EP1293633A2 - Door closer - Google Patents

Door closer Download PDF

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Publication number
EP1293633A2
EP1293633A2 EP02020109A EP02020109A EP1293633A2 EP 1293633 A2 EP1293633 A2 EP 1293633A2 EP 02020109 A EP02020109 A EP 02020109A EP 02020109 A EP02020109 A EP 02020109A EP 1293633 A2 EP1293633 A2 EP 1293633A2
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EP
European Patent Office
Prior art keywords
valve
valve body
piston
door closer
housing
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.)
Granted
Application number
EP02020109A
Other languages
German (de)
French (fr)
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EP1293633B1 (en
EP1293633A3 (en
Inventor
Rudi Feucht
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.)
Geze GmbH
Original Assignee
Geze GmbH
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Filing date
Publication date
Application filed by Geze GmbH filed Critical Geze GmbH
Publication of EP1293633A2 publication Critical patent/EP1293633A2/en
Publication of EP1293633A3 publication Critical patent/EP1293633A3/en
Application granted granted Critical
Publication of EP1293633B1 publication Critical patent/EP1293633B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12Special devices controlling the circulation of the liquid, e.g. valve arrangement
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/102Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with rack-and-pinion transmission between driving shaft and piston within the closer housing
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Type of wing
    • E05Y2900/132Doors

Definitions

  • the invention relates to a door closer according to the preamble of the claim 1.
  • the door closer has a housing in which a piston is guided linearly displaceable.
  • One designed as a closing spring mechanical energy storage acts for automatic Closing the door leaf on a driven member designed as a closer shaft, on which a force-transmitting linkage can be connected.
  • a hydraulic damping device causes a muted closing of the door leaf, wherein the housing interior is filled with a damping medium and the piston the housing interior liquid-tight in two housing chambers divided.
  • FIG. 1 An embodiment of the o.g. DE-OS (FIG. 1 there) shows a separate arrangement of overflow valve and pressure relief valve in the piston. This embodiment is time-consuming and expensive to manufacture, as in the piston several Holes must be introduced and the valves are mounted separately.
  • FIG. 2 shows a piston with a frontally mounted on the piston cap-shaped molding, in which a combined valve (combination of non-return valve and pressure relief valve) is arranged.
  • This embodiment is in the production time and Costly because the manufacture and assembly of a separate molding is required for receiving the valve and the piston for mounting the Must be pretreated molding (twisting the piston to create a smaller cross section in the region of the molded part, additional bore for preventing rotation).
  • the invention is based on the object, a door closer with pressure relief valve to create, which is easy and inexpensive to produce.
  • the designed as a combination of overflow valve and pressure relief valve has a directly slidably guided guided in a piston bore of the piston Valve body on.
  • the piston therefore only a single hole are introduced for receiving the valve, and the inner surface of the piston bore acts directly on the valve body and its seal together, thereby additional items are saved; both lower the production costs clear.
  • the valve can be completely pre-assembled outside the piston: into the valve body can after inserting the valve plug and a spring a valve core be inserted, with the connection between the valve core and valve body can be designed as a latching connection. This too leads to a serious Simplification of assembly and thus to a further reduction of Production costs.
  • the pre-assembled valve can finally in a very simple way, namely latching be inserted into the piston bore.
  • the valve can also be modular: it can be a single, uniform trained valve body provided to cover all applications be.
  • this valve body can be varied, the particular application adapted parts, in particular different valve inserts and / or different springs and / or different valve cone, be used.
  • the springs can be different depending on the response pressure of the pressure relief valve be long, with a suitable valve insert for each spring length can be provided. Leave through this modular construction of the valve the production costs, in particular tool and / or storage costs lower further.
  • valve body e.g. the valve body, the valve core and / or the poppet
  • various components of the valve e.g. the valve body, the valve core and / or the poppet
  • plastic injection molding
  • the door closer 1 shown in FIG . 1 has a housing 2 with a piston 3 guided linearly displaceably therein.
  • the piston 3 is provided in its interior with a toothing 8, in which the gear 9 of the housing 2 of the door closer 1 rotatably mounted closer shaft 10 meshes.
  • a closing spring designed as a helical compression spring 7 is arranged in the left housing chamber 6 and acted upon - on the housing, for example on the left housing closure not shown here - supporting the piston 3 in the illustrated right position. This position corresponds to the closed position of the door leaf, which is connected to the closer shaft 10 of the door closer 1 via a force-transmitting linkage, such as scissor arm or sliding arm, or directly.
  • valve 15 As soon as the door leaf is released, the compressed closing spring presses the piston 3 to the right; the closer shaft 10 is in this case counterclockwise rotated, leaving the connected door in its closed position is transferred. Since the valve 15 at the now in the right housing chamber 4 existing pressure is closed, flows through the damping medium an overflow channel, not shown here, which is also not shown Valve for ensuring the closing dampening contains steamed in the left housing chamber 6 or in the piston interior 5. This ensures that the door does not close abruptly, but muffled in its closed position is transferred. Will the door wing during the muted Closing operation manually overruled, i. the door is closed faster, as it provides the closing damping actually, it is now under stronger Overpressure standing damping medium from the right housing chamber. 6 discharged through the valve 15 in the piston interior 5. The valve 15 is so formed that it only at a relatively large overpressure in the right housing chamber 6, which arises when manually overpressing the door leaf, opens while it is closed during normal damped closing of the door leaf is.
  • FIG. 2 shows a section of the piston 3 in the region of its right-hand end side.
  • the valve body 18 of a valve 15 designed as a combination valve is arranged in a frontal piston bore 14.
  • a valve insert 25 is arranged within the valve body 18.
  • a supported in the valve insert 25, designed as a helical compression spring spring 27 acts on a linearly displaceable poppet 24 against a present in the right end of the valve body 18 bore 23.
  • the valve insert 25 also has on its left front side a bore 28 to the piston interior 5.
  • the valve body 18 of the valve 15 is linearly displaceable within the piston bore 14 arranged.
  • the figure shows the valve body 18 in its left End position.
  • One attached to the valve body 18 liquid-tight, as a ring seal formed seal 19 is in this end position of the valve body 18 tight a depression 16 of the piston bore 14 at.
  • the valve body 18 takes this position in the case of the damped closing process resulting overpressure of Damping medium in the right housing chamber 4 a. That under pressure standing damping medium urging through the bore 23 of the valve body 18th against the spring-loaded valve cone 24.
  • the seal 19 may be more or less compressed if necessary.
  • the valve body 18 is designed so that it is at very high pressure in the right housing chamber 4 against the countersink 16 of the piston bore 14 pushes.
  • a filter disk 22 is arranged in the valve body 18, which optionally present in the flowing-through damping medium Foreign body absorbs.
  • valve body 18 To the right, the sliding movement of the valve body 18 by locking tongues 20 limited, which engage in a recess 17 of the piston bore 14.
  • the valve body 18 takes this position at positive pressure in the piston interior 5 on. Characterized in that the seal 19 in this position of the valve body 18th is no longer in contact with the countersink 16 of the piston bore 14, the Damping medium from the piston interior 5 through the channels shown in Figure 4 flow undamped into the right housing chamber 4. The to the door closer 1 connected door can thus be undamped against the force of the closing spring be opened.
  • valve 15 shown in Figure 3 works identically as described in the previous embodiment. Modified over the previous embodiment, the attachment of the valve insert 25 in the valve body 18.
  • the valve body 18 has recesses 21, in which latching cam 26 of the valve insert 25 engage latching.
  • FIG. 4 shows a cross section through the valve body 18.
  • the valve body 18, which is actually round in cross section, has flattenings 29 which form channels with a flow cross section 30 with the inner wall of the piston bore 14. These channels are traversed by flowing from the piston interior 5 in the right housing chamber 4 damping medium.

Landscapes

  • Fluid-Damping Devices (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Lock And Its Accessories (AREA)

Abstract

Door lock comprises a housing, a plunger (3) linearly guided in the housing, and a hydraulic damping unit. The inner chamber of the housing is filled with a damping medium and is divided into two chambers. An overflow valve is arranged in the plunger for the passage of the damping medium. when the door leaf is opened. A valve body (18) can be guided into the plunger bore (14) and is sealed with the inner surface of the plunger bore using a seal (19). Preferred Features: The plunger bore has a unit for limiting the sliding movement of the valve body. The plunger bore has a recess. The valve body has locking tongues (20) which interact with the plunger bore in a locking manner.

Description

Die Erfindung betrifft einen Türschließer nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a door closer according to the preamble of the claim 1.

Aus der DE 198 08 292 A1 ist ein Türschließer mit den Merkmalen des Oberbegriffs des Anspruchs 1 zum Schließen eines Türflügels bekannt. Der Türschließer weist ein Gehäuse auf, in welchem ein Kolben linear verschiebbar geführt ist. Ein als Schließerfeder ausgebildeter mechanischer Energiespeicher wirkt zum selbsttätigen Schließen des Türflügels auf ein als Schließerwelle ausgebildetes Abtriebsglied, an welchem ein kraftübertragendes Gestänge anschließbar ist. Eine hydraulische Dämpfungseinrichtung bewirkt ein gedämpftes Schließen des Türflügels, wobei der Gehäuseinnenraum mit einem Dämpfungsmedium gefüllt ist und der Kolben den Gehäuseinnenraum flüssigkeitsdicht in zwei Gehäusekammern unterteilt. Beim Öffnen des Türflügels vergrößert sich durch die Verschiebung des Kolbens eine der Gehäusekammern; das Dämpfungsmedium strömt dann durch ein im Kolben angeordnetes Überströmventil von der sich verkleinernden in die sich vergrößernde Gehäusekammer. Beim Schließen des Türflügels ist dieses Überströmventil geschlossen. Das Dämpfungsmedium strömt nun durch ein nicht dargestelltes Dämpfungsventil, welches z.B. in einem in dem Gehäuse verlaufenden Überströmkanal angeordnet ist, aus der sich nun verkleinernden Gehäusekammer in die andere Gehäusekammer. Der Türflügel kann beim Schließvorgang "überdrückt" werden, d.h. er kann manuell schneller in Schließrichtung bewegt werden, als es die Dämpfungseinrichtung eigentlich vorsieht. In diesem Fall entsteht in der sich beim Schließen verkleinernden Gehäusekammer ein großer Überdruck des nur wenig komprimierbaren Dämpfungsmediums. Um die Kolben-Zylinder-Einrichtung oder das kraftübertragende Gestänge in diesem Fall vor Beschädigungen zu schützen, ist im Kolben ein Überdruckventil angeordnet, welches bei einem bestimmten Überdruck des Dämpfungsmediums wirksam wird und das Abfließen des Dämpfungsmediums in die andere Gehäusekammer ermöglicht.From DE 198 08 292 A1 is a door closer with the features of the preamble of claim 1 for closing a door known. The door closer has a housing in which a piston is guided linearly displaceable. One designed as a closing spring mechanical energy storage acts for automatic Closing the door leaf on a driven member designed as a closer shaft, on which a force-transmitting linkage can be connected. A hydraulic damping device causes a muted closing of the door leaf, wherein the housing interior is filled with a damping medium and the piston the housing interior liquid-tight in two housing chambers divided. When opening the door increases by the displacement the piston one of the housing chambers; the damping medium flows then by an arranged in the piston overflow from the downsizing in the enlarging housing chamber. When closing the door leaf this overflow valve is closed. The damping medium now flows by an unillustrated damping valve, which e.g. in one in the housing extending overflow channel is arranged, from the now decreasing Housing chamber in the other housing chamber. The door can be at Closing be "overdriven", i. he can manually faster in the closing direction be moved, as it provides the damping device actually. In In this case arises in the case of closing smaller housing chamber a large overpressure of the only slightly compressible damping medium. Around the piston-cylinder device or the force-transmitting linkage in this Case to protect against damage, a pressure relief valve is arranged in the piston, which is effective at a certain pressure of the damping medium is and the drainage of the damping medium in the other housing chamber allows.

Ein Ausführungsbeispiel der o.g. DE-OS (dort Figur 1) zeigt eine separate Anordnung von Überströmventil und Überdruckventil im Kolben. Dieses Ausführungsbeispiel ist in der Herstellung zeit- und kostenaufwendig, da in den Kolben mehrere Bohrungen eingebracht werden müssen und die Ventile separat montiert werden.An embodiment of the o.g. DE-OS (FIG. 1 there) shows a separate arrangement of overflow valve and pressure relief valve in the piston. This embodiment is time-consuming and expensive to manufacture, as in the piston several Holes must be introduced and the valves are mounted separately.

Ein weiteres Ausführungsbeispiel der o.g. DE-OS (dort Figur 2) zeigt einen Kolben mit einem stirnseitig am Kolben montierten kappenförmigen Formteil, in welchem ein kombiniertes Ventil (Kombination aus Rückschlagventil und Überdruckventil) angeordnet ist. Auch dieses Ausführungsbeispiel ist in der Herstellung zeitund kostenaufwendig, da die Herstellung und Montage eines separaten Formteils zur Aufnahme des Ventils erforderlich ist und der Kolben für die Montage des Formteils vorbehandelt werden muss (Abdrehen des Kolbens zur Schaffung eines geringeren Querschnitts im Bereich des Formteils, zusätzliche Bohrung zur Verdrehsicherung).Another embodiment of the o.g. DE-OS (FIG. 2 there) shows a piston with a frontally mounted on the piston cap-shaped molding, in which a combined valve (combination of non-return valve and pressure relief valve) is arranged. This embodiment is in the production time and Costly because the manufacture and assembly of a separate molding is required for receiving the valve and the piston for mounting the Must be pretreated molding (twisting the piston to create a smaller cross section in the region of the molded part, additional bore for preventing rotation).

Der Erfindung liegt die Aufgabe zugrunde, einen Türschließer mit Überdruckventil zu schaffen, der einfach und kostengünstig herstellbar ist.The invention is based on the object, a door closer with pressure relief valve to create, which is easy and inexpensive to produce.

Die Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.The object is solved by the features of patent claim 1.

Das als Kombination aus Überströmventil und Überdruckventil ausgebildete Ventil weist einen direkt in einer Kolbenbohrung des Kolbens verschiebbar geführt angeordneten Ventilkörper auf. In den Kolben muss daher nur eine einzige Bohrung zur Aufnahme des Ventils eingebracht werden, und die Innenfläche der Kolbenbohrung wirkt direkt mit dem Ventilkörper und dessen Dichtung zusammen, wodurch zusätzliche Einzelteile eingespart werden; beides senkt die Herstellungskosten deutlich. The designed as a combination of overflow valve and pressure relief valve has a directly slidably guided guided in a piston bore of the piston Valve body on. In the piston therefore only a single hole are introduced for receiving the valve, and the inner surface of the piston bore acts directly on the valve body and its seal together, thereby additional items are saved; both lower the production costs clear.

Das Ventil kann außerhalb des Kolbens komplett vormontiert werden: In den Ventilkörper kann nach Einlegen des Ventilkegels und einer Feder ein Ventileinsatz eingeschoben werden, wobei die Verbindung zwischen Ventileinsatz und Ventilkörper als Rastverbindung ausgebildet sein kann. Auch dies führt zu einer gravierenden Vereinfachung der Montage und somit zu einer weiteren Senkung der Herstellungskosten.The valve can be completely pre-assembled outside the piston: into the valve body can after inserting the valve plug and a spring a valve core be inserted, with the connection between the valve core and valve body can be designed as a latching connection. This too leads to a serious Simplification of assembly and thus to a further reduction of Production costs.

Das vormontierte Ventil kann schließlich auf äußerst einfache Weise, nämlich verrastend in die Kolbenbohrung eingeschoben werden.The pre-assembled valve can finally in a very simple way, namely latching be inserted into the piston bore.

Das Ventil kann außerdem modular aufgebaut sein: Es kann ein einziger, einheitlich ausgebildeter Ventilkörper zur Abdeckung aller Anwendungsfälle vorgesehen sein. In diesen Ventilkörper können verschiedenartige, dem jeweiligen Anwendungsfall angepasste Teile, insbesondere verschiedene Ventileinsätze und/oder verschiedene Federn und/oder verschiedene Ventilkegel, einsetzbar sein. Beispielsweise können die Federn je nach Ansprechdruck des Überdruckventil verschieden lang ausgebildet sein, wobei für jede Federlänge ein passender Ventileinsatz vorgesehen sein kann. Durch diesen modularen Aufbau des Ventils lassen sich die Herstellungskosten, insbesondere Werkzeug- und/oder Lagerhaltungskosten weiter senken.The valve can also be modular: it can be a single, uniform trained valve body provided to cover all applications be. In this valve body can be varied, the particular application adapted parts, in particular different valve inserts and / or different springs and / or different valve cone, be used. For example The springs can be different depending on the response pressure of the pressure relief valve be long, with a suitable valve insert for each spring length can be provided. Leave through this modular construction of the valve the production costs, in particular tool and / or storage costs lower further.

In vorteilhaften Ausgestaltungen können verschiedene Bestandteile des Ventils, z.B. der Ventilkörper, der Ventileinsatz und/oder der Ventilkegel, kostengünstig aus Kunststoff (Spritzguss) gefertigt sein. Selbstverständlich kommen für Ventilkörper und Ventileinsatz auch andere elastische Materialien und für den Ventilkegel wiederum andere Materialien in Betracht.In advantageous embodiments, various components of the valve, e.g. the valve body, the valve core and / or the poppet, cost be made of plastic (injection molding). Of course, come for valve body and valve insert also other elastic materials and for the valve plug again other materials into consideration.

Der Einsatz eines derartigen kombinierten Ventils beschränkt sich nicht auf die vorangehend beschriebene Kombination von Überström- und Überdruckventil. Weitere denkbare Anwendungen eines identisch aufgebauten kombinierten Ventils bestehen beispielsweise in der Kombination eines Überströmventils mit einem Überdruckventil für die Absicherung des Überdrückens der Öffnungsdämpfung oder in der Kombination eines Überströmventils mit einem Schließ- oder Öffnungsdämpfungsventil. The use of such a combined valve is not limited to the previously described combination of overflow and pressure relief valve. Further conceivable applications of an identically constructed combined valve exist for example in the combination of a spill valve with a Pressure relief valve to ensure the overpressing of the opening damping or in the combination of an overflow valve with a closing or opening damping valve.

Weitere vorteilhafte Ausgestaltungsmöglichkeiten der Erfindung sind in der nachfolgenden Beschreibung sowie in den Unteransprüchen beschrieben. Nachfolgend werden Ausführungsbeispiele anhand der Figuren näher erläutert. Dabei zeigen:

Figur 1
einen Längsschnitt eines Türschließers mit einem Kombinationsventil;
Figur 2
eine vergrößerte Darstellung des Kombinationsventils aus Figur 1;
Figur 3
ein abgewandeltes Ausführungsbeispiel eines Kombinationsventils;
Figur 4
eine Stirnansicht eines Kombinationsventils.
Further advantageous embodiments of the invention are described in the following description and in the dependent claims. Embodiments will be explained in more detail with reference to the figures. Showing:
FIG. 1
a longitudinal section of a door closer with a combination valve;
FIG. 2
an enlarged view of the combination valve of Figure 1;
FIG. 3
a modified embodiment of a combination valve;
FIG. 4
an end view of a combination valve.

Der in Figur 1 dargestellte Türschließer 1 weist ein Gehäuse 2 mit einem darin linear verschiebbar geführten Kolben 3 auf. Der Kolben 3 ist in seinem Innenraum mit einer Verzahnung 8 versehen, in welcher das Zahnrad 9 der im Gehäuse 2 des Türschließers 1 drehbar gelagerten Schließerwelle 10 kämmt. Eine als Schraubendruckfeder ausgebildete Schließerfeder 7 ist in der linken Gehäusekammer 6 angeordnet und beaufschlagt ― sich am Gehäuse, z.B. am hier nicht dargestellten linken Gehäuseabschluss abstützend ― den Kolben 3 in die dargestellte rechte Position. Diese Position entspricht der Geschlossenlage des Türflügels, der an die Schließerwelle 10 des Türschließers 1 über ein kraftübertragendes Gestänge, z.B. Scherenarm oder Gleitarm, oder direkt angeschlossen ist.The door closer 1 shown in FIG . 1 has a housing 2 with a piston 3 guided linearly displaceably therein. The piston 3 is provided in its interior with a toothing 8, in which the gear 9 of the housing 2 of the door closer 1 rotatably mounted closer shaft 10 meshes. A closing spring designed as a helical compression spring 7 is arranged in the left housing chamber 6 and acted upon - on the housing, for example on the left housing closure not shown here - supporting the piston 3 in the illustrated right position. This position corresponds to the closed position of the door leaf, which is connected to the closer shaft 10 of the door closer 1 via a force-transmitting linkage, such as scissor arm or sliding arm, or directly.

Wird der Türflügel manuell geöffnet, bewegt sich der Kolben 3 ― betätigt durch die Drehung der Schließerwelle 10 im Uhrzeigersinn ― nach links, wobei die Schließerfeder 7 komprimiert wird. Das aus der linken Gehäusekammer 6 verdrängte Dämpfungsmedium fließt durch die linke Kolbenbohrung 13 in den Kolbeninnenraum 5 und weiter durch das im Bereich der rechten Stirnseite des Kolbens 3 in der rechten Kolbenbohrung 14 angeordnete Ventil 15, dessen Aufbau und Funktionsweise bei den nachfolgenden Figuren ausführlich beschrieben werden, in die rechte Gehäusekammer 4.If the door is opened manually, the piston 3 moves - operated by the Turning the closer shaft 10 clockwise - to the left, with the closing spring 7 is compressed. The displaced from the left housing chamber 6 Damping medium flows through the left piston bore 13 in the piston interior 5 and further through that in the region of the right end side of the piston 3 in the right piston bore 14 arranged valve 15, its structure and operation be described in detail in the following figures, in the right housing chamber 4.

Sobald der Türflügel losgelassen wird, drängt die komprimierte Schließerfeder den Kolben 3 nach rechts; die Schließerwelle 10 wird hierbei entgegen dem Uhrzeigersinn gedreht, so dass der angeschlossene Türflügel in seine Geschlossenlage überführt wird. Da das Ventil 15 bei dem nun in der rechten Gehäusekammer 4 vorhandenen Überdruck geschlossen ist, fließt das Dämpfungsmedium durch einen hier nicht dargestellten Überströmkanal, welcher ein ebenfalls nicht dargestelltes Ventil zur Gewährleistung der Schließdämpfung enthält, gedämpft in die linke Gehäusekammer 6 bzw. in den Kolbeninnenraum 5. Hierdurch wird sichergestellt, dass der Türflügel nicht abrupt schließt, sondern gedämpft in seine Geschlossenlage überführt wird. Wird der Türflügel während des gedämpften Schließvorgangs manuell überdrückt, d.h. wird der Türflügel schneller geschlossen, als es die Schließdämpfung eigentlich vorsieht, so wird das nun unter stärkerem Überdruck stehende Dämpfungsmedium aus der rechten Gehäusekammer 6 durch das Ventil 15 in den Kolbeninnenraum 5 abgeführt. Das Ventil 15 ist so ausgebildet, dass es erst bei einem relativ großen Überdruck in der rechten Gehäusekammer 6, welcher beim manuellen Überdrücken des Türflügels entsteht, öffnet, während es beim normalen gedämpften Schließvorgang des Türflügels geschlossen ist.As soon as the door leaf is released, the compressed closing spring presses the piston 3 to the right; the closer shaft 10 is in this case counterclockwise rotated, leaving the connected door in its closed position is transferred. Since the valve 15 at the now in the right housing chamber 4 existing pressure is closed, flows through the damping medium an overflow channel, not shown here, which is also not shown Valve for ensuring the closing dampening contains steamed in the left housing chamber 6 or in the piston interior 5. This ensures that the door does not close abruptly, but muffled in its closed position is transferred. Will the door wing during the muted Closing operation manually overruled, i. the door is closed faster, as it provides the closing damping actually, it is now under stronger Overpressure standing damping medium from the right housing chamber. 6 discharged through the valve 15 in the piston interior 5. The valve 15 is so formed that it only at a relatively large overpressure in the right housing chamber 6, which arises when manually overpressing the door leaf, opens while it is closed during normal damped closing of the door leaf is.

Figur 2 zeigt einen Ausschnitt des Kolbens 3 im Bereich seiner rechten Stirnseite. Im Kolben ist der Ventilkörper 18 eines als Kombinationsventil ausgebildeten Ventils 15 in einer stirnseitigen Kolbenbohrung 14 angeordnet. Innerhalb des Ventilkörpers 18 ist ein Ventileinsatz 25 angeordnet. Eine im Ventileinsatz 25 abgestützte, als Schraubendruckfeder ausgebildete Feder 27 beaufschlagt einen linear verschiebbaren Ventilkegel 24 gegen eine in der rechten Stirnseite des Ventilkörpers 18 vorhandene Bohrung 23. Der Ventileinsatz 25 weist außerdem an seiner linken Stirnseite eine Bohrung 28 zum Kolbeninnenraum 5 auf. FIG. 2 shows a section of the piston 3 in the region of its right-hand end side. In the piston, the valve body 18 of a valve 15 designed as a combination valve is arranged in a frontal piston bore 14. Within the valve body 18, a valve insert 25 is arranged. A supported in the valve insert 25, designed as a helical compression spring spring 27 acts on a linearly displaceable poppet 24 against a present in the right end of the valve body 18 bore 23. The valve insert 25 also has on its left front side a bore 28 to the piston interior 5.

Der Ventilkörper 18 des Ventils 15 ist innerhalb der Kolbenbohrung 14 linear verschiebbar angeordnet. Die Abbildung zeigt den Ventilkörper 18 in seiner linken Endposition. Eine am Ventilkörper 18 flüssigkeitsdicht befestigte, als Ringdichtung ausgebildete Dichtung 19 liegt in dieser Endposition des Ventilkörpers 18 dicht an einer Senkung 16 der Kolbenbohrung 14 an. Der Ventilkörper 18 nimmt diese Position bei dem beim gedämpften Schließvorgang entstehenden Überdruck des Dämpfungsmediums in der rechten Gehäusekammer 4 ein. Das unter Überdruck stehende Dämpfungsmedium drängt durch die Bohrung 23 des Ventilkörpers 18 gegen den federbeaufschlagten Ventilkegel 24. Beim manuellen Überdrücken des Türflügels in Schließrichtung übersteigt der Überdruck des Dämpfungsmediums die Kraft der Feder 27; der Ventilkegel 24 weicht nach links zurück und gibt die Bohrung 23 zum Durchströmen des Dämpfungsmediums in Richtung der Bohrung 28 im Ventileinsatz 25 und somit zum Kolbeninnenraum 5 frei.The valve body 18 of the valve 15 is linearly displaceable within the piston bore 14 arranged. The figure shows the valve body 18 in its left End position. One attached to the valve body 18 liquid-tight, as a ring seal formed seal 19 is in this end position of the valve body 18 tight a depression 16 of the piston bore 14 at. The valve body 18 takes this position in the case of the damped closing process resulting overpressure of Damping medium in the right housing chamber 4 a. That under pressure standing damping medium urging through the bore 23 of the valve body 18th against the spring-loaded valve cone 24. When manual override of Door leaf in the closing direction exceeds the pressure of the damping medium the force of the spring 27; the poppet 24 gives way to the left and gives the Bore 23 for the passage of the damping medium in the direction of the bore 28 in the valve core 25 and thus the piston interior 5 free.

Bei hoher Federkraft der Feder 27, d.h. bei einem hohen möglichen Überdruck in der rechten Gehäusekammer 4 bis zum Zurückweichen des Ventilkegels 24, kann die Dichtung 19 gegebenenfalls mehr oder weniger komprimiert werden. Um die Dichtung 19 vor übermäßiger Kompression und damit verbundener Beschädigung zu schützen, ist der Ventilkörper 18 so ausgebildet, dass er bei sehr hohem Überdruck in der rechten Gehäusekammer 4 gegen die Senkung 16 der Kolbenbohrung 14 stößt.At high spring force of the spring 27, i. at a high possible overpressure in the right housing chamber 4 to the retraction of the valve cone 24, can the seal 19 may be more or less compressed if necessary. To the Seal 19 from excessive compression and associated damage To protect, the valve body 18 is designed so that it is at very high pressure in the right housing chamber 4 against the countersink 16 of the piston bore 14 pushes.

Um den Ventilkegel 24 und den korrespondierenden Durchströmquerschnitt vor Verunreinigung zu schützen, ist im Ventilkörper 18 eine Filterscheibe 22 angeordnet, welche die im durchströmendenden Dämpfungsmedium gegebenenfalls vorhandenen Fremdkörper aufnimmt.To the valve cone 24 and the corresponding flow area before To protect contamination, a filter disk 22 is arranged in the valve body 18, which optionally present in the flowing-through damping medium Foreign body absorbs.

Nach rechts wird die Verschiebebewegung des Ventilkörpers 18 durch Rastzungen 20 begrenzt, welche in einen Rücksprung 17 der Kolbenbohrung 14 eingreifen. Der Ventilkörper 18 nimmt diese Position bei Überdruck im Kolbeninnenraum 5 ein. Dadurch, dass die Dichtung 19 bei dieser Position des Ventilkörpers 18 nicht mehr in Kontakt mit der Senkung 16 der Kolbenbohrung 14 steht, kann das Dämpfungsmedium vom Kolbeninnenraum 5 durch die in Figur 4 gezeigten Kanäle ungedämpft in die rechte Gehäusekammer 4 strömen. Der an den Türschließer 1 angeschlossene Türflügel kann somit ungedämpft gegen die Kraft der Schließerfeder geöffnet werden.To the right, the sliding movement of the valve body 18 by locking tongues 20 limited, which engage in a recess 17 of the piston bore 14. The valve body 18 takes this position at positive pressure in the piston interior 5 on. Characterized in that the seal 19 in this position of the valve body 18th is no longer in contact with the countersink 16 of the piston bore 14, the Damping medium from the piston interior 5 through the channels shown in Figure 4 flow undamped into the right housing chamber 4. The to the door closer 1 connected door can thus be undamped against the force of the closing spring be opened.

Das in Figur 3 dargestellte Ventil 15 funktioniert identisch wie in dem im vorangehenden Ausführungsbeispiel beschrieben. Abgewandelt gegenüber dem vorangehenden Ausführungsbeispiel ist die Befestigung des Ventileinsatzes 25 im Ventilkörper 18. Der Ventilkörper 18 weist Aussparungen 21 auf, in welche Rastnocken 26 des Ventileinsatzes 25 verrastend eingreifen.The valve 15 shown in Figure 3 works identically as described in the previous embodiment. Modified over the previous embodiment, the attachment of the valve insert 25 in the valve body 18. The valve body 18 has recesses 21, in which latching cam 26 of the valve insert 25 engage latching.

In Figur 4 ist ein Querschnitt durch den Ventilkörper 18 gezeigt. Der im Querschnitt eigentlich runde Ventilkörper 18 weist Abflachungen 29 auf, welche mit der Innenwandung der Kolbenbohrung 14 Kanäle mit einem Durchflussquerschnitt 30 bilden. Diese Kanäle werden vom aus dem Kolbeninnenraum 5 in die rechte Gehäusekammer 4 strömenden Dämpfungsmedium durchflossen. FIG. 4 shows a cross section through the valve body 18. The valve body 18, which is actually round in cross section, has flattenings 29 which form channels with a flow cross section 30 with the inner wall of the piston bore 14. These channels are traversed by flowing from the piston interior 5 in the right housing chamber 4 damping medium.

Liste der ReferenzzeichenList of reference characters

11
Türschließerdoor closers
22
Gehäusecasing
33
Kolbenpiston
44
Gehäusekammerhousing chamber
55
KolbeninnenraumPiston interior
66
Gehäusekammerhousing chamber
77
Schließerfedercloser spring
88th
Verzahnunggearing
99
Zahnradgear
1010
Schließerwellecloser shaft
1111
Überströmventiloverflow
1212
ÜberdruckventilPressure relief valve
1313
Kolbenbohrungpiston bore
1414
Kolbenbohrungpiston bore
1515
VentilValve
1616
Senkungreduction
1717
Rücksprungreturn
1818
Ventilkörpervalve body
1919
Dichtungpoetry
2020
Rastzungecatch tongue
2121
Aussparungrecess
2222
Filterscheibefilter disc
2323
Bohrungdrilling
2424
Ventilkegelshuttle
2525
Ventileinsatzvalve core
2626
Rastnockelocking cam
2727
Federfeather
2828
Bohrung drilling
2929
Abflachungflattening
3030
Querschnittcross-section

Claims (12)

Türschließer (1) zum Schließen eines Türflügels,
mit einem Gehäuse (2), einem in dem Gehäuse (2) linear verschiebbar geführten Kolben (3) und einer hydraulischen Dämpfungseinrichtung,
wobei der Gehäuseinnenraum mit einem Dämpfungsmedium gefüllt ist und
wobei der Gehäuseinnenraum durch den Kolben (3) flüssigkeitsdicht in mindestens zwei Gehäusekammern (4, 6) unterteilt ist und
wobei im Kolben (3) für die Durchströmung durch das Dämpfungsmedium beim Öffnen des Türflügels ein Überströmventil (11) angeordnet ist und
wobei im Kolben (3) ein zusätzliches Überdruckventil (12) angeordnet ist, welches bei einem durch manuelles Überdrücken des Türflügels in Schließrichtung entstehenden Überdruck des Dämpfungsmediums in einer Gehäusekammer (4) wirksam wird, indem das Dämpfungsmedium zusätzlich zu der Dämpfungseinrichtung über das Überdruckventil (12) aus der Gehäusekammer (4) abfließt, und
wobei das Überdruckventil (12) und das Überströmventil (11) zusammengefasst in einem Ventilkörper (18) eines Ventils (15) in einer Kolbenbohrung (14) des Kolbens (3) angeordnet sind, und
wobei der Ventilkörper (18) in der Kolbenbohrung (14) verschiebbar geführt ist, und
wobei der Ventilkörper (18) eine Dichtung (19) aufweist,
dadurch gekennzeichnet, dass die Dichtung (19) des Ventilkörpers (18) direkt mit der Innenfläche der Kolbenbohrung (14) zusammenwirkt, indem die Dichtung (19) den Ventilkörper (18) in einer Endstellung seines Verschiebebereiches flüssigkeitsdicht gegenüber der Innenfläche der Kolbenbohrung (14) abdichtet.
Door closer (1) for closing a door leaf,
with a housing (2), a piston (3) guided in a linearly displaceable manner in the housing (2) and a hydraulic damping device,
wherein the housing interior is filled with a damping medium and
wherein the housing interior is liquid-tightly divided by the piston (3) into at least two housing chambers (4, 6) and
wherein in the piston (3) for the flow through the damping medium when opening the door, an overflow valve (11) is arranged, and
wherein in the piston (3) an additional pressure relief valve (12) is arranged, which is effective in a housing by manually overpressing the door in the closing direction pressure of the damping medium in a housing chamber (4) by the damping medium in addition to the damping device via the pressure relief valve (12 ) flows out of the housing chamber (4), and
wherein the pressure relief valve (12) and the overflow valve (11) are arranged in a valve body (18) of a valve (15) in a piston bore (14) of the piston (3), and
wherein the valve body (18) in the piston bore (14) is displaceably guided, and
the valve body (18) having a seal (19),
characterized in that the seal (19) of the valve body (18) cooperates directly with the inner surface of the piston bore (14) by the seal (19) the valve body (18) in an end position of its displacement range liquid-tight against the inner surface of the piston bore (14) seals.
Türschließer nach Anspruch 1,
dadurch gekennzeichnet, dass die Kolbenbohrung (14) eine Einrichtung zur Begrenzung der Verschiebebewegung des Ventilkörpers (18) aufweist.
Door closer according to claim 1,
characterized in that the piston bore (14) comprises means for limiting the sliding movement of the valve body (18).
Türschließer nach Anspruch 2,
dadurch gekennzeichnet, dass die Kolbenbohrung (14) eine Senkung (16) aufweist.
Door closer according to claim 2,
characterized in that the piston bore (14) has a countersink (16).
Türschließer nach Anspruch 2,
dadurch gekennzeichnet, dass die Kolbenbohrung (14) einen Rücksprung (17) aufweist.
Door closer according to claim 2,
characterized in that the piston bore (14) has a recess (17).
Türschließer nach Anspruch 4,
dadurch gekennzeichnet, dass der Ventilkörper (18) Rastzungen (20) aufweist, welche mit der Kolbenbohrung (14) verrastend zusammenwirken.
Door closer according to claim 4,
characterized in that the valve body (18) has latching tongues (20) which cooperate latching with the piston bore (14).
Türschließer nach Anspruch 1,
dadurch gekennzeichnet, dass der Ventilkörper (18) Abflachungen (29) aufweist, welche mit der Innenwandung des Kolbens (3) Kanäle mit einem Querschnitt (30) bilden, die den Durchfluss des Dämpfungsmediums von einer als Kolbeninnenraum (5) ausgebildeten Gehäusekammer zu einer anderen Gehäusekammer (4) ermöglichen.
Door closer according to claim 1,
characterized in that the valve body (18) has flats (29) which form with the inner wall of the piston (3) channels with a cross section (30), the flow of the damping medium from a piston interior (5) formed housing chamber to another Allow housing chamber (4).
Türschließer nach Anspruch 1,
dadurch gekennzeichnet, dass im Ventilkörper (18) ein Ventileinsatz (25) angeordnet ist, wobei im Ventileinsatz (25) eine Feder (27) angeordnet ist, die sich im Ventileinsatz (25) abstützt und einen Ventilkegel (24) gegen eine Bohrung (23) des Ventilkörpers (18) beaufschlagt, und wobei der Ventileinsatz (25) eine zum Kolbeninnenraum (5) gerichtete Bohrung (28) aufweist.
Door closer according to claim 1,
characterized in that in the valve body (18) a valve insert (25) is arranged, wherein in the valve insert (25) a spring (27) is arranged, which in the valve insert (25) is supported and a valve plug (24) against a bore (23 ) of the valve body (18) acted upon, and wherein the valve insert (25) has a piston interior (5) directed bore (28).
Türschließer nach Anspruch 7,
dadurch gekennzeichnet, dass der Ventileinsatz (25) eine Befestigungseinrichtung zur kraftschlüssigen und flüssigkeitsdichten Befestigung des Ventileinsatzes (25) im Ventilkörper (18) aufweist.
Door closer according to claim 7,
characterized in that the valve insert (25) has a fastening device for non-positive and liquid-tight attachment of the valve core (25) in the valve body (18).
Türschließer nach Anspruch 8,
dadurch gekennzeichnet, dass der Ventileinsatz (25) Rastnocken (26) aufweist, welche mit Aussparungen (21) des Ventilkörpers (18) zusammenwirken.
Door closer according to claim 8,
characterized in that the valve insert (25) locking cams (26) which cooperate with recesses (21) of the valve body (18).
Türschließer nach Anspruch 7,
dadurch gekennzeichnet, dass das Ventil (3) modular aufgebaut ist, indem verschiedene Ventileinsätze (25) und/oder verschiedene Federn (27) und/oder verschiedene Ventilkegel (24) in den einheitlich ausgebildeten Ventilkörper (18) einsetzbar sind.
Door closer according to claim 7,
characterized in that the valve (3) is of modular construction in that different valve inserts (25) and / or different springs (27) and / or different valve cones (24) can be inserted into the uniformly formed valve body (18).
Türschließer nach den Ansprüchen 5 und 10,
dadurch gekennzeichnet, dass das Ventil (3) durch Einschieben des Ventilkörpers (18) in die Kolbenbohrung (14) sowie durch Einschieben des Ventileinsatzes (25) in den Ventilkörper (18) montierbar ist,
wobei die Verbindung zwischen Ventilkörper (18) und Kolbenbohrung (14) sowie zwischen Ventileinsatze (25) und Ventilkörper (18) jeweils als Rastverbindung (16, 20, 21, 26) ausgebildet ist.
Door closer according to claims 5 and 10,
characterized in that the valve (3) can be mounted in the valve body (18) by inserting the valve body (18) into the piston bore (14) and by inserting the valve insert (25),
wherein the connection between valve body (18) and piston bore (14) and between valve insert (25) and valve body (18) in each case as a latching connection (16, 20, 21, 26) is formed.
Türschließer nach Anspruch 1,
dadurch gekennzeichnet, dass der Ventilkörper (18) und der Ventileinsatz (25) jeweils aus elastischem Material ausgebildet sind.
Door closer according to claim 1,
characterized in that the valve body (18) and the valve core (25) are each formed of elastic material.
EP02020109A 2001-09-13 2002-09-07 Door closer Expired - Lifetime EP1293633B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10145200.4A DE10145200B4 (en) 2001-09-13 2001-09-13 door closers
DE10145200 2001-09-13

Publications (3)

Publication Number Publication Date
EP1293633A2 true EP1293633A2 (en) 2003-03-19
EP1293633A3 EP1293633A3 (en) 2006-01-25
EP1293633B1 EP1293633B1 (en) 2008-07-23

Family

ID=7698939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020109A Expired - Lifetime EP1293633B1 (en) 2001-09-13 2002-09-07 Door closer

Country Status (6)

Country Link
EP (1) EP1293633B1 (en)
CN (1) CN1250857C (en)
AT (1) ATE402312T1 (en)
DE (2) DE10145200B4 (en)
ES (1) ES2305165T3 (en)
PT (1) PT1293633E (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1672157A1 (en) 2004-12-08 2006-06-21 Abloy Oy Door closer valve
EP1739264A2 (en) 2005-06-29 2007-01-03 GEZE GmbH Valve for a drive control of a door or window leaf
WO2013072017A1 (en) * 2011-11-14 2013-05-23 Dorma Gmbh + Co. Kg Piston for a door closing device
EP2435652B1 (en) 2009-05-28 2016-08-31 DORMA Deutschland GmbH Valve for a hydraulic door closer
EP2775078A3 (en) * 2013-03-08 2018-02-28 dormakaba Deutschland GmbH Excess pressure valve for a door closing device
GB2577542A (en) * 2018-09-28 2020-04-01 Assa Abloy Ltd Door-closer
EP4053368A1 (en) * 2021-03-01 2022-09-07 dormakaba Deutschland GmbH Door actuator and door unit
EP4357651A1 (en) * 2022-10-17 2024-04-24 GEZE GmbH Overpressure valve for a door drive

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6002070B2 (en) * 2013-03-26 2016-10-05 リョービ株式会社 Door closer
CN103306564B (en) * 2013-06-25 2016-03-02 苏州市富尔达科技股份有限公司 Door closer

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Publication number Priority date Publication date Assignee Title
EP0328917A1 (en) * 1988-02-13 1989-08-23 Gretsch Unitas GmbH Baubeschläge Door closer

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DE2124632A1 (en) * 1971-05-18 1972-11-30 Ver Baubeschlag Gretsch Co Piston sealing ring - esp of polyamide open with overlapping joint
DE2405265A1 (en) * 1974-02-04 1975-08-14 Ver Baubeschlag Gretsch Co Suction valve for door closing mechanism - has housing with guide fingers for ball element
FI62401C (en) * 1976-12-13 1982-12-10 Waertsilae Oy Ab DOERRSTAENGARE
GB2158148B (en) * 1984-04-27 1988-03-02 Jebron Ltd Door closer
DE8526660U1 (en) * 1985-09-18 1987-01-22 Gretsch-Unitas Gmbh Baubeschlaege, 7257 Ditzingen, De
IT1241880B (en) * 1990-07-20 1994-02-01 Mab Masellis S P A DOOR CLOSER WITH INTERNAL, HYDROSTATIC DEVICE FOR LOCKING THE DOOR IN THE OPENING POSITION.
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Publication number Priority date Publication date Assignee Title
EP0328917A1 (en) * 1988-02-13 1989-08-23 Gretsch Unitas GmbH Baubeschläge Door closer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1672157A1 (en) 2004-12-08 2006-06-21 Abloy Oy Door closer valve
US7240603B2 (en) 2004-12-08 2007-07-10 Abloy Oy Valve
EP1739264A2 (en) 2005-06-29 2007-01-03 GEZE GmbH Valve for a drive control of a door or window leaf
EP1739264A3 (en) * 2005-06-29 2008-12-10 GEZE GmbH Valve for a drive control of a door or window leaf
EP2435652B1 (en) 2009-05-28 2016-08-31 DORMA Deutschland GmbH Valve for a hydraulic door closer
WO2013072017A1 (en) * 2011-11-14 2013-05-23 Dorma Gmbh + Co. Kg Piston for a door closing device
EP2775078A3 (en) * 2013-03-08 2018-02-28 dormakaba Deutschland GmbH Excess pressure valve for a door closing device
GB2577542A (en) * 2018-09-28 2020-04-01 Assa Abloy Ltd Door-closer
GB2577542B (en) * 2018-09-28 2021-11-03 Assa Abloy Ltd Door-closer
EP4053368A1 (en) * 2021-03-01 2022-09-07 dormakaba Deutschland GmbH Door actuator and door unit
EP4357651A1 (en) * 2022-10-17 2024-04-24 GEZE GmbH Overpressure valve for a door drive

Also Published As

Publication number Publication date
DE10145200B4 (en) 2015-09-10
EP1293633B1 (en) 2008-07-23
ES2305165T3 (en) 2008-11-01
CN1250857C (en) 2006-04-12
EP1293633A3 (en) 2006-01-25
DE50212527D1 (en) 2008-09-04
ATE402312T1 (en) 2008-08-15
CN1407201A (en) 2003-04-02
PT1293633E (en) 2008-09-15
DE10145200A1 (en) 2003-04-10

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