EP2865815B1 - Sanitary faucet - Google Patents

Description

The invention relates to a sanitary outlet fitting with a fitting body whose body interior opens into a water spout, with an intermediate holder which can be fastened in the water outlet and with a sanitary insert part, which is insertable into the open downstream end side of the intermediate holder, wherein the intermediate holder on the inflow side a connecting piece, which is connectable to a water hose.

Sanitary discharge units, such as jet regulators, are usually releasably secured in the outlet of a sanitary cast iron fitting, for example by means of screw, clamp or snap-in connections. This requires a correspondingly machined casting fitting, which is to be provided for example with a suitable thread or otherwise corresponding fastening devices. Thus, in the manufacture of sanitary cast fittings so far are processing steps, such as the milling of a thread or a circumferential groove, or there are other fastening devices for inserting the sanitary outlet unit required. additional Processing steps represent a high work and cost. Furthermore, in the manufacturing process of cast fittings and voids or the like casting defects occur, which lead to problems in the subsequent machining further processing or surface treatment of the cast fittings. Such faulty outlet fittings may under certain circumstances no longer be used. If the water jet is to be passed through a hygienic water supply without direct contact with the cast iron fitting through it, via a separate pipe provided inside the cast iron fitting, it is likewise necessary to use cast iron fittings which have been machined accordingly.

From the US 2010/071778 A1 already a sanitary outlet fitting of the type mentioned above is known, which has a fitting body whose body interior opens into a water spout. At the water outlet of this outlet fitting an intermediate holder can be fastened, in the open-ended downstream side a sanitary insert part can be used. On the intermediate holder, a connecting piece is provided on the inflow side, which is connected to a water hose, which leads through the fitting body to a shut-off valve. The intermediate holder used in the prior art outlet fitting has a spring arm with a locking cam, which engages the insertion of the intermediate holder in the water outlet in a detent opening on the circumference of the fitting body. In order to be able to remove the intermediate holder as needed, this locking opening is formed open on the outer circumference of the valve body. The open to the outside detent opening affects the appearance of the prior art outlet fitting and is otherwise produced only with an additional manufacturing effort.

From the WO 2009/146410 A1 already a sanitary outlet fitting is known, which has a bowl-shaped fitting body. In this cup-shaped fitting body, a water hose can be inserted, which has an intermediate holder at its downstream hose end. Inside the cup-shaped fitting body are two locking arms, which engage in the position of use the intermediate holder and hold it firmly on the fitting body. The tubular fitting body with the tube inserted therein and the intermediate holder provided at the hose end is covered with a cup-shaped upper part, which can be placed on the fitting body. However, the construction of the known outlet fitting is associated with a high production cost. Since this outlet fitting provides a cup-shaped fitting body and also a shell-shaped upper part, the design options are limited in such an outlet fitting.

This applies in a similar way also for those from the WO 2008/094250 A1 previously known outlet fitting, which also has a cup-shaped fitting body and a shell-shaped upper part, which enclose between itself a water hose with an intermediate holder provided at the outlet end of the hose, wherein the intermediate holder forms the water outlet.

From the WO 2004/038112 A1 already a sanitary outlet fitting is known, which has a tubular fitting body whose tube interior opens into a water spout. The previously known outlet fitting has a pot-shaped or sleeve-shaped intermediate holder, which is held by pressing, gluing, snap, Verkrallen or wedging in the water outlet of the fitting body.

The prior art outlet fitting is associated with a sanitary insert part, which can be inserted into the open-ended outflow-side end face of the intermediate holder and detachably fixable therein. The insert part can be designed as a jet regulator, flow regulator, non-return valve and / or attachment screen. In order to seal the intermediate holder in the water outlet and to prevent unwanted leakage currents between the intermediate holder and the fitting body is in the WO 2004/038112 A1 proposed that an O-ring, a gasket or other additional seals, or provided to the intermediate holder seals are provided or that a seal by the connecting means, such as the adhesive used in the bonding, takes place.

Since the fitting body is regularly formed as a metal casting, since such castings usually have voids, in the area of which the valve can be sealed less well, there is a risk that form over time unwanted leakage currents between the intermediate holder and the fitting body. However, if the sealing is done by elastic sealing rings or by the adhesive layer, the materials used must be food grade, which can increase the production cost even further.

There is therefore in particular the task of creating an outlet fitting of the type mentioned above, which is characterized by a reduced manufacturing cost.

The achievement of this object is in the outlet fitting of the type mentioned in particular that the intermediate holder by inserting the sanitary insert part at least in a portion of his Interim holder circumference is expandable such that the intermediate holder is then held form-fitting or frictionally engaged in the water outlet.

The outlet fitting according to the invention has a fitting body, whose body interior opens into a water outlet. The outlet fitting according to the invention has an intermediate holder which can be fastened in the water outlet. In the open-formed downstream end face of the intermediate holder, a sanitary insert part is used, which may be designed as a jet regulator, flow rate regulator or, for example, as a front screen or may have such jet-guiding or jet-forming components. According to the invention, it is provided that the intermediate holder on the inflow side has a connecting piece which is connected or connectable to a water hose guided in the tube interior of the fitting body. The water flowing through the water hose can flow through the connecting piece in the intermediate holder and escape after flowing through the insert therein as a homogeneous, pearlescent, non-splashing and possibly also flow-limited water jet. It is inventively provided that the intermediate holder is so expandable by inserting the sanitary insert part at least in a portion of its intermediate holder circumference, that the intermediate holder is then held form-fitting or frictionally engaged on the water outlet. Since the intermediate holder can be widened by inserting the sanitary insert part at least in a portion of its intermediate holder circumference so that the intermediate holder is then held positively or frictionally in the water outlet, it is not required for attachment of the intermediate holder in the outlet fitting, in an additional Manufacturing step at the water outlet of Outlet fitting a thread for a screw connection between the intermediate holder and the fitting body to have to work. As a result, the production of the outlet fitting according to the invention is additionally considerably simplified. Since the water no longer flows directly through the body interior of the fitting body, but instead the water hose guided therein, is necessary to avoid unwanted creepage currents or leaks and in particular a machining of the outlet fitting itself is no longer mandatory. Since seals and sealing adhesive layers in the annular zone between the intermediate holder on the one hand and the fitting body on the other hand are dispensable, the production cost of the outlet fitting according to the invention is significantly reduced.

The provided in the outlet fitting according to the intermediate holder can be combined with jet regulators or other sanitary outlet units, which can also be used and fixed in unprocessed sanitary outlet fittings. Labor and cost-intensive processing steps in the production and further processing, in particular of cast fittings thus eliminated. The intermediate holder is connected on the inflow side with a guided in the body interior of the fitting body water hose or connectable. This water hose is a particularly hygienic water flow, which avoids any direct contact of the water to the sanitary outlet fitting.

In order to carry out repairs or maintenance even when needed in the body interior of the fitting body of a sanitary outlet fitting, it is advantageous if the intermediate holder in the water outlet is releasably fastened. After the intermediate holder has been loosened in the water outlet, repair and maintenance work are also in the carcass interior the fitting body possible without the at least provisionally withdrawn from the outlet fitting intermediate holder in the way.

A particularly advantageous embodiment according to the invention provides that the outlet fitting is made without machining at least in the, the intermediate holder receiving portion of its water outlet. In this case, the outlet fitting, for example, be made of sheet metal.

In order to be able to remove the insert part held in the outflow-side end face of the intermediate holder from there and expose it, for example, for descaling or for other maintenance work, it is advantageous if the sanitary insert part can be detachably fixed in the downstream end face of the intermediate holder.

In order to securely, tightly and firmly connect the intermediate holder with the insert in the body interior of the outlet fitting, it is advantageous if the intermediate holder on the inflow side has a connection piece, which is connected to the water hose or connectable.

In order to secure the intermediate holder sufficiently firmly in the water outlet of the fitting body, it is advantageous if the intermediate holder has at least one fastening means which is positively and / or frictionally connected to the fitting body connectable. Since the intermediate holder has at least one fastening means which allows a positive and / or frictional connection on the fitting body, the expense associated with the manufacture and assembly of the outlet fitting according to the invention is additionally reduced.

A particularly easy to produce and mount with little effort embodiment according to the invention provides that the sanitary insert is designed as Einsetzpatrone having a cartridge housing, and that the cartridge housing in the intermediate holder by means of a screw or Renkverbindung is releasably fastened. In this embodiment, the sanitary insert part can be inserted into the intermediate holder to be subsequently releasably fixed there by means of a screw or bayonet connection.

In this case, a preferred embodiment, which can be produced with particularly little effort, provides that an outer thread is provided on the housing periphery of the cartridge housing, which external thread cooperates with an internal thread in the intermediate holder.

The flow-through insert part can serve to guide the water jet, to shape or limit. An advantageous embodiment according to the invention is therefore that the insertion part has a jet regulator and / or a flow rate regulator and preferably an inflow-side attachment screen. It can be filtered out with the help of the attachment screen in the water possibly entrained dirt particles before the water flows out of the water outlet of the sanitary outlet fitting.

In order to secure the intermediate holder so firm and at the same time easily detachable in the water outlet of the fitting body, provides a development according to the invention that protrudes at the inflow-side end face of the intermediate holder at least one web or at least one wall, which web or which wall on at least one opposite wall or at least one counterpart in the fitting body shape or frictionally engaged.

Thus, the intermediate holder can withstand high water pressures and thus the intermediate holder also withstands torsional forces in the direction of rotation, which act when removing and screwing the sanitary insert in the intermediate holder, it is advantageous if the intermediate holder or in the fitting body at least two mutually associated and spaced apart Webs or walls or counter-webs or opposing walls are provided which limit an intermediate or insertion space, in which intermediate or plug-in space a counterpart web or a counter wall or a web or wall of the respective other component is positively or frictionally fixable.

It may be expedient if at least one projection projecting onto at least one web or a wall or counterpart web or counter wall protrudes at least one retaining projection for abutment with the adjacent web or counter wall or web or wall. Such a retaining projection may be formed practically barb-like and cause the firm hold between the intermediate holder on the one hand and the water outlet delimiting edge region of the fitting body on the other.

In this case, a preferred embodiment according to the invention provides that projecting retaining projections are provided on the pairwise associated webs or walls or counter-webs or opposing walls respectively, in the intermediate or plug-in space.

In this case, a preferred embodiment, which is characterized by a secure function, provides that the Intermediate holder at its intermediate holder circumference has at least one spring bar, which is movable or rebound from a release position by inserting the sanitary insert part in a holding position, in which holding position of the spring bar engages behind a portion of the fitting body.

In order that the at least one, provided on the intermediate holder spring bar can spring well into the release position and just as easily spring into the holding position, it is advantageous if the free spring bar end of the at least one spring bar is oriented in the insertion direction of the intermediate holder.

A particularly firm hold of the intermediate holder on the water outlet delimiting edge region of the fitting body is favored when projecting at the free spring bar end of the at least one spring bar a holding cam or a retaining projection with which / the spring bar engages behind the water outlet delimiting inner peripheral edge region of the fitting body.

Further developments according to the invention will become apparent from the drawings in conjunction with the description and the claims. The invention will be described in more detail below with reference to preferred embodiments.

Fig. 1

eine in einem Teil-Längsschnitt dargestellte sanitäre Auslaufarmatur im Bereich ihres Wasserauslaufs, wobei im Wasserauslauf auch der hier dargestellten Auslaufarmatur ein Zwischenhalter gehalten ist, der durch Einsetzen eines sanitären Einsetzteiles zumindest in einem Teilbereich derart aufweitbar ist, dass der Zwischenhalter anschließend form- oder reibschlüssig im Wasserauslauf gehalten ist, wobei das Einsetzteil hier unmittelbar vor dem Einsetzen in den Zwischenhalter gezeigt ist,

Fig. 2

den bereits in den Wasserauslauf des Armaturenkorpus eingesetzten Zwischenhalter, der hier unmittelbar vor dem Einsetzen des sanitären Einsetzteiles dargestellt ist,

Fig. 3

die Auslaufarmatur aus Figur 1 und 2 nach dem Einsetzen des sanitären Einsetzteiles in den im Wasserauslauf befindlichen Zwischenhalter,

Fig. 4

die Auslaufarmatur aus Figur 1 bis 3 in einem Detail-Längsschnitt im Bereich ihres Zwischenhalters, wobei der Zwischenhalter hier nun nach dem Einsetzen des Einsetzteiles den den Wasserauslauf umgrenzenden Innenumfangsrandbereich des Armaturenkorpus hintergreift, und

Fig. 5

die in einer auseinandergezogenen Einzelteildarstellung gezeigte Auslaufarmatur aus Figur 1 bis 4 in einer Unteransicht auf ihre Bestandteile.

It shows:

Fig. 1

a shown in a partial longitudinal section sanitary outlet fitting in the water outlet, wherein in the water outlet and the outlet fitting shown here, an intermediate holder is held, which is expandable by inserting a sanitary insert part at least in a partial area such that the Intermediate holder is then held positively or frictionally in the water outlet, wherein the insert is shown here immediately before insertion into the intermediate holder,

Fig. 2

the intermediate holder already inserted into the water outlet of the fitting body, which is shown here immediately before the insertion of the sanitary insert part,

Fig. 3

the outlet fitting off FIGS. 1 and 2 after inserting the sanitary insert into the intermediate holder located in the water outlet,

Fig. 4

the outlet fitting off Figure 1 to 3 in a detail longitudinal section in the region of its intermediate holder, wherein the intermediate holder here now engages behind the water outlet delimiting inner peripheral edge region of the fitting body after inserting the insert part, and

Fig. 5

the outlet fitting shown in an exploded single part view Figure 1 to 4 in a bottom view on their components.

In the FIGS. 1 to 5 a sanitary outlet fitting 10 is shown. The outlet fitting 10 has a tubular fitting body 3, the tube interior 4 opens into a water outlet 5. In the water outlet 5 of the outlet fitting 10 is an intermediate holder 20 can be fastened, which is designed cup-shaped here. In the open-formed downstream end face of the intermediate holder 20, a sanitary insert part 6 can be used, which has a jet regulator and additionally or instead a flow rate regulator and preferably also an inflow-side attachment screen 7 may have.

In the FIGS. 1 to 5 It can be seen that the intermediate holder 20 on the inflow side has a connecting piece 8 which is connected or connectable to a water tube guided in the tube interior 4 of the fitting body 3, but not shown here. The tap water flowing through the water hose can flow into the intermediate holder 20 via the connecting piece 8 and, after flowing through the insert 6 located therein, can flow out as a homogeneous, non-spraying, optionally sparkling-soft and, if necessary, flow-limited water jet. Since the water no longer flows directly through the tube interior 4, but instead the water hose guided therein, unwanted leakage currents and / or leaks at the outlet fitting 10 are not to be feared even if the fitting body 3 produced, for example, as a metal casting is voids in the area of the water outlet 5 should have. Since sealing rings and sealing adhesive layers are dispensable in the annular zone between the intermediate holder 20 and the fitting body 3, the production cost of the outlet fitting 10 shown here is considerably reduced. Since the water outlet 5 of the fitting body is sealed by the intermediate holder 20 in its outer annular zone and since the intermediate holder 20 is positively and / or frictionally fixed in the water outlet 5, the outlet fitting can optionally also be made of sheet metal.

From the FIGS. 1, 2 and 5 It will be understood that the sanitary insert 6 is formed as an insert cartridge having a cartridge case. Here, the cartridge housing of the insert cartridge 6 in the intermediate holder 20 here by means of a Attached screw. The insert 6 has for this purpose on the housing periphery of its cartridge housing an external thread 9, which external thread 9 cooperates with an internal thread 11 in the intermediate holder 20.

The outlet fitting 10 associated intermediate holder 20 has at least one fastening means which is positively connected and additionally or instead also frictionally connected to the fitting body 3 or connectable.

In the FIGS. 1 to 5 It can be seen that the outlet fitting 10 shown there has an intermediate holder 20 which is expandable by inserting the sanitary insert part 6 at least in a partial area such that the intermediate holder 20 is then held positively and additionally or instead also frictionally engaged in the water outlet 5 of the fitting body 3. The free spring bar end 18 of the at least one spring bar 17 is oriented in the insertion direction of the intermediate holder 20. At the free spring bar end 18 of the at least one spring bar 17 is a retaining cam 19 or a retaining projection, with which retaining cam 19 of the spring bar 17 engages behind the water outlet 5 bounding inner peripheral edge region of the fitting body 3. By inserting the insert 6 in the intermediate holder 20 thus a firm connection between the intermediate holder 20 and the fitting body 3 is achieved, which causes a self-reinforcing under the pressure of the incoming water hold of the intermediate holder 20 in the outlet fitting 10.

LIST OF REFERENCE NUMBERS

3

fittings body

4

Tube interior

5

water spout

6

insert

7

attachment screen

8th

spigot

9

external thread

10

Outlet fitting (according to the FIGS. 5 to 9 )

11

inner thread

12

wall

13

wall

14

Gegenwandung

15

Intermediate or insertion space

16

retaining projection

17

spring bar

18

Spring Bar-end

19

holding cam

20

Intermediate holder (according to the FIGS. 5 to 9 )

Claims (14)

1. Sanitary outlet fitting (10) comprising a fitting body (3), the body interior (4) of which issues into a water outlet (5), an intermediate holder (20), which holder (20) can be fastened in the water outlet (5), and a sanitary insert which can be inserted into the open outflow-side end face of the intermediate holder (20), wherein the intermediate holder (20) has a connecting branch (8) on the inflow side which is can be connected to a water hose, characterised in that the intermediate holder (20) can be expanded at least in a partial region of its intermediate holder circumference, by insertion of the sanitary insert (6), in such a manner that the intermediate holder (20) is subsequently held in a form-fitting or frictional manner in the water outlet (5).
2. Outlet fitting as claimed in claim 1, characterised in that intermediate holder (20) has a connecting branch (8) on the inflow side which is or can be connected to a water hose guided in the body interior (4) of the fitting body (3).
3. Outlet fitting as claimed in claim 1 or 2, characterised in that the outlet fitting (10) is produced without machining at least in the region of its water outlet which receives the intermediate holder (20).
4. Outlet fitting as claimed in any one of claims 1 to 3, characterised in that the intermediate holder (20) has at least one fastening means which can be connected in a form-fitting and/or frictional manner to the fitting body (3).
5. Outlet fitting as claimed in any one of claims 1 to 4, characterised in that the sanitary insert (6) is an insertable cartridge which has a cartridge housing, and in that the cartridge housing can be fastened in a releasable manner in the intermediate holder (20) by a screw connection or bayonet connection.
6. Outlet fitting as claimed in claim 5, characterised in that an external thread (9) is provided on the housing circumference of the cartridge housing, which external thread (9) co-operates with an internal thread (11) in the intermediate holder (20).
7. Outlet fitting as claimed in any one of claims 1 to 6, characterised in that the insert (6) comprises a jet regulator and/or a flow regulator and preferably an attachment screen (9) on the inflow side.
8. Outlet fitting as claimed in any one of claims 1 to 7, characterised in that at least one web or one wall (12, 13) protrudes on the inflow-side end face of the intermediate holder (20), which web or wall (12, 13) acts in a form-fitting or frictional manner on at least one mating wall (14) or at least one mating web in the fitting body (3).
9. Outlet fitting as claimed in any one of claims 7 or 8, characterised in that at least two webs or walls (12, 13) or mating webs or mating walls which are assigned to one another and are spaced apart from one another are provided on the intermediate holder (20) or on the fitting body (3) and delimit an intermediate or insertion space (15), a mating web or a mating wall (14) or a web or a wall of the respective other component (3; 20) being able to be fixed in a form-fitting or frictional manner in the intermediate or insertion space (15).
10. Outlet fitting as claimed in any one of claims 7 to 9, characterised in that on at least one web or one wall (12, 13) or mating web or mating wall there is at least one protruding retaining projection (16) which is intended to bear against the adjacent mating web or adjacent wall (14) or web or wall.
11. Outlet fitting as claimed in any one of claims 7 to 10, characterised in that retaining projections (16) protruding into the intermediate space or insertion space are provided in each case on webs or walls (12, 13) or mating webs or mating walls, which are assigned in pairs to one another.
12. Outlet fitting as claimed in any one of claims 1 to 11, characterised in that the intermediate holder (20) has at least one spring web (17) on its intermediate holder circumference, which spring web, by insertion of the sanitary insert (6), can be moved or rebounded from a release position into a retaining position, the spring web (17) engaging behind a partial region of the fitting body (3) in the retaining position.
13. Outlet fitting as claimed in claim 12, characterised in that the free spring web end (18) of the at least one spring web (17) is oriented in the insertion direction of the intermediate holder (20).
14. Outlet fitting as claimed in any one of claims 12 or 13, characterised in that a retaining cam (19) or a retaining projection protrudes at the free spring web end (18) of the at least one spring web (17), with which cam or projection the spring web (17) engages behind the inner circumferential edge region of the fitting body (3) surrounding the water outlet (5).

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