System for reproducing structure-borne noise

Abstract

The invention relates to a device (1) for reproducing structure-borne noise, comprising an upper housing part (2), a lower housing part (3), and a central housing part (4) which are detachably secured to one another and each of which forms part of the outer surface of the device (1). The upper housing part (2) forms an upper segment of a sphere or an egg, the central housing part (4) forms a first layer of the sphere or the egg, and the lower housing part (3) forms a second layer of the sphere or the egg. The electronics of the device (1) are provided in the first layer, and a structure-borne noise emitter (9) of the device (1) is secured in a cavity in the lower housing part (3). The invention also relates to a suction cup holder for securing a device (1) for reproducing structure-borne noise to a smooth surface.

Description

[0001] Device for reproducing structure-borne sound

[0002] The invention relates to a device for playing music by means of a body.

[0003] Devices for reproducing music via a body-like transducer are known in the art, for example from CN107682757 (A) and CN204836456 (U). The principle is based on the fact that the vibrations of a body-like transducer of the device are transferred to a suitable body. The vibrations of the body are then emitted into the environment as audible tones. Suitable bodies include, for example, furniture, car body parts, glass panes, and wooden elements. The body can also be the human body, in which case the transducer can transmit the sound to the eardrum via bone conduction.

[0004] Devices for playing back music in an egg shape are also known; in these devices, the music is stored on an SD card, which is inserted into an SD slot located on the outside of the casing. These known devices are not waterproof. Suction cups as accessories for mounting on glass panes are also known; these have a large suction cup with a long stem, whereby the music signal is adversely transferred to the glass pane via the stem and the suction cup.

[0005] The object underlying the invention is to provide an improved device for the reproduction of body parts. A further object is to provide an improved suction cup mount.

[0006] To solve the problem, a device according to claim 1 is proposed. To solve the further problem, an improved suction cup mount according to claim 18 is proposed.

[0007] In one embodiment, a device for reproducing body shape is proposed, comprising an upper housing part, a lower housing part, and a middle housing part, which are detachably attached to one another and each form a part of the outer surface of the device, wherein the upper housing part forms an upper segment of a sphere or an egg, the middle housing part forms a first layer of the sphere or egg, and the lower housing part forms a second layer of the sphere or egg, wherein the electronics of the device are located in the first layer and a body shape sensor of the device is attached in a cavity in the lower housing part.

[0008] Another name for egg-shaped device is ovoid. The device can therefore be either a sphere or an ovoid. An ellipsoid is also encompassed by the terms egg or ovoid. Viewed from above, perpendicular to the base, the device appears circular and, parallel to the base, has essentially circular cross-sections with initially increasing and then decreasing diameters. Perpendicular to the base, the device has a spherical, elliptical, oval, or egg-shaped cross-section, the lower segment of which is truncated. Preferably, the upper and lower housing parts are made of metal, and the middle housing part is made of a material penetrable by electromagnetic signals, in particular plastic.

[0009] It is preferred that the upper housing part has a cavity on its side facing the middle housing part, the inner wall of which is provided with a thread and the middle housing part has a corresponding external thread.

[0010] Preferably, the middle housing part comprises an outer section forming the surface of the first layer of the sphere or egg and an inner disk-shaped section, wherein an energy storage device is located on one side of the disk-shaped section and a circuit board for the electronics of the device is located on the other side of the disk-shaped section.

[0011] Preferably, the energy storage device is located in a cavity of the middle housing part and projects into the cavity of the upper housing part.

[0012] Preferably, the structure-borne sound transducer of the device is screwed into the lower housing part and the middle housing part is attached to the structure-borne sound transducer, in particular screwed on.

[0013] Preferably, the lower housing part has a circumferential recessed groove on its upper end face, into which an annular bridge of the middle housing part projects.

[0014] Preferably, the cavity of the lower housing part is open on both sides and the device comprises a mounting flange and a diaphragm, wherein the mounting flange is attached to the structure-borne sound transducer and protrudes from the opening of the lower housing part, wherein there is a gap between the lower housing part and the mounting flange, which gap is sealed to the inside of the housing by the diaphragm.

[0015] Preferably, the membrane is ring-shaped and is pressed on its inner area between the mounting flange and the structure-borne sound transducer, optionally with an inner compression ring, and on its outer side between the lower housing part and the structure-borne sound transducer, optionally with an outer compression ring.

[0016] Preferably, the mounting flange is screwed to the structure-borne sound transducer by an external screw that passes through a bore in the mounting flange, wherein the mounting flange and the structure-borne sound transducer are connected in a rotationally fixed manner via a centering extension. The centering extension can be located on the structure-borne sound transducer or the mounting flange and project into a recess in the other part. The rotationally fixed connection is achieved by the centering extension being eccentrically positioned or shaped eccentrically or differently than circular.

[0017] Preferably, a first seal is provided between the upper housing part and the middle housing part, and a second seal is provided between the lower housing part and the middle housing part. A waterproof charging port is provided on the middle housing part. Preferably, the device includes a data storage device and a wireless data interface located in the middle housing part, a display located behind a transparent section of the middle housing part, and sensors located in the middle housing part that detect touching or approaching a finger on the outside of the middle housing part at at least two input areas.

[0018] Preferably, the device includes a base which forms a third layer of the sphere or egg.

[0019] It is preferred that the base is attached to the mounting flange, in particular screwed on.

[0020] Preferably, the device includes several different accessories which can be optionally attached to the device and which are selected from at least two accessories from the group: stand, gliding element, point massage element, wall mounting element, suction cup holder.

[0021] It is preferred that each of the different accessories has a disc-shaped area, on the side of which facing the device there is a recess or an opening, in which recess or opening there is an internal thread with which the accessory can be screwed onto the device.

[0022] Preferably, an accessory is a point massage element which has a point massage pin which is screwed into the disc-shaped area of ​​the accessory and is interchangeable with other point massage pins with different sized tips or heads.

[0023] One embodiment relates to an improved suction cup mount for attaching a device for reproducing structure-borne sound to a smooth surface, wherein the mount comprises a housing element which can be screwed onto the device, in particular onto a mounting flange of the device, wherein the housing element comprises three receptacles for suction cups, wherein in each receptacle a suction cup is located in a recess of the housing element, wherein the lower surface of the device and / or the housing element rests against the smooth surface when the suction cups are pressed against the smooth surface.

[0024] Preferably, the suction cups are provided with push buttons, wherein a spring is located between the respective suction cup and the associated push button, which pushes the push button away from the housing element, and the respective suction cup and the associated push button are located on opposite sides of the housing element and are connected through it, in particular by a screw.

[0025] Preferably, an inserted ring made of elastic material is present on the underside of the housing element, by means of which the lower surface of the housing element rests against the smooth surface.

[0026] The invention is illustrated by means of drawings: Fig. 1: Shows a particularly preferred embodiment of a device for reproducing structure-borne sound.

[0027] Fig. 2: shows a particularly preferred embodiment of a device for reproducing structure-borne sound in sectional view.

[0028] Fig. 3: shows a particularly preferred embodiment of a device for reproducing structure-borne sound in exploded view.

[0029] Fig. 4: shows a part of a device for reproducing structure-borne sound in an exploded view.

[0030] Fig. 5: shows optional accessories of a device for reproducing structure-borne sound.

[0031] Fig. 6: shows an improved suction cup holder for a device for reproducing structure-borne sound.

[0032] Fig. 7: shows a section through a suction cup in the unactivated position.

[0033] Fig. 8: shows a section through a suction cup in the actuated position.

[0034] Fig. 9: Shows a spherical device for reproducing structure-borne sound.

[0035] Figure 1 illustrates a device 1 for reproducing structure-borne sound, which is in the shape of an egg. The egg has a flat base through which it transmits the structure-borne sound to the surface below. The housing of the device 1 has at least two sections made of different materials. At least one first section is made of metal, and at least one second section consists of a material that is permeable to electromagnetic signals. The material of the second section is preferably a plastic. Preferably, there are two first sections, between which the second section is enclosed. The first section is preferably formed by an upper housing part 2 and a lower housing part 3. The second section is preferably formed by a middle housing part 4.

[0036] The first two areas preferentially form the tip and base of the egg, while the second area runs in a band-like shape around the circumference of the egg.

[0037] In the first two areas, the egg's casing is thick-walled or solid in order to achieve a high mass of the device 1 in a small size.

[0038] The base of the device 1 is preferably formed by a removable stand 5. The stand 5 is preferably screwed to the housing of the device 1. In one embodiment, the stand 5 may have a rubberized surface or a rubber insert for transmitting vibrations to hard surfaces.

[0039] In one version, the base 5 can have a smooth surface to facilitate the sliding of the device 1 on a surface. By screwing on such a base 5 designed as a glider, the device 1 can be moved across a person's skin to transfer the body's power to the person.

[0040] Preferably, different bases 5 are provided, which can be combined with the device 1. Based on the geometric designation of a sphere, the device 1 preferably comprises an upper egg-shaped segment made of metal, a first egg-shaped layer made of plastic, and a second egg-shaped layer made of metal. The base can be in the form of a third egg-shaped layer. The lower egg-shaped segment is omitted to provide a flat base. The first egg-shaped layer made of plastic is preferably formed by the middle housing part 2 and preferably contains the electronics of the device 1. The upper egg-shaped segment and / or the second egg-shaped layer can each have a cavity inside on the side facing the second egg-shaped layer. The electronics of the device are located at least in the interior of the first egg-shaped layer. A structure-borne sound transducer is fixedly connected to or integrated into the body of the second egg-shaped layer.

[0041] Preferably, the second egg layer is formed by the lower housing part 3 and a structure-borne sound transmitter 9, which is fixed to the lower housing part 3, in particular screwed on.

[0042] Preferably, the upper egg segment is formed from the upper shell part 2. Preferably, at least the upper half of the upper shell part 2 is made of solid material.

[0043] The device 1 preferably includes a display 7. The display 7 is preferably located in the second area, in particular in the middle housing part 4.

[0044] The device 1 preferably comprises at least two input areas 6 for controlling playback by the device 1. Preferably, the input areas 6 are provided as recesses in the surface of the housing, particularly in the second area in the form of the middle housing part 4. Preferably, sensors are provided on the input areas 6 which detect a touch of the housing or even the approach of a finger through the housing.

[0045] The device 1 comprises internally a rechargeable energy storage device 8, a data storage device, and a wireless data interface. The device 1 includes a charging interface for recharging the energy storage device 8, specifically in the form of a socket for connecting a charging cable. The socket is preferably waterproof.

[0046] The housing parts 2, 3, 4 of the device 1 are preferably screwed together, with seals being provided between the housing parts 2, 3, 4.

[0047] Figure 2 shows a section through a particularly preferred variant of the device 1, the externally visible features of which are designed and described in relation to Figure 1. Figures 3 and 4 show the device 1 of Figure 2 in exploded view to separate the components for easier understanding of Figure 2. In Figure 3, the upper egg segment, the first egg layer, and the second egg layer are each shown in the assembled state of their components, with the base 5 as an additional screw-on element. Figure 4 shows the components of the second egg layer in exploded view.

[0048] The upper egg segment is formed by the upper housing part 2. The upper housing part 2 has a cavity on its lower side, the inner wall of which is threaded. A battery protection layer, for example made of self-adhesive neoprene, may be present at the bottom of the cavity or on the top of the energy storage device 8. The first egg layer comprises the middle housing part 4, the energy storage device 8, and the device's electronics. A battery protection layer, for example made of self-adhesive neoprene, may be present between the energy storage device 8 and the middle housing part 4. The device's electronics are preferably located, at least partially, on a circuit board that is attached to the middle housing part 4. The sensors, the display element, and the charging socket may be attached to the circuit board or to the middle housing part 4. Preferably, the energy storage device 8 and the electronics are located on opposite sides of the middle housing part 4.The central housing part 4 comprises an outer section, which forms the second area of ​​the surface of the device 1, and an inner disc-shaped section. The disc-shaped section has at least one screw hole for an inner screw 10. The inner screw 10 fastens the central housing part 4 to the second egg layer, in particular to the structure-borne sound transducer 9.

[0049] The middle housing part 4 has an external thread on its upper, outer area, with which it can be screwed to the upper housing part 2. A seal 16 is located between the upper housing part 2 and the middle housing part 4.

[0050] The second egg-shaped layer preferably comprises the lower housing part 3, the structure-borne sound transducer 9, a mounting flange 11, and a diaphragm 13. Furthermore, the second egg-shaped layer can have an outer screw 12, an inner compression ring 14, and an outer compression ring 15 for the diaphragm 13. A cover 19, for example in the form of a self-adhesive label, can also be present.

[0051] The lower housing part 3 is preferably designed in a sleeve-like shape, i.e., with an inner cavity open on both sides, which is enclosed circumferentially by the lower housing part 3. On the upper side, facing the middle housing part 4, the inner wall of the lower housing part 3 preferably has an internal thread into which the structure-borne sound transducer 9 can be screwed with an external thread. At the lower end of the cavity, the lower housing part 3 includes at least a tapered section, which forms a stop on the inside of the lower housing part 3. On the upper end face, the lower housing part 3 may have a circumferential recessed groove into which an annular rib of the middle housing part 4 projects. A seal 17 is provided between the lower housing part 3 and the middle housing part 4.

[0052] The structure-borne sound transducer 9 has a threaded bore on its lower side, by means of which the mounting flange 11 can be attached to the structure-borne sound transducer 9. Preferably, this is done by means of the outer screw 12, which passes through a bore in the mounting flange 11. Less preferably, the mounting flange 11 itself could have a threaded bolt. Another option would be that the structure-borne sound transducer 9 is provided with a through-hole, with a screw running from the middle housing part 4 to the mounting flange 11 or vice versa. The diaphragm 13 is clamped externally between the lower housing part 3 and the structure-borne sound transducer 9 and internally between the mounting flange 11 and the structure-borne sound transducer 9.

[0053] Optionally, an outer compression ring 15 can be provided between the diaphragm and the structure-borne sound transducer 9, in particular in the form of an annular disc. Optionally, an inner compression ring 14 can be provided between the diaphragm 13 and the structure-borne sound transducer 9, in particular in the form of an annular disc or sleeve.

[0054] The head of the outer screw 12 is preferably countersunk in the mounting flange 11. The cover 19, for example in the form of a self-adhesive label, can be attached to the mounting flange 11 to cover the head of the outer screw 12 and thus make it inaccessible.

[0055] The mounting flange 11 has an inner cylindrical section onto which the diaphragm and the inner compression ring 14 are slid. The inner cylindrical section may have a centering projection that extends into a recess of the structure-borne sound transducer 9. The centering projection may be eccentric or have a shape other than circular, for example square, in order to connect the mounting flange 11 and the structure-borne sound transducer 9 in a rotationally fixed manner.

[0056] A wider, disc-shaped section of the mounting flange 11 connects to the inner cylindrical section at the bottom. Preferably, the outer diameter of this wider, disc-shaped section is smaller than the inner diameter of the lower opening of the cavity in the lower housing part 3. In other words, an annular gap exists between the mounting flange 11 and the lower housing part 3. The diaphragm 13 is connected to the environment through this annular gap. The diaphragm 13 seals the interior of the housing from the environment.

[0057] The mounting flange 11 and the lower housing part 3 can have circumferential ribs which are pressed into the diaphragm 13 to improve the sealing effect. The diaphragm 13 can have a curved shape.

[0058] The mounting flange 11 has an outer cylindrical section whose diameter is smaller than that of the disc-shaped central section. The outer cylindrical section has an external thread. The base 5 or other accessories can be screwed onto the external thread of the mounting flange 11. The disc-shaped central section forms a stop for the base 5 or other accessories.

[0059] Figures 1-3 show a first variant of a base 5, which has an inserted ring 18 made of elastic material that protrudes slightly beyond the smooth underside of the base 5. The base 5 is ring-shaped, so that the mounting flange 11 and the cover 19 remain visible from below.

[0060] Figures 5 and 6 show further optional accessories which can be combined with the device 1 instead of the stand 5. All these accessories have an area with an internal thread so that they can be screwed onto the external thread of the mounting flange 11.

[0061] Figure 5 shows three different accessories 20, 21, 22, each in three views. Each accessory 20, 21, 22 is disc-shaped, preferably with a sufficient outer diameter to continue the egg shape of the device 1. Due to the small thickness of the discs, they can be frustoconical, approximating an optionally possible egg-layer shape. On the side facing the device 1, the accessory 20, 21, 22 has a recess in which the internal thread is located.

[0062] Accessory 20 is a wall mounting element. This element has at least one opening, preferably at least two openings, through which screws can be screwed into a wall or other surface of an object. The wall mounting element preferably remains permanently attached to the surface, and the device 1 can be screwed to the wall mounting element as needed. The openings may have chamfers for countersinking screw heads.

[0063] Accessory 21 is a sliding element. This preferably comprises a closed disc with a smooth underside, allowing it to move easily over a surface with which it is in contact for transmitting power to the body shaft. In one embodiment, the sliding element has a textured underside. The texture of the underside can be produced, in particular, by milling or turning.

[0064] Accessory 22 is a point massage element. This element includes a point massage pin 23. Preferably, the point massage pin 23 is screwed to the point massage element and can be replaced by other point massage pins 24, 25 with differently sized tips or heads.

[0065] The accessories 21-25 can be made of metal, in particular stainless steel. The housing parts 2, 3, 11 and the stand 5 are preferably also made of metal, in particular stainless steel.

[0066] Although the metal version offers advantages, this should not be interpreted as a limitation. One or more of the aforementioned parts 21-25, 2, 3, 11 and 5 can also be made of another material, for example, plastic.

[0067] Figure 6 shows an improved suction cup mount, preferably for use with device 1. The suction cup mount serves to attach device 1 to a smooth surface, in particular a glass pane.

[0068] The suction cup holder comprises a housing element 26, which can be screwed onto the device 1, in particular onto the mounting flange 11, if the device 1 is designed according to Fig. 2. Preferably, the housing element 26 has a through-hole with an internal thread. The housing element 26 includes three receptacles for suction cups 29. The suction cups 29 are preferably located in recesses of the housing element 26. The suction cups 29 are preferably provided with push buttons 27. A spring 28 is located between each suction cup 29 and the associated push button 27, which pushes the push button away from the housing element 26. The respective suction cup 29 and the associated push button 27 are located on opposite sides of the housing element 26 and are connected through it, in particular by a screw 30. An inserted ring 31 made of elastic material can be present on the underside of the housing element 26 (as with the stand 5).

[0069] Figure 7 shows a suction cup 29 in its unactuated state. The suction cup 29 rests against the inside of the recess in the housing element 26, and the push button 27 is pressed against the housing element 26. When the push button 27 is pressed, the suction cup 29 conforms to the surface, as shown in Figure 8. The inner section of the suction cup 29 is lifted from the bottom of the recess, and the cylindrical surface of the push button 27 extends further into an annular recess in the housing element 26. In the pressed state, the outer edge of the suction cup 29 and the inserted ring 31 rest against the surface. The suction cup 29 may have a protruding tab to facilitate release. The housing element 26 may have a recess in the area of ​​the tab. Depending on the arrangement of the suction cups 29, the housing element 26 may have a triangular base.The device 1 can be partially recessed into a recess in the housing element 26 when the latter is screwed in place. The through-hole with internal thread is located at the bottom of the recess. The housing element 26 is preferably an injection-molded part, particularly made of plastic. The pushbuttons 27 are also made of plastic. The housing element 26 can include guide sleeves for the springs 28. The screw heads can be partially enclosed by the flexible material of the suction cups 29. The pushbuttons 27 can have a thread for screwing in the screws. Alternatively, self-tapping screws can be screwed into openings in the pushbuttons 27. A pin of the pushbutton 27, into which the screw is screwed, can project into or through the opening in the guide sleeve.

[0070] Finally, Fig. 9 illustrates a device 1 for reproducing structure-borne sound, which is in the form of a sphere, although an egg-shaped device 1 is preferred. The sphere has a flat base through which the device 1 transmits the structure-borne sound to the surface.

[0071] The upper housing part 2 forms an upper segment of the sphere, the middle housing part 4 forms a first layer of the sphere, and the lower housing part 3 forms a second layer of the sphere. A base 5 can form a third layer of the sphere. The lower segment of the sphere is omitted to create a flat base. The construction of the spherical device 1 corresponds to the construction of the egg-shaped device, so the embodiments described for Figures 1 to 8 also apply to a spherical device 1.

Claims

Patent claims 1. Device (1) for reproducing structure-borne sound, comprising an upper housing part (2), a lower housing part (3) and a middle housing part (4), which are detachably attached to one another and each form a part of the outer surface of the device (1), characterized in that the upper housing part (2) forms an upper segment of a sphere or an egg, the middle housing part (4) forms a first layer of the sphere or egg and the lower housing part (3) forms a second layer of the sphere or egg, wherein the electronics of the device (1) are located in the first layer and a structure-borne sound transducer (9) of the device (1) is attached in a cavity in the lower housing part (3).

2. Device (1) according to claim 1, characterized in that the upper housing part (2) and the lower housing part (3) are made of metal and the middle housing part (4) is made of a material that is penetrable by electromagnetic signals, in particular plastic.

3. Device (1) according to claim 1 or 2, characterized in that the upper housing part (2) has a cavity on its side facing the middle housing part (4), the inner wall of which is provided with a thread and the middle housing part (4) has a corresponding external thread.

4. Device (1) according to one of claims 1 to 3, characterized in that the middle housing part (4) comprises an outer section forming the surface of the first layer of the sphere or egg and an inner disc-shaped section, wherein an energy storage device (8) is located on one side of the disc-shaped section and a circuit board for the electronics of the device (1) is located on the other side of the disc-shaped section.

5. Device (1) according to claims 3 and 4, characterized in that the energy storage device (8) is located in a cavity of the middle housing part (4) and projects into the cavity of the upper housing part (2).

6. Device (1) according to one of claims 1 to 5, characterized in that the structure-borne sound transducer (9) of the device is screwed into the lower housing part (3) and the middle housing part (4) is attached to the structure-borne sound transducer (9), in particular screwed on.

7. Device (1) according to one of claims 1 to 6, characterized in that the lower housing part (3) has a circumferential recessed groove on the upper end face into which an annular web of the middle housing part (4) projects.

8. Device (1) according to one of claims 1 to 7, characterized in that the cavity of the lower housing part (3) is open on both sides and the device (1) comprises a mounting flange (11) and a diaphragm (13), wherein the mounting flange (11) is attached to the structure-borne sound transducer (9) and protrudes from the opening of the lower housing part (3), wherein there is a gap between the lower housing part (3) and the mounting flange (11), which gap is sealed towards the interior of the housing by the diaphragm (13).

9. Device (1) according to claim 8, characterized in that the membrane (13) is annular and is pressed on its inner area between the mounting flange (11) and the structure-borne sound transducer (9), optionally with an interposition of an inner compression ring (14), and on its outer side between the lower housing part (3) and the structure-borne sound transducer (9), optionally with an interposition of an outer compression ring (15).

10. Device (1) according to claim 8 or 9, characterized in that the mounting flange (11) is screwed to the structure-borne sound transducer (9) by means of an outer screw (12) which passes through a bore of the mounting flange (11), wherein the mounting flange (11) and the structure-borne sound transducer (9) are connected in a rotationally fixed manner via a centering extension.

11. Device (1) according to one of claims 1 to 10, characterized in that a seal (16) is provided between the upper housing part (2) and the middle housing part (4), and a seal (17) is provided between the lower housing part (3) and the middle housing part (4), and a waterproof charging socket is provided on the middle housing part (4).

12. Device (1) according to one of claims 1 to 11, characterized in that it comprises a data storage device and a wireless data interface, which are located in the middle housing part (4), and in the middle housing part (4) a display (7) is located behind a transparent section of the middle housing part (4), and sensors are located in the middle housing part (4) which detect a touch or approach of a finger on the outside of the middle housing part. (4) detect at least two input areas (6).

13. Device (1) according to one of claims 1 to 12, characterized in that it has a stand (5) comprises, which forms a third layer of the sphere or egg.

14. Device (1) according to claim 13 in combination with claim 8 or 9, characterized in that the stand (5) is attached to the mounting flange (11), in particular screwed on.

15. Device (1) according to one of claims 1 to 14, characterized in that it comprises several different accessories which can be selectively attached to the device (1) and which are selected from at least two accessories from the group: stand (5), sliding element, point massage element, wall mounting element, suction cup holder.

16. Device (1) according to claim 15, characterized in that each of the different accessories has a disc-shaped area, on the side of which facing the device (1) there is a recess or an opening in which recess or opening there is an internal thread with which the accessory can be screwed onto the device (1).

17. Device (1) according to claim 16, characterized in that an accessory (22) is a point massage element which has a point massage pin (23) which is screwed into the disc-shaped area of ​​the accessory (22) and is interchangeable by other point massage pins (24, 25) with different sized tips or heads.

18. Suction cup mount for attaching a device (1) for reproducing structure-borne sound to a smooth surface, characterized in that it comprises a housing element (26) which can be screwed onto the device (1), in particular onto a mounting flange (11) of the device (1), wherein the housing element (26) comprises three receptacles for suction cups (29), wherein in each receptacle a suction cup (29) is located in a recess of the housing element (26), wherein the lower surface of the device (1) and / or the housing element (26) rests against the smooth surface when the suction cups (29) are pressed against the smooth surface.

19. Suction cup holder according to claim 18, characterized in that the suction cups (29) are provided with push buttons (27), wherein a spring (28) is located between the respective suction cup (29) and the associated push button (27), which pushes the push button away from the housing element (26), and the respective suction cup (29) and the associated push button (27) are located on opposite sides of the housing element (26) and are connected through it, in particular by a screw (30).

20. Suction cup holder according to claim 18 or 19, characterized in that an inserted ring (31) made of elastic material is provided on the underside of the housing element (26), by means of which the lower surface of the housing element (26) rests against the smooth surface.

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