EP2383045A2 - Dispensing device for liquids - Google Patents

Abstract

The device has a pump device transferring liquid of a liquid reservoir (10) to an exhaust opening (23) for the liquid. The pump device comprises a movable pump element that moves the reservoir into the opening by a movement relative to a housing. A revolving element (30) is arranged at an outer side of the housing and rotatably provided around a revolving element-rotational axis (1). The pump device is coupled via a coupling mechanism such that a rotating movement of the revolving element enables moving the pump element and transferring liquid by the pump device.

Description

The invention relates to a discharge device for a medium having a housing, an outlet opening for the medium and a pumping device for conveying the medium from a medium reservoir to the outlet opening, wherein the pumping device has at least one movable first pump member which promotes relative movement relative to the housing causes the medium from the medium reservoir to the outlet opening.

Generic discharge devices are well known from the prior art. They are used in particular for the discharge of pharmaceutical and cosmetic liquids. These are usually conveyed by operating an actuating handle of the discharge by a user using the pumping device.

Also known from the prior art so-called deodorant scooters, on whose outlet side a ball is mounted, which is rotated by rolling on the skin of a user. She wears a liquid film from an interior of the deodorant roller to the outside, where it is discharged by rolling on the skin of the user.

One problem with many dispensing devices of the prior art is that they ensure reliable media discharge only in certain orientations.

Task and solution

The object of the invention is to develop a generic discharge device to the effect that this allows a particularly comfortable and reliable way of discharging a medium on a surface, in particular on a skin area of a user.

According to the invention, this is achieved by providing at least one roll-off member rotatably mounted about a roll-off axis of rotation on the housing of a discharge device which is at least partially freely accessible on an outer side of the housing and which is coupled to the pumping device via a coupling mechanism. a rotational movement of the unrolling element causes a movement of the first pumping member and thereby a medium delivery by means of the pumping device.

A generic discharge device is preferably designed as a mobile device to be guided with one hand. This is intended with the at least one rolling member against a medium to be provided with the surface, in particular a skin area pressed. Starting from this pressed starting position, the discharge device is moved while maintaining a sufficient pressing force transversely to the extension of the Abrollglieddrehachse on said surface or skin area, wherein it comes to unroll the Abrollgliedes on the surface. This will cause the pumping device operated, which promotes the medium from the medium reservoir to the outlet opening, so that this medium is then discharged on said surface. The dispensing device according to the invention is particularly advantageous for the elderly and for people with physical disabilities, as it allows the medium to be deployed on any part of the body and without restriction as to the orientation of the dispensing device.

The outlet opening is preferably slightly set back from the maximum radius of the unwinding member, preferably by 2 mm or less, in particular between 1 mm and 2 mm. This ensures that even in an overhead position the medium reaches the area to be provided with the medium. This distance of 1 mm to 2 mm is particularly advantageous in connection with a wide outlet opening, preferably with a width of at least 15 mm, since it allows a strip of a defined thickness and a defined width to be applied to the skin, not a subsequent one Manual distribution by the user requires more. This is very useful, for example, in the application of cold wax.

The rolling member is preferably formed as a wheel. However, it can also be designed as a rotatable about the Abrollglied rotation axis ball. The Abrollglied-axis of rotation is preferably aligned orthogonal to the main direction of extension of the discharge and / or defined by the discharge opening discharge.

The unwinding member may itself be arranged in the outlet opening, so that the medium is dispensed via the unrolling member. However, a design is preferred in which the outlet opening is formed separately from the unrolling element and in which, in particular, different perforations are provided in a housing wall for the unrolling member on the one hand and the outlet opening on the other hand. The outlet opening may have various shapes and thus be designed, for example, to deliver the medium in the form of a broad stroke.

As a medium storage known for discharge devices usual designs come into question. Thus, a medium storage can be designed so that it has a constant volume, wherein in the course of the discharge of the medium to prevent a negative pressure in the medium storage air is sucked to replace the discharged medium in the medium storage. However, preference is given to a volume-variable medium reservoir, in particular a medium reservoir such as a tube or a bag with a shape-flexible wall which adapts to the decreasing volume of media, or a medium reservoir with a drag piston. Such designs with volume-variable medium reservoirs are advantageous because they do not absorb air over their entire life cycle and thus there is no danger that the pumping device sucks air instead of the medium in unfavorable orientation of the discharge.

The pump device is designed such that it sucks the medium from the medium reservoir by means of negative pressure or sets the medium in the medium reservoir under overpressure, so that a medium discharge is ensured reliably and independently of the orientation of the discharge. The pumping device may be designed such that it directly encompasses the medium reservoir. In such an embodiment, the medium reservoir is thus reduced in volume in the course of rolling the Abrollgliedes to promote the medium to the outlet. However, a design is preferred in which the pump device is designed separately and is arranged between the medium reservoir on the one hand and the outlet opening on the other hand.

The pump device has, with the first pump member, at least one pump member, which is designed to be movable relative to the housing. Preferably, this movable pump member directly limits a volume variable pumping chamber of the pumping device. Alternatively, it indirectly conveys the medium, it being possible for example to design it as a sliding shoe of a peristaltic pump.

In a first embodiment, the first pump member is rotatably mounted relative to the housing. This allows a comparatively simple embodiment of the coupling mechanism. Particularly simple is the design, when the pump member is formed coaxially with the at least one Abrollglied and is firmly connected thereto. A greater structural flexibility is achieved when the rotatable first pump member is rotatably mounted about an axis deviating from the Abrollglied axis of rotation, which may for example be arranged parallel to the Abrollglied axis of rotation.

Such a rotatably mounted first pump member may be formed, for example, as a screw conveyor or in particular as part of a peristaltic pump whose delivery hose is squeezed together by means of the first pump member to push the medium in the hose in the direction of the outlet opening.

As an alternative to a first pump member rotatably mounted relative to the housing, the first pump member may in particular also be designed to be translationally movable relative to the housing and / or to a second pump member of the pump apparatus. This allows the design of the pump device as a piston pump, wherein the first pump member in such a case is preferably fixedly connected to the piston of this piston pump or forms. An embodiment of the pumping device as a bellows pump can also be realized by a first pumping element that is movable in translation.

A variant of this provides, the pump device with the first and the second pump member together as a whole about a first pivot axis pivotally mounted on the housing, wherein the first pump member is mounted on a abrollgliedseitig stationary and eccentric to the Abrollglied axis of rotation pivot axis pivotally mounted on the rolling member. With such a configuration, the pump device, which is preferably designed as a piston pump, is thus pivotally mounted in its entirety in the housing. The first pumping member and the second pumping member form the cylinder and the piston of the pumping device. Due to the pivotable connection of the first pumping member eccentrically on the rolling member is then simultaneously effected during the rolling of the Abrollgliedes a pendulum movement of the pumping device in its entirety and a lifting movement of the first pumping member relative to the second pumping member.

However, a variant in which the first pumping member is guided in a translationally movable manner along a housing-fixed movement path relative to the housing is advantageous.

The coupling mechanism between the unwinding member and the first pumping member can be achieved in such a case, for example via a pivotally mounted on the first pumping member and pivotally eccentrically mounted on the unwinding connecting rod intermediate member. However, a design is advantageous in which the first pumping member is operatively connected to the unwinding member by means of a slotted guide, this slotted guide preferably comprising a guide track rotatable about a guide track rotation axis and surrounding this guide track rotation axis on the unrolling member or a rotary member operatively connected to the unrolling member, which is spaced from the guide track rotation axis varying, and wherein the slotted guide further comprises an extension, the is attached to the first pump member and engages in the guide track.

As a result, a comparatively simple construction with few components is possible. In particular, this structure can be designed simply, if the guide track of the slide guide is provided directly on the rolling member, so that the guide track rotates together with the rolling member to the Abrollglied rotation axis. The extension, which is attached to the pump member and therefore only linearly movable relative to the housing, is translationally displaced by the varying spacing of the guide track of the guide track rotation axis and thus causes the pumping operation of the pumping device.

A coupling mechanism with slide guide forces both the Hubals and the return stroke of the first pump member, so that a return spring, in particular a metallic return spring, can be omitted.

In the simplest case, the guide track, which is subject to varying degrees of deviation from the guide track rotational axis, can have an eccentric circular shape with respect to the guide track. Advantageous may also be more complex designs, in which the distance of the guide track from the guide track rotational axis has a plurality of minima and maxima, in particular two or three minima and maxima, since this can cause a 360 ° rotational movement of the guide track two, three or more pump strokes causes a piston pump.

Since, depending on the type of pumping device used, a continuous delivery of the medium is not possible, for example because of the return stroke required for a piston pump, it may be advantageous to provide at least two pumping devices, wherein the at least a Abrollglied is coupled via the coupling mechanism in such a way with the two pumping devices, which causes a rotational movement of the Abrollgliedes temporally staggered medium promotions through the pumping device. It is also possible for the pumping chamber of the pumping device to be followed by a homogenisation chamber which receives part of the medium, preferably 50%, of it during the pumping stroke of the pumping device and which discharges this stored medium through the outlet opening during the return stroke. Even so, a quasi-continuous promotion of the medium can be achieved.

The invention also relates to an attachment for use with a discharge device. The discharge device, for the use of which such an attachment is provided, comprises a housing, a medium reservoir, an outlet opening, a pumping device for conveying medium from the medium reservoir to the outlet opening and an actuating region movable in translation relative to the housing, by means of which the pumping device is actuated by translational displacement can.

The attachment according to the invention is designed such that it has a housing which is designed for releasable coupling to the housing of the discharge device. Furthermore, the article as well as the discharge device according to the invention described above, a rotatably mounted about an axis of rotation on the housing of the essay mounted rolling member, which is arranged at least partially freely accessible on an outer side of the housing of the essay. The attachment further has a translationally guided relative to the housing of the attachment movable actuating portion which is adapted to abut in a coupling state in which the attachment is coupled to the discharge device, on the actuating surface of the discharge device. In addition, a coupling mechanism is provided, the is coupled to the actuating portion and the rolling member, which causes a rotational movement of the rolling member a translational lifting movement of the actuating portion.

An inventive attachment works similar to the prescribed discharge device according to the invention. However, unlike the discharge device according to the invention, the attachment does not itself have a pumping device and a medium reservoir, but is instead designed to be placed on a discharge device known per se, which contains these components. The coupling mechanism is therefore not adapted to directly connect the rolling member with a part of the pumping device, but acts on the actuating portion, which in turn moves the pumping device of the coupled discharge and rests for this purpose, for example on an operating handle provided for manual operation of the discharge.

The attachment according to the invention can be used to easily modify conventional dispensing devices to dispense the medium stored in response to the unwinding of the unwinding member. The discharge devices used for this purpose can be used in a form suitable directly for manual discharge. However, it can also be provided that an applicator arranged on these discharge devices is removed before the attachment according to the invention can be coupled.

The housing of the attachment can preferably be attached to the housing of the discharge device by means of a connection that can be achieved without tools, for example by a snap connection.

The essay can make do without its own outlet opening in a first embodiment. In such a case, the essay is designed to in that the outlet opening of the discharge device to which the attachment is intended to be coupled is exposed even when the attachment is mounted in such a way that the medium can be discharged directly through it. However, a design in which the attachment has a connecting channel which connects an outlet opening provided on the attachment with an inlet opening provided on the attachment is advantageous, wherein the inlet opening is arranged on the attachment in such a way that it is connected in the coupling state to the outlet opening of the discharge device.

Such a design may be advantageous because the attachment does not need recesses or the like to leave the discharge opening of the discharge device accessible. In addition, in many discharge devices, which are in principle suitable for use with the attachment, the outlet opening is displaced together with the actuating handle in the course of an actuation operation, so that without own outlet opening of the attachment a displacement of the outlet opening of the discharge relative to the attachment in the course of actuation would be expected. An outlet opening provided on the attachment also makes it possible to influence the discharge characteristics of the medium in a targeted manner through flow geometries assigned to the outlet opening.

Similar to the above-described discharge device according to the invention, it is considered advantageous if the coupling mechanism, which couples the roll-off member with the translationally movable operating portion, has a slotted guide. This preferably has about a guide track rotation axis rotatable and the guide track axis of rotation surrounding guide track on the rolling member itself or on a connected thereto rotary member, wherein the guide track is spaced from the guide track rotation axis varying. Furthermore, this link guide has an extension, in this case on Operating section is mounted and engages in the guide track.

The mode of operation corresponds to the above-described mode of operation with regard to the discharge device according to the invention.

For easy handling of the dispensing device according to the invention or the article according to the invention, it is considered advantageous if two rolling elements rotatable about an identical rolling element rotation axis are provided, wherein the outlet opening of the discharge device or the attachment is arranged between the rolling elements. The use of two unwinding leads to increased stability and easier handling during use.

Furthermore, it is considered advantageous if a pressure-dependent opening outlet valve is provided in the region of the outlet opening of the discharge device or of the attachment in order to prevent the penetration of contaminants.

The at least one unwinding member is preferably designed as a massage roller with a plurality of protruding projections in the radial direction. With such a massage roller, a relaxing effect of the treated body part is achieved simultaneously with the discharge of medium. It is also advantageous if the at least one unwinding element is exchangeable without tools, so that the massaging effect can be selectively produced, adapted and avoided by changing the unwinding element.

The invention comprises, in addition to the discharge device according to the invention and the attachment according to the invention also a set of an attachment according to the invention and a known discharge with the above sub-components. Here is the essay adapted to the discharge device, that the housing of the attachment to the housing of the discharge device can be coupled. In the coupled state that can be achieved thereby, the actuating portion of the attachment abuts against the actuating region of the discharge device.

In principle, a dispensing device according to the invention or a set with an attachment according to the invention can be used for a large number of liquid media. For example, use with food or glue is possible. However, use in particular with pharmaceutical or cosmetic products which are to be applied to the skin of a patient is regarded as intended use in particular. Accordingly, it is considered preferable if the discharge device according to the invention or the discharge device with the attachment according to the invention is filled with such a cosmetic or pharmaceutical liquid. As cosmetic fluids are especially nourishing cream, Cullulitecreme, sunscreen, body lotion, shower gel, self-tanner and cold wax dispenser for the depilation of body parts into consideration.

Brief description of the drawings

Fig. 1

eine erfindungsgemäße Austragvorrichtung in einer Gesamtansicht,

Fig. 2

eine Explosionsdarstellung der Austragvorrichtung der Fig. 1,

Fig. 3 und Fig. 4

die Austragvorrichtung der Fig. 1 in zwei geschnittenen Darstellungen,

Fig. 5a bis 5d

die Pumpvorrichtung der Austragvorrichtung der Fig. 1 in verschiedenen Stadien während des Pumpvorgangs ,

Fig. 6a und 6b

ein Set aus einer herkömmlichen Austragvorrichtung mit einem erfindungsgemäßen Aufsatz und

Fig. 7

eine zur Gestaltung gemäß der Ausführungsform der Fig. 1 bis 5 alternative Variante der Förderbaugruppe

Other aspects and advantages of the invention will become apparent from the claims and from the following description of two preferred embodiments of the invention, which are explained below with reference to the figures. Showing:

Fig. 1

a discharge device according to the invention in an overall view,

Fig. 2

an exploded view of the discharge of the Fig. 1 .

FIG. 3 and FIG. 4

the discharge of the Fig. 1 in two cut representations,

Fig. 5a to 5d

the pumping device of the discharge of the Fig. 1 at various stages during the pumping process,

Fig. 6a and 6b

a set of a conventional discharge device with an attachment according to the invention and

Fig. 7

a for designing according to the embodiment of the Fig. 1 to 5 alternative variant of the conveyor assembly

Detailed description of the embodiments

Fig. 1 shows a discharge device according to the invention in an overall view.

This discharge device has a medium reservoir 10, to which an assembly 20 is coupled, which in the manner explained below comprises the components which are required for discharging the medium from the medium reservoir 10. The assembly 20 has a housing, on whose front side an outlet opening 23 is provided for the medium. On both sides of the outlet opening 23 rolling members 30 are provided in openings 21 of the housing, which are mounted rotatably about a common axis of rotation 1 on the housing. In the manner explained below, a pump device within the housing is operatively coupled to the roll-off members 30 such that rotation of the roll-off members 30 about the roll-off member rotation axis 1 causes discharge of the medium through the outlet opening 23, regardless of the orientation of the discharge device. To protect the discharge opening 23 when not in use, a closure flap 22 is provided, which is attached by means of a film hinge on the housing.

The illustrated dispensing device is provided for applying media to the skin of a user. It may be both cosmetic and pharmaceutical media. For use, the discharge device is pressed with its open end flap on the skin of the user with open flap 22 and then moved in one of the illustrated by the arrows 2 directions, in which case unwind the rolling members 30 on the skin of the user and thereby cause the discharge process.

Fig. 2 shows the assembly 20 and the media storage 10 in an exploded view. The housing of the assembly 20 comprises two housing components 24, 26, which are firmly connected to each other by means of connecting means 25. Together, the housing components 24, 26 define a receiving space 27 in which the components described below are arranged.

These arranged in the receiving space 27 components initially include the previously mentioned Abrollglieder 30, which are mounted by means of a shaft member 32 and a receiving bore 26a for the axle 32 on the upper housing member 26 so that they through the openings 21 in the housing part 26 therethrough for the intended use according to protrude outside.

Further, in the receiving space 27, components 41, 42, 43, 45, 46 of a pump device 40 are included, the pump cylinder of which is formed by a cylinder section 47 attached to the housing component 24. The components 41, 42, 43 form the piston of the pump device 40. The components 45, 46 and the cylinder portion 47 form the piston cylinder together with inlet valve.

The medium reservoir 10 is formed in two parts and has a tow piston 12 used.

In composite form, the components in the 3 and 4 shown.

In these figures, the medium reservoir 10 is shown in dashed lines. It can be seen that this includes the drag piston 12, which is displaced in the direction of arrow 3 upwards. The region 14 above the drag piston 12 is filled with the medium to be discharged. In the course of the suction of the medium by the pumping device 40, the amount of media in the region 14 is reduced, so that due to the tightness of this region against incoming air of the tow piston 12 in the direction of the arrow 3 moves upward.

From the Fig. 3 the piston of the pumping device 40 can be seen in the assembled form. The component 41 is hollow-cylindrical and has at its lower and at its upper end support portions 41 b, 41 c, which are displaceable in hollow cylindrical regions of the housing components 24, 26 along the pumping direction 4. In the hollow cylindrical member 41, the formed as a piston core member 42 is inserted and latched from below, wherein the locking portion 42a is formed in a manner not shown so that despite the inserted piston core 42 medium can flow into the hollow cylindrical member 41.

On the piston core 42 made of an elastic material piston sleeve 43 is pushed, which is compared to the composite of the piston core 42 and the component 41 slidably limited to form an exhaust valve on the outside is the piston sleeve 43 sealingly against the inner wall of the cylinder portion 47 and defines a cylindrical pumping chamber 44 upwards.

A homogenization chamber 49 is bounded by the upper end 41 b and the outlet opening 23. The purpose of this homogenization chamber is described below with reference to Fig. 5a to 5d still explained.

The lower end of the pumping device 40 is formed by an inlet opening 48, which is closed during a discharge operation of the valve ball 45, which is pressed by an elastically deflectable arm of the pressed-in the lower end of the cylinder portion 47 member 46 in its closed position.

On the hollow cylindrical member 41 are in the Fig. 2 well-known extensions 41 a provided. These extensions 41 a protrude, as in Fig. 4 shown, each in a guide track 30a of the rolling members 30 inside. How out Fig. 2 it can be seen that these guide tracks 30a surround the Abrollglied rotation axis 1 of the rolling members 30 at a non-constant distance. As a result, the extensions 41a, which are only movable together with the component 41 in the pumping direction 4 in the pumping direction 4, are alternately moved upwards and downwards in the course of a rotational movement of the unwinding members 30. Together with the projections 41 a while the entire piston 41, 42, 43 is placed in a lifting movement and thus causes a discharge of the medium. This is based on the Fig. 5a to 5d explained in detail.

The Fig. 5a shows an initial state in which the piston 41, 42, 43 is in its upper end position, since the projections 41 a engage at this time in the part of the guide track 30 a, which is the Abrollglied axis of rotation 1 closest. Assuming that the pumping chamber 44 is already filled with medium at this time, continued movement of the unwinding member 30 in the direction of Clockwise, indicated by arrow 5, to the fact that the piston 41, 42, 43 is pressed in the direction of arrow 4a down. Due to the depressed in the valve seat valve ball 45, the medium from the pumping chamber 44 can not escape down. Instead, it leads to a forced displacement of the piston sleeve 43 relative to the other piston components 41, 42 due to the incompressibility of the liquid medium can flow along the arrow 6 past the piston core 42 into the designed as a hollow body member 41 and be discharged through the connection with the outlet opening 23 therethrough. In this case, however, only a part of the medium is discharged, since the homogenization chamber 49 simultaneously undergoes an increase in volume due to the displacement of the component 41 downwards and therefore temporarily stores a portion of the medium conveyed by the pump 40.

The continued movement of the rolling member 30 clockwise also causes the continued discharge of the medium until the piston 41, 42, 43 has reached its lower end position, the in Fig. 5c is shown.

A starting from this continued movement of the rolling member 30 in the clockwise direction leads to a reversal of direction and a lifting of the piston 41, 42, 43 in the direction of the arrow 4b. Since the frictional forces between the piston sleeve 43 and the wall of the cylinder portion 47 are greater than between the piston sleeve 43 and the other piston components 41, 42, the piston sleeve 43 moves back in the course of this return stroke against the components 41, 42 and seals it 42b marked point with the piston core 42, so that in the course of the return stroke, no air through the outlet port 23 pass into the pumping chamber 44 can. As a result, a negative pressure forms in the pumping chamber 44 during the return stroke, which causes the valve ball 45 to lift out of its valve seat and subsequently to draw in medium from the region 14 of the medium reservoir 10 into the pumping chamber 44 along the arrow 7. This suction of the medium is over, as soon as the upper limit of the Fig. 5a was achieved. Once this is the case, the inlet valve closes again by pushing the ball 45 back into its valve seat. Continued movement of the unwinding member 30 in the clockwise direction thus leads to a renewed discharge of the medium from the pumping chamber 44.

During the return stroke, ie when passing from the state of the Fig. 5c until the state of Fig. 5a , no medium is discharged from the pumping chamber 44. However, in this phase, the component 41 is displaced upward, so that there is a reduction in volume in the homogenization chamber 49. In this case, the previously temporarily stored medium in this homogenization chamber 49 is discharged in part. Thus, by the staggered volume reductions in the pumping chamber 44 and the homogenization chamber 49 ensures a largely continuous medium discharge.

The dispensing device shown, the application of pharmaceutical or cosmetic liquids on the skin of a user is very easy, since the user must carry the discharge only under slight contact pressure on the skin. This causes a pumping operation of the pumping device 40. Since the medium reservoir 10 is formed with a drag piston 12 and thus always medium is present at the inlet 48 of the pumping device 40, it is also not to be feared that only air is sucked in by the pumping device 40. It therefore does not depend on the correct orientation of the discharge when the medium.

The Fig. 6a and 6b show an alternative design. In this alternative design, a conventional discharge device 150 is used, which is supplemented by an attachment 120 according to the invention.

The conventional discharge device 150 has a medium reservoir 152. Furthermore, it comprises an internal and not shown pumping device. It has an actuating portion 154 with an outlet tube 156. The pumping device, not shown, can be actuated by this actuating portion 154 is pressed together with the outlet tube 156 in the direction of the arrow 4a down.

This known per se discharge device is supplemented by the article 120. The attachment 120 with two housing parts 124, 126 is snapped into a corresponding groove 158 of the discharge device 150 by means of a snap-action device 124a. The coupled state is in the Fig. 6b shown.

In this coupled state, an actuating portion 141 of the attachment 120 designed as a hollow body rests on the actuating region 154 of the discharge device 150 and in this case comprises its outlet tube 156.

The operating portion 141 is formed similar to the piston member 41 of the embodiment of Fig. 1 to 5 , In the same way as described there, it has extensions 141a, which engage in a guide groove 130a of two rolling members 130 of the attachment 120. A rolling of the rolling members 130 about the Abrollglied axis of rotation 1 thus results in the article 120 of the embodiment of Fig. 6a and 6b to a translational vertical displacement of the component 141, wherein thereby in the coupled state of the actuating portion 154 and the outlet tube 156 of the discharge 150 in a lifting movement be offset in the direction of arrow 4, which leads to a discharge process. The medium discharged thereby through the outlet pipe 156 penetrates at the lower end 141 b into the hollow cylindrical member 142 and leaves it at its upper end 141 c, to be subsequently discharged via the outlet opening 123.

The design of the Fig. 6a and 6b makes it possible to achieve the above-described advantageous Austragart also with conventional discharge devices, without having to be specially adapted for this purpose. You just have to have a way to dock the essay 120.

Fig. 7 shows an assembly 220, the alternative to the assembly 20 of the Fig. 1 to 5 Can be used. These are distinguished by the fact that instead of the piston pump device 40, a hose pumping device 240 is used. This peristaltic pumping device 240 has a pumping wheel 241, around which a pump hose 244 is connected, which connects an inlet 248 of the peristaltic pumping device 240 to an outlet opening 223. On the side facing away from the pump wheel 241, the pump hose 244 bears against a circular support surface 245.

The pumping wheel 241 has axially on both sides two rolling members 230, which are rotatably connected to the pumping wheel 241.

When these rolling members 230 roll in the manner described above, for example, on a skin area, simultaneously rotates the impeller 241 at the same rotational speed. Outer projections 242 on impeller 241 thereby the tube 244 is divided by compression into individual chambers 244a, 244b, the contents of which is pressed by the extensions 242 in the direction of the outlet opening 223.

This design of the conveyor assembly 220 with a hose pump 240 allows a particularly simple and inexpensive construction of a discharge device according to the invention and an attachment according to the invention.

Claims (14)

Discharge device for a medium with a housing (24, 26), - An outlet opening (23, 223) for the medium and a pump device (40, 240) for conveying the medium from a medium reservoir (10) to the outlet opening (23), wherein the pumping means (40; 240) comprises at least one movable first pumping member (41, 42, 43; 241) which, by relative movement relative to the housing (24, 26), provides delivery from the medium reservoir (10) to the outlet port (23; 223). causes, characterized in that
at least one about a Abrollglied axis of rotation (1) rotatably mounted on the housing (24, 26) mounted Abrollglied (30; 230), which - At least partially freely accessible on an outer side of the housing (24, 26) is arranged and coupled to the pumping device (40; 240) via a coupling mechanism (30a, 41a) such that rotational movement of the unrolling member (30; 230) causes movement of the first pumping member (41, 42, 43; 241) and thereby conveyance of medium effected by means of the pumping device (40; 240). Discharge device according to claim 1,
characterized in that
the pump device (40; 240) is arranged between a medium store (10) on the one hand and the outlet opening (23; 223) on the other hand. Discharge device according to one of the preceding claims,
characterized in that
the first pump member (241) is rotatably formed with respect to the housing. Discharge device according to one of claims 1 or 2,
characterized in that
the first pump member (41, 42, 43) is designed to be translationally movable relative to the housing (24, 26) and / or to a second pump member (46, 47) of the pump device (40). Discharge device according to claim 4,
characterized in that - The pump device with the first and the second pump member are mounted together pivotable about a first pivot axis on the housing and - The first pump member is pivotally mounted about a abrollgliedseitig stationary second pivot axis on the rolling member. Discharge device according to claim 4,
characterized in that
the first pump member (41, 42, 43) along a housing-fixed movement path (4) relative to the housing (24, 26) is guided translationally movable and by means of a slotted guide (30a, 41 a) with the roll-off member (30) is operatively connected, wherein the Slotted guide (30a, 41 a) preferably - A guide track (30a) rotatable about a guide track rotation axis (1) and surrounding the guide track rotation axis (30) on the roll-off member (30) or a rotary member operatively connected to the roll-off member, which is spaced from the guide track rotation axis (1) , and - An extension (41 a) which is attached to the first pump member (41, 42, 43) and which engages in the guide track (30 a). Discharge device according to one of the preceding claims,
characterized in that
at least two pumping devices are provided, wherein the unwinding member is coupled via the coupling mechanism in such a way with the two pumping devices, that a rotational movement of the Abrollgliedes temporally staggered medium conveyances effected by the pumping devices. Attachment (120) for use with a dispenser (150), said dispenser a housing, a media store (152), an outlet opening (156), - A pumping device for conveying medium from the medium reservoir (152) to the outlet opening (156) and a translationally movable actuating region (154) relative to the housing, by means of the translatory displacement of which the pumping device can be actuated, includes,
characterized in that
the essay (120) a housing (124, 126) which is designed for detachable coupling to the housing of the discharge device, - A about an axis of rotation (1) rotatably mounted on the housing (124, 126) of the attachment (120) mounted rolling member (130) which at least partially freely accessible on an outer side the housing (124, 126) of the attachment (120) is arranged, - a translationally guided relative to the housing (124, 126) of the attachment (120) movable actuating portion (141), which is adapted, in a coupling state, in which the attachment (120) is coupled to the discharge device (150) on Operating range (154) of the discharge device (150) abut, and - Has a coupling mechanism (130 a, 141 a) which is coupled to the actuating portion (141) such that a rotational movement of the Abrollgliedes (130) causes a translational lifting movement of the actuating portion (141). Attachment according to claim 8,
characterized in that
the attachment (120) has a connection channel which connects an outlet opening (123) provided on the attachment with an inlet opening (141b) provided on the attachment, the inlet opening (141b) being arranged on the attachment (120) in such a way that it is in coupling with the inlet Outlet opening (156) of the discharge device (150) is connected. Attachment according to claim 8 or 9,
marked by
the coupling mechanism (130a, 141a) has a slotted guide (130a, 141a), this slotted guide (130a, 141a) preferably - A guide track (130a) rotatable about a guide track rotation axis (1) and surrounding the guide track rotation axis (1) on the unwinding member (130) or a member operatively connected thereto A rotary member which is spaced from the guide track rotation axis (1) varies, and - An extension (141 a) which is mounted on the actuating portion (141) and which engages in the guide track (130 a). Discharge device or attachment according to one of the preceding claims,
characterized in that
two roll-off members (30; 130; 230) rotatable about an identical roll-off member rotation axis (1), the discharge opening (23; 123; 223) of the discharge device (120) being located between the roll-off members (30; 130; 230) is. Discharge device or attachment according to one of the preceding claims, characterized in that
In the region of the outlet opening of the discharge device or of the attachment, a pressure-dependent opening outlet valve is provided. Discharge device or attachment according to one of the preceding claims
characterized in that
the at least one unwinding element is designed as a massage roller with a plurality of protruding projections in the radial direction. Set of an attachment (120) according to one of claims 8 to 13 and a discharge device (150) with a housing, a media store (152), an outlet opening (156), - A pumping device for conveying medium from the medium reservoir (152) to the outlet opening (156) and a translationally movable actuating region (154) relative to the housing, by means of the translatory displacement of which the pumping device can be actuated, in which - The attachment (120) is adapted to the discharge device, that the housing (124, 126) of the attachment (120) to the housing of the discharge device (150) can be coupled, and - In the coupled state of the actuating portion (141) of the attachment (120) on the actuating portion (154) of the discharge device (150) is applied.

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