DE10313823A1 - Shower head with air input, e.g. for personal hygiene, - Google Patents

Abstract

The shower head (11) has a housing (12) and an adjuster device on one side for adjusting water distribution and supply to the jet outlet surface, which may be a small central region and the region round it. An air supply device aerates the water jets and is operated simultaneously with the switching of the water between the regions.

Description

The invention relates to a shower with a housing and a beam exit surface out of the housing. The beam exit area has a large number of outlet openings. Such showers have long been known in many forms and show in itself numerous functions.

The invention has for its object a to create the aforementioned shower with functional options, which are not yet known in the prior art and in particular one enable advantageous use.

This task is solved by a shower with the features of claim 1. Advantageous and preferred embodiments of the invention are the subject of further claims and will be closer in the following explained. The wording of the claims and the summary hereby becomes the content by express reference made the description.

The shower head contains a housing that leads to the user side is completed by a spray disc. This spray disc contains a variety of beam outlets defined by certain Arrangements can be specially designed. In particular, the shower contains a flat large housing. The aerator can, for example, be designed so that it passes through the air introduces the jet exit disc into the housing, for example directly in the middle in the preferably flat spray disc.

A particularly sensible distribution of the ventilated Water inside the housing and thus a particularly sensible distribution of the ventilated rays outside of the housing To achieve the shower can be a jet-forming agent according to the invention to form several individual water jets within the Housing included. The individual water jets are not only left when you leave the shower formed. In this way it is already possible inside the housing certain operations with the water jets.

The ventilation device can be developed the invention can be designed such that the water before Blasting agent aerated. Then the jet-forming agent is used from a ventilated jet single ventilated To form jets, which are then distributed within the shower enclosure, for example on a surface, the one opposite the water inlet large Has diameter, for example one in the range of 10 to 20 times larger diameter.

But it is also possible and it is preferred by the invention that the jet forming agent and / or the ventilation device is designed such that the individual beams already formed be ventilated jointly and / or separately. It will possible, do not take into account later ventilation when forming the water jets to have to.

In further training of Invention, the shower head can have guide means for the aerated water jets to the beam outlet openings of the to guide the entire spray disc, preferably evenly, each but also uneven if desired.

The guidelines can be of various kinds Points of the shower can be arranged, for example in the distribution chamber, which is formed directly behind the spray disc. The guidelines can but also be arranged where the rays formed are ventilated or the ventilated Rays are formed.

For example, in advanced training, the guidelines and / or the ventilation device be designed such that they swirl the aerated rays produce. This is successfully installed is suitable, among other things, inside the shower enclosure to increase the length of stay of the rays in order to longer and / or more intensive contact with him the existing shower equipment to reach.

The ventilation device can be developed the invention can be designed so that it generates an air flow, the perpendicular to the water flow meets, as already mentioned, on already educated individuals Water jets can hit.

But it is also possible and is within the scope of finding to design the ventilation device in such a way that it already generates individual air jets or air flows, which then meet the water flow separately.

In particular, it can be provided that every air jet is assigned to a water jet on which he meets. It can be a complete one or only partial separation of air flows and water flows in the housing carried out become. This makes it possible the individual jets of water to different degrees or on to ventilate at a different point.

To generate the individual water jets the jet-forming means can have a perforated disk, for example, the across the water flow is arranged. A water jet is then generated through each hole. These water jets can As already mentioned, either completely be separated, or only partially separated, so that within of a common water volume form different individual flow threads.

The ventilation device can be a central one Have sleeve or hub, through the inside of which the air from the outside enters the inside of the housing. At the inner end, the hub can have, for example, a smooth end face, which forms a flat annular space with a corresponding counter surface, through which the air flow is directed onto the water. However, it is also possible and within the scope of the invention that this front end has radial air ducts, for example grooves, which lead to a separation of the air flow.

The end of the radial air ducts, for example the grooves or the channels, is opposite the openings aligned the perforated disc. For example, the alignment be such that the centerline of the grooves is aimed at the center of the openings. But it is also possible that there is a tangential orientation so that the center line of the Grooves off-center up to tangent to the openings the perforated disc runs.

The air ducts can be exactly radial or light aslant run.

The hub, at the inner end of which Air can flow essentially radially in a plane to the longitudinal axis on its outer surface, the in a cylindrical surface lies, also tours for the ventilated Contain rays. These tours can it is the grooves that are aligned with the holes in the perforated disc are. These tours serve the ventilated Beams scattered along the way in the shower enclosure to leave, that is delay their reunification or to hinder.

The grooves can primarily be in the axial direction get lost, they can but also slightly sloping run, for example in the manner of a steep thread.

At the foot of the hub, that is at the Place where the water flow radially outwards into the interior of the shower enclosure can be redirected, a redirection by a corresponding conical Design of the outside the hub. This redirection can also happen gradually for example in that the outside of the hub in a curved shape merges into a radial plane. This curved one Form or gradual transition or the redirection can also be independent of the presence of axial water channels happen.

The deflecting means can also depending on the one you want Purpose, individual channels have, which can then run linear, oblique or curved.

Inside the shower housing, that is, behind the spray disc, can Guide means may be arranged which are aligned with the direction of the deflection means could be. This is to ensure a good distribution of the aerated water jets over the the whole area the spray disc can be reached. The guidance means can for example at the back of the housing or also be present on an insert in the housing.

In continuing education, a shower in addition to a housing and a beam exit surface with outlet openings and a subdivision into at least two areas exhibit. With this changeover device, the water supply can be between a first area and a second area. Furthermore, water is provided in the shower, which for the Water supply in the shower ensures. An air supply device is provided for ventilation the water jets coming out of the shower. By means of the air supply device the water supply is aerated, and between the water inlet and the jet outlet surface. The Air supply device can be activated and deactivated, so it can can be switched. The changeover device and the air supply device are such according to the invention coupled with each other that when operating the changeover device the air supply from activated to deactivated or from deactivated is switched to activated. The air supply device thus changes their activation state when from the first to the second area is converted. In other words, according to the invention, when actuated Changeover device given a double function. So here it is also clear that the direction of operation could be the other way around, So when activating or deactivating the air supply device a change from one area to another.

In this way there is a advantageous double function. With a single push two functions triggered. Above all, it is possible the function of the air supply device with regard to activated or deactivated with the selection of the areas to merge or depending on do.

In a further embodiment of the invention Is it possible, to design the first area as a partial area of the beam exit surface, where it can be a central area, for example. Here is it possible to provide the entire jet exit area as the second area. For example, the air supply can be activated when the Switching device placed on the second area or on the entire steel exit surface is. This has the advantage that the air supply or the ventilation the water jets are voluminous appearing water outlet can be created that just with the increased number of outlet openings in the case of a larger area is an advantage.

The changeover device is advantageous can be operated by hand. To do this, either a button or slider or the like can be pressed in. An entire and in particular larger housing part can be advantageous across from another housing part or the rest of the case be moved.

The two areas or all areas can be connected to the water inlet for the water supply via a distributor chamber. The distributors Chamber can advantageously extend over the surface of all areas or the back of the beam exit surface. This ensures good water supply for all areas and all jet outlet openings on the jet outlet surface. The changeover device can be designed such that it is arranged and acts in the distribution chamber. When adjusting to the first area, it can limit the distribution chamber to the area corresponding to the first area. When changing to another area or the second area, the boundary of the distributor chamber is adapted to the area of this further area. If the switch is made to the entire jet exit surface, the boundary of the distributor chamber can be removed so that it extends over the entire jet exit area.

The changeover device can Have closure, which is particularly preferred for limitation the distribution chamber can be formed. A boundary of the distribution chamber is easily possible by that the clasp to the back the beam exit area can be created. This system is advantageously sealing. Particularly advantageous the distribution chamber is delimited by a wall as Closure. The area within this wall advantageously forms the part of the distribution chamber that corresponds to the selected area of the jet exit surface.

To improve the tightness of the A trained seal can be provided. Suitable for this for example a lip seal. It can be an investment direction have a seal seat, which in the direction of water pressure runs in the limited distribution chamber. An emerging water pressure carries additionally to the sealing effect.

There is a possibility of executing a beam exit surface in choosing an elastic material. For example, this is an elastomer, which can be rubbery. To such a spray disc can on the back a wall or a closure can be created to achieve a sealing effect. A previously mentioned seal can advantageously be on the back the spray disc in a protruding form. So can you save yourself a separate seal.

A water supply is advantageous centrally in the shower, at least in the area just before the distribution chamber. So one is possible even distribution over the Beam exit surface possible. There is also a central air supply device for the shower or Beam exit surface advantageous. Water is advantageously supplied from the rear the beam exit area or the shower. An air supply device can be opened through a central opening the beam exit area run, so from the front into the shower housing.

For the air supply can be provided a channel that is not only through the jet exit surface run can, but can even be connected to it or in its field is attached. It is also possible to change the device to connect with the water inlet or to fasten to it. To move and activating the shower head in one embodiment of the invention the beam exit area opposite the Water access must be moved. A closer can then be made to the Water access the channel for close the air supply or open. simultaneously would for example a wall of the changeover device limit the distribution chamber.

As stated above, the Air supply through the front of the shower, through the Beam exit surface through, run. However, it is an advantage if the air from the channel of the air supply with a direction transverse to the water supply or water ingress. Using the Venturi effect air is sucked in and the water swirls with the air instead. Furthermore, the air can enter the water supply be distributed.

The water supply can during training Invention a variety of openings have which are ring-shaped can be distributed around a central axis. The openings are advantageously elongated holes, among other things to accelerate the individual water jets. Right away behind the openings the air can enter from the air supply, for example through the aforementioned venturi effect. So is a good mix of Air and water accessible.

Furthermore it is possible in Direction of water flow behind the point of air swirl provided. On the se swirling devices, which for example may have the shape of several stages, the mixture meets Water and entrained air and is even more swirled and mixed. Swirling devices of this type are advantageous around a central one Axis of the shower enclosure or a channel for the air supply is distributed. For example, they can be on the outside the channel walls are molded. This is particularly useful when the channel for the air supply is tubular, with it on the front the shower can be attached.

In addition to your swirl functions, the Swirling devices therefor be trained, the water supply over the entire back area the beam exit area ensure within the distribution chamber or the water supply redirect and distribute. An approximately uniform distribution advantageously takes place the water supply into the distribution chamber.

These and further features emerge from the claims and also from the description and the drawings, the individual features being realized individually or in groups in the form of sub-combinations in one embodiment of the invention and in other fields be and can represent advantageous as well as protectable versions for which protection is claimed here.

Summary of the drawings

An embodiment of the invention is shown in the drawings and is explained in more detail below.

The drawings show:

1 a section through a shower according to the invention with a water outlet limited to a first central area and without air supply and

2 the shower off 1 with air supply and changeover to the entire jet outlet area.

3 one of the 1 corresponding representation in a further embodiment;

4 one of the 3 corresponding section through yet another embodiment;

5 on an enlarged scale a cross section through the jet disc of the embodiment of 4 ;

6 an enlarged cross section through the edge of the housing of the embodiment 4 ;

7 on an enlarged scale a section through the central part of the embodiment of the 3 ;

8th a plan view of the perforated disc of the embodiment 7 ;

9 a side view of the ventilation hub in the embodiment of 3 and 7 ;

10 an axial section through one opposite 9 modified ventilation hub;

11 the view of the ventilation hub of the 10 from above;

12 a development of the side view of the ventilation hub of the 10 and 11 ;

13 one of the 11 corresponding representation in a modified embodiment;

14 the processing of the side view of the embodiment 13 ,

detailed Description of the embodiment

In the 1 and 2 is a shower according to the invention 11 shown. The shower 11 consists of a housing jacket 12 which is at a base 13 sits or is guided over it. Using a lock nut 15 is the shower 11 with a water connection 14 connected in a known ball head design. The water connection 14 sits on a ceiling, for example.

The housing jacket 12 has roughly the shape of a pipe socket 17 on that down into the flat expansion 18 transforms. The base is similar 13 trained, which is also with an extension 24 widened downwards.

In the upper part of the base 13 are rubber rings 20 used. There are also protrusions 22 from. Using the rubber rings 20 is a sealing connection to the pipe socket 17 of the housing jacket 12 given. Furthermore, the pipe neck has 17 groove 19 on, which run obliquely like a thread. The projections engage in these grooves 22 on. So the casing shifts 12 when turning relative to the base 13 as from the comparison between 1 and 2 is clear. Instead of such a thread-like design, short grooves and projections could also be used to press and thus move the housing shell 12 relative to the base 13 can be adjusted directly along the central axis.

The expansion 24 the base 13 has a circumferential and downstanding ring heel at the outer end 25 on. Its exact shape can be from 2 be seen. The ring heel goes down 25 into a narrow V-like profile. When post after 1 this serves the sealing effect. This will be discussed in more detail below.

Furthermore, the shower shows 11 a front 27 on the outside with the housing jacket 12 connected is. The front 27 carries the spray disc on the back 29 , The spray disc 29 is made in a known manner from an elastomer and has injection molded nozzles to form the outlet openings 30 , Out 1 and particularly 2 can be seen that the back 31 the spray disc 29 is essentially flat. Only the all-round sealing lip 32 is at the back 31 formed. You can on the inside of the ring heel 25 concern how out 1 can be seen.

An entry of water 33 runs through the water connection 14 in the shower 11 into it. From the ball head of the water connection 14 the water enters through the openings 34 , which are distributed around a central axis, in the upper part of the distribution chamber 36 which is inside the pipe insert 17 located. How out 1 can be seen, the water due to the sealing concern of the expansion 24 with the adjacent ring heel 25 at the back 31 the spray disc 29 only outlet openings located in this area 30 to reach. There are no other river options for the water.

In particular, the outer area area B without area A, closed off.

Now the case shell 12 with its expansion 18 towards the base 13 brought down, so the expansion moves 24 with the ring heel 25 from the back 31 the spray disc 29 path. The distribution chamber 36 is fully open and now covers the area of the openings 34 of water ingress 33 over the entire area of the back of the spray disc 29 , This means that the water can flow through all of the outlet openings 30 the spray disc 29 escape.

Furthermore, from a comparison of 2 to 1 to see how the closure here 42 from the upper opening of the air duct 38 is disengaged. So the air supply 40 from the front of the spray disc 29 or the front 27 the shower 11 in the shower or in the distribution chamber 36 into it freely. As can be seen, the air hits from the upper opening of the air duct 38 exiting roughly across the water through the openings 34 down into the distribution chamber 36 shoots. Due to the Venturi effect, the incoming water carries the air with it. At the same time, a certain mixture of water and air begins.

This water-air mixture meets a swirling step 46 , which is in the lower area of the outside of the air duct 38 is molded. As also from the bevel of the interlacing sales 46 It can be seen that water hitting from above is to the side, i.e. into the lateral expansion of the distribution chamber 36 in, redirected. Whirling or mixing of the water-air mixture is also achieved. Here it is possible to provide more similar paragraphs or levels. The swirling shoulder is preferably designed in a step-like manner with a plurality of steps. The course of the steps can correspond to the bevel.

As can be seen from the drawings, the course of the expansion is 24 the base 13 according to the course of the expansion 18 of the housing jacket 12 , The gradation in the expansion 18 serves to extend into this gradation 24 To offer space. Furthermore, it limits the outer ring area of the distribution chamber 36 such that the water inlet to all outlet openings 30 in the post after 2 , i.e. with water supply to the entire area of the spray disc 29 , is approximately the same.

Out 2 it can be seen that under certain circumstances it is possible, in addition to a more or less step changeover between first area A and second area B, and accordingly between non-ventilated and ventilated, to design at least one of the functions to be adjustable. The ventilation device is particularly suitable for this. The shape of the lower part of the clasp 42 and the corresponding opening in the upper part of the air duct 38 could be designed such that the entire movement of the relative movement between the housing shell 12 and base 13 a constant opening of the air supply 40 via the airways 44 he follows. This can be even stronger than when opening the distribution chamber 36 his.

The 3 shows one of the embodiment of FIG 1 and 2 Similar shower, but without a changeover device. Behind the spray disc 29 is an insert plate 50 arranged with the outlet openings 30 the spray disc 29 corresponding breakthroughs 51 having. The insert plate is made of a harder plastic than the spray disc 29 , One of its tasks is the elastomer spray disc 29 on the front side 27 and on the ground 52 to fix the housing. This is to prevent the jet angles of the individual jet outlet nipples from changing during operation or during assembly.

On the back contains the insert plate 50 individual ribs 53 , which serve to subdivide the space between the spray disc and the rear wall 52 of the housing. This division is intended to direct and direct the individual ventilated jets within the housing.

More details, in particular the feeder of air and water, will be later still explained become.

4 shows a further embodiment of a shower, which is particularly simple this time. The shower housing contains a rear wall 52 and a very simple spray disc 54 , between which a very flat disc-like distribution chamber 55 is formed. The sealing is done in the edge area by a in a groove 56 the back 52 existing gasket on the back 56 the spray disc 54 rests, see 6 , The spray disc 54 is formed here overall from a relatively hard plastic, so that the direction and shape of the jet outlet openings 57 do not change. How to 5 can see an enlargement of the housing of the 4 represents the beam outlet openings 57 diagonally arranged and conical.

The connection of the shower housing 3 and 4 with the water supply corresponds to that 1 so that these details are not explained in detail. The water passing through the inlet meets in the embodiment 3 and 4 now on a perforated disc arranged transversely to the flow direction of the water 60 , see the enlarged view in 7 , The perforated disc 60 is circular and flat and has an edge flange running in the direction of flow 61 on. The opening 62 of the inlet has a significantly smaller diameter than the perforated disc 60 , The one in the perforated disc 60 arranged circular holes 63 are arranged along the order. So the water has to come out of the opening 62 first be redirected before going to the openings 63 arrives.

Through the holes 63 the perforated disc 60 the inflowing water is divided into individual water jets. Immediately below the middle part of the perforated disc 60 is the ventilation hub 64 arranged according to both in the embodiment 3 as well as in the embodiment 4 is available. 7 shows the off management of the 3 on an enlarged scale. The inner end of the ventilation hub 64 is from a flat face 65 educated. This is a short distance in front of or behind the perforated disc 60 , That through the central opening 40 the ventilation hub 64 Air drawn in is directed as a very narrow, flat stream onto the already separated water jets. Due to the fast flow of water jets downstream of the holes 63 a Venturi effect is created, which sucks in the air flow there.

The ventilated jets then reach the cylindrical outside 66 the ventilation hub 64 along to the foot 67 the hub, where the outside widens conically at an angle of about 45 degrees, for example. This conical extension 67 lies on the insert plate 50 on which the water then flows radially outwards in one plane. The angle of the deflection surface 68 can be between 10 and 80 degrees. A gradual curved transition is also conceivable. This deflection device serves to deflect the aerated water jets produced radially outward into the distribution chamber arranged behind the jet disk.

8th shows very schematically the top view of the perforated disc 60 with eight holes 63 , In an actual embodiment, the number of holes is 63 larger in order to generate the largest possible number of water jets. All holes 63 lie on a circle near the outer circumference of the perforated disc 60 ,

9 shows the ventilation hub 64 the 7 in side view. It can clearly be seen that the deflecting surface 68 runs over the entire circumference. The outer surface 66 is smooth in the embodiment shown here. The face 65 Likewise.

The 10 to 12 show one opposite the ventilation hub 64 modified embodiment of a ventilation hub 164 , In the face 165 are several radial channels 70 trained by the inside 40 the hub 164 lead to the outside. In the lateral surface are in the same place as the radial channels 70 , axial channels 71 present, which are formed by grooves. Any radial channel 70 goes into an axial channel 71 about. In the deflection surface 68 are in extension of the channels 70 and 71 more channels 72 trained whose depth, see 10 , to the end of the deflection surface 68 decreases. This way, on the face 165 the ventilation hub 164 ensures that individual air jets are created, which are then directed through the holes 63 formed water jets.

While in the top view of the 11 the channels 72 in the deflection surface 68 show a straight radial 13 and 14 the corresponding representations for a further ventilation hub, in which the channels 172 in the deflection surface 168 curved or curved. This gives the ventilated jets an oblique direction, which they maintain when they leave the ventilation hub. In this way a swirling of the aerated jets is achieved within the distribution chamber of the shower housing.

In the embodiment according to 14 which shows a development of the side view of a ventilation hub, the channels run 171 not rectilinear parallel to the axis, as in the embodiment according to 12 , but at an angle to the axis. So they run like a steep thread. This initiates the generation of a swirl of the aerated rays earlier.

The ventilation hub 164 the 10 can be arranged, for example, so that in the plane of the end face 165 areas between the channels 70 the perforated plate 60 touch on their bottom. Then completely separate air jets are generated. But it can also remain a certain distance, so that preferential flow paths at the location of the channels 70 be generated.

What has been said about the control devices based on the ventilation hubs can also be continued in the distribution chamber. For example, the beam exit openings can extend the projection of the channels in a straight line 72 . 172 to be ordered. Not all channels need to be 72 respectively. 172 have the same curvature or the same direction. It can be ensured that aerated water jets, which are to be directed further outwards in the distribution chamber, leave the base of the ventilation hub more straightforwardly, while the jets intended for the nearby jet outlet openings are provided with a larger swirl.

Claims (31)

Shower, with 1.1 a housing, 1.2 a jet outlet disc ( 27 ), the 1.2.1 a variety of beam outlets ( 30 ), 1.3 a water inlet into the housing and 1.4 a ventilation device for aerating the water flowing through the shower. Shower according to claim 1, with a jet-forming means (perforated disc 60 ) to form several individual water jets. Shower according to claim 2, wherein the ventilation device is designed such that the water in the direction of flow ventilated before the blasting agent. Shower according to claim 2 or 3, wherein the jet forming agent and / or the ventilation device is designed such that the individual water jets together and / or separately ventilated. Shower according to one of the preceding claims, with guide means for guiding the aerated water jets to the jet outlet openings ( 30 ) of the entire spray disc ( 29 ). Shower according to one of the preceding claims, who designed the guide means and / or the ventilation device in this way are that they create a swirl of aerated rays. Shower according to one of the preceding claims, the the ventilation device is designed such that it generates individual ventilation jets. Shower according to claim 7, wherein each aerating jet is assigned to a water jet. Shower according to one of claims 2 to 8, in which the jet-forming means comprises a perforated disc ( 60 ) having. Shower according to one of the preceding claims, in which the ventilation device comprises a hub ( 64 ) which has at least one radial air duct in the region of its end directed into the interior of the housing. Shower according to Claim 10, in which the ventilation hub has essentially axially extending guides ( 71 . 171 ) for the individual ventilated jets. Shower according to Claim 11, in which the jet guides ( 171 ) on the outside of the ventilation hub ( 168 ) run obliquely. Shower according to one of claims 5 to 12, wherein the guide means on the foot of the ventilation hub ( 64 ) has arranged deflecting means. Shower according to claim 13, wherein the deflecting means obliquely to the radius, optionally curved in the plane of the jet disc ( 27 ) run. Shower according to one of claims 5 to 14, with guide means at the back the spray disc and / or the front of the rear wall of the distribution chamber of the shower enclosure. Shower according to one of the preceding claims, wherein the ventilation device can be activated and deactivated. Shower according to one of the preceding claims, in which the jet outlet surface ( 29 ) at least two areas (A, B) and a changeover device ( 24 ) between a water supply to the first area (A) or to the second area (B), the changeover device ( 24 ) and the ventilation or air supply device are coupled to one another such that when the changeover device is actuated, the air supply device changes from activated to deactivated or from deactivated to activated or changes its activation state. Shower according to Claim 17, in which the first region (A) is a partial region of the jet exit surface ( 29 ) and the second area (B) comprises the entire beam exit area including the first area, the first area preferably being arranged centrally in the beam exit area. Shower according to claim 17 or 18, wherein the air supply ( 38 . 40 ) is activated when the changeover device ( 24 ) is set to the second area (B). Shower according to one of Claims 17 - 19, in which the changeover device ( 24 ) can be operated manually, preferably by moving a housing part ( 12 . 18 ) with the jet exit surface ( 29 ) compared to a housing part ( 13 . 24 ) with water access ( 33 ). Shower according to one of claims 17 - 20, in which the areas (A, B) via a distributor chamber ( 36 ) with the water supply ( 14 ) or water access ( 33 ) are connected, in particular across the surface of all areas (A, B), the changeover device ( 24 ) when switching to the first area (A) the distribution chamber limits to the first area and when switching to the second area (B) limits the distribution chamber ( 36 ) is canceled. Shower according to one of claims 17 - 21, wherein the changeover device has a closure which on the back ( 31 ) the beam exit area ( 29 ) can be created to rearrange and limit the distribution chamber ( 36 ), the system preferably being sealing and in particular a wall ( 24 ) of the changeover device rests on the back. Shower according to claim 22, in which a seal is provided for sealing the system, preferably a lip seal ( 32 ) with the direction of contact to a seal seat in the direction of the water pressure. Shower according to one of claims 17 - 23, wherein the jet exit surface from a jet disc ( 29 ) is formed from an elastic material, preferably an elastomer, in particular with one on the back ( 31 ) molded seal on the spray disc ( 32 ). Shower according to one of claims 17 - 24, wherein the water supply ( 14 ) in the shower ( 11 ) takes place centrally, as well as the air supply device ( 38 . 40 ), preferably the air supply device through a central opening ( 40 ) in the beam exit area ( 29 ) runs. Shower according to claim 25, with an air supply device via a channel ( 38 ) with the jet exit surface ( 29 ) is connected, the changeover device ( 24 ) with water access ( 33 ) is connected, whereby for changing over and activating the jet exit surface is movable relative to the water inlet and thereby a closer ( 42 ) at the water inlet the channel ( 38 ) closes or opens. Shower according to Claim 26, in which the air from the duct ( 38 ) transverse to the direction of the water supply ( 14 ) or water access ( 33 ) entry. Shower according to one of Claims 17 to 27, in which the water supply has a plurality of openings (annularly distributed around a central axis) 34 ) and the air from the air supply directly behind the openings ( 38 . 40 ) joins. Shower according to one of Claims 17 - 28, in which swirling devices ( 46 ) are provided, preferably in step form, in particular the swirling devices in the direction of the water flow behind the location of the air inlet ( 44 ) are arranged and preferably around a central axis or a channel ( 38 ) for the air supply ( 40 ) are distributed. Shower according to Claim 29, in which the swirling devices ( 46 ) for a deflection and distribution of the water supply to the areas (A, B) of the jet exit surface ( 29 ) are designed, preferably for an even distribution in the distribution chamber ( 36 ). Shower according to claim 25 or 26, wherein the channel ( 38 ) the air supply ( 40 ) is tubular and on the front of the shower ( 11 ) is attached and centrally through the distribution chamber ( 36 ) runs, with the swirling devices ( 36 ) are molded on.