WO2017005310A1 - Dispositif de cuisson - Google Patents

Dispositif de cuisson Download PDF

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Publication number
WO2017005310A1
WO2017005310A1 PCT/EP2015/065502 EP2015065502W WO2017005310A1 WO 2017005310 A1 WO2017005310 A1 WO 2017005310A1 EP 2015065502 W EP2015065502 W EP 2015065502W WO 2017005310 A1 WO2017005310 A1 WO 2017005310A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooking device
tray
tray support
end position
actuating
Prior art date
Application number
PCT/EP2015/065502
Other languages
English (en)
Inventor
Sena Davasligil
Ersin Donmez
Ramazan Ridvan SEKMEN
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to PCT/EP2015/065502 priority Critical patent/WO2017005310A1/fr
Publication of WO2017005310A1 publication Critical patent/WO2017005310A1/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
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens

Definitions

  • the present invention relates to a cooking device in particular comprising a lifting assembly for vertically displacing a tray inside the cooking chamber.
  • carrying assemblies having supporting means for holding a tray and a movement mechanism for moving upwards/downwards the tray.
  • the height of the tray held by the supporting means inside the oven can be adjusted before and/or during the cooking process so that the cooking effectiveness is increased.
  • a cooking device comprising a movement mechanism is for instance described in the United States Patent No. US5429043.
  • the cooking device therein disclosed comprises a motor which provides the mode of power to move the trays in the vertical direction.
  • the motor is activated and deactivated by a switch that is located on the external panel of the cooking device and that is controlled by the user.
  • the main drawback of this cooking device resides on the fact that the user needs to actively control the functioning of the motor by means of the switch so that an automatic movement of the tray during the cooking process is impracticable.
  • a different cooking device comprising a lifting assembly that allows an automatic movement of the tray during the cooking process is for instance disclosed in the German Patent Application No. DE102009029463A1.
  • the lifting assembly comprises a movement mechanism actuated by a motor and a plurality of sensors vertically spaced apart along the whole vertical displacement path of the tray and connected to a control unit managing the operation of the motor.
  • Said cooking device however requires high production costs and it is difficult to be maintained due to the presence of a plurality of sensors.
  • the sensors placed at the lower part of the cooking chamber, where higher temperature values are reached can easily get damaged and jeopardize the correct functioning of the movement mechanism.
  • the aim of the present invention is the realization of a cooking device allowing an automatic and safe vertical displacement of a tray, without incurring the risk of damaging the motor or the mechanical components of the movement mechanism.
  • a further object of the present invention is the realization of a cooking device which is easy and economical to be produced and to be maintained and which is operationally reliable over time.
  • the cooking device realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a lifting assembly associated to the casing that delimits the cooking chamber, which lifting assembly comprises a movement mechanism for displacing the tray inside the cooking chamber along a vertical path and a stopping mechanism for arresting the displacement of the tray when it reaches a lower end position, close to the bottom wall delimiting the cooking chamber, or an upper end position, close to the top wall delimiting the cooking chamber in order to avoid possible damages to the motor or to the mechanical components of the movement mechanism such as the transmission means.
  • the stopping mechanism of the cooking device comprises mechanical actuating means, configured to interfere with the tray support in the lower end position or in the upper end position, and switching means, actionable by the mechanical actuating means for interrupting the motor functioning when the tray reaches one of the end positions.
  • the switching means is placed at the top wall of the casing, thus being less exposed to elevated temperatures that could damage it.
  • the actuating means is movable between a resting position, in which they don’t interfere with the switching means, and at least one actuating position in which they exert a pressure on the switching means for actuating them.
  • the actuating means is movable toward a first actuating position, toward which they are moved when the tray support reaches the end position close to the bottom wall, and a second actuating position, toward which they are moved when the tray support reaches the end position close to the top wall.
  • the switching means comprises two switches: a first switch, actionable by the actuating means in the first actuating position, and a second switch, actionable by the actuating means in the second actuating position.
  • the lifting assembly further comprises a support body having guiding means for guiding the tray support on its vertical displacement.
  • the support body comprises an upper fixed element and a lower fixed element limiting the vertical displacement path of the tray support.
  • the stopping mechanism as well as the movement mechanism, is mounted on the support body.
  • the actuating means comprises a first vertical rod vertically displaceable and a protrusion, which is fixed to the lower extremity of the first rod and which is configured to engage with the tray support when the latter reaches the lower end position for displacing the first rod toward the bottom wall.
  • the stopping mechanism further comprises a bracket having a bottom transversal end connected to the upper extremity of the first rod and an upper transversal end configured to engage with the switching means for activating it when the first rod is displaced toward the bottom wall.
  • the actuating means further comprises a second vertical rod vertically displaceable and having a lower extremity configured to engage with the tray support when the latter reaches the upper end position for being displaced toward the top wall and an upper extremity configured to engage with the switching means for activating it when the second rod is displaced toward the top wall.
  • the casing delimiting a cooking chamber further comprises two lateral walls and the lifting assembly comprises two movement mechanisms and two stopping mechanisms, each associated to a respective lateral wall.
  • the motors of the two movement mechanisms are functioning independently from each other.
  • the switching means of the two stopping mechanisms are configured for interrupting the motor functioning of the respective movement mechanism when the tray support of the respective movement mechanism reaches one of the end positions.
  • the cooking device further comprises a weight sensor for sensing the weight of the foodstuff placed on the tray.
  • the cooking device further comprises a control unit associated to the weight sensor and to the switching means, for receiving from them inputs concerning the weight of the foodstuff on the tray and the position of the tray, and associated to the motor for managing its functioning based on the inputs received from the weight sensor and the switching means.
  • Figure 1 – is a partial perspective view of a cooking device according to the invention, comprising a lifting assembly.
  • Figure 2 – is a frontal view of a particular of the lifting assembly of the cooking device according to the invention, relative to a stopping mechanism.
  • Figures 3 and 4 – are respectively a perspective view and an exploded view of a detail of the stopping mechanism of Figure 2.
  • Figure 5 – is a frontal view of the lifting assembly of the cooking device according to the invention with a tray support of a movement mechanism placed in an intermediate position between a lower end position and an upper end position along a vertical displacement path.
  • Figure 6 – is a perspective view of an enlarged detail of the lifting assembly of Fig. 5.
  • Figure 7 – is a frontal view of the lifting assembly of the cooking device according to the invention with the tray support placed in a lower end position.
  • Figure 8 – is a perspective view of an enlarged detail of the lifting assembly of Fig. 7.
  • FIGS 9 and 10 – are frontal views of a particular of the lifting assembly of the cooking device according to the invention, wherein the tray support is placed respectively in an intermediate position between the lower end position and the upper end position and in the upper end position.
  • the cooking device 1 comprises a casing 2 having a bottom wall 4, a top wall 5, two side walls 6 and a rear wall delimiting a cooking chamber 3 and which is frontally closed by a door (not illustrated).
  • the cooking device 1 further comprises a lifting assembly 7 associated to the casing 2.
  • the cooking device 1 further comprises an outer wall (not illustrated) surrounding the casing 2, configured as a box with front side open, and the lifting assembly 7 is mounted between the casing 2 and the outer wall.
  • the lifting assembly 7 comprises a movement mechanism 8 having a tray support 9, for supporting inside the cooking chamber 3 a tray T aimed to support the foodstuffs to be cooked, a motor 10 and transmission means 11 for transmitting the motion of the motor 10 to the tray support 9 in order to displace it along a vertical path between a lower end position, close to the bottom wall 4 as illustrated in Figures 7 and 8, and an upper end position, close to the top wall 5 as illustrated in Figure 10.
  • a movement mechanism 8 having a tray support 9, for supporting inside the cooking chamber 3 a tray T aimed to support the foodstuffs to be cooked, a motor 10 and transmission means 11 for transmitting the motion of the motor 10 to the tray support 9 in order to displace it along a vertical path between a lower end position, close to the bottom wall 4 as illustrated in Figures 7 and 8, and an upper end position, close to the top wall 5 as illustrated in Figure 10.
  • the transmission means 11 comprises a leading screw 12, actionable by the motor 10 to rotate around its axis and bearing the tray support 9.
  • the tray support 9 is vertically displaceable along the screw 12 upon rotation of the latter.
  • the lifting assembly 7 further comprises a stopping mechanism 13 for arresting the displacement of the tray support 9 when the latter reaches the lower end position or the upper end position.
  • the stopping mechanism 13 comprises a mechanical actuating means 14, configured to interfere with the tray support 9 when the latter reaches the lower end position or the upper end position, and switching means 15, actionable by the actuating means 14, electrically connected to the motor 10 and placed at the top wall 5 of the casing 2. More clearly the switching means 15 is placed on, above or nearby the top wall 5 of the casing 2, in any case in proximity of the upper part of the casing 2. In the embodiment illustrated in the attached Figure 1, the switching means 15 is placed above the top wall 5 of the casing 2.
  • the switching means 15 is actionable by the mechanical actuating means 14 for interrupting the motor 10 functioning when the tray support 9 reaches one of the end positions.
  • the actuating means 14 is movable between a resting position, in which it doesn’t interfere with the switching means 15, and one or more actuating positions in each of which it exerts a pressure on the switching means 15 for actuating it and which actuating positions are reachable upon interference with the tray support 9.
  • the tray support 9 when reaching either the lower end position, illustrated in Figures 7 and 8, or the upper end position, illustrated in Figure 10, interferes with the actuating means 14 moving it toward an actuating position, as illustrated in Figures 7 or 10.
  • the actuating means 14 is movable toward a first actuating position, illustrated in Figure 7, reachable upon interference with the tray support 9 in the lower end position, as illustrated in Figure 8, and toward a second actuating position, illustrated in Figure 10, reachable upon interference with the tray support 9 in the upper end position as illustrated in the same figure.
  • the switching means 15 comprises a first switch 16, actionable by the actuating means 14 in the first actuating position, as illustrated in Figure 7, for interrupting the functioning of the motor 10 when the tray support 9 reaches the lower end position, as illustrated in Figures 7 and 8, and a second switch 17, actionable by the actuating means 14 in the second actuating position, as illustrated in Figure 10, for interrupting the functioning of the motor 10 when the tray support 9 reaches the upper end position, as illustrated in the same figure.
  • the presence of two distinct switches allows to clearly distinguish the position of the tray support 9, either at the lower end position or at the upper end position.
  • the switches are advantageously connected to a control unit which, on the basis of the information received on the position of the tray support 9, operates the motor 10 accordingly.
  • the motor is a reversible motor which can be operated in opposite rotation directions so as to consequently move the tray support 9 toward the top wall 5 or the bottom wall 4.
  • first switch 16 and the second switch 17 are advantageously snap action switches, which ensure an optimal reliability also in a demanding environment, such as the one associated to the cooking device, are inexpensive and long lasting.
  • the stopping mechanism 13 comprises elastic restoring means 18, such as for instance one or more compression springs, for forcing the actuating means 14 toward the resting position. This allows the actuating means 14 to return to the resting position once the tray support 9 moves from the lower end position, illustrated in Figure 8, or from the upper end position, illustrated in Figure 10.
  • the lifting assembly 7 further comprises a support body 19 having guiding means 20 for guiding the tray support 9 on its vertical displacement.
  • the guiding means 20 may comprise one or more guiding rods on which the tray support 9 is slidably mounted, as illustrated in attached Figures 6 and 8.
  • the support body 19 comprises an upper fixed element 21 and a lower fixed element 22, between which the tray support 9 is vertically displaceable, limiting hence the vertical displacement path of the tray support 9 inside the cooking chamber 3.
  • the tray support 9 in the lower end position is placed in proximity of the lower fixed element 22, as illustrated in Figures 7 and 8, while in the upper end position is placed in proximity of the upper fixed element 21 as illustrated in Figure 10.
  • the stopping mechanism 13, such as the movement mechanism 8, is mounted on the support body 19.
  • the support body 19, bearing both the stopping mechanism 13 and the movement mechanism 8, allows to easily mount them on the casing 2 and it provides both support and protection to their components.
  • the actuating means 14 comprises a first vertical rod 23 vertically displaceable, in particular mounted on the support body 19 free to slide vertically, and a protrusion 24, which is fixed to the lower extremity of the first rod 23.
  • the protrusion 24 is configured to engage with the tray support 9 when the latter reaches the lower end position, as illustrated in Figure 8, for displacing the first rod 23 toward the bottom wall 4.
  • the actuating means 14 reaches the first actuating position, illustrated in Figure 7, when the first rod 23 is displaced toward the bottom wall 4, as illustrated in Figure 8.
  • the stopping mechanism 13 further comprises a bracket 25, illustrated in Figures 3 and 4, having a bottom transversal end 26 connected to the upper extremity of the first rod 23 and an upper transversal end 27 configured to engage with the switching means 15 for activating it when the first rod 23 is displaced toward the bottom wall 4, as illustrated in Figure 7.
  • the upper transversal end 27 of the bracket 25 is configured to engage with the first switch 16.
  • the bracket 25 allows the actuating means 14 to act on the switching means 15 by exerting a pressure on it.
  • the actuating means 14 further comprises a second vertical rod 28 vertically displaceable and having a lower extremity configured to engage with the tray support 9 when the latter reaches the upper end position, illustrated in Figure 10, for being displaced toward the top wall 5 and an upper extremity configured to engage with the switching means 15 for activating it when the second rod 28 is displaced toward the top wall 5, as illustrated in Figure 10.
  • the upper extremity of the second vertical rod 28 is configured to engage with the second switch 17.
  • the actuating means 14 reaches the second actuating position, illustrated in Figure 10, when the second rod 28 is displaced toward the top wall 5.
  • the lifting assembly 7 comprises two movement mechanisms 8 and two stopping mechanisms 10, each associated to a respective side wall 6 of the casing 2. This ensures a more secure support for the tray T during its vertical displacement.
  • the motors 10 of the two movement mechanisms 8 are functioning independently from each other, so that one motor can be activated while the other is not activated. Generally the two motors 10 are operated synchronized in order to ensure an even displacement of the tray T.
  • the switching means 15 of the two stopping mechanisms 13 are configured for interrupting the motor 10 functioning of the respective movement mechanism 8 when the tray support 9 of the respective movement mechanism 8 reaches one of the end positions.
  • the fact that the motors 10 are functioning independently from each other and that the switching means 15 are controlling the functioning just of the respective motor 10 allows to compensate any misalignment that could be generated during the movement of the tray T, so that the tray supports 9 of both the movement mechanisms 8 will in any case reach its respective end position.
  • the cooking device 1 further comprises a weight sensor for sensing the weight of the foodstuff placed on the tray T.
  • the weight sensor by providing information on the weight of the foodstuff on the tray, allows the cooking device 1 to determine the correct parameters for an optimal cooking of the foodstuff and moreover the correct parameters of the functioning of the motor 10.
  • the cooking device 1 further comprises a control unit associated to the weight sensor and to the switching means 15, for receiving from them inputs concerning the weight of the foodstuff on the tray T and the position of the tray T, and associated to the motor 10 for managing its functioning based on the inputs received from the weight sensor and the switching means 15.
  • a control unit associated to the weight sensor and to the switching means 15, for receiving from them inputs concerning the weight of the foodstuff on the tray T and the position of the tray T, and associated to the motor 10 for managing its functioning based on the inputs received from the weight sensor and the switching means 15.
  • control unit is programmed to determine the functioning parameters of the motor 10 based on the expected distance that should be covered by the tray support 9 loaded with foodstuff of known weight and based on the initial position of the tray support 9, determined on the basis of the information received from the switching means 15.
  • the lifting assembly 7 is economical to be produced and to be maintained and it is operationally reliable over time, since the most delicate components of the lifting assembly 7, i.e. the switching means, are positioned on the part of the cooking device less exposed to high temperatures.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

La présente invention concerne un dispositif de cuisson (1), qui comprend : - un corps (2) délimitant une chambre de cuisson (3) et comprenant une paroi de fond (4) et une paroi supérieure (5), et - un ensemble de levage (7) associé au corps (2) et comprenant un mécanisme de déplacement (8) doté d'un support de plateau (9) pour porter un plateau (T) à l'intérieur de la chambre de cuisson (3), un moteur (10) et des moyens de transmission (11) pour transmettre le mouvement du moteur (10) au support de plateau (9) afin de la déplacer le long d'un trajet vertical entre une position d'extrémité inférieure, à proximité de la paroi de fond (4), et une position d'extrémité supérieure, à proximité de la paroi supérieure (5).
PCT/EP2015/065502 2015-07-07 2015-07-07 Dispositif de cuisson WO2017005310A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/065502 WO2017005310A1 (fr) 2015-07-07 2015-07-07 Dispositif de cuisson

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/065502 WO2017005310A1 (fr) 2015-07-07 2015-07-07 Dispositif de cuisson

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WO2017005310A1 true WO2017005310A1 (fr) 2017-01-12

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PCT/EP2015/065502 WO2017005310A1 (fr) 2015-07-07 2015-07-07 Dispositif de cuisson

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110236401A (zh) * 2019-06-03 2019-09-17 华帝股份有限公司 一种防碰撞结构及应用其的烹饪设备
EP3845817A1 (fr) * 2019-12-30 2021-07-07 Arçelik Anonim Sirketi Dispositif de cuisson comprenant une pierre de cuisson

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5543784A (en) * 1993-11-30 1996-08-06 Mendenhall; Donna M. Oven occupancy warning apparatus
DE102009029463A1 (de) * 2009-09-15 2011-03-24 BSH Bosch und Siemens Hausgeräte GmbH Gargerät mit einem höhenverstellbaren Garraumelement
WO2013026789A1 (fr) * 2011-08-22 2013-02-28 Arcelik Anonim Sirketi Four comprenant un support mobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5543784A (en) * 1993-11-30 1996-08-06 Mendenhall; Donna M. Oven occupancy warning apparatus
DE102009029463A1 (de) * 2009-09-15 2011-03-24 BSH Bosch und Siemens Hausgeräte GmbH Gargerät mit einem höhenverstellbaren Garraumelement
WO2013026789A1 (fr) * 2011-08-22 2013-02-28 Arcelik Anonim Sirketi Four comprenant un support mobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110236401A (zh) * 2019-06-03 2019-09-17 华帝股份有限公司 一种防碰撞结构及应用其的烹饪设备
CN110236401B (zh) * 2019-06-03 2024-02-27 华帝股份有限公司 一种防碰撞结构及应用其的烹饪设备
EP3845817A1 (fr) * 2019-12-30 2021-07-07 Arçelik Anonim Sirketi Dispositif de cuisson comprenant une pierre de cuisson

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