DE102017122729A1 - Wanddosierspender - Google Patents

Abstract

The present invention relates to a Wanddosierspender for providing and withdrawing a liquid, in particular a washing-active substance or a care product for personal care, with a wall bracket 1 for attaching the Wanddosierspenders to a structural device, with a replaceable container 2 for the liquid having a head portion 32 with has at least one removal opening 33, and with a removal device for the metered removal of liquid from the container 2, which is arranged on the head portion 32 of the attached to the wall bracket 1 container 2 and a fixed or movably connected to the wall bracket 1 or integrally formed on this projection 19th The removal device contains a pump device which is designed in particular as a metering bellows 9 or as a piston pump and which on the one hand has a filling opening 34 with which it is attached to the removal opening 33 of the container 2 and on the other side a dispensing opening Furthermore, the extraction device further comprises a spring element 12, which is arranged outside the pumping device and acts between the projection 19 and the head region 32 of the container 2, and the pump device is through Relative movements between the head portion 32 of the container 2 and the projection 19 of the wall bracket 1 operable.

Description

The present invention relates to a Wanddosierspender for providing and removing a liquid, in particular a washing-active substance or a care product for personal care, according to the preamble of claim 1. Such a Wanddosierspender comprises a wall mount for attachment to a structural device and a replaceable container for the liquid with a head region, in which at least one removal opening is provided, as well as a removal device for metered removal of liquid from the container. The removal device is in any case arranged at the head region of the container when it is attached to the wall mount, and it comprises a fixed or movably connected to the wall mount or integrally formed thereon, in this case referred to as a projection holding and / or actuating element.

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.

The projection or the holding and / or actuating element, which is fixedly or movably connected to the wall mount, or can also be formed on this, can have a wide variety of forms and, for example, form only a support surface or a lever mechanism movable plate or receptacle for be the container, or it can also be modeled after the cap DE 10 2009 024 769 B3 or as a cuff or as a holder in the sense of EP 2 582 277 A1 or the DE 10 2015 100 201 A1 be educated.

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 Wanddosierspender are characterized by the fact that the liquid products stored therein can be dosed and hygienically removed while still a certain volume of liquid products can be kept to the useful life to refilling the dispenser or until the necessary replacement of the container for longer periods of typically several days.

Wanddosierspender of the present type are usually designed so that the container is inserted upside down in the wall bracket, ie with a downwardly facing removal opening. The removal of the liquid is thus carried out by utilizing gravity; a user holds his hand under the sampling device, from which the liquid falls down. This implies that the sampling device must be provided with a valve which closes the container directly or indirectly and is only opened by the user to remove the liquid. 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 is therefore known 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 in the DE 296 01 918 U1 described indirectly exerts pressure on the container, or acts directly on the container, as for example from the DE 10 2009 024 769 B3 or the DE 10 2010 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 Wanddosierspendern whose container must be deformed to dispense liquid, it is known to operate Wanddosierspender with a pumping movement. Such Wanddosierspender have an independent from the container pumping mechanism, which is usually operated by means of a lever.

The operation of a lever of the pump mechanism is often not intuitive and often leads inexperienced users to spend a fluid dose that the user does not catch with his hand so that it is lost. Furthermore, known pump mechanisms are expensive and prevent a simple placement of the container on the projection of the wall bracket to attach the container to the wall bracket.

Based on the above-described prior art with Wanddosierspendern whose container must be deformed to dispense a dose of liquid, the present invention seeks to propose an improved in terms of operation and in terms of a constant dose of liquid Wanddosierspender.

This object is achieved by a Wanddosierspender with the features of claim 1. Preferred embodiments and further developments of the Wanddosierspenders invention are set forth in claims 2 to 22.

An inventive wall dispenser with a replaceable container for the liquid, 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, which is arranged at a head portion of the attached to the wall bracket container in the the container having a removal opening, and comprises a fixed or movably connected to the wall bracket or molded onto this projection, is characterized by the fact that the removal device includes a pumping device, which is designed in particular as Dosierbalg, piston pump or telescopic chamber and on the one hand a filling opening and on the other hand has a discharge opening. The filling opening is attached to the removal opening of the container and can be firmly connected to this; the dispensing opening is provided with or cooperates with a dispensing valve. The removal device according to the invention also has a spring element which acts between the projection and the head region of the container, but is not necessarily arranged there and is located outside the pump device. Finally, the pumping device of the wall-dose dispenser according to the invention can be actuated by relative movements between the head region of the container and the projection of the wall holder.

If the container, as is preferred within the scope of the present invention, is mounted with the head portion down on the wall mount, the liquid can be removed falling down.

In this case, the container can be moved against the projection to actuate the pumping device. This offers further advantages, since in this way the discharge opening for the liquid can remain stationary during the pumping movement, which allows constructive simplifications and thus corresponding cost savings in the production of the Wanddosierspenders.

In addition, by moving the container to actuate the pumping device, the user may act on the dispenser dispenser at a location that is relatively far from the dispensing opening for the liquid. This results in a real two-hand operation, which is particularly easy for older people and is intuitive. It is also particularly easy to keep the force required to move the container independently of the level constant, which in turn brings a particularly advantageous for older people, simplified operation with it.

Particularly intuitive is an axial pumping movement, ie a pumping movement to the extraction point. This is realized when the container is movable relative to and along the wall bracket. The container should be moved downwards if liquid is to be dosed. In order to end a pumping cycle, the container is then moved upwards again by means of the spring element, so that the user only has to press the container downwards.

The spring element is preferably formed as a helical spring, in particular made of metal, so that it is able to move the weight of a full container up again to complete a pumping cycle.

Since the user pushes the container down to dispense a dose of liquid and naturally clamps the spring element, it is hardly significant that dosing dispensers of the present type are usually filled with liquids that have a high viscosity. For the force that has to be expended for dispensing a fluid dose can naturally be particularly easily expended when the user presses on the container from above and moves it downwards.

In this case, 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. The guide rail inevitably results in a positionally correct arrangement 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.

The projection of the wall bracket, which is suitably fixed in this preferred embodiment of the invention connected to the wall bracket or molded onto this, thus forms a stationary part of the removal device in the pumping movement, while the container during the pumping movement relative to the wall bracket and thus also relative to Advance moves. The projection forms a kind of support for placing or inserting the container, preferably between the container and the projection, the pumping mechanism of the removal device is arranged so that the container is 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.

The inventive arrangement of the spring element outside the pumping device, the pumped in the pumping liquid fluid can not get in 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, the spring element can thus be fastened in particular to the wall mount, for example to the projection of the wall mount, or also to or in the guide rail, while the receptacle together with the pump device forms an exchangeable refill unit of the wall dosing dispenser. Thus, a defect of the pumping device can be easily remedied by inserting a new refill without having to perform repairs on site, while at the same time the usually made of metal and thus high-quality spring element remains in the wall bracket, which is advantageous for the cost of the replaceable refill unit lowers.

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 embodiment of the removal device according to the invention also makes it possible, in particular, to use a metering bellows as pumping device, which is compressed and / or expanded by means of a relative movement between the head region of the container and the projection of the wall mount and in particular of an elastomeric material, for example silicone or also PP, TPE or PE exists. On the one hand this Dosierbalg has a filling opening, with which it is attached to the removal opening of the container, and on the other hand, the Dosierbalg has a dispensing opening, which is provided with a dispensing valve or cooperates with such by, for example, when inserting a container and Dosierbalg existing Refill unit is placed on a remaining on the wall bracket dispensing valve.

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. The removal opening of the container comes to lie here within the filling opening of the Dosierbalgs, and formed in the removal opening or formed as part of the Dosierbalgs removal valve ensures that the Dosierbalg is indeed filled via the withdrawal opening with liquid during expansion, but this when compressing the Dosing bellows can not flow back into the container. The dispensing valve, as known per se, for example from the DE 10 2009 024 769 B3 Conversely, when a dosing bellows is compressed, fluid is discharged from the dispensing port through the dispensing valve, but fluid is prevented from escaping when the dosing bellows is stationary, and is also prevented from being discharged. that air is drawn through the dispensing valve and the dispensing opening in the Dosierbalg when expanding the Dosierbalg.

Because of the spring element according to the present invention, the dosing bellows can be made soft and even substantially without any elastic restoring force, which enables cost-effective manufacturability and the use of cost-effective and / or inert or food-grade materials.

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 an economical as well as ecologically advantageous use of the liquid held by the wall dispenser, this is a not negligible advantage.

In order to optimize this intrinsic advantage of a metering bellows, it is preferable 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 for example be designed 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, causing the Output quantity per pump movement changed 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 optimum dose for the respective intended use in a resource-saving and cost-saving manner.

The stop for limiting the movement stroke of the pumping device can for example be realized on an intermediate element which is inserted between the projection and the head region of the container and designed to be pivotable or displaceable. This makes it possible to activate or deactivate the various stages by turning or moving, without having to remove the container from the wall bracket or to remove the pumping device.

Of course, such a stop can also be combined with another pumping device, for example a piston pump.

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 can be provided that the key element can not be a specific key element, but also a common tool, such as a screwdriver.

The spring element which, according to the invention, acts between the projection of the wall mount and the head region of the container can be arranged directly between these two components and, for example, surround a dosing bellows as a helical spring. However, it may also be arranged at any other location of the Wanddosierspenders, 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 may therefore also be 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 mating surface such as 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. Finally, so any contact with liquid output is excluded, which can have a positive effect on the life of the spring element.

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 for the volume of liquid dispensed by inflowing air, so that no negative pressure forms in the container, which 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. Rather, this allows unhindered 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. For this purpose, appropriate elements to be provided on the wall bracket, if necessary, 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 thereof, through which the transport lock breaks off 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 is forcibly pierced when inserting the container in the wall bracket or must be.

It is particularly preferred in this case if at least a part of the transport lock is formed on a float arranged inside the container, which is connected via the transport lock with the bottom portion of the container and which floats on the liquid after opening the transport lock. If the container is formed at least partially transparent or translucent, this float can in particular serve to make the current liquid level visible from the outside. In addition, the float may be arranged to ensure that even a higher viscosity liquid is uniformly withdrawn from the container by stripping the liquid from the inner surface of the container wall and preventing the liquid surface from forming a funnel.

When a part of the transport lock to be broken off from the ventilation opening is formed on such a float, there is also the advantage that no small fragments of the transport lock reach the interior of the container and its removal opening, by the way. 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 designed or even has only a translucent strip between its bottom portion and its head area and / or if a colorless liquid is stored therein, it is sometimes difficult to detect the liquid level from the outside. In sanitary areas of the catering industry, however, it must be prevented as reliably as in the bathroom area of hotel rooms that the wall dispenser is 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 Wanddosierspenders invention, this can finally be provided with a cover which is placed on the wall mount or connected to this, covers the container and the removal device 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 preferably present float can be recognized, if the Fluid level has lowered to this window.

In order to enable the replacement of the container despite the cover, without having to replace the same cover, it is preferable to connect the cover at least one hinge with the wall bracket to them to Swinging the container can swing. 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 selectively 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.

• 1 eine schematische Explosionsdarstellung eines erfindungsgemäß ausgestalteten Wanddosierspenders;
• 2 eine Ansicht einer auswechselbaren Nachfülleinheit im Transportzustand, mit Detailansicht der Transportsicherung;
• 3 eine Ansicht wie 2, jedoch nach Entfernen der Transportsicherung;
• 4 eine Darstellung wie 1, jedoch eines anderen Ausführungsbeispiels.

An exemplary embodiment of an inventively designed Wanddosierspender is described below with reference to the accompanying drawings and explained. Show it:

• 1 a schematic exploded view of an inventively designed Wanddosierspenders;
• 2 a view of an interchangeable refill unit in the transport state, with detailed view of the transport lock;
• 3 a view like 2 , but after removal of the transport lock;
• 4 a representation like 1 but of another embodiment.

The in 1 shown wall dispenser consists essentially of a wall bracket 1 with a guide rail 18 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 even a body care lotion while the container is being used 2 in the present case, 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 the metered removal of liquid consists of a removal opening 33 in the container 2 that with a withdrawal valve 10 is closed, a Dosierbalg 9 of an elastomeric material having a filling opening 34 and a dispensing opening 35 , a dispensing valve 11 , a spring element 12 as well as a lead 19 the wall bracket 1 with a valve support 30 for the dispensing valve 11 and a passage opening 31 for dispensing the liquid down, taking between the projection 19 and a head area 32 of the container 2 in which the removal opening 33 located, a Dosiermengenbegrenzer 29 is arranged. Parts of the sampling device are thus through the container 2 and the wall mount 1 educated.

The in the 2 and 3 Refill unit shown accordingly consists of the container 2 and parts of the removal device, namely the removal opening 33 in the head area 32 of the container 2 , the extraction valve 10 , the dosing bellows 9 and the dispensing valve 11 , These parts of the sampling device with a to the container 2 molded apron 13 are covered.

As parts of the container 2 are in 1 also a closure lid 7 with ventilation opening 15 and torus 37 , an activation cap 8th with a guide nose 17 as well as a float 6 with support wings 16 and transport security 14 in a floor area 36 , the head area 32 of the container 2 with the removal opening 33 opposite to recognize.

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

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

To the wall bracket 1 is the lead 19 molded onto which the refill unit ( 2 and 3 ) is placed. This is the guide nose 17 in the ground area 36 of the container 2 as well as a guide element 38 ( 2 ) in the head area 32 of the container 2 in the guide rail 18 the wall bracket 1 one. In the upper area of the guide rail 18 which is responsible for receiving the guide nose 17 serves, is the guide rail 18 provided with undercuts to a tilting of the floor area 36 of the container 2 to prevent. The projection forms in a similar way 19 on the guide rail 18 Undercuts, in the holding surfaces 40 ( 2 ) of the container 2 who is here in the apron 13 continues, intervene and the container 2 insofar along the guide rail 18 moving up and down on the wall mount 1 hold.

That between the holding surfaces 40 arranged guide element 38 ( 2 ) is with a latch 41 provided when inserting the container 2 or its guide nose 17 and its holding surfaces 40 in the guide rail 18 one in the guide rail 18 used, designed as a locking spring anti-theft device 21 deformed when sliding along, after which the locking spring snaps back and pulling out of the container 2 from the undercuts of the guide rail 18 and the projection 19 prevented upwards.

When placing the container 2 or the refill unit on the projection 19 the wall bracket 1 comes the dispensing valve 11 on the valve pad 30 of the projection 19 to lie so that the opening of the dispensing valve 11 above the passage opening 31 located and liquid coming out of the dispensing valve 11 is issued through the passage opening 31 of the projection 19 through down. Also the spring element 12 , Which in this case consists of a metallic coil spring, rests on the projection 19 but indirectly via the dosing quantity limiter in between 29 , The spring element 12 surrounds the dosing bellows 9 , whose output opening 35 from the dispensing valve 11 is closed, outside. The filling opening 34 of the dosing bellows 9 is with a collar 41 provided with the dosing bellows 9 liquid-tight to a head plate 42 in the container 2 ( 2 ) is attached and preferably cohesively attached to this. The headstock 42 in which the removal opening 33 thus covers the filling opening 34 of the dosing bellows 9 and the volume of the dosing bellows 9 is over the removal opening 33 with the interior of the container 2 connected. The removal opening 33 is with the extraction valve 10 , which is designed as a shield valve check valve, closed. The extraction valve 10 could also be designed as a slit valve, Phillips valve, duckbill valve, flapper valve or in any other form.

Now the container 2 along the guide rail 18 opposite the wall bracket 1 down against the not moving moving projection 19 pressed, the Dosierbalg 9 and the spring element 12 compressed. The contents of the dosing bellows 9 can because of the sampling valve 10 not through the removal opening 33 back into the container 2 flow, so because of the pressure the dispensing valve 11 that, as if from the DE 10 2009 024 769 B3 is known, opens and the contents of the Dosierbalgs 9 through the passage opening 31 in the lead 19 through downwards. Also the dispensing valve 11 may alternatively be formed in any other suitable form.

Will the container 2 released, this is due to the elastic restoring force of the spring element 12 again along the guide rail 18 moved upwards, causing the Dosierbalg 9 is expanded. The dispensing valve 11 prevents ambient air from expanding the dosing bellows 9 is drawn into this, so that the extraction valve 10 opens and liquid from the container 2 flows in and / or in the Dosierbalg 9 is involved. Thus, a pumping cycle is finished, for example, outputs a constant dose of 6 ml, which is the maximum content of the Dosierbalgs 9 equivalent. To change this dose is the Dosiermengenbegrenzer 29 on the lead 19 rotatably placed, leaving a stop 5 who, in the present case, provides for three stages, may be placed in a position with a counter-attack 39 ( 2 ) on the container 2 Corresponds, depending on which stage of the attack 5 the counter-attack 39 strikes when the container 2 is pushed down, the movement stroke of the metering bellows 9 Such limited, that in the Dosierbalg 9 flowing and output by this in the subsequent pumping cycle dose is less than its maximum volume; present are the stages of the attack 5 designed so that you can choose between a dispensing amount of 2 ml, 4 ml and 6 ml.

The spring element 12 is thus outside the Dosierbalgs 9 arranged and comes in no case with the liquid in contact. Rather, this merely gets in contact with the inner wall of the container 2 , the extraction valve 10 , the inner wall of the dosing bellows 9 and the dispensing valve 11 , As a further advantage results from this arrangement of the spring element 12 in that it can be exchanged very easily, if for example its elastic restoring force should decrease, or if a stronger or weaker spring force is desired. The spring element 12 can work together with the dosing bellows 9 on the container 2 attached and thus be part of the refill unit; It can - as in the present case - but also cost-absorbing on the wall bracket 1 remain when the container 2 is exchanged.

Due to the spring element 12 , which can be made of spring steel, as it does not get any contact with the liquid to be dispensed, the Dosierbalg 9 be made of a low-cost elastomer, such as silicone, because of its elasticity and in particular the resulting elastic restoring force are no special requirements. This further reduces the production costs of the refill unit.

The cover 4 that with the sight opening 27 is provided to detect from the outside when the liquid level in the container 2 has decreased so far that this should be replaced, by means of two (not visible) pin in the articulated arms 24 held, which in turn on the pivot pin 22 the adapter plate 3 to sit. The cover 4 This gives you the option of moving along the articulated arms 24 , in their longitudinal grooves, to move up and down, allowing them the pumping motion of the container 2 can join. The cover 4 lies with a flattened top 43 on the activation cap 8th of the container 2 on, giving a user a pressure on the top 43 the cover 4 a movement of the cover 4 and the container 2 along the guide rail 18 down causes what causes the pumping movement for dispensing liquid. The holding elements 26 the adapter plate 3 are here by (again invisible) counterparts in the upper part of the cover 4 engaged behind, leaving the cover 4 Total on the adapter plate 3 is positively driven and only the necessary for the pumping movement vertical movement can perform up and down.

To the container 2 to be able to replace the cover 4 raised so far that the holding elements 26 no longer be undercut, according to which the cover 4 around the pivot pins 22 via the articulated arms 24 can be swung forwards and downwards. Again, an anti-theft device is provided by the locking elements 23 is formed; These prevent the cover 4 can be raised so far that they are out of engagement with the retaining elements 26 device.

The key element 28 , which is naturally a separately entrained part can, if necessary in the guide grooves 20 be introduced, whereby on the one hand the locking spring of the anti-theft device 21 to the rear and the latch 41 of the container 2 pressed forward to take these two elements out of engagement and movement of the container 2 to enable upwards; on the other hand, the key element pushes 28 by means of the spring tongues 25 the locking elements 23 these in a position that also lifting the cover 4 allows these to be disengaged from the retaining elements 26 the adapter plate 3 to take.

The bottom area of the container 2 is with the cap 7 locked. This sits with his torus 37 on the annular edge of the otherwise cylindrical container 2 on what a particularly easy filling of the container 2 ensured with subsequent closure of the same. The ventilation opening 15 ensures that air in the container 2 can flow when liquid down through the discharge opening 33 is issued. Accordingly, the activation cap 8th not airtight with the cap 7 connected; Alternatively, the wall of the closure lid 7 have an air passage.

In the factory state after filling the container 2 and before inserting it into the wall bracket 1 , is the swimmer 6 about his transport security 14 to the cap 7 molded or cohesively connected thereto, so that the closure lid 7 and the swimmer 6 in one piece in the floor area 36 of the container 2 be used. The supporting wings 16 attached to the float 6 are molded, this bend upwards ( 2 , Detail) and thereby ensure that the float 6 circumferentially distributed in contact with the inner wall of the container 2 comes.

When inserting the container 2 or in the 2 and 3 Refill shown in the wall bracket 1 becomes the transport security 14 aborted at a predetermined breaking point, and the float 6 falls into the container 2 into it, taking the vent 15 in the cap 7 free. This process is in the 2 and 3 shown, wherein the 2 the situation during the transport of the container 2 or the refill unit shows while in 3 the installation situation is shown, in which the container 2 at the (here For clarity) wall bracket 1 is held.

As 2 clarifies, is the cap 7 on the floor area 36 of the container 2 put on to close this. The activation cap 8th sits on top of the cap 7 and forms with a curved surface a particularly pleasant surface for actuating the Wanddosierspenders, according to the invention by depressing the container 2 is pressed. On its underside has the activation cap 8th a cylindrical grub screw 44 on that in an internal thread 45 at the ventilation opening 15 is screwed. Thus, the activation cap 8th and the cap 7 securely connected. A centric activation pen 46 lies on the transport security 14 on and is thinner than the diameter of the ventilation opening 15 that of the transport lock 14 is closed. At the transition from the cap 7 for transport security 14 there is a predetermined breaking point.

Should now the container 2 or in the 2 and 3 illustrated refill unit on the wall bracket 1 must be attached, the guide nose 17 attached to the activation cap 8th is molded, and the guide element 38 be aligned to the container in the guide rail 18 to be able to use. For this the activation cap must 8th 90 ° around the vertical axis of the container 2 be turned, what the in 3 illustrated situation leads.

By this rotation of the activation cap 8th This moves due to the engagement of the threaded pin 44 in the internal thread 45 a little way down.

This movement is enough to allow the activation pen 46 the transport security 14 breaks off at the predetermined breaking point. The swimmer 6 thus dissolves from the cap 7 and falls, as in the detail view in 3 shown, down into the container 2 into it. The ventilation opening 15 is hereby released.

The swimmer 6 is here designed as a round disc, the inner contour of the cylindrically shaped container 2 essentially matches, so that it is in the container 2 can move up and down. The supporting wings 16 make sure that the swimmer 6 inside the container 2 does not tilt, but always remains in a horizontal position. Depending on the intended gap dimensions can also be on the support wings 16 be waived. The swimmer 6 has a lower density than that in the container 2 Liquid so that it floats on this liquid, without dipping into the liquid. When the liquid level drops by removing liquid, the float sinks 6 with off. In contrast to the liquid level is the float 6 through the translucent held wall of the container 2 Easily recognizable from the outside, in particular through the viewing aperture 27 in the cover 4 therethrough. This allows service personnel to easily identify at any time, whether the container 2 or the refill unit must be replaced.

As the outer contour of the float 6 in about the clear inside diameter of the container 2 At the same time, he is able to meniscus the liquid in the container 2 to prevent if, for example, a liquid in the container 2 is stored, which is difficult to refill, for example because it has a relatively high viscosity or a high adhesion to the vessel wall. The swimmer 6 equalizes the liquid level and optionally wipes liquid from the wall of the container 2 from. This allows complete emptying of the container 2 especially when the liquid level in the head area 32 of the container 2 located.

When the container 2 is almost completely emptied, and the float 6 accordingly near the bottom plate 42 of the container 2 arrived, he sucks on an annular shoulder 47 stuck, at the transition of the wall of the container 2 to the bottom plate 42 is provided. In cooperation with the extraction valve 10 It is then no longer possible with reasonable effort, the swimmer 6 again from the bottom plate 42 or from the annular shoulder 47 to remove what an unqualified refilling the container 2 prevented from above. This is a great advantage for product safety and quality assurance. The swimmer 6 , due to a one-piece design with the closure lid 7 can not be forgotten when assembling the refill unit, thus combining 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.

4 shows a schematic exploded view of an embodiment of a inventively designed Wanddosierspender that a variant of the in 1 illustrated embodiment is and largely consistent with this. Reference is therefore made to the preceding description for the matching features.

The in 4 shown Wanddosierspender differs from that Wanddosierspender that in 1 is shown by the arrangement and construction of the spring element 12 , This does not surround here, as in the embodiment according to 1 , the dosing bellows 9 and she is not between the head area either 32 of the container 2 and the lead 19 the wall bracket 1 arranged. There is only the Dosierbalg 9 with his dispensing valve 11 ,

The dosing bellows 9 is also at the wall dispenser, which in 1 is shown, usually together with its dispensing valve 11 firmly on the container 2 attached and thus part of the replaceable refill unit. Because the spring element 12 Preferably, however, a metallic coil spring, it is not very advantageous for cost reasons, these also provide as part of the replaceable refill unit. If you have the spring element 12 but not firmly on the container 2 attaches, it remains at a removal of the replaceable refill on the projection 19 or on the dosing quantity limiter 29 , This requires that the Dosierbalg 9 when inserting the replaceable refill unit in the spring element 12 which requires a certain amount of care and thus can be problematic.

At the in 4 shown Wanddosierspender is the trained as a metallic coil spring spring element 12 now on the wall bracket 1 and is there in the guide rail 18 used. In the guide rail 18 it is arranged protected against dirt and damage. In addition, it gets there from the guide rail 18 laterally supported 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 18 on which the spring element 12 stands, forms the bearing for the spring element 12 on which it faces the wall bracket 1 supported. When the container 2 or the replaceable refill unit in the guide rail 18 is used, the guide nose attacks 17 in the ground area 36 of the container 2 in the guide rail 18 and meets there on the upper end of the spring element 12 , which causes the spring element 12 as a result, at the lead 17 against the container 2 or the replaceable refill unit is supported.

The spring force of the spring element 12 So acts in this embodiment between a projection within the guide rail 18 the wall bracket 1 and the guide nose 17 at the activation cap 8th in the ground area 36 of the container 2 , resulting in the container 2 only against the elastic spring force of the spring element 12 relative to the wall bracket 1 can be moved. The spring element 12 is as well as in the embodiment according to 1 when depressing the container 2 along the guide rail 18 compressed. At the same time also the dosing bellows 8th compressed. By compressing the dosing bellows 9 Liquid is going down through the port 31 in the lead 19 issued, and due to the elastic restoring force of the spring element 12 becomes the container 2 when it is released again along the guide rail 18 moved upwards, causing the Dosierbalg 9 is expanded and refills with a dose of liquid to be dispensed.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102009024769 B3 [0003, 0005, 0022, 0053]
• EP 2582277 A1 [0003]
• DE 102015100201 A1 [0003]
• DE 29601918 U1 [0005]
• DE 102010024081 A1 [0005]

Claims (22)

A wall dispenser for providing and removing a liquid, in particular a detergent substance or a care product for personal care, with a wall holder (1) for attaching the wall dispenser to a building device, with a replaceable container (2) for the liquid, which has a head area (32) with at least one removal opening (33), and with a removal device for metered removal of liquid from the container (2) which is arranged on the head region (32) of the wall mount (1) mounted container (2) and one with the wall mount (1) fixedly or movably connected or formed on this projection (19), characterized in that the removal device includes a pumping device, on the one hand a filling opening (34), with which it to the removal opening (33) of the container (2) is attached, and on the other hand has a discharge opening (35) connected to an output valve (11) is provided or cooperates with such that the removal device further comprises a pump device disposed outside, between the projection (19) and the head portion (32) of the container (2) acting spring element (12), and that the pumping device Relative movements between the head portion (32) of the container (2) and the projection (19) of the wall bracket (1) can be actuated. Wall dispenser after Claim 1 , wherein the container (2) with the head portion (32) down to the wall bracket (1) is mounted. Wanddosierspender after one of Claims 1 or 2 , wherein the spring element (12) as a helical spring, preferably made of metal, is formed. Wanddosierspender after at least one of Claims 1 to 3 wherein the pumping device consists essentially of a Dosierbalg (9) which is compressible and / or expandable by means of a relative movement between the head portion (32) of the container (2) and the projection (19) of the wall bracket (1) and in particular from a elastomeric material is made. Wanddosierspender after the Claims 3 and 4 , wherein the spring element (12), the Dosierbalg (9) surrounding, between the head portion (32) of the container (2) and the projection (19) of the wall bracket (1) is arranged. Wanddosierspender after at least one of Claims 1 to 5 wherein the projection (19) is fixedly connected to or integrally formed with the wall bracket (1), and wherein the container (2) is movable against the projection (19) to actuate the pumping device. Wall dispenser after Claim 6 wherein the container (2) is movable relative to the wall support (1) along the same. Wall dispenser after Claim 7 wherein the container (2) is movable relative to and along the wall mount (1) by means of a guide rail (18) provided on the container (2) and / or on the wall mount (1) to actuate the pumping device. Wall dispenser after Claim 8 , wherein the spring element (12) in the wall bracket (1), in particular in the guide rail (18) is inserted and with a fixed to the container (2) connected counter surface, in particular a guide nose (17) cooperates. Wanddosierspender after at least one of Claims 1 to 9 , wherein at the head portion (32) of the container (2), on the projection (19) of the wall bracket (1) or between the head portion (32) of the container (2) and the projection (19) an adjustable stop (5) for limiting the Movement of the pumping device is arranged. Wall dispenser after Claim 10 in that the stop (5) is stepped and arranged on a pivotable or displaceable intermediate element in order to activate and / or deactivate the various stages by turning or shifting. Wanddosierspender after at least one of Claims 1 to 11 wherein the projection (19) of the wall bracket (1) is provided with a passage opening (31) for discharging liquid from the extraction device downward. Wanddosierspender after at least one of Claims 1 to 12 wherein the spring element (12) on the wall mount (1), in particular on the projection (19) or on the guide rail (18) is fixed and wherein the container (2) forms an interchangeable refill of the Wanddosierspenders together with the pumping device. Wall dispenser after Claim 8 wherein the guide rail (18) is provided with an anti-theft device (21) against separation of the container (2) from the wall mount (1). Wall dispenser after Claim 14 , 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). Wanddosierspender after at least one of Claims 1 to 15 in that the container (2) is provided with a ventilation opening (15) in a bottom area (36), which is opposite the head area (32). Wall dispenser after Claim 16 , wherein the ventilation opening (15) of the container (2) with a when attaching the container (2) on the wall bracket (1) can be opened and / or automatically opening transport lock (14) is closed. Wall dispenser after Claim 17 wherein the transport lock (14) 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. Wall dispenser after Claim 18 , Wherein at least a part of the transport lock (14) is formed on a float (6) arranged inside the container (2), which is connected to the bottom area (36) of the container (2) via the transport lock (14) and after Breaking the transport lock (14) floats on the liquid. Wall dispenser after Claim 19 , wherein the container (2) is formed at least partially transparent or translucent to make the float (6) and its instantaneous position within the container (2) visible from the outside. Wanddosierspender after at least one of Claims 1 to 20 , wherein also a cover (4) is provided, which is placed on the wall mount (1) or directly or indirectly connected thereto, the container (2) and the removal device covers and together with the container (2) relative to the wall mount (1 ) is movable. Wall dispenser after Claim 21 in that the cover (4) is connected to the wall mount (1) via at least one hinge (22, 24) in order to enable swapping of the container (2) by pivoting (4) the cover.

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