EP3677340B1 - Shower head comprising a spray disc holding device - Google Patents

Description

The invention relates to a shower head with a base body, a jet disk which is held on a shower jet outlet side of the base body and has at least one jet outlet opening, and a jet disk holding device with which the jet disk is fastened to a spray disk holding area of the base body.

Shower heads of this type are in use in a variety of designs and are suitable, for example, for sanitary showers, such as hand showers, side showers and overhead showers in shower and bathtub facilities.

There are known shower heads of this type, in which the jet disc holding device contains a single screw that is pushed through a central opening in the jet disc from the outside and screwed into a central thread on the base body, in order to then hold the jet disc on the base body with its screw head. This jet disc retaining technology is only suitable to a limited extent for shower heads with a jet disc that have a large number of jet outlet openings with comparatively small passage cross-sections, for example for shower heads that are designed to provide a so-called fine or needle jet as the shower jet type and have corresponding fine jet or needle jet openings as Have jet outlet openings. With such shower heads, high internal pressures can occur due to the supplied fluid, such as shower water, for example due to calcification effects, which results in increased demands on the holding force to be provided by the spray disk holding device. Usually, such fine-jet shower heads also have a significantly larger number of jet outlet openings than classic shower heads that are designed to provide a normal shower jet with a classic, larger individual jet diameter and accordingly with a larger passage cross section of the jet outlet openings. This increased number of jet outlet openings per unit area of the jet disk can result in the inherent stability or flexural rigidity of the jet disk decreasing.

In such cases, the sole centric attachment of the spray disc to the shower head body using a single screw often proves to be no longer ideal. The use of several fastening screws is also often not a desirable alternative. Screws are relatively expensive and their tightening torque must be observed precisely so that on the one hand the screws are sufficiently tight and unintentional loosening is avoided and on the other hand the corresponding screw openings do not break out.

The disclosure document DE 10 2013 224 053 A1 discloses a shower head of the type mentioned at the outset, in which the jet disc holding device has first, central holding means for fixing a central area of the jet disc on the base body and second, peripheral holding means for fixing a peripheral area of the jet disc on the base body, the first and second holding means being the same each can in particular be a bayonet mount, a screw mount or a clip mount.

The disclosure document DE 10 2015 224 107 A1 discloses a shower head of the generic type mentioned at the outset, in which the jet disc is formed by a jet disc assembly with a plurality of jet disc elements designed as hollow bodies, which can be individually attached to the base body in a detachable manner by a click mechanism, the click mechanism being designed to be pressurized in a direction in which the jet disc elements are attached and for this purpose, for each spray disk element, three rigid latching extensions, which are arranged on the rear side of the spray disk element, and three corresponding flexible latching arms on an underside of the base body of the shower head. The flexible latching arms can engage with latching lugs in latching spaces on the rigid latching extensions, with the latching arms springing away from the rigid latching extensions when the jet disc element moves again in the attachment direction, so that the latching lugs can move out of the latching spaces to release the connection.

the Offenlegungsschrift DE 37 26 788 A1 discloses a hand shower with a handle composed of two plastic half-shells and a shower head accommodated at a front end by the handle, which is formed by a multi-part valve structure, a valve insert being accommodated in one of the handle Valve housing is included and in the valve insert a shower and jet insert is screwed detachably with a jet disk. The two half-shells of the handle are connected to one another by a snap-in/locking connection, which consists of a pair of locking sleeves protruding perpendicularly to the parting plane of the shells from one half-shell and a pair of locking sleeves protruding opposite from the other half-shell coaxially with the locking sleeves and fitting into the locking sleeves locking pins.

The disclosure document U.S. 2008/0295242 A1 discloses a pivoting shower with a generic shower head, which has a spray disk structure with a guide plate, a cover plate and an end plate and a multi-part base body on which the spray disk structure is held by means of four screw connections distributed over the surface area of the spray disk structure.

The invention is based on the technical problem of providing a shower head of the type mentioned at the outset, in which the spray disk holding device can be manufactured with relatively little effort, allows relatively simple assembly of the spray disk on the shower head base body and/or an optimized holding functionality for the spray disk on the shower head -Basic body makes available, which is also well suited for shower heads from the fine jet type.

The invention solves this problem by providing a shower head with the features of claim 1 or 7. Advantageous developments of the invention are the subject matter of the dependent claims.

According to a first aspect of the invention, the jet disk holding device has a plurality of plug-in fastening pins and associated pin insertion openings, through which one of the plug-in fastening pins is inserted in each case. The respective pin insertion opening is formed on the jet disk holding area of the base body or on the jet disk. The plug-in mounting pins and the pin-holes are configured to snapably retain the plug-in mounting pins in the pin-holes. The spray disc holding device designed in this way can be manufactured with relatively little effort, and it makes attaching the jet disc to the shower head body quite simple, in that the jet disc only needs to be plugged into or plugged onto the shower head body using the jet disc holding device. In particular, no screws and no special tools are required for this.

With this spray disc holding device, the shower head can be designed with high pressure resistance if required, i.e. even a relatively high internal pressure in the shower head due to the fluid pressure of the fluid supplied to the shower head does not lead to function-impairing deformations or damage to the spray disc. The spray disc holding device specially designed in this way is able to withstand even such increased fluid pressure forces and to hold the spray disc sufficiently stable against deformation on the base body of the shower head even in those cases in which the spray disc itself does not have very high dimensional stability and/or a relatively has a large number or surface density of jet outlet openings, e.g. more than 100 and in particular more than 150 jet outlet openings at a maximum distance of one to five millimeters from one another.

In corresponding designs, the plug-in fastening pins and the associated pin insertion openings are located on at least two different radii and/or at at least two different circumferential angles in relation to a longitudinal central axis of the jet disk. In corresponding designs, the plug-in fastening pins and the pin insertion openings are distributed in this way over a surface area of the jet disk. A correspondingly uniform distribution of the holding force provided by the jet disk holding device can thus be achieved over the entire extent of the jet disk.

In a development of the invention, at least one of the pin insertion openings, preferably several and in advantageous embodiments all pin insertion openings, has a radially elastically flexible opening edge. With this, the pin through opening in question is able to yield radially elastically at its opening edge to the plug-in fastening pin to be inserted into the pin through-opening and, after the plug-in fastening pin has been pushed through, tighten it again radially elastically.

In a further development of the invention, at least one of the plug-in fastening pins, preferably several and in an advantageous embodiment all plug-in fastening pins, has a mushroom-shaped latching head which is designed to engage behind a latching edge of the associated pin insertion opening. In this way, the plug-in fastening pin in question, which can be inserted axially into the pin insertion opening in an insertion direction, can be secured against axially escaping from the pin insertion opening counter to the insertion direction. In addition, the mushroom shape of the latching head can make it easier to insert the plug-in fastening pin with its latching head through the pin insertion opening, in that the mushroom head forms a contact surface pressing against the latching edge of the pin insertion opening with its sloping or conical, cone-shaped lateral surface. This is particularly advantageous if, in corresponding embodiments, the latching edge is formed as a radially elastically flexible opening edge of the pin insertion opening. In this case, the mushroom-shaped latching head can expand the latching edge radially elastically when the plug-in fastening pin is pushed through, and after the latching head has passed through, the latching edge can contract radially elastically again and engage behind the latching head in a latching manner.

In one embodiment of the invention, at least one of the pin insertion openings, preferably several and in advantageous embodiments all of the pin insertion openings, is formed by a dome-shaped section of the jet disk holding area or of the jet disk. The holding dome-shaped section has a dome base area and a dome head area. The plug-in fastening pin can be inserted with its snap-in head from the dome base area into the retaining dome-shaped section. The Domkopfbereich includes a through hole, the edge of the hole forms the latching edge of the pin hole. This dome-shaped design of the section of the jet disk holding area or jet disk that forms the relevant pin insertion opening promotes the provision of a high holding force due to the advantageous force dissipation characteristics known per se for such dome shapes, particularly with regard to acting compressive forces. Such compressive forces can act on the retaining dome-shaped section when the pushed-through plug-in fastening pin is subjected to a tensile load due to fluid pressure in the shower head.

In one embodiment of the invention, an outer diameter of the holding dome-shaped section is larger at the dome base area than at the dome head area. This corresponds to the usual dome shape and promotes the achievement of a high resistance of the jet disc holding device to the acting fluid pressure.

In one embodiment of the invention, the holding dome-shaped section is designed to be slotted through one or more axial slots. This can promote the radially elastic resilience of the opening edge or latching edge of the relevant pin insertion opening. Depending on requirements, the respective axial slot can be designed to be axially continuous from a dome base area to a dome head area or closed axially on one or both sides.

In one embodiment of the invention, the at least one plug-in fastening pin, which has the mushroom-shaped latching head on its one axial end region, has a radially projecting retaining shoulder on its other axial end region facing away from the latching head. With this retaining shoulder, the plug-in fastening pin can interact with the jet disc or the jet disc holding area in a holding manner, while its mushroom-shaped locking head interacts with the associated pin insertion opening, which is located on the other of the two components, the jet disc holding area and the jet disc.

According to a second aspect of the invention provided as an alternative or in addition to the first aspect, the jet disk has a plurality of jet outlet openings which are in fluid communication with a common associated fluid supply chamber for synchronous fluid supply. The jet disc is in fluid-tight contact with the jet disc holding area of the base body at least in an area between two of these jet outlet openings, and the base body has a plurality of fluid ducts leading out of the common fluid supply chamber, of which a first fluid duct leads to one of the two jet outlet openings in question and a second fluid duct separate from the first fluid duct to the second of the two relevant jet outlet openings. In other words, these two jet outlet openings in each of possibly several types of spray jets of the shower head are always supplied together with fluid from the same fluid supply chamber, with this common fluid supply chamber not being in the Boundary area between the jet disc and the opposite jet disc holding area of the base body, but at a distance from this border area upstream of the same, for example on a side facing away from the jet disc of the jet disc holding area of the base body. The two jet outlet openings are coupled to this spaced-apart fluid supply chamber via the fluid ducts provided in the base body.

In the case of shower head designs that are designed for several jet types, in which the jet outlet openings are grouped into groups that are fed with fluid or not fed differently depending on the shower jet type, the shower head has, in a manner known per se, correspondingly several fluid supply chambers, e.g fluid supply chamber for a central group of jet orifices, a second fluid supply chamber for a peripheral group of jet orifices, and a third fluid supply chamber for an intermediate group of jet orifices. The above-mentioned characterization of the fluid-tight contact of the jet disk against the jet disk holding area of the base body applies in this case in particular to at least one area between two jet outlet openings, both of which are assigned to one of these several fluid supply chambers.

With this realization of the invention, it is consequently possible to separate at least two synchronously fluid-supplied jet outlet openings, which are preferably directly adjacent jet outlet openings, at the level of the border area between jet disc and jet disc holding area of the base body, i.e. to keep them fluid-separated from one another. It goes without saying that in the same way more than two jet outlet openings or several groups of one or more jet outlet openings can always be supplied with fluid synchronously, regardless of the type of shower spray, and can also be sealed off from one another at the level of the boundary area between the jet disc and the jet disc holding area of the base body.

This design avoids the presence of a fluid supply chamber or hollow chamber in the area between the jet disk and the jet disk holding area, so that it is avoided that a high fluid pressure can build up in this area.

Consequently, with this measure, the fluid pressure load on the jet disk can be kept low, even if a high fluid pressure should build up in the shower head. This high fluid pressure remains limited to an area of the shower head remote from the jet disc, e.g. The shower head base body, which is generally rigid or rigid in design, shields the spray disc from such high fluid pressures.

In an advantageous embodiment, the jet disc, as in the example shown, lies around each jet outlet opening or around groups of one or more of the jet outlet openings around the circumference in a closed, fluid-tight manner against the jet disc holding area of the base body, and the base body has a separate one for each jet outlet opening or each associated fluid supply chamber leading out fluid duct. In this case, the jet outlet openings are therefore completely sealed against one another individually or in groups at the level of the border area of jet disk and base body, so that there is no hollow chamber and accordingly no excess fluid pressure can build up.

In a development of the invention, the respective plug-in fastening pin is designed in one piece with the spray disk. This can be advantageous in terms of production technology and assembly technology. In this case, the plug-in fastening pin can be inserted into its associated pin insertion opening by attaching the jet disk to the jet disk holding area.

In an alternative development of the invention, the respective plug-in fastening pin is designed in one piece with the spray disk holding area. In this case, the jet disc has the associated pin insertion opening, into which the plug-in fastening pin protruding from the jet disc holding area reaches when the jet disc is attached to the jet disc holding area.

In a further alternative development of the invention, the respective plug-in fastening pin is designed as a component separate from the jet disk and the jet disk holding area. With this design, the plug-in mounting pin can be are materially decoupled from the jet disk and the jet disk holding area, ie consist of a different material than the jet disk and/or the jet disk holding area.

In a further development of the invention, the plug-in fastening pins and the associated pin insertion openings are located on at least two different radii and/or at at least two different circumferential angles in relation to a longitudinal central axis of the jet disk. As a result, the spray disc can be fixed at correspondingly different attachment points on the spray disc holding area. In advantageous embodiments, these attachment points are distributed essentially uniformly over the surface area of the jet disk. Alternatively, designs are possible in which the attachment points provided by the plug-in attachment pins are arranged more densely, i.e. at smaller distances from one another, in an area of the jet disk with a higher pressure load than in an area with a lower pressure load.

In corresponding developments of the invention, the jet disk holding area and/or the jet disk and/or the plug-in fastening pins is/are formed from a plastic material. This choice of material can be made appropriately depending on requirements and application. For example, all three components may be formed from the same or different plastic materials, or the jet disc and jet disc retaining portion may be formed from a plastic material while the male mounting pins are formed from a metal material.

In a further development of the invention, the jet disk has a rigid, perforated disk plate and a flexible blasting mat on a rear side of the disk plate facing the jet disk holding area, outlet nipples being formed on the blasting mat, which form the jet outlet openings and extend through nipple passage openings in the disk plate.

In a variant, the plug-in mounting pins co-operate in a retaining manner with the disk plate. The holding interaction of the plug-in fastening pins with the disc plate can be realized, for example, in that the disc plate has the pin passage openings with which the plug-in fastening pins interact via their locking head, or in that the plug-in fastening pins interact with the disk plate via their radially projecting retaining shoulder. In advantageous embodiments, the flexible jet mat also acts as a seal between the jet outlet openings in the area between the jet disk and the jet disk holding area of the base body.

In an additional or alternative variant, the jet disc with its jet mat lies flat against the jet disc holding area of the base body in a fluid-tight manner and delimits the jet outlet openings individually from one another in a fluid-tight manner. The jet mat thus also acts as a sealant, by which the inlet-side areas of the jet outlet openings in the boundary area between jet disc and jet disc holding area are kept individually fluid-separated from one another, whereby the build-up of an undesired excess fluid pressure in this border area can be reliably avoided.

Fig. 1

Eine Draufsicht von unten auf eine sanitäre Handbrause mit einem Brausekopf,

Fig. 2

eine Schnittansicht längs einer Linie II-II in Fig. 1,

Fig. 3

eine Draufsicht von unten, d.h. entgegen einer Brausestrahlaustrittsrichtung, auf einen Teil eines beispielsweise in der Handbrause der Fig. 1 und 2 verwendbaren Brausekopfs mit einem Grundkörper und einer Strahlscheibe,

Fig. 4

eine Schnittansicht längs einer Linie IV-IV in Fig. 3,

Fig. 5

eine Detailansicht eines Bereichs V in Fig. 4,

Fig. 6

eine Perspektivansicht von unten des Brausekopfteils der Fig. 3 bis 5,

Fig. 7

eine Draufsicht von oben auf eine Strahlscheibenplatte der Strahlscheibe des Brausekopfteils der Fig. 3 bis 6,

Fig. 8

eine Draufsicht von oben auf eine Strahlmatte der Strahlscheibe für den Brausekopf gemäß den Fig. 3 bis 6 und

Fig. 9

eine Draufsicht von oben auf einen Grundkörper eines Brausekopf-Grundkörpers der Fig. 3 bis 6.

Advantageous embodiments of the invention are shown in the drawings. These and other advantageous embodiments of the invention are explained in more detail below. Here show:

1

A bottom plan view of a sanitary hand shower with a shower head,

2

a sectional view taken along a line II-II in 1 ,

3

a plan view from below, ie against a shower jet exit direction, on a part of, for example, in the hand shower Figures 1 and 2 usable shower head with a base body and a jet disc,

4

a sectional view taken along a line IV-IV in 3 ,

figure 5

a detailed view of a region V in 4 ,

6

a perspective view from below of the shower head part Figures 3 to 5 ,

7

a plan view from above of a jet disc plate of the jet disc of the shower head part Figures 3 to 6 ,

8

a plan view from above of a jet mat of the jet disk for the shower head according to FIG Figures 3 to 6 and

9

a top view of a body of a shower head body of Figures 3 to 6 .

The in the Figures 1 and 2 The sanitary hand shower shown has a hand shower housing 20 of a conventional shape with a hollow handle part 21 and a housing head part 22 . A shower fluid is supplied in the usual way via the hollow handle part 21, for example by connecting it to a shower hose. The housing head part 22 forms a shower head 23 together with other shower head components accommodated therein. In a manner known per se, the hand shower in the embodiment shown is set up to provide several types of jets, for which purpose the shower head 23 is designed with multiple channels, i.e. has several fluid ducts 26 parallel in terms of flow. which is preceded by a distribution valve 24 which can be actuated by the user via an operating element, in this case, for example via a push button 25.

the Figures 3 to 9 illustrate the presently interesting components of a shower head, as in the hand shower Figures 1 and 2 , alternatively can be used for any other shower, eg for sanitary side showers and overhead showers as well as for non-sanitary showers with which water or another fluid can be provided as a shower jet.

The in the Figures 3 to 9 and in use in the hand shower Figures 1 and 2 The shower head illustrated includes a base body 1, a jet disk 2 and a jet disk holding device 3. The jet disk 2 is held on a shower jet outlet side 4 of the base body 1 and has at least one jet outlet opening 7. In the example shown, a plurality of jet outlet openings 7 is provided, with the number of jet outlet openings 7 depending on the application. For example, to provide a surge jet, there is usually only a single jet outlet opening 7, for large-area jet discs 2 and/or for shower heads of the fine/needle jet type, there are often more than 100 or even more than 150 jet outlet openings, typically with a mutual spacing of at most 1mm to 5mm. The jet disk holding device 3 is used to hold the jet disk 2 on a jet disk holding area 8 of the base body 1.

The jet disk holding device 3 comprises a plurality of plug-in fastening pins 5 and a corresponding plurality of associated pin insertion openings 6, through which one of the plug-in fastening pins 5 is inserted. The respective pin through opening 6 is in the Figures 3 to 9 shown embodiment of the shower head on the jet disc holding area 8 of the base body 1 is formed. In alternative versions, the respective pin insertion opening 6 is formed on the jet disc 2 . The plug-in fastening pins 5 and the pin-through openings 6 are designed to hold the plug-in fastening pins 5 in the pin through-openings 6 in a locked manner.

In corresponding embodiments of the shower head, at least one of the pin insertion openings 6 has a radially elastically flexible opening edge 9 . In the example shown, all the pin insertion openings 6 have the radially elastically flexible opening edge 9 . In alternative embodiments, none or only part of the pin insertion openings 6 has the radially elastically flexible opening edge 9 and instead has a non-radially elastically flexible opening edge with which, for example, an elastically flexible area of the respective plug-in fastening pin 5 can then interact.

In corresponding embodiments, as in the example shown, at least one of the plug-in fastening pins 5 has a mushroom-shaped latching head 5a, which is designed to engage behind a latching edge 9a of the associated pin insertion opening 9 in a latched manner. In the example shown, all the plug-in fastening pins 5 have the mushroom-shaped latching head 5a; in alternative embodiments, none or only some of the plug-in fastening pins 5 have the mushroom-shaped latching head 5a. In this case, the respective plug-in fastening pin is retained in a latched manner in the associated pin insertion opening by means of another latching connection, which is known per se.

In advantageous embodiments, as in the exemplary embodiment shown, at least one of the pin insertion openings 6 is formed by a dome-shaped section 10 of the jet disk holding area 8 or the jet disk 2, with the dome-shaped section 10 having a dome bottom region 10a, from which the associated plug-in fastening pin 5 with its latching head 5a is axially in front the holding dome-shaped section 10 can be inserted, and has a dome head area 10b, which contains a through-hole 11, the bore edge of which forms the latching edge 9a of the pin through-opening 9. In the example shown, each pin insertion opening 6 is formed by a respective dome-shaped section 10 of the jet disk holding area 8 of the base body 1. In alternative embodiments, none or only part of the pin insertion openings 6 are formed by such a dome-shaped section, instead, for example, by a mere bore in a plate-shaped one Section of the jet disc holding area, or at least one of the pin insertion openings 6 is formed by a holding dome-shaped section 10 of the jet disc 2 instead of the jet disc holding area 8 .

In corresponding designs, as in the exemplary embodiment shown, the outer diameter of the holding dome-shaped section 10 is larger on the dome base area 10a than on the dome head area 10b; in alternative designs, these diameters can also be the same, for example. In corresponding designs, the respective holding dome-shaped section 10 is unilateral or slotted continuously on both sides or axially closed on both sides or alternatively completely closed on the shell side.

In corresponding embodiments, as in the example shown, the at least one plug-in fastening pin 5 has a radially protruding retaining shoulder 5b on its end region facing away from the mushroom-shaped latching head 5a. In the example shown, all plug-in fastening pins 5 have this retaining shoulder 5b; in alternative embodiments, none or only some of the plug-in fastening pins 5 have this holding shoulder 5b. Instead of the retaining shoulder 5b, the plug-in fastening pin 5 in question can have another conventional retaining means, through which it interacts with the jet disk 2 or, in alternative embodiments, with the jet disk holding area 8 of the base body 1, eg latching lugs or a non-positive holding means.

In corresponding embodiments, as in the example shown, the jet disc 2 has a plurality of jet outlet openings 7, which are jointly in fluid communication with an associated fluid supply chamber 12, with the jet disc 2 being fluid-tight against the jet disc holding area at least in a region 2a between two 7a, 7b of these jet outlet openings 7 8 of the base body 1 and the base body 1 has a plurality of fluid guide channels 13 leading out of the common fluid supply chamber 12, of which a first 13a leads to one 7a of the two jet outlet openings 7a, 7b concerned and a second 13b separate from the first 13a to the other 7b of the two concerned Jet exit openings 7a, 7b leads.

In an advantageous embodiment, the jet disc 2 is in fluid-tight contact with the jet disc holding area 8 of the base body 1 around the circumference of each jet outlet opening 7, and the base body 1 has a separate fluid duct 13 leading out of the associated fluid supply chamber 12 for each jet outlet opening 7. In this case, the jet outlet openings 7 are completely sealed off from one another at the level of the border region of jet disc 2 and base body 1, so that there is no hollow chamber and accordingly no excess fluid pressure can build up. Such excess fluid pressure can at best build up in the upstream fluid supply chamber 12, where it can be easily absorbed by the base body 1 due to its comparatively stable construction.

In alternative embodiments, the jet disk 2 rests against the jet disk holding area 8 of the base body 1 in such a way that each jet outlet opening 7 is not individually fluid-tightly separated from the other jet outlet openings 7, but rather the jet outlet openings 7 are fluid-separated in groups. In this case, the jet outlet openings 7 are divided into groups, with at least one group comprising two or more jet outlet openings 7 and these jet outlet openings 7 of the same group are not fluid-separated from one another at the level of the boundary region between jet disc 2 and base body 1, but are fluid-separated from all other jet outlet openings 7 . At least two such groups of jet outlet openings 7 are those whose jet outlet openings 7 belong to the same shower jet type of the shower head, ie synchronously in all shower jet types are supplied or not supplied with the shower fluid from the same one of, in this case, typically several fluid supply chambers 12 .

In corresponding embodiments, the respective plug-in fastening pin 5 is designed as a separate component from the jet disk 2 and the jet disk holding area 8 of the base body 1, as in the example shown. In alternative embodiments, the respective plug-in fastening pin 5 is formed in one piece with the jet disk 2 or in one piece with the jet disk holding area 8 of the base body 1 .

In corresponding embodiments, the plug-in fastening pins 5 and the associated pin insertion openings 6 are located on at least two different radii and/or at at least two different circumferential angles in relation to a longitudinal central axis L of the jet disc. In other words, the plug-in fastening pins 5 and the associated pin insertion openings 6 are in this case at fastening points which are at different distances from the longitudinal center axis L of the jet disc and/or are offset from one another in the direction of rotation around the longitudinal center axis L of the jet disc. Preferably, these attachment points are distributed essentially uniformly over the surface area of the jet disc 2 . This generally promotes a uniform absorption of the fluid pressure forces by the jet disk holding device 3. In alternative embodiments, the fastening points are all arranged on a common radius with respect to the longitudinal central axis L of the jet disk, or they are all arranged at the same circumferential angle.

In advantageous embodiments, the jet disk holding area 8 of the base body 1, the jet disk 2 and the plug-in fastening pins 5 are all formed from a common or alternatively from different plastic materials. In further alternative embodiments, the male mounting pins 5 are formed from a metal material. In yet further alternative embodiments, the jet disk 2 and/or the jet disk holding area 8 is formed from a metal material.

In an advantageous embodiment, the jet disc 2 comprises, as in the example shown, a rigid, perforated disc plate 14 and a flexible jet mat 15, with the jet mat 15 being attached to one of the jet disc holding area 8 of the base body 1 facing rear of the disc plate 14 is arranged. 7 14 shows the disk plate 14 in a plan view from above, ie in a plan view of the upstream, rear side in the shower fluid flow direction. Outlet nipples 16 are formed on the front side of the blasting mat 15 , which form the blasting outlet openings 7 and extend through nipple passage openings 17 in the disc plate 14 . 8 shows the blasting mat 15 also in a plan view from above. You can in this position on the disc plate 14 of 7 are placed, with their outlet nipples 16 being pushed through the nipple passage openings 17 in the disk plate 14 .

Preferably, the male mounting pins 5 engage the disk plate 14 in a retaining manner. In the example shown, this is realized in that the disk plate 14 has pin-receiving depressions 14a, against which the plug-in fastening pins 5 come to rest with their holding shoulder 5b. In alternative embodiments, the plug-in fastening pins 5 interact with the disc plate 14 in a different manner, e.g. by being formed in one piece with it or by being pressed into the disc plate 14 or by their mushroom-shaped latching head 5a interacting with the retaining dome-shaped sections 10, the latter are then formed on the disk plate 14.

The blasting mat 15 is preferably made of an elastomeric material and is provided with pin through-holes 19 through which the plug-in fastening pins 5 are passed. The blasting mat 15 preferably acts as a sealing means with which the fluid-tight contact of the blasting disc 2 against the blasting disc holding area 8 of the base body 1 can be brought about in the area or areas 2a between the jet outlet openings 7 or outlet nipples 16 .

In advantageous embodiments, as in the exemplary embodiment shown, the base body 1 and the jet disc 2 form a cartridge body 18 as an independent component, as in FIGS Figures 3 to 6 shown. The cartridge body 18 forms in particular a component that can be preassembled separately from an outer housing of the shower head or from the housing head part 22 and then inserted into the outer housing of the shower head.

In the exemplary embodiment shown, the base body 1 contains two plate-shaped components which are connected to one another to form the intermediate fluid supply chambers 12, namely a jet disk holding plate 1a providing the jet disk holding area 8 on the underside and a cover plate 1b. The jet disk holding plate 1a simultaneously acts as a distribution plate for distributing the supplied shower fluid into the optionally several aerodynamically parallel fluid supply lines 26 or individual chambers, i.e. into the several fluid supply chambers 12, and from there into the fluid ducts 13 leading to the jet outlet openings 7. For this purpose, the jet disk holding plate 1a or On the upstream side of the distribution plate facing away from the jet disc holding side, a suitable distribution structure profiling, as shown in FIG 9 can be seen, which shows a top view of this side of the jet disk holding plate 1a or distribution plate.

As the above description makes clear, the invention provides an advantageous shower head which can be built compactly and very fluid pressure-resistant with relatively little effort. Even if excess fluid pressure occurs in the shower head, for example due to calcification effects, this does not lead to impairment or damage to the shower head parts. The jet disk with its jet outlet openings can remain relieved of such excess fluid pressures. The shower head according to the invention can, for example, easily withstand excess fluid pressures of up to 5 bar or even up to 10 bar. The jet disc attachment using the plug-in attachment pins is less complex, less susceptible to damage, significantly more space-saving and more secure against unintentional loosening of the attachment compared to the use of screw attachments. The shower head according to the invention can be realized with relatively few components, and when using the mentioned cartridge design it is possible, if necessary, to produce the cartridge body exclusively from plastic material. No screwing operations are required to assemble the shower head and, for example, the cartridge body. The plug-in fastening pins can be designed in such a way that they are primarily only subject to tensile stress, while the surrounding components, such as the retaining dome-shaped sections, are subject to compressive stress. The compressive load on the retaining dome-shaped sections can also secure against the plug-in fastening pins accidentally slipping out of their pin insertion openings.

As already mentioned, the shower head according to the invention can be used in a variety of ways for sanitary and non-sanitary showers.

Claims (10)

1. Shower head, comprising

   - a base body (1),

   - a jet disk (2) held on a shower jet discharge side (4) of the base body and including at least one jet discharge opening (7), and

   - a jet disk holding device (3) for holding the jet disk on a jet disk holding region (8) of the base body,

   characterized in that

   - the jet disk holding device (3) comprises a plurality of plug connector pins (5) and associated pin through-passage openings (6), through which a respective one of the plug connector pins is passed, wherein the respective pin through-passage opening is provided on the jet disk holding region (8) of the base body or on the jet disk (2), and wherein the plug connector pins and the pin through-passage openings are configured for latched retaining of the plug connector pins in the pin through-passage openings.
2. Shower head according to claim 1, further characterized in that at least one of the pin through-passage openings comprises a radially elastically resilient opening edge (9).
3. Shower head according to claim 1 or 2, further characterized in that at least one of the plug connector pins has a mushroom-shaped latching head (5a) which is configured for latching engagement behind by a latching edge (9a) of the associated pin through-passage opening.
4. Shower head according to claim 3, further characterized in that at least one of the pin through-passage openings is provided by a holding dome-shaped section (10) of the jet disk holding region or the jet disk, wherein the holding dome-shaped section comprises a dome bottom region (10a), from where the associated plug connector pin, with its latching head in front, is insertable axially into the holding dome-shaped section, and a dome head region (10b) which includes a through-passage hole (11), with the hole edge thereof providing the latching edge of the pin through-passage opening.
5. Shower head according to claim 4, further characterized in that

   - an outer diameter of the holding dome-shaped section is greater in the dome bottom region than in the dome head region, and/or

   - the holding dome-shaped section has a slotted design formed by one or more axial slots.
6. Shower head according to any one of claims 3 to 5, further characterized in that the at least one plug connector pin, with the mushroom-shaped latching head on its end region facing away from the latching head, comprises a radially projecting holding shoulder (5b).
7. Shower head, preferably according to any one of claims 1 to 6, comprising

   - a base body (1),

   - a jet disk (2) held on a shower jet discharge side (4) of the base body and including at least one jet discharge opening (7), and

   - a jet disk holding device (3) for holding the jet disk on a jet disk holding region (8) of the base body,

   characterized in that

   - the jet disk comprises a plurality of the jet discharge openings (7) which are in fluid communication with a common associated fluid supply chamber (12) for synchronized fluid supply, and

   - the jet disk, at least in a region (2a) between two (7a, 7b) of said jet discharge openings, abuts in a fluid-tight manner against the jet disk holding region (8) of the base body (1), and the base body comprises a plurality of fluid feed ducts (13) leading out of the common fluid supply chamber, among said fluid feed ducts a first one (13a) leads to one (7a) of the two corresponding jet discharge openings and a second one (13b), separate from the first one, leads to the second one (7b) of the two corresponding jet discharge openings.
8. Shower head according to any one of claims 1 to 6, further characterized in that

   - the respective plug connector pin is formed integrally with the jet disk or integrally with the jet disk holding region or as a component separate from the jet disk and the jet disk holding region, and/or

   - the plug connector pins and the associated pin through-passage openings are located in relation to a central longitudinal axis (L) of the jet disk on at least two different radii and/or on at least two different circumferential angles.
9. Shower head according to any one of claims 1 to 8, further characterized in that the jet disk holding region and/or the jet disk and/or the plug connector pins are/is made of a plastic material.
10. Shower head according to any one of claims 1 to 9, further characterized in that

    - the jet disk includes a bending resistant, perforated jet disk plate (14) and a bending flexible jet mat (15) on a rear side of the disk plate facing towards the jet disk holding region,

    - wherein discharge nipples (16) are provided on the jet mat, which form the jet discharge openings and extend across nipple through-passage openings (17) in the disk plate, and

    - wherein the plug connector pins interact with the disk plate retentively and/or the jet disk with its jet mat abuts flatly in a fluid-tight manner against the jet disk holding region (8) of the base body (1) and delimit the jet discharge openings individually against each other in a fluid-tight manner.

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