EP2623869B1 - Extractor hood - Google Patents

Description

The invention relates to an extractor hood.

On cooker hoods, which are usually used in kitchens, at least one grease filter is provided. This filter must be removed at regular intervals to be cleaned or replaced with a new filter.

From the prior art it is known to provide filter cartridges with a sliding or pivoting handle. By pushing or pivoting the gripping tab provided on the pivoting handle, in this case, for example, two mandrels are displaced. In the assembled position of the filter cartridge hold the spikes of the handle together with particular fixed spikes, which are located on the opposite side to the thorns of the handle on the filter or on the hood, the filter in its installed position. The displaceable mandrels and possibly the fixed mandrels are inserted into corresponding cutouts in the extractor hood. Other types of attachment of filter elements to extractor devices are, for example EP 2 072 906 A2 and GB 2 249 493 A known.

In order to prevent the filter cartridge from falling out of the extractor hood, securing devices are known. Such a security device is for example in the DE 101 62 921 A1 described. In this securing device, a fastening element is attached to the pivoting handle via a band which can be inserted into an opening in the extractor hood and thereby hold the filter cassette in a position pivoted relative to the extractor hood. Thus, the falling down of the filter element can be prevented.

Moreover, from the US 4 231 769 A a filter ventilation system known. In this system, a filter element can be attached to a barrier wall. Attachment is via lips on the barrier wall as well as over bars. Furthermore, the filter element is held via a connection to the barrier wall. The connection comprises a pivotable elongate strip in which a pin provided on the filter element intervenes. To release the connection of the filter element, the bolt must be operated by means of an operating lever and thereby opened.

Furthermore, from the EP 1 291 584 A2 a safety device for a filter element known. In this device, a locking device is provided on the filter element. The filter element can be pivoted to the extractor hood. In this case, a connecting element engages around a web on the filter element. To release the filter element of the hood, the locking device must first be actuated on the filter element and then the connecting element must be brought out of engagement with the web.

Further describes DE 101 62 951 A1 an extractor hood with a housing and with one or more filters to clean a stream of air. On the upstream side of the hood at least one pivotable relative to the housing plate is provided, on which the filters are arranged.

DE 10 2005 008373 A1 describes a conventional cooker hood, which has a relative to the housing movable drawer and the drawer has a filter assembly.

In the DE 22 06 904 A1 a hood is described in which two filters are provided, wherein a second filter is releasably articulated to a movable frame of a housing and the first filter loosely in the bottom opening of the housing of the hood.

Finally, in EP 0 337 935 A1 a kitchen cooker hood described which has a pull-out slider. In the pull-out slide a glass sheet is provided. The filters, however, are fixed in the housing.

The present invention is therefore an object of the invention to provide a cooker hood, in which the filter removal can be done safely and easily and in particular requires minimal interaction of the user.

The invention is based on the finding that this object can be achieved by providing at least one release mechanism on the extractor hood, which can be triggered by the screen of the extractor hood.

According to the invention the object is therefore achieved by an extractor hood with the features of claim 1.

For the purposes of the present invention, an extractor hood is an extractor device which is preferably used in a kitchen for sucking and cleaning fumes and vapors. The Dunstäbzugshaube this includes a housing which, depending on the embodiment of the hood can also be referred to as a fireplace, in which a fan is arranged. Through the fan, which can also be referred to as a fan, air is sucked into the housing and can be discharged through an air outlet from the hood. The hood has below or at the bottom of the housing on a screen, which is also referred to as Wrasenschirm or viewing hood. In the screen, a suction opening is provided, through which the air can enter the housing. The screen may, in some embodiments, be displaced at least partially relative to the housing of the extractor hood. The suction port is covered by a filter element, which is also referred to as a grease filter. About the filter element impurities, especially grease and liquids are filtered out of the vapors and vapors. At the extractor hood are preferably a plurality of filter element intended. For a better understanding, however, in the following, essentially only one filter element is referred to.

The filter element is inventively held on the screen by means of at least one pivot bearing and at least one locking means. If a plurality of filter elements are provided, a pivot bearing and at least one locking means can be provided per filter element. But it is also possible to hold a plurality of filter element to a pivot bearing and a locking means on the screen. A pivot bearing is understood to be an attachment which can also be referred to as a pivot bearing, and by means of which the filter element can be pivoted about a pivot point or an axis of rotation relative to the screen. The pivot bearing may for example be implemented by pins on the filter element, which engage in corresponding recesses on the screen. Other pivot bearings, such as a tab on the screen, which engages in a recess on the filter element are possible according to the invention. Preferably, the pivot bearing has a stop which limits the pivoting of the filter element to a predetermined angular range between the held position of the filter element in the screen and a downwardly pivoted removal position. The held position of the filter element is also referred to as an installation position.

In addition to the at least one pivot bearing, the filter element is additionally held by at least one locking means on the screen in the installed position. The locking means serves to hold the filter element against a possible pivoting movement about the pivot bearing in the installed position. For this purpose, the locking means may be provided on the filter element or on the screen. The locking means is a means that counteracts the gravity of the filter element. The locking means may constitute a mechanical and / or a magnetic means. For example, the locking means may be a locking means which engages in a latching recess. Alternatively, the locking means may for example be a magnet which holds the filter element to the screen. Finally, the locking means may also constitute a support on which at least a part of the filter element rests in the installed position. The locking means may be provided on the filter element on the side opposite to the side of the pivot bearing. But it is also possible that the locking means on the same side the filter element, as the pivot bearing attacks. This embodiment is possible in particular with a magnetic locking means or a support.

Furthermore, the extractor hood, a release device for at least partially releasing the caused by the at least one pivot bearing and at least one locking means holding the filter element comprises. As a release device is referred to in the sense of the present invention, a device by means of which the holder of the filter element is released on the screen so far that this is either held only on the pivot bearing on the screen or that the connection of the filter element with the screen, the by the locking means can be repealed. In the former case, the connection, which consists of the locking means and is also referred to below as locking, lifted by the release device, that is separated. The release device may be, for example, a mechanical, electrical or magnetic device.

The release device is arranged according to the invention on the screen of the hood. As arranged on the screen, in the sense of the invention, a release device is provided which is provided in the screen or which forms part of the screen. In particular, the part of the release device which must be actuated to trigger the release operation is arranged on the screen.

The inventive construction of the hood allows a simple and reliable removal of the filter element from the hood. In particular, by the arrangement of the release device on the screen, the filter can be particularly simple. In particular, no actuator, such as a sliding or pivoting handle on the filter element is necessary. In the simplest case, the user of the cooker hood for removing the filter element from the hood only need to cancel the connection that exists from the filter element to the screen via the pivot bearing. This can be done by simply levering. In addition, since the filter is held on the screen in addition to the locking means by the pivotal bearing, uncontrolled dropping can be prevented even after releasing the detent.

According to the invention, the release device is actuated by moving at least part of the umbrella. The part of the screen which is moved to operate the release device may be a body part of the umbrella or a means arranged in the umbrella. By the release device is triggered by movement of a portion of the screen, the release of the filter element is further simplified. Preferably, the part of the screen which has to be moved to actuate the release device is arranged on the front side of the screen or at least forms part of the front side of the screen. The screen faces the user of the hood at least with its front side and can therefore be easily reached by the user. In particular, in contrast to the filter element, which is usually provided in the bottom of the screen, the user can easily access the front of the screen and thus initiate the filter change operation or the filter removal process.

The release device is at least partially spaced from the locking means according to one embodiment. The release device preferably engages or at least acts on the locking means provided on the filter element. However, the arrangement of the release device in the screen at least a portion of the release device to be spaced from the locking means. For example, at least a part of the release device can be arranged on the front side of the screen or on the rear side of the screen. In this way, the release device can be protected from impurities that occur on the filter element, in particular fat or liquid deposits or is at least exposed to this only less.

According to one embodiment, the release device comprises a control element, for example in the form of a button on the outside of the screen. The key is preferably arranged on the front side of the screen and can be integrated, for example, in a control bar. The key can be used to generate a mechanical force or an electrical signal which then acts on the locking means and releases the locking. The button can be a lift button. In this case, the button represents the part of the screen which is moved to release the holder. In such a key, the force that is necessary to cancel the lock, for example, to release a latching connection, be generated directly by the key stroke. However, it is also possible that, especially with buttons that do not have a hub to use an electrical signal generated by the operation of the button to release the lock. By the signal, for example, a switch can be actuated. The advantage of providing a button for triggering the release operation is, in particular, that the user only has to touch the filter element in order to release it from the connection of the pivot bearing. Further contact with the filter element to cancel the lock is not necessary here.

According to the invention, the release device comprises the guidance of a part of the umbrella which constitutes a displaceable drawer. The pull-out drawer can also be called a pull-out screen. As a drawer extract the part of the screen is referred to, which can be moved relative to a main body of the screen, in particular pulled out to the front. In the pull-out drawer, at least one of the filter elements of the extractor hood is preferably held. In addition, at least one further filter element can be held in the main body of the screen. The leadership of the drawer is formed in particular by a lateral support and is therefore hereinafter also referred to as a support. In the edition, the drawer is held and can be moved here. The support is provided on the main body of the screen or is formed by a part of the side walls of the base body. As part of the release device, the guide can serve in different ways. On the one hand, it is possible that the guide itself represents the release device. In this case, the filter element is held in addition to the pivot bearing by resting on a part of the rail in the installed position. By moving the pull-out drawer in the guide, this seating can be canceled and the filter element is pivoted downwards due to gravity. In this embodiment, the guide serves as a release device and at the same time as a locking means. The different functions of the support are in this case only due to the different relative positions of the drawer and thus the filter element in the drawer to the guide conditionally. In addition, a support may be provided on the drawer. This edition serves as a support for the at least one filter element which is provided in the base body. In particular, the filter element is in the Grundköper in the operating position of the drawer in the installed position and is held by the support in this position. If the drawer drawer over the operating position in a Extracted pull-out position, the support is moved to the drawer with respect to the or the filter elements on the base body and the filter elements or the filter elements are no longer in the pull-out position on the support. As a result, the filter element or are pivoted in the Grundköper when pulling out the drawer in the pull-out position in a removal position. Thus, when pulling out the drawer in the pull-out position at the same time or the filter elements in the base body and the or the filter element in the drawer are brought into the removal position.

According to the release of the holder of the filter element is triggered in an extended position of the drawer, which is offset to the operating position of the drawer. The operating position of the drawer is the position of the drawer with respect to the main body of the screen is called, in which the hood is operated. In this operating position, the drawer can be completely absorbed in the body or pulled out by a certain amount forward from the body. The pull-out position is offset from this operating position. In particular, the pull-out screen is preferably pulled further out of the base body in the pull-out position than in the operating position. By triggering the release process according to the invention takes place only in the pull-out position, an additional safeguard against accidental dropping of the filter or elements is given. In addition, the removal of the filter is particularly simple in this embodiment, since the user in the simplest case, only the drawer extract relative to the operating position has to pull forward and then the filter element or by loosening the connection, which consists of the pivot bearing, can solve. If the pull-out drawer is brought into the pull-out position, depending on the design of the release device, either an actuating element can be actuated or the filter element is displaced relative to the base body such that the filter element no longer rests on the guide.

At least one filter element is provided on the extractor hood according to the invention. The filter element can be for example an expanded metal filter with aluminum frame or with a stainless steel cover layer. However, so-called edge suction filters can also be used. That or the Filter elements are preferably attached directly to the screen. This means that at least a part of the pivot bearing and the at least one locking means are provided on the filter element. For filter replacement, the entire filter element with the part of the pivot bearing and the locking means is removed from the screen.

Alternatively, it is also possible according to an embodiment that the filter element comprises a frame on which at least a part of the pivot bearing is provided. In the frame, the filter material, which may for example be expanded metal and may be present in the form of a filter cartridge, may be introduced. To change the filter can be left on the hood in this embodiment, the frame and only the filter material after pivoting of the filter element are removed from the frame. The filter material may in this case be placed on the frame or inserted into it. On the frame, in addition to the part of the pivot bearing, which may for example be a pin, also the at least one locking means, for example in the form of a latching nose or a magnet, may be provided.

According to one embodiment, the extractor hood has at least one damping means for damping the movement of the pivot bearing. The damping means may be a rotary damper, which may be provided directly on the pivot bearing, for example in a receptacle on the screen. Alternatively, however, the damping means may also comprise a lever structure in which, for example, damping elements in the form of springs may be provided. The lever structure engages the filter element at a distance from the pivot bearing. By providing a damping means, the pivoting of the filter element can be done safely and injury to the user can be prevented.

According to one embodiment, the release device at least partially releases filter elements held on two separate parts of the umbrella at least partially from the support. In particular, in a screen with pull-out drawer in this embodiment, both the filter elements on the main body of the screen and the filter element on the pullout drawer are released from the installed position.

The extractor hood according to the invention may represent a dining, in particular a Wandesse or Inselesse, a Zwischenbauhaube, a Flachschirmhaube or an extracting fair. In the case of a flat-screen hood and a pull-out counter, it is possible, in particular, to make use of the advantages created by releasing the lock by displacing the pull-out drawer.

• Figur 1: eine schematische Seitenansicht einer Dunstabzugshaube;
• Figur 2: eine schematische Seitenansicht einer Ausführungsform der erfindungsgemäßen Dunstabzugshaube in einer Betriebsstellung; und
• Figur 3: eine schematische Seitenansicht der Ausführungsform der erfindungsgemäßen Dunstabzugshaube in einer Auszugsstellung.

The invention will be further described below with reference to the accompanying drawings. Show it:

• FIG. 1 a schematic side view of an extractor hood;
• FIG. 2 a schematic side view of an embodiment of the extractor hood according to the invention in an operating position; and
• FIG. 3 : A schematic side view of the embodiment of the extractor hood according to the invention in a pull-out position.

In FIG. 1 an embodiment of an extractor hood 1 is shown schematically. The extractor hood 1 consists of a housing 10, which is also referred to as a fireplace in a dining, and a subsequent below the housing 10 screen 11. At the top, the housing 10 has an air outlet 15. Housing 10 houses a fan (not shown). In the screen 11, a filter element 12 is accommodated. In the FIG. 1 only one filter element 12 is visible. But it can be provided 12 juxtaposed several filter element. The filter element 12 is in the installed position in the horizontal. For better visibility, the elements arranged in the screen 11 are not shown in dashed lines. The filter element 12 is attached at its rear end via a pivot bearing 120 to the screen 11. At the front, the filter element 12 is fixed to the screen 11 by an upwardly directed locking means 121.

In the illustrated extractor hood, a control element 13 is provided in the front of the screen 11, via which a release device 14 can be actuated. The operating element 13 is considered part of the release device 14. By pressing the control element 13, which may represent a button, for example, can on the Loosening device 14, the connection of the filter element 12 with the screen 11, which consists of the locking means 121, are released. The release device 14 may represent a mechanical connection between the control element 13 and the locking means 121 in the installation position of the filter element 12 in the illustrated hood. If the locking means 121, for example, a detent, so the release device 14 can act on the locking lug until it comes out of engagement with a locking recess in the screen 11.

By loosening the lock, the filter element 12 in the in FIG. 1 also brought removal position shown. For this purpose, the filter element 12 is pivoted about the pivot bearing 120 down. Preferably, the filter element 12 is held in this removal position, for example by a stop on the pivot bearing 120. The movement of the filter element 12 from the installation position to the removal position may be damped by one or more damping means (not shown). In the removal position, the user can easily access the filter element 12 and remove it from the screen 11 by releasing the connection, which consists of the pivot bearing 120, for example by levering.

In the FIGS. 2 and 3 an embodiment of the extractor hood 1 according to the invention is shown.

The embodiment differs from the extractor hood FIG. 1 in that the screen 11 is designed in several parts. The shield 11 in the second embodiment consists of a base body 110 which is fixedly connected to the housing 10 and a drawer 111 which is slidably mounted on the base body 110. The drawer 111 can be pulled out in particular in relation to the main body 110 to the front. In FIG. 2 an operating position of the drawer 111 is shown. In this position, the drawer 111 is pulled out. However, the rear end of the drawer 111 is still in the main body 110 of the screen 11. The drawer 111 is guided in the base body 110 via a guide, which in particular includes lateral supports. In the illustrated embodiment, in each case a filter element 12 is indicated in the main body 110 and in the drawer 111. However, they are Preferably, both in the base body 110 and in the drawer 111 a plurality of filter element 12 arranged side by side.

In the operating position of the drawer 111, the filter elements 12 are in the installed position, that is, are held horizontally in the screen 11. The holder of the filter element 12 corresponds with respect to the FIG. 1 described holder via pivot bearing 120 and locking 121st

If, in the second embodiment, the drawer 111 is pulled out beyond the operating position to the front, the drawer 111 is in the pull-out position. This is in FIG. 3 shown. In this pull-out position, the filter element 12 is released from its holder by the release device 14, which is formed in this case by the guidance of the drawer 111 in the Grundköper 110 or provided thereon.

According to the invention, at least the filter element 12 or the filter elements 12 in the pull-out drawer 111 have no locking means 121 on the front side. In this case, the filter element 12 can be held in the pull-out drawer 111 by guiding the pull-out drawer 111 in the base body 110 and this serves as a locking means. In the embodiment according to the invention, the lock is released by the mere displacement of the drawer 111 in the pull-out position. Since the guide on the base body 110, the filter element 12 is no longer supported in this position, the filter element 12 pivots in the downwardly pivoted removal position.

The invention is not limited to the illustrated embodiments. In particular, individual features of one of the embodiments shown can be combined with features of another embodiment or vice versa.

The locking means is not limited to the embodiments shown. For example, a so-called push-to-open closure system can be used as a locking means. By tapping against the filter element from the bottom of the push-to-open closure is released and the filter element is pivoted downwards.

With the present invention, it is possible to enable a filter removal which is easy to perform on the one hand and on the other requires no elaborate construction of the hood.

The present invention will be described again with reference to some possible embodiments. The filter element, which is also referred to as filter or grease filter, can be folded over a defined pivot point. The pivot point can already be integrated into existing parts of the hood, which is also referred to as the device, or consist of separate components that are attached to the hood or to the filter. After the folding movement, the filter can be removed from the extractor hood. By an additional damping element in the fulcrum, the Abklappbewegung can be damped. The damping element may for example be a rotary damper.

The Abklappbewegung is initiated after a catch of the filter has been lifted, which holds the filter in the device in its installed position. It is for example possible for this purpose to provide a separate button on the device, which can be included in an already provided on the device control panel or represents a separate button to the control panel.

With the present invention, a filter change in a cooker hood with an extendable drawer can be simplified. Such cooker hoods are, for example, flat-screen hoods or wall meals with pull-out drawer, which are also referred to as extract meals.

Here, the drawer extract the hood after releasing a Verschiebarretierung be extended beyond their installation position in the operating state. This triggers the folding mechanism for the grease filter, whereby they can be pivoted downwards via a pivot point and subsequently removed. By means of damping elements in the pivot point of the filters, for example rotational dampers, the pivotal movement of the filters can be damped.

The filters can either be released from their installation position immediately after the drawer is pulled out of the installation position into the pull-out position, or they initially remain in their installed position and are individually solved by an additional process of releasing the lock from its installation position, for example by releasing a push-to-open element.

The filter element can be designed according to the invention handleless. As a result, the filters design technology can be better matched to the overall device.

The present invention has a number of advantages. On the one hand, the invention can be used for all types of grease filters. Furthermore, the hood can have different designs. Furthermore, a customer-friendly filter removal is created by defined positions for removing the filter. Furthermore, a fast and understandable filter removal and filter assembly is possible. Finally, a visually appealing and adapted to the device filter design can be made possible by the possibility of a handle-less design of the filter.

LIST OF REFERENCE NUMBERS

1

Hood

10

casing

11

umbrella

110

body

111

excerpt drawer

12

filter element

120

pivot bearing

121

locking

13

operating element

14

release device

15

air outlet

Claims (5)

1. Range extractor hood, which has a screen (11) and at least one filter element (12), that is retained on the screen (11) by means of at least one pivot bearing (120) and at least one locking means (121),

   - wherein the screen (11) has a framework (110) and the framework (110) is permanently joined to the housing (10) of the range extractor hood (1),

   - wherein the range extractor hood (1) includes a locking device (14) for, at least partially, releasing the retainer, effected by the at least one pivot bearing (120) and at least one locking means (121), of the filter element (12), and the releasing device (14) is located on the screen (11) of the range extractor hood (1),

   characterised in that

   - the screen (11) consists of a framework (110) and a pull-out drawer (111) which is attached to the framework (110) in a sliding manner and is guided in the framework (110) via a guide,

   - the filter element (12) is retained in the pull-out drawer (111) by the guide of the pull-out drawer (111),

   - the guide of the pull-out drawer acts as the locking means,

   - the locking action is cancelled merely by the sliding of the pull-out drawer (111) into a withdrawn position, in which the pull-out drawer (111) is withdrawn forwards beyond an operating position of the pull-out drawer (111), which is a withdrawn position of the pull-out drawer (111).
2. Range extractor hood according to claim 1, characterised in that the filter element (12) includes a frame on which at least one part of the pivot bearing (120) is provided.
3. Range extractor hood according to one of claims 1 or 2, characterised in that the range extractor hood (1) has at least one damping means for damping the motion of the pivot bearing (120).
4. Range extractor hood according to one of claims 1 to 3, characterised in that the releasing device (14) releases at least two filter elements (12), which are retained on two separate parts of the screen (11), at least partially from the retainer.
5. Range extractor hood according to one of claims 1 to 4, characterised in that the range extractor hood is a slimline cooker hood or an extractor cooker hood.

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