EP1205257B1 - Device for applying flowable adhesive onto a strip material moving relative to the device, particularly onto an edge rim for furniture - Google Patents

Device for applying flowable adhesive onto a strip material moving relative to the device, particularly onto an edge rim for furniture Download PDF

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Publication number
EP1205257B1
EP1205257B1 EP01122738A EP01122738A EP1205257B1 EP 1205257 B1 EP1205257 B1 EP 1205257B1 EP 01122738 A EP01122738 A EP 01122738A EP 01122738 A EP01122738 A EP 01122738A EP 1205257 B1 EP1205257 B1 EP 1205257B1
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EP
European Patent Office
Prior art keywords
strip material
guide
slot
adhesive
guide device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01122738A
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German (de)
French (fr)
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EP1205257A3 (en
EP1205257A2 (en
Inventor
Colin Pedigrew
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Nordson Corp
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Nordson Corp
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Publication of EP1205257A3 publication Critical patent/EP1205257A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0204—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to the edges of essentially flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0258—Coating heads with slot-shaped outlet flow controlled, e.g. by a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined

Definitions

  • the present invention relates to a device for applying flowable adhesive to a belt material movable relative to the device, in particular furniture trimmings, with an adhesive channel formed in an applicator head, an application valve for selectively interrupting or releasing the adhesive flow in the adhesive channel, and one with the adhesive channel communicating slot nozzle with a slot and an elongated, slot-shaped outlet opening for dispensing adhesive on the strip material.
  • Such devices are used to apply adhesives on furniture parts or tape-like substrates areally.
  • the applicator head is regularly mounted to a frame and strip material is passed by a conveyor on the applicator head.
  • the adhesive exits the elongate outlet opening of the slot of the slot nozzle arrangement and reaches the Surface of the guided past the outlet opening substrate.
  • the elongated outlet opening of the slot is generally arranged transversely to the direction of the relative path between the application head and the substrate.
  • Document DE-U-29918424 discloses a device according to the first part of claim one.
  • the object of the present invention is to provide an application device and a guide device which is suitable for applying adhesive directly to a strip material or the like.
  • a job device is to be provided, with the lipping, strips or the like can be applied to furniture parts or other workpieces in a simple and precise manner.
  • the invention solves this problem in an application device of the type mentioned above in that a guide device for passing the strip material at the outlet opening of the slot nozzle along a defined path of movement is releasably attachable to the applicator head, that the guide means comprises a first guide element, which in operation comes into contact with one of the surface to be glued opposite the surface of the strip material, and has at least one further guide element, which comes into contact with an edge of the strip material in operation.
  • the invention further solves the problem by a guide device for passing a strip material at an outlet opening of a slot nozzle along a defined path of movement, wherein the guide means a first Guiding element which comes in operation with one of the surface to be glued opposite the surface of the strip material in contact, and has at least one further guide element, which comes in contact with an edge of the strip material in contact.
  • the invention enables in a structurally simple manner an accurate and reliable surface application of adhesive on tape material, edge banding for furniture, bars or the like.
  • the guide device according to the invention ensures that the strip material to be glued is guided past the outlet opening of the slot nozzle at an adjustable distance or in contact with the contactor nozzle, so that the flowable adhesive is reliably and uniformly applied to a surface of the strip material to be glued ,
  • the gluing as such and its quality can be influenced, because by adjusting the distance of the guide element from the outlet opening, the thickness of the glue application can be influenced.
  • the strip material to be glued is additionally guided laterally on a desired movement path, so that an optimal alignment of the strip material to be glued is achieved relative to the outlet opening of the slit nozzle.
  • the guide device is mounted pivotably on the application head by means of a rotary joint.
  • a pivotable mounting can be the Move guide device in a structurally simple manner such that on the one hand an adaptation to different thicknesses of the strip material is possible and on the other hand, the first guide element from a Andschreibwolf in which the tape material to be glued is pressed against the nozzle assembly, so that a contact with the surface to be glued arises is moved to a rest position, in which in the case that the production is interrupted or no gluing is to take place, the guide element comes neither in contact with the slot nozzle nor with the strip material.
  • the guide device be pivoted by means of a pneumatic cylinder and the first guide element is arranged at a distance from the rotary joint so that the distance of the first guide element from the outlet opening of the slot nozzle changes during pivoting of the guide device. In this way, the movement between the work and rest position in a simple manner.
  • a further preferred embodiment is characterized by a biasing device for biasing the guide device and / or the guide element in a rest position, in which the guide element is arranged at a distance from the slot nozzle.
  • the biasing means is formed as a spring. This ensures that in the case of an unwanted interruption of operation (emergency stop) the tape material to be glued is not pressed against the optionally heated nozzle nozzle, but the guide element is pivoted into a further spaced from the outlet opening of the slot nozzle rest position.
  • the first guide element is designed as a cylinder pin and is arranged substantially parallel to the outlet opening. These cylinder bolts are easy to manufacture and ensure safe guidance with low friction.
  • the first guide element could also be designed as a plate or rotatable roller.
  • two further edge guide elements can be fixed to one another at different distances from one another.
  • the substrate to be glued is guided on both sides so that no undesired offset arises relative to the elongated outlet opening of the slot. Due to the different distances from each other and adaptation to different widths of the strip material is possible.
  • the carrier is mounted together with the edge guide elements adjustable and fixable on the guide means, so that moreover both edge guide elements can be aligned together relative to the strip material.
  • the guide device has a guide slot formed by spaced plates, through which the band material to be glued is moved.
  • a guide slot can in particular already be processed in sections separate strip materials that are fed reliably through a guide slot slot, even if the strip material is compressible or flexible, as may be the case with edgebanders.
  • the application device 2 and guide device 3 shown in the figures serve to apply adhesive to a strip material movable relative to the application device 2, in particular for gluing so-called edge covers for furniture (furniture coverings), which are e.g. Made of a flat, flexible plastic material and glued to the outer surfaces of furniture or furniture parts. Of course, with other substrates such as strips, packaging material or the like. Be coated with adhesive surface.
  • an application head 2 has a main body 4 with an adhesive channel formed in this main body 4 (not shown).
  • a support rod 6 By means of a support rod 6, the applicator head 2 is mounted and positioned stationary.
  • the support rod 6 is provided at the lower end with a mounting flange 8 with holes 10 to be screwed to a stationary structure.
  • the application head 2 can be fastened steplessly in different positions on the support rod 6 by means of a clamping device 12.
  • a clamping screw is manually clamped by means of a handle 14 such that a frictional clamping connection between clamping device 12 and support rod 6 is formed, which is releasable for adjustment.
  • a nozzle assembly which is formed as a slot 16, screwed to the base body 4 so that adhesive can flow through the adhesive channel in the slot 16 and through a slot with an elongated, slot-like Outlet opening 18 can be discharged.
  • the strip material to be glued slides on a sliding plate 19 in the direction of the arrow 21 (FIG. 1), which illustrates the direction of relative movement.
  • an order valve (not shown) for selectively interrupting or releasing the adhesive flow into the adhesive channel and thus through the outlet opening 18 is arranged.
  • the order valve is pneumatically actuated.
  • it may be a needle valve in which a needle cooperates with a valve seat.
  • a closure body (not shown) is movably disposed in the slot of the slot nozzle 16 and seals the slot laterally.
  • the closure body is rigidly coupled to a cylindrical piston axially movably disposed within a manifold.
  • the closure body extends from the piston to the outlet opening 18 of the slot nozzle 16.
  • the width of the slot and thus the outlet opening 18 can be varied in the manner described above.
  • the entire applicator head 2 and thus the slot nozzle 16 can be exactly set the desired position of the slot and the outlet opening 18.
  • the guide device 3 shown separately in Figures 2, 5 and 6 is mounted directly to the applicator head 2, more precisely, the base body 2 of the applicator head by means of a rotary joint 26, so that the guide means 3 is mounted pivotably about an axis of rotation 28 relative to the applicator head 2.
  • the rotary joint 26 has a bolt 30, which is arranged in a recess of the base body 2, and a fastening nut 31st
  • the guide means 3 serves for defined passage of the strip material at the outlet opening 18 of the slot nozzle 16.
  • the strip material is first introduced through a slot 32 which is formed between two spaced plates 34, 36, which are interconnected by means of a connecting web 33.
  • the band material is using unillustrated funding through the Slit 32 is moved through and guided.
  • only one plate could be provided as a guide for the strip material in the inlet region.
  • the guide device 3 has a first guide element 38, which is designed as a rigid, externally polished cylinder pin and extends substantially parallel to the outlet opening 18.
  • the first guide element 38 is in its operative position at a defined, adjustable distance from the outlet opening of the slot nozzle (see FIG. 3) and in contact with a surface of the strip material which faces the surface of the strip material to be glued.
  • the guide member 38 is inserted into a receptacle 40 and can be removed or replaced by loosening a screw 42 so that it can be easily cleaned.
  • Two further edge guide elements 46, 48 fastened to a support 44 ensure that the strip material is guided laterally, in the exemplary embodiment upwards and downwards, in which the further edge guide elements 46, 48 come into contact come with opposite edges or edges of the strip material.
  • the carrier 44 is formed as a rod.
  • screws 50 By means of screws 50, the spacing of the guide elements 46, 48 from each other can vary in that the edge guide elements 46, 48 are moved to the support 44 after loosening the screw 50 and then fixed by tightening the screws 50. It is thus provided an adaptation to different width strip materials in a structurally simple manner. Due to the guidance of the guide element 38 and in addition the edge guide elements 46, 48, the band material to be glued is securely guided so that a uniform surface gluing takes place.
  • the carrier 44 can be moved vertically to set a so-called manufacturing zero point.
  • the guide device is pivotable about the axis of rotation 28 of the pivot bearing 26 with the aid of a pneumatic cylinder 58.
  • a pivot support 54 takes the receptacle 40 and thus the first guide member 38 and the other edge guide elements 46,48 together with the carrier 46.
  • the pneumatic cylinder 58 is acted upon by a compressed air line 60 with compressed gas such that the carrier 54 is pivoted by a piston rod 62 of the applicator head 2 and the base body 4 in a desired working position, so that the guide element 38 is at a desired distance to the outlet opening 18 ,
  • the carrier 54 pivots due to a spring integrated in the pneumatic cylinder 58 in a rest position in which the guide member 38 has a greater distance from the outlet opening 18 and the strip material is no longer led to the glue application at the outlet.
  • the spring is thus a biasing means for biasing the pivotable guide means 3 and the guide member 38 in a rest position in which the guide member 3 is spaced from the slot nozzle 16 is arranged.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A device for the two-dimensional application of free-flowing adhesive to strip material, especially to furniture edge banding. An adhesive channel is contained in an applicator head and an applicator valve selectively blocks or releases the flow of adhesive in the adhesive channel. A slot nozzle communicates with the adhesive channel, which nozzle has a slot-shaped exit opening for dispensing adhesive onto the strip material. A guide device for guiding the strip material past the exit opening of the slot nozzle along a defined path is removably attached to the applicator head. The guide device includes a first guide element which comes in contact during operation with the surface of the strip material opposite the surface to be glued, and at least one additional guide element which comes in contact during operation with an edge of the strip material.

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum flächigen Auftragen von fließfähigem Klebstoff auf ein relativ zu der Vorrichtung bewegbares Bandmaterial, insbesondere Möbelumleimer, mit einem in einem Auftragskopf ausgebildeten Klebstoffkanal, einem Auftragsventil zum wahlweisen Unterbrechen oder Freigeben des Klebstoffflusses in dem Klebstoffkanal, und einer mit dem Klebstoffkanal kommunizierenden Schlitzdüse mit einem Schlitz und einer länglichen, schlitzförmigen Austrittsöffnung zum Abgeben von Klebstoff auf das Bandmaterial.The present invention relates to a device for applying flowable adhesive to a belt material movable relative to the device, in particular furniture trimmings, with an adhesive channel formed in an applicator head, an application valve for selectively interrupting or releasing the adhesive flow in the adhesive channel, and one with the adhesive channel communicating slot nozzle with a slot and an elongated, slot-shaped outlet opening for dispensing adhesive on the strip material.

Derartige Vorrichtungen kommen zum Einsatz, um Klebstoffe auf Möbelteile oder bandartige Substrate flächig aufzutragen. Der Auftragskopf ist regelmäßig an einen Rahmen montiert, und Bandmaterial wird von einer Fördereinrichtung an dem Auftragskopf vorbeigeführt. Im Betrieb tritt der Klebstoff aus der länglichen Austrittsöffnung des Schlitzes der Schlitzdüsenanordnung aus und gelangt auf die Oberfläche des an der Austrittsöffnung vorbeigeführten Substrates. Die längliche Austrittsöffnung des Schlitzes ist dabei in der Regel quer zur Richtung der Relativwegung zwischen Auftragskopf und Substrat angeordnet.Such devices are used to apply adhesives on furniture parts or tape-like substrates areally. The applicator head is regularly mounted to a frame and strip material is passed by a conveyor on the applicator head. In operation, the adhesive exits the elongate outlet opening of the slot of the slot nozzle arrangement and reaches the Surface of the guided past the outlet opening substrate. The elongated outlet opening of the slot is generally arranged transversely to the direction of the relative path between the application head and the substrate.

Bei der Verklebung von sogenannten Umleimern an Kanten von Möbeln wird im Stand der Technik bisher so vorgegangen, dass die Kante eines Möbelstücks beleimt wird und anschließend ein sogenannter Umleimer, bei dem es sich um ein flexibles Materialband aus Kunststoff handelt, auf die zuvor beleimte Kante des Möbelstücks aufgedrückt wird, so dass eine Klebeverbindung entsteht. Die Beleimung des Möbelstücks wird mit hohem Aufwand manuell vorgenommen oder mithilfe von automatischen Vorrichtungen, die den Klebstoff maschinell auf die Möbelstücke aufbringen. In beiden Fällen ist ein hoher Aufwand erforderlich.In the bonding of so-called edge banding on edges of furniture, the procedure in the prior art has hitherto been to glue the edge of a piece of furniture and subsequently to a so-called lipping, which is a flexible plastic material strip, onto the previously glued edge of the piece of furniture Furniture is pressed so that an adhesive bond is formed. The gluing of the piece of furniture is done manually at great expense or by means of automatic devices that apply the adhesive to the furniture by machine. In both cases, a lot of effort is required.

Dokument DE-U-29918424 offenbart eine Vorrichtung gemäß des erste Teils des Anspruchs eins.Document DE-U-29918424 discloses a device according to the first part of claim one.

Aufgabe der vorliegenden Erfindung ist es, eine Auftrags-Vorrichtung und eine Führungseinrichtung bereitzustellen, die geeignet ist, Klebstoff direkt auf ein Bandmaterial o. dgl. aufzutragen. Insbesondere soll eine Auftrags-Vorrichtung bereitgestellt werden, mit der Umleimer, Leisten oder dergleichen auf einfache und präzise Weise auf Möbelteile oder andere Werkstücke aufgebracht werden können.The object of the present invention is to provide an application device and a guide device which is suitable for applying adhesive directly to a strip material or the like. In particular, a job device is to be provided, with the lipping, strips or the like can be applied to furniture parts or other workpieces in a simple and precise manner.

Die Erfindung löst diese Aufgabe bei einer Auftrags-Vorrichtung der eingangs genannten Art dadurch, dass eine Führungseinrichtung zum Vorbeiführen des Bandmaterials an der Austrittsöffnung der Schlitzdüse entlang einer definierten Bewegungsbahn lösbar an dem Auftragskopf befestigbar ist, dass die Führungseinrichtung ein erstes Führungselement aufweist, welches im Betrieb mit einer der zu beleimenden Oberfläche gegenüberliegenden Oberfläche des Bandmaterials in Kontakt kommt, und mindestens ein weiteres Führungselement aufweist, welches im Betrieb mit einer Kante des Bandmaterials in Kontakt kommt.The invention solves this problem in an application device of the type mentioned above in that a guide device for passing the strip material at the outlet opening of the slot nozzle along a defined path of movement is releasably attachable to the applicator head, that the guide means comprises a first guide element, which in operation comes into contact with one of the surface to be glued opposite the surface of the strip material, and has at least one further guide element, which comes into contact with an edge of the strip material in operation.

Die Erfindung löst die Aufgabe ferner durch eine Führungseinrichtung zum Vorbeiführen eines Bandmaterials an einer Austrittsöffnung einer Schlitzdüse entlang einer definierten Bewegungsbahn, wobei die Führungseinrichtung ein erstes Führungselement aufweist, welches im Betrieb mit einer der zu beleimenden Oberfläche gegenüberliegenden Oberfläche des Bandmaterials in Kontakt kommt, und mindestens ein weiteres Führungselement aufweist, welches im Betrieb mit einer Kante des Bandmaterials in Kontakt kommt.The invention further solves the problem by a guide device for passing a strip material at an outlet opening of a slot nozzle along a defined path of movement, wherein the guide means a first Guiding element which comes in operation with one of the surface to be glued opposite the surface of the strip material in contact, and has at least one further guide element, which comes in contact with an edge of the strip material in contact.

Die Erfindung ermöglicht auf konstruktiv einfache Weise eine genaue und zuverlässige flächige Aufbringung von Klebstoff auf Bandmaterial, Umleimer für Möbelstücke, Leisten oder dergleichen. Die erfindungsgemäße Führungseinrichtung sorgt mittels des ersten Führungselementes dafür, dass das zu beleimende Bandmaterial in einem einstellbaren Abstand von der Austrittsöffnung der Schlitzdüse oder mit Kontakt mit der Schützdüse vorbeigeführt wird, so dass der fließfähige Klebstoff zuverlässig und gleichmäßig auf eine zu beleimende Oberfläche des Bandmaterials aufgebracht wird. Ferner ist erfindungsgemäß die Beleimung als solche und deren Qualität beeinflussbar, denn durch Einstellung des Abstandes des Führungselementes von der Austrittsöffnung kann die Dicke des Leimauftrags beeinflußt werden. Mittels mindestens eines weiteren (Kanten-) Führungselementes wird das zu beleimende Bandmaterial zusätzlich seitlich auf einer gewünschten Bewegungsbahn geführt, so dass eine optimale Ausrichtung des zu beleimenden Bandmaterials relativ zu der Austrittsöffnung der Schlitzdüse erreicht wird. Durch die Befestigung der Führungseinrichtung unmittelbar an dem Auftragskopf entfallen aufwendige Trägerstrukturen, und die Führungseinrichtung kann auf einfache Weise an bestehenden Auftragsköpfen nachgerüstet werden. Soll ein Auftragskopf für eine abweichende Anwendung genutzt werden, bei der eine Führung eines bandförmigen Substrates nicht notwendig ist, dann kann die Führungsvorrichtung auf einfache Weise von dem Auftragskopf demontiert werden. Nach der erfindungsgemäßen Aufbringung von Klebstoff auf das Bandmaterial kann dieses mit anderen Werkstücken verklebt werden, beispielsweise ein Umleimer mit einem Möbelstück.The invention enables in a structurally simple manner an accurate and reliable surface application of adhesive on tape material, edge banding for furniture, bars or the like. By means of the first guide element, the guide device according to the invention ensures that the strip material to be glued is guided past the outlet opening of the slot nozzle at an adjustable distance or in contact with the contactor nozzle, so that the flowable adhesive is reliably and uniformly applied to a surface of the strip material to be glued , Furthermore, according to the invention, the gluing as such and its quality can be influenced, because by adjusting the distance of the guide element from the outlet opening, the thickness of the glue application can be influenced. By means of at least one further (edging) guide element, the strip material to be glued is additionally guided laterally on a desired movement path, so that an optimal alignment of the strip material to be glued is achieved relative to the outlet opening of the slit nozzle. By attaching the guide device directly to the applicator dispensed with expensive support structures, and the guide device can be retrofitted to existing guns in a simple manner. If an application head is to be used for a different application, in which a guide of a strip-shaped substrate is not necessary, then the guide device can be easily removed from the applicator head. After the application of adhesive according to the invention on the strip material this can be glued to other workpieces, such as a lipping with a piece of furniture.

Bei einer bevorzugten Ausführungsform der Erfindung wird vorgeschlagen, dass die Führungseinrichtung mittels eines Drehgelenks verschwenkbar an dem Auftragskopf gelagert ist. Durch eine derartige verschwenkbare Lagerung lässt sich die Führungseinrichtung auf konstruktiv einfache Weise derart bewegen, dass einerseits eine Anpasssung an unterschiedliche Dicken des Bandmaterials möglich ist und andererseits das erste Führungselement aus einer Andrückstellung, in der das zu beleimende Bandmaterial an die Düsenanordnung angedrückt wird, so dass ein Kontakt zu der zu beleimenden Oberfläche entsteht, in eine Ruhestellung bewegt wird, in der in dem Fall, dass die Produktion unterbrochen ist oder keine Beleimung erfolgen soll, das Führungselement weder in Kontakt mit der Schlitzdüse noch mit dem Bandmaterial kommt.In a preferred embodiment of the invention, it is proposed that the guide device is mounted pivotably on the application head by means of a rotary joint. By such a pivotable mounting can be the Move guide device in a structurally simple manner such that on the one hand an adaptation to different thicknesses of the strip material is possible and on the other hand, the first guide element from a Andrückstellung in which the tape material to be glued is pressed against the nozzle assembly, so that a contact with the surface to be glued arises is moved to a rest position, in which in the case that the production is interrupted or no gluing is to take place, the guide element comes neither in contact with the slot nozzle nor with the strip material.

Gemäß einer Weiterbildung dieser Ausführungsform wird vorgeschlagen, dass die Führungseinrichtung mittels eines Pneumatikzylinders verschwenkbar und das erste Führungselement beabstandet von dem Drehgelenk so angeordnet ist, dass sich bei Verschwenken der Führungseinrichtung der Abstand des ersten Führungselementes von der Austrittsöffnung der Schlitzdüse ändert. Auf diese Weise lässt sich die Bewegung zwischen der Arbeits- und Ruhestellung auf einfache Weise ermöglichen.According to a further development of this embodiment, it is proposed that the guide device be pivoted by means of a pneumatic cylinder and the first guide element is arranged at a distance from the rotary joint so that the distance of the first guide element from the outlet opening of the slot nozzle changes during pivoting of the guide device. In this way, the movement between the work and rest position in a simple manner.

Eine weitere bevorzugte Ausführungsform zeichnet sich aus durch eine Vorspanneinrichtung zum Vorspannen der Führungseinrichtung und/oder des Führungselementes in eine Ruhestellung, in der das Führungselement beabstandet von der Schlitzdüse angeordnet ist. Vorzugsweise ist die Vorspanneinrichtung als Feder ausgebildet. Hierdurch wird erreicht, daß im Fall einer unerwünschten Betriebsunterbrechung (Not-Aus) das zu beleimende Bandmaterial nicht an die ggf. erhitzte Schitzdüse angedrückt wird, sondern das Führungselement in eine weiter von der Austrittsöffnung der Schlitzdüse beabstandete Ruhestellung verschwenkt wird.A further preferred embodiment is characterized by a biasing device for biasing the guide device and / or the guide element in a rest position, in which the guide element is arranged at a distance from the slot nozzle. Preferably, the biasing means is formed as a spring. This ensures that in the case of an unwanted interruption of operation (emergency stop) the tape material to be glued is not pressed against the optionally heated nozzle nozzle, but the guide element is pivoted into a further spaced from the outlet opening of the slot nozzle rest position.

Bei einer Variante der erfindungsgemäßen Führungseinrichtung ist vorgesehen, dass das erste Führungselement als Zylinderbolzen ausgebildet ist und im wesentlichen parallel zur Austrittsöffnung angeordnet ist. Diese Zylinderbolzen sind einfach herstellbar und sorgen für eine sichere Führung bei geringer Reibung. Alternativ könnte das erste Führungselement auch als Platte oder rotierbare Rolle ausgebildet sein.In a variant of the guide device according to the invention it is provided that the first guide element is designed as a cylinder pin and is arranged substantially parallel to the outlet opening. These cylinder bolts are easy to manufacture and ensure safe guidance with low friction. Alternatively, the first guide element could also be designed as a plate or rotatable roller.

Bei einer weiteren bevorzugten Ausführungsform wird vorgeschlagen, dass zwei weitere Kanten-Führungselemente in unterschiedlichen Abständen zueinander an einem Träger festlegbar sind. Mittels zweier Kanten-Führungselemente wird das zu beleimende Substrat beidseitig so geführt, dass kein unerwünschter Versatz relativ zu der länglichen Austrittsöffnung des Schlitzes entsteht. Durch die unterschiedlichen Abstände zueinander ist auch eine Anpassung an unterschiedliche Breiten des Bandmaterials möglich.In a further preferred embodiment, it is proposed that two further edge guide elements can be fixed to one another at different distances from one another. By means of two edge-guiding elements, the substrate to be glued is guided on both sides so that no undesired offset arises relative to the elongated outlet opening of the slot. Due to the different distances from each other and adaptation to different widths of the strip material is possible.

Bevorzugt ist es ferner, dass der Träger zusammen mit den Kanten-Führungselementen verstellbar und festlegbar an der Führungseinrichtung gelagert ist, so dass darüber hinaus beide Kanten-Führungselemente gemeinsam relativ zu dem Bandmaterial ausgerichtet werden können.It is further preferred that the carrier is mounted together with the edge guide elements adjustable and fixable on the guide means, so that moreover both edge guide elements can be aligned together relative to the strip material.

Bei einer weiteren bevorzugten Ausführungsform wird vorgeschlagen, dass die Führungseinrichtung einen durch beabstandete Platten gebildeten Führungsschlitz aufweist, durch den das zu beleimende Bandmaterial hindurchbewegt wird. Durch einen Führungsschlitz lassen sich insbesondere bereits in Teilabschnitte getrennte Bandmaterialien verarbeiten, die durch einen Führungsschlitz zuverlässig der Schlitzdüse zugeführt werden, selbst dann, wenn das Bandmaterial stauchbar oder flexibel ist, wie dies bei Umleimern der Fall sein kann.In a further preferred embodiment, it is proposed that the guide device has a guide slot formed by spaced plates, through which the band material to be glued is moved. By a guide slot can in particular already be processed in sections separate strip materials that are fed reliably through a guide slot slot, even if the strip material is compressible or flexible, as may be the case with edgebanders.

Weitere bevorzugte Ausführungsformen sind in den Unteransprüchen angegeben und sind aus der nachfolgenden Figurenbeschreibung ersichtlich.Further preferred embodiments are specified in the subclaims and can be seen from the following description of the figures.

Die Erfindung ist nachstehend anhand von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Zeichnungen beschrieben. Es zeigen:

Fig. 1
eine erfindungsgemäße Vorrichtung zum Auftragen von Klebstoff in einer perspektivischen Ansicht;
Fig. 2
eine erfindungsgemäße Führungsvorrichtung in einer perspektivischen Ansicht;
Fig. 3
die Auftragsvorrichtung gemäß Fig. 1 mit montierter Führungsvorrichtung gemäß Fig. 2 in Seitenansicht;
Fig. 4
die Vorrichtung gemäß Fig. 3 in einer Draufsicht;
Fig. 5
die Führungsvorrichtung gemäß Fig. 2 in einer Seitenansicht;
Fig. 6
die Führungsvorrichtung gemäß Fig. 2 in einer Draufsicht;
The invention is described below by means of embodiments with reference to the accompanying drawings. Show it:
Fig. 1
an inventive device for applying adhesive in a perspective view;
Fig. 2
a guide device according to the invention in a perspective view;
Fig. 3
the application device of Figure 1 with mounted guide device of Figure 2 in side view.
Fig. 4
the device of Figure 3 in a plan view.
Fig. 5
the guide device of Figure 2 in a side view.
Fig. 6
the guide device of Figure 2 in a plan view.

Die in den Figuren dargestellte Auftrags-Vorrichtung 2 und Führungsvorrichtung 3 dient zum Auftragen von Klebstoff auf ein relativ zu der Auftrags-Vorrichtung 2 bewegbares Bandmaterial, insbesondere zum Beleimen von sogenannten Umleimern für Möbel (Möbelumleimer), die z.B. aus einem flachen, flexiblen Kunststoffmaterial bestehen und auf äußere Oberflächen von Möbeln oder Möbelteilen aufgeklebt werden. Selbstverständlich könnten mit auch andere Substrate wie Leisten, Verpackungsmaterial oder dgl. mit Klebstoff flächig beschichtet werden.The application device 2 and guide device 3 shown in the figures serve to apply adhesive to a strip material movable relative to the application device 2, in particular for gluing so-called edge covers for furniture (furniture coverings), which are e.g. Made of a flat, flexible plastic material and glued to the outer surfaces of furniture or furniture parts. Of course, with other substrates such as strips, packaging material or the like. Be coated with adhesive surface.

Wie insbesondere die Figuren 1 bis 4 zeigen, weist ein Auftragskopf 2 einen Grundkörper 4 mit einem in diesem Grundkörper 4 ausgebildeten Klebstoffkanal auf (nicht dargestellt). Mittels einer Tragstange 6 wird der Auftragskopf 2 ortsfest montiert und positioniert. Die Tragstange 6 ist am unteren Ende mit einem Befestigungsflansch 8 mit Bohrungen 10 versehen, um an einer ortsfesten Struktur angeschraubt zu werden. Der Auftragskopf 2 ist mittels einer Klemmeinrichtung 12 stufenlos in unterschiedlichen Stellungen an der Tragstange 6 befestigbar. Hierzu wird eine Spannschraube mittels eines Griffs 14 derart manuell verspannt, dass eine reibschlüssige Klemm-Verbindung zwischen Spanneinrichtung 12 und Tragstange 6 entsteht, die zum Verstellen lösbar ist.As shown in particular in FIGS. 1 to 4, an application head 2 has a main body 4 with an adhesive channel formed in this main body 4 (not shown). By means of a support rod 6, the applicator head 2 is mounted and positioned stationary. The support rod 6 is provided at the lower end with a mounting flange 8 with holes 10 to be screwed to a stationary structure. The application head 2 can be fastened steplessly in different positions on the support rod 6 by means of a clamping device 12. For this purpose, a clamping screw is manually clamped by means of a handle 14 such that a frictional clamping connection between clamping device 12 and support rod 6 is formed, which is releasable for adjustment.

An einem - in Figur 1 unteren - Abschnitt des Auftragskopfes 2 ist eine Düsenanordnung, die als Schlitzdüse 16 ausgebildet ist, an den Grundkörper 4 angeschraubt, so dass Klebstoff durch den Klebstoffkanal in die Schlitzdüse 16 einströmen kann und durch einen Schlitz mit einer länglichen, schlitzartigen Austrittsöffnung 18 abgegeben werden kann. Im Betrieb gleitet das zu beleimende Bandmaterial an einem Gleitblech 19 in Richtung des Pfeils 21 (Fig. 1), der die Relativbewegungsrichtung veranschaulicht.At a - in Figure 1 bottom - section of the applicator head 2 is a nozzle assembly which is formed as a slot 16, screwed to the base body 4 so that adhesive can flow through the adhesive channel in the slot 16 and through a slot with an elongated, slot-like Outlet opening 18 can be discharged. In operation, the strip material to be glued slides on a sliding plate 19 in the direction of the arrow 21 (FIG. 1), which illustrates the direction of relative movement.

In dem Auftragskopf 2 ist ein Auftragsventil (nicht dargestellt) zum wahlweisen Unterbrechen bzw. Freigeben des Klebstoffstroms in den Klebstoffkanal und somit durch die Austrittsöffnung 18 angeordnet. Das Auftragsventil ist pneumatisch betätigbar. Beispielsweise kann es sich um ein Nadelventil handeln, bei der eine Nadel mit einem Ventilsitz kooperiert.In the application head 2, an order valve (not shown) for selectively interrupting or releasing the adhesive flow into the adhesive channel and thus through the outlet opening 18 is arranged. The order valve is pneumatically actuated. For example, it may be a needle valve in which a needle cooperates with a valve seat.

Ein Verschlusskörper (nicht dargestellt) ist in dem Schlitz der Schlitzdüse 16 bewegbar angeordnet und dichtet den Schlitz seitlich ab. Der Verschlusskörper ist starr mit einem zylindrischen Kolben gekoppelt, der axial beweglich innerhalb des eines Verteilerkanals angeordnet ist. Der Verschlusskörper erstreckt sich von dem Kolben bis zur Austrittsöffnung 18 der Schlitzdüse 16. Durch Verschiebung des Verschlusskörpers in dem Schlitz zusammen mit dem in einem Verteilerkanal angeordneten Kolben kann die Länge des Schlitzes und somit die Länge der Austrittsöffnung 18 variiert werden.A closure body (not shown) is movably disposed in the slot of the slot nozzle 16 and seals the slot laterally. The closure body is rigidly coupled to a cylindrical piston axially movably disposed within a manifold. The closure body extends from the piston to the outlet opening 18 of the slot nozzle 16. By displacement of the closure body in the slot together with the piston arranged in a distributor channel, the length of the slot and thus the length of the outlet opening 18 can be varied.

Durch Drehen eines Handrades 20, welches mit einer Gewindestange 24 gekoppelt ist, lässt sich die Breite des Schlitzes und somit der Austrittsöffnung 18 auf die zuvor beschriebene Weise variieren. Durch Positionierung des gesamten Auftragskopfes 2 und somit der Schlitzdüse 16 lässt sich exakt die gewünschte Position des Schlitzes und der Austrittsöffnung 18 einstellen.By turning a hand wheel 20, which is coupled to a threaded rod 24, the width of the slot and thus the outlet opening 18 can be varied in the manner described above. By positioning the entire applicator head 2 and thus the slot nozzle 16 can be exactly set the desired position of the slot and the outlet opening 18.

Die in Figur 2, 5 und 6 separat dargestellte Führungseinrichtung 3 ist direkt an den Auftragskopf 2, genauer gesagt den Grundkörper 2 des Auftragskopfes montiert mittels eines Drehgelenkes 26, so dass die Führungseinrichtung 3 um eine Drehachse 28 verschwenkbar relativ zu dem Auftragskopf 2 gelagert ist. Das Drehgelenk 26 weist einen Bolzen 30 auf, der in einer Ausnehmung des Grundkörpers 2 angeordnet ist, sowie eine Befestigungsmutter 31.The guide device 3 shown separately in Figures 2, 5 and 6 is mounted directly to the applicator head 2, more precisely, the base body 2 of the applicator head by means of a rotary joint 26, so that the guide means 3 is mounted pivotably about an axis of rotation 28 relative to the applicator head 2. The rotary joint 26 has a bolt 30, which is arranged in a recess of the base body 2, and a fastening nut 31st

Die Führungseinrichtung 3 dient zum definierten Vorbeiführen des Bandmaterials an der Austrittsöffnung 18 der Schlitzdüse 16. Das Bandmaterial wird zunächst durch einen Schlitz 32 eingeführt, der zwischen zwei beabstandeten Platten 34, 36 ausgebildet ist, welche mittels eines Verbindungssteges 33 miteinander verbunden sind. Das Bandmaterial wird mithilfe nicht dargestellter Fördermittel durch den Schlitz 32 hindurch bewegt und dabei geführt. Alternativ könnte auch nur eine Platte als Führung für das Bandmaterial im Einlaufbereich vorgesehen sein.The guide means 3 serves for defined passage of the strip material at the outlet opening 18 of the slot nozzle 16. The strip material is first introduced through a slot 32 which is formed between two spaced plates 34, 36, which are interconnected by means of a connecting web 33. The band material is using unillustrated funding through the Slit 32 is moved through and guided. Alternatively, only one plate could be provided as a guide for the strip material in the inlet region.

Die Führungseinrichtung 3 weist ein erstes Führungselement 38 auf, welches als starrer, außen polierter Zylinderbolzen ausgebildet ist und im Wesentlichen parallel zu der Austrittsöffnung 18 verläuft. Im Betrieb ist das erste Führungselement 38 in seiner Arbeitsstellung in einem definierten, einstellbaren Abstand zu der Austrittsöffnung des Schlitzdüse (vergleiche Fig. 3) und in Kontakt mit einer Oberfläche des Bandmaterials, welche der zu beleimenden Oberfläche des Bandmaterials gegenüber liegt. Das Führungselement 38 ist in eine Aufnahme 40 eingeführt und kann durch Lösen einer Schraube 42 entfernt oder ausgetauscht werden, so daß es einfach gereinigt werden kann.The guide device 3 has a first guide element 38, which is designed as a rigid, externally polished cylinder pin and extends substantially parallel to the outlet opening 18. In operation, the first guide element 38 is in its operative position at a defined, adjustable distance from the outlet opening of the slot nozzle (see FIG. 3) and in contact with a surface of the strip material which faces the surface of the strip material to be glued. The guide member 38 is inserted into a receptacle 40 and can be removed or replaced by loosening a screw 42 so that it can be easily cleaned.

Zwei an einem Träger 44 (siehe Figur 3) befestigte weitere Kanten-Führungselemente 46, 48 sorgen im Betrieb dafür, dass das Bandmaterial seitlich, im Ausführungsbeispiel nach oben und unten, geführt wird, in dem die weiteren Kanten-Führungselemente 46, 48 in Kontakt mit gegenüberliegenden Kanten oder Rändern des Bandmaterials kommen. Der Träger 44 ist als Stange ausgebildet. Mithilfe von Schrauben 50 lässt sich der Abstand der Führungselemente 46, 48 zueinander dadurch variieren, dass die Kanten-Führungselemente 46 ,48 an den Träger 44 nach Lösen der Schraube 50 verschoben und anschließend durch Festziehen der Schrauben 50 fixiert werden. Es ist somit eine Anpassung an unterschiedlich breite Bandmaterialien auf konstruktiv einfache Weise vorgesehen. Durch die Führung des Führungselementes 38 und zusätzlich der Kanten-Führungselemente 46, 48 ist das zu beleimende Bandmaterial sicher so geführt, dass eine gleichmäßige flächige Beleimung erfolgt.Two further edge guide elements 46, 48 fastened to a support 44 (see FIG. 3) ensure that the strip material is guided laterally, in the exemplary embodiment upwards and downwards, in which the further edge guide elements 46, 48 come into contact come with opposite edges or edges of the strip material. The carrier 44 is formed as a rod. By means of screws 50, the spacing of the guide elements 46, 48 from each other can vary in that the edge guide elements 46, 48 are moved to the support 44 after loosening the screw 50 and then fixed by tightening the screws 50. It is thus provided an adaptation to different width strip materials in a structurally simple manner. Due to the guidance of the guide element 38 and in addition the edge guide elements 46, 48, the band material to be glued is securely guided so that a uniform surface gluing takes place.

Mit Hilfe einer Verstellschraube 52 lässt sich der Träger 44 zur Einstellung eines sogenannten Fertigungsnullpunktes vertikal verfahren.With the aid of an adjusting screw 52, the carrier 44 can be moved vertically to set a so-called manufacturing zero point.

Die Führungseinrichtung ist mit Hilfe eines Pneumatikzylinders 58 um die Drehachse 28 des Drehlagers 26 verschwenkbar. Ein Schwenkträger 54 nimmt die Aufnahme 40 und somit das erste Führungselement 38 als auch die weiteren Kanten-Führungselemente 46,48 zusammen mit dem Träger 46 auf. Der Pneumatikzylinder 58 ist durch eine Druckluftleitung 60 mit Druckgas derart beaufschlagbar, dass der Träger 54 durch eine Kolbenstange 62 von dem Auftragskopf 2 und dem Grundkörper 4 in eine gewünschte Arbeitsstellung geschwenkt wird, so daß das Führungselement 38 in einem gewünschten Abstand zu der Austrittsöffnung 18 liegt.The guide device is pivotable about the axis of rotation 28 of the pivot bearing 26 with the aid of a pneumatic cylinder 58. A pivot support 54 takes the receptacle 40 and thus the first guide member 38 and the other edge guide elements 46,48 together with the carrier 46. The pneumatic cylinder 58 is acted upon by a compressed air line 60 with compressed gas such that the carrier 54 is pivoted by a piston rod 62 of the applicator head 2 and the base body 4 in a desired working position, so that the guide element 38 is at a desired distance to the outlet opening 18 ,

Bei Ablassen der Druckluft schwenkt der Träger 54 aufgrund einer in dem Pneumatikzylinder 58 integrierten Feder in eine Ruhestellung, in der das Führungselement 38 einen größeren Abstand von der Austrittsöffnung 18 hat und das Bandmaterial nicht mehr zum Leimauftrag an der Austrittsöffnung vorbei geführt wird. Die Feder ist eine somit eine Vorspanneinrichtung zum Vorspannen der verschwenkbaren Führungseinrichtung 3 und des Führungselementes 38 in eine Ruhestellung, in der das Führungselement 3 beabstandet von der Schlitzdüse 16 angeordnet ist.Upon release of the compressed air, the carrier 54 pivots due to a spring integrated in the pneumatic cylinder 58 in a rest position in which the guide member 38 has a greater distance from the outlet opening 18 and the strip material is no longer led to the glue application at the outlet. The spring is thus a biasing means for biasing the pivotable guide means 3 and the guide member 38 in a rest position in which the guide member 3 is spaced from the slot nozzle 16 is arranged.

Claims (11)

  1. Apparatus for the flat application of free-flowing adhesive to a strip material movable relative to the apparatus, in particular to an edge strip for furniture, comprising an adhesive channel formed in an application head (2), an application valve for selectively interrupting or releasing the adhesive flow into the adhesive channel, and a slot nozzle (16) communicating with the adhesive channel and having a slot and an elongate, slot-like discharge aperture (18) for discharging adhesive on to the strip material, characterised in that a guide device (3) for guiding the strip material past the discharge aperture (18) of the slot nozzle (16) along a specified path of motion may be fixed detachably to the application head (2), in that the guide device (3) has a first guide element (38), which comes into contact in operation with a surface of the strip material opposite the surface to be glued, and at least one further guide element (46, 48), which in operation comes into contact with an edge of the strip material.
  2. Apparatus according to claim 1, characterised in that the guide device (3) is mounted pivotably on the application head (2) by means of a hinge (26).
  3. Apparatus according to claim 2, characterised in that the guide device (3) is mounted pivotably by means of a pneumatic cylinder (58) and the first guide element (38) is disposed at a distance from the hinge (26) in such a manner that when the guide device (3) is pivoted, the distance of the first guide element (38) from the discharge aperture (18) of the slot nozzle (16) is varied.
  4. Apparatus according to claim 2 or 3, characterised by a biasing device for biasing the guide device (3) and/or the guide element (38) in a rest position, in which the guide element (38) is disposed at a distance from the slot nozzle (16).
  5. Apparatus according to claim 4, characterised in that the biasing device takes the form of a spring.
  6. Apparatus according to one of the preceding claims, characterised in that the first guide element (38) is formed as a cylindrical pin and is disposed substantially parallel to the discharge aperture (18).
  7. Apparatus according to one of the preceding claims, characterised in that two further edge guide elements (46, 48) are fixable at different distances from one another on a support (44).
  8. Apparatus according to claim 7, characterised in that the support (44) is mounted together with the edge guide elements (46, 48) adjustably and fixably on the guide device (3).
  9. Apparatus according to one of the preceding claims, characterised in that the guide device (3) has a guide slot (32) which is formed by spaced plates (34, 36) and through which the strip material to be glued is passed.
  10. Apparatus according to at least one of the preceding claims, characterised in that the length of the slot is variable and the application head (2) is mounted slidably and fixably.
  11. Guide device for guiding a strip material past a discharge aperture of a slot nozzle (16) along a specified path of motion, in particular for detachably fixing to an apparatus according to one of the preceding claims, characterised in that the guide device (3) has a first guide element (38), which in operation comes into contact with a surface of the strip material opposite the surface to be glued, and has at least one further guide element (46, 48), which in operation comes into contact with an edge of the strip material.
EP01122738A 2000-10-16 2001-09-21 Device for applying flowable adhesive onto a strip material moving relative to the device, particularly onto an edge rim for furniture Expired - Lifetime EP1205257B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10051201A DE10051201A1 (en) 2000-10-16 2000-10-16 Device for flat application of free flowing adhesive to relatively movable band has guiding device detachably fastened to applicator head for guiding band material at adhesive outlet along defined movement path
DE10051201 2000-10-16

Publications (3)

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EP1205257A2 EP1205257A2 (en) 2002-05-15
EP1205257A3 EP1205257A3 (en) 2004-12-15
EP1205257B1 true EP1205257B1 (en) 2006-04-05

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US (1) US6802904B2 (en)
EP (1) EP1205257B1 (en)
JP (1) JP2002153798A (en)
AT (1) ATE322347T1 (en)
DE (2) DE10051201A1 (en)
ES (1) ES2258052T3 (en)

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IT1396969B1 (en) * 2009-12-18 2012-12-20 Scm Group Spa GLUING METHOD
ITBO20130084A1 (en) * 2013-02-28 2014-08-29 Biesse Spa MACHINE FOR EDGING WOODEN PANELS OR THE LIKE
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ES2258052T3 (en) 2006-08-16
US6802904B2 (en) 2004-10-12
US20020152957A1 (en) 2002-10-24
JP2002153798A (en) 2002-05-28
EP1205257A3 (en) 2004-12-15
DE10051201A1 (en) 2002-04-25
DE50109421D1 (en) 2006-05-18
EP1205257A2 (en) 2002-05-15
ATE322347T1 (en) 2006-04-15

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