EP2703571A1 - Hygienic device for sanitary fixtures and method for producing it - Google Patents
Hygienic device for sanitary fixtures and method for producing it Download PDFInfo
- Publication number
- EP2703571A1 EP2703571A1 EP13176208.0A EP13176208A EP2703571A1 EP 2703571 A1 EP2703571 A1 EP 2703571A1 EP 13176208 A EP13176208 A EP 13176208A EP 2703571 A1 EP2703571 A1 EP 2703571A1
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- EP
- European Patent Office
- Prior art keywords
- solid block
- cylindrical geometry
- hole
- perforated element
- mould
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
- E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
- E03D9/032—Devices connected to or dispensing into the bowl
Definitions
- the present invention refers to a hygienic device for sanitary fixtures of the type that is suitable for being hung, by means of a suitable hook, to the perimetrical edge of a sanitary fixture, such as for example a WC, as well as to a relative production method of such a hygienic device for sanitary fixtures.
- Known hygienic devices can be divided into so-called “solid tablets”, comprising a detergent and/or deodorant means in the solid state, and so-called “liquid tablets”, comprising WC detergent and/or deodorant means in the liquid state dispensed through a container.
- the first type of hygienic devices for WCs generally comprises a perforated dispensing element, called “cage”, which is provided with a hook for being engaged to the edge of the WC, and inside which detergent and/or deodorant means in the form of a solid block, also called “soap”, are contained.
- the detergent and/or deodorant means in the solid state is currently manufactured, generally, through an extrusion process.
- cage devices when applied inside the WC, they are bulky and have an appearance that can be considered unattractive.
- WO 2007/107750 A1 shows a solid detergent means, which has substantially the entire outer surface that is exposed to the discharge water, inside which the plate-shaped end of the hook, for being suspended to the perimetrical edge of the WC, is directly embedded.
- the plate is inserted in a cut made in the solid detergent block that, through a compressing step, is enclosed around it.
- EP 1891197 A1 describes a process for making a solid detergent block that is suitable for being suspended to an edge of a WC, in which one part of the hook is inserted in the solid block and such a solid block can undergo compression so as to encapsulate the part of the hook.
- the main drawback of such devices that are made by inserting a part of the hook in the solid block and by exerting a compression so as to close the solid block around the hook consists of the hold of the coupling between the hook and the solid block during the consumption of the solid block.
- the area of contact between the hook and solid block is subject to the phenomenon of delamination, due to repeated flushing of discharge water, and to the progressive consumption of the solid block. This phenomenon could cause the solid block to become detached from the hook and therefore a premature falling of the solid block before it has been substantially used up.
- a further drawback consists of carrying out the production process that requires the insertion and the correct positioning of many separate elements, in particular the solid block and the hook, into a mould in which they are fixedly attached to one another through compression.
- a hygienic device for a WC comprising a solid detergent and/or deodorant means
- application WO 2011/141720 A1 teaches to pierce through a solid detergent block on a plate placed either at the front or at the back thereof.
- the size of the structure is smaller with respect to cage devices, but it still has a support structure that is external with respect to the solid block, which is visible in use, especially if of the front type, and that affects the circulation of the discharge water around the solid block, and consequently the uniformity of its consumption negatively.
- the purpose of the present invention is that of making a hygienic device for sanitary fixtures and a relative production method that makes it possible to optimise the circulation of discharge water around the solid detergent block so as to achieve the most homogeneous and even consumption possible with respect to the different types of WCs.
- Another purpose of the present invention is that of making a hygienic device for sanitary fixtures and a relative production method for minimising the risk of premature detachment of the solid block from the hooking means during its use.
- a further purpose is that of making a hygienic device for sanitary fixtures and a relative production method that optimise the result in terms of its appearance.
- Another purpose of the present invention is that of making a hygienic device for sanitary fixtures and a relative production method that are particularly simple and functional, and have low cost.
- a hygienic device for sanitary fixtures is shown, wholly indicated with 10, comprising a detergent and/or deodorant means in the form of solid block 20, made of a malleable extruded paste, and means 30 for hooking to a perimetrical edge of a WC.
- the hooking means 30 comprise a first engaging portion 31 for engaging to the WC, in the example shaped as a flexible hook that can have variable shapes and sizes.
- the hooking means 30 also comprise a second portion for engaging the solid block 20, which, when the product is finished, is embedded in the solid block 20 and that, according to the invention, consists of a perforated element 32.
- the perforated element 32 comprises a through hole 33, or possibly many through holes 33 ( figure 9 ) that are separated by a sect 34 and that are surrounded by a perimetrical wall 35.
- Each hole 33 can have, in general, any shape.
- the hole 33 can have, on the outline wall, at least one guiding or engaging projection 36, 36' that can be shaped in various ways and protruding towards the inside of the hole for coupling with an extruded body of detergent and/or deodorant material having a cylindrical geometry 4 during the moulding of the device 10 according to the invention.
- Figure 8 shows, for example, two guiding projections 36 that face one another in opposite points of the hole 33, which are suitable for engaging corresponding recesses 6 matching the body having cylindrical geometry 4.
- Figure 17 shows a plurality of engagement projections 36', that are made in the form of wedges projecting, for some millimetres, towards the inside of the hole 33, equally radially spaced apart along the wall 35 of the perforated element 32, suitable for engraving the surface of the body having cylindrical geometry 4.
- Such engagement projections 36' alternatively to the guiding projections 36 shown in figure 8 , could be provided in each of the other embodiments that have been shown and described.
- the perimetrical wall 35 of the perforated element 32 can have an external outline surface of any shape and, in the examples, it is shown as an example in the shape of a petal or circular.
- the perforated element 32 is ring-shaped.
- the flat dimensions of the perforated element 32 are, in general, smaller or, at the most, the same as those of the solid block 20, so as to be completely embedded in the block itself and thus hidden from sight.
- the perforated element 32 could also have greater dimensions with respect to the solid block and project from it even when the product is new, according to an embodiment that has not been shown. Also in this case it will be considered a perforated element 32 embedded in the solid block, since the portion of perforated element embedded in the solid block is responsible for holding the solid block on the hooking means.
- the perforated element 32 has an uneven thickness in the direction that is perpendicular to the plane on which it lies, since at least one element 37 is provided protruding from at least one side of the perforated element 32, which forms a discontinuity in the surface of the perimetrical wall 35.
- Figures 4 and from 11 to 15 show example embodiments of elements projecting 37 with respect to the thickness of the perforated element 32, for example consisting of spikes or pins that are distributed radially according to various configurations on the perimetrical wall 35.
- the projecting elements 37 can have a height that is equal to the thickness of the perforated element 32, but that in any case is lower with respect to the thickness of the solid block 20, so as to not project from the finished product before being used.
- the projecting elements 37 have the main function of helping to place the hooking means into the mould correctly during the production of the device 10 according to the invention and of preventing it from rotating during the moulding step.
- the projecting elements 37 have the further function of ensuring a greater hold of the moulded solid block on the perforated element, by increasing the surface of contact and introducing surfaces of contact having different inclinations.
- the discontinuity of the upper and/or lower surfaces of the wall 35 can also be made through recesses, that identify a plurality of knurlings 37', substantially extending for the entire upper and/or lower surface of the perforated element 32, except for a flat section on each of the upper and/or lower surfaces placed in a position that is diametrically opposite with respect to the engaging portion 31 for engaging to the WC.
- the knurlings 37' which could be indifferently made also in the form of projections, are arranged radially on the wall 35 and help better convey the paste of the solid block so as to be distributed in a radial manner from the inside outwards during moulding.
- the flat section that in the illustrated example has a thickness equal to the maximum distance between the spikes of the knurlings 37' present on the opposite faces of the perforated element 32, has the function of strengthening it in the point of greatest tensile stress during the moulding step derived from the pressure exerted by squashing the body having cylindrical geometry 4.
- a collar 38 is moreover shown, arranged in the portion of transition between the first engaging portion 31 for engaging to the WC and the second engaging portion to the solid block 20, which could be present in any of the further embodiments shown and described.
- the collar 38 in addition to being an aid for the manipulation of the hooking means on the production line, helps to place the hooking means correctly inside the mould so as to keep them in position during the compression of the body having cylindrical geometry 4.
- the solid block 20 of the device 10 comprises, at the hole 33 of the perforated element 32, an internal portion 21, which is inside the hole 33, made from the outset in a unique cohesive piece. This means that at the hole 33, along the entire thickness of the solid block 20, there are no joining surfaces between different parts of the solid block 20.
- the solid block 20 comprises, moreover, an intermediate portion 22, that is adjacent to the internal portion 21 passing in the hole 33 and facing the perimetrical wall 35, in which facing surfaces of the solid block are in contact with the perimetrical wall 35 of the perforated element 32 on opposite sides.
- the solid block 20 comprises an external perimetrical portion 23 that is obtained by joining two distinct layers of the solid block 20 that have come into contact with one another during moulding.
- Figures 2 and 3 show an embodiment in which it is possible to identify two distinct layers of the solid block 20 in contact with one another along a joining surface 24, shown only as an example at about half the thickness of the solid block 20.
- the joining surface 24 can be emphasised to a greater or lesser extent and thus possible to identify in the section of the finished solid block rather than on the side wall thereof.
- the external perimetrical portion 23 of the solid block 20 may not have a distribution that is symmetrical with respect to the perforated element 32, but rather have a greater volume on one side of the perforated element 32, in figure 2 on the side opposite the hook 31, depending on the shape of the mould.
- the solid block 20 comprises, at each hole 33, an internal portion passing in the hole 33 and made in a unique cohesive piece.
- a cross 40 or other element that has been moulded transversally with respect to the hole 33 has been provided, which possibly in combination with the embodiment of an enlarged portion 39 at the end of the engaging portion 31 in the shape of a flexible hook, as shown in figure 16 , prevents the hooking means 30 from becoming stuck together.
- the cross 40 generates a series of openings with dimensions that are smaller with respect to the hook-shaped portion.
- the cross 40 is present in the hooking means only as an intermediate configuration for storing raw material and is then immediately removed, after picking up the hooking means and before the coupling thereof with the body having cylindrical geometry 4, as shown in figure 17 , which shows the moulding configuration.
- the hygienic device for sanitary fixtures according to the invention is preferably made through the succession of the following steps schematically shown in figure 1 :
- the body having cylindrical geometry 4 of detergent and/or deodorant material could be made also according to a process other than extrusion.
- body having cylindrical geometry 4 we mean, according to the invention, a body that is identified by a curve, called a directrix curve, intersected by lines that are parallel to one another, called generatrix lines, which are parallel to a predetermined direction X.
- the body with cylindrical geometry 4 is limited at the ends by two transversal flat sections, or bases, which are parallel to the plane comprising the directrix curve.
- the directrix which is always a closed line, can be for example a circle, an ellipse, a polygon, i.e. it can generally have any shape. Some examples are shown in figures 7 to 10 .
- the hole 33 of the perforated element 32 substantially has the same shape and size as the base of the body having cylindrical geometry 4 so as to be suitable for being engaged with it.
- the body having cylindrical geometry 4 is arranged in the perforated element 32 coaxially with respect to it, that is to say with the axis X, corresponding to the extrusion axis, arranged perpendicularly to the plane containing the perforated element 32.
- the arrangement of the group consisting of the body with cylindrical geometry 4 and the perforated element 32 inside the mould 5, is carried out so as to place the element with cylindrical geometry with the axis X parallel to the moulding direction, that is to say the direction in which there is the compression.
- the body having cylindrical geometry 4 is kept in position inside the hole 33 in the step of positioning into the mould 5 through mechanical interference with the relative hole 33, that is, it is introduced into the mould 5 in a pre-assembled condition.
- the engagement projections 36' which are radially spaced apart along the wall 35 of the perforated element 32, are suitable for engaging with a slight interference to the body having cylindrical geometry 4 so as to keep it in position during the positioning of the group into the mould. Indeed, since the body having cylindrical geometry 4 made of detergent and/or deodorant means, is typically made up of a malleable paste, the engagement projections 36' cause light cuts on the surface thereof when the solid body 4 is forced inside the perforated element 32 and keep it in the thus predetermined position.
- the positioning step of the hooking means 30 and of the at least one body having cylindrical geometry 4 into the mould 5 is assisted by the presence of the discontinuities of the surfaces of the wall 35, made up of the protruding or recessed elements 37, 37' with respect to the at least one side of the perforated element 32 and that are suitable for giving the perforated element a variable thickness and for engaging to corresponding recesses or projections matching the mould (not shown).
- a subsequent step of removing the cross 40 precedes the step of placing, into the mould, the at least one body, having cylindrical geometry 4 arranged in engagement inside the through hole 33 of the perforated element 32 of the hooking means 30.
- extrusion 2 we mean both a semi-finished product made in a single piece, and a semi-finished product obtained through co-extrusion of two or more detergent and/or deodorant materials, for example coaxial with respect to the axis X, as schematically shown in figure 17 .
- the step of compressing the body having cylindrical geometry 4 does not substantially modify the density of the malleable paste forming the detergent and/or deodorant means.
- the production method of a hygienic device for sanitary fixtures according to the invention has the advantage of allowing a rapid and precise placing of the solid block and of the hooking means in a mould, which can be actuated also with automatic means.
- a further advantage of the method according to the invention comes from the redistribution of the malleable paste, which forms the solid block, around the hooking means during the moulding operation.
- the hygienic device for sanitary fixtures and the relative production method, object of the present invention have the advantage of keeping a substantial portion of the detergent and/or deodorant material in the form of a unique cohesive piece supported by gravity in use by the lower outline of the hole of the perforated element, substantially preventing it from accidentally falling off during use.
- the hygienic device for sanitary fixtures and the relative production method thus conceived can undergo numerous modifications and variants, all covered by the invention, moreover, all the details can be replaced by technically equivalent elements.
- the materials used, as well as the dimensions, can be any according to the technical requirements.
Abstract
is made according to a method comprising the steps of:
- placing, into a mould (5), at least one body having cylindrical geometry (4) of detergent and/or deodorant material and the hooking means (31) comprising an engaging portion to the solid block made of a perforated element (32), in which the body having cylindrical geometry (4) is arranged in engagement inside at least one through hole (33) of the perforated element (32), in which the body having cylindrical geometry (4) is identified by a curve, of any shape, in the points in which lines pass parallel to one another,
- compressing the body having cylindrical geometry (4) so as to form a solid block (20) around the perforated element (32).
Description
- The present invention refers to a hygienic device for sanitary fixtures of the type that is suitable for being hung, by means of a suitable hook, to the perimetrical edge of a sanitary fixture, such as for example a WC, as well as to a relative production method of such a hygienic device for sanitary fixtures.
- Known hygienic devices can be divided into so-called "solid tablets", comprising a detergent and/or deodorant means in the solid state, and so-called "liquid tablets", comprising WC detergent and/or deodorant means in the liquid state dispensed through a container.
- In particular, the first type of hygienic devices for WCs generally comprises a perforated dispensing element, called "cage", which is provided with a hook for being engaged to the edge of the WC, and inside which detergent and/or deodorant means in the form of a solid block, also called "soap", are contained.
- The detergent and/or deodorant means in the solid state is currently manufactured, generally, through an extrusion process.
- With every flush of discharge water, the water which directly immerses the cage dispensing element dissolves and washes away a small quantity of the detergent and/or deodorant product from the solid block contained inside the cage.
- One drawback of such cage devices is that they have a high impact on the environment. Indeed, once they have been used, when the detergent and/or deodorant means has run out, the entire dispensing element, comprising the hook and the cage, is thrown away.
- Furthermore, when cage devices are applied inside the WC, they are bulky and have an appearance that can be considered unattractive.
- Also other hygienic devices for WCs have been developed in which the solid detergent and/or deodorant means is suspended to the perimetrical edge through a less bulky cage structure. For example, application
WO 2007/107750 A1 shows a solid detergent means, which has substantially the entire outer surface that is exposed to the discharge water, inside which the plate-shaped end of the hook, for being suspended to the perimetrical edge of the WC, is directly embedded. According to the teachings ofWO 2007/107750 A1 , the plate is inserted in a cut made in the solid detergent block that, through a compressing step, is enclosed around it. - Also application
EP 1891197 A1 describes a process for making a solid detergent block that is suitable for being suspended to an edge of a WC, in which one part of the hook is inserted in the solid block and such a solid block can undergo compression so as to encapsulate the part of the hook. - The main drawback of such devices that are made by inserting a part of the hook in the solid block and by exerting a compression so as to close the solid block around the hook consists of the hold of the coupling between the hook and the solid block during the consumption of the solid block. In particular, the area of contact between the hook and solid block is subject to the phenomenon of delamination, due to repeated flushing of discharge water, and to the progressive consumption of the solid block. This phenomenon could cause the solid block to become detached from the hook and therefore a premature falling of the solid block before it has been substantially used up.
- A further drawback consists of carrying out the production process that requires the insertion and the correct positioning of many separate elements, in particular the solid block and the hook, into a mould in which they are fixedly attached to one another through compression.
- Another example of a hygienic device for a WC comprising a solid detergent and/or deodorant means is given by application
WO 2011/141720 A1 , which teaches to pierce through a solid detergent block on a plate placed either at the front or at the back thereof. - Also in this type of device the size of the structure is smaller with respect to cage devices, but it still has a support structure that is external with respect to the solid block, which is visible in use, especially if of the front type, and that affects the circulation of the discharge water around the solid block, and consequently the uniformity of its consumption negatively.
- The purpose of the present invention is that of making a hygienic device for sanitary fixtures and a relative production method that makes it possible to optimise the circulation of discharge water around the solid detergent block so as to achieve the most homogeneous and even consumption possible with respect to the different types of WCs.
- Another purpose of the present invention is that of making a hygienic device for sanitary fixtures and a relative production method for minimising the risk of premature detachment of the solid block from the hooking means during its use.
- A further purpose is that of making a hygienic device for sanitary fixtures and a relative production method that optimise the result in terms of its appearance.
- Another purpose of the present invention is that of making a hygienic device for sanitary fixtures and a relative production method that are particularly simple and functional, and have low cost.
- These purposes according to the present invention are achieved by making a hygienic device for sanitary fixtures and a relative production method as outlined in the independent claims.
- Further characteristics are provided with in the dependent claims.
- The characteristics and the advantages of a hygienic device for sanitary fixtures and of a relative production method according to the present invention shall become clearer from the following description, given as an example and not for limiting purposes, with reference to the attached schematic drawings, in which:
-
figure 1 is a schematic view showing the production method of a hygienic device for sanitary fixtures; -
figures 2 and 3 are section views of a hygienic device for sanitary fixtures according to a first embodiment according to the lines II-II and III-III shown infigure 5 ; -
figure 4 shows the hooking means of the device offigures 2 and 3 ; -
figure 5 is a perspective view of the device offigure 2 ; -
figures 6-10 are exploded views of further embodiments of a hygienic device for sanitary fixtures according to the invention showing the hooking means and the relative detergent bodies with cylindrical geometry; -
figures 11-15 show further embodiments of the hooking means of the hygienic devices for sanitary fixtures according to the invention; -
figure 16 shows a last embodiment of the hooking means of the hygienic devices for sanitary fixtures according to the invention in an intermediate storing configuration as raw materials; -
figure 17 shows a hygienic device for sanitary fixtures according to the invention showing the hooking means offigure 16 , in a second moulding configuration, and the relative detergent body having a cylindrical geometry. - With reference to the figures, a hygienic device for sanitary fixtures is shown, wholly indicated with 10, comprising a detergent and/or deodorant means in the form of
solid block 20, made of a malleable extruded paste, and means 30 for hooking to a perimetrical edge of a WC. - The hooking means 30 comprise a first
engaging portion 31 for engaging to the WC, in the example shaped as a flexible hook that can have variable shapes and sizes. - The hooking means 30 also comprise a second portion for engaging the
solid block 20, which, when the product is finished, is embedded in thesolid block 20 and that, according to the invention, consists of aperforated element 32. - The
perforated element 32 comprises a throughhole 33, or possibly many through holes 33 (figure 9 ) that are separated by asect 34 and that are surrounded by aperimetrical wall 35. - Each
hole 33 can have, in general, any shape. - According to particular embodiments shown as an example in
figures 8 and17 , thehole 33 can have, on the outline wall, at least one guiding orengaging projection 36, 36' that can be shaped in various ways and protruding towards the inside of the hole for coupling with an extruded body of detergent and/or deodorant material having acylindrical geometry 4 during the moulding of thedevice 10 according to the invention. -
Figure 8 shows, for example, two guidingprojections 36 that face one another in opposite points of thehole 33, which are suitable for engagingcorresponding recesses 6 matching the body havingcylindrical geometry 4. -
Figure 17 shows a plurality of engagement projections 36', that are made in the form of wedges projecting, for some millimetres, towards the inside of thehole 33, equally radially spaced apart along thewall 35 of theperforated element 32, suitable for engraving the surface of the body havingcylindrical geometry 4. - Such engagement projections 36', alternatively to the guiding
projections 36 shown infigure 8 , could be provided in each of the other embodiments that have been shown and described. - The
perimetrical wall 35 of theperforated element 32 can have an external outline surface of any shape and, in the examples, it is shown as an example in the shape of a petal or circular. Preferably, theperforated element 32 is ring-shaped. The flat dimensions of theperforated element 32 are, in general, smaller or, at the most, the same as those of thesolid block 20, so as to be completely embedded in the block itself and thus hidden from sight. - However, in the device according to the invention, the
perforated element 32 could also have greater dimensions with respect to the solid block and project from it even when the product is new, according to an embodiment that has not been shown. Also in this case it will be considered aperforated element 32 embedded in the solid block, since the portion of perforated element embedded in the solid block is responsible for holding the solid block on the hooking means. - According to a preferred embodiment, the
perforated element 32 has an uneven thickness in the direction that is perpendicular to the plane on which it lies, since at least oneelement 37 is provided protruding from at least one side of theperforated element 32, which forms a discontinuity in the surface of theperimetrical wall 35. -
Figures 4 and from 11 to 15 show example embodiments of elements projecting 37 with respect to the thickness of theperforated element 32, for example consisting of spikes or pins that are distributed radially according to various configurations on theperimetrical wall 35. The projectingelements 37 can have a height that is equal to the thickness of theperforated element 32, but that in any case is lower with respect to the thickness of thesolid block 20, so as to not project from the finished product before being used. - The projecting
elements 37 have the main function of helping to place the hooking means into the mould correctly during the production of thedevice 10 according to the invention and of preventing it from rotating during the moulding step. - The
projecting elements 37 have the further function of ensuring a greater hold of the moulded solid block on the perforated element, by increasing the surface of contact and introducing surfaces of contact having different inclinations. - According to what is shown in
figures 16 and 17 , the discontinuity of the upper and/or lower surfaces of thewall 35 can also be made through recesses, that identify a plurality of knurlings 37', substantially extending for the entire upper and/or lower surface of theperforated element 32, except for a flat section on each of the upper and/or lower surfaces placed in a position that is diametrically opposite with respect to theengaging portion 31 for engaging to the WC. - The knurlings 37', which could be indifferently made also in the form of projections, are arranged radially on the
wall 35 and help better convey the paste of the solid block so as to be distributed in a radial manner from the inside outwards during moulding. - The flat section, that in the illustrated example has a thickness equal to the maximum distance between the spikes of the knurlings 37' present on the opposite faces of the
perforated element 32, has the function of strengthening it in the point of greatest tensile stress during the moulding step derived from the pressure exerted by squashing the body havingcylindrical geometry 4. - In the embodiment shown in
figures 16 and 17 acollar 38 is moreover shown, arranged in the portion of transition between the firstengaging portion 31 for engaging to the WC and the second engaging portion to thesolid block 20, which could be present in any of the further embodiments shown and described. Thecollar 38, in addition to being an aid for the manipulation of the hooking means on the production line, helps to place the hooking means correctly inside the mould so as to keep them in position during the compression of the body havingcylindrical geometry 4. - As shown in the sections of
figures 2 and 3 , thesolid block 20 of thedevice 10 according to the invention comprises, at thehole 33 of theperforated element 32, aninternal portion 21, which is inside thehole 33, made from the outset in a unique cohesive piece. This means that at thehole 33, along the entire thickness of thesolid block 20, there are no joining surfaces between different parts of thesolid block 20. - The
solid block 20 comprises, moreover, anintermediate portion 22, that is adjacent to theinternal portion 21 passing in thehole 33 and facing theperimetrical wall 35, in which facing surfaces of the solid block are in contact with theperimetrical wall 35 of theperforated element 32 on opposite sides. - In the case in which the
perforated element 32 is entirely embedded inside thesolid block 20, thesolid block 20 comprises an externalperimetrical portion 23 that is obtained by joining two distinct layers of thesolid block 20 that have come into contact with one another during moulding.Figures 2 and 3 show an embodiment in which it is possible to identify two distinct layers of thesolid block 20 in contact with one another along a joiningsurface 24, shown only as an example at about half the thickness of thesolid block 20. Depending on the moulding parameters, the joiningsurface 24 can be emphasised to a greater or lesser extent and thus possible to identify in the section of the finished solid block rather than on the side wall thereof. - According to one more general embodiment of the invention, the external
perimetrical portion 23 of thesolid block 20 may not have a distribution that is symmetrical with respect to theperforated element 32, but rather have a greater volume on one side of theperforated element 32, infigure 2 on the side opposite thehook 31, depending on the shape of the mould. - In the variant embodiments comprising
many holes 33, thesolid block 20 comprises, at eachhole 33, an internal portion passing in thehole 33 and made in a unique cohesive piece. Theintermediate portion 22, in this case, faces both theperimetrical wall 35, and thesects 34. The considerations described above, concerning the presence of the externalperimetrical portion 23 also apply if theperforated element 32 is entirely embedded in thesolid block 20 according to a preferred embodiment. - In particular, in the embodiment of the hygienic device according to the invention having a
single hole 33, with greater dimensions with respect to the cross-section of theportion 31 in the shape of a flexible hook, it has been seen that in storing conditions of the hooking means 30 stacked one on top of the other, waiting to be used in the moulding, these could get stuck together. This can lead to considerable problems in the automatic step of picking up single hooking means for being assembled with the body havingcylindrical geometry 4 and of positioning them into themould 5 and consequent stop of the production plant. - In order to avoid this problem a
cross 40, or other element that has been moulded transversally with respect to thehole 33 has been provided, which possibly in combination with the embodiment of anenlarged portion 39 at the end of the engagingportion 31 in the shape of a flexible hook, as shown infigure 16 , prevents the hooking means 30 from becoming stuck together. Indeed thecross 40 generates a series of openings with dimensions that are smaller with respect to the hook-shaped portion. Thecross 40 is present in the hooking means only as an intermediate configuration for storing raw material and is then immediately removed, after picking up the hooking means and before the coupling thereof with the body havingcylindrical geometry 4, as shown infigure 17 , which shows the moulding configuration. - Such structural provisions that are suitable for preventing the hooking means 30 from becoming stuck together in storing conditions, according to the invention, is applied to all the embodiments illustrated and described.
- The hygienic device for sanitary fixtures according to the invention is preferably made through the succession of the following steps schematically shown in
figure 1 : - forming through an
extruder 1 of anextrusion 2 of the detergent and/or deodorant material in the form of a malleable paste, - cutting, through
means 3 for cutting theextrusion 2 in pieces of the desired length so as to form a body, havingcylindrical geometry 4, of detergent and/or deodorant material, - positioning in a
mould 5 of at least one body havingcylindrical geometry 4 and of the hookingmeans 30, in particular of theperforated element 32, so as to arrange each body havingcylindrical geometry 4 in engagement inside ahole 33 of theperforated element 32, - compressing the body having
cylindrical geometry 4 so as to form thesolid block 20 around theperforated element 32. - It should be understood, according to the present invention, that the body having
cylindrical geometry 4 of detergent and/or deodorant material could be made also according to a process other than extrusion. - By body having
cylindrical geometry 4 we mean, according to the invention, a body that is identified by a curve, called a directrix curve, intersected by lines that are parallel to one another, called generatrix lines, which are parallel to a predetermined direction X. The body withcylindrical geometry 4 is limited at the ends by two transversal flat sections, or bases, which are parallel to the plane comprising the directrix curve. - The directrix, which is always a closed line, can be for example a circle, an ellipse, a polygon, i.e. it can generally have any shape. Some examples are shown in
figures 7 to 10 . - In the
device 10 according to the invention, preferably, thehole 33 of theperforated element 32 substantially has the same shape and size as the base of the body havingcylindrical geometry 4 so as to be suitable for being engaged with it. - According to the production method object of the present invention, the body having
cylindrical geometry 4 is arranged in theperforated element 32 coaxially with respect to it, that is to say with the axis X, corresponding to the extrusion axis, arranged perpendicularly to the plane containing theperforated element 32. - The arrangement of the group consisting of the body with
cylindrical geometry 4 and theperforated element 32 inside themould 5, is carried out so as to place the element with cylindrical geometry with the axis X parallel to the moulding direction, that is to say the direction in which there is the compression. - According to a further preferred aspect, the body having
cylindrical geometry 4 is kept in position inside thehole 33 in the step of positioning into themould 5 through mechanical interference with therelative hole 33, that is, it is introduced into themould 5 in a pre-assembled condition. - The presence of one or
more guiding projections 36 projecting from the outline wall of thehole 33 towards the inside of the hole also requires the body havingcylindrical geometry 4 to havematching recesses 6, the coupling of which with theprojections 36 contributes keeping the body havingcylindrical geometry 4 in position inside thehole 33 in the step of positioning into the mould during moulding. - The engagement projections 36', which are radially spaced apart along the
wall 35 of theperforated element 32, are suitable for engaging with a slight interference to the body havingcylindrical geometry 4 so as to keep it in position during the positioning of the group into the mould. Indeed, since the body havingcylindrical geometry 4 made of detergent and/or deodorant means, is typically made up of a malleable paste, the engagement projections 36' cause light cuts on the surface thereof when thesolid body 4 is forced inside theperforated element 32 and keep it in the thus predetermined position. - The placing into the mould of the
solid body 4 and of theperforated element 32 in pre-assembled conditions makes it possible to use "cavity"-type moulding method, in which the group made up of the body havingcylindrical geometry 4 and of theperforated element 32 in entirely placed inside a mould that compresses it and modifies its shape redistributing the mass, without creating scraps, that is to say waste material coming out from the mould, which are typical, on the other hand, in "press" moulding. - The positioning step of the hooking
means 30 and of the at least one body havingcylindrical geometry 4 into themould 5 is assisted by the presence of the discontinuities of the surfaces of thewall 35, made up of the protruding or recessedelements 37, 37' with respect to the at least one side of theperforated element 32 and that are suitable for giving the perforated element a variable thickness and for engaging to corresponding recesses or projections matching the mould (not shown). - An automatic step of picking up the single hooking
means 30 for their pre-assembly with the body havingcylindrical geometry 4, in which the hookingmeans 30 are kept in an orderly configuration before the picking up step thanks to the presence of aportion 39 that is widened at the end of the engagingportion 31 of the hookingmeans 30. - A subsequent step of removing the
cross 40 precedes the step of placing, into the mould, the at least one body, havingcylindrical geometry 4 arranged in engagement inside the throughhole 33 of theperforated element 32 of the hookingmeans 30. - By
extrusion 2 we mean both a semi-finished product made in a single piece, and a semi-finished product obtained through co-extrusion of two or more detergent and/or deodorant materials, for example coaxial with respect to the axis X, as schematically shown infigure 17 . - According to one preferred aspect of the method according to the present invention, the step of compressing the body having
cylindrical geometry 4 does not substantially modify the density of the malleable paste forming the detergent and/or deodorant means. - The production method of a hygienic device for sanitary fixtures according to the invention has the advantage of allowing a rapid and precise placing of the solid block and of the hooking means in a mould, which can be actuated also with automatic means.
- A further advantage of the method according to the invention comes from the redistribution of the malleable paste, which forms the solid block, around the hooking means during the moulding operation.
- The hygienic device for sanitary fixtures and the relative production method, object of the present invention, have the advantage of keeping a substantial portion of the detergent and/or deodorant material in the form of a unique cohesive piece supported by gravity in use by the lower outline of the hole of the perforated element, substantially preventing it from accidentally falling off during use.
- The hygienic device for sanitary fixtures and the relative production method thus conceived can undergo numerous modifications and variants, all covered by the invention, moreover, all the details can be replaced by technically equivalent elements. In practice, the materials used, as well as the dimensions, can be any according to the technical requirements.
Claims (16)
- Method for producing a hygienic device for sanitary fixtures comprising a detergent and/or deodorant means in the form of a solid block (20) and hooking means (30) to a perimetrical edge of a WC, wherein said hooking means (30) comprise an engaging portion to the WC (31) and an engaging portion (32) to said solid block (20), said engaging portion (32) to said solid block (20) being embedded in the solid block (20),
comprising the steps of:- placing, into a mould (5), at least one body having cylindrical geometry (4) of detergent and/or deodorant material and said hooking means (31) comprising an engaging portion to said solid block made of a perforated element (32), wherein said body having cylindrical geometry (4) is arranged in engagement inside at least one through hole (33) of the perforated element (32), wherein said body having cylindrical geometry (4) is identified by a curve, of any shape, in the points of which lines pass parallel to one another,- compressing the body having cylindrical geometry (4) so as to form a solid block (20) around said perforated element (32). - Method according to claim 1, characterised in that said body having cylindrical geometry (4) is made through the steps of:- forming an extrusion (2) of the detergent and/or deodorant means,- cutting pieces of extrusion so as to form said body having cylindrical geometry (4).
- Method according to any one of the preceding claims, characterised in that said at least one hole (33) of the perforated element (32) has substantially the same shape and size as the base of the body having cylindrical geometry (4) suitable for being placed into it.
- Method according to any one of the preceding claims, characterised in that said at least one body having cylindrical geometry (4) is kept in position inside the at least one hole (33) during the step of placing into the mould (5) by mechanical interference with the hole (33).
- Method according to any one of the preceding claims, characterised in that said hooking means (30) are placed into the mould (5) by means of at least one protruding element or recess (37, 37') on at least one side of the perforated element (32) or on the thickness variation of said perforated element (32) through coupling with complementary recesses or projections of the mould (5).
- Method according to any one of the preceding claims, characterised in that said body having cylindrical geometry is placed inside said mould (5) with its axis (X) arranged parallel with respect to the moulding direction according to which the compression occurs.
- Method according to any one of the preceding claims, characterised by applying a "cavity"-type moulding method, wherein the group consisting of said body having cylindrical geometry (4) and said perforated element (32), is entirely arranged inside said mould (5).
- Method according to any one of the preceding claims, characterised in that said step of placing, into a mould, at least one body having cylindrical geometry (4) arranged in engagement inside a through hole (33) of the perforated element (32) of the hooking means (30) is preceded by a first step of picking up hooking means (30) equipped with an element moulded transversally with respect to the hole (33), such as a cross (40), using automatic means, and by a second step of removing said element moulded transversally with respect to the hole (33).
- Hygienic device for sanitary fixtures made according to any one of the preceding claims comprising a detergent and/or deodorant means in the form of a solid block (20) and hooking means (30) to a perimetrical edge of a WC, wherein said hooking means (30) comprise a first engaging portion to the WC (31) and a second engaging portion (32) to said solid block (20) embedded in said solid block (20), wherein said second engaging portion to the solid block (20) is made of a perforated element (32), comprising at least one through hole (33) surrounded by a perimetrical wall (35), said solid block (20) comprising, at said at least one hole (33), at least one internal portion (21) made in a unique cohesive piece, that is, devoid of joining surfaces among different parts of the solid block throughout the thickness of the solid block.
- Device according to claim 9, characterised in that it comprises a plurality of through holes (33), having any shape and size, separated by at least one sect (34).
- Device according to any one of claims 9 and 10, characterised in that it comprises an external perimetrical portion (23) comprising two distinct layers of the solid block in contact to each other along a joining surface (24).
- Device according to any one of the preceding claims 9 to 11, characterised in that said perforated element (32) has a variable thickness.
- Device according to claim 12, characterised in that a plurality of protruding or recessed elements (37, 37') is radially distributed on the perimetrical wall at least on one side of the perforated element (32).
- Device according to claims 12 or 13, characterised in that said perforated element (32) has a plurality of knurlings (37') arranged radially substantially on the inner upper and/or lower surface.
- Device according to any one of the preceding claims 9 to 14, characterised in that said at least one hole (33) has, on the outline wall, at least one guiding or engaging projection (36, 36') protruding towards the inside of the hole (33).
- Device according to claim 15, characterised in that it comprises a plurality of engagement projections (36') shaped like wedges projecting towards the inside of said hole (33), said engagement projections (36') being radially spaced apart.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI201330860T SI2703571T1 (en) | 2012-07-13 | 2013-07-11 | Method for producing a hygienic device for sanitary fixtures |
PL13176208T PL2703571T3 (en) | 2012-07-13 | 2013-07-11 | Method for producing a hygienic device for sanitary fixtures |
EP16189465.4A EP3147417A1 (en) | 2012-07-13 | 2013-07-11 | Hygienic device for sanitary fixtures |
HRP20171794TT HRP20171794T1 (en) | 2012-07-13 | 2017-11-20 | Method for producing a hygienic device for sanitary fixtures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001227A ITMI20121227A1 (en) | 2012-07-13 | 2012-07-13 | HYGIENIC DEVICE FOR SANITARY APPLIANCES AND RELATED PRODUCTION METHOD |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16189465.4A Division-Into EP3147417A1 (en) | 2012-07-13 | 2013-07-11 | Hygienic device for sanitary fixtures |
EP16189465.4A Division EP3147417A1 (en) | 2012-07-13 | 2013-07-11 | Hygienic device for sanitary fixtures |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2703571A1 true EP2703571A1 (en) | 2014-03-05 |
EP2703571B1 EP2703571B1 (en) | 2017-09-06 |
Family
ID=46758878
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13176208.0A Not-in-force EP2703571B1 (en) | 2012-07-13 | 2013-07-11 | Method for producing a hygienic device for sanitary fixtures |
EP16189465.4A Withdrawn EP3147417A1 (en) | 2012-07-13 | 2013-07-11 | Hygienic device for sanitary fixtures |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16189465.4A Withdrawn EP3147417A1 (en) | 2012-07-13 | 2013-07-11 | Hygienic device for sanitary fixtures |
Country Status (6)
Country | Link |
---|---|
EP (2) | EP2703571B1 (en) |
ES (1) | ES2650065T3 (en) |
HR (1) | HRP20171794T1 (en) |
IT (1) | ITMI20121227A1 (en) |
PL (1) | PL2703571T3 (en) |
SI (1) | SI2703571T1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006058894A1 (en) * | 2004-12-04 | 2006-06-08 | Symrise Gmbh & Co. Kg | Invisible toilet bowl deodorizer block |
WO2007107750A1 (en) | 2006-03-22 | 2007-09-27 | Reckitt Benckiser Inc | Improvements in dispensing devices |
WO2007107755A1 (en) * | 2006-03-22 | 2007-09-27 | Reckitt Benckiser Inc. | Process for manufacturing improved dispensing devices |
WO2009037431A1 (en) * | 2007-09-21 | 2009-03-26 | Reckitt Benckiser Inc. | Cageless dispensing device |
WO2011141720A1 (en) | 2010-05-14 | 2011-11-17 | Jeyes Group Limited | Dispensing device and method of manufacture |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1896093U (en) * | 1963-09-19 | 1964-07-02 | Konrad Mielke | PRESSLING FOR ADDING THE CLEANING AND DISINFECTANTS TO THE FLUSH WATER IN FLUSHING LOTS, etc. |
-
2012
- 2012-07-13 IT IT001227A patent/ITMI20121227A1/en unknown
-
2013
- 2013-07-11 SI SI201330860T patent/SI2703571T1/en unknown
- 2013-07-11 EP EP13176208.0A patent/EP2703571B1/en not_active Not-in-force
- 2013-07-11 EP EP16189465.4A patent/EP3147417A1/en not_active Withdrawn
- 2013-07-11 ES ES13176208.0T patent/ES2650065T3/en active Active
- 2013-07-11 PL PL13176208T patent/PL2703571T3/en unknown
-
2017
- 2017-11-20 HR HRP20171794TT patent/HRP20171794T1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006058894A1 (en) * | 2004-12-04 | 2006-06-08 | Symrise Gmbh & Co. Kg | Invisible toilet bowl deodorizer block |
WO2007107750A1 (en) | 2006-03-22 | 2007-09-27 | Reckitt Benckiser Inc | Improvements in dispensing devices |
WO2007107755A1 (en) * | 2006-03-22 | 2007-09-27 | Reckitt Benckiser Inc. | Process for manufacturing improved dispensing devices |
EP1891197A1 (en) | 2006-03-22 | 2008-02-27 | Reckitt Benckiser Inc. | Process for manufacturing improved dispensing devices |
WO2009037431A1 (en) * | 2007-09-21 | 2009-03-26 | Reckitt Benckiser Inc. | Cageless dispensing device |
WO2011141720A1 (en) | 2010-05-14 | 2011-11-17 | Jeyes Group Limited | Dispensing device and method of manufacture |
Also Published As
Publication number | Publication date |
---|---|
PL2703571T3 (en) | 2018-03-30 |
SI2703571T1 (en) | 2018-04-30 |
EP2703571B1 (en) | 2017-09-06 |
HRP20171794T1 (en) | 2017-12-29 |
ITMI20121227A1 (en) | 2014-01-14 |
EP3147417A1 (en) | 2017-03-29 |
ES2650065T3 (en) | 2018-01-16 |
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