EP3299725A1 - Vapour extraction device with cover for a housing aperture of the housing of the vapour extraction device - Google Patents

Vapour extraction device with cover for a housing aperture of the housing of the vapour extraction device Download PDF

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Publication number
EP3299725A1
EP3299725A1 EP17186901.9A EP17186901A EP3299725A1 EP 3299725 A1 EP3299725 A1 EP 3299725A1 EP 17186901 A EP17186901 A EP 17186901A EP 3299725 A1 EP3299725 A1 EP 3299725A1
Authority
EP
European Patent Office
Prior art keywords
housing
cover
eccentric
extractor
extraction device
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
EP17186901.9A
Other languages
German (de)
French (fr)
Other versions
EP3299725B1 (en
Inventor
Christian DREXLER
Andreas Thumm
Vadim LEICHT
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3299725A1 publication Critical patent/EP3299725A1/en
Application granted granted Critical
Publication of EP3299725B1 publication Critical patent/EP3299725B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGESĀ ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes

Definitions

  • the present invention relates to a fume extraction device with cover for a housing opening of the extractor housing of a fume extraction device.
  • edge suction means that the actual filter surfaces, which lie in the housing opening or lie downstream of the housing opening, are covered by a metal or glass cover.
  • a baffle plate runs a circumferential gap, enters the vapors or is sucked.
  • a disadvantage is that even in the state in which the extractor device is not used, the edge gap is open and impurities such as dust and the like can enter into the extractor device and can be deposited on the filter elements. In addition, if necessary, odors can escape via the edge gap.
  • a cooking device in which a hob can be accommodated in the bottom of a cooker hood and this can be closed over it.
  • the hob is guided here by telescopic rods and driven manually and / or motor.
  • a disadvantage of this device is the one in the complex structure of the device and the other is that when retracting the hob in the hood danger to the user that this pinches his fingers.
  • Object of the present invention is therefore to provide a cooker hood, which has an improved visual appearance with a simple design, but still on the one hand a reliable extraction of fumes and vapor allowed and with the other a pinch protection for the user can be created.
  • a fume extractor with a fume hood, a housing provided in the extractor housing opening and at least one cover for at least a portion of the housing opening.
  • the extractor device is characterized in that the cover to the extractor housing is movably mounted and the extractor device comprises an actuator having at least one eccentric which is arranged so that it with the side of the cover, which faces the interior of the extractor housing, in Contact can be brought.
  • the extractor device can be a dining table, a ceiling ventilator or a desk ventilator, which can also be referred to as a tray ventilator.
  • the extractor device has a fume hood housing.
  • at least one filter element is preferably arranged.
  • the filter element or the filter elements preferably represent flat filter elements, which can also be referred to as filter cassettes.
  • the fan of the extractor device is preferably arranged in the extractor housing.
  • the extractor housing has a housing opening, which can also be referred to as a suction opening. At least partially, air can enter the extractor housing via this housing opening.
  • the extractor housing for example, when eating the outer casing of the extractor device represent or of a cladding element, such as be surrounded for example by a fireplace.
  • a ceiling fan the extractor housing on or in the ceiling of the room in which the extractor device is operated, on or introduced.
  • the extractor housing may also be attached indirectly to the ceiling, for example by means of cables or wires, which may optionally be adjustable in length.
  • a desk ventilator which is also referred to as a tray ventilator
  • the extractor housing is integrated in a worktop next to a hob or in the hob.
  • the extractor device also has at least one cover for at least part of the housing opening.
  • a cover here is a component, which preferably represents a plate or flap, which is arranged so that it lies in the flow direction in front of the filter element and at least partially covers the filter surface in the vertical projection on the filter surface of the filter element.
  • the cover is at least temporarily in the housing opening or is located in the region of the housing opening. The cover closes the housing opening either alone or together with other parts, such as a center plate.
  • the cover according to the invention is movably mounted to the extractor housing.
  • the cover can perform a translatory movement and / or a pivoting movement relative to the extractor housing and in particular the housing opening.
  • the cover can be brought into at least two different positions, one being referred to as a rest position and one as an operating position.
  • the rest position the cover is in a state in which this rests on the extractor housing or is accommodated in this in the housing opening.
  • the operating position the cover is in a state in which at least a portion of the cover is removed from the extractor housing, that is not in the extractor housing and not in the housing opening and thereby air can enter the extractor housing.
  • the cover is in the operating position, the extractor device can be operated, that is sucked in polluted air and cleaned, in particular filtered.
  • the extractor device comprises an actuating device.
  • the cover By means of the actuator, the cover can be moved.
  • the cover can be brought at least from one position to another position.
  • the cover is brought by the actuator from a rest position to an operating position or from the operating position to the rest position. The transition between these two positions can be stepless.
  • the cover can be stopped in any intermediate position.
  • the actuating device has at least one eccentric, which is arranged so that it can be brought into contact with the side of the cover, which faces the interior of the extractor housing.
  • an eccentric is understood in the context of the invention, in particular a component which can be mounted on a shaft and having a circumference which is not rotationally symmetrical.
  • the eccentric can therefore also be referred to as a cam wheel.
  • the eccentric preferably has a parabolic shape over a part of the circumference.
  • a component may also be referred to as an eccentric having a spiral circumference.
  • the periphery of the eccentric is in contact with or in contact with the cover.
  • This means that the axis of the eccentric is parallel to the surface of the cover.
  • the eccentric or the eccentric are preferably attached to one or more side walls of the extractor housing, that is stored. In this case, the or the eccentrics can come into direct contact with the cover.
  • the eccentric or the eccentric are arranged at the top of the extractor housing. In this case, intermediate elements, which optionally protrude through the top of the extractor housing, can be used, over which the eccentric or the one can apply a force on the cover (s).
  • the contact between the cover and the eccentric is indirect. By direct or indirect contact, a force from the eccentric can be applied to the cover.
  • the side against which the eccentric bears against the cover is the side which faces the interior of the extractor housing and therefore preferably the filter element (s).
  • This page is at a fume extraction device, which is a ceiling fan or a dining with horizontal housing opening, the top of the Cover.
  • a fume extractor which is a table fan with horizontal housing opening
  • this side is the bottom of the cover.
  • the eccentric can rest directly on this side of the cover.
  • intermediate elements are provided, which extend from this side upwards, optionally through the top of the extractor housing through or at a table fan down, optionally through the bottom of the extractor housing and that the eccentric on this or these intermediate elements acts.
  • the cover By using an actuator having at least one eccentric disposed to contact the side of the cover facing the interior of the extractor housing, the cover can be easily moved relative to the extractor housing , In particular, the cover can be pushed away by the eccentric from the extractor housing or brought to this. As a result, the operating position or rest position of the cover can be adjusted.
  • the path of movement of the cover can be defined by the difference between the largest and the smallest radius of the eccentric. Therefore, by suitable choice of the size of the eccentric, the travel can be easily adjusted.
  • the user can be protected in this actuator in a simple manner.
  • a slip clutch can be used on the bearing of the eccentric.
  • pinch protection can be ensured by a suitable choice of the spring force of a spring element, in particular a return field, by which the cover is moved towards the extractor housing.
  • the actuating device has a drive motor for driving the eccentric.
  • the drive motor is preferably an electric motor.
  • the drive motor can be controlled, for example, via the control of the extractor device.
  • the drive motor can be controlled such that it moves the eccentric so that the cover is brought from the rest position into the operating position or vice versa.
  • the eccentric is mounted on the motor shaft of the drive motor. This simplifies the entire construction of the extractor device. In addition, the power to be provided by the drive motor is not increased by overcoming leverage.
  • the actuating device preferably comprises at least one spring element.
  • the spring element is arranged so that its spring force is directed opposite to the direction of a force applied by the eccentric on the cover force.
  • the spring element preferably represents a return spring, that is to say that the spring element holds the cover in a rest position.
  • the eccentric is in an operating position of the cover with the eccentric nose on the cover.
  • an eccentric nose in this case the largest eccentricity, that is, the area where the eccentric has the largest radius understood.
  • the eccentric rests in the rest position or not on a part of the circumference with the smallest radius and in the operating position with a part of the circumference, which is between the smallest and the largest radius is applied to the cover.
  • for the retraction and extension of the cover of the eccentric is rotated in each case in a different direction.
  • the cover is a baffle plate.
  • the baffle plate is a plate which, in the operating position with the extractor housing, forms a circumferential gap through which air can enter into the extractor housing.
  • the baffle plate covers at least part of the housing opening of the extractor housing and in particular of the one or more arranged in the extractor housing filter elements in the flow direction.
  • the baffle plate covers at least part of the filter surface, that is to say the upstream side of the filter element (s).
  • the baffle In the rest position, the baffle preferably closes the entire housing opening of the extractor housing.
  • the cover is moved in translation to the extractor housing, that is, extended from this or retracted. This ensures that the edge gap is uniform over the circumference of the baffle plate and thus a uniform suction of air can be ensured.
  • the translational movement can be performed in the extractor device according to the invention by one or more guide elements. The actual movement, however, is done by the eccentric.
  • a single eccentric can be used when the force caused by this is distributed to the cover by guide elements or tilting of the cover is prevented in other ways.
  • a plurality of eccentrics are used in the actuator in a baffle plate. In this way, on the one hand a uniform force application can be ensured on the cover. On the other hand, the requirements for drive motors that can drive the eccentric can be lowered.
  • the cover is preferably mounted for vertical movement in the extractor housing.
  • Guide elements such as rails or rods may be provided.
  • at least one spring element is preferably provided, by means of which the cover can be moved in a direction of movement directed counter to the direction of movement caused by the eccentric.
  • the cover is a flap which is pivotally mounted on the extractor housing via a hinge.
  • an actuator comprising at least one eccentric
  • the flap can be brought by the eccentric from a rest position to an operating position or from an operating position to a rest position.
  • the operating position of the flap is the position in which it is pivoted upwards relative to the extractor housing or upwards in the case of a table ventilator.
  • a rest position the position is referred to, in which the flap lies in the housing opening of the extractor housing or rests against this.
  • the eccentric can act as a cover on a flap on the region of the flap which is to be pivoted in the operating state relative to the housing opening.
  • the eccentric acts on the region of the flap which, when the flap is pivoted, remains in the housing opening or is pivoted upwardly or downwardly toward the latter.
  • the flap is connected via a hinge with the extractor housing, which is formed by a connecting rod and the eccentric.
  • the connecting rod is in this case preferably attached to the flap or the extractor housing so that one end of the connecting rod can move in a slot.
  • the rod may for example have an enlargement, which holds the connecting rod in the slot.
  • the flap is mounted in the vicinity of an edge of the cover to the extractor housing.
  • the eccentric can act on the area between the edge and the bearing point.
  • the eccentric or eccentric are arranged in this embodiment, that at the edge near which the flap is mounted, at least temporarily at the top of the Flap is applied.
  • the flap is held by the eccentric nose in the rest position, that is the closed position. In the operating position in which the flap is pivoted to the extractor housing, the eccentric is located with a portion of the circumference at the top of the flap, in which it has a smaller radius than at the eccentric nose.
  • a separate spring element by which the cover can be brought from an operating position to the rest position, is not required.
  • the construction of the extractor device is further simplified.
  • the at least one flap is arranged on a center plate of the extractor housing, which is firmly connected to the extractor housing.
  • one or more flaps may be disposed on the center plate.
  • a flap can rest on two opposite edges of the center plate. In the rest position of the flaps, the flaps lie with the center plate of the extractor housing in a plane and thus close together the housing opening of the extractor housing.
  • a lighting device of the extractor device can be arranged in the center plate.
  • the flap has an indentation on an edge over which the flap can be supported in the rest position on a projection of the extractor housing or a central plate fixedly mounted in the housing opening of the extractor housing.
  • a plurality of eccentrics are provided in the actuating device, which are at least partially driven by a common drive motor become.
  • two or more eccentrics may be rigidly connected to each other via a shaft located in the axis of the eccentric shaft.
  • a drive motor can then engage the connecting rod and thereby drive the eccentric simultaneously.
  • the extractor device is a ceiling ventilator.
  • the ceiling ventilator is in particular a vapor extractor device which is fastened to or mounted in a room ceiling.
  • the housing opening of the extractor housing which is to be covered by the cover or covers, lies in the horizontal.
  • the force of gravity which acts on the covers, at least partially be used when extending or pivoting the covers.
  • the extractor device may be a table ventilator in which the force of gravity acting on the covers is at least partially utilized when retracting or swiveling the covers.
  • the extractor device 1 is a ceiling fan.
  • the extractor device 1 comprises a fume hood housing 10 and a cover 17, which is a baffle plate 12 in the illustrated embodiment.
  • the extractor device 1 also has a frame 11, which can also be referred to as Wrasentub.
  • Wrasentub In the extractor housing 10 is located in the bottom of a housing opening 100, is to be sucked through the air in the extractor housing 10.
  • Inside the extractor housing 10 at least one filter element (not shown) is arranged.
  • the extractor device 1 a fan (not shown).
  • the baffle plate 12 is arranged in the operating position in the flow direction in front of the housing opening 100. In the illustrated embodiment, the baffle plate 12 is therefore below the housing opening 100.
  • the baffle plate 12 has a size that corresponds to the size of the housing opening 100 at least. Between the bottom of the extractor housing 10 and the top of the baffle plate 12, an edge gap 13 is formed, can enter through the air into the extractor housing 10.
  • the cover 17, which is formed as a baffle plate 12, is movably attached to the extractor housing 10. The movement of the baffle plate 12 by means of an actuator 2, in the FIG. 2 is shown in more detail.
  • the actuator 2 has an eccentric 21.
  • the eccentric 21 is driven by a drive motor 20, that is, can be moved over this.
  • the eccentric 21 is mounted on the motor shaft 200 of the drive motor 20.
  • the eccentric 21 and the drive motor 20 are attached to a side wall of the extractor housing 10.
  • a spring element 22 is attached to the upper end of the extractor housing 10 at the top.
  • the lower end of the spring element 22 is connected to the top of the baffle plate 12, for example, introduced into this.
  • FIG. 2 is the operating position of the baffle plate 12, that is shown from the extractor housing 10 downwardly extended position.
  • the eccentric 21 In this operating position, the eccentric 21 is rotated so that the Exzenternase 210 of the eccentric 21 rests against the top of the baffle plate 12. As a result, the baffle plate 12 is pressed against the force acting through the spring element 22 on the baffle plate 12 and pulls it upwards, down. If the eccentric 21 is rotated from this position in a certain angular amount, the circumference of the eccentric 21 runs along the upper side of the baffle plate 12. Since the radius of the eccentric 21 decreases, the baffle plate 12 can be pulled by the spring force of the spring element 22 upwards. In a rest position, the baffle plate 12 shown is located in the housing opening 100 of the extractor housing 10.
  • the baffle plate 12 may rest against a portion of the circumference of the eccentric 21, which has a small radius than the eccentric nose 210.
  • the baffle plate 12, which is pulled upwards by the spring element 22 can be prevented from penetrating further into the housing opening 100.
  • the spring element 22 can also be designed so that it has a length in the relaxed state, which corresponds to the distance between the baffle plate 12 located in the housing opening 100 and the top of the extractor housing 10.
  • the eccentric 21 may be disposed in the extractor housing 10 at a height such that the region of small radius is spaced from the top of the baffle 12 in the rest position because there is no counteracting force from the eccentric 21 due to the lack of spring force must be applied.
  • stops on the extractor housing 10 may be provided which prevent the baffle plate 12 against the spring force of the spring element 22 from further penetration beyond the rest position in the extractor housing 10.
  • FIGS. 3 to 5 a second embodiment of the extractor device 1 according to the invention is shown.
  • the extractor device 1 a fume hood housing 10, of which in FIG. 3 only one frame 11 can be seen.
  • the extractor housing 10 is integrated in a room wall.
  • the frame 11 may also be formed by the underside of the extractor housing 10.
  • the extractor device 1 according to the second embodiment can also as in the FIG. 1 be shown mounted under the ceiling and have a larger frame 11, which can be referred to as Wrasentub.
  • two covers 17, which are formed as flaps 15, are provided on the housing opening 100.
  • a center plate 14 is inserted into the housing opening.
  • the middle plate 14 is firmly connected to the extractor housing 10.
  • a flap 15 is arranged in each case.
  • the flaps 15 are in the FIG. 3 shown in the operating position. In this position, the flaps 15 are pivoted relative to the surface of the center plate 14 and thus with respect to the surface of the housing opening 100 down.
  • the edge of the flap is pivoted downward, which faces away from the center plate 14.
  • a suction gap 16 is formed between the flaps 15 and the housing opening 100.
  • FIGS. 4 and 5 is an embodiment of the actuator 2 for the embodiment of the extractor device 1, in which the covers 17 show flaps 15, in particular for the embodiment according to FIG. 3 shown.
  • the actuator 2 comprises an eccentric 21 and a connecting rod 23.
  • the connecting rod 23 is fixed to the top of the extractor housing 10 with the upper end of the connecting rod 23.
  • the lower end of the connecting rod 23 is received in a slot 24 in the top of the flap 15.
  • a thickening or enlargement is preferably provided, by which the lower end is held in the slot 24.
  • the connecting rod 23 is connected in the vicinity of the edge of the flap 15 with this, with which the flap 15 rests against the central plate 14. In the illustrated embodiment, this edge has a recess 150, which can engage with a rounded projection 140 on the center plate 14.
  • the edge of the flap 15 which rests against the central plate 14 without indentation and design the center plate 14 without a projection.
  • the eccentric 21 is arranged on the side wall of the extractor housing 10.
  • the eccentric 21 is arranged at a position which lies over the edge of the flap 10, which bears against the center plate 14.
  • the eccentric 21 is mounted at a height in which the eccentric nose 210 when facing down, on the top of the flap 15 in the Rest position is present. This rest position, in which the flap 15 lies in the plane of the middle plate 14, is in FIG. 5 shown.
  • the eccentric cam 210 presses the one side of the flap 15 downwards and against the projection 140 on the middle plate 14. If the eccentric 21 is rotated out of this angular position, the flap 15 can, due to its own weight, be at the end facing away from the middle plate 14, swivel down.
  • the invention has been described essentially with reference to embodiments in which the extractor device is a ceiling fan.
  • an extractor device which is a table ventilator, which may also be referred to as a tray ventilator
  • the embodiments of the actuators shown in the figures and described above can be used accordingly.
  • the direction of movement of the covers in these embodiments is then opposite to those described.
  • the cover which is a baffle
  • the cover is urged upwardly from a rest position to an operative position, and pivoted upward from a rest position to an operative position with a cover that is a flap, each movement being by an eccentric can.
  • the components of the actuator are provided at a table fan below the cover.
  • a fume extraction device in particular an extractor hood, which may be, for example, a dining or a ceiling fan.
  • the extractor device has one or more movable covers, in particular baffles and / or flaps.
  • a baffle plate from a spring-rest position which can also be referred to as a passive position
  • an eccentric in the operating position which can also be referred to as an active position
  • the eccentric is mounted on the motor shaft of a drive motor and by turning the motor shaft, a stroke is realized. This can be for example 25mm.
  • the covers are flaps, an analogue system can be used.
  • the present invention has a number of advantages.
  • a small space in the front end is required and therefore easier cleaning and easier folding of the baffle plate possible.
  • a pinch protection is given, since only one spring force acts.
  • a slip coupling is possible.
  • a continuous adjustment of the baffle plate (s) - and flap position is possible.
  • a mechanical decoupling of drive motor and flapper / flap is given.
  • the position can be precisely defined by end stops and approached with high position accuracy.

Abstract

Die vorliegende Erfindung betrifft eine Dunstabzugsvorrichtung mit einem DunstabzugsgehƤuse (10), einer in dem DunstabzugsgehƤuse (10) vorgesehenen GehƤuseƶffnung (100) und mindestens einer Abdeckung (17, 12, 15) fĆ¼r zumindest einen Teil der GehƤuseƶffnung (100). Die Dunstabzugsvorrichtung (1) ist, dadurch gekennzeichnet, dass die Abdeckung (17, 12, 15) zu dem DunstabzugsgehƤuse (10) beweglich gelagert ist und die Dunstabzugsvorrichtung (1) eine BetƤtigungsvorrichtung (2) umfasst, die mindestens einen Exzenter (21) aufweist, der so angeordnet ist, dass dieser mit der Seite der Abdeckung (17, 12, 15), die dem Inneren des DunstabzugsgehƤuses (10) zugewandt ist, in Kontakt gebracht werden kann.The present invention relates to a fume extraction device with a fume hood housing (10), a housing opening (100) provided in the fume hood housing (10) and at least one cover (17, 12, 15) for at least a portion of the housing opening (100). The extractor device (1) is characterized in that the cover (17, 12, 15) is movably mounted to the extractor housing (10) and the extractor device (1) comprises an actuator (2) having at least one eccentric (21) arranged to be brought into contact with the side of the cover (17, 12, 15) facing the interior of the extractor housing (10).

Description

Die vorliegende Erfindung betrifft eine Dunstabzugsvorrichtung mit Abdeckung fĆ¼r eine GehƤuseƶffnung des DunstabzugsgehƤuses einer Dunstabzugsvorrichtung.The present invention relates to a fume extraction device with cover for a housing opening of the extractor housing of a fume extraction device.

Herkƶmmliche Dunstabzugshauben verfĆ¼gen Ć¼ber FilterflƤchen zur Fettabscheidung des beim Kochen entstehenden Luft-Wasser-Fettgemisches, das auch als Wrasen bezeichnet wird. Ɯblicherweise werden hierbei Metallgewebefilter oder Streckmetallfilter eingesetzt, die an der dem Kochfeld zugewandten Unterseite der Dunstabzugshaube befindlich sind.Conventional extractor hoods have filter surfaces for grease separation of the resulting air-water-fat mixture, which is also referred to as vapors. Usually this metal mesh filters or expanded metal filters are used, which are located on the cooktop facing the bottom of the hood.

FĆ¼r Dunstabzugsvorrichtungen, insbesondere Dunstabzugshauben, ist in den letzten Jahren vorgeschlagen worden, die Absaugƶffnung der Dunstabzugshaube, die auch als GehƤuseƶffnung des DunstabzugsgehƤuses bezeichnet werden kann, mit einer Prallplatte weitestgehend abzudecken. Diese Art der Absaugung wird auch als Randabsaugung bezeichnet. Hierbei bedeutet Randabsaugung, dass die eigentlichen FilterflƤchen, die in der GehƤuseƶffnung liegt oder in Strƶmungsrichtung hinter der GehƤuseƶffnung liegt, von einer Metall- oder Glasabdeckung kaschiert werden. Um diese Abdeckung, die auch als Prallplatte bezeichnet wird, verlƤuft ein umlaufender Spalt, in den Wrasen eintritt beziehungsweise eingesaugt wird. Der Vorteil dieser GerƤtegestaltung besteht darin, dass diese eine gute optische Gesamterscheinung hat und eventuelle Verschmutzungen der FilterflƤche nicht offensichtlich werden. Ein Nachteil besteht aber darin, dass auch in dem Zustand, in dem die Dunstabzugsvorrichtung nicht verwendet wird, der Randspalt offen ist und darĆ¼ber Verunreinigungen, wie Staub und dergleichen in die Dunstabzugsvorrichtung eintreten kƶnnen und sich an den Filterelementen ablagern kƶnnen. Zudem kƶnnen gegebenenfalls GerĆ¼che Ć¼ber den Randspalt austreten.For extractor devices, in particular extractor hoods, it has been proposed in recent years, the exhaust opening of the hood, which can also be referred to as the housing opening of the extractor hood to cover as far as possible with a baffle plate. This type of suction is also referred to as edge suction. In this case, edge suction means that the actual filter surfaces, which lie in the housing opening or lie downstream of the housing opening, are covered by a metal or glass cover. To this cover, which is also referred to as a baffle plate, runs a circumferential gap, enters the vapors or is sucked. The advantage of this device design is that it has a good visual appearance and any contamination of the filter surface are not obvious. A disadvantage, however, is that even in the state in which the extractor device is not used, the edge gap is open and impurities such as dust and the like can enter into the extractor device and can be deposited on the filter elements. In addition, if necessary, odors can escape via the edge gap.

Aus der DE 103 09 226 A1 ist eine Kochvorrichtung bekannt, bei der ein Kochfeld in die Unterseite einer Dunstabzugshaube aufgenommen werden kann und diese darĆ¼ber verschlossen werden kann. Das Kochfeld wird hierbei Ć¼ber Teleskopstangen gefĆ¼hrt und manuell und/oder motorisch angetrieben. Ein Nachteil dieser Vorrichtung besteht zum einen in dem aufwƤndigen Aufbau der Vorrichtung und zum anderen darin, dass beim Einfahren des Kochfeldes in die Dunstabzugshaube eine Gefahr fĆ¼r den Benutzer besteht, dass dieser seine Finger einklemmt.From the DE 103 09 226 A1 a cooking device is known in which a hob can be accommodated in the bottom of a cooker hood and this can be closed over it. The hob is guided here by telescopic rods and driven manually and / or motor. A disadvantage of this device is the one in the complex structure of the device and the other is that when retracting the hob in the hood danger to the user that this pinches his fingers.

Aufgabe der vorliegenden Erfindung ist es daher eine Dunstabzugshaube zu schaffen, die ein verbessertes optisches Erscheinungsbild bei einfachem Aufbau hat, die aber dennoch zum einen ein zuverlƤssiges Absaugen von DĆ¼nsten und Wrasen erlaubt und mit der zum anderen ein Einklemmschutz fĆ¼r den Benutzer geschaffen werden kann.Object of the present invention is therefore to provide a cooker hood, which has an improved visual appearance with a simple design, but still on the one hand a reliable extraction of fumes and vapor allowed and with the other a pinch protection for the user can be created.

Diese Aufgabe wird erfindungsgemƤƟ gelƶst durch eine Dunstabzugsvorrichtung mit einem DunstabzugsgehƤuse, einer in dem DunstabzugsgehƤuse vorgesehenen GehƤuseƶffnung und mindestens einer Abdeckung fĆ¼r zumindest einen Teil der GehƤuseƶffnung. Die Dunstabzugsvorrichtung ist dadurch gekennzeichnet, dass die Abdeckung zu dem DunstabzugsgehƤuse beweglich gelagert ist und die Dunstabzugsvorrichtung eine BetƤtigungsvorrichtung umfasst, die mindestens einen Exzenter aufweist, der so angeordnet ist, dass dieser mit der Seite der Abdeckung, die dem Inneren des DunstabzugsgehƤuses zugewandt ist, in Kontakt gebracht werden kann.This object is achieved by a fume extractor with a fume hood, a housing provided in the extractor housing opening and at least one cover for at least a portion of the housing opening. The extractor device is characterized in that the cover to the extractor housing is movably mounted and the extractor device comprises an actuator having at least one eccentric which is arranged so that it with the side of the cover, which faces the interior of the extractor housing, in Contact can be brought.

Als Dunstabzugsvorrichtung wird eine Vorrichtung bezeichnet, mittels derer DĆ¼nste und Wrasen, die beispielsweise beim Kochen entstehen, eingesaugt und gereinigt, insbesondere gefiltert werden kƶnnen. Die Dunstabzugsvorrichtung kann insbesondere eine Esse, einen DeckenlĆ¼fter oder einen TischlĆ¼fter, der auch als MuldenlĆ¼fter bezeichnet werden kann, darstellen. Die Dunstabzugsvorrichtung weist ein DunstabzugsgehƤuse auf. In diesem DunstabzugsgehƤuse ist vorzugsweise zumindest ein Filterelement angeordnet. Das Filterelement oder die Filterelemente stellen vorzugsweise flƤchige Filterelemente dar, die auch als Filterkassetten bezeichnet werden kƶnnen. Zudem ist vorzugsweise in dem DunstabzugsgehƤuse der LĆ¼fter der Dunstabzugsvorrichtung angeordnet. Das DunstabzugsgehƤuse weist eine GehƤuseƶffnung auf, die auch als Ansaugƶffnung bezeichnet werden kann. Ɯber diese GehƤuseƶffnung kann zumindest bereichsweise Luft in das DunstabzugsgehƤuse eintreten.As a vapor extraction device, a device is referred to, by means of which fumes and vapor, which arise for example during cooking, sucked in and cleaned, in particular can be filtered. In particular, the extractor device can be a dining table, a ceiling ventilator or a desk ventilator, which can also be referred to as a tray ventilator. The extractor device has a fume hood housing. In this extractor housing, at least one filter element is preferably arranged. The filter element or the filter elements preferably represent flat filter elements, which can also be referred to as filter cassettes. In addition, the fan of the extractor device is preferably arranged in the extractor housing. The extractor housing has a housing opening, which can also be referred to as a suction opening. At least partially, air can enter the extractor housing via this housing opening.

Das DunstabzugsgehƤuse kann beispielsweise bei Essen das AuƟengehƤuse der Dunstabzugsvorrichtung darstellen oder von einem Verkleidungselement, wie beispielsweise einem Kamin umgeben sein. Bei einem DeckenlĆ¼fter kann das DunstabzugsgehƤuse an oder in die Raumdecke des Raumes, in dem die Dunstabzugsvorrichtung betrieben wird, an- oder eingebracht werden. Das DunstabzugsgehƤuse kann auch mittelbar an der Raumdecke befestigt sein, beispielsweise mittels Seilen oder DrƤhten, die gegebenenfalls auch lƤngenverstellbar sein kƶnnen. Bei einem TischlĆ¼fter, der auch als MuldenlĆ¼fter bezeichnet wird, ist das DunstabzugsgehƤuse in einer Arbeitsplatte neben einem Kochfeld oder in dem Kochfeld integriert.The extractor housing, for example, when eating the outer casing of the extractor device represent or of a cladding element, such as be surrounded for example by a fireplace. In a ceiling fan, the extractor housing on or in the ceiling of the room in which the extractor device is operated, on or introduced. The extractor housing may also be attached indirectly to the ceiling, for example by means of cables or wires, which may optionally be adjustable in length. In a desk ventilator, which is also referred to as a tray ventilator, the extractor housing is integrated in a worktop next to a hob or in the hob.

Die erfindungsgemƤƟe Dunstabzugsvorrichtung weist zudem mindestens eine Abdeckung fĆ¼r zumindest einen Teil der GehƤuseƶffnung auf. Als Abdeckung wird hierbei ein Bauteil, das vorzugsweise eine Platte oder Klappe darstellt, bezeichnet, das so angeordnet ist, dass dieses in Strƶmungsrichtung vor dem Filterelement liegt und die FilterflƤche in senkrechter Projektion auf die FilterflƤche des Filterelementes zumindest teilweise abdeckt. Die Abdeckung liegt zumindest zeitweise in der GehƤuseƶffnung oder liegt im Bereich der GehƤuseƶffnung an. Die Abdeckung verschlieƟt die GehƤuseƶffnung entweder alleine oder zusammen mit weiteren Teilen, wie beispielsweis einer Mittelplatte.The extractor device according to the invention also has at least one cover for at least part of the housing opening. As a cover here is a component, which preferably represents a plate or flap, which is arranged so that it lies in the flow direction in front of the filter element and at least partially covers the filter surface in the vertical projection on the filter surface of the filter element. The cover is at least temporarily in the housing opening or is located in the region of the housing opening. The cover closes the housing opening either alone or together with other parts, such as a center plate.

Die Abdeckung ist erfindungsgemƤƟ zu dem DunstabzugsgehƤuse beweglich gelagert. Insbesondere kann die Abdeckung relativ zu dem DunstabzugsgehƤuse und insbesondere der GehƤuseƶffnung eine translatorische Bewegung und/oder eine Schwenkbewegung ausfĆ¼hren. Vorzugsweise kann die Abdeckung in zumindest zwei unterschiedliche Positionen gebracht werden, wobei eine als Ruheposition und eine als Betriebsposition bezeichnet wird. In der Ruheposition befindet sich die Abdeckung in einem Zustand, in dem dieser an dem DunstabzugsgehƤuse anliegt oder in dieses in der GehƤuseƶffnung aufgenommen ist. In der Betriebsposition befindet sich die Abdeckung in einem Zustand, in dem zumindest ein Teil der Abdeckung von dem DunstabzugsgehƤuse entfernt liegt, das heiƟt nicht in dem DunstabzugsgehƤuse und nicht in der GehƤuseƶffnung liegt und dadurch Luft in das DunstabzugsgehƤuse eintreten kann. Befindet sich die Abdeckung in der Betriebsposition, kann die Dunstabzugsvorrichtung betrieben werden, das heiƟt verunreinigte Luft eingesaugt und gereinigt, insbesondere gefiltert werden.The cover according to the invention is movably mounted to the extractor housing. In particular, the cover can perform a translatory movement and / or a pivoting movement relative to the extractor housing and in particular the housing opening. Preferably, the cover can be brought into at least two different positions, one being referred to as a rest position and one as an operating position. In the rest position, the cover is in a state in which this rests on the extractor housing or is accommodated in this in the housing opening. In the operating position, the cover is in a state in which at least a portion of the cover is removed from the extractor housing, that is not in the extractor housing and not in the housing opening and thereby air can enter the extractor housing. The cover is in the operating position, the extractor device can be operated, that is sucked in polluted air and cleaned, in particular filtered.

Die Dunstabzugsvorrichtung umfasst eine BetƤtigungsvorrichtung. Mittels der BetƤtigungsvorrichtung kann die Abdeckung bewegt werden. Insbesondere kann die Abdeckung zumindest von einer Position in eine weitere Position gebracht werden. Besonders bevorzugt wird die Abdeckung durch die BetƤtigungsvorrichtung von einer Ruheposition in eine Betriebsposition oder von der Betriebsposition in die Ruheposition gebracht. Der Ɯbergang zwischen diesen beiden Positionen kann stufenlos erfolgen. Die Abdeckung kann dabei in jeder beliebigen Zwischenposition angehalten werden.The extractor device comprises an actuating device. By means of the actuator, the cover can be moved. In particular, the cover can be brought at least from one position to another position. Particularly preferably, the cover is brought by the actuator from a rest position to an operating position or from the operating position to the rest position. The transition between these two positions can be stepless. The cover can be stopped in any intermediate position.

Die BetƤtigungsvorrichtung weist mindestens einen Exzenter auf, der so angeordnet ist, dass dieser mit der Seite der Abdeckung, die dem Inneren des DunstabzugsgehƤuses zugewandt ist, in Kontakt gebracht werden kann. Als Exzenter wird im Sinne der Erfindung insbesondere ein Bauteil verstanden, das auf einer Welle gelagert werden kann und einen Umfang aufweist, der nicht rotationssymmetrisch ist. Der Exzenter kann daher auch als Kurvenrad bezeichnet werden. Vorzugsweise weist der Exzenter Ć¼ber einen Teil des Umfangs eine Parabelform auf. Alternativ kann aber auch ein Bauteil als Exzenter bezeichnet werden, das einen spiralfƶrmigen Umfang aufweist.The actuating device has at least one eccentric, which is arranged so that it can be brought into contact with the side of the cover, which faces the interior of the extractor housing. As an eccentric is understood in the context of the invention, in particular a component which can be mounted on a shaft and having a circumference which is not rotationally symmetrical. The eccentric can therefore also be referred to as a cam wheel. The eccentric preferably has a parabolic shape over a part of the circumference. Alternatively, however, a component may also be referred to as an eccentric having a spiral circumference.

Vorzugsweise steht der Umfang des Exzenters mit der Abdeckung in Kontakt oder kann mit dieser in Kontakt gebracht werden. Dies bedeutet, dass die Achse des Exzenters parallel zu der FlƤche der Abdeckung steht. Der Exzenter oder die Exzenter sind vorzugsweise an einer oder mehreren SeitenwƤnden des DunstabzugsgehƤuses befestigt, das heiƟt gelagert. Hierbei kann das oder kƶnnen die Exzenter unmittelbar mit der Abdeckung in Kontakt treten. Es liegt aber auch im Rahmen der Erfindung, dass der oder die Exzenter an der Oberseite des DunstabzugsgehƤuses angeordnet sind. Hierbei kƶnnen Zwischenelemente, die gegebenenfalls durch die Oberseite des DunstabzugsgehƤuses ragen, verwendet werden, Ć¼ber die der oder die Exzenter eine Kraft auf die Abdeckung(en) aufbringen kƶnnen. In diesem Fall ist der Kontakt zwischen der Abdeckung und dem Exzenter mittelbar. Durch den unmittelbaren oder mittelbaren Kontakt kann eine Kraft von dem Exzenter auf die Abdeckung aufgebracht werden.Preferably, the periphery of the eccentric is in contact with or in contact with the cover. This means that the axis of the eccentric is parallel to the surface of the cover. The eccentric or the eccentric are preferably attached to one or more side walls of the extractor housing, that is stored. In this case, the or the eccentrics can come into direct contact with the cover. However, it is also within the scope of the invention that the eccentric or the eccentric are arranged at the top of the extractor housing. In this case, intermediate elements, which optionally protrude through the top of the extractor housing, can be used, over which the eccentric or the one can apply a force on the cover (s). In this case, the contact between the cover and the eccentric is indirect. By direct or indirect contact, a force from the eccentric can be applied to the cover.

Die Seite an der der Exzenter an der Abdeckung anliegt, ist die Seite, die dem Inneren des DunstabzugsgehƤuses und damit vorzugsweise dem oder den Filterelementen zugewandt ist. Diese Seite ist bei einer Dunstabzugsvorrichtung, die einen DeckenlĆ¼fter oder eine Esse mit horizontal liegender GehƤuseƶffnung darstellt, die Oberseite der Abdeckung. Bei einer Dunstabzugsvorrichtung, die einen TischlĆ¼fter mit horizontal liegender GehƤuseƶffnung darstellt, ist diese Seite die Unterseite der Abdeckung. ErfindungsgemƤƟ kann der Exzenter unmittelbar an dieser Seite der Abdeckung anliegen. Es ist allerdings auch mƶglich, dass Zwischenelemente vorgesehen sind, die sich von dieser Seite aus nach oben, gegebenenfalls durch die Oberseite des DunstabzugsgehƤuses hindurch oder bei einem TischlĆ¼fter nach unten, gegebenenfalls durch die Unterseite des DunstabzugsgehƤuses erstrecken und dass der Exzenter auf dieses oder diese Zwischenelemente einwirkt.The side against which the eccentric bears against the cover is the side which faces the interior of the extractor housing and therefore preferably the filter element (s). This page is at a fume extraction device, which is a ceiling fan or a dining with horizontal housing opening, the top of the Cover. In a fume extractor, which is a table fan with horizontal housing opening, this side is the bottom of the cover. According to the invention, the eccentric can rest directly on this side of the cover. However, it is also possible that intermediate elements are provided, which extend from this side upwards, optionally through the top of the extractor housing through or at a table fan down, optionally through the bottom of the extractor housing and that the eccentric on this or these intermediate elements acts.

Indem eine BetƤtigungsvorrichtung verwendet wird, die mindestens einen Exzenter aufweist, der so angeordnet ist, dass dieser mit der Seite der Abdeckung, die dem Inneren des DunstabzugsgehƤuses zugewandt ist, in Kontakt gebracht werden kann, kann die Abdeckung auf einfache Weise bezĆ¼glich des DunstabzugsgehƤuses bewegt werden. Insbesondere kann die Abdeckung durch den Exzenter von dem DunstabzugsgehƤuse weggedrĆ¼ckt oder an dieses herangeholt werden. Hierdurch kann die Betriebsposition oder Ruheposition der Abdeckung eingestellt werden. Der Bewegungsweg der Abdeckung kann durch die Differenz zwischen dem grĆ¶ĆŸten und dem kleinsten Radius des Exzenters definiert sein. Daher kann durch geeignete Wahl der GrĆ¶ĆŸe des Exzenters der Bewegungsweg auf einfache Weise eingestellt werden. Zudem kann der Benutzer bei dieser BetƤtigungsvorrichtung auf einfache Weise geschĆ¼tzt werden. Insbesondere kann in der AusfĆ¼hrungsform, bei der die Bewegung der Abdeckung auf das DunstabzugsgehƤuse hin durch den Exzenter bewirkt wird, beispielsweise eine Rutschkupplung an der Lagerung des Exzenters verwendet werden. In der AusfĆ¼hrungsform, in der die Abdeckung durch den Exzenter von dem DunstabzugsgehƤuse weg bewegt wird, kann ein Einklemmschutz durch eine geeignete Wahl der Federkraft eines Federelementes, insbesondere einer RĆ¼ckholfelder gewƤhrleistet werden, durch die die Abdeckung auf das DunstabzugsgehƤuse zu bewegt wird.By using an actuator having at least one eccentric disposed to contact the side of the cover facing the interior of the extractor housing, the cover can be easily moved relative to the extractor housing , In particular, the cover can be pushed away by the eccentric from the extractor housing or brought to this. As a result, the operating position or rest position of the cover can be adjusted. The path of movement of the cover can be defined by the difference between the largest and the smallest radius of the eccentric. Therefore, by suitable choice of the size of the eccentric, the travel can be easily adjusted. In addition, the user can be protected in this actuator in a simple manner. In particular, in the embodiment in which the movement of the cover is effected on the extractor housing through the eccentric, for example, a slip clutch can be used on the bearing of the eccentric. In the embodiment in which the cover is moved away from the extractor housing by the eccentric, pinch protection can be ensured by a suitable choice of the spring force of a spring element, in particular a return field, by which the cover is moved towards the extractor housing.

Die vorliegende Erfindung wird im Folgenden fĆ¼r das bessere VerstƤndnis anhand einer Dunstabzugsvorrichtung mit einer BetƤtigungsvorrichtung beschrieben, die einen Exzenter aufweist. Vorzugsweise werden aber mehrere Befestigungsvorrichtungen oder eine Befestigungsvorrichtung mit mehreren Exzentern verwendet.The present invention will be described below for better understanding with reference to an extractor device with an actuator having an eccentric. Preferably, however, a plurality of fastening devices or a fastening device with a plurality of eccentrics are used.

GemƤƟ einer bevorzugten AusfĆ¼hrungsform weist die BetƤtigungsvorrichtung einen Antriebsmotor zum Antreiben des Exzenters auf. Der Antriebsmotor stellt vorzugsweise einen Elektromotor dar. Der Antriebsmotor kann beispielsweise Ć¼ber die Steuerung der Dunstabzugsvorrichtung angesteuert werden. So kann beim Anschalten des LĆ¼fters der Antriebsmotor so angesteuert werden, dass dieser den Exzenter so bewegt, dass die Abdeckung von der Ruheposition in die Betriebsposition oder umgekehrt gebracht wird.According to a preferred embodiment, the actuating device has a drive motor for driving the eccentric. The drive motor is preferably an electric motor. The drive motor can be controlled, for example, via the control of the extractor device. Thus, when the fan is switched on, the drive motor can be controlled such that it moves the eccentric so that the cover is brought from the rest position into the operating position or vice versa.

Besonders bevorzugt ist der Exzenter auf der Motorwelle des Antriebsmotors montiert. Hierdurch vereinfacht sich der gesamte Aufbau der Dunstabzugsvorrichtung. Zudem ist die Leistung, die durch den Antriebsmotor zu erbringen ist, nicht durch Ɯberwindung von HebelkrƤften gesteigert.Particularly preferably, the eccentric is mounted on the motor shaft of the drive motor. This simplifies the entire construction of the extractor device. In addition, the power to be provided by the drive motor is not increased by overcoming leverage.

Die BetƤtigungsvorrichtung umfasst vorzugsweise mindestens ein Federelement. Das Federelement ist so angeordnet, dass dessen Federkraft entgegengesetzt zu der Richtung einer von dem Exzenter auf die Abdeckung aufbringbaren Kraft gerichtet ist. Das Federelement stellt vorzugsweise eine RĆ¼ckholfeder dar, das heiƟt, dass das Federelement die Abdeckung in einer Ruheposition hƤlt. Durch Verwendung eines Federelementes kann zum einen die gezielte Einstellung der Ruheposition gewƤhrleistet werden und zum anderen kann ein Einklemmschutz fĆ¼r den Benutzer geschaffen werden. Eine Klemmkraft, die auf die Hand oder die Finger des Benutzers beim Einziehen der Abdeckung, das heiƟt bei der Bewegung aus der Betriebsposition in die Ruheposition, einwirkt, entspricht nƤmlich nur der Federkraft. Die Klemmkraft ist somit geringer als bei BetƤtigungsvorrichtungen, bei denen ein Einfahren der Abdeckung beispielsweise Ć¼ber ein Gewinde- oder Schneckengetriebe erfolgt.The actuating device preferably comprises at least one spring element. The spring element is arranged so that its spring force is directed opposite to the direction of a force applied by the eccentric on the cover force. The spring element preferably represents a return spring, that is to say that the spring element holds the cover in a rest position. By using a spring element, on the one hand the targeted adjustment of the rest position can be ensured and on the other hand, a pinch protection for the user can be created. A clamping force which acts on the hand or fingers of the user when pulling in the cover, that is to say when moving from the operating position into the rest position, corresponds in fact only to the spring force. The clamping force is thus lower than in actuators, in which a retraction of the cover, for example via a threaded or worm gear.

GemƤƟ einer AusfĆ¼hrungsform liegt der Exzenter in einer Betriebsposition der Abdeckung mit der Exzenternase an der Abdeckung an. Als Exzenternase wird hierbei die grĆ¶ĆŸte ExzentrizitƤt, das heiƟt der Bereich, an dem der Exzenter den grĆ¶ĆŸten Radius aufweist, verstanden. Indem der Exzenter in der Betriebsposition der Abdeckung, das heiƟt in der ausgefahrenen Position mit der Exzenternase an der Abdeckung anliegt, kann der Exzenter bei den ƜbergƤngen zwischen Ruheposition und Betriebsposition und zwischen Betriebsposition und Ruheposition vollstƤndig, das heiƟt um 360Ā° gedreht werden. Dies bedeutet, dass die Antriebsrichtung fĆ¼r den Exzenter nicht geƤndert werden muss.According to one embodiment, the eccentric is in an operating position of the cover with the eccentric nose on the cover. As an eccentric nose in this case the largest eccentricity, that is, the area where the eccentric has the largest radius understood. By the eccentric rests in the operating position of the cover, that is in the extended position with the eccentric nose on the cover, the eccentric at the transitions between rest position and operating position and between operating position and rest position completely, that can be rotated by 360 Ā°. This means that the drive direction for the eccentric need not be changed.

Allerdings liegt es auch im Rahmen der Erfindung, dass der Exzenter in der Ruheposition nicht oder an einem Teil des Umfangs mit geringstem Radius anliegt und in der Betriebsposition mit einem Teil des Umfangs, der zwischen dem geringsten und dem grĆ¶ĆŸten Radius liegt an der Abdeckung anliegt. Bei dieser AusfĆ¼hrungsform wird fĆ¼r das Einfahren und Ausfahren der Abdeckung der Exzenter jeweils in einer anderen Richtung gedreht.However, it is also within the scope of the invention that the eccentric rests in the rest position or not on a part of the circumference with the smallest radius and in the operating position with a part of the circumference, which is between the smallest and the largest radius is applied to the cover. In this embodiment, for the retraction and extension of the cover of the eccentric is rotated in each case in a different direction.

GemƤƟ einer AusfĆ¼hrungsform stellt die Abdeckung eine Prallplatte dar. Als Prallplatte wird eine Platte bezeichnet, die in der Betriebsposition mit dem DunstabzugsgehƤuse einen umlaufenden Spalt bildet, Ć¼ber den Luft in das DunstabzugsgehƤuse eintreten kann. Die Prallplatte deckt dabei zumindest einen Teil der GehƤuseƶffnung des DunstabzugsgehƤuses und insbesondere des oder der in dem DunstabzugsgehƤuse angeordneten Filterelemente in Strƶmungsrichtung ab. Insbesondere deckt die Prallplatte zumindest einen Teil der FilterflƤche, das heiƟt der Anstrƶmseite des oder der Filterelemente ab. In der Ruheposition verschlieƟt die Prallplatte vorzugsweise die gesamte GehƤuseƶffnung des DunstabzugsgehƤuses.According to one embodiment, the cover is a baffle plate. The baffle plate is a plate which, in the operating position with the extractor housing, forms a circumferential gap through which air can enter into the extractor housing. The baffle plate covers at least part of the housing opening of the extractor housing and in particular of the one or more arranged in the extractor housing filter elements in the flow direction. In particular, the baffle plate covers at least part of the filter surface, that is to say the upstream side of the filter element (s). In the rest position, the baffle preferably closes the entire housing opening of the extractor housing.

In der AusfĆ¼hrungsform, bei der die Abdeckung eine Prallplatte darstellt, wird die Abdeckung translatorisch zu dem DunstabzugsgehƤuse bewegt, das heiƟt aus diesem ausgefahren oder eingefahren. Hierdurch wird gewƤhrleistet, dass der Randspalt Ć¼ber den Umfang der Prallplatte gleichmƤƟig ist und dadurch ein gleichmƤƟiges Absaugen von Luft gewƤhrleistet werden kann. Die translatorische Bewegung kann bei der erfindungsgemƤƟen Dunstabzugsvorrichtung durch eine oder mehrere FĆ¼hrungselemente gefĆ¼hrt werden. Die eigentliche Bewegung erfolgt hingegen durch den Exzenter. Bei einer Prallplatte kann ein einzelner Exzenter verwendet werden, wenn die durch diesen verursachte Kraft auf die Abdeckung durch FĆ¼hrungselemente verteilt wird beziehungsweise ein Verkanten der Abdeckung auf andere Weise verhindert wird. Vorzugsweise werden bei einer Prallplatte aber mehrere Exzenter in der BetƤtigungsvorrichtung verwendet. Hierdurch kann zum einen eine gleichmƤƟige Kraftaufbringung auf die Abdeckung gewƤhrleistet werden. Zum anderen kƶnnen die Anforderungen an Antriebsmotoren, die die Exzenter antreiben kƶnnen, gesenkt werden.In the embodiment in which the cover is a baffle plate, the cover is moved in translation to the extractor housing, that is, extended from this or retracted. This ensures that the edge gap is uniform over the circumference of the baffle plate and thus a uniform suction of air can be ensured. The translational movement can be performed in the extractor device according to the invention by one or more guide elements. The actual movement, however, is done by the eccentric. In a baffle plate, a single eccentric can be used when the force caused by this is distributed to the cover by guide elements or tilting of the cover is prevented in other ways. Preferably, however, a plurality of eccentrics are used in the actuator in a baffle plate. In this way, on the one hand a uniform force application can be ensured on the cover. On the other hand, the requirements for drive motors that can drive the eccentric can be lowered.

In der AusfĆ¼hrungsform, in der die Abdeckung eine Prallplatte darstellt, ist die Abdeckung vorzugsweise zur vertikalen Bewegung in dem DunstabzugsgehƤuse gelagert. Hierzu kƶnnen FĆ¼hrungselemente, wie beispielsweise Schienen oder GestƤnge vorgesehen sein. Zudem ist vorzugsweise mindestens ein Federelement vorgesehen, durch das die Abdeckung in eine entgegen der durch den Exzenter bewirkten Bewegungsrichtung gerichteten Bewegungsrichtung bewegt werden kann.In the embodiment in which the cover is a baffle plate, the cover is preferably mounted for vertical movement in the extractor housing. For this Guide elements, such as rails or rods may be provided. In addition, at least one spring element is preferably provided, by means of which the cover can be moved in a direction of movement directed counter to the direction of movement caused by the eccentric.

GemƤƟ einer weiteren AusfĆ¼hrungsform stellt die Abdeckung eine Klappe dar, die Ć¼ber ein Gelenk verschwenkbar an dem DunstabzugsgehƤuse gelagert ist. Durch die Verwendung einer BetƤtigungsvorrichtung, die mindestens einen Exzenter umfasst, kann bei dieser AusfĆ¼hrungsform die Klappe durch den Exzenter aus einer Ruheposition in eine Betriebsposition oder von einer Betriebsposition in eine Ruheposition gebracht werden. Als Betriebsposition der Klappe wird die Position bezeichnet, in der diese gegenĆ¼ber dem DunstabzugsgehƤuse nach unten oder bei einem TischlĆ¼fter nach oben verschwenkt ist. Als Ruheposition wird die Position bezeichnet, in der die Klappe in der GehƤuseƶffnung der DunstabzugsgehƤuse liegt oder an dieser anliegt.According to a further embodiment, the cover is a flap which is pivotally mounted on the extractor housing via a hinge. By using an actuator comprising at least one eccentric, in this embodiment, the flap can be brought by the eccentric from a rest position to an operating position or from an operating position to a rest position. The operating position of the flap is the position in which it is pivoted upwards relative to the extractor housing or upwards in the case of a table ventilator. As a rest position, the position is referred to, in which the flap lies in the housing opening of the extractor housing or rests against this.

Der Exzenter kann bei einer Klappe als Abdeckung auf den Bereich der Klappe einwirken, der in dem Betriebszustand gegenĆ¼ber der GehƤuseƶffnung verschwenkt werden soll. Vorzugsweise wirkt der Exzenter aber auf den Bereich der Klappe ein, der beim Verschwenken der Klappe in der GehƤuseƶffnung verbleibt oder zu dieser nach oben oder nach unten geschwenkt wird.The eccentric can act as a cover on a flap on the region of the flap which is to be pivoted in the operating state relative to the housing opening. Preferably, however, the eccentric acts on the region of the flap which, when the flap is pivoted, remains in the housing opening or is pivoted upwardly or downwardly toward the latter.

GemƤƟ einer bevorzugten AusfĆ¼hrungsform ist die Klappe Ć¼ber ein Gelenk mit dem DunstabzugsgehƤuse verbunden, das durch eine Verbindungsstange und den Exzenter gebildet wird. Die Verbindungsstange ist hierbei an der Klappe oder dem DunstabzugsgehƤuse vorzugsweise so befestigt, dass sich ein Ende der Verbindungsstange in einem Langloch bewegen kann. An diesem Ende kann die Stange beispielsweise eine VergrĆ¶ĆŸerung aufweisen, die die Verbindungsstange in dem Langloch hƤlt.According to a preferred embodiment, the flap is connected via a hinge with the extractor housing, which is formed by a connecting rod and the eccentric. The connecting rod is in this case preferably attached to the flap or the extractor housing so that one end of the connecting rod can move in a slot. At this end, the rod may for example have an enlargement, which holds the connecting rod in the slot.

Vorzugsweise ist die Klappe in der NƤhe zu einer Kante der Abdeckung an dem DunstabzugsgehƤuse gelagert. Indem die Klappe nicht an der Kante selber gelagert ist, kann der Exzenter auf den Bereich zwischen der Kante und der Lagerstelle einwirken. Der oder die Exzenter sind bei dieser AusfĆ¼hrungsform so angeordnet, dass diese an der Kante, in deren NƤhe die Klappe gelagert ist, zumindest zeitweise an der Oberseite der Klappe anliegt. Bei dieser AusfĆ¼hrungsform ist es besonders bevorzugt, dass der oder die Exzenter in jeder Position der Klappe mit dieser in Kontakt steht beziehungsweise stehen. Vorzugsweise wird bei dieser AusfĆ¼hrungsform die Klappe durch die Exzenternase in der Ruheposition, das heiƟt der geschlossenen Position gehalten. In der Betriebsposition, in der die Klappe zu dem DunstabzugsgehƤuse verschwenkt ist, liegt der Exzenter mit einem Bereich des Umfangs an der Oberseite der Klappe, in dem dieser einen geringeren Radius als an der Exzenternase aufweist. Bei dieser AusfĆ¼hrungsform ist daher ein separates Federelement, durch das die Abdeckung von einer Betriebsposition in die Ruheposition gebracht werden kann, nicht erforderlich. Hierdurch wird der Aufbau der Dunstabzugsvorrichtung weiter vereinfacht.Preferably, the flap is mounted in the vicinity of an edge of the cover to the extractor housing. By not supporting the flap on the edge itself, the eccentric can act on the area between the edge and the bearing point. The eccentric or eccentric are arranged in this embodiment, that at the edge near which the flap is mounted, at least temporarily at the top of the Flap is applied. In this embodiment, it is particularly preferred that the eccentric or the eccentric in each position of the flap in contact with it or stand. Preferably, in this embodiment, the flap is held by the eccentric nose in the rest position, that is the closed position. In the operating position in which the flap is pivoted to the extractor housing, the eccentric is located with a portion of the circumference at the top of the flap, in which it has a smaller radius than at the eccentric nose. In this embodiment, therefore, a separate spring element, by which the cover can be brought from an operating position to the rest position, is not required. As a result, the construction of the extractor device is further simplified.

Ɯber den Abstand, der in der Betriebsposition der Klappe zwischen der Kante der Klappe, die der Kante gegenĆ¼berliegt, an der der Exzenter angreift, und dem DunstabzugsgehƤuse gebildet ist, kann Luft in das DunstabzugsgehƤuse eingesaugt werden.About the distance that is formed in the operating position of the flap between the edge of the flap, which is opposite to the edge on which the eccentric engages, and the extractor housing is formed, air can be sucked into the extractor housing.

GemƤƟ einer AusfĆ¼hrungsform ist die mindestens eine Klappe an einer Mittelplatte des DunstabzugsgehƤuses angeordnet, die fest mit dem DunstabzugsgehƤuse verbunden ist.According to one embodiment, the at least one flap is arranged on a center plate of the extractor housing, which is firmly connected to the extractor housing.

Bei dieser AusfĆ¼hrungsform kann eine oder kƶnnen mehrere Klappen an der Mittelplatte angeordnet sein. Beispielsweise kann an zwei gegenĆ¼berliegenden Kanten der Mittelplatte jeweils eine Klappe anliegen. In der Ruheposition der Klappen liegen die Klappen mit der Mittelplatte des DunstabzugsgehƤuses in einer Ebene und verschlieƟen somit gemeinsam die GehƤuseƶffnung des DunstabzugsgehƤuses. In der Mittelplatte kann beispielsweise eine Beleuchtungsvorrichtung der Dunstabzugsvorrichtung angeordnet sein.In this embodiment, one or more flaps may be disposed on the center plate. For example, in each case a flap can rest on two opposite edges of the center plate. In the rest position of the flaps, the flaps lie with the center plate of the extractor housing in a plane and thus close together the housing opening of the extractor housing. In the center plate, for example, a lighting device of the extractor device can be arranged.

GemƤƟ einer AusfĆ¼hrungsform weist die Klappe an einer Kante eine Einbuchtung auf, Ć¼ber die die Klappe sich in der Ruheposition auf einem Vorsprung des DunstabzugsgehƤuses oder einer in der GehƤuseƶffnung des DunstabzugsgehƤuses fest angebrachten Mittelplatte abstĆ¼tzen kann.According to one embodiment, the flap has an indentation on an edge over which the flap can be supported in the rest position on a projection of the extractor housing or a central plate fixedly mounted in the housing opening of the extractor housing.

GemƤƟ einer AusfĆ¼hrungsform sind in der BetƤtigungsvorrichtung mehrere Exzenter vorgesehen, die zumindest teilweise Ć¼ber einen gemeinsamen Antriebsmotor angetrieben werden. Beispielsweise kƶnnen zwei oder mehr Exzenter Ć¼ber eine Welle, die in der Achse der Exzenterwelle liegt, starr miteinander verbunden sein. Ein Antriebsmotor kann dann an der Verbindungsstange angreifen und dadurch die Exzenter gleichzeitig antreiben.According to one embodiment, a plurality of eccentrics are provided in the actuating device, which are at least partially driven by a common drive motor become. For example, two or more eccentrics may be rigidly connected to each other via a shaft located in the axis of the eccentric shaft. A drive motor can then engage the connecting rod and thereby drive the eccentric simultaneously.

GemƤƟ einer AusfĆ¼hrungsform stellt die Dunstabzugsvorrichtung einen DeckenlĆ¼fter dar. Als DeckenlĆ¼fter wird insbesondere eine Dunstabzugsvorrichtung bezeichnet, die an einer Raumdecke befestigt oder in dieser montiert ist. Bei DeckenlĆ¼ftern liegt die GehƤuseƶffnung des DunstabzugsgehƤuses, die von der oder den Abdeckungen abgedeckt werden soll, in der Horizontalen. Hierdurch kann zumindest teilweise die Schwerkraft, die auf die Abdeckungen wirkt, beim Ausfahren oder Verschwenken der Abdeckungen genutzt werden.According to one embodiment, the extractor device is a ceiling ventilator. The ceiling ventilator is in particular a vapor extractor device which is fastened to or mounted in a room ceiling. In ceiling fans, the housing opening of the extractor housing, which is to be covered by the cover or covers, lies in the horizontal. As a result, the force of gravity, which acts on the covers, at least partially be used when extending or pivoting the covers.

Alternativ kann die Dunstabzugsvorrichtung einen TischlĆ¼fter darstellen, bei dem zumindest teilweise die Schwerkraft, die auf die Abdeckungen wirkt, beim Einfahren oder Einschwenken der Abdeckungen genutzt wird.Alternatively, the extractor device may be a table ventilator in which the force of gravity acting on the covers is at least partially utilized when retracting or swiveling the covers.

Die Erfindung wird im Folgenden erneut anhand der beiliegenden Figuren beschrieben. Es zeigen:

Figur 1:
eine perspektivische Unteransicht einer AusfĆ¼hrungsform der Dunstabzugsvorrichtung mit einer Abdeckung in der Betriebsposition;
Figur 2:
eine schematische Schnittdarstellung der AusfĆ¼hrungsform nach Figur 1 im Bereich der BetƤtigungsvorrichtung;
Figur 3:
eine perspektivische Unteransicht einer weiteren AusfĆ¼hrungsform der Dunstabzugsvorrichtung mit zwei Abdeckungen in der Betriebsposition;
Figur 4:
eine schematische Schnittdarstellung der AusfĆ¼hrungsform nach Figur 3 im Bereich der BetƤtigungsvorrichtung mit der Abdeckung in der Betriebsposition; und
Figur 5:
eine schematische Schnittdarstellung der AusfĆ¼hrungsform nach Figur 3 im Bereich der BetƤtigungsvorrichtung mit der Abdeckung in der Ruheposition.
The invention will be described again below with reference to the accompanying figures. Show it:
FIG. 1:
a bottom perspective view of an embodiment of the extractor device with a cover in the operating position;
FIG. 2:
a schematic sectional view of the embodiment according to FIG. 1 in the area of the actuator;
FIG. 3:
a bottom perspective view of another embodiment of the extractor device with two covers in the operating position;
FIG. 4:
a schematic sectional view of the embodiment according to FIG. 3 in the region of the actuator with the cover in the operating position; and
FIG. 5:
a schematic sectional view of the embodiment according to FIG. 3 in the region of the actuator with the cover in the rest position.

In der Figur 1 ist eine AusfĆ¼hrungsform der erfindungsgemƤƟen Dunstabzugsvorrichtung 1 gezeigt. In der dargestellten AusfĆ¼hrungsform stellt die Dunstabzugsvorrichtung 1 einen DeckenlĆ¼fter dar. Die Dunstabzugsvorrichtung 1 umfasst ein DunstabzugsgehƤuse 10 sowie eine Abdeckung 17, die in der dargestellten AusfĆ¼hrungsform eine Prallplatte 12 darstellt. In der Figur 1 weist die Dunstabzugsvorrichtung 1 zudem einen Rahmen 11 auf, der auch als Wrasenschirm bezeichnet werden kann. In dem DunstabzugsgehƤuse 10 liegt in der Unterseite eine GehƤuseƶffnung 100, Ć¼ber die Luft in das DunstabzugsgehƤuse 10 eingesaugt werden soll. Im Inneren des DunstabzugsgehƤuses 10 ist mindestens ein Filterelement (nicht gezeigt) angeordnet. Zudem weist die Dunstabzugsvorrichtung 1 einen LĆ¼fter (nicht gezeigt) auf.In the FIG. 1 an embodiment of the extractor device 1 according to the invention is shown. In the illustrated embodiment, the extractor device 1 is a ceiling fan. The extractor device 1 comprises a fume hood housing 10 and a cover 17, which is a baffle plate 12 in the illustrated embodiment. In the FIG. 1 the extractor device 1 also has a frame 11, which can also be referred to as Wrasenschirm. In the extractor housing 10 is located in the bottom of a housing opening 100, is to be sucked through the air in the extractor housing 10. Inside the extractor housing 10 at least one filter element (not shown) is arranged. In addition, the extractor device 1 a fan (not shown).

Die Prallplatte 12 ist in der Betriebsposition in Strƶmungsrichtung vor der GehƤuseƶffnung 100 angeordnet. In der dargestellten AusfĆ¼hrungsform liegt die Prallplatte 12 daher unter der GehƤuseƶffnung 100. Die Prallplatte 12 weist eine GrĆ¶ĆŸe auf, die der GrĆ¶ĆŸe der GehƤuseƶffnung 100 zumindest entspricht. Zwischen der Unterseite des DunstabzugsgehƤuses 10 und der Oberseite der Prallplatte 12 ist ein Randspalt 13 gebildet, Ć¼ber den Luft in das DunstabzugsgehƤuse 10 eintreten kann. Die Abdeckung 17, die als Prallplatte 12 ausgebildet ist, ist an dem DunstabzugsgehƤuse 10 beweglich befestigt. Die Bewegung der Prallplatte 12 erfolgt mittels einer BetƤtigungsvorrichtung 2, die in der Figur 2 genauer gezeigt ist.The baffle plate 12 is arranged in the operating position in the flow direction in front of the housing opening 100. In the illustrated embodiment, the baffle plate 12 is therefore below the housing opening 100. The baffle plate 12 has a size that corresponds to the size of the housing opening 100 at least. Between the bottom of the extractor housing 10 and the top of the baffle plate 12, an edge gap 13 is formed, can enter through the air into the extractor housing 10. The cover 17, which is formed as a baffle plate 12, is movably attached to the extractor housing 10. The movement of the baffle plate 12 by means of an actuator 2, in the FIG. 2 is shown in more detail.

Wie sich aus Figur 2 ergibt, weist die BetƤtigungsvorrichtung 2 einen Exzenter 21 auf. Der Exzenter 21 wird von einem Antriebsmotor 20 angetrieben, das heiƟt kann Ć¼ber diesen bewegt werden. In der dargestellten AusfĆ¼hrungsform ist der Exzenter 21 auf der Motorwelle 200 des Antriebsmotors 20 montiert. Der Exzenter 21 und der Antriebsmotor 20 sind an einer Seitenwand des DunstabzugsgehƤuses 10 befestigt. Zudem ist an der Oberseite des DunstabzugsgehƤuses 10 ein Federelement 22 mit dessen oberen Ende befestigt. Das untere Ende des Federelementes 22 ist mit der Oberseite der Prallplatte 12 verbunden, beispielsweise in diese eingebracht. In der Figur 2 ist die Betriebsposition der Prallplatte 12, das heiƟt die aus dem DunstabzugsgehƤuse 10 nach unten ausgefahrene Position gezeigt. In dieser Betriebsposition ist der Exzenter 21 so gedreht, dass die Exzenternase 210 des Exzenters 21 an der Oberseite der Prallplatte 12 anliegt. Hierdurch wird die Prallplatte 12 gegen die Kraft, die durch das Federelement 22 auf die Prallplatte 12 wirkt und diese nach oben zieht, nach unten gedrĆ¼ckt. Wird der Exzenter 21 aus dieser Stellung im einen gewissen Winkelbetrag gedreht, so lƤuft der Umfang des Exzenters 21 auf der Oberseite der Prallplatte 12 entlang. Da der Radius des Exzenters 21 abnimmt, kann die Prallplatte 12 durch die Federkraft des Federelementes 22 nach oben gezogen werden. In einer Ruheposition liegt die dargestellte Prallplatte 12 in der GehƤuseƶffnung 100 des DunstabzugsgehƤuses 10. In dieser Ruheposition kann die Prallplatte 12 an einem Teil des Umfangs des Exzenters 21 anliegen, der einen geringen Radius als die Exzenternase 210 aufweist. Hierdurch kann die Prallplatte 12, die durch das Federelement 22 nach oben gezogen wird, davon abgehalten werden weiter in die GehƤuseƶffnung 100 einzudringen. Alternativ kann das Federelement 22 aber auch so ausgelegt sein, dass dieses im entspannten Zustand eine LƤnge aufweist, die dem Abstand zwischen der in der GehƤuseƶffnung 100 liegenden Prallplatte 12 und der Oberseite des DunstabzugsgehƤuses 10 entspricht. Bei dieser AusfĆ¼hrungsform kann der Exzenter 21 in einer solchen Hƶhe in dem DunstabzugsgehƤuse 10 angeordnet sein, dass der Bereich mit geringem Radius zu der Oberseite der Prallplatte 12 in der Ruheposition beabstandet ist, da aufgrund des Fehlens der Federkraft keine gegenwirkende Kraft von dem Exzenter 21 mehr aufgebracht werden muss.As it turned out FIG. 2 shows, the actuator 2 has an eccentric 21. The eccentric 21 is driven by a drive motor 20, that is, can be moved over this. In the illustrated embodiment, the eccentric 21 is mounted on the motor shaft 200 of the drive motor 20. The eccentric 21 and the drive motor 20 are attached to a side wall of the extractor housing 10. In addition, a spring element 22 is attached to the upper end of the extractor housing 10 at the top. The lower end of the spring element 22 is connected to the top of the baffle plate 12, for example, introduced into this. In the FIG. 2 is the operating position of the baffle plate 12, that is shown from the extractor housing 10 downwardly extended position. In this operating position, the eccentric 21 is rotated so that the Exzenternase 210 of the eccentric 21 rests against the top of the baffle plate 12. As a result, the baffle plate 12 is pressed against the force acting through the spring element 22 on the baffle plate 12 and pulls it upwards, down. If the eccentric 21 is rotated from this position in a certain angular amount, the circumference of the eccentric 21 runs along the upper side of the baffle plate 12. Since the radius of the eccentric 21 decreases, the baffle plate 12 can be pulled by the spring force of the spring element 22 upwards. In a rest position, the baffle plate 12 shown is located in the housing opening 100 of the extractor housing 10. In this rest position, the baffle plate 12 may rest against a portion of the circumference of the eccentric 21, which has a small radius than the eccentric nose 210. As a result, the baffle plate 12, which is pulled upwards by the spring element 22, can be prevented from penetrating further into the housing opening 100. Alternatively, however, the spring element 22 can also be designed so that it has a length in the relaxed state, which corresponds to the distance between the baffle plate 12 located in the housing opening 100 and the top of the extractor housing 10. In this embodiment, the eccentric 21 may be disposed in the extractor housing 10 at a height such that the region of small radius is spaced from the top of the baffle 12 in the rest position because there is no counteracting force from the eccentric 21 due to the lack of spring force must be applied.

GemƤƟ einer weiteren nicht gezeigten AusfĆ¼hrungsform kƶnnen auch AnschlƤge an dem DunstabzugsgehƤuse 10 vorgesehen sein, die die Prallplatte 12 gegen die Federkraft des Federelementes 22 vor einem weiteren Eindringen Ć¼ber die Ruheposition hinaus in das DunstabzugsgehƤuse 10 abhalten.According to a further embodiment, not shown, stops on the extractor housing 10 may be provided which prevent the baffle plate 12 against the spring force of the spring element 22 from further penetration beyond the rest position in the extractor housing 10.

In den Figuren 3 bis 5 ist eine zweite AusfĆ¼hrungsform der erfindungsgemƤƟen Dunstabzugsvorrichtung 1 gezeigt. Bei dieser AusfĆ¼hrungsform weist die Dunstabzugsvorrichtung 1 ein DunstabzugsgehƤuse 10 auf, von dem in Figur 3 nur ein Rahmen 11 zu sehen ist. Das DunstabzugsgehƤuse 10 ist in einer Raumwand integriert. Der Rahmen 11 kann auch durch die Unterseite des DunstabzugsgehƤuses 10 gebildet sein. Die Dunstabzugsvorrichtung 1 nach der zweiten AusfĆ¼hrungsform kann allerdings auch wie in der Figur 1 gezeigt unter der Raumdecke montiert sein und einen grĆ¶ĆŸeren Rahmen 11 aufweisen, der als Wrasenschirm bezeichnet werden kann.In the FIGS. 3 to 5 a second embodiment of the extractor device 1 according to the invention is shown. In this embodiment, the extractor device 1, a fume hood housing 10, of which in FIG. 3 only one frame 11 can be seen. The extractor housing 10 is integrated in a room wall. The frame 11 may also be formed by the underside of the extractor housing 10. However, the extractor device 1 according to the second embodiment can also as in the FIG. 1 be shown mounted under the ceiling and have a larger frame 11, which can be referred to as Wrasenschirm.

In der zweiten AusfĆ¼hrungsform sind an der GehƤuseƶffnung 100 zwei Abdeckungen 17, die als Klappen 15 ausgebildet sind, vorgesehen. In der dargestellten AusfĆ¼hrungsform ist zusƤtzlich zu den zwei Klappen 15 eine Mittelplatte 14 in die GehƤuseƶffnung eingebracht. Die Mittelplatte 14 ist fest mit dem DunstabzugsgehƤuse 10 verbunden. An zwei gegenĆ¼berliegenden Kanten der Mittelplatte 14 ist jeweils eine Klappe 15 angeordnet. Die Klappen 15 sind in der Figur 3 in der Betriebsposition gezeigt. In dieser Position sind die Klappen 15 gegenĆ¼ber der FlƤche der Mittelplatte 14 und damit gegenĆ¼ber der FlƤche der GehƤuseƶffnung 100 nach unten verschwenkt. In der dargestellten AusfĆ¼hrungsform wird hierbei jeweils die Kante der Klappe nach unten verschwenkt, die der Mittelplatte 14 abgewandt ist. Zwischen den Klappen 15 und der GehƤuseƶffnung 100 wird somit ein Absaugspalt 16 gebildet.In the second embodiment, two covers 17, which are formed as flaps 15, are provided on the housing opening 100. In the illustrated embodiment, in addition to the two flaps 15, a center plate 14 is inserted into the housing opening. The middle plate 14 is firmly connected to the extractor housing 10. At two opposite edges of the central plate 14, a flap 15 is arranged in each case. The flaps 15 are in the FIG. 3 shown in the operating position. In this position, the flaps 15 are pivoted relative to the surface of the center plate 14 and thus with respect to the surface of the housing opening 100 down. In the illustrated embodiment, in this case in each case the edge of the flap is pivoted downward, which faces away from the center plate 14. Thus, a suction gap 16 is formed between the flaps 15 and the housing opening 100.

In den Figuren 4 und 5 ist eine AusfĆ¼hrungsform der BetƤtigungsvorrichtung 2 fĆ¼r die AusfĆ¼hrungsform der Dunstabzugsvorrichtung 1, bei der die Abdeckungen 17 Klappen 15 darstellen, insbesondere fĆ¼r die AusfĆ¼hrungsform nach Figur 3 gezeigt.In the FIGS. 4 and 5 is an embodiment of the actuator 2 for the embodiment of the extractor device 1, in which the covers 17 show flaps 15, in particular for the embodiment according to FIG. 3 shown.

Die BetƤtigungsvorrichtung 2 umfasst einen Exzenter 21 sowie eine Verbindungsstange 23. Durch die Verbindungsstange 23 und den Exzenter 21 wird ein Gelenk gebildet. Die Verbindungsstange 23 ist an der Oberseite des DunstabzugsgehƤuses 10 mit dem oberen Ende der Verbindungsstange 23 befestigt. Das untere Ende der Verbindungsstange 23 ist in einem Langloch 24 in der Oberseite der Klappe 15 aufgenommen. An dem unteren Ende ist vorzugsweise ein Verdickung oder Erweiterung vorgesehen, durch die das untere Ende in dem Langloch 24 gehalten wird. Die Verbindungsstange 23 ist in der NƤhe der Kante der Klappe 15 mit dieser verbunden, mit der die Klappe 15 an der Mittelplatte 14 anliegt. In der dargestellten AusfĆ¼hrungsform weist diese Kante eine Einbuchtung 150 auf, die mit einem abgerundeten Vorsprung 140 an der Mittelplatte 14 eingreifen kann. Es liegt aber auch im Rahmen der Erfindung die Kante der Klappe 15, die an der Mittelplatte 14 anliegt, ohne Einbuchtung auszugestalten und die Mittelplatte 14 ohne Vorsprung auszugestalten.The actuator 2 comprises an eccentric 21 and a connecting rod 23. By the connecting rod 23 and the eccentric 21, a joint is formed. The connecting rod 23 is fixed to the top of the extractor housing 10 with the upper end of the connecting rod 23. The lower end of the connecting rod 23 is received in a slot 24 in the top of the flap 15. At the lower end, a thickening or enlargement is preferably provided, by which the lower end is held in the slot 24. The connecting rod 23 is connected in the vicinity of the edge of the flap 15 with this, with which the flap 15 rests against the central plate 14. In the illustrated embodiment, this edge has a recess 150, which can engage with a rounded projection 140 on the center plate 14. However, it is also within the scope of the invention, the edge of the flap 15 which rests against the central plate 14, without indentation and design the center plate 14 without a projection.

Der Exzenter 21 ist an der Seitenwand des DunstabzugsgehƤuses 10 angeordnet. Der Exzenter 21 ist an einer Stelle angeordnet, die Ć¼ber der Kante der Klappe 10 liegt, die an der Mittelplatte 14 anliegt. Der Exzenter 21 ist in einer Hƶhe angebracht, in der die Exzenternase 210 wenn diese nach unten weist, auf der Oberseite der Klappe 15 in der Ruheposition anliegt. Diese Ruheposition, in der die Klappe 15 in der Ebene der Mittelplatte 14 liegt, ist in Figur 5 gezeigt. Die Exzenternase 210 drĆ¼ckt die eine Seite der Klappe 15 nach unten und gegen den Vorsprung 140 an der Mittelplatte 14. Wird der Exzenter 21 aus dieser Winkelposition herausgedreht, so kann die Klappe 15 aufgrund ihres Eigengewichts mit dem Ende, das der Mittelplatte 14 abgewandt ist, nach unten verschwenken. Diese Bewegung wird durch die Verbindungsstange 23, die in dem Langloch entlang gleitet und durch den Umfang des Exzenters 21 in einem Bereich, der einen geringeren Radius als die Exzenternase 210 aufweist, gefĆ¼hrt. Sobald die Verbindungsstange 23 das Ende des Langloches 24 erreicht hat, das der Kante der Klappe 15 zugewandt ist, die an der Mittelplatte 14 anliegt, ist ein weiteres Verschwenken der Klappe 15 nicht mƶglich. Zudem wird die Klappe 15 in dieser Position durch den Exzenter 21 gehalten. Zum SchlieƟen der Klappe 15 wird der Exzenter dann in die entgegengesetzte Richtung so weit gedreht, bis die Exzenternase 210 wieder nach unten weist.The eccentric 21 is arranged on the side wall of the extractor housing 10. The eccentric 21 is arranged at a position which lies over the edge of the flap 10, which bears against the center plate 14. The eccentric 21 is mounted at a height in which the eccentric nose 210 when facing down, on the top of the flap 15 in the Rest position is present. This rest position, in which the flap 15 lies in the plane of the middle plate 14, is in FIG. 5 shown. The eccentric cam 210 presses the one side of the flap 15 downwards and against the projection 140 on the middle plate 14. If the eccentric 21 is rotated out of this angular position, the flap 15 can, due to its own weight, be at the end facing away from the middle plate 14, swivel down. This movement is guided by the connecting rod 23, which slides in the slot along and through the circumference of the eccentric 21 in a region having a smaller radius than the eccentric cam 210. Once the connecting rod 23 has reached the end of the elongated hole 24, which faces the edge of the flap 15, which rests against the central plate 14, a further pivoting of the flap 15 is not possible. In addition, the flap 15 is held in this position by the eccentric 21. To close the flap 15 of the eccentric is then rotated in the opposite direction until the eccentric nose 210 again points down.

Die Erfindung wurde im Wesentlichen anhand von AusfĆ¼hrungsformen beschrieben, bei denen die Dunstabzugsvorrichtung einen DeckenlĆ¼fter darstellt. Bei einer Dunstabzugsvorrichtung, die einen TischlĆ¼fter, der auch als MuldenlĆ¼fter bezeichnet werden kann, darstellt, kƶnnen die in den Figuren gezeigten und oben beschriebenen AusfĆ¼hrungsformen der BetƤtigungsvorrichtungen entsprechend verwendet werden. Die Bewegungsrichtung der Abdeckungen ist bei diesen AusfĆ¼hrungsformen dann entgegengesetzt zu den beschriebenen. Somit wird bei einem TischlĆ¼fter die Abdeckung, die eine Prallplatte darstellt, aus einer Ruheposition in eine Betriebsposition nach oben gedrĆ¼ckt und bei einer Abdeckung, die eine Klappe darstellt, aus einer Ruheposition in eine Betriebsposition nach oben verschwenkt, wobei diese Bewegung jeweils durch einen Exzenter erfolgen kann. Die Komponenten der BetƤtigungsvorrichtung sind bei einem TischlĆ¼fter unterhalb der Abdeckung vorgesehen.The invention has been described essentially with reference to embodiments in which the extractor device is a ceiling fan. In an extractor device which is a table ventilator, which may also be referred to as a tray ventilator, the embodiments of the actuators shown in the figures and described above can be used accordingly. The direction of movement of the covers in these embodiments is then opposite to those described. Thus, in a desk ventilator, the cover, which is a baffle, is urged upwardly from a rest position to an operative position, and pivoted upward from a rest position to an operative position with a cover that is a flap, each movement being by an eccentric can. The components of the actuator are provided at a table fan below the cover.

Mit der vorliegenden Erfindung wird eine Dunstabzugsvorrichtung geschaffen, insbesondere eine Dunstabzugshaube, die beispielsweise eine Esse oder ein DeckenlĆ¼fters sein kann. Die Dunstabzugsvorrichtung weist eine oder mehrere bewegbare Abdeckungen, insbesondere Prallplatten und/oder Klappen auf. Bei der Erfindung kann eine Prallplatte aus einer federrĆ¼ckgestellten Ruheposition, die auch als Passivposition bezeichnet werden kann, mittels eines Exzenters in die Betriebsposition, die auch als Aktivposition bezeichnet werden kann, bewegt werden. Vorzugsweise wird der Exzenter auf der Motorwelle eines Antriebsmotors montiert und durch Drehen der Motowelle wird ein Hub realisiert. Dieser kann beispielsweise 25mm betragen. Stellen die Abdeckungen Klappen dar, kann ein analoges System angewendet werden.With the present invention, a fume extraction device is provided, in particular an extractor hood, which may be, for example, a dining or a ceiling fan. The extractor device has one or more movable covers, in particular baffles and / or flaps. In the invention, a baffle plate from a spring-rest position, which can also be referred to as a passive position, by means of an eccentric in the operating position, which can also be referred to as an active position, are moved. Preferably, the eccentric is mounted on the motor shaft of a drive motor and by turning the motor shaft, a stroke is realized. This can be for example 25mm. If the covers are flaps, an analogue system can be used.

Die vorliegende Erfindung weist eine Reihe von Vorteilen auf. Insbesondere ist ein geringer Bauraum im Frontend erforderlich und daher eine leichtere Reinigung und eine leichteres Abklappen der Prallplatte mƶglich. Zudem ist ein Einklemmschutz gegeben, da nur eine Federkraft wirkt. Optional ist eine Rutschkopplung mƶglich. Weiterhin ist eine stufenlose Einstellung der Prallplatte(n)- und Klappenposition mƶglich. DarĆ¼ber hinaus ist eine mechanische Entkopplung von Antriebsmotor und Prallplatte /Klappe gegeben. SchlieƟlich kann durch EndanschlƤge die Position genau definiert und mit hoher Positionsgenauigkeit angefahren werden.The present invention has a number of advantages. In particular, a small space in the front end is required and therefore easier cleaning and easier folding of the baffle plate possible. In addition, a pinch protection is given, since only one spring force acts. Optionally, a slip coupling is possible. Furthermore, a continuous adjustment of the baffle plate (s) - and flap position is possible. In addition, a mechanical decoupling of drive motor and flapper / flap is given. Finally, the position can be precisely defined by end stops and approached with high position accuracy.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
DunstabzugsvorrichtungExhaust hood
1010
DunstabzugsgehƤuseExtractor housing
100100
GehƤuseƶffnunghousing opening
1111
Rahmenframe
1212
Prallplatteflapper
1313
Randspaltmarginal gap
1414
Mittelplattecenter plate
140140
Vorsprunghead Start
1515
Klappeflap
150150
Einbuchtungindentation
1616
Absaugspaltsuction gap
1717
Abdeckungcover
22
BetƤtigungsvorrichtungactuator
2020
Antriebsmotordrive motor
200200
Motorwellemotor shaft
2121
Exzentereccentric
210210
ExzenternaseExzenternase
2222
Federelementspring element
2323
Verbindungsstangeconnecting rod
2424
LanglochLong hole

Claims (11)

Dunstabzugsvorrichtung mit einem DunstabzugsgehƤuse (10), einer in dem DunstabzugsgehƤuse (10) vorgesehenen GehƤuseƶffnung (100) und mindestens einer Abdeckung (17, 12, 15) fĆ¼r zumindest einen Teil der GehƤuseƶffnung (100), dadurch gekennzeichnet, dass die Abdeckung (17, 12, 15) zu dem DunstabzugsgehƤuse (10) beweglich gelagert ist und die Dunstabzugsvorrichtung (1) eine BetƤtigungsvorrichtung (2) umfasst, die mindestens einen Exzenter (21) aufweist, der so angeordnet ist, dass dieser mit der Seite der Abdeckung (17, 12, 15), die dem Inneren des DunstabzugsgehƤuses (10) zugewandt ist, in Kontakt gebracht werden kann.Vapor extraction device with a fume hood housing (10), a housing opening (100) provided in the fume hood housing (10) and at least one cover (17, 12, 15) for at least part of the housing opening (100), characterized in that the cover (17, 12, 15) to the extractor housing (10) is movably mounted and the extractor device (1) comprises an actuating device (2) having at least one eccentric (21) which is arranged so that it with the side of the cover (17, 12, 15) which faces the interior of the extractor housing (10) can be brought into contact. Dunstabzugsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die BetƤtigungsvorrichtung (2) einen Antriebsmotor (20) zum Antreiben des Exzenters (21) aufweist und der Exzenter vorzugsweise auf der Motorwelle (200) des Antriebsmotors (20) montiert ist.Vapor extraction device according to claim 1, characterized in that the actuating device (2) has a drive motor (20) for driving the eccentric (21) and the eccentric is preferably mounted on the motor shaft (200) of the drive motor (20). Dunstabzugsvorrichtung nach einem der AnsprĆ¼che 1 oder 2, dadurch gekennzeichnet, dass die BetƤtigungsvorrichtung (2) mindestens ein Federelement (22) umfasst, das die Abdeckung (17, 12, 15) in einer Ruheposition hƤlt.Vapor extraction device according to one of claims 1 or 2, characterized in that the actuating device (2) comprises at least one spring element (22) which holds the cover (17, 12, 15) in a rest position. Dunstabzugsvorrichtung nach einem der AnsprĆ¼che 1 bis 3, dadurch gekennzeichnet, dass der Exzenter (21) in einer Betriebsposition der Abdeckung (17, 12, 15) mit der Exzenternase (210) an der Abdeckung (17, 12, 15) anliegt.Vapor extraction device according to one of claims 1 to 3, characterized in that the eccentric (21) in an operating position of the cover (17, 12, 15) with the eccentric nose (210) on the cover (17, 12, 15). Dunstabzugsvorrichtung nach einem der AnsprĆ¼che 1 bis 4, dadurch gekennzeichnet, dass die Abdeckung (17, 12, 15) eine Prallplatte (12) darstellt.Vapor extraction device according to one of claims 1 to 4, characterized in that the cover (17, 12, 15) is a baffle plate (12). Dunstabzugsvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Prallplatte (12) zur vertikalen Bewegung in dem DunstabzugsgehƤuse (10) gelagert ist.Vapor extraction device according to claim 5, characterized in that the baffle plate (12) for vertical movement in the extractor housing (10) is mounted. Dunstabzugsvorrichtung nach einem der AnsprĆ¼che 1 bis 4, dadurch gekennzeichnet, dass die Abdeckung (17, 12, 15) eine Klappe (15) darstellt, die Ć¼ber ein Gelenk verschwenkbar an dem DunstabzugsgehƤuse (10) gelagert ist.Vapor extraction device according to one of claims 1 to 4, characterized in that the cover (17, 12, 15) is a flap (15) which is pivotally mounted on a hinge on the extractor housing (10). Dunstabzugsvorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass das Gelenk durch eine Verbindungsstange (23) und den Exzenter (21) gebildet wird und ein Ende der Verbindungsstange (23) vorzugsweise in einem Langloch (24) gefĆ¼hrt ist.Vapor extraction device according to claim 7, characterized in that the joint is formed by a connecting rod (23) and the eccentric (21) and one end of the connecting rod (23) is preferably guided in a slot (24). Dunstabzugsvorrichtung nach einem der AnsprĆ¼che 7 oder 8, dadurch gekennzeichnet, dass die Klappe (15) an einer Kante eine Einbuchtung (150) aufweist, Ć¼ber die die Klappe (15) sich in der Ruheposition auf einem Vorsprung (140) des DunstabzugsgehƤuses (10) oder einer in der GehƤuseƶffnung (100) des DunstabzugsgehƤuses (10) fest angebrachten Mittelplatte (14) abstĆ¼tzen kann.Vapor extraction device according to one of claims 7 or 8, characterized in that the flap (15) at one edge has a recess (150) through which the flap (15) in the rest position on a projection (140) of the extractor housing (10) or one in the housing opening (100) of the extractor housing (10) fixedly mounted center plate (14) can be supported. Dunstabzugsvorrichtung nach einem der AnsprĆ¼che 1 bis 9, dadurch gekennzeichnet, dass mehrere Exzenter (21) vorgesehen sind, die zumindest teilweise Ć¼ber einen gemeinsamen Antriebsmotor (20) angetrieben werden.Vapor extraction device according to one of claims 1 to 9, characterized in that a plurality of eccentrics (21) are provided which are at least partially driven by a common drive motor (20). Dunstabzugsvorrichtung nach einem der AnsprĆ¼che 1 bis 10, dadurch gekennzeichnet, dass die Dunstabzugsvorrichtung einen DeckenlĆ¼fter oder einen TischlĆ¼fter darstellt.Vapor extraction device according to one of claims 1 to 10, characterized in that the extractor device is a ceiling fan or a table fan.
EP17186901.9A 2016-09-26 2017-08-18 Vapour extraction device with cover for a housing aperture of the housing of the vapour extraction device Active EP3299725B1 (en)

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