EP0049219B1 - Device for producing a glued wood joint - Google Patents

Device for producing a glued wood joint Download PDF

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Publication number
EP0049219B1
EP0049219B1 EP81810357A EP81810357A EP0049219B1 EP 0049219 B1 EP0049219 B1 EP 0049219B1 EP 81810357 A EP81810357 A EP 81810357A EP 81810357 A EP81810357 A EP 81810357A EP 0049219 B1 EP0049219 B1 EP 0049219B1
Authority
EP
European Patent Office
Prior art keywords
injection
adhesive
wood
injection needle
joint
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
Application number
EP81810357A
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German (de)
French (fr)
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EP0049219A1 (en
Inventor
Emanuel Kindt
Joachim Sautter
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.)
E KINDT AG vormals Hans Kiefer AG
Original Assignee
E KINDT AG vormals Hans Kiefer AG
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 E KINDT AG vormals Hans Kiefer AG filed Critical E KINDT AG vormals Hans Kiefer AG
Priority to AT81810357T priority Critical patent/ATE8592T1/en
Publication of EP0049219A1 publication Critical patent/EP0049219A1/en
Application granted granted Critical
Publication of EP0049219B1 publication Critical patent/EP0049219B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1722—Means applying fluent adhesive or adhesive activator material between layers
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1722—Means applying fluent adhesive or adhesive activator material between layers
    • Y10T156/1724—At spaced areas
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1798—Surface bonding means and/or assemblymeans with work feeding or handling means with liquid adhesive or adhesive activator applying means

Definitions

  • the two wooden strips 1 and 2 to be glued form the corner connection of a blind frame made of wood and are provided with grooves 3 or pins 4 which are inserted into one another.
  • the corner connection is placed on the gluing device which is symmetrical in relation to the center plane 5 and is pushed against a stop (not shown in more detail).
  • the gluing device has two hydraulic main units 6 in order to press and hold the two holding flanges 7 against the wooden strips 1, 2.
  • the two pairs of needles 11 protruding from the end faces of the flanges 7 are pushed into the wood.
  • the ends of the piston rods 13 of the injection hydraulic units 8 are connected via coupling pieces 14 to two plungers 15, which protrude into the cylinder spaces 12 and press the adhesive into the needles 11.
  • the four injection needles 11 penetrate into the wood from the sides to a depth where their lateral openings 16 are connected to the adhesive surfaces on the grooves 3 and pins 4.
  • adhesive with high pressure now penetrates between the pins and grooves and is distributed evenly over the entire adhesive surface.
  • the flanges 7 act as a seal, so no Adhesive can escape laterally.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
  • Furniture Connections (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

In the process for the production of a glued joint for wood, the surfaces to be glued are held tightly together. At least one injection needle is driven into the wood up to a depth at which the outlet of the needle point comes into contact with the surface. The fluid adhesive is then driven under pressure through the injection needle and evenly distributed between the surfaces. The process is particularly suited for the production of window blind frames made of wood, in which the wood edges to be glued are joined by means of pins and slots. The process makes possible the production of joints of great strength, with very low tolerances between the pins and slots.

Description

Zum Verleimen von durch Zapfenverbindungen miteinander verbundenen Holzteilen ist es bekannt, die Federn mit einem Klebstoff zu bestreichen und dann in die Nuten hineinzupressen. Wenn die Zapfenverbindung nicht mit grossen Toleranzen und dadurch mit ungenau eingehaltenen Fertigmassen hergestellt wurden, wurde ein grosser Teil des Klebstoffes wieder abgestreift, und es bleibt oft nur ein verschwindend geringer Rest zwischen den zu verbindenden Flächen. Dies zeigt sich auch bei Möbeln, insbesondere bei Stühlen, indem sich nach einiger Zeit die Stuhlbeine lösten, weil das Holz der Feder und/ oder der Nut infolge Alterung schwand und die geringe Klebstoffschicht nur eine ungenügende Elastizität hat.For gluing wooden parts connected by tenon joints, it is known to coat the springs with an adhesive and then to press them into the grooves. If the spigot connection was not made with large tolerances and thus with inaccurate finished dimensions, a large part of the adhesive was stripped again, and there is often only a negligible small amount remaining between the surfaces to be connected. This can also be seen in furniture, particularly in chairs, in that the chair legs loosen after a while because the wood of the tongue and / or the groove shrinks due to aging and the low adhesive layer has only insufficient elasticity.

Um bei Möbeln solcherart schadenhafte Stellen rasch und wirkungsvoll auszubessern, wurde in der US-A 2040126 vorgeschlagen, in die Partie mit der Feder ein kleines Loch bis zum Nutengrund zu bohren, um dann Klebstoff durch diesen Kanal zu pressen, der sich dann in allen angebohrten Hohlräumen einer Zapfenverbindung verteilen konnte. Diese Lösung des Problems bei Stühlen oder dgl. kann aber nicht auf die fabrikatorische Herstellung von Fensterrahmen oder von Rahmen für Fensterläden übertragen werden, weil es praktisch betrachtet nicht möglich ist, auf diese Art Klebstoff zwischen zwei aneinander anliegende Flächen zu bringen oder dann nur mit einem die Rahmen stark verteuernden Aufwand.In order to repair damaged areas of furniture quickly and effectively, it was proposed in US-A 2040126 to drill a small hole in the part with the spring to the bottom of the groove, in order to then press adhesive through this channel, which was then drilled into all of them Could distribute cavities of a tenon joint. However, this solution to the problem with chairs or the like cannot be transferred to the manufacturing of window frames or frames for shutters, because in practical terms it is not possible in this way to bring adhesive between two adjacent surfaces, or only with one the frames are very expensive.

Anderseits ist es aus der DE-C 888 041 bekannt geworden, bei Geweben eine nahtartige Verbindung auf ähnliche Weise zu bilden, indem ein Klebstoff durch eine die zu verbindenden Teile eindringende Hohlnadel mit seitlichen Austrittsöffnungen für den Klebstoff zwischen die aufeinandergelegten Lagen eingebracht wird. Es ist vorgesehen, diese Art der Bildung von nahtartigen Verbindungen bei dünnen Schichten von etwa 1 ... 5 mm Wandstärken zu verwenden, wie aus der denselben Gegenstand betreffenden DE-C 1 141 869 hervorgeht. Für das Durchdringen von Holzplatten werden andere Vorrichtungen benötigt, die den entsprechenden Materialeigenschaften angepasst sind, und es genügt dabei auch nicht, den Klebstoff an irgendeine Stelle zwischen den Lagen hinzubringen, sondern der Klebstoff muss genau zwischen die zu verbindenden Flächen hineingepresst werden.On the other hand, it has become known from DE-C 888 041 to form a seam-like connection in a similar manner in the case of fabrics, in that an adhesive is introduced through a hollow needle penetrating the parts to be connected and having lateral outlet openings for the adhesive between the layers which are placed one on top of the other. It is envisaged to use this type of formation of seam-like connections in thin layers of approximately 1 to 5 mm wall thickness, as is apparent from DE-C 1 141 869 relating to the same subject. For the penetration of wood panels other devices are required, which are adapted to the appropriate material properties, and it is not enough to bring the adhesive anywhere between the layers, but the adhesive must be pressed exactly between the surfaces to be joined.

Bei Holzjalousien, die der Witterung ausgesetzt sind, müssen witterungsfeste Leime verwendet werden, deren Verarbeitung besondere Schwierigkeiten mit sich bringt. Diese gut haftenden, wasserfesten Leime sind meist ausserordentlich klebrig und von Hand schwer zu verarbeiten. Rückstände können nur mit grosser Schwierigkeit von den Händen und Kleidern der die Verleimung ausführenden Personen entfernt werden. Ebenso ist die Reinigung der Applikationsgeräte mühsam und arbeitsintensiv.For wooden blinds that are exposed to the weather, weather-resistant glues must be used, the processing of which presents particular difficulties. These highly adhesive, waterproof glues are usually extremely sticky and difficult to process by hand. Residues can only be removed from the hands and clothes of the persons carrying out the gluing with great difficulty. Likewise, cleaning the application devices is laborious and labor intensive.

Die Erfindung stellt sich zum Ziel, ein einfach und rationell durchführbares Verfahren zum Verleimen von Holz zu schaffen, das sauber in der Anwendung ist, und mit welchem auch klebrige, wasserfeste Leime problemlos verarbeitet werden können. Beim Verleimen von Holzteilen, die durch Zapfen und Nuten miteinander verbunden sind, soll es möglich sein, wesentlich engere Passungen und dünnere, gleichmässig verteilte Leimschichten zu erhalten, um eine optimale Festigkeit der Klebverbindung zu gewährleisten.The aim of the invention is to provide a method for gluing wood which is simple and efficient to carry out, which is clean in use and with which sticky, waterproof glues can also be processed without problems. When gluing wooden parts that are connected by tenons and grooves, it should be possible to obtain significantly tighter fits and thinner, evenly distributed layers of glue in order to ensure optimum strength of the adhesive bond.

Erfindungsgemäss werden diese Aufgaben durch die im Anspruch 1 beschriebene Vorrichtung gelöst. Vorteilhafte Weiterbildungen sind in den Ansprüchen 2 bis 5 aufgeführt.According to the invention, these objects are achieved by the device described in claim 1. Advantageous further developments are listed in claims 2 to 5.

Nachfolgend wird anhand der Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigen :

  • Figur 1 eine Ansicht von vorne auf ein Verleimungsgerät für Holzjalousien, wobei im rechten Teil der Zeichnung die Injektionsnadeln in der eingeführten Lage dargestellt sind und im linken Teil der Zeichnung die Injektionsnadeln vor der Einführung gezeigt sind, und
  • Figur 2 einen Teilschnitt nach der Linie 11-11 durch den mittleren Bereich des Verleimungsgerätes gemäss Fig. 1 in grösserem Masstab.
An exemplary embodiment of the invention is explained in more detail below with reference to the drawings. Show it :
  • Figure 1 is a front view of a gluing device for wooden blinds, the injection needles are shown in the inserted position in the right part of the drawing and the injection needles are shown in the left part of the drawing before insertion, and
  • 2 shows a partial section along the line 11-11 through the central region of the gluing device according to FIG. 1 on a larger scale.

Die zu verleimenden beiden Holzleisten 1 und 2 bilden die Eckverbindung eines Jalousierahmens aus Holz und sind mit Nuten 3 bzw. Zapfen 4 versehen, die ineinandergesteckt sind. Die Eckverbindung wird zum Verleimen auf das in bezug auf die Mittenebene 5 symmetrisch ausgebildete Verleimungsgerät gelegt und gegen einen nicht näher dargestellten Anschlag angestossen. Das Verleimungsgerät weist zwei hydraulische Hauptaggregate 6 auf, um die beiden Halteflansche 7 gegen die Holzleisten 1, 2 zu drücken und festzuhalten. Dabei werden die aus den Stirnflächen der Flansche 7 herausragenden zwei Nadelpaare 11 in das Holz gestossen.The two wooden strips 1 and 2 to be glued form the corner connection of a blind frame made of wood and are provided with grooves 3 or pins 4 which are inserted into one another. For gluing, the corner connection is placed on the gluing device which is symmetrical in relation to the center plane 5 and is pushed against a stop (not shown in more detail). The gluing device has two hydraulic main units 6 in order to press and hold the two holding flanges 7 against the wooden strips 1, 2. The two pairs of needles 11 protruding from the end faces of the flanges 7 are pushed into the wood.

Zwei weitere hydraulische Aggregate 8 dienen dazu, den vom Druckbehälter 9 über die Leitung 10 zugeführten flüssigen Klebstoff in die Injektionsnadeln 11 zu pressen. Jede Injektionsnadel weist einen eigenen Zylinderraum 12 auf, welcher vor jeder Verpressung mit Klebstoff gefüllt wird.Two further hydraulic units 8 are used to press the liquid adhesive supplied from the pressure vessel 9 via the line 10 into the injection needles 11. Each injection needle has its own cylinder space 12, which is filled with adhesive before each injection.

Die Enden der Kolbenstangen 13 der Injektions-Hydraulik-aggregate 8 sind über Kupplungsstücke 14 mit je zwei Stösseln 15 verbunden, welche in die Zylinderräume 12 hineinragen und den Klebstoff in die Nadeln 11 pressen. Die vier Injektionsnadeln 11 dringen von den Seiten in das Holz ein bis zu einer Tiefe, wo ihre seitlichen Oeffnungen 16 mit den Klebflächen an den Nuten 3 und Zapfen 4 in Verbindung stehen. Bei der Betätigung des Injektions-Hydraulikaggregates 8 dringt nun Klebstoff mit hohem Druck zwischen die Zapfen und nuten ein und verteilt sich gleichmässig über die gesamte Klebefläche. Die Flansche 7 wirken dabei als Dichtung, damit kein Klebstoff seitlich entweichen kann.The ends of the piston rods 13 of the injection hydraulic units 8 are connected via coupling pieces 14 to two plungers 15, which protrude into the cylinder spaces 12 and press the adhesive into the needles 11. The four injection needles 11 penetrate into the wood from the sides to a depth where their lateral openings 16 are connected to the adhesive surfaces on the grooves 3 and pins 4. When the hydraulic injection unit 8 is actuated, adhesive with high pressure now penetrates between the pins and grooves and is distributed evenly over the entire adhesive surface. The flanges 7 act as a seal, so no Adhesive can escape laterally.

Die beiden Haupthydraulikaggregate 6 sind fest an beiden Enden der Grundplatte 17 des Verleimungsgerätes montiert. Ihre beiden Kolbenstangen 18 sind je mit einer Injektionseinheit 19 verbunden, wobei diese Einheiten 19 in bezug auf die Mittenebene 5 gegengleich zueinander horizontal verschiebbar sind. Sie sind auf den Lagerstützen 20 gelagert.The two main hydraulic units 6 are fixedly mounted on both ends of the base plate 17 of the gluing device. Its two piston rods 18 are each connected to an injection unit 19, these units 19 being horizontally displaceable relative to one another with respect to the center plane 5. They are supported on the bearing supports 20.

Die Injektions-Hydraulikaggregate 8 sind in diesen beiden Einheiten 19 untergebracht, wobei die Flansche 7 am Kopf 21 jeder Einheit befestigt sind. In diesem Kopf sind auch die Zylinderräume 12 für den Leim ausgespart.The injection hydraulic units 8 are housed in these two units 19, the flanges 7 being attached to the head 21 of each unit. The cylinder spaces 12 for the glue are also recessed in this head.

Das vorstehend beschriebene Verleimungsgerät gestattet, Holzverbindungen mit sehr hoher Festigkeit herzustellen, wobei die Toleranzen zwischen den Zapfen und den Nuten sehr klein gehalten werden können in der Grössenordnung von 0,3 mm. Die Klebstoffmenge ist durch den Stösselhub gegeben und kann genau eingestellt werden, so dass immer die gleiche Menge bei jeder Injektion abgegeben wird. Der Arbeitszyklus des Gerätes wird über eine nicht näher dargestellte Steuerelektronik vollautomatisch gesteuert. Das Verleimungsgerät arbeitet sehr rationell und benötigt wenig Zeitaufwand gegenüber den heute üblichen Verleimungsmethoden.The gluing device described above allows wood connections to be made with very high strength, whereby the tolerances between the pins and the grooves can be kept very small in the order of magnitude of 0.3 mm. The amount of adhesive is given by the ram stroke and can be adjusted precisely so that the same amount is always dispensed with each injection. The operating cycle of the device is controlled fully automatically by control electronics, not shown. The gluing device works very efficiently and requires little time compared to today's gluing methods.

Claims (5)

1. Apparatus for making an adhesive joint between wooden parts connected by a mortise and tenon joint, at least one injection needle (11) being used to introduce an adhesive into the joint, a plunger (15) projecting into one end of a cylinder chamber (12) which is adapted to be filled with adhesive and the other end of which is connected ot the cavity of the injection needle (11), characterised in that a main hydraulic unit (6) is provided to press the injection needle (11) into the wooden parts (1, 2) for joining, and the piston rod (13) of an injection hydraulic unit (8) engages the plunger (15).
2. Apparatus according to claim 1, characterised in that the main hydraulic unit (6) is mounted on a baseplate (17) and acts on a horizontally movable injection unit (19) in which the injection hydraulic unit (8) is accommodated.
3. Apparatus according to claim 2, characterised in that the injection needle (11) projects from the end face of a flange (7) disposed at the head (21) of the injection unit (19).
4. Apparatus according to claim 1, characterised in that it comprises a plurality of needles adapted to be pressed into the wood to different depths.
5. Apparatus according to claim 1, characterised in that it comprises two pairs of injection needles (11) disposed symmetrically with respect to a central plane and so as to be movable in synchronism relatively to one another.
EP81810357A 1980-09-25 1981-09-01 Device for producing a glued wood joint Expired EP0049219B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81810357T ATE8592T1 (en) 1980-09-25 1981-09-01 DEVICE FOR MAKING AN ADHESIVE JOINT IN WOOD PARTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7193/80 1980-09-25
CH719380 1980-09-25

Publications (2)

Publication Number Publication Date
EP0049219A1 EP0049219A1 (en) 1982-04-07
EP0049219B1 true EP0049219B1 (en) 1984-07-25

Family

ID=4321345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81810357A Expired EP0049219B1 (en) 1980-09-25 1981-09-01 Device for producing a glued wood joint

Country Status (4)

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US (1) US4420358A (en)
EP (1) EP0049219B1 (en)
AT (1) ATE8592T1 (en)
DE (1) DE3165074D1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0275098A3 (en) * 1987-01-15 1990-01-31 Ludolf Stegherr Multiple bore and dowel unit and method and apparatus for readying dowels or similar cylindrical connecting elements
US4971124A (en) * 1989-09-29 1990-11-20 Wolle Christopher S Sliver patching method and apparatus
DE4037980C1 (en) * 1990-11-29 1992-04-09 Schotten & Hansen Gmbh, 8110 Murnau, De Glue feed for wood joints - has pin with glue supply bore and outer elastomeric sealing sleeve
DE4420267A1 (en) * 1994-06-10 1995-12-14 Hilti Ag Method for fastening a fastening element in a wooden component
US6217581B1 (en) 1995-10-18 2001-04-17 John Thomas Tolson High pressure cement injection device for bone repair
US5928468A (en) * 1995-10-18 1999-07-27 Tolson; John Thomas High pressure glue injection device
EP0953432A1 (en) * 1998-04-28 1999-11-03 Academisch Ziekenhuis Utrecht Method and device for interconnecting two objects
CN201225330Y (en) * 2008-06-24 2009-04-22 陈清辉 Woody ceiling fan blade

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2040126A (en) * 1935-06-17 1936-05-12 Fred H Grieve Method of regluing tenon and mortise joints

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE888041C (en) * 1952-03-11 1953-08-27 Duerkoppwerke Ag Method for creating a seam-like connection of tissue or the like.
US3031349A (en) * 1957-04-09 1962-04-24 Dritz Arthur Apparatus for securing together superposed plies of cloth or plastic sheets
US3892621A (en) * 1973-10-17 1975-07-01 Albert R Salonen Method and application for applying liquefied adhesive material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2040126A (en) * 1935-06-17 1936-05-12 Fred H Grieve Method of regluing tenon and mortise joints

Also Published As

Publication number Publication date
ATE8592T1 (en) 1984-08-15
EP0049219A1 (en) 1982-04-07
US4420358A (en) 1983-12-13
DE3165074D1 (en) 1984-08-30

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