EP3327208B1 - Sanitary outlet unit - Google Patents

Description

The invention relates to a sanitary outlet unit, which can be mounted on the water outlet of a sanitary outlet fitting, with a sleeve-shaped and one-part or multi-part outlet mouthpiece which has a thread or similar fastening means for fastening to a mating thread or similar counter means on the water outlet of the sanitary outlet fitting, and with at least a sanitary insert part which can be inserted into the outlet mouthpiece from an upstream sleeve opening until the at least one insert part rests on a support on the inner circumference of the sleeve of the outlet mouthpiece, the outflow end edge of the outlet mouthpiece being arranged in the flow direction at a distance from the outlet end face of the sanitary insert part wherein the clear sleeve cross-section of the outlet mouthpiece is greater than the clear outlet cross-section of the one, at least in the partial area following the outlet end face of the insert part in the flow direction power supply and its insert housing.

It is assumed that around 80,000 people in hospitals around the world are infected with nosocomial germs every day and that this results in around 30,000 to 40,000 deaths each year. The most common infections occur through contact with infected objects or through inhalation of the contaminated ambient air. In hospitals, efforts are therefore made to reduce the risk of infection by regularly cleaning all objects and at least wiping these objects with a disinfectant. In addition, copper-containing materials are already being used that are used on door handles, light switches or taps.

In order to shape the water flowing out of a sanitary outlet fitting into a homogeneous, non-splashing water jet, sanitary outlet units of the type mentioned at the beginning have already been created. The known outlet units have a sanitary insert, which is usually designed as an insert cartridge. The insert, designed as an insert cartridge, can comprise a jet-shaping jet regulator, which is preceded by an attachment or filter screen on the inflow side, which has to filter out the lime and dirt particles entrained in the water before they impair the function of the jet regulator. A flow rate regulator can be interposed between the attachment or filter screen and the jet regulator, which has to regulate the amount of water flowing out per unit of time to a specified maximum value independently of pressure. The insert consisting of the jet regulator, the strainer and possibly the flow rate regulator is inserted into a sleeve-shaped outlet mouthpiece which can be fastened with a thread on a mating thread on the water outlet of the sanitary outlet fitting.

In a hospital, the hand wash basins and the associated outlet fittings are also used and regularly wiped with a cleaning cloth. When using and wiping the outlet fittings, however, there is a risk that these components will become contaminated and that such germs will be transmitted through contact with the fitting.

From the DE 10 2006 025 301 A1 a sanitary outlet unit of the type mentioned is already known, which has an adapter part that can be mounted on the water outlet of a sanitary outlet fitting and an insert part that can be connected and disconnected to the adapter part via a quick-release fastener without tools. In the insert is a jet regulator trained sanitary insert can be used.

This document does not disclose any superficial antibacterial effect of the outlet unit or any of its components.

In the US 2016/0317987 A1 an air bubble generator for a shower head has already been described above, which has a housing, in the interior of which a bubble-generating means is provided. In order to be able to interconnect the known air bubble generator in a water pipe, a connection thread is provided at the opposite end of the housing, the inflow side first connection thread being connected to an upstream water pipe section and the outflow side second connection thread to a downstream water pipe section leading to the shower head. In order to be able to interconnect the known air bubble generator in the water line, which regularly consists of copper or plastic pipes, the housing of the known air bubble generator can also consist of copper or plastic. A preference for a housing made of copper or a desired antibacterial effect of the material used is indicated in the US 2016/0317987 A1 not addressed.

From the DE 87 17 325 U1 a sanitary outlet unit is already known, which is designed as a jet regulator and can be mounted on the water outlet of a sanitary outlet fitting. For this purpose, the known outlet unit has a sleeve-shaped outlet mouthpiece which has an external thread for fastening to a mating thread on the water outlet of the outlet fitting. In the outlet mouthpiece can be inserted from its sleeve opening on the upstream side, which insert parts rest on an annular shoulder serving as a support on the inner circumference of the sleeve of the outlet mouthpiece. In order to prevent the germs carried in the ambient air from penetrating and to counteract the resulting contamination of the flowing water, the known outlet unit has a bacterial filter through which the air entering the known outlet unit must pass. This bacterial filter has a pore size that is selected so small that the filter acts as a bacterial filter. In order to counteract the penetration of bacteria via the outlet face of the known outlet unit, a metal sieve with an antibacterial coating made of silver can be provided on this outlet face. However, this measure can at most prevent the penetration of germs via the ambient air and does not counteract any impairment of the previously known outlet unit by germs that a user causes by manually acting on the outlet unit.

From the US 2002/059677 A1 an outlet unit is already known which consists of an outflow-side unventilated jet regulator, an inflow-side attachment screen and a flow rate regulator arranged in between and connecting the individual parts of the outlet unit to one another. In order to counteract contamination of the flowing water, the individual parts of the known outlet unit are made of a plastic material which contains antibacterial components. The disadvantage of this known outlet unit is that the manufacture of this outlet unit from a plastic material with an antibacterial effect means a considerable amount of additional work.

There is therefore the particular task of a sanitary outlet unit of the type mentioned at the beginning, which also meets high hygienic requirements, such as those that are also made in a hospital, for example.

The inventive solution to this problem consists in the sanitary outlet unit of the type mentioned in that the outlet unit has an antibacterial surface at least in a downstream part of the outlet mouthpiece, and that the distance between the outlet end face and the outlet end edge is more than 5 mm.

The outlet unit according to the invention has at least one sanitary insert with which the emerging water can be shaped, regulated and / or limited in its outlet quantity. This at least one sanitary insert part is mounted on a water outlet of a sanitary outlet fitting by means of a one-part or multi-part outlet mouthpiece. For this purpose, the outlet mouthpiece has a thread or similar fastening means, which can be fastened to a mating thread or similar counter means on the water outlet of a sanitary outlet fitting. The at least one insert part can be inserted into this sleeve-shaped outlet mouthpiece from the inflow side until the at least one insert part rests on a support on the inner circumference of the sleeve of the outlet mouthpiece. In order to prevent contamination of the outlet unit and to kill germs that get onto the outlet unit, the above-described proposal according to the invention provides that the outlet unit has an antibacterial surface at least in a partial area of the outlet mouthpiece on the downstream side.

Furthermore, it is provided in the outlet unit according to the invention that the distance between the outlet end face and the outlet end edge measures more than 5 mm, and that the clear sleeve cross section of the outlet mouthpiece is greater than the clear outlet cross section of the insert part, at least in the partial area following the outlet end face of the insert in the flow direction and its insert housing. In the case of the outlet unit according to the invention, the outlet end edge of the outlet mouthpiece on the outflow side is arranged at a distance from the outlet end face of the sanitary insert part in the flow direction so that a user can neither purposefully nor unintentionally touch and germinate the sanitary insert part, which is protected in the outlet mouthpiece. The distance between the outlet end face and the outlet end edge measures more than 5 mm. So that the water jet flowing out of the insert part, which is protected in the outlet mouthpiece, cannot be contaminated with germs at the outlet end of the outlet mouthpiece, this proposal according to the invention also provides that the clear sleeve cross-section of the outlet mouthpiece is larger at least in the partial area following the outlet face of the insert part in the flow direction is. The above-described proposal according to the invention provides that the outlet unit has an antibacterial surface at least in a partial area of the outlet mouthpiece on the downstream side. The outlet mouthpiece in particular is exposed to access by the user and thus to contamination. A superficial contamination of this outlet mouthpiece, in particular through contamination, is effectively counteracted if the outlet mouthpiece in any case has an antibacterial surface in its partial area on the downstream side. Furthermore, it is provided that the clear sleeve cross-section of the outlet mouthpiece at least in that of the outlet end face of the insert part in Sub-area following the flow direction is larger than the clear outlet cross-section of the insert and its insert housing.

An infection of the user can also occur in that contaminated water droplets attached to the water outlet are carried away or contaminated water is inhaled as an aerosol. A particularly advantageous embodiment according to the invention therefore provides that the at least one insert part is designed as an insert element or has at least one insert element which has a hole structure with through-flow holes. With the aid of such a hole structure in the at least one insert element, the water flowing through can be shaped and the exiting water can be made more uniform, and undesired droplet formation in the ambient air can be effectively counteracted.

A preferred embodiment according to the invention provides that at least one of the insert elements has a lattice, mesh or honeycomb hole structure.

In order to be able to manufacture at least one of the insert elements inexpensively as a plastic part and in particular as a plastic injection-molded part, it is useful if the grid or net structure is formed from flocks of webs crossing each other at intersections, which webs delimit the flow holes between them.

The at least one insert element having a hole structure can be inserted particularly easily and securely into the at least one insert part or directly into the outlet mouthpiece if the hole structure of the at least one insert element is bordered on the outer circumference by a ring.

A preferred further development according to the invention provides that at least two insert elements are provided which are spaced apart in the flow direction, of which at least one insert element is designed as a jet splitter separating the water jet into individual jets and an outflow-side insert part which merges the individual jets into a homogeneous outlet jet.

A preferred development according to the invention provides that the sanitary insert is designed as a preferably unventilated jet regulator or as a jet shaper or has a preferably unventilated jet regulator or jet shaper. While the jet shaper can limit itself to equalizing the water jet flowing out of the sanitary outlet fitting, the emerging water can be shaped into a homogeneous and non-splashing water jet with the help of a jet regulator. In order not to contaminate the leaking water with any germs in the ambient air, it is useful if the aerator is designed as a non-ventilated aerator and if this aerator does not have to enrich the flowing water with ambient air.

The assembly and handling of the sanitary outlet unit according to the invention is significantly simplified if the sanitary insert part has an insert housing which has an antibacterial housing surface on the inside and / or outside at least in a partial area. If the sanitary insert part has an insert housing which has an antibacterial housing surface at least in a partial area, undesired superficial contamination of the insert housing is prevented.

A preferred embodiment that is particularly simple and can be produced inexpensively, provides that the sanitary insert or at least its insert housing consists of at least one plastic part and in particular at least one plastic injection-molded part.

It can be advantageous if the insert or its insert housing has an antibacterial surface coating in the area of the antibacterial surface. Thus, the insert housing of the insert part used can be provided with an antibacterial surface coating on the inside of the housing and additionally or instead on the outside of the housing.

An embodiment is preferred in which the one-part or multi-part insert housing of the sanitary insert part consists of plastic parts and, in particular, of plastic injection-molded parts with an uncoated plastic surface. Such a plastic surface prevents limescale from adhering, so that a superficial layer of limescale is avoided, which could otherwise be more susceptible to contamination due to its rough surface.

A preferred embodiment according to the invention provides that the outlet mouthpiece is made of a material with antibacterial material properties in the area of its antibacterial surface.

The antibacterial properties aimed for in the context of the present invention can be brought about through the use of silver, also in the form of a silver alloy or a superficial silver layer. However, it has been shown that compared to silver or even just a silver layer, copper is characterized by a significantly improved antibacterial effect. A preferred embodiment according to the invention therefore provides that the The outlet mouthpiece is made of copper or a copper alloy in the area of its antibacterial surface, with a copper alloy optionally having a copper content of at least 65% and in particular of at least 76%.

In order to be able to possibly also restrict the use of the expensive copper material, it can be advantageous if the outlet end region of the outlet mouthpiece on the downstream side is formed by a copper ring sleeve. For example, the outlet mouthpiece can have a sleeve-shaped element made of plastic or another material, to which a copper ring sleeve is attached on the outlet side.

So that a user can neither purposefully nor unintentionally touch and germinate the sanitary insert that is protected in the outlet mouthpiece, it is expedient that the outlet end edge of the outlet mouthpiece is arranged at a distance from the outlet end face of the sanitary insert in the flow direction.

The distance between the outlet end face of the sanitary insert on the one hand and the outlet end edge of the outlet mouthpiece on the other hand should be significant.

For this purpose, an embodiment according to the invention provides that the distance between the outlet end face and the outlet end edge measures more than 10 mm and in particular more than 14 mm.

In addition or instead, it can be advantageous if the distance between the outlet end face and the outlet end edge is more than a quarter and preferably more than a third of the longitudinal extension of the insert part in the direction of flow measures.

In this context, an embodiment is preferred in which the distance between the outlet end face and the outlet end edge measures more than half the clear diameter of the insert part.

So that the lime and dirt particles possibly entrained in the inflowing water cannot impair the function of the jet shaper or jet limiter used in the outlet unit according to the invention, it is advantageous if the jet regulator or jet shaper of the insert part is preferably detachably connected to an upstream attachment or filter screen.

In order to reduce water consumption, it can be advantageous if the jet regulator or jet former of the insert part is preceded by a flow rate regulator or flow limiter on the inflow side. If the sanitary insert also has an attachment or filter screen, it is useful if the flow limiter or flow rate regulator is arranged between the jet regulator or jet shaper on the one hand and the attachment or filter screen on the other.

Here, a flow limiter is understood to mean a throttle which reduces the clear flow cross-section in the area of the sanitary insert. A flow rate regulator, on the other hand, has a preferably annular flow gap, which has a control profile on a wall delimiting the flow gap on the inside and / or outside, between which and an elastic throttle body a control gap is limited, which control gap is deformed under the pressure of the water flowing through in such a way that the amount of water flowing through per unit of time does not exceed a specified maximum value.

So that the accessible outside of the outlet mouthpiece is hydraulically separated from its inside and thus uncontaminated water droplets can settle on the outlet-side end edge of the outlet mouthpiece, it is advantageous if the outlet mouthpiece has an annular groove that is open on its outflow-side outlet end edge against the flow direction.

In general, it is favorable if the antibacterial surface is formed at least on a surface area accessible from the outside. Bacterial entry from the outside through unintentional or unauthorized contact, for example during external cleaning, can thus be reduced or even avoided. For example, it can be provided here that the surface area accessible from the outside is a surface area spaced apart from the water jet in use.

Developments according to the invention emerge from the claims in connection with the figures and the drawing. A preferred embodiment is described in more detail below with reference to the drawing.

It shows:

Fig. 1

a sanitary outlet unit which has a sanitary insert part designed as an insert cartridge, which can be mounted by means of a sleeve-shaped outlet mouthpiece on the water outlet of a sanitary outlet fitting not shown here, the outlet-side end edge of the outlet fitting on the one hand and the adjacent peripheral edge of the outlet unit on the other hand being sealed by means of a sealing ring,

Fig. 2

the sanitary outlet unit consisting of the insert part designed as a sanitary insert cartridge and the sleeve-shaped outlet mouthpiece Figure 1 in a partial longitudinal section,

Fig. 3

the sanitary outlet unit from the Figures 1 and 2 in a plan view of the outlet end face, and

Fig. 4

the sanitary outlet unit from the Figures 1 to 3 in a perspective oblique view with a view in the direction of the outlet-side end face of this outlet unit.

In the Figures 1 to 4 a sanitary outlet unit 1 is shown, which can be mounted on the water outlet of a sanitary outlet fitting and is intended to form a homogeneous and non-splashing water jet there. The outlet unit 1 has a sleeve-shaped outlet mouthpiece 2 with a thread 3 or similar fastening means, which can be fastened to a mating thread or similar counter-means on the water outlet of the sanitary outlet fitting.

In the sleeve-shaped outlet mouthpiece 2, which can be formed in several parts or - as here - in one piece, at least one sanitary insert can be inserted from the inlet-side sleeve opening 4 of the outlet mouthpiece 2. This at least one insert part can be designed as an insert element which has a hole structure with throughflow holes.

In contrast, the insert part shown here has an insert housing 5 designed as an insert cartridge, in the housing interior of which a plurality of insert elements 6, 7 and 8 are provided, each of which has a hole structure. In order to prevent contamination of the outlet unit 1 and to kill germs that reach the outlet unit 1, the outlet unit 1 has an antibacterial surface at least in a partial area of the outlet mouthpiece 2 and / or the insert part.

As in the partial longitudinal section in Figure 2 As can be seen, the sanitary insert here has a jet regulator 9 which forms the water flowing through it into a homogeneous and non-splashing water jet. So that the outflowing water is not contaminated with the germs in the ambient air, the jet regulator is designed here as an unventilated jet regulator 9. The jet regulator 9 has a cup-shaped first insert element 6, which acts as a jet splitter serves and has a central impact surface 10 which is delimited by a peripheral wall 11. So that the first insert element 6 has a hole structure, flow holes spaced from one another in the circumferential direction are provided in the circumferential wall 11. The inflowing water first hits the impact surface 10 and is deflected from there radially outward to the flow holes in the peripheral wall 11 in order to flow from there as individual jets through the subsequent hole structures of further insert elements.

The insert housing 5 of the sanitary insert part is also designed here as a second insert element, the outflow-side outlet end face 13 of which is formed by a honeycomb-shaped hole structure, which offers the water the lowest possible hydraulic resistance and has the flow holes that turn the water swirled inside the housing into a homogeneously flowing water jet to shape.

Between this honeycomb-shaped hole structure on the outlet end face 13 of the insert housing 5 and the first insert element 6 serving as a jet splitter, further, third insert elements 7, 8 are inserted into the insert housing 5, which here have a grid-like or net-shaped hole structure made up of flocks of webs crossing each other at intersections , which also limit flow holes between them. These third insert elements 7, 8 are intended to swirl the water flowing through the interior of the insert housing 5 and slow it down in such a way that a soft water jet is created.

It is possible for the sanitary insert part to have an antibacterial housing surface on its insert housing, at least in a partial area. In the embodiment shown here, however, the insert housing 5 and the insert elements 6, 7 and 8 are made as plastic injection molded parts and each have uncoated plastic surfaces that prevent the build-up of a superficial layer of lime from the lime that may be carried along in the water.

Instead, in the embodiment shown here, the outlet mouthpiece 2 has an antibacterial surface at least in its partial area on the outflow side. For this purpose, the outlet mouthpiece 2 is produced in the area of its antibacterial surface and preferably entirely from a material with antibacterial material properties. An embodiment is preferred in which the one-piece outlet mouthpiece is made of copper or a copper alloy, which is characterized by particularly good germicidal material properties. If a copper alloy is used, it should have a copper content of at least 65% and preferably of at least 76%.

The outlet mouthpiece 2 shown here also has a germicidal copper surface on its outer circumference. This copper surface on the outer circumference of the outlet mouthpiece 2 differs significantly from the mostly chrome-plated surface of the sanitary outlet fitting and thus signals to the users the presence of an outlet unit according to the invention with its germicidal properties.

The copper surface on the outer circumference of the outlet mouthpiece tarnishes over time and signals to the users that it may be necessary to replace the outlet unit or at least some of its components or even just to sterilize the outlet unit and its components.

From the longitudinal section in Figure 2 and from the perspective view in Figure 4 it becomes clear that the outflow-side outlet end edge 14 of the outlet mouthpiece 2 is arranged at a distance from the outlet end face 13 of the sanitary insert in the flow direction. In order to secure the sanitary insert well protected against contact contamination and germs in the outlet mouthpiece 2, it is advantageous if the distance between the outlet end face 13 and the outlet end edge 14 measures more than half the clear diameter of the insert part.

From the Figures 2 and 4 it can be seen that the outlet mouthpiece 2 is accessible from the outside in an area behind the outlet end face 13, for example with a finger. Here, the outlet mouthpiece 2 is pulled so far forward that such a contact usually takes place near the opening which opens outwards. The antibacterial surface is formed in these surface areas, which can also be arranged at a distance from the exiting water jet.

The jet regulator 9, which is not ventilated here, is preceded by an attachment or filter screen 15 which has to filter out the lime and dirt particles carried along in the inflowing water before they can impair the function of the sanitary insert and its components. The jet regulator 9 is also preceded by a flow rate regulator 16 on the inflow side, which has an annular throttle body 18 made of elastic material in an annular flow opening 17, which between itself and a circumferential regulating profile delimits a control gap which changes under the pressure of the flowing medium in such a way that the The amount of water flowing through per unit of time is regulated to a specified maximum value. The flow regulator 16 is preferably arranged between the attachment or filter screen 15 and the jet regulator 9 on the downstream side.

From the longitudinal section in Figure 2 It can be seen that the clear cross-section of the sleeve-shaped outlet mouthpiece 2 is greater than the clear outlet cross-section of the insert and its insert housing 5, at least in the partial area following the outlet face of the insert in the flow direction. This prevents the water jet flowing out of the insert from reaching the inner circumference of the outlet nozzle 2 and may still carry germs with it.

The sanitary outlet unit shown here also satisfies high hygienic requirements due to its properties that counteract bacterial contamination, such as those made, for example, in a hospital.

List of reference symbols

1

sanitary outlet unit

2

Outlet mouthpiece

3

thread

4th

Upstream sleeve opening of the outlet mouthpiece 2

5

Insert housing

6th

first insert element

7th

third insert element

8th

third insert element

9

Aerator

10

Baffle

11

Perimeter wall

13th

Outlet face of the insert housing 5

14th

Outlet front edge of the outlet mouthpiece 2

15th

Attachment or filter sieve

16

Flow regulator

17th

Flow opening

18th

Throttle body

19th

Sealing ring (between the end edge of the outlet fitting on the outlet side and the adjacent peripheral edge of the outlet unit)

Claims (21)

1. Sanitary outlet unit (1) which can be fitted to the water outlet of a sanitary outlet fitting, having a sleeve-like and single- or multi-part outlet mouthpiece (2), which (2) has a thread (3) or similar fastening means for fastening to a counterpart thread or similar countering means on the water outlet of the sanitary outlet fitting, and having at least one sanitary insert part, which can be inserted from an inflow-side sleeve opening (4) of the outlet mouthpiece (2) into the latter (2) until the at least one insert part bears on a support on the sleeve inner circumference of the outlet mouthpiece (2), wherein the outflow-side outlet face edge of the outlet mouthpiece (2) is arranged with a spacing after the outlet face side of the sanitary insert part in the throughflow direction, and wherein the clear sleeve cross section of the outlet mouthpiece (2) is, at least in the sub-region following the outlet face side of the insert part in the throughflow direction, larger than the clear outlet cross section of the insert part and the insert housing (5) thereof, characterized in that the outlet unit (1) has, at least in an outflow-side sub-region of the outlet mouthpiece (2), an anti-bacterial surface, and in that the spacing between the outlet face side and the outlet face edge measures more than 5 mm.
2. Sanitary outlet unit according to Claim 1, characterized in that the at least one insert part is in the form of an insert element, or has at least one insert element (5, 6, 7, 8), which (5, 6, 7, 8) has a perforated structure with throughflow holes.
3. Sanitary outlet unit according to Claim 2, characterized in that the at least one insert element (5, 6, 7, 8) has a grid-like, mesh-like or honeycomb perforated structure.
4. Sanitary outlet unit according to Claim 3, characterized in that the grid-like or mesh-like perforated structure is formed from sets of webs crossing one another at crossing points, which webs bound the throughflow holes between one another.
5. Sanitary outlet unit according to one of Claims 2 to 4, characterized in that the perforated structure of the at least one insert element (7, 8) is bounded by a ring at the outer circumference.
6. Sanitary outlet unit according to one of Claims 2 to 5, characterized in that provision is made for at least two insert elements (5, 6) spaced apart from one another in the throughflow direction, of which at least one insert element (6) is in the form of a jet splitter, which divides the water jet into individual jets, and one outflow-side insert element (5) is in the form of a flow straightener, which brings together the individual jets to form a homogeneous outlet jet.
7. Sanitary outlet unit according to one of Claims 1 to 6, characterized in that the sanitary insert part is in the form of a preferably non-aerated jet regulator or in the form of a jet former or has a preferably non-aerated jet regulator (9) or jet former.
8. Sanitary outlet unit according to one of Claims 1 to 7, characterized in that the sanitary insert part has an insert housing (5) which, at least in a sub-region, has an anti-bacterial housing surface at the inner side and/or outer side.
9. Sanitary outlet unit according to Claim 8, characterized in that at least two insert elements (6, 7, 8) are inserted into the insert housing (5).
10. Sanitary outlet unit according to one of Claims 1 to 9, characterized in that the sanitary insert part or at least the insert housing (5) thereof consists of at least one plastic part and in particular at least one plastic injection-moulded part.
11. Sanitary outlet unit according to one of Claims 1 to 10, characterized in that the sanitary insert part and in particular the insert housing (5) thereof bears an anti-bacterial surface coating in the region of the anti-bacterial surface.
12. Sanitary outlet unit according to one of Claims 1 to 11, characterized in that the outlet mouthpiece (2), in the region of the anti-bacterial surface thereof, is produced from a material with anti-bacterial material properties.
13. Sanitary outlet unit according to one of Claims 1 to 12, characterized in that the outlet mouthpiece, in the region of the anti-bacterial surface thereof, is produced from copper or a copper alloy.
14. Sanitary outlet unit according to one of Claims 1 to 13, characterized in that the outflow-side outlet end region of the outlet mouthpiece is formed by a copper annular sleeve.
15. Sanitary outlet unit according to Claim 14, characterized in that the spacing between the outlet face side and the outlet face edge measures more than 10 mm and preferably more than 15 mm.
16. Sanitary outlet unit according to Claim 14 or 15, characterized in that the spacing between the outlet face side and the outlet face edge measures more than one third of the longitudinal extent of the insert part in the throughflow direction.
17. Sanitary outlet unit according to one of Claims 13 to 16, characterized in that the spacing between the outlet face side and the outlet face edge measures more than half of the clear diameter of the insert part.
18. Sanitary outlet unit according to one of Claims 7 to 17, characterized in that the jet regulator (9) or jet former of the insert part is connected, preferably detachably, to an inflow-side upstream screen or filter screen (15).
19. Sanitary outlet unit according to one of Claims 7 to 18, characterized in that a throughflow-rate regulator (16) or throughflow limiter is arranged upstream of the jet regulator (9) or jet former of the insert part at the inflow side and is preferably arranged between the jet regulator (9) or jet former at one side and the upstream screen or filter screen (15) at the other side.
20. Sanitary outlet unit according to one of Claims 1 to 19, characterized in that the outlet mouthpiece (2) bears at least one annular groove on its outflow-side outlet face edge.
21. Sanitary outlet unit according to one of Claims 1 to 20, characterized in that the anti-bacterial surface is formed at least on a surface region which is accessible from the outside, in particular a surface region spaced apart from the water jet.

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