EP1042576B2 - Door closer - Google Patents

Door closer Download PDF

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Publication number
EP1042576B2
EP1042576B2 EP99924892A EP99924892A EP1042576B2 EP 1042576 B2 EP1042576 B2 EP 1042576B2 EP 99924892 A EP99924892 A EP 99924892A EP 99924892 A EP99924892 A EP 99924892A EP 1042576 B2 EP1042576 B2 EP 1042576B2
Authority
EP
European Patent Office
Prior art keywords
door closer
lower face
shaft
lateral surfaces
bearing blocks
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
EP99924892A
Other languages
German (de)
French (fr)
Other versions
EP1042576B1 (en
EP1042576A1 (en
Inventor
Olaf Ginzel
Rainer Fengler
Lars Parzanka
Roger Migchielsen
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
Family has litigation
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Priority claimed from DE1998134889 external-priority patent/DE19834889A1/en
Priority claimed from DE29822258U external-priority patent/DE29822258U1/en
Application filed by Dorma Deutschland GmbH filed Critical Dorma Deutschland GmbH
Publication of EP1042576A1 publication Critical patent/EP1042576A1/en
Application granted granted Critical
Publication of EP1042576B1 publication Critical patent/EP1042576B1/en
Publication of EP1042576B2 publication Critical patent/EP1042576B2/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
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • 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
    • 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
    • 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
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/227—Additional arrangements for closers, e.g. for holding the wing in opened or other position mounted at the top of wings, e.g. details related to closer housings, covers, end caps or rails therefor
    • 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
    • E05F3/102—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 rack-and-pinion transmission between driving shaft and piston within the closer housing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors

Definitions

  • the invention relates to a door closer according to the preamble of claim 1.
  • Such a door closer has become known under the name "DORMA TS 77" and has proven itself in practice by its reliability and the many applications.
  • the door closer can be mounted on the inside or outside of a door leaf as well as on a door frame.
  • the arrangement of the door closer on the inside of a door leaf is fundamentally problematic because the door leaf is moved when opening in the direction of the adjacent wall and the door closer is then located between the door leaf and this wall. So there is a danger that the door closer at too large opening angle of the door leaf abuts against the adjacent wall and is damaged, especially if the door is installed in a corner or a thick wall. In such applications, a limitation of the opening angle is appropriate. Desirable are therefore compact door closer with the lowest possible height while maintaining the previous variety of applications and different functions.
  • the outer dimensions, in particular the height of the known door closer are very high due to the special internal structure, so that for the packaging of the door closer according to much packaging material is required and the other appropriate storage and transport space must be available.
  • the edged outer shape of the door closer creates manufacturing problems through material cavities and is not optimal under the aspect of an economical use of materials.
  • the invention has for its object to improve a door closer according to the preamble of claim 1 so that a compact and visually appealing unit is created, which can be produced with minimal material and manufacturing costs.
  • the subject matter of claim 1 has the advantage that a low overall height can be realized by the compact outer shape of the door closer.
  • the door closer is therefore also suitable for use in confined or unfavorable installation situations with regard to a restricted opening angle of a door leaf.
  • a door closer is to be preferred, the mechanical and hydraulic units are arranged in the longitudinal direction in a corresponding channel of the body.
  • the material requirement for the body according to the invention is extremely low, the stability and all functional properties are guaranteed. All wall thicknesses are reduced to a minimum.
  • the resulting outer contours are made visually appealing by flowing and seamless transitions.
  • the body is elongated through the array of functional units, with the side surfaces conforming to the contours of the channel. Ideal is a curved or oblique course of the side surfaces.
  • the exit points of the drive shaft are sufficiently stable, the side surfaces of block-like massive reinforcements, which in turn are designed to save material. Particularly advantageous is the connection of these so-called bearing blocks on the underside of the body.
  • the drive shaft is arranged so that different mounting positions of the door closer can be realized.
  • the shaft is very material-saving and easy to install stored and secured in the corresponding axle hole.
  • the reduction of the outside dimensions reduces the amount of packaging materials required and reduces the storage and transport space.
  • the reduction in volume and weight increases packing density during transport and also makes handling easier for on-site assembly workers.
  • the properties mentioned also contribute significantly to the reduction of manufacturing costs.
  • the door closer 1 shown in the figures are manufactured in one piece in a casting process and consist for. As aluminum or steel. Despite the aspect of optimizing minimal material use with sufficient body stability, no solid body 2 is created. Basically, all outer contours and surface transitions are rounded.
  • the door closers 1 are each equipped to receive a mechanical and a hydraulic functional unit, which are arranged to reduce the height in a known manner in the longitudinal extension of the body 2 in a channel 21.
  • a shaft 22 connects the mechanical unit in the body 2 with a linkage outside the body 2.
  • the shaft 22 is guided on both sides of the body 2 to the arrangement of the door closer 1 and the linkage, relative to a door leaf and a door frame in dependence to handle the assembly conditions variable. For clarity, the linkage is not shown.
  • a piston 23 and a closer spring 24 are slidably coupled to each other.
  • the shaft 22 is rotatably mounted in the body 2 and has centrally a gear 25 which cooperates with a toothed rod 26 formed integrally within the piston 23.
  • the shaft 22 is coupled outside the body 2 with the linkage, not shown.
  • the body 2 has an axially aligned axle bore 27 for supporting and securing the shaft 22.
  • the axle bore 27 has a round cross-section.
  • the Indian FIG. 5 Upper part of the axle 27 has a cross-section narrowing edge 28.
  • the lower part of the axle 27 has a groove 29 for a sealing ring 30.
  • the shaft 22 is symmetrical and has the center of the gear 25. On both sides of the gear 25 discs 31 are pre-assembled. At both ends of the shaft 22 devices for attachment of a linkage are formed. The linkage is installed at the appropriate end depending on the installation situation.
  • sintered bushes 32, 37 made of ceramic material.
  • a tubular bearing shell 33 has a stepped cross section, which ends in a peripheral edge 34. The outer surface of the bearing shell 33 is at least partially radially enlarged.
  • the bearing shell 33 forms a preassembled unit, in which first a ring seal 35 is pushed against the peripheral edge 34 and then the sintered sleeve 32 is pressed inextricably against the annular seal 35.
  • a ring seal 36 and then the sintered bushing 37 is fixed inextricably.
  • the sealing ring 30 is inserted in the groove 29 of the lower part of the axle 27.
  • the shaft 22 is inserted through the lower part of the axle 27.
  • the shaft 22 slides within the upper part of the axial bores 27 through the sintered bush 37 fixed therein until it abuts against the channel 21 with the disk 31.
  • the complete storage and attachment of the shaft 22 is effected by inserting the bearing shell 33 in the lower part of the axle bore 27.
  • the preassembled bearing shell 33 is pushed over the shaft 22 and finally positioned in the body 2 and on the shaft 22 by means of a defined pressure.
  • the sintered bush 32 slides over the shaft 22 and the outer surfaces of the bearing shell 33 along the inner wall of the axle bore 27.
  • the body 2 surrounding the axial bore 27 is pressed elastically outwards. After passing through the groove 29, the projection hooked by spring back of the body 2 in this groove 29 and the bearing shell 33 is fixed.
  • the shaft 22 is also positioned axially by contact of the sintered bushing 32 on the disk 31.
  • the body 2 is in principle elongated. He has over a bottom 4 on an upper surface 3.
  • On the bottom 4 mounting plates 9,10 are formed in the longitudinal direction, which serve for fastening of the body 2 to a door leaf or a door frame.
  • the bottom 4 and the top surface 3 are in longitudinal extension connected by side surfaces 5,6. End faces 7, 8 are arranged perpendicular to the side surfaces 5, 6 and to the underside 4 and the upper surface 3 and delimit the body 2 in the longitudinal extent.
  • the mounting plates 9,10 protrude from the body 2 at the end faces 7,8.
  • the embodiment according to the Figures 1-3 has the following peculiarities.
  • the side surfaces 5,6 extend starting at the bottom 4 with a body-directed curvature and terminate at the surface 3.
  • the curvature has a parabolic shape, wherein the upper surface 3 limits this course.
  • the transitions between the side surfaces 5,6 and the upper surface 3 are formed by small radii.
  • the shaft is arranged centrally between the upper surface 3 and the lower side 4 and off-center between the end faces 7,8.
  • This arrangement of the shaft 22 allows diverse, eg mirror-image mounting variants of the door closer 1. It occurs on both side surfaces 5,6 on bearing blocks 11,12 from the body 2.
  • the bearing blocks 11,12 are solid and integrally formed on the body 2, to ensure a stable shaft bearing.
  • the bearing blocks 11, 12 each have trapezoidal front surfaces 13, 14 which run perpendicular to the underside 4, with the broad base sides 15, 16 on the underside 4. This trapezoidal cross-section of the bearing blocks 11, 12 continues to increase slightly from the front surfaces 13, 14 to the side surfaces 5, 6.
  • the bearing blocks 11,12 are dimensioned so that they do not project beyond the upper surface 3.
  • FIGS. 6 and 7 a body 2 is shown, the side surfaces 5,6 also run parabolic.
  • the upper surface 3 is slightly bulged outward body, so that further casting material is saved.
  • the transitions between the side surfaces 5,6 and the upper surface 3 are also formed with small radii.
  • the bearing blocks 11,12 have U-shaped front surfaces 13,14, wherein the open sides 17,18 on the bottom 4 are.
  • the U-shaped cross-section of the bearing blocks 11, 12 increases slightly in the direction of the side surfaces 5.6.
  • the mounting plates 9,10 are chamfered for reasons of material savings.
  • FIGS. 8 and 9 a body 2 is shown whose side surfaces 5, 6 have different curvatures.
  • the side surface 5 extends as in the embodiment according to Figure 1-3 already described parabolic and adjacent to a flat top surface 3.
  • the side surface 6 has a different from the side surface 5 parabolic course, which is characterized in that the side surface 6 smoothly terminates in the upper surface 3.
  • the upper surface 3 is thus formed on one side flat and curved on one side.
  • All three embodiments have in common that they are at the bottom 4, as shown FIG. 3 can be seen two holes 19,20. These holes 19,20 are used during production after the casting process for centering and mounting of the workpiece at other machining sites. As a result, no misalignments of the workpiece can occur, especially in machine manufacturing.

Description

Die Erfindung geht aus von einem Türschließer gemäß dem Oberbegriff des Anspruches 1.The invention relates to a door closer according to the preamble of claim 1.

Ein solcher Türschließer ist unter der Bezeichnung "DORMA TS 77" bekannt geworden und hat sich in der Praxis durch seine Zuverlässigkeit und die vielfältigen Anwendungsmöglichkeiten bewährt. Der Türschließer kann sowohl an der Innen- oder Außenseite eines Türblattes als auch an einem Türrahmen montiert werden. Die Anordnung des Türschließers an der Innenseite eines Türblattes ist grundsätzlich problematisch, da das Türblatt beim Öffnen in Richtung der benachbarten Wand bewegt wird und der Türschließer sich dann zwischen dem Türblatt und dieser Wand befindet. Es besteht also die Gefahr, daß der Türschließer bei zu großem Öffnungswinkel des Türblattes gegen die benachbarte Wand stößt und beschädigt wird, insbesondere sofern die Tür in einer Raumecke oder einer dickwandigen Mauer eingebaut ist. Bei derartigen Anwendungsfällen ist eine Begrenzung des Öffnungswinkels angebracht. Erstrebenswert sind deshalb kompakte Türschließer mit geringstmöglicher Bauhöhe unter Beibehaltung der bisherigen Anwendungsvielfalt und der unterschiedlichen Funktionen.Such a door closer has become known under the name "DORMA TS 77" and has proven itself in practice by its reliability and the many applications. The door closer can be mounted on the inside or outside of a door leaf as well as on a door frame. The arrangement of the door closer on the inside of a door leaf is fundamentally problematic because the door leaf is moved when opening in the direction of the adjacent wall and the door closer is then located between the door leaf and this wall. So there is a danger that the door closer at too large opening angle of the door leaf abuts against the adjacent wall and is damaged, especially if the door is installed in a corner or a thick wall. In such applications, a limitation of the opening angle is appropriate. Desirable are therefore compact door closer with the lowest possible height while maintaining the previous variety of applications and different functions.

Die Außenabmessungen, insbesondere die Bauhöhe, des bekannten Türschließers sind aufgrund des speziellen Innenaufbaus sehr hoch, so daß für die Verpackung des Türschließers entsprechend viel Verpackungsmaterial benötigt wird und des weiteren entsprechender Lager- und Transportraum zur Verfügung stehen muß. Die kantige Außenform des Türschließers schafft fertigungstechnische Probleme durch Materialhohlräume und ist unter dem Aspekt eines ökonomischen Materialeinsatzes nicht optimal.The outer dimensions, in particular the height of the known door closer are very high due to the special internal structure, so that for the packaging of the door closer according to much packaging material is required and the other appropriate storage and transport space must be available. The edged outer shape of the door closer creates manufacturing problems through material cavities and is not optimal under the aspect of an economical use of materials.

Aus der FR 2 319 761 A und der DE 2 245 748 A sind Türschließer bekannt, deren Außenformen hinsichtlich des Materialeinsatzes optimiert worden sind. Die übereinander liegende Anordnung der Welle und einer außen verzahnten Zahnstange innerhalb des Türschließergehäuses lassen aufgrund der systembedingten Grenzen eine wesentliche Verringerung der Bauhöhe jedoch nicht zu.From the FR 2 319 761 A and the DE 2 245 748 A Door closers are known whose outer shapes have been optimized with regard to the use of materials. The superimposed arrangement of the shaft and an externally toothed rack inside the door closer housing, however, can not be significantly reduced due to systemic limitations.

Aus der US-A-4 394 787 ist ebenfalls ein derartiger Türschließer bekannt. Die Welle des Türschließers ist bei dieser Ausführungsform in Lagerböcken gelagert, die über das Türschließergehäuse vorstehen und sich dadurch eine optisch wenig ansprechende Ausgestaltung ergibt.From the US-A-4,394,787 Such a door closer is also known. The shaft of the door closer is mounted in this embodiment in bearing blocks, which project beyond the door closer housing and thereby results in a visually unattractive design.

Der Erfindung liegt die Aufgabe zugrunde, einen Türschließer nach dem Oberbegriff des Anspruches 1 so zu verbessern, daß eine kompakte und optisch ansprechende Einheit entsteht, die mit minimalen Material- und Fertigungsaufwand hergestellt werden kann.The invention has for its object to improve a door closer according to the preamble of claim 1 so that a compact and visually appealing unit is created, which can be produced with minimal material and manufacturing costs.

Gelöst wird diese Aufgabe mit den im kennzeichenden Teil des Anspruches 1 angegebenen Merkmalen. Weitere vorteilhafte Ausgestaltungen der Erfindung sind durch die Unteransprüche gekennzeichnet.This object is achieved with the features stated in the characterizing part of claim 1. Further advantageous embodiments of the invention are characterized by the subclaims.

Der Gegenstand des Anspruches 1 weist den Vorteil auf, daß durch die kompakte Außenform des Türschließers eine geringe Bauhöhe realisiert werden kann. Der Türschließer ist damit auch für die Verwendung unter beengten bzw. ungünstigen Einbausituationen hinsichtlich eines eingeschränkten Öffnungswinkels eines Türblattes geeignet. Grundsätzlich ist hierbei ein Türschließer zu bevorzugen, dessen mechanische und hydraulische Einheiten in Längsrichtung in einem entsprechenden Kanal des Körpers angeordnet sind.The subject matter of claim 1 has the advantage that a low overall height can be realized by the compact outer shape of the door closer. The door closer is therefore also suitable for use in confined or unfavorable installation situations with regard to a restricted opening angle of a door leaf. Basically, in this case a door closer is to be preferred, the mechanical and hydraulic units are arranged in the longitudinal direction in a corresponding channel of the body.

Obwohl der Materialbedarf für den erfindungsgemäßen Körper äußerst gering ist, sind die Stabilitäts- und alle Funktionseigenschaften gewährleistet. Alle Wanddicken sind auf ein Minimum reduziert. Die sich ergebenden Außenkonturen werden durch fließende und nahtlose Übergänge optisch ansprechend gestaltet. Der Körper ist durch die Reihenanordnung der Funktionseinheiten länglich geformt, wobei sich die Seitenflächen an die Konturen des Kanals anschmiegen. Ideal ist dabei ein gekrümmter oder schräger Verlauf der Seitenflächen. Der fließende Verlauf der Außenkonturen, insbesondere der Seitenflächen und der nachfolgend erläuterten Lagerblöcke, reduziert den Materialeinsatz erheblich und vermindert die gießtechnischen Probleme.Although the material requirement for the body according to the invention is extremely low, the stability and all functional properties are guaranteed. All wall thicknesses are reduced to a minimum. The resulting outer contours are made visually appealing by flowing and seamless transitions. The body is elongated through the array of functional units, with the side surfaces conforming to the contours of the channel. Ideal is a curved or oblique course of the side surfaces. The flowing course of the outer contours, in particular the side surfaces and the bearing blocks explained below, significantly reduces the use of material and reduces casting problems.

Damit die Austrittsstellen der Antriebswelle hinreichend stabil sind, weisen die Seitenflächen blockartige massive Verstärkungen auf, die ihrerseits materialsparend ausgebildet sind. Besonders vorteilhaft ist die Anbindung dieser sogenannten Lagerblöcke an der Unterseite des Körpers. Die Antriebswelle ist so angeordnet, daß verschiedene Montagepositionen des Türschließers realisiert werden können.Thus, the exit points of the drive shaft are sufficiently stable, the side surfaces of block-like massive reinforcements, which in turn are designed to save material. Particularly advantageous is the connection of these so-called bearing blocks on the underside of the body. The drive shaft is arranged so that different mounting positions of the door closer can be realized.

Darüber hinaus ist die Welle äußerst materialsparend und montagefreundlich in der entsprechenden Achsbohrung gelagert und befestigt.In addition, the shaft is very material-saving and easy to install stored and secured in the corresponding axle hole.

Die Reduzierung der Außenabmessungen vermindert die Menge an benötigten Verpackungsmaterialien und verringert den Lager- und Transportplatz. Die Reduzierung des Volumens und des Gewichtes erhöht die Packungsdichte während des Transportes und erleichtert darüberhinaus den Montagekräften vor Ort die Handhabung. Die genannten Eigenschaften tragen außerdem wesentlich zur Reduzierung der Herstellungskosten bei.The reduction of the outside dimensions reduces the amount of packaging materials required and reduces the storage and transport space. The reduction in volume and weight increases packing density during transport and also makes handling easier for on-site assembly workers. The properties mentioned also contribute significantly to the reduction of manufacturing costs.

Die Erfindung wird nun anhand von Ausführungsbeispielen unter Zuhilfenahme der Zeichnungen erläutert. Es zeigen:

Figur 1:
Eine perspektivische Ansicht eines Türschließers.
Figur 2:
Eine Frontansicht des Türschließers gemäß Figur 1.
Figur 3:
Eine Ansicht von unten des Türschließers gemäß Figur 1.
Figur 4:
Einen vertikalen Längsschnitt des Türschließers gemäß Figur 1.
Figur 5:
Einen horizontalen Längsschnitt des Türschließers gemäß Figur 1.
Figur 6:
Eine perspektivische Ansicht einer zweiten Ausführung eines Türschließers.
Figur 7:
Eine Frontansicht des Türschließers gemäß Figur 4.
Figur 8:
Eine perspektivische Ansicht einer dritten Ausführung eines Türschließers.
Figur 9:
Eine Frontansicht des Türschließers gemäß Figur 6.
The invention will now be explained with reference to embodiments with the aid of the drawings. Show it:
FIG. 1:
A perspective view of a door closer.
FIG. 2:
A front view of the door closer according to FIG. 1 ,
FIG. 3:
A view from below of the door closer according to FIG. 1 ,
FIG. 4:
A vertical longitudinal section of the door closer according to FIG. 1 ,
FIG. 5:
A horizontal longitudinal section of the door closer according to FIG. 1 ,
FIG. 6:
A perspective view of a second embodiment of a door closer.
FIG. 7:
A front view of the door closer according to FIG. 4 ,
FIG. 8:
A perspective view of a third embodiment of a door closer.
FIG. 9:
A front view of the door closer according to FIG. 6 ,

In den Figuren sind gleiche oder gleichwirkende Bauteile mit gleichen Bezugsziffern dargestellt. Die in den Figuren dargestellten Türschließer 1 werden einstückig in einem Gießprozess hergestellt und bestehen z. B. aus Aluminium oder Stahl. Trotz des Aspektes der Optimierung von minimalem Materialeinsatz bei hinreichender Körperstabilität entsteht kein massiver Körper 2. Grundsätzlich sind alle Außenkonturen und Flächenübergänge abgerundet ausgebildet.In the figures, the same or equivalent components are shown with the same reference numerals. The door closer 1 shown in the figures are manufactured in one piece in a casting process and consist for. As aluminum or steel. Despite the aspect of optimizing minimal material use with sufficient body stability, no solid body 2 is created. Basically, all outer contours and surface transitions are rounded.

Die Türschließer 1 sind jeweils zur Aufnahme einer mechanischen und einer hydraulischen Funktionseinheit ausgerüstet, die zur Verringerung der Bauhöhe in bekannter Weise in Längserstreckung des Körpers 2 in einem Kanal 21 angeordnet sind. Eine Welle 22 verbindet die mechanische Einheit in dem Körper 2 mit einem Gestänge außerhalb des Körpers 2. Die Welle 22 wird beiderseits aus dem Körper 2 geführt, um die Anordnung des Türschließers 1 und des Gestänges, bezogen auf ein Türblatt und ein Türrahmen in Abhängigkeit von den Montagebedingungen variabel handhaben zu können. Aus Gründen der Übersichtlichkeit ist das Gestänge nicht dargestellt.The door closers 1 are each equipped to receive a mechanical and a hydraulic functional unit, which are arranged to reduce the height in a known manner in the longitudinal extension of the body 2 in a channel 21. A shaft 22 connects the mechanical unit in the body 2 with a linkage outside the body 2. The shaft 22 is guided on both sides of the body 2 to the arrangement of the door closer 1 and the linkage, relative to a door leaf and a door frame in dependence to handle the assembly conditions variable. For clarity, the linkage is not shown.

In dem länglichen Körper 2 sind ein Kolben 23 und eine Schließerfeder 24 verschiebbar aneinander gekoppelt. Die Welle 22 ist drehbar in dem Körper 2 gelagert und weist mittig ein Zahnrad 25 auf, das mit einer einstückig innerhalb des Kolben 23 ausgebildeten Zahnstange 26 zusammenarbeitet. Die Welle 22 ist außerhalb des Körpers 2 mit dem nicht dargestellten Gestänge gekoppelt.In the elongated body 2, a piston 23 and a closer spring 24 are slidably coupled to each other. The shaft 22 is rotatably mounted in the body 2 and has centrally a gear 25 which cooperates with a toothed rod 26 formed integrally within the piston 23. The shaft 22 is coupled outside the body 2 with the linkage, not shown.

Wenn die Tür geöffnet wird, wird die Welle 22 über das mit der Tür gekoppelte Gestänge verdreht. Der Kolben 23 wird in horizontaler Richtung bewegt und drückt die Schließerfeder 24 zusammen. Die gespeicherte Öffnungsenergie wird, sobald die Tür losgelassen wird, wieder frei, indem sich die Schließerfeder 24 entspannt und dabei den Kolben 23 in die entgegengesetzte Richtung drückt. Die Tür wird durch die Umsetzung der linearen Bewegung in eine Drehbewegung wieder geschlossen. Als Dämpfungsmedium befindet sich in dem Körper 2 Hydrauliköl.When the door is opened, the shaft 22 is rotated over the linkage coupled to the door. The piston 23 is moved in the horizontal direction and compresses the closing spring 24 together. The stored opening energy is, as soon as the door is released, free again by the closing spring 24 relaxes while pressing the piston 23 in the opposite direction. The door is closed again by the conversion of the linear movement into a rotary movement. As a damping medium is located in the body 2 hydraulic oil.

Der Körper 2 weist eine axial ausgerichtete Achsbohrung 27 zur Lagerung und Befestigung der Welle 22 auf. Die Achsbohrung 27 hat einen runden Querschnitt. Der in der Figur 5 obere Teil der Achsbohrung 27 hat einen querschnittsverengenden Rand 28. Der untere Teil der Achsbohrung 27 weist eine Nut 29 für einen Dichtring 30 auf. Die Welle 22 ist symmetrisch ausgebildet und weist mittig das Zahnrad 25 auf. Beiderseits des Zahnrades 25 sind Scheiben 31 vormontiert. An beiden Enden der Welle 22 sind Vorrichtungen zur Befestigung eines Gestänges ausgebildet. Das Gestänge wird in Abhängigkeit von der Einbausituation am geeigneten Ende installiert. Als Lagerung dienen beiderseits der Welle 22 sogenannte Sinterbuchsen 32, 37 aus keramischem Material. Eine rohrförmige Lagerschale 33 hat einen abgestuften Querschnitt, der in einer Randkante 34 endet. Die Außenfläche der Lagerschale 33 ist zumindest bereichsweise radial vergrößert ausgebildet.The body 2 has an axially aligned axle bore 27 for supporting and securing the shaft 22. The axle bore 27 has a round cross-section. The Indian FIG. 5 Upper part of the axle 27 has a cross-section narrowing edge 28. The lower part of the axle 27 has a groove 29 for a sealing ring 30. The shaft 22 is symmetrical and has the center of the gear 25. On both sides of the gear 25 discs 31 are pre-assembled. At both ends of the shaft 22 devices for attachment of a linkage are formed. The linkage is installed at the appropriate end depending on the installation situation. As storage on both sides of the shaft 22 so-called sintered bushes 32, 37 made of ceramic material. A tubular bearing shell 33 has a stepped cross section, which ends in a peripheral edge 34. The outer surface of the bearing shell 33 is at least partially radially enlarged.

Nachfolgend wird die Montage des Türschließers 1 beschrieben. Die Lagerschale 33 bildet eine vormontierte Einheit, in die zuerst eine Ringdichtung 35 gegen die Randkante 34 geschoben wird und anschließend die Sinterbuchse 32 unlösbar gegen die Ringdichtung 35 gepreßt wird. In dem oberen Teil der Achsbohrung 27 wird eine Ringdichtung 36 und anschließend die Sinterbuchse 37 unlösbar fixiert. In der Nut 29 des unteren Teiles der Achsbohrung 27 wird der Dichtring 30 eingelegt. Nach dem Einbringen der Schließerfeder 24 und des Kolbens 23 in den Kanal 21 wird die Welle 22 durch den unteren Teil der Achsbohrung 27 eingesetzt. Die Welle 22 gleitet innerhalb des oberen Teiles der Achsbohrungen 27 durch die darin fixierte Sinterbuchse 37 bis sie mit der Scheibe 31 gegen den Kanal 21 stößt. Die vollständige Lagerung und Befestigung der Welle 22 erfolgt durch das Einsetzen der Lagerschale 33 im unteren Teil der Achsbohrung 27. Die vormontierte Lagerschale 33 wird über die Welle 22 geschoben und mittels eines definierten Druckes endgültig in dem Körper 2 und auf der Welle 22 positioniert. Anfänglich gleitet die Sinterbuchse 32 über die Welle 22 und die Außenflächen der Lagerschale 33 entlang der Innenwand der Achsbohrung 27. Durch die bereichsweise vergrößerte Lagerschale 33, vorzugsweise mittels eines Vorsprunges, wird der die Achsbohrung 27 umgebende Körper 2 elastisch nach außen gedrückt. Nach Passieren der Nut 29 verhakt sich der Vorsprung durch Rückfederung des Körpers 2 in dieser Nut 29 und die Lagerschale 33 ist befestigt. Gleichzeitig ist die Welle 22 auch axial durch Anlage der Sinterbuchse 32 an der Scheibe 31 positioniert.Hereinafter, the assembly of the door closer 1 will be described. The bearing shell 33 forms a preassembled unit, in which first a ring seal 35 is pushed against the peripheral edge 34 and then the sintered sleeve 32 is pressed inextricably against the annular seal 35. In the upper part of the axle 27, a ring seal 36 and then the sintered bushing 37 is fixed inextricably. In the groove 29 of the lower part of the axle 27, the sealing ring 30 is inserted. After the introduction of the closing spring 24 and the piston 23 in the channel 21, the shaft 22 is inserted through the lower part of the axle 27. The shaft 22 slides within the upper part of the axial bores 27 through the sintered bush 37 fixed therein until it abuts against the channel 21 with the disk 31. The complete storage and attachment of the shaft 22 is effected by inserting the bearing shell 33 in the lower part of the axle bore 27. The preassembled bearing shell 33 is pushed over the shaft 22 and finally positioned in the body 2 and on the shaft 22 by means of a defined pressure. Initially, the sintered bush 32 slides over the shaft 22 and the outer surfaces of the bearing shell 33 along the inner wall of the axle bore 27. By partially enlarged bearing shell 33, preferably by means of a projection, the body 2 surrounding the axial bore 27 is pressed elastically outwards. After passing through the groove 29, the projection hooked by spring back of the body 2 in this groove 29 and the bearing shell 33 is fixed. At the same time, the shaft 22 is also positioned axially by contact of the sintered bushing 32 on the disk 31.

Der Körper 2 ist prinzipiell länglich geformt. Er weist gegenüber einer Unterseite 4 eine obere Fläche 3 auf. An der Unterseite 4 sind in Längserstreckung Montageplatten 9,10 ausgebildet, die zur Befestigung des Körpers 2 an einem Türblatt oder einem Türrahmen dienen. Die Unterseite 4 und die obere Fläche 3 werden in Längserstreckung durch Seitenflächen 5,6 verbunden. Stirnseiten 7,8 sind senkrecht zu den Seitenflächen 5,6 und zu der Unterseite 4 und der oberen Fläche 3 angeordnet und begrenzen den Körper 2 in Längserstreckung. Die Montageplatten 9,10 ragen an den Stirnseiten 7,8 aus dem Körper 2 hervor.The body 2 is in principle elongated. He has over a bottom 4 on an upper surface 3. On the bottom 4 mounting plates 9,10 are formed in the longitudinal direction, which serve for fastening of the body 2 to a door leaf or a door frame. The bottom 4 and the top surface 3 are in longitudinal extension connected by side surfaces 5,6. End faces 7, 8 are arranged perpendicular to the side surfaces 5, 6 and to the underside 4 and the upper surface 3 and delimit the body 2 in the longitudinal extent. The mounting plates 9,10 protrude from the body 2 at the end faces 7,8.

Das Ausführungsbeispiel gemäß der Figuren 1-3 weist die folgenden Eigentümlichkeiten auf. Die Seitenflächen 5,6 verlaufen beginnend an der Unterseite 4 mit einer körpereinwärts gerichteten Krümmung und enden an der Oberfläche 3. Die Krümmung weist einen parabelförmigen Verlauf auf, wobei die obere Fläche 3 diesen Verlauf begrenzt. Die Übergänge zwischen den Seitenflächen 5,6 und der oberen Fläche 3 werden durch kleine Radien gebildet.The embodiment according to the Figures 1-3 has the following peculiarities. The side surfaces 5,6 extend starting at the bottom 4 with a body-directed curvature and terminate at the surface 3. The curvature has a parabolic shape, wherein the upper surface 3 limits this course. The transitions between the side surfaces 5,6 and the upper surface 3 are formed by small radii.

Die Welle ist mittig zwischen der oberen Fläche 3 und der Unterseite 4 und außermittig zwischen den Stirnseiten 7,8 angeordnet. Diese Anordnung der Welle 22 ermöglicht vielfältige, z B. spiegelbildliche Montagevarianten des Türschließers 1. Sie tritt an beiden Seitenflächen 5,6 an Lagerblöcken 11,12 aus dem Körper 2. Die Lagerblöcke 11,12 sind massiv und einstückig an dem Körper 2 ausgebildet, um eine stabile Wellenlagerung zu gewährleisten. Die Lagerblöcke 11,12 haben jeweils trapezförmige Frontflächen 13,14, die senkrecht zur Unterseite 4 verlaufen, wobei die breiten Basisseiten 15,16 an der Unterseite 4 sind. Dieser trapezförmige Querschnitt der Lagerblöcke 11,12 setzt sich leicht vergrößernd von den Frontflächen 13,14 bis zu den Seitenflächen 5,6 fort. Die Lagerblöcke 11,12 sind so dimensioniert, daß sie die obere Fläche 3 nicht überragen.The shaft is arranged centrally between the upper surface 3 and the lower side 4 and off-center between the end faces 7,8. This arrangement of the shaft 22 allows diverse, eg mirror-image mounting variants of the door closer 1. It occurs on both side surfaces 5,6 on bearing blocks 11,12 from the body 2. The bearing blocks 11,12 are solid and integrally formed on the body 2, to ensure a stable shaft bearing. The bearing blocks 11, 12 each have trapezoidal front surfaces 13, 14 which run perpendicular to the underside 4, with the broad base sides 15, 16 on the underside 4. This trapezoidal cross-section of the bearing blocks 11, 12 continues to increase slightly from the front surfaces 13, 14 to the side surfaces 5, 6. The bearing blocks 11,12 are dimensioned so that they do not project beyond the upper surface 3.

In Figur 6 und 7 ist ein Körper 2 gezeigt, dessen Seitenflächen 5,6 ebenfalls parabelförmig verlaufen. Die obere Fläche 3 ist leicht körperauswärts gewölbt, so daß weiteres Gußmaterial eingespart wird. Die Übergänge zwischen den Seitenflächen 5,6 und der oberen Fläche 3 sind ebenfalls mit kleinen Radien ausgebildet. Die Lagerblöcke 11,12 haben U-förmige Frontflächen 13,14, wobei die offenen Seiten 17,18 an der Unterseite 4 sind. Der U-förmige Querschnitt der Lagerblöcke 11, 12 vergrößert sich etwas in Richtung der Seitenflächen 5,6. Die Montageplatten 9,10 sind aus Gründen der Materialersparnis abgeschrägt ausgebildet.In FIGS. 6 and 7 a body 2 is shown, the side surfaces 5,6 also run parabolic. The upper surface 3 is slightly bulged outward body, so that further casting material is saved. The transitions between the side surfaces 5,6 and the upper surface 3 are also formed with small radii. The bearing blocks 11,12 have U-shaped front surfaces 13,14, wherein the open sides 17,18 on the bottom 4 are. The U-shaped cross-section of the bearing blocks 11, 12 increases slightly in the direction of the side surfaces 5.6. The mounting plates 9,10 are chamfered for reasons of material savings.

In Figur 8 und 9 ist ein Körper 2 gezeigt, dessen Seitenflächen 5,6 unterschiedliche Krümmungen aufweisen. Die Seitenfläche 5 verläuft wie im Ausführungsbeispiel gemäß Figur 1-3 bereits beschrieben parabelförmig und grenzt an eine ebene obere Fläche 3. Die Seitenfläche 6 weist einen zur Seitenfläche 5 unterschiedlichen parabelförmigen Verlauf auf, der dadurch gekennzeichnet ist, daß die Seitenfläche 6 übergangslos in der oberen Fläche 3 ausläuft. Die obere Fläche 3 ist also einseitig eben und einseitig gewölbt ausgebildet.In FIGS. 8 and 9 a body 2 is shown whose side surfaces 5, 6 have different curvatures. The side surface 5 extends as in the embodiment according to Figure 1-3 already described parabolic and adjacent to a flat top surface 3. The side surface 6 has a different from the side surface 5 parabolic course, which is characterized in that the side surface 6 smoothly terminates in the upper surface 3. The upper surface 3 is thus formed on one side flat and curved on one side.

Allen drei Ausführungsbeispielen ist gemeinsam, daß sie an der Unterseite 4, wie aus Figur 3 ersichtlich zwei Bohrungen 19,20 aufweisen. Diese Bohrungen 19,20 dienen während der Fertigung nach dem Gießprozeß zur Zentrierung und Befestigung des Werkstückes an weiteren Bearbeitungsstätten. Hierdurch können insbesondere in der maschinellen Fertigung keine Fehlausrichtungen des Werkstückes vorkommen.All three embodiments have in common that they are at the bottom 4, as shown FIG. 3 can be seen two holes 19,20. These holes 19,20 are used during production after the casting process for centering and mounting of the workpiece at other machining sites. As a result, no misalignments of the workpiece can occur, especially in machine manufacturing.

Bezugszeichenreference numeral

11
Türschließerdoor closers
22
Körperbody
33
obere Flächeupper surface
44
Unterseitebottom
55
Seitenflächeside surface
66
Seitenflächeside surface
77
Stirnseitefront
88th
Stirnseitefront
99
Montageplattemounting plate
1010
Montageplattemounting plate
1111
Lagerblockbearing block
1212
Lagerblockbearing block
1313
Frontflächefront surface
1414
Frontflächefront surface
1515
Basisseitebase side
1616
Basisseitebase side
1717
offene Seiteopen side
1818
offene Seiteopen side
1919
Bohrungdrilling
2020
Bohrungdrilling
2121
Kanalchannel
2222
Wellewave
2323
Kolbenpiston
2424
Schließerfedercloser spring
2525
Zahnradgear
2626
Zahnstangerack
2727
Achsbohrungaxle bore
2828
Randedge
2929
Nutgroove
3030
Dichtringseal
3131
Scheibedisc
3232
Sinterbuchsesintered bush
3333
Lagerschalebearing shell
3434
Randkanteedge
3535
Ringdichtungring seal
3636
Ringdichtungring seal
3737
Sinterbuchsensintered bushes

Claims (10)

  1. A door closer (1) having an oblong body (2) formed in one piece, comprising an upper plane surface (3) arranged in parallel with a lower face (4), two opposite lateral surfaces (5, 6) connecting the lower face (4) and the upper surface (3), and two fore-parts (7,8) limiting the body (2) in the longitudinal extension thereof, mounting plates (9, 10) protruding from the fore-parts (7, 8) in the longitudinal extension of the lower face (4), a shaft (22) being rotatably supported at both lateral surfaces (5, 6) and being able to be connected to a rod assembly, wherein the lateral surfaces (5, 6) are curved and/or extend bevelled toward each other, starting at the lower face (4) and ending at the upper surface (3), the shaft (22) is disposed in bearing blocks (11, 12) in a central position between the lower face (4) and the upper surface (3), the bearing blocks (11, 12) being massive and formed integrally on the body (2) by increasing the thickness of the lateral surfaces (5, 6) at the outside from the remaining surface to frontal surfaces (13, 14) ascending from the lower face (4),
    characterized in that
    one end of the shaft (22) is rotatably supported in a bearing shell (33) and that the bearing shell (33) may be inserted into an axle borehole (27) while elastically deflecting the body (2) and can be fixed after an elastic recovery thereof,
    the axle borehole (27) has two different diameters, and
    the shaft (22), at least partially, has a larger diameter than the axle borehole (27) having the smaller diameter.
  2. The door closer (1) of claim 1, characterized in that the lateral surfaces (5, 6) extend differently oblique and/or with a different curvature.
  3. The door closer (1) of claim 1 or 2, characterized in that the lateral surfaces (5, 6) extend in a parabolic shape.
  4. The door closer (1) of one of claims 1 to 3, characterized in that the upper surface (3) extends at least partially convex.
  5. The door closer (1) of one of claims 1 to 4, characterized in that the bearing blocks (11, 12) assume the shapes of their frontal surfaces (13, 14).
  6. The door closer (1) of one of claims 1 to 5, characterized in that the frontal surfaces (13, 14) are oriented vertically with respect to the lower face (4).
  7. The door closer (1) of one of claims 1 to 6, characterized in that the frontal surfaces (13, 14) are formed as a trapezoid or U-shaped.
  8. The door closer (1) of one of claims 1 to 7, characterized in that the bearing blocks (11, 12) do not protrude beyond the upper surface (3).
  9. The door closer (1) of one of claims 1 to 8, characterized in that boreholes (19, 20) are recessed in the lower face (4).
  10. The door closer (1) of one of claims 1 to 9, characterized in that the body (2) is made of a cast material in a non-massive manner.
EP99924892A 1998-08-03 1999-05-06 Door closer Expired - Lifetime EP1042576B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19834889 1998-08-03
DE1998134889 DE19834889A1 (en) 1998-08-03 1998-08-03 Door closer has structured body surfaces in a lightweight casting to give a compact and visually attractive unit
DE29822258U 1998-12-16
DE29822258U DE29822258U1 (en) 1998-12-16 1998-12-16 Door closer
PCT/EP1999/003113 WO2000008285A1 (en) 1998-08-03 1999-05-06 Door closer

Publications (3)

Publication Number Publication Date
EP1042576A1 EP1042576A1 (en) 2000-10-11
EP1042576B1 EP1042576B1 (en) 2004-05-06
EP1042576B2 true EP1042576B2 (en) 2010-07-28

Family

ID=26047874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99924892A Expired - Lifetime EP1042576B2 (en) 1998-08-03 1999-05-06 Door closer

Country Status (25)

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US (1) US6421876B1 (en)
EP (1) EP1042576B2 (en)
JP (1) JP4523161B2 (en)
CN (1) CN1114023C (en)
AR (1) AR023322A1 (en)
AT (1) ATE266139T1 (en)
AU (1) AU743753B2 (en)
BG (1) BG63701B1 (en)
BR (1) BR9906645A (en)
CA (1) CA2305214C (en)
CZ (1) CZ297506B6 (en)
DE (1) DE59909399D1 (en)
DK (1) DK1042576T4 (en)
ES (1) ES2221386T5 (en)
HK (1) HK1032092A1 (en)
HU (1) HU223620B1 (en)
NO (1) NO320597B1 (en)
NZ (1) NZ503115A (en)
PL (1) PL190982B1 (en)
PT (1) PT1042576E (en)
RU (1) RU2211905C2 (en)
SK (1) SK286172B6 (en)
TR (1) TR200000495T1 (en)
UY (1) UY25614A1 (en)
WO (1) WO2000008285A1 (en)

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Publication number Publication date
NO20001068D0 (en) 2000-03-02
JP2002522671A (en) 2002-07-23
SK4452000A3 (en) 2000-12-11
RU2211905C2 (en) 2003-09-10
HUP0003821A2 (en) 2001-03-28
BG104231A (en) 2000-08-31
DK1042576T3 (en) 2004-09-13
CA2305214A1 (en) 2000-02-17
PL339576A1 (en) 2000-12-18
CZ297506B6 (en) 2007-01-03
PL190982B1 (en) 2006-02-28
SK286172B6 (en) 2008-04-07
UY25614A1 (en) 1999-09-27
HU223620B1 (en) 2004-10-28
JP4523161B2 (en) 2010-08-11
DE59909399D1 (en) 2004-06-09
AR023322A1 (en) 2002-09-04
CN1114023C (en) 2003-07-09
AU4139599A (en) 2000-02-28
HUP0003821A3 (en) 2002-02-28
TR200000495T1 (en) 2000-10-23
ES2221386T5 (en) 2010-12-10
NZ503115A (en) 2001-09-28
EP1042576B1 (en) 2004-05-06
PT1042576E (en) 2004-09-30
BG63701B1 (en) 2002-09-30
BR9906645A (en) 2000-08-01
AU743753B2 (en) 2002-02-07
CZ20001054A3 (en) 2001-09-12
NO320597B1 (en) 2005-12-27
WO2000008285A1 (en) 2000-02-17
HK1032092A1 (en) 2001-07-06
CN1273620A (en) 2000-11-15
ES2221386T3 (en) 2004-12-16
CA2305214C (en) 2006-06-27
EP1042576A1 (en) 2000-10-11
ATE266139T1 (en) 2004-05-15
US6421876B1 (en) 2002-07-23
NO20001068L (en) 2000-03-02
DK1042576T4 (en) 2011-01-10

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