EP0540844B1 - Valve with several elements for ventilation and air conditioning systems - Google Patents

Valve with several elements for ventilation and air conditioning systems Download PDF

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Publication number
EP0540844B1
EP0540844B1 EP92114457A EP92114457A EP0540844B1 EP 0540844 B1 EP0540844 B1 EP 0540844B1 EP 92114457 A EP92114457 A EP 92114457A EP 92114457 A EP92114457 A EP 92114457A EP 0540844 B1 EP0540844 B1 EP 0540844B1
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EP
European Patent Office
Prior art keywords
flap
air opening
flaps
slat
gear wheel
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
EP92114457A
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German (de)
French (fr)
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EP0540844A3 (en
EP0540844A2 (en
Inventor
Josef Ammann
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Hoval Interliz AG
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Hoval Interliz AG
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Publication date
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Publication of EP0540844A2 publication Critical patent/EP0540844A2/en
Publication of EP0540844A3 publication Critical patent/EP0540844A3/en
Application granted granted Critical
Publication of EP0540844B1 publication Critical patent/EP0540844B1/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae

Definitions

  • the invention relates to a sectional flap for ventilation and air conditioning systems according to the preamble of claim 1.
  • Sectional dampers are used in the air outlet openings of ventilation and air conditioning systems for shut-off and throttling tasks as well as in the case of heat recovery units as a bypass flap.
  • Such link flaps are known for example from GB-A-2 146 426.
  • the design is such that the individual slats can be replaced without having to dismantle the entire link flap.
  • the respective lamella is released at one end and then folded down until it can be pulled out of a plug connection with its other end.
  • the space available for this sequence of movements is very limited, so that handling difficulties can be expected, especially since the lamella carries an upright plate at the end to be released.
  • a sufficiently sealing connection of the slats to the associated vertical frame parts should not be achievable with the known construction. In addition, the latter has a complicated, multi-part structure.
  • Link flaps are increasingly being used in heat recovery units, for example in order to change the passage cross section of a bypass channel bypassing the heat recovery unit in the opposite way to changing the passage cross section of an air duct passing through the heat recovery unit.
  • the link flaps required for heat recovery systems have been assembled so far, starting from and based on commercially available link flap designs.
  • this did not meet the requirements for a compact design of the link flap and for minimal costs.
  • one was set in standards Leak tightness achieved only in that the lamella profiles were provided with lip seals or other sealing elements made of rubber or similar elastic material known from the German patent specification 26 14 284 on their lamella edges interacting in the closed position of the sectional flap.
  • these seals have the disadvantage that malfunctions can occur at low temperatures due to icing or sticking of the rubber sealing elements.
  • the frequently used lip seals lead to disturbing noises, which are caused by the flow separation and vibrations on the rubber lips.
  • the object of the invention is to provide a sectional flap which allows for simple and cost-effective replacement of individual elements for maintenance and repair work without dismantling the ventilation units, which has a compact and inexpensive construction for use in heat recovery and which, if a tightness after Standard, no special rubber sealing elements are required on the lamella profiles.
  • the link flap contains a rectangular frame, the horizontal frame parts 1 and 2 and vertical frame parts 3 and 4 of which surround an air opening A, in which five slats 5 are pivotally mounted about their horizontal center lines 6 in the exemplary embodiment shown.
  • the link flap is, for example in the case of a heat recovery device, to change the cross section of an air duct leading through the heat recovery device and simultaneously the cross section of a bypass channel bypassing the heat recovery device, so that the frame next to the air opening A is one of the extended horizontal frame parts 1 and 2 and contains a second air opening B surrounded by a third vertical outer frame side part 7, in which second slats 8 are mounted so as to be pivotable about their horizontal center lines.
  • FIG. 1 shows the fins 5 of the first air opening A in the closed position and the second fins 8 of the second air opening B in the open position.
  • the same number as the lamellae 6 have gears 9 rotatably mounted, with which the lamellae 5 are connected at one end and via which the lamellae 5 are in engagement with one another. Between the gears 9 and the second plates 8 there is a connection described below, so that the gears 9 together with the first plates 5 also second slats 8 are engaged with each other.
  • the slats 5 are connected at their other end to receiving disks 10 which are rotatably mounted on the vertical frame part 3.
  • the second lamellae 8 are connected at their end facing away from the gear wheels 9 with similar receiving disks 11, which are rotatably mounted on the vertical frame part 7.
  • the actuation of all the slats 5 and 8 takes place centrally on a drive pin 12, which is inserted, for example, with a square into any selected receiving disk 10 and slat 5.
  • the slats 5 and 8 consist in the usual manner of a hollow profile that has a square opening on the slat center line, into which the drive pin 12 can be inserted in the slats 5 and the connection described above with the slats 8 Gears 9 engages.
  • holders for the lamellae 5 and 8 are arranged, which, in the embodiment of the link flap shown in FIGS. 1 to 5, consist respectively of holding tabs 13 arranged in pairs on the gearwheels and receiving disks there are support brackets 14 fixed to the gearwheels or holding disks and fastening wedges 15 which are removably arranged opposite to the gearwheels and holding disks.
  • the retaining tabs 13 and the support tabs 14 and fastening wedges 15 each lie opposite one another on both side surfaces of a lamella 5 and 8, respectively.
  • the retaining tabs, support tabs and fastening wedges preferably have rib-shaped projections 16 which engage in matching groove-like depressions 17 on the slat side surfaces, as a result of which the slats between the holding elements 13, 14, 15 in positioned in the correct position and against moving in the slat plane are fixed.
  • the slat-shaped cross-sectional shape tapering in a wedge-shaped manner towards both slat edges supports the securing of the slats against displacement in the holders on the gear wheels and on the receiving disks.
  • the gear wheels 9 and the receiving disks 10 are rotatably mounted on the vertical frame parts 3 and 4 in such a way that they can be pulled off into the air opening A from the vertical frame parts. After pulling out a slat 5 as described above, its gear 9 and / or receiving disk 10 can also be easily removed from the frame of the link flap for repair work. As FIGS.
  • each lamella 8 can be pulled out analogously to the slats 5 after the fastening wedge 15 has been removed from the holding disk 11 from the holding tabs 13 in the slat plane.
  • the support tabs opposite the releasable fastening wedges and on the same are on the gearwheel 9 and on the receiving disk 10
  • Side surface of the lamella adjoining retaining tabs are designed as continuous strip-shaped covers 19 which cover any gaps that may form between lamella 5 and gear 9 or between lamella 5 and receiving disk 10 in a sufficiently tight manner.
  • the gear wheels 9 have a recess on the side facing the lamellae 5, into which a helical compression spring 20 is inserted. By means of this spring 20, which is supported on the one hand on the gear 9 and on the other hand on the lamella 5, the gear 9 and the receiving disk 10 are pressed sufficiently tight against the vertical frame parts 3 and 4, respectively.
  • FIG. 1 A further advantageous design measure of the link flap, which avoids or makes unnecessary conventional special rubber lip seals or other rubber sealing elements on the contacting lamella edges, is shown in particular in FIG.
  • the slats 5, similar the slats 8 come in the closed position at their slat edges directly, without additional elastic sealing means, in metallic contact.
  • the lamella edges are also formed with a cross section, which is composed of a projection 21 and a recess 22 and essentially corresponds to the shape of a tooth and a tooth gap of an involute toothing.
  • the slat edges can be designed such that they come into contact shortly before reaching the vertical closing end position of the slats shown in the right part of FIG Air opening required contact point is present between the profile cross-sections of the slat edges and that continue to roll from rubbing instead of sliding and rubbing against each other from the beginning of the contact of the slat edges to the final closed position of the slats.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Compressor (AREA)
  • External Artificial Organs (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Duct Arrangements (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Abstract

The valve with several elements for ventilation or air conditioning systems has a frame with horizontal and vertical frame parts and with a number of slats (5) which are pivotable about their horizontal central line in the air opening of the frame and which are in engagement with one another via toothed wheels (9) and in the closed position touch sealingly at their facing slat edges. Each slat (5) is arranged between a toothed wheel (9) mounted rotatably on one vertical frame part (4) and a receiving disc (10) mounted rotatably on the other vertical frame part (3) and is supported by holding devices (13, 14) arranged on the toothed wheel (9) and on the receiving disc (10), which holding devices bear against both side surfaces of the slat (5). The slat (5) can be pulled out of the holding devices (13, 14) in the direction of its slat plane, the holding devices (13, 14) and the slat (5) being provided with a detachable locking device (15, 16, 17) which secures the slat against being pulled out of the holding devices. <IMAGE>

Description

Die Erfindung betrifft eine Gliederklappe für Lüftungs- und Klimaanlagen nach dem Oberbegriff des Anspruchs 1.The invention relates to a sectional flap for ventilation and air conditioning systems according to the preamble of claim 1.

Gliederklappen werden in Luftdurchlaßöffnungen von Lüftungs- und Klimaanlagen für Absperr- und Drossellaufgaben sowie bei Wärmerückgewinnern als Bypass-Klappe eingesetzt. Solche Gliederklappen sind beispielsweise aus der GB-A-2 146 426 bekannt. Dabei ist die Konstruktion so getroffen, daß die einzelnen Lamellen ausgewechselt werden können, ohne die gesamte Gliederklappe demontieren zu müssen. Die jeweilige Lamelle wird an ihrem einen Ende gelöst und sodann nach unten geklappt, bis sie mit ihrem anderen Ende aus einer Steckverbindung herausgezogen werden kann. Der für diesen Bewegungsablauf zur Verfügung stehende Platz ist sehr begrenzt, so daß mit Handhabungsschwierigkeiten zu rechnen ist, zumal die Lamelle an dem zu lösenden Ende eine hochstehende Platte trägt. Ein ausreichend abdichtender Anschluß der Lamellen an die zugehörigen senkrechten Rahmenteile dürfte bei der bekannten Konstruktion nicht erzielbar sein. Hinzu kommt, daß letztere einen komplizierten, vielteiligen Aufbau aufweist.Sectional dampers are used in the air outlet openings of ventilation and air conditioning systems for shut-off and throttling tasks as well as in the case of heat recovery units as a bypass flap. Such link flaps are known for example from GB-A-2 146 426. The design is such that the individual slats can be replaced without having to dismantle the entire link flap. The respective lamella is released at one end and then folded down until it can be pulled out of a plug connection with its other end. The space available for this sequence of movements is very limited, so that handling difficulties can be expected, especially since the lamella carries an upright plate at the end to be released. A sufficiently sealing connection of the slats to the associated vertical frame parts should not be achievable with the known construction. In addition, the latter has a complicated, multi-part structure.

Vermehrt kommen Gliederklappen bei Wärmerückgewinnern zum Einsatz, um beispielsweise gegenläufig zur Veränderung des Durchlaßquerschnittes eines durch den Wärmerückgewinner hindurchführenden Luftkanals den Durchlaßquerschnitt eines den Wärmerückgewinner umgehenden Bypass-Kanals zu verändern. Dazu wurden bisher ausgehend und aufbauend auf marktüblichen Gliederklappen-Konstruktionen die für Wärmerückgewinner benötigten Gliederklappen zusammengebaut. Dadurch wurden aber nicht die Wünsche nach einer kompakten Bauweise der Gliederklappe und nach minimalen Kosten erfüllt. Bei den bekannten und gebräuchlichen Gliederklappen wurde eine in Normen fest gelegte Dichtheit nur dadurch erreicht, daß die Lamellenprofile an ihren in der Schließstellung der Gliederklappe zusammenwirkenden Lamellenrändern mit Lippendichtungen oder anderen, beispielsweise aus der deutschen Patentschrift 26 14 284 bekannten Dichtungselementen aus Gummi oder dergleichen elastischem Material versehen wurden. Diese Dichtungen haben neben den höheren Kosten den Nachteil, daß bei tiefen Temperaturen Störungen durch ein Vereisen oder Verkleben der Gummidichtungselemente entstehen können. Die häufig gebräuchlichen Lippendichtungen führen zu störenden Geräuschbildungen, die durch die Strömungsablösungen und durch Schwingungen an den Gummilippen verursacht werden.Link flaps are increasingly being used in heat recovery units, for example in order to change the passage cross section of a bypass channel bypassing the heat recovery unit in the opposite way to changing the passage cross section of an air duct passing through the heat recovery unit. For this purpose, the link flaps required for heat recovery systems have been assembled so far, starting from and based on commercially available link flap designs. However, this did not meet the requirements for a compact design of the link flap and for minimal costs. In the known and common link flaps, one was set in standards Leak tightness achieved only in that the lamella profiles were provided with lip seals or other sealing elements made of rubber or similar elastic material known from the German patent specification 26 14 284 on their lamella edges interacting in the closed position of the sectional flap. In addition to the higher costs, these seals have the disadvantage that malfunctions can occur at low temperatures due to icing or sticking of the rubber sealing elements. The frequently used lip seals lead to disturbing noises, which are caused by the flow separation and vibrations on the rubber lips.

Aufgabe der Erfindung ist die Schaffung einer Gliederklappe, die für Wartungs- und Reparaturarbeiten eine einfache und kostensparende Auswechselung einzelner Elemente ohne eine Demontage der Lüftungsgeräte ermöglicht, die für die Anwendung bei Wärmerückgewinnern eine kompakte und kostengünstig herstellbare Bauweise hat und die, wenn eine Dichtheit nach der Norm benötigt wird, auch keine besonderen Gummidichtungselemente an den Lamellenprofilen benötigt.The object of the invention is to provide a sectional flap which allows for simple and cost-effective replacement of individual elements for maintenance and repair work without dismantling the ventilation units, which has a compact and inexpensive construction for use in heat recovery and which, if a tightness after Standard, no special rubber sealing elements are required on the lamella profiles.

Zur Lösung der vorgenannten Aufgabe dienen in erster Linie die im Anspruch 1 gekennzeichneten Ausgestaltungsmaßnahmen. Bevorzugte Weiterbildungen der erfindungsgemäßen Gliederklappe sind in den Unteransprüchen angegeben.The design measures characterized in claim 1 serve primarily to achieve the aforementioned object. Preferred developments of the link flap according to the invention are specified in the subclaims.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung und den Zeichnungen, in denen ein Ausführungsbeispiel der Erfindung dargestellt ist. Es zeigen

  • Figur 1 eine Vorderansicht der Gliederklappe;
  • Figur 2 einen Horizontalschnitt durch die Gliederklappe nach der Linie II-II in Figur 1;
  • Figur 3 und Figur 4 Vertikalschnitte durch die Gliederklappe nach den Linien III-III bzw. IV-IV in Figur 1;
  • Figur 5 in perspektivischer Ansicht eine Einzelheit der Gliederklappe gemäß Figur 1;
  • Figur 6 einen der Figur 2 entsprechenden Horizontalschnitt durch die Gliederklappe in teilweise abgewandelter Ausführung;
  • Figur 7 in vergrößerter Darstellung Einzelheiten aus der Figur 4.
Further details and advantages of the invention will become apparent from the following description and the drawings, in which an embodiment of the invention is shown. Show it
  • Figure 1 is a front view of the link flap;
  • Figure 2 shows a horizontal section through the link flap along the line II-II in Figure 1;
  • Figure 3 and Figure 4 vertical sections through the link flap according to lines III-III and IV-IV in Figure 1;
  • 5 shows a perspective view of a detail of the link flap according to FIG. 1;
  • 6 shows a horizontal section corresponding to FIG. 2 through the sectional flap in a partially modified embodiment;
  • 7 shows an enlarged illustration of details from FIG. 4.

Die Gliederklappe enthält einen rechteckigen Rahmen, dessen horizontale Rahmenteile 1 und 2 und vertikale Rahmenteile 3 und 4 eine Luftöffnung A umgeben, in der beim dargestellten Auführungsbeispiel fünf Lamellen 5 um ihre horizontalen Mittellinien 6 verschwenkbar gelagert sind. Die Gliederklappe ist, um zum Beispiel bei einem Wärmerückgewinner den Querschnitt eines durch den Wärmerückgewinner führenden Luftkanals und simultan den Querschnitt eines den Wärmerückgewinner umgehenden Bypass-Kanals zu verändern, so ergänzt, daß der Rahmen neben der Luftöffnung A eine von den verlängerten horizontalen Rahmenteilen 1 und 2 und von einem dritten vertikalen äußeren Rahmenseitenteil 7 umgebene zweite Luftöffnung B enthält, in der zweite Lamellen 8 um ihre horizontalen Mittellinien verschwenkbar gelagert sind. Die Lamellen 8 sind um 90° gegenüber den Lamellen 5 verdreht und mit den Lamellen 5 gekuppelt, so daß beim Öffnen der einen Luftöffnung gleichzeitig die andere Luftöffnung geschlossen wird. Die Figur 1 zeigt die Lamellen 5 der ersten Luftöffnung A in der geschlossenen Stellung und die zweiten Lamellen 8 der zweiten Luftöffnung B in der geöffneten Stellung. An dem mittleren senkrechten Rahmenteil 4 sind in gleicher Anzahl wie die Lamellen 6 Zahnräder 9 drehbar gelagert, mit denen die Lamellen 5 an einem Ende verbunden sind und über die die Lamellen 5 miteinander in Eingriff stehen. Zwischen den Zahnrädern 9 und den zweiten Lamellen 8 besteht eine nachfolgend noch beschriebene Verbindung, so daß über die Zahnräder 9 gemeinsam mit den ersten Lamellen 5 auch die zweiten Lamellen 8 miteinander in Eingriff stehen. Die Lamellen 5 sind an ihrem anderen Ende mit Aufnahmescheiben 10 verbunden, die an dem senkrechten Rahmenteil 3 drehbar gelagert sind. Die zweiten Lamellen 8 sind an ihrem den Zahnrädern 9 abgewandten Ende mit gleichartigen Aufnahmescheiben 11 verbunden, die an dem senkrechten Rahmenteil 7 drehbar gelagert sind. Der Stellantrieb aller Lamellen 5 und 8 erfolgt zentral an einem Antriebszapfen 12, der zum Beispiel mit einem Vierkant in eine beliebige ausgewählte Aufnahmescheibe 10 und Lamelle 5 eingesteckt ist. Wie die Figur 7 zeigt, bestehen die Lamellen 5 und 8 in üblicher Weise aus einem Hohlprofil, das an der Lamellenmittellinie eine Vierkantöffnung hat, in die bei den Lamellen 5 der Antriebszapfen 12 eingesteckt werden kann und bei den Lamellen 8 die noch beschriebene Verbindung mit den Zahnrädern 9 eingreift. An den Zahnrädern 9, an den Aufnahmescheiben 10 sowie an den Aufnahmescheiben 11 sind Halterungen für die Lamellen 5 und 8 angeordnet, die bei der in den Figuren 1 bis 5 gezeigten Ausführung der Gliederklappe aus paarweise fest an den Zahnrädern und Aufnahmescheiben angeordneten Haltelaschen 13 respektive aus fest an den Zahnrädern bzw. Aufnahmescheiben angeordneten Stützlaschen 14 und gegenüber liegend an den Zahnrädern und Aufnahmescheiben abnehmbar angeordneten Befestigungskeilen 15 bestehen. Wie insbesondere aus Figur 3 oder 4 ersichtlich ist, liegen die Haltelaschen 13 respektive die Stützlaschen 14 und Befestigungskeile 15 jeweils gegenüberliegend an beiden Seitenflächen einer Lamelle 5 beziehungsweise 8 an. Wie in den Figuren 3, 4 und 5 zu erkennen ist, besitzen die Haltelaschen, Stützlaschen und Befestigungskeile vorzugsweise rippenartig ausgebildete Vorsprünge 16, die in dazu passende nutartige Vertiefungen 17 auf den Lamellenseitenflächen einrasten, wodurch die Lamellen zwischen den Halteelementen 13, 14, 15 in der richtigen Lage positioniert und gegen Verschieben in der Lamellenebene fixiert sind. Zusätzlich unterstützt die in üblicher Weise zu beiden Lamellenrändern hin keilförmig sich verjüngende Lamellenquerschnittsform die Sicherung der Lamellen gegen Verschieben in den Halterungen an den Zahnrädern und an den Aufnahmescheiben. Nach dem Abnehmen des lösbaren Befestigungskeils 15 können die Lamellen 5 insbesondere bei der in Figur 3 gezeigten Offenstellung bequem und ohne jegliche weitere Demontage der Lüftungsgeräte in der Lamellenebene aus der Gliederkappe herausgezogen werden. Die paarweise an den Zahnrädern 9 und Aufnahmescheiben 10, desgleichen auch an den Aufnahmescheiben 11, fest angeordneten Haltelaschen sind so beschaffen beziehungsweise ausgebildet, daß sie etwas federnd auseinandergespreizt werden können, so daß zum Herausziehen einer Lamelle 5 aus dem Rahmen der Gliederklappe die Vorsprünge 16 der Haltelaschen genügend aus den Vertiefungen 17 der Lamelle ausrasten können. Die Zahnräder 9 und die Aufnahmescheiben 10 sind so an den senkrechten Rahmenteilen 3 und 4 drehbar gelagert, daß sie in die Luftöffnung A hinein von den senkrechten Rahmenteilen abziehbar sind. Nach dem vorstehend beschriebenen Herausziehen einer Lamelle 5 können also auch deren Zahnrad 9 und/oder Aufnahmescheibe 10 bequem für Reparaturarbeiten aus dem Rahmen der Gliederklappe ausgebaut werden. Wie die Figuren 2 und 5 zeigen, besitzen die die ersten Lamellen 5 tragenden und getrieblich miteinander verbindenden Zahnräder 9 Mitnehmerzapfen 18, die durch das senkrechte Rahmenteil 4 hindurch in die zweite Luftöffnung B hineinragen. Die zweiten Lamellen 8 sind an ihren den Aufnahmescheiben 11 abgewandten Enden mit der schon erwähnten, in der Lamellenmittellinie liegenden viereckigen Profilöffnung (Figur 7) auf die Mitnehmerzapfen 18 aufgesteckt und sind dadurch an diesem Lamellenende getragen, positioniert und drehfest mit den Zahnrädern 9 gekuppelt. An dem der Aufnahmescheibe 11 zugekehrten Ende ist jede Lamelle 8 analog wie die Lamellen 5 nach dem Abnehmen des Befestigungskeils 15 von der Aufnahmescheibe 11 aus den Haltelaschen 13 in der Lamellenebene herausziehbar. Für den Ausbau einer Lamelle 8 ist zuerst die in der Luftöffnung A liegende benachbarte Lamelle 5 in der beschriebenen Weise herauszunehmen und sodann das zugehörige Zahnrad 9 von dem senkrechten Rahmenteil 4 abzuziehen und dadurch der Mitnehmerzapfen 18 dieses Zahnrades aus der Lamelle 8 herauszuziehen, wonach die Lamelle 8 in ihrer Lamellenebene aus den Halterungen der Aufnahmescheibe 11 herausgezogen werden kann.The link flap contains a rectangular frame, the horizontal frame parts 1 and 2 and vertical frame parts 3 and 4 of which surround an air opening A, in which five slats 5 are pivotally mounted about their horizontal center lines 6 in the exemplary embodiment shown. The link flap is, for example in the case of a heat recovery device, to change the cross section of an air duct leading through the heat recovery device and simultaneously the cross section of a bypass channel bypassing the heat recovery device, so that the frame next to the air opening A is one of the extended horizontal frame parts 1 and 2 and contains a second air opening B surrounded by a third vertical outer frame side part 7, in which second slats 8 are mounted so as to be pivotable about their horizontal center lines. The slats 8 are rotated by 90 ° relative to the slats 5 and coupled to the slats 5, so that when the one air opening is opened, the other air opening is closed at the same time. FIG. 1 shows the fins 5 of the first air opening A in the closed position and the second fins 8 of the second air opening B in the open position. On the central vertical frame part 4, the same number as the lamellae 6 have gears 9 rotatably mounted, with which the lamellae 5 are connected at one end and via which the lamellae 5 are in engagement with one another. Between the gears 9 and the second plates 8 there is a connection described below, so that the gears 9 together with the first plates 5 also second slats 8 are engaged with each other. The slats 5 are connected at their other end to receiving disks 10 which are rotatably mounted on the vertical frame part 3. The second lamellae 8 are connected at their end facing away from the gear wheels 9 with similar receiving disks 11, which are rotatably mounted on the vertical frame part 7. The actuation of all the slats 5 and 8 takes place centrally on a drive pin 12, which is inserted, for example, with a square into any selected receiving disk 10 and slat 5. As shown in Figure 7, the slats 5 and 8 consist in the usual manner of a hollow profile that has a square opening on the slat center line, into which the drive pin 12 can be inserted in the slats 5 and the connection described above with the slats 8 Gears 9 engages. On the gearwheels 9, on the receiving disks 10 and on the receiving disks 11, holders for the lamellae 5 and 8 are arranged, which, in the embodiment of the link flap shown in FIGS. 1 to 5, consist respectively of holding tabs 13 arranged in pairs on the gearwheels and receiving disks there are support brackets 14 fixed to the gearwheels or holding disks and fastening wedges 15 which are removably arranged opposite to the gearwheels and holding disks. As can be seen in particular from FIG. 3 or 4, the retaining tabs 13 and the support tabs 14 and fastening wedges 15 each lie opposite one another on both side surfaces of a lamella 5 and 8, respectively. As can be seen in Figures 3, 4 and 5, the retaining tabs, support tabs and fastening wedges preferably have rib-shaped projections 16 which engage in matching groove-like depressions 17 on the slat side surfaces, as a result of which the slats between the holding elements 13, 14, 15 in positioned in the correct position and against moving in the slat plane are fixed. In addition, the slat-shaped cross-sectional shape tapering in a wedge-shaped manner towards both slat edges supports the securing of the slats against displacement in the holders on the gear wheels and on the receiving disks. After the detachable fastening wedge 15 has been removed, the slats 5 can be pulled out of the link cap comfortably and in particular in the open position shown in FIG. 3 and without any further disassembly of the ventilation devices in the slat plane. The paired on the gears 9 and receiving disks 10, likewise on the receiving disks 11, fixedly arranged retaining tabs are designed or designed so that they can be spread apart somewhat resiliently, so that the projections 16 of the slats 5 from the frame of the link flap Hold tabs enough to disengage from the recesses 17 of the slat. The gear wheels 9 and the receiving disks 10 are rotatably mounted on the vertical frame parts 3 and 4 in such a way that they can be pulled off into the air opening A from the vertical frame parts. After pulling out a slat 5 as described above, its gear 9 and / or receiving disk 10 can also be easily removed from the frame of the link flap for repair work. As FIGS. 2 and 5 show, the gear wheels 9, which support the first fins 5 and connect them to one another in terms of gears, have driver pins 18 which protrude through the vertical frame part 4 into the second air opening B. At their ends facing away from the receiving disks 11, the second slats 8, with the already mentioned square profile opening (FIG. 7) lying in the slat center line, are plugged onto the driver pins 18 and are thus carried, positioned and non-rotatably coupled to the gear wheels 9 on this slat end. At the end facing the receiving plate 11 is each lamella 8 can be pulled out analogously to the slats 5 after the fastening wedge 15 has been removed from the holding disk 11 from the holding tabs 13 in the slat plane. To remove a lamella 8, first remove the adjacent lamella 5 in the air opening A in the manner described and then pull off the associated gear 9 from the vertical frame part 4 and thereby pull the driving pin 18 of this gear out of the lamella 8, after which the lamella 8 can be pulled out in their slat plane from the holders of the receiving plate 11.

Bei der in Figur 6 gezeigten modifizierten Ausgestaltungsform der Gliederklappe, die der Erfüllung der in Normen festgelegten Dichtheit der mit den Lamellen 5 absperrbaren Luftöffnung A dient, sind an dem Zahnrad 9 und an der Aufnahmescheibe 10 die den lösbaren Befestigungskeilen gegenüberliegenden Stützlaschen und die an der gleichen Seitenfläche der Lamelle anliegenden Haltelaschen als durchgehende leistenförmige Abdeckungen 19 ausgebildet, welche eventuell sich bildende Spalte zwischen Lamelle 5 und Zahnrad 9 oder zwischen Lamelle 5 und Aufnahmescheibe 10 ausreichend dicht überdecken. Die Zahnräder 9 besitzen auf der den Lamellen 5 zugewendeten Seite eine Vertiefung, in die eine schraubenförmige Druckfeder 20 eingesetzt ist. Durch diese Feder 20, die sich einerseits an dem Zahnrad 9 und andererseits an der Lamelle 5 abstützt, werden Zahnrad 9 und Aufnahmescheibe 10 ausreichend dicht gegen die senkrechten Rahmenteile 3 bzw. 4 angedrückt.In the modified embodiment of the link flap shown in FIG. 6, which serves to fulfill the tightness of the air opening A which can be blocked with the slats 5, the support tabs opposite the releasable fastening wedges and on the same are on the gearwheel 9 and on the receiving disk 10 Side surface of the lamella adjoining retaining tabs are designed as continuous strip-shaped covers 19 which cover any gaps that may form between lamella 5 and gear 9 or between lamella 5 and receiving disk 10 in a sufficiently tight manner. The gear wheels 9 have a recess on the side facing the lamellae 5, into which a helical compression spring 20 is inserted. By means of this spring 20, which is supported on the one hand on the gear 9 and on the other hand on the lamella 5, the gear 9 and the receiving disk 10 are pressed sufficiently tight against the vertical frame parts 3 and 4, respectively.

Eine weitere vorteilhafte Ausgestaltungsmaßnahme der Gliederklappe, die herkömmliche besondere Gummilippendichtungen oder andere Gummidichtungselemente an den sich berührenden Lamellenrändern vermeidet bzw. entbehrlich macht, ist insbesondere in der Figur 7 dargestellt. Die Lamellen 5, gleichartig die Lamellen 8, kommen in der Schließstellung an ihren Lamellenrändern unmittelbar, ohne zusätzliche elastische Dichtungsmittel, in metallische Berührung. Hierzu sind die Lamellenränder weiterhin mit einem Querschnitt ausgebildet, der sich aus einem Vorsprung 21 und einer Vertiefung 22 zusammensetzt und im wesentlichen der Form eines Zahnes und einer Zahnlücke einer Evolventenverzahnung entspricht. Dadurch können die Lamellenränder so ausgebildet werden, daß sie auch schon kurz vor Erreichen der im rechten Teil der Figur 7 gezeigten senkrechten Schließ-Endstellung der Lamellen in Berührung kommen und daß damit also auch bei kleinen Winkelabweichungen von der exakten senkrechten Schließstellung immer ein zum Absperren der Luftöffnung erforderlicher Berührungspunkt zwischen den Profilquerschnitten der Lamellenränder vorhanden ist und daß weiterhin vom Beginn der Berührung der Lamellenränder bis zu der endgültigen Schließstellung der Lamellen die Lamellenränder nicht aneinander gleiten und reiben, sondern aufeinander abrollen.A further advantageous design measure of the link flap, which avoids or makes unnecessary conventional special rubber lip seals or other rubber sealing elements on the contacting lamella edges, is shown in particular in FIG. The slats 5, similar the slats 8 come in the closed position at their slat edges directly, without additional elastic sealing means, in metallic contact. For this purpose, the lamella edges are also formed with a cross section, which is composed of a projection 21 and a recess 22 and essentially corresponds to the shape of a tooth and a tooth gap of an involute toothing. As a result, the slat edges can be designed such that they come into contact shortly before reaching the vertical closing end position of the slats shown in the right part of FIG Air opening required contact point is present between the profile cross-sections of the slat edges and that continue to roll from rubbing instead of sliding and rubbing against each other from the beginning of the contact of the slat edges to the final closed position of the slats.

Claims (6)

  1. Segmental valve for ventilating or air conditioning installations including
    - a frame which has horizontal and vertical frame portions (1,2 and 3,4,7) and defines a first air opening (A),
    - a plurality of first flaps (5), which are pivotable in the first air opening (A) about their horizontal centre line and which are in engagement with one another via gear wheels (9) and sealingly contact one another at their opposed flap edges on counter rotation of each two adjacent first flaps into the closed position, whereby the gear wheels (9) are rotatably mounted in one (4) of the vertical frame portions, and
    - mountings (13,14) for carrying the first flaps (5), whereby the mountings and the flaps are provided with a releasable locking device (15,16,17) securing the flaps,
    characterised in that
    - each of the first flaps (5) is arranged directly between one of the gear wheels (9) and a mounting flange (10) which is rotatably mounted in another (3) of the vertical frame portions,
    - that the mountings (13,14) of each first flap (5) are arranged on the one hand on the associated gear wheel (9) and on the other hand on the associated mounting flange (10),
    - and that the mountings (13,14) engage both side surfaces of the associated first flap (5) and, after release of the locking devices (15,16,17), permit the withdrawal of the flap in the direction of the plane of the flap.
  2. Segmental valve as claimed in claim 1, characterised in that the flap (5) may be inserted on one side of its centre line between retaining lugs (13), which are arranged in pairs on the gear wheel (9) and on the mounting flange (10) and which engage both side surfaces of the flap and may be resiliently spread apart and engage with projections (16) in recesses (17) on the side surfaces of the flap, and is held on the other side of its centre line between a fastening wedge (15), which is removably arranged on the gear wheel (9) or on the mounting flange (10), and a support lug (14), which is fixedly arranged on the gear wheel or on the mounting flange, which also engage the two side surfaces of the flap with projections and recesses engaging with one another.
  3. Segmental valve as claimed in claim 1 or 2, characterised in that in addition to the first air opening (A), the frame also includes a second air opening (B), that the gear wheels (9) situated in the first air opening are retractable from the vertical frame portion (4) supporting the gear wheels into the first air opening (A) and include carrier pegs (18) which project through the frame portion (4) into the second air opening (B), that arranged in the second air opening (B) there are second flaps (8) which are pluggable onto the carrier pegs (18) with one end in a rotationally coupling manner offset by 90° with respect to the first flap (5) and are held at the other end between retaining lugs (13), fastening wedges (15) and support lugs (14) by mounting flanges (11) mounted on an outer side portion (7) of the frame so as to be withdrawable out of these mountings in the plane of the flap.
  4. Segmental valve as claimed in claim 3, characterised in that the mounting flanges (10,11) in the first and second air opening (A,B) are withdrawable from the frame portions (3,7) supporting the flanges into the openings.
  5. Segmental valve as claimed in claim 2, characterised in that the retaining lugs (13), which engage the same side surface of a first flap (5) situated in the first air opening (A), and support lugs (14) of the gear wheel (9) and support flange (10) are constructed as a continuous strip-shaped cover (19) for the gaps between the flap and gear wheel and flap and mounting flange, respectively, and that the gear wheel includes a compression spring (20) in a recess engaging the gear wheel and the flap by means of which the gear wheel (9) and mounting flange (10) are sealingly pressable against the vertical frame portions (3,4).
  6. Segmental valve as claimed in one of claims 1 to 5, characterised in that the flap edges, which metallically contact one another in the closed position of the first and second flaps (5,8) without additional elastic sealing means, are constructed with a cross-section which substantially corresponds to the shape of a tooth (21) and a tooth gap (22) of an involute gear.
EP92114457A 1991-11-07 1992-08-25 Valve with several elements for ventilation and air conditioning systems Expired - Lifetime EP0540844B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9113833U DE9113833U1 (en) 1991-11-07 1991-11-07 Articulated damper for ventilation and air conditioning systems
DE9113833U 1991-11-07

Publications (3)

Publication Number Publication Date
EP0540844A2 EP0540844A2 (en) 1993-05-12
EP0540844A3 EP0540844A3 (en) 1993-11-24
EP0540844B1 true EP0540844B1 (en) 1996-10-23

Family

ID=6873010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92114457A Expired - Lifetime EP0540844B1 (en) 1991-11-07 1992-08-25 Valve with several elements for ventilation and air conditioning systems

Country Status (5)

Country Link
EP (1) EP0540844B1 (en)
AT (1) ATE144613T1 (en)
DE (2) DE9113833U1 (en)
DK (1) DK0540844T3 (en)
NO (1) NO178776C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403956B (en) * 1995-12-01 1998-07-27 Weger Klimageraete Ges M B H Air regulating flap for ventilation appliances

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7502365U (en) * 1974-02-01 1975-10-16 Aeronca Inc Mixing valve, e.g. for air flows
CH613270A5 (en) * 1976-09-08 1979-09-14 Schmidhammer J Euroclima S A S Air-regulating flap for air-conditioning installations
DE7628313U1 (en) * 1976-09-10 1976-12-30 Siegwart, Emil, 6603 Sulzbach CLOSING FLAP FOR VENTILATION SYSTEM
US4503755A (en) * 1982-09-15 1985-03-12 Idea Development Engineers Of Arizona, Inc. Louver system
GB2146426B (en) * 1983-09-09 1987-04-29 Actionair Equip Dampers for ventilation systems
CH667709A5 (en) * 1985-11-19 1988-10-31 Schmidlin Ag FRAME PROFILE.
DE3602120A1 (en) * 1986-01-24 1987-08-06 Guenter Junkes Heizung Klima G Control flap for a combined supply- and exhaust-air apparatus

Also Published As

Publication number Publication date
NO178776C (en) 1996-05-29
NO924253L (en) 1993-05-10
NO924253D0 (en) 1992-11-05
NO178776B (en) 1996-02-19
DE59207430D1 (en) 1996-11-28
EP0540844A3 (en) 1993-11-24
EP0540844A2 (en) 1993-05-12
ATE144613T1 (en) 1996-11-15
DE9113833U1 (en) 1992-01-02
DK0540844T3 (en) 1997-04-01

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