EP3546665B1 - Overflow device for a sanitary basin or a sanitary tub - Google Patents

Description

The invention relates to an overflow set for a sanitary basin or a sanitary tub, in particular a bathtub, with an overflow body that can be fixed to a passage opening in a basin or bathtub wall, a counterpart for fixing the overflow body to the passage opening, a drive part for triggering a function, in particular one Valve function, and a rotary rosette for actuating the drive part, the overflow body having a bearing for a driver shaft that can be actuated by the rotary rosette, the rotary rosette having a collar serving as a gripping surface, and the collar surrounding a decorative cover which has a substantially circular peripheral edge .

Such overflow fittings, which have a rotary rosette for actuating a drain valve arranged in the bathtub floor, are known in various designs (see e.g. BE 837925 A , US 5123123 A , EP 1 010 825 A2 or EP 1 967 665 A2 ).

The rotating rosettes of conventional overflow fittings for bathtubs usually have a chrome-plated surface on their visible front or outside. Sometimes the visible outside of well-known rotary rosettes is also provided with decorative elements such as form elements or a surface structure. For example, the applicant's rotary rosettes have a wedge-shaped projection which symbolizes the letter "V". Furthermore, some of the applicant's rotary rosettes are also provided with their company logo. Depending on the rotary position of the rotary rosette, its appearance is different. If the rotary rosette is moved from an aligned position to a position rotated by about 170 ° to actuate the drain valve in the tub bottom, this is the case Appearance rather unfavorable from an aesthetic point of view, since the company logo and / or the protrusion symbolizing a V are then upside down.

The the DE 8602370 U1 an inflow and overflow fitting for bathtubs is known which has a housing and an inlet rosette. The housing and the inlet rosette are fixed to the tub in the area of the upper edge by a nut that can be screwed onto a threaded shoulder of the housing. Furthermore, a driver shaft is provided which is rotatably mounted in a bore in the housing and has a rotary rosette at one end. The driver shaft is designed in one piece with the rotary rosette or is connected to form an assembly unit, the assembly unit being secured against axial displacement by a snap connection and being rotatably mounted on or in the inlet rosette.

The BE 837925 A shows an overflow fitting for a bathtub, with a control device for a bottom outlet valve of the bathtub, the outlet valve being controlled via a flexible force transmission element by means of a rotating rosette arranged in the upper part of the tub in the area of an overflow outlet. The flexible force transmission element is arranged in a connection body carrying the outlet valve in such a way that it ends coaxially with a valve body of the outlet valve and is connected to the latter in such a way that it can transmit pressure forces without any anchoring being present. The rotating rosette has a collar which serves as a gripping surface and which surrounds a decorative cover which has a substantially circular peripheral edge.

The US 2015/240465 A1 shows an inlet and overflow fitting which has a water inlet control device, a water drainage device, an overflow pipe, a Bowden cable and a drain valve device. The water supply control device, the water drainage device and the drain valve device are thereby a single device or unit summarized, which thus offers several functions for quick and easy use and installation.

The US 5123123 A Figure 3 shows a control mechanism for a bathtub having a drain opening and an overflow opening, the drain opening being provided with a plug which is movable between an open and a closed position. The control mechanism comprises a tube for coupling the bathtub drain opening with the overflow opening and a T-shaped bracket which is rotatably supported in the overflow opening and has a projection which extends outwardly from the opening and whose first and second opposing legs extend radially therefrom . A handle for rotating the holder is detachably connected to the T-shaped holder. The handle includes a front decorative and an opposing rear surface that includes rearwardly elongated tabs with flanges for releasably engaging first and second opposing legs. A link mechanism couples the T-shaped bracket to the plug to control movement of the plug.

Proceeding from this, the invention is based on the object of creating an overflow fitting of the type mentioned at the outset, the rotary rosette of which offers an improved appearance while being easy to use.

This object is achieved by an overflow fitting with the features specified in claim 1. Preferred and advantageous configurations of the overflow fitting according to the invention are specified in the claims which refer back to claim 1.

The overflow fitting according to the invention is characterized in that the counterpart and the cover are prepared to hold the cover in a rotationally fixed manner on the counterpart when the overflow fitting is in the assembled state.

The collar is preferably designed to be essentially ring-shaped. The decorative cover, which is fixed opposite the rotating rosette with its collar serving as a gripping surface, can be provided with a logo and / or a design element to be aligned. The invention is based on the idea of separating the function and design of a rotary rosette of an overflow fitting.

The solution according to the invention ensures that with good operability of the rotary rosette, the appearance of a correctly aligned logo or design element arranged on the rotary rosette is consistently good, since the set alignment of the design element or logo remains unchanged even when the rotary rosette is operated. The logo or design element attached or formed on the cover can be oriented essentially horizontally or vertically, for example.

An advantageous embodiment of the invention is characterized in that the rotary rosette has a section which connects the collar and the driver shaft to one another and delimits a recess through which a plug-in element that is fixedly connected or rotatably connectable to the decorative cover projects, the counterpart having a receptacle into which the plug element can be inserted in a form-fitting manner. In this way, with a rotating rosette of an overflow fitting, a separation of function and design can be achieved in a reliable and structurally favorable manner. A sleeve-shaped section of the counterpart that defines the receptacle can preferably also protrude into or through the recess. The recess provided in the connecting section between the collar and the driver shaft can be designed, for example, in the form of an arcuate, in particular arcuate, elongated hole. The elongated hole preferably extends over a circular arc section in the range from 160 ° to 200 °, in particular over at least 180 °. Despite such a relatively large recess, which offers a sufficiently wide rotation of the rotary rosette to trigger a function or to actuate a drive mechanism, the connecting section between the collar and the driver shaft retains a high level of strength, especially torsional and flexural strength in order to reliably transmit forces acting on the collar to the drive shaft. The plug-in element and / or the receptacle are preferably dimensioned in such a way that when the rotary rosette is turned, the plug-in element and / or the sleeve-shaped section defining the receptacle penetrate the recess with play.

By means of the plug connection, which is formed from the plug element protruding through the recess and the associated receptacle, a reliable fixation of the decorative cover on the counterpart of the overflow body fixed on a basin or tub wall can be achieved in a simple manner. For this purpose, the plug-in element and the associated receptacle can for example have a non-circular cylindrical cross-sectional profile, so that rotation of the plug-in element in the receptacle is prevented.

A further advantageous embodiment of the invention provides that the section of the rotary rosette connecting the collar and the driver shaft has a centering means for centering the decorative cover on the rotary rosette. This configuration enables the decorative cover to be optimally aligned with respect to the collar of the rotary rosette, so that an annular gap provided between the rotatable collar and the fixed cover can be made with a very small gap without contact, in particular, when the rotary rosette is turned Frictional contact between the collar and the peripheral edge of the fixed cover comes. Furthermore, this configuration makes it possible to minimize the cross-sectional dimension of the plug element and the internal cross-sectional dimension of the receptacle that essentially corresponds to it. This is because the rotationally fixed fixing of the decorative cover by means of the plug connection formed from the plug-in element and the associated receptacle is advantageously supplemented or supported by the centering means. If the cross-sectional dimension of the plug-in element and the internal cross-sectional dimension of the receptacle essentially corresponding to it are small, the dimensions of the recess in the collar with the driver shaft can also be small connecting portion of the rotary rosette, through which the plug element protrudes, are kept relatively small. In addition, this configuration enables the cross-sectional profile of the plug-in element and the associated receptacle to be designed as a circular cylindrical cross-sectional profile.

The centering means provided on the rotary rosette is preferably designed in the form of a centering opening, the decorative cover or an adapter carrying the cover being provided with a centering pin which can be inserted into the centering opening.

According to a further embodiment of the invention, the plug element is provided on its periphery with a latching element or a rubber-elastic projection. As a result, in addition to the positive connection, a latching connection or a frictional connection between the plug element and the counterpart having the receptacle is achieved, whereby the decorative cover is axially secured to the counterpart in the axial direction of the plug element.

With regard to an axial securing of the decorative cover, it is also advantageous if, according to a further embodiment of the invention, the receptacle has a constriction assigned to the plug-in element.

Another advantageous embodiment of the invention is characterized in that the decorative cover is provided with an adapter on the rear. In this case, the plug-in element and, if necessary, the centering pin are attached to the adapter, preferably formed in one piece with it. The adapter enables the decorative cover to be varied in a simple and inexpensive manner. The cover can be made from different materials, for example from metal, glass, wood, natural stone, plastic or combinations of these materials. The decorative cover is preferably detachably connected to the adapter, so that the respective cover can easily be exchanged for a cover made of a different material if necessary. In particular, this offers Design the possibility of adapting the decorative cover of the rotary rosette to the decorative material of one or more other actuating elements in the vicinity of the rotary rosette, for example to the decorative material of an actuating plate of a concealed cistern.

The decorative cover is preferably designed in the shape of a circular disk. You can also be convex or concave. Furthermore, it can also be designed, for example, in the shape of a spherical segment or a truncated cone.

Another preferred embodiment of the overflow fitting according to the invention is characterized in that its overflow body is provided with a water connection, the overflow body and the counterpart having feed channels that can be connected or connected to one another, and wherein the feed channel of the counterpart is prepared to feed water into a sanitary basin or a pipe sanitary tub. The overflow fitting designed in this way can also be referred to as an inlet and overflow fitting.

The overflow fitting according to the invention preferably has a screw element by means of which the counterpart can be mounted on the overflow body, the overflow body having a thread, preferably an internal thread, assigned to the screw element. This configuration facilitates the alignment of the overflow body and the counterpart when fixing the overflow body to an overflow opening in a basin or tub wall. In addition, the alignment of the decorative cover, which is non-rotatably mounted on the counterpart, is made easier.

According to a further embodiment, it is provided that the screw element and the driver shaft have locking elements assigned to one another, the locking elements allowing rotation of the driver shaft relative to the screw element in the locked state. This configuration enables simple assembly and disassembly of the rotary rosette, the locking elements the Secure the mounted rotary rosette against unintentional loosening of the screw element screwed to the fixed overflow body.

Another embodiment of the actuating device according to the invention is characterized in that the cover has an optical display. The optical display can display the current time, the date, a water temperature and / or a fill level, for example.

Fig. 1

eine an einer Durchgangsöffnung einer Becken- oder Wannenwand montierte Überlaufgarnitur in einer Seitenansicht, wobei die Becken- oder Wannenwand als Wandabschnitt schematisch dargestellt ist;

Fig. 2

die an der Durchgangsöffnung des Wandabschnitts montierte Überlaufgarnitur aus Fig. 1 in einer Vertikalschnittansicht;

Fig. 3

eine kreisscheibenförmige, mit einem Logo versehene Abdeckung in einer perspektivischen Vorderansicht;

Fig. 4

einen Adapter als Träger für die Abdeckung aus Fig. 3 in einer perspektivischen Rückansicht;

Fig. 5

ein Schraubelement der Überlaufgarnitur aus Fig. 1 in einer perspektivischen Vorderansicht;

Fig. 6

ein flanschartiges Gegenstück zum Befestigen des Überlaufkörpers der Überlaufgarnitur aus Fig. 1 und 2 in einer perspektivischen Vorderansicht;

Fig. 7

eine Drehrosette der Überlaufgarnitur aus Fig. 1 und 2 in einer perspektivischen Rückansicht;

Fig. 8

das Schraubelemeht aus Fig. 5 und das an der Durchgangsöffnung des Wandabschnitts aus Fig. 2 angeordnete Gegenstück aus Fig. 6 in Vorderansichten;

Fig. 9

die an dem Schraubelement und dem Gegenstück montierte Drehrosette aus Fig. 7 in einer perspektivischen Vorderansicht; und

Fig. 10

die mit dem Adapter an dem Gegenstück und der Drehrosette montierte Abdeckung aus Fig. 3 in einer perspektivischen Vorderansicht.

The invention is explained in more detail below with reference to a drawing showing an exemplary embodiment. Show it:

Fig. 1

an overflow fitting mounted on a through opening of a basin or tub wall in a side view, the basin or tub wall being shown schematically as a wall section;

Fig. 2

the overflow fitting mounted on the through opening of the wall section Fig. 1 in a vertical sectional view;

Fig. 3

a circular disk-shaped cover provided with a logo in a perspective front view;

Fig. 4

an adapter as a carrier for the cover Fig. 3 in a perspective rear view;

Fig. 5

a screw element of the overflow fitting Fig. 1 in a perspective front view;

Fig. 6

a flange-like counterpart for attaching the overflow body of the overflow set Figs. 1 and 2 in a perspective front view;

Fig. 7

a rotating rosette of the overflow fitting Figs. 1 and 2 in a perspective rear view;

Fig. 8

the screw element out Fig. 5 and that at the through opening of the wall section Fig. 2 arranged counterpart Fig. 6 in front views;

Fig. 9

the rotating rosette mounted on the screw element and the counterpart Fig. 7 in a perspective front view; and

Fig. 10

the cover mounted with the adapter on the counterpart and the rotating rosette Fig. 3 in a perspective front view.

The set shown in the drawing comprises an overflow body 1, which is fixed in a sealed manner using a sealing ring 2 on the outside of a bathtub at a through opening (overflow opening) 3 of the tub wall 4. The overflow body 1 has an overflow channel 5, an optional water connection 6 and a holder (not shown) for an end section of a Bowden cable for actuating a drain valve (not shown) of the bathtub. The overflow channel 5 merges into a nozzle-shaped connection section (not shown) onto which an overflow pipe (not shown) that can be connected to the drain housing (odor trap) of the bathtub can be plugged. The water connection 6 is connected to an inlet channel 1.4 integrated in the overflow body.

To fix the overflow body 1 to the overflow opening 3 of the tub wall 4, the set comprises a counterpart 7 to be arranged on the inside of the bathtub and a screw element 8. The counterpart 7 can also be referred to as a flange. It is provided with a through opening 7.1 for inserting the screw element 8, the screw element 8 having a Has enlarged diameter collar 8.1 which rests on a circumferential shoulder 7.2 on the through opening 7.1 of the counterpart (flange) 7. The overflow body 1 has a connecting piece 1.1 which has an internal thread 1.2 and faces the through opening 3 of the tub wall 4 in the assembled state of the set. The corresponding external thread 8.2 of the screw element 8 is screwed into the internal thread 1.2 of the connecting piece 1.1. For this purpose, the screw element 8 has an annular polygon 8.3, preferably a hexagon, within its diameter-enlarged collar 8.1.

Furthermore, the set comprises a drive part for a gear part for opening and closing the drain valve (not shown) provided in the base of the bathtub, which can be operated by means of a rotary rosette (rotary handle) 9. In the overflow body 1, a receptacle 1.3 is formed in which a pinion 10 is mounted, which is non-rotatably connected to a driver shaft 9.1 rotatable by means of the rotary rosette 9. The rotary rosette 9 has a ring or circular collar 9.2 serving as a gripping surface, which is connected to the driver shaft 9.1 via a disk-shaped section 9.3. The outer surface (grip surface) of the collar 9.2 is, for example, conical and tapers from the tub wall 4 in the direction of the tub interior (cf. Fig. 2 ).

The collar 9.2, the disk-shaped section (connecting section) 9.3 and the driver shaft 9.1 are, for example, formed in one piece. Alternatively, the collar 9.2 and the disk-shaped connecting section 9.3 can be designed in one piece, while the driver shaft 9.1 can be provided with a fastening flange which is connected to the rear of section 9.3 of the rotary rosette 9 in a materially bonded manner. The driving shaft 9.1 is inserted through the ring-shaped polygon 8.3 of the screw element 8 into the pinion 10 rotatably mounted in the overflow body 1.

The pinion 10 has an annular groove 10.1 for a sealing ring on the inside of the essentially hollow cylindrical receptacle 1.3 of the overflow body 1 is present. The drive shaft 9.1 is designed as a spline shaft at its end assigned to the pinion 10, the spline shaft section being inserted into the internally toothed recess of the pinion 10. The pinion 10 is coupled to a Bowden cable (not shown), by means of which the rotary movement of the rotary rosette 9 is transmitted to a lifting and lowering mechanism which actuates the floor drain valve of the bathtub.

Furthermore, in Fig. 2 shown that the screw element 8 and the driver shaft 9.1 have locking elements 8.4, 11 assigned to one another, the locking elements 8.4, 11 allowing rotation of the driver shaft 9.1 relative to the screw element 8 in the locked state.

The collar 9.2 of the rotary rosette 9, which serves as a gripping surface, surrounds a decorative cover 12 which has an essentially circular peripheral edge 12.1 and is, for example, designed in the shape of a circular disk. The disk or cover 12 is provided with a logo 12.2 on its front side. The logo 12.2 can be, for example, a name or a word mark. The logo 12.1 is oriented essentially horizontally here, for example.

The cover 12 and the counterpart 7 are designed to hold the cover 12 in a rotationally fixed manner on the counterpart 7 in the assembled state of the set. For this purpose, the cover 12 is provided with a plug-in element 13.1, while the counterpart 7 has a receptacle (recess) 7.3 into which the plug-in element 13.1 is inserted in a form-fitting manner. The receptacle 7.3 is defined by a sleeve-shaped section 7.4 which is integrally formed on the flange-like counterpart 7. The plug element 13.1 has, for example, the shape of a cylindrical peg or pin. The section 9.3 of the rotary rosette 9 connecting the collar 9.2 and the driver shaft 9.1 delimits a recess 9.4 through which the sleeve-shaped section 7.4 of the flange-like counterpart 7 and the plug element 13.1 connected to the cover 12 protrude (cf. Fig. 2 ). The recess 9.4 is designed, for example, as an arcuate elongated hole. The Collar 9.2 and the connecting section 9.3 of the rotary rosette 9 are preferably made of plastic. Reinforcing ribs 9.5 are formed, for example, on the rear side of the connecting section 9.3, in particular on the edge of the recess 9.4.

Furthermore, the section 9.3 of the rotary rosette 9 connecting the collar 9.2 and the driver shaft 9.1 has a centering means 9.6 in order to center the cover 12 within the annular collar 9.2. The centering means 9.6 is designed, for example, in the form of a bore or centering opening, the center axis of which is aligned with the longitudinal center axis of the driver shaft 9.1, the cover 12 being provided with a centering pin 13.2 which is inserted into the centering opening 9.6.

Within the scope of the present invention, there is the possibility of forming the centering pin 13.2 and the eccentrically arranged plug element 13.1 in one piece with the cover 12. Preferably, however, the cover 12 is provided on the rear with an adapter 13, on the rear of which the centering pin 13.2 and the eccentrically arranged plug element 13.1 are attached or formed in one piece. The use of such an adapter 13 offers the possibility of using different materials for the decorative cover 12. For example, the cover 12 can be made of metal, colored or coated glass and / or wood. For example, an adhesive or magnetic connection can be used to fasten the cover 12 on the front side of the adapter 13.

In order to axially secure the cover 12 or the adapter 13 carrying the cover 12, the plug element 13.1 is provided on its circumference with a rubber-elastic projection 13.3. The projection 13.3 consists, for example, of a rubber ring which is inserted into an annular groove formed on the outer circumference of the plug element 13.1. In addition, the receptacle 7.3 formed in the flange-like counterpart 7 has a constriction 7.5 assigned to the plug element 13.1. The constriction 7.5 is, for example, as a circumferential radial projection designed and arranged in the receptacle 7.3 so that it forms a latching connection, preferably a force-locking latching connection, with the projection 13.3 of the plug element 13.1.

The flange-like counterpart 7 is preferably designed to guide water from the inlet channel 1.4 of the overflow body 1 into the bathtub. For this purpose, the counterpart 7 is provided with a nozzle-shaped inlet channel 7.6, which is inserted into the inlet channel 1.4 of the overflow body 1. The nozzle-shaped inlet channel 7.6 has an annular groove on its outer circumference, into which a sealing ring 7.8 is inserted. A downwardly directed deflection 7.9 with a slot-shaped outlet nozzle 7.10 is arranged at the end of the inlet channel 7.6 protruding into the bathtub. The longitudinal center axis of the outlet nozzle 7.10 forms an acute angle with the longitudinal center axis of the nozzle-shaped inlet channel 7.6 so that the water emerging from the outlet nozzle 7.10 hits the inside of the tub wall 4 at an angle. The outlet nozzle 7.10 opens into a gap 15 which is delimited by the tub wall 4 and the circumferential collar 9.2 of the rotary rosette 9.

The implementation of the invention is not limited to the embodiment shown in the drawing. Rather, numerous variants are possible which make use of the invention specified in the appended claims even if the design differs from the example shown. For example, the overflow fitting can also be designed without a water inlet. Furthermore, at least one radially outwardly protruding projection can be formed as an additional gripping surface on the annular collar 9.2.

Claims (13)

1. Overflow fitting for a sanitary basin or a sanitary tub, in particular a bathtub, having an overflow body (1) which can be fixed to a passage opening (3) in a basin wall or tub wall (4), a counterpart (7) for fixing the overflow body (1) to the passage opening (3), a drive part for triggering a function, in particular a valve function, and a rotary rosette (9) for actuating the drive part, the overflow body (1) providing a bearing for a drive shaft (9.1) which can be actuated by the rotary rosette (9), wherein the rotary rosette (9) has a collar (9.2) serving as a gripping surface, and wherein the collar (9.2) surrounds a decorative cover (12) which has a substantially circular peripheral edge (12.1), characterised in that the counterpart (7) and the cover (12) are designed to hold the cover (12) non-rotatably on the counterpart (7) in the mounted state of the overflow fitting.
2. Overflow fitting according to claim 1, characterized in that the rotary rosette comprises a section (9.3) which connects the collar (9.2) and the drive shaft (9.1) to one another and delimits a recess (9.4) through which a plug-in element (13.1) projects which is fixedly connected to the cover (12) or can be connected in a rotationally fixed manner to the cover (12), the counterpart (7) having a receptacle (7.3) into which the plug-in element can be inserted in a form-fitting manner.
3. Overflow fitting according to claim 2, characterised in that the section (9.3) of the rotary rosette (9) connecting the collar (9.2) and the drive shaft (9.1) comprises a centring means (9.6) for centring the cover (12) on the rotary rosette (9).
4. Overflow fitting according to claim 3, characterized in that the centring means (9.6) is designed in the form of a centring opening, the cover (12) or an adapter (13) carrying the cover (12) being provided with a centring pin (13.2) which can be inserted into the centring opening.
5. Overflow fitting according to any one of claims 2 to 4, characterized in that the plug-in element (13.1) is provided on its circumference with a latching element or a rubber-elastic projection (13.3).
6. Overflow fitting according to any one of claims 2 to 5, characterised in that the receptacle (7.3) comprises a constriction (7.5) associated with the plug-in element (13.1).
7. Overflow fitting according to any one of claims 1 to 6, characterised in that the cover (12) is provided with an adapter (13) on the rear side.
8. Overflow fitting according to any one of claims 1 to 7, characterised in that the cover (12) is designed in the shape of a circular disc.
9. Overflow fitting according to any one of claims 1 to 8, characterised in that the cover (12) is made of metal, glass, natural stone, plastic or wood or a combination of at least two of these materials.
10. Overflow fitting according to any one of claims 1 to 9, characterised in that the overflow body (1) is provided with a water connection (6), wherein the overflow body (1) and the counterpart (7) have inflow channels (1.4, 7.6) which can be connected or are connected to one another, and wherein the inflow channel (7.6) of the counterpart (7) is designed to conduct water into a sanitary basin or a sanitary tub.
11. Overflow fitting according to any one of claims 1 to 10, further characterised by a screw element (8) by means of which the counterpart (7) can be mounted on the overflow body (1), wherein the overflow body (1) has a thread associated with the screw element (8), preferably an internal thread (1.2).
12. Overflow fitting according to claim 11, characterised in that the screw element (8) and the drive shaft (9.1) have latching elements (8.4, 11) associated with one another, the latching elements (8.4,11) permitting rotation of the drive shaft (9.1) relative to the screw element (8) in the latched state.
13. Overflow fitting according to any one of claims 1 to 12, characterised in that the cover (12) has a visual display.

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