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EP0292743B1 - Door closer with a closing force indicating device - Google Patents

Door closer with a closing force indicating device Download PDF

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Publication number
EP0292743B1
EP0292743B1 EP88107117A EP88107117A EP0292743B1 EP 0292743 B1 EP0292743 B1 EP 0292743B1 EP 88107117 A EP88107117 A EP 88107117A EP 88107117 A EP88107117 A EP 88107117A EP 0292743 B1 EP0292743 B1 EP 0292743B1
Authority
EP
European Patent Office
Prior art keywords
door closer
closure force
indicating
indicating device
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88107117A
Other languages
German (de)
French (fr)
Other versions
EP0292743A1 (en
Inventor
Gerhard SCHRÖDER
Dieter Mauckner
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.)
Gretsch Unitas GmbH Baubeschlaege
Original Assignee
Gretsch Unitas GmbH Baubeschlaege
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 Gretsch Unitas GmbH Baubeschlaege filed Critical Gretsch Unitas GmbH Baubeschlaege
Publication of EP0292743A1 publication Critical patent/EP0292743A1/en
Application granted granted Critical
Publication of EP0292743B1 publication Critical patent/EP0292743B1/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
    • 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
    • E05F15/00—Power-operated mechanisms for wings
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/696—Screw mechanisms
    • E05Y2201/702—Spindles; Worms
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable
    • E05Y2600/20—Adjustable with specific transmission movement
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/56—Positioning, e.g. re-positioning, or pre-mounting
    • E05Y2600/58—Positioning, e.g. re-positioning, or pre-mounting by using indicators or markings, e.g. scales
    • 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 with adjustable closing force and a closing force display device which consists of a transmitter which can be moved by the change in the closing force and a display unit which interacts with it.
  • a door closer is known for example from DE-PS 32 24 300.
  • the closing force of the door closer during commissioning is set depending on the size or weight of the door to be closed. It then remains unchanged for a long time. It is often not necessary to readjust the clamping force for years. From this point of view, it is uneconomical to equip the door closer with an integrated closing force display device.
  • the object of the invention is therefore to design a door closer of the type mentioned in such a way that the use of a door closer housing as with a door closer without a closing force display device is possible, but the closing force can nevertheless be displayed. If the closing force or a "closing force display device" is indicated here, this naturally includes the fact that the closing force can also be set with the aid of this display device, but the closing force is set in a known manner and with the conventional means, wherein the current closing force is displayed on the closing force display device and can be read.
  • the door closer is designed with a closing force display device according to the preamble of claim 1 in accordance with the characterizing part of this claim.
  • the display unit of the closing force display device can be detachably attached or held to the housing or the like of the door closer, it can be easily removed after adjusting the closing force.
  • the display unit must be assigned to the door closer housing in a precisely predetermined manner, because it interacts with a transmitter, particularly located inside the door closer, and therefore a precisely defined spatial assignment of the display unit to the transmitter is essential.
  • an assignment of the encoder to an adjustable display element of the display device is necessary such that the display element indicates, for example, the closing force zero when there is no closing force.
  • the exact assignment of the display device to the housing of the door closer can be achieved in a relatively simple manner and in a wide variety of ways.
  • Such a possibility offers a development of the invention, which consists in that the display device and the housing of the door closer can be coupled via a plug connection.
  • the display device and the housing of the door closer can be coupled via a plug connection.
  • one or more existing plug-in receptacles of the housing can be used or, if necessary, attached to them.
  • the insertion elements must accordingly be provided on the display device.
  • a preferred embodiment of the invention is characterized in that the display device has at least one, but preferably two insertion pins or the like, and the door closer housing or the like has a number of insertion receptacles corresponding to the number of pins. In the case of round insertion pins, the insertion receptacles are of course bores.
  • the term "door closer housing” also includes the housing cover. If any additional parts, for example fastening devices, are firmly attached to the door closer housing, the display device can also be attached to it. It is only important in each case that the display device assumes a defined position with respect to the transmitter of the door closer.
  • the display device has at least one stop element which interacts with a stop surface of the door closer housing or the like.
  • This stop element or a plurality of such stop elements can be provided in addition to the plug-in pins mentioned or the like.
  • less consideration is given to using either the stop elements or the insertion pins on one and the same type of door closer, or even both, to align them with the door closer rather, this opens up the possibility of using the display device with two different door closer housings or door closer types, the insertion pins being used in one embodiment, for example, and the stop element or elements being used for the exact alignment in the other.
  • the stop elements must be attached in such a way that the display unit can be clearly and securely attached to the intended location of the door closer housing and that incorrect attachment is impossible.
  • the door closer 1 according to FIGS. 1 and 4 is a so-called floor door closer, while the door closer 2 of FIG. 2 is a so-called overhead door closer. Even when the two door closer types are broken off, it can easily be seen that the housing 3 of the door closer 1 differs formally from the housing 4 of the door closer 2. In addition, the housing 3 of the door closer 1 is inserted in a known manner in a so-called floor box or concrete box 5. Nevertheless, in this embodiment as well, the display unit designed as a display device 6 is not attached to the concrete box 5, but to the housing 3, to be precise on the housing cover 7. It is always the same display device 6, however, as a comparison of FIGS. 1 and 2 shows used in two positions turned through 180 °.
  • the two door closers are essentially of a known type.
  • the floor closer 1 has one Door closer shaft 8, which protrudes above the cover 7 and is connected to the door to be closed, to be precise the lower end of the door, in a rotationally fixed manner.
  • the closing force results from a return or closing spring 9, which concentrically surrounds a connecting rod 10 to the hydraulic piston, not shown, in the exemplary embodiment. Its closing shaft end is supported according to FIG. 4 on a spring plate 11, which is part of an adjusting mechanism 12 for the closing force.
  • the worm wheel 15 works together with a worm (not visible in FIG. 4), the axis of which can be guided outwards through the housing.
  • a corresponding axis of rotation 16 for adjusting the closing force can be seen in FIG. 2, which is equipped with an internal hexagon 17 for attaching an adjusting tool. The latter is only to be understood as an example.
  • each closing force is assigned a certain displacement position of the spring plate 11 or a certain lateral distance from the geometric axis 18 of the closing shaft 8.
  • Any other solid surface or the like can be used as a reference. of the door closer housing 3 or 4, for example the mentioned housing end face 19 of the door closer 2 (FIG. 2).
  • special receptacles on the housing 3 or 4 are also suitable, provided that the display device 6 is pluggably connected to the housing in the manner explained below.
  • a permanent magnet 20 is attached to the spring plate 11 as a transmitter, the position of which can be precisely detected without contact through the housing 3, 4 or the cover 7.
  • the cover 7 and, in FIG. 2, the housing 4 - at least in the area of the display device 6 - as well as the display device 6 to be explained in more detail below or its plate-shaped base body 21 made of non-magnetizable material.
  • Aluminum and the like can be used for the housing and the cover, for example, light metal, while plastic can be used well for the display device.
  • the display device 6 is equipped with two spaced-apart insertion pins 22 and 23 in this embodiment. However, they are not used in the door closer type 2 shown there. But you can see from this figure that they protrude vertically above the plate surface 24 of the base body 21, If this plate surface 24 according to FIG. 2 rests, for example, on the cover 7 of the door closer 1, each insertion pin engages in an insertion receptacle (not shown) of the door closer housing in question .
  • the position of the display device 6 with respect to the door closer, and in particular with respect to the transmitter 20 located above, is thus precisely defined. As a result, the display device can be removed at any time and reattached if necessary without there being any deviations when reading the closing force.
  • stop elements 25, 26 and 27 are provided. Each works with a predetermined stop surface of the door closer 1, 2 or its housing 3, 4 in such a way that when the stop element is correctly attached to its housing surface or the like, the display device 6 has the desired assignment to the transmitter or magnet that is correct for displaying the closing force 20 is present. From Fig. 1 it can be seen that when using the insertion pin 22, 23, the stop elements 25, 26 and 27 remain unused d. H. protrude upwards with a floor closer.
  • the three stop elements 25, 26, 27 are assigned to the edge area of the base body 21.
  • the stop elements 25 and 26 run parallel to one another, while the stop element 27 is offset from each other by 90 °.
  • the clear distance between the two parallel stop elements 25 and 26 then corresponds approximately to the width of the door closer housing at the location provided for attaching the display device 6. In this way, the position of the display device 6 is determined in the transverse direction. In the longitudinal direction, the exact position fixation of the display device 6 with respect to the housing 4 is achieved with the aid of the third stop element 27, which is applied to the end face 19 of the housing 4.
  • the exact setting of the display can be done device 6 in the longitudinal direction 29 by, for example, aligning the front edge 30 of the plate-shaped base body 21 with respect to a mark (not shown) of the associated housing surface. Furthermore, it is easy to see that one of the two stop elements 25 and 26 can also be omitted, and nevertheless an exact alignment of the display device 6 with respect to the housing 3, 4 is possible. In this case, however, a corresponding instruction must be given to the user of the display device. This also applies in the absence of the stop element 27. Such an instruction can also be given, for example, in the form of two transverse markings on the housing, which cooperate with corresponding edges of the base body 21 and which do not permit interaction when the attachment is incorrect.
  • the stop elements are essentially strip-shaped. But they can still be designed in a special way according to the embodiment of the drawing.
  • an inward-facing stop bar 31 and 32 is attached to the top of each of the two stop elements 25 and 26.
  • the stop elements 25 and 26 have an angular cross section at their two ends, for example due to molded-on widenings 33 and 34, these widenings forming the one angle leg.
  • Their free surface is slightly sloping towards the inside of the plate surface 35. This is expedient if the assigned surface of the door closer housing 4 (FIG. 2) is shaped accordingly. But it can also be useful be, if one does not want to support the display device 6 for certain reasons with a differently shaped door closer housing surface, for example on a flat surface.
  • the display device 6 is equipped with a display element 36. This interacts with a display scale 37.
  • a display scale 37 In the exemplary embodiment, there are, for example, five marks 38, each of which is assigned a number. Instead, a scale with corresponding values of the closing force to be read can also be provided.
  • the display device offers a more universal use with a neutral display scale 37. The latter is elongated because the permanent magnet 20, or generally speaking, the movable sensor performs a linear movement when the closing force is changed.
  • the marks 38 preferably correspond to the corresponding DIN standard.
  • the closing torques are specified, which must be at least available for a closing angle of 2 ° and 90 °.
  • the display member 36 is preferably a transparent tube 39 in which, for example, a magnetized ball 40 is located. This is attracted by the magnet 20 and is thus held in the position which corresponds to the current position of the spring plate 11 and thus also to the current closing force. If, according to FIG. 2, the closing force corresponds, for example, to the scale value 3, the actual closing force can be found in an associated table take, or vice versa, change the closing force, for example by rotating the axis of rotation 16 (FIG. 2) until the ball 40 or another display element is assigned to the desired scale value, for example the value "2".
  • the display element 40 does not necessarily have to be a sphere, but rather, for example, magnetized particles are also possible, which can float in a liquid in the tube 39. They then aggregate at the location assigned to the magnet 20. In a very advantageous manner, such a display device, in particular with a ball, can also be used as a spirit level for aligning the door closer housing 3, 4.
  • a magnet 20 instead of a magnet 20, it is of course also possible to use another suitable transmitter, for example an electrical signal transmitter that is equipped with a permanent battery.
  • the display device must be designed as a suitable electrical display device.
  • the display member 36 is in an opening in the frame or plate-shaped base body 21. This has the decisive advantage that its display element 40 is visible from both sides of the plate. In order to be able to read or adjust the closing force from both sides, a display scale 42 is also attached to the plate surface 35.
  • the scales 37 and 42 do not necessarily have to match. In addition, the distance between the tick marks or marks depends on the spring characteristics.
  • the closing force is usually changed to the intended value using an adjustment tool.
  • an adjustment tool not only a closing force display device 6, but also a corresponding adjustment tool is required to set the closing force. So that you always have both at hand, a particularly preferred embodiment of the invention provides that the display device 6 simultaneously forms such an adjustment tool.
  • the display device 6 is provided with a polygonal receptacle 43, for example a square or hexagonal opening, so that it can be plugged onto a pin of the corresponding cross section of the closing force adjusting mechanism 12.
  • both can be connected via a loose intermediate link if the adjustment mechanism only has a hexagon socket 17 or a receptacle with a different polygonal cross section and only a polygonal receptacle is provided on the display device 6.
  • a square or hexagonal pin can also be attached or molded directly on the display device 6.
  • the display device 6 is also used as a holder for at least one but preferably two different adjusting tools 44, 45.
  • the stop element 27 can be designed as a clamp for one of these adjusting tools and, provided that this has a polygonal insertion pin 46, it can be used with the same cross section in Insert the polygon holder 43.
  • the other adjustment tool 44 one expediently forms the two widenings 33 and 34 of the stop element 26 into clamping brackets.
  • the closing force of the lock latch must be precisely matched to the closing force of the door closer. In this respect, one must also check the locking force of the lock latch before adjusting the closing force of the door closer. Therefore, it is particularly advantageous if the display device 6 is provided or connected to a measuring device for the lock latch closing force in a manner not shown in detail.

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Description

Die Erfindung bezieht sich auf einen Türschließer mit einstellba­rer Schließkraft sowie einer Schließkraft-Anzeigevorrichtung, die aus einen durch die Schließkraftveränderung bewegbaren Geber so­wie einer damit zusammenwirkenden Anzeige-Einheit besteht. Ein derartiger Türschließer ist beispielsweise durch die DE-PS 32 24 300 bekannt geworden. Im Normalfalle wird die Schließkraft des Türschließers bei desssen Inbetriebnahme abhängig von der Größe bzw. dem Gewicht der zu schließenden Tür eingestellt. Sie bleibt dann über lange Zeit unverändert. Oft ist ein Nachstellen der Schließkraft über Jahre hinaus nicht erforderlich. Aus dieser Sicht ist es unwirtschaftlich, den Türschließer mit einer integrierten Schließkraft-Anzeigevorrichtung auszustatten.The invention relates to a door closer with adjustable closing force and a closing force display device which consists of a transmitter which can be moved by the change in the closing force and a display unit which interacts with it. Such a door closer is known for example from DE-PS 32 24 300. Normally the closing force of the door closer during commissioning is set depending on the size or weight of the door to be closed. It then remains unchanged for a long time. It is often not necessary to readjust the clamping force for years. From this point of view, it is uneconomical to equip the door closer with an integrated closing force display device.

Die Aufgabe der Erfindung besteht infolgedessen darin, einen Tür­schließer der eingangs genannten Art so auszubilden, daß die Ver­wendung eines Türschließer-Gehäuses wie bei einem Türschließer ohne Schließkraft-Anzeigevorrichtung möglich ist, trotzdem aber die Schließkraft angezeigt werden kann. Wenn hier vom Anzeigen der Schließkraft bzw. einer "Schließkraft-Anzeigevorrichtung" die Rede ist, so beinhaltet dies selbstverständlich, daß unter Zuhil­fenahme dieser Anzeigevorrichtung die Schließkraft auch einge­stellt werden kann, jedoch erfolgt die Einstellung der Schließ­kraft in bekannter Weise und mit den herkömmlichen Mitteln, wobei die momentan vorhandene Schließkraft über die Schließkraft-Anzei­gevorrichtung angezeigt wird und abgelesen werden kann.The object of the invention is therefore to design a door closer of the type mentioned in such a way that the use of a door closer housing as with a door closer without a closing force display device is possible, but the closing force can nevertheless be displayed. If the closing force or a "closing force display device" is indicated here, this naturally includes the fact that the closing force can also be set with the aid of this display device, but the closing force is set in a known manner and with the conventional means, wherein the current closing force is displayed on the closing force display device and can be read.

Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, daß der Türschließer mit Schließkraft-Anzeigevorrichtung gemäß dem Oberbegriff des Anspruchs 1 entsprechend dem kennzeichnenden Teil dieses Anspruchs ausgebildet ist. Nachdem nunmehr die Anzeige-­Einheit der Schließkraft-Anzeigevorrichtung abnehmbar am Gehäuse od. dgl. des Türschließers angebracht oder gehalten werden kann, laßt sie sich nach dem Einstellen der Schließkraft leicht abneh­men. Insofern kann man diese Anzeige-Einheit nicht nur für diesen einen Türschließer, sondern zumindest für jeden anderen Tür­schließer gleicher Bauart verwenden. Deshalb tritt also, über die Serie gesehen, auf jeden Fall eine Verringerung der Herstellungs­kosten ein. Außerdem kann man auch bestehende Türschließer leicht nachrüsten. Im übrigen ist eine Abänderung des Türschließer-Ge­häuses, wie man es vor der Verwendung einer Schließkraft-Anzeige­vorrichtung verwendet hat, nicht notwendig. Selbstverständlich muß die Anzeige-Einheit dem Türschließer-Gehäuse in genau vorge­gebener Weise zugeordnet werden, weil sie mit einem, insbesondere im Innern des Türschließers befindlichen Geber zusammenwirkt und deshalb eine genau festgelegte räumliche Zuordnung der Anzeige-­Einheit zum Geber unerläßlich ist. Vor allen Dingen ist eine Zu­ordnung des Gebers zu einem verstellbaren Anzeigeglied des Anzei­gegeräts derart erforderlich, daß das Anzeigeglied beispielsweise die Schließkraft Null anzeigt, wenn keine Schließkraft vorhanden ist. Die genaue Zuordnung des Anzeigegeräts zum Gehäuse des Tür­schließers kann man auf relativ einfache Weise und die verschie­densten Arten erreichen.To achieve this object, it is proposed according to the invention that the door closer is designed with a closing force display device according to the preamble of claim 1 in accordance with the characterizing part of this claim. Now that the display unit of the closing force display device can be detachably attached or held to the housing or the like of the door closer, it can be easily removed after adjusting the closing force. In this respect, you can use this display unit not only for this one door closer, but at least for every other door closer of the same type. Therefore, seen in series, there is definitely a reduction in manufacturing costs. You can also easily retrofit existing door closers. Otherwise, a modification of the door closer housing, as was used before the use of a closing force indicator, is not necessary. Of course, the display unit must be assigned to the door closer housing in a precisely predetermined manner, because it interacts with a transmitter, particularly located inside the door closer, and therefore a precisely defined spatial assignment of the display unit to the transmitter is essential. Above all, an assignment of the encoder to an adjustable display element of the display device is necessary such that the display element indicates, for example, the closing force zero when there is no closing force. The exact assignment of the display device to the housing of the door closer can be achieved in a relatively simple manner and in a wide variety of ways.

Eine solche Möglichkeit bietet eine Weiterbildung der Erfindung, welche darin besteht, daß das Anzeigegerät und das Gehäuse des Türschließers über eine Steckverbindung kuppelbar sind. In diesem Falle kann man eine oder mehrere bereits vorhandene Einsteckauf­nahmen des Gehäuses ausnutzen oder ggf. daran anbringen.Such a possibility offers a development of the invention, which consists in that the display device and the housing of the door closer can be coupled via a plug connection. In this case, one or more existing plug-in receptacles of the housing can be used or, if necessary, attached to them.

Beim genannten Ausführungsbeispiel müssen dann die Einsteckelemente dementsprechend am Anzeigegerät vorgesehen sein.In the exemplary embodiment mentioned, the insertion elements must accordingly be provided on the display device.

Eine bevorzugte Ausführungsform der Erfindung kennzeichnet sich dadurch, daß das Anzeigegerät wenigstens einen, vorzugsweise aber zwei Einsteckzapfen od. dgl., und das Türschließergehäuse od. dgl. eine der Zapfenzahl entsprechende Anzahl von Einsteck-Auf­nahmen aufweist. Bei runden Einsteckzapfen sind die Einsteck-Auf­nahmen selbstverständlich Bohrungen. Der Begriff "Türschließerge­häuse" umfasst auch den Gehäusedeckel. Sofern am Türschließerge­häuse irgendwelche Zusatzteile, beispielsweise Befestigungsein­richtungen, fest angebracht sind, so kann man das Anzeigegerät auch daran ansetzen. Wichtig ist jeweils nur, daß das Anzeigege­rät gegenüber dem Geber des Türschließers eine definierte Lage annimmt.A preferred embodiment of the invention is characterized in that the display device has at least one, but preferably two insertion pins or the like, and the door closer housing or the like has a number of insertion receptacles corresponding to the number of pins. In the case of round insertion pins, the insertion receptacles are of course bores. The term "door closer housing" also includes the housing cover. If any additional parts, for example fastening devices, are firmly attached to the door closer housing, the display device can also be attached to it. It is only important in each case that the display device assumes a defined position with respect to the transmitter of the door closer.

Eine andere Variante der Erfindung ist dadurch gekennzeichnet, daß das Anzeigegerät mindestens ein Anschlagelement aufweist, welches mit einer Anschlagfläche des Türschließergehäuses od. dgl. lagefixierend zusammenwirkt. Dieses Anschlagelement oder auch mehrere solche Anschlagelemente können zusätzlich zu den er­wähnten Einsteckzapfen od. dgl. vorhanden sein. Es ist dabei je­doch weniger daran gedacht, an ein und demselben Türschließertyp wahlweise die Anschlagelemente oder die Einsteckzapfen auszunut­zen oder gar beides zum Ausrichten gegenüber dem Türschließerge­ häuse heranzuziehen, vielmehr eröffnet sich hierdurch die Mög­lichkeit, das Anzeigegerät mit zwei verschiedenen Türschließerge­häusen bzw. Türschließertypen zu verwenden, wobei bei der einen Ausführungsform beispielseweise die Einsteckzapfen und bei der anderen das oder die Anschlagelemente für das genaue Ausrichten benutzt werden. Die Anschlagelemente müssen so angebracht sein, daß ein eindeutiges und sicheres Anlegen des Anzeigegeräts an die vorgesehene Stelle des Türschließergehäuses möglich und ein fal­sches Ansetzen ausgeschlossen ist.Another variant of the invention is characterized in that the display device has at least one stop element which interacts with a stop surface of the door closer housing or the like. This stop element or a plurality of such stop elements can be provided in addition to the plug-in pins mentioned or the like. However, less consideration is given to using either the stop elements or the insertion pins on one and the same type of door closer, or even both, to align them with the door closer rather, this opens up the possibility of using the display device with two different door closer housings or door closer types, the insertion pins being used in one embodiment, for example, and the stop element or elements being used for the exact alignment in the other. The stop elements must be attached in such a way that the display unit can be clearly and securely attached to the intended location of the door closer housing and that incorrect attachment is impossible.

Weitere zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand der Ansprüche 5 bis 18. Vorteile des Tür­schließers mit seiner Schließkraft-Anzeigevorrichtung ergeben sich aus der nachfolgenden Beispiels beschreibung.Further expedient refinements of the invention are the subject of claims 5 to 18. Advantages of the door closer with its closing force display device result from the following example description.

Die Zeichnung zeigt zwei Ausführungsbeispiele der Erfindung. Hierbei stellen dar:

  • Fig. 1 perspektivisch die Draufsicht auf ein Anzeigegerät und einen abgebrochen dar­gestellten Türschließer einer ersten Bauform,
  • Fig. 2 dasselbe Anzeigegerät, jedoch an einem Türschließer anderer Bauart montiert, ebenfalls in perspektivischer Darstellung,
  • Fig. 3 wiederum perspektivisch, in Anlehnung an Fig. 1 eine erweiterte Ausbildung des Anzeigegeräts,
  • Fig. 4 einen Schnitt gemäß der Linie IV-IV der Fig. 1 durch den Türschließer.
The drawing shows two embodiments of the invention. Here represent:
  • 1 is a perspective top view of a display device and a broken door closer of a first design,
  • 2 the same display device, but mounted on a door closer of a different type, also in a perspective view,
  • 3 again in perspective, based on FIG. 1, an expanded design of the display device,
  • Fig. 4 shows a section along the line IV-IV of Fig. 1 by the door closer.

Der Türschließer 1 gemäß Fign. 1 und 4 ist ein sogenannter Boden-­Türschließer, während es sich beim Türschließer 2 der Fig. 2 um einen sogenannten Obentürschließer handelt. Selbst bei der abge­brochenen Darstellung der beiden Türschließertypen ist leicht zu sehen, daß das Gehäuse 3 des Türschließers 1 formlich vom Gehäuse 4 des Türschließers 2 abweicht. Außerdem ist das Gehäuse 3 des Türschließers 1 in bekannter Weise in einen sogenannten Bodenka­sten oder Betonkasten 5 eingesetzt. Trotzdem wird auch bei dieser Ausführungsform die als Anzeigegerät 6 ausgebildete Anzeigeein­heit nicht am Betonkasten 5, sondern am Gehäuse 3, genau gesagt am Gehäusedeckel 7, angesetzt. Es handelt sich jeweils um dassel­be Anzeigegerät 6, jedoch wird es, wie ein Vergleich der Fign. 1 und 2 zeigt, in zwei um 180° gewendeten Stellungen benutzt.The door closer 1 according to FIGS. 1 and 4 is a so-called floor door closer, while the door closer 2 of FIG. 2 is a so-called overhead door closer. Even when the two door closer types are broken off, it can easily be seen that the housing 3 of the door closer 1 differs formally from the housing 4 of the door closer 2. In addition, the housing 3 of the door closer 1 is inserted in a known manner in a so-called floor box or concrete box 5. Nevertheless, in this embodiment as well, the display unit designed as a display device 6 is not attached to the concrete box 5, but to the housing 3, to be precise on the housing cover 7. It is always the same display device 6, however, as a comparison of FIGS. 1 and 2 shows used in two positions turned through 180 °.

Die beiden Türschließer sind im wesentlichen von bekannter Bau­art. So besitzt beispielsweise der Boden-Türschließer 1 eine Türschließerwelle 8, welche über den Deckel 7 nach oben vorsteht und drehfest mit der zu schließenden Tür, genau gesagt dem unteren Türende, verbunden wird. Die Schließkraft resultiert aus einer Rückstell- oder Schließfeder 9, welche beim Ausführungsbeispiel eine Verbindungsstange 10 zum nicht gezeigten Hydraulikkolben konzentrisch umgibt. Ihr schließwellenseitiges Ende stützt sich gemäß Fig. 4 an einem Federteller 11 ab, der Teil eines Verstell­mechanismus 12 für die Schließkraft ist. Aufgrund der im Sinne des Doppelpfeils 13 verschiebbaren aber undrehbaren Lagerung des Federtellers und seiner Verbindung über ein Gewinde 14 mit einem rohrförmigen Ansatz eines Schneckenrads 15, bewirkt ein Drehen der letzteren ein Verschieben des Federtellers 11 und damit ab­hängig von der Drehrichtung ein Spannen oder Entspannen der Schließfeder 9. Auf diese Weise kann die Schließkraft dieses Tür­schließers den Erfordernissen entsprechend eingestellt werden. Das Schneckenrad 15 arbeitet mit einer in Fig. 4 nicht sichtbaren Schnecke zusammen, deren Achse durch das Gehäuse hindurch nach außen geführt sein kann. In Fig. 2 ist eine entsprechende Dreh­achse 16 zum Einstellen der Schließkraft zu sehen, die zum Anset­zen eines Einstellwerkzeugs mit einem Innensechskant 17 ausge­stattet ist. Letzterer ist nur beispielsweise zu verstehen. Aus­serdem kann statt einer Aufnahme auch ein Zapfen zum Ansetzen ei­nes mit einer passenden Aufnahme ausgestatteten aufsteckbaren Schlüssels od. dgl. vorgesehen sein. Vorteilhafter ist jedoch der in Fig. 2 zu sehende bündige Abschluß des Verstellmechanismus 12 mit dem Gehäuse bzw. der seitlichen Gehäusestirnfläche. Aus dem vorstehenden wird deutlich, daß jeder Schließkraft eine bestimmte Verschiebestellung des Federtellers 11 oder ein bestimmter seit­licher Abstand von der geometrischen Achse 18 der Schließwelle 8 zugeordnet ist. Als Referenz kann man auch jede andere feste Flä­che od.dgl. des Türschließergehäuses 3 bzw. 4, beispielsweise die erwähnte Gehäusestirnfläche 19 des Türschließers 2 (Fig. 2), wäh­len. An Stelle einer Fläche oder mehrerer Flächen kommen auch noch spezielle Aufnahmen am Gehäuse 3 bzw. 4 infrage, sofern das Anzeigegerät 6 mit dem Gehäuse in nachstehend noch erläuterter Weise steckbar verbunden ist.The two door closers are essentially of a known type. For example, the floor closer 1 has one Door closer shaft 8, which protrudes above the cover 7 and is connected to the door to be closed, to be precise the lower end of the door, in a rotationally fixed manner. The closing force results from a return or closing spring 9, which concentrically surrounds a connecting rod 10 to the hydraulic piston, not shown, in the exemplary embodiment. Its closing shaft end is supported according to FIG. 4 on a spring plate 11, which is part of an adjusting mechanism 12 for the closing force. Due to the sliding and non-rotatable mounting of the spring plate in the sense of the double arrow 13 and its connection via a thread 14 with a tubular extension of a worm wheel 15, rotating the latter causes the spring plate 11 to be displaced and thus, depending on the direction of rotation, to tension or relax the closing spring 9. In this way, the closing force of this door closer can be adjusted according to the requirements. The worm wheel 15 works together with a worm (not visible in FIG. 4), the axis of which can be guided outwards through the housing. A corresponding axis of rotation 16 for adjusting the closing force can be seen in FIG. 2, which is equipped with an internal hexagon 17 for attaching an adjusting tool. The latter is only to be understood as an example. In addition, instead of a receptacle, a pin for attaching an attachable key or the like equipped with a suitable receptacle can also be provided. However, the flush closure of the adjustment mechanism 12 with the housing or the lateral housing end face, which can be seen in FIG. 2, is more advantageous. From the Above it is clear that each closing force is assigned a certain displacement position of the spring plate 11 or a certain lateral distance from the geometric axis 18 of the closing shaft 8. Any other solid surface or the like can be used as a reference. of the door closer housing 3 or 4, for example the mentioned housing end face 19 of the door closer 2 (FIG. 2). Instead of a surface or a plurality of surfaces, special receptacles on the housing 3 or 4 are also suitable, provided that the display device 6 is pluggably connected to the housing in the manner explained below.

Wenn man also von außen die Lage eines verstellbaren Teils des Verstellmechanismus 12, insbesondere die Lage des Federtellers 11 in Bezug auf beispielsweise eine feste Fläche des Gehäuses 3 bzw. 4 erfassen kann, so läßt sich bei Verwendung eines entsprechend ausgebildeten Anzeigegeräts 6 in Verbindung mit einem Geber des Verstellmechanismus die Schließkraft leicht zur Anzeige bringen. Mit Hilfe dieser Anzeige kann dann selbstverständlich die Ein­stellung der Schließkraft vorgenommen werden.So if you can detect the position of an adjustable part of the adjustment mechanism 12, in particular the position of the spring plate 11 with respect to, for example, a fixed surface of the housing 3 or 4 from the outside, then when using a suitably designed display device 6 in conjunction with a Adjustment mechanism sender easily display the closing force. With the help of this display, the setting of the closing force can of course be made.

Beim Ausführungsbeispiel (Fig. 4) ist am Federteller 11 als Geber ein Permanentmagnet 20 angebracht, dessen Lage man berührungslos durch das Gehäuse 3, 4 bzw. den Deckel 7 hindurch exakt erfassen kann. Voraussetzung ist dabei allerdings, daß sich im Bereich dieses Magneten 20 keine ferromagnetischen Teile befinden. Infol­gedessen bestehen sowohl der Deckel 7 bzw. in Fig. 2 das Gehäuse 4 - zumindest im Bereich des Anzeigegeräts 6 - als auch das nach­stehend noch näher erläuterte Anzeigegerät 6 bzw. dessen platten­förmiger Grundkörper 21 aus nicht magnetisierbarem Material. Für das Gehäuse und den Deckel kann man beispielsweise Aluminium und dgl. Leichtmetall verwenden, während für das Anzeigegerät z.B. Kunststoff gut brauchbar ist.In the exemplary embodiment (FIG. 4), a permanent magnet 20 is attached to the spring plate 11 as a transmitter, the position of which can be precisely detected without contact through the housing 3, 4 or the cover 7. However, it is a prerequisite that there are no ferromagnetic parts in the area of this magnet 20. As a result, both the cover 7 and, in FIG. 2, the housing 4 - at least in the area of the display device 6 - as well as the display device 6 to be explained in more detail below or its plate-shaped base body 21 made of non-magnetizable material. Aluminum and the like can be used for the housing and the cover, for example, light metal, while plastic can be used well for the display device.

Aus Fig. 2 ersieht man, daß das Anzeigegerät 6 bei diesem Ausfüh­rungsbeispiel mit zwei im Abstand voneinander angebrachten Ein­steckzapfen 22 und 23 ausgestattet ist. Sie werden allerdings beim dort gezeigten Türschließertyp 2 nicht benutzt. Man erkennt aber aus dieser Figur, daß sie senkrecht über die Plattenfläche 24 des Grundkörpers 21 vorstehen, Wenn diese Plattenfläche 24 ge­mäß Fig. 2 beispielsweise auf dem Deckel 7 des Türschließers 1 aufliegt, so greift jeder Einsteckzapfen in eine nicht darge­stellte Einsteckaufnahme des betreffenden Türschließergehäuses ein. Damit ist die Lage des Anzeigegeräts 6 gegenüber dem Tür­schließer, und insbesondere gegenüber dem darüber befindlichen Geber 20, genau festgelegt. Infolgedessen kann man das Anzeigege­rät jederzeit abnehmen und im Bedarfsfalle wieder ansetzen, ohne daß es zu Abweichungen beim Ablesen der Schließkraft kommt. Dies ermöglicht, das Anzeigegerät 6 nicht nur mit diesem einen Tür­schließer, sondern zumindest mit allen Türschließern dieser Art zu verwenden. Darüberhinaus bietet aber das Anzeigegerät nach den Fign. 1 bis 4 die Möglichkeit, auch noch an andersartige Tür­schließer, oder genauer gesagt, an Türschließer mit anders ge­formtem Gehäuse ebenso präzise und wiederholbar genau anzuset­zen.From Fig. 2 it can be seen that the display device 6 is equipped with two spaced-apart insertion pins 22 and 23 in this embodiment. However, they are not used in the door closer type 2 shown there. But you can see from this figure that they protrude vertically above the plate surface 24 of the base body 21, If this plate surface 24 according to FIG. 2 rests, for example, on the cover 7 of the door closer 1, each insertion pin engages in an insertion receptacle (not shown) of the door closer housing in question . The position of the display device 6 with respect to the door closer, and in particular with respect to the transmitter 20 located above, is thus precisely defined. As a result, the display device can be removed at any time and reattached if necessary without there being any deviations when reading the closing force. This makes it possible to use the display device 6 not only with this one door closer, but at least with all door closers of this type. In addition, however, the display device according to FIGS. 1 to 4 the possibility to also apply to other types of door closers, or more precisely to door closers with a differently shaped housing, just as precisely and repeatably precisely.

Dies ist durch die Anbringung wenigstens eines Anschlagelements am Anzeigegerät möglich. Beim Ausführungsbeispiel sind drei der­artige Anschlagelemente 25, 26 und 27 vorgesehen. Jedes arbeitet mit einer vorbestimmten Anschlagfläche des Türschließers 1, 2 bzw. seines Gehäuses 3, 4 derart zusammen, daß bei korrekt an seiner Gehäusefläche od. dgl. anliegendem Anschlagelement das An­zeigegerät 6 die gewünschte und für die Anzeige der Schließkraft richtige Zuordnung zum Geber oder Magneten 20 vorliegt. Aus Fig. 1 ersieht man, daß bei Benutzung der Einsteckzapfen 22, 23 die Anschlagelemente 25, 26 und 27 unbenutzt bleiben d. h. bei einem Bodentürschließer nach oben vorstehen.This is possible by attaching at least one stop element to the display device. In the embodiment, three such stop elements 25, 26 and 27 are provided. Each works with a predetermined stop surface of the door closer 1, 2 or its housing 3, 4 in such a way that when the stop element is correctly attached to its housing surface or the like, the display device 6 has the desired assignment to the transmitter or magnet that is correct for displaying the closing force 20 is present. From Fig. 1 it can be seen that when using the insertion pin 22, 23, the stop elements 25, 26 and 27 remain unused d. H. protrude upwards with a floor closer.

Die drei Anschlagelemente 25, 26, 27 sind dem Randbereich des Grundkörpers 21 zugeordnet. Die Anschlagelemente 25 und 26 ver­laufen parallel zueinander, während das Anschlagelement 27 gegen­über beiden um jeweils 90° versetzt ist. Dabei entspricht dann der lichte Abstand der beiden parallelen Anschlagelemente 25 und 26 etwa der Breite des Türschließergehäuses an der für das Anset­zen des Anzeigegeräts 6 vorgesehenen Stelle. Auf diese Weise ist die Lage des Anzeigegeräts 6 in Querrichtung festgelegt. In Längsrichtung erreicht man die genaue Lagefixierung des Anzeige­geräts 6 gegenüber dem Gehäuse 4 mit Hilfe des dritten Anschlag­elements 27, welches an die stirnseitige Endfläche 19 des Gehäu­ses 4 angelegt wird. Wenn beispielsweise das Anschlagelement 27 nicht vorgesehen ist, so kann man das genaue Ansetzen des Anzei­ gegeräts 6 in Längsrichtung 29 dadurch erreichen, dass man bei­spielsweise die Stirnkante 30 des plattenförmigen Grundkörpers 21 gegenüber einer nicht gezeigten Marke der zugeordneten Gehäuse­fläche ausrichtet. Des weiteren ist leicht einzusehen, daß auch eines der beiden Anschlagelemente 25 und 26 entfallen kann und trotzdem ein genaues Ausrichten des Anzeigegeräts 6 gegenüber dem Gehäuse 3, 4 möglich ist. In diesem Falle muß allerdings eine entsprechende Anweisung an den Benutzer des Anzeigegeräts gegeben werden. Dies gilt auch beim Fehlen des Anschlagelements 27. Eine solche Anweisung kann beispielsweise auch in Form von zwei quer zueinander stehenden Markierungen am Gehäuse gegeben werden, die mit entsprechenden Kanten des Grundkörpers 21 zusammenwirken und die ein Zusammenwirken beim falschen Ansetzen nicht ermöglichen.The three stop elements 25, 26, 27 are assigned to the edge area of the base body 21. The stop elements 25 and 26 run parallel to one another, while the stop element 27 is offset from each other by 90 °. The clear distance between the two parallel stop elements 25 and 26 then corresponds approximately to the width of the door closer housing at the location provided for attaching the display device 6. In this way, the position of the display device 6 is determined in the transverse direction. In the longitudinal direction, the exact position fixation of the display device 6 with respect to the housing 4 is achieved with the aid of the third stop element 27, which is applied to the end face 19 of the housing 4. If, for example, the stop element 27 is not provided, the exact setting of the display can be done device 6 in the longitudinal direction 29 by, for example, aligning the front edge 30 of the plate-shaped base body 21 with respect to a mark (not shown) of the associated housing surface. Furthermore, it is easy to see that one of the two stop elements 25 and 26 can also be omitted, and nevertheless an exact alignment of the display device 6 with respect to the housing 3, 4 is possible. In this case, however, a corresponding instruction must be given to the user of the display device. This also applies in the absence of the stop element 27. Such an instruction can also be given, for example, in the form of two transverse markings on the housing, which cooperate with corresponding edges of the base body 21 and which do not permit interaction when the attachment is incorrect.

Die Anschlagelemente sind im wesentlichen von leistenförmiger Ge­stalt. Sie können aber nach dem Ausführungsbeispiel der Zeichnung noch in besonderer Weise gestaltet sein. Beispielsweise ist an jedem der beiden Anschlagelemente 25 und 26 oben eine nach innen weisende Anschlagleiste 31 bzw. 32 angebracht. Des weiteren haben die Anschlagelemente 25 und 26 durch beispielsweise angeformte Verbreiterungen 33 und 34 an ihren beiden Enden einen winkelför­migen Querschnitt, wobei diese Verbreiterungen den einen Winkel­schenkel bilden. Ihre freie Oberfläche ist gegenüber der Platten­fläche 35 nach innen hin leicht abfallend. Dies ist zweckmäßig, wenn die zugeordnete Fläche des Türschließergehäuses 4 (Fig. 2) dementsprechend geformt ist. Es kann aber auch dann von Nutzen sein, wenn man bei einer anders geformten Türschließer-Gehäuse­fläche, beispielsweise bei einer ebenen Fläche, das Anzeigegerät 6 aus bestimmten Gründen nicht unmittelbar darauf abstützen möchte.The stop elements are essentially strip-shaped. But they can still be designed in a special way according to the embodiment of the drawing. For example, an inward-facing stop bar 31 and 32 is attached to the top of each of the two stop elements 25 and 26. Furthermore, the stop elements 25 and 26 have an angular cross section at their two ends, for example due to molded-on widenings 33 and 34, these widenings forming the one angle leg. Their free surface is slightly sloping towards the inside of the plate surface 35. This is expedient if the assigned surface of the door closer housing 4 (FIG. 2) is shaped accordingly. But it can also be useful be, if one does not want to support the display device 6 for certain reasons with a differently shaped door closer housing surface, for example on a flat surface.

Das Anzeigegerät 6 ist mit einem Anzeigeglied 36 ausgestattet. Dieses wirkt mit einer Anzeige-Skala 37 zusammen. Beim Ausfüh­rungsbeispiel sind es beispielsweise fünf Marken 38, denen je­weils eine Zahl zugeordnet ist. Statt dessen kann man auch eine Skala mit entsprechenden Werten der abzulesenden Schließkraft vorsehen. Eine universellere Verwendung bietet das Anzeigegerät allerdings mit einer neutralen Anzeigeskala 37. Letztere ist lang­gestreckt, weil auch der Permanentmagnet 20, oder allgemein ge­sprochen, der bewegbare Geber beim Verändern der Schließkraft eine geradlinige Bewegung durchführt. Vorzugsweise stimmen die Marken 38 mit der entsprechenden DIN-Norm überein. Außerdem sind die Schließmomente festgelegt, die bei einem Schließwinkel von 2° und 90° mindestens vorhanden sein müssen.The display device 6 is equipped with a display element 36. This interacts with a display scale 37. In the exemplary embodiment, there are, for example, five marks 38, each of which is assigned a number. Instead, a scale with corresponding values of the closing force to be read can also be provided. The display device, however, offers a more universal use with a neutral display scale 37. The latter is elongated because the permanent magnet 20, or generally speaking, the movable sensor performs a linear movement when the closing force is changed. The marks 38 preferably correspond to the corresponding DIN standard. In addition, the closing torques are specified, which must be at least available for a closing angle of 2 ° and 90 °.

Beim Anzeigeglied 36 handelt es sich in bevorzugter Weise um ein durchsichtiges Röhrchen 39, in welchem sich beispielsweise eine magnetisierte Kugel 40 befindet. Diese wird vom Magneten 20 ange­zogen und auf diese Weise in der Position gehalten, welche der momentanen Stellung des Federtellers 11 und damit auch der momen­tanen Schließkraft entspricht. Wenn gemäß Figur 2 die Schließ­kraft beispielsweise dem Skalenwert 3 entspricht, so kann man über eine zugehörige Tabelle die tatsächliche Schließkraft ent­ nehmen, oder umgekehrt, die Schließkraft verändern, indem man beispielsweise die Drehachse 16 (Fig. 2) so lange dreht, bis die Kugel 40 oder ein anderes Anzeigelement dem gewünschten Skalen­wert, beispielsweise dem Wert "2" zugeordnet ist.The display member 36 is preferably a transparent tube 39 in which, for example, a magnetized ball 40 is located. This is attracted by the magnet 20 and is thus held in the position which corresponds to the current position of the spring plate 11 and thus also to the current closing force. If, according to FIG. 2, the closing force corresponds, for example, to the scale value 3, the actual closing force can be found in an associated table take, or vice versa, change the closing force, for example by rotating the axis of rotation 16 (FIG. 2) until the ball 40 or another display element is assigned to the desired scale value, for example the value "2".

Das Anzeigeelement 40 muß nicht unbedingt eine Kugel sein, viel­mehr kommen beispielsweise auch magnetisierte Teilchen infrage, die in einer im Röhrchen 39 befindlichen Flüssigkeit schwimmen können. Sie ballen sich dann an der Stelle zusammen, die dem Mag­neten 20 zugeordnet ist. In sehr vorteilhafter Weise kann man ein solches Anzeigegerät, insbesondere mit Kugel, auch als Wasserwage zum Ausrichten des Türschließergehäuses 3, 4 benutzen.The display element 40 does not necessarily have to be a sphere, but rather, for example, magnetized particles are also possible, which can float in a liquid in the tube 39. They then aggregate at the location assigned to the magnet 20. In a very advantageous manner, such a display device, in particular with a ball, can also be used as a spirit level for aligning the door closer housing 3, 4.

Anstelle eines Magneten 20 kann selbstverständlich auch ein ande­rer geeigneter Geber verwendet werden, beispielsweise ein elek­trischer Signalgeber, den man mit einer Dauerbatterie ausstattet. In diesem Falle muß das Anzeigegerät als hierzu passende elektri­sche Anzeigeeinrichtung ausgebildet sein.Instead of a magnet 20, it is of course also possible to use another suitable transmitter, for example an electrical signal transmitter that is equipped with a permanent battery. In this case, the display device must be designed as a suitable electrical display device.

Das Anzeigeglied 36 befindet sich in einem Durchbruch des rahmen- oder plattenförmigen Grundkörpers 21. Das hat den entscheidenden Vorteil, daß sein Anzeigeelement 40 von beiden Plattenseiten her sichtbar ist. Um auch von beiden Seiten her die Ablesung bzw. Einstellung der Schließkraft vornehmen zu können, ist auch an der­Plattenfläche 35 eine Anzeigeskala 42 angebracht. Die Skalen 37 und 42 müssen nicht notwendigerweise übereinstimmen. Außerdem ist der Abstand der Skalenstriche oder -marken von der Federcharakte­ristik abhängig.The display member 36 is in an opening in the frame or plate-shaped base body 21. This has the decisive advantage that its display element 40 is visible from both sides of the plate. In order to be able to read or adjust the closing force from both sides, a display scale 42 is also attached to the plate surface 35. The scales 37 and 42 do not necessarily have to match. In addition, the distance between the tick marks or marks depends on the spring characteristics.

Wie bereits ausgeführt, wird die Schließkraft in der Regel mit­tels eines Verstellwerkzeugs auf den vorgesehenen Wert geändert. Infolgedessen braucht man zum Einstellen der Schließkraft nicht nur eine Schließkraft-Anzeigevorrichtung 6, sondern auch ein ent­sprechendes Verstellwerkzeug. Damit man immer beides zur Hand hat, sieht eine besonders bevorzugte Ausgestaltung der Erfindung vor, daß das Anzeigegerät 6 gleichzeitig ein solches Verstell­werkzeug bildet. Zu diesem Zwecke ist es mit einer Mehrkantauf­nahme 43, beispielsweise einem Vierkant- oder Sechskantdurchbruch versehen, so daß es auf einen Zapfen entsprechenden Querschnitts des Schließkraft-Verstellmechanismus 12 aufgesteckt werden kann. Gegebenenfalls kann man beide über ein loses Zwischenglied ver­binden, falls der Verstellmechanismus lediglich einen Innensechs­kant 17 oder eine Aufnahme mit anderem Mehrkantquerschnitt auf­weist und auch am Anzeigegerät 6 nur eine Mehrkantaufnahme vorge­sehen ist. Statt letzterer kann man allerdings am Anzeigegerät 6 unmittelbar auch einen Vierkant- oder Sechskantzapfen anbringen bzw. anformen.As already stated, the closing force is usually changed to the intended value using an adjustment tool. As a result, not only a closing force display device 6, but also a corresponding adjustment tool is required to set the closing force. So that you always have both at hand, a particularly preferred embodiment of the invention provides that the display device 6 simultaneously forms such an adjustment tool. For this purpose, it is provided with a polygonal receptacle 43, for example a square or hexagonal opening, so that it can be plugged onto a pin of the corresponding cross section of the closing force adjusting mechanism 12. If necessary, both can be connected via a loose intermediate link if the adjustment mechanism only has a hexagon socket 17 or a receptacle with a different polygonal cross section and only a polygonal receptacle is provided on the display device 6. Instead of the latter, however, a square or hexagonal pin can also be attached or molded directly on the display device 6.

Eine andere oder zusätzliche Variante der Erfindung besteht da­rin, daß man gemäß Fig. 3 der Zeichnung das Anzeigegerät 6 auch als Halter für wenigstens ein vorzugsweise aber zwei verschiedene Verstellwerkzeuge 44, 45 ausnutzt. Zu diesem Zwecke kann man das Anschlagelement 27 als Klemmhalterung für eines dieser Verstell­werkzeuge ausbilden und, sofern dieses einen Mehrkant-Einsteck­zapfen 46 aufweist, kann man diesen bei gleichem Querschnitt in die Mehrkantaufnahme 43 einstecken. Für das andere Verstellwerk­zeug 44 bildet man zweckmäßigerweise die beiden Verbreiterungen 33 und 34 des Anschlagelements 26 zu Klemmhalterungen aus.Another or additional variant of the invention consists in that, according to FIG. 3 of the drawing, the display device 6 is also used as a holder for at least one but preferably two different adjusting tools 44, 45. For this purpose, the stop element 27 can be designed as a clamp for one of these adjusting tools and, provided that this has a polygonal insertion pin 46, it can be used with the same cross section in Insert the polygon holder 43. For the other adjustment tool 44 one expediently forms the two widenings 33 and 34 of the stop element 26 into clamping brackets.

In bestimmten Anwendungsfällen, beispielsweise bei Feuerschutztü­ren, muß die Schließkraft der Schloßfalle auf die Schließkraft des Türschließers genau abgestimmt sein. Infofern muß man vor dem Einstellen der Schließkraft des Türschließers auch die Schließ­kraft der Schloßfalle überprüfen. Deshalb ist es von besonderem Vorteil, wenn in nicht näher dargestellter Weise das Anzeigegerät 6 mit einem Meßgerät für die Schloßfallen-Schließkraft versehen oder verbunden ist.In certain applications, such as fire doors, the closing force of the lock latch must be precisely matched to the closing force of the door closer. In this respect, one must also check the locking force of the lock latch before adjusting the closing force of the door closer. Therefore, it is particularly advantageous if the display device 6 is provided or connected to a measuring device for the lock latch closing force in a manner not shown in detail.

Claims (18)

1. A door closer with an adjustable closure force and a closing force indicating device (6) which consists of a transmitter (20) adapted to be moved by the variation in closure force and an indicating unit which cooperates with the said transmitter (20), characterised in that the indicating unit is constructed as a detachable indicating instrument (6) which can be associated with the housing (3, 4) or the like of the door closer (1, 2) in a predetermined position.
2. A door closer with a closure force indicating device according to Claim 1, characterised in that the indicating instrument (6) and the housing (3, 4) of the door closer (1, 2) can be coupled by a plug-in connection.
3. A door closer with a closure force indicating device according to Claim 2, characterised in that the indicating instrument (6) comprises at least one but preferably two push-in studs (22, 23) or the like while the door closer housing (3, 4) or the like comprises a number of push-in housings corresponding to the number of studs.
4. A door closer with a closure force indicating device according to at least one of the preceding Claims, characterised in that the indicating instrument (6) comprises at least one stop element (25, 26, 27) which cooperates with an abutment surface (19) on the door closer housing (3, 4) or the like in such a way as to establish its position.
5. A door closer with a closure force indicating device according to Claim 4, characterised in that the indicating instrument (6) comprises a basic panel or frame-like body (21) and, associated with the marginal zone, two abutment elements (25, 26, 27) which project transversely to the plane of the basic body.
6. A door closer with a closure force indicating device according to Claim 5, characterised by three abutment elements (25, 26, 27) of which two extend substantially parallel with each other while the third (27) extends substantially at right-angles thereto.
7. A door closer with a closure force indicating device according to Claim 6, characterised in that the distance between the two substantially parallel abutment elements (25, 26) corresponds approximately to the width of the door closer housing (3, 4) in the region in which the measurement is taken.
8. A door closer with a closure force indicating device according to at least one of Claims 5 to 7, characterised in that the two substantially parallel abutment elements (25, 26) are at least partially of angular cross-section, the side (33, 34) of the angle which is parallel with the basic body being inclined towards its free end.
9. A door closer with a closure force indicating device according to at least one of the preceding Claims, characterised in that the push-in stud or studs (22, 23) or the like point in the opposite direction to the abutment elements (25, 26, 27).
10. A door closer with a closure force indicating device according to at least one of the preceding Claims, characterised in that the indicating instrument (6) comprises a linear indicating member (36) which cooperates with a scale (37).
11. A door closer with a closure force indicating device according to Claim 10, characterised in that the indicating member (36) is a small transparent tube (39) with a magnetised indicating element (40) while the transmitter of the door closer is a magnet.
12. A door closer with a closure force indicating device according to Claim 11, characterised in that the indicating element is a magnetised ball (40), magnetised particles in a fluid or a like ferro-magnetic element.
13. A door closer with a closure force indicating device according to Claim 10, characterised in that the transmitter (20) is constructed as an electrical signal transmitter, particularly as a potentiometer, the indicating member (36) being constructed as an electrical indicating means.
14. A door closer with a closure force indicating device according to at least one of Claims 10 to 13, characterised in that the indicating member (36) is fixed in an aperture (41) in the basic body (21), an indicating scale (37, 42) being disposed on each of the two sides (24, 35) of the basic body (21), at the aperture (41).
15. A door closer with a closure force indicating device according to at least one of Claims 5 to 10, characterised in that at least one of the abutment elements (25, 26, 27) is constructed at the same time as a holder for a tool (44, 45) for adjusting the closure force, and is in particular constructed as a clamping support.
16. A door closer with a closure force indicating device according to at least one of the preceding Claims, characterised in that the indicating instrument (6) serves at the same time as a tool for adjusting the closure force mechanism (12) of the door closer (1, 2) and in particular comprises at least one polygonal housing (43) to receive a polygonal mandrel of the adjusting mechanism (12) or comprises at least one polygonal mandrel which is adapted to fit a polygonal housing in the adjusting mechanism (12).
17. A door closer with a closure force indicating device according to at least one of the preceding Claims, with a closure spring (9) of which the end associated with the closure force adjusting mechanism (12) is biased on a spring plate (11) or the like of the adjusting mechanism (12) which is adjustable in the longitudinal direction of the closure spring, characterised in that the spring plate (11) or the like is provided with a magnet (20), particularly a permanent magnet, or an electrical signal transmitter.
18. A door closer with a closure force indicating device according to at least one of the preceding Claims, characterised in that the indicating instrument (6) is provided with an instrument for measuring the closure force of the lock latch.
EP88107117A 1987-05-23 1988-05-04 Door closer with a closing force indicating device Expired - Lifetime EP0292743B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8707409U DE8707409U1 (en) 1987-05-23 1987-05-23 Door closer with a closing force indicator
DE8707409U 1987-05-23

Publications (2)

Publication Number Publication Date
EP0292743A1 EP0292743A1 (en) 1988-11-30
EP0292743B1 true EP0292743B1 (en) 1991-03-06

Family

ID=6808413

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Application Number Title Priority Date Filing Date
EP88107117A Expired - Lifetime EP0292743B1 (en) 1987-05-23 1988-05-04 Door closer with a closing force indicating device

Country Status (2)

Country Link
EP (1) EP0292743B1 (en)
DE (2) DE8707409U1 (en)

Cited By (9)

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Publication number Priority date Publication date Assignee Title
US7971316B2 (en) 2007-04-24 2011-07-05 Yale Security Inc. Door closer assembly
US8109038B2 (en) 2004-06-30 2012-02-07 Yale Security Inc. Door operator
US8415902B2 (en) 2010-04-16 2013-04-09 Yale Security Inc. Door closer with calibration mode
US8527101B2 (en) 2010-04-16 2013-09-03 Yale Security Inc. Door closer assembly
US8547046B2 (en) 2010-04-16 2013-10-01 Yale Security Inc. Door closer with self-powered control unit
US8564235B2 (en) 2010-04-16 2013-10-22 Yale Security Inc. Self-adjusting door closer
US8773237B2 (en) 2010-04-16 2014-07-08 Yale Security Inc. Door closer with teach mode
US8779713B2 (en) 2010-04-16 2014-07-15 Yale Security Inc. Door closer with dynamically adjustable latch region parameters
US9163446B2 (en) 2010-03-17 2015-10-20 Yale Security Inc. Door control apparatus

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US5265306A (en) * 1993-01-15 1993-11-30 Yu King Sung Automatic door closing device
US5460251A (en) * 1994-09-13 1995-10-24 Avm, Inc. Adjustable speed gas spring
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
US8732905B2 (en) 2010-02-11 2014-05-27 Yale Security Inc. Door or window closer
CA2929231C (en) * 2013-11-01 2022-06-21 Stanley Security Solutions, Inc. Spring adjustment indicator for a door closure
US10704310B1 (en) 2019-02-08 2020-07-07 Schlage Lock Company Llc Door closer power adjustment
US12116825B2 (en) * 2022-04-13 2024-10-15 Schlage Lock Company Llc Adjustment screw indicator mechanism

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DE3224300C2 (en) * 1982-06-29 1984-11-29 Geze Gmbh, 7250 Leonberg Door closer with adjustable closing force

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8109038B2 (en) 2004-06-30 2012-02-07 Yale Security Inc. Door operator
US8499495B2 (en) 2004-06-30 2013-08-06 Yale Security Inc. Door operator
US7971316B2 (en) 2007-04-24 2011-07-05 Yale Security Inc. Door closer assembly
US9399884B2 (en) 2007-04-24 2016-07-26 Yale Security Inc. Door closer assembly
US8600567B2 (en) 2007-04-24 2013-12-03 Yale Security Inc. Door closer assembly
US9163446B2 (en) 2010-03-17 2015-10-20 Yale Security Inc. Door control apparatus
US8564235B2 (en) 2010-04-16 2013-10-22 Yale Security Inc. Self-adjusting door closer
US8547046B2 (en) 2010-04-16 2013-10-01 Yale Security Inc. Door closer with self-powered control unit
US8773237B2 (en) 2010-04-16 2014-07-08 Yale Security Inc. Door closer with teach mode
US8779713B2 (en) 2010-04-16 2014-07-15 Yale Security Inc. Door closer with dynamically adjustable latch region parameters
US8527101B2 (en) 2010-04-16 2013-09-03 Yale Security Inc. Door closer assembly
US8415902B2 (en) 2010-04-16 2013-04-09 Yale Security Inc. Door closer with calibration mode
US9523230B2 (en) 2010-04-16 2016-12-20 Yale Security Inc. Door closer assembly

Also Published As

Publication number Publication date
DE3861910D1 (en) 1991-04-11
EP0292743A1 (en) 1988-11-30
DE8707409U1 (en) 1987-07-09

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