EP4226838A1 - Attachment part for fastening to a panel element - Google Patents

Abstract

The invention relates to an add-on part (23) for attachment to a screen element (4), with a base body (24), a guiding and counter-guiding element (31, 34, 36, 39) and a fastening element (27, 28), which can be attached using the Guide and counter-guide element (31, 34, 36, 39) is guided in relation to the base body (24) in such a way that it moves away from the base body (24) and engages when the add-on part (23) is mounted on the screen element (4). with the screen element (4) for fastening the add-on part (23) to the screen element (4).

Description

The present invention relates to an attachment for attachment to a panel element, a panel system with such an attachment and a cooking appliance with such a panel system.

In the prior art, such. Am DE 10 2016 218 807 A1 , a distinction is made between two systems of panels for cooking appliances. These two systems include, on the one hand, a so-called self-supporting switch front and, on the other hand, a so-called sandwich structure.

The self-supporting switch face has a base part which can be made of various materials such as plastic, aluminum, steel or stainless steel and can be brushed, painted or ground, for example. Positioning elements and fastening elements are integrated in the base part, which are used on the one hand for fastening and positioning the base part on a cooking appliance and on the other hand for fastening and positioning add-on parts on the base part. The freedom of design is limited with a self-supporting switch front, since, for example, it is not possible to add retractable switch handles due to design requirements. An assembly of conventional add-on parts on the base part is expensive, especially since their attachment should not be visible and other design elements must be attached to cover the attachment. This makes additional process steps, such as welding or gluing, necessary.

The sandwich construction is used in particular for high-quality devices with increased design requirements and for the use of retractable switch handles. This has a panel support on which all attachments are mounted and a design element that is attached to the panel support. In the state of the art, for example in EP 2 390 403 A1 , wet glue is used to attach it to the panel support. Conventional add-on parts are fastened to the panel support with the aid of complex fastening elements, such as screw connections, folding and bending straps, snap hooks or eyelets. In the pamphlet EP 2650 613 A1 an attachment is attached to the panel support with an adhesive. This results in long drying times and high installation costs.

The object of the present invention is to provide an improved add-on part for attachment to a screen element.

Accordingly, an attachment is provided for attachment to a panel element. The attachment comprises a base body, a guiding and counter-guiding element and a fastening element, which is guided with the aid of the counter-guiding element and guide element in such a way with respect to the base body that when the attachment is mounted on the panel element, it moves away from the base body and engages with the Aperture element passes to the attachment of the attachment to the panel element.

The add-on part is preferably pressed against the screen element during assembly. As a result, the fastening element is moved away from the base body with the aid of the guide and counter-guide element and engages in the screen element. The assembly of the add-on part comprises only one assembly step, namely that of pressing against the screen element. In comparison to gluing, there is no need to apply the adhesive, precisely position the attachment on the screen element and hold the attachment in this position until the adhesive has hardened. In comparison to gluing, for example, this simplifies the assembly of the add-on part and shortens the assembly time.

The configuration of the attachment allows, for example, the attachment of retractable attachments to the screen element, in particular to a self-supporting switch front, with high design requirements. These can be, for example, that the attachment of the attachment to the screen element is not visible or the attachment is connected flush with the screen element.

A “panel element” is to be understood in particular as a self-supporting switch front which has a base part, in particular a single base part, in particular a formed sheet metal part. The base part can have a number of positioning elements and fastening elements, to which all attachments are fastened. Furthermore, the base part is rigid enough to carry one or more attachments. The screen element is preferably a switch front.

A "guide element" is to be understood in particular as a guide rail on which the fastening element for mounting the add-on part is mounted on the fastening element and is linearly displaceable.

A “counter-guide element” is to be understood in particular as a counter-element that engages in the guide rail or encompasses the guide rail or is linearly mounted on the guide rail and is linearly displaceable along the guide rail.

The guide element and the guide counter-element can, for example, have the same cross-sectional profile, with “cross-section” meaning a section perpendicular to the direction along which the relative mobility (in particular displaceability) is given (also “longitudinal direction” below).

According to one embodiment, in a preassembled state of the add-on part, the fastening element is fastened to the base body with the aid of the guiding and counter-guiding element in such a way that the fastening element is releasably blocked from moving away from the base body.

This has the advantageous effect that the fastening element is already fastened to the base body before the actual assembly and does not have to be held by a person or a robot during assembly. As a result, the assembly costs can be reduced.

A "pre-assembled state" is to be understood as meaning a state in which the fastening element is fastened to the base body with the aid of the guide and counter-guide element before the add-on part is mounted on the screen element.

“Releasably locked” is to be understood in particular as a positive and/or non-positive connection that can be released, for example, non-destructively. In particular, the detachable connection is provided by an elastic latching connection.

According to a further embodiment, the fastening element is in an assembled state of the add-on part in engagement with the screen element, wherein the attachment part between the pre-assembled state and the assembled state by means of moving away of the fastening element can be transferred from the base body, wherein in the mounted state a return movement of the fastening element towards the base body is blocked, in particular releasably.

This configuration of the attachment makes it possible to mount the attachment on the screen element in just a single assembly step, in which the attachment is pressed against the screen element. By blocking the movement back of the fastening element towards the base body, the base body is fixed to the add-on part. Due to the detachability of the lock, the add-on part can be removed from the panel element, e.g. for repair purposes.

In the "assembled" state, the fastener engages, for example, a rail, double fold, or breakout of the panel member. In the "assembled state" the add-on part is fixed in six degrees of freedom on the fastening element.

“Releasably locked” here also means, in particular, a positive and/or non-positive connection that can be released, for example, non-destructively. In particular, the detachable connection is provided by an elastic latching connection. However, the solvability is optional here.

According to a further embodiment, the moving away and/or moving back of the attachment is a displacement in a straight line.

According to the exemplary embodiment, the “moving away” and/or “moving back” takes place along a straight line, but can also take place along a curve. The "moving back" occurs in the opposite direction to the "moving away".

According to a further embodiment, the base body for the assembly of the add-on part can be moved in an assembly direction towards the panel element, as a result of which the fastening element and/or one of the guiding and counter-guiding elements come into contact with the panel element, which causes the fastening element to be moved away from the base body .

As a result, the attachment can be easily mounted on the screen element.

The “mounting direction” is a direction in which the attachment is mounted on the screen element. The assembly direction is in particular oriented perpendicularly to the main plane of extension of the screen element.

According to a further embodiment, the guide and guide counter-element has a rail and a profile surrounding the rail.

In particular, the rail has a T-shaped cross section. The profile may have a C-shaped cross section.

According to a further embodiment, the straight line and/or the rail is inclined with respect to the mounting direction.

The inclination can be, for example, between 10-80°, preferably between 30-70°.

According to a further embodiment, the guiding and counter-guiding element can be releasably latched to one another or one of the guiding and counter-guiding elements can be latched to another element for releasably blocking the movement away and/or blocking the backward movement.

This can advantageously be achieved in that the fastening element can be releasably locked with respect to the base body in the pre-assembled and/or assembled state, as described above.

The latchability can be provided, for example, by latching lugs or protruding sections that engage in receiving elements, such as counter-latches, cutouts, notches, or holes. The guiding and counter-guiding element can be released again by means of an elastic design of the latching lugs or protruding sections.

According to a further embodiment, at least one of the guiding and counter-guiding elements is fastened to the base body with the aid of a wedge.

The wedge is inclined to the mounting direction. The guide and guide counter-element are preferably fastened on a surface (inclined surface) of the wedge facing away from the base body.

According to a further embodiment, one of the guiding and counter-guiding elements and/or the wedge is formed in one piece with the base body and/or the respective other of the guiding and counter-guiding element is formed in one piece with the fastening element.

Due to the one-piece design, further assembly steps for fastening the guide and guide counter-element and/or the wedge to the base body are unnecessary.

According to a further embodiment, a first and a second fastening element are guided with the aid of a respective guiding and counter-guiding element with respect to the base body in such a way that when the attachment is mounted on the panel element, they move away from the base body and engage with the panel element for attachment of the attachment reach the screen member, the first and second fasteners being located on opposite sides of the body and the first and second fasteners being moved away from the body in opposite directions.

As a result, it can advantageously be achieved that the first and second fastening element can be brought into engagement with the screen element at the same time with only one assembly step. Furthermore, the use of two fastening elements enables secure fastening in six degrees of freedom.

The first fastening element engages, for example, with a rail or a double edging of the panel element. The second fastening element comes into engagement, for example, with one or more cutouts that are arranged on a simple folded edge of the screen element.

According to a further embodiment, the base body is formed from two half-shells which are connected to one another.

The design of the base body from two half-shells allows a simple production of the base body from two injection molded parts. The half-shells can be clipped together via latching lugs, which are arranged on one half-shell, and counter-latches, which are arranged on the other half-shell.

According to a further embodiment, the base body has a display device, in particular a display, an operating element, in particular a switch or a switch holder, for example a holder for a retractable rotary toggle, a positioning device for positioning the panel element in relation to a body of the cooking appliance, a communication device, in particular a WLAN module, a loudspeaker device and/or other attachments to the device, in particular a vapor hinge.

Furthermore, the at least one attachment can be a steam module or a steam hinge. These devices are preferably provided if the cooking appliance has a device for generating steam for the cooking process. The steam module includes in particular a controller for the device mentioned above. The steam hinge is a hinge for this device.

According to a further embodiment, a screen system with a screen element and an attachment is provided, wherein the attachment can be attached to the screen element or is attached by the attachment element of the attachment engaging in the screen element.

According to a further embodiment, a cooking appliance, in particular a cooker or oven, is provided with the panel system described above.

The screen system is mounted on a device body.

Further possible implementations of the invention also include combinations of features or embodiments described above or below with regard to the exemplary embodiments that are not explicitly mentioned. The person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the invention.

• Fig. 1 zeigt perspektivisch und nur ausschnittsweise einen Backofen gemäß einer Ausführungsform;
• Fig. 2 zeigt perspektivisch ein Blendenelement in einer rückseitigen Ansicht;
• Fig. 3 zeigt das Blendenelement aus Fig. 2, wobei an diesem zwei Anbauteile angeordnet sind, und zwar zwei Schalteraufnahmen;
• Fig. 4 zeigt ein erstes Gehäuseteil der Schalteraufnahme aus Fig. 3;
• Fig. 5 zeigt ein erstes Befestigungselement des ersten Gehäuseteils aus Fig. 3;
• Fig. 6 zeigt das Befestigungselement aus Fig. 5 in einer rückseitigen Ansicht;
• Fig. 7 zeigt ein zweites Gehäuseteil der Schalteraufnahme aus Fig. 3;
• Fig. 8 zeigt ein zweites Befestigungselement des zweiten Gehäuseteils aus Fig. 3;
• Fig. 9 zeigt das Befestigungselement aus Fig. 8 in einer rückseitigen Ansicht;
• Fig. 10 bis 12 zeigen in einer Querschnittsansicht des Blendenelements drei Schritte bei der Montage der Schalteraufnahme in dieser; und
• Fig. 13 zeigt in einer Querschnittsansicht das Blendenelement mit der montierten Schalteraufnahme und einem darin versenkten Drehknebel.

Further advantageous refinements and aspects of the invention are the subject matter of the dependent claims and of the exemplary embodiments of the invention described below. The invention is explained in more detail below on the basis of preferred embodiments with reference to the enclosed figures.

• 1 shows in perspective and only partially a baking oven according to one embodiment;
• 2 shows in perspective a screen element in a rear view;
• 3 shows the aperture element 2 , Which are arranged on this two attachments, namely two switch receptacles;
• 4 shows a first housing part of the switch receptacle 3 ;
• figure 5 shows a first fastening element of the first housing part 3 ;
• 6 shows the fastener figure 5 in a back view;
• 7 shows a second housing part of the switch holder 3 ;
• 8 shows a second fastening element of the second housing part 3 ;
• 9 shows the fastener 8 in a back view;
• Figures 10 to 12 show in a cross-sectional view of the screen element three steps in the assembly of the switch receptacle in this; and
• 13 shows a cross-sectional view of the panel element with the mounted switch mount and a rotary toggle countersunk therein.

Elements that are the same or have the same function have been provided with the same reference symbols in the figures, unless otherwise stated.

1 shows a cooking appliance 1 in a perspective view. The cooking appliance 1, which is an oven according to the exemplary embodiment, comprises a panel system 2 and a body 3. The panel system 2 is attached to the body 3. The screen system 2 comprises a screen element 4 and one or more add-on parts, which will be explained in more detail later, and which can be attached to the screen element 4 .

The cooking appliance 1 has a door 5 at the front. The door 5 can be opened in order to provide access to a cooking chamber inside the cooking appliance 1 . The screen element 4 of the screen system 2 is arranged above the door 5 . The panel system 2 also has, for example, two rotary toggles 6 that can be lowered. The rotary toggles 6 can each be adjusted between a first and a second position. In the first position, as in 1 shown, the rotary toggle 6 over the screen element 4 to the front, ie in the depth direction T over. In this first position, they can be operated by a user standing in front of the cooking appliance 1 . For example, the temperature in the cooking chamber can be adjusted in this way. In the second position, they are sunk into the screen element 4, that is to say they are arranged essentially flush with the screen element 4 with their front side. Symbols 7 can be provided around a respective rotary knob 6 which, together with a marking 8 on the respective rotary knob, indicate information about an operating state of the cooking appliance 1 . The symbols 7 can, for example, be printed, glued or embossed onto the screen element 4 . Furthermore, the symbols 7 can be provided by electronic devices such as LEDs. The symbols 7 are provided directly on the side 9 visible to the user (here also referred to as the front side) of the screen element 4 . The panel system 2 can also include a display 10 . The display 10, which can in particular also be a touch display, is set up to display information about the cooking appliance 1 and/or the food to be cooked therein.

The 2 shows the panel element 4 1 in a perspective rear view. The back of the screen element 4 is denoted by 11 there. As in synopsis with 1 can be seen, the panel element 4 has a main extension plane E, which is in the assembled state of the panel system 2 in FIG Vertical direction H (see also 1 ) and in the width direction B (see also 1 ) of the cooking appliance 1 extends.

A first connecting element 12 and a second connecting element 13 are provided on the screen element 4 . In this case, the first connecting element 12 according to the exemplary embodiment is designed as a rail. The rail 12 is produced by folding the sheet metal from which the screen element 4 is made twice. The sheet metal can be, for example, a steel or stainless steel sheet. Alternatively, the panel element 4 can also be made of plastic. In this case, the screen element 4 together with the double edge is produced as an injection molded part. The rail 12 extends along an upper longitudinal side 14 of the screen element 4 provided in the vertical direction H.

Furthermore, the screen element 4 comprises a simple folded edge 15 which extends along the lower longitudinal side 16 of the screen element 4 in relation to the vertical direction H. Like the double edging, the simple edging 15 is manufactured in one piece with the screen element 4 . The simple folded edge 15, like the double folded edge, is made from the sheet metal blank (or by injection molding) used to manufacture the panel element 4, namely by bending out of the main plane of extension E. While the simple folded edge 15 extends perpendicularly to the main plane of extension E, includes the double edging or rail 12 has two sections 17, 18. The first section 17 also extends perpendicularly to the main plane of extension E. The section 18, which is in turn folded over compared to section 17, extends in a plane parallel to the main plane of extension E.

The second connecting element 13 is designed in the form of several breakouts from the simple folded edge 15 . The shape of the bursts can be, for example, circular, square, rectangular, round, oval or some other shape.

Furthermore shows 2 Through holes 19 for the rotary knob 6 and a right-angled cutout 20 for the display 10. The cutout 20 can also be round, oval, etc. The through holes 19 are provided with a circumferential indentation 21 . Through the feeder 21, a switch handle protection can be saved, which reduces the risk of injury to the user and scratching of the rotary toggle at the through hole 19 when Sinking and extending the retractable rotary knob 6 prevented. The indentation 21 is produced by bending the sheet metal blank (or by injection molding) used to manufacture the screen element 4 all the way around, namely by bending it out of the main extension plane E. The bent edge of the all-round indentation is designed to be round in order to reduce the risk of injury, in particular when operated to move out the retractable rotary knob 6.

To fix the screen element 4 in the width direction B on the body 3 (see 1 ) tabs 22 can be provided on the lower long side 16, for example, with the help of which the screen element 4 is screwed to the body 3.

3 shows the view 2 . Furthermore shows 3 an attachment in the form of a switch receptacle 23 for receiving one of the rotary knobs 6 (see 1 ) in its stowed position. 3 shows the switch mount 23 in its installed state.

The Figures 4 to 9 illustrate the structure and function of related 3 mentioned switch receptacle 23. The switch receptacle 23 has a base body 24 which comprises a first housing part 25 and a second housing part 26. The Figures 4 to 6 show the first housing part 25 with a first fastening element 27 of the switch holder 23 and the Figures 7 to 9 show the second housing part 26 with a second fastening element 28 of the switch receptacle 23. The first and second housing parts 25, 26 are each formed from a half-shell. Plastic or metal, such as steel, stainless steel or aluminum, or a combination of plastic and metal can be used as the material for the first and second housing part 25, 26 and for the first and second fastening element 27, 28, for example. The first and second housing part 25, 26 and the first and second fastening element 27, 28 can be produced as an injection molded part. The second housing part 26 comprises a plurality of latching lugs 29 which are formed on an outside of the second housing part 26 (see FIG 7 ). The first housing part 25 includes the same number of counter-locks 30 as the number of locking lugs 29 in the second housing part 26. The counter-locks 30 are arranged on an outer side of the first housing part 25 (see FIG 4 ). The first housing part 25 is joined to the second housing part 26 by the latching lugs 29 latching with the counter-latches 30 .

The 4 FIG. 1 also shows a guide element 31, which is embodied, for example, as a rail, and a wedge 32, which is embodied in one piece with the first housing part 25. The key 32 is formed on the outer surface of the first housing part 25 . The wedge 32 has a flat surface inclined with respect to a direction in which the attachment is mounted on the screen member 4 (herein also referred to as "mounting direction M"). The mounting direction M is in 10 illustrated. An angle of inclination α of the wedge 32, which is 10 shown may be between 15° and 45°, for example. On the flat inclined surface of the wedge 32, which points away from the base body 24, the rail 31 is arranged. The rail 31, like the wedge 32, is inclined at the same angle α. The cross-sectional shape of the rail 31 has a "T-shape". The rail 31 has a surface at the base of the "T" which connects the rail 31 to the wedge 32 and the inclined planar surface of the wedge 30 . The rail 31 has two cutouts 33a, 33b on an inclined planar surface facing away from the first housing part 25 (roof of the "T"). The shape of the openings 33a, 33b can be circular, square, rectangular, round or oval, for example.

The figure 5 shows the first fastener 27. The first fastener 27 is on the rail 31 ( 4 ) in a guiding direction F ( 10 ) of the same arranged linearly displaceable. The displacement direction of the first fastening element 27 is inclined at the same angle α as the rail 31 and the wedge 32 with respect to the mounting direction M. The rail 31 serves as a guide rail for the first fastening element 27. The first fastening element 27 has a guide counter-element 34, via which the first fastening element 27 is connected to the rail 31. In another exemplary embodiment, the counter-guiding element 34 can be arranged instead of the rail 31 on the surface of the wedge 32 pointing away from the base body 24 . For this purpose, the rail 31 can, for example, also be arranged on the first fastening element 27 instead of the counter-guiding element 34 . The shape of the cross section of the guide counter-element 34 preferably has a "C-shape". The counter-guiding element 34 encloses the rail 31 at its lateral end edges in the guiding direction F. The counter-guiding element 34 and the rail 31 can also have other profiles, for example the counter-guiding element 34 can enclose the rail 31 on the inside and/or outside. The rail 31 can, for example, also encompass the counter-guide element 34 on the inside and/or outside. The first fastener 27 is designed to to engage the connecting element 12 and to attach the base body 24 to the screen element 4, as will be explained in more detail later.

The rail 31 is formed in one piece with the first housing part 25 . The guide counter-element 34 is formed in one piece with the first fastening element 27 . The rail 31 can, for example, be formed in one piece with the first fastening element 27 instead of the counter-guiding element 34 . The guide counter-element 34 can, for example, be formed in one piece with the first housing part 25 instead of the rail 31 .

The 6 shows the rear view of the first fastening element 27. On the flat surface via which the first fastening element 27 is connected to the rail 31, the first fastening element 27 has a detent 35 in order to engage with one of the two cutouts 33a, 33b . The shape of the detent 35 corresponds to the shape of the openings 33a, 33b.

The 7 12 shows the second housing part 26, which comprises a guide element 36 and an inclined section 37 (also referred to herein as "further element"). The second housing part 26, the guide member 36 and the inclined portion 37 are formed in one piece. The guide element 36 and the inclined portion 37 can be made of plastic or metal, such as steel, stainless steel or aluminium, for example. The guide member 36 is formed on the surface of the second housing member 26 and has two angled portions whose cross section is an "L-shape". The "L - foot" of the respective section points away from the base body 24 to the outside. The inclined portion 37 is formed thin-walled, bent at one end and connected to the outer surface of the second housing part 26 at this end and arranged between the bent portions of the guide member 36 . The inclined portion 37 is inclined with respect to the mounting direction M, as is the wedge 32 . The angle of inclination of the inclined section 37 can be flatter than the angle of inclination α of the wedge 32, for example only 10°-20°. As a result, the travel of the fastening element 28 in the vertical direction H in order to engage with the connecting element 13 is shortened compared to the travel of the fastening element 27 in the vertical direction H in order to engage with the rail 12 . As a result, less installation space is advantageously required.

The guide member 36 is inclined to the mounting direction M at the same angle as the inclined portion 37 . Furthermore, the inclined section 37 has two breakouts 38a, 38b. The shape of the openings 38a, 38b can be, for example, circular, square, rectangular, round, oval or some other shape.

The 8 shows the second fastening element 28, which is designed to engage with the connecting element 13 and to fasten the base body 24 to the screen element 4, as will be explained in more detail later. The second fastening element 28 has an inclined surface on which a counter-guide element 39 is provided. The shape of the cross-section of the guide counter-element 39 preferably has a "C-shape". The guide counter-element 39 surrounds the guide element 36 at its lateral end edges in the guide direction. The counter-guide element 39 and the guide element 36 can also have other profiles, for example the counter-guide element 39 can encompass the guide element 36 on the inside and/or outside. The guide element 36 can, for example, also encompass the counter-guide element 39 on the inside and/or outside. The sliding direction of the second fastening member 28 is inclined at the same angle as the inclination angle of the guide member 36 and the inclined portion 37 with respect to the mounting direction M. The guide element 36 serves as a guide rail for the second fastening element 28.

The profile of the counter-guiding element 39 corresponds to the profile of the counter-guiding element 36 . For this purpose, the guide element 36 can, for example, also be arranged on the second fastening element 28 instead of the counter-guide element 39 . The counter-guide element 39 and the guide element 36 can also have other profiles, for example the counter-guide element 39 can encompass the guide element 36 on the inside and/or outside. The guide element 36 can, for example, also encompass the counter-guide element 34 on the inside and/or outside.

The guide element 36 is formed in one piece with the second housing part 26 . The guide counter-element 39 is formed in one piece with the second fastening element 28 . In an alternative embodiment, the guide element 36 can, for example, be formed in one piece with the second fastening element 28 instead of the counter-guide element 39 be. The guide counter-element 39 can, for example, be formed in one piece with the second housing part 26 instead of the guide element 36 . The side of the second fastening element 28 facing away from the counter-guide element 39 has two latching lugs 40 .

9 shows the rear view of the second fastening element 28. Another latching lug 41 is attached to its inside, which engages with one of the two openings 38a, 38b. The shape of the detent 41 corresponds to the shape of the openings 38a, 38b.

Before the switch receptacle 23 is mounted on the panel member 4, the first and second fasteners 27, 28 are attached to the base body 24 in a pre-assembled state, which will be described below. The first fastening element 27 is pushed onto the rail 31 until the detent 35 snaps into the cutout 33a, which is arranged closer to the panel element 4 in the mounting direction M. If the latching lug 35 latches into the cutout 33a, the first fastening element 27 is in a first position relative to the base body 24 . The detent 35 detachably engages in the cutout 33a in such a way that the first fastening element 27 can only be moved away from the base body 24 in the guide direction F. In contrast, moving back the first fastening element 27 counter to the guide direction F is blocked.

Analogous to this, the second fastening element 28 is pushed onto the guide element 36 . If the latching lug 41 engages in the breakout 38a, which is arranged closer to the screen element 4 in the assembly direction M, the second fastening element 28 is in a first position relative to the base body 24 . The detent 41 detachably engages in the cutout 38a in such a way that the second fastening element 28 can only be moved away from the base body 24 in the guide direction F. A backward movement of the second fastening element 28 counter to the guide direction F is, however, blocked. This prevents the first and second fastening elements 27, 28 from falling off the base body 24, in particular during assembly. Furthermore, the first and second fasteners 27, 28 need not be held by a worker or robot during assembly. This simplifies the assembly of the switch mount 23 .

Based on the pre-assembled state, the Figures 10 to 12 now the installation of the switch mount 23 on the screen element 4. 10 shows the switch mount 23 with the first and second fastening element 27, 28 in the preassembled state together with the panel element 4 perpendicular to the panel plane E. The first and second fastening element 27, 28 protrude beyond the base body 24 in the assembly direction M (see 10 ). For assembly, the base body 24 is positioned in the assembly direction M perpendicular to the panel plane E (see 3 ) moves, exclusively in this direction.

After the first and second fastening element 27, 28 come into contact with the screen element 4 (see 11 ), the first fastening element 27 is moved upwards in the direction shown (corresponds to the vertical direction H) and the second fastening element 28 is moved downwards in the direction shown (corresponds to the opposite to the vertical direction H), while the base body 24 is simultaneously moved towards the panel element 4. The first fastening element 27 moves away from the base body 24 along the rail 31 in the guide direction F (here also referred to as “moving away”). The detent 35 leaves the breakout 33a in the first position. The second fastening element 28 moves away from the base body 24 along the guide element 36 in the guide direction. The detent 41 leaves the breakout 38a in the first position. If the base body 24 moves further in the mounting direction M against the panel element 4, the first fastening element 27 moves along the rail 31 until the latching lug 35 engages in the second position in the opening 33b, which in the mounting direction M further from the opening 33b in away from the first position. The second fastening element 28 moves along the guide element 36 until the latching lug 41 engages in the breakout 38b in a second position, which is further away in the assembly direction M from the breakout 38b in the first position. At the same time, the first fastening element 27 comes into engagement with the double edging or with the pocket formed by this downward (opposite to the vertical direction) which is open and into which the first fastening element 27 engages in the vertical direction H. The latching lugs 40 of the second fastening element 28 engage with the breakout 13 (see FIG 12 ). The profile of the double edging corresponds to the profile of the first fastening element 27, so that it can only be displaced in the direction of extension E. The locking lugs 40 of the second fastening element 28 engage in the Outbreak 13 that moving out of the outbreak 13 is prevented. Accordingly, the switch mount 23 in the in 13 State shown fixed in six degrees of freedom (here also "assembled state").

The 13 shows a sectional view of the switch receptacle 23, which is mounted on the panel element 4, with a countersunk rotary knob 6.

The inclined portion 37 projects beyond the second attachment member 28, as shown in FIG 13 illustrated and accessible to a user. The inclined section 37 is designed to be elastically bendable, so that when it bends toward the base body 24, the latching lug 41 of the second fastening element 28 disengages from the breakout 38b. By simultaneously moving the base body 24 counter to the mounting direction M, the base body 24 can move the second fastening element 28 back counter to the guide direction F (the movement in this direction is also referred to here as "moving back" and in 10 marked with "Z") and can be removed from the screen element 4.

In another embodiment, instead of the wedge 32, an inclined section (not shown) is arranged, which is designed to be elastically bendable, so that when it bends toward the base body 24, the latching lug 35 of the first fastening element 27 disengages from the breakout 33b. As a result, the latching lugs 35 and 41 can be released from the cutouts 33b, 38b at the same time and the first and second fastening elements 27, 28 can be dismantled at the same time.

The connecting elements 12, 13 and the first and second fastening elements 27, 28 described here are advantageously all arranged on the rear side 11 of the panel element 4, so that they are not visible to a user operating the cooking appliance 1 as intended. In addition, as in 1 to see a smooth, closed surface of the screen element 4.

In principle, the assembly of the switch receptacle 23 described here and the pre-assembly of the first and second fastening elements 27, 28 on the attachment 23 can be carried out manually or in an automated manner. Instead of or in addition to the connecting elements 12, 13 and the first and second fastening elements 27, 28 described here non-detachable types of connection, such as clinching, can also be used.

In the present description, the attachment is described using the example of a switch mount 23 . Additional add-on parts can be a WLAN module, a sound module, a display 10 or the like.

Although the present invention has been described using exemplary embodiments, it can be modified in many ways.

Reference signs used:

1

cooking appliance

2

panel system

3

body

4

aperture element

5

door

6

rotary knob

7

symbols

8th

mark

9

front

10

screen

11

back

12

rail

13

outbreak

14

long edge

15

simple edge

16

long side

17

Section

18

Section

19

through hole

20

recess

21

Indent

22

tab

23

switch mount

24

body

25

housing part

26

housing part

27

fastener

28

fastener

29

detent

30

counter catch

31

rail

32

wedge

33a

outbreak

33b

outbreak

34

leadership counterpart

35

detent

36

guide element

37

inclined section

38a

outbreak

38b

outbreak

39

leadership counterpart

40

detent

41

detent

B

latitude direction

E

main extension level

f

guidance direction

H

vertical direction

M

mounting direction

T

depth direction

a

tilt angle

Claims (15)

Attachment (23) for attachment to a panel element (4), with a base body (24), a guiding and counter-guiding element (31, 34, 36, 39) and a fastening element (27, 28), which with the aid of the guiding and The counter-guiding element (31, 34, 36, 39) is guided in relation to the base body (24) in such a way that it moves away (F) from the base body (24) and engages when the add-on part (23) is mounted on the panel element (4). with the screen element (4) for fastening the add-on part (23) to the screen element (4). Attachment (23) according to Claim 1, characterized in that in a pre-assembled state of the attachment (23) the fastening element (27, 28) on the base body (24) with the aid of the guiding and guiding counter-element (31, 34, 36, 39) is fastened in such a way that the moving away of the fastening element (27, 28) from the base body (24) is releasably blocked. Attachment (23) according to Claim 2, characterized in that when the attachment (23) is in an assembled state, the fastening element (27, 28) is in engagement with the screen element (4), the attachment (23) being between the pre-assembled state and can be transferred to the mounted state by moving the fastening element (27, 28) away from the base body (24), wherein in the mounted state moving back of the fastening element (27, 28) towards the base body is blocked, in particular releasably. Attachment (23) according to any one of claims 1 - 3, wherein the moving away (F) and/or moving back (Z) is a displacement in a straight line. Attachment (23) according to one of claims 1 - 4, wherein the base body (24) for the assembly of the attachment (23) is movable in an assembly direction (M) towards the screen element (4), whereby the fastening element (27, 28) and/or one of the guiding and counter-guiding elements (31, 34, 36, 39) comes into contact with the screen element (4), which causes the fastening element (27, 28) to be moved away from the base body (24). Add-on part (23) according to one of Claims 1 - 5, characterized in that the guiding and counter-guiding element (31, 34, 36, 39) have a rail and a profile which encompasses the rail. Attachment (23) according to Claim 5 or 6, characterized in that the straight line and/or the rail is inclined relative to the direction of assembly (M). Attachment (23) according to one of Claims 1 - 7, characterized in that the guiding and counter-guiding element (31, 34, 36, 39) for the releasable locking of the moving away and/or locking of the backward movement together or one of the guiding and Guide counter-element (31, 34, 36, 39) with a further element (37) are releasably latched. Attachment (23) according to one of Claims 1 - 8, characterized in that one of the guiding and counter-guiding elements (31, 34, 36, 39) is fastened to the base body (24) with the aid of a wedge (32, 37). Attachment (23) according to one of Claims 1 - 9, characterized in that at least one of the guide and counter-guide element (31, 34, 36, 39) and/or the wedge (32, 37) is integral with the base body (24) and/or the respective other of the guide and counter-guide element (31, 34, 36, 39) is formed in one piece with the fastening element (27, 28). Attachment (23) according to one of Claims 1 - 10, characterized in that a first and a second fastening element (27, 28) with the aid of a respective guide and counter-guide element (31, 34, 36, 39) with respect to the base body (24) are guided in such a way that they move away from the base body (24) when the attachment (23) is mounted on the screen element (4) and engage with the screen element (4) for fastening the attachment (23) to the screen element (4) the first and second fastening elements (27, 28) being arranged on opposite sides of the base body (24) and the first and second fastening elements (27, 28) being moved away from the base body (24) in opposite directions. Attachment (23) according to any one of Claims 1 - 11, characterized in that the base body (24) is formed from two half-shells (25, 26) which are connected to one another. Attachment (23) according to one of Claims 1 - 12, characterized in that the base body (24) has a display device, in particular a display (10), an operating element, in particular a switch or a switch holder (23), for example a holder for a retractable rotary knob (6), a positioning device for positioning the panel element (4) relative to a body of the cooking appliance (1), a communication device, in particular a WLAN module, a loudspeaker device and/or other attachments on the appliance, in particular a steam hinge. Screen system (2) with a screen element (4) and an attachment (23) according to one of Claims 1 - 13, wherein the attachment (23) can be fastened or is fastened to the screen element (4) by the fastening element (27, 28) of the Attachment (23) engages in the panel element (4). Cooking appliance (1), in particular stove or oven, with a panel system (2) according to claim 14.

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