EP2276977B1 - Fume vent device - Google Patents

Description

The invention relates to a fume extractor according to the preamble of claim 1.

Extractor hoods or food can have a one- or multi-part vapor shield made of glass material or the like, which is supported by a chimney of the extractor device.

So is out of the DE 103 49 675 A1 a fume extraction device is known, which has a chimney, on whose, a cooktop facing suction a transparent Wrasenschirm is provided for catching vapor or cooking vapor.

Usually, the vapor shield is supported on a chimney-side support plate and fastened or glued thereto by means of tool-bound fastening elements. The vapor canopy or hard to reach underlying surfaces can therefore only be cleaned when mounted Wrasenschirm.

From the publication EP 0 722 070 A a generic fume extraction device is known in which the fastener for mounting / dismounting the Wrasenschirmplatte tool-free solvable or tensioned (Fig. 6 and 10 and column 8, lines 42 - 46 of EP 0 722 070 A ). To attach the Wrasenschirmplatte, the fastener on a bolt and a clamping part, wherein the clamping part clamps the bolt head with interposed support member against the Wrasenschirmplatte. The disadvantage here is that both the pressure exerted by the bolt head and the clamping part pressure in the same area of the Wrasenschirmplatte or the support member, namely in the region of the bolt head, act. Due to the pressure exerted jointly by the bolt head and the clamping part, the Wrasenschirmplatte and / or the support member may be damaged.

An extractor housing with a quick release, in which a clamping part is assigned to the bolt in the manner of a quick release, is from the document GB 2 403 531 A (Page 7, paragraph 1, and Figure 7 of GB 2 403 531 A ) known.

The publication CN 2 422 563 Y discloses a bolt head which protrudes with its lower end face in a recess of the support member without the support member to touch directly (see. FIG. 3 of the CN 2 422 563 Y ).

A vapor shield, which is formed as a one-piece plate-shaped glass element which surrounds the chimney on its rear side in the depth direction with a central rectangular recess, is known from the document EP 1 239 226 A known.

The object of the invention is to provide a fume extraction device in which the vapor shield and underlying surfaces can be cleaned in a simple manner, wherein damage to the vapor shield and / or the support member by the force exerted by the bolt head and the clamping pressure during assembly / disassembly the Wrasenschirms should be reliably avoided.

The object is solved by the features of claim 1. Preferred embodiments of the invention are disclosed in the subclaims.

According to the characterizing part of claim 1, the fastener for a simple assembly / disassembly of the Wrasenschirms or Wrasenschirmplatte tool-free solvable or tensioned. The Wrasenschirm can thus be removed in a few simple steps from the support member to clean the support member and / or the Wrasenschirm. The used Wrasenschirm or Wrasenschirmplatte is geometrically not limited to a flat plate. Rather, all common Wrasenschirm designs should be included.

The fastener has a bolt with a bolt head which presses the Wrasenschirmplatte against the support member. For this purpose, the bolt is additionally associated with a clamping part, with which the bolt head can be clamped with interposed Wrasenschirmplatte against the support member.

The support member may usually be a sheet metal part, which is mounted on the suction side of the chimney of the extractor device and on which the Wrasenschirmplatte is supported.

For a tool-free loosening or clamping the clamping part can be a tool-free operable clamping nut, in particular a knurled nut, which is in screw connection with a threaded portion of the bolt. Alternatively, all other quick release solutions are used in which the clamping part is associated with the fastener in the manner of a quick release.

In the assembled state, the fastening element may protrude through a mounting opening of the vapor shield and the carrier part and be clamped on the side facing away from the vapor shield on the carrier part. For this purpose, the bolt head can overlap an upper-side opening edge of the vapor shield mounting opening. For cleaning reasons, it is preferred if the bolt head is flush with the top of the Wrasenschirmplatte. For this purpose, the mounting opening of the Wrasenschirmplatte upper side have a countersink, in which the bolt head is arranged.

For tool-free tightening, it is preferred if the bolt head is rotationally fixed to the Wrasenschirmplatte during the assembly process. A simple rotationally fixed holder can be achieved if the bolt head is not rotationally symmetrical with respect to a bolt longitudinal axis, but has a non-circular contour with which it can be positively inserted in a contour-matched vapor shield mounting opening. Preferably, the mounting opening may have a slot shape, is used in the contour-matched the bolt head.

For manufacturing reasons, it is preferred if the bolt is integrated as a separate component in the bolt head. The bolt head may preferably be a plastic injection molded part molded around an end of the bolt head. In this way, depending on the requirements, the contour of the bolt head can be easily adjusted.

Under the above-mentioned mounting opening of the vapor shield is on the one hand a completely enclosed by the glass material mounting hole and the other a recess or recess to understand the edge is open at the outer edge of the Wrasenschirmplatte.

Alternatively, the mounting hole may be formed as a blind hole on the underside of the Wrasenschirmplatte. In the blind hole, the fastening element, such as the bolt, can be embedded releasably or non-detachably. In this way, a Wrasenschirm-attachment without penetrating the Wrasenschirmplatte is achieved. Cleaning technically advantageous, therefore, the top of the Wrasenschirmplatte remains closed over the entire surface.

Preferably, the mounting opening of the vapor shield can be radially expanded on its upper side to form a countersink. On the subsidence adapted, laterally flared flanks of the bolt head can rest and press when tightening the Wrasenschirmplatte against the support member.

In the tightened state, the bolt extends through the Wrasenschirm-mounting opening and an aligned mounting hole in the support member. The attachment hole is formed in a recess of the support member. This results between the Wrasenschirmplatte and the support part a free space into which the bolt head can protrude without coming into contact with the support member.

The bolt head may preferably extend completely through the mounting opening of the Wrasenschirmplatte. As a result, on the one hand ensures a tight fit of the bolt in the mounting hole. In the event that the bolt head is designed as a plastic part, on the other hand, this can also prevent direct contact of the metal bolt on the glass material of Wrasenschirmplatte.

The support member may be made in two parts of a support plate part and a mounting plate part. On the support plate part, the Wrasenschirmplatte can be supported. The mounting plate may be connected to the side facing away from the Wrasenschirmplatte side with the support plate part and provides the above-mentioned recess, in which the bolt head can protrude.

In terms of manufacturing technology, the vapor shield plate can have a recess into which a chimney of the extractor device is inserted.

In a further aspect of the invention can be carried out when tightening the fastener automatically centering of the vapor shield with respect to the chimney. For this purpose, the fastening element and / or the vapor shield can have an inclined centering surface.

By way of example, an embodiment is explained in which both the fastening element and the vapor shield each have cooperating centering surfaces. When tightening the fastener, the cooperating centering slide on each other. The Wrasenschirm therefore shifts to a Zentrierweg. In this way, for example, a uniform gap between the fireplace and the, surrounding the chimney hood be set.

In a preferred embodiment, in each case a fastening element with the associated centering surfaces can be provided in a device side direction on both sides of the chimney. As a result, in oppositely directed centering paths, the vapor shield can be centered in the device side direction with respect to the chimney.

So that a displacement of the vapor shield is made possible over the centering path, the assembly opening provided in the vapor shield must be correspondingly geometrically adapted. It is particularly preferred if the mounting opening is a recess at an edge of the vapor shield which adjoins the chimney. The recess may be elongated in the direction of Zentrierweges or alternatively be open to the fireplace.

In the following, two embodiments of the invention will be described with reference to the attached figures.

Fig. 1

in einer perspektivischen Ansicht eine Dunstabzugshaube gemäß dem ersten Ausführungsbeispiel;

Fig. 2

eine vergrößerte Seitenschnittdarstellung gemäß dem ersten Ausführungsbeispiel;

Fig. 3

in einer perspektivischen Ansicht eine Dunstabzugshaube gemäß dem zweiten Ausführungsbeispiel; und

Fig. 4

eine der Fig. 2 entsprechenden Ansicht gemäß dem zweiten Ausführungsbeispiel.

Show it:

Fig. 1

in a perspective view of an extractor hood according to the first embodiment;

Fig. 2

an enlarged side sectional view according to the first embodiment;

Fig. 3

in a perspective view of an extractor hood according to the second embodiment; and

Fig. 4

one of the Fig. 2 corresponding view according to the second embodiment.

In the Fig. 1 According to the first embodiment as an extractor device by way of example mounted on a wall 2 extractor hood with a chimney 1 is shown. Its walls made of stainless steel plate limit an exhaust duct. At one, a cooktop, not shown, facing bottom suction 3 a Wrasenschirm 5 is provided for catching vapor or cooking vapor.

The vapor shield 5 is here a one-piece plate-shaped glass element which surrounds the chimney 1 at its rear side in the depth direction y with a central rectangular recess 7. The Wrasenschirmplatte 5 is according to the Fig. 1 on a dashed lines indicated support plate 9 made of sheet metal, which in turn is attached to the suction side 3 of the chimney 1. The support plate 9 projects over both sides of the chimney 1 in the lateral direction x and extends with two side bars 11 to the mounting wall 2. On the support plate 9, a control bar 13 is mounted in a known manner at the front and behind a filter element 15 is supported.

According to the invention, the Wrasenschirmplatte 5 can be solved without tools from the support plate 9 to clean the surfaces below the Wrasenschirmplatte 5 and the Wrasenschirmplatte 5 itself. For this purpose, the Wrasenschirmplatte 5 is attached via a manually operable fastener 17 to the support plate 9, as it according to the first embodiment of Fig. 2 is shown. The fastening element 17 is arranged in front of the chimney 1 in the depth direction y.

In the Fig. 2 is along the section plane II from the Fig. 1 a mounting state shown in which the Wrasenschirmplatte 5 by means of the fastener 17 on the sheet metal support plate 9 is screwed. The fastener 17 is made in two parts with a bolt 19 and a knurled nut 21, which tightens the bolt 19. The bolt 19 projects through a mounting opening 27 of the Wrasenschirmplatte 5 and overlaps the upper side with its bolt head 23, the opening edge of the mounting hole 27. For this purpose, the bolt head 23 is formed with a circumferential, radially to the pin axis 24 flared edge 25. The bolt head 23 is molded in the plastic injection molding process as a plastic part to the upper end of the bolt.

The bolt head 23 is supported via its lateral flanks 25 in a correspondingly contour-adapted depression 26 introduced on the upper side into the mounting opening 27. The bolt head 23 is thus aligned cleaning surface approximately flush with the top of Wrasenschirmplatte 5.

Like from the Fig. 2 further, the lateral flanks 25 of the bolt head 23 and the countersink 26 are in abutment with each other via their inclined centering surfaces 22, which extend vertically upwards. When tightening the bolt 19, the abutting centering 22 of the mounting hole 27 and the bolt head 23 move until the bolt head 23 is centered in the mounting hole 27 of the Wrasenschirmplatte 5.

Subsequent to the lateral flanks 25, the bolt head 23 has a shank 29 surrounding the metal bolt 19, which protrudes completely through the assembly opening 27 into a cup-shaped depression 35 of the support plate 9. The bolt 19 extends further through a bottom-side lead-through opening 38 of the recess 35 and is clamped on the side remote from the Wrasenschirmplatte 5 side with the knurled nut 21.

According to the Fig. 2 is the bottom of the recess 35 by a clearance a from the end face 33 of the bolt head 23 spaced. The bolt 19 can therefore be tightened by means of the knurled nut 21, without the bolt head 23 abuts the bottom of the recess 35.

The recess 35 is according to the Fig. 2 not formed directly in the support plate 9, but in an additional mounting plate part 37, with the underside of the support plate. 9 connected is. In contrast, a passage opening 39 is provided in the support plate 9, through which the bolt head 23 protrudes. The additional mounting plate part 37 can advantageously be subsequently connected to the support plate 9, without major structural changes to the support plate 9 being required.

In order to simplify tightening the knurled nut 21, the contour of the bolt head 23 with respect to the bolt longitudinal axis 24 is not round, preferably in a slot shape. Accordingly, the mounting hole 27 is contoured executed in elongated form, is received in the rotationally fixed the bolt head 23.

For assembly or disassembly of the Wrasenschirmplatte 5, the filter element 15 is first to be removed from the suction side 3. The filter element 15 is mounted in a conventional manner only below the Wrasenschirmplatte 5. With removed filter element 15, the knurled nut 21 is exposed. Subsequently, the knurled nut 21 can be unscrewed manually from the bolt 19, whereby the Wrasenschirmplatte 5 can be solved together with the fastener 17 of the support plate 9.

That in the Fig. 3 and 4 shown second embodiment corresponds in its structure and its operation in the Fig. 1 and 2 shown first embodiment, so that the same reference numerals are used for functionally identical components and reference is made to the above description.

In contrast to the first embodiment, the fastening element 17 is not arranged in the depth direction y in front of the chimney 1, but in the device side direction x one or both sides next to the chimney 1. The sectional view of Fig. 4 shows the mounting position of the fastener 17 along in the Fig. 3 indicated section plane II-II.

According to the Fig. 4 is the mounting hole 27 - in contrast to the first embodiment - not a completely enclosed by the glass material hole, but a recess which is incorporated in the edge of the recess 7 and the fireplace 1 is open. The recess 27 is formed analogously to the first embodiment as an elongated in the device side direction x slot.

The guided through the recess 27 bolt 19 is bolted to the up to the mounting wall 2 extending side web 11 of the support plate 9. The Indian Fig. 3 Profile web 11 shown in the profile of the support plate 9 is angled at its laterally outer end 39 at right angles down. The angled end 39 of the side web 11 is located within a raised side wall 41 of the filter element 15 indicated by a dashed line.

As already on the basis of Fig. 2 explained, also in the second embodiment, the side edges 25 of the bolt head 23 and the countersink 26 of the mounting hole 27 via inclined centering surfaces 22 in abutment. When tightening the bolt 19, their corresponding centering surfaces 22 can move together. Accordingly, the Wrasenschirmplatte 5 moves to a centering z in the device side direction x.

In one provided on both sides of the fireplace 1 arrangement of the in the Fig. 3 and 4 shown fastening element 17 is a centering of the Wrasenschirmplatte 5 with respect to the chimney 1 in the device side direction x simplified. Thus, in dependence on the depth of engagement of the provided on the left and right side of the chimney 1 bolt heads 23, the Wrasenschirmplatte 5 are moved over oppositely directed centering z in the lateral direction x. In this way, a uniform gap between the chimney 1 and the edge sides of the recess 7 of the Wrasenschirmplatte 5 is adjustable.

LIST OF REFERENCE NUMBERS

1

fireplace

3

suction

5

Wrasenschirmplatte

7

recess

9

support plate

11

sidebars

13

control panel

15

filter element

17

fastener

19

bolt

21

knurled nut

22

centering

23

bolt head

24

bolt longitudinal axis

25

lateral flanks of the bolt head

26

reduction

27

mounting hole

29

Bolt head shaft

33

Front side of the bolt head 23

35

deepening

37

Mounting plate part

38

Through opening

39

down angled end of the side bar 11

41

Side wall of the filter element 15

a

free space

x

lateral direction

y

Bautiefenrichtung

z

centering travel

Claims (12)

1. Fume vent device, especially extractor hood, with at least one vapour shield plate (5) made of preferably transparent material, and a carrier part (9), to which the vapour shield plate (5) is fastened via at least one fastening element (17), wherein the fastening element (17) is able to be loosened or tightened without tools for assembly/dismantling of the vapour shield plate (5), wherein the fastening element (17) has a bolt (19) with a bolt head (23) which presses the vapour shield plate (5) against the carrier part (9) and wherein the fastening element (17) has a clamping part (21) which clamps the bolt head (23) firmly against the carrier part (9) with the vapour shield plate (5) disposed between the two, characterised in that the bolt head (23) projects with its lower end face side (33) into a recess (35) of the carrier part (9) without touching said recess and that the carrier part (9) has a sheet metal installation part (37) which provides the recess (35), preferably on the side of the carrier part (9) facing away from the vapour shield plate (5), wherein the floor of the recess (35) is spaced by a free space (a) away from the end face side (33) of the bolt head (23).
2. Fume vent device according to claim 1, characterised in that the clamping part (21) is a clamping nut able to be actuated without tools, especially a knurled nut, which has a screw connection to the bolt (19).
3. Fume vent device according to claim 1, characterised in that the clamping part (21) is assigned to the bolt (19) in the manner of a quick-release clamp.
4. Fume vent device according to one of claims 1 to 3, characterised in that the bolt head (23) has an out-of-round contour in relation to its longitudinal bolt axis (24) with which it is held in a torsion-proof manner on the vapour shield plate (5).
5. Fume vent device according to one of claims 1 to 4, characterised in that that the bolt head (23) is disposed at least partly, preferably flush with the surface of the upper side of the vapour shield plate (5), in an indentation or undercut (26) of an installation opening (27) of the vapour shield plate (5).
6. Fume vent device according to one of the preceding claims, characterised in that an installation opening (27) provided for the fastening element (17) in the vapour shield plate (5) is embodied as a blind hole, in which the fastening element (17), especially the bolt (19), is embedded.
7. Fume vent device according to claim 5 or 6, characterised in that the installation opening (27) is embodied as an elongated hole in which the bolt head (23) is accommodated adapted to the contours.
8. Fume vent device according to one of claims 4 to 7, characterised in that the bolt (19) is integrated as a separate component into the bolt head (23), preferably by a plastic injection moulding method.
9. Fume vent device according to one of claims 1 to 8, characterised in that the clamping part (21) of the bolt (19) is clamped against a side of the carrier part (9) facing away from the vapour shield plate (5).
10. Fume vent device according to one of the preceding claims, characterised in that the carrier part (9) is assigned to a chimney (1), on the suction side (3) of which the vapour shield plate (5) is provided.
11. Fume vent device according to one of the preceding claims, characterised in that the fastening element (17) is disposed in the overall depth direction (y) on the front side in front of the chimney (1) or on one or both sides in the device side direction (x) next to the chimney (1) in each case.
12. Fume vent device according to one of the preceding claims, characterised in that the fastening element (17) and/or the vapour shield plate (5) has a centring surface (22) arranged at an angle, by means of which the vapour shield plate (5) is displaced around a centring path (z) when the fastening element (17) is clamped tight.

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