US20190153713A1 - Flush toilet - Google Patents

Flush toilet Download PDF

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Publication number
US20190153713A1
US20190153713A1 US16/193,583 US201816193583A US2019153713A1 US 20190153713 A1 US20190153713 A1 US 20190153713A1 US 201816193583 A US201816193583 A US 201816193583A US 2019153713 A1 US2019153713 A1 US 2019153713A1
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United States
Prior art keywords
flush water
flush
water outlet
toilet
outlet opening
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Abandoned
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US16/193,583
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English (en)
Inventor
Ralf Derksen
Alexander Geringer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Villeroy and Boch AG
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Villeroy and Boch AG
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 Villeroy and Boch AG filed Critical Villeroy and Boch AG
Assigned to VILLEROY & BOCH AG reassignment VILLEROY & BOCH AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GERINGER, ALEXANDER, DERKSEN, Ralf
Publication of US20190153713A1 publication Critical patent/US20190153713A1/en
Abandoned legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • E03D11/08—Bowls with means producing a flushing water swirl
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D2201/00—Details and methods of use for water closets and urinals not otherwise provided for
    • E03D2201/40—Devices for distribution of flush water inside the bowl

Definitions

  • the invention relates to a flush toilet according to the preamble of claim 1 .
  • Flush toilets have been known for some considerable time, wherein the given toilet is provided with a flush.
  • the flushing of a flush toilet has two main functions. On the one hand, the flushing is intended to serve to flush the entire inner surface of the toilet bowl rendering it clean and on the other hand solids and sewerage are intended to be removed from the siphon by the flushing, or by means of the flush.
  • the features of a functionally successful flush toilet consist in cleaning a maximum inner surface of the toilet bowl and removing solids and water from the siphon with a maximum flushing force, wherein both the cleaning of the toilet bowl surface and the flushing of the siphon should take place splash-free.
  • design features such as a hygienic surface, a cleaning-friendly design without dead corners and quiet flushing are also desired. These properties are often antagonistic and compromises have to be made in order to achieve a required balance between functionality, performance, design and producibility.
  • the size, shape and design of a toilet bowl have a substantial influence here, since, in the case of a large inner surface of the toilet bowl to be cleaned, the inflowing water jet has to be deflected for logical reasons and distributed in the bowl, so that the entire bowl surface is covered, or acted upon by flush water.
  • a water distributor is often used, which is arranged between the water inflow and the toilet bowl and divides the water into a plurality of sub-flows in order to clean the toilet bowl.
  • a water distributor is located in the middle of the rear wall of the toilet and is constituted structurally as part of the rim, although in its physical dimensions it can also extend locally downwards and/or out of the rim into the toilet.
  • the flush water is conducted around the two concave inner sides of the toilet bowl, wherein, depending on the water distributor, some water is conducted directly downwards into the siphon.
  • Such water distributors are also found in modern “rimless” toilets, wherein these water distributors are arranged in the middle of the upper rear wall of the bowl. Since these “rimless” toilets do not have a rim, the water distributors used with “rimless” toilets are usually arranged in such a way that these water distributors project into the toilet bowl, so that the exiting water jets can be directed themselves onto the bowl, or the bowl surface. The water leaves the distributor through a series of outflow holes or slots, which are provided for example in a bowl.
  • More recent flushing methods work with a swirling water flow pattern, wherein the inflow water is introduced tangentially along the toilet bowl surface and swirls in a spiral-like manner in the toilet bowl.
  • This differs from the traditional method, wherein water flows at the left and right around the inner surface of the toilet bowl, then meeting in the middle at the front on the user side.
  • the force of gravity also leads to the flush water losing its impetus when it moves in a circular motion in the toilet bowl and to it losing height, which makes it difficult to achieve a completely circumferential circulation in the toilet bowl, so that the flush water returns to the starting point, i.e. the water distributor, and pours over the water distributor and/or its surroundings, in order to flush these areas of the toilet.
  • the soiling problem of the water distributor and the problem of cleaning the distributor are also not solved, therefore, with these previously known so-called-called vortex flushers.
  • a further problem also consists in the fact that, especially in the case of “rimless” toilets, a relatively large outflow hole has to be provided in the surface of the toilet bowl for the delivery of flush water. Since this outflow hole is located in the rear part of the toilet bowl, it is arranged precisely in the field of vision of a user of the toilet, which on the one hand is very unsightly aesthetically, since unavoidable soiling usually accumulates at this outflow hole, and on the other hand also often leads to the water, usually flowing out with pressure, splashing on account of the soiling.
  • a further method for flushing a toilet bowl is a use of a plurality of individual water distributors, which are arranged around an upper rim of the toilet.
  • different distributor models are known, which however all have a complex geometry and therefore complicated production in common, which is very disadvantageous.
  • at least one of the distributors usually has to be arranged in the front part of the bowl, so that a flushing direction of the flush water is directed backwards.
  • the inflowing water which is fed from behind to the toilet, must make a 180° turn, in order to change the direction such that the flow direction of the flush water is directed backwards.
  • Such a sharp turn close to the water outlet in the front region of the toilet bowl however, reduces the water pressure considerably and thus reduces the available flushing force.
  • a further problem of previous flushing systems also consists in the fact that a water inlet into the siphon is difficult to control. This applies especially when use is made of more than one water outflow hole and/or an additional nozzle hole in the siphon.
  • the problem underlying the invention is to solve the aforementioned problems and to provide a flush toilet which enables an optimised and hygienic flushing of an inner surface of the toilet bowl and the siphon.
  • a flush toilet with a toilet unit comprising a toilet bowl and a flush water outlet, via which flush water can flow into the toilet unit, wherein the flush water outlet is arranged asymmetrically relative to an imaginary centre line, which extends essentially centrally from a front end of the toilet unit facing a user during the flushing operation to an opposite essentially central rear end of the toilet unit.
  • An essential point in the invention consists in the fact that the flush water outlet is arranged asymmetrically on the toilet unit, so that it is possible to deliver flush water through the flush water outlet asymmetrically relative to an imaginary centre line, which extends essentially centrally from a front end of the toilet unit facing a user during the flushing operation to an opposite rear end of the toilet unit.
  • An important point of the invention also consists in the fact that, as a result of the asymmetrical arrangement of the flush water outlet, it is possible to flush the inner surface of the toilet bowl in such a way that a part of the flush water is not conducted, as previously, directly from the flush water outlet in the direction of the siphon, but first via a side wall at the inner side of the toilet bowl, so that a circular flow arises, which wets and therefore cleans the inner surface of the toilet bowl with flush water better than with a central provision of the flush water outlet at the rear side of the toilet bowl inner side.
  • the asymmetrical arrangement of the flush water outlet prevents, in an extremely advantageous and at the same time extremely straightforward manner, the flush water outlet from being soiled during use of the toilet according to the invention, since the flush water outlet is no longer arranged in the toilet bowl directly to the rear of a user.
  • the flush water outlet is arranged according to the invention in a rear lateral region, in particular a rear lateral corner region, of the toilet bowl, wherein the flush water is delivered not downwards, but in an essentially horizontal direction tangentially into the toilet bowl.
  • the flush water spins in the form of a circular flow in the toilet bowl and flushes over a substantial part of the inner surface of the toilet bowl before the flush water then flushes and therefore cleans the siphon.
  • a rear lateral corner region of the toilet bowl is defined by a lateral rear region of the toilet bowl which, depending on the shape of the toilet unit, actually represents a corner, optionally a rounded corner, of the toilet bowl or a rear region of the toilet bowl which, in the toilet bowl at the level of the first flush water outlet opening, has a distance from the imaginary centre line which lies in the range from 70% to 100%, preferably 75% to 100%, and particularly preferably 80% to 100% of a maximum distance of a rear lateral inner surface of the toilet bowl from the imaginary centre line.
  • the maximum distance of a rear lateral inner surface of the toilet bowl from the imaginary centre line of the toilet bowl may be different on the two sides of the centre line.
  • rear side wall is understood to mean the region of the toilet bowl in which a tangent drawn at the level of the lower boundary of the second flush water outlet opening to the inner wall of the toilet bowl encloses an angle with the imaginary centre line between 90° and 45°.
  • the region of a front side wall of the toilet bowl is to be understood similarly.
  • the region of a lateral side wall of the toilet bowl is to be understood as the region of the toilet bowl in which a tangent drawn at the level of the lower boundary of the second flush water outlet opening to the inner wall of the toilet bowl encloses an angle with the imaginary centre line between 45° and 0°, wherein an angle of 0° between the tangent and the imaginary centre line denotes a parallel course of the tangent and the imaginary centre line.
  • the inner periphery of the toilet bowl is to be understood as a line at the level of the lower boundary of the second flush water outlet opening along the inner wall of the toilet bowl, which extends around the circumference of the inner wall of the toilet bowl.
  • the flush water outlet comprises at least a first flush water outlet opening, through which flush water can be delivered in a first initial flushing direction, and at least a second flush water outlet opening, through which flush water can be delivered in a second initial flushing direction. It is thus possible to flush the toilet bowl in opposite directions, wherein flush water that is delivered through the first flush water outlet opening is initially conducted along a lateral inner side wall of the toilet bowl, and flush water that is delivered through the second flush water outlet opening initially flows along a rear inner side wall of the toilet bowl.
  • the flush water that is conducted along the inner side wall of the toilet bowl preferably flows from a rear lateral section of the toilet bowl, particularly preferably from a “corner region” of the toilet bowl, first along the lateral wall of the toilet bowl into a front region of the toilet bowl and, following this, again in the direction of the rear wall of the toilet bowl, where the water delivered from the first flush water outlet opening then meets the flush water delivered from the second flush water outlet opening and flows in the direction of the siphon.
  • the water delivered from the second flush water outlet opening is initially conducted not in the direction of the lateral inner wall of the toilet bowl, but in the direction of the inner rear wall of the toilet bowl, so that the water delivered from the second flush water outlet opening flows against the flush water which is delivered from the first flush water outlet opening and deflected backwards on account of the curved shape of the inner side of the toilet bowl.
  • the free cross-section of the first flush water outlet opening is larger than a free cross-section of the second flush water outlet opening, so that a first flush water quantity that is delivered from the first flush water outlet opening is greater than a second flush water quantity that is delivered from the second flush water outlet opening.
  • this is particularly advantageous, since the first flush water quantity is intended to flush over a significantly larger surface area of the inner surface of the toilet bowl rendering it clean, whereas the second flush water quantity cleans only the rear back wall of the toilet bowl.
  • the water delivery from the first flush water outlet opening and/or the second flush water outlet opening takes place with an initial flushing direction, wherein the first and/or the second initial flushing direction extend in an essentially horizontal direction of ⁇ 0° to 5° relative to a horizontal line and the flush water is thus delivered essentially horizontally.
  • the first initial flushing direction can if desired be directed slightly upwards, in order to counteract somewhat a gravitational effect by which the flush water is necessarily guided downwards in the direction of the siphon and thus to achieve an effect such that the first flush water flow reaches the rear part of the toilet bowl in as high a position as possible.
  • the first initial flushing direction can also be directed slightly downwards, which may be desirable especially in the case of “rimless” toilet bowls, in order to reliably prevent splashing over the “rim”.
  • the first and the second initial flushing direction are orientated with respect to one another at an angle in the range from 20° to 170°, preferably at an angle in the range from 45° to 140°, and particularly preferably at angle in the range from 70° to 130°.
  • this thus makes it possible to make settings in the optimum manner such that the first flush water flow is initially delivered tangentially along a lateral inner side wall of the toilet bowl, and the flush water that is delivered through the second flush water outlet opening flows initially and also tangentially along a rear inner side wall of the toilet bowl.
  • a ledge or a plurality of ledges and/or a shoulder or a plurality of shoulders which act as a water guiding device, wherein the flush water exiting from the first flush water outlet opening and/or the flush water exiting from the second flush water outlet opening is conducted along a ledge arranged in the interior of the toilet bowl and/or along a shoulder arranged in the interior of the toilet bowl.
  • the water exiting from respective flush water outlet openings can be delivered, in particular initially, at a specific, predefined level in the toilet bowl and can be held at this level which is determined by the water guiding device.
  • the water guiding device(s) provided according to the invention i.e. in particular the ledge and/or the shoulder, taper from an end close to the respective flush water outlet opening to an end remote from the respective flush water outlet opening, in particular down to zero.
  • the taper can be constituted such that the ledge or the shoulder only become narrower, so that the guiding area for the flush water becomes smaller on the ledge or the shoulder with an increasing distance from the respective flush water outlet opening.
  • the taper can first comprise an, optionally sharp, edge directed in the direction of the inner side of the toilet bowl, which edge is optionally constituted increasingly rounded at its inner end facing the inner side of the toilet bowl with an increasing distance from the respective flush water outlet opening.
  • the ledge provided in the toilet bowl or the shoulder provided in the toilet bowl can also comprise openings, wherein the openings enable a partial discharge of the flush water guided on the ledge and/or the shoulder.
  • an at least one water guiding device constituted on the inner surface of the toilet bowl according to the invention can also be formed and defined by the fact that the inner surface of the toilet bowl comprises a protrusion running essentially horizontally or, if desired, also in particular slightly inclined, which protrusion forms the “ledge”, wherein the protrusion has a continuous smooth course, when viewed vertically, with two turning points, at which an inner contour of the toilet bowl first transforms from a concave into a convex form and then back into a concave form.
  • the “ledge” can also be formed by the fact that an inner contour of the toilet bowl first running in a concave manner in the case of an upright flush toilet, viewed in a vertical direction from top to bottom, transforms into an inner contour of the bowl running in a convex manner, which inner contour, depending on the embodiment, runs up to the siphon of the flush toilet in a continued convex manner or in a conically linear manner.
  • the water guiding device extends to a differing extent over the inner surface of the toilet bowl in the respect of first flush water outlet opening and the second flush water outlet opening, wherein the water guiding device assigned to the first flush water outlet opening preferably extends from the first flush water outlet opening over at least a tenth up to a half or almost completely along the inner periphery of the toilet bowl in the direction of the rear inner side wall of the toilet bowl and wherein the water guiding device assigned to the second flush water outlet opening preferably extends from the second flush water outlet opening over essentially an eighth up to half the length of the rear inner side wall of the toilet bowl.
  • the respective water guiding device only indirectly adjoins the respective flush water outlet openings and in the case of the first flush water outlet opening already ends at a distance in a range from 5 cm to 25 cm, preferably in a range from 8 cm to 20 cm and particularly preferably in a range from 8 cm to 15 cm and in the case of the second flush water outlet opening at a distance in a range from 1 cm to 15 cm, preferably in a range from 3 cm to 12 cm and particularly preferably in a range from 3 cm to 10 cm.
  • the respective water guiding device does not lie directly adjacent to a respectively assigned flush water outlet opening, but rather that the flush water exiting from the respective flush water outlet opening first flows virtually “freely”, before it is “caught” as it were at a certain, predetermined distance by the flush water outlet opening and is conducted at a specific level into and around the sanitary bowl.
  • a predetermined distance can lie according to the invention in a range from 0.1 cm to 15 cm, preferably in a range from 1 cm to 10 cm and particularly preferably in a range from 1.5 cm to 5 cm.
  • Such an embodiment enables in an inventive way a bifurcated tangential flushing of the toilet bowl, wherein it is defined, by the distance of the water guiding device from the flush water outlet opening, how much flush water is to be conducted via the water guiding device and how much flush water is to be conducted directly into the regions of the toilet bowl lying beneath the water guiding device and at what angle the separation of the respective flush water flows is to take place. Said angle can also be set via an end of the water guiding device that is facing in the respective flush water outlet opening.
  • the free cross-section of the first flush water opening lies in a range from 4 mm to 35 mm, preferably in a range from 10 mm to 32 mm, and particularly preferably in a range from 15 mm to 30 mm
  • the free cross-section of the second flush water opening lies in a range from 4 mm to 35 mm, preferably in a range from 4 mm to 15 mm, and particularly preferably in a range from 4 mm to 12 mm, wherein the quantity of the flush water exiting from these flush water outlet openings can be adjusted by the selection of the size of the opening, or of the free cross-section of the flush water outlet openings.
  • the flush water outlet openings can have a round or oval, but if desired also a polygonal cross-section, wherein in particular a very oval-shaped cross-section is particularly preferred for the polygonal flush water outlet opening.
  • first and/or the second flush water outlet opening can comprise either a single outlet opening or, for example by means of a grid, be split up into a multiplicity of single outlet openings arranged separated from one another, but adjacent to one another. According to the invention, it is thus possible to fan out the exiting flush water in a jet-like manner and thus to wet the surface area of the inner surface of the toilet bowl acted upon by the flush water in a defined and selective manner.
  • the flush water outlet is constituted as a flush water distributor, which is integrated into the toilet unit.
  • a flush water distributor which is integrated into the toilet unit.
  • the flush water distributor is integrated into the toilet unit in the form of a prefabricated component.
  • the prefabricated component is preferably produced from a ceramic material, introduced in the green state into the ceramic material provided for the production of the sanitary installation and positioned with a precise fit therein and then fired and optionally finally treated together with the ceramic material provided for the production of the sanitary installation.
  • the flush toilet according to the invention thus enables optimum flushing of the sanitary bowl and an optimum removal of any residues from the toilet bowl, since the latter can be acted upon in a targeted manner by the flush water, which flows according to a precisely predefined flow pattern out of the flush water distributor into the sanitary bowl, without disruptions and/or undesired turbulence occurring in the flush water flow.
  • the flush water distributor can be formed from a first hollow element and a second hollow element connected to the first hollow element, wherein the first and the second hollow element jointly form a fluid channel, which emerges into two fluid outlet openings pointing in different directions, which respectively form the first flush water outlet opening and the second flush water outlet opening, and wherein the flush water distributor further comprises a fluid inlet opening, which communicates with the fluid channel and which is a flush water inlet opening.
  • the embodiment of the flush water distributor as a prefabricated part which is composed of hollow elements which have been either subsequently joined together or directly produced in one piece to create the prefabricated component, offers the decisive inventive advantage that these hollow elements on the one hand can be produced easily and with great dimensional accuracy and moreover can be combined with one another in an extremely flexible manner, so that a fluid channel or a plurality of fluid channels can be formed, which are constituted either very simply and largely linear, or in a very complex way and provided with bends and curves. In this way, even complicated flush water supply devices can thus be produced in a straightforward manner and yet very precisely, which are then installed in the flush toilet according to the invention and integrated into the latter. It should be pointed out that the flush water distributor used according to the invention can also comprise more than two flush water outlet openings.
  • a further not insignificant advantage of the inventive use of a flush water distributor constituted as a prefabricated component also consists in the fact that such a flush water distributor can be arranged very close to the wall with respect to the inner surface of the toilet bowl in the toilet unit, so that the flush liquid exiting from the flush water outlet openings can be conducted in the optimum manner and with an almost laminar flow tangential to the inner side of the toilet bowl, which contributes to a further inventively improved flushing of the flush toilet according to the invention.
  • the flush water outlet can also be constituted as a flush water distributor, which can be attached to the main flush water opening which is provided in the toilet unit and which opens in the direction of the toilet bowl.
  • a flush water distributor can thus optionally be attached subsequently to a toilet unit and/or exchanged. This has the advantage that, if desired, a flush water distributor adapted to the needs of the user can be used.
  • the flush water distributor has a width extension in the range from 30 mm to 70 mm, preferably in the range from 30 mm to 50 mm and particularly preferably in the range from 35 mm to 40 mm, and a depth extension in the range from 30 mm to 50 mm, preferably in the range from 30 mm to 40 mm and particularly preferably in the range from 35 mm to 40 mm, wherein the first and the second flush water outlet opening are spaced 30 mm to 80 mm, preferably 40 mm to 70 mm and particularly preferably 55 mm to 65 mm from one another, related to their closest edges facing one another.
  • the flushing system according to the invention is particularly well suited for a “rimless” flush toilet.
  • the water distributor according to the invention is constituted compact and discharges the flush water in two opposite directions.
  • the main flush water is conducted forwards from a large outlet and a small jet of flush water is conducted backwards, in order to clean the surface of the inner side of the toilet bowl in this region which is usually neglected.
  • the main flow flows with an opposite flow direction against the smaller flow, and the effect of the individual flush water flows meeting is that the combined flush water flow is conducted, or guided, into the siphon, wherein a specific direction can be controlled by geometrical factors of the water distributor itself.
  • the toilet is connected to a water source, such as for example a water tank, by a water inlet.
  • the water inlet which is usually arranged centrally relative to the toilet unit, is connected for this purpose to a water channel, which is hidden in the ceramic behind the surface of the WC bowl.
  • the water flows through the water inlet into the water channel to the water distributor used according to the invention, where the water flow is divided and flows into the WC bowl through the two flush water outlet openings of differing size.
  • the large flush water outlet opening is located on the upper side of the toilet bowl and conducts a large part of the flush water forwards, inclined tangentially into the toilet bowl, wherein the flush water thereby flows around the inner side of the toilet bowl along an edge running laterally at the inner side of the toilet bowl.
  • the edge tapers to zero before it reaches the rear wall of the toilet bowl.
  • the edge or the ledge can also extend completely and with the same thickness around the entire inner surface of the toilet bowl. An embodiment without such an edge and without such a ledge is also possible according to the invention.
  • the small flush water jet directed backwards is designed for flushing the toilet bowl especially in this region and possibly does not require an edge or a ledge.
  • the small flush water outlet opening is located in the rear upper part of the toilet bowl and conducts the water out against the main flow.
  • a bend is provided in the interior in the water distributor, in order to deflect the flush water flow backwards in the direction of the rear inner surface of the toilet bowl.
  • a small water jet thus enters tangentially along the smooth, rear part of the toilet bowl. This is the part of the toilet bowl which usually cannot be cleaned with a normal water distributor or can be so only with the constantly falling main water flow.
  • the water distributor insofar as the latter projects out of the toilet unit, is approximately 35 mm high, 40 mm wide and 35 mm deep.
  • the two holes are arranged at a distance of approximately 60 mm and have an inner angle of 110 degrees.
  • the position of the distributor is located approximately 60 degrees offset in the toilet bowl, and more precisely related to a centre line which extends from front to rear relative to the toilet bowl.
  • the entire flush water flow that is conducted into the siphon then brings about the siphon flushing.
  • the water distributor divides the respective flushing points of emphasis and conveys the flush water flow around in such a way that the inner side of the toilet bowl and the components located in the toilet bowl are cleaned in the optimum manner.
  • FIG. 1 shows a diagrammatic representation of the structure and the mode of functioning of the inventive flush toilet according to an embodiment of the invention.
  • FIG. 2 shows a diagrammatic representation of the inventive flush toilet according to the embodiment shown in FIG. 1 .
  • FIG. 1 shows a diagrammatic representation of the structure and the mode of functioning of flush toilet 10 according to the invention.
  • Flush toilet 10 comprises a toilet unit 30 , which comprises a toilet bowl 20 .
  • flush toilet 10 comprises a flush water outlet 40 , which is arranged in a rear lateral corner region of the toilet bowl 20 and from which flush water can pour into toilet bowl 20 .
  • Flush water outlet 40 from its part, comprises the first flush water outlet opening 42 , from which flush water can flow out in the direction of a first initial flushing direction 52 along a lateral inner side wall 62 of toilet bowl 20 .
  • flush water outlet 40 comprises a second flush water outlet opening 44 , from which flush water can flow out in the direction of a second initial flushing direction 54 along a rear inner side wall 64 of toilet bowl 20 .
  • the flush flow flowing out of first flush water outlet opening 42 circulates along lateral inner side wall 62 assigned to first flush water outlet opening 42 in the direction of the front inner side wall of toilet bowl 20 and then in the direction of the opposite lateral inner side wall of toilet bowl 20 .
  • flush flow flowing out of second flush water opening 44 flows, corresponding to second initial flushing direction 54 , proceeding from second flush water outlet opening along rear inner side wall 64 in the direction of the opposite inner side wall of toilet bowl 20 , where the flush water flow flowing out of first flush water outlet opening 42 meets second flush water flow flowing out of second flush water outlet opening 44 and, as a result of this meeting, is deflected in each case downwards, i.e. in the direction of the siphon.
  • first flush water outlet opening 42 and second flush water outlet opening 44 are each directly adjoined by a ledge 80 constituted as a shoulder 80 ′, which in each case is constituted such that flush water flowing out of the respective flush water outlet opening first flows above and/or on the respective shoulder and thus first remains, against the force of gravity, in the upper region of toilet bowl 20 and, only at a certain distance from the respective flush water outlet opening, circulates with a downward tendency through toilet bowl 20 .
  • Respective shoulder 80 ′, or ledge 80 formed by shoulder 80 ′ tapers, in particular with respect to its width, i.e.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)
US16/193,583 2017-11-17 2018-11-16 Flush toilet Abandoned US20190153713A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102017127187 2017-11-17
DE102017127187.2 2017-11-17
DE102018121465.0A DE102018121465A1 (de) 2017-11-17 2018-09-03 Spültoilette
DE102018121465.0 2018-09-03

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US20190153713A1 true US20190153713A1 (en) 2019-05-23

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Application Number Title Priority Date Filing Date
US16/193,583 Abandoned US20190153713A1 (en) 2017-11-17 2018-11-16 Flush toilet

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US (1) US20190153713A1 (fr)
EP (2) EP3486384B1 (fr)
CN (1) CN209837222U (fr)
AU (1) AU2018263978A1 (fr)
DE (2) DE102018121465A1 (fr)
RU (1) RU2018140027A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190153714A1 (en) * 2017-11-17 2019-05-23 Villeroy & Boch Ag Sanitary installation
US11346092B2 (en) * 2020-02-28 2022-05-31 Toto Ltd. Flush toilet
US11782302B2 (en) 2020-02-26 2023-10-10 Wuhan China Star Optoelectronics Technology Co., Ltd Display device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN218713669U (zh) * 2022-08-12 2023-03-24 厦门科牧智能技术有限公司 一种马桶座体及马桶

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EP3951110B1 (fr) 2024-01-10
AU2018263978A1 (en) 2019-06-06
EP3486384B1 (fr) 2022-01-19
CN209837222U (zh) 2019-12-24
RU2018140027A (ru) 2020-05-13
EP3951110A1 (fr) 2022-02-09
DE102018121465A1 (de) 2019-05-23
EP3486384A1 (fr) 2019-05-22

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