of the loom inherently slows down its lineal production speed, thus increasing the cost per unit length.
  • the relatively high cost of the woven hook-fastener medium has restricted and limited its commercial applications, for example, to closures for expensive clothing and sporting shoes, closures for watch bands, and the like.
  • Some molding machines of said inventor were subsequently modified to produce a double-hook having two hook-­shaped heads on each single shank. These hook-shaped heads are located on opposite sides of the shanks, i.e. they are angularly spaced 180° about the longitudinal axis of the shank, similar to the double-hook on the shank of an anchor from an old sailing vessel.
  • Such a molded double-hook-fastener medium has a strong gripping effect on the loop medium. It is difficult to separate them. If sufficient pulling, peeling force is applied to separate the molded double-hook-fastener from the loop medium, many of the loops become broken or torn apart.
  • the molded double-hook-­fastener medium is best suited to permanent industrial-type attachments.
  • molded hook-fastener media results from the fact that the hooks must be molded of a relative­ly stiff plastic material in order for them to have sufficient strength to provide the desired hook-like gripping engagement with the loop medium. Since the hooks are molded integral with the substrate tape, this tape itself has a relatively stiff rigidity, which makes the molded hook-fastener media unsuitable or unattrac­tive for use in visible locations or as closures on clothing. Thus, the molded hook-fastener media, whether single-hook or double-hook, are limited to industrial-type uses in hidden loca­tions, for example, to secure floor pads in place in vehicles.
  • a variation of the molded single-hook or double-­hook fastener media is to form a mushroom-shaped head on the protruding shank of the hook.
  • Such mushroom heads can be molded onto each shank in the first instance.
  • the outer end of each shank can be "upset” by heat and pressure in order to forge the mushroom heads on the shanks.
  • Such a molded mushroom-hook-fastener medium has a strong gripping effect on the loop medium, and they are difficult to separate.
  • peeling force is applied to separate these fasteners, numbers of the mushroom heads become snapped off of their shanks or the shanks are snapped off at their roots. Therefore, mushroom fasteners are best suited to permanent industrial-type attachments.
  • the protruding hooks can be formed of a different material from the substrate and then are bonded onto the pre-coated substrate.
  • a very desirable and attractive material can be used to make the substrate.
  • the substrate may be of any reasonable width: for example, three inches wide, six inches wide, a foot wide, a yard wide.
  • the production apparatus of this invention enables the number of hooks per square inch to be adjusted while running, i.e., the hook concentration or density per unit length can be varied, as desired for various products and for various fastener applications.
  • the production apparatus can be adjusted for making hooks with crossed legs or with uncrossed legs or with divergent legs, because the shank protion of each hook includes two legs.
  • the production apparatus can also be changed by replacing the shaping belts for making taller or shorter hooks.
  • the shaping belts may include multiple sub-belts, each of which may produce hook fasteners of differing shapes, sizes or characteristics for simultaneously producing different hook-fastener media in parallel flow relationship on one machine.
  • the hook characteristics can advantageously be adjusted over a wide range for providing different types and shapes of hooks on different types of substrate material of any reasonable, desired width.
  • the substrate material may be woven or non-woven and may comprise more than one layer and may include metal or plastic or layers of both.
  • the substrate can be slit longitudinally after the hooks have been bonded onto the substrate, for producing several tapes simultaneously at a relatively fast overall lineal produc­tion speed, as compared with known woven or molding equipment as described above.
  • the present invention holds the promise, we believe, of fast and low-cast production. Consequently, the hook-fastener media of this invention with their various sizes and shapes and various widths and characteristics, hold the promise of becoming widely available, widely used, relatively low cost, commodity-type products which will find their way into myriads of new applications of benefit to human beings in the years to come.
  • many rows of hooks are formed, each row from a strand of plastic material, for example, preferably from a monofilament of longitudinally oriented polymeric material.
  • the strand is formed and then "set" into its multiple hook row configuration in a high-speed operation separate from the substrate. Then these rows of pre-formed multiple hooks are bonded onto the substrate.
  • the various strands can be of different predetermin­ed colors, if desired. Since the substrate may be a foot wide, or more, and since it can be slit longitudinally after the hooks have been bonded to it, the actual lineal production rate of hook-fastener tape one-inch wide embodying this invention can be twenty to fifty times faster, or more, than in a needle loom as used today. Also, the various slit tapes can have hook features of respective different colors.
  • a multiple-hook fastener medium for providing hook-like gripping engagement with an opposed loop medium containing multiple accessible apertures into which the multiple hooks can become engaged by bringing the hook-fastener medium into contact with the opposed loop medium
  • a substrate area a plurality of spaced parallel rows of multiple hooks mounted on the substrate area with said rows extending longitudinally along the substrate area, each row including a first plurality of indentical,spaced, aligned left hooks facing outwardly from the left lateral side of the row, and each row also including a second plurality of identical, spaced, aligned right hooks facing outwardly from the right lateral side of the row.
  • All of the left and right hooks of the first and second pluralities of hooks in each row are formed from a respective strand of bendable and settable polymeric plastic material, with the respective strand extending back and forth in zig-zag manner between the respective successive left and right hooks of each row, and with the zig-zag extending portions of each strand being bonded to the substrate area.
  • an advantage relatively low-cost, high production rate apparatus for making hook fastener media of improved and variable characteristics and sizes.
  • Many strands of bendable, settable polymeric materials are fed in spaced parallel relationship into a first shaping zone between the interdigitating (meshing) teeth of a pair of opposed forming belts for bending and setting each of the strands into an intermediate zig-zag configuration by heat-softening the strands during bending and then cooling them to "set" the shape.
  • the concentration or density of the hooks are adjusted during production by adjusting the pitch of the respective zigs and zags.
  • each hook is a tightly formed U-bend in the strand, there is bulging of the polymeric material in the bight of the bend which acts somewhat like a rounded, slight barb on a fish hook for strength­ening the hook-like gripping engagement with the loop medium.
  • the configuration of the two legs of each hook is adjusted for obtaining a variety of hook characteristics, with crossed legs, uncrossed legs or divergent legs.
  • the relative height of the protruding hooks in the "Z" dimension is changed by using a different pair of interdigitating forming belts in the second set of zones.
  • the overall size of the zigs and zags is changed by using a different pair of interdigitating belts in the first set of zones.
  • FIG. 1 shows a row 18 of identical hooks 20, formed from a strand 22, with left-facing and right-facing hooks in the lateral regions L and R, respectively, of the row 18.
  • Each hook 20 includes a curved arch-shaped head portion H, with a shank portion S extending between the head portion and a mounting portion M which extends between the respective left-facing and right-facing hooks.
  • the shank portion of each hook include two legs 23 and 24 formed from a pair of respective segments of the strand 22.
  • the strand 22 is a monofilament of polymeric plastic material which is stiffly flexible at room temperature and which becomes limply bendable at a suitably elevated temperature.
  • this polymeric plastic material in the monofilament strand 22 may advantageously by Nylon polyamide.
  • the legs 23 and 24 converge upwardly and meet at a point 25 approximately one-half of the way up the shank S.
  • the strand 22 is seen to run from a bend 27 toward the right, defining a first mounting portion M. Then the strand bends up abruptly at a foot bend 26 commencing the leg portion 23. Continuing up this leg portion 23, the strand is seen to converge toward the other leg 24, meeting with it at point 25. The strand then continues up the shank S from the meeting point 25 closely adjacent and parallel to the other leg and continues into the head portion H, arching up and over, continuing to the tip of the hook at 28.
  • the strand bends back upon itself in a sharp closely doubled-back U-bend, and the strand then again arches up and over parallel to itself through the head H conti­ nuing down through the shank S again to the point 25.
  • the strand is seen in leg 24 to diverge from leg 23 until the strand reaches the other foot bend 27. From this foot bend 27 the strand is seen to run toward the left, defining a second mounting portion M. The strand then bends up abruptly at another foot bend 26 leading to the leg 23 of a left-­facing hook 20, and continuing so forth back and forth along the row 18.
  • the strand is seen to zig-zag back and forth as it extends from a foot bend 27 of one outwardly facing hook to the foot bend 26 of the next sequential hook, which faces laterally outwardly in the opposite direction from the previous hook.
  • the strand continues to zig-zag back and forth forming the row 18 hooks 20.
  • the mounting portions M of the respective rows 18 of hooks 20 are bonded to a backing material 30, which may be called a substrate, for holding the rows 18 of hooks 20 which protrude to a high Z above the upper surface of this substrate 30.
  • this substrate 30 may comprise any suitable layer or layers of woven or non-woven material.
  • the substrate 30 is shown as a woven fabric material 33.
  • the mounting portions M can be bonded to the backing 30 by any suitable settable adhesive.
  • the bonding is achieved by ultrasonic welding.
  • a strong, neat ultrasonic weld can be achieved between two Nylon polymeric materials.
  • the threads 32 which are woven into the fabric 33 include a relatively large percentage of suitable ultrasonic bondable Nylon polymeric mater­ial.
  • it may be pre-coated with a suitable ultrasonic bondable coating.
  • FIG. 3 the upwardly converging legs 23 and 24 are most clearly seen meeting at the point 25.
  • This view is a section taken along the center line 34 (FIG. 1) of the row 18 looking toward the left.
  • Each hook 20 in FIG. 3 is seen to have an inverted Y-shape.
  • FIG. 4 A comparison of FIG. 4 with FIG. 2 will begin to given an appreciation of the large variety and variations of hook configurations which can be readily and conveniently fabricated in the hook media in accord with this invention.
  • the hooks 20A in each row 18 have a different shape from the hooks 20 in FIG. 2, and the substrate 30A is different from the substrate 30.
  • this substrate 30A includes a fabric layer 33 plus a lower layer 36 of pressure-­sensitive adhesive with a peelable sheet 38 covering and protect­ing the adhesive 36.
  • the protective sheet 38 is peeled off from the pressure-sensitive adhesive 36 for exposing this adhesive, so that the fabric substrate 30A can be adhered to any area desired to be fastenable by the rows 18 of hooks 20A.
  • the rows 18 are spaced laterally farther apart than are the rows 18 in FIG. 2.
  • the smaller head hooks of FIG. 4 more readily enter into the apertures of the loop medium, and the wider spacing of the rows facilitates the entry of each hook into the apertures of the loop medium. Con­sequently, it is relatively easy to achieve a hooking engagement with hooks of the small head configuration of FIG. 4. Only very light and quick contact pressure against the loop medium is sufficient to achieve hooking engagement.
  • first shaping zone 40 and a first setting zone 42 both located within the same thermally insulated housing 44.
  • a thermal­ly insulated vertical partition 46 within this housing separates the shaping zone 40 from the setting zone 42.
  • a pair of endless flexible, meshing, shaping belts 47 and 48 revolve in synchronism in opposite directions, as shown by the arrows 49.
  • the upper shaping belt 47 is revolving counterclockwise and the lower shaping belt 48 clockwise, passing through respective narrow horizontally elongated ports 51 in the partition 46.
  • the upper belt 47 revolves around input and output rollers 50 and 54, respectively, while the lower belt 48 revolves around input and output rollers 52 and 56, respectively.
  • each sub-belt is three inches wide, and four of them are assembled together in parallel edge-to-­edge relationship on their respective rollers for providing a shaping belt 47 or 48 having an overall width of approximately twelve inches.
  • rollers 50, 52, 54 and 56 each has a plurality of narrow circumferentially extending pulley-type peripheral flanges, as indicated partially at 58, and these narrow guiding flanges 58 are spaced apart three inches for straddling the sub-belts.
  • the widths of these two shaping belts 47 and 48 in any particular installation are always the same, because they work in opposition to each other.
  • the belts 47 and 48 are preferably made of stainless steel.
  • the front surfaces (outer surfaces) of the respective belts 47 and 48 include multiplicities of parallel, axially extending and circumferentially spaced teeth 61 and 62, respectively, as shown greatly enlarged in FIG. 6 for shaping and setting the strand 22 into the intermediate corrugated configura­tion 60.
  • This initial corrugated configuration 60 includes sharp peaks 63 and sharp valleys (inverted peaks) 64 with sloping shoulders 65 interconnecting these peaks and valleys.
  • the strand 22 is bent back and forth zig-zag fashion 60 in a vertical plane on opposite sides of a centerline 59 (FIG. 5A) with equal size sharp U-bend peaks 63, 64 facing in opposite directions from said centerline.
  • a relatively large number of the strands 22 are simultaneously fed in closely spaced parallel relationship through an entrance port 67.
  • This entrance port 67 is as wide as the belts 47, 48 but is narrow in its vertical dimension.
  • These multiple entering strands 22 are travelling toward the shaping zone 40 (FIG. 5) as shown by the arrow 66.
  • a first chamber 68 in the housing 44, in which the zone 40 is located is heated by means of a gas or other heater 70 to a temperature slightly above the softening temperature of the monofilament polymeric material of the entering strands 66, 22.
  • this heater 70 is adjusted to heat the chamber 68 to a suitable tempera­ture level.
  • a sequence of radiant heaters 72 are aimed at the front surfaces of the two revolving belts as they travel around the respective input rollers 50 and 52 just prior to their reaching the nip region 74 between these two rollers 50 and 52.
  • These radiant heaters 72 may locally elevate the temperature of the teeth 61, 62 (FIG. 6) slightly above the average temperature in the chamber 68, if desired for enhancing the plastic softening action near the relatively sharp peaks and valleys 63, 64.
  • these teeth 61, 62 mesh in interdigitated relation with the multiple strands becoming corrugated between them as seen in FIG. 6.
  • the diameter of the rollers 50 and 52 is sufficiently large relative to the thickness of the stainless steel belts 47, 48 and relative to the pitch of their teeth 61, 62, that these belts will flex around these rollers at stresses well below their yield point.
  • the teeth become meshed gradually without interference between them and with the entering strands 66, 22 captured between them as the belts move into the nip region 74, thereby corrugating the strands.
  • a plurality of smaller diameter rollers 76 extending transversely and engaging the rear (inside) surfaces of the belts 47 and 48 support and guide these meshed belts as they travel downstream from the nip region 74.
  • the intermeshing of the heated teeth 61, 62 with the many parallel strands 66, 22 between them shapes these strands into the corrugated con­figuration 60 (FIG. 6).
  • the meshed belts travel downstream through the narrow port 51 in partition 46 and enter a cooling chamber 78 in which the setting zone 42 is located for cooling them to a stable, lower temperature.
  • the strands become set into their intermediate corrugated shape 60.
  • the belts are cooled down to a suitable temperature by means of coolers 80 containing cooling fans blowing onto the rear surfaces of the meshed belts.
  • the output rollers 54 and 56 are hollow and are cooled by circulating cold water through them.
  • the output rollers 54 and 56 are ganged together for rotation at the same peripheral speed in opposite directions by a mechanical interconnection 71, for example, by a gear train or by sprockets and a timing chain. These two rollers 54, 56 are driven through a transmission 73 by a controllable speed drive motor 75-1.
  • the speed of the drive means 75-1 is under control of a control station 77 which is electrically connected to the drive means 75-1 through an electrical cable 79-1.
  • each corrugated strand 60 exits from between the first pair of belts 47, 48, it is captured in a guide passageway 82 (please see FIG. 5A).
  • This guide passageway 82 has a tall narrow rectangular configuration at its entry 84, and it gradually twists 90° in a helical path as seen enlarged in FIG. 5A into a wide narrow horizontal rectangular configuration at its exit 86.
  • the purpose of each guide passageway 82 is to change the orientation of the plane of the corrugated strand 60 passing through it from vertical to horizontal.
  • the guide passageways 82 extend in parallel relation­ship from the thermally insulated housing 44 into a second similar housing 44-2 containing a second pair of revolving heated and cooled endless flexible shaping belts 47-2 and 48-2 revolving in synchronism in opposite directions through a second shaping zone 40-2 and a second setting zone 42-2.
  • the second pair of shaping and setting belts 47-2 and 48-2 (FIG. 5) are moved at a slower lineal speed than the first pair 47, 48.
  • the controllable-speed drive motor 75-2 for the second pair of belts is connected through an electrical cable 79-2 to the control station 77.
  • the operator uses speed controls in the station 77 for setting the lineal speed of the second pair of belts 47-2, 48-2 relative to the lineal speed of the first pair of belts 47, 48 for producing the partially closed corrugated configuration 60A (FIG. 7) of the strand 22 which enters into the nip region 74 (FIG. 5) between the second pair of belts.
  • a pair of elongaged electrical heater strips 88 may be extended along the two narrow edges of this helical guide passageway 82 for softening the strand 22 at the tips 28 for producing these sharp bends.
  • the second pair of belts 47-2, 48-2 convert each horizontally oriented, partially closed corrugated configuration 60A into a row 18 of hooks 20 or 20A, as shown in FIGS. 1, 2 and 4. These rows 18 of hooks (only one is in FIG. 5) issue at the right from the second housing 44-2 through an exit open­ing 90.
  • the front (outer) face of the lower belt 48-2 includes a plurality of laterally spaced, longitudinally extend­ing parallel grooves 92 with a longitudinally extending double hump 93, 94 between successive grooves.
  • the front face of the upper belt 47-2 includes a plurality of laterally spaced, longitudinally extending parallel ridges 95 with a longitudinally extending double groove 96, 97 between successive ridges.
  • the rows 18 of hooks are carried out through the exit 90 (FIG. 5) by a plurality of substantially parallel channel-shaped guides or chutes 98 leading the rows 18 of hooks into the bonding zone 100 (FIG. 5C) where the mounting portions M of these rows are bonded by welding onto any compatible sub­strate 30 or 30A or 30B as may be desired.
  • These guides 98 are described as being substantially parallel, because they can be laterally adjusted in the region 102 for converging or diverging the rows 18 for producing hook media 104 having, respectively, increased or decreased densities of hooks, i.e., more or less hooks per square inch.
  • the rows 18 become more closely spaced in the lateral "Y" direction (FIGS. 2 and 4) and vice versa.
  • the substrate 30 or 30A or 30B is supplied from a roll 106 and passes over a guide roller 108 and then passes above an anvil roller 110 having an extremely hard durable surface, for example, a steel roller having a deep case-hardened nitrided surface.
  • anvil roller 110 having an extremely hard durable surface, for example, a steel roller having a deep case-hardened nitrided surface.
  • anvil roller 110 having an extremely hard durable surface, for example, a steel roller having a deep case-hardened nitrided surface.
  • anvil roller 110 In opposed relationship to this anvil roller 110 are a plurality of ultrasonic welding probes 112 (only one is seen), each having a tapered horn shape having many tips and being ultrasonically vibrated by a driver 114. There is one of these welding horn tips 112 extending down into the region between the left-facing and right-facing hooks of each row 18 engaging the mounting portions M and welding them onto the substrate 30 or 30A or 30B.
  • the ultrasonic welding nut 114 may be placed below the substrate 30, 30A or 30B.
  • a welding unit may include a vibrationally driven bar extending transversely across below the substrate. This ultrasonically vibrating bar extends transversely with respect to the direction of motion of the substrate and the rows of hooks 18.
  • a plurality of harden­ed anvil disc wheels are located above the rows of hooks 18 opposite the ultrasonic bar. The extremely hard, durable rims of these disc wheels serve as anvils, and they roll over the mounting portions M (FIGS. 1, 2, 4, 10) of the respective rows of hooks for ultrasonically welding these mounting portions onto the sub­strate.
  • the ultrasonic bar may have a smooth surface, or it may have a pattern of ridges or small bumps for concentrating the welding action at various localized regions with respect to each mounting portion M.
  • an additional strip of bonding material may be applied downstream of the bonding station 100 (FIG. 5C) into the region between the row of left-facing hooks L and the row of right-facing hooks R.
  • this additional strip is fed parallel to the centerline 34 over respective mounting portions M (FIG. 1).
  • This strip is bonded to the backing for aiding in securing the mounting portions M to the backing (substrate).
  • the hardened surface of the anvil roller 110 may have any desired pattern of ridges and depressions for concentrating the ultrasonic welding action into a particular pattern for increasing the flexibility of the resultant welded hook medium 104.
  • the present invention has the further advantage as shown in FIGS. 11A and 11B that the tip 28 of each hook is a tightly formed U-bend in the strand 22.
  • the tip 28 of each hook is a tightly formed U-bend in the strand 22.
  • a bulging 118 of the polymeric material near the bight of the U-bend which acts somewhat like double barbs on a fish hook for strengthening the tiny hook like gripping engagement with a loop or fiber 120 of the loop medium.
  • the second pair of belts 47-2 and 48-2 are changed to a pair having different front surface configurations, as will be understood by comparing FIGS. 2, 4 and 5B.
  • both pairs of belts 47, 48 and 47-2, 48-2 are changed.
  • the present inven­tion is very flexible in application.
  • the sub-­belts comprising the respective pairs of belts 47, 48 and 47-2, 48-2 can be different on two sides of the apparatus and system shown in FIG. 5 for simultaneously producing two different kinds of hook media 104 (FIG. 5C).
  • a slitting station 122 is included for slitting the hook medium 104 longitudinally into multiple strips, as may be desired.
  • the apparatus for producing the hook-fastening medium has been described as employing relatively wide belts 47, 48 and 47-2, 48-2 including multiple sub-belts, the invention can also be embodied to advantage in an apparatus employing relatively narrow single belts 47, 48, 47-2 and 48-2, for example such single belts for producing hook-fastening media approximately one inch wide.

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  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
EP86109289A 1984-08-21 1986-07-08 Vorrichtung zur Herstellung eines Häkchenhaftverschlusselementes Ceased EP0252175A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US06/643,001 US4615084A (en) 1984-08-21 1984-08-21 Multiple hook fastener media and method and system for making
EP86109289A EP0252175A1 (de) 1986-07-08 1986-07-08 Vorrichtung zur Herstellung eines Häkchenhaftverschlusselementes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86109289A EP0252175A1 (de) 1986-07-08 1986-07-08 Vorrichtung zur Herstellung eines Häkchenhaftverschlusselementes

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EP0252175A1 true EP0252175A1 (de) 1988-01-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2756832A4 (de) * 2011-09-16 2015-05-20 Unicharm Corp Befestigungselement und befestigungsteil

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336640A (en) * 1965-04-19 1967-08-22 Talon Inc Slide fastener
US3594863A (en) * 1969-07-10 1971-07-27 American Velcro Inc Apparatus for molding plastic shapes in molding recesses formed in a moving endless belt
US3695976A (en) * 1967-06-22 1972-10-03 Velcro Sa Soulie Apparatus for manufacturing of separable fastener elements
FR2255860A1 (de) * 1973-12-28 1975-07-25 Yoshida Kogyo Kk
DE3012432A1 (de) * 1979-04-05 1980-10-16 Yoshida Kogyo Kk Samtartiges band fuer einen klettverschluss
EP0052338A1 (de) * 1980-11-14 1982-05-26 Yoshida Kogyo K.K. Mit Haken versehenes Stoffbefestigungsband und Verfahren zu dessen Herstellung
US4615084A (en) * 1984-08-21 1986-10-07 Erblok Associates Multiple hook fastener media and method and system for making

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336640A (en) * 1965-04-19 1967-08-22 Talon Inc Slide fastener
US3695976A (en) * 1967-06-22 1972-10-03 Velcro Sa Soulie Apparatus for manufacturing of separable fastener elements
US3594863A (en) * 1969-07-10 1971-07-27 American Velcro Inc Apparatus for molding plastic shapes in molding recesses formed in a moving endless belt
FR2255860A1 (de) * 1973-12-28 1975-07-25 Yoshida Kogyo Kk
DE3012432A1 (de) * 1979-04-05 1980-10-16 Yoshida Kogyo Kk Samtartiges band fuer einen klettverschluss
EP0052338A1 (de) * 1980-11-14 1982-05-26 Yoshida Kogyo K.K. Mit Haken versehenes Stoffbefestigungsband und Verfahren zu dessen Herstellung
US4615084A (en) * 1984-08-21 1986-10-07 Erblok Associates Multiple hook fastener media and method and system for making

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2756832A4 (de) * 2011-09-16 2015-05-20 Unicharm Corp Befestigungselement und befestigungsteil

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