EP2378209B1 - Extractor hood - Google Patents

Description

The invention relates to an extractor hood according to the preamble of claim 1.

Extractor hood or food are made today with a one- or multi-part Wrasenschirm. The vapor shield can in this case be made of glass, for example. The vapor canopy is connected via a support element to the chimney.

In the DE 10 208 017 286 A1 Such a fume extractor is described in which a Wrasenschirmplatte is mounted on a support member via at least one fastener, wherein the fastener for mounting and Demotage the Wrasenschirmplatte tool-free solvable or tensioned. As a fastener in this case a bolt is used with a screw-on clamping nut. The bolt is passed through an opening provided in the support member. In addition, the bolt protrudes through an opening which is provided in the Wrasenschirmplatte. By passing the bolt through the two superimposed apertures in the support member and the fume shield plate and screwing the bolt to the tightening nut, the support member and the fume shield plate are fastened together.

A disadvantage of this type of attachment of a Wrasenschirmplatte is that the necessary clamping force is applied via a clamping nut. In order to allow actuation thereof, the lock nut must project beyond the surface of the support member or the canopy plate. In addition, in the case of a screw connection, there is always the risk that it may come loose due to vibrations that may occur, for example, during the transport of the extractor hood.

Object of the present invention is therefore to provide a cooker hood, can be eliminated in the disadvantages of the prior art, or at least mitigated and still can be done tool-free in the attachment of the Wrasenschirmplatte.

The invention is based on the finding that this object can be achieved by the fastening device acts on the edge of Wrasenschirmplatte and the viewing hood.

According to the invention the object is therefore achieved by an extractor hood, which comprises a Wrasenschirmplatte with a recess for receiving a channel, a viewing hood with a recess for receiving a channel and at least one fastening element for fixing the Wrasenschirmplatte to the viewing hood, wherein the fastener at least a portion of Edge of Wrasenschirmplatte and surrounds at least a portion of the edge of the viewing hood. The extractor hood is characterized in that the Wrasenschirmplatte and the viewing hood each have at least one indentation in the recess and the fastener is at least partially introduced into a recess of the viewing hood and a recess of the Wrasenschirmplatte and that the fastener is in one piece.

In the following, the terms horizontal, vertical, front, rear and side are used for components of the hood as it is attached to an extractor hood which is attached to a room wall or ceiling - unless otherwise stated. The terms thus refer to the operating position of the hood. The assembly of the hood refers to the process of assembling the cooker hood, which usually takes place in the factory.

For the purposes of the invention, a visible hood is understood to mean a part of the extractor hood, which is arranged on the inflow side of the extractor hood and which is provided on the underside or the lower edge of a ventilator box. In the viewing hood filter elements can be introduced. In addition, operating elements for operating the extractor hood can also be provided in the viewing hood. For the purposes of the present invention, however, a viewing frame can also be understood as a support frame which is connected to the ventilator box or a channel at the lower end or in the lower region and to which a viewing screen in which the components, such as filter elements and optionally operating elements are provided, can be attached.

As Wrasenschirmplatte a component of the Wrasenschirms is referred to in the context of the present invention, which increases a viewing hood at least to the sides. In particular, as a Wrasenschirmplatte a component of the vapor shield is called, on the fumes and vapors that the hood from below, flow to the sighting hood and thus to the suction opening of the extractor hood. The Wrasenschirmplatte can represent a flat plate. However, it is also within the scope of the invention to use a Wrasenschirmplatte having a curvature or curvature.

The viewing hood together with the Wrasenschirmplatte is referred to below as Wrasenschirm.

As a channel, which are provided according to the invention in the recesses of Wrasenschirmplatte and the viewing hood, the box-shaped body of a fan box is understood. In particular, in the case of Wrasenschirmplatte but also a veneer of the fan box, in particular a chimney, are introduced into the recess.

According to the invention, the fastening element encompasses at least a part of the edge of both the vapor shield plate and the viewing hood, the fastening element can be pushed onto the edges of the Wrasenschirmplatte and the viewing hood or otherwise attached from the side of the Wrasenschirmplatte and the viewing hood. In this case, the fastening element preferably surrounds the upper side of a part of the edge of the vapor shield plate and a part of the side surface of the edge of the vapor shield plate and the underside of a part of the edge of the viewing hood and a part of the side surface of the edge of the viewing hood. Thus, according to the present invention, an applied on a viewing hood Wrasenschirmplatte is held on the viewing hood.

The extractor hood according to the invention has a number of advantages. First, it is not necessary to provide an opening in the surface of the Wrasenschirmplatte and the viewing hood, through which a fastener must be performed. In addition, the height of the fastening element can be reduced to the height of the vapor shield at the edge on which the fastening element is provided. This low height of the fastener is inventively possible because actuators for the fastener, such as a clamping nut, are not required. By a height of the fastener, which corresponds to the height of the Wrasenschirms at the edge at which the fastener is provided, or which is only slightly larger, both the surface of the Wrasenschirmplatte and the underside of the Be visible even after the attachment of the fastener. As a result, on the one hand, the visual appearance of the extractor hood is improved overall. On the other hand, the Wrasenschirmplatte and the viewing hood can be cleaned easier.

Preferably, the at least one fastening element is provided in the region of the recesses on the edge of the Wrasenschirmplatte and the viewing hood. Here, the fastener is pushed or plugged from the interior of the recess on the superimposed viewing hood and Wrasenschirmplatte. According to the invention, a channel of the extractor hood is received in the recesses in such a way that it bears against the recess or lies at least at a small distance from the recess. By this arrangement of the fastening element thus an additional support of the fastening element can be ensured. In particular, a movement of the fastener opposite to the direction in which it was attached to the vapor shield can be prevented.

In the extractor hood according to the invention, the Wrasenschirmplatte and the viewing hood each have at least one indentation in the recess and the fastener is at least partially introduced into a recess of the viewing hood and a recess of the Wrasenschirmplatte. An indentation is a recess which extends from the edge of the corresponding component into the surface of the corresponding component. The indentation may in this case have the shape of a circular section, in particular a semicircle, an oval section or a slot section. However, it is also possible that the shape of the indentation has a polygonal shape, that is to say that the indentation has, for example, a quadrangular shape.

The indentations on the Wrasenschirmplatte and the viewing hood are congruent, that is lie in the assembled state of the hood over each other and have the same shape.

Since the Wrasenschirmplatte usually has a greater thickness, for example in a Wrasenschirmplatte consisting of glass, it may be provided that the indentation also has slopes or bends at the upper or lower edge. Through these bevels, a centering of the fastener be supported in the indentation. Since the Wrasenschirmplatte is placed on the viewing hood, for example, the upper edge of the Wrasenschirmplatte may have a chamfer.

The depth of the indentation, that is to say how far it extends into the surface of the respective component, is preferably chosen so small that the indentation does not weaken the stability of the respective component. For example, the depth of the recess may be in the range of 1 to 5 cm. Particularly preferably, the depth of the indentation is less than the depth of the fastening element in this area. In this way, the fastener in the plane of the indentations can be completely absorbed in this and the edge of the recess can continue to represent a straight line. As a result, the insertion of a fixing device or the channel along the edge of the recess is not hindered.

By providing a recess on the recess into which the fastener is inserted and held, horizontal slippage of the fastener along the edge of the recess can be reliably prevented.

The fastening element according to the invention is in one piece. As a result, on the one hand reduces the number of parts and on the other hand simplifies the installation of the hood. In particular, in the attachment of the Wrasenschirmplatte to the viewing hood to hold only one element and this can be attached to the canopy in one step. In addition, in the fastener used in the invention, the one-piece production is possible because this only has to embrace a part of the edge of the vapor shield and does not have to be passed through an opening in the vapor shield. In addition, the production is simplified in a one-piece component. Thus, the fastener can be made for example by injection molding of plastic. But it is also possible to provide a spring element on the fastening element. In this embodiment, the fastening element is connected to the spring element so that these two parts form a unit which can be attached to the canopy in one step. For this purpose, the spring element can be hooked into the fastener, plugged or poured. Last type of attachment is especially for fasteners made of plastic material. The spring element is integrated in the fastening element or attached thereto, that at least one component of the spring force of the spring element serves as a clamping force that press the Wrasenschirmplatte and the viewing hood together.

According to one embodiment, the fastening element has at least a part of its circumference a groove for receiving a part of the Wrasenschirmplatte and a part of the viewing hood. As the scope of the fastener whose wall is called, which is perpendicular to the surface of the Wrasenschirmplatte in the mounted state. The groove in the fastener is horizontal. By providing a groove in the fastener, an upper and a lower portion of the fastener are formed, the dimensions of which are greater in the horizontal, that is parallel to the surface of the vapor shield plate, than in the intermediate region of the groove. In this way, at the bottom of the upper portion, which may be plate-shaped, for example, and at the top of the lower portion, which may also be plate-shaped, respectively created a contact surface for contacting the top of the Wrasenschirmplatte and the underside of the viewing hood. By means of these contact surfaces, the entire contact surface of the fastening element with the vapor shield is increased, thereby improving the maintenance of the vapor shield plate on the viewing hood. The groove may extend over only three peripheral surfaces of the fastener. In this case, the side of the fastening element which faces away from the fastening point on the vapor shield, for example the indentation, is a flat surface. This side of the fastener is hereinafter also referred to as the back of the fastener. Alternatively, it is also possible to provide a groove or a step in the side facing away from the fastening point. This groove or step can serve to receive fixation devices.

According to one embodiment, in each case two opposite indentations are provided in the recess of the Wrasenschirmplatte and the recess of the viewing hood. The indentations are in this case preferably provided on the lateral edges of the recess. By this arrangement of the indentations, the position of the Wrasenschirmplatte can be reliably set and held to the viewing hood. In the overlying recesses of the Wrasenschirmplatte and the viewing hood a fastener is introduced, this surrounds the edge of the Wrasenschirms and thus prevents lifting of Wrasenschirmplatte from the viewing hood, that is a relative vertical movement of the two components. In addition, the displacement in the horizontal direction is prevented by the fastener in the indentation forward. By two opposite indentations are provided on the respective recesses, a rotation of the Wrasenschirmplatte can be reliably prevented on the viewing hood. Moving the Wrasenschirmplatte in the horizontal direction to the rear or to the sides is prevented in the mounted state of the vapor shield by the recessed channel.

A pre-assembly of the Wrasenschirms, that is an attachment of the Wrasenschirmplatte to the viewing hood, is preferred in most cases. Here, the vapor shield is transported in the assembled state. In order to reliably prevent displacement of the Wrasenschirmplatte backwards or to the sides and also a lifting of the Wrasenschirmplatte of the viewing hood in these cases, the fastener must be attached and fixed. For this reason, according to one embodiment, the extractor hood comprises at least one fixing device for fixing the fastening element. The fixing device is in this case attached to a part of the edge of the viewing hood. By the fixing device is connected to the viewing hood, the fixing device can ensure the maintenance of the fastener to the vapor shield already in the state in which the vapor shield is preassembled but not yet connected to the fan box or chimney of the hood. This preassembled condition of the vapor shield is present, for example, during final assembly of the extractor hood in the factory or during transport of the canopy.

The fixing device is in contact with the rear side of the fastening element. This ensures that the fastener can not fall out against the insertion direction in or on the vapor shield.

If a fixing device is used, it preferably represents a rail. By using a rail as a fixing device, a number of advantages can be achieved. On the one hand, the fixing device can be connected to the viewing hood by being pushed onto the viewing hood, that is to say on its edge. Therefore, no tool is necessary for this connection. On the other hand, the rail is in the attached state, at least on a part of the back of the fastener and so can reliably slip out of the Prevent fastening element from a recess provided. Finally, the rail can also be designed so that it can engage in a step on the back of the fastener. As a result, the vertical position of the fastener is further stabilized.

Preferably, the fixing device is attached to a part of the recess of the viewing hood. This position of the fixing device is advantageous, since the recess is not visible in the mounted state of the extractor hood and therefore the overall visual impression of the extractor hood is not disturbed. In addition, the fixing device which is provided in this position can also perform other functions. In the recess for mounting the hood of the fan box and / or the chimney are introduced. About the fixing device can be connected to the viewing hood in this embodiment, the fan box and / or fireplace. This can be done for example by screws.

Preferably, the fastening element consists of plastic. This material is advantageous because it has some flexibility. This flexibility makes it easier to slide or attach the fastening element onto the edge of the vapor shield. In addition, the holding force which prevents moving the Wrasenschirmplatte and the viewing hood to each other in the vertical direction, can be increased. Furthermore, complex shapes can be produced easily from plastic, for example by means of injection molding. For example, an opening may be provided in the fastening element, in which engages a spring element with a nose or a hook.

The Wrasenschirmplatte according to the invention may for example consist of a transparent material, in particular of glass or plastic. In such a Wrasenschirmplatte it is of particular importance that a drop of the Wrasenschirmplatte can be prevented during assembly of the hood. This is ensured in the extractor hood according to the invention by the fasteners and optionally additionally by the indentations and fixing devices. In addition, the processing, in particular a drilling or punching, of plastic and glass is critical because these materials break easily. Since, according to the present invention, it is not necessary to introduce an opening into the surface of the vapor shield plate, the risk of breakage during manufacture can be minimized. Are indentations on the Wrasenschirmplatte provided, they can be formed in the manufacture of the Wrasenschirmplatte for example by cutting or by pouring into a corresponding shape. The fastening element according to the invention is also referred to as a glass holder.

Figur 1:

eine schematische, perspektivische Darstellung einer Ausführungsform der erfindungsgemäßen Dunstabzugshaube;

Figur 2:

eine schematische, perspektivische Unteransicht des Wrasenschirms der Ausführungsform der erfindungsgemäßen Dunstabzugshaube nach Figur 1 während der Montage;

Figur 2a:

eine schematische Perspektivansicht einer Ausführungsform einer Befestigungsvorrichtung für die erfindungsgemäße Dunstabzugshaube;

Figur 3:

eine schematische Schnittdarstellung entlang der Schnittlinie A-A in Figur 1;

Figur 4:

eine schematische Perspektivansicht einer weiteren Ausführungsform einer Befestigungsvorrichtung für die erfindungsgemäße Dunstabzugshaube;

Figur 5:

eine schematische Schnittansicht der Ausführungsform der Befestigungsvorrichtung nach Figur 4.

The invention will be explained again below with reference to the accompanying drawings. Hereby show:

FIG. 1:

a schematic perspective view of an embodiment of the extractor hood according to the invention;

FIG. 2:

a schematic, perspective bottom view of the vapor shield according to the embodiment of the extractor hood according to the invention FIG. 1 during assembly;

FIG. 2a:

a schematic perspective view of an embodiment of a fastening device for the extractor hood according to the invention;

FIG. 3:

a schematic sectional view along the section line AA in FIG. 1 ;

FIG. 4:

a schematic perspective view of another embodiment of a fastening device for the extractor hood according to the invention;

FIG. 5:

a schematic sectional view of the embodiment of the fastening device according to FIG. 4 ,

In FIG. 1 An embodiment of the extractor hood 1 according to the invention is shown schematically in perspective view. The extractor hood 1 consists of a fan box 15, which has a box-shaped channel 151. At the top of the channel 151, a pipe socket is introduced as an air outlet. The fan box 15 is surrounded at its lower end on three sides by a vapor shield 10. The vapor shield 10 consists of a Wrasenschirmplatte 11 and a viewing hood 12. The Wrasenschirmplatte 11 is in the illustrated embodiment, a one-piece planar glass element. In the back of the Wrasenschirmplatte 11 a recess 111 is centrally provided, in which the channel 151 of the fan box 15 is received. The Wrasenschirmplatte 11 is held on the viewing hood 12. The viewing hood 12 is a sheet metal frame in the illustrated embodiment, in the rear side also a central recess 121 is provided. The recess 111 in the Wrasenschirmplatte 11 and the recess 121 in the viewing hood 12 are congruent, that is located in the assembled state in the same position and have the same shape. The size of the recess 111 in the Wrasenschirmplatte 11 may be slightly larger compared to the recess 121 in the viewing hood 12 so that in the recess 111 in addition to the channel 151 of the fan box 15, a fan box 15 surrounded fireplace (not shown) can be added. At the front of the viewing hood 12 controls for operating the hood 1 are provided. The width of the viewing hood 12 is less than the width of the Wrasenschirmplatte 11 in the illustrated embodiment.

In the recess 111 of the Wrasenschirmplatte 11 is in FIG. 1 to recognize a fastener 13, via which the Wrasenschirmplatte 11 is attached to the viewing hood 12. The fastening element 13 is provided on the lateral edge of the recess 111. The fastener 13 and its function will now be with reference to the Figures 2 and 3 described in more detail.

In FIG. 2 the vapor shield 10 is shown in a perspective bottom view. The fasteners 13 are not yet brought into position. In this view, the structure of the viewing hood 12 can be seen more accurately. The viewing hood 12 consists of a sheet metal material, from which a frame shape is formed. In particular, the viewing hood 12 has a flat base 123 on which the Wrasenschirmplatte 11 rests. At the front and the lateral edges of the base 123, the sheet material is bent downwardly inwards, thus defining an interior of the viewing hood 12. Filter elements, in particular filter cassettes (not shown), can be introduced and held in the underside of the viewing hood 12.

In the base 123 of the viewing hood 12, a recess 122 is introduced at each of the lateral edges of the recess 121. The indentation 122 has the shape of a slot section in the illustrated embodiment. In the Wrasenschirmplatte 11 is also provided in each case a recess 112 at the corresponding position on the lateral edges of the recess 111. The indentations 122 and 112 are congruent. This means that the recesses 122 and 112 have the same shape and in the state shown, in which the recess 111 of the Wrasenschirmplatte 11 and the recess 121 of Visual cover 12 are superimposed, even the recesses 112, 122 are superimposed.

The so applied to the viewing hood 12 Wrasenschirmplatte 11 is attached via the fasteners 13 to the viewing hood 12. The fasteners 13 have in the illustrated embodiment at the top and bottom of a larger size than in the central region. Between the upper plate 132 and the lower plate 133 of the fastener 13 extends a horizontal groove 131. Thus, the fastener 13 is in the form of a column in which the upper and lower plates 133, 132 are interconnected by a vertical post of smaller horizontal dimension are. The groove 131 extends in the illustrated embodiment over three sides of the fastener 13. At the rear 134 of the fastener 13, a step 135 is introduced in the illustrated embodiment. The step 135 extends over the height of the lower plate 133.

This fastening element 13 is inserted into the mutually aligned indentations 112 and 122 of the Wrasenschirmplatte 11 and the viewing hood 12. In this case, the groove 131 in the direction of the indentations 112, 122. The fastener 13 is inserted so far that the rear side 134 is received in the recess 112, 122 or at least with the lateral edge of the recess 111, 121 is flush. In this state, the Wrasenschirmplatte 11 and the viewing cover 12 are held together at the base 123 by the plates 132 and 133 of the fastener 13 and compressed. After the fastening element 13 has been introduced into the indentation 112, 122, a fixing device 14 in the form of a rail is pushed onto the lateral edge of the recess 121 of the viewing hood 12 from the rear side of the viewing hood 12. For this purpose, a flange 124 is provided on the edge of the base 123 of the viewing hood, which extends downwards along the edge of the recess 121 from the base 123. In the illustrated embodiment, the flange 124 is provided only on portions of the edge of the recess 121. At the trained as a rail fixing device 14 corresponding tabs or slots are provided on one leg, over which the fixing device 14 can engage with the flange 124 on the viewing hood 12. On the fixing device 14 further holes or holes are provided on a standing perpendicular to the first leg second leg holes through which the fixing device 14 and Thus, the viewing hood 12 attached to the fan box 15, in particular can be screwed.

After the fixing device 14 is pushed onto the viewing hood 12, the rear side 134 of the fastening elements 13 lies in the lower region, that is to say in the region of the step 135 on the fixing device 14. Thus, the fasteners 13 are held by the fixing device 14 in position. In particular, a slipping of the fastening elements 13 is prevented against the insertion direction.

This condition is in the FIG. 3 shown. In this sectional view, it can be seen that the rear side 134 of the fastening device 13 is held by the fixing device 14 fastened to the flange 124 of the viewing hood 12. In particular, the rail abuts against the rear side 134 of the lower plate 133 of the fastening device 13 and holds the fastening device 13 in position.

Thus, the Wrasenschirmplatte 11 is securely attached to the viewing hood 12 and consisting of these two components Wrasenschirm 10 can be reversed for mounting the hood 1, that is for introducing and securing the fan box 15 and other components, so that the Wrasenschirmplatte 11 is below.

In the FIGS. 4 and 5 a further embodiment of the fastening element 13 according to the invention is shown. This embodiment essentially corresponds to that in FIG FIG. 2 a shown embodiment. The same components are therefore provided with the same reference numerals and their structure and function will not be explained again. However, in the embodiment according to the Figures 5 and 6 as a further component, a spring element 136 is provided on the fastening element 13. The spring element 136 has two mutually at an acute angle spring legs 1361 and 1362 on. At the free end of the lower spring leg 1361, a hook 1363 is provided. This is, as is apparent from Figure 6, inserted into a hooking 1332. The opening 1332 is provided in the lower plate 133. At the upper spring leg 1362 a recess 1364 is provided at the free end. The shape of the recess 1364 corresponds to the outer contour of the connection between the upper plate 132 and the lower plate 133. However, as in the FIGS. 4 and 5 indicated in the region of the groove 131 may also be provided a recess 1331 in the fastening element 13.

The thus connected to the fastener 13 spring element 136 is compressed when attaching the fastener 13 to the vapor shield 10, that is, the angle between the spring legs 1361 and 1362 is reduced. By the recess 1331 in the region of the groove 131 pivoting of the upper spring leg 1361 is not hindered. Due to the spring characteristic of the spring element 13, in this compressed state of the spring element 13, a force is applied from below to the viewing hood 12 which, together with the counterforce acting through the upper plate 132 of the fastening element 13, exerts a clamping force on the edge of the vapor shield 10, which ensures a secure hold.

The present invention has a number of advantages. In particular, the assembly can be done without screws and tools. Furthermore, the pre-assembly of the designed in particular as a glass pane Wrasenschirmplatte to the viewing hood is possible. The viewing hood and glass cover form a self-contained functional assembly, which is then attached to the fan box of the cooker hood. In addition, a simple overhead hood assembly is possible because the glass pane alone can not fall down. As an overhead mounting here a mounting of the hood is referred to, in which the hood is mounted in an orientation in which the vapor shield facing upward.

LIST OF REFERENCE NUMBERS

1

Hood

10

canopy

11

Wrasenschirmplatte

111

recess

112

indentation

12

Viewing cover

121

recess

122

indentation

123

footprint

124

flange

13

fastener

131

groove

132

upper plate

133

lower plate

1331

deepening

1332

hooking

134

back

135

step

136

spring element

1361

spring leg

1362

spring leg

1363

hook

1364

recess

14

fixing

15

fan box

151

channel

Claims (8)

1. Extractor hood which comprises a vapour shield plate (11) with a cutout (111) for accepting a channel (151), a screen (12) with a cutout (121) for accepting a channel (151) as well as at least one attachment element (13) for attaching the vapour shield plate (11) to the screen (12), wherein the attachment element (13) encompasses at least one part of the edge of the vapour shield plate (11) and at least one part of the edge of the screen (12), characterised in that the vapour shield plate (11) and the screen (12) each have at least one indentation (112, 122) in the cutout (111, 121) and the attachment element (13) is inserted at least partly into the indentation (122) of the screen (12) and an indentation (112) of the vapour shield plate (11) and that the attachment element (13) is a one-piece element.
2. Extractor hood according to claim 1, characterised in that the attachment element (13) has a slot (131) on at least one part of the circumference of the attachment element (13) for receiving a part of the vapour shield plate (11) and a part of the screen (12).
3. Extractor hood according to claim 1, characterised in that two opposing recesses (112, 122) are provided respectively in the cutout (111) of the vapour shield plate (11) and the cutout (121) of the screen (12).
4. Extractor hood according to one of claims 1 to 2, characterised in that the extractor hood (1) comprises at least one fixing device (14) for fixing the attachment element which is attached to a part of the edge of the screen (12).
5. Extractor hood according to claim 4, characterised in that the fixing device (14) represents a rail.
6. Extractor hood according to one of claims 4 or 5, characterised in that the fixing device (14) is attached to a part of the cutout (121) of the screen (12).
7. Extractor hood according to one of claims 1 to 6, characterised in that the attachment element (13) consists of plastic.
8. Extractor hood according to one of claims 1 to 7, characterised in that the vapour shield plate (11) consists of glass.

Images