Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47K—SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
  • A47K5/00—Holders or dispensers for soap, toothpaste or the like
  • A47K5/06—Dispensers for soap
  • A47K5/12—Dispensers for soap for liquid or pasty soap
  • A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
  • A47K5/1208—Dispensers for soap for liquid or pasty soap dispensing dosed volume by means of a flexible dispensing chamber
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47K—SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
  • A47K5/00—Holders or dispensers for soap, toothpaste or the like
  • A47K5/06—Dispensers for soap
  • A47K5/12—Dispensers for soap for liquid or pasty soap
  • A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume

Definitions

• the invention relates to a suction pump, which is in particular designed as a bellows pump and is provided for a donor unit for pasty, foamy or liquid output of a medium, in particular a liquid soap, a skin protection cream or other liquid cleaning or care product for the skin.
• the suction pump has fastening means for its sealing attachment to a storage container for the liquid medium and a pumping force in a pumping compressible elastic, an elastic wall having a pumping chamber on the one hand with the interposition of an outlet valve fluidly with an output means for dispensing a defined amount the medium is directly or indirectly connected and on the other hand with the interposition of an inlet valve with the reservoir fluidly directly or indirectly connected.
• the invention further relates to a dispensing unit for dispensing a medium, in liquid, pasty or foamed form, wherein the medium is provided in particular liquid or pasty in the reservoir.
• These dispenser units have a dispenser housing into which a filling insert can be inserted.
• the filling insert preferably consists of a reservoir produced in the blow molding process and the suction pump attached thereto.
• Such filling inserts are usually inserted into the dispenser housing after opening a housing cover in such a way that the suction pump is gripped with its head region by the insertion movement of a threading device, often in the form of a so-called “catcher clip”, and thus coupled with the actuation device may be a mechanical push button, for example, a so-called “push button”, which is connected via a lever with the threading device.
• a non-contact operation may be provided, in which the user a Sensor triggers, in turn, causes an electric actuator to actuate the suction pump.
• Dispenser units of this type are known from EP 1711094 A.
• bellows pump Suction pumps in the above-mentioned type are also commonly known by the term bellows pump.
• the bellows pumps have a rubber chamber limited by the pumping chamber, which is usually compressed manually by squeezing, whereby the medium located in the pumping chamber is pushed out by this.
• Such bellows pumps have the advantage that they are particularly easy and inexpensive to produce.
• bellows pumps are only moderately suitable for use in dispensing devices, since the only easily implementable by the human hand crimping movement mechanically complicated and additional guide elements can be implemented, for example, a lateral emigration of the discharge opening avoid.
• the use of bellows pumps is problematic when defined a precise amount of a medium must be delivered, since usually the pumping chamber to avoid damage to the elastic wall can not be completely compressed and so the volume of the output of the deformation geometry of the elastic wall dependent can.
• bellows pumps Another disadvantage of the bellows pumps is that in connection with donor units, the onset of the filling inserts, which are formed from a reservoir and the associated suction pump, is difficult to carry out.
• the threading device presses against a functional element of the pump to make the connection between the actuator or the actuator and the pumping means, for example, via the "catcher clamp.”
• This insertion movement must reliably couple the mechanical coupling of the pump with the actuating device or the actuator even if it is not carried out very carefully, otherwise the donor would have no function.
• the object of the invention is therefore with respect to the suction pump to provide a suction pump with an elastic wall, which can be used in a dispensing device, in particular a dispenser unit with the greatest possible freedom from errors at the same time simple and inexpensive construction.
• the dispenser unit it is an object of the invention to provide a dispenser unit in which a suction pump with an elastic pumping chamber can be used as error-free as possible.
• guide means are provided which are arranged such that they are able to suppress migration of the elastic wall of the pump body transversely to the pumping direction during the compression of the pump body.
• the housing has a threading device which is designed and arranged such that by the insertion of the filling insert in the final position of cooperating with the actuator head portion of the suction pump by the threading device is automatically taken during insertion, wherein a bending of the elastic pumping chamber is prevented by the guide means.
• a conventional dispenser this is, for example, the vertical direction
• the reservoir is then hung with the suction pump down into the dispenser housing and the guide means are formed such that, despite the elastic wall, migration in one of the horizontal directions is prevented.
• the pump body can thus be compressed only in the vertical direction, so that even the frictional force when attaching the threading device to a head region of the suction pump can not lead to the head region being displaced in the transverse direction.
• the pumping chamber is formed by the elastic wall and a head and a foot area.
• the foot area is upside down with upside down plenum and has the inlet valve on.
• This inlet valve is designed so that it is capable of sucking medium from the storage container into the pumping chamber during decompression of the pumping chamber and closing it during compression of the pumping chamber.
• the outlet valve is arranged, that releases the medium during compression of the pumping chamber and closes upon decompression of the pumping chamber.
• further functional elements in particular for foaming the medium or for preventing dripping, can be provided.
• Guide means at least on the movable head portion and the foot portion is fixed relative to the dispenser housing.
• the guide means ensure that, relative to the specified foot area, the head area can only be moved in the pump preferred direction.
• the head region of the suction pump may be provided with a flange which protrudes outward in the manner of a flange and which is gripped by the threading device, in particular the catcher clip, when inserted into the dispenser housing
• the head area may itself be dish-shaped or have a dish-shaped section, which is connected, for example, via a spacer to the part of the head area adjoining the elastic wall.
• the guide means can be both internal and external
• the suction pump on a pump body on which the pumping chamber is arranged.
• the pump body can be formed by the foot region, from which the guide means, for example in the form of guide rods, extend in the direction of the head region, where, for example, they can pass through bearing eyes arranged in the head region to form the guide.
• the guide means may also be formed by a wall of the pump body, which is accordion-like after the Art a telescopic pole can be pushed together.
• the head region it is possible for the head region to have a piston-like outwardly projecting edge, which is guided in the preferred pump direction in the pump body which is then executed in the manner of a cylinder, whereby another part of the head region adjoins the actuating device for the piston-like region facing away from the pumping chamber , which protrudes from the cylindrical area in all positions of the head area.
• This can be, for example, a dispensing tube with a plate-like edge protruding laterally in the lower region, to which the threading device can be attached.
• the head region may also have a cylindrical, in the direction of the foot region upwardly projecting wall portion which is connected to a plate-like region, which in turn is connected to the elastic wall of the pumping chamber.
• the cylindrical wall region of the head region in turn, can then be guided either on the pump body or also on the foot region.
• Foot area in this embodiment be designed so that it can be moved to a transport position.
• the height of the cylindrical ring at least equal to the height of the pumping chamber, so that the foot portion can be moved to the upper edge of the ring, so that the entire pumping chamber is disposed within the cylindrical ring.
• An alternative embodiment of a suction pump with transport lock has a foot area which extends like a bell in the direction of the head region, wherein the elastic wall of the pumping chamber is connected to the lower region of the bell-shaped side region of the foot part.
• the entire elastic part of the wall of the pumping chamber can then be turned inside together with the head region, so that the head and foot regions abut each other substantially and the pump is put out of action.
• the threading can be configured so that by Einsetziolo not only an edge of the head part is taken and this is coupled with the actuator, but that at the same time by inserting the transport lock is disabled and the Einfädel Anlagen the first time pushing back of such a large path of the head area causes the elastic wall portion of the Pump chamber is pushed back to the outside.
• Guide means are also arranged inside a pumping chamber.
• the head area may be connected to the foot area via telescopic rod-like guide rods which are arranged inside the elastic wall.
• This guide means may for example be arranged centrally within the pumping chamber, so that the telescopic rod is designed as a hollow rod or tube and has a lateral inlet for the medium to be pumped.
• the medium is then driven first through this lateral entry of the telescopic rod and then through the hollow telescopic rod itself to the outside.
• the valve of the head area can still remain in the actual head area or be arranged in the region of the lateral opening of the telescopic rod.
• further guide rods can be provided in the outer region of the pumping chamber.
• the respective valve is provided with a push rod, which has the valve means, so for example the sealing membrane.
• the push rod is extended beyond the region of the valve means and has, in this extended region, a guide section which is guided by guide means which are arranged on the pump body or, depending on which valve has the leading push rod, on the head region or the foot region ,
• the respective part of the guide preferably bearing eyes, in which the guide portion in Pump preferred direction is movably mounted.
• a further preferred embodiment uses a common push rod for both valves.
• This common push rod is preferably formed as a central, the pumping chamber passing through push rod, wherein on the side of one of the valves, the switching element is fixedly connected to the push rod and on the side of the other valve, the switching element is movably mounted on the push rod.
• the switching element of the valve can be firmly connected to the push rod, while the switching element is movably guided on the side of the inlet valve on the push rod, so that both valves can switch pressure controlled independently.
• the push rod will then extend upon compression of the bellows valve in the reservoir or in an intermediate region arranged between the suction pump and the reservoir.
• the aforementioned embodiment can be prepared, for example, characterized in that the switching element of the inlet valve has a sleeve-like part through which the push rod is guided longitudinally movable.
• the mobility of the switching element may be limited relative to the push rod in both directions by stops, which then at the same time the compression movement of the bellows pump is set at the same time. This can for example avoid damage to the elastic wall material due to excessive deformation.
• the storage of the push rod is preferably realized by the valve seat of one or both valves, ie the inlet valve and the dispensing valve.
• the push rod can also be movably mounted inside or outside the pumping chamber in pump preferred direction to form an (additional) guide.
• the exhaust valve may be provided in all embodiments with a plunger which extends in the direction away from the pumping chamber direction and in the lower region has a plate portion, with the actuator of the dispenser can be coupled. It does not necessarily have to be a plate area, the coupling can also be made via any other mechanical device.
• valve actuation devices into consideration, in particular a mechanical pushbutton or an electric actuator that can be triggered by a sensor.
• the push rod of the outlet valve which extends away from the pumping chamber, is preferably designed as a hollow cylinder, so that the medium can be supplied to the output through this push rod. So here the push rod forms the output channel for the medium.
• an additional seal or an additional valve means in which case about a diaphragm seal comes into consideration.
• the dispenser unit comprises a housing into which the filling insert can be inserted.
• This filling insert comprises, as already described above, the storage container and the suction pump arranged therein.
• the suction pump in turn is designed as a bellows pump and has a head portion which is displaceable in the direction of a foot region for transmitting an actuating force, regardless of whether it is applied via an electric actuator or a "push button", the suction pump having guide means
• the filling insert will be inserted downward with the suction pump down in the housing, so that the pump preferential direction is the vertical direction downwards, that is, output medium directly from the discharge point, for example, to the hand of the user can drip.
• the dispenser unit has a threading device, which in
• This clip is a U-shaped clip with rounded or bent legs which, upon insertion of the filling insert, forms an edge of the movable part of the suction pump, in particular an edge of the suction pump Engage behind the head area, wherein the threading device is in turn functionally coupled to the mechanism of the housing such that a movement of the actuating device causes a movement of the coupled to the threading device edge of the suction pump.
• the elastic pumping chamber is compressed and the medium expelled from this pumping chamber in the pump preferred direction.
• the dispenser unit can have an additional threading aid, which cooperates with a further threading element on the movable part of the suction pump.
• This additional threading aid can bring about the first way of deactivating the transport lock, for example the outward swirling of the elastic wall of the pumping chamber, in which the additional threading element slides along the guide surface of the further threading aid through the insertion movement and thereby the corresponding displacement of the head region into the Operating position causes.
• the additional Einfädel be preceded by the first Einfädel Anlagen in which, for example, the "catcher clip" has very strong bent in the pump preferential leg.
• the suction pump may finally have a drip protection, which is arranged behind the pumping chamber.
• a drip protection may be formed by a membrane seal, which may be formed, for example, de heart valve with several, for example, three sails, the sails are folded together in a closed state to a closed circuit and on the occurrence of a, the medium expelling pressure in the discharge direction be pressed apart.
• the sails are connected to the other sails each facing away from the edges of the wall of the output channel and overlap preferably in the idle state with the respective other edges.
• a drip protection or a similar function can be provided.
• This can be, for example, siphon-like reversals of the flow direction in the output channel or valves or flaps, for example, by a spring loaded in the closing direction and switchable by the pumping pressure to be.
• FIG. 1 is a side view of a dispenser unit according to the invention
• Fig. 2 is a simplified representation of a suction pump according to the invention in section and
• FIG. 3 shows a further embodiment of a suction pump according to the invention.
• FIG. 1 shows a dispenser unit with a dispenser housing 1 which can be filled via a filling insert.
• the filling insert is formed by a suction pump and a reservoir 2, to which the suction pump is attached.
• the suction pump in turn is designed as a bellows pump, which has a head region 3, a foot region 4 and an elastic wall 5 arranged therebetween.
• FIG. 2 shows a first embodiment of the suction pump is shown schematically in an enlarged view.
• This suction pump is designed as a bellows pump and has a head portion 3, which is movably held relative to the dispenser housing 1.
• the head region 3 is connected to the foot region 4 via the elastic wall 5.
• the head portion 3 is additionally guided by guide means 8, wherein the guide means 8 are formed here as an external guide means 8, which are connected on the one hand with the foot region 4 and on the other hand passed through bearing eyes of the head portion 3.
• the guide means 8 are formed here as an external guide means 8, which are connected on the one hand with the foot region 4 and on the other hand passed through bearing eyes of the head portion 3.
• FIG. 3 shows a further embodiment of a bellows valve, in which the guide means 8 are designed as internal guide means 8.
• the bellows pump shown here additionally has a push rod 6, which is formed as a hollow cylinder and has a lateral inlet opening in the region of the pumping chamber.
• a push rod 6 which is formed as a hollow cylinder and has a lateral inlet opening in the region of the pumping chamber.

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• Health & Medical Sciences (AREA)
• Public Health (AREA)
• Reciprocating Pumps (AREA)
• Closures For Containers (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=40599916

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Citations (1)

Family Cites Families (23)

• 2008
  • 2008-02-18 DE DE102008002773A patent/DE102008002773A1/de not_active Withdrawn
• 2009
  • 2009-01-21 US US12/864,035 patent/US20100301070A1/en not_active Abandoned
  • 2009-01-21 EP EP09712427A patent/EP2312982A1/de not_active Withdrawn
  • 2009-01-21 KR KR1020107019653A patent/KR20110008012A/ko not_active Withdrawn
  • 2009-01-21 CN CN2009801014136A patent/CN101917889A/zh active Pending
  • 2009-01-21 WO PCT/EP2009/050616 patent/WO2009103583A1/de not_active Ceased
  • 2009-01-21 CA CA2712442A patent/CA2712442A1/en not_active Abandoned
  • 2009-01-21 AU AU2009216864A patent/AU2009216864A1/en not_active Abandoned
  • 2009-01-21 MX MX2010007931A patent/MX2010007931A/es not_active Application Discontinuation
  • 2009-01-21 RU RU2010139155/12A patent/RU2010139155A/ru not_active Application Discontinuation
  • 2009-01-21 BR BRPI0905689-0A patent/BRPI0905689A2/pt not_active IP Right Cessation
  • 2009-02-18 TW TW098105048A patent/TW201008541A/zh unknown

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