The present invention relates to a toilet basket having a flushing water distributing element.
For automatic cleaning of toilet bowls, it is known to attach active-substance preparations in lump form in a cage-like container to the inner rim of the toilet bowl. With each flushing operation, a portion of the active substance becomes dissolved in the flushing water and is distributed with the water into the bowl.
Active-substance preparations used in such applications can be shaped into dimensionally stable, non-deliquescent blocks that still possess sufficient solubility so that a sufficient quantity of active substances is delivered into the water during the short flushing phase. It is also important that the active-substance block remain unmodified after the flushing operation, aside from a scent delivery.
An example of one such active-substance preparation is described in German Patent Application Publication No. 34 24 317 A1. The preparation contains anionic and nonionic surfactants, perfume, cellulose powder, rinse-out regulators, inorganic salts, complexing agents, lime-dissolving acids, antimicrobial active substances, plasticizers, and further usual additives.
Single-use toilet baskets which must be disposed of after the active-substance block is completely dissolved are known. More environmentally favorable are the (likewise known) refillable toilet baskets, two of which are described in DE 80 01 994 U1 and DE 34 23 758 A1.
Those toilet baskets known for receiving lump-type toilet cleaning blocks are typically not usable for pastes or liquids. This is because the paste or liquid is not intended to flow or drip spontaneously out of the basket after completion of the flushing operation. In addition, only a defined fraction of the liquid or paste is to be delivered at each flushing operation. This fraction of active-substance preparation delivered should be as identical as possible at each flushing operation. Toilet baskets of this kind for pasty or liquid preparations are known, for example, from DE 19520145A1 or from EP 1334239B1.
Also known in the art are multi-chamber receptacles for active-substance preparations described above, which are suspended in the toilet bowl in such a way that in the context of the flushing operation of the toilet bowl with water, an active-substance delivery from the toilet basket into the toilet bowl occurs. As a result of the inhomogeneous flow conditions within the flow of flushing water, inhomogeneous emptying of the chambers can occur depending on the positioning of the toilet basket at the edge of the toilet bowl.
A substantial disadvantage of all these toilet baskets is that metering depends substantially on the particular local flow conditions in the toilet bowl during the flushing operation. These flow conditions can be very different depending on the type of toilet and positioning of the toilet basket in or on the toilet bowl. It may happen, for example, that with some types of toilet, no active-substance release from the toilet basket takes place, since no water, or insufficient water, flows over the toilet basket during the flushing operation, resulting in the metering mechanism of the toilet basket not being triggered.
Release of active substances from toilet dispensers of this kind is usually accomplished by penetration of flushing water through openings in the toilet dispenser, wherein the active substances are surface-dissolved and, upon exit of the flushing water through corresponding exit openings, are discharged from the toilet dispenser and carried along. Depending on the arrangement of the toilet dispenser in the toilet, the intensity of flow through it differs because of the often locally very different flow conditions of the flushing water outlet at the rim of the toilet bowl, resulting in only a diffuse delivery of active substances being implemented. This inhomogeneous active-substance delivery represents a substantial disadvantage.
This is particularly problematic if the toilet basket is embodied in an elongated, “linear” fashion, since the aforementioned flow conditions can result in a locally inhomogeneous rinsing of the active substances out of such toilet baskets, such as those described in U.S. Patent Application Publication No. 2007/0245470 A1.
The same also applies to toilet baskets for delivering liquid or gelled active-substance preparations, in which, depending on the configuration of the toilet basket, a distributing element can be provided by means of which, in particular, the liquid active-substance preparations can be delivered by the fact that the active-substance preparation(s) are firstly distributed onto the distributing element in order then to be flowed over by flushing water and delivered into the flushing water. Here as well, the degree of rinsing out is critically dependent on position and on the flow conditions in the toilet.
The present invention therefore attempts to make available a toilet basket that ensures the most homogeneous possible delivery of preparation into the flushing water.
This is achieved by a toilet basket for solid and gelled preparations having at least one container for receiving at least one preparation, wherein the container is positionable below the toilet rim so that flushing water can flow over it when the toilet is flushed, and having at least one inlet opening and one outlet opening in the container wall for the flushing water, a holder for mounting the toilet basket on the bowl rim, and a flushing water distributing element arranged and configured on the toilet basket so that the flushing water distributing element is impinged upon by flushing water upon flushing and an equalized delivery of flushing water into the inlet opening of the container is produced. This is further achieved by a toilet basket for liquid preparations comprising at least one container for receiving at least one preparation and having at least one outlet opening, a preparation distributing element in the shape of a plate having an impingement region over which flushing liquid flows in the context of the flushing operation, wherein the interior of the container is continuously in communication with the preparation distributing element via the outlet opening, with interposition of an arrangement that prevents free flow of the active-substance fluid, a holder for mounting the toilet basket onto the bowl rim, and a flushing water distributing element arranged and configured on the toilet basket so that the flushing water distributing element is impinged upon by flushing water upon flushing and an equalized delivery of flushing water onto the preparation distributing element is produced.
In a first embodiment of the invention, the toilet basket for receiving solid or gelled preparations comprises at least one container for receiving at least one preparation. The container is positionable below the toilet rim in such a way that flushing water can flow over it when the toilet is flushed. The container has at least one inlet opening and one outlet opening shaped in the container wall for the flushing water, and a holder for mounting the toilet basket on the bowl rim. A flushing water distributing element is arranged and configured on the toilet basket so that the flushing water distributing element is impinged upon by flushing water upon flushing, resulting in an equalized delivery of flushing water into the inlet opening of the container being produced.
In another embodiment, the toilet basket is designed for receiving liquid preparations and comprises at least one container for receiving at least one preparation, the container having at least one outlet opening, and a plate-like preparation distributing element having an impingement region over which flushing liquid flows during the flushing operation. The interior of the container is preferably continuously in communication with the preparation distributing element via the outlet opening, with interposition of an arrangement that prevents free flow of the active-substance fluid. The toilet basket further includes a holder for mounting the toilet basket on the bowl rim, as well as a flushing water distributing element arranged and configured on the toilet basket so that the flushing water distributing element is impinged upon by flushing water upon flushing, resulting in an equalized delivery of flushing water onto the preparation distributing element being produced.
An “equalized delivery” is understood for purposes of this Application as a delivery more homogeneous as compared to a toilet basket not having a flushing water distributing element, with flushing water entering into the inlet openings of the container by way of an equalized distribution of flushing water and/or more homogeneous flow distribution along the toilet basket.
In a preferred embodiment, the toilet basket is elastically embodied so that in the installed state it follows the contour of the toilet bowl. In order to achieve this, the toilet basket can be formed from an elastic material or can comprise spring points on which the toilet basket is movably mounted. In particular, the toilet basket can also be made of substantially dimensionally stable containers connected to one another via an elastic connection.
A “container” is understood to refer to a packaging means suitable for at least partly encasing and/or holding together a solid, liquid, or gelled preparation.
The toilet basket according to the present invention can have one or a plurality of containers. In the embodiment comprising a plurality of containers, they can be arranged next to one another, preferably in a line.
It is further preferred that more than one container be provided on the toilet basket, each receiving either a common preparation or two or more preparations differing from one another. In this manner, preparations that are not shelf-stable with one another can be spatially separated from one another. It is, however, also conceivable in principle, especially in the case of solid preparations, to position preparations differing from one another next to one another in a single container.
In this connection, it is advantageous to design the containers so that an exchange of flushing water between the containers is prevented.
A plurality of containers can be connected integrally to one another. This has the particular advantage that the containers can be integrally shaped, for example, using an injection molding method, and rendering subsequent fitting together of individual containers as superfluous. With this configuration of the containers, it is moreover advantageous to design the containers as half-shells connected to one another by a material bridge. The material bridge serves as a hinge about which the half-shells can be tilted and joined to yield one or more containers.
In another embodiment of the invention, the containers can be connected to one another via a non-water-conveying strut. It is possible in this fashion to design, in particular, dimensionally stable containers that make available sufficient mechanical protection for preparations stocked in them, wherein an elastic connection between the containers can be made by way of the struts so that when utilized, the toilet basket follows the contour of the toilet bowl.
For solid and gelled preparations, the container is designed so that flushing water can flow through it (i.e., it has at least one inlet opening for entry of flushing water and at least one outlet opening for exit of flushing water from the container charged with preparation).
In an advantageous embodiment, when the toilet basket is installed in the toilet, the inlet opening of the container(s) is located outside the flushing water stream. In other words, without use of a flushing water distributing element, no flushing water (or at least only a very small quantity) enters the container(s) through the inlet opening(s).
It is particularly preferred to shape the containers in a substantially ball-like fashion. A ball-like configuration has proven particularly advantageous for homogeneous impingement of flushing water on the containers. This appears to be due in particular to the fact that the ball-like surfaces of the containers reflect and direct the impacting flushing water particularly advantageously. It has been discovered that ball-like surfaces offer a comparatively low flow resistance so that when regions of a toilet basket embodied in this fashion is being impinged upon by a particularly large quantity of flushing water, it is diverted over the ball-like surface to adjacent ball-like containers. In addition, especially between adjacent containers of ball-like configuration, the flushing water is broken up and diverted in such a way that the incident flushing water is homogeneously distributed between the containers. This is discussed in more detail below.
It is also advantageous to design the inlet opening(s) in slit-shaped fashion parallel to the longitudinal axis of the toilet basket.
For liquid preparations in particular, a container preferably has only one outlet opening.
The flushing water distributing element aids in equalizing the flushing water stream emerging from the toilet (i.e., it directs the flushing water stream from the exit below the rim of a toilet bowl over the length of the toilet basket as homogeneously as possible into the inlet openings), in order to ensure the most uniform possible dissolution or rinsing of preparation(s) out of the toilet basket over its entire length.
Accordingly, the flushing water distributing element is configured so that when the toilet basket is hung in place, the element is impinged upon by flushing water upon flushing and an equalized delivery of flushing water into the inlet opening of the container or containers is produced.
In an advantageous embodiment, the flushing water distributing element is configured as a baffle plate that generates spray water upon the incidence of flushing water, resulting in equalized wetting or exposure of the containers or inlet openings.
In an embodiment of the toilet basket designed to receive solid or gelled preparations, the flushing water distributing element is arranged below the inlet opening(s) of the container or containers. The flushing water distributing element and the inlet openings are designed so that the surge of flushing water out of the toilet bowl from beneath the toilet rim is directed via the flushing water distributing element to the inlet openings of the containers of the toilet basket.
In a preferred embodiment in which the inlet openings are arranged in the containers above the flushing water distributing element, there is an edge between the inlet openings and the flushing water distributing element that limits direct inflow of flushing water from the flushing water distributing element into a container. The amount of flushing water directed into the containers can be adjusted by way of the spacing between the inlet openings and flushing water distributing element (i.e., the height of the edge). Flushing water that is directed via the flushing water distributing element to the inlet openings is broken up and reflected at the edge, acting similar to a weir. This also contributes to an equalized delivery of flushing water into the inlet openings.
In an alternative embodiment of the toilet basket designed to receive solid or gelled preparation, the flushing water distributing element is arranged above the inlet opening(s) of the container or containers. The flushing water distributing element and the inlet openings are arranged so that the surge of flushing water out of the toilet bowl from beneath the toilet rim is directed via the flushing water distributing element to the inlet openings of the containers of the toilet basket.
The flushing water distributing element is advantageously embodied in the manner of a plate, chute, ramp, or trough.
For better distribution or direction of flushing water over the length of the distributing element, the flushing water distributing element can have flutes extending in a longitudinal direction of the toilet bowl dispenser.
It can also be advantageous to configure the flushing water distributing element at least partly as a grid, in particular if the flushing water distributing element is arranged above the inlet openings of the container or containers. This produces a homogeneous dripping into the inlet openings or onto a preparation distributing element.
The flushing water distributing element can be provided in shared fashion for all containers, or separately for the containers. It is particularly advantageous to configure the flushing water distributing element integrally with the container or containers, thereby avoiding an additional production step of fitting.
According to a further preferred embodiment of the invention, the length of the distributing element corresponds substantially to the length of the toilet basket.
Solid preparations, also usually referred to as “toilet blocks”, are predominantly manufactured as pressed shaped elements, as extrudates, or by casting methods. It is also conceivable for such shaped elements to have at least partly a gelled or liquid phase. For example, the core of a toilet block can be made of a gel that is secured, for example, by adhesive bonding, in a cavity of the toilet block.
Toilet blocks today usually have a cylindrical or bar-like shape. It is, however, conceivable and desirable to make available shapes that differ from these traditional shapes, so that a more independent identity among consumers can be achieved for a corresponding product. For example, the solid preparations can be designed in ball-like fashion. The diameter of a preferred ball-shaped toilet block is from 1 mm to 10 cm, preferably 5 mm to 5 cm, particularly preferably 1 cm to 3 cm.
Preparations for a toilet basket according to the present invention usually contain substances such as cleaning substances, enzymes, perfume oils, dyes, surfactants or foaming agents. These can involve, for example, natural perfume oils, dyes, and surfactants. The preparation preferably has a surfactant content from 2 to 50 wt % and/or perfume oil content from 1 to 20 wt % and/or dye content from 0.5 to 20 wt %. In a particularly preferred embodiment, the preparation contains at least one enzyme at a concentration from 0.1 to 10 wt %.
It is particularly preferred that a toilet block have at least one first water-soluble basic element as well as at least one external water-soluble layer that at least partly covers the basic element. It is very particularly preferred if the outer layer has visual properties that differ from the basic element, such as color and/or gloss. It is thereby possible to make available to the user an indicator function that indicates, after a few flushing operations, how homogeneously water is flowing over and impinging upon the respective toilet blocks in the toilet basket, informing a user to position the toilet dispenser differently in the toilet bowl if needed.
The outer layer of the toilet block preferably has a thickness of from 10 to 1000 μm, particularly preferably 20 to 500 μm, very particularly preferably 50 to 150 μm. The layer preferably entirely surrounds the basic element.
Preferred toilet blocks have a basic element in the form of a granulate and/or an extrudate and/or a pellet and/or a prill and/or a melt-cast shaped element and/or a tablet.
The toilet basket according to the present invention has a holder for attaching the toilet basket to the rim of a toilet bowl.
Such holders usually are rod-shaped elements having two loops, so that due to the spring action of the loops, the holder for the toilet basket can be clamped onto the rim of the toilet.
In an advantageous refinement of the invention, the holder has at least one spring element that, when the toilet dispenser is installed in the toilet, it has a substantially vertical or horizontal spring travel. It is further preferred that the holder have at least two spring elements, so that when the toilet bowl dispenser is installed in the toilet, one spring element has a substantially vertical spring travel and one spring element has a substantially horizontal spring travel. The spring travel that is made available enables improved and more flexible securing of the toilet basket on toilets having different rim edge thicknesses and configurations. In particular, the spring element can be of rhombic configuration.
Further exemplifying embodiments of the invention are explained with reference to the appended drawings, in which:
1. Toilet basket
2. Holder
3. Container
4. Preparation
5. Inlet opening
6. Outlet opening
7. Container wall
8. Flushing water distributing element
9. Spring element
10. Spring element
11. Distributing element
12. Receptacle
13. Connection
14. Spacing element
A first embodiment of the invention is illustrated in
In the embodiment shown in
Flushing water distributing element 8 can also include an opening through which flushing water can flow into inlet opening 5 of container 3.
As may further be gathered from
As illustrated, the holder 2 includes a first spring element 9 and a second spring element 10. When the toilet dispenser 1 is installed in a toilet, the first spring element 9 has a substantially vertical spring travel and the second spring element 10 has a substantially horizontal spring travel, thereby enabling improved and more flexible securing of the toilet basket 1 onto toilets having different rim edge thicknesses and configurations.
Further embodiments of the flushing water distributing element 8 illustrated in
Another embodiment of the flushing water distributing element 8 is illustrated in
A ramp-like configuration of flushing water distributing element 8 is illustrated in
An alternative embodiment of a toilet basket according to the present invention for solid or gelled preparations having a flushing water distributing element arranged below the inlet opening is shown in
The plate-like flushing water distributing element 8, extending approximately at the height of the longitudinal axis, is arranged below the slit-shaped inlet openings 5a, 5b, 5c, 5d of containers 3a, 3b, 3c, 3d, and extends over the entire length of the toilet basket. This is also readily apparent from the front view illustrated in
The containers 3a, 3b, 3c, 3d and distributing element 8 are integrally shaped (i.e., containers 3a, 3b, 3c, 3d are formed, for example, using an injection molding method) from two half-shell-like elements connected by a hinge-like material bridge, wherein the flushing water distributing element 8 is shaped onto one of the half-shell-like elements. Containers 3a, 3b, 3c, 3d are then formed by folding the two half-shell-like elements together, the elements being secured to one another in the assembled state by a suitable positive and/or intermaterial connection.
The one-piece holder 2 by which the toilet basket 1 is secured onto the rim of a toilet bowl has two spring elements 9, 10 embodied in a rhombic shape. When the toilet dispenser 1 is installed in the toilet, the first spring element 9 has a substantially vertical spring travel and the second spring element 10 a substantially horizontal spring travel. The spring travel made available enables an improved and more flexible securing of the toilet basket 1 onto a variety of toilets differing in rim edge thicknesses and configurations.
The manner of operation of the ball-shaped containers 3a, 3b, 3c, 3d and flushing water distributing element 8 is further explained with reference to
When the toilet basket 1 is installed onto a toilet, should one of the ball-shaped containers 3a, 3b be located in a segment with high-volume and strong flushing water impingement, a greater proportion of spray water is then generated, which then distributes flushing water onto the abutting ball-shaped containers 3a, 3b where it flows off over the surfaces of the ball-shaped containers 3a, 3b or travels directly into the inlet openings 5a, 5b of the containers 3a, 3b. In regions with less flushing water impingement, less spray water is generated because of the ball-like container configuration, and a larger proportion of flushing water flows off over the container surface. This produces an equalized delivery of flushing water into the inlet openings 5a, 5b.
The flushing water distributing element 8, which when the toilet basket is installed, acts as a kind of baffle plate into the flushing water stream, resulting in a similar effect. In regions of high-volume and strong flushing water impingement, a greater proportion of spray water is generated than in regions of weak flushing water impingement, so that over the area of the flushing water distributing element, an equalized delivery of flushing water into the inlet openings 5a, 5b of the container 3a, 3b occurs.
Homogeneous rinsing out of the preparations can be implemented by way of the configuration of the ball-shaped containers 3a, 3b and the flushing water distributing element 8 (in particular, by the degree to which the ball-shaped containers 3a, 3b are entirely or partly located in the flushing water stream), the size and configuration of the inlet openings 5a, 5b of the containers 3a, 3b, and the size and location of the flushing water distributing element 8.
Preferably, the ball-shaped containers 3a, 3b are designed to receive ball-shaped preparations having a diameter from 25 to 40 mm. It is further preferred that the flushing water distributing element 8 have a depth of from 2 to 20 mm, particularly preferably from 5 to 15 mm, with “depth” referring to the horizontal extension when flushing water distributing element 8 is suspended in place in the direction of the toilet bowl impinged upon by flushing water. It is further advantageous to arrange the flushing water distributing element 8 in or above the horizontal section plane containing the center point of the ball-shaped containers 3a, 3b. Spacing between the lower edges of the flushing water inlet openings 5a, 5b and the flushing water distributing element 8 is, according to a preferred embodiment of the invention, from 2 mm to 8 mm. Horizontally extending slots are further to be preferred as flushing water inlet openings 5a, 5b, with the slots preferably having a height of from 1 to 6 mm, preferably 2 to 4 mm, and a width from 5 to 35 mm, preferably 20 to 25 mm.
The toilet basket 1 for receiving liquid preparations 4 includes a first container 3a and second container 3b for receiving at least one preparation 4. The containers 3a and 3b are arranged next to one another, each having an outlet opening (not illustrated) directed downwardly in the direction of gravity. Containers 3a, 3b can be coupled, individually or together, to the receptacle 12 of toilet basket 1, with the interior of the containers 3a, 3b being continuously in communication with a preparation distributing element 11 via the outlet opening, with interposition of an arrangement in receptacle 12 that prevents the preparation from flowing freely. This plate-like preparation distributing element 11 has, when the toilet basket 1 is in the installed state, an impingement region over which flushing liquid flows during the flushing operation.
For equalized delivery of flushing water onto preparation distributing element 11, there is provided above preparation distributing element 11 a flushing water distributing element 8 extending over the entire length of preparation distributing element 11. Flushing water distributing element 8 has a width that is less than the width of preparation distributing element 11, as seen in particular from
In this embodiment in particular, flushing water distributing element 8 can be embodied as a grid.
Spacing elements 14a, 14b can assume any desired configuration, and are not limited to the exemplifying embodiment shown.
Spacing elements 14a, 14b include embodiments whereby flushing water can flow through between the spacing elements 14a, 14b to the outlet opening 6 of the container 3, as indicated by the dashed line of the spacing elements 14a, 14b.
Number | Date | Country | Kind |
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102008037723.6 | Aug 2008 | DE | national |
Number | Date | Country | |
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Parent | 12987297 | Jan 2011 | US |
Child | 13457643 | US |
Number | Date | Country | |
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Parent | 15373658 | Dec 2016 | US |
Child | 16238924 | US | |
Parent | 13457643 | Apr 2012 | US |
Child | 15373658 | US |