EP1296096A2 - Mobile fumes evacuation device - Google Patents

Abstract

The extractor column (3) contains the fan (8) and outlet filter (16) and may be positioned to extract cooking fumes from a pot (7) through an air intake filter (10). The air intake housing (4) is pivotable about an axis (5) to raise the air intake housing to a higher angle for other applications.

Description

The present invention relates to a mobile, portable extractor device with a Stand on which an exhaust hood is attached.

Such mobile extractor devices can be in the area of a single hotplate in a small kitchen or at a table grill or one used at the table Raclette device or the like can be used.

A mobile extractor device is known from DE 77 36 750 U1. This Extractor hood device has a frame with a foot section and a vertical one Post section. An extractor hood is height-adjustable on the stand section attached, on its underside an air inlet opening provided with a filter and has an air outlet opening on the opposite top. In the hood is a fan is arranged between the outlet opening and the filter.

DE 79 24 997 U1 shows a portable vapor extractor with a standing housing, on the side of which a stand is arranged, at the upper end section of which Suction hood with integrated filter is attached. In the lower platform of the Stand housing, a fan is installed, which over the exhaust hood and as a pipe trained side stand sucks air through the exhaust hood and jacket-shaped around a hotplate on the platform to the exhaust hood again ausfördert.

FR 2 761 620-A1 shows another movable suction device for installation a dining table. The suction device has a platform and a stand having frame on which an exhaust hood is arranged. In the suction hood a fan is arranged, which sucks air on its underside through a filter and on blows out the top of the hood. The hood is arranged over a in the stand Linear unit adjustable in height.

The disadvantage of the movable suction hoods described above is their large size Storage space required when not in use. Furthermore, the height adjustment requires the Suction hood according to DE 77 36 750 U1 and FR 2 761 620-A1 a variety of Handles.

The object of the present invention is therefore to provide a mobile extractor device To make available, which offers extended possibilities of use.

This object is achieved by the features of patent claim 1. advantageous Refinements and developments of the invention result from the Dependent claims.

The mobile extractor device has a housing which has a stand which a suction hood is arranged, which is connected to the stand via a swivel joint connected is. Through this articulation of the suction hood on the stand, the Suction hood swung down towards the stand and upwards away from the stand be pivoted so that the suction height of the suction hood with a simple Rotary movement up or down to the desired height in a simple manner Way is adjustable. In this case, the fact that the suction not only in a horizontal position but also in an upward position can aspirate swiveled, oblique or even vertical position laterally. Vapors can also be extracted if the exhaust hood slants downwards is pivoted below.

If the extractor hood is not required, the exhaust hood becomes Stand folded down and thus a small amount of storage space when not in use the extractor device achieved.

The pivoting of the suction hood also offers the advantage that the suction hood for better access to a pan or under the suction hood briefly swivel away the food in this pot and then in again to pivot the desired suction position back without the pot or the Suction hood must be moved.

In an advantageous embodiment of the invention, the suction hood can be one preferred angle α of ± 90 ° are pivoted, advantageously Preselected swivel positions between the suction hood and the stand via one the swivel clamping device and / or a plurality of locking points having locking device can be maintained. Through the clamping device and / or a locking device between the stand and the suction hood can set position of the suction hood can be maintained safely and reliably. I

In a further advantageous embodiment of the invention, the housing has a plate-like foot, which is arranged at the lower end portion of the stand, so that the plate-like foot below the suction hood in the horizontal position is arranged to give the device a stable stand. Furthermore, the plate-like foot for holding a vessel, such as a pot, a bowl, one Pan or the like.

In a further advantageous embodiment of the invention, the plate-like foot is over one additional hinge articulated to the lower end portion of the stand, one Axis of rotation of the additional swivel joint preferably parallel to the axis of rotation of the Swivel joint is arranged between the suction hood and stand. This makes it up advantageously possible, both the suction hood and the plate-like foot to To fold the stand, the device being stored very space-saving can.

In an advantageous embodiment of the invention, the plate-like foot is in the horizontal position lockable to ensure safe operation of the device guarantee.

In an advantageous embodiment of the invention is in the plate-like foot Heating device provided, the heating device preferably as an electrical Heating plate, such as a ceramic hob or as a fuel-operated burner is trained. The heating device can be integrated in the plate-like foot or can be placed on the plate-like foot as a separate heating device. This is it possible on the mobile extractor device not only the haze from already cooked dishes, but dishes directly on the extractor device either to keep warm and / or to heat or to cook or to fry or to grill etc.

In an advantageous embodiment of the invention there is a suction opening of the suction hood provided with a first filter, which mainly grease and condensate from the draws in ambient air.

In an advantageous embodiment of the invention, a fan is preferably in the stator arranged, the air sucked in via the first filter via a in the swivel joint arranged rotary union via a channel formed in the stand for Fan flows and downstream of the fan via a trained in the stator Outlet opening exits. The arrangement of the fan in the stand is a achieved advantageous weight distribution with a low center of gravity, so that Extractor hood has a secure footing.

In a further advantageous embodiment of the invention, a is in the outlet opening second filter arranged to remove odor. Through this additional Arrangement of a second filter for separating odor in addition to the first filter The extractor device is excellent for separating grease and condensate suitable for air recirculation.

In an advantageous embodiment, however, the air can also be supplied via an external line be removed, whereby the use of a second filter for separating Odor can be dispensed with.

In an advantageous embodiment of the invention, the delivery rate of the fan preferably variably set via the speed of the fan by an actuator. This makes it possible to adjust the amount of suction depending on the vapor produced adjust.

In a further advantageous embodiment of the invention, a second suction opening is in the Upper portion of the stand arranged with the channel formed in the stand is connected and preferably with a third filter for separating fat and Condensate is provided. In this way, the suction and filter surface advantageously be enlarged.

In a further advantageous embodiment of the invention is in the housing, preferably in plate-like foot a voltage source, such as a battery, a rechargeable battery or a fuel cell to power the fan and / or Heating device provided. As a result, the extractor device can be completely can be operated independently of a network and can therefore be used anywhere. As an alternative or in addition to a voltage source provided in the housing, the Power supply for the fan and / or the heating device via a mains cable respectively. This allows the extractor device to be used anywhere come.

In an advantageous embodiment of the invention branches from the pressure side of the fan a secondary channel, which is in the housing up to one on the peripheral edge of the Suction hood preferably on the front edge facing away from the stand, trained slot-like opening extends. With this arrangement, a Sheath flow generated, which works according to the Coanda effect, and the vapors to the suction hood.

In a particularly advantageous embodiment of the invention is between one Inflow opening of the secondary channel and the outlet opening a valve mechanism provided with which the volume flow downstream of the fan is variable can be divided into the inflow opening of the secondary duct and the outlet opening, wherein in one adjustment of the valve mechanism, the entire volume flow of the inflow opening of the secondary channel and in a different end position of the valve mechanism the whole Volume flow can be fed to the outlet opening. In this way it is possible to adapt the suction to the circumstances.

In an advantageous embodiment of the invention, the first and / or the third filter designed as a multi-layer cassette filter with a layer of filter fleece on is provided on both sides with a metallic cover layer. Such a thing Filter element has a certain storage capacity for condensed water, being a Dripping of the condensed water is avoided. So the condition of the filter can be observed is the first and / or the third filter with an integrated Indicator element equipped.

Fig. 1

eine teilweise geschnittene Seitenansicht der mobilen Dunstabzugsvorrichtung, bei der sich eine Absaughaube in der normalen, horizontalen Stellung befindet;

Fig. 2

eine teilweise geschnittene Seitenansicht der mobilen Dunstabzugsvorrichtung nach Fig. 1, bei der sich die Absaughaube in einer schräg nach oben geklappten Stellung befindet;

Fig. 3

eine teilweise geschnittene Seitenansicht der Dunstabzugsvorrichtung nach Fig. 1, bei der der Verlauf der Luftströme dargestellt ist;

Fig. 4

eine teilweise geschnittene Seitenansicht einer Abwandlung der Dunstabzugsvorrichtung nach Fig. 1, die mit einem Zusatzfilter versehen ist;

Fig. 5

eine teilweise geschnittene Seitenansicht der Dunstabzugsvorrichtung nach Fig. 1 in zusammengeklappter Stellung;

Fig. 6

eine teilweise geschnittene Seitenansicht der in Fig. 1 dargestellten Dunstabzugsvorrichtung in abgewandelter Ausführung;

Fig. 7

eine teilweise geschnittene Seitenansicht der in Fig. 1 dargestellten Dunstabzugsvorrichtung mit einer Absaugluftrückführung nach dem Coanda-Effekt;

Fig. 8

eine Schrägansicht eines in der Dunstabzugsvorrichtung nach Fig. 1 verwendeten Filterelements;

Fig. 9

eine Schnittansicht des in Fig. 8 dargestellten Filterelements.

Further details, features and advantages of the invention result from the following description of an embodiment of a mobile extractor device according to the invention with reference to the drawings. In it show:

Fig. 1

a partially sectioned side view of the mobile extractor device, in which a suction hood is in the normal, horizontal position;

Fig. 2

a partially sectioned side view of the mobile extractor device of Figure 1, in which the exhaust hood is in an obliquely folded up position.

Fig. 3

a partially sectioned side view of the extractor device of Figure 1, in which the course of the air flows is shown.

Fig. 4

a partially sectioned side view of a modification of the extractor device of Figure 1, which is provided with an additional filter.

Fig. 5

a partially sectioned side view of the extractor device of Figure 1 in the folded position.

Fig. 6

a partially sectioned side view of the extractor device shown in Figure 1 in a modified version.

Fig. 7

a partially sectioned side view of the extractor device shown in Figure 1 with an exhaust air return after the Coanda effect.

Fig. 8

an oblique view of a filter element used in the extractor device of Figure 1;

Fig. 9

a sectional view of the filter element shown in Fig. 8.

The mobile, portable extractor device shown in Fig. 1 has a housing 1, the one plate-like foot 2, one arranged laterally on the plate-like foot 2 vertical stand 3 and one arranged at the upper end portion of the stand 3 Suction hood 4 has. The suction hood 4 has a horizontal axis of rotation 5 having swivel joint 6 articulated on the stand 3. In the normal position the suction hood 4 extends horizontally over the plate-like base 2, which is prepared to carry a saucepan, bowl or similar receptacle to hold food. The underside of the suction hood 4 is a large-area suction opening 9 with a first filter 10 is provided for the separation of fat and condensate.

In the stand 3, a fan 8 or fan is housed, which on its suction side a channel 12 arranged in the stand 3, one arranged on the swivel joint 6 Rotary union 13 (only shown symbolically) with the one in the extraction hood 4 arranged suction opening 9 is connected. The back of the stand 3 (which the plate-like foot 2 facing away) has an outlet opening 14, which in a Stand 3 arranged outlet duct 15 with the positive pressure side of the fan 11 connected is. The outlet opening 14 is provided with a second filter 16 for separating Smells and the like. The outlet opening 14 can be used for connection a hose line (not shown) be prepared, through which the extracted air in can be derived from another room or outside. Will be at the outlet opening 14 such a hose line attached, the second filter 16 for Separation of smells can be avoided.

The stand 3 is rectangular in cross section and extends over the entire width of the suction hood 4, so that the front wall of the stand 3 rising vapors and vapors leads to the exhaust hood 4.

The delivery rate sucked off by the fan 8 is above a speed variable drive adjustable. The delivery rate is set via an on Actuator 17 arranged in housing 1.

The plate-like foot 2 is used to hold a hot pot, the Installation of the mobile extractor hood device, e.g. a dining table Protects heat. In the plate-like foot 2, a heater (only schematically shown) integrated or alternatively a separate heating device the plate-like foot 2 are placed (not shown). A heater can as an electric hot plate, like a ceramic hob or as a fuel operated burner.

2, the suction hood 4 is at an angle α with respect to that in FIG. 1 illustrated horizontal position of the suction hood 4 upwards about the axis of rotation 5 pivoted. With the pivoting of the suction hood 4, it is possible Set the suction device to different heights. It is also possible for better accessibility to a pot 7 positioned on the plate-like foot 2 or to the food in the pot 7 the suction hood 4 on the short side swing away and then back into the desired suction position zurückzuschwenken.

3 is the course of the air flows of the mobile shown in Fig. 1 Extractor hood shown. A haze laden from pot 7 Airflow A is sucked into the suction hood 4 via the first filter 10. Doing so Grease and condensate contained in the air flow stream A are separated in the first filter 10. The filtered air flow B continues to flow from the suction hood 4 via that in the swivel joint 6 arranged rotary union 13 and the channel 12 formed in the stator 3 for Fan 8. On the pressure side of the fan 8, the air flow C over the Outlet channel 15 and the second filter 16 located in the outlet opening 14, which in FIG is able to secrete odors, conveyed out of the housing 1.

According to FIG. 4, the mobile extractor device shown in FIG. 1 can be equipped with a third filter 18 provided on the inside or plate-like foot 2 facing side at the upper end portion of the stand 3 obliquely forward downwards is inclined. This third filter 18 is located in a second suction opening 19, which is connected to the channel 12. The third filter 18 serves as well as the first Filter 10 for separating grease and condensate.

5 is a preferred embodiment of the mobile shown in Fig. 1 Extractor hood shown. That between the suction hood 4 and the stand 3 provided hinge 6 has, starting from the horizontal shown in Fig. 1 Position of the suction hood a swiveling range α of ± 90 ° into an upper one vertical position and in a lower vertical position, wherein in Fig. 5 the lower vertical position, i.e. the suction hood 4 pivoted toward the stand 2, shown is. The preselected swivel positions between the suction hood 4 and the stand 3 are via a clamping device (not shown) that the rotational movement of the Swivel 6 prevents, maintain. Alternatively or in addition to Clamping device can also have a plurality of locking points Locking device (not shown) between the suction hood 4 and the stand 3 be provided.

The plate-like foot 2 is connected to the stand 3 via an additional swivel joint 20 connected. An axis of rotation 21 of the additional swivel joint 20 is parallel to the Axis of rotation 21 of the swivel 6 is arranged. The plate-like foot 2 is about additional hinge 20, starting from the horizontal position (according to FIG. 1) the angle β of preferably 90 ° in a folded position (FIG. 5) towards the stand 3 pivoted. To ensure that the extractor hood stands securely, the plate-like foot 2 can be locked in the horizontal position (according to FIG. 1). If the Extractor hood device is not required, it can, as shown in Fig. 5, can be folded up and therefore requires little storage space.

6 shows an embodiment of the extractor device according to FIG. 1, at of the rechargeable batteries 11 are arranged in the plate-like foot 2, which for Power supply to the fan 8 serve. Alternatively, a fuel cell can also be used Power supply can be provided. Furthermore, the power supply for the Fan 8 and also for a possibly provided heating device via a mains cable (not shown). The power cord can be plugged in (not shown) are connected to the housing 1. Alternatively, one Cable storage device (not shown), like a roller integrated in the housing 1 his.

According to FIG. 7, the extractor device shown in FIG. 1 has a special one Provide air flow. From the pressure side of the fan 8, i.e. in the area of Fan room, branches off a secondary duct 27, which extends through the stator 3 to one Front edge 22 of the suction hood 4 extends and extends there through a slot-like opening 23 opens to the surroundings. The slot-like opening 23 extends over the entire Width of the suction hood 4 and opens when the suction hood 4 in the 7 is in the horizontal position, downward. Between one Inflow opening 24 of the secondary channel 27 and the outlet opening 14 is a Valve mechanism 25 is provided with which in relation to the position of the fan 8 downstream volume flow variable to the inflow opening 24 of the secondary channel 27 and the outlet opening 14 can be divided.

The valve mechanism 25 has one between the inflow opening 24 of the secondary channel 27 and the outlet opening 14 reciprocating flap 26. In an end position the flap 26 opens the outlet opening 14 completely and closes the Inflow opening 24 so that the entire air flow flowing downstream of the fan 8 C1 reaches the surroundings via the outlet opening 14. In a different end position the flap 26 closes the flap 26 and opens the outlet Inflow opening 24 to the secondary duct 27, so that the entire downstream of the fan 8 flowing air flow C2 via the secondary duct 27 and via the slot-like opening 23 flows. The flap 26 is in an intermediate position between the Inflow opening 24 and the outlet opening 14, so the downstream of the fan 8 flowing air flow according to the position of the flap 26 on the outlet opening 14 and the slot-like opening 23 are distributed.

The air flow C2 exiting through the slot-like opening 23 creates an air curtain, of the rising vapors from the food located on the plate-like foot 2 Suction opening 9 of the suction hood 4 steers out, so that the rising haze and Steam can be extracted almost completely via the first filter 10. This Generating an air curtain according to the so-called Coanda effect is also advantageous can be used when the suction hood 4 is at an angle α, as for example in FIG. 2 is shown, is folded up.

In the present embodiment, the slit-like opening 23 extends across the width the front edge 22 of the suction hood 4. However, the slit-like is also possible Opening 23 additionally over the side edges of the suction hood 4 or over the entire To extend circumference of the suction hood 4, in the latter case the circumferential section can be recessed adjacent to the stand 3, since in the area of the stand 3 rising vapors are conducted by means of the stator 3.

8, a filter cassette 28 is shown, which acts as a filter unit for the first filter 10 and the third filter 18 can be used particularly advantageously. Regarding the detailed description of this filter cassette 28 is on DE 199 622 53 A1 referenced, which should be part of the present description. The filter cassette 28 has a multilayer filter 29 which is surrounded by a frame 30. in the multilayer filter 29 is an indicator element 31 for displaying the degree of saturation of the multilayer filter 29 integrated.

9, the structure of the multilayer filter 29 is shown in more detail, the multi-layer filter 29 has a layer of filter fleece 32 with on both sides a metallic cover layer 33 is provided. This filter structure is special advantageous for separating grease and condensate.

Claims (20)

Mobile extractor device for food with a housing (1), which has a stand (3) on which a suction hood (4) is arranged,
characterized in that
the suction hood (4) is connected to the stand (3) via a swivel joint (6) having a horizontal axis of rotation (5). Mobile extractor device according to claim 1, characterized in that, starting from a horizontal position , the suction hood (4) can be pivoted continuously by a preferred angle α of ± 90 ° into an upper vertical position and a lower vertical position. Mobile extractor device according to Claim 1 or 2, characterized in that a clamping device which clamps the swivel joint (6) and / or a latching device which has a plurality of latching points is provided on the swivel joint in order to preselect the swivel position between the suction hood (4) and the stand (3). maintain. Mobile extractor device according to one of the preceding claims 1 to 3, characterized in that the housing (1) has a plate-like foot (2) which is arranged at the lower end portion of the stand (3), the plate-like foot (2) preferably below the in the horizontal position of the suction hood (4) is arranged to receive a vessel. Mobile extractor device according to claim 4, characterized in that the plate-like foot (2) is articulated via an additional swivel joint (20) on the lower end section of the stand (3), an axis of rotation (21) of the additional swivel joint (20) preferably parallel to the axis of rotation (5) of the swivel joint (6) between the suction hood (4) and stand (3) is arranged. Mobile extractor device according to Claim 5, characterized in that the plate-like foot (2) can be pivoted via the additional swivel joint (20) from a horizontal position by an angle β of preferably 90 ° into a folded position towards the stand (3), wherein the swiveling, plate-like foot (2) can be locked in the horizontal position. Mobile extractor device according to one of the preceding claims 4 to 6, characterized in that a heating device is provided in the plate-like base (2), the heating device preferably being designed as an electric heating plate, such as a ceramic hob, or as a burner operated with fuel. Mobile extractor device according to claim 7, characterized in that the heating device is integrated in the plate-like foot (2) or can be placed on the foot as a separate heating device. Mobile extractor device according to one of the preceding claims 1 to 8, characterized in that the suction hood (4) has a suction opening (9) in the horizontal position on the underside, which is provided with a first filter (10), which preferably grease and condensate separates from the aspirated ambient air. Mobile extractor device according to one of the preceding claims 1 to 9, characterized in that a fan (8) is provided, which is preferably arranged in the stand (3), the air sucked in via the suction opening (9) via an in the swivel joint (6) The rotary union arranged flows through a duct (12) in the stator (3) to the fan (8) and exits downstream of the fan (8) via an outlet opening (14) in the stator (3). Mobile extractor device according to claim 9, characterized in that a second filter (16) for separating odor is arranged in the outlet opening (14). Mobile extractor device according to one of the preceding claims 10 to 11, characterized in that the outlet opening (14) can be connected to an external line in order to discharge the exhaust air. Mobile extractor device according to claim 10, characterized in that the delivery rate of the fan (8) is preferably variably adjustable via the speed of the fan (8) by an actuator (17). Mobile extractor device according to one of the preceding claims 1 to 13, characterized in that a second suction opening (19) is arranged in the upper section of the stand (3), which is connected to the channel (12) formed in the stand (3) and which with a third filter (18) is preferably provided for separating grease and condensate. Mobile extractor device according to one of the preceding claims 1 to 14, characterized in that in the housing (1), preferably in the plate-like base (2), a voltage source, such as a battery, a rechargeable accumulator or a fuel cell for supplying power to the fan (8) and / or the heating device is provided, and / or
that the power supply for the fan (8) and / or the heating device takes place via a mains cable. Mobile extractor device according to claim 15, characterized in that the power cable can be separated from the housing (1) via a plug connection or in or on the housing (1) a cable storage device, such as a roller, is provided. Mobile extractor device according to one of the preceding claims 1 to 16, characterized in that a secondary duct (27) branches off from the pressure side of the fan (8), which preferably branches in the housing (1) up to one on the peripheral edge of the extractor hood (4) on the front edge (22) facing away from the stand (3), formed slot-like opening (23). Mobile extractor device according to claim 17, characterized in that a valve mechanism (25) is provided between an inflow opening (24) of the secondary duct (27) and the outlet opening (14), with which the volume flow downstream of the fan (8) variable to the inflow opening (24) of the secondary channel (27) and the outlet opening (14) can be split, the entire volume flow of the inflow opening (24) of the secondary channel (27) in one end position of the valve mechanism (25) and the valve mechanism (25) in another end position entire volume flow can be fed to the outlet opening (14). Mobile extractor device according to claim 9 and / or 14, characterized in that the first and / or the third filter (10, 18) is designed as a multi-layer cassette filter, in which a layer of filter fleece is provided on both sides with a metallic cover layer Mobile extractor device according to one of claims 9, 14 or 19, characterized in that the first and / or the third filter (10, 18) has an integrated indicator element for displaying the degree of saturation of the filter.

Images