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EP2300204B1 - Method and device for inserting tongues into a groove - Google Patents

Method and device for inserting tongues into a groove Download PDF

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Publication number
EP2300204B1
EP2300204B1 EP09772922A EP09772922A EP2300204B1 EP 2300204 B1 EP2300204 B1 EP 2300204B1 EP 09772922 A EP09772922 A EP 09772922A EP 09772922 A EP09772922 A EP 09772922A EP 2300204 B1 EP2300204 B1 EP 2300204B1
Authority
EP
European Patent Office
Prior art keywords
springs
belt
supply belt
groove
supply
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.)
Not-in-force
Application number
EP09772922A
Other languages
German (de)
French (fr)
Other versions
EP2300204B8 (en
EP2300204A2 (en
Inventor
Guido Schulte
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PL09772922T priority Critical patent/PL2300204T3/en
Publication of EP2300204A2 publication Critical patent/EP2300204A2/en
Application granted granted Critical
Publication of EP2300204B1 publication Critical patent/EP2300204B1/en
Publication of EP2300204B8 publication Critical patent/EP2300204B8/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/0066—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by tongue and groove or tap hole connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02038—Flooring or floor layers composed of a number of similar elements characterised by tongue and groove connections between neighbouring flooring elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0138—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0153—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/05—Separate connectors or inserts, e.g. pegs, pins, keys or strips
    • E04F2201/0523—Separate tongues; Interlocking keys, e.g. joining mouldings of circular, square or rectangular shape
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/05—Separate connectors or inserts, e.g. pegs, pins, keys or strips
    • E04F2201/0523—Separate tongues; Interlocking keys, e.g. joining mouldings of circular, square or rectangular shape
    • E04F2201/0541—Separate tongues; Interlocking keys, e.g. joining mouldings of circular, square or rectangular shape adapted to be moved along the joint edge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts
    • Y10T29/49872—Confining elastic part in socket
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
    • Y10T29/49901—Sequentially associating parts on stationary aligning means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53613—Spring applier or remover

Definitions

  • the invention relates to a method for inserting a spring in a longitudinal or head-side groove of element plates and a device for carrying out the method.
  • WO2008 / 017301 A2 include prior art floor coverings which consist of a plurality of composite element panels having on their top sides and in their longitudinal sides locking strips which engage with each other in the mounting position with adjacent in a covering element plates.
  • grooves are provided in the top sides, wherein the grooves of two abutting head sides correspond and form a locking channel for receiving a head spring.
  • the head spring is preassembled in the groove and protrudes beyond one of the longitudinal side of the element plate facing the end of the groove.
  • the head spring is completely inside the preassembled state the groove chambered and can be moved by moving the protruding end of the head spring into the groove, at least partially from one groove into the corresponding groove of the adjacent element plate.
  • the separation of the springs requires a special separation unit in order to carefully remove the connecting pieces, by way of which two adjoining springs are connected to one another. Since such springs are a mass component, where the springs are to be connected to the element plates, a relatively large amount of plastic waste falls through the connection pieces. This waste must be disposed of or reused. Since it is a mass product, a rapid supply of the springs is sought, which makes their provision in relatively large quantities necessary. Although it is possible to separate the springs separately and then align, for example via a vibrating device so that a storage magazine can be filled, but it can easily cause interference in these small-volume components. It would be advantageous if the springs before insertion into the groove have a defined position, can be provided in large quantities, and without a complex separation of interconnected springs is necessary.
  • the prior art is still a method and a device for introducing a spring of a plate-forming strip according to the DE 10 2004 005 047 B3 to point.
  • the plate and a locking member are transported at the same speed to each other in parallel along a transport path in a transporting direction.
  • the locking element runs laterally against a stationary device which steadily narrows the transport path in the transport direction.
  • the locking element is steadily increasingly displaced transversely to the transport direction by means of this device until it is pressed steadily increasing in its beginning with respect to the transport direction front end in the groove of the plate.
  • the EP 1674233 A1 a device for inserting springs in the front and / or long sides of technical wood products is described in which a supply of springs for a transfer arrangement is carried out in order to then use these with a Einpressaggregat in the wood products.
  • the springs can be cut from a storage immediately before or in the transfer device to the desired length and fed to a transversely movable to the conveying direction of the technical wood products Einpressaggregat.
  • the US 2008/041008 A1 discloses a method for inserting a spring into a longitudinal or head side groove of composite layable element plates, wherein the element plates are lockable by displacing the spring relative to the element plates.
  • the springs are provided in a strip blank containing at least two substantially identical springs.
  • the springs are brought into engagement with the floorboards to be joined together and separated from the so-called strip blank.
  • strip blanks which can also be referred to as mats, connected by a hot melt adhesive.
  • the mats joined together are rolled up so that a rolled-up magazine of feathers is provided.
  • the invention is based on the object to show a device for inserting springs in a groove, which overcomes the disadvantages described above or solves in an advantageous manner.
  • a method for inserting springs in grooves is the subject of claim 1.
  • An apparatus for performing the method is the subject of claim 10.
  • the inventive method for inserting a spring into a longitudinal or head-side groove of composite layable elements provides the provision of springs on a feed belt, wherein the springs are releasably connected to the feed belt. Before the springs can be inserted into the groove, they should be detached from the feed belt and then be displaced by an insertion unit in the groove of a provided element plate.
  • the springs are arranged on a feed belt, so that the springs are not directly materially connected to each other, but are coupled together only via the feed belt. On the conveyor belt, the springs are at a predetermined distance from each other.
  • the use of the feed belt has the advantage that the springs can be positioned very accurately on very long feed belts, which are provided, for example, in the form of wound coils, so that the springs, which have already been separated in advance, are fed quickly and precisely to an introduction unit can be. It falls to the device for introducing the springs no small-volume plastic waste. A processing of the springs by removing connectors deleted.
  • the used feed belt can be reused.
  • a feed belt is in particular a belt made of a plastic material.
  • the springs can be connected to the feed belt over the entire surface or even only partially / at certain points. It depends ultimately on the transport sufficiently secure fixing but also on the easy detachability of the spring from the feed belt.
  • the releasable connection of the springs can be done by full-area or selective bonding, the used Adhesive allows a detachment of the springs from the feed belt.
  • the feed belt can be flat.
  • the feed belt can also be contoured, that is not flat. The contouring is formed by elevations and depressions, which are adapted in their arrangement and shape to the geometry of the springs.
  • the springs may be made of wood, metal, plastic, or composite materials such as e.g. Wood-plastic mixtures or fiber composites exist. Depending on the base material and geometry, the springs may be injection molded or extruded or manufactured. In the case of sheet-like base materials, out-profiling or punching is possible. It can thus be e.g. to punched or molded parts act.
  • the springs can be rigid or elastic. They can be formed in one or more parts.
  • the feed belt may be perforated or have registration marks to allow proper guidance, similar to a timing belt.
  • the springs are transferred to a transport rail, via which they reach the insertion unit, with which the springs are finally introduced into the grooves.
  • the transport rail replaced as a support for the springs, so to speak, the feed belt and therefore has the same orientation as the feed belt.
  • the feed belt Via a groove in the transport rail, the feed belt can be deflected be, with the springs slide over the groove away and be transported in the direction of the insertion.
  • the transport of the springs can either be done by pulling the Zu211bands or by a belt conveyor, which summarizes the springs and this moves in the direction of the transport rail. Under a belt conveyor is to understand a positive or frictional envelope, the driver engage with the springs and transport them.
  • This flat belt drive is provided with a drive unit, via which the springs are moved forward in the transport direction and reach the insertion unit.
  • the drivers are preferably arranged so that they not only on, but between adjacent springs summarize, which are arranged for this purpose at a predetermined distance from each other. In this way, it is ensured that between two consecutive drivers each have a spring is arranged, which is fed by the belt conveyor with a defined speed of the insertion.
  • the feed belt can be pulled, especially when it is being wound up. It is necessary to pull the feed belt at a speed synchronized with the speed of the belt conveyor.
  • the inventive device of the method provides means for providing an element plate to be provided with a spring and a storage unit for receiving the spring-bonded feed belt.
  • This storage unit is in particular a magazine storage with several coils.
  • the feed belt is placed in loops and is supplied in this form of the device according to the invention.
  • the device further comprises a belt conveyor which is in contact with the springs arranged detachably on the conveyor belt and in particular grips them in a form-fitting manner.
  • a slide rail for further transport of detached from the feed belt springs is required as well as an insertion unit, by means of which the springs in a groove of the element plates can be used.
  • the whole arrangement operates at high speed, so that corresponding electrical drives and control means with the necessary actuators and sensors are required. It is an automated process, with which springs of different design can be used in appropriately trained grooves.
  • the springs are in particular head feathers in the sense of WO 2008/017301 A2 that is, they can be displaced by sloping surfaces, bends or kinks from one groove into an adjacent groove, wherein the springs are frictionally held within the grooves into which they have been inserted prior to joining two element plates.
  • These are, in particular, springs which protrude beyond a longitudinal side of the element plate and, by displacing the protruding or protruding end back into the groove, are partially displaceable from one groove into the corresponding groove of the adjacent element plate.
  • This device 1 is used for processing of springs 3, which are detachably connected to a feed belt 6, in particular connected thereto by gluing.
  • the springs 3 are released from the feed belt 6. After detachment of the springs 3, the feed belt 6 is wound up and can be re-equipped with springs 3.
  • the springs 3 are fixed at a constant distance on the feed belt 6 and are transported within the device in the image plane from right to left.
  • the drivers 9 are arranged at the same distance, as the springs 3 on the feed belt 6, so that always a driver 9 between two springs 3 sums up.
  • the lower run 10 of the conveyor belt 8 extends on the side facing away from the feed belt 6 of the springs 3.
  • Approximately in the middle of the lower run 10 is a guide roller 11, followed by a groove 12, through which the feed belt 6 is pulled down and wound.
  • the lower run 10 of the belt conveyor 7 is in positive engagement with the springs 3, so that they are transported over the guide roller 11 and the groove 12 away on a transport rail 13, which leads to an insertion unit 14.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Automatic Assembly (AREA)
  • Belt Conveyors (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Making Paper Articles (AREA)

Abstract

The invention relates to a method for inserting a spring (3) into a longitudinal-side or head-side groove (4) of element panels (5) which can be laid in combination, wherein the element panels (5) can be locked together by means of a movement of the spring (3) relative to the element panels (5), having the following steps: a) providing springs (3) on a supply belt (6), wherein the springs (3) are releasably connected to the supply belt (6); b) detaching the springs (3) from the supply belt (6); c) moving the springs (3) into the groove (4) of a provided element panel (5).

Description

Die Erfindung betrifft ein Verfahren zum Einsetzen einer Feder in eine längsoder kopfseitige Nut von Elementplatten sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for inserting a spring in a longitudinal or head-side groove of element plates and a device for carrying out the method.

Durch die WO2008/017301 A2 zählen Fußbodenbeläge zum Stand der Technik die aus einer Vielzahl von im Verbund verlegten Elementplatten bestehen, die an ihren Kopfseiten und in ihren Längsseiten Verriegelungsleisten besitzen, welche in der Montagelage bei in einem Belag benachbarten Elementplatten miteinander in Eingriff gelangen. Hierbei sind in den Kopfseiten Nuten vorgesehen, wobei die Nuten zweier aneinander stoßender Kopfseiten korrespondieren und einen Sperrkanal zur Aufnahme einer Kopffeder ausbilden. Die Kopffeder ist in der Nut vormontiert und steht über ein der Längsseite der Elementplatte zugewandtes Ende der Nut vor. Gleichzeitig ist die Kopffeder im vormontierten Zustand vollständig innerhalb der Nut gekammert und kann durch Verschieben des überstehenden Endes des Kopffeder in die Nut hinein, zumindest teilweise von der einen Nut in die korrespondierende Nut der benachbarten Elementplatte verlagert werden. Der wesentliche Vorteil eines solchen aus Elementplatten zusammengesetzten Fußbodenbelags ist, dass das nachträgliche Einschlagen oder Einschieben der Kopffedern in den Sperrkanal entfällt. Dieser Vorgang des Einschiebens wird daher werksseitig vorgenommen. In diesem Zusammenhang ist durch die WO 2006/043893 A1 bekannt geworden, Federn von einer zusammenhängenden Federanordnung abzutrennen und werksseitig mittels einer Einschiebevorrichtung in die Nut einzusetzen. Die Federanordnungen werden mattenartig im Spritzgussverfahren hergestellt und in einer Vereinzelungseinheit separiert. Diese vereinzelten Federn sollen dann im Wesentlichen parallel zu ihrer Längs- oder Quererstreckung verlagert werden und in die Nut eingeschoben werden, wo sie durch Reibkräfte gehalten werden, allerdings derart angeordnet sind, dass sie um ihre Längsachse biegbar sind und damit innerhalb der Verlegebene federnd verlagerbar sind.By the WO2008 / 017301 A2 include prior art floor coverings which consist of a plurality of composite element panels having on their top sides and in their longitudinal sides locking strips which engage with each other in the mounting position with adjacent in a covering element plates. Here, grooves are provided in the top sides, wherein the grooves of two abutting head sides correspond and form a locking channel for receiving a head spring. The head spring is preassembled in the groove and protrudes beyond one of the longitudinal side of the element plate facing the end of the groove. At the same time, the head spring is completely inside the preassembled state the groove chambered and can be moved by moving the protruding end of the head spring into the groove, at least partially from one groove into the corresponding groove of the adjacent element plate. The main advantage of such a composite of element panels floor covering is that the subsequent insertion or insertion of the head feathers is omitted in the locking channel. This process of insertion is therefore made at the factory. In this context is through the WO 2006/043893 A1 It has become known to separate springs from a coherent spring arrangement and to insert them into the groove at the factory by means of a push-in device. The spring arrangements are produced in a mat-like manner by injection molding and separated in a separating unit. These isolated springs should then be displaced substantially parallel to their longitudinal or transverse extension and inserted into the groove, where they are held by frictional forces, but arranged such that they are bendable about their longitudinal axis and thus resiliently displaceable within the laying level ,

Das Vereinzeln der Federn setzt eine spezielle Vereinzelungseinheit voraus, um die Verbindungsstücke, über welche zwei einander benachbarte Federn miteinander verbunden sind, sorgfältig zu entfernen. Da es sich bei derartigen Federn um ein Massenbauteil handelt, fällt dort, wo die Federn mit den Elementplatten verbunden werden sollen, relativ viel Kunststoffabfall durch die Verbindungsstücke an. Diese Abfälle müssen entsorgt oder einer Wiederverwendung zugeführt werden. Da es sich um ein Massenprodukt handelt wird eine rasche Zuführung der Federn angestrebt, was deren Bereitstellung in relativ großen Mengen notwendig macht. Zwar ist es möglich die Federn separat zu vereinzeln und dann beispielsweise über eine Rüttelvorrichtung so auszurichten, dass ein Vorratsmagazin gefüllt werden kann, jedoch kann es bei diesen kleinvolumigen Bauteilen leicht zu Störungen kommen. Von Vorteil wäre es, wenn die Federn vor dem Einführen in die Nut eine definierte Lage besitzen, in großen Mengen bereitgestellt werden können, und zwar ohne dass eine aufwändige Vereinzelung von miteinander verbundenen Federn notwendig ist.The separation of the springs requires a special separation unit in order to carefully remove the connecting pieces, by way of which two adjoining springs are connected to one another. Since such springs are a mass component, where the springs are to be connected to the element plates, a relatively large amount of plastic waste falls through the connection pieces. This waste must be disposed of or reused. Since it is a mass product, a rapid supply of the springs is sought, which makes their provision in relatively large quantities necessary. Although it is possible to separate the springs separately and then align, for example via a vibrating device so that a storage magazine can be filled, but it can easily cause interference in these small-volume components. It would be advantageous if the springs before insertion into the groove have a defined position, can be provided in large quantities, and without a complex separation of interconnected springs is necessary.

Zum Stand der Technik ist noch auf ein Verfahren und eine Einrichtung zum Einbringen eines die Feder einer Platte bildenden Streifens gemäß der DE 10 2004 005 047 B3 hinzuweisen. Bei diesem Verfahren werden die Platte und ein Verriegelungselement mit derselben Geschwindigkeit zueinander parallel entlang einer Transportstrecke in eine Transportrichtung transportiert. Das Verriegelungselement läuft während des Transports seitlich an einer die Transportstrecke in Transportrichtung sich stetig verengenden ortsfesten Einrichtungen an. Das Verriegelungselement wird mittels dieser Einrichtung stetig zunehmend quer zur Transportrichtung verlagert, bis es dabei mit seinem in Bezug auf die Transportrichtung vorderen Ende beginnend stetig zunehmend in die Nut der Platte eingedrückt wird.The prior art is still a method and a device for introducing a spring of a plate-forming strip according to the DE 10 2004 005 047 B3 to point. In this method, the plate and a locking member are transported at the same speed to each other in parallel along a transport path in a transporting direction. During the transport, the locking element runs laterally against a stationary device which steadily narrows the transport path in the transport direction. The locking element is steadily increasingly displaced transversely to the transport direction by means of this device until it is pressed steadily increasing in its beginning with respect to the transport direction front end in the groove of the plate.

In der EP 1674233 A1 wird eine Vorrichtung zum Einsetzen von Federn in die Stirn- und/oder Längsseiten technischer Holzprodukte beschrieben, bei welchem eine Bevorratung von Federn für eine Übergabeanordnung erfolgt, um diese anschließend mit einem Einpressaggregat in die Holzprodukte einzusetzen. Beispielsweise können die Federn von einer Bevorratung kommend unmittelbar vor oder in der Übergabevorrichtung auf die gewünschte Länge geschnitten werden und einem quer zur Förderrichtung der technischen Holzprodukte verfahrbaren Einpressaggregat zugeführt werden.In the EP 1674233 A1 a device for inserting springs in the front and / or long sides of technical wood products is described in which a supply of springs for a transfer arrangement is carried out in order to then use these with a Einpressaggregat in the wood products. For example, the springs can be cut from a storage immediately before or in the transfer device to the desired length and fed to a transversely movable to the conveying direction of the technical wood products Einpressaggregat.

Die US 2008/041008 A1 offenbart ein Verfahren zum Einsetzen einer Feder in eine längs- oder kopfseitige Nut von im Verbund verlegbaren Elementplatten, wobei die Elementplatten durch Verlagern der Feder relativ zu den Elementplatten miteinander verriegelbar sind. Die Federn werden in einem Streifenrohling bereit gestellt, der wenigstens zwei im Wesentlichen identische Federn enthält. Die Federn werden mit den miteinander zu verbindenden Fußbodenplatten in Eingriff gebracht und von dem so genannten Streifenrohling getrennt. Im Rahmen der Bereitstellung werden mehrere Streifenrohlinge, die auch als Matten bezeichnet werden können, über einen Heißkleber miteinander verbunden. Die miteinander verbundenen Matten werden aufgerollt, so dass ein aufgerolltes Magazin von Federn bereitgestellt wird.The US 2008/041008 A1 discloses a method for inserting a spring into a longitudinal or head side groove of composite layable element plates, wherein the element plates are lockable by displacing the spring relative to the element plates. The springs are provided in a strip blank containing at least two substantially identical springs. The springs are brought into engagement with the floorboards to be joined together and separated from the so-called strip blank. As part of the provision of several strip blanks, which can also be referred to as mats, connected by a hot melt adhesive. The mats joined together are rolled up so that a rolled-up magazine of feathers is provided.

Der Erfindung liegt die Aufgabe zu Grunde eine Vorrichtung zum Einsetzen von Federn in eine Nut aufzuzeigen, welches die vorbeschriebenen Nachteile überwindet bzw. in vorteilhafter Weise löst.The invention is based on the object to show a device for inserting springs in a groove, which overcomes the disadvantages described above or solves in an advantageous manner.

Ein Verfahren zum Einsetzen von Federn in Nuten ist Gegenstand des Patentanspruchs 1. Eine Vorrichtung zur Durchführung des Verfahrens ist Gegenstand des Patentanspruchs 10.A method for inserting springs in grooves is the subject of claim 1. An apparatus for performing the method is the subject of claim 10.

Vorteilhafte Weiterbildungen des Erfindungsgedankens sind Gegendstand der jeweils abhängigen Unteransprüche.Advantageous developments of the inventive concept are the state of the respective dependent claims.

Das erfindungsgemäße Verfahren zum Einsetzen einer Feder in eine längsoder kopfsseitige Nut von im Verbund verlegbaren Elementen sieht das Bereitstellen von Federn auf einem Zuführband vor, wobei die Federn mit dem Zuführband lösbar verbunden sind. Bevor die Federn in die Nut eingeführt werden können, sollen diese vom Zuführband abgelöst werden und anschließend von einer Einführeinheit in die Nut einer bereitgestellten Elementplatte verlagert werden.The inventive method for inserting a spring into a longitudinal or head-side groove of composite layable elements provides the provision of springs on a feed belt, wherein the springs are releasably connected to the feed belt. Before the springs can be inserted into the groove, they should be detached from the feed belt and then be displaced by an insertion unit in the groove of a provided element plate.

Die Federn sind auf einem Zuführband angeordnet, so dass die Federn nicht unmittelbar stoffschlüssig miteinander verbunden sind, sondern nur über das Zuführband miteinander gekoppelt sind. Auf dem Zuführband befinden sich die Federn in einem vorgegebenen Abstand zueinander. Die Verwendung des Zuführbands hat den Vorteil, dass die Federn in großer Stückzahl auf sehr langen Zuführbändern, die beispielsweise in Form von aufgewickelten Coils bereit gestellt werden, sehr exakt positioniert werden können, so dass die bereits im Vorfeld vereinzelten Federn rasch und präzise einer Einführeinheit zugeführt werden können. Es fällt an der Vorrichtung zum Einführen der Federn kein kleinvolumiger Kunststoffmüll an. Eine Bearbeitung der Federn durch Abtrennen von Verbindungsstücken entfällt. Das verwendete Zuführband kann wieder verwendet werden.The springs are arranged on a feed belt, so that the springs are not directly materially connected to each other, but are coupled together only via the feed belt. On the conveyor belt, the springs are at a predetermined distance from each other. The use of the feed belt has the advantage that the springs can be positioned very accurately on very long feed belts, which are provided, for example, in the form of wound coils, so that the springs, which have already been separated in advance, are fed quickly and precisely to an introduction unit can be. It falls to the device for introducing the springs no small-volume plastic waste. A processing of the springs by removing connectors deleted. The used feed belt can be reused.

Im Sinne der Erfindung ist ein Zuführband insbesondere ein aus einem Kunststoffwerkstoff hergestelltes Band. Grundsätzlich ist es möglich, mehrere parallel zueinander verlaufende Zuführbänder vorzusehen, mit denen die Feder verbunden ist. Wesentlich ist, dass die Federn nicht unmittelbar miteinander verbunden, also bereits vereinzelt sind, jedoch gleichzeitig eine definierte Lage besitzen, in welcher sie der Einführeinheit zugeführt werden.For the purposes of the invention, a feed belt is in particular a belt made of a plastic material. In principle, it is possible to provide a plurality of mutually parallel feed belts, with which the spring is connected. It is essential that the springs are not directly connected to each other, so already isolated, but at the same time have a defined position in which they are fed to the insertion unit.

Die Federn können vollflächig oder auch nur bereichsweise/punktuell mit dem Zuführband verbunden sein. Es kommt letztendlich auf die für den Transport hinreichend sichere Lagefixierung aber auch auf die leichte Ablösbarkeit der Feder von dem Zuführband an. Die lösbare Verbindung der Federn kann durch vollflächiges oder punktuelles Verkleben erfolgen, wobei der verwendete Klebstoff ein wiederablösen der Federn von dem Zuführband ermöglicht. Hierzu kann das Zuführband eben sein. Das Zuführband kann aber auch konturiert, also nicht eben sein. Die Konturierung wird von Erhebungen und Vertiefungen gebildet, die in ihrer Anordnung und Gestalt an die Geometrie der Federn angepasst sind.The springs can be connected to the feed belt over the entire surface or even only partially / at certain points. It depends ultimately on the transport sufficiently secure fixing but also on the easy detachability of the spring from the feed belt. The releasable connection of the springs can be done by full-area or selective bonding, the used Adhesive allows a detachment of the springs from the feed belt. For this purpose, the feed belt can be flat. The feed belt can also be contoured, that is not flat. The contouring is formed by elevations and depressions, which are adapted in their arrangement and shape to the geometry of the springs.

Grundsätzlich ist es bei profilierten Zuführbändern auch möglich, die Federn an den Zuführbändern durch Klemmen lösbar zu fixieren. Die Federn stehen bei dieser Art der Fixierung mit den Zuführbändern in einem Formschluss. Selbstverständlich ist im Rahmen der Erfindung nicht ausgeschlossen, formschlüssige und klebetechnische Fixierungen miteinander zu kombinieren.In principle, it is also possible with profiled feed belts to releasably fix the springs to the feed belts by clamping. The springs are in this type of fixation with the feed belts in a positive connection. Of course, it is not excluded within the scope of the invention to combine positive and adhesive fixations with each other.

Zweckmäßigerweise soll so wenig Klebstoff wie möglich eingesetzt werden, wobei die Federn möglichst frei von Klebstoffanhaftungen in die Nut eingeführt werden. Hierzu kann ggf. ein Abstreifer vorgesehen sein.It is expedient to use as little adhesive as possible, wherein the springs are introduced into the groove as free of adhesive as possible. For this purpose, if necessary, a scraper can be provided.

Die Federn können aus Holz, Metall, Kunststoff, oder Kompositmaterialien wie z.B. Holz-Kunststoff-Gemischen oder Faserverbundwerkstoffen bestehen. Je nach Basismaterial und Geometrie können die Federn im Spritzgussverfahren oder durch Extrusion oder hergestellt sein. Bei flächigen Basismaterialien kommt ein Herausprofilieren oder auch ein Stanzen in Betracht. Es kann sich somit z.B. um Stanzformteile oder Spritzgussteile handeln. Die Federn können starr oder elastisch ausgebildet sein. Sie können ein- oder mehrteilig ausbildet sein.The springs may be made of wood, metal, plastic, or composite materials such as e.g. Wood-plastic mixtures or fiber composites exist. Depending on the base material and geometry, the springs may be injection molded or extruded or manufactured. In the case of sheet-like base materials, out-profiling or punching is possible. It can thus be e.g. to punched or molded parts act. The springs can be rigid or elastic. They can be formed in one or more parts.

Das Zuführband kann perforiert sein oder Passermarkierungen aufweisen, um eine einwandfreie Führung zu ermöglichen, ähnlich wie bei einem Zahnriemen.The feed belt may be perforated or have registration marks to allow proper guidance, similar to a timing belt.

Zum Ablösen der Federn von dem Zuführband werden die Federn auf eine Transportschiene überführt, über welche sie zu der Einführeinheit gelangen, mit welcher die Federn schließlich in die Nuten eingebracht werden. Die Transportschiene ersetzt als Auflager für die Federn gewissermaßen das Zuführband und besitzt daher die gleiche Orientierung wie das Zuführband. Über eine Nut in der Transportschiene kann das Zuführband umgelenkt werden, wobei die Federn über die Nut hinweg gleiten und in Richtung zur Einführeinheit weitertransportiert werden. Der Transport der Federn kann entweder durch Zugbelastung des Zuführbands oder aber durch einen Bandförderer erfolgen, der die Federn fasst und diese in Richtung der Transportschiene verlagert. Unter einem Bandförderer ist ein form- oder reibschlüssiger Hülltrieb zu verstehen, dessen Mitnehmer mit den Federn in Eingriff gelangen und diese transportieren. Es kann sich bei dem Bandförderer um einen Kettentrieb oder auch um einen Flachriementrieb handeln, wobei in Anbetracht der Größe der Federn primär ein Flachriementrieb zum Einsatz kommt. Dieser Flachriementrieb ist mit einer Antriebseinheit versehen, über welche die Federn in Transportrichtung vorwärts bewegt werden und zur Einführeinheit gelangen. Die Mitnehmer sind vorzugsweise so angeordnet, dass sie nicht nur auf, sondern zwischen einander benachbarte Federn fassen, die zu diesem Zweck in einem vorgegebenen Abstand zueinander angeordnet sind. Auf diese Weise ist sichergestellt, dass zwischen zwei aufeinander folgenden Mitnehmern jeweils eine Feder angeordnet ist, die durch den Bandförderer mit definierter Geschwindigkeit der Einführeinheit zugeführt wird. Zusätzlich zum Antrieb des Bandförderers kann das Zuführband gezogen werden, insbesondere wenn dieses aufgewickelt wird. Es ist hierbei notwendig, das Zuführband mit einer zur Geschwindigkeit des Bandförderers synchronisierten Geschwindigkeit zu ziehen.To detach the springs from the feed belt, the springs are transferred to a transport rail, via which they reach the insertion unit, with which the springs are finally introduced into the grooves. The transport rail replaced as a support for the springs, so to speak, the feed belt and therefore has the same orientation as the feed belt. Via a groove in the transport rail, the feed belt can be deflected be, with the springs slide over the groove away and be transported in the direction of the insertion. The transport of the springs can either be done by pulling the Zuführbands or by a belt conveyor, which summarizes the springs and this moves in the direction of the transport rail. Under a belt conveyor is to understand a positive or frictional envelope, the driver engage with the springs and transport them. It may be in the belt conveyor to a chain drive or a flat belt drive, in view of the size of the springs primarily a flat belt drive is used. This flat belt drive is provided with a drive unit, via which the springs are moved forward in the transport direction and reach the insertion unit. The drivers are preferably arranged so that they not only on, but between adjacent springs summarize, which are arranged for this purpose at a predetermined distance from each other. In this way, it is ensured that between two consecutive drivers each have a spring is arranged, which is fed by the belt conveyor with a defined speed of the insertion. In addition to driving the belt conveyor, the feed belt can be pulled, especially when it is being wound up. It is necessary to pull the feed belt at a speed synchronized with the speed of the belt conveyor.

Die erfindungsgemäße Vorrichtung des Verfahrens sieht Mittel zur Bereitstellung einer mit einer Feder zu versehenden Elementplatte vor und eine Speichereinheit zur Aufnahme des mit Federn beklebten Zuführbands. Diese Speichereinheit ist insbesondere ein Magazinspeicher mit mehreren Coils. Grundsätzlich ist es aber auch möglich, dass das Zuführband in Schlaufen gelegt ist und in dieser Form der erfindungsgemäßen Vorrichtung zugeführt wird. Die Vorrichtung umfasst ferner einen Bandförderer, welcher mit den auf dem Zuführband lösbar angeordneten Federn in Kontakt steht und insbesondere diese formschlüssig fasst. Ferner ist eine Gleitschiene zum Weitertransport von vom Zuführband abgelösten Federn erforderlich sowie eine Einführeinheit, mittels welcher die Federn in eine Nut der Elementplatten einsetzbar sind. Die ganze Anordnung arbeitet mit hoher Geschwindigkeit, so dass entsprechende elektrische Antriebe und Steuerungsmittel mit der notwendigen Aktorik und Sensorik vorausgesetzt werden. Es handelt sich um ein automatisiertes Verfahren, mit welchem Federn unterschiedlicher Bauform in entsprechend ausgebildete Nuten eingesetzt werden können.The inventive device of the method provides means for providing an element plate to be provided with a spring and a storage unit for receiving the spring-bonded feed belt. This storage unit is in particular a magazine storage with several coils. In principle, it is also possible that the feed belt is placed in loops and is supplied in this form of the device according to the invention. The device further comprises a belt conveyor which is in contact with the springs arranged detachably on the conveyor belt and in particular grips them in a form-fitting manner. Furthermore, a slide rail for further transport of detached from the feed belt springs is required as well as an insertion unit, by means of which the springs in a groove of the element plates can be used. The whole arrangement operates at high speed, so that corresponding electrical drives and control means with the necessary actuators and sensors are required. It is an automated process, with which springs of different design can be used in appropriately trained grooves.

Die Federn sind insbesondere Kopffedern im Sinne der WO 2008/017301 A2 , d.h. sie können durch Schrägflächen, Biegungen oder Knicken von einer Nut in eine benachbarte Nut verlagert werden, wobei die Federn vor dem Verbinden zweier Elementplatten reibschlüssig innerhalb der Nuten, in die sie eingesetzt worden sind, gehalten sind. Es handelt sich insbesondere um Federn, die über eine Längsseite der Elementplatte vorstehen und durch Verschieben des voroder überstehenden Endes wieder in die Nut hinein, teilweise von der einen Nut in die korrespondierende Nut der benachbarten Elementplatte verlagerbar sind.The springs are in particular head feathers in the sense of WO 2008/017301 A2 that is, they can be displaced by sloping surfaces, bends or kinks from one groove into an adjacent groove, wherein the springs are frictionally held within the grooves into which they have been inserted prior to joining two element plates. These are, in particular, springs which protrude beyond a longitudinal side of the element plate and, by displacing the protruding or protruding end back into the groove, are partially displaceable from one groove into the corresponding groove of the adjacent element plate.

Die Erfindung wird nachfolgend anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to the embodiment shown in the drawing.

Es ist in stark vereinfachter Darstellung eine Vorrichtung 1 dargestellt, mittels welcher auf einem Coil 2 aufgewickelte Federn 3 in eine Nut 4 einer im Verbund verlegbaren Elementplatte 5 einsetzbar sind.It is shown in a greatly simplified representation of a device 1, by means of which wound on a coil 2 springs 3 in a groove 4 of a composite element plate 5 can be used.

Diese Vorrichtung 1 dient zur Verarbeitung von Federn 3, die lösbar mit einem Zuführband 6 verbunden, insbesondere mit diesem durch Verkleben verbunden sind. In der Vorrichtung 1 werden die Federn 3 von dem Zuführband 6 gelöst. Nach dem Ablösen der Federn 3 wird das Zuführband 6 aufgewickelt und kann erneut mit Federn 3 bestückt werden.This device 1 is used for processing of springs 3, which are detachably connected to a feed belt 6, in particular connected thereto by gluing. In the device 1, the springs 3 are released from the feed belt 6. After detachment of the springs 3, the feed belt 6 is wound up and can be re-equipped with springs 3.

Die Federn 3 sind in konstantem Abstand auf dem Zuführband 6 fixiert und werden innerhalb der Vorrichtung in der Bildebene von recht nach links transportiert. Der Weitertransport der Federn 3 erfolgt über einen Bandförderer 7, der ein flaches Transportband 8 aufweist, das mit Mitnehmern 9 versehen ist. Die Mitnehmer 9 sind in dem gleichen Abstand angeordnet, wie die Federn 3 auf dem Zuführband 6, so dass immer ein Mitnehmer 9 zwischen zwei Federn 3 fasst. Der Untertrum 10 des Transportbandes 8 verläuft auf der dem Zuführband 6 abgewandten Seite der Federn 3. Etwa in der Mitte des Untertrums 10 befindet sich eine Umlenkrolle 11, auf die eine Nut 12 folgt, durch welche das Zuführband 6 nach unten weggezogen und aufgewickelt wird. Gleichzeitig steht der Untertrum 10 des Bandförderers 7 in formschlüssigem Eingriff mit den Federn 3, so dass diese über die Umlenkrolle 11 und die Nut 12 hinweg auf eine Transportschiene 13 befördert werden, welche zu einer Einführeinheit 14 führt.The springs 3 are fixed at a constant distance on the feed belt 6 and are transported within the device in the image plane from right to left. The further transport of the springs 3 via a belt conveyor 7, which has a flat conveyor belt 8, which is provided with carriers 9. The drivers 9 are arranged at the same distance, as the springs 3 on the feed belt 6, so that always a driver 9 between two springs 3 sums up. The lower run 10 of the conveyor belt 8 extends on the side facing away from the feed belt 6 of the springs 3. Approximately in the middle of the lower run 10 is a guide roller 11, followed by a groove 12, through which the feed belt 6 is pulled down and wound. At the same time, the lower run 10 of the belt conveyor 7 is in positive engagement with the springs 3, so that they are transported over the guide roller 11 and the groove 12 away on a transport rail 13, which leads to an insertion unit 14.

Durch Linearverlagerung der Einführeinheit 14 in Richtung des Pfeils P werden die Federn 3 einzeln in die Nut 4 einer jeweiligen Elementplatte 5 eingesetzt. In nicht näher dargestellter Weise wird nach dem Einsetzen der Feder 3 eine weitere Elementplatte 5 gegenüber der Einführeinheit positioniert, so dass sich der zuvor beschriebene Ablauf wiederholt und die nächste Elementplatte 5 mit einer Feder 3 versehen wird.By linear displacement of the insertion unit 14 in the direction of the arrow P, the springs 3 are inserted individually into the groove 4 of a respective element plate 5. In a manner not shown, a further element plate 5 is positioned relative to the insertion unit after insertion of the spring 3, so that the procedure described above is repeated and the next element plate 5 is provided with a spring 3.

Bezugszeichen:Reference numerals:

1 -1 - Vorrichtungcontraption 2-2 Coilcoil 3-3 Federfeather 4-4 Nutgroove 5-5 Elementplattefloorboard 6-6 Zuführbandinfeed 7-7- Bandfördererbelt conveyors 8-8th- Transportbandconveyor belt 9-9- Mitnehmertakeaway 10-10- Untertrumstrand 11 -11 - Umlenkrolleidler pulley 12-12- Nutgroove 13-13- Transportschienetransport rail 14-14- Einführeinheitinsertion unit P-P- Pfeilarrow

Claims (17)

  1. Method for inserting a spring (3) into a longitudinal-side or head-side groove (4) of element panels (5) which can be laid in combination, wherein the element panels (5) can be locked together by means of a movement of the spring (3) relative to the element panels (5), having the following steps:
    a) providing springs (3) on a supply belt (6), wherein the springs (3) are releasably connected to the supply belt (6);
    b) detaching the springs (3) from the supply belt (6);
    c) moving the springs (3) into the groove (4) of a provided element panel (5).
  2. Method according to claim 1, in which the springs (3) are provided on the supply belt (6) by releasably glueing them to at least certain areas of the supply belt (6).
  3. Method according to claim 1, in which the springs (3) are provided on the supply belt (6) by releasably clamping them onto at least certain areas of the supply belt (6).
  4. Method according to one of the claims 1 to 3, characterised in that the supply belt (6) with the springs (3) is provided as a wound coil (2).
  5. Method according to one of the claims 1 to 4, characterised in that the springs (3) are moved by a belt conveyor (7) onto a transport rail (13) by means of which the springs (3) reach an insertion unit (14) through which the springs (3) are introduced into the grooves (4).
  6. Method according to claim 5, characterised in that the belt conveyor (7) has flights (9), arranged on a transport belt (8), which grip the springs (3) and move them in the direction of the transport rail (13).
  7. Method according to claim 5 or 6, characterised in that the supply belt (6) is carried along by the glued-on springs (3) by means of the belt conveyor (7).
  8. Method according to one of the claims 5 to 7, characterised in that the supply belt (6) is pulled at a speed synchronised with the speed of the belt conveyor (7).
  9. Method according to one of the claims 1 to 8, characterised in that the springs (3) are inserted, without glue attached, into the groove (4).
  10. Device for performing the method according to claim 1, comprising
    a) means for providing an element panel (5) to be equipped with a spring (3),
    b) a storage unit for accommodating the supply belt (6) loaded with springs (3),
    c) a belt conveyor (7) which is in contact with springs (3) arranged on the supply belt (6),
    d) a transport rail (13) for the onward transport of springs (3) detached from the supply belt (6),
    e) an insertion unit (14) by means of which the springs (3) can be inserted into a groove (4) of the element panels (5).
  11. Device according to claim 10, comprising a drive unit for pullingly moving the supply belt (6).
  12. Device according to claim 10 or 11, wherein the belt conveyor (7) has flights (9).
  13. Device according to claim 12, characterised in that the flights (9) grip between the springs (3) arranged on the supply belt (6).
  14. Device according to one of the claims 10 to 13, comprising a winding unit.
  15. Device according to one of the claims 10 to 14, characterised in that the springs (3) are releasably glued to at least certain areas of the supply belt (6).
  16. Device according to one of the claims 10 to 14, characterised in that the springs (3) are releasably held clamped to the supply belt (6).
  17. Device according to one of the claims 10 to 16, characterised in that the supply belt (6) features surface contouring adapted to the geometry of the springs (3).
EP09772922A 2008-06-30 2009-06-29 Method and device for inserting tongues into a groove Not-in-force EP2300204B8 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09772922T PL2300204T3 (en) 2008-06-30 2009-06-29 Method and device for inserting tongues into a groove

Applications Claiming Priority (2)

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DE102008030281A DE102008030281B3 (en) 2008-06-30 2008-06-30 Method for inserting spring into longitudinal or head-sided groove in element plate of floor covering, involves releasing springs from transition belt and shifting springs into groove in element plates for locking plates with one another
PCT/IB2009/006829 WO2010001262A2 (en) 2008-06-30 2009-06-29 Method and device for inserting springs into a groove

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EP2300204A2 EP2300204A2 (en) 2011-03-30
EP2300204B1 true EP2300204B1 (en) 2012-08-15
EP2300204B8 EP2300204B8 (en) 2012-09-19

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US (1) US8650738B2 (en)
EP (1) EP2300204B8 (en)
CN (1) CN102066064B (en)
DE (1) DE102008030281B3 (en)
PL (1) PL2300204T3 (en)
WO (1) WO2010001262A2 (en)

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BR112018076069B1 (en) * 2016-06-29 2023-01-17 Vãlinge Innovation Ab METHOD AND DEVICE FOR INSERTING A TAG
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JP6999674B2 (en) * 2016-12-22 2022-01-18 ベーリンゲ、イノベイション、アクチボラグ A device for inserting the tongue into the insertion groove of the panel
HRP20231363T1 (en) 2018-01-11 2024-02-16 Välinge Innovation AB A method to produce a veneered element and a veneered element
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CN116529072A (en) 2020-12-08 2023-08-01 瓦林格创新股份有限公司 Method for producing a decorated component and decorated component

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CN102066064B (en) 2012-12-26
US8650738B2 (en) 2014-02-18
CN102066064A (en) 2011-05-18
PL2300204T3 (en) 2013-01-31
DE102008030281B3 (en) 2009-10-29
EP2300204B8 (en) 2012-09-19
WO2010001262A2 (en) 2010-01-07
WO2010001262A3 (en) 2010-02-25
US20110094083A1 (en) 2011-04-28
EP2300204A2 (en) 2011-03-30

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