DE102019212379A1 - Turn-push control for operating a control unit with a control panel - Google Patents

Abstract

The invention relates to a rotary push button (1,1a, 1b, 1c) for operating an operating unit (13) with a control panel (12), the rotary push button (1,1a, 1b, 1c) having an axis of rotation (D) , wherein the rotary push button (1,1a, 1b, 1c) is rotatable about the axis of rotation (D) and axially movable along this axis of rotation (D), and wherein the rotary push button (1,1a, 1b, 1c) Signal transmitter (5) with at least one signal element, which is used for the contactless transmission of the rotary and / or pushing movements to the control unit (13) and / or the control panel (12) at least when rotating and / or pressing the rotary push button (1,1a, 1b, 1c), and wherein the rotary push button (1,1a, 1b, 1c) is designed to be placed on the control panel (12) and to be releasably adhered to the control panel (12), and the rotary push button (1 , 1a, 1b, 1c) is further designed for translational displacement on the control panel (12) after adhering to the control panel (12), characterized in that The rotary push button (1,1a, 1b, 1c) has a protective element (8,8a, 8b, 8c) with which the rotary push button (1,1a, 1b, 1c) can be placed on the control panel (12) , and which is designed to exercise a wear protection function in relation to the placing and moving of the rotary push button (1,1a, 1b, 1c) on the control panel (12).

Description

The invention relates to a rotary push button for operating a control unit with a control panel, the rotary push button having an axis of rotation, and the rotary push button being rotatable about the axis of rotation and also axially movable along this axis of rotation, and the rotary push button being a Has signal transmitter with at least one signal element, which is designed for contactless transmission of the rotary and / or pushing movements to the control unit and / or the control panel at least when rotating and / or pushing the rotary push button, and wherein the rotary push button to be placed on the Control panel and is designed to be releasably adhered to the control panel, and wherein the rotary push button is also designed to be moved in translation on the control panel after adhering to the control panel.

Turn-push actuators are known for control units with a control panel in vehicles. Such control units with control panels are usually designed as a touchscreen with a touchscreen surface.

A touchscreen is a display that detects a touch on a touchscreen surface and reacts to it. A resistive touchscreen, for example, registers touch signals through a flexible touchscreen surface, which is usually a plastic or glass plate coated with a film of transparent conductive oxide (TCO-Transparent Conductive Oxide). The touch causes the surface cover plate to deform and contact an internal conductive substrate, thereby varying the resistance and current of the circuit and producing a result.

Such touchscreens are used in navigation systems, entertainment systems such as radio, etc., for example.

Rotary push buttons are known for controlling. It is controlled by turning and selecting a menu item and selecting the menu item by pressing the turn-push button.

The use of a rotary push button, in particular a displaceable rotary push button, however, easily leads to scratches and surface damage in the touchscreen surface. As a result, the appearance suffers extremely. Under certain circumstances, the functionality can even be impaired.

However, due to the long service life of a motor vehicle, the touchscreen must work properly even after many years of use and meet the optical requirements without any visible signs of wear. For this purpose, the touchscreen surface is coated, for example, which, however, leads to increased costs.

The DE 20 2004 006 598 U1 discloses a touch-sensitive display device (touchscreen) with a display unit, in particular a screen, and a sensor element with a touch-sensitive surface, the sensor element emitting information signals relating to the touch position to a control device when touched, the touch-sensitive surface of the sensor element being completely covered by a transparent, flexible protective cover is covered, which is kept replaceable.

The object of the invention is to specify a rotary push button which is optimized for use on a touch screen or another control panel.

This object is achieved by a rotary push button with the features of claim 1.

The subclaims list further advantageous measures that can be combined with one another in any suitable manner in order to achieve further advantages.

The object is achieved by a rotary push button for operating an operating unit with a control panel, the rotary push button having an axis of rotation,
wherein the rotary push button is rotatable about the axis of rotation and also axially movable along this axis of rotation, and wherein the rotary push button has a signal transmitter with at least one signal element, which for contactless transmission of the rotary and / or push movements to the operating unit and / or the Control panel is designed at least when turning and / or pressing the rotary push button,
and wherein the rotary push button is designed to be placed on the control panel and to be releasably adhered to the control panel
and wherein the rotary push button is further designed for translational displacement on the control panel after adhering to the control panel,
in which
the rotary push button has a protective element with which the rotary push button can be placed on the control panel and which is designed to exercise a wear protection function against the setting and displacement of the rotary push button on the control panel.

With the wear protection function, for example, the prevention / reduction of, for example, signs of wear, For example, damage such as scratches, depressions, dents, etc. or other damage to the control panel can be understood. A wear protection function therefore serves to protect the control panel.

A signal element is, for example, a sensor that can register the rotary and push movements of the rotary push button. Other designs, for example magnets, are also possible with a corresponding design of the control panel / control unit. After placing / moving on the control panel, the control panel or the control unit recognizes the position of the rotary push button and the functions linked to it. Turning or pressing the rotary push button is recognized according to the same principle.

According to the invention, it was recognized that when the flexible, removable and displaceable rotary push button is put on and in particular when it is moved, the control panel, in particular a touch-sensitive touchscreen surface, can be scratched. This is particularly the case when it comes to a flexible, usable rotary push button that can be repeatedly put on and off the touchscreen surface / display surface / the control panel and can be moved on it.

The protective element prevents signs of wear / damage to the control panel in a simple and inexpensive way, without the need for a further separate, expensive surface coating of the control panel. Damage, for example in the form of scratches, on the control panel can thus be avoided.

The protective element can also improve the sliding properties of the rotary push button on the control panel.

Thus, the removable, flexible rotary push button according to the invention can be used on all control panels, such as display surfaces, touchscreen surfaces, even without special surface protection.

The operating unit is preferably designed as a display / touchscreen module and the control panel is designed as a touchscreen surface / display surface.

The protective element can have any shape, in particular round or square.

The protective element preferably comprises a soft coating. This can preferably be made of soft woven, felt or fleece material. Furthermore, the coating can also be a combination of soft woven, felt or fleece material. Such a coating is simple and inexpensive. Furthermore, cleaning of the control panel can also be achieved by such a protective element.

Alternatively or optionally in addition, the protective element is covered with a sliding film.

Furthermore, the protective element is preferably designed to contribute to the adhesion of the rotary push button on the control panel or to bring about the adhesion. The adhesion can be achieved for example by vacuum and / or by built-in magnets (magnetism) in the protective element and / or by cohesion and / or adhesion. The attachment can also be effected through electricity.

Improved adhesion can thereby be achieved. In a preferred embodiment, the protective element consists of rubber or comprises rubber. Furthermore, the protective element can comprise a gel or consist of a gel. This can bring about the sliding property on the control panel and / or an increase in adhesion.

Furthermore, the protective element preferably has a square circumference. With a square configuration of the protective element and with a configuration of the protective element, for example, as a soft fabric such as felt, the corners of a square control panel, for example a square display surface / touchscreen surface, can be cleaned very easily.

In a further preferred embodiment, the protective element has a different geometric circumferential shape than the geometric circumferential shape of a surface of the rotary push button facing the protective element. A circumferential shape is to be understood as a geometric shape of a circumference. Thus, for example, the protective element can have a square shape, while the rotary push button without the protective element has a round circumference.

The protective element is preferably designed to completely cover a surface of the rotary push button that faces the protective element. In this way, for example, the control panel can be cleaned more intensely if the protective element is made of felt, for example.

The rotary push button preferably has a base element, the base element being designed in such a way that when the rotary push button rests on a section of the control panel at least the support section can be seen through the floor element,
and wherein the signal transmitter is mounted rotatably about the axis of rotation in the base element, as well as axially movable along this axis of rotation in the base element, and wherein the signal transmitter is designed such that when the signal transmitter is mounted in the base element, the support section can be recognized by the signal transmitter and the base element is
and wherein the rotary push button has an optical lens acting as a magnifying glass, the optical lens acting as a magnifying glass being directly or indirectly firmly connected to the floor element or indirectly or directly firmly to the signal transmitter, so that the supporting section through the optical lens acting as a magnifying glass is projectable towards the user and
wherein the protective element for resting on the control surface is arranged on the floor element in such a way that the supporting section can be seen through the magnifying glass, the signal transmitter, the floor element and the protective element itself.

After placing it on the control panel, the control panel or the control unit recognizes the position of the rotary push button and the functions linked to it. The symbol associated with the function is projected through the protective element, the floor element, the signal transmitter and the optical lens to the user onto a surface of the optical lens.

As a result, the symbol is perceived enlarged and the optical lens thus acts as a magnifying glass. The driver of a vehicle is thus less distracted from the traffic situation due to the enlarged display of a symbol than if he first had to search for a very small symbol on a touchscreen, for example, and then actuate it with a finger touch.

The optical lens, which acts as a magnifying glass, allows the user to easily recognize a symbol (which represents the function) on the control panel without having to search and thus being distracted from the traffic situation for too long. This reduces the risk of accidents.

The signal element of the signal transmitter is preferably designed at least as a magnet, the base element, the optical lens acting as a magnifying glass, the signal transmitter and the protective element not being magnetic. Not magnetic also includes weakly magnetic. As a result, with a corresponding design of the control panel or the control unit, the rotary push button can be caused to stick by magnetism. However, a different or additional configuration of the signal elements, for example as a force sensor and / or a displacement sensor, is also possible.

In a further preferred embodiment, at least one magnet is arranged in the signal transmitter in such a way that the rotation of the rotary push button around the axis of rotation and the associated rotation of the signal transmitter causes a rotation of the at least one magnet arranged in the signal transmitter, so that the rotary movement is contactless the control panel is portable.

Furthermore, the at least one magnet is preferably arranged in the signal transmitter in such a way that by pressing the rotary push button and the associated axial movement of the signal transmitter along the axis of rotation, an axial movement of the at least one magnet arranged in the signal transmitter is effected, so that the axial movement is contactless can be transferred to the control panel.

The at least one magnet is preferably arranged in the signal transmitter in such a way that a displacement of the at least one magnet arranged in the signal transmitter is caused by a displacement of the rotary push button and the associated displacement movement of the signal transmitter, so that the displacement movement can be transmitted to the control panel without contact.

In a further preferred embodiment, the protective element is firmly connected to the floor element. The protective element is preferably cohesively connected to the floor element. This ensures a fixed arrangement of the protective element on the floor element; the protective element cannot easily become detached from the floor element.

The protective element is preferably connected to the floor element by adhesion. In particular, the protective element can be glued to the floor element. This enables a particularly simple connection which, for example, can also be attached to each rotary push button at a later date.

• 1: eine erste Ausgestaltung eines erfindungsgemäßen Dreh-Drückstellers,
• 2: den erfindungsgemäßen Dreh-Drücksteller in Explosionsdarstellung,
• 3: eine weitere Ausgestaltung eines erfindungsgemäßen Dreh-Drückstellers in Explosionsdarstellung,
• 4: eine Anwendung des erfindungsgemäßen Dreh-Drückstellers auf einem Bedienfeld,
• 5: eine weitere Ausgestaltung eines erfindungsgemäßen Dreh-Drückstellers,
• 6: eine weitere Ausgestaltung eines erfindungsgemäßen Dreh-Drückstellers.

Further features, properties and advantages of the present invention emerge from the following description with reference to the accompanying figures. They show schematically:

• 1 : a first embodiment of a rotary push button according to the invention,
• 2 : the rotary push button according to the invention in an exploded view,
• 3 : Another embodiment of a rotary push button according to the invention in an exploded view,
• 4th : an application of the rotary push button according to the invention on a control panel,
• 5 : a further embodiment of a rotary push button according to the invention,
• 6th : Another embodiment of a rotary push button according to the invention.

Although the invention has been illustrated and described in detail by the preferred exemplary embodiments, the invention is not restricted by the examples disclosed. Variations on this can be derived by the person skilled in the art without departing from the scope of protection of the invention as defined by the following patent claims.

1 shows a first embodiment of a removable, flexibly usable rotary push button according to the invention 1 which in 2 will be described in more detail, with an axis of rotation D. The rotary push button 1 can be rotated around the axis of rotation D, which is indicated here with a rotating arrow "Turn". Furthermore, the rotary push button is 1 axially movable along the axis of rotation D, which is indicated here with an arrow “Push”. Furthermore, the rotary push button according to the invention 1 a protective element 8th to be placed on a control panel 12 on.

In this exemplary embodiment, the rotary push button is 1 with the protective element 8th formed around the circumference.

Due to the round shape in relation to the circumference, there is a structurally small rotary push button 1 possible.

The protective element 8th can be made of different materials. The protective element 8th can do the to the control panel 12 indicating surface of the turn-push button 1 cover completely.

Through the protective element 8th can use the control panel 12 especially when the rotary push button is put on 1 on the control panel 12 or when moving the turn-push button 1 on the control panel 12 to be protected.

2 shows the rotary push button according to the invention 1 in exploded view. The rotary push button 1 has a floor element 2 on. The floor element 2 has a substantially round base plate 3 with a cylindrical vertical bottom wall 4th on. Preferably the base plate is 3 transparent, that is to say transparent, so that when placed on the control panel 12 ( 1 ) that support cutout of the control panel 12 ( 1 ) on which the floor element 2 is positioned, shines through or through the base plate 3 you can see.

Furthermore, the rotary push button 1 a signal transmitter 5 on. The signal generator 5 is in the floor element 2 at least partially stored in such a way that the signal transmitter 5 in the floor element 2 is rotatable about the axis of rotation D. In addition, the signal transmitter is 5 in the floor element 2 stored so that the signal transmitter 5 in the floor element 2 is axially movable (pushable) along the axis of rotation D. The signal generator 5 has at least one signal element, for example a sensor, which here acts as three magnets 6th are designed. The signal generator 5 is preferably designed as a circular area or designed as a circular signal ring, the magnets 6th are arranged at equidistant intervals in the circular area or in the signal ring.

Using the magnets 6th can do the rotary push button 1 on the control panel 12 ( 1 ) adhere soluble. About the rotation / axial displacement of the signal transmitter 5 or the magnets 6th in the control panel 12 ( 1 ) to register, the floor element 2 not be magnetic or at best only slightly magnetic. The control panel must also 12 ( 1 ) or the control unit 13 ( 4th ) preferably be designed for the translational displacement as well as the rotation about the axis of rotation D, also the pressing axially along the axis of rotation D of the magnets 6th and the corresponding functions on the control panel 12 display or execute. Furthermore, the signal transmitter 5 prefers an inner ring collar 10 on.

Furthermore, the rotary push button comprises 1 a hollow element designed as a hollow cylinder 9 which is firmly attached to the signal transmitter 5 connected to. The signal transmitter is preferred 5 through the inner ring collar 10 on the hollow element 9 arranged. However, other connection options are also possible. By means of the hollow element 9 it is possible for the user to switch the signal generator 5 easy to turn.

Furthermore, the rotary push button comprises 1 an optical lens 11 which acts as a magnifying glass. The optical lens 11 is preferably designed as a simple convex converging lens with a small focal length. Preferably the optical lens is 11 on the floor element 2 attached. The optical lens 11 is thus immobile / rigid on the floor element 2 attached. This causes the optical lens to move 11 not with if the rotary push button 1 rotated or pressed.

Furthermore, the rotary push button comprises 1 a protective element 8th , which on the floor element 2 is arranged so that the support section through the magnifying glass 11 , the hollow element 9 , the signal generator 5 , the floor element 2 and the protective element 8th itself is recognizable through it.

The protective element 8th for example consist of a transparent material, for example a transparent gel pad / gel paste. The protective element 8th can the floor element 2 cover completely.

3 shows a rotary push button 1a in a further embodiment. As in 2 , a floor element 2 , a signal transmitter 5 and a hollow element 9 as well as a magnifying glass 11 on.

Furthermore, the rotary push button 1a to be placed on the control panel 12 a protective element 8a on, the protective element 8a configured in this way and on the floor element 2 is arranged that the support section through the magnifying glass 11 , the signal generator 5 , the floor element 2 and the protective element 8a itself is recognizable through it. The protective element 8a have a round circumference with a central hole.

The protective element 8a can be made of soft fabric such as felt. Felt is also suitable for removing dirt such as fingerprints 7th on the control panel 12 .

4th shows an application of the rotary push button according to the invention 1a on the control panel 12 with a protective element 8a . The control panel 12 and the control unit 13 can for example be designed as a touchscreen module, for example as a navigation system or an entertainment system of a vehicle. Further is the control panel 12 and / or the control unit 13 designed for the signal elements and their position on the control panel 12 as well as a shift in the signal elements.

The rotary push button 1a comes with the protective element 8a by the user on the control panel 12 placed on a support section. Through the signal elements and a correspondingly designed control panel 12 the rotary push button adheres 1 on the control panel 12 solvable. Furthermore, the rotary push button is 1 on the control panel 12 movable. Through the protective element 8a such a shift does not result in scratches / cracks in / on the control panel 12 .

Here the support section shows a "raindrop". With the optical lens acting as a magnifying glass 11 the viewer can now see the "raindrop" enlarged. The control panel 12 recognizes the position of the signal elements. The viewer now turns the turn-push button 1a so is the control panel 12 and / or the control unit 13 designed to recognize this and thereby activate certain functions. This can be done by turning the rotary push button 1a on that support section of the control panel 12 , which shows the "raindrop", for example an automatic distance to the vehicle in front depending on the speed, for example in heavy rain or another function can be activated. Furthermore, when you press the rotary push button 1a another function can be activated.

Through the protective element 8a can also clean the control panel 12 be effected if the protective element 8a made of felt or other soft material. This protects the protective element 8a not only when moving the rotary push button 1a the control panel 12 , but also cleans it. Furthermore, increased adhesion of the rotary push button 1a be effected if, for example, a on the control panel 12 adhesive material such as rubber is used.

5 shows a further embodiment of a rotary push button according to the invention 1b with an axis of rotation D. The rotary push button 1b can be rotated around the axis of rotation D, which is indicated here with a rotating arrow "Turn". Furthermore, the rotary push button is 1b axially movable along the axis of rotation D, which is indicated here with an arrow “Push”. The rotary push button according to the invention 1b has a protective element 8b which is to be placed on the control panel 12 ( 4th ) is designed.

The protective element 8b is angular. This embodiment serves in particular not only for protection, but also for cleaning, in particular in the corners of a square control panel 12 ( 4th ). This can remove the hard-to-reach corners of a control panel 12 ( 4th ) getting cleaned.

6th shows a further embodiment of a rotary push button with a quadrangular circumference 1c with a likewise square protective element 8c .

A quadrangular turn-push plate 1c with a protective element that is also square 8c allows cleaning especially in the corners of the control panel 12 ( 4th ).

Other geometric shapes of protective elements or rotary push buttons are also possible.

These can be elongated or elliptical, for example.

The removable and flexibly usable rotary push button according to the invention 1 , 1a , 1b , 1c has a protective element 8th , 8a , 8b , 8c on which the signs of wear such as scratches of the control panel 12 a control unit 13 preferably a touch screen when the rotary push button is placed on or moved 1 , 1a , 1b , 1c prevented or at least reduced. Furthermore, the protective element 8th , 8a , 8b , 8c be designed to prevent the adherence of the entire rotary push button 1 , 1a , 1b , 1c on the control panel 12 to accomplish (holding function) or at least to support this attachment.

The protective element 8th , 8a , 8b , 8c for example have magnets for adherence to a magnetically designed operating unit 13 .

The protective element 8th , 8a , 8b , 8c can be round, square, elliptical or have another geometric shape.

Depending on the material used for the protective element 8th , 8a , 8b , 8c can also use the sliding properties of the rotary push button 1 , 1a , 1b , 1c on the control panel 12 be improved.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 202004006598 U1 [0008]

Claims (12)

Rotary push button (1,1a, 1b, 1c) for operating an operating unit (13) with an operating panel (12), the rotary push button (1,1a, 1b, 1c) having an axis of rotation (D) -Push actuator (1,1a, 1b, 1c) rotatable about the axis of rotation (D) and axially movable along this axis of rotation (D), and wherein the rotary push actuator (1,1a, 1b, 1c) is a signal transmitter (5) with at least one signal element, which for the contactless transmission of the rotary and / or pushing movements to the control unit (13) and / or the control panel (12) at least when rotating and / or pressing the rotary push button (1,1a, 1b, 1c ) is designed, and wherein the rotary push button (1,1a, 1b, 1c) is designed to be placed on the control panel (12) and to be releasably adhered to the control panel (12) and wherein the rotary push button (1,1a, 1b, 1c) is also designed for translational displacement on the control panel (12) after adhering to the control panel (12), characterized in that the rotary push button ( 1,1a, 1b, 1c) has a protective element (8,8a, 8b, 8c) with which the rotary push button (1,1a, 1b, 1c) can be placed on the control panel (12), and which is used for exercising a wear protection function against placing and moving the rotary push button (1,1a, 1b, 1c) on the control panel (12). Turn-push adjuster (1,1a, 1b, 1c) Claim 1 , characterized in that the protective element (8,8a, 8b, 8c) is designed to contribute to the adhesion of the rotary push button (1,1a, 1b, 1c) on the control panel (12) or to accomplish the adhesion. Turn-push adjuster (1,1a, 1b, 1c) Claim 1 or 2 , characterized in that the protective element (8,8a, 8b, 8c) comprises a soft coating. Turn-push adjuster (1,1a, 1b, 1c) Claim 3 , characterized in that the soft coating is made of soft woven, felt or fleece material or combinations of these. Rotary push button (1,1a, 1b, 1c) according to one of the preceding claims, characterized in that the protective element (8,8a, 8b, 8c) consists of rubber or comprises rubber or that the protective element (8,8a, 8b, 8c ) comprises or consists of a gel. Rotary push button (1,1a, 1b, 1c) according to one of the preceding claims, characterized in that the protective element (8,8a, 8b, 8c) has a square circumference. Rotary push button (1,1a, 1b, 1c) according to one of the preceding claims, characterized in that the protective element (8,8a, 8b, 8c) has a different geometric circumferential shape than the geometric circumferential shape of one of the protective elements (8,8a, 8b , 8c) facing surface of the rotary push button (1,1a, 1b, 1c). Rotary push button (1,1a, 1b, 1c) according to one of the preceding claims, characterized in that the rotary push button (1,1a, 1b, 1c) has a base element (2), the base element (2) being designed in this way is that when the rotary push button (1,1a, 1b, 1c) is placed on a section of the control panel (12), at least the support section can be seen through the base element (2), and the signal transmitter (5) about the axis of rotation (D ) is rotatably mounted in the base element (2) and axially movable along this axis of rotation (D) in the base element (2), and wherein the signal transmitter (5) is designed such that when the signal transmitter (5) is mounted in the base element (2) the support section can be seen through the signal transmitter (5) and the base element (2), and the rotary push button (1,1a, 1b, 1c) has an optical lens (11) that acts as a magnifying glass, the magnifying glass acting optical lens (11) directly or indirectly fixed to the floor element (2) or indirectly or directly elbar is firmly connected to the signal transmitter (5) so that the support section can be projected in the direction of the user through the optical lens (11) acting as a magnifying glass, and the protective element (8, 8a, 8b, 8c) to rest on the control surface (12 ) is arranged on the floor element (2) in such a way that the support section can be seen through the magnifying glass, the signal transmitter (5), the floor element (2) and the protective element (8, 8a, 8b, 8c) itself. Turn-push adjuster (1,1a, 1b, 1c) Claim 8 , characterized in that the signal element of the signal transmitter (5) is designed at least as a magnet (6) and wherein the base element (2), the optical lens (11) acting as a magnifying glass, the signal transmitter (5) and the protective element (8,8a , 8b, 8c) are not magnetic. Turn-push adjuster (1,1a, 1b, 1c) Claim 9 , characterized in that the at least one magnet (6) is arranged in the signal transmitter (5) in such a way that the rotation of the rotary push button (1,1a, 1b, 1c) around the axis of rotation (D) and the associated rotation of the Signal transmitter (5) a rotation of the at least one magnet (6) arranged in the signal transmitter (5) is effected so that the rotary movement can be transmitted without contact to the control panel (12) and the at least one magnet (6) in the signal transmitter (5) in this way is arranged that by pressing the rotary push button (1,1a, 1b, 1c) and thus associated axial movement of the signal transmitter (5) along the axis of rotation (D) an axial movement of the at least one magnet (6) arranged in the signal transmitter (5) is effected so that the axial movement can be transmitted to the control panel (12) without contact. Rotary push button (1,1a, 1b, 1c) according to one of the preceding Claims 9 or 10 , characterized in that the at least one magnet (6) is arranged in the signal transmitter (5) in such a way that a displacement of the rotary push button (1,1a, 1b, 1c) and the associated displacement movement of the signal transmitter (5) the at least one magnet (6) arranged in the signal transmitter (5) is effected so that the sliding movement can be transmitted to the control panel (12) without contact. Rotary push button (1,1a, 1b, 1c) according to one of the preceding Claims 8 to 11 , characterized in that the protective element (8, 8a, 8b, 8c) is materially connected to the floor element (2), in particular is glued.

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