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EP0756663B1 - Door closer - Google Patents

Door closer Download PDF

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Publication number
EP0756663B1
EP0756663B1 EP96900843A EP96900843A EP0756663B1 EP 0756663 B1 EP0756663 B1 EP 0756663B1 EP 96900843 A EP96900843 A EP 96900843A EP 96900843 A EP96900843 A EP 96900843A EP 0756663 B1 EP0756663 B1 EP 0756663B1
Authority
EP
European Patent Office
Prior art keywords
compression spring
housing
door closer
spring
adjustment
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
EP96900843A
Other languages
German (de)
French (fr)
Other versions
EP0756663A1 (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
Original Assignee
Dorma Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dorma Deutschland GmbH filed Critical Dorma Deutschland GmbH
Publication of EP0756663A1 publication Critical patent/EP0756663A1/en
Application granted granted Critical
Publication of EP0756663B1 publication Critical patent/EP0756663B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/499—Spring tensioners; Tension sensors
    • 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 a door closer according to the preamble of the claim 1.
  • a generic door closer with a single-strand arrangement of hydraulic damping and compression spring is from US-A-43 49 939 known. Since the hydraulics are connected in length, there is an access to the compression spring from outside for the purpose of spring force adjustment not possible.
  • a universal door closer has become known from DE-AS 25 35 244.
  • An energy store is in the form of a housing a compression spring.
  • This compression spring is supported on one end Swing arm and an associated role, with the other end is supported against a closure in the outer wall of the housing.
  • By compressing the Compression spring is next to the increased pressure of the damping medium further additional pressure on the cover of the housing exerted by the compression spring.
  • Another door closer with adjustable closing force is the DE-PS 32 24 300 can be seen.
  • the structure of this door closer is analogous to that DE-OS 25 35 244 to see, is also here with the door open total pressure additionally on the end cover of the door closer housing.
  • the spring force adjustment is made possible by an externally accessible Adjustment device realized via a thread.
  • a further adjustability of the spring force is also possible in the form that this cannot be changed in the assembled state, but right during assembly according to the size of the door closer must be set.
  • This is particularly the patent literature DE-PS 10 36 711, US 3,838,477, US 4,064,589 and AU 491,835.
  • the compression springs thereby become one that passes through them Guide and power transmission element or force support element guided, an adjusting device at one end of this guide means that allows the spring force to be adjusted continuously.
  • the one for closing the connected door beyond The necessary damping piston is located next to the one shown Force storage or flanged as an additional element in US 4,064,589 outside the space that the compression spring occupies.
  • GB 2,244,759 A discloses a door closer in which a spring adjustment is possible from outside the spring. As a result, that the outer dimensions of the door closer become larger because of the Adjustment sleeve is behind the spring of the door closer.
  • the object of the invention is a door closer with small geometric Housing dimensions, but also with a very high efficiency, to create, while at the same time the closing force from the outside is accessible adjustable, and the pressure distributions on the housing walls be reduced and optimized.
  • the object of the invention is achieved in that the compression spring on the one hand supports and the spring force adjustment on the other side forms the counter bearing.
  • the spring force adjustment is located here inside the spring in a spring adjusting sleeve that is not a fixed one Connection, d. H. there is only a positive connection with which has adjustment device lying outside the housing.
  • the spring adjustment lies within the pressure chamber.
  • the entire adjustment device goes with the opening of the connected door leaf, d. H. by the chosen one Construction, namely pistons with a compression spring inside the piston pulled. Due to the power transmission element there is a pull on the piston when the door is opened. hereby there is a straight guidance of the piston, which causes a tilting of the Piston, which is in a relatively close distance to the drive axis with the located cam disc in connection to the compression spring has been avoided.
  • the spring force adjustment is realized in that a device has been created by an adjusting sleeve that is inside of the space surrounded by the compression spring, implemented becomes.
  • This adjusting sleeve has a cavity, in the bottom of which a connection between the power transmission elements, namely the plate carriage and the connector is made.
  • the spring force is adjusted at the same time, which for the one hand Assembly can be carried out directly when not installed can, or in the installed state is realized such that within the spring adjustment sleeve is a cavity in which one in the The locking cap of the adjustment device is immersed.
  • the power transmission between the driver of the Adjustment device and the adjustment sleeve is achieved by positive locking.
  • This can be, for example, a hexagon or any other geometrical one Be shape, in particular the shape of the driver accordingly is worked into the opening of the adjusting sleeve.
  • FIG. 2 essentially shows a sectional view seen from above the arrangement of a compression spring 1, a piston 19 and one Stroke cam 17 within a housing 18.
  • the cam disc 17 On a drive axle 24 of the door closer, the cam disc 17 is force and positively arranged by a pressure roller 30 and a support roller 28, which are fastened in a tab carriage 31, are guided.
  • the piston 19 is also fastened to the plate carriage 31.
  • This link 20 is immersed in the interior of the compression spring 1, and is thus completely enclosed by it.
  • the compression spring 1 is placed inside the housing 18 so that they are approximately at the middle of the housing on a projection 21 with a intermediate support disc 4 supports one end, the other free end is directed against a support plate 6.
  • Through the Support disc 6 is passed through an adjusting sleeve 2, which is also in protrudes the interior of the compression spring 1.
  • the adjustment sleeve 2 is like this constructed that it has a projecting collar 5, which is on
  • the adjusting sleeve 2 is further designed so that in its inner area a cavity 8 is present.
  • a Breakthrough 11 formed, one corresponding to the driver 12th designed geometric form for a positive connection between makes the driver 12 and the adjusting sleeve 2 possible. It dives the driver 12 corresponding to the direction of movement 16 through the Breakthrough 11 in the cavity 8 of the adjusting sleeve 2. simultaneously but the driver 12 is also surrounded by the compression spring 1, so that the driver 12 is placed in the interior of the compression spring 1. This ensures that the door closer is not enlarged by the adjustment mechanism given is.
  • the breakthrough 11 is of the geometric Dimensions kept a little smaller, so that the driver 12 quasi only in Area of the breakthrough 11 a positive connection with the Adjustment sleeve 2 is received.
  • the driver 12 within the cap 3 via a Seal 25 and placed over a lock washer 26 for securing.
  • the end of the driver 12 protruding from the sealing cap 3, namely the adjusting screw 13 is with an appropriate tool accessible.
  • the cap 3 is a thread 14 in the housing 18 screwed in.
  • a seal is achieved by the seal 15.
  • the driver 12 is complete housed inside the adjusting sleeve 2.
  • the driver 12 is provided with a hexagon, which means that the same shape of the hexagon is also present in the opening 11 is.
  • any other shape here which is able to adjust the corresponding forces Transfer compression spring 1 when actuating the adjusting screw 13.
  • the compression spring 1 is in the decompressed State shown.
  • the driver 12 completely immersed in the cavity 8 within the adjusting sleeve 2 is, in contrast to the prior art, in which the driver lie behind the adjustment device and thus an extension of the Door closer result.
  • the entire adjustment screw 23 is also moved when the drive shaft 24 is actuated, i. H. it is pulled, which is at the same time a better guide for the piston 19 (damping device). Because of this type of construction it becomes clear that additional pressure forces on the closure cap 3 not be exercised, as is the case with the known prior art is. The entire pressure distribution is aimed at a very narrow space been around the middle of the case. By this way The construction allows the geometric dimensions of the housing to keep within very narrow limits. Also, there is no additional seal an otherwise normally available piston rod is necessary, since the entire device of the subject of the invention Spring adjustment device is located within the pressure chamber. By this measure becomes the efficiency of such a door closer are much higher than those previously known in the art Door closers. Further advantages of the invention are essential shorter overall length of the door closer with simultaneously smaller dimensions of the housing. The spring force can be easily adjusted, while at the same time ensuring that a twist of the piston and thus possibly tilting and lowering the desired efficiency is not given.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Lock And Its Accessories (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

A door closer with an adjustable springiness has an adjusting screw located inside the pressure chamber and at the same time inside the pressure spring.

Description

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

Ein gattungsgemäßer Türschließer mit einer einsträngigen Anordnung von hydraulischer Dämpfung und Druckfeder ist aus der US-A-43 49 939 bekannt. Da die Hydraulik in der Länge nachgeschaltet ist, ist ein Zugang zur Druckfeder von außen zwecks Federkraftverstellung nicht möglich.A generic door closer with a single-strand arrangement of hydraulic damping and compression spring is from US-A-43 49 939 known. Since the hydraulics are connected in length, there is an access to the compression spring from outside for the purpose of spring force adjustment not possible.

Ein Universaltürschließer ist aus der DE-AS 25 35 244 bekannt geworden. lnnerhalb eines Gehäuses befindet sich ein Kraftspeicher in Form einer Druckfeder. Diese Druckfeder stützt sich einerends an einer Schwinge und einer damit verbundenen Rolle ab, wobei das andere Ende gegen einen Verschluss in der Außenwand des Gehäuses abgestützt ist. Innerhalb des Verschlusses befindet sich darüber hinaus eine Federkraftverstellung, die von außen zugänglich ist. Über die Federkraftverstellung ist eine stufenlose Einstellung der Federkraft des Federspeichers zu realisieren. Wird die Antriebsachse des Türschließers aufgrund der angeschlossenen Tür verdreht, so wird sich gleichzeitig aufgrund der mit der Antriebsachse kraft- und formschlüssig verbundenen Nockenscheibe eine Komprimierung der Druckfeder einstellen. Durch die Komprimierung der Druckfeder wird neben dem erhöhten Druck des Dämpfungsmediums ein weiterer zusätzlicher Druck auf den Verschlussdeckel des Gehäuses durch die Druckfeder ausgeübt.A universal door closer has become known from DE-AS 25 35 244. An energy store is in the form of a housing a compression spring. This compression spring is supported on one end Swing arm and an associated role, with the other end is supported against a closure in the outer wall of the housing. There is also a spring force adjustment inside the closure, which is accessible from the outside. Via the spring force adjustment the spring force of the spring mechanism can be continuously adjusted. Is the drive axis of the door closer due to the connected Twisted door, it will at the same time due to the Drive shaft a non-positively and positively connected cam disc Set compression of the compression spring. By compressing the Compression spring is next to the increased pressure of the damping medium further additional pressure on the cover of the housing exerted by the compression spring.

Ein weiterer Türschließer mit einstellbarer Schließkraft ist der DE-PS 32 24 300 zu entnehmen. Der Aufbau dieses Türschließers ist analog der DE-OS 25 35 244 zu sehen, ebenfalls liegt hier bei geöffneter Tür der gesamte Druck zusätzlich auf dem Abschlussdeckel des Türschließergehäuses. Die Federkraftverstellung wird durch eine von außen zugängliche, über ein Gewinde realisierte Verstellvorrichtung ermöglicht.Another door closer with adjustable closing force is the DE-PS 32 24 300 can be seen. The structure of this door closer is analogous to that DE-OS 25 35 244 to see, is also here with the door open total pressure additionally on the end cover of the door closer housing. The spring force adjustment is made possible by an externally accessible Adjustment device realized via a thread.

Eine weitere Verstellbarkeit der Federkraft ist auch in der Form möglich, dass diese nicht im montierten Zustand verändert werden kann, sondern gleich während der Montage entsprechend der Größe des Türschließers eingestellt werden muss. Dieses ist insbesondere der Patentliteratur DE-PS 10 36 711, US 3,838,477, US 4,064,589 und AU 491,835 zu entnehmen. Die Druckfedern werden hierdurch ein durch sie hindurchgehendes Führungs- und Kraftübertragungselement bzw. Kraftabstützungselement geführt, wobei an einem Ende dieses Führungsmittels sich eine Verstellvorrichtung befindet, die es zulässt, die Federkraft stufenlos einzustellen. Der für den Schließvorgang der angeschlossenen Tür darüber hinaus notwendige Dämpfungskolben befindet sich neben den dargestellten Kraftspeichern bzw. bei der US 4,064,589 als Zusatzelement angeflanscht außerhalb des Raumes, den die Druckfeder einnimmt.A further adjustability of the spring force is also possible in the form that this cannot be changed in the assembled state, but right during assembly according to the size of the door closer must be set. This is particularly the patent literature DE-PS 10 36 711, US 3,838,477, US 4,064,589 and AU 491,835. The compression springs thereby become one that passes through them Guide and power transmission element or force support element guided, an adjusting device at one end of this guide means that allows the spring force to be adjusted continuously. The one for closing the connected door beyond The necessary damping piston is located next to the one shown Force storage or flanged as an additional element in US 4,064,589 outside the space that the compression spring occupies.

In der GB 2,244,759 A wird ein Türschließer offenbart, bei dem eine Federverstellung von außerhalb der Feder möglich ist. Dieses hat zur Folge, dass die Außenabmessungen des Türschließers größer werden, weil die Verstellhülse hinter der Feder des Türschließers liegt.GB 2,244,759 A discloses a door closer in which a spring adjustment is possible from outside the spring. As a result, that the outer dimensions of the door closer become larger because of the Adjustment sleeve is behind the spring of the door closer.

Alle zum Stand der Technik zählenden Türschließer sind in ihren geometrischen Abmaßen sehr groß, da die Dämpfungseinrichtung nicht unmittelbar mit der Druckfeder gekoppelt bzw. verbunden ist. Ferner wird es aufgrund der gewählten Konstruktionsarten notwendig, dass das Gehäuse, insbesondere im Bereich der Verschlusskappen entsprechend überdimensioniert werden muss, um die großen auftretenden Kräfte sicher zu beherrschen.All door closers belonging to the state of the art are geometrical Dimensions very large because the damping device is not immediate is coupled or connected to the compression spring. Furthermore, it is due of the selected types of construction necessary that the housing, Correspondingly oversized, particularly in the area of the sealing caps must be mastered in order to safely master the large forces that occur.

Die Aufgabe der Erfindung ist es, einen Türschließer mit kleinen geometrischen Gehäuseabmessungen, jedoch auch mit einem sehr hohen Wirkungsgrad, zu schaffen, bei dem gleichzeitig die Schließkraft von außen zugänglich einstellbar ist, und die Druckverteilungen auf die Gehäusewände reduziert und optimiert werden.The object of the invention is a door closer with small geometric Housing dimensions, but also with a very high efficiency, to create, while at the same time the closing force from the outside is accessible adjustable, and the pressure distributions on the housing walls be reduced and optimized.

Die Aufgabe der Erfindung wird dadurch gelöst, dass sich die Druckfeder innerhalb des Gehäuses zum einen abstützt und die Federkraftverstellung auf der anderen Seite das Gegenlager bildet. Dabei liegt die Federkraftverstellung innerhalb der Feder in einer Federstellhülse, die keine feste Verbindung, d. h. es liegt nur eine formschlüssige Verbindung vor, mit der außerhalb des Gehäuses liegenden Einstellvorrichtung hat. Die Federverstellung liegt innerhalb des Druckraumes. Die gesamte Verstellvorrichtung geht bei Öffnung des angeschlossenen Türflügels mit, d. h. durch die gewählte Konstruktion, nämlich Kolben mit darinliegender Druckfeder, wird der Kolben gezogen. Aufgrund des ausgeführten Kraftübertragungselementes liegt beim Öffnen der Tür am Kolben eine Zugkraft an. Hierdurch ergibt sich eine gerade Führung des Kolbens, was eine Verkantung des Kolbens, der in relativ engem Abstand zur Antriebsachse mit der daran befindlichen Hubkurvenscheibe im Anschluss an die Druckfeder gelegt worden ist, vermeidet.The object of the invention is achieved in that the compression spring on the one hand supports and the spring force adjustment on the other side forms the counter bearing. The spring force adjustment is located here inside the spring in a spring adjusting sleeve that is not a fixed one Connection, d. H. there is only a positive connection with which has adjustment device lying outside the housing. The spring adjustment lies within the pressure chamber. The entire adjustment device goes with the opening of the connected door leaf, d. H. by the chosen one Construction, namely pistons with a compression spring inside the piston pulled. Due to the power transmission element there is a pull on the piston when the door is opened. hereby there is a straight guidance of the piston, which causes a tilting of the Piston, which is in a relatively close distance to the drive axis with the located cam disc in connection to the compression spring has been avoided.

Durch diese Anordnung ist die Druckverteilung der Druckfeder auf engstem Raume, nämlich zwischen die Antriebsachse und die Gehäuseabstützung verlagert worden, was gleichzeitig bedeutet, dass auf die für den Einbau der Druckfeder notwendige Verschlusskappe, mit der darin befindlichen Verstellvorrichtung, nicht die zusätzlichen hohen Drücke der Druckfeder auftreten, weil der Kraftangriff nach außen gelegt worden ist, und damit über die durch die Feder hindurchführenden Kraftübertragungselemente eine Zugbeanspruchung am Kolben, von der Antriebsachse aus gesehen, möglich ist. Dieses bedeutet ferner, dass keine zusätzlichen Abdichtungen der Verbindungsglieder zwischen der Hubkurvenscheibe mit ihrem Laschenwagen und andererseits mit der Federverstellung notwendig sind. Diese Art der Anordnung garantiert einen sehr hohen Wirkungsgrad, weil eine äußerst präzise Führung des Kolbens gegeben ist, und dadurch zusätzliche Reibungskräfte durch Verkanten vermieden werden.With this arrangement, the pressure distribution of the compression spring is at its narrowest Spaces, namely between the drive axle and the housing support has been relocated, which means at the same time that for the Installation of the compression spring necessary cap, with the one located in it Adjusting device, not the additional high pressures of the Compression spring occur because the force application has been placed outside and thus via the force transmission elements passing through the spring a tensile load on the piston from the drive axle seen from, is possible. This also means that no additional Seals of the connecting links between the cam disc with her tab carriage and on the other hand with the spring adjustment are necessary. This kind of arrangement guarantees you a lot high efficiency because of the extremely precise guidance of the piston is, thereby avoiding additional frictional forces due to tilting become.

Die Federkraftverstellung wird dahingehend realisiert, dass eine Vorrichtung geschaffen worden ist, die durch eine Einstellhülse, die sich innerhalb des von der Druckfeder umgebenen Raumes befindet, umgesetzt wird. Diese Einstellhülse hat einen Hohlraum, in dessen Grund eine Verbindung zwischen den Kraftübertragungsgliedern, nämlich dem Laschenwagen und dem Verbindungsglied hergestellt wird. Über diese Verbindung wird die Federkraft gleichzeitig eingestellt, was zum einen für die Montage direkt im nicht eingebauten Zustand vorgenommen werden kann, bzw. im eingebauten Zustand derart realisiert wird, dass sich innerhalb der Federverstellhülse ein Hohlraum befindet, in welchen eine in der Verschlusskappe gelagerte Verstellvorrichtung eintaucht. Durch das komplette Eintauchen der Verstelleinrichtung in die Federverstellhülse, also in den Federinnenraum, wird eine enorme Reduzierung der Baulänge des Türschließers erreicht. Die Kraftübertragung zwischen dem Mitnehmer der Verstellvorrichtung und der Einstellhülse wird durch Formschluss erreicht. Dieses kann beispielsweise ein Sechskant oder auch jede andere geometrische Form sein, wobei insbesondere die Form des Mitnehmers entsprechend in den Durchbruch der Einstellhülse eingearbeitet wird. Dieses zeigt, dass keine feste Verbindung zwischen dem Einstellorgan, welches von außen zugänglich ist und der innerhalb des Druckraumes befindlichen Federkraftverstellung gegeben ist. Gleichzeitig kann jedoch durch Betätigung der Einstellvorrichtung von außen die Federkraft verändert werden, ohne hier eine Beeinträchtigung des Arbeitsablaufes des Türschließers herbeizuführen.The spring force adjustment is realized in that a device has been created by an adjusting sleeve that is inside of the space surrounded by the compression spring, implemented becomes. This adjusting sleeve has a cavity, in the bottom of which a connection between the power transmission elements, namely the plate carriage and the connector is made. About this connection the spring force is adjusted at the same time, which for the one hand Assembly can be carried out directly when not installed can, or in the installed state is realized such that within the spring adjustment sleeve is a cavity in which one in the The locking cap of the adjustment device is immersed. Through the complete Immersion of the adjustment device in the spring adjustment sleeve, ie in the spring interior, an enormous reduction in the overall length of the Door closer reached. The power transmission between the driver of the Adjustment device and the adjustment sleeve is achieved by positive locking. This can be, for example, a hexagon or any other geometrical one Be shape, in particular the shape of the driver accordingly is worked into the opening of the adjusting sleeve. This shows that there is no fixed connection between the adjusting member, which is accessible from the outside and inside the pressure room Spring force adjustment is given. At the same time, however, by Operation of the adjusting device changes the spring force from the outside without impairing the workflow of the door closer bring about.

Die Erfindung wird anhand eines schematisch dargestellten möglichen Ausführungsbeispieles näher erläutert. Es zeigt:

Figur 1:
Einzelteile der Federkraftverstellung
Figur 2:
Türschließer im Schnitt mit inkomprimierter Druckfeder
Figur 3:
Türschließer im Schnitt mit komprimierter Druckfeder.
The invention is explained in more detail with reference to a schematically illustrated possible embodiment. It shows:
Figure 1:
Individual parts of the spring force adjustment
Figure 2:
Door closer on average with compressed compression spring
Figure 3:
Door closer in section with compressed compression spring.

Die Figur 2 zeigt in einer Schnittdarstellung von oben gesehen im wesentlichen die Anordnung einer Druckfeder 1, eines Kolbens 19 und einer Hubkurvenscheibe 17 innerhalb eines Gehäuses 18. Auf einer Antriebsachse 24 des Türschließers ist die Hubkurvenscheibe 17 kraft- und formschlüssig angeordnet, die von einer Druckrolle 30 und einer Stützrolle 28, die in einem Laschenwagen 31 befestigt sind, geführt werden. Gleichzeitig ist an dem Laschenwagen 31 auch der Kolben 19 befestigt. Im Anschluss an den Kolben 19 ist ein Verbindungsglied 20 zur Aufnahme einer Verstellschraube 23 vorhanden. Dieses Verbindungsglied 20 taucht in den Innenraum der Druckfeder 1 ein, und wird somit ganz von ihr umschlossen. Die Druckfeder 1 ist innerhalb des Gehäuses 18 so plaziert, dass sie sich etwa zur Gehäusemitte an einem Vorsprung 21 mit einer dazwischen befindlichen Stützscheibe 4 einerends abstützt, wobei das andere freie Ende gegen eine Stützscheibe 6 gerichtet ist. Durch die Stützscheibe 6 ist eine Einstellhülse 2 hindurchgeführt, die ebenfalls in den Innenraum der Druckfeder 1 hineinragt. Die Einstellhülse 2 ist so konstruiert, dass sie einen vorspringenden Kragen 5 hat, der sich an der Stützscheibe 6 abstützt.FIG. 2 essentially shows a sectional view seen from above the arrangement of a compression spring 1, a piston 19 and one Stroke cam 17 within a housing 18. On a drive axle 24 of the door closer, the cam disc 17 is force and positively arranged by a pressure roller 30 and a support roller 28, which are fastened in a tab carriage 31, are guided. At the same time, the piston 19 is also fastened to the plate carriage 31. Following the piston 19 is a connecting member 20 for receiving an adjusting screw 23 available. This link 20 is immersed in the interior of the compression spring 1, and is thus completely enclosed by it. The compression spring 1 is placed inside the housing 18 so that they are approximately at the middle of the housing on a projection 21 with a intermediate support disc 4 supports one end, the other free end is directed against a support plate 6. Through the Support disc 6 is passed through an adjusting sleeve 2, which is also in protrudes the interior of the compression spring 1. The adjustment sleeve 2 is like this constructed that it has a projecting collar 5, which is on the Support disc 6 supports.

Die Einstellhülse 2 ist weiter so ausgebildet, dass in ihrem inneren Bereich ein Hohlraum 8 vorhanden ist. Im Bereich des Kragens 5 ist ein Durchbruch 11 ausgebildet, der eine entsprechend dem Mitnehmer 12 gestaltete geometrische Form zur formschlüssigen Verbindung zwischen dem Mitnehmer 12 und der Einstellhülse 2 möglich macht. Dabei taucht der Mitnehmer 12 entsprechend der Bewegungsrichtung 16 durch den Durchbruch 11 in den Hohlraum 8 der Einstellhülse 2 ein. Gleichzeitig wird aber auch der Mitnehmer 12 von der Druckfeder 1 umgeben, so dass in dem Innenraum der Druckfeder 1 der Mitnehmer 12 plaziert ist. Dieses bewirkt, dass keine Vergrößerung des Türschließers durch den Verstellmechanismus gegeben ist. Der Durchbruch 11 ist von den geometrischen Abmaßen etwas kleiner gehalten, so dass quasi der Mitnehmer 12 nur im Bereich des Durchbruches 11 eine formschlüssige Verbindung mit der Einstellhülse 2 eingeht.The adjusting sleeve 2 is further designed so that in its inner area a cavity 8 is present. In the area of the collar 5 is a Breakthrough 11 formed, one corresponding to the driver 12th designed geometric form for a positive connection between makes the driver 12 and the adjusting sleeve 2 possible. It dives the driver 12 corresponding to the direction of movement 16 through the Breakthrough 11 in the cavity 8 of the adjusting sleeve 2. simultaneously but the driver 12 is also surrounded by the compression spring 1, so that the driver 12 is placed in the interior of the compression spring 1. This ensures that the door closer is not enlarged by the adjustment mechanism given is. The breakthrough 11 is of the geometric Dimensions kept a little smaller, so that the driver 12 quasi only in Area of the breakthrough 11 a positive connection with the Adjustment sleeve 2 is received.

Im Boden 9 der Einstellhülse 2 befindet sich ein Gewinde 10, welches zur Federkraftverstellung in Verbindung mit der Verstellschraube 23 durch Betätigung des Gewindes eine Federkraftverstellung herbeiführt. Dabei ist die Verstellschraube 23 vorzugsweise mit dem Verbindungsglied 20 in kraft- und formschlüssigem Eingriff. Ein Gegenlager und damit Anschlag zum unbeabsichtigten Herausdrehen der Federkraftverstellung 23 bildet die Sicherungsscheibe 22. Diese legt sich im entspannten Zustand der Federkraftverstellung gegen den Boden 9 der Einstellhülse 2. In Figur 3 wird deutlich gemacht, wie der Federverstellweg 32 zur Federverstellung und damit entsprechenden Krafteinstellung ausgenutzt werden kann. In diesem Ausführungsbeispiel ist der maximal mögliche Federeinstellweg 32 ausgenutzt worden.In the bottom 9 of the adjusting sleeve 2 there is a thread 10, which for Spring force adjustment in connection with the adjusting screw 23 Actuation of the thread brings about a spring force adjustment. It is the adjusting screw 23 preferably with the connecting member 20 in non-positive and positive engagement. A counter bearing and thus a stop for unintentionally unscrewing the spring force adjustment 23 the locking washer 22. This lies down in the relaxed state of the Spring force adjustment against the bottom 9 of the adjusting sleeve 2. In FIG. 3 is made clear how the Federverstellweg 32 for spring adjustment and thus appropriate force setting can be used. In this embodiment is the maximum possible spring adjustment 32 have been exploited.

Durch die Betätigung der Antriebswelle 24 mit der daran nicht dargestellten angeschlossenen Tür wird ein Verschwenken der Hubkurvenscheibe 17 bewirkt. Gleichzeitig wird auch der Kolben 19 innerhalb der Zylinderwandung 29 in die Betätigungsrichtung 27 seinen Hub ausüben.By actuating the drive shaft 24 with the one not shown thereon connected door is a pivoting of the cam disc 17 causes. At the same time, the piston 19 is within the cylinder wall 29 exert its stroke in the actuating direction 27.

Um die Federkraftverstellung auch im eingebauten Zustand verändern zu können, ist der Mitnehmer 12 innerhalb der Verschlusskappe 3 über eine Dichtung 25 und zur Sicherung über eine Sicherungsscheibe 26 plaziert. Das aus der Verschlusskappe 3 herausragende Ende des Mitnehmers 12, nämlich die Verstellschraube 13 ist mit einem entsprechenden Werkzeug zugänglich. Die Verschlusskappe 3 wird über ein Gewinde 14 in das Gehäuse 18 eingeschraubt. Eine Abdichtung wird durch die Dichtung 15 erreicht. Beim Einsetzen der Verschlusskappe 3 wird gleichzeitig der vorstehende Mitnehmer 12 in die Einstellhülse durch den Durchbruch 11 hindurch so eingeführt, dass keinerlei über den Mitnehmerquerschnitt hinausgehende Vergrößerungen vorhanden sind. Der Mitnehmer 12 ist vollständig im Inneren der Einstellhülse 2 untergebracht. Im Ausführungsbeispiel ist der Mitnehmer 12 mit einem Sechskant versehen, was bedeutet, dass auch in dem Durchbruch 11 die gleiche Form des Sechskantes vorhanden ist. Es ist jedoch auch denkbar, hier jede andere Form einzusetzen, die in der Lage ist, die entsprechenden Kräfte zur Verstellung der Druckfeder 1 bei Betätigung der Verstellschraube 13 zu übertragen.To change the spring force adjustment even when installed can, the driver 12 within the cap 3 via a Seal 25 and placed over a lock washer 26 for securing. The end of the driver 12 protruding from the sealing cap 3, namely the adjusting screw 13 is with an appropriate tool accessible. The cap 3 is a thread 14 in the housing 18 screwed in. A seal is achieved by the seal 15. When inserting the closure cap 3, the above is simultaneously Driver 12 into the adjustment sleeve through the opening 11 introduced in such a way that nothing goes beyond the driver cross section Magnifications are available. The driver 12 is complete housed inside the adjusting sleeve 2. In the embodiment the driver 12 is provided with a hexagon, which means that the same shape of the hexagon is also present in the opening 11 is. However, it is also conceivable to use any other shape here, which is able to adjust the corresponding forces Transfer compression spring 1 when actuating the adjusting screw 13.

In dem Ausführungsbeispiel der Figur 2 ist die Druckfeder 1 im entkomprimierten Zustand dargestellt. Gleichzeitig wird deutlich, dass der Mitnehmer 12 innerhalb der Einstellhülse 2 in den Hohlraum 8 komplett eingetaucht ist, im Gegensatz zum Stand der Technik, bei dem die Mitnehmer hinter der Verstellvorrichtung liegen und somit eine Verlängerung des Türschließers zur Folge haben. Im Gegensatz dazu ist in der Figur 3 die Druckfeder 1 mit maximaler Federvorspannung eingestellt und gleichzeitig die Tür um 180° verschwenkt worden, was eine maximale Komprimierung der Druckfeder 1 zur Folge hat. In dieser Extremstellung muss noch sichergestellt werden, dass der Mitnehmer 12 auch weiterhin in den Durchbruch 11 der Einstellhülse 2 eintaucht. Durch diese Art der Vorrichtung wird klar, dass keine feste Verbindung zwischen der Federverstellung und dem Verbindungsglied 20 vorliegt. Die gesamte Verstellschraube 23 wird bei Betätigung der Antriebsachse 24 mit bewegt, d. h. sie wird gezogen, was gleichzeitig eine bessere Führung für den Kolben 19 (Dämpfungseinrichtung) darstellt. Durch diese Art der Konstruktion wird deutlich, dass zusätzliche Druckkräfte auf die Verschlusskappe 3 nicht ausgeübt werden, wie es beim bekannten Stand der Technik der Fall ist. Die gesamte Druckverteilung ist auf einen sehr engen Raum ausgerichtet worden, nämlich etwa zur Mitte des Gehäuses hin. Durch diese Art der Konstruktion wird es möglich, die geometrischen Abmaße des Gehäuses in sehr engen Grenzen zu halten. Auch ist keine zusätzliche Abdichtung einer sonst normalerweise vorhandenen Kolbenstange notwendig, da beim erfindungsgemäßen Gegenstand die gesamte Vorrichtung der Federverstelleinrichtung sich innerhalb des Druckraumes befindet. Durch diese Maßnahme wird der Wirkungsgrad eines solchen Türschließers wesentlich höher liegen als bei den bisher zum Stand der Technik zählenden Türschließern. Weitere Vorteile der Erfindung sind eine wesentlich geringere Baulänge des Türschließers bei gleichzeitig geringeren Abmaßen des Gehäuses. Eine Einstellung der Federkraft ist problemlos durchzuführen, wobei gleichzeitig auch sichergestellt ist, dass eine Verdrehung des Kolbens und damit möglicherweise Verkantung und Herabsetzung des gewünschten Wirkungsgrades nicht gegeben ist. In the embodiment of Figure 2, the compression spring 1 is in the decompressed State shown. At the same time it becomes clear that the driver 12 completely immersed in the cavity 8 within the adjusting sleeve 2 is, in contrast to the prior art, in which the driver lie behind the adjustment device and thus an extension of the Door closer result. In contrast, in FIG Compression spring 1 set with maximum spring preload and at the same time the door has been pivoted through 180 °, giving maximum compression the compression spring 1 has the consequence. In this extreme position must still ensure that the driver 12 continues in the Breakthrough 11 of the adjusting sleeve 2 is immersed. Through this type of device it becomes clear that there is no fixed connection between the spring adjustment and the connector 20 is present. The entire adjustment screw 23 is also moved when the drive shaft 24 is actuated, i. H. it is pulled, which is at the same time a better guide for the piston 19 (damping device). Because of this type of construction it becomes clear that additional pressure forces on the closure cap 3 not be exercised, as is the case with the known prior art is. The entire pressure distribution is aimed at a very narrow space been around the middle of the case. By this way The construction allows the geometric dimensions of the housing to keep within very narrow limits. Also, there is no additional seal an otherwise normally available piston rod is necessary, since the entire device of the subject of the invention Spring adjustment device is located within the pressure chamber. By this measure becomes the efficiency of such a door closer are much higher than those previously known in the art Door closers. Further advantages of the invention are essential shorter overall length of the door closer with simultaneously smaller dimensions of the housing. The spring force can be easily adjusted, while at the same time ensuring that a twist of the piston and thus possibly tilting and lowering the desired efficiency is not given.

Bezugszeichenreference numeral

11
Druckfedercompression spring
22
Einstellhülseadjusting
33
Verschlußkappecap
44
Stützscheibesupport disc
55
Kragencollar
66
Stützscheibesupport disc
88th
Hohlraumcavity
99
Bodenground
1010
Gewindethread
1111
Durchbruchbreakthrough
1212
Mitnehmertakeaway
1313
Verstellschraubeadjusting
1414
Gewindethread
1515
Dichtungpoetry
1616
Bewegungsrichtungmovement direction
1717
Hubkurvenscheibecam disc
1818
Gehäusecasing
1919
Kolbenpiston
2020
Verbindungsgliedlink
2121
Vorsprunghead Start
2222
Sicherungsscheibelock washer
2323
Verstellschraubeadjusting
2424
Antriebsachsedrive axle
2525
Dichtungpoetry
2626
Sicherungsscheibelock washer
2727
Bewegungsrichtungmovement direction
2828
Stützrollesupporting role
2929
Zylinderwandungcylinder
3030
Druckrollepressure roller
3131
Laschenwagencam plate
3232
FederverstellwegFederverstellweg

Claims (1)

  1. Door closer having a drive axle (24) adapted to be connected to a door leaf, which axle, from a closed position, is rotatable in both directions and is positively positioned with a cam disc (17) inside a housing (18) between a support roller (28) and a pressure roller (30), which are provided at a bracket carrier (31) to which a connecting member (20) is applied that extends into the interior of a compression spring (1) of an energy storage means and is applied to one end of the compression spring (1), whereby the other end of the compression spring (1) bears against a projection (21), and whereby the whole housing (18) of the door closer is formed as a housing of a hydraulic damping device while providing for a cylinder chamber (29), wherein a piston (19) is received that separates the pressure medium chambers, characterised in that the piston (19) is positioned between bracket carrier (31) and connecting member (20) in a tension-loaded manner, that the connecting member (20) is provided with a thread (10), on which an adjustment sleeve (2) is screwed with a thread (10) at its front bottom (9), whereby the adjustment sleeve (2) has a collar (5), against which the compression spring (1) bears, and extends with its shaft into the interior of compression spring (1), and presents, in the axial direction past the thread (10), a hollow space (8), which is provided with a polygonal socket portion into which positively engages, in a longitudinally displaceable way and rotatable from the outside, a driver (12), which is stationary arranged in the housing cover (3).
EP96900843A 1995-02-22 1996-01-24 Door closer Expired - Lifetime EP0756663B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19506220A DE19506220C2 (en) 1995-02-22 1995-02-22 Door closer
DE19506220 1995-02-22
PCT/DE1996/000096 WO1996026343A1 (en) 1995-02-22 1996-01-24 Door closer

Publications (2)

Publication Number Publication Date
EP0756663A1 EP0756663A1 (en) 1997-02-05
EP0756663B1 true EP0756663B1 (en) 2002-10-23

Family

ID=7754787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96900843A Expired - Lifetime EP0756663B1 (en) 1995-02-22 1996-01-24 Door closer

Country Status (13)

Country Link
US (1) US5802670A (en)
EP (1) EP0756663B1 (en)
AT (1) ATE226680T1 (en)
AU (1) AU4481196A (en)
BR (1) BR9605811A (en)
CZ (1) CZ292165B6 (en)
DE (2) DE19506220C2 (en)
ES (1) ES2096548T3 (en)
GR (1) GR970300007T1 (en)
PT (1) PT756663E (en)
SK (1) SK284502B6 (en)
TW (1) TW291520B (en)
WO (1) WO1996026343A1 (en)

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WO2008019719A1 (en) * 2006-08-14 2008-02-21 Dorma Gmbh + Co. Kg Door closer
DE102007042270A1 (en) 2007-09-06 2009-03-12 Dorma Gmbh + Co. Kg Door closer for controlling movement of door leaf, has controlling device including pressurizing medium-spring-damper unit with piston unit that partially conveys pressurizing medium from chamber to another chamber
DE102007042269A1 (en) 2007-09-06 2009-03-12 Dorma Gmbh + Co. Kg Door closer for controlling movement of door leaf, has controlling device with damper unit with piston unit partially conveying pressurizing medium to control movement of door leaf, where medium contains electro-heologic liquid
DE102008022714A1 (en) 2008-05-07 2009-11-12 Dorma Gmbh + Co. Kg Activation of functions in a door drive
EP1835110A3 (en) * 2006-03-17 2009-12-02 Dorma Gmbh & Co. Kg Door actuating device, in particular for a revolving door
DE102006038110B4 (en) * 2006-08-14 2014-03-13 Dorma Gmbh + Co. Kg door closers
DE102018216381B4 (en) * 2018-09-25 2020-10-22 Geze Gmbh Drive unit for a swing or sliding sash and rotary position detection method in one drive unit
DE102018206583B4 (en) 2018-04-27 2025-02-20 Geze Gmbh Drive unit for a pivoting or sliding wing and rotary position detection method in a drive unit

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EP1835110A3 (en) * 2006-03-17 2009-12-02 Dorma Gmbh & Co. Kg Door actuating device, in particular for a revolving door
DE102006012757B4 (en) * 2006-03-17 2014-03-27 Dorma Gmbh + Co. Kg Door operating device, in particular for a revolving door
WO2008019719A1 (en) * 2006-08-14 2008-02-21 Dorma Gmbh + Co. Kg Door closer
DE102006038110B4 (en) * 2006-08-14 2014-03-13 Dorma Gmbh + Co. Kg door closers
DE102006038109B4 (en) 2006-08-14 2020-08-06 Dormakaba Deutschland Gmbh Door closer
DE102007042270A1 (en) 2007-09-06 2009-03-12 Dorma Gmbh + Co. Kg Door closer for controlling movement of door leaf, has controlling device including pressurizing medium-spring-damper unit with piston unit that partially conveys pressurizing medium from chamber to another chamber
DE102007042269A1 (en) 2007-09-06 2009-03-12 Dorma Gmbh + Co. Kg Door closer for controlling movement of door leaf, has controlling device with damper unit with piston unit partially conveying pressurizing medium to control movement of door leaf, where medium contains electro-heologic liquid
DE102008022714A1 (en) 2008-05-07 2009-11-12 Dorma Gmbh + Co. Kg Activation of functions in a door drive
WO2009135644A1 (en) * 2008-05-07 2009-11-12 Dorma Gmbh + Co. Kg Enabling of functions in a door drive
DE102018206583B4 (en) 2018-04-27 2025-02-20 Geze Gmbh Drive unit for a pivoting or sliding wing and rotary position detection method in a drive unit
DE102018216381B4 (en) * 2018-09-25 2020-10-22 Geze Gmbh Drive unit for a swing or sliding sash and rotary position detection method in one drive unit

Also Published As

Publication number Publication date
US5802670A (en) 1998-09-08
AU4481196A (en) 1996-09-11
SK135196A3 (en) 1998-02-04
EP0756663A1 (en) 1997-02-05
GR970300007T1 (en) 1997-04-30
PT756663E (en) 2003-03-31
SK284502B6 (en) 2005-05-05
CZ292165B6 (en) 2003-08-13
TW291520B (en) 1996-11-21
CZ307796A3 (en) 1997-10-15
BR9605811A (en) 1997-08-12
WO1996026343A1 (en) 1996-08-29
DE59609807D1 (en) 2002-11-28
ATE226680T1 (en) 2002-11-15
ES2096548T3 (en) 2003-05-01
DE19506220A1 (en) 1996-08-29
DE19506220C2 (en) 1996-12-12
ES2096548T1 (en) 1997-03-16

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