EP1729608B1 - Hook and loop connector piece - Google Patents

Hook and loop connector piece Download PDF

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Publication number
EP1729608B1
EP1729608B1 EP05715680A EP05715680A EP1729608B1 EP 1729608 B1 EP1729608 B1 EP 1729608B1 EP 05715680 A EP05715680 A EP 05715680A EP 05715680 A EP05715680 A EP 05715680A EP 1729608 B1 EP1729608 B1 EP 1729608B1
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EP
European Patent Office
Prior art keywords
tape
fastener component
adhesive fastener
component according
lateral edge
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.)
Active
Application number
EP05715680A
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German (de)
French (fr)
Other versions
EP1729608A1 (en
Inventor
Konstantinos Poulakis
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.)
Gottlieb Binder GmbH and Co KG
Original Assignee
Gottlieb Binder GmbH and Co KG
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Publication date
Application filed by Gottlieb Binder GmbH and Co KG filed Critical Gottlieb Binder GmbH and Co KG
Priority to PL05715680T priority Critical patent/PL1729608T3/en
Publication of EP1729608A1 publication Critical patent/EP1729608A1/en
Application granted granted Critical
Publication of EP1729608B1 publication Critical patent/EP1729608B1/en
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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
    • A44B18/0069—Details
    • A44B18/0076—Adaptations for being fixed to a moulded article during moulding
    • 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
    • A44B18/0069—Details
    • A44B18/0084—Double-sided
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
    • Y10T24/2792—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener] having mounting surface and filaments constructed from common piece of material
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24008—Structurally defined web or sheet [e.g., overall dimension, etc.] including fastener for attaching to external surface
    • Y10T428/24017—Hook or barb

Definitions

  • the invention relates to an adhesive closure part with a carrier tape with interlocking elements arranged thereon on one side and with at least one cover strip which forms at least one free side edge region which extends beyond the assignable longitudinal edge of the carrier strip, wherein the respective free side edge region of the respective cover strip in the direction on the carrier tape along a longitudinally extending fold line over itself is foldable such that the end edge of the respective free side edge portion of the cover strip facing the assignable longitudinal edge of the carrier tape, wherein on the side facing away from the Verhakungs instituten of the adhesive closure part is provided a connecting means for a molded foam.
  • Adhesive closure parts of this type in which there is a plurality of integrally formed Verhakungs instituten in the form of thickened stems having on the Verhakungs- or front side of the carrier tape, are commercially available.
  • a manufacturing method for producing the carrier tape such adhesive closure parts is in the DE 198 28 856 C1 described.
  • a thermoplastic material in particular polyolefin or polyamide, is preferably supplied in a plastic or liquid state to a gap between a pressure tool and a molding tool, wherein as a shaping element on the molding tool a sieve having continuous cavities is used and the interlocking elements are formed by at least partially hardening the thermoplastic in the cavities of the sieve.
  • a so-called micro-adhesion closure with 200 to 400 interlocking elements per cm 2 is formed.
  • the mushroom-like hooking elements formed in this case it is also possible to provide a carrier strip in the form of a textile material, in which the hooking elements are formed by a loop material integral with the textile carrier strip, for example.
  • a fleece or a mushroom structure can also be used.
  • fastener parts are used in many ways, for example in automotive technology, the floor laying technique, for clothing of any kind and for special applications in mechanical engineering.
  • the fastener parts have proven in these areas as a detachable and reliable connection and locking technology. If such fastener parts are used for air or vehicle seats, they serve, inter alia, to attach seat covers to foam body parts, consisting of a molded foam, the one adhesive fastener parts are foamed into the padding foam material in producing the respective seat and the adhesive closure member with the corresponding Interlocking elements fixed to the upholstery material, in particular is sewn.
  • the adhesive closure parts are inserted into so-called receiving pipes of a foam mold and by introducing foam material into the free cross sections of the foam mold, preferably of polyurethane (PU) foam, the adhesive closure parts are fastened to the foam body parts during the foaming process.
  • foam material preferably of polyurethane (PU) foam
  • the parts used are usually on the other walls in the foam and thus form later in the foam body part groove-like depressions into which the upholstery fabric then engages with the other corresponding adhesive closure part. In this way, seam and shape geometries can be created at the respective seat depending on the design.
  • a generic adhesive closure member is known with a carrier tape arranged thereon Verhakungs instituten and with a carrier tape on the side facing away from the Verhakungs instituten cover band, which is wider than the carrier tape, so that free side edge portions of the cover strip on both sides beyond the associated longitudinal edges of the carrier tape out extend.
  • the two free side edge portions of the cover strip are folded around itself so that the end edges of the free side edge areas facing the longitudinal edges of the carrier tape, the cover strip forms a type of sealing lip on both sides, each along the Verhakungsetti having area extends and bears against the wall parts of the foam mold, which surround the mold cavity in which the interlocking elements are received during the foaming process.
  • this sealing lip Due to the foam material introduced into the foam mold, this sealing lip is pressed against the facing wall parts of the mold, the sealing lip conforming to the wall regions forming the sealing surface due to a certain flexibility in the region of the fold line, so that the desired improvement of the sealing effect of the foam barrier is achieved.
  • the carrier tape may comprise at least one rigid reinforcing element, which preferably extends in the manner of a bending wire along the carrier tape. This results in foaming better installation properties for adhesive closure parts and due to the flexural rigidity of the reinforcing element, the adhesive closure parts once inserted in the respective foam mold retain their position there.
  • the masking tape is formed from a plastic non-woven to allow such a good networking with the polyurethane molded foam for the production of upholstered parts in vehicle seats.
  • the pending arrest is often insufficient and triggering of the adhesive closure part from the foam can not be ruled out.
  • the invention is therefore based on the object to further improve the known solutions to the effect that is guaranteed by the respective side edge region of the cover strip a safely functioning foam barrier and that about it In addition, it comes to an optimal adhesion of the molded foam to the adhesive closure part.
  • a related object solves a fastener part with the features of claim 1 in its entirety.
  • the connecting means formed from a plurality of above single sticks, which make free of additional projections, the adhesion of the molded foam, the anchor elements are replaced with their projecting anchor parts by pin-like single sticks with a smooth surface, the extent vorsprung arthritis are designed. It is surprising to a person of ordinary skill in the art of adhesive fastener technology that it results in better adhesion results with a lower use of material, formed here by the single rods, than with the known anchor elements or with the known nonwoven material of the cover band.
  • the individual rods on the side facing away from the hooking elements of the adhesive closure part form only a small resistance for the inflow of the molded foam, so that the foam material can flow unimpeded to the single rods and this can cover the entire surface, without this leading to voids or other voids.
  • the solution according to the invention is realized to save space.
  • each individual rod has a cylindrical middle part, which merges into a convexly shaped head part on the head side and ends on the foot side via a concave configured foot part in a band-like support member and is integrally connected thereto.
  • the band-like carrier part may also be formed by the carrier band of the adhesive closure part itself, in which case the respective cover band has to engage with its side edge regions along the longitudinal edges of the carrier band.
  • the adhesive closure part has a carrier tape 10. On one side of the carrier tape 10 are arranged in series next to each other and successively arranged interlocking elements 12, wherein the interlocking elements 12 as shown in the Fig.2 seen in the longitudinal direction of the carrier tape 10 in oblique longitudinal and transverse rows 14 are arranged.
  • the adhesive closure part may be a so-called micro-adhesion closure in which 200 to 400 interlocking elements and more per cm 2 are provided on a carrier tape 10 having a thickness of 0.1 to 0.3 mm.
  • a method of manufacturing the carrier tape of such a micro-fastener is disclosed in U.S. Pat DE 198 28 856 C1 disclosed.
  • thermoplastic material is preferably fed to the gap between a pressure tool and a molding tool, in which a sieve having continuous cavities is used as the shaping element and in which the interlocking elements are formed by the plastic which at least partially hardens in the cavities of the sieve.
  • the carrier tape 10 has a rigid stiffening profile which extends along the entire length of the carrier tape 10.
  • This stiffening profile consists in the embodiment shown of a wire 16, in particular in the form of a metal wire.
  • the wire 16 is firmly connected to the carrier tape 10 on its rear side facing away from the interlocking elements 12 via an adhesive agent designated as a whole by 18.
  • the adhesive agent may for example consist of a moisture-curing PU.
  • the adhesive agent 18 completely covers one side of the carrier tape 10 and is firmly connected thereto.
  • the diameter ratios are chosen such that the thickness of the adhesive agent 18 corresponds to the thickness of the wire 16. It would also be conceivable that the adhesive agent 18 only partially absorbs the wire 16 with its predetermined diameter in terms of its thickness.
  • the adhesive agent 18 has on its, the carrier tape 10 side facing away from a masking tape 20, preferably in the form of a textile or plastic fleece.
  • the cover strip 20 projects laterally along the longitudinal edges 33 of the carrier tape 10 by a predeterminable distance, ie a free side edge region 21 with the cover strip 20 is formed on both sides of the carrier strip 10, this free side edge region 21 being provided to the wall part 22 the upper side of a receiving whistle 24, which is part of a foaming mold, which in the Fig.1 is not reproduced.
  • the receiving whistle 24 has a mold cavity in the form of a recess 28, wherein the free cross section is adapted to be included in this mold cavity carrier tape 10 of the adhesive closure member with the hooking elements 12 in the form of hooking fungi.
  • the interlocking elements 12 are usually the end face for storage with the bottom of the recess 28th
  • the free side edge portions 21 of the cover strip 20 are, as is made Fig.1 it can be seen about itself in the direction of the Verhakungs institute 12 having front, ie folded to the receiving whistle 24 facing side, wherein the fold lines 29 each extend in the longitudinal direction of the cover strip 10 and in the embodiment shown with the side walls 35 of the receiving whistle 24 are aligned.
  • the receiving whistle 24 adhesive closure part as shown in the Fig.1 is shown, therefore, the masking tape 20 on the wall parts 22, which limit the mold cavity or recess 28 laterally, with a double material layer.
  • This double layer of the folded cover strip 20 acts during the foaming process, ie when filling the foam material in the foam mold, such as a lip seal, which prevents the penetration of foam material into the recess 28, which is additionally favored by the fleece-like configuration, so that the hooking elements 12 of Carrier tape 10, which are received in the recess 28, are protected against the risk of sticking foam material penetrating and therefore unusable.
  • the cover strip 20 which is preferably formed from a nonwoven, obtains its ferromagnetic property by embedding ferromagnetic particles in the material of the cover strip 20.
  • a nonwoven as a cover strip 20 allows a good sealing effect against the polyurethane molded foam, for the production of upholstered parts for vehicle seats including passenger seats is introduced into the foam mold, so that it is ensured that the adhesive closure parts are securely anchored by the foaming on the cushion part for their subsequent use and connection with a reference material of a seat.
  • a connecting means 36 is provided for the molded foam.
  • the band-like connecting means 36 consists of a plurality of above individual rods 38, of which in the Figure 3 one is enlarged.
  • the pertinent individual rods 38 allow vorsprungsok, ie without protruding anchor elements, the adhesion of the molded foam to the actual adhesive closure part.
  • the single sticks 38 can be compared to those in the DE 198 28 856 C2
  • the respective shaping cavity of the screen is not completely filled with the plastic material, so that before reaching the mold base already on the curing or curing of the plastic material is present, so that the single rod 38 is not at its free end get the head design, as they are characteristic of the Verhakungsimplantation 12 as a mushroom closure part.
  • the individual rods 38 are similar to the stems of the hooking elements 12 with respect to their middle part, to which the head parts adjoin the free end.
  • the individual rods 38 are integral with the band-like connection means 36 made of plastic material. To produce the connection between connecting means 36 and the back of the cover strip 20, in turn, serves a suitable adhesive agent.
  • the connecting means 36 needs contrary to the illustration according to the Fig. 1 and 4 not to extend over the entire width of the cover strip 20; It is sufficient here, if appropriate, only a partial extension (not shown). Furthermore, in the sense of a back-to-back embodiment, the individual rods 38 could be arranged on the back of the carrier tape 20 with the hooking elements 12, in which case the covering regions (respective free side edge region 21) would have to be connected along the longitudinal edges 33 of the carrier tape 10 (not shown).
  • each single rod 38 has a cylindrical middle part 40, which merges the head side in a convex ausgestaltetes head part 42 and the foot ends via a concave ausgestaltetes foot in a band-like support member 46 as part of the connecting means 36.
  • the individual rods 38 are arranged in longitudinal rows 48 and transverse rows 50. In this way, a kind of board pattern is created and at the junctions between longitudinal rows 48 and transverse rows 50, a single rod 38 is arranged in each case.
  • the Figure 4 clearly that the distances between the adjacent individual rods 38 from a longitudinal row 48 and a assignable transverse row 50 are substantially equal.
  • the spacings of the adjacently opposing individual rods amount to 400 to 700 .mu.m, preferably about 600 microns.
  • the diameter of the central portion 40 is about 200 microns, the size ratios are illustrated with the scale X, in the Figure 3 top left shows an aspect ratio of about 200 microns.
  • the height of each single rod 38 is about 400 microns and the total height of support member 46 with attached single rod 38 amounts to about 600 microns.
  • the single rods 38 at least partially provided with a coating which improves the adhesion or adhesion of the foam.
  • the pertinent coating may have a gradient effect in such a way that the molded foam is attracted to the individual rods 38 and then immediately cures there. It is possible with suitable methods to increase the surface energy of the plastic material, for example by means of plasma processes, corona processes and gas fluorination processes.

Landscapes

  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Adhesive Tapes (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Connection Of Plates (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Seal Device For Vehicle (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

A hook and loop connector piece includes a support band (10) with hooking elements (12) arranged on one side and at least one cover strip (20) on an opposite side. The cover strip forms at least one free lateral edge region (21) extending over the corresponding lateral edge (33) of the support band (10). The free lateral edge region (21) of the cover strip (20) may be folded over itself, along a fold line (29) extending in the longitudinal direction. The terminal edge (31) of the free lateral edge region (21) of the cover strip (20) is turned towards the corresponding lateral edge (33) of the support band (10). On the side of the hook and loop connector piece away from the hooking elements (12), a connector (36) for a molded foam is provided. The connector (36) is embodied as a number of projecting separate rods (38) performing the adhesion of the foam without additional projections.

Description

Die Erfindung betrifft ein Haftverschlußteil mit einem Trägerband mit auf diesem auf einer Seite angeordneten Verhakungselementen sowie mit mindestens einem Abdeckband, das mindestens einen freien Seitenrandbereich bildet, der sich über den zuordenbaren Längsrand des Trägerbandes hinaus erstreckt, wobei der jeweilige freie Seitenrandbereich des jeweiligen Abdeckbandes in Richtung auf das Trägerband längs einer in Längsrichtung verlaufenden Falzlinie über sich selbst derart umfaltbar ist, dass der Endrand des jeweiligen freien Seitenrandbereichs des Abdeckbandes dem zuordenbaren Längsrand des Trägerbandes zugekehrt ist, wobei auf der den Verhakungselementen abgewandten Seite des Haftverschlußteils ein Verbindungsmittel für einen Formschaum vorgesehen ist.The invention relates to an adhesive closure part with a carrier tape with interlocking elements arranged thereon on one side and with at least one cover strip which forms at least one free side edge region which extends beyond the assignable longitudinal edge of the carrier strip, wherein the respective free side edge region of the respective cover strip in the direction on the carrier tape along a longitudinally extending fold line over itself is foldable such that the end edge of the respective free side edge portion of the cover strip facing the assignable longitudinal edge of the carrier tape, wherein on the side facing away from the Verhakungselementen of the adhesive closure part is provided a connecting means for a molded foam.

Haftverschlußteile dieser Art, bei denen sich an der Verhakungs- oder Vorderseite des Trägerbandes eine Vielzahl von einstückig ausgebildeten Verhakungselementen in Form von Verdickungen aufweisenden Stengeln befindet, sind handelsüblich. Ein Herstellverfahren zum Herstellen des Trägerbandes solcher Haftverschlußteile ist in der DE 198 28 856 C1 beschrieben. Bei diesem Verfahren wird vorzugsweise ein thermoplastischer Kunststoff, insbesondere Polyolefin oder Polyamid, in plastischem oder flüssigem Zustand einem Spalt zwischen einem Druckwerkzeug und einem Formwerkzeug zugeführt, wobei als formgebendes Element am Formwerkzeug ein durchgehende Hohlräume aufweisendes Sieb verwendet wird und die Verhakungselemente dadurch gebildet werden, dass der thermoplastische Kunststoff in den Hohlräumen des Siebes zumindest teilweise erhärtet. Auf diese Weise wird ein sog. Mikrohaftverschluß mit 200 bis 400 Verhakungselementen pro cm2 gebildet. Anstelle der hierbei geformten pilzartigen Verhakungselemente kann auch ein Trägerband in Form eines textilen Materials vorgesehen sein, bei dem die Verhakungselemente durch ein beispielsweise mit dem textilen Trägerband einstückiges Schlaufenmaterial gebildet sind. Anstelle des Schlaufenmaterials kann aber auch ein Flausch oder eine Pilzstruktur verwendet werden.Adhesive closure parts of this type, in which there is a plurality of integrally formed Verhakungselementen in the form of thickened stems having on the Verhakungs- or front side of the carrier tape, are commercially available. A manufacturing method for producing the carrier tape such adhesive closure parts is in the DE 198 28 856 C1 described. In this method, a thermoplastic material, in particular polyolefin or polyamide, is preferably supplied in a plastic or liquid state to a gap between a pressure tool and a molding tool, wherein as a shaping element on the molding tool a sieve having continuous cavities is used and the interlocking elements are formed by at least partially hardening the thermoplastic in the cavities of the sieve. In this way, a so-called micro-adhesion closure with 200 to 400 interlocking elements per cm 2 is formed. Instead of the mushroom-like hooking elements formed in this case, it is also possible to provide a carrier strip in the form of a textile material, in which the hooking elements are formed by a loop material integral with the textile carrier strip, for example. Instead of the loop material, however, a fleece or a mushroom structure can also be used.

Derartige Haftverschlußteile werden vielfältig eingesetzt, beispielsweise in der Kraftfahrzeugtechnik, der Bodenverlegetechnik, für Bekleidung jedweder Art und für spezielle Anwendungen im Maschinenbau. Die Haftverschlußteile haben sich auf diesen Gebieten als eine lösbare und funktionssichere Verbindungs- und Verschlußtechnik bewährt. Sofern solche Haftverschlußteile für Flug- oder Fahrzeugsitze eingesetzt werden, dienen sie unter anderem dazu, Sitzbezüge an Schaumkörperteilen, bestehend aus einem Formschaum, zu befestigen, wobei die einen Haftverschlußteile in das Polsterschaummaterial beim Herstellen des jeweiligen Sitzes mit eingeschäumt werden und das Haftverschlußteil mit den korrespondierenden Verhakungselementen am Polsterbezugsmaterial festgelegt, insbesondere festgenäht wird. Für die Herstellung der Schaumkörperteile werden die Haftverschlußteile in sog. Aufnahmepfeifen einer Einschäumform eingelegt und durch Einbringen von Schaummaterial in die freien Querschnitte der Einschäumform, vorzugsweise von Polyurethan(PU)-Schaum, werden die Haftverschlußteile beim Einschäumvorgang an den Schaumkörperteilen befestigt. Die eingesetzten Teile stehen in der Regel über die sonstigen Wandungen in der Einschäumform vor und bilden so später im Schaumkörperteil nutartige Vertiefungen, in die der Polsterbezugsstoff mit dem anderen korrespondierenden Haftverschlußteil dann eingreift. Auf diese Art und Weise lassen sich Naht- und Formgeometrien am jeweiligen Sitz je nach Design erstellen.Such fastener parts are used in many ways, for example in automotive technology, the floor laying technique, for clothing of any kind and for special applications in mechanical engineering. The fastener parts have proven in these areas as a detachable and reliable connection and locking technology. If such fastener parts are used for air or vehicle seats, they serve, inter alia, to attach seat covers to foam body parts, consisting of a molded foam, the one adhesive fastener parts are foamed into the padding foam material in producing the respective seat and the adhesive closure member with the corresponding Interlocking elements fixed to the upholstery material, in particular is sewn. For the production of the foam body parts, the adhesive closure parts are inserted into so-called receiving pipes of a foam mold and by introducing foam material into the free cross sections of the foam mold, preferably of polyurethane (PU) foam, the adhesive closure parts are fastened to the foam body parts during the foaming process. The parts used are usually on the other walls in the foam and thus form later in the foam body part groove-like depressions into which the upholstery fabric then engages with the other corresponding adhesive closure part. In this way, seam and shape geometries can be created at the respective seat depending on the design.

Durch die DE-A-100 39 940 ist ein gattungsgemäßes Haftverschlußteil bekannt mit einem Trägerband mit auf diesem angeordneten Verhakungselementen sowie mit einem das Trägerband auf der von den Verhakungselementen abgewandten Seite überdeckenden Abdeckband, das breiter ist als das Trägerband, so dass sich freie Seitenrandbereiche des Abdeckbandes beidseits über die zugeordneten Längsränder des Trägerbandes hinaus erstrecken. Dadurch, dass bei der bekannten Lösung die beiden freien Seitenrandbereiche des Abdeckbandes so um sich selbst umgefaltet sind, dass die Endränder der freien Seitenrandbereiche den Längsrändern des Trägerbandes zugekehrt sind, bildet das Abdeckband beidseits eine Art Dichtlippe, die sich jeweils längs des die Verhakungselemente aufweisenden Bereiches erstreckt und an den Wandteilen der Einschäumform anliegt, die die Formmulde umgeben, in der die Verhakungselemente während des Schäumvorganges aufgenommen sind. Durch das in die Einschäumform eingebrachte Schaummaterial wird diese Dichtlippe gegen die zugekehrten Wandteile der Form angedrückt, wobei die Dichtlippe sich aufgrund einer gewissen Nachgiebigkeit im Bereich der Falzlinie an die die Dichtfläche bildenden Wandbereiche anschmiegt, so dass die gewünschte Verbesserung der Abdichtwirkung der Schaumbarriere erzielt wird.By the DE-A-100 39 940 a generic adhesive closure member is known with a carrier tape arranged thereon Verhakungselementen and with a carrier tape on the side facing away from the Verhakungselementen cover band, which is wider than the carrier tape, so that free side edge portions of the cover strip on both sides beyond the associated longitudinal edges of the carrier tape out extend. Characterized in that in the known solution, the two free side edge portions of the cover strip are folded around itself so that the end edges of the free side edge areas facing the longitudinal edges of the carrier tape, the cover strip forms a type of sealing lip on both sides, each along the Verhakungselemente having area extends and bears against the wall parts of the foam mold, which surround the mold cavity in which the interlocking elements are received during the foaming process. Due to the foam material introduced into the foam mold, this sealing lip is pressed against the facing wall parts of the mold, the sealing lip conforming to the wall regions forming the sealing surface due to a certain flexibility in the region of the fold line, so that the desired improvement of the sealing effect of the foam barrier is achieved.

Darüber hinaus kann bei der bekannten Lösung das Trägerband mindestens ein biegesteifes Verstärkungselement aufweisen, das sich vorzugsweise in der Art eines Biegedrahtes längs des Trägerbandes erstreckt. Hierdurch ergeben sich in Schäumformen bessere Verlegeeigenschaften für Haftverschlußteile und aufgrund der Biegesteifigkeit des Verstärkungselementes behalten die einmal in der jeweiligen Einschäumform eingelegten Haftverschlußteile ihre dortige Lage bei.In addition, in the known solution, the carrier tape may comprise at least one rigid reinforcing element, which preferably extends in the manner of a bending wire along the carrier tape. This results in foaming better installation properties for adhesive closure parts and due to the flexural rigidity of the reinforcing element, the adhesive closure parts once inserted in the respective foam mold retain their position there.

Des weiteren ist bei der bekannten Lösung das Abdeckband aus einem Kunststoffvlies gebildet, um dergestalt eine gute Vernetzung mit dem Polyurethan-Formschaum für die Herstellung von Polsterteilen bei Fahrzeugsitzen zu ermöglichen. Es hat sich jedoch gezeigt, dass insbesondere unter der späteren hohen Beanspruchung im täglichen Gebrauch des Sitzes die dahingehende Verhaftung oft nicht ausreicht und ein Auslösen des Haftverschlußteils aus dem Schaum ist nicht auszuschließen.Furthermore, in the known solution, the masking tape is formed from a plastic non-woven to allow such a good networking with the polyurethane molded foam for the production of upholstered parts in vehicle seats. However, it has been shown that, especially under the later high stress in the daily use of the seat, the pending arrest is often insufficient and triggering of the adhesive closure part from the foam can not be ruled out.

Um dem zu begegnen, ist im Stand der Technik schon vorgeschlagen worden ( US 4,693,921 ), auf der Rückseite des Trägerbandes mit den Verhakungselementen Ankerelemente anzubringen mit vorspringenden Ankerteilen, um dergestalt die Verhaftung mit dem Formschaum zu verbessern. Es hat sich jedoch in der Praxis gezeigt, dass trotz dieser Ankerelemente es nicht zu einer verbesserten Anhaftung des Schaums an dem Haftverschlußteil kommt; im Gegenteil, häufig sind die Ankerelemente Ursache dafür, dass während des Einschäumvorganges das Schaummaterial durch die Ankerelemente beim freien Fließen behindert wird mit der Folge, dass es im Bereich der Ankerelemente zu Lunkerstellen im Schaum kommt, also zu Hohlräumen, die wiederum ungewollt die Trennung von Haftverschlußteil und Formschaum begünstigen.To counter this, has already been proposed in the prior art ( US 4,693,921 ), on the back of the carrier tape with the hooking elements anchor elements to be attached with projecting anchor parts, so as to improve the arrest with the molded foam. However, it has been shown in practice that despite these anchoring elements, there is no better adhesion of the foam to the adhesive closure part; On the contrary, often the anchor elements cause that during the Einschäumvorganges the foam material is hindered by the anchor elements in free flow with the result that it comes in the anchor elements to Lunkerstellen in the foam, so to cavities, which in turn unintentionally the separation of Adhesive closure part and molded foam favor.

Ausgehend von diesem Stand der Technik liegt daher der Erfindung die Aufgabe zugrunde, die bekannten Lösungen dahingehend weiter zu verbessern, dass durch den jeweiligen Seitenrandbereich des Abdeckbandes eine sicher funktionierende Schaumbarriere gewährleistet ist und dass darüber hinaus es zu einer optimalen Anhaftung des Formschaumes an das Haftverschlußteil kommt. Eine dahingehende Aufgabe löst ein Haftverschlußteil mit den Merkmalen des Patentanspruches 1 in seiner Gesamtheit.Based on this prior art, the invention is therefore based on the object to further improve the known solutions to the effect that is guaranteed by the respective side edge region of the cover strip a safely functioning foam barrier and that about it In addition, it comes to an optimal adhesion of the molded foam to the adhesive closure part. A related object solves a fastener part with the features of claim 1 in its entirety.

Dadurch, dass gemäß dem kennzeichnenden Teil des Patentanspruches 1 das Verbindungsmittel aus einer Vielzahl an vorstehenden Einzelstäbchen gebildet, die frei von zusätzlichen Vorsprüngen die Anhaftung des Formschaums so vornehmen, sind die Ankerelemente mit ihren vorspringenden Ankerteilen durch zapfenartige Einzelstäbchen mit glatter Oberfläche ersetzt, die insoweit vorsprungfrei ausgestaltet sind. Es ist für einen Durchschnittsfachmann auf dem Gebiet der Haftverschlußtechnik überraschend, dass er mit einem geringeren Einsatz an Material, hier gebildet durch die Einzelstäbchen, zu besseren Verhaftungsresultaten kommt als mit den bekannten Ankerelementen oder mit dem bekannten Vliesmaterial des Abdeckbandes.Characterized in that according to the characterizing part of claim 1, the connecting means formed from a plurality of above single sticks, which make free of additional projections, the adhesion of the molded foam, the anchor elements are replaced with their projecting anchor parts by pin-like single sticks with a smooth surface, the extent vorsprungfrei are designed. It is surprising to a person of ordinary skill in the art of adhesive fastener technology that it results in better adhesion results with a lower use of material, formed here by the single rods, than with the known anchor elements or with the known nonwoven material of the cover band.

Die Einzelstäbchen auf der den Verhakungselementen abgewandten Seite des Haftverschlußteils bilden für das Einströmen des Formschaumes nur einen geringen Widerstand aus, so dass das Schaummaterial ungehindert zu den Einzelstäbchen strömen und diese vollflächig umfassen kann, ohne dass es hierbei zu Lunker- oder sonstigen Hohlstellen kommt. Durch die Allumfassung der Einzelstäbchen mit dem Formschaum ist über eine große Oberfläche die Anhaftung realisiert, wobei man die Einzelstäbchen mikroskopisch klein ausbilden kann und dennoch ist eine sichere Verhaftung gegenüber den Ankerelementen erreicht, die häufig mindestens die Größe der Verhakungselemente auf der gegenüberliegenden Seite haben oder noch größer ausgebildet sind, um möglichst tief in das Formschaummaterial eingreifen zu können. Insofern ist die erfindungsgemäße Lösung platzsparend realisiert.The individual rods on the side facing away from the hooking elements of the adhesive closure part form only a small resistance for the inflow of the molded foam, so that the foam material can flow unimpeded to the single rods and this can cover the entire surface, without this leading to voids or other voids. Due to the Allumfassung the single sticks with the foam form the adhesion is realized over a large surface, where you can form the single sticks microscopic and yet secure attachment to the anchor elements is achieved, which often have at least the size of Verhakungselemente on the opposite side or even are designed to be larger in order to engage as deeply as possible in the molded foam material can. In this respect, the solution according to the invention is realized to save space.

Darüber hinaus ist aufgrund der umgefalzten Seitenrandbereiche eine sichere Abdichtung in der Einschäumform (Pfeife) erreicht und die später zur Funktion des Haftverschlußteils notwendigen Verhakungselemente werden durch den Formschaum nicht unbrauchbar.In addition, due to the folded side edge areas a secure seal in the foam mold (whistle) is achieved and the necessary later for the function of the adhesive closure part hooking elements are not unusable by the foam molding.

Bei einer bevorzugten Ausführungsform des erfindungsgemäßen Haftverschlußteils weist jedes Einzelstäbchen ein zylindrisches Mittelteil auf, das kopfseitig in ein konvex ausgestaltetes Kopfteil übergeht und fußseitig über ein konkav ausgestaltetes Fußteil in ein bandartiges Trägerteil mündet und mit diesem einstückig verbunden ist. Durch den Wechsel von konvexer Formgebung zu konkaver unter Einbeziehung eines zylindrischen Mittelteils ist eine ideale Verhaftungsgeometrie erreicht, was praktische Versuche gezeigt haben. Das bandartige Trägerteil kann im Sinne einer sog. back-toback-Lösung auch durch das Trägerband des Haftverschlußteils selbst gebildet sein, wobei dann das jeweilige Abdeckband mit seinen Seitenrandbereichen entlang den Längsrändern des Trägerbandes anzugreifen hat.In a preferred embodiment of the adhesive closure part according to the invention, each individual rod has a cylindrical middle part, which merges into a convexly shaped head part on the head side and ends on the foot side via a concave configured foot part in a band-like support member and is integrally connected thereto. By changing from convex shape to concave with the inclusion of a cylindrical central part, an ideal arresting geometry has been achieved, which has been demonstrated by practical experiments. In the sense of a so-called back-to-back solution, the band-like carrier part may also be formed by the carrier band of the adhesive closure part itself, in which case the respective cover band has to engage with its side edge regions along the longitudinal edges of the carrier band.

Weitere vorteilhafte Ausführungsformen sind Gegenstand der sonstigen Unteransprüche.Further advantageous embodiments are the subject of the other dependent claims.

Im folgenden wird eine Ausführungsform des erfindungsgemäßen Haftverschlußteils anhand der Zeichnung näher erläutert. Dabei zeigen in prinzipieller und nicht maßstäblicher Darstellung die

Fig. 1
einen Ausschnitt einer Aufnahmepfeife für eine Einschäumform, wobei in die Formmulde der Aufnahmepfeife ein Haftverschlußteil eingelegt ist (teilweise im Schnitt, teilweise in Ansicht wiedergegeben);
Fig. 2
eine Draufsicht auf das Haftverschlußteil, gesehen mit Blickrichtung auf seine, die Verhakungselemente aufweisende Vorderseite;
Fig. 3
eine Seitenansicht auf ein einzelnes Einzelstäbchen als Teil des Verbindungsmittels;
Fig. 4
eine weitere Draufsicht auf das Haftverschlußteil, gesehen mit Blickrichtung auf seine, den Verhakungselementen abgekehrte Rückseite.
In the following an embodiment of the adhesive closure part according to the invention will be explained in more detail with reference to the drawing. This show in principle and not to scale representation of the
Fig. 1
a section of a receiving whistle for a foaming mold, wherein in the mold cavity of the receiving whistle a fastener part is inserted (partially in section, partially reproduced in view);
Fig. 2
a plan view of the adhesive fastener part, viewed in the direction of its, the Verhakungselemente having front side;
Fig. 3
a side view of a single single rod as part of the connecting means;
Fig. 4
a further plan view of the adhesive fastener part, seen with a view towards his, the Verhakungselementen back facing away.

Das erfindungsgemäße Haftverschlußteil weist ein Trägerband 10 auf. Auf der einen Seite des Trägerbandes 10 sind in Reihe nebeneinander und hintereinander angeordnete Verhakungselemente 12 vorhanden, wobei die Verhakungselemente 12 gemäß der Darstellung nach der Fig.2 zur Längsrichtung des Trägerbandes 10 gesehen in schräg verlaufenden Längs- und Querreihen 14 angeordnet sind. Beispielsweise kann es sich bei dem Haftverschlußteil um einen sog. Mikrohaftverschluß handeln, bei dem 200 bis 400 Verhakungselemente und mehr pro cm2 an einem Trägerband 10 mit einer Dicke von 0,1 bis 0,3 mm vorgesehen sind. Ein Verfahren zum Herstellen des Trägerbandes eines derartigen Mikrohaftverschlusses ist in der DE 198 28 856 C1 offenbart. Bei diesem bekannten Verfahren wird vorzugsweise ein thermoplastischer Kunststoff dem Spalt zwischen einem Druckwerkzeug und einem Formwerkzeug zugeführt, bei dem als formgebendes Element ein durchgehende Hohlräume aufweisendes Sieb verwendet wird und bei dem die Verhakungselemente durch den in den Hohlräumen des Siebes zumindest teilweise erhärtenden Kunststoff gebildet sind.The adhesive closure part according to the invention has a carrier tape 10. On one side of the carrier tape 10 are arranged in series next to each other and successively arranged interlocking elements 12, wherein the interlocking elements 12 as shown in the Fig.2 seen in the longitudinal direction of the carrier tape 10 in oblique longitudinal and transverse rows 14 are arranged. For example, the adhesive closure part may be a so-called micro-adhesion closure in which 200 to 400 interlocking elements and more per cm 2 are provided on a carrier tape 10 having a thickness of 0.1 to 0.3 mm. A method of manufacturing the carrier tape of such a micro-fastener is disclosed in U.S. Pat DE 198 28 856 C1 disclosed. In this known method, a thermoplastic material is preferably fed to the gap between a pressure tool and a molding tool, in which a sieve having continuous cavities is used as the shaping element and in which the interlocking elements are formed by the plastic which at least partially hardens in the cavities of the sieve.

Das Trägerband 10 weist ein biegesteifes Versteifungsprofil auf, das sich längs der gesamten Länge des Trägerbandes 10 erstreckt. Dieses Versteifungsprofil besteht beim gezeigten Ausführungsbeispiel aus einem Draht 16, insbesondere in Form eines Metalldrahtes. Der Draht 16 ist über ein als Ganzes mit 18 bezeichnetes Klebstoffmittel mit dem Trägerband 10 auf dessen, den Verhakungselementen 12 abgewandten Rückseite fest verbunden. Das Klebstoffmittel kann beispielsweise aus einem feuchtigkeitsvernetzenden PU bestehen. Das Klebstoffmittel 18 deckt vollständig die eine Seite des Trägerbandes 10 ab und ist mit diesem fest verbunden. Die Durchmesserverhältnisse sind dabei derart gewählt, dass die Dicke des Klebstoffmittels 18 der Dicke des Drahtes 16 entspricht. Es wäre aber auch denkbar, dass das Klebstoffmittel 18 von seiner Dicke her den Draht 16 mit seinem vorgegebenen Durchmesser nur teilweise aufnimmt.The carrier tape 10 has a rigid stiffening profile which extends along the entire length of the carrier tape 10. This stiffening profile consists in the embodiment shown of a wire 16, in particular in the form of a metal wire. The wire 16 is firmly connected to the carrier tape 10 on its rear side facing away from the interlocking elements 12 via an adhesive agent designated as a whole by 18. The adhesive agent may for example consist of a moisture-curing PU. The adhesive agent 18 completely covers one side of the carrier tape 10 and is firmly connected thereto. The diameter ratios are chosen such that the thickness of the adhesive agent 18 corresponds to the thickness of the wire 16. It would also be conceivable that the adhesive agent 18 only partially absorbs the wire 16 with its predetermined diameter in terms of its thickness.

Das Klebstoffmittel 18 weist auf seiner, dem Trägerband 10 abgewandten Seite ein Abdeckband 20 auf, vorzugsweise in Form eines Textil- oder Kunststoffvlieses. Das Abdeckband 20 steht seitlich entlang den Längsrändern 33 des Trägerbandes 10 um einen vorgebbaren Abstand über, d.h. es wird beidseits des Trägerbandes 10 jeweils ein freier Seitenrandbereich 21 mit dem Abdeckband 20 gebildet, wobei dieser freie Seitenrandbereich 21 dazu vorgesehen ist, an den Wandteil 22 an der Oberseite einer Aufnahmepfeife 24 anzuliegen, die Bestandteil einer Einschäumform ist, die in der Fig.1 nicht wiedergegeben ist. Die Aufnahmepfeife 24 weist eine Formmulde in Form einer Ausnehmung 28 auf, wobei deren freier Querschnitt dem in dieser Formmulde aufzunehmenden Trägerband 10 des Haftverschlußteils mit dessen Verhakungselementen 12 in Form von Verhakungspilzen angepaßt ist. Die Verhakungselemente 12 kommen dabei in der Regel stirnseitig zur Ablage mit dem Grund der Ausnehmung 28.The adhesive agent 18 has on its, the carrier tape 10 side facing away from a masking tape 20, preferably in the form of a textile or plastic fleece. The cover strip 20 projects laterally along the longitudinal edges 33 of the carrier tape 10 by a predeterminable distance, ie a free side edge region 21 with the cover strip 20 is formed on both sides of the carrier strip 10, this free side edge region 21 being provided to the wall part 22 the upper side of a receiving whistle 24, which is part of a foaming mold, which in the Fig.1 is not reproduced. The receiving whistle 24 has a mold cavity in the form of a recess 28, wherein the free cross section is adapted to be included in this mold cavity carrier tape 10 of the adhesive closure member with the hooking elements 12 in the form of hooking fungi. The interlocking elements 12 are usually the end face for storage with the bottom of the recess 28th

Die freien Seitenrandbereiche 21 des Abdeckbandes 20 sind, wie dies aus Fig.1 ersichtlich ist, über sich selbst in Richtung auf die die Verhakungselemente 12 aufweisende Vorderseite, d.h. zu der der Aufnahmepfeife 24 zugekehrten Seite hin umgefaltet, wobei sich die Falzlinien 29 jeweils in Längsrichtung des Abdeckbandes 10 erstrecken und bei dem gezeigten Ausführungsbeispiel mit den Seitenwänden 35 der Aufnahmepfeife 24 fluchten. Bei an die Aufnahmepfeife 24 angelegtem Haftverschlußteil, wie es in der Fig.1 dargestellt ist, liegt daher das Abdeckband 20 auf den Wandteilen 22, die die Formmulde oder Ausnehmung 28 seitlich begrenzen, mit einer doppelten Materiallage auf. Diese Doppellage des umgefalteten Abdeckbandes 20 wirkt beim Schäumvorgang, d.h. beim Einfüllen des Schaummaterials in die Einschäumform, wie eine Lippendichtung, die das Eindringen von Schaummaterial in die Ausnehmung 28 verhindert, was noch zusätzlich begünstigt wird durch die vliesartige Ausgestaltung, so dass die Verhakungselemente 12 des Trägerbandes 10, die in der Ausnehmung 28 aufgenommen sind, gegen die Gefahr geschützt sind, von eindringendem Schaummaterial verklebt und mithin unbrauchbar zu werden.The free side edge portions 21 of the cover strip 20 are, as is made Fig.1 it can be seen about itself in the direction of the Verhakungselemente 12 having front, ie folded to the receiving whistle 24 facing side, wherein the fold lines 29 each extend in the longitudinal direction of the cover strip 10 and in the embodiment shown with the side walls 35 of the receiving whistle 24 are aligned. When applied to the receiving whistle 24 adhesive closure part, as shown in the Fig.1 is shown, therefore, the masking tape 20 on the wall parts 22, which limit the mold cavity or recess 28 laterally, with a double material layer. This double layer of the folded cover strip 20 acts during the foaming process, ie when filling the foam material in the foam mold, such as a lip seal, which prevents the penetration of foam material into the recess 28, which is additionally favored by the fleece-like configuration, so that the hooking elements 12 of Carrier tape 10, which are received in the recess 28, are protected against the risk of sticking foam material penetrating and therefore unusable.

Längs der Wandteile 22 der Aufnahmepfeife 24 sind Permanentmagnetleisten 30 oder eine Reihe von einzelnen Permanentmagneten angeordnet, die zusammen mit der ferromagnetischen Eigenschaft des Abdeckbandes 20 eine magnetische Halteeinrichtung bilden, durch die die umgefalteten Seitenrandbereiche 21 des Abdeckbandes 20 und damit des Haftverschlußteils an der Aufnahmepfeife 24 gesichert werden. Insbesondere das Abdeckband 20, das vorzugsweise aus einem Vlies gebildet ist, erhält seine ferromagnetische Eigenschaft durch Einbetten von ferromagnetischen Partikeln in das Material des Abdeckbandes 20. Die Verwendung eines Vlieses als Abdeckband 20 ermöglicht eine gute Abdichtwirkung gegenüber dem Polyurethan-Formschaum, der für die Herstellung von Polsterteilen für Fahrzeugsitze einschließlich Fluggastsitze in die Einschäumform eingebracht wird, so dass gewährleistet ist, dass die Haftverschlußteile durch das Einschäumen sicher am Polsterteil für ihre spätere Verwendung und Verbindung mit einem Bezugsmaterial eines Sitzes verankert werden.Along the wall parts 22 of the receiving whistle 24 permanent magnet strips 30 or a series of individual permanent magnets are arranged, which together with the ferromagnetic property of the cover strip 20 form a magnetic holding device by which the folded side edge portions 21 of the cover strip 20 and thus the adhesive closure member secured to the receiving whistle 24 become. In particular, the cover strip 20, which is preferably formed from a nonwoven, obtains its ferromagnetic property by embedding ferromagnetic particles in the material of the cover strip 20. The use of a nonwoven as a cover strip 20 allows a good sealing effect against the polyurethane molded foam, for the production of upholstered parts for vehicle seats including passenger seats is introduced into the foam mold, so that it is ensured that the adhesive closure parts are securely anchored by the foaming on the cushion part for their subsequent use and connection with a reference material of a seat.

Auf der den Verhakungselementen 12 abgewandten Seite des Haftverschlußteils ist ein Verbindungsmittel 36 für den Formschaum vorgesehen. Das bandartige Verbindungsmittel 36 besteht aus einer Vielzahl an vorstehenden Einzelstäbchen 38, von denen in der Fig.3 eines vergrößert wiedergegeben ist. Die dahingehenden Einzelstäbchen 38 erlauben vorsprungsfrei, also ohne vorstehende Ankerelemente, die Anhaftung des Formschaumes an dem eigentlichen Haftverschlußteil. Die Einzelstäbchen 38 lassen sich vergleichbar mit der in der DE 198 28 856 C2 beschriebenen Siebtechnologie zum Herstellen der Verhakungselemente 12 erzeugen, wobei jedoch der jeweilige Formgebungshohlraum des Siebes nicht vollständig mit dem Kunststoffmaterial ausgefüllt wird, so dass vor Erreichen des Formgrundes bereits das An- oder Aushärten des Kunststoffmaterials vorliegt, so dass die Einzelstäbchen 38 an ihrem freien Ende nicht die Kopfgestaltung erhalten, wie sie für die Verhakungselemente 12 als Pilzverschlußteil charakteristisch sind. Von ihrer Außenform her ähneln also die Einzelstäbchen 38 bezogen auf ihren Mittelteil den Stengeln der Verhakungselemente 12, an die sich die Kopfteile zum freien Ende hin anschließen. Ferner sind die Einzelstäbchen 38 einstückiger Bestandteil des bandartigen Verbindungsmittels 36 aus Kunststoffmaterial. Zum Herstellen der Verbindung zwischen Verbindungsmittel 36 und Rückseite des Abdeckbandes 20 dient wiederum ein geeignetes Klebstoffmittel.On the hooking elements 12 facing away from the side of the adhesive closure part, a connecting means 36 is provided for the molded foam. The band-like connecting means 36 consists of a plurality of above individual rods 38, of which in the Figure 3 one is enlarged. The pertinent individual rods 38 allow vorsprungsfrei, ie without protruding anchor elements, the adhesion of the molded foam to the actual adhesive closure part. The single sticks 38 can be compared to those in the DE 198 28 856 C2 However, the respective shaping cavity of the screen is not completely filled with the plastic material, so that before reaching the mold base already on the curing or curing of the plastic material is present, so that the single rod 38 is not at its free end get the head design, as they are characteristic of the Verhakungselemente 12 as a mushroom closure part. From their external shape, therefore, the individual rods 38 are similar to the stems of the hooking elements 12 with respect to their middle part, to which the head parts adjoin the free end. Furthermore, the individual rods 38 are integral with the band-like connection means 36 made of plastic material. To produce the connection between connecting means 36 and the back of the cover strip 20, in turn, serves a suitable adhesive agent.

Das Verbindungsmittel 36 braucht entgegen der Darstellung nach den Fig. 1 und 4 sich nicht über die gesamte Breite des Abdeckbandes 20 zu erstrecken; es genügt hier gegebenenfalls auch eine nur teilweise Erstreckung (nicht dargestellt). Des weiteren könnten auch im Sinne einer back-to-back-Ausgestaltung die Einzelstäbchen 38 auf der Rückseite des Trägerbandes 20 mit den Verhakungselementen 12 angeordnet sein, wobei dann die Abdeckbereiche (jeweiliger freier Seitenrandbereich 21) sich entlang den Längsrändern 33 des Trägerbandes 10 anzuschließen hätten (nicht dargestellt).The connecting means 36 needs contrary to the illustration according to the Fig. 1 and 4 not to extend over the entire width of the cover strip 20; It is sufficient here, if appropriate, only a partial extension (not shown). Furthermore, in the sense of a back-to-back embodiment, the individual rods 38 could be arranged on the back of the carrier tape 20 with the hooking elements 12, in which case the covering regions (respective free side edge region 21) would have to be connected along the longitudinal edges 33 of the carrier tape 10 (not shown).

Wie insbesondere die Fig.3 in vergrößerter Darstellung zeigt, weist jedes Einzelstäbchen 38 ein zylindrisches Mittelteil 40 auf, das kopfseitig in ein konvex ausgestaltetes Kopfteil 42 übergeht und fußseitig über ein konkav ausgestaltetes Fußteil in ein bandartiges Trägerteil 46 als Bestandteil des Verbindungsmittels 36 mündet. Wie sich des weiteren aus der Fig.4 ergibt, sind die Einzelstäbchen 38 in Längsreihen 48 und Querreihen 50 angeordnet. Dergestalt entsteht eine Art Brettmuster und an den Verbindungsstellen zwischen Längsreihen 48 und Querreihen 50 ist jeweils ein Einzelstäbchen 38 angeordnet. Insoweit macht die Fig.4 deutlich, dass die Abstände zwischen den benachbarten Einzelstäbchen 38 von einer Längsreihe 48 und einer zuordenbaren Querreihe 50 im wesentlichen gleich sind. Die Abstände der benachbart gegenüberliegenden Einzelstäbchen betragen dabei 400 bis 700 µm, vorzugsweise etwa 600 µm. Der Durchmesser des Mittelteils 40 beträgt etwa 200 µm, wobei die Größenverhältnisse mit dem Maßstab X verdeutlicht werden, der in der Fig.3 links oben ein Längenverhältnis von etwa 200 µm wiedergibt. Die Höhe eines jeden Einzelstäbchens 38 liegt bei ca. 400 µm und die Gesamthöhe von Trägerteil 46 mit aufgesetzten Einzelstäbchen 38 beläuft sich auf ca. 600 µm.How the particular Figure 3 shows in an enlarged scale, each single rod 38 has a cylindrical middle part 40, which merges the head side in a convex ausgestaltetes head part 42 and the foot ends via a concave ausgestaltetes foot in a band-like support member 46 as part of the connecting means 36. As further from the Figure 4 results, the individual rods 38 are arranged in longitudinal rows 48 and transverse rows 50. In this way, a kind of board pattern is created and at the junctions between longitudinal rows 48 and transverse rows 50, a single rod 38 is arranged in each case. In that regard makes the Figure 4 clearly that the distances between the adjacent individual rods 38 from a longitudinal row 48 and a assignable transverse row 50 are substantially equal. The spacings of the adjacently opposing individual rods amount to 400 to 700 .mu.m, preferably about 600 microns. The diameter of the central portion 40 is about 200 microns, the size ratios are illustrated with the scale X, in the Figure 3 top left shows an aspect ratio of about 200 microns. The height of each single rod 38 is about 400 microns and the total height of support member 46 with attached single rod 38 amounts to about 600 microns.

Um noch eine bessere Verhaftung der Einzelstäbchen 38 mit dem Formschaum erreichen zu können, kann es vorgesehen sein, die Einzelstäbchen 38 zumindest teilweise mit einer Beschichtung zu versehen, die die Anhaftung oder Adhäsion des Schaumes verbessert. Die dahingehende Beschichtung kann eine Gradientwirkung dergestalt aufweisen, dass der Formschaum zu den Einzelstäbchen 38 hingezogen wird und dort dann unmittelbar aushärtet. Man kann mit geeigneten Methoden die Oberflächenenergie des Kunststoffmaterials erhöhen, z.B. mittels Plasmaverfahren, Coronaverfahren sowie Gasfluorierungsverfahren.In order to be able to achieve even better adhesion of the individual rods 38 with the molded foam, it can be provided, the single rods 38 at least partially provided with a coating which improves the adhesion or adhesion of the foam. The pertinent coating may have a gradient effect in such a way that the molded foam is attracted to the individual rods 38 and then immediately cures there. It is possible with suitable methods to increase the surface energy of the plastic material, for example by means of plasma processes, corona processes and gas fluorination processes.

Claims (11)

  1. An adhesive fastener component having a support tape (10) with hook elements (12) disposed on one side of the latter, and having at least one covering tape (20) which forms at least one free lateral edge region (21) which extends over the assignable longitudinal edge (33) of the support tape (10), it being possible to fold the respective free lateral edge region (21) of the respective covering tape (2) back on itself towards the support tape (10) along a fold line (29) extending in the longitudinal direction such that the end edge (31) of the respective free lateral edge region (21) of the covering tape (20) faces towards the assignable longitudinal edge (33) of the support tape (10), connection means (36) for a moulding foam being provided on the side of the adhesive fastener component facing away from the hook elements (12), characterised in that the connection means (36) is formed from a plurality of protruding individual rods (38) which implement the adhesion of the moulding foam free from any additional projections.
  2. The adhesive fastener component according to Claim 1, characterised in that each individual rod (38) has a cylindrical centre portion (40) which on the head side passes into a convexly formed head portion (42) and on the foot side opens out via a concavely formed foot portion (44) into a tape-type support part (46) and is connected to the latter in one piece such as to form the connection means (36).
  3. The adhesive fastener component according to Claim 2, characterised in that the individual rods (38) are disposed in longitudinal (48) and lateral rows (50) and that the distances between the adjacent individual rods (38) of a longitudinal (48) and a lateral row (50) are equal.
  4. The adhesive fastener component according to Claim 2 or 3, characterised in that each individual rod (38) has a height of approximately 200 to 600 µm, and preferably of approximately 400 µm, and a diameter of approximately 200 to 250 µm.
  5. The adhesive fastener component according to any of Claims 2 to 4, characterised in that the tape-type support part (46) is itself the support tape (10) or can be connected to the support tape (10) or the covering tape (20).
  6. The adhesive fastener component according to any of Claims 1 to 5, characterised in that the respective free lateral edge region (21) is part of a covering tape (20) which is wider than the support tape (10) and which extends along the rear side of the latter.
  7. The adhesive fastener component according to Claim 6, characterised in that the covering tape (20) is disposed between the connection means (36) and the support tape (10).
  8. The adhesive fastener component according to any of Claims 1 to 7, characterised in that the part of the respective free lateral edge region (21) which can be folded back has a height which is greater than the height of the hook elements (12).
  9. The adhesive fastener component according to any of Claims 1 to 8, characterised in that it has ferromagnetic properties and a metal wire (16) which is embedded as a stiffener profile into a layer of adhesive which holds the support tape (10) and the covering tape (20) together.
  10. The adhesive fastener component according to any of Claims 1 to 9, characterised in that in order to improve the adhesion of the moulding foam to the individual rods (38) the latter have at least partially a coating.
  11. The adhesive fastener component according to Claim 10, characterised in that the coating can be applied by means of a plasma or corona process or by a gas fluorination process.
EP05715680A 2004-03-30 2005-03-03 Hook and loop connector piece Active EP1729608B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05715680T PL1729608T3 (en) 2004-03-30 2005-03-03 Hook and loop connector piece

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004015321A DE102004015321A1 (en) 2004-03-30 2004-03-30 Fastener part
PCT/EP2005/002216 WO2005096863A1 (en) 2004-03-30 2005-03-03 Hook and loop connector piece

Publications (2)

Publication Number Publication Date
EP1729608A1 EP1729608A1 (en) 2006-12-13
EP1729608B1 true EP1729608B1 (en) 2009-05-06

Family

ID=34960970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05715680A Active EP1729608B1 (en) 2004-03-30 2005-03-03 Hook and loop connector piece

Country Status (9)

Country Link
US (1) US7559124B2 (en)
EP (1) EP1729608B1 (en)
JP (1) JP4769245B2 (en)
CN (1) CN1937933B (en)
AT (1) ATE430502T1 (en)
DE (2) DE102004015321A1 (en)
ES (1) ES2325548T3 (en)
PL (1) PL1729608T3 (en)
WO (1) WO2005096863A1 (en)

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US9622922B2 (en) 2014-04-21 2017-04-18 Medline Industries, Inc. Stretch breathable protective absorbent article using bilaminate
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JP6647604B1 (en) * 2019-02-25 2020-02-14 ニッタモールド株式会社 Rock fasteners
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Also Published As

Publication number Publication date
EP1729608A1 (en) 2006-12-13
DE502005007238D1 (en) 2009-06-18
US20080222856A1 (en) 2008-09-18
PL1729608T3 (en) 2009-10-30
CN1937933A (en) 2007-03-28
WO2005096863A1 (en) 2005-10-20
ES2325548T3 (en) 2009-09-08
DE102004015321A1 (en) 2005-10-20
US7559124B2 (en) 2009-07-14
JP2007530189A (en) 2007-11-01
CN1937933B (en) 2010-05-05
ATE430502T1 (en) 2009-05-15
JP4769245B2 (en) 2011-09-07

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