WO2025008410A1 - Device with water-operated vibration function, in particular shower head with water-operated vibration function - Google Patents

Abstract

The present disclosure relates to an apparatus, in particular a shower head (100), with a water-operated vibration function for massage purposes and/or for sexual stimulation. The shower head (100) preferably comprises a hollow elongate main body (1), a water inlet (2) arranged on one side of the main body (1), one or more water outlets (1a) arranged on another side of the main body (1), a vibration element (8) arranged within the main body (1) between the water inlet (2) and the one or more water outlets (1a), and a switching mechanism (11) designed to switch between a first state, in which the vibration element (8) is movably released in at least part of the main body (1), and a second state, in which a position of the vibration element (8) in the main body (1) is fixed.

Description

DEVICE WITH WATER-OPERATED VIBRATION FUNCTION, IN PARTICULAR SHOWER HEAD WITH WATER-OPERATED VIBRATION FUNCTION

Description

The present disclosure relates to a device with a vibration function for massage purposes and/or for sexual stimulation, in particular a shower head with a vibration function for massage purposes and/or for sexual stimulation. The present disclosure particularly relates to a device with a water-powered vibration function for massage purposes and/or for sexual stimulation, in particular a shower head with a water-powered vibration function for massage purposes and/or for sexual stimulation.

background

A generic device with a water-powered vibration function is known, for example, from the patent specification AT 51 37 17 A1. In AT 51 37 17 A1, the device has an elongated hollow body and a water inlet and one or more water outlets (e.g. shower nozzles) on opposite sides of the elongated hollow body. A vibration element is provided inside the elongated hollow body. In a vibration position, the vibration element can move within a cavity arranged between the water inlet and the water outlets within the elongated hollow body, with water flowing from the water inlet around the vibration element to the water outlets and thereby driving a water-powered vibration movement of the vibration element. In examples of AT 51 37 17 A1, the device is designed in a shower head. However, the vibration operation of the device according to AT 51 37 17 Al can only be switched off by interrupting the water supply.

WO 99/22875 A1 relates to a shower pulsator with a water-powered vibrating ball. Similar to AT 51 37 17 A1, the vibration operation of the device according to WO 99/22875 A1 can only be switched off by interrupting the water supply.

KR 2013/0009078 A relates to a vibrating shower device with a massage function. The vibrating shower device according to KR 2013/0009078 A has a vibrating element that can move within a ring section inside the shower device. The water coming from the water inlet moves the vibrating element around the ring section. However, even if the water flow to the vibrating element is restricted, the vibrating element can still move freely in the ring section, which leads to a disadvantageous user experience. In addition, the mechanism according to KR 2013/0009078 A is very complicated because a switch mechanism is designed to redirect the water flow between two paths depending on a switch position.

US 5,467,927 A relates to a shower head with a selectively usable vibrating and pulsating element. The mechanism according to US 5,467,927 A is very complicated, since a switch mechanism is provided to redirect the water flow between two paths depending on a switch position. The vibration function is generated by a rotating turbine with an eccentric weight inside the shower head.

US 2011/266363 Al concerns a shower head with a water-powered vibration function. The mechanism of US 2011/266363 Al is quite complicated, since the vibration function is generated by a rotating turbine that drives an eccentric wheel inside the shower head.

US 4,209,132 A relates to a shower spray head with a water-powered vibration function based on a rotating turbine that drives an eccentric element inside the shower spray head.

In view of the above-mentioned prior art, it is an object of the present disclosure to provide an improved device providing a water-powered vibration function, in particular with a less complex vibration mechanism and/or an improved or more convenient user handling.

In particular, starting from the closest prior art of AT 51 37 17 A1, it is an object of the present disclosure to preferably provide an improved device which provides a water-operated vibration function, in which the vibration function can be conveniently switched on, in particular can be switched off or deactivated independently of the water flow, in particular in which the vibration function can be conveniently switched on and off without interrupting the water flow during shower operation.

Summary

With regard to one or more of the above-mentioned objects, a device with a vibration function, in particular a water-operated vibration function, according to independent claim 1 and a shower head comprising such a device with a vibration function are proposed. Dependent claims relate to exemplary preferred embodiments.

According to an exemplary aspect of the present disclosure, a device with a water-powered vibration function is proposed, in particular a shower head with a water-powered vibration function, a device included in a shower head with water-powered vibration function or a device integrated into a shower head with a water-powered vibration function.

In exemplary preferred embodiments, the device may comprise a hollow base body which, in some embodiments, may extend in a longitudinal direction, preferably in a straight line or bent or curved in the longitudinal direction. For example, the device may comprise an elongated (e.g. straight or curved or bent) hollow base body.

In exemplary preferred embodiments, the device can comprise a water inlet, which can particularly preferably be arranged on one side of the hollow longitudinal base body, and/or one or more water outlets, which can particularly preferably be arranged on a side of the base body facing away from the water inlet.

In exemplary preferred embodiments, the device can comprise a vibration element, which can preferably be arranged within the base body, for example preferably between the water inlet and the one or more water outlets. In this case, the vibration element is particularly preferably arranged between the water inlet and the one or more water outlets with respect to the path of the water through the base body and can also be arranged spatially between the water inlet and the one or more water outlets in further exemplary embodiments.

In some embodiments, a preferably elongated, preferably optionally cylindrical housing body (base body) can therefore be provided, with a fluid inlet section (water inlet) in which a fluid connection can be arranged to introduce a fluid, preferably water, into the housing body, and a fluid outlet section (water outlet) in which at least one outlet opening is provided to discharge the fluid from the housing body again, and a vibration element movably arranged in the housing body, around which the fluid flows in a vibration position in the first state and can therefore be moved, preferably rotated. The forces transmitted to the housing body due to the movement of the vibration element cause a vibration of the device or the housing body. According to a particularly preferred exemplary embodiment, it can be provided that the vibration element in the vibration position contacts the housing body directly or indirectly due to its movement, for example via a component arranged between the vibration element and the housing body.

When the fluid, preferably water, flows through the housing body, the fluid can flow around the vibration element in the vibration position, resulting in a high-frequency, repeated contact between the vibration element and the housing body, or a component arranged between them, which contact moves the housing body into Vibration is set in motion. The frequency with which the vibration element contacts the housing body can be influenced by the flow speed of the fluid or the pressure of the fluid in the housing body, as well as by the ratio of the size of the vibration element to the housing body. Compared to the vibration of the housing body which is generated solely by movement of the vibration element in the vibration position, without contact between the vibration element and the housing body, the vibration in the case of the described direct or indirect contact between the housing body and the vibration element is significantly more intense and has a higher amplitude. In order to enable the device to be as compact as possible, it can be provided that the fluid inlet section is arranged in a first end region of the housing body and the fluid outlet cross-section in a second end region opposite the first end region.

In exemplary preferred embodiments, the device can comprise a switching mechanism, in particular a mechanical switching mechanism, which can preferably be configured, for example, to switch between a first state in which the vibration element can be movably released in at least a part of the base body and a second state in which a position of the vibration element can be held in the base body.

Preferably, the vibration element can be flowed around by introduced fluid or water in both states, wherein in the second state the vibration function is preferably switched off, since the position of the vibration element is mechanically held in the second state, even if the vibration element is flowed around by introduced fluid or water.

The freedom of movement of the vibration element in the first state can preferably be given in three spatial directions, so that the vibration element in the first state is preferably unattached within the structurally predetermined spatial limits. This differs in particular from solutions in which the vibration is generated by rotating bodies (e.g. turbines) with imbalance, since these are always attached or remain attached to the axis of rotation.

In exemplary preferred embodiments, the switching mechanism can be configured to switch from the first state to the second state, in particular to switch mechanically from the first state to the second state. In exemplary preferred embodiments, the switching mechanism can be configured to switch from the second state to the first state, in particular to switch mechanically from the second state to the first state.

In exemplary preferred embodiments, the switching mechanism can be configured to switch between the first state and the second state, wherein the switching comprises a rotary movement, including a pure rotary movement or preferably a lifting rotary movement, of a movable element of the switching mechanism, particularly preferably a groove-guided rotary movement. In exemplary preferred embodiments, the water-powered vibration function of the device may be turned on when the switching mechanism is in the first state. In exemplary preferred embodiments, the vibration function of the device may be turned off when the switching mechanism is in the second state.

In exemplary preferred embodiments, the vibration element can be configured to perform a water-driven vibration movement in the first state of the switching mechanism, particularly preferably when water flows from the water inlet to the one or more water outlets, wherein the water preferably flows around the vibration element between the water inlet and the one or more water outlets.

In exemplary preferred embodiments, the position of the vibration element can be (mechanically) fixed when the switching mechanism is in the second state, particularly preferably while the water flows around the vibration element between the water inlet and the one or more water outlets, particularly preferably when water flows from the water inlet to the one or more water outlets.

In exemplary preferred embodiments, the switching mechanism can be designed mechanically. In exemplary preferred embodiments, the switching mechanism can be designed for mechanical switching between the first and second states, particularly preferably without electromagnetic actuators.

In exemplary preferred embodiments, the switching mechanism can comprise a mechanical bistable mechanism. In exemplary preferred embodiments, the switching mechanism can provide two mechanically stable positions, particularly preferably two mechanically stable positions that can each be maintained without the action of external forces. In exemplary preferred embodiments, a first position of the two mechanically stable positions can correspond to the first state of the switching mechanism. In exemplary preferred embodiments, a second position of the two mechanically stable positions can correspond to the second state of the switching mechanism.

In exemplary preferred embodiments, the vibration element in the second state can be held (mechanically) in the longitudinal direction of the base body between a stop section on one side of the vibration element and one or more holding sections on the other side of the vibration element; particularly preferably, the vibration element in the second state can be clamped (mechanically) in the longitudinal direction of the base body between a stop section on one side of the vibration element and one or more holding sections on the other side of the vibration element. In exemplary preferred embodiments, the stop portion on one side of the vibration element and the one or more holding portions on the other side of the vibration element can be spaced further apart in the longitudinal direction in the first state than in the second state.

In exemplary preferred embodiments, the stop section on one side of the vibration element and the one or more holding sections on the other side of the vibration element can be further apart in the longitudinal direction in the first state than in the second state, particularly preferably such that in the first state a limited free mobility of the vibration element in the longitudinal direction between the stop section on one side of the vibration element and the one or more holding sections on the other side of the vibration element is released.

In exemplary preferred embodiments, in the second state of the switching mechanism, the vibrating element can be held fixedly in the longitudinal direction between the stop portion on one side of the vibrating element and the one or more holding portions on the other side of the vibrating element.

In exemplary preferred embodiments, the vibration element in the second state of the switching mechanism can be held fixedly in the longitudinal direction between the stop portion on one side of the vibration element and the one or more holding portions on the other side of the vibration element, in particular such that the axial position of the vibration element is held in the second state of the switching mechanism and/or that the radial position of the vibration element is held in the second state of the switching mechanism.

In exemplary preferred embodiments, the vibration element can be spherical, particularly preferably as a spherical body, which for example comprises metal and/or plastic or consists of metal and/or plastic.

According to some particularly preferred embodiments, the vibration element causing the vibration is a ball, preferably a metal ball. This enables a particularly harmonious vibration due to the fluid/water flowing around the ball. In combination with a cylindrical housing body or housing element in which the vibration element can be arranged, by designing the vibration element as a ball, an annular gap can be formed between the ball and the housing body or housing element, through which the fluid/water flows around the ball and can thus vibrate in the vibration position in the first state.

In exemplary preferred embodiments, the device may comprise a piston which may be arranged within the base body and/or may be adapted to move in the longitudinal direction of the base body, in particular in an axial direction of the base body, for example, if the base body particularly preferably has an interior space having a cylindrical shape.

In exemplary preferred embodiments, the switching mechanism may comprise a movable element (e.g. the protruding piston or a movable element provided in addition to the piston) which may be arranged within the base body and/or may be configured to move in the longitudinal direction of the base body, in particular in an axial direction of the base body, for example when the base body particularly preferably has an interior space having a cylindrical shape.

In exemplary preferred embodiments, the switching mechanism may comprise a movable element (e.g. the protruding piston or a movable element provided in addition to the piston) which may be arranged within the base body and may be configured to move relative to a fixed element of the switching mechanism in the longitudinal direction of the base body, in particular in an axial direction of the base body, for example when the base body particularly preferably has an interior space having a cylindrical shape.

In exemplary preferred embodiments, the switching mechanism can comprise a movable element which can preferably be configured to move in the longitudinal direction of the base body, in particular preferably in an axial direction of the base body, if the base body in particular preferably has an interior space having a cylindrical shape.

In exemplary preferred embodiments, the movable element of the switching mechanism can be configured to move in the longitudinal direction of the base body, particularly preferably between a first stable position, in particular a first stable position relative to a fixed element of the switching mechanism, and a second stable position, in particular a second stable position relative to the fixed element of the switching mechanism.

In exemplary preferred embodiments, the movable element of the switching mechanism may be positioned in the first stable position when the switching mechanism is in the first state and/or the movable element of the switching mechanism may be positioned in the second stable position when the switching mechanism is in the second state.

In exemplary preferred embodiments, the movable element of the

In the first stable position, the switching mechanism may be further drawn towards (less spaced apart) the fixed element of the switching mechanism in the longitudinal direction than in the second stable position. In exemplary preferred embodiments, the movable element of the switching mechanism may be longitudinally further away and/or retracted (spaced further) from the vibrating element in the first stable position than in the second stable position.

In exemplary preferred embodiments, the device may comprise a button element which may be arranged, for example, at one end of the base body, in particular, for example, opposite the side of the water inlet.

In exemplary preferred embodiments, the button element can be configured to switch the switching mechanism back and forth between the first and second states by alternately pressing the button element.

In exemplary preferred embodiments, the switching mechanism can have a groove guide.

In exemplary preferred embodiments, the switching mechanism can have a groove guide, which can preferably be configured to guide a movement of a movable element of the switching mechanism relative to a fixed element of the switching mechanism, in particular from a positioning or position of the first state to a positioning or position of the second state and/or from a positioning or position of the second state to a positioning or position of the first state.

In exemplary preferred embodiments, the switching mechanism may have a groove guide comprising a guide groove and a pin element engaging in the guide groove. For example, the guide groove may be provided on the movable element of the switching mechanism, wherein the pin element may be held on the fixed element of the switching mechanism. Furthermore, conversely, the guide groove may be provided on the fixed element of the switching mechanism, wherein the pin element may be held on the movable element of the switching mechanism.

In exemplary preferred embodiments, a first end position of the pin element in the guide groove may correspond to the first state and/or a second end position of the pin element in the guide groove may correspond to the second state.

In exemplary preferred embodiments, the switching mechanism can be configured such that the groove-guided movement of the movable element of the switching mechanism relative to the fixed element of the switching mechanism switches between the first and the second state, particularly preferably e.g. by means of a movement comprising a rotation, such as a rotary movement and/or a lifting rotary movement.

In exemplary preferred embodiments, the groove-guided movement of the movable

element of the switching mechanism relative to the fixed element of the switching mechanism Rotational movement of the movable element of the switching mechanism relative to the fixed element of the switching mechanism and/or a translational movement of the movable element of the switching mechanism relative to the fixed element of the switching mechanism in the longitudinal direction.

According to further exemplary preferred aspects, a shower head is proposed which comprises a device according to at least one or more or all of the above exemplary aspects.

Although certain exemplary aspects have been described above, it is to be understood that these aspects serve only to illustrate the present disclosure by way of example and are not to be understood in a restrictive manner. Further aspects and embodiments as well as advantages and more specific exemplary embodiments of the exemplary aspects and features described above can also be found in the following descriptions and explanations of the attached figures, which are also not to be understood as restrictive in any way.

Short description of the drawings

Fig. 1A shows an example of a perspective view of a shower head according to some embodiments,

Fig. 1B shows an example of a side view of the shower head according to Fig. 1A,

Fig. 2 shows an example of a longitudinal cross-section of a shower head according to an embodiment in a first state (vibration function OFF),

Fig. 3 shows an example of a longitudinal cross-section of the shower head according to an embodiment in a second state (vibration function ON),

Fig. 4A shows an exemplary partial sectional view of an exemplary switching mechanism of the shower head according to an embodiment in the first state according to Fig. 2,

Fig. 4B shows an exemplary partial sectional view of the switching mechanism of the shower head according to an embodiment in the second state according to Fig. 3, and

Fig. 5 shows an exemplary plan view of a movable element of the switching mechanism of the shower head according to an embodiment. Detailed description of the drawings and exemplary embodiments

In the following, some examples or embodiments of the present disclosure are described in detail with reference to the attached figures. Identical or similar elements in the figures can be designated with the same reference numerals, but sometimes also with different reference numerals. It should be emphasized that the subject matter of the present disclosure is in no way limited or restricted to the embodiments described below and their design features, but also includes modifications of the embodiments, in particular those that are covered by modifications of the features of the examples described or by combining one or more of the features of the examples described within the scope of protection of the independent claims.

Fig. 1A shows an exemplary illustrative perspective view of a shower head 100 (device) according to some embodiments. Fig. 1B shows an exemplary side view of the shower head 100 according to Fig. 1A.

The exemplary shower head 100 (device) comprises, for example, a base body 1. The base body 1 has, for example, a plurality of water outlets la (e.g. shower head nozzles), which are arranged, for example, on at least one side of the base body 1 of the shower head 100 or at one end of the shower head 100, in particular within an area close to or adjacent to a front section of the base body 1 of the shower head 100. For example, a water inlet element 2 is arranged on an opposite side, for example on an end section of the base body 1, which is arranged, for example, in particular on the side of the base body 1 opposite the water outlets la.

The water inlet element 2 can, for example, be designed as a standard water inlet of a shower head. For example, the water inlet element 2 can comprise a threaded portion for attachment to a shower hose (not shown) with a standardized threaded connection interface, such as a standard shower hose connector coupling. For example, the water inlet element 2 can comprise a standard 1/2 inch threaded portion for attaching a shower hose (or shower hose connector).

In preferred exemplary aspects, the water inlet element 2 may comprise metal or be formed from metal, such as aluminum, titanium, steel (eg, corrosion-resistant steel such as stainless steel), etc. In addition, the water inlet element 2 may comprise plastic or be made of plastic. The material of the water inlet element 2 is preferably corrosion-resistant. For example only, the base body 1 is provided as an elongated hollow body which, for example, has a substantially cylindrical shape. In further embodiments, the base body 1 can also have a curved shape and/or be wider on the side of the water outlets 1a than on the side of the water inlet element 2.

In the following, according to some embodiments, an exemplary shower head is equipped with an on/off switchable, water-powered vibration function, wherein a switching mechanism is provided to switch back and forth between two mechanical states in order to be able to switch the vibration function on and off independently of the water supply.

In the following, an exemplary mechanical switching mechanism is proposed by way of example according to some embodiments, which enables two stable mechanical states (bistable mechanism). In particular, an exemplary mechanical switching mechanism is proposed which can assume two stable positions (mechanical positions) and in particular can maintain the two stable positions (mechanical positions) even without the influence of external forces.

Fig. 2 shows, by way of example, a longitudinal cross section of a shower head 100 (device) according to a second embodiment in a first state, namely, by way of example, in a state with the vibration function switched off.

As shown by way of example in Fig. 2, a water inlet section 2 is arranged at a rear end section (left side) of the elongated hollow base body 1, which has, for example, a threaded section 2c. The water inlet section 2 can be designed, for example, as a standard water inlet of a shower head.

For example, the water inlet member 2 includes the threaded portion 2c for attachment to a shower hose (not shown) with a standardized threaded connection interface, such as a standard shower hose connector coupling. For example, the water inlet portion 2 may include a standard 1/2 inch threaded portion for attaching a shower hose (or shower hose connector).

The water inlet section 2 is formed, for example, on an elongated (for example axially arranged) piston 11b. In embodiments according to Fig. 5, the piston 11b forms, for example, the movable element of the switching mechanism 11 for switching the vibration function on and off.

In the example according to Fig. 2, the water inlet section 2 is formed on the piston 11b, but in some other embodiments it can also be provided analogously to the above embodiment as a separate water inlet element which is attached to the piston 11b. The piston 11b, for example together with the water inlet section 2, comprises, according to Fig. 2, an elongated (for example axially arranged) water inlet channel 2a for the water supply. The water inlet channel 2a can be provided, for example, as an axial borehole.

Supplied water can penetrate into the inner cavity 1b of the elongated hollow base body 1, for example through the longitudinally extending water inlet channel 2a, which extends, for example, through the entire piston 11b. Such a water supply can be provided, for example, by tap water under line pressure from a shower hose (not shown) connected to the water inlet section 2.

In preferred exemplary aspects, the piston 11b and/or the water inlet portion 2 may comprise or be made of metal, such as aluminum, titanium, steel (e.g., corrosion-resistant steel such as stainless steel), etc. Piston 11b and/or the water inlet portion 2 may also comprise or be made of plastic. The material of the piston 11b and/or the water inlet portion 2 is preferably corrosion-resistant.

As further shown by way of example in Fig. 2, a bushing element 64 is arranged on the front end portion (right side) of the elongated hollow base body 1, for example, which seals the front portion (right side) of the elongated hollow base body 1 by way of example of the bushing element 64.

In preferred exemplary aspects, the bushing member 64 may comprise or be made of metal, such as aluminum, titanium, steel (e.g., corrosion-resistant steel such as stainless steel), etc. The bushing member 64 may also comprise or be made of plastic. The material of the bushing member 64 is preferably corrosion-resistant.

By way of example, a closing element 30 is further arranged or attached to a front end of the socket element 64, and the closing element 30 closes, by way of example, a front opening of the elongated hollow base body 1 (see also Fig. 1A).

In preferred exemplary aspects, the closure member 30 may comprise or be made of metal, such as, for example, aluminum, titanium, steel (e.g., corrosion-resistant steel such as stainless steel), etc. Additionally, the closure member 30 may comprise or be made of plastic. The material of the closure member 30 is preferably corrosion-resistant.

For example, the end element 30 is firmly attached to the front end of the socket element 64. For example, in some embodiments, the end element 30 can be firmly attached to the front end of the socket element 64 by a screw connection, e.g. by screws. In some embodiments, the end element 30 can be attached to the front end of the socket element 64. In some further embodiments, the socket element 64 and the end element 30 can also be formed as a single component.

For example, the rear end (facing away from the end element 30 and/or facing the vibration element 8) of the bushing element 64 comprises a stop section 6a which tapers inwards (for example towards the vibration element 8).

As further shown by way of example in Fig. 2, a further bushing element 11a is arranged on the rear end section (left side) of the elongated hollow base body 1, which seals the rear section (left side) of the elongated hollow base body 1 by way of example using the bushing element 11a. In embodiments according to Fig. 2, the bushing element 11a forms, by way of example, the fixed element of the switching mechanism 11 for switching the vibration function on and off.

In preferred exemplary aspects, the bushing element 11a may comprise or be made of metal, such as aluminum, titanium, steel (e.g., corrosion-resistant steel such as stainless steel), etc. The bushing element 11a may also comprise or be made of plastic. The material of the bushing element 11a is preferably corrosion-resistant.

By way of example, a closing element 15 is further arranged or attached to a rear end of the socket element 11a, and the closing element 15 closes, by way of example, a rear opening of the elongated hollow base body 1.

In preferred exemplary aspects, the closure member 15 may comprise or be made of metal, such as, for example, aluminum, titanium, steel (e.g., corrosion-resistant steel such as stainless steel), etc. Additionally, the closure member 15 may comprise or be made of plastic. The material of the closure member 15 is preferably corrosion-resistant.

For example, the end element 15 is firmly attached to the rear end of the socket element 11a. For example, in some embodiments, the end element 15 can be firmly attached to the front end of the socket element 11a by a screw connection, e.g. by screws. In some embodiments, the end element 15 can be screwed onto the rear end of the socket element 11a. In some other embodiments, the socket element 11a and the end element 15 can also be designed as a single component.

The bushing element 11a holds, for example, the piston 11b, in particular, for example, in such a way that the piston 11b held on the bushing element 11a is displaceable in the longitudinal direction or, for example, axially.

In preferred exemplary aspects, the bushing element 11a may comprise or be made of metal, such as aluminum, titanium, steel (e.g., corrosion-resistant steel), etc. The Bushing element 11a may comprise or be made of plastic. The material of the bushing element 11a is preferably corrosion-resistant.

The piston 11b is, for example, arranged and designed such that it can move in the longitudinal direction (e.g. axially) of the elongated hollow base body 1 (see also Figs. 5 and 6). For example, the bushing element 11a can comprise an axial guide, e.g. a bore, which can, for example, accommodate the piston 11b in a displaceable manner in the longitudinal direction of the elongated hollow base body 1 (axially).

For example, the outer diameter of the piston 11b can be adapted to the inner diameter of the axial guide or bore of the bushing element 11a, so that the piston 11b received in the axial guide or bore of the bushing element 11a is designed to slide in the longitudinal direction (axially).

For example, a pin element 11c is also held on the bushing element 11a, which engages in a guide groove 11d formed on the piston 11b.

For example, a biasing element 70, for example a spring or preferably a metal spring, biases the piston 11b longitudinally (e.g. axially) inwardly (i.e., for example, toward the vibration element 8) with respect to the elongated hollow base body 1 until the pin element 11c comes into contact with a stop portion of the guide groove 11d of the piston 11a, as shown by way of example in Fig. 2.

Between the bushing element 11b and the piston 11a moving in the bushing element 11b, a sealing element 16, such as a sealing ring or O-ring, is provided. Between the bushing element 11b and the base body 1, a sealing element 13b, such as a sealing ring or O-ring, is provided.

By way of example, a hollow housing element 9 is fitted into the elongated hollow base body 1, which is arranged substantially at a central portion of the elongated hollow base body 1. The hollow housing element 9 can have a cylindrical shape, e.g. as a hollow cylindrical element.

On the side facing the switching mechanism 11, the housing element 9 has, for example, a guide section 9a which holds the piston 11a. The piston 11b is, for example, arranged and configured such that it can move in the longitudinal direction (e.g. axially) of the elongated hollow base body 1. For example, the guide section 9a can comprise an axial guide, e.g. a bore, which can, for example, accommodate the piston 11b in a displaceable manner in the longitudinal direction of the elongated hollow base body 1 (axially).

For example, the outer diameter of the piston 11b can be adapted to the inner diameter of the axial guide or bore of the guide section 9a, so that the axial Piston 11b received in the guide or bore of the guide section 9a is designed to slide longitudinally (axially).

The housing element 9 is held in position, for example, by a spacer element 14 which is arranged between the bushing element 11a and the housing element 9. A sealing element 12, such as a sealing ring or O-ring, is provided, for example, between the housing element 9 and the spacer element 14. For example, the spacer element 14 can have a cylindrical shape, e.g. as a hollow cylindrical element.

In preferred exemplary aspects, the hollow housing element 9 and/or the spacer element 14 may comprise metal or be made of metal such as aluminum, titanium, steel (e.g., corrosion-resistant steel such as stainless steel), etc. The housing element 9 and/or the spacer element 14 may comprise or be made of plastic. The material of the housing element 9 and/or the spacer element 14 is preferably corrosion-resistant.

By way of example, analogous to the above embodiments, a spherical vibration element 8 is arranged or provided within the hollow housing element 9. The diameter of the vibration element 8 is preferably somewhat smaller than an inner diameter of the hollow housing element 9, so that a small gap (e.g. a small gap of approximately 3 mm or less, preferably 2 mm or less, particularly preferably 1 mm or less) is provided between the inner walls of the housing element 9 and the vibration element 8, in particular preferably such that water can flow from the water inlet section 2 through the cavity 1b of the elongated hollow base body 1 around the vibration element 8 to the plurality of water outlets 1a on the front section in the longitudinal direction, wherein the water, by way of example, preferably passes through the gap between the inner walls of the hollow housing element 9 and the vibration element 8.

In this case, water outlets la can be provided analogously to the above embodiments (see also Figs. 1A and 1B), which are not shown as examples in Fig. 2, since they can be formed, for example, at the level of the bushing element 64 in the wall of the base body 1 above the sectional plane of Fig. 2.

In preferred exemplary aspects, the vibrating element 8 may comprise metal or be made of metal such as aluminum, titanium, steel (e.g., corrosion-resistant steel such as stainless steel), etc. In addition, the vibrating element 8 may comprise plastic or be made of plastic. The material of the vibrating element 8 is preferably corrosion-resistant.

Furthermore, a switching mechanism 11 is provided within the elongated hollow base body 1. The switching mechanism 11 comprises, for example, a fixed element 11a, here, for example, the socket element 11a, which is, for example, firmly arranged or fixed within the elongated hollow base body 1. The switching mechanism 11 further comprises, for example, a movable element 11b, here for example the piston 11b, which is designed, for example, to move in the longitudinal direction (eg axially) of the elongated hollow base body 1 relative to the fixed element 11a of the switching mechanism 11.

Overall, the switching mechanism 11 according to Fig. 2 comprises, for example, the bushing element 11a (fixed element), the piston 11b (movable element), the pin element 11a held on the bushing element 11a, the guide groove 11d formed on the outside of the piston 11b and an exemplary ring element Ile plugged onto the piston 11a.

The preloading element 70 is arranged, for example, between the ring element Ile and the bushing element 11a. The ring element Ile is restricted in its movement in the longitudinal direction, for example, by means of a safety ring 17 arranged in an annular groove of the piston 11a.

In preferred exemplary aspects, the pin element 11a of the switching mechanism 11 and/or the ring element Ile of the switching mechanism 11 may comprise metal or be made of metal, such as aluminum, titanium, steel (e.g., corrosion-resistant steel such as stainless steel), etc. The pin element 11a of the switching mechanism 11 and/or the ring element Ile of the switching mechanism 11 may comprise plastic or be made of plastic. The material of the pin element 11a of the switching mechanism 11 and/or the ring element Ile of the switching mechanism 11 is preferably corrosion-resistant.

For example, holding sections 10a, 10b and 10c are formed or arranged on the piston 11b on a side facing the vibration element 8 (see also Fig. 8). For example, the holding sections 10a, 10b and 10c are formed on the piston 11b.

In some further embodiments, the holding sections 10a, 10b and 10c can also be formed on a holding element, wherein the holding element can be firmly attached or fastened to the piston 11b of the switching mechanism 11. For example, in some embodiments, the holding element can be firmly attached to one end of the piston 11b of the switching mechanism 11 by a screw connection, e.g., the holding element can be screwed onto one end of the piston 11b of the switching mechanism 11. In preferred exemplary aspects, the holding element can comprise metal or be made of metal, such as aluminum, titanium, steel (e.g., corrosion-resistant steel, such as stainless steel), etc. In addition, the holding element can comprise plastic or be made of plastic. The material of the holding element is preferably corrosion-resistant.

For example, the holding sections 10a, 10b and 10c form an engagement section on the piston 11b for engagement with the vibration element 8. Preferably, the engagement section of the holding sections 10a, 10b and 10c can be in contact with the vibration element 8. to maintain (restrict) its radial position when the holding portions 10a, 10b and 10c are engaged with the vibrating element 8.

In the state according to Fig. 2, the axial position of the vibration element 8 is held, for example, by the vibration element 8 being held between the stop portion 6a of the socket element 64 and the holding portions 10a, 10b and 10c (engagement portion) when the holding portions 10a, 10b and 10c (engagement portion) are in engagement with the vibration element 8. Here, the vibration element 8 can be clamped between the stop portion 6a of the socket element 64 and the holding portions 10a, 10b and 10c when the holding portions 10a, 10b and 10c (engagement portion) are in engagement with the vibration element 8.

In this state according to Fig. 2, the position of the vibration element 8 is fixed, for example, by holding the axial position of the vibration element 8 between the stop portion 6a of the sleeve element 64 and the holding portions 10a, 10b and 10c (engagement portion), in particular when the vibration element 8 is clamped between the stop portion 6a of the sleeve element 64 and the holding portions 10a, 10b and 10c (engagement portion) in the longitudinal direction.

For example, the radial position of the vibration element 8 is fixed by the shape of the engagement section of the holding sections 10a, 10b and 10c (engagement section) adapted to the shape of the vibration element 8 when the holding sections 10a, 10b and 10c (engagement section) engage with the vibration element 8. In this case, the radial position of the vibration element 8 can be fixed, for example, by a three-point contact of the vibration element 8 with the exemplary three holding sections 10a, 10b and 10c (engagement section) in the state according to Fig. 2.

In further embodiments, more than three holding sections can be provided, e.g. four, five, six, seven, eight or more holding sections (together: engagement section). The radial position of the vibration element 8 can be fixed, for example, by a multi-point contact of the vibration element 8 with the exemplary holding sections in the state according to Fig. 2. It is also possible to provide only one or two holding sections as an engagement section, the shape of which can be adapted to the shape of the vibration element 8 (e.g. a holding element as an engagement section with a partially spherical receiving shape).

By way of example, in the state according to Fig. 2, the axial and/or radial freedom of movement of the vibration element 8 is fixed, wherein the axial and/or radial position of the vibration element 8 is limited, for example, by the stop section 6a of the bushing element 64 and the holding sections 10a, 10b and 10c (engagement section) when the holding sections 10a, 10b and 10c (engagement section) are in engagement with the vibration element 8.

Nevertheless, in the state according to Fig. 2, for example, water can flow around the vibration element 8 through the gap between the inner walls of the housing element 9 and the vibration element 8 from the water inlet section 2 to the plurality of water outlets la at the front part of the elongated, hollow base body 1, so that the shower head 100 can be used for normal shower operation without vibration (vibration function switched off; state according to Fig. 2).

For example, the switching mechanism 11 is designed as a groove-guided rotary mechanism. For example, the switching mechanism 11 can have a groove guide that can assume two stable positions and, in particular, can maintain the two stable positions without the influence of external forces.

Preferably, the switching mechanism 11 is designed as a groove-guided rotary mechanism which is designed to be switched back and forth between two stable positions by rotating the piston 11b (e.g. the positions according to Figs. 5 and 6).

Accordingly, the switching mechanism 11 can, for example, assume two stable positions (bistable mechanism), as shown in Figs. 5 and 6. The switching mechanism 11 is, for example, designed such that it switches the longitudinal position of the piston 11b in the longitudinal direction (axial) of the switching mechanism 11 between each of the two stable positions by rotating the piston 11b in a groove-guided manner (cf. Figs. 5 and 6).

It should be noted here that it is merely an example that the guide groove 11d is formed on the movable piston 11b of the switching mechanism 11 and the guide pin 11c is held or formed on the fixed bushing element 11a of the switching mechanism 11. Analogously, it is possible to form the guide groove 11d on a fixed element of the switching mechanism and to attach or form the guide pin 11c on a movable element of the switching mechanism 11.

For example, in a first position (extended position), as shown by way of example in Fig. 2, the piston 11b of the switching mechanism 11 is extended in the longitudinal direction (axial direction) of the elongated hollow base body 1 away from the bushing element 11a of the switching mechanism 11 towards the vibration element 8.

Further by way of example, in the second position (retracted position), as shown by way of example in Fig. 6, the piston 11b of the switching mechanism 11 is pulled or retracted toward the sleeve element 11a of the switching mechanism 11 in the longitudinal direction (axial direction) of the hollow base body 1 away from the vibration element 8.

The respective positions according to Figs. 5 and 6 illustrate by way of example the two stable positions of the switching mechanism 11. The transition from one position to the other position can preferably be effected (activated or switched) by rotating the piston 11b of the switching mechanism 11 about the longitudinal axis, wherein the piston 11b carries out a groove-guided rotary movement, in particular, for example, a groove-guided stroke rotary movement. Fig. 3 shows an example of a longitudinal cross section of the shower head 100 according to the second embodiment in a second state, namely, for example, in a state with the vibration function switched on.

Accordingly, if the piston 11a is rotated about the longitudinal axis starting from the state according to Fig. 2, the piston 11a is groove-guided, in particular for example by means of the groove guide of the pin element 11c in the guide groove 11d, and is transferred from the state according to Fig. 2 to the state according to Fig. 3 (mechanically switched).

As a result, the piston 11b of the switching mechanism 11 is pushed, for example, from the first (extended) position according to Fig. 5 in the longitudinal direction (axially) in the direction of the sleeve element 11a of the switching mechanism 11 into the second (retracted) position, which is the second stable position of the (bistable) switching mechanism 11. A purely exemplary design of the guide groove 11d on the piston 11a can be seen in Figs. 4A, 4B and 5.

Fig. 4A shows an exemplary partial sectional view of an exemplary switching mechanism 11 of the shower head 100 according to the second embodiment in the first state according to Fig. 5, and Fig. 4B shows an exemplary partial sectional view of the switching mechanism 11 of the shower head 100 according to the second embodiment in the second state according to Fig. 3. Fig. 5 shows an exemplary plan view of a movable element 11b of the switching mechanism 11 with an exemplary groove section 11d of the shower head 100 according to the second embodiment.

Preferably, the guide groove 11d has a U-shape or a V-shape, wherein the two end positions A and B (see Fig. 5) of the guide groove 11d specify, by way of example, the positions of the piston 11a in the two states according to Figs. 2 and 3, in particular the axial position of the piston 11a in the longitudinal direction.

For example, the end position A of the guide groove lld (which specifies the state according to Fig. 2) is arranged further out in the longitudinal direction (closer to the water inlet 2) than the end position B of the guide groove lld (which specifies the state according to Fig. 3). This makes it possible for the end position A of the guide groove lld (which specifies the state according to Fig. 2) to be further away from the vibration element 5 in the longitudinal direction than the end position B of the guide groove lld (which specifies the state according to Fig. 3).

In the state according to Fig. 3 with the second (retracted) position of the switching mechanism 11, the vibration element 8 is released, for example due to the increased distance between the holding sections 10, 10b and 10c (engagement section) and the stop section 6a of the bushing element 64, and the vibration element 8 can move freely in this state in the housing element 9, for example, in particular in the limited space of the housing element 9 in the longitudinal direction and also transversely to the longitudinal direction, wherein the movement in Longitudinal direction between the holding sections 10, 10b and 10c (engagement section) and the stop section 6a of the bushing element 64 is limited and the movement transverse to the longitudinal direction is limited by the inner wall of the housing element 9.

For example, in the state according to Fig. 3, the water flows from the water inlet portion 2 around or past the vibrating element 8 through the gap between the inner walls of the hollow housing element 9 and the vibrating element 8 to the plurality of water outlets 1a at the front portion of the elongated hollow base body 1.

In the state according to Fig. 3, the vibration element 8 is moved, for example, by the flowing water within the hollow housing element 9 and thereby generates a water-driven vibration in the housing element 9 of the elongated hollow base body 1, which has a vibrating effect on the base body 1 (vibration function switched on; state according to Fig. 3).

As an exemplary technical effect, the intensity, strength and/or frequency of the vibratory movement of the vibrating element 8 within the hollow housing element 9 can be continuously controlled by controlling the water pressure and/or the water flow. In particular, a higher water flow, for example, produces higher frequencies of the vibratory movement of the vibrating element 8 within the hollow housing element 9.

As an example, the water-powered vibration function can be easily and conveniently switched on and off independently of the water flow or while the water flow is running, in particular without electromagnetic mechanisms or drives. In addition, the intensity and/or frequency of the vibration can be continuously and conveniently controlled by controlling the water flow without the need for an electromagnetic mechanism or electromagnetic drive.

In preferred embodiments, the vibration element 8 is designed as a ball element, for example (see, for example, Figs. 2 and 3). When the water flows around the vibration element 8 through the gap between the inner walls of the hollow housing element 9 and the vibration element 8 from the water inlet section 2 to the plurality of water outlets 1a at the front section of the elongated hollow base body 1, the water flow around the spherical vibration element 8 drives a rotation of the vibration element 8 (ball element) and thus generates, for example, an advantageously gentle vibration of the elongated hollow base body 1 (gentle vibration).

If the piston 11a is rotated in the state according to Fig. 3, the pin element 11d is moved in the guide groove 11d from the end position B back to the end position A, in which the piston 11a is moved further inwards in the longitudinal direction (axially) until it contacts the vibration element 8. with the holding sections 10a, 10b and 10c (engagement section) presses again against the stop section 6a of the bushing element 64.

Thus, the piston 11b of the switching mechanism 11 is rotated, for example (for example about the longitudinal axis) in order to (mechanically) switch the stable states of the switching mechanism 11. In this case, for example, the movable element 11b of the switching mechanism 11 also moves from the second (retracted) position of the switching mechanism 11 towards the first (extended) position of the switching mechanism 11, as shown by way of example in Fig. 5.

In this state according to Fig. 2, the vibration element 8 is again held firmly between the holding sections 10a, 10b and 10c (engagement section) and the stop section 6a of the socket element 64 (vibration function switched off) without the water flow being interrupted or an interruption of the water flow being necessary.

In the opposite case, if the guide groove lld were formed on the fixed element of the switching mechanism and the movable element had the pin, for example the end position A of the guide groove lld (which specifies the OFF state) would be arranged further inward in the longitudinal direction than the end position B of the guide groove lld (which specifies the ON state). Thus, in the opposite case, it can be made possible that the end position B of the guide groove lld (which specifies the ON state) is further away from the vibration element 5 in the longitudinal direction than the end position A of the guide groove lld (which specifies the OFF state).

According to the exemplary embodiments described above, a shower head can be designed with a simple, efficient and practical structure that provides a water-operated, switchable vibration function that can be switched on and off easily, conveniently and efficiently, in particular independently of the water supply, without interrupting the water flow and in particular also during the shower process without interrupting the water. In addition, no electromagnetic mechanism is advantageously required and the switching and vibration mechanisms are advantageously low-maintenance or require very little to no maintenance.

In summary, in the exemplary embodiments described above, a shower head can be equipped with a simple, efficient and practical structure that provides a water-powered vibration function that can be switched on and off, which can be switched on and off easily, conveniently and efficiently, in particular independently of the water supply, without interrupting the water flow and in particular also during the shower process without interrupting the water. In addition, no electromagnetic mechanism is advantageously required and the switching and vibration mechanisms are advantageously low-maintenance or require very little to no maintenance. While the elongated hollow body 1 may comprise or be made of plastic in some embodiments, the elongated hollow body 1 may comprise or be made of metal such as aluminum, titanium or steel (e.g. corrosion-resistant stainless steel) in some preferred embodiments. The material of the body 1 is preferably corrosion-resistant. For example, in some preferred embodiments where the elongated hollow body 1 is made of or comprises metal, then the temperature of the material of the elongated hollow body 1 may assume the temperature of the water flowing from the inlet side to the outlet side. Accordingly, the temperature of the elongated hollow body 1 that comes into contact with a human body can be conveniently controlled continuously according to the user's preference by controlling the temperature of the supplied flowing water.

In the above embodiments, the elongated base body 1 was provided with a cylindrical outer shape by way of example. Of course, other shapes are also possible and the elongated base body 1 can in particular be formed in various elongated shapes and can even be provided as a free-form shape (e.g. milled or 3D printed, e.g. according to a 3D model such as a CAD model, etc.). For efficient, simple and cost-effective assembly, the inner cavity of the elongated base body 1 in some preferred embodiments, even with any outer free form, is preferably still essentially a cylindrical hollow interior, regardless of the outer shape. This enables the assembly of the internal mechanisms of the device in a similar manner to the above embodiments with a preferably axial alignment of the internal components, while the external shape of the base body 1 can be freely chosen according to design preferences.

It should be noted that only examples or embodiments of the present disclosure and technical advantages have been described in detail above with reference to the attached figures. However, the present disclosure is in no way limited or restricted to the embodiments described above and their design features or their described combinations, but also includes modifications of the embodiments, in particular those that are covered by modifications of the features of the examples described or by combination or partial combination of one or more of the features of the examples described within the scope of protection of the independent claims.

Claims

patent claims 1. Device with water-powered vibration function, in particular shower head with water-powered vibration function, the device (100) comprising: - a hollow base body (1) which extends in particular in a longitudinal direction, - a water inlet (2), which is arranged in particular on one side of the hollow base body (1), - one or more water outlets (la), which are arranged in particular on a side of the base body (1) facing away from the water inlet, - a vibration element (8) arranged within the base body (1), in particular with respect to the path of the water through the base body (1) between the water inlet (2) and the one or more water outlets (la), and - a switching mechanism (11) which is designed to switch between a first state in which the vibration element (8) is movably released in at least a part of the base body (1), and a second state in which a position of the vibration element (8) is held in the base body (1), wherein the switching mechanism (11) is designed such that a groove-guided rotational and/or displacement movement of a movable element (11b) of the switching mechanism (11) relative to a fixed element (11c) of the switching mechanism (11) switches between the first and the second state. 2. Device according to claim 1, characterized in that the switching mechanism (11) has a groove guide (11c, 11d) which is adapted to guide a movement of the movable element (11b) of the switching mechanism (11) relative to the fixed element (11c) of the switching mechanism (11). 3. Device according to claim 2, characterized in that the groove guide (11c, 11d) comprises a guide groove (11d) and a pin element (11c) engaging in the guide groove (11d), wherein a first end position (B) of the pin element (11d) in the guide groove (11d) corresponds to the first state and a second end position (A) of the pin element (11d) in the guide groove (11d) corresponds to the second state. 4. Device according to claim 2 or 3, characterized in that the switching mechanism (11) is designed so that the movement of the movable element (11b) of the switching mechanism (11) relative to the fixed element (11c) of the switching mechanism (11) guided by the groove guide switches between the first and the second state. 5. Device according to claim 4, characterized in that the groove-guided movement of the movable element (11b) of the switching mechanism (11) relative to the fixed element (11c) of the switching mechanism (11) comprises a rotational movement of the movable element (11b) of the switching mechanism (11) relative to the fixed element (11c) of the switching mechanism (11) and/or a displacement movement of the movable element (11b) of the switching mechanism (11) relative to the fixed element (11c) of the switching mechanism (11) in the longitudinal direction. 6. Device according to at least one of the preceding claims, characterized in that the vibration element (8) in the second state is held, in particular clamped, in the longitudinal direction of the base body (1) between a stop section (6a) on one side of the vibration element (8) and one or more holding sections (10; 10a-10c) on the other side of the vibration element (8). 7. Device according to claim 6, characterized in that the stop section (6a) on one side of the vibration element (8) and the one or more holding sections (10; 10a-10c) on the other side of the vibration element (8) are further apart in the longitudinal direction in the first state than in the second state, such that in the first state a limited free mobility of the vibration element (8) in the longitudinal direction between the stop section (6a) on one side of the vibration element (8) and the one or more holding sections (10; 10a-10c) on the other side of the vibration element (8) is released. 8. Device according to claim 6 or 7, characterized in that the vibration element (8) in the second state of the switching mechanism (11) is held firmly in the longitudinal direction between the stop section (6a) on one side of the vibration element (8) and the one or more holding sections (10; 10a-10c) on the other side of the vibration element (8), in particular such that an axial position of the vibration element (8) is held in the second state of the switching mechanism (11) and/or that a radial position of the vibration element (8) is held in the second state of the switching mechanism (11). 9. Device according to at least one of the preceding claims, characterized in that the vibration element (8) is spherical, in particular as a spherical body which comprises metal and/or plastic or consists of metal and/or plastic. 10. Device according to at least one of the preceding claims, characterized in that the switching mechanism (11) is adapted to switch from the first state to the second state, and/or the switching mechanism (11) is adapted to switch from the second state to the first state, wherein the water-operated vibration function of the device is switched on when the switching mechanism (11) is in the first state, and/or the vibration function of the device is switched off when the switching mechanism (11) is in the second state. 11. Device according to at least one of the preceding claims, characterized in that the vibration element (8) is designed to carry out a water-driven vibration movement in the first state of the switching mechanism (11) when water flows from the water inlet (2) to the one or more water outlets (la), the water flowing around the vibration element (8) between the water inlet (2) and the one or more water outlets (la); and the position of the vibration element (8) is held when the switching mechanism (11) is in the second state, while the water flows around the vibration element (8) between the water inlet (2) and the one or more water outlets (la) when water flows from the water inlet (2) to the one or more water outlets (la). 12. Device according to at least one of the preceding claims, characterized in that the switching mechanism (11) is mechanically designed and is set up for mechanical switching between the first and second states; and/or the switching mechanism (11) comprises a mechanical bistable mechanism, wherein the switching mechanism (11) provides two mechanically stable positions, each of which is maintained without the action of external forces, wherein a first position of the two mechanically stable positions corresponds to the first state of the switching mechanism (11) and a second position of the two mechanically stable positions corresponds to the second state of the switching mechanism (11). 13. Device according to at least one of the preceding claims, characterized in that the movable element (11b) is designed to move in the longitudinal direction of the base body (1), in particular in an axial direction of the base body (1), which particularly preferably has an interior space (lb) having a cylindrical shape. 14. Device according to claim 13, characterized in that the movable element (11b) of the switching mechanism (11) is designed to move in the longitudinal direction of the base body (1) between a first stable position, in particular a first stable position relative to a fixed element (11a) of the switching mechanism (11), and a second stable position, in particular a second stable position relative to the fixed element (11a) of the switching mechanism (11), wherein the movable element (11b) of the switching mechanism (11) is positioned in the first stable position when the switching mechanism (11) is in the first state, and the movable element (11b) of the switching mechanism (11) is positioned in the second stable position when the switching mechanism (11) is in the second state. 15. Device according to claim 14, characterized in that the movable element (11b) of the switching mechanism (11) is pulled further in the longitudinal direction towards the fixed element (11a) of the switching mechanism (11) in the first stable position than in the second stable position. 16. Device according to claim 14 or 15, characterized in that the movable element (11b) of the switching mechanism (11) is further away and/or retracted from the vibration element (8) in the first stable position in the longitudinal direction than in the second stable position. 17. Shower head comprising a device according to at least one of the preceding claims.