Sanitary basin, method for providing a sanitary basin and sanitary system
The sanitary basin design with a rounded collar section and angled surfaces addresses the complex post-processing issue of flush-mounted basins, enabling cost-effective and easy installation with reduced gaps and improved hygiene.
Patent Information
- Application Number
- EP2025176377
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-25
- Filing Date
- 2025-05-14
- Publication Date
- 2025-12-31
AI Technical Summary
Existing sanitary basins with lateral demolding slopes require complex and costly post-processing to reduce gaps in flush-mounted installations, generating dust and necessitating enhanced safety measures.
A sanitary basin design with a collar section featuring a rounding of less than 3 mm radius and an angled transition between surfaces, allowing for flush mounting without post-processing, manufactured in a single piece using a curable casting compound.
Facilitates cost-effective and easy manufacturing with reduced gaps between the basin and mounting device, eliminating the need for time-consuming milling and ensuring easy installation and cleaning.
Smart Images

Figure IMGAF001_ABST
Abstract
Description
[0001] The invention relates to a sanitary basin, in particular a sanitary basin made from a curable casting compound, such as a sink, a washbasin or the like, for arrangement in and / or on a receiving device, comprising a basin section defining an inner receiving space with a basin wall and a collar section, in particular circumferential, with a lower surface, an upper surface opposite the lower surface and an edge surface, wherein the collar section extends from a free end of the basin wall in a direction away from the inner receiving space.
[0002] The invention further relates to a method for providing a sanitary basin for arrangement in and / or on a receiving device.
[0003] Furthermore, the invention relates to a sanitary system comprising a sanitary basin and a receiving device.
[0004] From EP 3 936 672 A1, a sanitary basin made of a hardenable casting compound for installation as a countertop basin or for flush mounting in a worktop is known. The sanitary basin comprises a circumferential collar section. For manufacturing reasons, a lateral demolding chamfer in the form of a beveled edge is provided on the collar section, forming the transition from an upper surface of the collar section to a lateral edge surface. In the case of installation as a countertop basin, the collar section rests on the upper surface of the worktop. In the case of flush mounting, the collar section rests on a step in the worktop such that the upper surface of the collar section is parallel to the upper surface of the worktop, in particular lying in a plane with the upper surface of the worktop.
[0005] However, a disadvantage of such a flush-mounted installation is that the lateral demolding slope creates a large and unsightly gap between the sink and the countertop. To reduce this gap, it has become common practice to remove the lateral demolding slope after the casting process in an additional, complex, and costly process, for example, by milling. Milling also generates dust, which requires complex disposal and necessitates enhanced occupational safety measures.
[0006] An object of the present invention is therefore to provide a sanitary basin and a sanitary system which can be manufactured simply and at low cost. Furthermore, a simple and cost-effective method for providing a sanitary basin is to be provided.
[0007] Another object of the present invention is to provide an alternative sanitary basin, an alternative method for providing a sanitary basin and an alternative sanitary system.
[0008] In one embodiment, the present invention solves the aforementioned problems in a sanitary basin, in particular a sanitary basin made of a curable casting compound, such as a sink, a washbasin or the like, for arrangement in and / or on a receiving device, comprising a basin section defining an inner receiving space with a basin wall and a collar section, in particular circumferential, with a lower surface, an upper surface opposite the lower surface and an edge surface, wherein the collar section extends from a free end of the basin wall in a direction away from the inner receiving space, in that the collar section has a transition from the upper surface to the edge surface with a rounding with a radius of less than 3 mm, preferably of a maximum of 2 mm, in particular of a maximum of 1 mm, in particular preferably of 1 mm.
[0009] In one embodiment, the present invention solves the aforementioned problems with a method for providing a sanitary basin for arrangement in and / or on a receiving device according to any one of claims 1 to 6, comprising the steps: Providing at least one mold for the sanitary basin; introducing a curable casting compound into the at least one mold; curing the casting compound, demolding the sanitary basin from the mold, and providing the demolded sanitary basin for installation as a countertop sanitary basin, as an undermount sanitary basin and / or for flush installation without post-processing, in particular without machining.
[0010] In one embodiment, the present invention solves the aforementioned problems with a sanitary system comprising a sanitary basin according to one of claims 1 to 6 and a receiving device, wherein the sanitary basin is arranged in and / or on the receiving device.
[0011] The rounding can have a radius of more than 0.01 mm, preferably more than 0.1 mm, and in particular more than 0.5 mm.
[0012] One of the advantages achieved is that, with flush-mounted installation using such a sanitary basin, a particularly small gap can be provided between the collar section and the mounting device. This eliminates the need for the time-consuming removal of a lateral demolding chamfer and rounded edge, resulting in a sanitary basin that is both cost-effective and easy to manufacture.
[0013] The receiving device may, for example, include a worktop with an opening for arranging the sanitary basin in and / or on it.
[0014] Further features, advantages and further embodiments of the invention are described below or become apparent therein.
[0015] According to an advantageous embodiment of the invention, the upper surface and the edge surface are inclined to each other at an angle of less than 96°, preferably less than 94°, in particular less than 92°, preferably 90°, and at an angle of more than 84°, in particular more than 86°, preferably more than 88°. One of the advantages achieved thereby is that, in the case of flush mounting, a small gap can be achieved between the edge surface and the receiving device.
[0016] According to a further advantageous embodiment of the invention, the collar section has a width, based on an extension in a direction away from the inner receiving space, of less than 20 mm, preferably a maximum of 15 mm, and more than 1 mm, particularly more than 5 mm, preferably more than 7.5 mm, and more particularly more than 10 mm. An advantage of this is that a sanitary basin requiring less material is provided. Furthermore, less installation space is required in the area of the receiving device for arranging such a sanitary basin.
[0017] According to a further advantageous embodiment of the invention, the collar section has a height of a maximum of 20 mm, preferably at least 4 mm and a maximum of 10 mm, in particular at least 5 mm and a maximum of 6 mm, and more than 1 mm, preferably at least 4 mm. One of the advantages achieved thereby is that a collar section is provided with minimal material usage, while at the same time ensuring a sufficiently high load-bearing capacity of the collar section and thus of the sanitary basin.
[0018] According to a further advantageous embodiment of the invention, the sanitary basin is designed for installation as a countertop basin, an undermount basin, and / or a flush-mounted basin. In particular, the sanitary basin is designed for installation as a countertop basin, an undermount basin, and a flush-mounted basin. This allows for the versatile use of a sanitary basin with a single geometry suitable for several different installation options. A countertop basin is particularly easy to install in and / or on the mounting structure. The sanitary basin can be designed such that the lower surface of the collar section, when installed in and / or on the mounting structure, at least partially rests against it. An advantage of an undermount basin is that edges where dirt and water can accumulate are avoided.It is conceivable that the sanitary basin is designed such that the upper surface of the collar section, when installed in and / or attached to the receiving device, at least partially rests against it. With a flush-mounted installation of the sanitary basin, the upper surface and one top surface of the receiving device lie in the same plane when installed in and / or attached to it. Flush mounting avoids edges where dirt and water can accumulate, thus providing an easy-to-clean sanitary basin. With a flush-mounted installation, the lower surface and / or the edge surface can, when installed in and / or attached to it, at least partially rest against the receiving device. The collar section can be positioned at a step corresponding to an opening in the receiving device.
[0019] It should be noted that the lower surface, the upper surface and the edge surface can each be arranged directly or indirectly, for example via an intermediate sealing and / or adhesive layer, on the receiving device.
[0020] According to a further advantageous embodiment of the invention, the basin section and the collar section are manufactured in one piece as a molded plastic part using a curable casting compound. Sanitary basins made from casting compounds offer a high degree of design freedom with regard to the shape of the sanitary basin. They are also characterized by a smooth and non-porous surface, which is particularly hygienic and easy to clean. In addition, such sanitary basins are extremely resistant to mechanical stress, which increases their service life.
[0021] Further important features and advantages of the invention will become apparent from the dependent claims, the drawings and the accompanying description of the figures based on the drawings.
[0022] It is understood that the features mentioned above and those to be explained below can be used not only in the combinations specified, but also in other combinations or on their own, without leaving the scope of the present invention.
[0023] Preferred embodiments and configurations of the present invention are shown in the drawings and are explained in more detail in the following description, wherein identical reference numerals refer to identical or similar or functionally identical components or elements.
[0024] This is shown in a schematic representation. Fig. 1 shows a part of a sanitary basin according to an embodiment of the present invention in a sectional view; Fig. 2a, 2 shows a sanitary system with a sanitary basin according to the embodiment in Figure 1 in a state arranged as a countertop sanitary basin in a spatial and in a sectional view; Fig. 3a, 3-legged sanitary system with a sanitary basin according to the embodiment in Figure 1 in a state arranged as an undermount sanitary basin in a spatial and in a sectional view; Fig. 4a, 4-legged sanitary system with a sanitary basin according to the embodiment in Figure 1 in a flush-mounted state in a spatial and in a sectioned view; and Fig. 5 steps of a method according to an embodiment of the present invention.
[0025] The Figure 1 shows a part of a sanitary basin according to an embodiment of the present invention in a sectional view.
[0026] The sanitary basin 1 has a basin section 3, which defines an inner receiving space 2, and a basin wall 4, and a collar section 5, in particular a circumferential one, with a lower surface 6, an upper surface 7 opposite the lower surface 6, and an edge surface 8. The collar section 5 extends from a free end 9 of the basin wall 4 in a direction away from the inner receiving space 2. Figure 1 Part of the pelvic wall 4 and the collar section 5 are shown.
[0027] In a detailed section, in Figure 1The collar section 5 of the sanitary basin 1 is shown on the left. The collar section 5 has a transition 10 from the upper surface 7 to the edge surface 8 with a rounding 11 having a radius 12 of 1 mm. Furthermore, the upper surface 7 and the edge surface 8 are inclined at an angle 13 of 90° to each other. The width 14 of the collar section 5, which extends in a direction away from the inner receiving space 2, is 15 mm. The collar section 5 also has a height 15 of 5 mm.
[0028] Basin section 3 and collar section 5 are manufactured as a single piece from a molded plastic component using a curable casting compound. Sanitary basin 1 is designed for installation as a countertop basin, an undermount basin, or a flush-mounted basin.
[0029] The Figures 2a and 2b show a sanitary system with a sanitary basin according to the embodiment in Figure 1in a state arranged as a countertop sanitary basin in a spatial and in a sectional view.
[0030] The sanitary system 101 comprises a receiving device 102 with a worktop 103, which is provided with an opening 104. The sanitary basin 1 is arranged in the opening 104 as a countertop sanitary basin, with the lower surface 6 of the collar section 5 partially resting on a top surface 107 of the worktop 103.
[0031] The Figures 3a and 3b show a sanitary system with a sanitary basin according to the embodiment in Figure 1 in a state arranged as an under-counter sanitary basin in a spatial and in a sectional view.
[0032] The sanitary basin 1 is arranged as an undermount sanitary basin on the underside 105 of a worktop 103 in the area of an opening 104. The upper surface 7 of the collar section 5 partially rests against the worktop 103.
[0033] The Figures 4a and 4b show a sanitary system with a sanitary basin according to the embodiment in Figure 1 in a flush-mounted state in a spatial and in a sectioned view.
[0034] The receiving device 102 of the sanitary system 101 comprises a worktop 103 with an opening 104. The opening 104 has a step 106, which is designed such that the upper surface 7 of the collar section 5 and a top surface 107 of the worktop 103 lie in a plane 108. The lower surface 6 of the collar section 5 rests against the step 106 of the worktop 103. The gap 109 between the edge surface 8 and the worktop 103 is 1.5 mm.
[0035] The Figure 5 shows steps of a method according to an embodiment of the present invention.
[0036] In the first step, S1, a mold for the sanitary basin 1 is prepared. In step S2, a curable casting compound is poured into the prepared mold. Subsequently, in step S3, the casting compound is cured. The cured casting compound could, for example, be a composite plastic consisting of a polymer matrix and an inorganic filler.
[0037] In a subsequent step S4, the sanitary basin 1 is demolded from the mold. The demolded sanitary basin 1 is then prepared in step S5 without any further processing, in particular without machining, for installation as a countertop sanitary basin, as an undermount sanitary basin, and for flush mounting. In other words, the sanitary basin 1 can be used for installation as a countertop sanitary basin, as an undermount sanitary basin, and for flush mounting in the receiving device 102 without any further processing of the mold of the sanitary basin 1. The time-consuming milling of the collar section 5 after demolding is unnecessary.
[0038] In summary, at least one embodiment of the present invention may have at least one of the following features and / or may provide at least one of the following advantages: Cost-effective and simple manufacturing. Variable installation options. Reduced gap between the mounting device and the sanitary basin. Reduced material and space requirements. Reduced edges. Easy installation. Smooth and non-porous surface. High durability.
[0039] Although the present invention has been described using preferred embodiments, it is not limited to these, but can be modified in many ways. Reference symbol list
[0040] 1 Sanitary basin 2 Inner receiving chamber 3 Basin section 4 Basin wall 5 Collar section 6 Lower surface 7 Upper surface 8 Edge surface 9 Free end of the basin wall 10 Transition 11 Rounding 12 Radius of the rounding 13 Angle 14 Width of the collar section 15 Height of the collar section 101 Sanitary system 102 Receiving device 103 Worktop 104 Opening 105 Underside of the worktop 106 Step 107 Top of the worktop 108 Level 109 Gap S1-S5 Steps of the procedure
Claims
1. Sanitary basin (1), in particular a sanitary basin (1) made of a curable casting compound, such as a sink, a washbasin or the like, for arrangement in and / or on a receiving device (102), comprising a basin section (3) defining an inner receiving space (2) with a basin wall (4) and a collar section (5), in particular circumferential, with a lower surface (6), an upper surface (7) opposite the lower surface (6) and an edge surface (8), wherein the collar section (5) extends from a free end (9) of the basin wall (4) in a direction away from the inner receiving space (2), characterized by the fact that the collar section (5) has a transition (10) from the upper surface (7) to the edge surface (8) with a rounding (11) with a radius (12) of less than 3 mm, preferably of a maximum of 2 mm, in particular of a maximum of 1 mm, in particular preferably of 1 mm.
2. Sanitary basin (1) according to claim 1, characterized by the fact that the upper surface (7) and the edge surface (8) are inclined to each other at an angle (13) of less than 96°, preferably less than 94°, in particular less than 92°, preferably 90°, and at an angle (13) of more than 84°, in particular more than 86°, preferably more than 88°.
3. Sanitary basin (1) according to one of claims 1-2, characterized by the fact that the collar section (5) has a width (14), with respect to an extent in a direction away from the inner receiving space (2), of less than 20 mm, preferably of a maximum of 15 mm, in particular preferably of 15 mm, and more than 1 mm, in particular more than 5 mm, preferably more than 7.5 mm, in particular more than 10 mm.
4. Sanitary basin (1) according to one of claims 1-3, characterized by the fact thatthe collar section (5) has a height (15) of a maximum of 20 mm, preferably of at least 4 mm and a maximum of 10 mm, in particular of at least 5 mm and a maximum of 6 mm, and more than 1 mm, preferably at least 4 mm.
5. Sanitary basin (1) according to one of claims 1-4, characterized by the fact that the sanitary basin (1) is designed for installation as a surface-mounted sanitary basin and / or as an undermounted sanitary basin and / or for flush installation.
6. Sanitary basin (1) according to one of claims 1-5, characterized by the fact that the basin section (3) and the collar section (5) are manufactured in one piece as a plastic molded part using a hardenable casting compound.
7. Method for providing a sanitary basin (1) for arrangement in and / or on a receiving device (102) according to any one of claims 1 to 6, comprising the steps: - providing (S1) at least one mold for the sanitary basin (1), - introducing (S2) a curable casting compound into the at least one mold, - curing (S3) the casting compound, - demolding (S4) the sanitary basin (1) from the mold, - providing (S5) the demolded sanitary basin (1) for installation as a countertop sanitary basin, as an undermount sanitary basin and / or for flush installation without post-processing, in particular without machining.
8. Sanitary system (101) comprising a sanitary basin (1) according to any one of claims 1 to 6 and a receiving device (102), wherein the sanitary basin (1) is arranged in and / or on the receiving device (102).
Citation Information
Patent Citations
Fireclay apron-front sink with intergrated ledge and self-trimming features
US20210332578A1
Kitchen sink with metal basin container embedded in quartz stone panel and manufacturing method of kitchen sink
CN111894088A
Sink and corresponding manufacturing method
EP3936672A1