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EP3299725B1 - 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
EP3299725B1
EP3299725B1 EP17186901.9A EP17186901A EP3299725B1 EP 3299725 B1 EP3299725 B1 EP 3299725B1 EP 17186901 A EP17186901 A EP 17186901A EP 3299725 B1 EP3299725 B1 EP 3299725B1
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.)
Active
Application number
EP17186901.9A
Other languages
German (de)
French (fr)
Other versions
EP3299725A1 (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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 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 an extractor device with a cover for a housing opening in the extractor housing of an extractor device.
  • Conventional extractor hoods have filter surfaces for separating grease from the air-water-grease mixture that is created during cooking, which is also known as vapor.
  • Metal mesh filters or expanded metal filters are usually used here, which are located on the underside of the extractor hood facing the hob.
  • 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 the extractor device and can be deposited on the filter elements. In addition, odors can possibly escape through the edge gap.
  • a cooking device in which a hob can be received in the underside of an extractor hood and this can be closed over it.
  • the hob is guided over telescopic rods and driven manually and / or by motor.
  • a disadvantage of this device is to on the one hand in the complex structure of the device and on the other hand in the fact that when the hob is moved into the extractor hood, there is a risk for the user that his fingers will be pinched.
  • CN 202382296 U describes a flap-like inlet device for an extractor hood, which has a flap and a drive motor.
  • a drive wheel is connected to the drive motor.
  • a push rod is connected at one end to the flap and at the other end at an eccentric position of the drive wheel.
  • an inwardly open double-inlet hood which has an air plenum chamber which comprises an arcuate panel.
  • the panel includes a flow guide cover.
  • the hood has a connecting device which comprises an electric motor and an eccentric wheel and a flywheel which is attached to the eccentric wheel.
  • the other end of the swing bar is connected to an upper pivot shaft on the back of the cover.
  • the EP 3 018 420 A1 finally discloses an extractor hood that is integrated in a hob or worktop.
  • the extractor hood has a movable part with a top plate.
  • drive means are provided which move the movable part up and down.
  • the drive means consist of a shaft with cams attached to it.
  • the moving part is moved by the lateral surface of the cams.
  • the cams attack the underside of a rail, on the upper side of which the movable part rests but is not connected to the rail.
  • EP 2 383 526 A2 discloses a device for controlling the flow of air through an exhaust duct which has an opening for the passage of air and an exhaust valve for closing the opening.
  • the valve has a cross section that is larger than the cross section of the opening.
  • the device comprises means for moving the exhaust valve in a substantially perpendicular manner from a closed state to an open state and back.
  • EP 2 216 603 A2 describes an extractor hood device for extracting haze or fumes. Covers that cover openings are provided on the extractor device.
  • the covers consist of a cover base body and a closing element.
  • the base body is connected to a cover holder, which are connected via swivel brackets in the housing.
  • the displacement of the covers is generated via an output, which has disc-shaped elements and levers, which is rotatably attached to the cover holder.
  • the object of the present invention is therefore to create an extractor hood which has an improved visual appearance with a simple structure, but which on the one hand allows reliable extraction of vapors and vapors.
  • a fume extractor device is a device by means of which vapors and vapors, which arise, for example, during cooking, can be sucked in and cleaned, in particular filtered.
  • the extractor device can in particular represent a chimney, a ceiling ventilator or a table ventilator, which can also be referred to as a hollow ventilator.
  • the extractor hood device has an extractor hood housing. At least one filter element is arranged in this extractor housing.
  • the filter element or the filter elements are preferably 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. Air can enter the extractor housing via this housing opening, at least in some areas.
  • the extractor housing can, for example, represent the outer housing of the extractor device at Essen or from a cladding element, such as for example, be surrounded by a fireplace.
  • the extractor housing can be attached to or inserted into the ceiling of the room in which the extractor device is operated.
  • the extractor housing can also be attached indirectly to the ceiling, for example by means of ropes or wires, which can optionally also be adjustable in length.
  • a table-top ventilator which is also referred to as a downdraft 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 is a component that represents a plate or flap, which is arranged so that it lies in front of the filter element in the direction of flow and at least partially covers the filter surface in a vertical projection onto the filter surface of the filter element.
  • the cover lies at least temporarily in the housing opening or lies in the area of the housing opening. The cover closes the housing opening either alone or together with other parts, such as a center plate.
  • the cover is movably mounted in relation to the extractor housing.
  • the cover can execute a translational movement and / or a pivoting movement relative to the extractor housing and in particular the housing opening.
  • the cover can preferably be brought into at least two different positions, one being referred to as the rest position and one as the operating position.
  • the rest position the cover is in a state in which it rests against the extractor housing or is received in this in the housing opening.
  • the cover In the operating position, the cover is in a state in which at least a part of the cover is located away from the extractor housing, that is, it is not located in the extractor housing and not in the housing opening and air can thereby enter the extractor housing.
  • the extractor device can be operated, that is, contaminated air can be sucked in and cleaned, in particular filtered.
  • the extractor hood device comprises an actuating device.
  • the cover can be moved by means of the actuating device.
  • the cover can be moved at least from one position to another position.
  • the actuating device moves the cover from a rest position into an operating position or from the operating position into the rest position. The transition between these two positions can be made continuously.
  • the cover can be stopped in any intermediate position.
  • the actuating device has at least one eccentric which is arranged in such a way 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 particular to be a component that can be mounted on a shaft and has a circumference that is not rotationally symmetrical.
  • the eccentric can therefore also be referred to as a curve wheel.
  • the eccentric preferably has a parabolic shape over part of the circumference.
  • a component can also be referred to as an eccentric which has a spiral-shaped circumference.
  • the periphery of the eccentric is in contact with the cover or can be brought into contact with it.
  • the eccentric or eccentrics are preferably attached to one or more side walls of the extractor housing, that is to say supported. In this case, the eccentric or the eccentrics can come into direct contact with the cover.
  • the eccentric or eccentrics are arranged on the top of the extractor housing. In this case, intermediate elements, which may protrude through the top of the extractor housing, can be used, via which the eccentric or eccentrics can apply a force to the cover (s).
  • the contact between the cover and the eccentric is indirect. As a result of the direct or indirect contact, a force can be applied from the eccentric to the cover.
  • the side on which the eccentric rests on the cover is the side that faces the interior of the extractor housing and thus preferably the filter element or elements.
  • This side is the upper side of an extractor device that represents a ceiling fan or a chimney with a horizontally lying housing opening Cover.
  • this side is the underside of the cover.
  • the eccentric can rest directly on this side of the cover.
  • intermediate elements are provided that extend upwards from this side, if necessary through the top of the extractor housing or, in the case of a table ventilator, downwards, optionally through the underside of the extractor housing, and that the eccentric extends onto this or these intermediate elements acts.
  • the cover By using an actuating device which has at least one eccentric which is arranged so that it can be brought into contact with the side of the cover that faces the interior of the extractor housing, the cover can be moved in a simple manner with respect to the extractor housing .
  • the cover can be pushed away from the extractor housing or brought up to it by the eccentric. This allows the operating position or rest position of the cover to be set.
  • the movement path of the cover can be defined by the difference between the largest and the smallest radius of the eccentric. Therefore, by suitable selection of the size of the eccentric, the movement path can be adjusted in a simple manner.
  • the user can be protected in a simple manner with this actuating device.
  • a slip clutch can be used on the mounting of the eccentric.
  • anti-trap protection can be ensured by a suitable selection of the spring force of a spring element, in particular a return field, through 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 activated, for example, via the control of the extractor device.
  • the drive motor can be controlled in such a way that it moves the eccentric in such a way that the cover is moved from the rest position to the operating position or vice versa.
  • the eccentric is particularly preferably mounted on the motor shaft of the drive motor. This simplifies the entire structure of the extractor device. In addition, the power to be provided by the drive motor is not increased by overcoming lever forces.
  • the actuating device preferably comprises at least one spring element.
  • the spring element is arranged in such a way that its spring force is directed opposite to the direction of a force which can be applied by the eccentric to the cover.
  • 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 rests against the cover with the eccentric nose in an operating position of the cover.
  • the eccentric nose is understood to mean the greatest eccentricity, that is to say the area where the eccentric has the largest radius. Since the eccentric rests against the cover in the operating position of the cover, i.e. in the extended position with the eccentric nose, the eccentric can be rotated completely, i.e. by 360 Ā°, during the transitions between the rest position and the operating position and between the operating position and the rest position. This means that the drive direction for the eccentric does not have to be changed.
  • the eccentric does not bear against the cover in the rest position or against a part of the circumference with the smallest radius and in the operating position with a part of the circumference between the smallest and the largest radius.
  • the eccentric is rotated in a different direction for retracting and extending the cover.
  • the cover represents a baffle plate.
  • a baffle plate is a plate which, in the operating position with the extractor housing, forms a circumferential gap through which air can enter the extractor housing.
  • the baffle plate covers at least part of the housing opening of the extractor housing and in particular of the filter element or elements arranged in the extractor housing in the direction of flow.
  • the baffle plate covers at least part of the filter surface, that is to say the inflow side of the filter element or elements.
  • the baffle plate In the rest position, the baffle plate preferably closes the entire housing opening of the extractor housing.
  • the cover In the embodiment in which the cover represents a baffle plate, the cover is moved in a translatory manner to the extractor housing, that is to say extended or retracted therefrom. This ensures that the edge gap is uniform over the circumference of the baffle plate and that a uniform suction of air can be guaranteed.
  • the translational movement can be guided by one or more guide elements in the extractor device according to the invention. The actual movement, however, takes place through the eccentric.
  • a single eccentric can be used if the force caused by this is distributed on the cover by guide elements or tilting of the cover is prevented in some other way.
  • several eccentrics are preferably used in the actuating device. In this way, on the one hand, a uniform application of force can be ensured on the cover. On the other hand, the requirements for drive motors that can drive the eccentrics can be reduced.
  • the cover is preferably mounted for vertical movement in the extractor housing.
  • Guide elements such as rails or rods can 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 against the direction of movement brought about by the eccentric.
  • the cover represents a flap which is pivotably mounted on the extractor housing via a hinge.
  • an actuating device which comprises at least one eccentric
  • the flap can be brought from a rest position into an operating position or from an operating position into a rest position by the eccentric.
  • the operating position of the flap is the position in which it is pivoted downwards in relation to the extractor housing or upwards in the case of a table ventilator.
  • the position in which the flap lies in the housing opening of the extractor housing or rests against it is referred to as the rest position.
  • the eccentric can act as a cover on the area of the flap that is to be pivoted relative to the housing opening in the operating state.
  • the eccentric preferably acts on the area of the flap which remains in the housing opening when the flap is pivoted or is pivoted upwards or downwards in relation to this.
  • the flap is connected to the extractor housing via a joint, which is formed by a connecting rod and the eccentric.
  • the connecting rod is preferably attached to the flap or the extractor housing in such a way that one end of the connecting rod can move in an elongated hole.
  • the rod can, for example, have an enlargement that holds the connecting rod in the elongated hole.
  • the flap is preferably mounted on the extractor housing in the vicinity of an edge of the cover. Since the flap is not mounted on the edge itself, the eccentric can act on the area between the edge and the bearing point.
  • the eccentric or eccentrics are arranged in this embodiment in such a way that they are located on the edge in the vicinity of which the flap is mounted, at least temporarily on the upper side Flap rests. In this embodiment it is particularly preferred that the eccentric or eccentrics is or are in contact with the flap in every position.
  • the flap is preferably held in the rest position, that is to say the closed position, by the eccentric nose.
  • the eccentric In the operating position in which the flap is pivoted to the extractor housing, the eccentric is located with a region of the circumference on the top of the flap in which it has a smaller radius than on the eccentric nose.
  • a separate spring element by means of which the cover can be brought from an operating position into the rest position, is therefore not required. This further simplifies the construction of the extractor device.
  • Air can be sucked into the extractor housing via the distance which is formed in the operating position of the flap between the edge of the flap, which is opposite the edge on which the eccentric engages, and the extractor housing.
  • the at least one flap is arranged on a central plate of the extractor housing, which is firmly connected to the extractor housing.
  • one or more flaps can be arranged on the center plate.
  • a flap can rest on two opposite edges of the middle plate. In the rest position of the flaps, the flaps lie in one plane with the middle plate of the extractor housing and thus jointly close the housing opening of the extractor housing.
  • a lighting device of the extractor device can be arranged in the middle plate.
  • the flap has an indentation on one edge, via which the flap can be supported in the rest position on a projection of the extractor housing or a center plate firmly attached in the housing opening of the extractor housing.
  • eccentrics are provided in the actuating device, which are at least partially driven by a common drive motor become.
  • two or more eccentrics can be rigidly connected to one another via a shaft which lies in the axis of the eccentric shaft.
  • a drive motor can then act on the connecting rod and thereby drive the eccentrics at the same time.
  • the extractor device is a ceiling fan.
  • a ceiling fan is particularly referred to as an extractor device that is attached to or mounted in a room ceiling.
  • the housing opening of the extractor housing that is to be covered by the cover or covers is horizontal.
  • the force of gravity, which acts on the covers can at least partially be used when the covers are extended or pivoted.
  • the fume extractor device can represent a table-top ventilator in which the force of gravity, which acts on the covers, is at least partially used when the covers are retracted or pivoted in.
  • the extractor device 1 is a ceiling fan.
  • the extractor device 1 comprises an extractor housing 10 and a cover 17, which in the embodiment shown is a baffle plate 12.
  • the extractor device 1 also has a frame 11, which can also be referred to as a vapor shield.
  • the extractor housing 10 there is a housing opening 100 in the underside through which air is to be sucked into the extractor housing 10.
  • At least one filter element (not shown) is arranged in the interior of the extractor housing 10.
  • the extractor device 1 has a fan (not shown).
  • the baffle plate 12 In the operating position, the baffle plate 12 is arranged in front of the housing opening 100 in the direction of flow. In the embodiment shown, the baffle plate 12 is therefore under the housing opening 100.
  • the baffle plate 12 has a size that at least corresponds to the size of the housing opening 100.
  • An edge gap 13 is formed between the underside of the extractor housing 10 and the top of the baffle plate 12, through which air can enter the extractor housing 10.
  • the cover 17, which is designed as a baffle plate 12, is movably attached to the extractor housing 10. The movement of the baffle plate 12 takes place by means of an actuating device 2, which in the Figure 2 is shown in more detail.
  • the actuating device 2 has an eccentric 21.
  • the eccentric 21 is driven by a drive motor 20, that is to say can be moved via 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 with its upper end is attached to the top of the extractor housing 10.
  • the lower end of the spring element 22 is connected to the top of the baffle plate 12, for example introduced into it.
  • the operating position of the baffle plate 12 that is to say the position extended downward from the extractor housing 10, is shown. In this operating position, the eccentric 21 is rotated so that the Eccentric nose 210 of eccentric 21 rests against the top of baffle plate 12.
  • the baffle plate 12 is pressed downward against the force which acts on the baffle plate 12 through the spring element 22 and pulls it upwards. If the eccentric 21 is rotated through a certain angular amount from this position, the circumference of the eccentric 21 runs along the top of the baffle plate 12. Since the radius of the eccentric 21 decreases, the baffle plate 12 can be pulled upwards by the spring force of the spring element 22. In a rest position, the baffle plate 12 shown lies in the housing opening 100 of the extractor housing 10. In this rest position, the baffle plate 12 can rest on a part of the circumference of the eccentric 21 which has a smaller radius than the eccentric nose 210.
  • the baffle plate 12, which is pulled upward by the spring element 22, can be prevented from penetrating further into the housing opening 100.
  • the spring element 22 can also be designed in such a way 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 can be arranged at such a height in the extractor housing 10 that the area with a small radius is spaced apart from the top of the baffle plate 12 in the rest position, since due to the lack of spring force there is no longer any counteracting force from the eccentric 21 must be applied.
  • stops can also be provided on the extractor housing 10, which prevent the baffle plate 12 against the spring force of the spring element 22 from further penetrating beyond the rest position into the extractor housing 10.
  • the extractor device 1 has an extractor housing 10, of which in Figure 3 only one frame 11 can be seen.
  • the extractor housing 10 is integrated in a room wall.
  • the frame 11 can also be formed by the underside of the extractor housing 10.
  • the extractor device 1 according to the second embodiment can, however, also as in FIG Figure 1 shown to be mounted under the ceiling and have a larger frame 11, which can be referred to as a vapor shield.
  • two covers 17, which are designed as flaps 15, are provided on the housing opening 100.
  • a center plate 14 is introduced into the housing opening.
  • the middle plate 14 is firmly connected to the extractor housing 10.
  • a flap 15 is arranged on each of two opposite edges of the central plate 14.
  • the flaps 15 are in the Figure 3 shown in the operating position. In this position, the flaps 15 are pivoted downward relative to the surface of the central plate 14 and thus relative to the surface of the housing opening 100. In the embodiment shown, the edge of the flap that faces away from the central plate 14 is pivoted downwards.
  • a suction gap 16 is thus formed between the flaps 15 and the housing opening 100.
  • FIG. 4 and 5 is an embodiment of the actuating device 2 for the embodiment of the extractor device 1, in which the covers 17 represent flaps 15, in particular for the embodiment according to Figure 3 shown.
  • the actuating device 2 comprises an eccentric 21 and a connecting rod 23.
  • a joint is formed by the connecting rod 23 and the eccentric 21.
  • the connecting rod 23 is attached to the top of the range hood housing 10 with the upper end of the connecting rod 23.
  • the lower end of the connecting rod 23 is received in an elongated hole 24 in the top of the flap 15.
  • a thickening or widening is preferably provided at the lower end, by means of which the lower end is held in the elongated hole 24.
  • the connecting rod 23 is connected to the flap 15 in the vicinity of the edge with which the flap 15 rests on the central plate 14. In the embodiment shown, this edge has an indentation 150 which can engage with a rounded projection 140 on the central plate 14. However, it is also within the scope of the invention to configure the edge of the flap 15, which rests on the central plate 14, without an indentation and to configure the central 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 point which lies above the edge of the flap 10 which rests against the central plate 14.
  • the eccentric 21 is attached at a height at which the eccentric nose 210, when it faces downward, on the top of the flap 15 in the Resting position. This rest position, in which the flap 15 lies in the plane of the central plate 14, is shown in FIG Figure 5 shown.
  • the eccentric lug 210 presses 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, due to its own weight, can with the end facing away from the middle plate 14, swivel downwards.
  • the invention has essentially been described on the basis of embodiments in which the extractor device is a ceiling fan.
  • an extractor device which is a table ventilator, which can also be referred to as a trough ventilator
  • the embodiments of the actuating devices 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 that described.
  • the cover which is a baffle plate
  • the cover which is a baffle plate
  • the components of the actuating device are provided below the cover in the case of a downdraft extractor.
  • an extractor device in particular an extractor hood, which can be, for example, a chimney or a ceiling fan.
  • the extractor device has one or more movable covers, in particular baffle plates and / or flaps.
  • a baffle plate can be moved from a spring-return rest position, which can also be referred to as the passive position, by means of an eccentric into the operating position, which can also be referred to as an active position.
  • the eccentric is preferably mounted on the motor shaft of a drive motor and a stroke is implemented by rotating the motor shaft. This can be 25mm, for example. If the covers represent flaps, an analogous system can be used.
  • the present invention has a number of advantages. In particular, little installation space is required in the front end and therefore easier cleaning and easier folding down of the baffle plate is possible. In addition, there is protection against trapping, since only a spring force acts. A slip coupling is optionally possible. A stepless adjustment of the baffle plate (s) and flap position is also possible. In addition, there is a mechanical decoupling of the drive motor and baffle plate / flap. Finally, the position can be precisely defined using end stops and approached with high positional accuracy.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Description

Die vorliegende Erfindung betrifft eine Dunstabzugsvorrichtung mit Abdeckung fĆ¼r eine GehƤuseƶffnung des DunstabzugsgehƤuses einer Dunstabzugsvorrichtung.The present invention relates to an extractor device with a cover for a housing opening in the extractor housing of an extractor 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 separating grease from the air-water-grease mixture that is created during cooking, which is also known as vapor. Metal mesh filters or expanded metal filters are usually used here, which are located on the underside of the extractor hood facing the hob.

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 that the extraction opening of the extractor hood, which can also be referred to as the housing opening of the extractor housing, be largely covered with a baffle plate. This type of suction is also known as edge suction. Edge suction means that the actual filter surfaces, which are located in the housing opening or behind the housing opening in the direction of flow, are covered by a metal or glass cover. Around this cover, which is also referred to as a baffle plate, runs a circumferential gap, into which vapor enters or is sucked in. The advantage of this device design is that it has a good overall appearance and any contamination of the filter surface is 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 the extractor device and can be deposited on the filter elements. In addition, odors can possibly escape through 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 received in the underside of an extractor hood and this can be closed over it. The hob is guided over telescopic rods and driven manually and / or by motor. A disadvantage of this device is to on the one hand in the complex structure of the device and on the other hand in the fact that when the hob is moved into the extractor hood, there is a risk for the user that his fingers will be pinched.

In der CN 202382296 U wird eine klappenartige Einlassvorrichtung fĆ¼r eine Dunstabzugshaube beschrieben, die eine Klappe und einen Antriebsmotor aufweist. Einem Antriebsrad ist mit dem Antriebsmotor verbunden. Ein Druckstab ist mit einem Ende an der Klappe und mit dem anderen Ende an einer exzentrischen Position des Antriebsrades verbunden.In the CN 202382296 U describes a flap-like inlet device for an extractor hood, which has a flap and a drive motor. A drive wheel is connected to the drive motor. A push rod is connected at one end to the flap and at the other end at an eccentric position of the drive wheel.

In der CN 203 980 388 U ist eine nach innen offene Doppel-Einlass-Haube beschrieben, die eine Luftsammelkammer aufweist, die ein kreisbogenfƶrmiges Panel umfasst. Das Panel umfasst eine StrƶmungsfĆ¼hrungsabdeckung. Zudem weist die Haube eine Verbindungsvorrichtung auf, die einen elektrischen Motor und eine Exzenterrad und einen Schwungstab, das an dem Exzenterrad befestigt ist, umfasst. Das andere Ende des Schwungstabes ist mit einem oberen Gelenkschaft auf der RĆ¼ckseite der Abdeckung verbunden.In the CN 203 980 388 U an inwardly open double-inlet hood is described which has an air plenum chamber which comprises an arcuate panel. The panel includes a flow guide cover. In addition, the hood has a connecting device which comprises an electric motor and an eccentric wheel and a flywheel which is attached to the eccentric wheel. The other end of the swing bar is connected to an upper pivot shaft on the back of the cover.

Die EP 3 018 420 A1 offenbart schlieƟlich eine Dunstabzugshaube, die in einer Kochstelle oder einer Arbeitsplatte integriert ist. Die Dunstabzugshaube weist ein bewegliches Teil mit einer Oberplatte auf. Weiterhin sind Antriebsmittel vorgesehen, die das bewegliche Teil nach oben und nach unten bewegen. Die Antriebsmittel bestehen aus einem Schaft mit daran angebrachten Nocken. Durch die seitliche OberflƤche der Nocken wird das bewegliche Teil bewegt. Hierzu greifen die Nocken an die Unterseite einer Schiene an, auf deren Oberseite das bewegliche Teil aufliegt aber nicht mit der Schiene verbunden ist.The EP 3 018 420 A1 finally discloses an extractor hood that is integrated in a hob or worktop. The extractor hood has a movable part with a top plate. Furthermore, drive means are provided which move the movable part up and down. The drive means consist of a shaft with cams attached to it. The moving part is moved by the lateral surface of the cams. For this purpose, the cams attack the underside of a rail, on the upper side of which the movable part rests but is not connected to the rail.

EP 2 383 526 A2 offenbart eine Vorrichtung zur Steuerung des Luftstroms durch einen Abluftkanal, der eine Ɩffnung zum Durchlass von Luft und ein Abluftventil zum VerschlieƟen der Ɩffnung aufweist. Das Ventil umfasst einen Querschnitt auf, die grĆ¶ĆŸer ist als der Querschnitt der Ɩffnung. Die Vorrichtung umfasst Mittel zum Bewegen des Abluftventils in einem im Wesentlichen senkrechten Art von einem geschlossenen Zustand in einen geƶffneten Zustand und zurĆ¼ck. EP 2 383 526 A2 discloses a device for controlling the flow of air through an exhaust duct which has an opening for the passage of air and an exhaust valve for closing the opening. The valve has a cross section that is larger than the cross section of the opening. The device comprises means for moving the exhaust valve in a substantially perpendicular manner from a closed state to an open state and back.

In der EP 2 216 603 A2 ist eine Dunstabzugsvorrichtung zum Absaugen von Dunst oder Wrasen beschrieben. An der Dunstabzugsvorrichtung sind Abdeckungen vorgesehen, die Ɩffnungen abdecken. Die Abdeckungen bestehen aus einem Abdeckungengrundkƶrper sowie einem Abschlusselement. Der Grundkƶrper ist mit einem Abdeckungenhalter verbunden, die Ć¼ber Schwenklaschen in dem GehƤuse verbunden sind. Die Verschiebung der Abdeckungen wird Ć¼ber einen Abtrieb erzeugt, der scheibenfƶrmige Elemente und Hebel aufweist, der an dem Abdeckungenhalter drehbeweglich angebracht ist.In the EP 2 216 603 A2 describes an extractor hood device for extracting haze or fumes. Covers that cover openings are provided on the extractor device. The covers consist of a cover base body and a closing element. The base body is connected to a cover holder, which are connected via swivel brackets in the housing. The displacement of the covers is generated via an output, which has disc-shaped elements and levers, which is rotatably attached to the cover holder.

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.The object of the present invention is therefore to create an extractor hood which has an improved visual appearance with a simple structure, but which on the one hand allows reliable extraction of vapors and vapors.

Diese Aufgabe wird erfindungsgemƤƟ gelƶst durch eine Dunstabzugsvorrichtung mit den Merkmalen des Anspruchs 1.This object is achieved according to the invention by an extractor device with the features of claim 1.

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 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.A fume extractor device is a device by means of which vapors and vapors, which arise, for example, during cooking, can be sucked in and cleaned, in particular filtered. The extractor device can in particular represent a chimney, a ceiling ventilator or a table ventilator, which can also be referred to as a hollow ventilator. The extractor hood device has an extractor hood housing. At least one filter element is arranged in this extractor housing. The filter element or the filter elements are preferably 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. Air can enter the extractor housing via this housing opening, at least in some areas.

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 can, for example, represent the outer housing of the extractor device at Essen or from a cladding element, such as for example, be surrounded by a fireplace. In the case of a ceiling fan, the extractor housing can be attached to or inserted into the ceiling of the room in which the extractor device is operated. The extractor housing can also be attached indirectly to the ceiling, for example by means of ropes or wires, which can optionally also be adjustable in length. In the case of a table-top ventilator, which is also referred to as a downdraft 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 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. A cover is a component that represents a plate or flap, which is arranged so that it lies in front of the filter element in the direction of flow and at least partially covers the filter surface in a vertical projection onto the filter surface of the filter element. The cover lies at least temporarily in the housing opening or lies in the area 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.According to the invention, the cover is movably mounted in relation to the extractor housing. In particular, the cover can execute a translational movement and / or a pivoting movement relative to the extractor housing and in particular the housing opening. The cover can preferably be brought into at least two different positions, one being referred to as the rest position and one as the operating position. In the rest position, the cover is in a state in which it rests against the extractor housing or is received in this in the housing opening. In the operating position, the cover is in a state in which at least a part of the cover is located away from the extractor housing, that is, it is not located in the extractor housing and not in the housing opening and air can thereby enter the extractor housing. If the cover is in the operating position, the extractor device can be operated, that is, contaminated air can be sucked in 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 hood device comprises an actuating device. The cover can be moved by means of the actuating device. In particular, the cover can be moved at least from one position to another position. Particularly preferably, the actuating device moves the cover from a rest position into an operating position or from the operating position into the rest position. The transition between these two positions can be made continuously. 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 in such a way that it can be brought into contact with the side of the cover which faces the interior of the extractor housing. In the context of the invention, an eccentric is understood in particular to be a component that can be mounted on a shaft and has a circumference that is not rotationally symmetrical. The eccentric can therefore also be referred to as a curve wheel. The eccentric preferably has a parabolic shape over part of the circumference. Alternatively, however, a component can also be referred to as an eccentric which has a spiral-shaped circumference.

ErfindungsgemƤƟ 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.According to the invention, the periphery of the eccentric is in contact with the cover or can be brought into contact with it. This means that the axis of the eccentric is parallel to the surface of the cover. The eccentric or eccentrics are preferably attached to one or more side walls of the extractor housing, that is to say supported. In this case, the eccentric 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 eccentrics are arranged on the top of the extractor housing. In this case, intermediate elements, which may protrude through the top of the extractor housing, can be used, via which the eccentric or eccentrics can apply a force to the cover (s). In this case, the contact between the cover and the eccentric is indirect. As a result of the direct or indirect contact, a force can be applied from the eccentric 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 on which the eccentric rests on the cover is the side that faces the interior of the extractor housing and thus preferably the filter element or elements. This side is the upper side of an extractor device that represents a ceiling fan or a chimney with a horizontally lying housing opening Cover. In the case of an extractor device, which is a table fan with a horizontally lying housing opening, this side is the underside 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 that extend upwards from this side, if necessary through the top of the extractor housing or, in the case of a table ventilator, downwards, optionally through the underside of the extractor housing, and that the eccentric extends onto 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 actuating device which has at least one eccentric which is arranged so that it can be brought into contact with the side of the cover that faces the interior of the extractor housing, the cover can be moved in a simple manner with respect to the extractor housing . In particular, the cover can be pushed away from the extractor housing or brought up to it by the eccentric. This allows the operating position or rest position of the cover to be set. The movement path of the cover can be defined by the difference between the largest and the smallest radius of the eccentric. Therefore, by suitable selection of the size of the eccentric, the movement path can be adjusted in a simple manner. In addition, the user can be protected in a simple manner with this actuating device. In particular, in the embodiment in which the movement of the cover towards the extractor housing is effected by the eccentric, for example a slip clutch can be used on the mounting of the eccentric. In the embodiment in which the cover is moved away from the extractor housing by the eccentric, anti-trap protection can be ensured by a suitable selection of the spring force of a spring element, in particular a return field, through 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.For better understanding, the present invention is described below with reference to an extractor device with an actuating device which has an eccentric. Preferably, however, several fastening devices or one fastening device with several 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 activated, for example, via the control of the extractor device. When the fan is switched on, the drive motor can be controlled in such a way that it moves the eccentric in such a way that the cover is moved from the rest position to 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.The eccentric is particularly preferably mounted on the motor shaft of the drive motor. This simplifies the entire structure of the extractor device. In addition, the power to be provided by the drive motor is not increased by overcoming lever forces.

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 in such a way that its spring force is directed opposite to the direction of a force which can be applied by the eccentric to the cover. 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 setting of the rest position can be ensured and, on the other hand, protection against trapping can be created for the user. A clamping force that acts on the hand or fingers of the user when pulling in the cover, that is to say when moving from the operating position to the rest position, corresponds only to the spring force. The clamping force is thus lower than with actuating devices in which the cover is retracted, for example, via a screw 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 rests against the cover with the eccentric nose in an operating position of the cover. The eccentric nose is understood to mean the greatest eccentricity, that is to say the area where the eccentric has the largest radius. Since the eccentric rests against the cover in the operating position of the cover, i.e. in the extended position with the eccentric nose, the eccentric can be rotated completely, i.e. by 360 Ā°, during the transitions between the rest position and the operating position and between the operating position and the rest position. This means that the drive direction for the eccentric does not have to 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 does not bear against the cover in the rest position or against a part of the circumference with the smallest radius and in the operating position with a part of the circumference between the smallest and the largest radius. In this embodiment, the eccentric is rotated in a different direction for retracting and extending the cover.

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 represents a baffle plate. A baffle plate is a plate which, in the operating position with the extractor housing, forms a circumferential gap through which air can enter the extractor housing. The baffle plate covers at least part of the housing opening of the extractor housing and in particular of the filter element or elements arranged in the extractor housing in the direction of flow. In particular, the baffle plate covers at least part of the filter surface, that is to say the inflow side of the filter element or elements. In the rest position, the baffle plate 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 represents a baffle plate, the cover is moved in a translatory manner to the extractor housing, that is to say extended or retracted therefrom. This ensures that the edge gap is uniform over the circumference of the baffle plate and that a uniform suction of air can be guaranteed. The translational movement can be guided by one or more guide elements in the extractor device according to the invention. The actual movement, however, takes place through the eccentric. In the case of a baffle plate, a single eccentric can be used if the force caused by this is distributed on the cover by guide elements or tilting of the cover is prevented in some other way. In the case of a baffle plate, however, several eccentrics are preferably used in the actuating device. In this way, on the one hand, a uniform application of force can be ensured on the cover. On the other hand, the requirements for drive motors that can drive the eccentrics can be reduced.

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 can 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 against the direction of movement brought about 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 represents a flap which is pivotably mounted on the extractor housing via a hinge. By using an actuating device which comprises at least one eccentric, in this embodiment the flap can be brought from a rest position into an operating position or from an operating position into a rest position by the eccentric. The operating position of the flap is the position in which it is pivoted downwards in relation to the extractor housing or upwards in the case of a table ventilator. The position in which the flap lies in the housing opening of the extractor housing or rests against it is referred to as the rest position.

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.In the case of a flap, the eccentric can act as a cover on the area of the flap that is to be pivoted relative to the housing opening in the operating state. However, the eccentric preferably acts on the area of the flap which remains in the housing opening when the flap is pivoted or is pivoted upwards or downwards in relation to this.

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 to the extractor housing via a joint, which is formed by a connecting rod and the eccentric. The connecting rod is preferably attached to the flap or the extractor housing in such a way that one end of the connecting rod can move in an elongated hole. At this end, the rod can, for example, have an enlargement that holds the connecting rod in the elongated hole.

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.The flap is preferably mounted on the extractor housing in the vicinity of an edge of the cover. Since the flap is not mounted on the edge itself, the eccentric can act on the area between the edge and the bearing point. The eccentric or eccentrics are arranged in this embodiment in such a way that they are located on the edge in the vicinity of which the flap is mounted, at least temporarily on the upper side Flap rests. In this embodiment it is particularly preferred that the eccentric or eccentrics is or are in contact with the flap in every position. In this embodiment, the flap is preferably held in the rest position, that is to say the closed position, by the eccentric nose. In the operating position in which the flap is pivoted to the extractor housing, the eccentric is located with a region of the circumference on the top of the flap in which it has a smaller radius than on the eccentric nose. In this embodiment, a separate spring element, by means of which the cover can be brought from an operating position into the rest position, is therefore not required. This further simplifies the construction of the extractor device.

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.Air can be sucked into the extractor housing via the distance which is formed in the operating position of the flap between the edge of the flap, which is opposite the edge on which the eccentric engages, and 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 central 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 can be arranged on the center plate. For example, a flap can rest on two opposite edges of the middle plate. In the rest position of the flaps, the flaps lie in one plane with the middle plate of the extractor housing and thus jointly close the housing opening of the extractor housing. For example, a lighting device of the extractor device can be arranged in the middle plate.

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 one edge, via which the flap can be supported in the rest position on a projection of the extractor housing or a center plate firmly attached 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, several 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 can be rigidly connected to one another via a shaft which lies in the axis of the eccentric shaft. A drive motor can then act on the connecting rod and thereby drive the eccentrics at the same time.

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 fan. A ceiling fan is particularly referred to as an extractor device that is attached to or mounted in a room ceiling. In the case of ceiling fans, the housing opening of the extractor housing that is to be covered by the cover or covers is horizontal. As a result, the force of gravity, which acts on the covers, can at least partially be used when the covers are extended or pivoted.

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 fume extractor device can represent a table-top ventilator in which the force of gravity, which acts on the covers, is at least partially used when the covers are retracted or pivoted in.

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 is described again below with reference to the accompanying figures. Show it:
Figure 1:
a perspective bottom view of an embodiment of the extractor device with a cover in the operating position;
Figure 2:
a schematic sectional view of the embodiment according to Figure 1 in the area of the actuating device;
Figure 3:
a perspective bottom view of a further embodiment of the extractor device with two covers in the operating position;
Figure 4:
a schematic sectional view of the embodiment according to Figure 3 in the area of the actuating device with the cover in the operating position; and
Figure 5:
a schematic sectional view of the embodiment according to Figure 3 in the area of the actuating device 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 Figure 1 an embodiment of the extractor device 1 according to the invention is shown. In the embodiment shown, the extractor device 1 is a ceiling fan. The extractor device 1 comprises an extractor housing 10 and a cover 17, which in the embodiment shown is a baffle plate 12. In the Figure 1 the extractor device 1 also has a frame 11, which can also be referred to as a vapor shield. In the extractor housing 10, there is a housing opening 100 in the underside through which air is to be sucked into the extractor housing 10. At least one filter element (not shown) is arranged in the interior of the extractor housing 10. In addition, the extractor device 1 has 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.In the operating position, the baffle plate 12 is arranged in front of the housing opening 100 in the direction of flow. In the embodiment shown, the baffle plate 12 is therefore under the housing opening 100. The baffle plate 12 has a size that at least corresponds to the size of the housing opening 100. An edge gap 13 is formed between the underside of the extractor housing 10 and the top of the baffle plate 12, through which air can enter the extractor housing 10. The cover 17, which is designed as a baffle plate 12, is movably attached to the extractor housing 10. The movement of the baffle plate 12 takes place by means of an actuating device 2, which in the Figure 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.How out Figure 2 results, the actuating device 2 has an eccentric 21. The eccentric 21 is driven by a drive motor 20, that is to say can be moved via this. In the embodiment shown, 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 with its upper end is attached to the top of the extractor housing 10. The lower end of the spring element 22 is connected to the top of the baffle plate 12, for example introduced into it. In the Figure 2 the operating position of the baffle plate 12, that is to say the position extended downward from the extractor housing 10, is shown. In this operating position, the eccentric 21 is rotated so that the Eccentric nose 210 of eccentric 21 rests against the top of baffle plate 12. As a result, the baffle plate 12 is pressed downward against the force which acts on the baffle plate 12 through the spring element 22 and pulls it upwards. If the eccentric 21 is rotated through a certain angular amount from this position, the circumference of the eccentric 21 runs along the top of the baffle plate 12. Since the radius of the eccentric 21 decreases, the baffle plate 12 can be pulled upwards by the spring force of the spring element 22. In a rest position, the baffle plate 12 shown lies in the housing opening 100 of the extractor housing 10. In this rest position, the baffle plate 12 can rest on a part of the circumference of the eccentric 21 which has a smaller radius than the eccentric nose 210. In this way, the baffle plate 12, which is pulled upward 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 in such a way 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 can be arranged at such a height in the extractor housing 10 that the area with a small radius is spaced apart from the top of the baffle plate 12 in the rest position, since due to the lack of spring force there is no longer any counteracting force from the eccentric 21 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 can also be provided on the extractor housing 10, which prevent the baffle plate 12 against the spring force of the spring element 22 from further penetrating beyond the rest position into 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 Figures 3 to 5 a second embodiment of the extractor device 1 according to the invention is shown. In this embodiment, the extractor device 1 has an extractor housing 10, of which in Figure 3 only one frame 11 can be seen. The extractor housing 10 is integrated in a room wall. The frame 11 can also be formed by the underside of the extractor housing 10. The extractor device 1 according to the second embodiment can, however, also as in FIG Figure 1 shown to be mounted under the ceiling and have a larger frame 11, which can be referred to as a vapor shield.

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 designed as flaps 15, are provided on the housing opening 100. In the embodiment shown, in addition to the two flaps 15, a center plate 14 is introduced into the housing opening. The middle plate 14 is firmly connected to the extractor housing 10. A flap 15 is arranged on each of two opposite edges of the central plate 14. The flaps 15 are in the Figure 3 shown in the operating position. In this position, the flaps 15 are pivoted downward relative to the surface of the central plate 14 and thus relative to the surface of the housing opening 100. In the embodiment shown, the edge of the flap that faces away from the central plate 14 is pivoted downwards. A suction gap 16 is thus 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 Figures 4 and 5 is an embodiment of the actuating device 2 for the embodiment of the extractor device 1, in which the covers 17 represent flaps 15, in particular for the embodiment according to Figure 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 actuating device 2 comprises an eccentric 21 and a connecting rod 23. A joint is formed by the connecting rod 23 and the eccentric 21. The connecting rod 23 is attached to the top of the range hood housing 10 with the upper end of the connecting rod 23. The lower end of the connecting rod 23 is received in an elongated hole 24 in the top of the flap 15. A thickening or widening is preferably provided at the lower end, by means of which the lower end is held in the elongated hole 24. The connecting rod 23 is connected to the flap 15 in the vicinity of the edge with which the flap 15 rests on the central plate 14. In the embodiment shown, this edge has an indentation 150 which can engage with a rounded projection 140 on the central plate 14. However, it is also within the scope of the invention to configure the edge of the flap 15, which rests on the central plate 14, without an indentation and to configure the central 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 point which lies above the edge of the flap 10 which rests against the central plate 14. The eccentric 21 is attached at a height at which the eccentric nose 210, when it faces downward, on the top of the flap 15 in the Resting position. This rest position, in which the flap 15 lies in the plane of the central plate 14, is shown in FIG Figure 5 shown. The eccentric lug 210 presses 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, due to its own weight, can with the end facing away from the middle plate 14, swivel downwards. This movement is guided by the connecting rod 23, which slides along the elongated hole, and through the circumference of the eccentric 21 in a region which has a smaller radius than the eccentric nose 210. As soon as 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, 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, the eccentric is then rotated in the opposite direction until the eccentric nose 210 points downwards again.

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 essentially been described on the basis of embodiments in which the extractor device is a ceiling fan. In the case of an extractor device, which is a table ventilator, which can also be referred to as a trough ventilator, the embodiments of the actuating devices 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 that described. Thus, in the case of a table ventilator, the cover, which is a baffle plate, is pushed upwards from a rest position into an operating position and, in the case of a cover, which is a flap, it is pivoted upwards from a rest position to an operating position, this movement being effected by an eccentric can. The components of the actuating device are provided below the cover in the case of a downdraft extractor.

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 an extractor device is created, in particular an extractor hood, which can be, for example, a chimney or a ceiling fan. The extractor device has one or more movable covers, in particular baffle plates and / or flaps. In the invention, a baffle plate can be moved from a spring-return rest position, which can also be referred to as the passive position, by means of an eccentric into the operating position, which can also be referred to as an active position. The eccentric is preferably mounted on the motor shaft of a drive motor and a stroke is implemented by rotating the motor shaft. This can be 25mm, for example. If the covers represent flaps, an analogous 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, little installation space is required in the front end and therefore easier cleaning and easier folding down of the baffle plate is possible. In addition, there is protection against trapping, since only a spring force acts. A slip coupling is optionally possible. A stepless adjustment of the baffle plate (s) and flap position is also possible. In addition, there is a mechanical decoupling of the drive motor and baffle plate / flap. Finally, the position can be precisely defined using end stops and approached with high positional accuracy.

BezugszeichenlisteList of reference symbols

11
DunstabzugsvorrichtungExtractor device
1010
DunstabzugsgehƤuseRange hood housing
100100
GehƤuseƶffnungHousing opening
1111
Rahmenframe
1212
PrallplatteBaffle plate
1313
RandspaltEdge gap
1414th
MittelplatteMiddle plate
140140
Vorsprunghead Start
1515th
Klappeflap
150150
Einbuchtungindentation
1616
AbsaugspaltSuction gap
1717th
Abdeckungcover
22
BetƤtigungsvorrichtungActuator
2020th
AntriebsmotorDrive motor
200200
MotorwelleMotor shaft
2121st
Exzentereccentric
210210
ExzenternaseEccentric nose
2222nd
FederelementSpring element
2323
VerbindungsstangeConnecting rod
2424
LanglochLong hole

Claims (11)

  1. Vapour extraction device with a housing (10), a housing aperture (100) provided in the housing (10) and at least one cover (17, 12, 15) for at least one part of the housing aperture (100), wherein at least one filter element is arranged in the housing, characterised in that the cover (17, 12, 15) is supported movably with respect to the housing (10), that the vapour extraction device (1) comprises an actuation device (2), which has at least one eccentric (21) which is arranged so that the periphery of the eccentric (21) is in contact or can be brought into contact with the side of the cover (17, 12, 15) which is facing the interior of the housing (10), as a result of which a force is applied from the eccentric (21) to the cover (17, 12, 15), that the periphery of the eccentric (21) is not rotationally symmetrical and that the cover (17, 12, 15) is upstream of the filter element in the flow direction, at least partially covers the filter surface in the vertical projection onto the filter surface of the filter element and the cover (17, 12, 15) represents a plate (12) or flap (15).
  2. Vapour extraction device according to claim 1, characterised in that the actuation 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).
  3. Vapour extraction device according to one of claims 1 or 2, characterised in that the actuation device (2) comprises at least one spring element (22), which holds the cover (17, 12, 15) in a rest position.
  4. Vapour extraction device according to one of claims 1 to 3, characterised in that in an operating position of the cover (17, 12, 15) with the eccentric lug (210) the eccentric (21) rests on the cover (17, 12, 15).
  5. Vapour extraction device according to one of claims 1 to 4, characterised in that the cover (17, 12, 15) represents a baffle plate (12).
  6. Vapour extraction device according to claim 5, characterised in that the baffle plate (12) is supported for vertical movement in the housing (10).
  7. Vapour extraction device according to one of claims 1 to 4, characterised in that the cover (17, 12, 15) represents a flap (15), which is supported pivotably on the housing (10) by way of a hinge.
  8. Vapour extraction device according to claim 7, characterised in that the hinge is formed by a connecting rod (23) and the eccentric (21) and one end of the connecting rod (23) is preferably guided in an elongated hole (24).
  9. Vapour extraction device according to one of claims 7 or 8, characterised in that the flap (15) has an indentation (150) at one edge, by way of which the flap (15), in the rest position, can rest on a projection (140) of the housing (10) or a central plate (14) attached fixedly in the housing aperture (100) of the housing (10).
  10. Vapour extraction device according to one of claims 1 to 9, characterised in that a number of eccentrics (21) are provided, which are driven at least partially by way of a shared drive motor (20).
  11. Vapour extraction device according to one of claims 1 to 10, characterised in that the vapour extraction device represents a cover 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)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016218470.9A DE102016218470A1 (en) 2016-09-26 2016-09-26 Extractor device with cover for a housing opening of the extractor housing of the extractor device

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Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
EP3415822A1 (en) * 2017-06-13 2018-12-19 BSH HausgerƤte GmbH Cooker hood
DE102019119064B4 (en) * 2019-07-15 2021-07-01 Miele & Cie. Kg Extractor hood and method for moving at least one screen device
CN112728612A (en) * 2021-02-05 2021-04-30 äø­å±±åø‚ē”œē¾Žē”µå™Øęœ‰é™å…¬åø Rear smoke exhaust type smoke exhaust ventilator
CN115585493A (en) * 2022-10-27 2023-01-10 å®ę³¢ę–¹å¤ŖåŽØå…·ęœ‰é™å…¬åø Fume exhaust fan

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DE10309226A1 (en) 2002-12-20 2004-07-01 BSH Bosch und Siemens HausgerƤte GmbH Electric cooker hob has fume extractor and telescopic height adjustment means to raise hob for food preparation
CN201964494U (en) 2011-01-22 2011-09-07 čƒ”ę ‘ę ‡ Range hood with self-controlled opening and closing of deflector
CN202382296U (en) * 2011-12-19 2012-08-15 刘廷北 A flap-type air intake device for a household range hood
CN202675417U (en) 2012-07-04 2013-01-16 å®ę³¢ę–¹å¤ŖåŽØå…·ęœ‰é™å…¬åø Smoke exhauster with smoke blocking screen capable of being opened and closed automatically
CN203052775U (en) 2012-11-13 2013-07-10 å®ę³¢ę–¹å¤ŖåŽØå…·ęœ‰é™å…¬åø Range hood
CN203980388U (en) * 2014-07-04 2014-12-03 å·“ę–‡å­¦ Inner opening double air intake range hood
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EP3018420A1 (en) * 2014-11-04 2016-05-11 CONCEPT SWISS AG Kitchen Systems Extractor hood integrated in a hob

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EP2216603A2 (en) * 2009-02-04 2010-08-11 Miele & Cie. KG Fume extraction device with self-actuated torque-activated safety coupling
EP2383526A2 (en) * 2010-04-29 2011-11-02 Intell Properties B.V. Device and method for controlling airflow in an exhaust channel

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EP3299725A1 (en) 2018-03-28

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