EP2796794B1 - Extractor hood - Google Patents

Description

The present invention relates to an extractor hood, in particular a flat-screen hood.
Extractor hoods are used to extract the Wrasens on a household appliance such as a kitchen stove. So-called flat-screen hoods have a housing fastened to a building wall and a hood or vapor shield which can be moved relative to the housing. During operation of such a flat-screen hood, the vapor shield is displaced from a retracted to an extended state with respect to the housing of the extractor hood. Here, the Wrasenschirm is moved like a drawer along guide rails relative to the housing.
To displace the vapor shield between its retracted and extended states, it is gripped by hand and optionally pushed into or pulled out of the housing of the extractor hood. Alternatively, a motor drive system may be provided for displacing the vapor shield.

The US 2010/0200576 A1 is considered as the closest prior art and describes a microwave oven with a spring-driven extractor hood, which is formed according to the preamble of claim 1. The EP 2 541 154 A1 describes an extractor hood for installation in a wall unit with a blower compartment for receiving a fan unit, at least one fan unit upstream arranged filter element and a movably mounted vapor shield, which is concealed in a non-operating position mounted in the installation position hood in the wall unit and in its operating position on the bottom the upper cabinet is designed to be removable.
The EP 2 233 842 A2 describes a drive arrangement for a viewing screen of a fume extraction device, via which the viewing screen can be moved relative to a housing of the extractor device and which has at least one spring element, wherein the drive arrangement comprises a lever unit, which consists of at least a lever and is attached to the viewing screen and wherein the spring element for actuating the lever unit is connected to one end of at least one of the lever of the lever unit.

The EP 2 581 670 A1 describes an extractor hood, which has a fume hood housing and a pull-out against the extractor housing pull-out screen, wherein the hood has at least one scroll spring to support the displacement of the pull-out screen whose spring force points in the direction of the roller of the scroll.

The WO 02/093079 A1 describes a spring-driven extraction device for a kitchen appliance.

The EP 2 581 669 A1 shows a household device having at least one household appliance and at least one height adjustment module for movably attaching at least a portion of the household appliance to a receiving device, wherein the height adjustment module for providing the actuating force comprises at least one spring element which constitutes a scroll spring.

The DE 20 2005 004 307 U1 describes an island range hood with a suction arranged in a suction port, a chimney section and a suspension device, wherein the chimney portion with a movement from a normal position of the hanger away in a lower position against a movement of the counteracting force accumulator is displaceable and locked in at least one parking position.

The EP 2 554 916 A2 shows an extractor hood, which has at least one fan box and at least one facing part for covering at least a part of a room in the region of the fan box, wherein the facing part is attached via a fastening device on the hood relative to the fan box of the hood displaceable.

Against this background, an object of the present invention is to provide an improved extractor hood.

Accordingly, an extractor hood with a Wrasenschirm and a spring-driven extraction device is proposed. The extraction device is adapted to displace the vapor shield from a retracted state to an extended state, wherein the extraction device comprises a spring device which biases the vapor shield in the direction of the extended state, wherein the extraction device has a guide rail and a spring guide device displaceable along the guide rail and wherein the spring guide device is coupled by means of the spring device with the guide rail. The extractor hood is in particular a flat screen hood.

The pull-out device is preferably coupled to a housing of the extractor hood and to the canopy. The Wrasenschirm can be like a drawer slide into the housing and pull out of this again. The fact that the pullout device is spring-driven, can be dispensed with a motor drive. As a result, a simple and inexpensive construction of the hood is achieved.

The extraction device has a spring device which biases the vapor shield in the direction of the extended state.

The vapor shield is inserted against the spring force of the spring device in the housing. The spring device is tensioned. By using the spring device, a constant insertion force is achieved over the entire insertion path of the vapor shield.

According to a further embodiment, the spring device is relaxed in the extended state of the vapor shield and stretched in the retracted state of the vapor shield.

Characterized in that the spring device is tensioned in the retracted state, the vapor shield can be displaced by the spring force of the spring means of the retracted to the extended state.

According to a further embodiment, the extraction device has a damping device which damps a movement of the vapor shield when displacing it from the retracted state to the extended state.

In this way, a constant pull-out speed of the vapor shield can be achieved over its entire range of motion. The damping device is preferably arranged in a spring guiding device of the pull-out device. The damping device preferably has a toothing which can engage with a toothing provided on a guide rail of the pull-out device. The damping parameters of the damping device can be adjustable.

According to a further embodiment, the damping device is a rotational damping device.

The damping device may have a fastening section and a section rotatable relative to the fastening section. The rotatable section preferably has a toothing. The rotatable portion may be operatively connected to the mounting portion via a damping fluid such as an oil. A rotational movement of the rotatable portion relative to the mounting portion is damped by the damping fluid.

According to a further embodiment, the extractor hood has a releasable locking device which locks the vapor shield in the retracted state in a housing of the extractor hood.

The locking device preferably has a first locking element which is connected to the housing of the extractor hood, and a second locking element which is connected to the vapor shield on. By manual insertion of the vapor shield in a direction of feed from the extended state to the retracted state, the spring device is tensioned. By engaging the second locking element in the first locking element of the vapor shield is locked in the retracted state in the housing of the hood.

According to a further embodiment, the locking device is adapted to unlock the vapor shield by displacing the same in the retracted state in a feed direction.

By a tapping of the vapor shield, that is, by a slight displacement of the same in the feed direction, the locking device is unlocked and the second locking element releases from the first locking element. Characterized in that the spring device is biased in the retracted state, this relaxes and moves the vapor shield from its retracted state to its extended state.

The pull-out device has a guide rail and a spring guide device displaceable along the guide rail. The spring guiding device is coupled to the guide rail by means of the spring device.

The guide rail preferably has a U-shape in cross-section. The spring guide device is in engagement with the guide rail and is displaceable along it. For receiving the spring device, the spring guide device may comprise a spring cage. The spring means may be connected to the guide rail via a receiving portion and operatively connected to the spring guide means via the spring cage.

According to a further embodiment, the spring guide device on Umgreifungsabschnitte, which engage around the guide rail at least in sections.

The spring guiding device preferably has a plurality of encompassing sections, in particular six encompassing sections. The Umgreifungsabschnitte lead the spring guide device along the guide rail when moving the same along the guide rail. The encompassing sections may surround at least sections of side sections of the guide rail.

According to a further embodiment, the spring device has a tab portion, which is received by a corresponding receiving portion of the guide rail and a scroll spring portion. The roll spring section is at least partially accommodated in a spring cage of the spring guide device.

The tab portion of the spring device is suspended in the receiving portion of the guide rail and is thereby positively connected thereto. The scroll spring portion is at least partially received in the spring cage. In the relaxed state of the spring device, the rolling spring section is preferably arranged completely in the spring cage. When moving the Wrasenschirms from the extended in the retracted state of the scroll spring portion is unwound and partially pulled out of the spring cage.

According to a further embodiment, the rolling spring portion is relaxed in a rolled-up state and stretched in a rolled-out state.

The use of a spring device with such a roll spring section allows a compact construction of the pull-out device. By means of the roll spring section, a constant insertion force can be achieved over the entire insertion path of the vapor shield. This increases the ease of use.

According to a further embodiment, the spring guiding device has a snap hook, which engages in a connecting element. The vapor shield is coupled via the connecting element with the spring guiding device.

The connecting element has a corresponding to the snap hook of the spring guide device breakthrough, in which engages the snap hook. This ensures a connection of the spring guide device with the connecting element. The connecting element may likewise have at least one snap hook, which engages in at least one recess provided on the vapor shield.

According to a further embodiment, the guide rail is connected via a mounting bracket with a housing of the extractor hood.

The mounting bracket can be mounted on the guide rail such that it can be mounted on either a left or a right edge portion of the vapor shield.

According to a further embodiment, the guide rail has at least one insertion foot, which engages positively in a corresponding opening of the fixing bracket.

Preferably, the guide rail on two insertion feet. The at least one insertion foot has a T-shape and is designed such that a flange thereof can be passed through a corresponding opening of the mounting bracket. The aperture preferably has an insertion section for insertion of the Insertion foot and a locking portion. By moving the guide rail relative to the mounting bracket, the flange of the at least one insertion foot engages behind the locking portion of the opening of the mounting bracket and is thus fixed to this. To secure the guide rail to the mounting bracket this can be bolted to the guide rail. The connecting angle preferably has two openings, one of which is provided for a left and one for a right-hand assembly of the pull-out device on the vapor shield.

According to a further embodiment, the extractor hood on two spring-driven extraction devices which are arranged on opposite sides of the vapor shield.

Preferably, each of the extraction devices has a damping device. Alternatively, only one of the extraction devices may have a damping device.

• Fig. 1 zeigt eine schematische Seitenansicht einer bevorzugten Ausgestaltung einer Dunstabzugshaube mit einem Wrasenschirm in einem eingezogenen Zustand;
• Fig. 2 zeigt eine schematische Seitenansicht der Dunstabzugshaube gemäß der Figur 1 mit dem Wrasenschirm in einem ausgezogenen Zustand;
• Fig. 3 zeigt eine schematische Aufsicht der Dunstabzugshaube mit dem Wrasenschirm im ausgezogenen Zustand gemäß der Figur 2;
• Fig. 4 zeigt eine schematische perspektivische Ansicht einer Führungsschiene einer Auszugseinrichtung der Dunstabzugshaube gemäß der Figur 1;
• Fig. 5 zeigt eine schematische perspektivische Ansicht eines Auszugssystems der Dunstabzugshaube gemäß der Figur 1;
• Fig. 6 zeigt eine weitere schematische perspektivische Ansicht der Auszugseinrichtung gemäß der Figur 5;
• Fig. 7 zeigt eine schematische perspektivische Ansicht einer Federführungseinrichtung der Auszugseinrichtung gemäß der Figur 5;
• Fig. 8 zeigt eine schematische perspektivische Ansicht einer Federeinrichtung der Auszugseinrichtung gemäß der Figur 5;
• Fig. 9 zeigt eine schematische perspektivische Ansicht einer Dämpfungseinrichtung der Auszugseinrichtung gemäß der Figur 5;
• Fig. 10 zeigt eine schematische perspektivische Ansicht eines Verbindungselements der Auszugseinrichtung gemäß der Figur 5;
• Fig. 11 zeigt eine schematische perspektivische Ansicht eines Befestigungswinkels der Auszugseinrichtung gemäß der Figur 5;
• Fig. 12 zeigt eine schematische perspektivische Ansicht einer Verriegelungseinrichtung der Auszugseinrichtung gemäß der Figur 5;
• Fig. 13 zeigt schematisch eine weitere perspektivische Ansicht der Auszugseinrichtung gemäß der Figur 5;
• Fig. 14 zeigt schematisch eine Aufsicht auf die Auszugseinrichtung gemäß der Figur 5 in einem eingezogenen Zustand; und
• Fig. 15 zeigt schematisch eine Aufsicht auf die Auszugseinrichtung gemäß der Figur 5 in einem ausgezogenen Zustand.

Further advantageous embodiments and aspects of the invention are the subject of the dependent claims and the embodiments of the invention described below. Furthermore, the invention will be explained in more detail by means of preferred embodiments with reference to the attached figures.

• Fig. 1 shows a schematic side view of a preferred embodiment of an extractor hood with a vapor shield in a retracted state;
• Fig. 2 shows a schematic side view of the hood according to the FIG. 1 with the vapor shield in an extended state;
• Fig. 3 shows a schematic plan view of the hood with the vapor shield in the extended state according to the FIG. 2 ;
• Fig. 4 shows a schematic perspective view of a guide rail of an extracting device of the hood according to the FIG. 1 ;
• Fig. 5 shows a schematic perspective view of an extract system of the hood according to the FIG. 1 ;
• Fig. 6 shows a further schematic perspective view of the extraction device according to the FIG. 5 ;
• Fig. 7 shows a schematic perspective view of a spring guide device of the extraction device according to the FIG. 5 ;
• Fig. 8 shows a schematic perspective view of a spring device of the extraction device according to the FIG. 5 ;
• Fig. 9 shows a schematic perspective view of a damping device of the extraction device according to the FIG. 5 ;
• Fig. 10 shows a schematic perspective view of a connecting element of the extraction device according to the FIG. 5 ;
• Fig. 11 shows a schematic perspective view of a mounting bracket of the extraction device according to the FIG. 5 ;
• Fig. 12 shows a schematic perspective view of a locking device of the extraction device according to the FIG. 5 ;
• Fig. 13 schematically shows a further perspective view of the extraction device according to the FIG. 5 ;
• Fig. 14 schematically shows a plan view of the pullout device according to the FIG. 5 in a retracted state; and
• Fig. 15 schematically shows a plan view of the pullout device according to the FIG. 5 in a solid state.

In the figures, the same or functionally identical elements have been given the same reference numerals, unless stated otherwise.

FIG. 1 shows an extractor hood 1, in particular a flat screen hood. The extractor hood 1 has a housing 2 and a vapor shield 3. The vapor shield 3 is designed as a drawer and is movable relative to the housing 2. The vapor shield 3 can according to FIG. 3 be pulled out of the housing 2 in a pull-out direction A or pushed into this in a feed direction E. The housing 2 is mounted, for example, on a building wall.

The extractor hood 1 has a spring-driven extraction device 4, which is adapted to the vapor shield 3 of a in FIG. 1 shown retracted state in the extension direction A in one in the Figures 2 and 3 to shift shown extended state. The extractor hood 1 preferably has two spring-driven extraction devices 4, which are arranged on mutually opposite sides of the vapor shield 3.

The pull-out devices 4 are according to FIG. 3 preferably each covered by a cover 5. The cover 5 is designed for example as a sheet metal bending component. In FIG. 3 the extractor hood 1 is shown with only one cover 5. The pull-out device 4 arranged on the right-hand side of the vapor shield 3 is shown without the mounted cover 5. An operating and / or display element 6 can be provided on the vapor shield 3. In the retracted state, the vapor shield 3 is retracted into the housing 2. In the extended state, the vapor shield 3 is pulled out of the housing 2.

The pull-out device 4 has a in the FIGS. 4 to 6 , to which reference is made at the same time, guide rail 7 shown on. The guide rail 7 has a U-shape in cross section with a base portion 8 and two side portions 9, 10. Each of the side sections 9, 10 has a first wall section 11 extending perpendicularly from the base section 8, a second wall section 12 extending parallel to the base section 8 and a third wall section extending perpendicularly from the second wall section 12 13 on. In the present case, perpendicular is preferably an angle of 90 ° ± 20 °, more preferably of 90 ° ± 10 °, even more preferably of 90 ° ± 5 °, even more preferably of 90 ° ± 1 °.

On the second side section 10, a toothing 14 projecting into an inner side of the U-shape of the guide rail 7 is provided. The toothing 14 has a length I ₁₄ . The length I ₁₄ is preferably smaller than a length I _{7 of} the guide rail 7. The toothing 14 starts at a first end section 15 and extends in the direction of a second end section 16 of the guide rail 7. The toothing 14 ends before the second end section 16.

On an underside 17 of the base section 8, the guide rail 7 has at least one insertion foot 18. Preferably, the guide rail 7 has two insertion feet 18, 19. Each end section 15, 16 of the guide rail 7 is assigned a slide-in foot 18, 19. The insert feet 18, 19 are each spaced from their associated end portions 15, 16 are arranged. The insert legs 18, 19 extend out of the bottom 17 and have a T-shape. Each slide-in foot 18, 19 has a flange 20 and a web 21. The web 21 connects the flange 20 with the bottom 17 of the guide rail. 7

At each end portion 15, 16 of the guide rail 7, an opening 22, 23 is provided in the base portion 8 respectively. The openings 22, 23 are preferably formed as bores. On the underside 17, a rectangular recess 24 which penetrates the base section 8 is preferably provided between the push-in feet 18, 19. The guide rail 7 has on the underside 17 also has a plate-shaped protrusion 25, in which the recess 24 hineinerstreckt sections.

At the second end portion 16, a receiving portion 26 is provided. The toothing 14 ends shortly before the receiving portion 26. The receiving portion 26 is disposed on an upper side 27 of the guide rail 7. The receiving portion 26 has a base portion 28 which connects the side portions 9, 10 with each other and is disposed within the U-shape of the guide rail 7. The receiving portion 26 extends beyond the upper side 27 of the guide rail 7 and has a rectangular groove 29 in the center. The groove 29 is formed such that two Wall sections 30, 31 of the receiving portion 26 extend beyond the top 27 addition. The groove 29 extends in a longitudinal direction of the guide rail 7. The groove 29 is inserted into a height of the upper side 27 in the receiving portion 26. Perpendicular to the groove 29, starting from the second end portion 16 of the guide rail 7, a second groove 32 is inserted into the receiving portion 26. The guide rail 7 preferably has a plastic material. In particular, the guide rail 7 is an injection-molded component.

The pull-out device 4 also has an in FIG. 7 shown spring guide device 33. The spring guide device 33 is displaceable along the guide rail 7. The spring guide device 33 has a plate-shaped base portion 34 which is provided with a plurality of recesses 35. At a first end portion 36 of the base portion 34, a spring cage 37 is provided. The spring cage 37 has a square circumferential wall 38. On an upper side 39 of the wall 38, an annular roof section 40 is provided, which closes the spring cage 37 upwards. Down the spring cage 37 is open. The annular roof section 40 preferably has a semicircular shape.

On the wall 38 opposite the base portion 34, a snap hook 41 is provided. The snap hook 41 has a base portion 42 which extends perpendicularly out of the wall 38 out. The base portion 42 is formed band-shaped. Two elastically deformable spring legs 43, 44 extend laterally out of the base section 42 on both sides thereof. The spring legs 43, 44 extend out of the base section 42 at an angle of 45 °. An angle of 45 ° is to be understood here as an angle of 45 ° ± 10 °, preferably of 45 ° ± 5 °, more preferably of 45 ° ± 1 °. The spring legs 43, 44 extend away from the wall 38. At the base portion 42, a snap portion 45 is further provided. The snap portion 45 has two in the direction of the spring legs 43, 44 extending elastically deformable locking legs 46, 47.

At a second end portion 48 of the base portion 34 of the spring guide means 33, a T-shaped groove 49 is provided. The T-shaped groove 49 is perpendicular to a top 50 of the base portion 34. The T-shaped groove 49 breaks through the base portion 34 completely.

At the top 50, a hook portion 51 is further provided, which extends perpendicularly from the top 50 addition. The hook section 51 has a first section 52 extending perpendicularly from the upper side 50, a second section 53 having the geometry of a half hollow cylinder, and a third section 54 extending back in the direction of the upper side 50. The first section 52 is connected to the third section 54 via the second section 53. The hook portion 51 is followed by a recess which breaks through the base portion 34. The recess is disposed below the semi-cylindrical portion 53 of the hook portion 51.
The spring guide device 33 further comprises encompassing sections 55 to 60 ( FIG. 5 ). The number of encompassing sections is arbitrary. Preferably, the spring guide device 33 has six encompassing sections 55 to 60. The spring guiding device 33 can also have only two or four encompassing sections. The encompassing portions 55 to 60 extend vertically out of a bottom 61 of the spring guide device 33 out. The encompassing portions 55 and 60 extend out of the wall 38. The encompassing portions 56, 57, 58 and 59 extend out of the base portion 34. Each of the encompassing sections 55 to 60 is suitable for gripping the guide rail 7 at least in sections. Each encompassing portion 55 to 60 has a bottom portion 61 extending from the base portion 62 which has a rectangular cross-section. Extending inwardly from the base portion 62 with respect to the spring guide means 33 is a gripping portion 63. The gripping portion 63 is disposed at an angle of 90 ° relative to the base portion 62. The gripping portions 63 are arranged such that they surround the wall sections 12, 13 of the side sections 9, 10 of the guide rail 7. The spring guide device 33 is preferably formed in one piece and formed with a plastic material, in particular in an injection molding process.

The pull-out device 4 has an in FIG. 8 shown spring means 64 which biases the vapor shield 3 in the direction of its extended state. The spring device 64 is relaxed in the extended state of the vapor shield 3 and stretched in the retracted state of the vapor shield 3. The Spring guiding device 33 is coupled to the guide rail 7 via the spring device 64.

The spring device 64 has a tab portion 65 and a scroll spring portion 66. The FIG. 8 shows the spring device 64 in a relaxed state. In a rolled-up state, the roll spring section 66 is relaxed and in an unrolled state the roll spring section 66 is tensioned. The tab portion 65 is T-shaped and has a flange 67 and a web 68. The flange 67 is connected via the web 68 with the scroll spring portion 66. The tab section 65 is formed by providing a recess 69 on both sides of the spring device 64. The recess 69 is formed at right angles in the direction of the flange 67 and angled away in a direction away from the flange 67.

The spring device 64 is preferably formed with a spring steel. The spring device 64 is designed in one piece. The tab portion 65 is formed corresponding to the receiving portion 26 of the guide rail 7.

The pull-out device 4 also has an in FIG. 9 shown damping device 70. The damping device 70 is preferably designed as a rotational damping device.

The damping device 70 has a first section 71 with a toothing 72 and a fastening section 73. The toothing 72 is formed corresponding to the toothing 14 of the guide rail 7. The toothing 72 is rotatable relative to the attachment portion 73. The damper 70 further includes a damping fluid, such as an oil, provided in the damper 70. During a rotational movement of the toothing 72 relative to the attachment portion 73, the damping fluid dampens the rotational movement. The attachment portion 73 preferably has a flat cylindrical shape with two lateral attachment tabs 74, 75. In the fastening tab 74, a bore 76 is provided. In the fastening tab 75, a long bore 77 is provided.

Preferably, the pull-out device 4 has an in FIG. 10 shown connecting element 78. The connecting element 78 has a plate-shaped base portion 79 and two snap hooks 80, 81 extending from the base section 79. The snap hooks 80, 81 extend perpendicularly from an upper side 82 of the base section 79.

Each snap hook 80, 81 has a web section 83 extending perpendicularly from the top side 82 and a snap section 84 adjoining the web section 83. The snap portion 84 extends laterally out of the web portion 83. The snap portions 84 of the snap hooks 80, 81 are facing away from each other. The connecting element 78 further has an opening 85 in the base section 79. The connecting element 78 is preferably formed in one piece and has a plastic material. In particular, it is designed as a plastic injection molded component.

The pull-out device 4 also has an in FIG. 11 shown mounting bracket 86. The mounting bracket 86 is preferably designed as a sheet metal bending component. The mounting bracket 86 has a plate-shaped base portion 87 from which a wall portion 88 extends laterally. The wall portion 88 is disposed perpendicular to the base portion 87.

In the wall portion 88, an opening 89 is provided. On the wall portion 88, a fold 90 is further provided. The fold 90 is arranged at an angle of 90 ° relative to the wall portion 88. The fold 90, the wall section 88 and the base section 87 form a C-shape.

The base portion 87 has bores 93, 94 at a first end portion 91 and at a second end portion 92, respectively. The bores 93, 94 are provided at an edge of the base portion 87 remote from the wall portion 88. Further, the base portion 87 has a bore 95 associated with the first end portion 91 and a bore 96 associated with the second end portion 92. The bores 95, 96 are provided on an edge of the base section 87 adjacent to the wall section 88.

In the base portion 87, two openings 97, 98 are also provided. The apertures 97, 98 are disposed between the bores 93, 94 and associated with the edge of the base portion 87, which is remote from the wall portion 88. Everyone who Openings 97, 98 has an insertion section 99, which is rectangular in shape, and a locking section 100 adjoining the insertion section 99. The locking portion 100 is designed as a groove. The locking portions 100 of the apertures 97, 98 are arranged facing each other. The insertion section 99 is dimensioned such that one of the insertion feet 18, 19 of the guide rail 7 can be guided therethrough. The locking portion 100 is dimensioned such that the web 21 of the insertion feet 18 or 19 can be moved into this.

The extractor 4 and the hood 1 also has a in the Figures 3 and 12 shown releasable locking device 101 which locks the vapor shield 3 in the retracted state in the housing 2 of the hood 1. The locking device 101 has a first locking element 102 assigned to the housing 2 and a second locking element 103 assigned to the vapor shield 3.

The first locking element 102 is connected to the housing 2. For this purpose, the first locking element 102 has a rectangular base section 104 from which a fastening section 105 extends. On the attachment portion 105 snap hooks 106, 107 are provided on both sides. When the first locking element 102 is pressed into a corresponding recess of the housing 2, the snap hooks 106, 107 snap into the housing 2, whereby the first locking element 102 is fixed to the housing 2. At the attachment portion 105, a receiving portion 108 for receiving a corresponding engagement portion 109 of the second locking member 103 is further provided.

The second locking element 103 is coupled to the canopy 3 by means of a bolt 110. For locking the locking device 101, the second locking element 103 is displaced into the first locking element 102. In this case, the receiving portion 108 of the first locking element 102 receives the engagement portion 109 of the second locking element 103. To unlock the locking device, the second locking element 103 is further displaced in the feed direction E, whereby the second locking element 103 again is released. The locking elements 102, 103 are preferably designed as plastic injection molded components.

For mounting the pullout device 4 is according to FIG. 13 First, the spring device 64 inserted into the spring guide device 33. Here, the rolling spring portion 66 is positioned in the spring cage 37 of the spring guide device 33.

The damping device 70 is inserted into a provided on the underside 61 of the spring guide means 33 recess 111 of the base portion 34. In this case, a snap hook 112, which is provided on the recess 111, snaps over the first fastening tab 74 of the fastening section 73 of the damping device. The second fastening tab 75 is previously inserted behind a projection 111 provided on the recess 111.

Subsequently, the spring guide device 33 according to FIG. 6 starting from the first end portion 15 of the guide rail 7 pushed onto this. In this case, the snap hook 41 points in the direction of the receiving section 26. The encompassing sections 55 to 60 of the spring guiding device 33 at least partially surround the side sections 9, 10 of the guide rail 7. The toothing 72 of the damping device 70 engages in the toothing 14 of the guide rail 7.

The tab portion 65 of the spring device 64 is suspended in the receiving portion 26 of the guide rail 7. Here, the flange 67 of the tab portion 65 is received by the groove 32 of the receiving portion 26 of the guide rail 7. The flange 67 rests in the groove 32. The tab portion 65 is positively received by the receiving portion 26.

The guide rail 7 is according to FIG. 5 mounted on the mounting bracket 86. The mounting bracket 86 is mounted on the first end portion 15 of the guide rail 7. In this case, the insertion end 18 assigned to the first end section 15 of the guide rail 7 is introduced into one of the apertures 97, 98 of the mounting bracket 86. For this purpose, the flange 20 is guided by the corresponding insertion section 99 and the guide rail 7 is displaced in the direction of the locking section 100.

Depending on whether the extraction device 4 at a first or left side L or at a second or right side R of the vapor shield 3 (FIG. FIG. 3 ), either the aperture 98 or the aperture 97 of the mounting bracket 86 is used. In FIG. 5 the pull-out device 4 for the right side R of the vapor shield 3 is shown. To secure the guide rail 7 to the mounting bracket 86, the mounting bracket 86 is screwed to the guide rail 7 via the opening 22 of the guide rail 7 and one of the bores 93, 94. The mounting bracket 86 is then connected to the housing 2.

A connection between the spring guide device 33 and the vapor shield 3 is produced by the fact that, as in FIG. 14 shown on the snap hook 41 of the spring guide device 33, the connecting element 78 is attached. In this case, the snap portion 45 engages in the opening 85 of the connecting element 78. The spring legs 43, 44 press against the base portion 79 of the connecting element 78. The snap hooks 80, 81 of the connecting element 78 snap into corresponding recesses on the vapor shield 3.

The FIG. 14 shows the extractor 4 in the retracted state. The roll spring portion 66 of the spring device 64 is almost completely unwound, that is, the spring means 64 is stretched. The tab portion 65 is received in the receiving portion 26 of the guide rail 7. The spring guiding device 33 is connected to the vapor shield 3 via the connecting element 78. The mounting bracket 86 is connected to the housing 2 of the hood. The vapor shield 3 is held by the locking device 101 in the retracted state.

By displacing the locking device 101 in the feed direction E, ie by tapping the retracted vapor shield 3, the second locking element 103 connected to the vapor shield 3 is decoupled from the first locking element 102 connected to the housing 2. Due to the spring bias of the spring device 64, the vapor shield 3 is moved from the retracted state in the extension direction A in its extended state. In this case, the roll spring section 66 winds up in the spring cage 37 of the spring guide device 33. By the damping device 70, the movement of the vapor shield 3 is attenuated. The Damping characteristic of the damping device 70 can be adjusted as desired. By using the damping device 70, a jerky or too fast movement of the vapor shield 3 is prevented. Furthermore, a constant withdrawal speed of the vapor shield 3 can be achieved by the adjustable damping parameters of the damping device 70. The extractor hood 1 preferably has two pull-out devices 4. The damping device 70 may be provided in both pull-out devices 4 or only in one of the pull-out device 4.
For displacing the vapor shield 3 from its extended state to the retracted state, it is inserted manually in the feed direction E against the spring force of the spring device 64. In this case, the roll spring section 66 of the spring device 64 is unwound. As soon as the second locking element 103, which is connected to the vapor shield 3, engages in the first locking element 102, which is connected to the housing 2, the vapor shield 3 is locked in the retracted state in the housing 2. Characterized in that the spring means 64 has the rolling spring portion 66, a constant insertion force over the entire insertion path of the vapor shield 3 is achieved.
Although the invention has been described herein with reference to preferred embodiments, it is not limited thereto but variously modifiable, the scope of protection being defined by the claims.

Used reference signs:

1

Hood

2

casing

3

canopy

4

extraction device

5

cover

6

Operating / display element

7

guide rail

8th

base section

9

side portion

10

side portion

11

wall section

12

wall section

13

wall section

14

gearing

15

end

16

end

17

bottom

18

Einschubfuß

19

Einschubfuß

20

flange

21

web

22

breakthrough

23

breakthrough

24

recess

25

bulging

26

receiving portion

27

top

28

base section

29

groove

30

wall section

31

wall section

32

groove

33

Spring guide device

34

base section

35

recess

36

end

37

spring cage

38

wall

39

top

40

roof section

41

snap hooks

42

base section

43

spring leg

44

spring leg

45

snap section

46

latching leg

47

latching leg

48

end

49

groove

50

top

51

hook section

52

section

53

section

54

section

55

Umgreifungsabschnitt

56

Umgreifungsabschnitt

57

Umgreifungsabschnitt

58

Umgreifungsabschnitt

59

Umgreifungsabschnitt

60

Umgreifungsabschnitt

61

bottom

62

base section

63

cross section

64

spring means

65

tab portion

66

Roll spring section

67

flange

68

web

69

recess

70

attenuator

71

section

72

gearing

73

attachment section

74

mounting tab

75

mounting tab

76

drilling

77

drilling

78

connecting element

79

base section

80

snap hooks

81

snap hooks

82

top

83

web section

84

snap section

85

breakthrough

86

mounting brackets

87

base section

88

wall section

89

breakthrough

90

fold

91

end

92

end

93

drilling

94

drilling

95

drilling

96

drilling

97

breakthrough

98

breakthrough

99

insertion

100

locking section

101

locking device

102

locking element

103

locking element

104

base section

105

attachment section

106

snap hooks

107

snap hooks

108

receiving portion

109

engaging portion

110

bolt

111

recess

112

snap hooks

113

head Start

A

extraction direction

e

Feeding direction

₇

length

l ₁₄

length

L

left side

R

right side

Claims (11)

1. Extractor hood (1), in particular slimline cooker hood, having a vapour shield (3) and a spring-driven pull-out device (4), which is designed to displace the vapour shield (3) from a retracted state to a pulled-out state, wherein the pull-out device (4) has a spring device (64) which biases the vapour shield (3) in the direction of the pulled-out state, characterised in that the pull-out device (4) has a guide rail (7) and a spring guide device (33) that can be displaced along the guide rail (7) and in that the spring guide device (33) is coupled to the guide rail (7) by means of the spring device (64).
2. Extractor hood (1) according to claim 1, characterised in that the spring device (64) is relaxed in the pulled-out state of the vapour shield (3) and tensioned in the retracted state of the vapour shield (3).
3. Extractor hood (1) according to claim 1 or 2, characterised in that the pull-out device (4) has a damping device (70) which damps a movement of the vapour shield (3) during the displacement thereof from the retracted state to the pulled-out state.
4. Extractor hood (1) according to claim 3, characterised in that the damping device (70) is a rotary damping device.
5. Extractor hood (1) according to one of claims 1-4, characterised by a detachable locking device (101) which locks the vapour shield (3) in the retracted state in a housing (2) of the extractor hood (1).
6. Extractor hood (1) according to claim 5, characterised in that the locking device (101) is designed to unlock the vapour shield (3) by displacing it in the retracted state in a retraction direction (E).
7. Extractor hood (1) according to claim 1, characterised in that the spring guide device (33) has engagement sections (55 to 60) which engage around the guide rail (7) at least in sections.
8. Extractor hood (1) according to claim 7, characterised in that the spring device (64) has a tab section (65) which is received by a corresponding receiving section (26) of the guide rail (7), and a roll spring section (66) which is received at least in sections in a spring cage (37) of the spring guide device (33).
9. Extractor hood (1) according to claim 8, characterised in that the roll spring section (66) is relaxed in a rolled-in state and tensioned in a rolled-out state.
10. Extractor hood (1) according to one of claims 1-9, characterised in that the spring guide device (33) has a snap hook (41) which engages into a connecting element (78), and in that the vapour shield (3) is coupled to the spring guide device (33) via the connecting element (78).
11. Extractor hood (1) according to one of claims 1-10, characterised by two spring-driven pull-out devices (4) which are arranged on opposite sides (L, R) of the vapour shield (3).

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