EP3814686B1 - Ensemble plaque de cuisson-hotte aspirante - Google Patents

Ensemble plaque de cuisson-hotte aspirante Download PDF

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Publication number
EP3814686B1
EP3814686B1 EP19732395.9A EP19732395A EP3814686B1 EP 3814686 B1 EP3814686 B1 EP 3814686B1 EP 19732395 A EP19732395 A EP 19732395A EP 3814686 B1 EP3814686 B1 EP 3814686B1
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EP
European Patent Office
Prior art keywords
hob
frame
assembly
extractor hood
disposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19732395.9A
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German (de)
English (en)
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EP3814686A1 (fr
Inventor
Lorenzo BIAGINI
Lorenzo Lispi
Nebojsa Zecevic
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BS Service Srl
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BS Service Srl
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Publication of EP3814686A1 publication Critical patent/EP3814686A1/fr
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Publication of EP3814686B1 publication Critical patent/EP3814686B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • F24C15/103—Tops, e.g. hot plates; Rings electrically heated being movable or rotatable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2028—Removing cooking fumes using an air curtain
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2035—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft

Definitions

  • the present invention refers to a hob-extractor hood assembly.
  • a kitchen generally comprises a hob and an extractor hood disposed above the hob in order to extract the fumes that are produced when cooking.
  • Extractor hoods are known, which are built-in in a worktop that supports the hob. These extractor hoods are known as downdraft extractor hoods because they move vertically. A downdraft extractor hood can move from a lowered position, in which it is flush with the worktop, to a raised position, wherein an extraction opening of the extractor hood protrudes in upper position relative to the worktop and is directed towards the hob in order to extract the fumes.
  • DE102015104470 and EP3168537 disclose a hob with at least one heating surface unit that can be lowered in order to heat a vessel.
  • the purpose of the present invention is to eliminate the drawbacks of the prior art by providing a hob-extractor hood assembly that is efficient and aesthetically pleasant.
  • Another purpose of the present invention is to provide such a hob-extractor hood assembly that is reliable, practical, versatile, and easy to make and install.
  • the hob-extractor hood assembly of the invention is defined in claim 1.
  • Such hob-extractor hood assembly has the following advantages.
  • the extractor hood does not protrude from the hob and creates no obstacle. Therefore, the hob can be accessed from the four sides and said hob-extractor hood assembly is suitable for being installed in a kitchen island.
  • the installation and the maintenance are simple because the extractor hood is fixed.
  • the hob and extractor hood assembly is disclosed, which is generally indicated with reference numeral (100).
  • the assembly (100) comprises a hob (1) and an extractor hood (2) suitable for being mounted in a worktop intended to support the hob (1).
  • the hob (1) comprises burners (10) that are preferably induction plates.
  • the hob (1) is supported by a box-shaped frame (11) suitable for containing a support structure for operating the burners (10).
  • the extractor hood (2) comprises a frame that comprises:
  • the internal lateral walls (23) have an extraction opening (26) ( Fig. 2B ) disposed in upper longitudinal position to let the air pass.
  • a lower chamber (C1) is defined between the base plate (23) and the upper plate (23).
  • Two lateral chambers (C2) are defined between the external lateral walls (21) and the internal lateral walls (23). The lateral chambers (C2) are in communication with the lower chamber (C1).
  • Filter units (3) are disposed in the lateral chambers (C2). Each filter unit (3) is fixed to the external and internal lateral walls (21, 23) of the frame of the hood by means of magnets (33). A lid (32) is disposed on the filter unit (3) in order to close the lateral chamber (C2).
  • the lid (32) can be a glass sheet.
  • Each filter unit (3) comprises a grease filter (30) disposed in the extraction opening (26) of the internal lateral wall, and an odor filter (31) disposed under the grease filter (30).
  • the grease filter (30) may comprise a wavy sheet metal with a labyrinth path in order to hold the grease.
  • the odor filter (31) may comprise an odor-absorbing material, such as a ceramic material.
  • the extractor hood (2) may be additionally provided with a back chamber and/or a front chamber disposed in a back position or in a front position relative to the hob.
  • the back chamber and the front chamber are in communication with the lower chamber (C1) and filter units are disposed in the back chamber and/or in the front chamber.
  • a box (24) with a fan (35) suitable for extracting the air is mounted under the base plate (20) of the frame of the extractor hood.
  • the box (24) of the fan is in communication with the lower chamber (C1).
  • the frame (11) of the hob is mounted with possibility of sliding vertically in a housing (S) defined between the upper plate (22) and the internal lateral walls (23) of the frame of the extractor hood.
  • the hob (1) can be moved from a raised position ( Figs. 2A , 10A ), wherein the hob (1) is at the same level as the lids (32) of the lateral chambers (C2) and the fan (25) cannot generate an air flow, to a lowered position ( Figs.
  • drive means (4) drive a vertical translation of the hob (1) relative to the frame of the extractor hood (2).
  • the drive means (4) comprise guides (40) mounted in the frame of the extractor hood, and slides (41) fixed to the frame (11) of the hob and slidingly mounted in the guides (40).
  • guides (40) may be provided, each of them being disposed in each internal lateral wall (23) of the frame of the extractor hood, and two slides (41) may be disposed in each lateral border of the frame (11) of the hob.
  • actuation means (5) move the hob (1) between the raised position and the lowered position, and vice versa.
  • An electronic unit (6) is disposed in a box under the base plate of the frame of the extractor hood in order to control the fan (25) of the extractor hood and the actuation means (5) of the hob.
  • a control panel (7) ( Fig.1 ) is disposed in a front position relative to the hob (1) in order to be used by the user.
  • the control panel (7) comprises keys or knobs to actuate the actuation means (5) in order to lower and raise the hob and actuate the fan (25) of the extractor hood.
  • the actuation means (5) comprise at least one linear actuator (50) disposed in vertical position.
  • the linear actuator (50) is disposed centrally in a housing (S1) obtained in the frame of the extractor hood in communication with the housing (S) of the frame of the extractor hood that receives the frame (11) of the hob.
  • Figs. 3A and 3B only show one linear actuator disposed centrally, multiple linear actuators may be provided in different positions.
  • the linear actuator (50) comprises a cylinder-piston unit (51), in which the cylinder is fixed to the base plate (20) of the frame of the extractor hood and a stem (52) of the piston is fixed to the frame (11) of the hob.
  • the cylinder-piston unit can be of electric, pneumatic, hydraulic or magnetic type.
  • Other types of linear actuators can be used instead of the cylinder-piston unit, such as screw-mother screw, pinion-rack and the like.
  • actuation means (105) comprise actuators (150) disposed in lateral position relative to the frame (11) of the hob.
  • Each actuator (150) comprises a toothed wheel (151) that engages with a rack (152).
  • the toothed wheel (151) is revolvingly mounted in the frame of the extractor hood and is actuated by an electric motor.
  • the rack (152) is fixed to the lateral border of the frame (11) of the hob.
  • the actuation means (205) comprise a linear actuator (50) disposed in horizontal position in order to actuate a follower (253) that cooperates with a cam (12) that protrudes in lower position from the frame (11) of the hob.
  • the follower (253) and the cam (12) have a geometrical shape suitable for converting the horizontal movement of the linear actuator (50) in a vertical movement of the hob (1).
  • the follower (253) and/or the cam (12) can have a wedge-like shape.
  • the follower (253) has an inclined plane (254) and a horizontal plane (255).
  • the cam (12) has a horizontal plane (13) and an inclined plane (14).
  • the hob (1) is in raised position ( Fig. 4A )
  • the horizontal planes (255, 13) of the follower and of the cam are in mutual contact.
  • the inclined plane (154) of the follower slides on the inclined plane (14) of the cam, lowering the hob (1).
  • the actuation means (305) comprise at least one eccentric cam (350) that cooperates with a lower wall of the frame (11) of the hob.
  • the eccentric cam (350) has a practically elliptical shape with a major axis (a).
  • the eccentric cam is pivoted in an eccentric pivoting axis (351).
  • the eccentric cam (350) is moved by moving means, such as a motor or an actuator, in such a way to rotate around its eccentric pivoting axis (351).
  • moving means such as a motor or an actuator
  • the hob (1) is in raised position ( Fig. 6A ).
  • the hob (1) is in lowered position ( Fig. 6B ).
  • Figs. 6A and 6B only show one eccentric cam (350) disposed centrally, multiple eccentric cams may be provided in different positions.
  • a possible moving system of the eccentric cam (350) is disclosed.
  • Such a moving system comprises a linear actuator (50) disposed in horizontal position.
  • the stem (52) of the linear actuator is connected to a rack (355) that engages with a toothed wheel (356) integral with the eccentric cam (350).
  • the axis of rotation of the toothed wheel (356) coincides with the eccentric pivoting axis (351) of the eccentric cam.
  • the actuation means (405) comprise a linear actuator (50) disposed in horizontal position that moves a lever mechanism (9) suitable for lowering and raising the hob (1).
  • the lever mechanism (9) can be of scissors, pantograph or lazy tongue type, and the like.
  • the lever mechanism (9) is of scissors type.
  • the lever mechanism (9) comprises two levers (90, 91) that are hinged in a pivot (92) disposed in a central position of the levers.
  • a first end (90a) of the first lever (90) is connected to the stem (52) of the linear actuator (50), and a second end (90b) of the first lever can slide under the frame (11) of the hob.
  • a first end (91a) of the second lever (91) can slide on the base plate (20) of the frame of the extractor hood, and a second end (91b) of the second lever can slide under the frame (11) of the hob.
  • the lever mechanism (109) comprises a first lever (190) with a first end (190a) connected to the stem (52) of the linear actuator, and a second end pivoted at a first end of a second lever (191) in a pivot (192), which is mounted with possibility of sliding vertically in a slot (193) obtained in a flange fixed to the frame (11) of the extractor hood.
  • a second end (191b) of the second lever can slide under the frame (11) of the hob.
  • a second embodiment of the assembly which is not part of the invention is disclosed, which is generally indicated with reference numeral 200.
  • the assembly (200) comprises a hob (1) supported by a frame (11) and two extractor hoods (2) suitable for being mounted in a worktop intended to support the hob (1).
  • Each extractor hood (2) comprises a box (24).
  • Each box (24) contains a fan (25) that blows air outside the box, and a lateral chamber (C2).
  • the boxes (24) are mounted in adjacent position to the lateral chambers (C2) along each side of the hob (1), in such a way that the sum of the lengths of a box (24) and of a lateral chamber (C2) is equal to the length of the side of the hob (1).
  • the box (24) of one side of the hob is disposed in front of a lateral chamber (C2) of the other side of the hob; otherwise said, each lateral chamber (C2) is disposed on one side of the hob (1) opposite to the side with the box (24).
  • Each extractor hood (2) comprises a filter unit (3) disposed in the lateral chamber (C2), and a lid (32) that closes the lateral chamber (C2) on the filter unit (3).
  • the lateral chamber (C2) has an upper extraction opening (226).
  • the upper extraction opening (226) of each lateral chamber (C2) is obtained in upper position relative to the lateral chamber (C2).
  • Each box (24) comprises a delivery outlet (24a) for emitting the air delivered by the fan (25) and an extraction outlet (24b).
  • the delivery outlet (24a) is directed towards the hob (1) and towards the upper extraction opening (226) of the lateral chamber (C2) disposed on the opposite side of the hob.
  • the fan (25) comprises a mouth directed towards the delivery outlet (24a) of the box (24) in such a way that, when the fan (25) is in operation, an air flow (F5) blown by the fan (25) is pushed towards the extraction openings (226) of the lateral chambers (C2).
  • the extraction outlet (24b) allows the fan to extract the air from the exterior.
  • the assembly (200) comprises a housing (S) defined between the box (24) and the lateral chamber (C2).
  • the frame (11) of the hob is mounted in the housing (S), with possibility of sliding vertically.
  • the assembly (200) comprises drive means (4) to guide the vertical translation movement of the frame (11) of the hob relative to the extractor hood (2), and actuation means (5; 105; 205; 305; 405) to move the hob (1).
  • the drive means (4) and the actuation means (5; 105; 205; 305; 405) are exactly the same as the ones described with reference to the first embodiment of the assembly (100).
  • the assembly (200) translates from a raised position, in which the hob (1) covers the delivery outlets (24a) of the boxes (24), to a lowered position, in which the hob (1) is under the level of the delivery outlets (24a) of the boxes (24) and under the level of the upper extraction opening (226) of the lateral chambers (C2), in such a way that an air flow (F5) blown by the fan (25) tends to flow in contact with the surface of the hob (1) because of the Coand effect, generating such a depression that vapors and odors coming from the pots disposed on the hob (1) are conveyed towards the air flow (F5) that touches the hob.
  • the air flow (F5) blown by the fan (25) transports the vapors and odors coming from the pots disposed on the hob (1) towards the extraction opening (26) of the lateral chamber (C2) disposed on the opposite site of the hob (1) relative to the fan (25) that generates the air flow (F5).
  • the assembly (200) can comprise only one extractor hood (2) with a fan (25) disposed in a box (24) positioned on one side of the hob (1) and a lateral chamber (C2) disposed on one side of the hob (1) opposite to the side with the box.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Outer Garments And Coats (AREA)
  • Seal Device For Vehicle (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Claims (10)

  1. Ensemble (100) comprenant un plan de cuisson (1) soutenu par un châssis (11) et une hotte (2) destinée à être montée dans un plan de travail qui doit soutenir le plan de cuisson (1) ;
    la hotte (2) comprend :
    - un châssis comprenant une plaque de base (20) de laquelle s'élèvent des parois latérales externes (21), et une plaque supérieure (22) de laquelle s'élèvent des parois latérales internes (23) ; les parois latérales internes (23) ayant des ouvertures d'aspiration (26) disposées longitudinalement et supérieurement pour le passage de l'air ;
    - une chambre inférieure (C1) définie entre la plaque de base (20) et la plaque supérieure (22) ;
    - deux chambres latérales (C2) définies entre les parois latérales externes (21) et les respectives parois latérales internes (23) ; les chambres latérales (C2) étant en communication avec la chambre inférieure (C1) ;
    - des groupes filtre (3) disposés dans les chambres latérales (C2) ;
    - des couvercles (32) qui ferment les chambres latérales (C2) au-dessus des groupes filtre (3) ;
    - un ventilateur (25) disposé dans une boîte (24) qui communique avec la chambre inférieure (C1) ;
    - un emplacement (S) défini entre la plaque supérieure (22) et les parois latérales internes (23) du châssis de la hotte ;
    où ledit châssis (11) du plan de cuisson est monté coulissant verticalement dans ledit emplacement (S) du châssis de la hotte pour se déplacer d'une position soulevée, où le plan de cuisson (1) se trouve au niveau des couvercles (32) des chambres latérales (C2), à une position abaissée où le plan de cuisson (1) se trouve au-dessous du niveau des couvercles (32) des chambres latérales (C2), de manière à laisser libres les ouvertures d'aspiration (26) des parois latérales du châssis de la hotte ;
    ledit ensemble (100) comprenant :
    - des moyens de guidage (4) pour guider le mouvement de déplacement vertical du châssis (11) du plan de cuisson par rapport au châssis de la hotte ; et
    - des moyens d'activation (5; 105; 205; 305; 405) pour déplacer ledit plan de cuisson (1).
  2. Ensemble (100) selon la revendication 1, où lesdits moyens de guidage (4) comprennent des guides (40) montés dans le châssis de la hotte et des patins (41) fixés au châssis (11) du plan de cuisson et montés coulissants dans les guides (40).
  3. Ensemble (100) selon l'une quelconque des revendications précédentes, où lesdits moyens d'activation (5) comprennent au moins un actionneur linéaire (50) disposé verticalement entre le châssis de la hotte et le châssis (11) du plan de cuisson.
  4. Ensemble (100) selon l'une quelconque des revendications précédentes, où lesdits moyens d'activation (105) comprennent un actionneur (50; 50) comprenant une roue dentée (151) activée par un moteur électrique qui s'embraie dans une crémaillère (152) fixée sur un bord latéral du dit châssis (11) du plan de cuisson.
  5. Ensemble (100) selon la revendication 1 ou 2, où lesdits moyens d'activation (205) comprennent un actionneur linéaire (50) disposé horizontalement pour activer un suiveur (253) qui coopère avec une came (12) qui déborde inférieurement du châssis (11) du plan de cuisson ; le suiveur (253) et la came (12) ayant une forme géométrique apte à transformer le mouvement horizontal de l'actionneur linéaire (50) en un mouvement vertical du plan de cuisson.
  6. Ensemble (100) selon la revendication 5, où le suiveur (253) et/ou la came (12) ont une forme cunéiforme.
  7. Ensemble (100) selon la revendication 1 ou 2, où lesdits moyens d'activation (305) comprennent des moyens de déplacement qui déplacent au moins une came excentrique (350) qui coopère avec une paroi inférieure du châssis (11) du plan de cuisson ; la came excentrique (350) ayant une forme essentiellement elliptique avec un axe majeur (a) et étant pivotée sur un axe de pivotement excentrique (351).
  8. Ensemble (100) selon la revendication 7, où lesdits moyens de déplacement de la came excentrique comprennent un actionneur linéaire (50) disposé horizontalement qui déplace une crémaillère (355) qui s'embraie dans une roue dentée (356) solidaire à ladite came excentrique (350).
  9. Ensemble (100) selon la revendication 1 ou 2, où lesdits moyens d'activation (405) comprennent un actionneur linéaire (50) qui déplace un engrenage à levier (9; 109) apte à abaisser et soulever le plan de cuisson (1).
  10. Ensemble (100) selon la revendication 9, où ledit engrenage à levier (9; 109) est du type à ciseau, pantographe ou lazy tongue.
EP19732395.9A 2018-06-29 2019-06-26 Ensemble plaque de cuisson-hotte aspirante Active EP3814686B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000006807A IT201800006807A1 (it) 2018-06-29 2018-06-29 Gruppo piano cottura e cappa.
PCT/EP2019/067053 WO2020002456A1 (fr) 2018-06-29 2019-06-26 Ensemble plaque de cuisson-hotte aspirante

Publications (2)

Publication Number Publication Date
EP3814686A1 EP3814686A1 (fr) 2021-05-05
EP3814686B1 true EP3814686B1 (fr) 2024-01-24

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Application Number Title Priority Date Filing Date
EP19732395.9A Active EP3814686B1 (fr) 2018-06-29 2019-06-26 Ensemble plaque de cuisson-hotte aspirante

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EP (1) EP3814686B1 (fr)
IT (1) IT201800006807A1 (fr)
WO (1) WO2020002456A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020125817A1 (de) * 2020-10-02 2022-04-07 Miele & Cie. Kg Dunstabzugseinheit zum Verbau unterhalb eines Kochfeldes, Filtereinheit, Dunstabzugssystem und Verfahren zum Betreiben eines Dunstabzugssystems
US20240167697A1 (en) * 2022-11-22 2024-05-23 Whirlpool Corporation Venthob with integrated induction coil

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011008428A1 (de) * 2010-06-17 2011-12-22 Exklusiv-Hauben Gutmann Gmbh Abzugsvorrichtung
ITMI20101427A1 (it) * 2010-07-29 2012-01-30 Smeg Spa Gruppo piano di cottura
DE102015104470B4 (de) * 2015-03-25 2021-06-02 Miele & Cie. Kg Kochfeld sowie ein Verfahren zum Betreiben eines Kochfeldes
DE102015119310A1 (de) * 2015-11-10 2017-05-11 Miele & Cie. Kg Kochvorrichtung

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Publication number Publication date
IT201800006807A1 (it) 2019-12-29
WO2020002456A1 (fr) 2020-01-02
EP3814686A1 (fr) 2021-05-05

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