(19)
(11) EP 2 144 007 B1

(12) EUROPEAN PATENT SPECIFICATION

(45) Mention of the grant of the patent:
02.09.2015 Bulletin 2015/36

(21) Application number: 08012376.3

(22) Date of filing: 09.07.2008
(51) International Patent Classification (IPC): 
F24C 7/06(2006.01)
F24C 15/10(2006.01)

(54)

A supporting bracket for supporting a radiant heating device above a bottom panel of a cooking hob

Stützträger zum Tragen einer strahlenden Wärmevorrichtung auf einer Bodenplatte eines Kochfelds

Support pour dispositif de chauffage radiant au-dessus du panneau inférieur d'une plaque de cuisson


(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

(43) Date of publication of application:
13.01.2010 Bulletin 2010/02

(73) Proprietor: Electrolux Home Products Corporation N.V.
1130 Brussels (BE)

(72) Inventors:
  • Leyh, Björn
    74572 Blaufelden (DE)
  • Buck, Bernd
    91635 Windelsbach (DE)
  • Neukamm, Alwin
    91452 Wilhermsdorf (DE)

(74) Representative: Baumgartl, Gerhard Willi et al
Electrolux Dienstleistungs GmbH Group Intellectual Property
90327 Nürnberg
90327 Nürnberg (DE)


(56) References cited: : 
EP-A- 2 042 810
DE-A1- 3 037 965
DE-A1- 10 306 813
DE-U1- 29 602 012
DE-A1- 2 946 768
DE-A1- 3 204 760
DE-C1- 10 001 451
US-A1- 2002 033 390
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description


    [0001] The present invention relates to a supporting bracket for supporting a radiant heating device above a bottom panel of a cooking hob according to claim 1. Further, the present invention relates to a cooking hob with at least three supporting brackets according to claim 9.

    [0002] In a cooking hob with a glass-ceramic panel at least one radiant heating device is arranged below said glass-ceramic panel. The radiant heating device has to be resiliently supported above the bottom panel of the cooking hob.

    [0003] Resilient supporting brackets according to the prior art have such a geometric structure, that the supporting brackets may be easily deformed, in particular during the transport of the cooking hob. This may cause that the radiant heating device changes its position within the cooking hob. In this case a correct operation of the cooking hob cannot be guaranteed.

    [0004] A typical prior art supporting bracket is disclosed in document US 2002 0033390 A1.

    [0005] It is an object of the present invention to provide a supporting bracket for supporting a radiant heating device above the bottom panel of the cooking hob, wherein the supporting bracket prevents a motion of the radiant heating device and/or a deformation of the supporting bracket.

    [0006] The object of the present invention is achieved by the mounting system according to claim 1.

    [0007] According to the present invention the supporting bracket for supporting a radiant heating device above a bottom panel of a cooking hob comprises a mountable portion, a resilient portion, wherein:
    • the mountable portion comprises at least one sheet element and is attachable on the bottom panel,
    • the resilient portion comprises at least one sheet element and is bent up at an obtuse angle in relation to the mountable portion,
    • a bending is formed between the resilient portion and the mountable portion,
    • the resilient portion is provided for supporting a bottom of the radiant heating device
      characterized in that the supporting bracket further comprises a rigid portion wherein
    • the rigid portion comprises at least one sheet element and is bent up substantially at right angles with the mountable portion,
    • at least one further bending is formed between the rigid portion and the mountable portion,
    • the axes of the bending and further bending are arranged substantially perpendicular,
    • at least one edge of the sheet element of the rigid portion is provided for supporting a sidewall of the radiant heating device.


    [0008] The main idea of the present invention is the geometric form of the supporting bracket. When the resilient portion supports the bottom of the radiant heating device, then the radiant heating device loads the edge of the sheet element of the rigid portion, but not the further bending between the rigid portion and the mountable portion. The right angle between the bending and the further bending as well as the arrangement of the resilient portion in a radial direction effects that the force path from the radiant heating device extends parallel to the plane of the sheet element of the rigid portion.

    [0009] According to the preferred embodiment of the present invention the rigid portion comprises two sheet elements arranged at two opposite sides of the mountable portion. The two parallel edges of the sheet elements contribute to a stable position of the radiant heating device. For example, the two sheets of the rigid portion are formed symmetrically.

    [0010] Further, the mountable portion and the resilient portion comprise at least one common recess interrupting the bending between said mountable portion and resilient portion. The resilient properties of the supporting bracket can be affected by the geometric dimensions of the recess.

    [0011] Additionally, the resilient portion includes an appendix bent down at an obtuse angle in relation to the resilient portion.

    [0012] For example, the mountable portion comprises at least one recess for fastening the supporting bracket on the bottom panel of a cooking hob.

    [0013] Preferably, the supporting bracket is a one-piece element made of a metal sheet, in particular of steel, stainless steel or aluminium. In particular, the supporting bracket is made of a T-shaped sheet. This allows a simple production by low costs.

    [0014] The object of the present invention is also achieved by the cooking hob according to claim 9.

    [0015] According to the present invention the radiant heating device is supported above a bottom of the cooking hob by at least three supporting brackets as described above, wherein the resilient portions of the support brackets extend in a radial direction of the radiant heating device.

    [0016] Preferably, the supporting brackets are equally distributed along the circumferential side or sides, respectively, of the radiant heating device. The equal distribution of the supporting brackets contributes also to a stable position of the radiant heating device.

    [0017] The novel and inventive features believed to be the characteristic of the present invention are set forth in the appended claims.

    [0018] The invention will be described in further detail with reference to the drawings, in which
    FIG 1
    illustrates a schematic diagram of a perspective view of a supporting bracket according to a preferred embodiment of the present invention,
    FIG 2
    illustrates a schematic diagram of a perspective view of a radiant heating device with the supporting bracket according to the preferred embodiment of the present invention,
    FIG 3
    illustrates a schematic diagram of a detailed per-pective view of the radiant heating device with the supporting bracket according to FIG 2,
    FIG 4
    illustrates a schematic diagram of a perspective view of the radiant heating device supported on a bottom panel of a cooking hob according to the preferred embodiment of the present invention,
    FIG 5
    illustrates a schematic diagram of a sectional view of the radiant heating device supported on the bottom panel of the cooking hob according to FIG 4, and
    FIG 6
    illustrates a schematic diagram of a detailed sectional view of the supporting bracket below the radiant heating device according to FIG 5.


    [0019] FIG 1 illustrates a schematic diagram of a perspective view of a supporting bracket 10 according to a preferred embodiment of the present invention. The supporting bracket 10 includes a mountable portion 12, a resilient portion 14 and a rigid portion 16. The resilient portion 14 includes an appendix 18. The supporting bracket 10 may be formed from a metal sheet, in particular of steel, stainless steel or aluminium. In this example, the supporting bracket 10 is formed from a T-shaped sheet.

    [0020] The mountable portion 12 of the supporting bracket 10 is a plane sheet. It is provided to fix the mountable portion 12 directly on an upper surface of a bottom panel 30 of the' cooking hob. In a mounted state the mountable portion 12 extends in a horizontal plane.

    [0021] The resilient portion 14 is also a plane sheet element and extends upwards form the mountable portion 12. Thus, the resilient portion 14 forms an inclined plane in the mounted state. A first bending 20 is arranged between the mountable portion 12 and the resilient portion 14. The resilient portion 14 is bent up in relation to the mountable portion 12.

    [0022] At the end of the resilient portion 14 there is an appendix 18 formed as a sheet element. The appendix 18 is bent down in relation to the resilient portion 14. A second bending 22 is arranged between the resilient portion 14 and the appendix 18. The bending axes of the first bending 20 and the second bending 22 are parallel. The resilient portion 14 and the appendix 18 are formed from the vertical part of the original T-shaped sheet.

    [0023] The rigid portion 16 includes two sheet elements extending vertically in the mounted state. The planes of said sheet elements are parallel. The two sheets of the rigid portion are formed symmetrically. The distance between the sheet elements of the rigid portion 16 is similar to the widths of the mountable portion 12 and the resilient portion 14. The rigid portion 16 is formed from the horizontal part of the original T-shaped sheet.

    [0024] Two third bendings 24 are arranged between the mountable portion 12 and the rigid portion 16. The sheet elements of the rigid portion 16 are bent up in relation to the mountable portion 12, so that the rigid portion 16 includes two substantially vertical sheet elements. The bending axes of the third bendings 24 are perpendicular to the bending axis of the first bending 20.

    [0025] A common recess 26 is formed in the mountable portion 12 as well as in the resilient portion 14. The geometric dimensions of the common recess 26 affects the resilient properties of the supporting bracket 10. A recess 28 in the mountable portion 12 is provided for a fixing element in order to fasten the supporting bracket 10 on the bottom panel 20 of the cooking hob.

    [0026] FIG 2 illustrates a schematic diagram of a perspective view of a radiant heating device 32 with the supporting bracket 10 according to the preferred embodiment of the present invention. The radiant heating device 32 is substantially formed as a circular tray. At the outside of the radiant heating device 32 there is a control unit 36. Below the control unit 36 the radiant heating device 32 is supported by the supporting bracket 10 of FIG 1. The outer side of the radiant heating device 32 rests against the rigid portion 16 of the supporting bracket 10. The bottom side of the radiant heating device 32 rests against the appendix 18 and/or against the second bending 22 of the supporting bracket 10.

    [0027] FIG 3 illustrates a schematic diagram of a detailed perspective view of the radiant heating device with the supporting bracket according to FIG 2. FIG. 3 shows the position of the supporting bracket 10 related to the radiant heating device 32.

    [0028] FIG 4 illustrates a schematic diagram of a perspective view of the radiant heating device 32 supported on a bottom panel 30 of a cooking hob according to the preferred embodiment of the present invention. In this example, the radiant heating device 32 is supported on the bottom panel 30 by three supporting brackets 10 according to FIG 1. The radiant heating device 32 comprises the control unit 34 and heating elements 36 inside its body.

    [0029] FIG 5 illustrates a schematic diagram of a sectional view of the radiant heating device 32 supported on the bottom panel 30 of the cooking hob according to FIG 4. In particular, FIG 5 shows the positions of the single portions of the supporting bracket 10.

    [0030] FIG 6 illustrates a schematic diagram of a detailed sectional side view of the supporting bracket 10 below the radiant heating device 32 according to FIG 5. FIG 6 shows how the supporting bracket 10 supports resiliently the radiant heating device 32 at its bottom side.

    [0031] The resilient portion 14 of the supporting bracket 10 acts as a spring element and supports resiliently the radiant heating device 32 from the bottom. The rigid portion 16 of the supporting bracket 10 supports resiliently the radiant heating device 32 from the sidewall. The forces from the radiant heating device 32 act only to the edges of the sheets of the rigid portion 16.

    [0032] The supporting bracket 10 according to the present invention is made of one homogenous material. The special directions of the bending axes allow different elastic properties within the supporting bracket.

    [0033] Although illustrative embodiments of the present invention have been described herein with reference to the accompanying drawings, it is to be understood that the present invention is not limited to those preferred embodiments, and that various other changes and modifications may be affected therein by one skilled in the art without departing from the scope or spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as defined by the appended claims.

    List of reference numerals



    [0034] 
    10
    supporting bracket
    12
    mountable portion
    14
    resilient portion
    16
    rigid portion
    18
    appendix
    20
    first bending
    22
    second bending
    24
    third bending
    26
    common recess
    28
    recess
    30
    bottom panel
    32
    radiant heating device
    34
    heating element
    36
    control unit



    Claims

    1. A supporting bracket for supporting a radiant heating device (32) above a bottom panel (30) of a cooking hob, comprising a mountable portion (12), a resilient portion (14), wherein:

    - the mountable portion (12) comprises at least one sheet element and is attachable on the bottom panel (30),

    - the resilient portion (14) comprises at least one sheet element and is bent up at an obtuse angle in relation to the mountable portion (12),

    - a bending (20) is formed between the resilient portion (14) and the mountable portion (12),

    - the resilient portion (14) is provided for supporting a bottom of the radiant heating device (32),
    characterized in that the supporting bracket further comprises a rigid portion (16) wherein

    - the rigid portion (16) comprises at least one sheet element and is bent up substantially at right angles with the mountable portion (12),

    - at least one further bending (24) is formed between the rigid portion (16) and the mountable portion (12);

    - the axes of the bending (20) and further bending (24) are arranged substantially perpendicular, and

    - at least one edge of the sheet element of the rigid portion (16) is provided for supporting a sidewall of the radiant heating device (32).


     
    2. The supporting bracket according to claim 1,
    characterized in, that
    the rigid portion (16) comprises two sheet elements arranged at two opposite sides of the mountable portion (12).
     
    3. The supporting bracket according to claim 2,
    characterized in, that
    the two sheets of the rigid portion (16) are formed symmetrically.
     
    4. The supporting bracket according to any one of the preceding claims,
    characterized in, that
    the mountable portion (12) and the resilient portion (14) comprise a common recess (26) interrupting the bending (20) between said mountable portion (12) and resilient portion (14).
     
    5. The supporting bracket according to any one of the preceding claims,
    characterized in, that
    the resilient portion (14) includes an appendix (18) bent down at an obtuse angle in relation to the resilient portion (14).
     
    6. The supporting bracket according to any one of the preceding claims,
    characterized in, that
    the mountable portion (12) comprises at least one recess (28) for fastening the supporting bracket (10) on the bottom panel (30) of a cooking hob.
     
    7. The supporting bracket according to any one of the preceding claims,
    characterized in, that
    the supporting bracket (10) is a one-piece element made of a metal sheet, in particular of steel, stainless steel or aluminium.
     
    8. The supporting bracket according to claim 7,
    characterized in, that
    the supporting bracket (10) is made of a T-shaped sheet.
     
    9. A cooking hob with a glass-ceramic panel and at least one radiant heating device (32),
    characterized in, that
    the radiant heating device (32) is supported above a bottom (30) of the cooking hob by at least three supporting brackets (10) according to any one the claims 1 to 10, wherein the resilient portions (14) of the support brackets (10) extend in a radial direction of the radiant heating device (32).
     
    10. The cooking hob according to claim 9,
    characterized in, that
    the supporting brackets (10) are equally distributed along the circumferential side or sides, respectively, of the radiant heating device (32).
     


    Ansprüche

    1. Stützträger zum Tragen einer strahlenden Wärmevorrichtung (32) auf einer Bodenplatte (30) eines Kochfelds, umfassend einen montierbaren Abschnitt (12), einen elastischen Abschnitt (14), wobei:

    - der montierbare Abschnitt (12) mindestens ein Plattenelement umfasst und an der Bodenplatte (30) befestigt werden kann,

    - der elastische Abschnitt (14) mindestens ein Plattenelement umfasst und in einem stumpfen Winkel in Bezug auf den montierbaren Abschnitt (12) nach oben gebogen ist,

    - eine Biegung (20) zwischen dem elastischen Abschnitt (14) und dem montierbaren Abschnitt (12) ausgebildet ist,

    - der elastische Abschnitt (14) zum Tragen einer Unterseite der strahlenden Wärmevorrichtung (32) bereitgestellt ist,
    dadurch gekennzeichnet, dass der Stützträger ferner einen starren Abschnitt (16) umfasst, wobei

    - der starre Abschnitt (16) mindestens ein Plattenelement umfasst und im Wesentlichen im rechten Winkel in Bezug auf den montierbaren Abschnitt (12) nach oben gebogen ist,

    - mindestens eine weitere Biegung (24) zwischen dem starren Abschnitt (16) und dem montierbaren Abschnitt (12) ausgebildet ist;

    - die Achsen der Biegung (20) und weitere Biegungen (24) im Wesentlichen senkrecht angeordnet sind; und

    - mindestens ein Rand des Plattenelements des starren Abschnitts (16) zum Tragen einer Seitenwand der strahlenden Wärmeeinrichtung (32) bereitgestellt ist.


     
    2. Stützträger nach Anspruch 1, dadurch gekennzeichnet, dass der starre Abschnitt (16) zwei Plattenelemente auf zwei gegenüberliegenden Seiten des montierbaren Abschnitts (12) umfasst.
     
    3. Stützträger nach Anspruch 2, dadurch gekennzeichnet, dass die beiden Platten des starren Abschnitts (16) symmetrisch ausgebildet sind.
     
    4. Stützträger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der montierbare Abschnitt (12) und der elastische Abschnitt (14) eine gemeinsame Vertiefung (26) umfassen, welche die Biegung (20) zwischen dem montierbaren Abschnitt (12) und dem elastischen Abschnitt (14) unterbricht.
     
    5. Stützträger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der elastische Abschnitt (14) einen Fortsatz (18) aufweist, der in einem stumpfen Winkel in Bezug auf den elastischen Abschnitt (14) nach unten gebogen ist.
     
    6. Stützträger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der montierbare Abschnitt (12) mindestens eine Vertiefung (28) zum Befestigen des Stützträgers (10) an der Bodenplatte (30) eines Kochfelds umfasst.
     
    7. Stützträger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stützträger (10) ein einstückiges Element ist, das aus einer Metallplatte hergestellt ist, insbesondere aus Stahl, Edelstahl oder Aluminium.
     
    8. Stützträger nach Anspruch 7, dadurch gekennzeichnet, dass der Stützträger (10) aus einer T-förmigen Platte hergestellt ist.
     
    9. Kochfeld mit einer Glaskeramikplatte und mindestens einer strahlenden Wärmevorrichtung (32), dadurch gekennzeichnet, dass die strahlende Wärmevorrichtung (32) auf einem Boden (30) des Kochfelds von mindestens drei Stützträgern (10) nach einem der Ansprüche 1 bis 10 getragen wird, wobei sich die elastischen Abschnitte (14) der Stützträger (10) in eine radiale Richtung der strahlenden Wärmevorrichtung (32) erstrecken.
     
    10. Kochfeld nach Anspruch 9, dadurch gekennzeichnet, dass die Stützträger (10) gleichmäßig entlang der Umfangsseite bzw. -seiten der strahlenden Wärmevorrichtung (32) verteilt sind.
     


    Revendications

    1. Support destiné à supporter un dispositif de chauffage par rayonnement (32) au-dessus d'un panneau inférieur (30) d'une table de cuisson, comprenant une partie de fixation (12) et une partie élastique (14)

    - la partie de fixation (12) comprenant au moins un élément de type plaque et pouvant être attachée sur le panneau inférieur (30),

    - la partie élastique (14) comprenant au moins un élément de type plaque et étant courbée vers le haut en formant un angle obtus par rapport à la partie de fixation (12),

    - un coude (20) étant formé entre la partie élastique (14) et la partie de fixation (12),

    - la partie élastique (14) étant prévue pour supporter une partie inférieure du dispositif de chauffage par rayonnement (32),
    caractérisé en ce que le support comprend en outre une partie rigide (16),

    - la partie rigide (16) comprenant au moins un élément de type plaque et étant courbée vers le haut essentiellement à angle droit par rapport à la partie de fixation (12),

    - au moins un autre coude (24) étant formé entre la partie rigide (16) et la partie de fixation (12) ;

    - les axes du coude (20) et de l'autre coude (24) étant positionnés de façon à être essentiellement perpendiculaires, et

    - au moins un bord de l'élément de type plaque de la partie rigide (16) étant prévu pour supporter une paroi latérale du dispositif de chauffage par rayonnement (32).


     
    2. Support selon la revendication 1,
    caractérisé en ce que
    la partie rigide (16) comprend deux éléments de type plaque disposés sur deux côtés opposés de la partie de fixation (12).
     
    3. Support selon la revendication 2,
    caractérisé en ce que
    les deux plaques de la partie rigide (16) sont formées symétriquement.
     
    4. Support selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la partie de fixation (12) et la partie élastique (14) comprennent un évidement commun (26) interrompant le coude (20) entre lesdites partie de fixation (12) et partie élastique (14).
     
    5. Support selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la partie élastique (14) comprend un appendice (18) incliné vers le bas en formant un angle obtus par rapport à la partie élastique (14).
     
    6. Support selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la partie de fixation (12) comprend au moins un évidement (28) en vue de la fixation du support (10) sur le panneau inférieur (30) d'une table de cuisson.
     
    7. Support selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le support (10) est un élément monobloc constitué d'une plaque métallique, en particulier d'acier, d'acier inoxydable ou d'aluminium.
     
    8. Support selon la revendication 7,
    caractérisé en ce que
    le support (10) est constitué d'une plaque en forme de T.
     
    9. Table de cuisson comportant un panneau en vitrocéramique et au moins un dispositif de chauffage par rayonnement (32),
    caractérisée en ce que
    le dispositif de chauffage par rayonnement (32) est supporté au-dessus d'un fond (30) de la table de cuisson par au moins trois supports (10) selon l'une quelconque des revendications 1 à 10, les parties élastiques (14) des supports (10) s'étendant dans une direction radiale du dispositif de chauffage par rayonnement (32).
     
    10. Table de cuisson selon la revendication 9,
    caractérisée en ce que
    les supports (10) sont répartis uniformément le long du ou des côtés circonférentiels, respectivement, du dispositif de chauffage par rayonnement (32).
     




    Drawing














    Cited references

    REFERENCES CITED IN THE DESCRIPTION



    This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

    Patent documents cited in the description