EP3936672A1 - Sink and corresponding manufacturing method - Google Patents
Sink and corresponding manufacturing method Download PDFInfo
- Publication number
- EP3936672A1 EP3936672A1 EP21170543.9A EP21170543A EP3936672A1 EP 3936672 A1 EP3936672 A1 EP 3936672A1 EP 21170543 A EP21170543 A EP 21170543A EP 3936672 A1 EP3936672 A1 EP 3936672A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sink
- rim
- end portion
- peripheral end
- worktop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/14—Wash-basins connected to the waste-pipe
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/18—Sinks, whether or not connected to the waste-pipe
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/18—Sinks, whether or not connected to the waste-pipe
- E03C1/182—Sinks, whether or not connected to the waste-pipe connected to the waste-pipe
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/32—Holders or supports for basins
- E03C1/33—Fastening sinks or basins in an apertured support
Definitions
- the present invention relates to a sink and to a corresponding manufacturing method.
- the rim of the perforated seat of the worktop and the rim of the sink are milled so that each has a contact surface that is inclined with respect to the vertical (in the operating condition of the sink);
- the rim of the perforated seat of the worktop is subjected to grinding, providing a sort of frame defined by orthogonal walls (one vertical and one horizontal) which accommodate the peripheral rim of the sink, which is also subjected to grinding for this purpose, taking care to leave (between the frame and the rim of the sink) tolerances suitable for the insertion of sealing compounds and/or adhesives.
- sinks made of composite material are manufactured by injection molding: this technology necessarily leaves on the rim of the sink a draft wall which then extends into a curved blending surface.
- the sink made of composite material is suitable for "standard” mounting, but if it has to be “flush” mounted it must necessarily be machined by removing material from the rim and therefore it is not possible to provide for a new and different use thereof in standard mounting.
- the aim of the present invention is to provide a sink that is capable of improving the background art in one or more of the aspects mentioned above.
- an object of the invention is to provide a sink, preferably made of composite material, that can be utilized without modifications in at least two different installation solutions, thus reducing the cost and the difficulties of installation linked to the milling machining of the rim of the sink.
- Another object of the invention is to provide a method for manufacturing a sink according to the invention.
- Another object of the invention is to provide a sink that is highly reliable, relatively easy to provide and has competitive costs.
- the sink according to the invention comprises a concave body 2 and a free rim 3 which is connected to the concave body 2.
- the free rim 3 of the sink is recognizable because it constitutes the portion of the sink 1 that protrudes outward with respect to the concave body 2.
- the latter comprises in turn side walls 21 and a bottom 22.
- the sink 1 is configured to be installed on a worktop P, shown in Figures 1, 2 , 5 and 6 .
- the worktop P is for example a top of a kitchen, of a bathroom cabinet or the like.
- the overall shape, in top plan view, of the sink 1 can be any: the figures show, by way of example, a sink 1 having a substantially rectangular plan shape, but the shape might also be different, for example oval or round or shaped in another way. Furthermore, the sink may have multiple basins.
- the rim 3 comprises a peripheral end portion 4 which, along a vertical sectional plane (with the sink 1 in the operating configuration), comprises a first part 41 and a second part 42 which are substantially rectilinear, the angle ⁇ formed between an extension of the first part 41 and the second part 42 being comprised between 1° and 45°.
- the peripheral portion of the rim 3 has two perimetric surfaces which are extended along the entire thickness of the rim 3 of the sink 1 and around the perimeter of the sink 1: a first rectilinear surface which is extended along the first part 41 and a second rectilinear surface which extends along the second part 42.
- the angle between the extension of the first surface and the second surface is comprised between 1° and 45°, like the one comprised between the first part 41 and the second part 42.
- the first part 41 of the peripheral end portion 4 is inclined with respect to a vertical axis V by an angle ⁇ comprised between 0° and 9° when the sink 1 is in the operating configuration.
- this inclination in fact fulfills the role of the "draft" needed in order to extract the sink from the mold.
- the sink 1 according to the invention is in fact made of composite material and is manufactured by injection molding.
- the first part 41 and the second part 42 of the peripheral end portion 4 are provided together with the rim 3 and monolithically with said body 2 in the same injection molding operation.
- the rim 3 comprises a lower surface 31 and an upper surface 32 which are opposite and substantially parallel to each other and are visible in the sectional detail view of Figure 4 ; the lower surface 31 and the upper surface 32 are connected by the peripheral end portion 4.
- the lower surface 31 is directly adjacent to the first part 41 of the peripheral end portion 4 and the upper surface 32 is directly adjacent to the second part 42 of the peripheral end portion 4.
- the lower surface 31 comprises an external portion 33 which is subjected to grinding or on which a removal of material is equivalently provided, and which therefore is the part of the lower surface that is nearest the first part 41.
- the method for manufacturing the sink 1 provides for the step of providing, in the same operation as molding a moldable material, the body 2 and the free rim 3 of the sink 1, the free rim 3 being molded so as to have a peripheral end portion 4 which, along a vertical sectional plane with the sink in the operating configuration, comprises a first part 41 and a second part 42 which are substantially rectilinear, the angle formed between an extension of the first part and the second part being comprised between 1° and 45°.
- the method according to the invention provides for the step of providing an operation for removing material 33 at a lower surface 31 of the rim 3 in order to provide an external portion 33 subjected to grinding that is proximate to the first part 41.
- the sink 1 according to the invention can be installed equally in a "standard” manner, as in Figure 1 , or in a “flush” manner, as in Figure 2 , without the need for additional operations on the sink, as is evident also from Figures 5 and 6 .
- the rim of the sink 1 thus provided does not need to be machined again as a function of the chosen installation (as occurred instead in the cases of the background art), but is already aesthetically finished, adapting to both shown types of installation.
- the inclination of the second part 42 which in the installed configuration of the sink is the one that is installed highest, constitutes a seat for the application of a sealing compound M when the sink 1 is installed "flush".
- the distance between the rim 3 of the sink 1 and the worktop P is reduced even in the absence of additional machining on the sink, with a consequent reduction of the quantity of compound M applied during finishing in the slit between the two.
- An additional advantage deriving from the invention 1 is to reduce the number of types of sinks that have to be kept in stock for the different installations.
- the materials used, as well as the contingent shapes and dimensions may be any according to the requirements and the state of the art.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
Description
- The present invention relates to a sink and to a corresponding manufacturing method.
- In the background art, in the reference field, it is known that sinks have shapes dedicated to the specific techniques for fitting on the worktop.
- In general, substantially four main installation methods are known to which four types of sinks correspond:
- overmount (or "standard") installation, in which the perforated seat on the worktop is smaller than the perimeter of the sink and the latter is inserted from above with its perimetric rim surmounting the worktop around the perforated seat;
- "undermount" installation, in which the perforated seat on the worktop is smaller than the perimeter of the sink and the latter is inserted from below and glued below the worktop;
- installation of the "integrated" type, which differs from the "undermount" installation in that both the sink and the worktop are machined (for example by grinding or polishing) at the coupling region between the two in order to avoid curved parts and give continuity to the installation;
- "flush" installation, which is subdivided into the solution with countersunk milling and the one with step milling: in short,
- in the first solution (countersunk milling), the rim of the perforated seat of the worktop and the rim of the sink are milled so that each has a contact surface that is inclined with respect to the vertical (in the operating condition of the sink);
- in the second solution (step milling), instead, the rim of the perforated seat of the worktop is subjected to grinding, providing a sort of frame defined by orthogonal walls (one vertical and one horizontal) which accommodate the peripheral rim of the sink, which is also subjected to grinding for this purpose, taking care to leave (between the frame and the rim of the sink) tolerances suitable for the insertion of sealing compounds and/or adhesives.
- The solutions that are known and have been described so far entail that once an installation has been chosen one must choose the suitable sink since evidently a sink adapted for a certain installation mode cannot be used in a different mode.
- This entails as an unwanted consequence that an installation technician has to keep in stock a large number of types of sinks, depending on the installations that he will be called to perform.
- In particular, sinks made of composite material are manufactured by injection molding: this technology necessarily leaves on the rim of the sink a draft wall which then extends into a curved blending surface.
- In this case the sink made of composite material is suitable for "standard" mounting, but if it has to be "flush" mounted it must necessarily be machined by removing material from the rim and therefore it is not possible to provide for a new and different use thereof in standard mounting.
- Other limitations of the background art are linked to the fact that the processes on the rim of the sink (for example, in the case of a "flush" installation in general), are relatively complex and expensive (affecting the cost of the sink by even up to 30%).
- Another limitation is that in the case of a "flush" installation the worktop also has to be machined and this entails that is made of high-value material (for example composite, natural stone or compact HPL).
- The aim of the present invention is to provide a sink that is capable of improving the background art in one or more of the aspects mentioned above.
- Within this aim, an object of the invention is to provide a sink, preferably made of composite material, that can be utilized without modifications in at least two different installation solutions, thus reducing the cost and the difficulties of installation linked to the milling machining of the rim of the sink.
- Another object of the invention is to provide a method for manufacturing a sink according to the invention.
- Another object of the invention is to provide a sink that is highly reliable, relatively easy to provide and has competitive costs.
- This aim and these and other objects that will become more apparent hereinafter are achieved by a sink according to
claim 1, optionally provided with one or more of the characteristics of the dependent claims. - Further characteristics and advantages of the invention will become more apparent from the description of a preferred but not exclusive embodiment of the sink according to the invention, illustrated by way of non-limiting example in the accompanying drawings, wherein:
-
Figure 1 is a view of a sink according to the invention mounted in the operating configuration on a worktop and installed in the "standard" manner; -
Figure 2 is a view of a sink according to the invention mounted in the operating configuration on a worktop and installed in the "flush" manner; -
Figure 3 is a sectional view, taken along a vertical plane, of the sink according to the invention; -
Figure 4 is a sectional view, taken along a vertical plane, of a rim of the sink of the preceding figure; -
Figure 5 is a sectional view, taken along a vertical plane, of a rim of the sink according to the invention when installed as inFigure 1 ; -
Figure 6 is a sectional view, taken along a vertical plane, of a rim of the sink according to the invention when installed as inFigure 2 . - With reference to the figures and particularly to the sectional view of
Figure 3 , the sink according to the invention, generally designated by thereference numeral 1, comprises aconcave body 2 and afree rim 3 which is connected to theconcave body 2. - The
free rim 3 of the sink is recognizable because it constitutes the portion of thesink 1 that protrudes outward with respect to theconcave body 2. The latter comprises inturn side walls 21 and abottom 22. - The
sink 1 is configured to be installed on a worktop P, shown inFigures 1, 2 ,5 and 6 . The worktop P is for example a top of a kitchen, of a bathroom cabinet or the like. - The overall shape, in top plan view, of the
sink 1 can be any: the figures show, by way of example, asink 1 having a substantially rectangular plan shape, but the shape might also be different, for example oval or round or shaped in another way. Furthermore, the sink may have multiple basins. - When reference is made hereinafter to an operating configuration of the sink, this means the configuration in which the
sink 1 is fitted into place and is intended to operate. - With reference also to the detail
Figure 4 , according to the invention, advantageously, therim 3 comprises aperipheral end portion 4 which, along a vertical sectional plane (with thesink 1 in the operating configuration), comprises afirst part 41 and asecond part 42 which are substantially rectilinear, the angle α formed between an extension of thefirst part 41 and thesecond part 42 being comprised between 1° and 45°. - Essentially and in other words, at its thickness, the peripheral portion of the
rim 3 has two perimetric surfaces which are extended along the entire thickness of therim 3 of thesink 1 and around the perimeter of the sink 1: a first rectilinear surface which is extended along thefirst part 41 and a second rectilinear surface which extends along thesecond part 42. - Therefore, the angle between the extension of the first surface and the second surface is comprised between 1° and 45°, like the one comprised between the
first part 41 and thesecond part 42. - According to an optional characteristic, the
first part 41 of theperipheral end portion 4 is inclined with respect to a vertical axis V by an angle β comprised between 0° and 9° when thesink 1 is in the operating configuration. - This makes it possible advantageously to provide the sink by molding, for example injection molding of a composite material: this inclination in fact fulfills the role of the "draft" needed in order to extract the sink from the mold.
- According to another optional characteristic, the
sink 1 according to the invention is in fact made of composite material and is manufactured by injection molding. Thefirst part 41 and thesecond part 42 of theperipheral end portion 4 are provided together with therim 3 and monolithically with saidbody 2 in the same injection molding operation. - This allows a reduction of the overall costs and the need for additional machining after the
sink 1 has been provided. - In greater detail, the
rim 3 comprises alower surface 31 and anupper surface 32 which are opposite and substantially parallel to each other and are visible in the sectional detail view ofFigure 4 ; thelower surface 31 and theupper surface 32 are connected by theperipheral end portion 4. - Preferably, the
lower surface 31 is directly adjacent to thefirst part 41 of theperipheral end portion 4 and theupper surface 32 is directly adjacent to thesecond part 42 of theperipheral end portion 4. - Preferably, moreover, the
lower surface 31 comprises anexternal portion 33 which is subjected to grinding or on which a removal of material is equivalently provided, and which therefore is the part of the lower surface that is nearest thefirst part 41. - According to the invention, the method for manufacturing the
sink 1 provides for the step of providing, in the same operation as molding a moldable material, thebody 2 and thefree rim 3 of thesink 1, thefree rim 3 being molded so as to have aperipheral end portion 4 which, along a vertical sectional plane with the sink in the operating configuration, comprises afirst part 41 and asecond part 42 which are substantially rectilinear, the angle formed between an extension of the first part and the second part being comprised between 1° and 45°. - Optionally, the method according to the invention provides for the step of providing an operation for removing
material 33 at alower surface 31 of therim 3 in order to provide anexternal portion 33 subjected to grinding that is proximate to thefirst part 41. - The
sink 1 according to the invention can be installed equally in a "standard" manner, as inFigure 1 , or in a "flush" manner, as inFigure 2 , without the need for additional operations on the sink, as is evident also fromFigures 5 and 6 . In fact, the rim of thesink 1 thus provided does not need to be machined again as a function of the chosen installation (as occurred instead in the cases of the background art), but is already aesthetically finished, adapting to both shown types of installation. - Furthermore, the inclination of the
second part 42, which in the installed configuration of the sink is the one that is installed highest, constitutes a seat for the application of a sealing compound M when thesink 1 is installed "flush". Advantageously, by virtue of the provision according to the invention, the distance between therim 3 of thesink 1 and the worktop P is reduced even in the absence of additional machining on the sink, with a consequent reduction of the quantity of compound M applied during finishing in the slit between the two. - In order to best understand this advantage, it should be considered that in sinks provided according to the background art this region is usually curved and if one wants to install them "flush" the quantity of compound M needed is greater, with an aesthetically unacceptable finish.
- During installation, use of an adhesive C is provided at the
portion 33 subjected to grinding of thelower surface 31. - An additional advantage deriving from the
invention 1 is to reduce the number of types of sinks that have to be kept in stock for the different installations. - The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the accompanying claims.
- All the details may furthermore be replaced with other technically equivalent elements.
- In practice, the materials used, as well as the contingent shapes and dimensions, may be any according to the requirements and the state of the art.
- The disclosures in Italian Patent Application No.
102020000016366 - Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.
Claims (8)
- A sink (1) configured to be installed on a worktop (P), comprising a concave body (2) and a free rim (3) which is connected to the concave body (2) and protrudes externally with respect to the latter (2),
characterized in that
the free rim (3) comprises a peripheral end portion (4), which, along a vertical sectional plane with the sink in the operating configuration, comprises a first part (41) and a second part (42) which are substantially rectilinear, an angle formed between an extension of the first part and the second part being comprised between 1° and 45°. - The sink (1) according to claim 1, characterized in that the first part (41) of the peripheral end portion (4) is inclined with respect to a vertical axis by an angle comprised between 0° and 8° when the sink (1) is in the operating configuration.
- The sink (1) according to claim 1 or 2, characterized in that it is made of composite material and is manufactured by injection molding, said first part (41) and said second part (42) of the peripheral end portion (4) being provided together with said rim (3) and monolithically with said body (2) in the same injection molding operation.
- The sink (1) according to one or more of the preceding claims, characterized in that said free rim (3) comprises a lower surface (31) and an upper surface (32) which are opposite and substantially mutually parallel, the lower surface (31) and the upper surface (32) being connected by the peripheral end portion (4).
- The sink (1) according to one or more of the preceding claims, characterized in that the lower surface (31) is directly adjacent to the first part (41) of the peripheral end portion (4) and the upper surface (32) is directly adjacent to the second part (42) of the peripheral end portion (4).
- The sink (1) according to one or more of claims 4 or 5, characterized in that the lower surface (31) comprises an external portion subjected to grinding.
- A method for manufacturing a sink (1), comprising the step of providing, in the same operation for molding a moldable material, a body (2) and a free rim (3) of the sink (1), characterized in that said free rim (3) is molded so as to have a peripheral end portion (4) which, along a vertical sectional plane with the sink in the operating configuration, comprises a first part (41) and a second part (42) which are substantially rectilinear, an angle formed between an extension of the first part and the second part being comprised between 1° and 45°.
- The method according to claim 7, characterized in that it further provides for the step of providing an operation for removing material (33) at a lower surface (31) of the rim (3) in order to provide an external portion (33) subjected to grinding that is proximate to the first part (41).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102020000016366A IT202000016366A1 (en) | 2020-07-07 | 2020-07-07 | SINK AND RELATED MANUFACTURING METHOD. |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3936672A1 true EP3936672A1 (en) | 2022-01-12 |
Family
ID=72644678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21170543.9A Pending EP3936672A1 (en) | 2020-07-07 | 2021-04-26 | Sink and corresponding manufacturing method |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3936672A1 (en) |
IT (1) | IT202000016366A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3613128A (en) * | 1970-05-18 | 1971-10-19 | Unarco Industries | Self-rimming porcelain enameled sink |
DE3824242A1 (en) * | 1988-07-16 | 1990-01-18 | Roemmler H Resopal Werk Gmbh | Thermoplastic moulding and process for its production |
EP0531590A1 (en) * | 1990-05-03 | 1993-03-17 | Castle Neroche (Interiors) Limited | Improvements in or relating to worktop assemblies |
EP1905905A1 (en) * | 2006-09-15 | 2008-04-02 | BLANCO GmbH + Co KG | Sink for inserting into a cut-out opening in a work surface |
-
2020
- 2020-07-07 IT IT102020000016366A patent/IT202000016366A1/en unknown
-
2021
- 2021-04-26 EP EP21170543.9A patent/EP3936672A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3613128A (en) * | 1970-05-18 | 1971-10-19 | Unarco Industries | Self-rimming porcelain enameled sink |
DE3824242A1 (en) * | 1988-07-16 | 1990-01-18 | Roemmler H Resopal Werk Gmbh | Thermoplastic moulding and process for its production |
EP0531590A1 (en) * | 1990-05-03 | 1993-03-17 | Castle Neroche (Interiors) Limited | Improvements in or relating to worktop assemblies |
EP1905905A1 (en) * | 2006-09-15 | 2008-04-02 | BLANCO GmbH + Co KG | Sink for inserting into a cut-out opening in a work surface |
Also Published As
Publication number | Publication date |
---|---|
IT202000016366A1 (en) | 2022-01-07 |
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