WO2023233282A1 - Assembleable, ecological and anti-scale toilet cassette - Google Patents

Assembleable, ecological and anti-scale toilet cassette Download PDF

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Publication number
WO2023233282A1
WO2023233282A1 PCT/IB2023/055516 IB2023055516W WO2023233282A1 WO 2023233282 A1 WO2023233282 A1 WO 2023233282A1 IB 2023055516 W IB2023055516 W IB 2023055516W WO 2023233282 A1 WO2023233282 A1 WO 2023233282A1
Authority
WO
WIPO (PCT)
Prior art keywords
flushing
water
assemblable
actuation
push
Prior art date
Application number
PCT/IB2023/055516
Other languages
French (fr)
Inventor
Giulia CARUSO
Original Assignee
Fonderie Pontine Brevetti Catis S.R.L.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fonderie Pontine Brevetti Catis S.R.L. filed Critical Fonderie Pontine Brevetti Catis S.R.L.
Publication of WO2023233282A1 publication Critical patent/WO2023233282A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/01—Shape or selection of material for flushing cisterns
    • E03D1/012—Details of shape of cisterns, e.g. for connecting to wall, for supporting or connecting flushing-device actuators
    • E03D1/0125—Details of shape of cisterns, e.g. for connecting to wall, for supporting or connecting flushing-device actuators of built-in cisterns
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/02—High-level flushing systems
    • E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
    • E03D1/142—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves
    • E03D1/145—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves having multiple flush outlets
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
    • E03D5/028—Pusher plates and actuating mechanisms for built-in cisterns
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
    • E03D5/09—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the hand
    • E03D5/092—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the hand the flushing element, e.g. siphon bell, being actuated through a lever
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
    • E03D5/105—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl touchless, e.g. using sensors
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/02—High-level flushing systems
    • E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
    • E03D2001/147—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves having provisions for active interruption of flushing

Definitions

  • the present invention relates the field of the production of flushing systems, specifically toilet cassettes. Even more specifically, the present invention relates to a toilet cassette that is easy and quick to assemble, and which, in addition to not requiring continuous maintenance, allows the replacement of its components without requiring particular competence and/or skill and/or external instrumentation.
  • the standard flush system is a glazed ceramic bowl which holds the water connected to the water supply system.
  • the first flush toilet was proposed ahead of its time by SIR JOHN HARINGTON in 1596, but the lack of an internal sanitary system in most places of residence became an obstacle to its widespread use.
  • ALEXANDER CUMMINGS added an S-shaped drain to the toilet, i.e. a flap between the bowl and the flush. Since then, the design and construction materials of the toilets have undergone considerable changes, however, as usual, the flush system and the toilet are installed in different places.
  • patent US 8701220 which describes a toilet with a built-in cassette.
  • the invention comprises a fluid channel between the tank and the toilet bowl; a jet tube inside the tank, which is provided with a nozzle directed towards the inlet of the fluid passage; a filling valve which supplies water to the spray lance; and a flow diverter in the tank, arranged to divert the water flow.
  • This causes the contents of the tank to be siphoned into the toilet bowl and the bowl to be flushed.
  • this invention does not use air pressure through the electrical supply, it does utilize a waterjet system which can become pressurized due to inadequate water pressure in the main system at the installation site and is also very prone to clogging due to impurities present in the water.
  • double flush toilets have been developed.
  • the user can choose between two quantities of water.
  • a flush with a small amount of water is used to remove liquid product, while a flush with a large amount of water, is typically used twice the amount of the small one.
  • Patent application EA038271B 1 is exemplary in this sense.
  • the patent claims a sanitary fixture coupled to a water mains and including a rinsing unit.
  • Said rinsing unit comprises, in turn, a tank having a first chamber, with a first volume and an inlet, and a second chamber having an outlet and a second volume greater than the volume of the first chamber.
  • the inlet of the rinsing unit is coupled to a high pressure water source receiving a first amount of water at an inlet pressure established by the source.
  • a pressure exchange mechanism arranged between the first chamber and the second chamber, the amount of water contained in the second chamber is always greater than that contained in the first chamber.
  • the object of the present patent application is to overcome the aforementioned drawbacks by proposing an innovative flush cassette for toilets which not only reduces water waste, but also the times and difficulties associated with assembly and maintenance.
  • an innovative flush cassette for toilets which not only reduces water waste, but also the times and difficulties associated with assembly and maintenance.
  • the cassette is composed for the most part of interlocking elements, allowing an easy and rapid assembly of the same, as well as their possible replacement.
  • the present invention by virtue of the material used and of an innovative design with which some components are provided, the danger of deposits is eliminated.
  • an innovative assemblable, anti-scale and ecological flush cassette for toilets is provided which simplifies the assembly and maintenance steps through the use of components that can be assembled with interlocking systems, eliminating the normal threaded connections.
  • the components of the invention are produced entirely in polypropylene, the latter obtained from recycled plastic materials, reducing, through the physical properties, the formation of limescale deposits and increasing the adherence of the components.
  • these components can be even more advantageously plasma treated: this treatment involves significant modifications in their surface properties, particularly in the surface energy, wettability, adhesion, electrical surface resistance, dielectric loss tangent, dielectric permittivity, catalytic activity, tribological parameters, gas absorption and permeability characteristics, thus allowing the invention to be compatible with distribution plants, ceramic materials and composites; wherein, said plasma treatment allows the use of silicone elements in junctions between different components, thus increasing adhesion and limiting water leakage.
  • the innovative toilet flush cassette can be divided into three macro-parts: the upper component, the lower component and the components relating to the flush system.
  • the lower component contains the water outflow systems, depending on the water flow rate required by the customer, while the upper part contains the water inlet connections and the system that regulates the quantity possessed by the entire flush system.
  • the flush push-button panel is provided with at least two buttons located on the front side visible to the user and allow the flush system to be operated according to the amount of water required to clean the toilet.
  • buttons advantageously allow the cassette to be partially or totally emptied by pouring water into the bowl, which, due to the force of gravity and the difference in height, laps against the internal walls of the bowl with a given kinetic energy, allowing for a specific cleaning.
  • the system connected to the water pipe, is recharged by means of a float and the relative levers.
  • the invention may comprise a removable protection, which acts as a protection for the internal components.
  • the removable protection can be easily engaged and removed without using specific tools, but simply by activating/deactivating some joints, advantageously facilitating the operation of the installers.
  • a compartment obtained in the central part of the upper component, acts as a support for the previously described flush push-button panel and allows the entire cassette to be installed in different masonry conditions.
  • the primary and secondary pins are advantageously engaged inside the compartment and are shaped on the free end so as to avoid the use of external tools to adjust the distance between the panel and the installation surface.
  • a protective component which allows the operator, during the assembly steps, to access the inside of the flush system.
  • the component in question is connected to the compartment of the upper component by means of bayonet hooks.
  • a plurality of actuation commands, each for each button, is mobilized by the secondary pins when the flush buttons are pressed. They allow the flush actuation system to rotate, during the flush actuation step, back to its initial position through the use of torsion springs.
  • the lower component i.e. the part that acts both as a fluid container and as an actual actuation of the water flow, has actuation levers, directly responsible for actuating the outflow of water from the flush system to the toilet.
  • the actuation levers are connected, by means of a lever system, to the actuation commands described above.
  • the upward movement of the operating lever is a direct application of the load, by the user, on at least a flush push-button of the invention.
  • the latter are entrusted with the dual function of returning the push-buttons to their starting position and of providing the necessary force to the operating levers to return to the closed position.
  • the operating levers can differ in length in order to identify two different volumes of water inside the cassette with a view to saving water.
  • the levers corresponding to the major flush buttons in addition to having a greater length, have two circular reinforcements in the central part which allow, by means of supports installed on the internal walls of the lower component, to guarantee the axiality between the operating lever and the fluid outlet hole.
  • the lower part of the operating levers is made up of spheres that are larger in size than the water outlet holes.
  • the particular shape of the operating levers combined with the operation foreseen in the design step, allows the spheres of the levers to bounce during the flushing step. This particular motion prevents the operating levers from accumulating sediments of a mining nature such as limestone, which translates into greater product reliability and a longer useful life.
  • the water flushing is ensured by a water conveyor positioned in the lower part of the lower component.
  • the invention is characterized by the presence of an internal and/or external coating at the upper and lower components.
  • This coating is made of sound-absorbing material so as to reduce the noise produced by the flushing and water refilling steps.
  • the invention can preferably provide a proximity sensor, engaged on the surface of the flush button panel, adapted to read the presence of a user near the toilet, and to mechanically activate internal arms, which exert pressure on at least some buttons, activating the flushing process, the user walks away.
  • Both the proximity sensor and internal arms are powered by a replaceable internal battery and/or electrical system.
  • the invention can be implemented with a LED strip, which can be engaged along the perimeter of the flush button panel and electrically connected to the proximity sensor.
  • the LED strip has the function of illuminating the surrounding area when the proximity sensor detects the presence of a user near the toilet and remains off when the proximity sensor detects no presence.
  • the LED strip can be connected, its intensity can be adjusted, and it can be activated/deactivated via an external device using a network connection.
  • FIGURE 1 shows a side perspective view of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application
  • FIGURE 2 illustrates a side perspective view of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application, when a removable protection 300 is engaged;
  • FIGURE 3 shows a side perspective view of part of the internal components of the upper component 10 of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application
  • - FIGURE 4 shows a front perspective view of part of the internal components of the upper component 10 of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application;
  • FIGURE 5 shows a front perspective view of part of the internal components of the upper component 10 of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application;
  • FIGURE 6 shows a vertical section of the lower component 11 of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application.
  • FIGS. 1 to 6 the components of one of an assemblable, anti-scale and ecological toilet cassette 100 according to the present invention are shown, which, in addition to simplifying the assembly and maintenance steps through components that can be assembled with interlocking systems, is entirely assembled from polypropylene components, the latter obtained from recycled plastic materials, reducing, through the physical properties, the formation of limescale deposits.
  • FIG. 1 shows a side view of the external components constituting an assemblable, anti-scale and ecological toilet cassette 100 according to the present invention
  • FIG. 2 shows, through a side elevation, the external components of the assemblable, anti-scale and ecological toilet cassette 100, when a removable protection 300 is engaged on the flush button panel 13;
  • FIG. 3 shows in side perspective view the components present in the upper component 10, inside the compartment 12 and behind the flush push-button panel 13;
  • FIG. 4 with a front view, shows other internal components engaged inside the compartment 12, precisely those relating to the level of the protective component 17;
  • FIG. 5 through a further front view illustrates the components engaged inside the hollow part of the upper component 10;
  • FIG. 6, through a vertical section shows the components engaged inside the lower component 11.
  • the invention comprises two load-bearing portions, the upper component 10 and the lower component 11, which assembled together through alternating slots 14, create quick coupling systems. Furthermore, since the alternating slots 14 are located on the opposite and symmetrical sides of the upper component 10 and the lower component 11, they guarantee stability to the system, avoiding accidental disjunctions.
  • the assemblable ecological and anti-scale toilet cassette 100 is installed within wall structures by means of dedicated hooks 14’, the latter obtained on the external surface of the upper component 10 and of the lower component 11, thereby reducing the visual impact within the installation site and leaving exposed only the flushing push-button panel 13. Furthermore, the invention does not provide for any accessory coating, such as the usual polystyrene liners, allowing installation by using building adhesives, reducing the overall thickness of the wall structures prepared for installation.
  • the upper component 10 produced in the form of a hollow parallelepiped, contains water inflow connections 200 on one side, on the other one it protects the system that controls the water amount enclosed within the entire flush system.
  • the lower component 11 likewise contains the flush actuation system and provides, in its lower part, a correct connection with the toilet.
  • the lower component 11 is also produced in the shape of a hollow parallelepiped so as to contain water useful for flushing: it is produced in a different format based on the water flow rate chosen/requested by the user.
  • a compartment 12 is obtained, which allows the engagement and/or maintenance of the components relating to the flushing system.
  • a flush push-button panel 13 is engaged in said compartment 12 by means of interlocking systems, so as to be easily usable by the user after installation.
  • the flush push-button panel 13 is composed of a small push-button panel 13’ and a large push-button panel 13”, so as to allow selecting, by pressing, between at least two flush modes: the choice of the small push-button panel 13’ corresponds to a smaller use of water than selecting the larger push-button panel 13”.
  • the flushing function is ensured by the gap between the flushing buttons 13 ’- 13” and the secondary pins 16, the latter one for each button 13’-13” and in line with them.
  • This gap is regulated, during installation, by means of primary pins 15, which in turn can be adjusted according to the thickness given by the plaster and any covering ceramics.
  • Both the primary pins 15 and the secondary pins 16 are engaged inside the compartment 12 and are shaped on the free end so as to avoid using external tools to adjust the distance between the push-button panel 13 and the installation surface.
  • a protective component 17 which not only allows the operator, during the assembly steps, to access the inside of the flush system, but also to provide further protection to the internal components of the invention.
  • Such protective component 17 is engaged by means of bayonet hooks 17’, facilitating assembly and maintenance operations.
  • Two actuation controls 18 are engaged on the surface of said protective component 17, one for each flush push-button 13’-13”, which are mobilized by the secondary pins 16 when a pressure occurs on said flush buttons 13’-13”.
  • the actuation commands 18 allow, following the direct application of the load, by the user, on the flush buttons 13 ’-13”, the upward movement of the actuation levers 22-23.
  • the actuation commands 18, by means of integrated torsion springs and the force of gravity ensure a downward movement of the actuation levers 22-23: in this way, the torsion springs on one side reset the flush buttons 13’- 13” to their starting position and, on the other hand, provide the necessary force to the operating levers 22-23 to return to the closed position.
  • a water conveyor 20 stands out, engaged in the lower portion, which allows, through fluid outlet holes, obtained in its upper part and each one for each flush button 13 ’-13”, the correct operation of the water flushing: the fluid outlet hole corresponding to the small flush button 13’, is provided at the top with a cylinder 24, so that, during the flushing step, a smaller quantity of water comes out.
  • the operating levers 22-23 are engaged at said fluid outlet holes, each for each flush button 13 ’-13”. They are connected by lever mechanisms to the actuation controls 18 and both have spheres 22’-23’ in the lower part, larger in size than the fluid outlet holes of the previously described water conveyor 20, so as not to allow the leakage of water when not mobilized.
  • the actuation levers 22-23 can be distinguished in a small actuation lever 22, corresponding to the lever mechanisms of the small flush button 13’ and a large actuation lever 23, corresponding to the lever mechanisms of the large flush button 13” : the large actuation lever 23 has a greater length than the small actuation lever 22 and in the central part it is reinforced by two circular reinforcements designed to guarantee, by means of supports installed on the internal walls of the lower component 11, the axiality between the large actuation lever 23 and the corresponding fluid outlet hole. While the spheres 22’ of the small actuation lever 22 is incorporated inside a cage 22”, the latter engaged in the top part of the cylinder 24, ensuring the same coaxiality between the small actuation lever 22 and the same cylinder 24. Furthermore, the spheres 22’ -23’, exploiting the shape and movement of the actuation levers 22-23, rebound when the actuation levers 22-23 are mobilized in the flushing step, thus avoiding the build-up of sediments.
  • the invention is completed by a float 19, connected to the aforementioned connections for the water inlet 200, which is engaged inside the upper component 10 via a float support 21 so as to be outside the free surface of the water, thus reducing the build-up of sediments, such as limescale, which can shorten the life of the system.
  • the invention provides two supports for the float 21, near the right and left ends of the compartment 12, so as to adapt to different types of connections for the water inlet 200.

Abstract

Assemblable, anti-scale ecological toilet cassette (100) adapted for facilitating installation and maintenance work by using components assemblable by means of interlocking systems and eliminating threaded connections; the assemblable ecological and anti-scale toilet cassette (100) being entirely formed in polypropylene components, the latter obtained from recycled plastic materials, so as to reduce by their physical properties the formation of limescale, and increase the adhesion of the components; said polypropylene components are plasma treated in such a way as to allow the use of silicone elements between the joints of the various components, increasing their adhesion and limiting the leakage of water; the upper component (10) and the lower component (11) are provided with alternating slots (14) to create quick coupling systems; said alternating slots (14) being placed on the opposite and symmetrical sides of the upper component (10) and of the lower component (11), guaranteeing stability to the system, avoiding accidental disjunctions.

Description

“Assembleable, ecological and anti-scale toilet cassette”
Description
Field of the invention
The present invention relates the field of the production of flushing systems, specifically toilet cassettes. Even more specifically, the present invention relates to a toilet cassette that is easy and quick to assemble, and which, in addition to not requiring continuous maintenance, allows the replacement of its components without requiring particular competence and/or skill and/or external instrumentation.
Prior art
Various forms of ceramic flush toilets are widely used today: in Western countries, seat toilets are commonly used, while floor-mounted toilets are widely used in East Asia. In most urban areas, toilets are connected to the sewer system and in less built-up areas to septic tanks.
The standard flush system is a glazed ceramic bowl which holds the water connected to the water supply system.
The first flush toilet was proposed ahead of its time by SIR JOHN HARINGTON in 1596, but the lack of an internal sanitary system in most places of residence became an obstacle to its widespread use. Two hundred years later, ALEXANDER CUMMINGS added an S-shaped drain to the toilet, i.e. a flap between the bowl and the flush. Since then, the design and construction materials of the toilets have undergone considerable changes, however, as usual, the flush system and the toilet are installed in different places. In addition, they are placed at a distance from each other to take advantage of the force of gravity to create a waterfall effect and are placed close to each other in the form of a single block for aesthetic reasons, or alternatively, the flush system is hidden inside the wall to increase the aesthetic quality of the environment where the devices are installed.
There are also examples where the cassette is integrated into the toilet bowl body, thus providing the aesthetic appearance of a concealed cassette without the need for installation and maintenance in an empty space in the wall; however, this requires an electrical connection for the air pressure supply, based on the technology of patent document US 8615822. The patent claims a compressed air flush system, in which the air supply system contains a channel for communication with atmospheric air, providing free passage of air between the tank and the external environment when the system air supply is switched off. In order to force the water from the tank to the cassette, there is a fitting at the water inlet for filling the cassette. Although this invention reduces the need for complex installation of the flush system in the wall cavity, it requires an electrical connection and, in addition, the specified source must be located close to the electrical network.
Another example is provided by patent US 8701220 which describes a toilet with a built-in cassette. The invention comprises a fluid channel between the tank and the toilet bowl; a jet tube inside the tank, which is provided with a nozzle directed towards the inlet of the fluid passage; a filling valve which supplies water to the spray lance; and a flow diverter in the tank, arranged to divert the water flow. This causes the contents of the tank to be siphoned into the toilet bowl and the bowl to be flushed. While this invention does not use air pressure through the electrical supply, it does utilize a waterjet system which can become pressurized due to inadequate water pressure in the main system at the installation site and is also very prone to clogging due to impurities present in the water.
Furthermore, the economical use of water is becoming increasingly important. Due to the need to use water economically, double flush toilets have been developed. In a double flush toilet, the user can choose between two quantities of water. A flush with a small amount of water is used to remove liquid product, while a flush with a large amount of water, is typically used twice the amount of the small one.
Patent application EA038271B 1 is exemplary in this sense. The patent claims a sanitary fixture coupled to a water mains and including a rinsing unit. Said rinsing unit comprises, in turn, a tank having a first chamber, with a first volume and an inlet, and a second chamber having an outlet and a second volume greater than the volume of the first chamber. The inlet of the rinsing unit is coupled to a high pressure water source receiving a first amount of water at an inlet pressure established by the source. By virtue of a pressure exchange mechanism arranged between the first chamber and the second chamber, the amount of water contained in the second chamber is always greater than that contained in the first chamber.
Among the common drawbacks that characterize all the devices listed above, there is the continuous maintenance due to the formation of limescale encrustations between the components and the difficult assembly of the various components of the flush tank.
The object of the present patent application is to overcome the aforementioned drawbacks by proposing an innovative flush cassette for toilets which not only reduces water waste, but also the times and difficulties associated with assembly and maintenance. By virtue of the elimination of the couplings based on threaded connections, which require tools for the assembly of the flush system, as a results the cassette is composed for the most part of interlocking elements, allowing an easy and rapid assembly of the same, as well as their possible replacement. In the present invention, by virtue of the material used and of an innovative design with which some components are provided, the danger of deposits is eliminated.
Description of the invention
According to the present invention, an innovative assemblable, anti-scale and ecological flush cassette for toilets is provided which simplifies the assembly and maintenance steps through the use of components that can be assembled with interlocking systems, eliminating the normal threaded connections.
Furthermore, the components of the invention are produced entirely in polypropylene, the latter obtained from recycled plastic materials, reducing, through the physical properties, the formation of limescale deposits and increasing the adherence of the components. These components can be even more advantageously plasma treated: this treatment involves significant modifications in their surface properties, particularly in the surface energy, wettability, adhesion, electrical surface resistance, dielectric loss tangent, dielectric permittivity, catalytic activity, tribological parameters, gas absorption and permeability characteristics, thus allowing the invention to be compatible with distribution plants, ceramic materials and composites; wherein, said plasma treatment allows the use of silicone elements in junctions between different components, thus increasing adhesion and limiting water leakage.
The high elasticity of the materials used for all the components makes the invention advantageously anti-seismic, guaranteeing its integrity following earthquakes.
The innovative toilet flush cassette can be divided into three macro-parts: the upper component, the lower component and the components relating to the flush system.
The lower component contains the water outflow systems, depending on the water flow rate required by the customer, while the upper part contains the water inlet connections and the system that regulates the quantity possessed by the entire flush system.
To ensure quick, easy assembly/disassembly, which does not require the use of external equipment and which is at the same time reliable, alternating slots have been made on the lower and upper component to create quick coupling systems.
The presence of the slots on the opposite and symmetrical sides of the lower and upper component of the invention guarantees stability to the system, avoiding accidental disjunctions.
It is advantageously possible to install the invention inside any masonry structure, reducing the aesthetic impact inside the bathroom and leaving visible only a circumscribed area containing the flush push-button panel.
The flush push-button panel is provided with at least two buttons located on the front side visible to the user and allow the flush system to be operated according to the amount of water required to clean the toilet.
The buttons advantageously allow the cassette to be partially or totally emptied by pouring water into the bowl, which, due to the force of gravity and the difference in height, laps against the internal walls of the bowl with a given kinetic energy, allowing for a specific cleaning.
Once the system has been flushed, the system, connected to the water pipe, is recharged by means of a float and the relative levers.
Preferably, the invention may comprise a removable protection, which acts as a protection for the internal components.
The removable protection can be easily engaged and removed without using specific tools, but simply by activating/deactivating some joints, advantageously facilitating the operation of the installers.
A compartment, obtained in the central part of the upper component, acts as a support for the previously described flush push-button panel and allows the entire cassette to be installed in different masonry conditions.
In fact, the variation in thickness due to the plaster layer and the presence or absence of ceramic coating material can in this way be compensated for by means of primary pins.
In this way, a gap is generated between the flushing push-buttons and the secondary pins, one for each button: the primary and secondary pins are advantageously engaged inside the compartment and are shaped on the free end so as to avoid the use of external tools to adjust the distance between the panel and the installation surface.
Behind the flush push-button panel there is a protective component, which allows the operator, during the assembly steps, to access the inside of the flush system. To facilitate assembly and maintenance operations, the component in question is connected to the compartment of the upper component by means of bayonet hooks.
A plurality of actuation commands, each for each button, is mobilized by the secondary pins when the flush buttons are pressed. They allow the flush actuation system to rotate, during the flush actuation step, back to its initial position through the use of torsion springs.
The lower component, i.e. the part that acts both as a fluid container and as an actual actuation of the water flow, has actuation levers, directly responsible for actuating the outflow of water from the flush system to the toilet.
The actuation levers are connected, by means of a lever system, to the actuation commands described above.
Given the particular shape provided to the operating levers in the upper part, it is possible to provide the latter with vertical movement for the opening and occlusion of the water outflow holes. The upward movement of the operating lever is a direct application of the load, by the user, on at least a flush push-button of the invention.
While the downward movement of the operating levers is ensured by the combined operation of the force of gravity and the torsion springs integrated in the operating commands.
The latter are entrusted with the dual function of returning the push-buttons to their starting position and of providing the necessary force to the operating levers to return to the closed position.
The operating levers can differ in length in order to identify two different volumes of water inside the cassette with a view to saving water.
The levers corresponding to the major flush buttons, in addition to having a greater length, have two circular reinforcements in the central part which allow, by means of supports installed on the internal walls of the lower component, to guarantee the axiality between the operating lever and the fluid outlet hole.
To ensure the same coaxiality between the shorter levers, corresponding to the smaller flush buttons, and a cylinder, which limits the amount of water, a cage has been provided.
The lower part of the operating levers is made up of spheres that are larger in size than the water outlet holes. The particular shape of the operating levers, combined with the operation foreseen in the design step, allows the spheres of the levers to bounce during the flushing step. This particular motion prevents the operating levers from accumulating sediments of a mining nature such as limestone, which translates into greater product reliability and a longer useful life. The water flushing is ensured by a water conveyor positioned in the lower part of the lower component.
In one of the preferred embodiments, the invention is characterized by the presence of an internal and/or external coating at the upper and lower components. This coating is made of sound-absorbing material so as to reduce the noise produced by the flushing and water refilling steps.
The invention can preferably provide a proximity sensor, engaged on the surface of the flush button panel, adapted to read the presence of a user near the toilet, and to mechanically activate internal arms, which exert pressure on at least some buttons, activating the flushing process, the user walks away.
Both the proximity sensor and internal arms are powered by a replaceable internal battery and/or electrical system.
Finally, the invention can be implemented with a LED strip, which can be engaged along the perimeter of the flush button panel and electrically connected to the proximity sensor. The LED strip has the function of illuminating the surrounding area when the proximity sensor detects the presence of a user near the toilet and remains off when the proximity sensor detects no presence.
Advantageously, the LED strip can be connected, its intensity can be adjusted, and it can be activated/deactivated via an external device using a network connection.
The advantages offered by the present invention are clear in the light of the above description and will be even clearer from the accompanying figures and the related detailed description.
Description of the figures
The invention will hereinafter be described in at least a preferred embodiment thereof by way of non-limiting example with the aid of the accompanying figures, in which:
- FIGURE 1 shows a side perspective view of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application;
- FIGURE 2 illustrates a side perspective view of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application, when a removable protection 300 is engaged;
- FIGURE 3 shows a side perspective view of part of the internal components of the upper component 10 of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application; - FIGURE 4 shows a front perspective view of part of the internal components of the upper component 10 of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application;
- FIGURE 5 shows a front perspective view of part of the internal components of the upper component 10 of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application;
- FIGURE 6 shows a vertical section of the lower component 11 of an assemblable, anti-scale, ecological toilet cassette 100 according to an embodiment of the present patent application.
Detailed description of the invention
The present invention will now be described purely by way of non-limiting or binding example with the aid of the figures, which illustrate some embodiments relative to the present inventive concept.
With reference to FIGS. 1 to 6, the components of one of an assemblable, anti-scale and ecological toilet cassette 100 according to the present invention are shown, which, in addition to simplifying the assembly and maintenance steps through components that can be assembled with interlocking systems, is entirely assembled from polypropylene components, the latter obtained from recycled plastic materials, reducing, through the physical properties, the formation of limescale deposits. In particular, FIG. 1 shows a side view of the external components constituting an assemblable, anti-scale and ecological toilet cassette 100 according to the present invention; FIG. 2 shows, through a side elevation, the external components of the assemblable, anti-scale and ecological toilet cassette 100, when a removable protection 300 is engaged on the flush button panel 13; FIG. 3 shows in side perspective view the components present in the upper component 10, inside the compartment 12 and behind the flush push-button panel 13; FIG. 4, with a front view, shows other internal components engaged inside the compartment 12, precisely those relating to the level of the protective component 17; FIG. 5 through a further front view illustrates the components engaged inside the hollow part of the upper component 10; FIG. 6, through a vertical section, shows the components engaged inside the lower component 11.
The invention comprises two load-bearing portions, the upper component 10 and the lower component 11, which assembled together through alternating slots 14, create quick coupling systems. Furthermore, since the alternating slots 14 are located on the opposite and symmetrical sides of the upper component 10 and the lower component 11, they guarantee stability to the system, avoiding accidental disjunctions.
The assemblable ecological and anti-scale toilet cassette 100 is installed within wall structures by means of dedicated hooks 14’, the latter obtained on the external surface of the upper component 10 and of the lower component 11, thereby reducing the visual impact within the installation site and leaving exposed only the flushing push-button panel 13. Furthermore, the invention does not provide for any accessory coating, such as the usual polystyrene liners, allowing installation by using building adhesives, reducing the overall thickness of the wall structures prepared for installation.
Specifically, the upper component 10, produced in the form of a hollow parallelepiped, contains water inflow connections 200 on one side, on the other one it protects the system that controls the water amount enclosed within the entire flush system.
The lower component 11, likewise contains the flush actuation system and provides, in its lower part, a correct connection with the toilet. The lower component 11 is also produced in the shape of a hollow parallelepiped so as to contain water useful for flushing: it is produced in a different format based on the water flow rate chosen/requested by the user.
In the central part of the upper component 10 a compartment 12 is obtained, which allows the engagement and/or maintenance of the components relating to the flushing system.
A flush push-button panel 13 is engaged in said compartment 12 by means of interlocking systems, so as to be easily usable by the user after installation. The flush push-button panel 13 is composed of a small push-button panel 13’ and a large push-button panel 13”, so as to allow selecting, by pressing, between at least two flush modes: the choice of the small push-button panel 13’ corresponds to a smaller use of water than selecting the larger push-button panel 13”. The flushing function is ensured by the gap between the flushing buttons 13 ’- 13” and the secondary pins 16, the latter one for each button 13’-13” and in line with them. This gap is regulated, during installation, by means of primary pins 15, which in turn can be adjusted according to the thickness given by the plaster and any covering ceramics. Both the primary pins 15 and the secondary pins 16 are engaged inside the compartment 12 and are shaped on the free end so as to avoid using external tools to adjust the distance between the push-button panel 13 and the installation surface.
Behind the push-button panel 13, and inside the compartment 12, there is a protective component 17, which not only allows the operator, during the assembly steps, to access the inside of the flush system, but also to provide further protection to the internal components of the invention. Such protective component 17 is engaged by means of bayonet hooks 17’, facilitating assembly and maintenance operations.
Two actuation controls 18 are engaged on the surface of said protective component 17, one for each flush push-button 13’-13”, which are mobilized by the secondary pins 16 when a pressure occurs on said flush buttons 13’-13”. The actuation commands 18 allow, following the direct application of the load, by the user, on the flush buttons 13 ’-13”, the upward movement of the actuation levers 22-23. Furthermore, the actuation commands 18, by means of integrated torsion springs and the force of gravity, ensure a downward movement of the actuation levers 22-23: in this way, the torsion springs on one side reset the flush buttons 13’- 13” to their starting position and, on the other hand, provide the necessary force to the operating levers 22-23 to return to the closed position.
Moving on to the internal components of the lower component 11, a water conveyor 20 stands out, engaged in the lower portion, which allows, through fluid outlet holes, obtained in its upper part and each one for each flush button 13 ’-13”, the correct operation of the water flushing: the fluid outlet hole corresponding to the small flush button 13’, is provided at the top with a cylinder 24, so that, during the flushing step, a smaller quantity of water comes out. The operating levers 22-23 are engaged at said fluid outlet holes, each for each flush button 13 ’-13”. They are connected by lever mechanisms to the actuation controls 18 and both have spheres 22’-23’ in the lower part, larger in size than the fluid outlet holes of the previously described water conveyor 20, so as not to allow the leakage of water when not mobilized. The actuation levers 22-23 can be distinguished in a small actuation lever 22, corresponding to the lever mechanisms of the small flush button 13’ and a large actuation lever 23, corresponding to the lever mechanisms of the large flush button 13” : the large actuation lever 23 has a greater length than the small actuation lever 22 and in the central part it is reinforced by two circular reinforcements designed to guarantee, by means of supports installed on the internal walls of the lower component 11, the axiality between the large actuation lever 23 and the corresponding fluid outlet hole. While the spheres 22’ of the small actuation lever 22 is incorporated inside a cage 22”, the latter engaged in the top part of the cylinder 24, ensuring the same coaxiality between the small actuation lever 22 and the same cylinder 24. Furthermore, the spheres 22’ -23’, exploiting the shape and movement of the actuation levers 22-23, rebound when the actuation levers 22-23 are mobilized in the flushing step, thus avoiding the build-up of sediments.
The invention is completed by a float 19, connected to the aforementioned connections for the water inlet 200, which is engaged inside the upper component 10 via a float support 21 so as to be outside the free surface of the water, thus reducing the build-up of sediments, such as limescale, which can shorten the life of the system. The float 19, after the flushing and the water refilling has begun, interrupts the inflow of water once the capacity threshold of the lower component 11 has been reached. In this embodiment, the invention provides two supports for the float 21, near the right and left ends of the compartment 12, so as to adapt to different types of connections for the water inlet 200.
Finally, it is clear that modifications, additions or variants may be made to the invention described thus far which are apparent to those skilled in the art, without departing from the scope of protection that is provided by the appended claims.

Claims

Claims
1. Assemblable ecological and anti-scale toilet cassette (100), adapted for facilitating installation and maintenance work by using components assemblable by means of interlocking systems and eliminating threaded connections; said assemblable ecological and anti-scale toilet cassette (100) being entirely formed in polypropylene components, which are obtained from recycled plastic materials, so as to reduce by their physical properties the deposit/formation of limescale, and so as to render the same resistant to seismic events due to the high resilience/elasticity of said materials; said assemblable ecological and anti-scale toilet cassette (100) being characterized in that it comprises:
- at least an upper component (10) produced in the form of a hollow parallelepiped, adapted for containing water inflow connections (200); said upper component (10) being adapted for lodging/containing the system that controls the water amount enclosed within the entire flush system;
- at least a lower component (11), adapted for containing/lodging a flush actuation system and for providing an appropriate connection to the toilet bowl; said lower component (11) being produced in hollow parallelepipedal form for containing water usable for WC flushing; said lower component (11) being producible in different sizes depending on the water flow rate chosen by the user;
- at least a compartment (12) obtained in a central part of said upper component (10), adapted for allowing an engagement and/or a maintenance of the components of said flushing system;
- at least a push-button panel (13) usable for WC flushing, engaged in said compartment (12) by means of interlocking systems, so as to be easily usable by a user after installation; wherein said push-button panel (13) usable for flushing is provided at least with a small push button (13’) and at least a large push button (13”) for allowing to select, by exerting a pressure, between at least two flushing modes, wherein the selection of said small push button (13’) corresponds to using a smaller amount of water than the selection of said large push button (13”); wherein, said push-buton panel (13) is adapted for generating a gap between said flushing push buttons (13 ’-13”) and secondary pins (16) associated each to a respective push buton (13 ’-13”) and aligned therewith, and wherein said gap is adjusted by primary pins (15), which in turn are adjustable as a function of the thickness given by the plaster and any coating ceramics; wherein, said primary pins (15) and secondary pins (16) are engaged within said compartment (12) and are shaped at the free end in such a way as to avoid use of external tools to adjust the distance between said push buton panel (13) and an installation surface;
- at least a protective component (17) engaged behind said push-button panel (13) and adapted for allowing an operator during the mounting steps to have access to the interior of the flushing system; wherein said protective component (17) is engaged/mounted within said compartment (12) by means of bayonet fittings/hooks (17’) thus facilitating the installation and maintenance work; wherein said protective component (17) is adapted for providing additional protection to the internal components of the present invention;
- at least a plurality of actuation means (18), each of which is associated with a respective button (13 ’-13 ”) and is engaged/mounted on said protective component (17), said actuation means being driven/moved by said secondary pins (16) when a pressure is exerted on said flushing push buttons (13’-13”); wherein said actuation means (18) are adapted for allowing an upward displacement of actuation levers (22-23) upon application of a direct load/pressure by the user, on said flushing push buttons (13’-13”); wherein said actuation means (18) are adapted for ensuring a downward movement of said actuation levers (22-23) through the combined action of the gravity force and a force provided by torsion springs, where the later are arranged in said actuation means (18); wherein, said torsion springs are configured in such a way as to return said flushing push buttons (13’-13”) to their initial position and provide the force required to return said actuation levers (22-23) to a closure position; - at least a water guiding/channeling means (20) fixed to the lower portion of said lower component (11), adapted for allowing the proper operation of the water flushing, through water outlet holes obtained on an upper wall and associated each to a respective flushing push button (13’-13 ”); wherein, said water outlet holes corresponding to said smaller push buttons (13’) are provided with a cylinder (24) at their upper part, so that during flushing a lesser amount of water gets out;
- a plurality of said actuation levers (22-23), each of which corresponds to a flushing push button (13’-13”) and is located at said water outlet holes, wherein said actuation levers are connected by means of leverages to said actuation means (18) and present spheres (22’-23’) at their lower part, whose size exceeds the size of said water outlet holes of said water guiding/channeling means (20), so that these spheres prevent water outflow when they are not actuated; wherein said actuation levers (22-23) are subdivided into smaller actuation levers (22) corresponding to said leverages of said smaller flushing push buttons (13’), and larger actuation levers (23), corresponding to said leverages of said larger flushing push buttons (13”); wherein said larger actuation lever (23) has a greater length than said smaller actuation lever (22) and has two circular enlargements in a central part thereof, adapted to ensure an axial alignment of said larger actuation lever (23) with said water outlet hole of said water channeling means (20), by means of supports installed on the inner walls of said lower component (11); wherein said sphere (22’) of said smaller actuation lever (22) is enclosed/incorporated within a cage (22”) and the latter is engaged with/at an upper end of said cylinder (24), thereby ensuring the same axial alignment between said smaller actuation lever (22) and said cylinder (24); wherein said spheres (22’-23’) take advantage of the shape and movement of said actuation levers (22-23) and are apt to bounce upon activation of said actuation levers (22-23) during a flushing operation, thereby preventing an accumulation of sediments/deposits;
- at least a float (19) connected with said water inflow connections (200) and mounted within said upper component (10) by means of a float support (21) in such a way as to lie outside the free waterline, thus reducing an accumulation of deposits/sediments, such as lime, that could shorten the service life of the system; wherein said float (19), upon flushing and starting the water refilling process is adapted for interrupting water inflow once the capacity limit of said lower component (11) is reached; wherein, said float support (21) is mounted/engaged at the right and/or left end of said compartment (12) so as to be adaptable to different types of said water inflow connections (200); and in that said upper component (10) and said lower component (11) present alternating slots (14) in order to obtain quick coupling systems; wherein said alternating slots (14) are arranged on opposite sides and symmetrically of said upper component (10) and said lower component (11), thereby ensuring stability to the system and preventing accidental separation/detachment; and in that the cassette lacks any accessory lining/coating, such as polystyrene liners, so that it is installed by using adhesive primers of the building sector, thus reducing the total thickness/depth in wall structures prepared for the installation. Assemblable ecological and anti-scale toilet cassette (100), according to claim 1, characterized in that it is installed within said wall structures by means of dedicated hooks (14’) obtained on the external surface of said upper component (10) and of said lower component (11), by reducing the visual impact within the installation site and leaving exposed only the flushing push-button panel (13). Assemblable ecological and anti-scale toilet cassette (100), according to claim 1 and 2, characterized in that it comprises a removable protection (300) adapted for protecting its internal components during transportation and mounting operations; wherein said removable protection (300) is engaged and/or removed by activating or respectively deactivating some interlocks which in this way facilitate the work of the installers. Assemblable ecological and anti-scale toilet cassette (100), according to anyone of the preceding claims, characterized in that the components, which are entirely made of recycled plastics, are produced by means of injection molding by considerably reducing the problems of air bubble formation and thickness inhomogeneity.
5. Assemblable ecological and anti-scale toilet cassette (100), according to anyone of the preceding claims, characterized in that said components in polypropylene are plasma treated, this implying significant modifications in their surface properties, particularly in the surface energy, wettability, adhesion, electrical surface resistance, dielectric loss tangent, dielectric permittivity, catalytic activity, tribological parameters, gas absorption and permeability characteristics, thus allowing the invention to be compatible with distribution plants, ceramic materials and composites; wherein, said plasma treatment is adapted for allowing the use of silicone elements in junctions between different components, thus increasing adhesion and limiting water leakage.
6. Assemblable ecological and anti-scale toilet cassette (100), according to anyone of the preceding claims, characterized in that said upper component (10) and said lower component (11) are internally and/or externally lined with a sound absorbing material so as to reduce the noise caused by the flushing and water refill.
7. Assemblable ecological and anti-scale toilet cassette (100), according to anyone of the preceding claims, characterized in that it comprises a proximity sensor mounted on the surface of said flushing push-button panel (13) and adapted for detecting the user presence near the toilet bowl, and for mechanically actuating internal arms which exert a pressure on at least one of said buttons (13’-13 ”), thus activating/triggering the flushing process when the user recedes from the toiled bowl.
8. Assemblable ecological and anti-scale toilet cassette (100), according to claim 7, characterized in that said proximity sensor and said internal arms are supplied with energy by means of an internal replaceable battery and/or by an electric system.
9. Assemblable ecological and anti-scale toilet cassette (100), according to claim 7 and 8, characterized in that it comprises a LED strip installed along the periphery/perimeter of said flushing push-button panel (13) and connected to said proximity sensor, said LED strip being adapted for illuminating the nearby area when said proximity sensor detects the user presence near said toilet bowl; wherein said LED strip is off when the proximity sensor does not detect any user presence in the zone around the toilet bowl. Assemblable ecological and anti-scale toilet cassette (100), according to claim 9, characterized in that said LED strip is connectable, intensity adjustable, and turnable on or off, with/by an external device relying on a network connection.
PCT/IB2023/055516 2022-05-31 2023-05-30 Assembleable, ecological and anti-scale toilet cassette WO2023233282A1 (en)

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