WO2019063172A1

WO2019063172A1 - Wall-mounted dispenser

Info

Publication number: WO2019063172A1
Application number: PCT/EP2018/071375
Authority: WO
Inventors: Anja FERNANDEZ; Alexander RAUER; Christoph Geiberger
Original assignee: Ada Cosmetic Gmbh
Priority date: 2017-09-29
Filing date: 2018-08-07
Publication date: 2019-04-04
Also published as: DE102017122728A1

Abstract

The invention relates to a wall-mounted dispenser for provision and removal of a liquid, more particularly a detergent substance or a care product for personal hygiene, said dispenser comprising: a replaceable container (2) for the liquid; a wall bracket (1) for mounting the wall-mounted dispenser on a structural arrangement; and a removal device for dosed removal of liquid from the container (2) by means of a pumping movement. The container (2) is mounted on the wall bracket (1) so that it can move in relation to the wall bracket (1) in order to effect the pumping movement of the removal device.

Description

Wanddosierspender

description

The invention relates to a Wanddosierspender for providing and removing a liquid, in particular a detergent substance or a care product for personal care, according to the preamble of claim s. 1 Such a Wanddosierspender comprises a replaceable container for the liquid, a wall mount for attaching the Wanddosierspenders to a structural device, and a removal device for metered removal of liquid from the container by means of a pumping movement. The structural device to which the Wanddosierspender is attached is preferably a building wall, for example in the bathroom of a hotel or in public sanitary facilities, but it can also be a furniture part or a special holder or a frame. The container may be attached to and removed from the wall mount, and optionally form an interchangeable refill unit with the removal device or with parts thereof.

Wall dispensers having a replaceable container for storing and providing a liquid and a dispenser for withdrawing liquid from the container are used, for example, in public toilets or related rooms of restaurants to provide liquid soap. In particular, such dispensers but also used in hotels to provide at sink, in the bath or in a shower stall liquid soap, hair shampoo and other care products such as lotions or the like. Because wall dispensers are distinguished by the fact that the liquid products stored therein can be dosed and removed hygienically, while at the same time a certain volume of the liquid products can be held in order to increase the useful life until the dispenser is refilled or until necessary. prolonged replacement of the container for longer time intervals of typically several days.

Conventional Wanddosierspender are usually designed so that the container is inserted upside down in the wall bracket, ie with a downward-facing removal opening. The removal of the liquid then takes place by utilizing gravity; a user holds his hand under the sampling device, from which the liquid falls down. This requires that the sampling device must be provided with a valve that closes the container and is only opened to remove the liquid by the user. The opening of the valve can be done by means of an actuating mechanism, for example via an actuating lever. However, as liquids of relatively high viscosity are usually provided in a dosing dispenser of the present type, gravity is often insufficient to dispense the liquid in an acceptable time when opening a dispensing valve. It has therefore become more and more prevalent to provide the removal device with a removal valve which opens at a pressure on the container, which is at least partially compliant designed for this purpose. It is provided that the user, as described in DE 296 01 91 8 U 1, indirectly exerts pressure on the container, or acts directly on the container, as for example from DE 1 0 2009 024 769 B3 or DE 1 0 201 0 024 081 A1 is known.

However, the need to apply pressure to the dosing dispenser container to dispense a desired amount of liquid stored therein is not optimal in all situations. Because the user must always use a certain amount of force to be able to remove liquid. This sometimes complicates an exact dosage, so often much more fluid is removed than intended.

As an alternative to such known Wanddosierspendern whose container must be deformed to dispense liquid, it is known to use Wanddosierspender of the type mentioned, the removal devices be actuated with a pumping movement, which thus have a pump mechanism independent of the container itself. This is usually operated with a push button or a lever, as is known for example from DE 1 0 2005 01 0 084 B4.

The operation of a lever to effect a pumping movement of the sampling device is often not intuitive and often results in inexperienced users dispensing a fluid dose that the user does not catch with his hand so that it is lost. The operation of a push button or a button, with which a pumping movement of the removal device is effected, usually requires a punctual force that can often be hardly applied by the elderly or persons with disabilities.

The present invention is therefore an object of the invention to improve a Wanddosierspender of the type mentioned in terms of a simple and intuitive operation.

This object is achieved with a Wanddosierspender with the features of claim 1. Preferred embodiments and further developments of the wall dispenser according to the invention are laid down in the claims 2 to 21.

An inventive Wanddosierspender with an exchangeable container for the liquid and with a wall bracket for attaching the Wanddosierspenders to a structural device and with a removal device for the metered removal of liquid from the container by means of a pumping movement is therefore characterized by the fact that the container on the wall bracket is mounted so that it is movable relative to the wall bracket to effect the pumping movement of the extraction device.

A wall dosing dispenser according to the invention can thus be actuated by the user in such a way that he moves the container, preferably presses down, in particular if the container is pushed upside down as usual on the wall holder. is brought and the liquid issues down. In contrast to previously known solutions for Wanddosierspender with pumping mechanics so the user is not a part of the removal device by means of a lever mechanism or a linkage moves against the container, but the container itself is set in motion to effect the pumping movement.

A great advantage of this solution according to the invention results, for example, when the container, as is usually the case, mounted upside down on the wall bracket and the liquid is removed falling down. Because when the container for the pumping movement is moved, the discharge opening for the liquid can remain stationary during the pumping movement. This allows constructive simplifications and thus corresponding cost savings in the production of Wanddosierspenders.

Since the pumping movement of the Entnah mevorrichtung is effected according to the invention by moving the container, the user can operate the dispenser at a location that is relatively far away from the dispensing opening for the liquid; This results in a true two-handed operation, which is particularly easy for older people and is intuitive. With the arrangement according to the invention, it is particularly easy to keep the force required for moving the container independently of the filling level constant, which in turn brings a simplified operation, which is advantageous in particular for older persons.

Particularly intuitive is an axial pumping movement, ie a pumping movement to the extraction point. This can be achieved in the context of the present invention, in particular by the fact that the container is movable in a substantially vertical direction relative to the wall bracket to effect the pumping movement of the extraction device; because usually the sampling point will be either up or down.

As is conventional, it is also preferred in the context of the present invention, when the liquid is removed from the Wanddosierspender down can be moved so that the container is to move down when liquid is to be dosed. In order to terminate a pumping cycle, the container is then moved up again, preferably automatically, so that the user only has to push the container downwards. This is also particularly advantageous because metering dispensers of the present type, as already mentioned, are usually filled with liquids which have a high viscosity. For the pumping movement to dispense liquid metered, thus, a corresponding force must be spent; Naturally, this is particularly easy for a user if he can apply this force to the container from above.

In the context of the present invention, it is particularly preferable for the container to be movable relative to and along the wall mount by means of a guide rail provided on the container and / or on the wall mount in order to effect the pumping movement of the removal device. Such a guide rail simplifies the way attaching and separating the container to and from the wall bracket, because it must be used for this purpose only a counterpart in the guide rail, one of the two elements is attached to the container and the other to the wall bracket. By the guide rail inevitably results in a correct position arrangement of container and wall bracket when attaching or inserting the container. At the same time, a guide rail can be provided with a lockable movement limit, which facilitates an anti-theft device.

Particularly simple and effective, the wall dispenser according to the invention can be constructed when the wall bracket has a projection for supporting the container, wherein the container is movable against the projection to cause the pumping movement of the sampling device. The projection of the wall mount then forms a stationary part of the removal device in the pumping movement, while the container moves during the pumping movement relative to the wall bracket and thus also relative to the projection. As far as the removal of the liquid to take down, the projection of the wall position forms a support for placing or inserting the container, said Preferably, the pumping mechanism of the removal device is arranged between the container and the projection, so that the container is usually not directly, but indirectly supported by the pumping mechanism on the projection. The projection may be provided with a passage opening for discharging liquid from the extraction device downward. It can be molded onto the wall bracket or attached to it as a separate part.

If the wall bracket has a projection for (directly or indirectly) supporting the container and the container is movable against the projection to effect the pumping movement of the removal device, it is preferred in the context of the present invention if the removal device has a pumping device between on the one hand the projection of the wall bracket and on the other hand the container is arranged, namely at a head portion of the container, which is characterized in that it has a removal opening with removal valve. The pumping movement of the sampling device can then be effected so that the head region of the container is moved relative to the projection and thereby directly actuates the pumping device.

The pumping device may be a telescoping chamber or a sleeve with an internally displaceable piston, but particularly preferably it is equipped with a metering bellows which is compressible and / or expandable by means of the pumping movement, in particular of an elastomeric material such as silicone or also PP, TP E or PE and has a filling opening and a discharge opening. With its filling opening of the dosing bellows is attached to the removal opening of the container, or inserted into this and with its discharge opening of Dosierbalg is attached to the projection of the wall bracket or - as far as this contains a passage - inserted into this.

Depending on the materials chosen for the extraction valve and the dosing bellows, these two functional elements can also be manufactured in one piece, ie. on For example, made of silicone dosing bellows can include as an integral part of the removal valve of the container.

H it is expedient if the metering bellows is provided at its discharge opening with a dispensing valve or cooperates with such, when the dispensing valve forms part of the projection or is formed as a separate part. The Dosierbalg is then closed so on the one hand by the head portion of the container and on the other hand by the discharge valve. Here the removal opening of the container comes to rest within the filling opening of the dosing bellows and the withdrawal valve ensures that the dosing bellows is filled with liquid via the removal opening during expansion, but this can no longer flow back into the container when compressing the dosing bellows. The discharge valve, which is known per se, for example from DE 1 0 2009 024 769 B3, in particular with a valve disk or as a diaphragm valve, conversely ensures that, when the metering bellows is compressed, liquid is dispensed from the discharge opening through the discharge valve, however, liquid is prevented from leaking when the metering bladder remains stationary and also prevents air from being drawn into the metering bladder through the dispensing valve and dispensing opening as the metering bladder expands.

Since a normal user will only move the container when liquid is to be dispensed, if the dispensing bellows is not already equipped with a sufficiently strong elastic restoring force, it is particularly preferred if the dispensing device also has a spring element, besides the dispensing bellows in particular as a helical spring, preferably made of metal. This spring element ensures that the dosing bellows is expanded again after a compression in which it dispenses liquid and in this case it is loaded again with liquid which is removed from the container through the removal opening. It is particularly preferred in the context of the invention, when the spring element between the projection of the wall bracket and the head portion of the container is arranged so that it extends outside the Dosierbalgs, for example, surrounds it. So receives the im Dosing bellows pumped liquid no contact with the spring element, so that any contamination of the liquid and any chemical reaction between the spring element and the liquid is excluded.

In addition, because there is no contact between the spring element and the liquid, certain criteria for the environmental impact assessment, such as an Ecolabel certification, can be met particularly easily, without having to use special material pairings for this purpose.

The same advantages can be achieved in the context of the present invention, when the spring element is placed at any other location where it is supported directly or indirectly on the one hand on the container and on the other hand on the wall bracket. It is only important that the container with the help of the restoring force of the spring element, or even exclusively due to this restoring force, performs a return stroke after a pumping movement. It is therefore also particularly preferred if the spring element is arranged in a recess of the wall mount, for example in the preferably existing guide rail and there acts on a driver or a guide element of the container. Thus, the spring element is in fact part of the wall bracket and does not need to be replaced with the container. It can be manufactured inexpensively, because it is possibly supported by the guide rail and therefore only has to meet low requirements for intrinsic stability. In addition, the spring element is then arranged relatively protected and can not be damaged even with a rough replacement of the container. In addition, any contact with liquid dispensed is excluded, which can have a positive effect on the life of the spring element.

A dosing bellows also has the advantage that it reliably delivers a consistent dose of fluid, which does not increase even when the user applies more force for the pumping motion or keeps the container pressed longer. From the point of view of economic as well as ecologically advantageous use of held by Wanddosierspender liquid this is a not negligible advantage.

In order to optimize this inherent advantage of a metering bellows, it is preferred to provide an adjustable stop for limiting the movement stroke of the metering bellows on the container, on the projection or between the projection and the container. This stop can be performed, for example, as a stage backdrop that limits the path of movement of the container and thus the movement stroke of the Dosierbalgs, depending on the set level, different degrees, whereby the output quantity per pumping movement changes accordingly. The dose of liquid dispensed by the wall dispenser according to the invention can thus be adapted to specific local requirements, to different liquids or to different user behavior in order to set the optimal dose for the respective intended use in a resource-saving and cost-saving manner at all times.

The wall dispenser according to the invention may be provided with an anti-theft device to prevent the container being unauthorized or inadvertently separated from the wall bracket. Particularly advantageous, such an anti-theft device can be realized when the Wanddosierspender is provided with a guide rail on the container and / or on the wall bracket, along which the respective other component is movably held. Because in this case, the anti-theft device can be essentially realized with a pawl that limits the path of movement of the container along the guide rail and by a separate key element that can be inserted, for example, between the wall bracket and the container to push back the latch and the locked Release movement path, can be unlocked. The pawl in this case preferably consists of an elastic material, which is in particular identical to the material used for the guide rails, preferably a plastic. It may be integrally formed on the wall mount or be present as a separate element and then plugged or glued to the wall mount or latched to this. It may be provided that the key element is not specific Key element, but also a common tool, such as a screwdriver can be.

In the context of the present invention, it offers particular advantages if the container of the wall-dose dispenser according to the invention is provided with a ventilation opening in a base area, which is opposite the head area with the removal opening. Just when the container is inserted upside down in the wall mount or attached to this, in order to spend the liquid stored therein down, there is the problem to compensate the output volume of liquid by inflowing air, so that no U nterdruck forms in the container, which the further removal of liquid difficult.

In order to ensure a backflow of ambient air into the container during or after the removal of liquid, without having to complicate the removal device with corresponding return flow channels and valves, or without having to alternatively form the container so that it reduces its volume with decreasing liquid content - what For example, by a non-dimensionally stable bag or by a designed as a piston, moving from the bottom area to the head of the container container bottom could be achieved - is therefore proposed as a preferred embodiment of the present invention to provide a ventilation opening in the bottom area, can flow through the ambient air.

Such a ventilation opening may in turn be provided with a valve to prevent leakage of the liquid during transport of the container. However, it is preferred in the context of the present invention, when the ventilation opening is initially closed with a transport lock and only then opens or intended opening only when the container is attached to the wall bracket. Because then lies the ventilation opening of the removal opening, and since the liquid is removed according to the invention by means of a pumping movement, and not by deforming the container, a valve at the ventilation opening is unnecessary. This leaves rather unrestricted flow of ambient air when liquid is removed from the removal opening of the container by the container is moved, preferably downwards. Since the pumping mechanism of the sampling device is arranged on the head region of the container, there is no risk that liquid will escape from the ventilation opening.

Particularly preferred in this case is the variant that the transport lock, which initially closes the ventilation opening of the container, automatically opens when attaching the container to the wall bracket. This excludes that the opening of the ventilation opening when inserting the container is about forgotten. This automatic opening can be realized so that the transport lock has a predetermined breaking point, which is designed so that it breaks when attaching the container to the wall bracket and releases the ventilation opening. H here are appropriate to provide appropriate elements on the wall bracket, such as projections or a slotted guide along which the container must be inserted into the wall bracket and, for example, a rotational movement of the container or parts of the same conditions, breaks through the transport lock at the predetermined breaking point. Alternatively, the transport lock can also be designed pierceable, for example as a membrane or as a thin point of the container wall. Preferably, it is also provided that the transport lock for or upon insertion of the container in the wall bracket is forcibly pierced or must be.

In this case, it is particularly preferred if at least part of the transport lock is formed on a float disposed inside the container, which is connected to the bottom region of the container via the transport lock and which floats on the liquid after the transport lock has broken. If the container is formed at least partially transparent or translucent, this float can be in particular to d to make the current liquid level visible from the outside. In addition, the float can be designed to ensure that even a liquid with a higher viscosity is removed evenly from the container is stripped by the liquid from the inner surface of the container wall and prevents a funneling of the liquid surface.

When a part of the transport safety device to be broken off from the ventilation opening is formed on such a float, in addition to the advantage that no small fragments of the transport lock get into the interior of the container and approximately into its removal opening. There is then only one "fragment", and this is the float, which floats reliably on the liquid and can cause no problems there.

In particular, when the container is not transparent, but translucent or even has only a translucent strip between its bottom portion and its head portion and / or when a colorless liquid is stored therein, it may be difficult to detect the liquid level from the outside. In the sanitary rooms of the catering trade, however, it must be prevented just as reliably as in the bathroom area of hotel rooms that the wall dispenser becomes empty. If you do not want to replace the container at fixed intervals, in which there is usually much residual liquid in the container, the reading of the current level of the container is essential. The preferred existing float therefore offers other special advantages.

In order to provide a pleasing appearance of the wall dispenser according to the invention, this can finally be provided with a cover which is placed on the wall mount or connected to this, the container and the removal device covers and is movable together with the container relative to the wall mount. Therefore, to effect the pumping action to dispense liquid, the user then attacks the cover and preferably presses it down the wall mount to dispense liquid, again preferably downwardly. In order to be able to easily identify the liquid level in the container from the outside, at least when the container threatens to become empty, the cover can be provided, for example, with a discreet viewing window in the head region of the container in which the container is preferred existing float can be detected when the liquid level has dropped to this window.

In order to allow the replacement of the container despite the cover, without having to replace the cover with the same, it is preferable to connect the cover at least one hinge with the wall bracket in order to swing it up for replacing the container can. When the container and the wall bracket are relatively movable by means of a guide rail, the hinge for the cover is preferably formed so that its hinge axis is movable along the guide rail; because to perform the pumping movement, the cover must be movable together with the container, as the cover covers the container functionally and prevents direct access to the container.

With the present invention, therefore, a Wanddosierspender is proposed in which the output of a liquid dose can be effected by a user particularly simple and intuitive and with very little effort. This effort remains constant regardless of the liquid level in the container. The dosage per dosage remains constant and can preferably be adjusted on site, which optimizes local costs. The use of the Wanddosierspenders is intuitive by a preferred axial pumping movement and effect by means of a simple two-handed use.

With the preferred existing float also results in a particularly easy readability of the level, thereby saving costs that a precautionary too early replacement of the container is eliminated. At the same time, the float ensures that the tank can be emptied completely, and it also prevents the tank from being refilled, which is essential in terms of quality assurance as well as a guarantee of ecologically sound products.

According to a further preferred embodiment, the wall dispenser according to the invention can only be optionally provided with a cover, wherein the other elements of the Wanddosierspenders remain identical. This results in a modular system with a basic version without cover and a premium version with cover.

Exemplary embodiments of a wall dispenser designed in accordance with the invention will be described and explained in more detail below with reference to the accompanying drawings. Show it :

Figure 1 is a schematic exploded view of an inventive

designed wall dispenser;

Figure 2 is a view of a replaceable refill unit in the transport state, with a detailed view of the transport lock;

Figure 3 is a view like Figure 2, but after removal of the transport lock;

Figure 4 is a representation as Figure 1, but of another embodiment.

The wall dispenser shown in Figure 1 consists essentially of a wall bracket 1 with a guide rail 1 8, a container 2 and a removal device for metered removal of liquid from the container 2. This liquid may be a commercial, clear liquid soap, a hair care product or a Body care lotion, while in the present case the container 2 is a plastic container made of injection-molded polypropylene in a cylindrical shape. A plastic container of the present form can also be blow-molded or injection-blown, the cylindrical shape then being obtained by separating a bottom part.

The removal device for metered removal of liquid consists of a removal opening 33 in the container 2, which is closed with a removal valve 1 0, a Dosierbalg 9 made of an elastomeric material with a Fill opening 34 and a discharge opening 35, a discharge valve 1 1, a spring element 12 and a projection 1 9 of the wall bracket 1 with a valve seat 30 for the discharge valve 1 1 and a passage opening 31 for dispensing the liquid downwards, wherein between the projection 1 9 and a head region 32 of the container 2, in which the removal opening 33 is located, a Dosiermengenbegrenzer 29 is arranged. Parts of the removal device are thus formed by the container 2 and the wall bracket 1.

Accordingly, the refill unit shown in Figures 2 and 3 consists of the container 2 and parts of the removal device, namely the removal opening 33 in the head portion 32 of the container 2, the removal valve 1 0, the Dosierbalg 9 and the dispensing valve 1 1, said parts of the Removal device are covered with an integrally formed on the container 2 skirt 1 3.

As a part of the container 2 are in Figure 1 also also a closure cover 7 with vent 1 5 and annular bead 37, an activation cap 8 with a guide nose 1 7 and a float 6 with support wings 1 6 and transport lock 14 in a bottom portion 36 of the head portion 32nd the container 2 with the removal opening 33 opposite to recognize.

Further, shown in Figure 1, optional parts of the present embodiment of a Wanddosierspenders invention are a cover 4 with a viewing port 27, an adapter plate 3 for the cover 4, comprising pivot pin 22, locking elements 23 with spring tongues 25, articulated arms 24 and retaining elements 26. Furthermore are an anti-theft device 21, which is presently designed as a locking spring, and a key element 28 unlocking this and a guide groove 20 provided for this purpose in the wall bracket 1 recognizable.

The wall mount 1 can be fastened directly to a structural device (not shown), or, if the cover 4 is desired, indirectly. right over the adapter plate 3 to be inserted between the wall bracket 1 and the structural device; this can also be retrofitted accordingly.

To the wall bracket 1, the projection 1 9 is formed, on which the refill unit (Figures 2 and 3) is placed. Here, the guide lug 1 7 in the bottom portion 36 of the container 2 and a guide member 38 (Figure 2) in the head portion 32 of the container 2 in the guide rail 1 8 of the wall bracket 1 a. I in the upper region of the guide rail 1 8, which serves to receive the guide lug 1 7, the guide rail 1 8 intersections with H provided to prevent tilting of the bottom portion 36 of the container 2. In a corresponding manner, the projection 1 9 on the guide rail 1 8 H interschnitte, in the retaining surfaces 40 (Figure 2) of the container 2, which continues here in the skirt 1 3, engage and the container 2 so far along the guide rail 1 eighth Keep moving up and down on the wall bracket 1.

The arranged between the support surfaces 40 guide member 38 (Figure 2) is provided with a pawl 41, the insertion of the container 2 and its guide nose 1 7 and the retaining surfaces 40 in the guide rail 1 8 inserted into the guide rail 1 8, as a locking spring designed anti-theft device 21 when sliding along deformed, after which the locking spring snaps back again and pulling out the container 2 from the H intersections of the guide rail 1 8 and the projection 1 9 prevents upward.

When placing the container 2 or the refill unit on the projection 1 9 of the wall bracket 1, the dispensing valve 1 1 comes to rest on the valve seat 30 of the projection 1 9, so that the opening of the dispensing valve 1 1 is above the passage opening 31 and liquid, which is discharged from the discharge valve 1 1, is discharged through the passage opening 31 of the projection 1 9 down. Also, the spring element 12, which in the present case consists of a metallic helical spring, is supported on the projection 1 9, but indirectly via the Dosiermengenbegrenzer 29 arranged therebetween. The spring element 12 surrounds the Dosierbalg 9, the Ausgaböff- 35 is closed by output valve 1 1, outside. The filling opening 34 of the Dosierbalgs 9 is provided with a collar 41, with which the Dosierbalg 9 liquid-tight to a top plate 42 in the container 2 (Figure 2) recognized and preferably cohesively attached thereto. The head plate 42, in which the removal opening 33 is located, thus covers the filling opening 34 of the Dosierbalgs 9, and the volume of the Dosierbalgs 9 is connected via the removal opening 33 with the inner of the container 2 I. The removal opening 33 is closed with the removal valve 1 0, which is designed as a shield valve check valve closed. The sampling valve 1 0 could also be designed as a slit valve, Phillips valve, Duckbill valve, flap valve or in any other form.

If now the container 2 along the guide rail 1 8 relative to the wall bracket 1 down pressed against the not moving along projection 1 9, the Dosierbalg 9 and the spring element 12 are compressed. The content of the metering bellows 9 can not flow back into the container 2 through the removal opening 33 because of the removal valve 10, so that the discharge valve 11 is formed, as known per se from DE 1 0 2009 024 769 B3, because of the pressure is, opens and the content I of the Dosierbalgs 9 through the passage opening 31 in the projection 1 9 therethrough downward. Also, the dispensing valve 1 1 may alternatively be formed in any other suitable form.

If the container 2 is released, this is due to the elastic restoring force of the spring element 12 again along the guide rail 1 8 moves upward, whereby the Dosierbalg 9 is expanded. The discharge valve 1 1 prevents in this case that ambient air is drawn into the metering bellows 9 during expansion, so that the removal valve 10 opens and liquid flows from the container 2 and / or is drawn into the metering bellows 9. Thus, a pumping cycle is completed, for example, outputs a constant dose of 6 ml, which corresponds to the maximum I content of the Dosierbalgs 9. In order to change this dose, the Dosiermengenbegrenzer 29 is rotatably placed on the projection 1 9, so that a stop 5, the present three stages provides, can be brought into a position corresponding to a counter-stop 39 (Figure 2) on the container 2, depending on which stage of the stop 5, the counter-stop 39 abuts when the container 2 is pressed down, the movement stroke of the metering bellows 9 is limited in such a way that the dose flowing into the metering bellows 9 and emitted by it in the subsequent pumping cycle is smaller than its maximum volume; In the present case, the stages of the stop 5 are designed so that it is possible to choose between an output quantity of 2 ml, 4 ml and 6 ml.

The spring element 12 is thus arranged outside of the metering bellows 9 and comes in no case in contact with the liquid. Rather, it merely receives contact with the inner wall of the container 2, the withdrawal valve 10, the inner wall of the metering bellows 9 and the delivery valve 11. As a further advantage results from this arrangement of the spring element 12, that it can be easily replaced if, for example, its elastic restoring force should subside, or if a stronger or weaker spring force is desired. The spring element 12 may be fastened together with the Dosierbalg 9 on the container 2 and thus be part of the refill unit; it can - as in the present case - but also cost-damping remain on the wall bracket 1 when the container 2 is replaced.

Due to the spring element 12, which may be made of spring steel, since it receives no contact with the dispensed liquid, the Dosierbalg 9 can be made of a low-cost elastomer, such as silicone, because of its elasticity and in particular the resulting elastic restoring force no special requirements. This further reduces the production costs of the refill unit.

The cover 4, which is provided with the viewing opening 27 to be able to recognize from the outside, when the liquid level in the container 2 has decreased so far that it should be replaced, is held in the articulated arms 24 by means of two (not visible) pins, which in turn on the Pivot pin 22 of the adapter plate 3 sit. The cover 4 hereby has the possibility of moving up and down along the articulated arms 24, in their longitudinal grooves, so that they can join in the pumping movement of the container 2. The cover 4 rests with a flattened top 43 on the activation cap 8 of the container 2, so that a pressure of a user on the top 43 of the cover 4 causes a movement of the cover 4 and the container 2 along the guide rail 1 8 down, which triggers the pumping movement to dispense liquid. The holding elements 26 of the adapter plate 3 are thereby engaged behind by (again invisible) counterparts in the upper part of the cover 4, so that the cover 4 is forcibly guided on the adapter plate 3 and can perform only necessary for the pumping movement vertical movement up and down ,

To be able to exchange the container 2, the cover 4 is lifted so far that the holding elements 26 are no longer engaged behind, after which the cover 4 can be pivoted about the pivot pin 22 via the articulated arms 24 forward and downward. Again, an anti-theft device is provided, which is formed by the locking elements 23; These prevent the cover 4 can be raised so far that it gets out of engagement with the support members 26.

The key element 28, which is naturally a separately entrained part, can be inserted into the guide grooves 20 as needed, thereby urging on one hand the locking spring of the anti-theft device 21 to the rear and the pawl 41 of the container 2 to the front, around these two elements to take out of engagement and to allow a movement of the container 2 upwards; On the other hand, the key element 28 presses by means of the spring tongues 25 of the Verriegelu ngselemente 23 this in a position which also allows the lifting of the cover 4 to take them out of engagement with the support members 26 of the adapter plate 3.

The bottom portion of the container 2 is closed with the closure lid 7. This sits with its annular bead 37 on the annular edge of the otherwise Cylindrically shaped container 2, which ensures a particularly easy operability of the container 2 with subsequent closure of the same. The vent 1 5 ensures that air can flow into the container 2 when liquid is discharged down through the discharge opening 33. Accordingly, the activation cap 8 is not airtight connected to the closure lid 7; Alternatively, the wall of the closure lid 7 may have an air passage.

In the state of manufacture after filling the container 2 and before inserting it into the wall mount 1, the float 6 is integrally formed on its sealing cover 7 via its transport lock 1 4 or materially connected to it, so that the closure lid 7 and the float 6 in one piece be used in the bottom portion 36 of the container 2. The support wings 1 6, which are integrally formed on the float 6, bend upwards here (FIG. 2, detailed representation) and thereby ensure that the float 6 comes into contact with the inner wall of the container 2 in a circumferentially distributed manner.

When inserting the container 2 or the refill unit shown in Figures 2 and 3 in the wall bracket 1, the transport lock 14 is broken off at a predetermined breaking point, and the float 6 falls into the container 2, wherein he the vent 1 5 in the cap 7 free gives. This process is shown in Figures 2 and 3, wherein the figure 2 shows the situation during the transport of the container 2 and the refill unit, while in Figure 3, the installation situation is shown, in which the container 2 at the (here for reasons of Ü bersichtlichkeit omitted) wall bracket 1 is held.

As Figure 2 illustrates, the closure lid 7 is placed on the bottom portion 36 of the container 2 to close it. The activation cap 8 sits on top of the closure lid 7 and forms with a curved surface a particularly pleasant surface for actuating the Wanddosierspenders, which is actuated according to the invention by depressing the container 2. On its underside, the activation cap 8 has a cylindrical threaded pin 44, which is screwed into a internal thread 45 at the ventilation opening 15. Thus, the activation cap 8 and the cap 7 are securely connected to each other. A centric activation pin 46 rests on the transport lock 14 and is thinner than the diameter of the ventilation opening 1 5, which is closed by the transport lock 14. At Ü transition from the cap 7 to the transport lock 14 is a predetermined breaking point.

If now the container 2 or the refill unit shown in Figures 2 and 3 are attached to the wall bracket 1, the guide lug 1 7, which is integrally formed on the activation cap 8, and the guide member 38 must be aligned to the container in to be able to insert the guide rail 1 8. For this purpose, the activation cap 8 must be rotated by 90 ° about the vertical axis of the container 2, which leads to the situation shown in Figure 3.

As a result of this rotation of the activation cap 8, due to the engagement of the threaded pin 44 in the inner thread 45, it moves downwards to some extent. This movement is sufficient so that the activation pin 46 breaks off the transport lock 14 at the predetermined breaking point. The float 6 thus separates from the closure lid 7 and falls, as shown in the detail view in Figure 3, down into the container 2 into it. The ventilation opening 1 5 is thereby released.

The float 6 is here designed as a round disc, which essentially corresponds to the inner contour of the cylindrically shaped container 2, so that it can move up and down in the container 2. The support wings 1 6 ensure here that the float 6 does not tilt within the container 2, but always remains in a horizontal position. Depending on the intended gap dimensions can be dispensed with the support wings 1 6. The float 6 has a lower density than the liquid contained in the container 2, so that it floats on this liquid, without dipping into the liquid. If the liquid level drops by removing liquid down, the float 6 decreases with. I m difference to the liquid level is the Float 6 easily visible from the outside through the translucent held wall of the container 2, in particular through the viewing opening 27 in the cover 4 therethrough. Hereby, service personnel can easily recognize at any time whether the container 2 or the refill unit has to be exchanged.

Since the outer contour of the float 6 corresponds approximately to the clear inside diameter of the container 2, it is at the same time able to prevent the formation of a liquid in the container 2, when, for example, a liquid is stored in the container 2, which flows with difficulty. because it has a relatively high viscosity or a high adhesion to the container wall. The float 6 equalizes the liquid level and optionally strips liquid from the wall of the container 2. In this way, it allows complete emptying of the container 2, especially when the liquid level is in the head portion 32 of the container 2.

When the container 2 is almost completely emptied, and the float 6 has arrived accordingly in the vicinity of the bottom plate 42 of the container 2, he sucks himself to an annular shoulder 47, which is provided at the transition of the wall of the container 2 to the bottom plate 42. In cooperation with the removal valve 10, it is then no longer possible with reasonable effort to remove the float 6 from the bottom plate 42 or from the annular shoulder 47, which prevents unqualified refilling of the container 2 from above. This is a great advantage for product safety and quality assurance. The float 6, which can not be forgotten due to a one-piece design with the closure lid 7 during assembly of the refill unit, thus combines several important functions; because he acts when transporting the refill unit as a transport lock when using the Wanddosierspenders as a level indicator and as a residual emptying help, and he finally ensures after emptying the container that this can not be refilled unauthorized.

Figure 4 shows a schematic exploded view of an embodiment of an inventively designed Wanddosierspender, a Variant of the embodiment shown in Figure 1 and largely coincides with this. Reference is therefore made to the preceding description for the matching features.

The Wanddosierspender shown in Figure 4 differs from that Wanddosierspender shown in Figure 1, by the arrangement and construction of the spring element 12. This surrounds here no longer, as in the embodiment of Figure 1, the Dosierbalg 9, and it is not between the head portion 32 of the container 2 and the projection 1 9 of the Wandhal- sion 1 arranged. There is only the Dosierbalg 9 with its dispensing valve 1 1.

The Dosierbalg 9 is also attached to the Wanddosierspender, which is shown in Figure 1, usually together with its dispensing valve 1 1 fixed to the container 2 and thus part of the replaceable refill unit. However, because the spring element 12 is preferably a metallic coil spring, it is not very advantageous for cost reasons to provide it as part of the replaceable refill unit as well. However, if the spring element 12 is not attached firmly to the container 2, it remains on removal of the replaceable refill unit on the projection 1 9 or on the Dosiermengenbegrenzer 29. This implies that the Dosierbalg 9 introduced at the onset of replaceable refill unit in the spring element 12 which requires a degree of care and thus can be problematic.

In the wall dispenser shown in FIG. 4, the spring element 12 designed as a metallic helical spring is now located more on the wall holder 1 and is inserted into the guide rail 18. I n the guide rail 1 8 it is arranged protected from dirt and damage. In addition, it is there supported laterally by the guide rail 1 8, so that it has to meet only low requirements for intrinsic stability and thus can be manufactured more cost-effectively. A projection within the guide rail 1 8, on which the spring element 12 is, forms the Bearing for the spring element 12, where it is supported against the wall bracket 1. When the container 2 or the replaceable refill unit is inserted into the guide rail 1 8, the guide nose engages 1 7 in the bottom portion 36 of the container 2 in the guide rail 1 8 and meets there on the upper end of the spring element 12, whereby the spring element 12th As a result, on the projection 1 7 against the container 2 and the replaceable refill unit is supported.

The spring force of the spring element 12 thus acts in this embodiment between a projection within the guide rail 1 8 of the wall bracket 1 and the guide lug 1 7 on the activation cap 8 in the bottom portion 36 of the container 2, as a result, the container 2 only against the elastic spring force of the spring element 12 can be moved relative to the wall bracket 1. The spring element 12 is compressed as in the embodiment of Figure 1 during depression of the container 2 along the guide rail 1 8. At the same time the Dosierbalg 8 is compressed. By compressing the Dosierbalgs 9 liquid is discharged down through the passage opening 31 in the projection 1 9, and due to the elastic restoring force of the spring member 12, the container 2 when it is released, again moved along the guide rail 1 8 upwards, whereby the Dosierbalg 9 is expanded and refills with a new dose of liquid to be dispensed.

Claims

claims

1 . Wanddosierspender for providing and removing a liquid, in particular a washing-active substance or a care product for personal care, with an exchange ble container (2) for the liquid and with a wall bracket (1) for attaching the Wanddosierspenders to a structural device, as well as with a removal device for metered removal of liquid from the container (2) by means of a pumping movement,

characterized,

in that the container (2) is attached to the wall mount (1) in such a way that it is movable relative to the wall mount (1) to effect the pumping movement of the unloading device.

2. Wanddosierspender according to claim 1, wherein the container (2) in a substantially vertical direction relative to the wall bracket (1) is movable to cause the pumping movement of the removal device.

3. Wanddosierspender according to claim 2, wherein the container (2) to m metered removal of liquid from the container (2) is movable downwards.

4. Wanddosierspender according to at least one of claims 1 to 3, wherein the container (2) by means of a container (2) and / or on the wall bracket (1) provided guide rail (18) relative to and along the wall bracket (1) is movable to effect the pumping movement of the sampling device.

5. Wanddosierspender according to at least one of claims 1 to 4, wherein the wall mount (1) has a projection (19) for supporting the container (2), and wherein the container (2) against the projection (19) Be wegbar is to effect the pumping movement of the sampling device.

6. Wanddosierspender according to claims 3 and 5, wherein the projection (1 9) of the wall bracket (1) with a passage opening (31) is provided to issue liquid from the removal device down.

7. Wanddosierspender according to any one of claims 5 or 6, wherein the removal device comprises a pumping device which is arranged between on the one hand the projection (19) of the wall bracket (1) and on the other hand a head portion (32) of the container (2), in which the container (2) a removal opening (33), wherein the pumping device by a relative movement between the head portion (32) of the container (2) and the projection (19) is actuated, and wherein a removal valve (1 0) for the removal opening (33) is provided, which sits in the removal opening (33) and / or is part of the pumping device.

8. Wanddosierspender according to claim 7, wherein the pumping device comprises a compressible by means of the pumping movement and / or expandable, in particular consisting of elastomeric material Dosierbalg (9) having a filling opening (34) and a discharge opening (35), wherein the Dosierbalg (9) its filling opening (34) to the removal opening (33) of the container (2) and with its discharge opening (35) to the projection (1 9) of the wall mount (1) is attached or used.

9. Wanddosierspender according to claim 8, wherein the Dosierbalg (9) at its output opening (35) with a dispensing valve (1 1) is provided or cooperates with such.

1 0. Wanddosierspender according to at least one of claims 7 to 9, wherein the pumping device also cooperates with a arranged outside the pumping device spring element (12), which in particular as a helical spring, preferably made of metal, is formed.

1 1. Wall dispenser according to claim 1 0, wherein the spring element (12) outside the Dosierbalgs (9), between the projection (19) of the Wandhal- sion (1) and the head portion (32) of the container (2) is arranged.

12. Wanddosierspender according to at least one of claims 7 to 1 1, wherein the container (2) on the projection (19) or between the projection (1 9) and the container (2) an adjustable stop (5) for limiting the movement of the stroke Dosierbalgs (9) is provided.

1 3. Wanddosierspender according to at least one of claims 4 to 12, wherein the guide rail (18) with an anti-theft device (21) against a separation of the container (2) from the wall bracket (1) is equipped.

14. Wanddosierspender according to claim 1 3, wherein the anti-theft device (21) consists essentially of at least one, by means of a separate key element (28) unlockable pawl (41) which limits the path of movement of the container (2) along the guide rail (18).

1 5. Wanddosierspender according to at least one of claims 1 to 14, wherein the container (2) in a bottom region (36) which is opposite to the head portion (32) provided with a ventilation opening (15).

1 6. Wanddosierspender according to claim 1 5, wherein the ventilation opening (15) of the container (2) with a mounting of the container (2) on the wall bracket (1) reveal and / or self-opening transport lock (14) is closed.

1 7. Wanddosierspender according to claim 1 6, wherein the transport lock (14) is pierceable or has a predetermined breaking point, which is designed so that it breaks when attaching the container (2) to the wall bracket and the vent opening (15) releases.

1 8. Wanddosierspender according to claim 1 7, wherein at least a part of the transport lock (14) to a in the inside of the container (2) arranged float (6) is integrally formed on the transport lock (14) with the bottom portion (36) of the Container (2) is connected and after the breaking of the transport lock (14) floats on the liquid.

1 9. Wanddosierspender according to claim 1 8, wherein the container (2) is at least partially transparent or translucent, to make the float (6) and its instantaneous position within the container (2) visible from the outside.

20. Wanddosierspender according to at least one of claims 1 to 1 9, wherein in addition a cover (4) is provided, which on the wall holder (1) can be placed or directly or indirectly connected thereto, the container (2) and the removal device covering and together with the container (2) relative to the wall bracket (1) is movable.

21. Wall-dose dispenser according to claim 20, wherein the cover (4) via at least one hinge (22, 24) with the wall bracket (1) is connected to allow by swiveling (4) of the cover, a replacement of the container (2).