EP1398446A1 - Openable flap, in particular exhaust gas flap, and opening mechanism therefore - Google Patents

Openable flap, in particular exhaust gas flap, and opening mechanism therefore Download PDF

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Publication number
EP1398446A1
EP1398446A1 EP03016749A EP03016749A EP1398446A1 EP 1398446 A1 EP1398446 A1 EP 1398446A1 EP 03016749 A EP03016749 A EP 03016749A EP 03016749 A EP03016749 A EP 03016749A EP 1398446 A1 EP1398446 A1 EP 1398446A1
Authority
EP
European Patent Office
Prior art keywords
flap
articulated
double
joint
lifting arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03016749A
Other languages
German (de)
French (fr)
Other versions
EP1398446B1 (en
Inventor
Stefan Richter
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.)
Suspa Holding GmbH
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Suspa Holding GmbH
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Filing date
Publication date
Application filed by Suspa Holding GmbH filed Critical Suspa Holding GmbH
Publication of EP1398446A1 publication Critical patent/EP1398446A1/en
Application granted granted Critical
Publication of EP1398446B1 publication Critical patent/EP1398446B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
    • E04D13/0351—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis
    • E04D13/0354—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis the parts being flat
    • 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
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/72—Power-operated mechanisms for wings with automatic actuation responsive to emergency conditions, e.g. fire
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/248—Operating or controlling mechanisms having non-mechanical actuators pneumatic
    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/002—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means
    • E05F1/006—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means by emergency conditions, e.g. fire
    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1091—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a gas spring
    • 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
    • E05Y2201/404—Function thereof
    • E05Y2201/416—Function thereof for counterbalancing
    • 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
    • E05Y2201/404—Function thereof
    • E05Y2201/422—Function thereof for opening
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/22—Combinations of elements of not identical elements of the same category, e.g. combinations of not identical springs
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/244—Combinations of elements arranged in serial relationship
    • 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
    • E05Y2900/148—Windows
    • E05Y2900/152—Roof windows
    • E05Y2900/154—Skylights

Definitions

  • the invention relates to an openable flap, in particular flue gas flap, according to the preamble of claim 1 and an opening mechanism therefor.
  • Flue gas extraction flaps are mainly used for safety reasons in industrial buildings. On the one hand, they should be able to be opened for the intake of fresh air and, if appropriate, light, but on the other hand they should open automatically if, for example, a fire breaks out or the like.
  • the flaps are usually held by means of a rope, by means of which they can also be closed again. If the rope is released from its holder at an accessible location, the flap is automatically opened by means of an opening mechanism. By means of the rope it can be closed again against the force of the opening mechanism.
  • the rope is held on the flap by means of a holding device, for example a lock with a fuse. In the event of a fire, this holding device opens so that the flap opens automatically.
  • gas springs are used as the opening mechanism, which are articulated on the one hand on the frame and on the other hand on the flap.
  • the gas springs have proven unsuitable for larger flaps.
  • the opening mechanism not only has to overcome the dead weight of the flap, but that such opening mechanisms must also be able to lift relatively large snow loads lying on the flap and when swiveling over the press top dead center to the side. It has therefore become natural.
  • larger flaps use pneumatic piston-cylinder drives instead of gas leathers, which are supplied by a compressed gas source, for example a CO 2 compressed gas bottle, for opening.
  • a flap of the generic type is known from DE 33 38 092 C3, in which the secondary energy accumulator is linked directly to the lifting arm. This leads to an extremely bulky design. Furthermore the force application directions are very unfavorable, so heavy flaps cannot be opened or can only be opened under difficult conditions.
  • the invention has for its object an openable flap of the generic type Art in such a way that with simple means even large ones and heavy hatches can be opened.
  • the training according to claim 4 is usually of great Advantage, because it advantageously supports the described distribution of forces becomes.
  • Claim 10 reflects that the opening mechanism with the Features according to the invention is protected.
  • the roof window shown in the drawing has the function a so-called flue gas flap, mainly found in roofs used by industrial halls. It only shows a hint cuboid, open at the bottom and top frame 1, of a front wall 2, two side walls, of which only one side wall 3 is shown is, and a rear wall 4. At the top of the rear wall 4 is the actual flap 5, which can be designed like a window, by means of a Articulated joint 6 in such a way that it consists of a on the frame 1 overlying position in a clearly more than 90 °, for example about 140 °, opened position can be pivoted, such as is shown in Fig. 5.
  • the flap 5 is by means of only one indicated rope 7 held in its closed position, being in a holding device 8, by means of which the rope 7 on the flap 5 in the area the front wall 2 of the frame 1 is attached, a conventional fuse o. Like. Included, which is the connection between rope 7 and flap 5 automatically releases in the event of a fire. Such holding devices 8 with such fuses are common in practice common.
  • the mechanism 9 has a lifting arm 10 which is adjacent to the rear wall 4 is articulated by means of a swivel joint 11.
  • the lifting arm 10 extends over a substantial part of the length of the side wall 3 its end adjacent to the front wall 2 is a gas spring trained main gas spring 12 as a main energy store by means of a Swivel joint 13 articulated.
  • the other end of the gas spring 12 is by means of a further swivel joint 14 below the lifting arm 10 on one Articulated base plate 15 which is attached to the rear wall 4.
  • the Main gas spring 12 is also articulated on the base plate 15.
  • a secondary gas spring 16 is provided as a secondary energy accumulator the lifting arm 10 is connected via a double-armed lever 17, the by means of a swivel joint 18 attached to its center on the lifting arm 10 is articulated.
  • the secondary gas spring 16 is on one, and that with the flap 5 closed end of the lever 17 at the bottom a swivel joint 19 articulated.
  • a tension member 20 designed as a pull rod or pull rope via a joint 21.
  • the tension member 20 is in turn via a joint 22 attached to the base plate 15.
  • the end of the secondary gas spring 16 is by means of a swivel joint 23 hinged to the flap 5.
  • the extension force F 12 of the main gas spring 12 is significantly greater than the extension force F 16 of the secondary gas spring 16.
  • the specific dimensioning depends on the exact arrangement of the gas springs 12, 16, the length and the articulation of the lifting arm 10, the weight of the flap 5 and other influencing variables.
  • the rope 7 becomes thin Flap 5 opened by means of the opening mechanism 9.
  • the piston rod 25 of the main gas spring 12 is extended from its housing 26 and pivots the lifting arm 10 from approximately to the side wall 3 parallel position to an approximately perpendicular position high.
  • the secondary gas spring 16 acts when the flap 5 is swung up from their closed position according to FIG. 1 by approximately 80 ° -90 °
  • Position swiveled up perpendicular to the frame 1, as shown in FIG. 4 is only as a transmission rod, i.e. as a push rod. Now is the main gas spring 12 fully extended.
  • the articulation point of the secondary gas spring formed by the swivel joint 19 16 is at the beginning of the opening movement of the flap 5, approximately moved back to the position of FIG. 2 relative to the lifting arm 10, that is pivoted counterclockwise.
  • the main gas spring 12 is thus moved back to the latter Part of the opening movement only serves as a push rod auxiliary gas spring 16.
  • For the same extension distance of the piston rod 25 from the Housing 26 of the main gas spring 12 is therefore only a relatively smaller opening path the flap 5 reached. This is given in the opening area in which the main gas spring 12 has the greatest opening force Has.
  • the flap 5 is then extended by extending the piston rod 27 the housing 28 of the secondary gas spring 16 into its far above the upper Opened position beyond dead center, shown in Fig. 5. Because of this Part of the opening movement of the flap 5 is not - like that to the position 4 - against gravity, but under the influence gravity occurs, it may be sufficient if the secondary gas spring 16 primarily or exclusively the function of a gas pressure damper, a gas spring with a high damping effect in the extension direction, Fulfills. Such gas springs are commercially available. If against the flap 5 during the opening movement from the position shown in FIG. 4 5 still push snow to the side, for example or compress, or be pressed against a wind force then it may also be useful if the secondary gas spring 16 a has greater extension force. The damping function can be in be useful in any case.
  • FIG. 6 shows a perspective view Representation of the design and attachment of the base plate 15 ' on frame 1. It also shows the configuration in perspective the flap 5.
  • the double-armed lever 17 ' has a concentric part-circular elongated hole 29 arranged to the swivel joint 18, in which a stop bolt 30 is guided, which is firmly attached to the lifting arm 10 is.
  • the tension member 20 ' has a extending in its longitudinal direction Elongated hole 31, in which a bolt 32 is guided, which is fixed to the double-armed Lever 17 'is connected and at the same time the joint 21st forms.
  • the stop 24 of the first embodiment is not available.
  • the stop bolt 30 is approximately in the middle of the part-circular elongated hole 29.
  • the bolt 32 lies against that Joint 22 facing away from the end of the elongated hole 31.
  • the bolt 32 is in the slot 31 migrated towards its end adjacent to the joint 21, without getting there.
  • This game mentioned is intended so that the tension member 20 'does not come under compressive stress, but can only be claimed on train.
  • the locations of the bolts 30, 32 relative to the elongated holes 29 and 31 no longer change. Due to the described pivoting, a very large opening angle the flap 5 can be reached, in particular by changing the Elongated hole 29, the opening angle can be influenced.
  • the main energy accumulator can also be designed as a spring strut 33 has a prestressed helical compression spring 34 which, on the one hand, in a guide tube 35 is arranged which is connected to the swivel joint 13 is articulated on the lifting arm 10. On the other hand, it has a guide rod 36, which is articulated on the base plate 15 by means of the swivel joint 14 is.
  • This configuration results from FIG. 11, with the secondary energy accumulator - As already described - trained as a pure damper can be or as a similar spring strut.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The hinged lid (5) has a hinge (6) at the top of the rear wall (4) of the frame (1) for the hatch. The hinge may allow the hatch to swing open through an angle of up to 140 degrees. There is a catch (8) releasable by a cord (7) opposite the hinge. A first powerful gas spring (12) lifts the end (13) of a lever (10) near the catch. The other end (11) is hinged near the hinge for the lid. A second weak gas spring (15) is hinged (16) between the center of the lever and a hinge point (17) on the lid.

Description

Die Erfindung betrifft eine öffenbare Klappe, insbesondere Rauchgas-Klappe, nach dem Oberbegriff des Anspruches 1 und einen Öffnungs-Mechanismus hierfür.The invention relates to an openable flap, in particular flue gas flap, according to the preamble of claim 1 and an opening mechanism therefor.

Rauchgas-Abzugs-Klappen werden überwiegend aus Sicherheitsgründen in Industriegebäuden eingesetzt. Sie sollen einerseits zum Einlass von Frischluft und gegebenenfalls Licht geöffnet werden können, sollen andererseits aber automatisch öffnen, wenn beispielsweise ein Brand ausbricht o.dgl. Die Klappen werden üblicherweise mittels eines Seils gehalten, mittels dessen sie auch wieder geschlossen werden können. Wird das Seil aus seiner Halterung an einer zugänglichen Stelle gelöst, so wird die Klappe automatisch mittels eines Öffnungs-Mechanismus geöffnet. Mittels des Seiles kann sie gegen die Kraft des Öffnungsmechanismus wieder geschlossen werden. Das Seil ist mittels einer Halte-Einrichtung, beispielsweise eines Schlosses mit einer Schmelzsicherung, an der Klappe gehalten. Im Falle eines Brandes öffnet diese Halte-Einrichtung, so dass dann automatisch ein Öffnen der Klappe eintritt. Für kleine Klappen werden Gasfedern als Öffnungs-Mechanismus eingesetzt, die einerseits am Rahmen und andererseits an der Klappe angelenkt sind. Für größere Klappen haben sich die Gasfedern als nicht geeignet herausgestellt. Der Grund liegt unter anderem darin, dass der Öffnungs-Mechanismus nicht nur das Eigengewicht der Klappe überwinden muss, sondern dass solche Öffnungs-Mechanismen auch noch in der Lage sein müssen, verhältnismäßig große, auf der Klappe liegende Schneelasten mit anzuheben und beim Überschwenken über den oberen Totpunkt zur Seite zu pressen. Es hat sich deshalb eingebürgert. dass bei größeren Klappen als Öffnungs-Mechanismus anstelle von Gasledern pneumatisch beaufschlagbare Kolben-Zylinder-Antriebe eingesetzt werden, die zum Öffnen von einer Druckgas-Quelle, beispielsweise eine CO2-Druckgas-Flasche, versorgt werden.Flue gas extraction flaps are mainly used for safety reasons in industrial buildings. On the one hand, they should be able to be opened for the intake of fresh air and, if appropriate, light, but on the other hand they should open automatically if, for example, a fire breaks out or the like. The flaps are usually held by means of a rope, by means of which they can also be closed again. If the rope is released from its holder at an accessible location, the flap is automatically opened by means of an opening mechanism. By means of the rope it can be closed again against the force of the opening mechanism. The rope is held on the flap by means of a holding device, for example a lock with a fuse. In the event of a fire, this holding device opens so that the flap opens automatically. For small flaps, gas springs are used as the opening mechanism, which are articulated on the one hand on the frame and on the other hand on the flap. The gas springs have proven unsuitable for larger flaps. The reason is, among other things, that the opening mechanism not only has to overcome the dead weight of the flap, but that such opening mechanisms must also be able to lift relatively large snow loads lying on the flap and when swiveling over the press top dead center to the side. It has therefore become natural. that larger flaps use pneumatic piston-cylinder drives instead of gas leathers, which are supplied by a compressed gas source, for example a CO 2 compressed gas bottle, for opening.

Aus der DE 33 38 092 C3 ist eine Klappe der gattungsgemäßen Art bekannt, bei der der Neben-Kraftspeicher direkt am Hubarm angelenkt ist. Dies führt zu einer außerordentlich sperrigen Ausgestaltung. Des Weiteren sind die Kraftangriffsrichtungen sehr ungünstig, so dass schwere Klappen nicht oder nur unter erschwerten Bedingungen geöffnet werden können.A flap of the generic type is known from DE 33 38 092 C3, in which the secondary energy accumulator is linked directly to the lifting arm. This leads to an extremely bulky design. Furthermore the force application directions are very unfavorable, so heavy flaps cannot be opened or can only be opened under difficult conditions.

Der Erfindung liegt die Aufgabe zugrunde, eine öffenbare Klappe der gattungsgemäßen Art so auszugestalten, dass mit einfachen Mitteln auch große und schwere Klappen geöffnet werden können.The invention has for its object an openable flap of the generic type Art in such a way that with simple means even large ones and heavy hatches can be opened.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale im Kennzeichnungsteil des Anspruches 1 gelöst. Durch die erfindungsgemäßen Maßnahmen wird erreicht, dass die Haupt-Gasfeder zu Beginn des Öffnungsvorganges, wenn also die größte Last zu überwinden ist, ausschließlich oder mindest ganz überwiegend die Öffnungsarbeit leistet und die Neben-Gasfeder nur als Druckstange zur Übertragung der Öffnungskräfte vom Hubarm auf die Klappe dient. Erst wenn die Klappe so weit geöffnet ist, dass eine eventuell auf ihr liegende Schneelast abgerutscht ist und gegebenenfalls Windkräfte überwunden sind, ist die Haupt-Gasfeder vollständig ausgefahren. Dann übernimmt die Neben-Gasfeder das vollständige Öffnen der Klappe bis zu einem Winkel von etwa 140° gegenüber der geschlossenen Stellung der Klappe. Die Ausgestaltung ist insbesondere zum Heben schwerer Klappen geeignet. Hierbei wird durch den gemäß Anspruch 2 weitergebildeten Öffnungs-Mechanismus eine Art Getriebe geschaffen, durch das am An lang der öffnungsbewegung, wenn besonders große Öffnungskräfte erforderlich sind, eine gewisse Untersetzung geschaffen wird, während bei fortschreitender Öffnungsbewegung, wenn die erforderlichen Kräfte abnehmen, eine gewisse Übersetzung geschaffen wird.This object is achieved by the features in the labeling part of claim 1 solved. Through the measures according to the invention it is achieved that the main gas spring at the beginning of the opening process, so when the greatest burden has to be overcome, exclusively or at least predominantly does the opening work and the secondary gas spring only as a push rod for transmitting the opening forces from Lift arm serves on the flap. Only when the flap is opened so far that any snow load lying on it has slipped and if necessary When wind forces are overcome, the main gas spring is complete extended. Then the secondary gas spring takes over the complete opening the flap up to an angle of about 140 ° compared to the closed Position of the flap. The design is particularly for lifting suitable for heavy flaps. Here, according to claim 2 further developed opening mechanism created a kind of gear, due to the length of the opening movement when there are particularly large opening forces a certain reduction is required, while with progressive opening movement if the required Decrease strength, a certain translation is created.

Durch die vorteilhafte Weiterbildung nach Anspruch 3 wird sichergestellt, dass der Ausschubweg der Haupt-Gasfeder beschränkt wird, und dass der getriebeartige Öffnungs-Mechanismus nicht überschlagen kann.The advantageous further development according to claim 3 ensures that that the extension path of the main gas spring is restricted, and that the gear-like opening mechanism cannot overturn.

Weiterhin ist die Weiterbildung nach Anspruch 4 in der Regel von großem Vorteil, da durch sie die geschilderte Kraftaufteilung vorteilhaft unterstützt wird.Furthermore, the training according to claim 4 is usually of great Advantage, because it advantageously supports the described distribution of forces becomes.

Da in der Regel in der Endphase der Öffnungsbewegung die Klappe unter Schwerkraft-Einfluss steht, ist die Ausgestaltung nach Anspruch 5 in der Regel von besonderem Vorteil.As a rule in the final phase of the opening movement the flap under Gravity influence is, the embodiment according to claim 5 in the Usually of particular advantage.

Die Ansprüche 6 bis 9 geben weitere vorteilhafte Ausgestaltungen wieder.Claims 6 to 9 represent further advantageous refinements.

Anspruch 10 gibt wieder, dass auch der Öffnungs-Mechanismus mit den erfindungsgemäßen Merkmalen unter Schutz gestellt wird.Claim 10 reflects that the opening mechanism with the Features according to the invention is protected.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung zweier Ausführungsbeispiele anhand der Zeichnung. Es zeigt

Fig. 1 bis 5
ein erstes Ausführungsbeispiel einer Rauchgas-Klappe in verschiedenen Stellungen von einer geschlossenen bis zu einer vollständig geöffneten Stellung,
Fig. 6 bis 10
ein gegenüber dem ersten Ausführungsbeispiel geringfügig abgewandeltes zweites Ausführungsbeispiel einer Rauchgas-Klappe in verschiedenen Stellungen der Klappe von einer geschlossenen bis zu einer vollständig geöffneten Stellung und
Fig. 11
das erste Ausführungsbeispiel mit abgewandeltem Kraftspeicher.
Further features, advantages and details of the invention result from the following description of two exemplary embodiments with reference to the drawing. It shows
1 to 5
a first embodiment of a flue gas flap in various positions from a closed to a fully open position,
6 to 10
a slightly modified second embodiment of the flue gas flap in different positions of the flap from a closed to a fully open position and
Fig. 11
the first embodiment with a modified energy storage.

Das in der Zeichnung dargestellte Dachflächen-Fenster hat die Funktion einer sogenannten Rauchgas-Abzugs-Klappe, wie sie hauptsächlich in Dächern von Industrie-Hallen eingesetzt wird. Sie weist einen nur angedeuteten quaderförmigen, unten und oben offenen Rahmen 1 auf, der eine Vorderwand 2, zwei Seitenwände, von denen nur eine Seitenwand 3 dargestellt ist, und eine Rückwand 4 auf. Am oberen Rand der Rückwand 4 ist die eigentliche Klappe 5, die fensterartig ausgebildet sein kann, mittels eines Gelenks 6 in der Weise angelenkt, dass sie aus einer auf dem Rahmen 1 aufliegenden Position in eine um deutlich mehr als 90°, beispielsweise etwa 140°, aufgeklappte Position verschwenkt werden kann, wie sie beispielsweise in Fig. 5 dargestellt ist. Die Klappe 5 wird mittels eines nur angedeuteten Seils 7 in ihrer geschlossenen Position gehalten, wobei in einer Halte-Einrichtung 8, mittels deren das Seil 7 an der Klappe 5 im Bereich der Vorderwand 2 des Rahmens 1 befestigt ist, eine übliche Schmelz-Sicherung o. dgl. eingeschlossen ist, die die Verbindung zwischen Seil 7 und Klappe 5 in einem Brandfall selbsttätig löst. Derartige HalteEinrichtungen 8 mit derartigen Sicherungen sind in der Praxis allgemein üblich.The roof window shown in the drawing has the function a so-called flue gas flap, mainly found in roofs used by industrial halls. It only shows a hint cuboid, open at the bottom and top frame 1, of a front wall 2, two side walls, of which only one side wall 3 is shown is, and a rear wall 4. At the top of the rear wall 4 is the actual flap 5, which can be designed like a window, by means of a Articulated joint 6 in such a way that it consists of a on the frame 1 overlying position in a clearly more than 90 °, for example about 140 °, opened position can be pivoted, such as is shown in Fig. 5. The flap 5 is by means of only one indicated rope 7 held in its closed position, being in a holding device 8, by means of which the rope 7 on the flap 5 in the area the front wall 2 of the frame 1 is attached, a conventional fuse o. Like. Included, which is the connection between rope 7 and flap 5 automatically releases in the event of a fire. Such holding devices 8 with such fuses are common in practice common.

Zum Öffnen der Klappe 5. sei es durch Lösen des Seils 7 oder das erwähnte Öffnen der Halte-Einrichtung 8 ist ein Öffnungs-Mechanismus 9 vorgesehen, der im Bereich der Seitenwand 3 vorgesehen ist. Selbstverständlich kann insbesondere bei schweren Klappen 5 aus Symmetriegründen ein solcher Mechanismus 9 jeder Seitenwand 3 zugeordnet sein. Weiterhin ist es selbstverständlich auch möglich, mehrere derartige Öffnungs-Mechanismen 9 der Rückwand 4 zuzuordnen.To open the flap 5. be it by loosening the rope 7 or the above An opening mechanism 9 is provided to open the holding device 8, which is provided in the region of the side wall 3. Of course can in particular with heavy flaps 5 for reasons of symmetry Mechanism 9 can be assigned to each side wall 3. Furthermore it is of course also possible, several such opening mechanisms 9 to assign the rear wall 4.

Der Mechanismus 9 weist einen Hubarm 10 auf, der benachbart zur Rückwand 4 mittels eines Schwenk-Gelenks 11 angelenkt ist. Der Hubarm 10 erstreckt sich über einen wesentlichen Teil der Länge der Seitenwand 3. An seinem der Vorderwand 2 benachbarten Ende ist eine als Druckgasfeder ausgebildete Haupt-Gasfeder 12 als Haupt-Kraftspeicher mittels eines Schwenk-Gelenks 13 angelenkt. Das andere Ende der Gasfeder 12 ist mittels eines weiteren Schwenk-Gelenks 14 unterhalb des Hubarms 10 an einer Grundplatte 15 angelenkt, die an der Rückwand 4 angebracht ist. Die Haupt-Gasfeder 12 ist ebenfalls an der Grundplatte 15 angelenkt.The mechanism 9 has a lifting arm 10 which is adjacent to the rear wall 4 is articulated by means of a swivel joint 11. The lifting arm 10 extends over a substantial part of the length of the side wall 3 its end adjacent to the front wall 2 is a gas spring trained main gas spring 12 as a main energy store by means of a Swivel joint 13 articulated. The other end of the gas spring 12 is by means of a further swivel joint 14 below the lifting arm 10 on one Articulated base plate 15 which is attached to the rear wall 4. The Main gas spring 12 is also articulated on the base plate 15.

Es ist eine Neben-Gasfeder 16 als Neben-Kraftspeicher vorgesehen, die mit dem Hubarm 10 über einen doppelarmigen Hebel 17 verbunden ist, der mittels eines in seiner Mitte angebrachten Schwenk-Gelenks 18 am Hubarm 10 angelenkt ist. Die Neben-Gasfeder 16 ist an einem, und zwar dem bei geschlossener Klappe 5 unten liegenden Ende des Hebels 17 mittels eines Schwenk-Gelenks 19 angelenkt. Am entgegengesetzten Ende des Hebels 17 greift ein als Zugstange oder Zugseil ausgebildetes Zugglied 20 über ein Gelenk 21 an. Das Zugglied 20 ist wiederum über ein Gelenk 22 an der Grundplatte 15 befestigt. Das dem Schwenk-Gelenk 19 entgegengesetzte Ende der Neben-Gasfeder 16 ist mittels eines Schwenk-Gelenks 23 an der Klappe 5 angelenkt. Am Hubarm 10 ist ein ortsfester Anschlag 24 vorgesehen, an den der doppelarmige Hebel 17 benachbart zum Gelenk 19 zur Anlage kommt. kurz bevor die Haupt-Gasfeder 12 vollständig ausgefahren ist. Es sei klargestellt, dass die Neben-Gasfeder 16, der doppelarmige Hebel 17 und das Zugglied 20 sich zwischen der Grundplatte 15 und dem Hubarm 10 befinden. Lediglich aus Gründen der größeren Anschaulichkeit sind diese Teile auch im Bereich des Hubarms 10 in ausgezogenen Linien dargestellt.A secondary gas spring 16 is provided as a secondary energy accumulator the lifting arm 10 is connected via a double-armed lever 17, the by means of a swivel joint 18 attached to its center on the lifting arm 10 is articulated. The secondary gas spring 16 is on one, and that with the flap 5 closed end of the lever 17 at the bottom a swivel joint 19 articulated. At the opposite end of the Lever 17 engages a tension member 20 designed as a pull rod or pull rope via a joint 21. The tension member 20 is in turn via a joint 22 attached to the base plate 15. The opposite of the swivel joint 19 The end of the secondary gas spring 16 is by means of a swivel joint 23 hinged to the flap 5. There is a fixed stop 24 on the lifting arm 10 provided on which the double-armed lever 17 adjacent to the joint 19th comes to the plant. just before the main gas spring 12 is fully extended is. It should be clarified that the secondary gas spring 16, the double-armed Lever 17 and the tension member 20 between the base plate 15 and the lifting arm 10 are. Just for the sake of clarity these parts are also extended in the area of the lifting arm 10 Lines shown.

Die Ausschubkraft F12 der Haupt-Gasfeder 12 ist deutlich größer als die Ausschubkraft F16 der Neben-Gasfeder 16. Es gilt: F12> F16 und insbesondere 6F16≥F12≥ 2 F16 und ganz besonders 10 F16≥F12 ≥2 F16. Die konkrete Dimensionierung hängt von der genauen Anordnung der Gasfedern 12, 16, der Länge und der Anlenkung des Hubarms 10, dem Gewicht der Klappe 5 und weiteren Einflussgrößen ab.The extension force F 12 of the main gas spring 12 is significantly greater than the extension force F 16 of the secondary gas spring 16. The following applies: F 12 > F 16 and in particular 6F 16 ≥F 12 ≥ 2 F 16 and very particularly 10 F 16 ≥F 12 ≥2 F 16 . The specific dimensioning depends on the exact arrangement of the gas springs 12, 16, the length and the articulation of the lifting arm 10, the weight of the flap 5 and other influencing variables.

Die Funktion ergibt sich aus den Figuren 1 bis 5:The function results from FIGS. 1 to 5:

Wenn - wie bereits angesprochen - das Seil 7 gelöst wird, dänn wird die Klappe 5 mittels des Öffnungs-Mechanismus 9 geöffnet. Zuerst wird nur die Kolbenstange 25 der Haupt-Gasfeder 12 aus deren Gehäuse 26 ausgefahren und schwenkt den Hubarm 10 aus der angenähert zur Seitenwand 3 parallelen Position in eine angenähert senkrecht hierzu stehende Position hoch. Die Neben-Gasfeder 16 wirkt beim Hochschwenken der Klappe 5 aus ihrer geschlossenen Position gemäß Fig. 1 um 80° - 90° in ihre etwa senkrecht zum Rahmen 1 hochgeschwenkte Position, wie sie in Fig. 4 dargestellt ist, nur als Übertragungsstange, also als Druckstange. Nunmehr ist die Haupt-Gasfeder 12 vollständig ausgefahren.If - as already mentioned - the rope 7 is loosened, the rope becomes thin Flap 5 opened by means of the opening mechanism 9. First only the piston rod 25 of the main gas spring 12 is extended from its housing 26 and pivots the lifting arm 10 from approximately to the side wall 3 parallel position to an approximately perpendicular position high. The secondary gas spring 16 acts when the flap 5 is swung up from their closed position according to FIG. 1 by approximately 80 ° -90 ° Position swiveled up perpendicular to the frame 1, as shown in FIG. 4 is only as a transmission rod, i.e. as a push rod. Now is the main gas spring 12 fully extended.

Der durch das Schwenk-Gelenk 19 gebildete Anlenkpunkt der Neben-Gasfeder 16 wird am Beginn der Öffnungsbewegung der Klappe 5, etwa bis in die Stellung nach Fig. 2 relativ zum Hubarm 10 zurückverlagert, also im Gegenuhrzeigersinn verschwenkt. Beim Ausfahren der Kolbenstange 25 der Haupt-Gasfeder 12 erfolgt also eine Zurückverlagerung der bei diesem Teil der Öffnungsbewegung nur als Druckstange dienenden Neben-Gasfeder 16. Für die gleiche Ausfahrstrecke der Kolbenstange 25 aus dem Gehäuse 26 der Haupt-Gasfeder 12 wird also nur ein relativ kleinerer Öffnungsweg der Klappe 5 erreicht. Dies ist in dem Öffnungs-Bereich gegeben, in dem die Haupt-Gasfeder 12 die größte Öffnungskraft aufzubringen hat. Im weiteren Verlauf der Öffnungsbewegung dreht sich dann die Schwenkbewegungsrichtung des doppelarmigen Hebels 17 um; er wird relativ zum Hubarm 10 im Uhrzeigersinn verschwenkt mit der Konsequenz, dass, obwohl die Neben-Gasfeder 16 immer noch lediglich als Druckstange arbeitet, deren Anlenkpunkt 19 am Hebel 17 zusätzlich in Öffnungsrichtung verlagert wird. Dies liegt daran, dass beim Hochschwenken des Hubarms 10 der Abstand des Gelenks 18 vom Gelenk 22 vergrößert wird mit der Konsequenz, dass das Zugglied 20 den doppelarmigen Hebel 17 in der Weise verschwenkt, dass der durch das Gelenk 19 gebildete Anlenkpunkt zur Klappe 5 hin verlagert wird. Die Ausfahrbewegung der Haupt-Gasfeder 12 wird beendet, wenn der doppelarmige Hebel 17 zur Anlage am Anschlag 24 kommt. Damit wird auch sichergestellt, dass das Zugglied 20 nicht plötzlich Druckkräften ausgesetzt wird. Die Neben-Gasfeder 16 und der doppelarmige Hebel 17 schließen auf der Seite der Klappe 5 einen Winkel ein, der kleiner 180° ist. Damit wird auch sichergestellt, dass die geschilderte Getriebefunktion erhalten bleibt.The articulation point of the secondary gas spring formed by the swivel joint 19 16 is at the beginning of the opening movement of the flap 5, approximately moved back to the position of FIG. 2 relative to the lifting arm 10, that is pivoted counterclockwise. When extending the piston rod 25 the main gas spring 12 is thus moved back to the latter Part of the opening movement only serves as a push rod auxiliary gas spring 16. For the same extension distance of the piston rod 25 from the Housing 26 of the main gas spring 12 is therefore only a relatively smaller opening path the flap 5 reached. This is given in the opening area in which the main gas spring 12 has the greatest opening force Has. In the further course of the opening movement, the turns Swinging direction of the double-armed lever 17 around; he will pivoted clockwise relative to the lifting arm 10 with the consequence, that although the secondary gas spring 16 is still only as Push rod works, the pivot point 19 on the lever 17 in addition Opening direction is shifted. This is because when swiveling up of the lifting arm 10 the distance of the joint 18 from the joint 22 is increased with the consequence that the tension member 20 the double-armed Lever 17 pivoted in such a way that that formed by the joint 19 Articulation point to flap 5 is shifted. The extension movement of the Main gas spring 12 is terminated when the double-armed lever 17 for System comes to stop 24. This also ensures that the Tension member 20 is not suddenly subjected to compressive forces. The secondary gas spring 16 and the double-armed lever 17 close on the side of the Fold in 5 an angle that is less than 180 °. This also ensures that the described gear function is retained.

Anschließend wird die Klappe 5 durch Ausfahren der Kolbenstange 27 aus dem Gehäuse 28 der Neben-Gasfeder 16 bis in ihre weit über den oberen Totpunkt hinausgehende, in Fig. 5 dargestellte Position geöffnet. Da dieser Teil der Öffnungsbewegung der Klappe 5 nicht - wie derjenige bis zur Position gemäß Fig. 4 - gegen die Schwerkraft, sondern unter dem Einfluss der Schwerkraft erfolgt, kann es ausreichend sein, wenn die Neben-Gasfeder 16 primär oder ausschließlich die Funktion eines Gasdruck-Dämpfers, also einer Gasfeder mit hoher Dämpfungswirkung in Ausschubrichtung, erfüllt. Derartige Gasfedern sind handelsüblich. Wenn dagegen die Klappe 5 bei der Öffnungsbewegung aus der Position gemäß Fig. 4 in die Position gemäß Fig. 5 beispielsweise noch Schnee zur Seite schieben bzw. komprimieren muss, oder gegen eine Windkraft gedrückt werden muss, dann kann es auch sinnvoll sein, wenn die Neben-Gasfeder 16 eine größere Ausschubkraft aufweist. Die Dämpfüngs-Funktion kann aber in jedem Fall nützlich sein.The flap 5 is then extended by extending the piston rod 27 the housing 28 of the secondary gas spring 16 into its far above the upper Opened position beyond dead center, shown in Fig. 5. Because of this Part of the opening movement of the flap 5 is not - like that to the position 4 - against gravity, but under the influence gravity occurs, it may be sufficient if the secondary gas spring 16 primarily or exclusively the function of a gas pressure damper, a gas spring with a high damping effect in the extension direction, Fulfills. Such gas springs are commercially available. If against the flap 5 during the opening movement from the position shown in FIG. 4 5 still push snow to the side, for example or compress, or be pressed against a wind force then it may also be useful if the secondary gas spring 16 a has greater extension force. The damping function can be in be useful in any case.

Das Ausführungsbeispiel nach den Fig. 6 bis 10 unterscheidet sich nur geringfügig von dem nach den Fig. 1 bis 5. Fig. 6 zeigt in einer perspektivischen Darstellung die Ausgestaltung und Befestigung der Grundplatte 15' am Rahmen 1. Sie zeigt auch in perspektivischer Darstellung die Ausgestaltung der Klappe 5. Der doppelarmige Hebel 17' weist ein konzentrisch zum Schwenk-Gelenk 18 angeordnetes, teilkreisförmiges Langloch 29 auf, in dem ein Anschlag-Bolzen 30 geführt ist, der am Hubarm 10 fest angebracht ist. Das Zugglied 20' weist ein in seiner Längsrichtung verlaufendes Langloch 31 auf, in dem ein Bolzen 32 geführt ist, der fest mit dem doppelarmigen Hebel 17' verbunden ist und der gleichzeitig das Gelenk 21 bildet. Der Anschlag 24 des ersten Ausführungsbeispiels ist nicht vorhanden.The embodiment according to FIGS. 6 to 10 differs only slightly of that according to FIGS. 1 to 5. FIG. 6 shows a perspective view Representation of the design and attachment of the base plate 15 ' on frame 1. It also shows the configuration in perspective the flap 5. The double-armed lever 17 'has a concentric part-circular elongated hole 29 arranged to the swivel joint 18, in which a stop bolt 30 is guided, which is firmly attached to the lifting arm 10 is. The tension member 20 'has a extending in its longitudinal direction Elongated hole 31, in which a bolt 32 is guided, which is fixed to the double-armed Lever 17 'is connected and at the same time the joint 21st forms. The stop 24 of the first embodiment is not available.

Wie sich aus der die geschlossene Stellung der Klappe 5 wiedergebenden Fig. 7 ersehen lässt, befindet sich der Anschlag-Bolzen 30 etwa in der Mitte des teilkreisförmigen Langlochs 29. Der Bolzen 32 liegt gegen das dem Gelenk 22 abgewandte Ende des Langlochs 31 an. Beim Hochschwenken der Klappe 5 gemäß Fig. 8 wird - in der bereits geschilderten Weise - der doppelarmige Hebel 17' so verschwenkt, dass der Anschlag-Bolzen 30 im Langloch 29 zu dessen dem Gelenk 21 benachbarten Ende hin verschoben wird, ohne dort anzuschlagen. Die Lage des Bolzens 32 relativ zum Langloch 31 hat sich nicht verändert. Beim weitergehenden Öffnen der Klappe 5 durch vollständiges Ausfahren der Haupt-Gasfeder 12 dreht sich - in der bereits geschilderten Weise - die Schwenkbewegung des doppelarmigen Hebels 17' relativ zum Hubarm 10 um, ohne dass der Anschlag-Bolzen 30 an dem dem Schwenk-Gelenk 19 benachbarten Ende des teilkreisförmigen Langlochs 29 bereits zur Anlage kommt, wie es in Fig. 9 erkennbar ist. Das weitere Öffnen der Klappe 5 erfolgt aufgrund des Schwungs von der vorherigen Öffnungsbewegung und durch die Neben-Gasfeder 16. Wenn die Klappe 5 genügend weit über ihren Totpunkt hinausgeschwenkt ist, wird die weitere Öffnungsbewegung von der Öffnungs-Gasfeder 16 gedämpft. Der Hebel 17' wird jetzt so verschwenkt, dass der Anschlag-Bolzen 30 an dem dem Schwenkgelenk 19 benachbarten Ende des Langlochs 29 zur Anlage kommt, wie es in Fig. 10 dargestellt ist. Der Bolzen 32 ist im Langloch 31 in Richtung zu dessen dem Gelenk 21 benachbarten Ende gewandert, ohne dort zur Anlage zu kommen. Dieses erwähnte Spiel ist vorgesehen, damit das Zugglied 20' nicht unter Druckspannungen gerät, sondern grundsätzlich nur auf Zug beansprucht werden kann. Die Lagen der Bolzen 30, 32 relativ zu den Langlöchern 29 bzw. 31 verändern sich nicht mehr. Durch das geschilderte Verschwenken kann ein sehr großer Öffnungswinkel der Klappe 5 erreicht werden, wobei insbesondere durch Verändern des Langlochs 29 der Öffnungswinkel beeinflusst werden kann.As is reflected in the closed position of the flap 5 Fig. 7 can be seen, the stop bolt 30 is approximately in the middle of the part-circular elongated hole 29. The bolt 32 lies against that Joint 22 facing away from the end of the elongated hole 31. When swinging up 8 is - in the manner already described - the double-armed lever 17 'pivoted so that the stop bolt 30 in Elongated hole 29 moved to the end adjacent to the joint 21 without striking there. The position of the bolt 32 relative to the slot 31 has not changed. When opening the flap further 5 by fully extending the main gas spring 12 rotates - in the already described way - the pivoting movement of the double-armed Lever 17 'relative to the lifting arm 10 without the stop pin 30th at the swivel joint 19 adjacent end of the part-circular Elongated holes 29 already come into contact, as can be seen in FIG. 9. The further opening of the flap 5 takes place due to the momentum of the previous one Opening movement and by the secondary gas spring 16. If the Flap 5 is pivoted far enough beyond its dead center the further opening movement is dampened by the opening gas spring 16. The lever 17 'is now pivoted so that the stop bolt 30 on the pivot joint 19 adjacent end of the elongated hole 29 to the system comes as shown in Fig. 10. The bolt 32 is in the slot 31 migrated towards its end adjacent to the joint 21, without getting there. This game mentioned is intended so that the tension member 20 'does not come under compressive stress, but can only be claimed on train. The locations of the bolts 30, 32 relative to the elongated holes 29 and 31 no longer change. Due to the described pivoting, a very large opening angle the flap 5 can be reached, in particular by changing the Elongated hole 29, the opening angle can be influenced.

Der Haupt-Kraftspeicher kann auch als Federstrebe 33 ausgebildet sein, die eine vorgespannte Schrauben-Druck-Feder 34 aufweist, die einerseits in einem Führungsrohr 35 angeordnet ist, das mit dem Schwenk-Gelenk 13 am Hubarm 10 angelenkt ist. Andererseits weist sie eine Führungsstange 36 auf, die mittels des Schwenk-Gelenks 14 an der Grundplatte 15 angelenkt ist. Diese Ausgestaltung ergibt sich aus Fig. 11, wobei der Neben-Kraftspeicher - wie bereits geschildert - als reiner Dämpfer ausgebildet sein kann oder auch als eine gleichartige Federstrebe.The main energy accumulator can also be designed as a spring strut 33 has a prestressed helical compression spring 34 which, on the one hand, in a guide tube 35 is arranged which is connected to the swivel joint 13 is articulated on the lifting arm 10. On the other hand, it has a guide rod 36, which is articulated on the base plate 15 by means of the swivel joint 14 is. This configuration results from FIG. 11, with the secondary energy accumulator - As already described - trained as a pure damper can be or as a similar spring strut.

Claims (10)

Öffenbare Klappe, insbesondere Rauchgas-Abzugs-Klappe, mit einem Rahmen (1), mit einer am Rahmen (1) angelenkten Klappe (5), mit einer Halte-Einrichtung (8) zum Halten der Klappe (5) in einer geschlossenen Stellung und mit einem Hubarm (10), der um ein relativ zum Rahmen (1) ortsfestes erstes Gelenk (11) schwenkbar gelagert ist, mit einem Haupt-Kraftspeicher (12), der mit einem ersten Ende an einem relativ zum Rahmen (1) ortsfesten zweiten Gelenk (14) und mit einem zweiten Ende mittels eines dritten Gelenks (13) im Abstand zum ersten Gelenk (11) am Hubarm (10) angelenkt ist und mit einem Neben-Kraftspeicher (16), der mit einem ersten Ende zwischen dem ersten und dem zweiten Gelenk (11, 13) mit dem Hubarm (10) gelenkig verbunden und mit einem zweiten Ende an der Klappe (5) angelenkt ist, dadurch gekennzeichnet, dass am Hubarm (10) ein doppelarmiger Hebel (17, 17') mittels eines Schwenk-Gelenks (18) angelenkt ist, an dessen einem, dem Haupt-Kraftspeicher (12) zugewandten ersten Ende der Neben-Kraftspeicher (16) mit seinem ersten Ende angelenkt ist, und an dessen der Klappe (5) zugewandten zweiten Ende ein Zugglied (20) mit einem ersten Ende angelenkt ist, das mit seinem zweiten Ende relativ zum Rahmen (1) angelenkt ist.Openable flap, especially flue gas flap, with a frame (1), with a flap (5) hinged to the frame (1), with a holding device (8) for holding the flap (5) in a closed position and with a lifting arm (10) which is pivotably mounted about a first joint (11) which is stationary relative to the frame (1), with a main energy accumulator (12), which has a first end on a second joint (14) which is stationary relative to the frame (1) and a second end by means of a third joint (13) at a distance from the first joint (11) on the lifting arm (10) is articulated and with a secondary energy accumulator (16) which is articulated at a first end between the first and the second joint (11, 13) with the lifting arm (10) and is articulated at the flap (5) with a second end, characterized in that a double-armed lever (17, 17 ') is articulated on the lifting arm (10) by means of a swivel joint (18), on the one end of the secondary energy accumulator (16) facing the main energy accumulator (12) is articulated at its first end, and at the second end of which the flap (5) faces, a tension member (20) is articulated with a first end which is articulated with its second end relative to the frame (1). Klappe nach Anspruch 1, dadurch gekennzeichnet, dass der doppelarmige Hebel (17, 17') und das Zugglied (20. 20') derartig angeordnet und ausgebildet sind, dass zu Beginn der Öffnungsbewegung der Klappe (5) unter Verschwenken des doppelarmigen Hebels (17, 17') das erste Ende des Neben-Kraftspeichers (16) entgegen der Richtung des Neben-Kraftspeichers (16) bewegt wird, und dass im Verlauf der Öffnungsbewegung der Klappe (5) die Verschwenk-Bewegung des doppelarmigen Hebels (17, 17') umgekehrt wird.Flap according to claim 1, characterized in that the double-armed lever (17, 17 ') and the tension member (20. 20') are arranged and designed such that at the beginning of the opening movement of the flap (5) while pivoting the double-armed lever (17th , 17 ') the first end of the secondary energy accumulator (16) is moved against the direction of the secondary energy accumulator (16), and that during the opening movement of the flap (5) the pivoting movement of the double-armed lever (17, 17' ) is reversed. Klappe nach Anspruch 2, dadurch gekennzeichnet, dass im Schwenkweg des doppelarmigen Hebels (17, 17') am Hubarm (10) ein Anschlag (24, 30) vorgesehen ist.Flap according to claim 2, characterized in that a stop (24, 30) is provided in the pivoting path of the double-armed lever (17, 17 ') on the lifting arm (10). Klappe nach Anspruch 1, dadurch gekennzeichnet, dass für die Ausschubkraft (F12) des Haupt-Kraftspeichers (12) im Verhältnis zur Ausschubkraft (F16) des Neben-Kraftspeichers (16) gilt: F12 ≥ F16 und insbesondere 6 F16 ≥ F12 ≥ 2 F16 und ganz besonders 10 F16 ≥ F12≥2F16.Flap according to claim 1, characterized in that for the extension force (F 12 ) of the main energy store (12) in relation to the extension force (F 16 ) of the secondary energy store (16): F 12 ≥ F 16 and in particular 6 F 16 ≥ F 12 ≥ 2 F 16 and very particularly 10 F 16 ≥ F 12 ≥2F 16 . Klappe nach Anspruch 1, dadurch gekennzeichnet, dass der Neben-Kraftspeicher (16) als in Ausschubrichtung gedämpfte Gasfeder (16) ausgebildet ist.Flap according to claim 1, characterized in that the secondary energy accumulator (16) is designed as a gas spring (16) damped in the extension direction. Klappe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der doppelarmige Hebel (17') ein konzentrisch zum Schwenk-Gelenk (18) ausgebildetes, teilkreisförmiges Langloch (29) aufweist, in dem ein am Hubarm (10) ausgebildeter Anschlag-Bolzen (30) geführt ist.Flap according to one of claims 1 to 3, characterized in that the double-armed lever (17 ') has a partially circular elongated hole (29) formed concentrically to the swivel joint (18), in which a stop bolt formed on the lifting arm (10) (30) is performed. Klappe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Zugglied (29') ein Langloch (31) aufweist, in dem ein am doppelarmigen Hebel (17') angebrachter Bolzen (32) geführt ist.Flap according to one of claims 1 to 6, characterized in that the tension member (29 ') has an elongated hole (31) in which a bolt (32) attached to the double-armed lever (17') is guided. Klappe nach Anspruch 1, dadurch gekennzeichnet, dass der Haupt-Kraftspeicher und/oder der Neben-Kraftspeicher als Gasfeder (12, 16) ausgebildet ist.Flap according to claim 1, characterized in that the main energy accumulator and / or the secondary energy accumulator is designed as a gas spring (12, 16). Klappe nach Anspruch 1, dadurch gekennzeichnet, dass der Haupt-Kraftspeicher und /oder der Neben-Kraftspeicher als Federstrebe (33) ausgebildet ist.Flap according to claim 1, characterized in that the main energy store and / or the secondary energy store is designed as a spring strut (33). Öffnungs-Mechanismus für eine öffenbare Klappe mit den Merkmalen des Anspruchs 1 und gegebenenfalls einem oder mehreren der Ansprüche 2 bis 9.Opening mechanism for an openable flap with the features of claim 1 and optionally one or more of the claims 2 to 9.
EP03016749A 2002-08-27 2003-07-23 Openable flap, in particular exhaust gas flap Expired - Lifetime EP1398446B1 (en)

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DE10240039A DE10240039A1 (en) 2002-08-27 2002-08-27 Openable flap, in particular flue gas flap and opening mechanism therefor
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Also Published As

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DE50306477D1 (en) 2007-03-29
DE10240039A1 (en) 2004-03-04
US6766616B2 (en) 2004-07-27
EP1398446B1 (en) 2007-02-14
US20040043722A1 (en) 2004-03-04

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