阅读说明：本技术 卫生淋浴头 (Sanitary shower head ) 是由 U.金勒 于 2019-06-25 设计创作，主要内容包括：本发明涉及一种卫生淋浴头(1),带有：淋浴头壳体(2),其带有流体入口(3)；在淋浴头壳体中与流体入口处于流体连通状态的流体腔(4)；以及具有至少一个射束出口开口(5)的射束盘(6),该射束盘布置在淋浴头壳体的淋浴射束出口侧(7)上,并且在周向侧保持在淋浴头壳体上以及在出口侧限界流体腔；其中,射束盘形成为弹性盘,其通过在流体腔中的流体压力能从初始轮廓(8)弹性地变形到最终轮廓中。流体腔在与射束盘对置的侧上由限界面限界,该限界面至少在分面区域中与初始轮廓一致地延伸,和/或所述初始轮廓朝着流体腔的方向向内拱曲地延伸。(The invention relates to a sanitary shower head (1) with: a shower head housing (2) with a fluid inlet (3); a fluid chamber (4) in fluid communication with the fluid inlet in the showerhead housing; and a jet disk (6) having at least one jet outlet opening (5), which is arranged on a shower jet outlet side (7) of the shower head housing and is held on the shower head housing on the circumferential side and delimits the fluid chamber on the outlet side; the beam disk is formed as an elastic disk which can be elastically deformed from an initial contour (8) into a final contour by means of a fluid pressure in the fluid chamber. The fluid chamber is delimited on the side opposite the beam disk by a limiting surface which extends at least in the partial region in accordance with the initial contour and/or the initial contour extends in an inwardly curved manner in the direction of the fluid chamber.)

1. Sanitary shower head (1) with:

-a shower head housing (2) with a fluid inlet (3);

-a fluid chamber (4) in the showerhead housing in fluid communication with the fluid inlet; and

-a jet disk (6) having at least one jet outlet opening (5), which is arranged on a shower jet outlet side (7) of the shower head housing and is held on the shower head housing on the circumferential side and delimits the fluid chamber on the outlet side;

-wherein the beam disk is formed as an elastic disk which is elastically deformable from an initial contour (8) into a final contour (9) by means of a fluid pressure in the fluid chamber,

it is characterized in that the preparation method is characterized in that,

-the fluid chamber (4) is delimited on the side (10) opposite the beam disk (6) by a limiting surface (11) which extends at least in a partial region (TB, TB 1) in accordance with the initial contour (8) of the beam disk and/or

-the initial contour (8) of the beam disk (6) extends in an inwardly arched manner in the direction of the fluid chamber (4).

2. Sanitary shower head according to one of the preceding claims, wherein the final contour of the jet disk extends outwardly arched.

3. Sanitary shower head according to one of the preceding claims, characterized in that the initial profile and/or the final profile is a metastable profile of the jet disk.

4. Sanitary shower head according to one of the preceding claims, characterized in that the jet disk is embodied in one piece from one or more materials or in multiple pieces from one or more materials.

5. Sanitary shower head according to one of the preceding claims, characterized in that the beam disk provides a first shower beam (12) in its initial contour and a second shower beam (13) in its final contour, wherein the first shower beam and the second shower beam differ in their angle of spread (AW).

6. Sanitary shower head according to one of the preceding claims, characterised in that the jet disk bears with its initial contour against the limiting surface at least in the area of the bearing surface (AB).

7. Sanitary shower head according to claim 6,

-the at least one beam outlet opening has a number of first beam outlet openings (5 a) and a number of second beam outlet openings (5 b), and

the beam disk is supported with its initial contour in such a way that the limiting surface closes a number of second beam outlet openings.

8. Sanitary shower head according to claim 6,

-the at least one beam outlet opening has a number of first beam outlet openings (5 a) and a number of second beam outlet openings (5 b), and

-the number of first beam outlet openings corresponds to a first fluid chamber partial region (4 a) and the number of second beam outlet openings corresponds to a second fluid chamber partial region (4 b),

-wherein the first fluid chamber part-area is in fluid communication with the fluid inlet not only when the beam disk occupies its initial contour but also when the beam disk occupies its final contour, and

-wherein the second fluid chamber part-area is in fluid communication with the fluid inlet when the beam disc occupies its final contour and is completely or partially isolated from the fluid inlet by sealing means (14) when the beam disc occupies its initial contour.

9. Sanitary shower head according to one of the preceding claims, characterized in that the limiting interface has at least one core (15) which projects into the at least one jet outlet opening when the jet disk occupies its initial contour.

Technical Field

The invention relates to a sanitary shower head comprising a shower head housing with a fluid inlet, a fluid chamber in the shower head housing in fluid communication with the fluid inlet, and a jet disk with at least one jet outlet opening, which is arranged on a shower jet outlet side of the shower head housing and is held on the shower head housing on the circumferential side and delimits the fluid chamber on the outlet side, wherein the jet disk is formed as an elastic disk which can be elastically deformed from an initial contour to a final contour by a fluid pressure in the fluid chamber.

Background

The publication DE 2901013 a1 discloses a sanitary shower head of the type mentioned at the outset, wherein the shower head there has a flat jet disk in the initial state without pressure, which jet disk retains its flat shape even under small water pressures and then produces parallel jets. At higher water pressures, the flat jet disk arches and produces a diverging jet. The support structure in the form of a spoke (speichenfolomig) delimits the arching of the flat beam disk.

Sanitary shower heads with deformable spray disks have also been proposed many times, which spray disks are not deformed by the fluid pressure acting on them, but rather by user-operated adjusting means. The publication DE 2235217 a therefore discloses a sanitary shower head with a deformable, in the initial state flat beam disk which is not deformed by the water pressure during operation but can be deformed by a user-actuated, mechanical adjusting device, wherein the beam disk has a concave or convex curvature (durchbieggng) as required. A convergent beam can be generated in the case of a concave curve and a divergent beam can be generated in the case of a convex curve.

EP 1613814B 1 discloses a sanitary shower head with a temperature-dependent spring-like deformable jet disk which is moved from a functional position into a cleaning position when the fluid flowing through exceeds a temperature limit value. In the cleaning position, for example calcium can be removed with little effort. Below the temperature limit value, the spring-like beam disk springs back into the functional position.

EP 0894536B 1 discloses a sanitary shower head with a spring-like flexible beam disk which is arched outwards in the initial contour and can be pressed in by the user by applying a pressing-in force in the direction of the interior of the housing of the shower head. Upon removal of the force, the flexible beam disk springs back into its original profile by itself. Calcium deposits or other deposits on the beam disk should be able to be broken away by this jumping process of the flexible beam disk (abgesprengt).

Another shower head of this type is known from the utility model DE 7904756U 1, which has a spring-like pressing-in jet disk.

Disclosure of Invention

The object of the present invention is to provide a sanitary shower head of the type mentioned at the outset which is improved over the prior art explained above and which, in particular, reduces undesirable dripping after the water supply has been cut off, can be produced comparatively simply and is functionally reliable.

The invention solves this technical problem by providing a sanitary shower head with the features of claim 1. Advantageous and preferred embodiments of the invention are the subject matter of further claims, the text of which is hereby fully incorporated into the description by reference.

Fluid, in particular water, can be supplied to the sanitary shower head via the fluid inlet, the fluid then reaching the fluid chamber and from there to the jet outlet opening or openings and, in the case of the formation of the respective jet, out of the jet outlet opening or openings. The elastically deformable beam packing assumes either the initial profile or the final profile in accordance with the fluid pressure present in the fluid chamber. The position of the column axis of the beam outlet opening may vary, for example, on the basis of the deformation of the beam disk. Such a change in position of the column axis may result in: the spread angle of the jet produced by the sanitary shower head is also related to the fluid pressure. This arrangement can thus be used to produce divergent, convergent or parallel beams as required depending on the system design and fluid pressure. In a divergent beam, the beam diameter of the beam increases with further axial expansion of the beam, in a parallel beam the beam diameter of the beam is practically constant with further expansion, and in a convergent or focused beam the beam diameter of the beam decreases with further expansion after the beam exit opening.

The jet disk can be held on the shower head housing, for example, with a positive or non-positive fit on the circumferential side. The term "held on the circumferential side" is understood here to mean that the jet disk is held on its disk edge surface and/or that a circumferential, annular holding surface covers or surrounds the front, i.e. outlet-side end surface of the jet disk, in particular a holding surface formed on the shower head housing.

The beam disk can be made of, for example, an elastic rubber material, a metal material or a plastic material or a mixture of these materials. The at least one jet outlet opening can be configured, for example, as a nozzle and/or a cylindrical bore. The at least one jet outlet opening preferably has a form-stable geometry in relation to the fluid pressure. The beam disk can have any number of beam outlet openings, in particular, for example, between ten and two hundred beam outlet openings. The sanitary shower head may have a single jet disk or alternatively a plurality of jet disks, as desired.

As soon as the fluid pressure is greater than the previously determined limit pressure, the beam disk is preferably elastically deformed by the fluid pressure in the direction from the initial contour to the final contour. The previously determined limit pressure may, for example, lie between 0.2 bar and 0.5 bar. The elastic deformation of the jet disk from the initial contour to the final contour preferably takes place in the direction of the main propagation direction of the jet produced by the sanitary shower head. As long as the limit pressure is not reached or exceeded, the beam disk remains in its initial contour. The beam disk is preferably designed to: when the beam disk is in its final contour and the fluid pressure in the fluid chamber drops, for example below the limit pressure, the beam disk automatically returns to the initial contour.

As soon as the fluid pressure is greater than a limit pressure that can be predefined and assigned to the respective final contour, the beam disk can assume a plurality of different final contours, in particular depending on the fluid pressure in the fluid chamber. The maximum predetermined limit pressure may be, for example, the fluid pressure which occurs at the maximum during normal shower operation of the shower head, which is, for example, between 1 bar and 3 bar. In other words, the final contour itself is dependent on the fluid pressure, i.e. the beam disk then assumes its initial contour, its maximum final contour or an intermediate contour between the initial contour and the maximum final contour, depending on the instantaneous fluid pressure in the fluid chamber.

According to one aspect of the invention, in the sanitary shower head according to the invention, the fluid chamber is delimited on the side opposite the jet disk by a limiting surface which extends at least in one partial region in accordance with the initial contour of the jet disk (konform).

The fluid chamber has an initial volume when the beam disk occupies its initial contour and a deformed volume when the beam disk occupies its final contour. The initial volume is typically smaller than the deformation volume, for example at least 50% smaller, wherein the initial contour in a corresponding embodiment may also be virtually zero, for example, in such a way that the jet disk with its initial contour rests against an opposite wall of the shower head housing which delimits the fluid chamber axially inward, that is to say rearward.

If the beam disk now coincides with the limiting surface, for example, runs parallel to the limiting surface and offset from it or abuts it in the partial area, the distance between the beam disk and the limiting surface can be kept as small as necessary in the partial area. The fluid chamber may thus have a particularly small initial volume. Because the fluid in the fluid chamber is primarily responsible for unwanted dripping, the small initial volume resists unwanted dripping after isolation of the water supply. Another advantage is that the beam partially or almost completely presses out the fluid present in the fluid chamber from the fluid chamber when the beam disc automatically returns to its original contour.

According to an additional or alternative aspect of the invention, the initial contour extends in the direction of the fluid chamber in an inwardly curved manner, that is to say concavely curved. Such a curvature of the initial contour may be advantageous in particular for producing a converging jet at a low fluid pressure which does not yet cause a deformation movement of the jet disk from its initial contour, in particular when a plurality of jet outlet openings are present whose cylinder axis is the normal of the jet disk, that is to say perpendicular to the jet disk surface.

In one embodiment of the invention, the final contour of the beam disk extends in an outwardly curved manner. In other words, the final contour of the beam disk is convexly curved. Such an orientation enables the generation of a diverging beam, for example when the cylinder axis of the respective beam outlet opening is the normal of the beam disk.

In one embodiment of the invention, the initial profile and/or the final profile is a metastable profile of the beam disk. In other words, small changes in the fluid pressure, for example, fluid pressure changes of less than 0.2 bar or 0.25 bar, in which case, for example, no changes in the initial profile or in the final profile are yet caused. A large change in fluid pressure, for example a change in fluid pressure of greater than or equal to 0.25 bar, results in a change in profile. For this purpose, the beam disk can be embodied as a so-called spring Element or as a "soundchip" Element.

In an alternative embodiment of the invention, the beam disk is made of a single material or a combination of materials or is assembled from a plurality of components made of the same material or of different materials, in particular rubber, plastic and/or metal.

In one embodiment of the invention, the spray disk provides a first shower spray in its initial contour and a second shower spray in its final contour, wherein the first and the second shower spray differ from each other in their spread angle. The divergence angle of the second shower beam may be greater than the divergence angle of the first shower beam, for example. The first shower beam may preferably be a convergent or parallel beam and the second shower beam may be a parallel or divergent beam.

In one embodiment of the invention, the beam disk is supported with its initial contour against the limiting surface at least in the region of the support surface. The support surface region may be, for example, a part of the facet region, or the facet region may form the support surface region in unison.

In one embodiment of the invention, the at least one jet outlet opening comprises a number of first jet outlet openings and a number of second jet outlet openings, and the jet disk is supported with its initial contour against a limiting surface in such a way that the limiting surface closes a number of second jet outlet openings. The result of this is that no fluid exits the second jet outlet opening as long as the jet disc is in its initial contour. The number of first jet outlet openings and the number of second jet outlet openings may be any number between, for example, five and one hundred jet outlet openings, respectively.

In one embodiment of the invention, the at least one beam outlet opening comprises a number of first beam outlet openings and a number of second beam outlet openings, wherein the number of first beam outlet openings corresponds to the first fluid chamber partial region and the number of second beam outlet openings corresponds to the second fluid chamber partial region. The first fluid chamber portion region is in fluid communication with the fluid inlet when either the beam disk occupies its initial contour or the beam disk occupies its final contour. The second fluid chamber partial region is in fluid communication with the fluid inlet when the beam disc occupies its final contour, and is completely or partially isolated by a sealing means of the fluid inlet (absterren) when the beam disc occupies its initial contour. The sealing device can be arranged on the beam disk and/or on the limiting surface. The sealing means may for example be an annular sealing means, in particular an O-ring.

In one embodiment of the invention, the limiting surface has at least one core (Dorn) which projects into the at least one beam outlet opening when the beam disk assumes its initial contour. The core can here project or protrude forward from the at least one beam outlet opening as desired when the beam disk occupies its initial contour. When the beam disk occupies its final contour, the core can still project into the at least one beam outlet opening or alternatively no longer extend to the at least one beam outlet opening, as required and applicable. Such a core may be provided for each beam outlet opening or for only a part of the beam outlet openings, as desired. The core can advantageously counteract calcium deposits on the beam outlet opening in such a way that they fall out of the beam outlet opening when the beam disk assumes its initial or final contour or during a deformation movement between these two contours.

Drawings

Advantageous embodiments of the invention are shown in the drawings. These and other embodiments of the invention are explained in detail below. The figures show that:

FIG. 1 is a longitudinal cross-sectional view of a sanitary shower head with a deformable beam disk in its initial profile;

FIG. 2 is the view of FIG. 1 with the beam disk in its final profile;

FIG. 3 is the view of FIG. 1 for a variation with a fully uniform fluid cavity boundary surface;

FIG. 4 is the view of FIG. 1 for a variation with partially uniform fluid cavity boundary surfaces;

FIG. 5 is the view of FIG. 2 for the FIG. 4 variation;

FIG. 6 is the view of FIG. 3 for a variation on the tape cartridge; and

fig. 7 is the view of fig. 2 for the variant of fig. 6.

Detailed Description

Fig. 1 and 2 show a sanitary shower head 1 with a shower head housing 2 having a fluid inlet 3. The fluid inlet 3 optionally has a thread 16 which can be screwed to a corresponding thread, not shown, of a water line, of a shower line, of a connection pipe of a domestic water supply or the like for supplying fluid.

A fluid chamber 4 in the shower head housing 2 is in fluid communication with the fluid inlet 3. The fluid chamber 4 is bounded on the outlet side by a jet disk 6 which is embodied in one piece, alternatively in multiple pieces. The jet disk 6 is arranged on the shower jet outlet side 7 of the shower head housing 2. The jet disk 6 is held on the circumferential side on the shower head housing 2, for example, in such a way that the shower head housing 2 surrounds the jet disk 6 in a form-fitting manner in an annular end surface region RS of the jet disk 6.

The beam disk 6 forms a resilient disk which is composed, for example, of a rubber material, metal and/or plastic material and can be deformed elastically from an initial contour 8 into a final contour 9 by the fluid pressure in the fluid chamber 4. In a corresponding embodiment, the initial contour 8 extends, as shown in fig. 1, in an inwardly arched manner in the direction of the fluid chamber 4.

As long as there is no fluid pressure in the fluid chamber 4, the beam disk 6 remains in its initial contour 8, as shown in fig. 1. When the fluid pressure exceeds a certain limit pressure, for example 0.25 bar, the beam disk 6 assumes its final contour 9, which extends according to fig. 2, for example, in an outwardly curved manner. For this purpose, the beam disk 6 is elastically deformed outwards by the fluid pressure in the direction away from the fluid chamber 4. In a corresponding embodiment, the beam disk 6 is deformed approximately in two steps directly from the initial contour 8 into a single final contour 9, in which the beam disk 6 remains even if the fluid pressure rises further. In an alternative embodiment, the jet disk 6 is deformed continuously or in stages as the fluid pressure increases from the initial contour 8 into a corresponding final contour 9, which is dependent on the fluid pressure, up to a maximum final contour that can be predefined.

When the fluid pressure in the fluid chamber 4 drops again to a fixed limit pressure, the beam disk 6 automatically returns to the initial contour 8 on account of its inherent elasticity or pretension. During the return of the beam disk to the initial contour 8, the beam disk 6 can also at least partially press out the fluid present in the fluid chamber 4 from the fluid chamber 4 in such a way that the beam disk reduces the volume of the fluid chamber 4 by its return movement, said volume being previously enlarged by the deformation of the beam disk 6 to the final contour. This can reduce undesirable dripping (Nachtropfen) after the fluid supply is isolated.

The jet disk 6 has at least one jet outlet opening 5, in the example shown in particular a plurality of jet outlet openings 5. Each beam outlet opening 5 can be configured, for example, as a cylindrical bore with a cylinder axis ZA, wherein the cylinder axis ZA forms the normal of the beam disk 6 at this point of the beam disk surface. The jet outlet opening 5 is in fluid communication with the fluid chamber 4. In operation of the shower head 1, a fluid, in particular water, is present under pressure in the fluid chamber 4 and from there reaches the spray outlet opening 5, from which the fluid exits on the shower spray outlet side 7 with the formation of a first shower spray 12 when the spray disk 6 is in its initial contour 8, or the fluid exits on the shower spray outlet side with the formation of a second shower spray 13 when the spray disk 6 is in its final contour 9. After emerging from the spray outlet opening 5, the first shower spray 12 or the second shower spray 13 spreads along a main diffusion direction AR, which typically extends axially, and with a corresponding diffusion angle AW. The spread angle AW is the angle which is drawn between the marginal jet direction RB of the first shower jet 12 or the second shower jet 13 and the main spread direction AR or between a straight line GE which is parallel to the latter and offset.

Fig. 1 shows: a first shower spray 12 in the form of a convergent spray is provided. By virtue of the fact that the initial contour 8 extends in an arcuate manner in the direction of the fluid chamber 4 and the cylinder axes ZA of the jet outlet openings 5 are each normal to the jet disk 6, the jet diameter of the first shower jet 12 is reduced directly after emerging from the jet outlet openings 5 and with further propagation of the first shower jet 12 in the main propagation direction AR. The spread angle AW of the first shower beam 12 is, for example, between about-20 ° and-3 °, more particularly between about-12 ° and-8 ° in the respective embodiment.

Fig. 2 shows: a second shower beam 13 in the form of a diverging beam is provided. By virtue of the fact that the final contour 9 extends outwardly convexly away from the fluid chamber 4 and the cylinder axes ZA of the jet outlet openings 5 are in each case normal to the jet disk 6, the jet diameter of the second shower jet 13 increases with further propagation of the second shower jet 13 in the propagation direction AR. The divergence angle AW of the second shower beam 13 is, for example, between about +20 ° and +3 °, more particularly between about +12 ° and +8 ° in the respective embodiment. The second shower jet 13 and the first shower jet 12 therefore differ in their divergence angle AW. It is thus possible to produce a converging jet or a diverging jet with the sanitary shower head 1 by adjusting the fluid pressure as required.

Fig. 3 shows a variant of the sanitary shower head 1 of fig. 1 and 2, wherein for better understanding the same reference numerals are used for identical and functionally equivalent elements and reference can also be made to the above detailed description of the exemplary embodiment of fig. 1 and 2 for this purpose, so that in the following substantially only the differences are discussed.

In the variant of fig. 3, the jet outlet openings 5 of the jet disk 6 have a number of first jet outlet openings 5a and a number of second jet outlet openings 5 b. The fluid chamber 4 is furthermore bounded on the side 10 opposite the beam disk 6 by a conforming limiting surface 11. The limiting surface 11 is provided by an inner body 17 of the sanitary shower head 1, which is arranged opposite the jet disk 6. In the variant of fig. 3, the volume of the fluid chamber 4 is reduced by the inner body 17, compared to the variants shown in fig. 1 and 2. The reduced volume of the fluid chamber 4 is advantageous for avoiding undesired dripping after insulating the fluid supply or the water supply.

The limiting surface 11 coincides with the initial contour 8 at least in the first partial surface area TB. The facet area TB optionally forms, as shown, a support surface area AB which inwardly supports the beam disk 6 with its original contour 8. The beam disk 6 with its initial contour 8 is supported against a limiting surface 11 in such a way that the limiting surface 11 closes the second beam outlet opening 5b, while the first beam outlet opening 5a remains free. In this embodiment, therefore, when the jet disk 6 is in its initial contour 8, the fluid only exits the first jet outlet opening 5a and also does not exit the second jet outlet opening 5 b. When the jet disk 6 occupies its final contour 9, the second jet outlet opening 5b is released and fluid can exit the first jet outlet opening 5a and the second jet outlet opening 5 b. When the beam disk 6 is in its final contour 9, the beam pattern of the beam can correspond to the beam pattern according to the variant of fig. 2.

In the exemplary embodiment of fig. 3, the entire limiting surface 11 corresponds to the initial contour 8 of the beam disk 6, wherein the inner body 17 has a central bore which is opposite the fluid inlet 3 and to which the first beam outlet opening 5a corresponds. In an alternative embodiment, the first jet outlet opening 5a is absent, i.e. no jet outlet opening 5 corresponds to a bore in the inner body 17 which extends the fluid inlet 3. In this case, no beam is provided as long as the beam disk 6 is in its initial contour 8.

Furthermore, the initial contour 8 is a stable or at least (jedenfalls) metastable contour of the beam disk 6 in the example shown. The beam disk 6 is thus deformed from its initial contour 8 only when the fluid pressure exceeds a limit value, which is for example approximately 0.25 bar and can alternatively have any other value. As long as the fluid pressure does not exceed the limit value, the profile of the jet disk 6 is not changed. Furthermore, this can be determined by implementing the beam disk 6 accordingly in terms of material and thickness.

In an alternative variant, the beam disk 6 with its initial contour 8 is supported by the limiting surface 11 in such a way that the latter closes all beam outlet openings 5 of the beam disk 6. In this case, therefore, the fluid does not exit the jet outlet opening 5 until the jet disk 6 has been deformed from its initial contour 8 to its final contour 9. In other alternative embodiments, the final contour 9 or only the final contour 9, instead of the initial contour 8, also forms a metastable contour of the beam disk 6.

Fig. 4 and 5 show a variant of the sanitary shower head 1 of fig. 3, wherein for better understanding the same reference numerals are used for identical and functionally equivalent elements and reference is also made to the above-described detailed description of the exemplary embodiment of fig. 3 for this purpose, so that in the following substantially only the differences are discussed. In this variant, the jet outlet openings 5 of the jet disk 6 have a number of first jet outlet openings 5a and a number of second jet outlet openings 5b, wherein the first jet outlet openings 5a correspond to the first fluid chamber partial region 4a and the second jet outlet openings 5b correspond to the second fluid chamber partial region 4 b. The first fluid chamber part region 4a is in fluid communication with the fluid inlet 3 both when the beam disk 6 occupies its initial contour 8 and when the beam disk 6 occupies its final contour 9. When the beam disk 6 occupies its final contour 9, the second fluid chamber partial region 4b is in fluid communication with the fluid inlet 3. When the beam disk 6 has assumed its initial contour 8, the second fluid chamber partial region 4b is completely isolated from the fluid inlet 3.

Accordingly, in this embodiment of the shower head 1, the shower head 1 can output the converging partial jet according to fig. 4 at a lower fluid pressure and the diverging full jet according to fig. 5 as the corresponding jet at a higher fluid pressure. In one variant, the jet disk 6 is moved by the fluid pressure in a two-stage deformation movement from its initial contour 8 according to fig. 4 into its final contour 9 according to fig. 5 and automatically returns to its initial contour 8 again when the fluid pressure is relieved, so that the shower head 1 selectively provides two assigned jets. In an alternative variant, the spray disk 6 is moved in a continuous deformation movement by the fluid pressure from its initial contour 8 according to fig. 4 into a final contour 9 which changes continuously as a function of the fluid pressure, so that the shower head 1 provides a spray whose spray pattern changes correspondingly continuously between the spray pattern in the initial contour 8 of the spray disk 6 according to fig. 4 and the spray pattern in the maximum final contour 9 of the spray disk 6 according to fig. 5.

In the example shown, the inner body 17 has a shape on its side 10 opposite the beam disk 6, which is modified with respect to the example of fig. 3 with respect to the limiting surface 11. In particular, the limiting surface 11 extends only in a radially outer partial surface region TB1, which corresponds to the second fluid chamber partial region 4b and corresponds to the initial contour 8 of the beam disk 6, while the limiting surface springs back in a stepped manner in a central partial surface region TB2, which corresponds to the first fluid chamber partial region 4 a. A sealing device 14 in the form of an O-ring, against which the beam disk 6 is supported in its initial contour 8, seals off the second fluid chamber part region 4b with respect to the first fluid chamber part region 4a and thus also with respect to the fluid inlet 3 into the first fluid chamber part region 4 a. The sealing means 14 thus form in this embodiment a support surface area AB against which the beam disk 6 is supported in its initial contour 8.

The sealing device 14 is in the example shown retained on the inner body 17. In alternative embodiments, the sealing device 14 is held on the beam disk 6, or a first part of the sealing device is held on the beam disk 6 and a second part on the inner body 17. In a further alternative embodiment, the second fluid chamber partial region 4b is only partially sealed off from the fluid inlet 3 by the sealing device 14 when the beam disk 6 occupies its initial contour 8. In this case, therefore, when the beam disk 6 has assumed its initial contour 8, the fluid then also passes from the first fluid chamber partial region 4a into the second fluid chamber partial region 4 b.

Fig. 6 and 7 show a further variant of the sanitary shower head of fig. 3, wherein for a better understanding the same reference numerals are used for identical and functionally equivalent elements and reference can also be made to the above-described detailed explanation of the embodiment of fig. 3 for this purpose, so that in the following substantially only the differences are discussed. In this embodiment, all the jet outlet openings 5 correspond to the partial surface regions TB of the limiting surfaces 11 which extend in accordance with the initial contour 8, and the limiting surfaces 11 of the inner body 17 have a number of cores 15 which project into the jet outlet openings 5 when the jet disk 6 occupies its initial contour 8.

The number of cores 15 is in the respective embodiment equal to the number of jet outlet openings 5, so that one core 15 is assigned to each jet outlet opening 5. In an alternative embodiment, fewer cores 15 are provided than the jet outlet openings 5. In the respective embodiment, each core 15 projects into the respective jet outlet opening 5 in such a way that it protrudes from the jet outlet opening 5 when the jet disk 6 occupies its initial contour 8. In an alternative embodiment, each core 15 extends into the jet outlet opening 5, but does not extend from said jet outlet opening. When the jet disk 6 has assumed its final contour 9, the core 15 no longer protrudes into the jet outlet opening 5, so that the latter is completely open to the flow of the fluid forming the jet. By the movement of the core 15, in particular by the core, into and out of the jet outlet opening 5, calcium deposits on the jet outlet opening 5 or their detachment can be avoided.

In a variant of the sanitary shower head according to the invention, which is different from the example shown, it is possible to orient the column axis ZA of the jet outlet opening 5, i.e. the longitudinal axis, not orthogonally to the jet disk 6. The orientation of the column axis ZA can be selected in particular such that a parallel beam or a divergent beam can be generated, for example, with the beam disk 6 in its initial contour 8.

In other variants not shown, the number and/or arrangement of the jet outlet openings 5 of the sanitary shower head 1 according to the invention is varied compared to the example shown. In the respective embodiment, the sanitary shower head 1 has in particular only one jet outlet opening 5 in order to generate a so-called gushing jet (schwallstahl). The shower head may alternatively have a plurality of jet outlet openings 5, which jet outlet openings 5 are arranged in groups or distributed uniformly over the entire jet disk surface or eccentrically in a central region, including embodiments in which different customary jet patterns, such as soft jets and massage jets, can be generated with the jet outlet openings 5.

In other variants, the sanitary shower head 1 can be any combination of the variants shown in fig. 1 to 7. The sanitary shower head 1 therefore has, for example, a sealing device 14 and additionally a core 15.

It is evident from the embodiments shown and explained above that the invention provides a sanitary shower head which reduces undesired dripping (Nachtropfen) after the water supply has been cut off, which can be manufactured relatively simply and which is functionally reliable.