Device for operating a cooking hob system

Abstract

Operating device (3) for operating a cooktop system (1), comprising a control element (13) and a fastening device (14, 32, 41, 43, 47, 53, 58, 63) for fastening the control element (13) to a kitchen cabinet, comprising a plurality of pin-shaped elements (24, 34, 44, 48, 55, 60) and a fixing means (26, 35, 50), wherein a plurality of the pin-shaped elements (24, 34, 44, 48, 55, 60) each have a partial threaded section (25, 57), wherein the fixing means (26, 35, 50) has a nut (28) with one or more fixing threaded sections (29) which are designed to fit the partial threaded sections (25, 57). such that the nut (28, 36, 56) interacts with a majority of the partial thread sections (29).

Description

[0001] The content of the German patent application DE 10 2024 206 141.7 is incorporated herein by reference.

[0002] The invention relates to an operating device for operating a built-in kitchen appliance. The invention also relates to a built-in kitchen appliance with such an operating device. Finally, the invention relates to a method for mounting an operating device for a built-in kitchen appliance.

[0003] Cooktops are typically operated via touch-sensitive controls (so-called touch panels) or by means of control knobs. Corresponding cooktop systems are known, for example, from DE 10 2009 025 038 A1 and EP 1 944 553 B1 and DE 10 2016 217 724 A1. A control knob for operating a cooktop is known from DE 20 2009 009 727 U1.

[0004] One object of the invention is to improve an operating device for operating a built-in kitchen appliance (operating device). In particular, one object of the invention is to provide an operating device for a built-in kitchen appliance that enables better, and especially simpler and / or more reliable, installation.

[0005] This problem is solved by an operating device according to claim 1.

[0006] According to one aspect, the operating device has a fastening device for attaching a control element to a kitchen furniture, which has a holder with a plurality of pin-shaped elements and a fixing means which interacts with a plurality of the pin-shaped elements.

[0007] Information regarding the interaction of the fixing agent with a majority of the pin-shaped elements relates in particular to the intended use of the operating device, especially its intended arrangement in or on a kitchen cabinet.

[0008] Furthermore, it should be noted that the application includes different alternatives of the operating device, which – at least partially – do not make use of all the features of the subject matter of claim 1. The features of claim 1 are not to be understood as mandatory features with regard to possible subsequent applications and / or divisional applications. In particular, they may be omitted or implemented in alternative ways in alternative embodiments of the operating device.

[0009] In general, the operating device has a fastening device, wherein the fastening device has at least one pin-shaped element relative to which, in particular in the direction of its longitudinal axis, at least one fixing means can be fixed.

[0010] The bracket can be used to hold the control element.

[0011] Preferably, the operating device can be designed as an operating knob.

[0012] According to one aspect, the operating device has exactly one fixing element which interacts with a plurality of the pin-shaped elements. In particular, it can have a single fixing element.

[0013] The fixing agent may, in particular, include a threaded nut.

[0014] The pin-shaped elements are also referred to as pin-shaped extensions.

[0015] Threaded bolts are particularly suitable as pin-shaped elements. These pin-shaped elements can have one or more partial thread sections, especially on their outer circumferential side and / or on their inner circumferential side. It is also possible that only a subset of the pin-shaped elements has thread sections, while another subset has no thread sections.

[0016] The pin-shaped extensions can also be designed as metal rods, in particular as threaded rods, especially as metal fine thread rods.

[0017] This can make applying the fixative easier.

[0018] One variant in which all pin-shaped elements have threaded sections with which the fixing agent interacts results in a particularly stable arrangement of the fastening device on the kitchen furniture.

[0019] The control element can, in particular, have a circular, annular or polygonal cross-section.

[0020] The control element can be rotatably mounted on the mounting device. It can, in particular, have a component that is rotatably mounted relative to the mounting device.

[0021] The rotatably mounted component of the control element can, in particular, have an annular cross-section.

[0022] The control element may include operating electronics. In particular, it may include all the operating electronics for controlling one or more functions of the built-in kitchen appliance.

[0023] The control electronics can be located entirely in front of or outside the kitchen unit. Preferably, the control electronics are located entirely within the control element. The control electronics may preferably include a circuit board. The term "circuit board" is used below to refer specifically to the control electronics as such, even if they do not necessarily include a circuit board.

[0024] The control element can, in particular, comprise a circuit board. The circuit board can, in particular, be annular in shape. It can, in particular, have a width of at most 3 cm, in particular at most 2 cm, in particular at most 1 cm. The width is measured in the radial direction.

[0025] The circuit board can be arranged in a cavity, in particular an encapsulated cavity, in particular a liquid-tight encapsulated cavity, of the control element.

[0026] The control element can have one or more magnets. These can serve to mount the control element. In particular, they can enable self-aligning positioning of the control element.

[0027] Using one or more magnets, haptic feedback is also possible when the control element is rotated.

[0028] The control element can have one or more Hall sensors.

[0029] The operating element can be mechanically or magnetically mounted, in particular on the bracket. It can, in particular, have one or more detent elements, especially with ball detents.

[0030] The control element may include a lighting device. The lighting device may include at least one light source, in particular one or more light-emitting diodes (LEDs).

[0031] The control element can have one or more transparent areas and / or one or more roughened areas and / or one or more polished areas. An area is understood here to mean, in particular, a simply contiguous surface.

[0032] The control element may, in particular, have a hollow shaft.

[0033] Further aspects and details of the control element will become apparent from the description of the exemplary embodiments.

[0034] According to one aspect, the fastening device has at least two, preferably three or more pin-shaped elements. A higher number of pin-shaped elements can result in a more stable arrangement of the fastening device on a furniture front.

[0035] Preferably, the fastening device has at most 6, in particular at most 4, preferably 3 or 2 pin-shaped elements, or exactly one pin-shaped element. A smaller number of pin-shaped elements results in simpler, and in particular faster, assembly.

[0036] One aspect is that the mounting device, or parts thereof, can be interchangeable. In particular, pin-shaped elements of varying lengths can be provided. This allows for easy adaptation of the mounting device to the ceiling of a mounting surface, especially a kitchen cabinet front panel.

[0037] The pin-shaped elements can be formed as a single unit with the bracket. This can result in particularly advantageous stability. It can also simplify the manufacture of the fastening device. Alternatively, the pin-shaped elements can be screwed into the bracket, inserted through openings in the bracket, inserted into recesses in the bracket, or clipped onto the bracket.

[0038] The pin-shaped elements can also be designed separately from the bracket. In particular, they can be designed to clamp the bracket to a furniture front.

[0039] The side of the mounting device facing the user when operating the kitchen appliance during its intended use, and in particular its arrangement, is hereinafter referred to as the front, and the opposite side, facing away from the user, is referred to as the back. The front of the operating device is, in particular, its visible side.

[0040] According to one variant, the fixing device has several nuts. In particular, the fixing device can have a separate nut for screwing onto each of the pin-shaped elements.

[0041] Cap nuts can be used as a fixing device.

[0042] According to one variant, the pin-shaped elements each have a locking section. This locking section can be engaged with a corresponding counter-locking section in the fixing device. The locking connection can be reversibly releasable or irreversibly releasable, in particular not releasable without damage, especially in the manner of a reversibly releasable or irreleasable cable tie.

[0043] The fixing devices can also include locking elements. For example, locking tabs can serve as locking elements. The locking elements are preferably reversibly releasable. The locking element can consist of several parts.

[0044] The fixing devices may have wave springs. This ensures a certain contact pressure.

[0045] According to one aspect, the holder for the control element can be designed as a ring-shaped plate on which the control element is reversibly removable or permanently arranged.

[0046] The ring-shaped plate can form a contact surface, particularly on its back, for mounting against a furniture front. This results in a particularly stable and reliable arrangement of the operating device on the furniture front.

[0047] The plate can be relatively thin. In particular, it can have a thickness of no more than 5 mm, in particular no more than 3 mm, in particular no more than 1 mm. A thicker design can result in a more stable construction.

[0048] The bracket can be made of metal or plastic.

[0049] The bracket can have a circular, annular, or polygonal cross-section. The cross-section of the bracket is preferably adapted to the cross-section of the control element. Preferably, the bracket is not visible, at least from the front, when the control element is attached.

[0050] The mounting can include, in particular, mechanical and / or magnetic retaining means for holding the control element. These retaining means can include, in particular, retaining tabs, openings, screws, permanent magnets, or ferromagnetic elements for interaction with permanent magnets. Combinations of such elements are also possible.

[0051] The control element can be detachably, in particular reversibly detachably, arranged on the bracket.

[0052] The reversible removal of the control element allows it to be removed, for example, when not in use or for cleaning purposes. A removable control element can also serve as a child safety lock.

[0053] The control element can also be permanently mounted on the bracket.

[0054] A fixed arrangement of the control element on the bracket is understood in particular to mean that the control element cannot be removed from the bracket without tools and / or without destruction.

[0055] According to one aspect, the partial thread sections can together form sections of a single thread. In particular, they can be designed such that their threaded parts are aligned along a single, continuous thread line.

[0056] The fixing thread sections of the nut can, in particular, form a single, continuous thread. This makes it easier to screw the nut onto the pin-shaped extensions with the partial thread sections.

[0057] According to one aspect, the partial thread sections can be identically designed. In particular, it can be intended that the pin-shaped extensions be designed identically. This can simplify manufacturing.

[0058] With identically shaped, pin-shaped extensions, the partial thread sections do not need to form partial sections of a continuous thread. However, this is possible.

[0059] According to another aspect, the nut has a number and arrangement of fixing thread sections that correspond to the number and arrangement of the partial thread sections.

[0060] For example, in the case of three threaded bolts, the nut can have three fixing thread sections. Generally, the number of fixing thread sections can exactly match the number of threaded bolts.

[0061] The threaded bolts can be arranged evenly distributed around the circumference of the bracket.

[0062] The fixing thread sections of the nut can each extend over angular ranges that are smaller than the angular distance between adjacent threaded bolts. This allows the nut to be fitted onto the bolt.

[0063] The fixing thread sections can be designed in such a way that they can each engage with exactly one of the partial thread sections.

[0064] The fixing element can also be attached to the pin-shaped extensions using a bayonet-like mechanism. This allows the fixing element to be attached to the pin-shaped extensions with a single movement. For this purpose, it can be brought into a position that is past its center of rotation.

[0065] According to another aspect, the fastening device has at least one opening for a signal-transmitting element.

[0066] The installation may involve a cavity, in particular a cable duct, especially for routing a signal cable through a furniture front.

[0067] According to one aspect, the opening can be formed in one, two, three, or all of the pin-shaped extensions. In principle, the opening can also be formed by the pin-shaped extension itself. The pin-shaped extension can also limit the opening section by section, in particular at least on one side.

[0068] The pin-shaped extension can, for example, be groove-shaped, half-tube-shaped, or tubular.

[0069] In particular, it is possible to integrate a cable feedthrough into one or more, especially all, of the pin-shaped extensions.

[0070] Preferably, the embodiment may include a signal-transmitting element in the form of at least one cable and / or at least one circuit board. The at least one circuit board may be elongated, in particular with a length-to-width ratio of at least 2, in particular at least 4, in particular at least 6. The at least one circuit board may have at least one connection means, in particular a plug-in connection means, in particular at least one socket and / or at least one plug, in particular an edge-card connector, in particular for reversible connection to another, in particular subsequent, signal-transmitting element. Preferably, at least one connection means is provided at both ends of the elongated circuit board. The connection means may be metallurgically bonded to the circuit board, in particular soldered.

[0071] The at least one signal-transmitting element can be configured for power supply, in particular for lighting, in particular for LED lighting, in particular for an LED driver, and / or for data transmission, in particular for control data for controlling a cooktop and / or a range hood, and / or for monitoring the functionality of the operating device. At least one line for each of the aforementioned functions can be provided for this purpose.

[0072] Preferably, the at least one circuit board is attached to the fastening device, in particular to the at least one extension, in particular by positive locking, in particular by snapping, and / or by material locking, in particular by gluing, and / or by force locking and / or in a reversibly detachable manner.

[0073] The at least one circuit board may contain electronic components and / or, in particular exclusively, comprise at least one electrical conductor.

[0074] The feedthrough can be designed so that the signal-transmitting element can be inserted or is inserted longitudinally into the circuit board and / or the feedthrough. The feedthrough can be tubular or completely enclose the resulting cavity.

[0075] The feedthrough can alternatively or additionally be designed such that the signal-transmitting element can be inserted into, or is inserted into, the circuit board and / or the feedthrough in a transverse direction. The feedthrough can have a lateral opening, in particular a longitudinal slot, or only partially enclose the cavity formed by this opening. The feedthrough can be formed in one or more of the pin-shaped extensions, in particular in all of them or in a reduced number of extensions compared to the total number of extensions. For example, with several extensions, in particular three, exactly one extension can have a feedthrough, in particular with a circuit board arranged therein.

[0076] The feedthrough and the circuit board can therefore be designed for longitudinal insertion and / or lateral insertion of the circuit board into the feedthrough.

[0077] The pin-shaped extensions can themselves form signal-transmitting elements. This can lead to a reduction in cable length. Furthermore, it can ensure a particularly reliable signal connection to the control element.

[0078] According to another aspect, the fixing device has a support ring to brace the pin-shaped extensions.

[0079] The fixing agent can generally be multi-part, especially two-part.

[0080] According to another aspect, the support ring can be designed to be spring-like.

[0081] This allows pressure to be exerted on the back of a board, especially a furniture front.

[0082] The support ring can be designed in the form of a disc spring. It can also have several spring elements, for example leaf springs, disc springs or wave springs.

[0083] According to another aspect, the nut can be locked to the support element, in particular the support ring. It can generally be detachably fixed to the support ring.

[0084] To lock the nut to the support ring, one or more, in particular three, locking tabs may be provided. The locking tabs may have retaining lugs which may, in particular, engage an edge of the support ring. The locking tabs may, in particular, be spring-mounted. The locking tabs may, in particular, be arranged on the outside of an elongated hole. In this case, they may be connected to the support ring by thin webs. The webs may, in particular, have a width of not more than 5 mm, in particular not more than 3 mm.

[0085] According to another aspect, the nut is rotatably mounted on the support element, particularly the support ring, relative to the support element. This facilitates the application of the nut to the fastening device, especially the pin-shaped extensions. When the nut is screwed onto the pin-shaped extensions, the latter can be supported by the support ring against a load transverse to their axis.

[0086] According to another aspect, the nut can be spring-mounted on the support element, in particular the support ring, in the screwing direction. This allows a specific contact pressure of the support ring against the back of a furniture front to be achieved.

[0087] According to another aspect, the fastening device, especially the fixing element, can contain plastic components. In particular, it is possible to manufacture all components of the fastening device from plastic. This can allow for particularly simple production.

[0088] The fastening device may also contain metal components, especially those made of non-corrosive metal. This can result in particularly high stability and load-bearing capacity.

[0089] A kitchen appliance can be improved by means of an operating device according to the invention. The kitchen appliance can be, in particular, a cooktop, a range hood, or a combination appliance with a cooktop and range hood. This list is not exhaustive.

[0090] According to an independent aspect, which constitutes a separate subject matter of the invention but can be optionally combined with the other features, the operating device can have a central recess, particularly on the front of the operating device. This aspect is particularly advantageous even without the fastening device, especially without the one or more pin-shaped elements and / or the fixing means.

[0091] The central recess can penetrate the mounting device and / or the operating element. The central recess is preferably designed such that the kitchen furniture, in particular a kitchen wall, especially a kitchen front, is not obscured by the operating device in a front view. The central recess is preferably round, in particular circular, in a top view.

[0092] Preferably, the control element, in particular a rotatably mounted component of the control element, especially the knob cover, and / or a circuit board, in particular a circuit board with at least one illumination element, and / or at least part of the mounting device, are designed in an annular shape, in particular a circular shape. This allows, in particular, the central recess to be provided. Preferably, the rotatably mounted component of the control element surrounds the central recess in an annular shape, in particular a circular shape.

[0093] According to a separate aspect, which constitutes an independent subject matter of the invention but can be optionally combined with the other features, the operating device can have at least one lighting element, in particular an LED, especially a white LED, an RGB LED, and / or an RGBW LED. A main direction of light emission from the lighting element can be oriented, at least with respect to one directional component, and in particular exclusively, towards a rear and / or a front and / or a side surface of the operating device. This advantageously achieves particularly uniform illumination, especially with a reduction in intensity differences.

[0094] According to a separate aspect, which constitutes an independent subject matter of the invention but can be optionally combined with the other features, the operating device, in particular the control element and / or the mounting device, can have at least one reflector for reflecting the light emitted by the at least one lighting means, in particular towards a front and / or a side surface of the operating device. The at least one lighting means can be oriented such that a main direction of emission of the emitted light is directed towards the front and / or the rear and / or a side surface of the operating device. The reflector can be flat or curved, in particular concave and / or convex. A curved design allows for a more uniform illumination.Basically, using at least one reflector offers the advantage that a particularly compact design can be achieved and / or a particularly targeted influence on the light distribution is possible and / or the beam path of the light can be designed in a particularly targeted way, even in a small space.

[0095] In addition to the reflector, a masking element, in particular a masking ring, made especially of impermeable plastic, may be provided. The masking element is also referred to as a baffle. The masking element can limit the at least one lighting element to the outside and / or inside and / or to one side and / or prevent the lighting element from emitting light in an undesired direction, especially laterally. The light is preferably emitted, or in particular guided, only to the desired area, especially a light guide. Preferably, the light should be emitted, or in particular guided, forwards.

[0096] Preferably, the operating device can be designed such that the light emitted by the at least one lighting means is emitted forwards and / or inwards and / or outwards, in particular with respect to an annular component of the operating device, especially on the inner and / or outer surface of a light guide.

[0097] Preferably, the at least one lighting means can emit the light in the opposite direction to the direction in which it emits from the operating device, in particular via the light guide.

[0098] According to a preferred aspect, the central recess can offer a view of the kitchen furniture. Alternatively, a decorative element can be arranged in the central recess, which preferably has and / or corresponds to the surface finish of the kitchen furniture, in particular the furniture wall, especially the furniture front, and especially the furniture wall on which the operating device is attached. The decorative element is preferably disc-shaped, in particular circular. It can be connected to the operating device by force-fit, form-fit, and / or material-fit, in particular by bonding.

[0099] The operating device can have several lighting elements that can be controlled separately, in particular for emitting light of different brightness and / or different colors.

[0100] A lighting control system can be specifically designed to output information about the current heating output, the fan speed of the extractor hood, the cooktop temperature, and / or the operating status of the cooktop and / or extractor hood to the user via the at least one lighting element. For this purpose, the lighting control system can be in signal communication with, and / or be integrated with, the control system of the at least one cooktop and / or extractor hood.

[0101] Preferably, the operating device comprises a light guide element, which is preferably annular, particularly circular, and / or functions as a diffuser and / or a focusing element. The light guide element is preferably an integral part of the operating element and / or the mounting device. The light guide element can be illuminated by the at least one illumination means. Preferably, the light guide element defines the central recess, particularly its entire circumference. This allows the central recess to be illuminated by the at least one illumination means via the light guide element. The information displayed to the user by means of the illumination is thus particularly easy to perceive, especially in the area where the user inputs information via the operating element. This places the central area at the user's focal point and is therefore particularly suitable for conveying relevant information.

[0102] The light guide can alternatively or additionally limit the outer circumference of the control element and / or the mounting device, at least in sections, and in particular completely.

[0103] In particular, the at least one lighting means can be designed such that the light guide body can be illuminated independently of each other on an inner and an outer side and / or on the inner and outer sides of the operating device.

[0104] The light guide can be made of one piece or multiple pieces.

[0105] The mounting of the rotating parts of the control element, in particular the toggle cover, can be done by means of rolling bearings, in particular ball bearings, and / or by means of plain bearings.

[0106] Preferably, at least one bearing is connected to the rotatable part, in particular to the toggle cover, by means of a force-fit connection, in particular by means of a press fit, and / or by means of a pressure piece and / or magnetically.

[0107] The rotational position between the rotatable part of the control element, in particular the knob cover, and a base body, in particular the mounting device, is preferably detected by means of a Hall sensor. Other sensors for detecting a rotational movement are also suitable, for example a rotary encoder with a coding disc and / or a push button and / or the like.

[0108] Preferably, the fastening device, in particular the fixing threaded sections and / or the partial threaded sections, is designed such that tilting of the joining partners, especially the fixing threaded sections and the partial threaded sections, is reliably prevented. For this purpose, for example, at least one threaded section can be interrupted, at least partially, in particular in the circumferential direction, and in particular slotted, with longitudinal slots.

[0109] Preferably, the operating device is designed to be mounted blindly, i.e., in such a way that the fastening device can be assembled and / or locked, in particular clamped, without direct visual contact, and in particular that the pin-shaped elements and the fixing means can be connected to each other without direct visual contact.

[0110] Another objective of the invention is to provide an improved cooktop system.

[0111] This problem is solved by a cooktop system with a control device as described above. The cooktop system can be further developed with at least one of the features described above in connection with the control device. The advantages of the cooktop system correspond to the advantages of the control device. Preferably, the cooktop system comprises at least one cooktop, in particular with at least one, and in particular at least two, cooking zones, and / or at least one extractor fan, in particular a downdraft extractor.

[0112] The operating device is preferably designed to control the cooktop system, in particular the at least one cooktop, and / or the at least one extractor hood. For this purpose, the at least one operating device can be in signal communication with the cooktop system, in particular the at least one cooktop and / or the at least one extractor hood. The at least one extractor hood is preferably designed as a downdraft extractor or as a device for extracting cooking fumes downwards, in particular through a downward-facing cooking fume inlet opening in the extractor hood.

[0113] Another objective of the invention is to provide an improved furniture system.

[0114] This problem is solved by a furniture system comprising a kitchen unit and an operating device attached to the kitchen unit, particularly to a furniture wall, especially to the furniture front, as described above. Preferably, the operating element is attached to the kitchen unit, particularly to the furniture wall, especially to the furniture front, by means of the fastening device. The advantages of the furniture system correspond to the advantages of the operating device or the cooktop system described above. Preferably, the furniture system is further developed with at least one of the features described above in connection with the operating device and / or the cooktop system.

[0115] The kitchen furniture, especially the furniture wall, especially the furniture front, is particularly preferred in the area of ​​the central recess of the operating device, especially in a front view, without being covered.

[0116] Another object of the invention is to improve a method for assembling an operating device for a built-in kitchen appliance.

[0117] This task is solved by a procedure with the following steps: Providing an operating device, in particular according to the preceding description, with a fastening device having a plurality of pin-shaped extensions, drilling holes in a kitchen furniture, wherein the number and arrangement of the holes corresponds to the number and arrangement of the pin-shaped extensions of the fastening device.

[0118] Further advantages and details of the invention will become apparent from the description of exemplary embodiments with reference to the figures. Individual aspects of the exemplary embodiments can, both individually and in combination, represent aspects of the invention or a separate invention. In particular, details of different exemplary embodiments can be combined with one another as desired. The figures show: Fig. 1 a schematic representation of a cooktop system with two cooking zones and a downdraft extractor with several control devices for operating the cooktop system, Fig. 2 an exploded view of one of the operating devices in the Fig. 1 , Fig. 3A a perspective view of the operating device in the Fig. 3 , Fig. 3B a sectional view of the operating device along section line IIIB-IIIB in the Fig. 3A , Fig. 4 an exploded view of another variant of an operating device, Fig. 5A a perspective view of part of the operating device in the Fig. 4 , Fig. 5B a sectional view of the operating device along the VB-VB section line in the Fig. 4 , Fig. 6 an exploded view of an operating device according to a further embodiment, Fig. 7A a side view of the operating device in the Fig. 6 , on a kitchen base cabinet, especially on a kitchen front, Fig. 7B a sectional view of the operating device along section line VIIB-VIIB in the Fig. 7A , Fig. 8 an exploded view of an operating device according to a further embodiment, Fig. 9A a perspective view of part of the operating device in the Fig. 8 , Fig. 9B a sectional view of the operating device along the section line IXB-IXB in the Fig. 8 , Fig. 10 an exploded view of an operating device according to a further embodiment, Fig. 11A a perspective view of the operating device in the Fig. 10 , Fig. 11B a sectional view of the operating device along the section line XIB-XIB in the Fig. 11A , Fig. 12 an exploded view of an operating device according to a further embodiment, Fig. 13A a side view of the operating device according to the Fig. 12 , Fig. 13B a sectional view of the operating device along section line XIIIB-XIIIB in the Fig. 13A , Fig. 14 an exploded view of an operating device according to a further embodiment, Fig. 15A a perspective view of the operating device in the Fig. 14 , Fig. 15B a sectional view of the operating device along the XVB-XVB section line in the Fig. 15A , Fig. 16 a perspective view of an operating device according to a further embodiment, Fig. 17A a perspective view of the operating device in the Fig. 16 , Fig. 17B a sectional view of the operating device along the section line XVIIB-XVIIB in the Fig. 17A , Fig. 18 a perspective view of an operating device according to a further embodiment, Fig. 19A a side view of the operating device in the Fig. 18 , Fig. 9B a sectional view of the operating device along the section line XIXB-XIXB in the Fig. 19A , Fig. 20 a perspective view of an operating device according to a further embodiment, Fig. 21 a sectional view of the operating device along section line XXI-XXI in the Fig. 20 , Fig. 22 a perspective view of a fastening device for an operating device according to a further embodiment, Fig. 23 a sectional view of the fastening device along section line XXIII-XXIII in the Fig. 22 , Fig. 24 a perspective view of a fastening device for an operating device according to a further embodiment, or Fig. 25 a sectional view of the fastening device along section line XXV-XXV in the Fig. 24 .

[0119] The following section describes the general components of a kitchen appliance, specifically a cooktop system, and in particular a cooktop extractor system 1. The cooktop extractor system 1 comprises at least one cooktop 2. In the case of the Fig. 1 The cooktop extractor system 1 shown as an example includes two cooktops 2, each preferably with two cooking zones.

[0120] The cooktops (2) can be essentially any type of cooktop. In particular, they can be induction cooktops, gas cooktops, teppanyaki cooktops, wok cooktops, electric cooktops or warming plates, grills, or other types of cooktops.

[0121] During the Fig. 1 In the exemplary alternative shown, operating devices are provided for each of the cooktops 2, in particular control knobs 3. Operation via touch-sensitive sensors, which can be integrated into the cooktops 2, is also possible. Operation via a separate control module is also conceivable. In this case, the cooktops 2 can be designed as non-self-contained units, i.e., without their own control electronics. This simplifies the design of the cooktops 2. In particular, it is possible to reduce the height of the cooktops 2. It can be a maximum of 10 cm, 6 cm, 5 cm, 4 cm, 3 cm, or 2 cm.

[0122] Furthermore, the cooktop extractor system 1 includes a downdraft extractor 4. The downdraft extractor 4 forms a device for extracting cooking fumes.

[0123] The downdraft extractor 4 is positioned between the two cooking zones 2. It can also be positioned to the side of the cooking zones 2 or in the area behind the cooking zones 2.

[0124] The downdraft extractor 4 has a cooking fume inlet opening 5. In the illustrated alternative, the cooking fume inlet opening 5 is elongated, in particular rectangular. The cooking fume inlet opening 5 has an aspect ratio of at least 2:1, in particular at least 3:1, in particular at least 5:1, in particular at least 10:1. Typically, the aspect ratio of the cooking fume inlet opening 5 is at most 100:1, in particular at most 50:1.

[0125] The cooking fume inlet 5 can also be round, especially circular.

[0126] Multiple cooking fume inlet openings 5 ​​may also be provided. In particular, it is possible to provide two or more cooking fume inlet openings 5, especially slot-shaped cooking fume inlet openings 5. These may, in particular, be aligned parallel to each other.

[0127] The cooking fume inlet 5 can be reversibly closed, in particular by means of a closing element 6. In the case of several cooking fume inlet openings 5, these can each be closed separately, i.e., independently of one another, by means of closing elements 6.

[0128] A further control knob 3 is provided for operating the downdraft fan 4. Operation via a touch-sensitive sensor is also possible.

[0129] The downdraft extractor 4 is located in the area of ​​a cooktop level 8. It serves to extract cooking fumes from the area above the cooktop level 8 into an area below the cooktop level 8. It is therefore also referred to as a downdraft system (extraction, in particular through the cooking fume inlet opening 5, downwards).

[0130] The cooking fume inlet opening 5 is preferably arranged in a fixed position relative to the hob plane 8.

[0131] According to an alternative not shown in the figures, the area of ​​the downdraft ventilator 4 with the cooking fume inlet 5 can be moved in a direction perpendicular to the hob plane 8.

[0132] In principle, the cooktop extraction system 1 can also include a range hood.

[0133] The cooktop system 1 can be designed as a mounting unit. In this case, one or more cooktops 2 are integrated with one or more downdraft extractors 4 into a single system. They are specifically arranged in a common housing. For installation, this housing simply needs to be inserted into a recess in a worktop 9.

[0134] In the area below the hob system 1, compartments, in particular drawers 10 of a kitchen base cabinet 11, can be used essentially without restriction.

[0135] The cooktop system 1 is modular. In this case, essentially freely selectable cooktops 2 can be flexibly combined with one or more of the downdraft extractors 4. In particular, all of the cooktops 2 can be operated, i.e., controlled, using the control knobs 3 described in more detail below. The downdraft extractor(s) 4 can also be operated, i.e., controlled, using the control knobs 3.

[0136] The control knobs 3 are also modular in design. Each is connected via an interface 12 to one of the cooktops 2 and / or the downdraft extractor 4. In particular, they are in signal communication with one of the several cooktops 2 and / or the downdraft extractor 4.

[0137] The control knobs 3 are designed to be standardized. This means that the same control knob 3 is suitable for operating different cooktops 2 and / or downdraft extractors 4. The control knobs 3 are self-configuring. This means that when one of the cooktops 2 and / or the downdraft extractor 4 is connected, they automatically recognize which kitchen appliance is being used and adjust their functionality accordingly.

[0138] Such a uniform, standardized design of the control knobs 3 facilitates their manufacture. Furthermore, it allows for easy replacement of the control knobs 3. Finally, this simplifies the installation of the cooktop extractor system 1.

[0139] The following will refer to the Fig. 2 bis 21 Various versions of a control knob 3 are described. The control knob is referenced by the reference number 3 in all versions. Identical components in the different versions have the same reference numbers and are not described multiple times for efficiency reasons.

[0140] According to the first, based on the Fig. 2 bis Fig. 3B In the disclosed variant, the control knob 3 comprises a control element 13 and a fastening device 14.

[0141] The control element 13 includes a toggle cover 15. The control element 13 includes a ball bearing 16. The control element 13 includes a magnet receptacle 17. The control element 13 includes at least one magnet 18. The control element 13 includes a housing 19. The control element 13 includes a circuit board 20.

[0142] A cable 21 for transmitting electrical and / or control signals from the control knob 3 to the cooktop system 1 is connected to the circuit board 20. In particular, the information transmission can take place bidirectionally.

[0143] The circuit board 20 also has electrical components 22 arranged on it. These electrical components 22 include, in particular, components for operating the cooktop system 1 and / or lighting elements, especially LED lighting elements. The circuit board 20 is, in particular, annular in shape.

[0144] The circuit board 20 has, in particular, an outer radius R and an inner radius r. For the outer radius, in particular 1 cm ≤ R ≤ 5 cm, in particular 2 cm ≤ R ≤ 4 cm, in particular 2.5 cm ≤ R ≤ 3.5 cm and in particular R = 3 cm.

[0145] For the inner radius r, in particular 0.5 cm ≤ r ≤ 4.5 cm, in particular 1.5 cm ≤ r ≤ 3.5 cm, in particular 2 cm ≤ r ≤ 3 cm and in particular r = 2.5 cm.

[0146] The toggle cover 15 is annular in shape. In particular, the toggle cover 15 has an opening extending through the axial direction. The opening has a radius whose length is, in particular, at least 70%, in particular at least 75%, and in particular at least 80% of the length of a radius of the toggle cover 15. The toggle cover 15 is designed to enclose and cover the remaining components of the control element 13. The toggle cover represents, in particular, the outermost part of the control element 13 with which a user interacts directly.

[0147] The knob cover 15 can be made at least partially of a transparent and / or semi-transparent, in particular milky, material, especially a plastic, which is transparent, in particular, to LED light. In particular, the material of the knob cover 15 can be transparent to red light and / or blue light and / or white light and / or light of the entire visible light spectrum. It is particularly possible that a control knob 3 equipped with red illumination is used to operate a cooktop, while a control knob 3 equipped with blue illumination is used to operate the downdraft extractor 4.

[0148] It is also possible that the toggle cover 15 is made of metal.

[0149] The ball bearing 16 serves in particular to accommodate at least one ball 31 (see Fig. 3 ), over which the toggle cover 15 is rotatably mounted. The ball bearing 16 can in particular be designed as a deep groove ball bearing.

[0150] The magnet receptacle 17 serves to hold the at least one magnet 18. In particular, it is possible that the magnet receptacle 17 serves to hold more than one magnet 18, in particular at least two, in particular at least three, in particular at least five, in particular at least seven, in particular at least ten, in particular at least twelve and in particular at least fifteen magnets 18.

[0151] The magnets 18 can detect the angle of rotation by which a user has turned the control knob 15. This detection of the angle of rotation enables activation and / or deactivation and / or a change in system parameters of the cooktop 2 and / or the downdraft extractor 4. The changing magnetic signal can be detected by electrical components 22 of the circuit board 20 and transmitted to the cooktop system 1 via the cable 21.

[0152] The remaining components of the control element 13 are arranged or mounted on the housing 19. The housing 19 is at least partially enclosed by the knob cover 15. The circuit board 20 is located on the underside, i.e., the side of the housing 19 facing the furniture front 12.

[0153] The fastening device 14 comprises a fastening element 23 with a total of three pin-shaped elements 24. It is particularly possible that the fastening element 23 has a different number of pin-shaped elements 24. For example, it is possible that the fastening element 23 has at least two, in particular at least four, and in particular at least five pin-shaped elements.

[0154] The fastening element 23 is also annular in shape. The pin-shaped elements 24 extend from the annular fastening element 23 towards the furniture front 12. The pin-shaped elements 24 are distributed particularly evenly over the fastening element 23. In particular, in the Fig. 2 bis 5 In the described variant, the pin-shaped elements 24 have a relative phase of 120° to each other. With a uniform distribution, n pin-shaped elements 24 can generally have a relative phase of 360 ° n to each other. It is also possible that the pin-shaped elements 24 are unevenly distributed over the annular fastening element 23.

[0155] The pin-shaped elements 24 each have at least one partial thread section 25. It is also possible for the pin-shaped elements 24 to have at least two and, in particular, at least three partial thread sections 25. In the present embodiment, the pin-shaped elements 24 have three partial thread sections 25, each extending along the entire length of the pin-shaped element 24 on one side and being identical to the others.

[0156] The pin-shaped elements 24 are intended to penetrate the furniture front 12 and interact on the other side of the furniture front 12 with at least one fixing element 26 in such a way that the operating knob 3 is held and, in particular, secured to the kitchen front 12. For this purpose, it is particularly possible to provide a through-hole in the kitchen front 12, for example, by pre-drilling, through which the pin-shaped elements 24 can be guided.

[0157] In particular, it is possible that at least one of the pin-shaped elements 24 is hollow, especially to guide the cable 21 of the circuit board 20 to the cooktop system 1.

[0158] The fixing device 26 comprises a support element 27 and a nut 28. The nut 28 can in particular be designed as a cap nut.

[0159] The support element 27 has several receptacles in which the pin-shaped elements 24 can be mounted so as to be movable in the axial direction. The support element 27 serves, in particular, to mount the pin-shaped elements 24 immovably in the radial direction. In this way, it is prevented that the pin-shaped elements 24 are bent inwards, i.e., towards the center of the circular ring of the fastening element 23.

[0160] The nut 28 has, in particular, at least one fixing threaded section 29. It is particularly possible that the nut 28 has more than one fixing threaded section 29. The nut 28 has, in particular, as many fixing threaded sections 29 as the pin-shaped elements 24 have partial threaded sections 25. The fixing threaded sections 29 are designed, in particular, to interact with the partial threaded sections 25 to force-fit the operating knob 3 to the furniture front 12.

[0161] The fastening device 14 further comprises three screws 30 with which the operating element 13 can be positively connected to the fastening element 23.

[0162] The operating device 3, in particular the operating element 13 and the fastening device 14, has a central recess 31a. The central recess 31a is designed on the front of the operating device 3 such that the kitchen furniture 11, in particular the furniture front 12, is not obscured by the operating device 3 in a front view.

[0163] The central recess 31a is preferably circumferentially limited, and in particular enclosed, by the operating device 3, in particular the operating element 13 and / or the fastening device 14. For this purpose, the operating device 3 can be, at least partially, and in particular the operating element 13 and / or the fastening device 14 can be, annular in shape, in particular circular in shape.

[0164] Based on the Fig. 4 bis 5B Another variant of the control knob 3 is shown. According to this variant, the control knob 3 comprises the control element 13, which is identical to the control element 13 of the control knob 3 of the first variant, and a fastening device 32.

[0165] The fastening device 32 comprises a guide ring 33, at least two pin-shaped elements 34 and a fixing means 35.

[0166] The guide ring 33 is designed in a circular shape and has at least two receptacles into which the pin-shaped elements 34 engage in order to secure the guide ring 33 to the furniture front 12 in a form-fitting manner in conjunction with the fixing means 35.

[0167] In this variant, it is also possible to use more than two pin-shaped elements 34. The pin-shaped elements 34 can, in particular, have at least two, not in the Fig. 6 bis 8 The partial thread sections shown are present. In particular, a first partial thread section may be associated with a section not shown in the Fig. 6 bis 8 The illustrated fixing thread section 29 of the guide ring 33 mounts work together to connect the guide ring 33 to the pin-shaped elements 34 in a force-fit manner.

[0168] The furniture front 12 has through openings, for example as through holes, through which the pin-shaped elements 34 and at least partially the receptacles of the guide ring 33 are guided.

[0169] The second partial thread section of the pin-shaped elements 34 serves in particular to cooperate with the fixing means 35 in order to force-fit the guide ring 33, and thus also the operating element 13 and the operating knob 3, to the furniture front 12.

[0170] The fixing device 35 comprises in particular a nut 36 and a washer 37. The nut 36 comprises a fixing threaded section 29.

[0171] To attach the guide ring 33 to the furniture front 12, the washer 37 and then the nut 36 can first be attached, in particular screwed onto, the end of the pin-shaped element 34 facing away from the operating element 13. The washers 37 serve in particular to ensure a particularly even force transmission from the nuts 36 to the furniture front 12.

[0172] The guide ring 33 also has a through-opening to guide the cable 22 from the circuit board 20 to the hob system 1.

[0173] Both in the first variant ( Fig. 2 bis 3B ) as well as in the second variant ( Fig. 4 bis 5B The circuit board 20 rests directly on the guide ring 33, or the fastening element 23. In particular, the circuit board 20 and the guide ring 33, or the fastening element 23, are arranged without any axial distance to each other. Fig. 9 An alternative embodiment of the guide ring 33 and the circuit board 20 is shown. It should be noted in particular that the following explanations refer to the Fig. 9 not only the arrangement of a circuit board 20 and a guide ring 33 relative to each other, but can also be transferred to the relative positioning of a circuit board 20 and a fastening element 23 relative to each other.

[0174] The management ring 33 comprises at least one elevation 39. In particular, the management ring 33 comprises three elevations 39. It is also possible that the management ring 33 has more than three elevations 39.

[0175] The circuit board 20 is arranged on the projections 39, resulting in a distance d between the guide ring 33 and the circuit board 20. The distance d can be given in particular by: 1 mm ≤ d ≤ 10 mm, especially 2 mm ≤ d ≤ 9 mm, especially 3 mm ≤ d ≤ 7 mm and in particular d = 5 mm.

[0176] The distance d allows light from lighting devices 38, which may be arranged on or attached to the annular circuit board 20, to be reflected, particularly diffusely reflected. In this way, the emission characteristics of the lighting devices 38, and especially the illumination of the control knob 3, can be improved. For example, the control device 3, in particular the circuit board 20 and / or the mounting element 23, can have a reflector for light, especially the light emitted by the lighting devices 38.

[0177] The operating element 13 has means 40 for receiving the pin-shaped elements 34, which are preferably part of a housing 42 of the operating element 13. Furthermore, according to this variant, means for detecting the rotation angle of the knob cover 15 and means for rotatably mounting the knob cover 15 are already integrated into the housing 42. Such a housing 42 can also be combined with a fastening element 23 according to the preceding variants.

[0178] In the Fig. 6 bis 9B Two further variants of a control knob 3 are shown. The control knob 3 comprises a control element 13 and a mounting device 41.

[0179] The fastening device 41 comprises, according to the [specifications] in the Fig. 6 bis 9B The variants shown include the pin-shaped elements 34 and fixing agents 35, the exact effect of which has already been described with reference to the Fig. 4 bis 5B As explained above, the fastening device 41 does not include a guide ring according to this variant, since the means for receiving the pin-shaped elements 34 are already integrated into the housing 42.

[0180] According to another, in the Fig. 10 bis 11B In the illustrated variant of the control knob 3, the control knob 3 comprises a fastening device 43. The fastening device 43 comprises at least two pin-shaped elements 44, at least two cavity wall boxes 45 and at least two retaining clips 45'.

[0181] The pin-shaped elements 44 are in particular directly connected to the housing 19 of the control element 13.

[0182] The mounting device 43 comprises at least two cavity wall boxes 45, which are inserted into pre-made through-openings in the furniture front 12. The pin-shaped elements 44 are arranged in the cavity wall boxes 45 and are each clamped in the cavity wall boxes 45 by means of the retaining clip 45', thus providing a positive locking connection. The mounting device 43 also includes a cable channel 46, which can be made of, for example, Plexiglas. The cable channel 46 serves to guide the cables 21 from circuit board 20 to the cooktop system 1.

[0183] According to another, in the Fig. 12 bis 13B In the illustrated variant of the control knob 3, the control knob 3 comprises a fastening device 47, at least two pin-shaped elements 48 with a toothing 49 and a fixing means 50.

[0184] The pin-shaped elements 48 are designed as flat strips. The toothing 49 is arranged particularly on the inside of the pin-shaped elements 48, i.e., on the side that corresponds to the center of the annular operating knob 3. It is possible that the fastening device 47 has more than two pin-shaped elements 48.

[0185] The fixing element 50 is designed in this case as a strip-shaped, curved counter-holder and / or as a spring, in particular as a wave spring. Other configurations of the fixing element 50 are also possible. The fixing element 50 can, for example, be designed as a single piece or consist of several parts.

[0186] The fixing means 50 comprises at least one receptacle 51 in which a locking element 52 is arranged. The locking element 52 is preferably designed as a spring tongue, in particular in the form of the spring tongue of a cable tie. It is particularly possible that the fixing means 50 has as many receptacles 51 with associated locking elements 52 as there are pin-shaped elements 48.

[0187] The locking element serves to interact with the toothing 49 of the pin-shaped element 48 and to hold the pin-shaped element 48 securely in the receptacle. The basic operating principle of the pin-shaped elements 48 and the fixing element 50 corresponds to that of a standard cable tie. In particular, it is possible to push the pin-shaped elements as far as desired into the receptacle 51 along the direction running from the operating knob 3 to the furniture front 12. The locking element 52 prevents the pin-shaped elements 48 from being pulled out of the receptacle 51 in the opposite direction. In this way, the operating knob 3 can be attached to the furniture front 12 securely and, in particular, quickly. It is also possible for the fixing element 50 to be positioned above, but not inside, the Fig. 13 and 14The means shown are available to adjust the locking element 52 in such a way that the pin-shaped elements 48 can be pulled out of the receptacles 51.

[0188] In this way, the attachment of the control knob 3 to the furniture front 12 can be easily and reversibly designed. Such a reversible design of the attachment of the control knob 3 to the furniture front 12 enables particularly time-efficient maintenance and / or installation of the cooktop system 1 and especially of the control knob 3.

[0189] According to another, in the Fig. 14 bis 15B In the illustrated variant of the control knob 3, the control knob 3 includes a fastening device 53.

[0190] The fastening device 53 comprises a pin-shaped element 55 and a locknut 56. In the present embodiment, the pin-shaped element 55 has a diameter that is essentially in the range of the diameter of the operating knob 3. The pin-shaped element is, in particular, directly connected to the housing 19 of the operating knob 3.

[0191] To attach the control knob 3, a hole must be made in the furniture front 12, which serves to receive the pin-shaped element 55. The hole has a diameter that is essentially the same as the diameter of the control knob 3. The pin-shaped element then has a partially threaded section 57, which interacts with a fixing threaded section 57a ​​of the locknut 56 to attach the control knob 3 to the furniture front 12.

[0192] In this variant, cable 21 of circuit board 20 is routed directly from circuit board 20 to the cooktop system 1 within the single pin-shaped element 55. Circuit board 20 is circular in shape.

[0193] According to another, based on the Fig. 16 bis 17B In the illustrated embodiment, the circuit board 20 is annular in shape. Otherwise, the construction of the control knob 3 essentially corresponds to that of the one shown in the Fig. 14 bis 15B revealed control knob 3.

[0194] According to another, in the Fig. 18 bis 19B In the variant of the control knob 3 shown, the control knob 3 has a fastening device 58.

[0195] The fastening device 58 comprises a fastening element 59, a pin-shaped element 60, a fastening washer 61 and a fastening knob 62.

[0196] The fastening element 59 has a receptacle for storing the pin-shaped element 60. The components of the operating element 13, in particular the housing 19, are directly connected to the fastening element 59. Such a connection can be made, for example, by means of, not in the Fig. 17 and 18 The screws shown are used.

[0197] The pin-shaped element 60 is centrally connected to the fastening element 59. This means that the pin-shaped element is located in the area of ​​the center point of the annular operating knob 3. The pin-shaped element extends axially through the furniture front 12.

[0198] For this purpose, a passage opening must be made in the furniture front 12, which, as already mentioned for the one referred to in the Fig. 15 and 16The variant described has a diameter that is essentially in the range of the diameter of the operating knob 3, since the fastening element 59 is also, at least partially, arranged within this through-opening.

[0199] The pin-shaped element 60 penetrates a receptacle of the mounting washer 61 on the side of the furniture front 12 facing away from the control element 13 and is secured by tightening the mounting knob 62. Tightening the mounting knob 62, together with the mounting washer 61 and the mounting element 59, secures the control knob 3 to the furniture front 12. The cable 21 of the circuit board 20 is guided directly through the aforementioned opening.

[0200] In principle, different variants of bearing and locking concepts for the toggle cover 15 are possible and provided for.

[0201] The one in Fig. 19A The variant shown essentially corresponds to the variants of the operating device 13 already discussed, with reference to the preceding figures.

[0202] For example, the control knob 3 can include a control element 13 in which the knob cover 15 is locked and / or supported by means of axial ball detents. The ball detents allow the rotation angle of the knob cover 15, and thus the operation of the control knob 3, to be determined, detected by corresponding electronic components 22 on the circuit board 20, and transmitted to the cooktop system 1.

[0203] The detent of a rotation angle when the toggle cover 15 is turned can alternatively or additionally be achieved by means of the magnets 18. The magnets 18 can form a magnetic bearing.

[0204] Radial ball pressure pieces can be used, firstly to support the toggle cover 15 and secondly to lock the toggle cover 15 against rotation.

[0205] According to another, based on the Fig. 20 and 21 In the described variant of the operating device 3, this device has a fastening device 63. Its construction largely corresponds to that of the fastening device 32, although other configurations are also possible, particularly according to the embodiments described above.

[0206] A particular feature is that the operating device 3 has a light guide 64 for guiding the light between the at least one illumination element 38 and at least one light emission surface 65a, 65b of the operating device 3. The light guide 64 preferably comprises a first light guide element 66 and / or a masking element 67 and / or a second light guide element 68. The aforementioned components 66, 67, 68 are preferably annular in shape.

[0207] The at least one light guide element 66, 68 can be designed as a light splitter, in particular in a flexible and / or Y-shaped form and / or as a prism. Preferably, the at least one light guide element 66, 68 comprises a light-transmitting material, in particular a plastic.

[0208] The masking material 67 can be made of an opaque plastic. The masking material 67 surrounds the at least one light guide body 66, 68, preferably at least partially, and in particular over the majority of its surface.

[0209] Preferably, the light guide device 64 is designed such that the light emitted by the at least one lighting means 38 is emitted inwards and outwards, in particular with respect to an annular component of the operating device 3, in particular at the light emission surfaces 65a, 65b, in particular at the inner and / or outer surfaces of the light guide 68.

[0210] According to two further, based on the Fig. 22 bis 25In the described variants, the fastening device 69, 70 can have at least one pin-shaped element 71, 72 with a feedthrough for at least one signal-transmitting element, in particular an elongated circuit board 73, 74. Connectors 75, 76 can be arranged at both ends of the respective signal-transmitting element 21.

[0211] The two embodiments differ in that the circuit board 73 is inserted frontally or longitudinally into the tubular passage, whereas the circuit board 74 is inserted laterally or transversely into the slotted passage.

[0212] Other fastening concepts for an operating device 3 are also conceivable. According to one variant, the guide ring 33 can be attached directly to the kitchen front 12 by means of screws. The remaining operating element 13, in particular the housing 19, can then be attached to the guide ring 33 by means of a bayonet fitting.

[0213] Alternatively, the guide ring 33 can be glued directly to the furniture front 12 using an adhesive layer 68.

[0214] The guide ring 33 and the housing 19 can be designed as a single component, whereby the housing 19 can be attached directly to the furniture front 12 by means of the screws.

[0215] The housing 19 and the guide ring 33 can be designed as a single component, which is bonded directly to the kitchen front 12 by means of an adhesive layer.

[0216] The control knobs 3 disclosed with reference to the exemplary embodiments are only one possible alternative of control devices 3. The control device 3 according to the disclosure can alternatively or additionally have a touch-sensitive surface and / or a display element, in particular a screen, in particular a touch-sensitive screen, and / or at least one, in particular several buttons.

Claims

1. Operating device (3) for operating a hob system (1) comprising 1.1 a control element (13) and 1.2 a fastening device (14, 32, 41, 43, 47, 53, 58, 63) for fastening the control element (13) to a kitchen furniture (11) comprising 1.2.1 a plurality of pin-shaped elements (24, 34, 44, 48, 55, 60) and 1.2.2 a fixing means (26, 35, 50), 1.3 wherein a plurality of the pin-shaped elements (24, 34, 44, 48, 55, 60) each has a partial threaded section (25, 57), 1.4 wherein the fixing means (26, 35, 50) has a nut (28, 36, 56) with one or more fixing threaded sections (29) which interact in a manner appropriate to the partial threaded sections (25, 57).

2. Operating device (3) according to claim 1, characterized by the fact that the partial thread sections (25, 57) together form sections of a single thread.

3. Operating device (3) according to claim 1, characterized by the fact that the partial thread sections (25, 57) are identically formed.

4. Operating device (3) according to one of claims 1 or 3, characterized by the fact that the nut (28, 36, 56) has a number and arrangement of fixing thread sections (29) that is appropriate to the number and arrangement of the partial thread sections (25, 57).

5. Operating device (3) according to one of the preceding claims, characterized by the fact that the fastening device (14, 32, 41, 43, 47, 53, 58, 63) has at least one opening for a signal-transmitting element (21), in particular a circuit board.

6. Operating device (3) according to claim 5, characterized by the fact that the implementation is formed in at least one of the pin-shaped elements (24, 34, 44, 48, 55, 60) and / or has the circuit board arranged therein.

7. Operating device (3) according to one of the preceding claims, characterized by the fact that the fixing agent (26, 35, 50) has a support element (27) for supporting the pin-shaped elements (24, 34, 44, 48, 55, 60).

8. Operating device (3) according to claim 7, characterized by the fact that the support element (27) is designed to be resilient.

9. Operating device (3) according to one of the preceding claims, characterized by a central recess (31a) on the front of the operating device (3) which is designed such that the kitchen furniture (11) is not obscured by the operating device (3) in a front view.

10. Operating device (3) according to one of the preceding claims, characterized by the fact that a rotatably mounted component of the control element (13), in particular the toggle cover (15), and / or a light guide element and / or the fastening device (14, 32, 41, 43, 47, 53, 58, 63) are formed in a ring shape.

11. Operating device (3) according to one of the preceding claims, characterized by at least one lighting means (38) whose main direction of light emission points towards a rear side of the operating device (3).

12. Operating device (3) according to claim 11, characterized by at least one reflector for reflecting the light emitted by the at least one lighting device (38) towards a front of the operating device (3).

13. Cooktop system (1) with an operating device (3) according to one of the preceding claims.

14. Furniture system comprising 14.1 a kitchen furniture (11), and 14.2 an operating device (3) attached to the kitchen furniture (11) according to one of claims 1 to 12, wherein the operating element (13) is attached to the kitchen furniture (11), in particular a furniture wall, in particular a furniture front (12), by means of the fastening device (14, 32, 41, 43, 47, 53, 58, 63).

15. Method for mounting an operating device (3) for a cooktop system (1) comprising the following steps: 15.1 Providing an operating device (3), in particular according to any one of claims 1 to 12, with a fastening device (14, 32, 41, 43, 47, 53, 58, 63) with a plurality of pin-shaped elements (24, 34, 44, 48, 55, 60), 15.2 Drilling holes in a kitchen furniture (11), in particular in a furniture wall, in particular a furniture front (12), 15.2.1 wherein the number and arrangement of the holes corresponds to the number and arrangement of the pin-shaped elements (24, 34, 44, 48, 55, 60) of the fastening device (14, 32, 41, 43, 47, 53, 58, 63).

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