EP1790262B1 - Method for producing a sanitary device, in particular a washbasin, and device for carrying out said method - Google Patents

Abstract

The sanitary fitting e.g. washbasin (2) has a basin or pan-shaped sanitary body (4), which has a drain slot (5). The sanitary body is produced from mineral casting and is produced out of a single cast along with its drain slot. The drain slot has a height of 12 mm and width of less than 60 mm. An independent claim is also included for the equipment for manufacture of sanitary fitting.

Description

The invention relates to a method for producing a sanitary device, in particular sink, according to the preamble of patent claim 1 and to an apparatus for carrying out such a method according to the preamble of patent claim 5.

Wash basins are known in practice, which have a vertical drainage slot which extends approximately over the entire width of a basin recess and is visible from the front of the basin forth.

Furthermore, from the DE 203 04 759 U1 a sink with a vertical drain slot known, which also extends over the entire width of a pelvic cavity, but is not visible from the front of the basin forth. Such a sink, for example, consists essentially of stainless steel. Below the pelvic trough a collecting device for the drain is provided as a drain, wherein the basin trough and catcher can be integrally formed.

From practice, so-called solid-surface basins are also known in which a drainage slot is visible at different locations in the washbasin. These solid-surface basins are glued together from sheet material. Out of practice are as well Vanity models known where the drain hole is covered by a separate plate, so that a circumferential groove is visible, through which the water can flow.

From the DE 26 45 445 A1 is a method for producing plastic sink known in which the inner surfaces of an outer and inner molds of a negative mold coated with a curable gelcoat, the formwork after the solidification start but before curing of the gelcoat layer are joined, the cavity formed with shaking with flowable curable Backfill is filled, wherein the backfill compound chemically combines with the still reactive gelcoat and then cure both together.

In the preamble of claim 1 is of the aforementioned DE 20 304 759 U1 has been assumed.

The invention has for its object to provide a method for producing a sanitary device, with which this is more economical to produce; The invention is also based on the object to provide a device for carrying out such a method.

This object is achieved by a method having the features of patent claim 1 and by an apparatus having the features of patent claim 5.

Advantageous developments are the subject of the respective subclaims.

Thereafter, the sanitary device has a basin-like or trough-like sanitary body, which is made of mineral casting and, together with its at least one drainage slot formed therein, is molded from a single casting. For the formation of at least one drain slot therefore no separate or further step is required. The entire sanitary body can therefore be formed in a single operation, ie from a single casting. It is therefore no longer necessary to provide separate plates as previously mentioned in relation to the prior art as a cover of the process. Ultimately, such a sanitary device is therefore particularly economical to produce.

According to an advantageous embodiment of the invention, the sanitary body has a drain connected to the respective discharge slot drain part, which is also formed in the one cast on the sanitary body with. As a result, the economic production of the sanitary device according to the invention is further improved. There is no provision for a separate drainage trap as previously mentioned in relation to the closest prior art. The drain part is thus integrally connected to the sanitary body and formed on this. Special processing steps for providing such a discharge part are therefore not required according to the invention.

Advantageously, the at least one drainage slot is arranged in a vertical plane and can not be seen from the front of the sanitary body. This results in an aesthetically pleasing embodiment of the sanitary device according to the invention. The sanitary device according to the invention is thus not only particularly economical to produce but designed particularly appealing in design. An optionally contaminated drainage slot is not readily visible, which can be particularly advantageous in public sanitary areas.

According to another embodiment of the invention, the at least one drain slot is rectangular and preferably has a height of about 12 mm and a width of less than 60 mm. Even with such a slot, the flow rate of water required by DIN can be achieved, so that the DIN EN 274 standard can be met.

According to the invention, the apparatus for carrying out a method for producing a sanitary device has a lower mold part and a mold top having an opening for the casting material, which is detachably connected to the first partially leaving a mutual distance for molding a sanitary body of the sanitary device made of mineral casting, and a molding, by means of which a drain part is integrally formed on the sanitary body, wherein the molded part in the region of the opening for the casting material is releasably connected to the upper mold part and has a bearing surface with which it can rest firmly against the casting mold base to provide at least one drainage slot. In the region of the opening for the casting material, the molded part can be connected in a particularly easily detachable manner to the casting shell. This attachment has the advantage that the molded part can be designed to be separable from the sanitary body independently of the upper mold part. But it is also possible to separate the mold shell together with the molding of the finished cast sanitary body. Therefore, the discharge opening of the discharge part can be provided by simply applying the support surface against the lower mold base. The discharge opening may have different dimensions and is in the form of a drainage slot.

Advantageously, the molded part is connected to the upper mold part in such a way that its bearing surface bears against a surface of the lower mold part facing the upper mold part and covers this part of the surface against the casting material. The drain opening thus arises by simply firmly applying the support surface of the molding against a part of the surface of the mold base. This development contributes to be able to produce the sanitary body of a sanitary device economically.

According to another embodiment of the invention, the lower mold part has a directed to the casting top, convex bulge with approximately vertical contact surface against which the support surface of the molding is brought into abutment. The drainage opening can thus be formed by simply bringing in contact of the bearing surface of the molded part and the contact surface of the convex protrusion. So it is not necessary that the molding penetrates the mold base in any way. This contributes, as mentioned above, to be able to produce the sanitary device particularly economical.

Advantageously, the bearing surface of the molded part is formed at a pin-like end thereof, wherein preferably the molded part is a rotary member and at its pin-like end has an approximately semi-cylindrical recess, one of which, the pin-like end associated surface forms the bearing surface of the molding. Due to the design of the molded part as a rotating part, a drain part with likewise circular flow cross section can be achieved in a simple manner. In this respect, the cross section of the discharge part can already be adapted to that of a discharge line. Due to the shape of the recess, the shape of the outflow cross section and of the flow cross section for the outflow part and the arrangement of the outflow cross section within the outflow part can be determined and determined particularly easily.

According to another embodiment of the invention, the surfaces of the recess of the molding arcuate over a rounding into each other. This makes it easy to clean the sanitary device according to the invention without sharp edges. Furthermore, a particularly attractively designed drainage area is created. The formation of sharp edges in the region of the drain opening is thus prevented in a simple manner.

Fig. 1

einen Schnitt durch eine Sanitäreinrichtung in Form eines Waschbeckens in einer schematischen, perspektivischen Ansicht;

Fig. 2

eine Vorrichtung zum Durchführen eines Verfahrens zum Herstellen einer Sanitäreinrichtung in einer auseinander gezogenen, teilweise geschnittenen, schematischen, perspektivischen Ansicht;

Fig. 3

eine schematische, perspektivische, teilweise geschnittene Ansicht einer Vorrichtung gemäß Fig. 2 im zusammengebauten Zustand;

Fig. 4

eine schematische, perspektivische Ansicht von Teilen der Vorrichtung; und

Fig. 5

einen Schnitt etwa entlang der Linie V-V in Fig. 3 in einer schematischen, perspektivischen Ansicht.

Embodiments of the subject invention are explained in more detail with reference to the drawing, wherein all described and / or illustrated features alone or in any combination form the subject matter of the present invention, regardless of their combination in the claims or their dependency. Show it:

Fig. 1

a section through a sanitary device in the form of a sink in a schematic perspective view;

Fig. 2

an apparatus for carrying out a method for producing a sanitary device in an exploded, partially sectioned, schematic, perspective view;

Fig. 3

a schematic, perspective, partially sectioned view of a device according to Fig. 2 in the assembled state;

Fig. 4

a schematic, perspective view of parts of the device; and

Fig. 5

a section approximately along the line VV in Fig. 3 in a schematic, perspective view.

In Fig. 1 is a section through a sanitary device 1 in the form of a washbasin 2 in a schematic, perspective view shown. It should be noted that the sanitary device is designed only by way of example and not exclusively in the form of a wash basin. In this respect, the invention is concerned with any sanitary device, ie for example with a sink, a sink, a bathtub, a bidet or the like. Usually, the sanitary device is provided with a water supply device (not shown), for example in the form of a mixer tap for hot and cold water, wherein the water collected by the sanitary device drains off via a drain part 3.

The sanitary facility 1 has, as in Fig. 1 indicated, a basin or tub-like sanitary body 4, which has at least one drain slot 5. According to the in the Fig. 1 to 5 illustrated embodiment, the sanitary body 4 has only one drain slot 5. It should be noted that the sanitary body but can also have multiple slots, if desired or required.

According to the sanitary body 4 is made of mineral casting and, together with its formed therein, at least one drain slot 5 formed from a single cast. Mineral casting, also called polymer concrete, contains about 80 to 90% of inorganic fillers, such as quartz, calcium carbonate, etc. in different grain sizes and about 10 to 20% unsaturated polyester resin or other reactive resins, these ingredients mixed together and cold together with appropriate catalysts in a Device 6 for carrying out the invention Method for producing a sanitary device 1 (see. Fig. 2 . 3 . 5 ) are bottled. The paste-like mixture cures by the chemical reaction of the ingredients within a relatively short time, for example within 12 hours, endfest, whereby the shrinkage rate is in a very small range due to the high proportion of mineral fillers.

The hatching symbolizing a cut are in the Fig. 1 to 3 and 5 omitted for the sake of clarity.

According to a particularly preferred, also in Fig. 1 shown embodiment of the invention, the drain part 3 is connected to the respective drain slot 5, wherein the drain part 3 is also formed in the one cast on the sanitary body 4 with. The sanitary body 4 in the form of the sink 2, together with its drain part 3, therefore, is an integrally formed body.

The at least one drainage slot 5 is arranged in a vertical plane and, according to a preferred embodiment of the invention, can not be seen from the front side 7 of the sanitary body 4. This is in the representation according to Fig. 1 therefore left in the figure. Accordingly, the back 10 of the sanitary body 4 is located on the right edge of the figure.

The at least one drainage slot 5 is rectangular and has for example a height of about 12 mm and a width of preferably less than 60 mm.

The shape of the sanitary device 1 is arbitrary and variable within wide limits. This also applies ultimately to the shape and dimensions of the at least one drain slot.

The device 6 for carrying out the method according to the invention for producing a sanitary device 1, as described in particular but not exclusively previously and in Fig. 1 is shown in a perspective, exploded view partially in section in Fig. 2 shown. Ultimately, the device 6 a casting mold. It has a mold base 11 and a mold top 12. The mold top 12 has an opening 13 for the molding material not shown in detail, so for example for the polyester resin to be filled into the mold. Mold base 11 and upper part 12 are partially releasably connected to each other while leaving a mutual distance for molding the sanitary body 4 made of mineral cast iron of the sanitary device 1. This connection can be made for example via bolts not shown in detail.

Further, the device 6 has a molded part 14, by means of which the drain part 3 is integrally formed on the sanitary body 4.

How more accurate in the Fig. 3 to 5 1, the molding 14 is detachably connected to the casting mold top 12 in the region of the casting material opening 13. This connection is made, for example, via a holding rod 15, which can be screwed by screws 16 on the one hand to the upper side 17 of the molded part 14, on the other hand in the region of the opening 13 with the upper mold part 12. The assembled state of the device 6 is more detailed in FIGS Fig. 3 and 5 shown. The screws 16 are in the illustration according to Fig. 2 omitted for simplicity.

The molded part 14 has a bearing surface 20, with which it can rest firmly against the casting mold base 11. For this purpose, the molded part 14 is connected to the upper mold part 12 in such a way that its bearing surface 20 rests against a surface 21 of the mold base 11 facing the mold top 12 and partially covers this surface against the casting material. This, a part of the surface 21 of the mold base 11 covering position of the support surface 20 of the molding 14 is more precisely in the Fig. 3 to 5 shown. Fig. 3 shows a perspective, schematic view of the device 6 for carrying out the method according to the invention for producing a sanitary device in a partially sectioned illustration, Fig. 4 a perspective view from above of the lower mold part 11 with the molding 14 in its, part of the surface 21 of the mold base 11 covering position and Fig. 5 a section along the line VV in Fig. 3 in a perspective, schematic, partially sectioned illustration.

How more accurate in the Fig. 2 . 3 and 5 The convexity 22, which can also be referred to as a protrusion, has a vertical contact surface 23. In this respect, the protrusion 22 protrudes beyond an upper side 24 of the casting mold top surface 12. Lower part 11 upwards in front. The bulge 22 can, as in the Fig. 2 and 4 shown, have a curved shape or be formed with more angular edges (not shown). Against a portion of the contact surface 23 of the bulge 22 is at least a portion of the support surface 20 of the molding 14 can be brought into abutment. The mutual contact of said surfaces of bulge 22 of the mold base 11 and of molding 14 is in the Fig. 4 and 5 shown closer.

The bearing surface 20 of the molding 14 is formed according to the embodiment shown at a pin-like end 25 of the molding 14. In the illustration according to the Fig. 2 to 5 the shaped part is according to the embodiment shown a rotating part and has at its pin-like end 25 has an approximately semi-cylindrical recess 26. The one surface of the recess 26, which is associated with the pin-like end 25 and extends vertically in the installed state of the molding forms the aforementioned bearing surface 20 of the molding 14. The other surface 27 of the recess 26 extends approximately horizontally in the installed state of the molding within the device 6 , Wherein said surfaces 20 and 27 of the recess 26 of the molding 14 via a curve 30 arcuate into each other. The mentioned surfaces 20, 27 enclose an angle of approximately 90 °.

The diameter 31 of the molding 14 corresponds to the finished cast sanitary device 1, so for example in the sink 2 according to Fig. 1 , about the diameter 32 of the discharge part 3 of the basin. Likewise, the diameter 31 of the molding 14 corresponds to the width of the in Fig. 1 shown drain slot 5, it should be noted that in the illustration according to Fig. 1 the width of the drain slot 5 is only half shown due to the laid section.

When forming the formed between the lower mold part 11 and the upper mold part 12 space 33 and the formation of the discharge part 3 on the sanitary body 4 remains through the mutual contact of support surface 20 of the molding 14 and contact surface 23 of the bulge 22 of the mold base 11 that Casting material not shown in detail in the region of the vertical surface 21 of the mold base 11 prevented from completely surrounding the bulge 22, so that ultimately in the sanitary body 4, an opening in the form of the drain slot 5 remains free. As previously mentioned, the formation of the sanitary body 4 of the sanitary device 1 is done together with the drain slot 5 and the drain part 3 in a single casting.

The invention is not limited to a vertically arranged drainage slot. According to another, not shown embodiment of the invention, the drain slot in the finished molded sanitary body could also lie in a horizontal plane. According to a further, not shown embodiment of the invention, the drain opening could also be different, for example, circular, be formed.

Thus, a method for producing a sanitary device is specified, by means of which the sanitary device can be produced economically and an aesthetically particularly appealing design is made possible. Furthermore, an apparatus for carrying out a method for producing such a sanitary device is provided.

Claims (10)

1. Method for producing a sanitary device, in particular a washbasin (2) comprising a bowl-type or tub-type sanitary body (4) having an outlet slit (5), characterised in that the sanitary body (4) is made from cast mineral composite and is moulded together with its at least one outlet slit (5) formed therein from a single cast unit.
2. Method according to claim 1, characterised in that the sanitary body (4) has an outlet part (3) connected to the associated outlet slit (5), said outlet part (3) also being cast onto the sanitary body (4) in the single cast unit.
3. Method according to claim 1 or 2, characterised in that the at least one outlet slit (5) is arranged in a vertical plane and preferably cannot be looked into from the front side (7) of the sanitary body (4).
4. Method according to one of the preceding claims, characterised in that the at least one waste slit (5) is formed rectangular and preferably has a height of 12 mm and a width of less than 60 mm.
5. Device for carrying out the method according to one of the preceding claims, characterised in that a casting mould lower part (11) and a casting mould upper part (12), which has an opening (13) for the casting material and is detachably connected to the former, partially leaving a mutual separation for the forming of a sanitary body (4) of the sanitary device (1) made from cast mineral composite, and a mould part (14) are provided, and with the aid of said mould part (14), an outlet part (3) can be formed on the sanitary body (4) in one piece with it, and that the mould part (14) is detachably connected to the casting mould upper part (12) in the region of the opening (13) for the casting material and has a supporting surface (20) with which it can lie firmly against the casting mould lower part (11) to provide at least one outlet slit (5).
6. Device according to claim 5, characterised in that the mould part (14) is connected to the casting mould upper part (12), that its supporting surface (20) lies against a surface (21) of the casting mould lower part (11) facing towards the casting mould upper part (12) and at least partially covers this surface against the casting material.
7. Device according to claim 5 or 6, characterised in that the casting mould lower part (11) has a convex arch (22) directed towards the casting mould upper part (12), said arch having an approximately vertical contact surface (23) against which the supporting surface (20) of the mould part (14) can be brought into contact.
8. Device according to one of the claims 5 to 7, characterised in that the supporting surface (20) of the mould part (14) is formed on a spigot-like end (25) thereof.
9. Device according to claim 8, characterised in that the mould part (14) is a turned part and has, at its spigot-like end (25), an approximately hemicylindrical cut-out (26) whose one surface allocated to the spigot-like end (25) comprises the supporting surface (20) of the mould part (14).
10. Device according to claim 9, characterised in that the surfaces (20, 27) of the cut-out (26) in the mould part (14) give way to each other via a rounding (30) in an arc shape.

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