EP0757742B1 - Automatic door closer and process for mounting the same - Google Patents

Automatic door closer and process for mounting the same Download PDF

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Publication number
EP0757742B1
EP0757742B1 EP96900842A EP96900842A EP0757742B1 EP 0757742 B1 EP0757742 B1 EP 0757742B1 EP 96900842 A EP96900842 A EP 96900842A EP 96900842 A EP96900842 A EP 96900842A EP 0757742 B1 EP0757742 B1 EP 0757742B1
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EP
European Patent Office
Prior art keywords
coupling part
outer part
piston
door closer
automatic door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96900842A
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German (de)
French (fr)
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EP0757742A1 (en
Inventor
Volker Bienek
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.)
Dorma Deutschland GmbH
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Dorma Deutschland GmbH
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Publication date
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Publication of EP0757742A1 publication Critical patent/EP0757742A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers 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
    • E05F3/104—Closers 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 cam-and-slide transmission between driving shaft and piston within the closer housing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • the invention relates to an automatic door closer according to the preamble of claim 1.
  • the inside of the housing in piston dividing two pressure medium spaces is used in the invention
  • Door closer formed from a coupling part and an outer part.
  • the connection between the coupling part and the outer part is direct non-positive and form-fitting as well as free of play with those on the drive axle located power transmission elements connected.
  • GB-2,244,759-A discloses a piston of a door closer which is not directly connected to the axis group. Via a piston pin is made in a generally known manner by penetrating the sealing surfaces the piston is mounted. This type of connection is not outside the housing to accomplish, but must run inside the case become.
  • a door closer with a power-transmitting piston rod can be found in DE-C-163 160. It is a piston surface present, which protrudes from the piston, which leads to the Final drive is far from the piston. This design is the Door closers are extremely large in their external dimensions.
  • EP-0 469 697-A1 shows a door closer in which the piston is screwed directly onto a piston rod. However, it will be here too the force of the final drive, which is located relatively far from the piston is introduced into the piston via the piston rod. This too Working principle would be without the power transmission and thus the door closer lengthening piston rod will not work.
  • the object of the invention is an automatic door closer further training, in which the overall length of the housing is reduced, but at the same time very good hydraulic functions with an increase overall efficiency are guaranteed. Furthermore, too manufacturing costs are reduced at the same time.
  • the subject matter of claim 1 has the advantage that the Damping piston that divides the interior of the housing into two rooms divided, is placed close to the drive axis of the door closer, and thus a direct assembly of a coupling part with a plate carriage can be done.
  • the required inside the piston Space for the coupling flange, which is connected to the bracket with a pin is connected.
  • This pre-assembly is outside the Housing performed and is thus compared to conventional piston rod connections to carry out much faster and cheaper.
  • the connection in the damping piston consists of a Coupling part and an outer part, the outer part over the pre-assembled coupling part after assembly of the entire axle group from the drive axle, the cam, the plates, the bearings and the rollers with the coupling part is inserted.
  • the entire axle group is for final assembly through the housing entry the top of the door closer used, being by a side Entry into the housing, and thus at the same time into the cylinder bore the door closer, the outer part is inserted. It will Outer part inserted over the coupling part, and through a connecting link a non-positive, positive and play-free connection between both parts made.
  • the coupling part is designed so that the connection otherwise present in the outer surface of the piston in Shape of a pin is also used in the coupling part, only covers the outer part, due to its walls, secures and secures this area at the same time the pin connection in the coupling part, so that only by Outer part is sealed within the cylinder wall.
  • the connecting pin as in the prior art, passes through the Outer skin of the piston, i.e. in the area where there is a seal to the cylinder wall is necessary, this pin must be secured.
  • This Securing is usually achieved by caulking.
  • the caulking in the installed state has the disadvantage that not always the necessary precision can be maintained, and thus the efficiency of the automatic door closer is reduced.
  • the housing cover is designed larger must be achieved to caulk the piston with the pin, or if the housing cover is not made larger that an additional Opening is inside the case, which in this case then must also be closed again. Through this additional The bore is weakened, furthermore arise in this If higher production costs and the sealing surfaces are interrupted.
  • connection between the coupling and the outer part various possibilities.
  • One of these possibilities is that on the Coupling part is an approach that is designed so that it in the Outside part finds a guide. At the same time is in the area of this approach there is an internal thread through which when the outer part is attached a connecting link that is secure, non-positive and positive, play-free Connection between the coupling and outer part and at the same time also creates between the axle group.
  • Another type of attachment can e.g. be such that the connecting link connected to the outer part directly outside the housing is or consists of one piece, and this pre-assembled group with the pre-assembled axle group and the coupling part inside of the housing is brought together. In this case, however, it is necessary that the outer part with the link opposite the Axle group is secured with the coupling part.
  • a backup can e.g. by a locking ring or by a nut, i.e. a Screw connection are made.
  • valves are displaced within the complete piston and channels that allow it. So there is a check valve, which with its connecting channel in a so-called ring channel, which is inside the outer part ends. At the same time in the area of the ring channel also a chamfer on the coupling part has been formed, thus defining a defined channel within the piston represents in the assembled state of the same. To drain of the damping medium are still lateral channels on the coupling part has been formed, thus connecting the pressure chamber in the depressurized room.
  • the design of the automatic Door closer can be reduced.
  • the housing is also not through additional holes weakened, the efficiency of a such a door closer is not reduced, on the contrary it will still increased.
  • the complete axle group 1 essentially consists of the drive axle 18, with a cam disc connected to it non-positively and positively 28, the tabs 16, 17 for connecting the pressure roller 27 and the support roller 29 via the pins 22, 23.
  • the drive shaft 18 is thereby stored in the lower area by a bearing 19.
  • the pins 22, 23 and the piston pin 15 are not caulked, because of the design, a backup of these pins can be omitted.
  • the coupling part 15 is designed so that it has a projection 10, in which there is a bore with an internal thread 11. This Internal thread is used to connect the outer part 30 to the coupling part 15 used. There is also a chamfer 12 on the coupling part 15 has been formed, with an existing within the outer part 30 Ring channel 13 cooperates. In the embodiment of the figure 1 are the fluid channels leading from this ring channel 13 to the unpressurized room 31 not shown.
  • the outer part 30 consists essentially of a receptacle 8 for the Coupling part with ring channel 13 connected to it the ring channel 13 is a stepped bore 9, which is the same Has diameter, as the approach 10 of the coupling part 15.
  • the stepped bore 9 is further narrowed to bore 7.
  • the outer part 30 is opened the coupling part 15 is inserted, so the outer part 30 in the area of Stepped bore 9 on the coupling part 15 in the area of the extension 10 guided.
  • the placement of the outer part 30 on the coupling part 15 is a connecting member 3, which has a threaded shoulder 4, in the internal thread 11 of the coupling part 15 screwed.
  • the outer part 30 there is at least one check valve 5, which ends in a channel 6.
  • This channel 6 in turn ends in the Ring channel 13, the one with the chamfer 12 of the coupling part 15 a circumferential Forms channel and has a connection to the depressurized room 31.
  • FIG 3 Another type of connection is shown in Figure 3, in which also the tabs 16, 17 with each other via the coupling part 39 and the piston pin 14 are connected.
  • the coupling part 39 is designed somewhat differently namely, it has an annular channel 36.
  • This ring channel 36 has a connection to the channel 6, which is inside the outer part 33 is located.
  • the complete axis group 1 can also be installed here be pre-assembled outside the housing 20 with the coupling part 39.
  • the outer part 33 has an inner bore in which the connecting member 3 is used outside the housing 20, via the connection 38.
  • the connection 38 can be a screw connection, for example his.
  • This pre-assembled group, consisting of link 3 and Outer part 33 is through the pressure chamber 32 into the housing 20 of the door closer introduced.
  • coupling part 39 is located and outer part 33 one above the other.
  • a direct connection must now be made between the inserted through the open area of the housing cover 21 Axle group 1 with the coupling part 39 and the preassembled connecting link 3 with the outer part 33.
  • This can e.g. through a Circlip 35, which is within a groove 34, which is in the Outer part 33 is made possible.
  • the circlip 35 can also be selected a screw connection, which is a force and positive connection between the coupling part and the outer part ensures.
  • Figure 2 shows the assembled Parts.
  • axis group 1 is outside the housing 20 has been pre-assembled. This axis group 1 will then then into the housing 20 through the opening, which later is closed by the housing cover 21 is used.
  • the outer part 30 by the not yet with the compression spring and the damping medium filled pressure space 32 via the coupling part 15 set.
  • the connector 3 screwed into the coupling part 15, which at the same time a backlash-free, non-positive and positive connection between interior and outer part ensures.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Automatic Assembly (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Lock And Its Accessories (AREA)
  • Refrigerator Housings (AREA)
  • Seal Device For Vehicle (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

An automatic door closer has a piston assembly dividing a housing into two pressure medium chambers. The piston assembly is moveable by a cam roller in camming engagement with a cam that rotates during an opening or closing movement of a door. The piston assembly includes two parts, a coupling part and an outer part. The coupling part provides for connection to the cam roller and the outer part seals one pressure medium chamber from the other pressure medium chamber. The coupling part and the outer part are connected firmly together by a connecting element.

Description

Die Erfindung betrifft einen selbsttätigen Türschließer gemäß dem Oberbegriff des Patentanspruches 1. Der den Innenraum des Gehäuses in zwei Druckmittelräume aufteilende Kolben wird bei dem erfindungsgemäßen Türschließer aus einem Kupplungsteil und einem Außenteil gebildet. Die Verbindung zwischen dem Kupplungsteil und dem Außenteil wird direkt kraft- und formschlüssig sowie spielfrei mit den an der Antriebsachse befindlichen Kraftübertragungselementen verbunden.The invention relates to an automatic door closer according to the preamble of claim 1. The inside of the housing in piston dividing two pressure medium spaces is used in the invention Door closer formed from a coupling part and an outer part. The connection between the coupling part and the outer part is direct non-positive and form-fitting as well as free of play with those on the drive axle located power transmission elements connected.

Ein selbsttätiger Türschließer der vorgenannten Art ist aus der DE-A-34 11 189.1 bekannt geworden. Bei diesem Türschließer ist die Schließerwelle mit einer Hubkurvenscheibe kraft- und formschlüssig verbunden, wobei diese gleichzeitig mit einem sogenannten längsverschiebbaren Laschenwagen in Verbindung steht. Durch die Verdrehung der Schließerwelle wird damit der Laschenwagen aus seiner ursprünglichen Lage herausgebracht, was gleichzeitig auch eine Verschiebung der an dem Laschenwagen befestigten Kolbenstange mit sich bringt. Die Kolbenstange durchsetzt dabei die Druckfeder, welche im freien Endbereich der Kolbenstange gegen einen mit dieser durch einen Kolbenbolzen gekuppelten Kolben anliegt. Der Kolben ist mit einer zusätzlichen Dichtung versehen und in einer Zylinderbohrung des Gehäuses verschiebbar. Zwischen der Verschlußkappe und dem Kolben liegt ein aufgrund der Türbewegung sich ändernder Druckraum zur Dämpfungsregelung. Zur sicheren Abdichtung des Kolbens mit der Zylinderwandung ist eine zusätzliche Dichtung am Kolben angebracht worden.An automatic door closer of the aforementioned type is from DE-A-34 11 189.1 became known. The closer shaft is in this door closer non-positively and positively connected with a cam disc, this at the same time with a so-called longitudinally movable tab carriage communicates. By turning the closer shaft the cart is brought out of its original position, which is at the same time a shift in the on the tab truck attached piston rod brings with it. The piston rod penetrates the compression spring in the free end area of the piston rod against one coupled with this by a piston pin Piston abuts. The piston is provided with an additional seal and slidable in a cylinder bore of the housing. Between the Cap and the piston is due to the door movement changing pressure chamber for damping control. For secure sealing the piston with the cylinder wall is an additional seal attached to the piston.

In der GB-2,244,759-A wird ein Kolben eines Türschließers offenbart, der nicht unmittelbar mit der Achsgruppe verbunden ist. Über einen Kolbenstift wird auf allgemein bekannte Art unter Durchdringung der Dichtflächen der Kolben montiert. Diese Verbindungsart ist nicht außerhalb des Gehäuses zu bewerkstelligen, sondern muß innerhalb des Gehäuses ausgeführt werden. GB-2,244,759-A discloses a piston of a door closer which is not directly connected to the axis group. Via a piston pin is made in a generally known manner by penetrating the sealing surfaces the piston is mounted. This type of connection is not outside the housing to accomplish, but must run inside the case become.

Einen Türschließer, der mit einer kraftübertragenden Kolbenstange versehen ist, ist der DE-C-163 160 zu entnehmen. Es ist eine Kolbenfläche vorhanden, die aus dem Kolben herausragt, was dazu führt, daß der Achsantrieb weit vom Kolben entfernt liegt. Durch diese Bauart ist der Türschließer in seinen äußeren Abmaßen enorm groß.A door closer with a power-transmitting piston rod can be found in DE-C-163 160. It is a piston surface present, which protrudes from the piston, which leads to the Final drive is far from the piston. This design is the Door closers are extremely large in their external dimensions.

Die EP-0 469 697-A1 gibt einen Türschließer wieder, bei dem der Kolben direkt auf eine Kolbenstange geschraubt wird. Es wird jedoch auch hier die Kraft des Achsantriebes, der relativ weit vom Kolben entfernt angeordnet ist, über die Kolbenstange in den Kolben eingeleitet. Auch dieses Wirkprinzip würde ohne die kraftübertragende und damit den Türschließer verlängernde Kolbenstange nicht funktionieren.EP-0 469 697-A1 shows a door closer in which the piston is screwed directly onto a piston rod. However, it will be here too the force of the final drive, which is located relatively far from the piston is introduced into the piston via the piston rod. This too Working principle would be without the power transmission and thus the door closer lengthening piston rod will not work.

Die Aufgabe der Erfindung besteht darin, einen selbsttätigen Türschließer weiter auszubilden, bei dem die Baulänge des Gehäuses reduziert ist, aber gleichzeitig sehr gute hydraulische Funktionen mit einer Steigerung des Gesamtwirkungsgrades gewährleistet sind. Ferner sollen auch gleichzeitig die Herstellkosten reduziert werden.The object of the invention is an automatic door closer further training, in which the overall length of the housing is reduced, but at the same time very good hydraulic functions with an increase overall efficiency are guaranteed. Furthermore, too manufacturing costs are reduced at the same time.

Gelöst wird diese Aufgabe mit den im kennzeichnenden Teil des Patentanspruches 1 angegebenen Merkmalen.This problem is solved with the in the characterizing part of the claim 1 specified characteristics.

Der Gegenstand des Patentanspruches 1 weist den Vorteil auf, daß der Dämpfungskolben, der den Innenraum des Gehäuses in zwei Räume aufteilt, nahe an die Antriebsachse des Türschließers gelegt wird, und damit eine direkte Montage eines Kupplungsteiles mit einem Laschenwagen erfolgen kann. Dazu wird im Inneren des Kolbens der erforderliche Raum für den Kupplungsflansch, der über einen Stift mit dem Laschenwagen verbunden ist, vorgesehen. Diese Vormontage wird außerhalb des Gehäuses durchgeführt und ist somit im Vergleich zu üblichen Kolbenstangenverbindungen wesentlich schneller und kostengünstiger durchzuführen. Der Aufbau der Verbindung im Dämpfungskolben besteht aus einem Kupplungsteil und einem Außenteil, wobei das Außenteil über das vormontierte Kupplungsteil nach Montage der gesamten Achsgruppe, die aus der Antriebsachse, der Hubkurvenscheibe, den Laschen, der Lagerung und den Rollen mit dem Kupplungsteil besteht, gesteckt wird. Die gesamte Achsgruppe wird zur Endmontage durch den Gehäuseeintritt an der Oberseite des Türschließers eingesetzt, wobei durch einen seitlichen Eintritt in das Gehäuse, und damit auch gleichzeitig in die Zylinderbohrung des Türschließers, das Außenteil eingeführt wird. Dabei wird das Außenteil über das Kupplungsteil gesteckt, und durch ein Verbindungsglied eine kraft- und formschlüssige und auch spielfreie Verbindung zwischen beiden Teilen hergestellt. Das Kupplungsteil ist so gestaltet, daß die sonst in der Außenfläche des Kolbens vorhandene Verbindung in Form eines Stiftes auch bei dem Kupplungsteil verwandt wird, nur deckt das Außenteil aufgrund seiner Wandungen diesen Bereich ab und sichert gleichzeitig die Stiftverbindung im Kupplungsteil, so daß allein durch das Außenteil eine Abdichtung innerhalb der Zylinderwandung gegeben ist. Tritt der Verbindungsstift, wie es beim Stand der Technik ist, durch die Außenhaut des Kolbens, d.h. in den Bereich, wo eine Abdichtung zur Zylinderwand notwendig ist, so muß dieser Stift gesichert werden. Dieses Sichern wird in der Regel durch Verstemmen erreicht. Das Verstemmen im eingebauten Zustand hat allerdings den Nachteil, daß hier nicht immer die notwendige Präzision eingehalten werden kann, und damit der Wirkungsgrad des selbsttätigen Türschließers herabgesetzt wird. Des weiteren ist es so, daß entweder der Gehäusedeckel größer ausgelegt werden muß, um ein Verstemmen des Kolbens mit dem Stift zu erreichen, bzw. wenn der Gehäusedeckel nicht größer ausgeführt wird, daß eine zusätzliche Öffnung sich innerhalb des Gehäuses befindet, die in diesem Falle dann auch wieder zusätzlich verschlossen werden muß. Durch diese zusätzliche Bohrung wird das Gehäuse geschwächt, ferner entstehen in diesem Falle höhere Fertigungskosten und die Dichtflächen sind unterbrochen.The subject matter of claim 1 has the advantage that the Damping piston that divides the interior of the housing into two rooms divided, is placed close to the drive axis of the door closer, and thus a direct assembly of a coupling part with a plate carriage can be done. For this, the required inside the piston Space for the coupling flange, which is connected to the bracket with a pin is connected. This pre-assembly is outside the Housing performed and is thus compared to conventional piston rod connections to carry out much faster and cheaper. The connection in the damping piston consists of a Coupling part and an outer part, the outer part over the pre-assembled coupling part after assembly of the entire axle group from the drive axle, the cam, the plates, the bearings and the rollers with the coupling part is inserted. The entire axle group is for final assembly through the housing entry the top of the door closer used, being by a side Entry into the housing, and thus at the same time into the cylinder bore the door closer, the outer part is inserted. It will Outer part inserted over the coupling part, and through a connecting link a non-positive, positive and play-free connection between both parts made. The coupling part is designed so that the connection otherwise present in the outer surface of the piston in Shape of a pin is also used in the coupling part, only covers the outer part, due to its walls, secures and secures this area at the same time the pin connection in the coupling part, so that only by Outer part is sealed within the cylinder wall. If the connecting pin, as in the prior art, passes through the Outer skin of the piston, i.e. in the area where there is a seal to the cylinder wall is necessary, this pin must be secured. This Securing is usually achieved by caulking. The caulking in the installed state, however, has the disadvantage that not always the necessary precision can be maintained, and thus the efficiency of the automatic door closer is reduced. Furthermore it is the case that either the housing cover is designed larger must be achieved to caulk the piston with the pin, or if the housing cover is not made larger that an additional Opening is inside the case, which in this case then must also be closed again. Through this additional The bore is weakened, furthermore arise in this If higher production costs and the sealing surfaces are interrupted.

Durch die Trennung des Dämpfungskolbens in ein sogenanntes Kupplungsteil und ein Außenteil werden die zum Stand der Technik zählenden Nachteile eliminiert, da bereits in der Vormontage das Kupplungsteil mit den Laschen der Achsgruppe durch einen Stift verbunden wird. Dieser Stift braucht nicht verstemmt werden, was einen sicheren Sitz garantiert, da der Sitz des Stiftes ebenso wie der Kupplungsteil von dem Außenteil überkront wird. Durch diese Überkronung entfällt die Sicherung des Verbindungsstiftes, darüber hinaus ist es sichergestellt, daß im Bereich der aufeinander laufenden Flächen des Dämpfungskolbens und der ihn umgebenden Zylinderwandung keine die Abdichtung herabsetzenden Einbrüche bzw. Bohrungen vorhanden sind.By separating the damping piston into a so-called coupling part and an outer part become the state of the art Disadvantages eliminated, since the coupling part is already in the pre-assembly the plates of the axle group are connected by a pin. This Pen does not need to be caulked, which guarantees a secure fit, because the seat of the pin as well as the coupling part from the outer part is topped. This crowning eliminates the need to secure the connecting pin, In addition, it is ensured that in the area of surfaces of the damping piston and the surrounding surfaces running on one another Cylinder wall no dips that reduce the seal or holes are available.

Zur Verbindung des Kupplungs- und des Außenteils untereinander gibt es verschiedenste Möglichkeiten. Eine dieser Möglichkeiten ist, daß an dem Kupplungsteil ein Ansatz vorhanden ist, der so gestaltet ist, daß er in dem Außenteil eine Führung findet. Gleichzeitig ist im Bereich dieses Ansatzes ein Innengewinde vorhanden, durch welches bei aufgesetztem Außenteil ein Verbindungsglied die sichere, kraft- und formschlüssige, spielfreie Verbindung zwischen dem Kupplungs- und Außenteil und gleichzeitig auch damit zwischen der Achsgruppe herstellt.There are connections between the coupling and the outer part various possibilities. One of these possibilities is that on the Coupling part is an approach that is designed so that it in the Outside part finds a guide. At the same time is in the area of this approach there is an internal thread through which when the outer part is attached a connecting link that is secure, non-positive and positive, play-free Connection between the coupling and outer part and at the same time also creates between the axle group.

Eine weitere Befestigungsart kann z.B. dergestalt sein, daß das Verbindungsglied direkt außerhalb des Gehäuses mit dem Außenteil verbunden wird oder aus einem Stück besteht, und diese vormontierte Gruppe mit der bereits vormontierten Achsgruppe und dem Kupplungsteil innerhalb des Gehäuses zusammengebracht wird. In diesem Falle ist es jedoch notwendig, daß das Außenteil mit dem Verbindungsglied gegenüber der Achsgruppe mit dem Kupplungsteil gesichert wird. Eine solche Sicherung kann z.B. durch einen Sicherungsring oder durch eine Mutter, d.h. eine Schraubverbindung hergestellt werden.Another type of attachment can e.g. be such that the connecting link connected to the outer part directly outside the housing is or consists of one piece, and this pre-assembled group with the pre-assembled axle group and the coupling part inside of the housing is brought together. In this case, however, it is necessary that the outer part with the link opposite the Axle group is secured with the coupling part. Such a backup can e.g. by a locking ring or by a nut, i.e. a Screw connection are made.

Zum sicheren und kontrollierten Abströmen des Dämpfungsmediums, welches sich innerhalb des Gehäuses befindet, und aufgrund der Längsbewegung des Kolbens von dem einen in den anderen Druckmittelraum verdrängt wird, befinden sich innerhalb des kompletten Kolbens Ventile und Kanäle, die dieses zulassen. So ist ein Rückschlagventil vorhanden, welches mit seinem anschließenden Kanal in einem sogenannten Ringkanal, der sich innerhalb des Außenteils befindet, endet. Gleichzeitig ist in dem Bereich des Ringkanales auch an dem Kupplungsteil eine Fase angeformt worden, die somit einen definierten Kanal innerhalb des Kolbens im zusammengebauten Zustand desselben darstellt. Zum Abfließen des Dämpfungsmediums sind weiterhin seitliche Kanäle an den Kupplungsteil angeformt worden, die damit die Verbindung von dem Druckraum in den drucklosen Raum herstellen. For safe and controlled drainage of the damping medium, which is inside the housing, and due to the longitudinal movement of the piston from one to the other pressure medium chamber valves are displaced within the complete piston and channels that allow it. So there is a check valve, which with its connecting channel in a so-called ring channel, which is inside the outer part ends. At the same time in the area of the ring channel also a chamfer on the coupling part has been formed, thus defining a defined channel within the piston represents in the assembled state of the same. To drain of the damping medium are still lateral channels on the coupling part has been formed, thus connecting the pressure chamber in the depressurized room.

Durch die vorbeschriebene Ausgestaltung des erfindungsgemäßen Gedankens, nämlich des zweigeteilten Kolbens und eine in seinem Inneren vorhandene Verbindungsmöglichkeit, kann die Bauform des selbsttätigen Türschließers verringert werden. Das Gehäuse wird ferner nicht durch zusätzliche Bohrungen geschwächt, ebenfalls wird der Wirkungsgrad eines solchen Türschließers nicht verringert, im Gegenteil er wird sogar noch gesteigert.Due to the above-described design of the idea according to the invention, namely the two-part piston and one inside existing connection possibility, the design of the automatic Door closer can be reduced. The housing is also not through additional holes weakened, the efficiency of a such a door closer is not reduced, on the contrary it will still increased.

Das Montageverfahren eines solchen selbsttätigen Türschließers kann z.B. dergestalt ablaufen, daß die Teile der Achsgruppe, die sich im drucklosen Raum befinden, komplett außerhalb des Gehäuses vormontiert werden können. Dieses bedeutet eine präzise Ausführung der Arbeiten, denn es wird dann diese vormontierte Achsgruppe in das Gehäuse des Türschließers eingesetzt, und zwar durch den noch nicht verschlossenen Bereich des Gehäusedeckels. Im Anschluß daran wird von der Zylinderseite des Gehäuses, die ebenfalls später durch eine Verschlußkappe verschraubt wird, das Außenteil auf das Kupplungsteil gesteckt. Im Anschluß daran wird das Verbindungsglied mit dem Kupplungsteil kraft- und formschlüssig verbunden, was auch gleichzeitig eine kraft- und formschlüssige Verbindung des Außenteils mit sich bringt. Im Anschluß daran wird die Druckfeder, d.h. der Kraftspeicher in das Gehäuse eingesetzt.The assembly process of such an automatic door closer can e.g. run in such a way that the parts of the axle group, which are in the depressurized space, completely pre-assembled outside the housing can be. This means a precise execution of the work, because it is then this pre-assembled axle group in the housing of the door closer used, namely by the not yet closed Area of the housing cover. Following this is from the cylinder side of the housing, which is also later replaced by a cap is screwed, the outer part is placed on the coupling part. in the Following this, the connecting element with the coupling part is and positively connected, which is also a non-positive and positive Connection of the outer part brings with it. After that the compression spring, i.e. the lift mechanism is inserted into the housing.

Die Erfindung wird anhand von zwei möglichen Ausführungsbeispielen näher erläutert. Es zeigt:

Figur 1:
Montierte Achsgruppe mit Kupplungsteil, aber noch nicht mit montiertem Außenteil und Verbindungsglied
Figur 2:
Längsschnitt durch ein Schließergehäuse mit montierter Achsgruppe, Kolben und Verbindungsglied
Figur 3:
Schnittzeichnung einer Kolbenverbindung
The invention is explained in more detail using two possible exemplary embodiments. It shows:
Figure 1:
Assembled axle group with coupling part, but not yet with assembled outer part and connecting link
Figure 2:
Longitudinal section through a closer housing with an assembled axle group, piston and connecting link
Figure 3:
Sectional drawing of a piston connection

Die komplette Achsgruppe 1 besteht im wesentlichen aus der Antriebsachse 18, mit daran kraft- und formschlüssig angeschlossener Hubkurvenscheibe 28, den Laschen 16, 17 zur Verbindung der Druckrolle 27 und der Stützrolle 29 über die Stifte 22, 23. Die Antriebsachse 18 wird dabei im unteren Bereich durch ein Lager 19 gelagert. Gleichzeitig ist mit den Laschen 16, 17 ein Kupplungsteil 15 für die Dämpfungseinrichtung des selbsttätigen Türschließers über einen Kolbenstift 14 mit den Laschen 16, 17 verbunden. Die Stifte 22, 23 sowie der Kolbenstift 15 sind nicht verstemmt, weil aufgrund der Konstruktionsart eine Sicherung dieser Stifte entfallen kann.The complete axle group 1 essentially consists of the drive axle 18, with a cam disc connected to it non-positively and positively 28, the tabs 16, 17 for connecting the pressure roller 27 and the support roller 29 via the pins 22, 23. The drive shaft 18 is thereby stored in the lower area by a bearing 19. At the same time with the Tabs 16, 17 a coupling part 15 for the damping device of the automatic door closer via a piston pin 14 with the tabs 16, 17 connected. The pins 22, 23 and the piston pin 15 are not caulked, because of the design, a backup of these pins can be omitted.

Das Kupplungsteil 15 ist dabei so gestaltet, daß es einen Ansatz 10 hat, in welchem eine Bohrung mit einem Innengewinde 11 vorhanden ist. Dieses Innengewinde wird zur Verbindung des Außenteils 30 mit dem Kupplungsteil 15 verwendet. An dem Kupplungsteil 15 ist ferner eine Fase 12 angeformt worden, die mit einem innerhalb des Außenteils 30 vorhandenen Ringkanal 13 zusammenwirkt. In dem Ausführungsbeispiel der Figur 1 sind die von diesem Ringkanal 13 abgehenden Strömungsmittelkanäle zum drucklosen Raum 31 nicht dargestellt.The coupling part 15 is designed so that it has a projection 10, in which there is a bore with an internal thread 11. This Internal thread is used to connect the outer part 30 to the coupling part 15 used. There is also a chamfer 12 on the coupling part 15 has been formed, with an existing within the outer part 30 Ring channel 13 cooperates. In the embodiment of the figure 1 are the fluid channels leading from this ring channel 13 to the unpressurized room 31 not shown.

Das Außenteil 30 besteht im wesentlichen aus einer Aufnahme 8 für das Kupplungsteil mit daran anschließendem Ringkanal 13. Im Anschluß an den Ringkanal 13 befindet sich eine Stufenbohrung 9, die den gleichen Durchmesser hat, wie der Ansatz 10 des Kupplungsteils 15. Die Stufenbohrung 9 wird weiter verengt zur Bohrung 7. Wird das Außenteil 30 auf das Kupplungsteil 15 gesteckt, so wird das Außenteil 30 im Bereich der Stufenbohrung 9 auf dem Kupplungsteil 15 im Bereich des Ansatzes 10 geführt. Zur kraft- und formschlüssigen Verbindung wird im Anschluß an das Aufsetzen des Außenteils 30 auf das Kupplungsteil 15 ein Verbindungsglied 3, welches einen Gewindeansatz 4 hat, in das Innengewinde 11 des Kupplungsteils 15 geschraubt. Im eingeschraubten Zustand wird ein Ansatz 24 des Verbindungsgliedes 3 gegen die Kolbenfläche 25 des Außenteils 30 geschraubt. Hierdurch entsteht neben der kraft- und formschlüssigen Verbindung auch eine spielfreie.The outer part 30 consists essentially of a receptacle 8 for the Coupling part with ring channel 13 connected to it the ring channel 13 is a stepped bore 9, which is the same Has diameter, as the approach 10 of the coupling part 15. The stepped bore 9 is further narrowed to bore 7. The outer part 30 is opened the coupling part 15 is inserted, so the outer part 30 in the area of Stepped bore 9 on the coupling part 15 in the area of the extension 10 guided. For a positive and positive connection, the following is used the placement of the outer part 30 on the coupling part 15 is a connecting member 3, which has a threaded shoulder 4, in the internal thread 11 of the coupling part 15 screwed. When screwed in an approach 24 of the connecting member 3 against the piston surface 25 of the Screwed outer part 30. This creates in addition to the non-positive and positive Connection also a backlash-free.

In dem Außenteil 30 befindet sich mindestens ein Rückschlagventil 5, welches in einem Kanal 6 endet. Dieser Kanal 6 endet seinerseits in dem Ringkanal 13, der mit der Fase 12 des Kupplungsteils 15 einen umlaufenden Kanal bildet und eine Verbindung zum drucklosen Raum 31 hat. In the outer part 30 there is at least one check valve 5, which ends in a channel 6. This channel 6 in turn ends in the Ring channel 13, the one with the chamfer 12 of the coupling part 15 a circumferential Forms channel and has a connection to the depressurized room 31.

Durch diese Art kann ein Abfließen des Dämpfungsmediums von dem Druckraum 32 in den drucklosen Raum 31 erfolgen.In this way, the damping medium can flow away from the Pressure space 32 take place in the unpressurized space 31.

Eine andere Verbindungsart zeigt die Figur 3, bei der ebenfalls die Laschen 16, 17 über das Kupplungsteil 39 und den Kolbenstift 14 untereinander verbunden sind. Das Kupplungsteil 39 ist etwas anders gestaltet worden, es weist nämlich einen Ringkanal 36 auf. Dieser Ringkanal 36 hat eine Verbindung zu dem Kanal 6, der sich innerhalb des Außenteils 33 befindet. Zur Montage kann hier ebenfalls die komplette Achsgruppe 1 außerhalb des Gehäuses 20 mit dem Kupplungsteil 39 vormontiert werden.Another type of connection is shown in Figure 3, in which also the tabs 16, 17 with each other via the coupling part 39 and the piston pin 14 are connected. The coupling part 39 is designed somewhat differently namely, it has an annular channel 36. This ring channel 36 has a connection to the channel 6, which is inside the outer part 33 is located. The complete axis group 1 can also be installed here be pre-assembled outside the housing 20 with the coupling part 39.

Das Außenteil 33 hat eine Innenbohrung, in der das Verbindungsglied 3 außerhalb des Gehäuses 20 eingesetzt wird, und zwar über die Verbindung 38. Die Verbindung 38 kann beispielsweise eine Schraubverbindung sein. Diese vormontierte Gruppe, bestehend aus Verbindungsglied 3 und Außenteil 33, wird durch den Druckraum 32 in das Gehäuse 20 des Türschließers eingeführt. Bei korrektem Sitz liegen dann Kupplungsteil 39 und Außenteil 33 übereinander. Eine direkte Verbindung muß nun zwischen der durch den offenen Bereich des Gehäusedeckels 21 eingesetzte Achsgruppe 1 mit dem Kupplungsteil 39 und dem vormontierten Verbindungsglied 3 mit dem Außenteil 33 erfolgen. Dieses kann z.B. durch einen Sicherungsring 35, der sich innerhalb einer Nut 34, die sich in dem Außenteil 33 befindet, ermöglicht werden. Statt des Sicherungsringes 35 kann auch eine Schraubverbindung gewählt werden, die eine kraft- und formschlüssige Verbindung zwischen dem Kupplungsteil und dem Außenteil sicherstellt.The outer part 33 has an inner bore in which the connecting member 3 is used outside the housing 20, via the connection 38. The connection 38 can be a screw connection, for example his. This pre-assembled group, consisting of link 3 and Outer part 33 is through the pressure chamber 32 into the housing 20 of the door closer introduced. When seated correctly, coupling part 39 is located and outer part 33 one above the other. A direct connection must now be made between the inserted through the open area of the housing cover 21 Axle group 1 with the coupling part 39 and the preassembled connecting link 3 with the outer part 33. This can e.g. through a Circlip 35, which is within a groove 34, which is in the Outer part 33 is made possible. Instead of the circlip 35 can also be selected a screw connection, which is a force and positive connection between the coupling part and the outer part ensures.

Zur Montage des selbsttätigen Türschließers zeigt die Figur 2 die montierten Teile. Dabei ist die Achsgruppe 1, wie bereits vorbeschrieben, außerhalb des Gehäuses 20 vormontiert worden. Diese Achsgruppe 1 wird dann anschließend in das Gehäuse 20 durch die Öffnung, welche später durch den Gehäusedeckel 21 verschlossen wird, eingesetzt. Im Anschluß daran wird das Außenteil 30 durch den noch nicht mit der Druckfeder und dem Dämpfungsmedium ausgefüllten Druckraum 32 über das Kupplungsteil 15 gesetzt. Im Anschluß daran wird ebenfalls durch den Druckraum 32 das Verbindungsglied 3 in den Kupplungsteil 15 geschraubt, was gleichzeitig eine spielfreie, kraft- und formschlüssige Verbindung zwischen Innen- und Außenteil sicherstellt.To assemble the automatic door closer, Figure 2 shows the assembled Parts. As already described, axis group 1 is outside the housing 20 has been pre-assembled. This axis group 1 will then then into the housing 20 through the opening, which later is closed by the housing cover 21 is used. In connection it is the outer part 30 by the not yet with the compression spring and the damping medium filled pressure space 32 via the coupling part 15 set. Following this is also through the pressure chamber 32nd the connector 3 screwed into the coupling part 15, which at the same time a backlash-free, non-positive and positive connection between interior and outer part ensures.

Durch diese Art der Montage werden die Montagezeiten drastisch herabgesetzt, wobei gleichzeitig eine wesentlich höhere Qualität erzielt wird. Ebenfalls ist durch diese komplett in den Kolben 2 integrierte Verbindung bestehend aus Kupplungsteil 15 bzw. 39 und Außenteil 30 bzw. 33 die Dichtfläche nicht mit Durchbrüchen irgendwelcher Art versehen, was zu einer Verbesserung der Kolbenwirkung und zu einer Reduzierung von Verschleiß beiträgt. This type of assembly drastically reduces assembly times, whereby at the same time a much higher quality is achieved. This connection is also completely integrated in the piston 2 consisting of coupling part 15 or 39 and outer part 30 or 33 the Sealing surface not provided with openings of any kind, which leads to an improvement in the piston effect and a reduction in Wear contributes.

BezugszeichenReference numerals

11
komplette Achsgruppecomplete axle group
22nd
Kolben komplettComplete piston
33rd
VerbindungsgliedConnecting link
44th
GewindeansatzThread approach
55
Rückschlagventilcheck valve
66
Kanalchannel
77
Bohrungdrilling
88th
Aufnahme für KupplungsteilHolder for coupling part
99
StufenbohrungStepped bore
1010th
Ansatzapproach
1111
Innengewindeinner thread
1212th
Fasechamfer
1313
RingkanalRing channel
1414
KolbenstiftPiston pin
1515
KupplungsteilCoupling part
1616
LascheTab
1717th
LascheTab
1818th
AntriebsachseDrive axle
1919th
Lagercamp
2020th
Gehäusecasing
2121
GehäusedeckelHousing cover
2222
Stiftpen
2323
Stiftpen
2424th
Ansatzapproach
2525th
KolbenflächePiston area
2626
Bohrungdrilling
2727
DruckrollePressure roller
2828
HubkurvenscheibeCam disc
2929
StützrolleSupport roller
3030th
AußenteilOuter part
3131
druckloser Raumunpressurized space
3232
DruckraumPressure room
3333
AußenteilOuter part
3434
Nut Groove
3535
SicherungsringCirclip
3636
RingkanalRing channel
3737
Kanalchannel
3838
Verbindungconnection
3939
KupplungsteilCoupling part
4040
DichtflächeSealing surface

Claims (5)

  1. An automatic door closer having a closer shaft (18) which is adapted to be coupled to a door leaf and which is rotatable in both directions from a closed position, and inside a housing (20) engages via a cam disc (28) positively between rollers (27, 29) of a longitudinally movable axle group (1) which is subject to the action of a spring assembly forming an energy storage means and of the piston (2) of a hydraulic clamping device, wherein the interior of the door closer housing (20) is subdivided into two pressure medium chambers (31, 32) separated by the piston, said pressure medium chambers being interconnected for escape of the pressure medium from the pressure chamber (31), the size of which reduces on closing of the door, and through a non-return valve (5) disposed in the piston (2) and also opening on the opening movement of the door leaf, characterised by the following features:
    in that the piston (2) consists of a coupling part (15; 39) and an outer part (30; 33), wherein the coupling part (15; 39) is received in the outer part (30; 33) and connected to the coupling part non-positively, positively and so as to be backlash-free,
    in that the coupling part (15; 39) is connected to the axle group (1) via a piston pin (14);
    in that the non-return valve (5) is provided in the outer part (30) and has a connecting duct (6) which terminates in an annular duct (13) extending inside the outer part (30),
    in that the coupling part (15) has a peripheral chamfer (12) which coincides with the annular duct (13), and
    in that at least one duct to the pressureless chamber (31) is provided from the annular duct (13).
  2. An automatic door closer according to claim 1, characterised in that the coupling part (15) has a neck (10) with a bore thereon with an internal screwthread (11) into which a connecting member (3) is connected by its screwthreaded neck (4) through and to the outer part (30).
  3. An automatic door closer according to claim 1, characterised in that the coupling part (39) has an annular duct (36) with a connecting duct (37).
  4. An automatic door closer according to claim 1, characterised in that the outer part (33) has an internal groove (34) to receive a locking ring (35).
  5. An automatic door closer according to claim 1, characterised in that the outer part (33) is connected to a connecting member (3) by a connection (38).
EP96900842A 1995-02-23 1996-01-24 Automatic door closer and process for mounting the same Expired - Lifetime EP0757742B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19506355A DE19506355C2 (en) 1995-02-23 1995-02-23 Automatic door closer
DE19506355 1995-02-23
PCT/DE1996/000095 WO1996026344A1 (en) 1995-02-23 1996-01-24 Automatic door closer and process for mounting the same

Publications (2)

Publication Number Publication Date
EP0757742A1 EP0757742A1 (en) 1997-02-12
EP0757742B1 true EP0757742B1 (en) 2000-05-17

Family

ID=7754867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96900842A Expired - Lifetime EP0757742B1 (en) 1995-02-23 1996-01-24 Automatic door closer and process for mounting the same

Country Status (13)

Country Link
US (1) US5832561A (en)
EP (1) EP0757742B1 (en)
AT (1) ATE193086T1 (en)
AU (1) AU4481096A (en)
BR (1) BR9605812A (en)
CZ (1) CZ292164B6 (en)
DE (2) DE19506355C2 (en)
ES (1) ES2097107T3 (en)
GR (2) GR970300006T1 (en)
PT (1) PT757742E (en)
SK (1) SK284483B6 (en)
TW (1) TW304216B (en)
WO (1) WO1996026344A1 (en)

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US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint

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US6675535B2 (en) 2000-12-22 2004-01-13 Richard Armstrong Remote control door operating and coupling assembly
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DE102004061627B4 (en) * 2004-12-17 2007-02-01 Dorma Gmbh + Co. Kg door closers
DE102006038110B4 (en) * 2006-08-14 2014-03-13 Dorma Gmbh + Co. Kg door closers
CN101135217B (en) * 2006-09-01 2012-11-14 多玛两合有限公司 Floor door closer
BRPI0810505B1 (en) 2007-04-24 2018-08-07 Yale Security Inc. DOOR LOCK SET
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US8547046B2 (en) 2010-04-16 2013-10-01 Yale Security Inc. Door closer with self-powered control unit
US8564235B2 (en) 2010-04-16 2013-10-22 Yale Security Inc. Self-adjusting door closer
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WO2012150481A1 (en) * 2011-05-04 2012-11-08 Ol.Mi S.R.L. Hinge
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US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
US9121217B1 (en) 2001-07-13 2015-09-01 Steven M. Hoffberg Intelligent door restraint

Also Published As

Publication number Publication date
TW304216B (en) 1997-05-01
GR3033849T3 (en) 2000-10-31
BR9605812A (en) 1997-08-12
EP0757742A1 (en) 1997-02-12
ES2097107T3 (en) 2000-07-01
DE19506355A1 (en) 1996-09-05
PT757742E (en) 2000-08-31
DE59605225D1 (en) 2000-06-21
DE19506355C2 (en) 1997-01-16
ES2097107T1 (en) 1997-04-01
SK284483B6 (en) 2005-04-01
GR970300006T1 (en) 1997-04-30
ATE193086T1 (en) 2000-06-15
CZ307696A3 (en) 1997-10-15
WO1996026344A1 (en) 1996-08-29
SK135096A3 (en) 1998-02-04
AU4481096A (en) 1996-09-11
CZ292164B6 (en) 2003-08-13
US5832561A (en) 1998-11-10

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