EP3272954B1 - Drain assembly - Google Patents

Description

TECHNICAL AREA

The present invention relates to a drain arrangement for a sanitary article, in particular for a drain surface, in particular for a shower surface, according to the preamble of claim 1.

STATE OF THE ART

Drain arrangements for shower surfaces have become known from the prior art. For example, the EP 1 229 174 such a sequence arrangement. According to the technical teaching of EP 1 229 174 a siphon element is attached to a shower surface with several screws. The screws also serve as a storage element for a cover which can be connected to the screws. During the periodic cleaning of the siphon, the cover must be removed, whereby the screws become visible to the user. Some users with a heightened sense of cleanliness have also started to loosen the screws in practice. This was done with the intention of cleaning other less accessible places. Loosening the screws had, depending on the assembly, sometimes very negative consequences. For example, it can happen that the siphon falls from below the shower surface and can then no longer be grasped by the user. It can also happen that the siphon moves away from the drain opening of the shower surface due to pipes laid under tension, so that the siphon can no longer be grasped by the user. Further sequence arrangements which belong to the relevant prior art are disclosed in US Pat DE 201 01 787 U1 , EP 1 253 254 A2 , U.S. 4,943,100 A , EP 0 807 721 A2 , DE 91 02 860 U1 , WO 2011/117825 A1 , GB 2,475,297 A , DE 20 2008 004826 U1 .

DISCLOSURE OF THE INVENTION

Proceeding from this prior art, the invention is based on an object of specifying a drainage arrangement which overcomes the disadvantages of the prior art. In particular, incorrect manipulation on the part of the user should largely or be completely excluded.

This object is achieved by the subject matter of claim 1.A drain arrangement for a drainage surface accordingly comprises a drainage element with a drainage opening extending around a central axis and with at least one fastening opening, which drainage element can be arranged on the underside of the drainage surface, at least one holding element that can be arranged on the top side of the drainage surface is, and at least one fastening element which is passed through the holding element and engages in the at least one fastening opening on the drain element. The arrangement further comprises a cover element which can be connected to the holding element via a fixed connection, in particular via an essentially inseparable connection, the cover element covering the at least one fastening element in the connected state, the cover element being held on the holding element via at least one latching connection , wherein the locking connection comprises a locking tab and a locking recess corresponding to the locking tab, the locking tab is molded on the cover element and wherein the cover element has the locking recess, and wherein the locking tab or the locking recess are arranged on the cover element on the underside oriented towards the holding element, such as that the latching tab or the latching recess is not visible from above.

Covering the fastening element with the cover element has the advantage that the user can no longer see the fastening element and thus cannot be tempted to remove the fastening elements. The fixed connection between the cover element and the holding element also ensures that the user can remove the cover element.

A “fixed connection” or “essentially inseparable connection” between the holding element and the cover element is understood to mean that the connection is mechanically fixed, in particular not detachable when normal force is used in the course of a cleaning process.

The cover element preferably covers the at least one fastening element essentially completely. The expression “essentially completely cover” or “cover” is understood to mean that the cover element covers the at least one fastening means in such a way that it cannot be seen by a user in the installed state. The cover element thus covers the parts of the fastening element which are not in engagement with the other elements. The cover element is preferably held exclusively on the holding element. The this means that the cover element does not enter into any connection with the fastening element. This does not adversely affect the fixed connection between the holding element and the cover element.

In the installed position, the cover element preferably completely covers the parts of the fastening element that are visible from above. This means that the cover element covers all the parts of the fastening element that are visible from above.

“From above” is understood to mean a viewing direction in the installed position from above the drainage surface in the direction of the drainage element.

The connection between the cover element and the holding element is preferably designed in such a way that it cannot be released non-destructively and / or only with the aid of a tool.

The holding element is preferably a ring that runs completely around the central axis and has a discharge opening. Water can flow from the drainage surface in the direction of the drainage element through the drainage opening.

The holding element particularly preferably has at least one through opening through which the fastening element can be passed. The fastening element is guided in the direction of the drainage element via this through opening.

The through opening is preferably designed such that parts of the fastening element are in contact with the through opening or areas adjacent to it.

In a first preferred embodiment, the cover element is a ring segment which only partially extends around the central axis. According to this embodiment, a cover element is preferably provided for each fastening element. The ring segment is firmly connected to the holding element.

In a second preferred embodiment, the cover element is one around the central axis is completely encircling ring with a drainage opening. The drainage opening is in the center of the ring. Water can then flow through this drainage opening to the drainage element. The annular cover element is firmly connected to the holding element.

If both the holding element and the cover element are designed as rings, these two rings are preferably arranged concentrically to one another.

Preferably, the exposed surface of the cover element overflowing with water in the installed state is at least partially rounded and / or partially conical.

The rounding or the conicity are such that a flow-optimized inlet of the water is made possible.

The cover element is held on the holding element via at least one latching connection. A very simple, fixed connection between the cover element and the holding element can be provided with a latching connection.

The locking connection comprises a locking tab and a locking recess corresponding to the locking tab. According to a first variant, the latching tab is formed on the cover element and the holding element has the latching recess. According to a second variant, the locking tab is formed on the holding element and the cover element has the locking recess.

At least one latching tab is particularly preferably provided between two adjacent fastening elements.

The latching tab or the latching recess are arranged on the cover element on the underside which is oriented towards the holding element in such a way that the latching tab or the latching recess is not visible from above. The corresponding latching recess or latching tab on the holding element is preferably arranged on the top of the holding element or is accessible from above.

Other types of connection, such as, for example, a non-positive and / or positive and / or material connection between the holding element and the cover element, are also possible provided that the connection is fixed.

The cover element preferably has at least one recess on its underside into which parts of the fastening element can protrude, with preferably no mechanical connection being established between the fastening element and the cover element. This means that in this preferred embodiment the fastening elements do not enter into a connection with the cover element, but merely protrude into the recess. Particularly preferably, there is play between the recess and the parts protruding into the recess, so that contact between the recess and the fastening element is prevented.

The absence of a mechanical connection between the cover element and the fastening element has the advantage that the fixed connection between the cover element and the holding element is not adversely affected.

The fastening opening in the drain element is preferably a threaded opening and the fastening element is a screw, in particular the screw head of the screw can be covered by the cover element. The screw head is visible from above when the cover element is not present.

The holding element preferably has a stop surface on the underside with which the holding element rests on the drainage surface. The holding element also has a drainage surface on the top. Preferably, both the stop surface and the drain surface are oriented at an angle to the central axis.

Particularly preferably, the holding element provides a receiving area between the central axis and the drainage surface, in which the cover element can be inserted. Particularly preferably, the exposed surface of the cover element overflowing with water is flush with the drainage surface of the holding element. In this way, a good drainage capacity can be ensured. It is also very easy to clean.

The drain arrangement preferably further comprises a cover with a cover surface and latching elements, the cover surface in the installed position being spaced apart from the holding element and the cover element, and the latching elements preferably entering into a latching connection with the cover element.

The latching connection between the cover and the cover element has the advantage that the cover can be installed very easily.

The latching elements of the cover preferably protrude into the drain opening of the cover element and there interlock on the inner wall of the drain opening. This has the advantage that no parts of the cover extend into the drainage element, which would be disadvantageous with regard to the drainage capacity.

The at least one fastening element and the holding element and also the cover element are preferably arranged essentially below the upper side of the drainage surface, viewed in the installed position. The arrangement is such that the holding element and the cover element are overflowed by the water to be discharged. The covering of the at least one fastening element by the cover element also has the advantage that the water to be discharged does not come into contact with the fastening element.

The arrangement preferably further comprises a drainage surface which has a drainage opening, the drainage element being arranged on the underside of the drainage surface, and wherein the holding element is arranged on the upper side of the drainage surface and partially in the area of the drainage opening.

A drainage surface is understood to mean all water-conducting elements, such as a shower surface, a flat shower surface, a shower tray, a washstand or the like.

The drain element preferably comprises a siphon insert which can be removed from the drain element from above for cleaning.

Preferably, the drain element also comprises a seal which completely surrounds the drain opening and which is clamped in the installed position against the underside of the drain surface.

A method for assembling an arrangement described above is characterized in that after the drainage element and retaining ring have been assembled with the fastening elements, the cover element is firmly connected to the retaining ring.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

eine perspektivische Ansicht einer Ablaufanordnung nach einer Ausführungsform der vorliegenden Erfindung;

Fig. 2

eine weitere perspektivische Ansicht der Ablaufanordnung nach Figur 1;

Fig. 3

eine weitere perspektivische Ansicht der Ablaufanordnung nach Figur 1;

Fig. 4

eine Schnittdarstellung der Ablaufanordnung nach Figur 1 in Einbaulage; und

Fig. 5

eine Detailansicht nach Figur 4.

Preferred embodiments of the invention are described below with reference to the drawings, which are only used for explanation and are not to be interpreted as restrictive. In the drawings show:

Fig. 1

a perspective view of a drain assembly according to an embodiment of the present invention;

Fig. 2

a further perspective view of the drain arrangement according to FIG Figure 1 ;

Fig. 3

a further perspective view of the drain arrangement according to FIG Figure 1 ;

Fig. 4

a sectional view of the drain arrangement according to Figure 1 in installation position; and

Fig. 5

a detailed view after Figure 4 .

DESCRIPTION OF PREFERRED EMBODIMENTS

In the figures, a drain arrangement 1 for a drain area 2 is shown. A drainage surface is understood to mean an essentially flat drainage surface or a shower tray. The drain arrangement 1 according to the embodiment shown in the figures comprises a drain element 3, at least one holding element 6, at least one fastening element 7 and a cover element 8 Drainage surface 2 is attached.

In the embodiment shown, the drain element 3 has a drain opening 4 extending around a central axis M and at least one fastening opening 5. The drainage element 3 can be arranged on the underside of the drainage surface 2. The drain element 3 is typically a siphon. In the embodiment shown, the drainage element 3 also has a pipe socket 32 which can be connected to a sewage network.

The at least one holding element 6 can be arranged on the top of the drainage surface 2. The at least one fastening element 7 is passed through the holding element 6 and is mounted on the holding element 6. The fastening element 7 also engages in the at least one fastening opening 5 on the drain element 3. By mounting the fastening element 7 on the holding element 6, which can be arranged on the upper side of the drainage surface, the drainage element 3 can be attracted to the underside 23 of the drainage surface 2.

In the embodiment shown, three fastening elements 7 are arranged, which engage in three fastening openings 5. The three fastening elements 7 are arranged at regular intervals from one another.

The drain arrangement 1 further comprises, as in FIG Figures 2 to 5 shown, a cover element 8. The cover element 8 is shown in FIG Figure 2 shown at a distance from the holding element 6. In the Figures 3 to 5 the cover element 8 is in the installed position. In the installed position, the cover element 8 is connected to the holding element 6 via a fixed connection, in particular via an essentially inseparable connection. This means that the cover element 8 can be connected to the holding element 6 via a fixed connection. In the connected state, the cover element 8 covers the at least one fastening element 7.

In the Figure 2 the at least one fastening element 7 is visible from above, that is to say from the upper side 24 of the drainage surface 2. This means that a user can easily recognize the at least one fastening element 7. In the Figure 3 the cover element 8 is in the assembled position. Here it is shown that the fastener 7 can no longer be recognized by a user because this is covered by the cover element 8 accordingly. Because of the fixed connection between the holding element 6 and the cover element 8, the cover element 8 can no longer be removed without great effort, which prevents the user from still being able to see the at least one fastening element 7. The latter in particular seduces him, as described above, to solve it.

The cover element 8 covers the fastening elements 7 in the installed position essentially in such a way that the parts of the fastening element 7 visible from above are completely covered. This is done in the Figure 3 from which it can be seen that the at least one fastening element 7 can no longer be recognized due to the covering by the cover element 6.

The connection between cover element 8 and holding element 6 is designed in such a way that it is fixed. This means that this connection cannot be released without being destroyed. In further variants this can mean that this connection can only be released with the aid of a tool. Here, too, the connection is preferably such that it destroys the cover element 8.

The holding element 6 is, as in Figures 1 to 3 shown, a ring completely encircling the central axis M. The ring has a central drainage opening 9 through which water can be supplied from the top 24 of the drainage surface 2 to the drainage opening 4 of the drainage element 3.

Furthermore, the holding element 6 has at least one through opening 10 through which the fastening element 7 can be passed. Here there are three through openings 10 for the three fastening elements 7. In the embodiment shown, the at least one through opening 10 is arranged on a web area 26 which protrudes into the outflow opening 9. These through openings 10 or the web areas 26 provide a mounting for the fastening element 7, which is passed through the through opening 10. The fastening element 7 rests with a head section 28 on the upper side of the web area, whereby a clamping effect between the holding element 6 and the when the fastening element is fixed Drain element 3 can be provided.

In the embodiment shown, the cover element 8, as in FIGS Figures 2 and 3 Also shown is a completely encircling ring with a drainage opening 11. Water can be supplied from the top 24 of the drainage surface 2 to the drainage opening 4 of the drainage element 3 through the drainage opening 11. The annular cover element 8 and the annular holding element 6 are arranged concentrically to one another.

Alternatively, the cover element 8 can also be a ring segment. This is not shown in the figures.

The exposed surface 27 of the cover element 8 overflowing with water is configured conical in sections and rounded in sections in the embodiment shown. The rounded section bears the reference number 29 and the conical section the reference number 30. From the outside, the water first flows over the conical section 30 and then over the rounded section 29, which then opens into the drainage opening 11.

In the embodiment shown, the cover element 8 is held on the holding element via at least one latching connection 12. The latching connection establishes the fixed connection.

In the variant shown, the latching connection 12 has a latching tab 13 and a latching recess 14 that corresponds to the latching tab. In the embodiment shown, the latching tab 13 is arranged on the cover element 8 and the latching recess 14 is arranged on the holding element 6 in the embodiment shown. Said locking connection 12 is provided via this connection between the locking tab 13 and the locking recess 14. The latching tab 13 and the latching recess 14 are arranged in such a way that they are essentially not visible from above in the installed position.

In the Figure 2 can also be seen how the locking tab 13 into the locking recess 14 engages the retaining element.

From the sectional views of Figures 4 and 5 It can be clearly seen that the cover element 8 has at least one recess 16 on its underside 15, into which parts of the fastening element 7 can protrude. The recess 16 and the fastening elements 7 are designed with respect to one another in such a way that no mechanical connection is established between the fastening element 7 and the cover element 8. This means that the recess 16 essentially creates a cavity into which the fastening element 7 can protrude with play. The absence of a mechanical connection between the fastening element 7 and the cover element 8 has the advantage that the said mechanical fixed connection between the cover element 8 and the holding element 6 is not further influenced.

The fastening opening in the drain element 3 is preferably a threaded opening. The fastening element 7 is preferably a screw, and in particular the screw head 28 of the screw can be covered by the cover element. The screw head 28 rests on the upper side of the web area 26 on the holding element 6.

The holding element 6 has a stop surface 17 on the underside with which the holding element 6 rests on the drainage surface 2. In the embodiment shown, the holding element 6 rests in the area of the drain opening 22 of the shower element 2. The holding element 6 has on the top a drainage surface 18 which, in the embodiment shown, has a certain conicity. The drainage surface 18 preferably adjoins the top side 24 of the drainage surface 2 and then merges into the surface 27 of the cover element 8 overflowing with the flow. In the Figure 5 the watercourse is symbolized with the arrow P shown. Said surfaces 24, 18 and 27 are located in such a way that the water has as little resistance as possible. In particular, the surfaces are flush with one another.

Of the Figure 5 it can then be further recognized that the holding element 6, the cover element 8 and the fastening elements 7 lie essentially below a plane spanned by the upper side 24. The plane bears the reference symbol E in Figure 5 . The advantage of arranging these elements below the level is that one compact or flat design can be achieved. In addition, the fastening elements 7 are not in the cross section of the inlet, which is beneficial to the drainage capacity of the drainage arrangement 1.

In the embodiment shown, the holding element 6 has a receiving area 25 between the central axis M and the drainage surface 18. The cover element 8 can be inserted into this receiving area 25.

The sequence arrangement comprises, as in FIGS Figures 3 and 5 Also shown is a cover 19 with a cover surface 20 and latching elements 21. In the installed position, the cover surface 20 is spaced apart from the holding element 6 and from the cover element 8. The latching elements 21 form a latching connection with 8. For this purpose, the locking elements 21, as in the Figure 5 shown, around the rounded area 29 of the cover element 8. That is to say, the cover 19 is essentially supported on the cover element 8.

As shown in the figures, the drain element 3 further comprises a seal 31 which extends completely around the drain opening 4. The seal 31 is in the installation position, as in the Figure 5 shown, pulled by the fastening center against the bottom 23 of the drainage surface 2. The seal 31 ensures a seal with respect to a water outlet between the drainage element 3 and the drainage surface 2. The seal 31 is arranged in a perimeter which is outside the arrangement of the fastening elements 7.

REFERENCE LIST

1 Sequence arrangement 19th cover 2 Drainage area 20th Lid surface 3 Drain element 21st Locking elements 4th Drain opening 22nd Drain opening 5 Mounting hole 23 bottom 6 Retaining element 24 Top 7th Fastener 25th Recording area 8th Cover element 26th Bridge area 9 Drain opening 27 flooded surface 10 Through opening 28 Screw head 11 Drain opening 29 rounded area 12 Locking connection 30th conical area 13 Locking tab 31 poetry 14th Locking recess 32 Pipe socket 15th bottom 16 Recess E. level 17th Stop surface P Flow direction 18th Drainage area

Claims (12)

1. Drain arrangement (1) for a drain surface (2) comprising
   a drainage element (3) with a drainage opening (4) extending around a central axis (M) and having at least one fastening opening (5), which drainage element (3) can be arranged on the underside of the drain surface (2),
   at least one retaining element (6), which can be arranged on the upper side of the drain surface (2), and
   at least one fastening element (7) which is passed through the retaining element (6) and is mounted on the retaining element (6) and engages in the at least one fastening opening (5) on the drainage element (3),
   wherein,
   a cover element (8) can be connected to the retaining element (6) via a substantially inseparable connection, wherein the cover element (8) covering the at least one fastening element (7) in the connected state, wherein the cover element (8) is held on the retaining element (6) by means of at least one latching connection (12), characterized in that
   the latching connection comprises a latching lug (13) and a latching recess (14) corresponding to the latching lug (13), wherein the latching lug (13) is integrally formed on the cover element (8) and wherein the retaining element (6) comprises the latching recess (14); or wherein the latching lug (13) is integrally formed on the retaining element (6) and wherein the cover element (8) comprises the latching recess (14), and in that
   the latching lug (13) or the latching recess (14) on the cover element (8) is arranged on the underside oriented towards the retaining element (6) in such a way that the latching tab (13) or the latching recess (14) is not visible from above.
2. Drain arrangement (1) according to claim 1, characterised in that the cover element (8) in the installation position completely covers the parts of the fastening element (7) which are visible from above.
3. Drain arrangement (1) according to claim 1 or 2, characterised in that the connection between the cover element (8) and the retaining element (6) is designed in such a way that it cannot be released non-destructively and/or exclusively with the aid of a tool.
4. Drain arrangement (1) according to one of the preceding claims, characterized in that the retaining element (6) is a ring which completely surrounds the central axis (M) and has a discharge opening (9), wherein the retaining element (6) preferably has at least one through-opening (10) through which the at least one fastening element (7) can be passed.
5. Drain arrangement (1) according to one of the preceding claims, characterized in that the cover element (8) is a ring segment or that the cover element (8) is a ring which is completely circumferential about the central axis (M) and has a discharge opening (11).
6. Drain arrangement (1) according to one of the preceding claims, characterised in that the exposed surface (27) of the cover element (8) over which water flows is rounded and/or conical at least in sections.
7. Drain arrangement (1) according to one of the preceding claims, characterized in that the covering element (8) has on its underside (15) at least one recess (16) into which parts of the fastening element (7) can project, wherein preferably no mechanical connection is made between fastening element (7) and cover element (8).
8. Drain arrangement (1) according to one of the preceding claims, characterised in that the fastening opening (5) in the drainage element (3) is a threaded opening and that the fastening element (7) is a screw, wherein in particular the screw head (28) of the screw can be covered by the cover element (8).
9. Drain arrangement (1) according to one of the preceding claims, characterized in that the retaining element (6) has a stop surface (17) on the underside, with which the retaining element (6) can be placed against the drain surface (2), and in that the retaining element (6) has a discharge surface (18) on the upper side, wherein preferably both the stop surface (17) and the discharge surface (18) are oriented inclined at an angle to the central axis (M).
10. Drain arrangement according to claim 9, characterized in that between the central axis (M) and the discharge surface (18) the retaining element (6) provides a receiving area (25) into which the covering element (8) can be inserted; and/or in that the exposed surface of the covering element (8) over which water flows is flush with the discharge surface (18) of the retaining element (6).
11. Drain arrangement (1) according to one of the preceding claims, characterised in that the drain arrangement (1) further comprises a cover (19) with a cover surface (20) and latching elements (21), wherein the cover surface (20) is spaced apart from the retaining element (6) and the cover element (8) and wherein the latching elements (21) preferably form a latching connection with the cover element (8).
12. Drain arrangement (1) according to one of the preceding claims, characterised in that the arrangement further comprises a drain surface (2) which comprises a discharge opening (22), wherein the drainage element (3) is arranged on the underside (23) of the drain surface (2), and wherein the retaining element (6) is arranged on the upper side (24) of the drain surface (2) and partially in the region of the discharge opening (22).

Images