EP0923416A1 - Pompe pour l'extraction dosee de substances liquides, du type gel ou visqueuses - Google Patents

Pompe pour l'extraction dosee de substances liquides, du type gel ou visqueuses

Info

Publication number
EP0923416A1
EP0923416A1 EP98936414A EP98936414A EP0923416A1 EP 0923416 A1 EP0923416 A1 EP 0923416A1 EP 98936414 A EP98936414 A EP 98936414A EP 98936414 A EP98936414 A EP 98936414A EP 0923416 A1 EP0923416 A1 EP 0923416A1
Authority
EP
European Patent Office
Prior art keywords
pump
valve
pump body
dispenser
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98936414A
Other languages
German (de)
English (en)
Inventor
Georg Wiegner
Hyeong Sook Kim (Morin)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0923416A1 publication Critical patent/EP0923416A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0024—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a permanently displaceable pressurising member that remain in position unless actuated, e.g. lead-screw or ratchet mechanisms, toothpaste tube twisting or rolling devices
    • A46B11/0027—Lead-screw mechanisms
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0055—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a reciprocating piston or plunger acting as the pressurising means
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0058—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a metered dosage
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0038—Inner container disposed in an outer shell or outer casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0094—Containers having an external wall formed as, or with, a diaphragm or the like which is deformed to expel the contents
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • A45D2200/054—Means for supplying liquid to the outlet of the container
    • A45D2200/056—Reciprocating pumps, i.e. with variable volume chamber wherein pressure and vacuum are alternately generated
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container

Definitions

  • the invention relates to a pump for the metered discharge of liquid, gel-like or viscous substances from a container according to the preamble of claim 1 and a dispenser with such a pump.
  • pumps for the delivery of lotions, creams, shampoos, toothpastes, perfumes, aftershaves etc. are widely used. These are generally piston pumps. Positive displacement pumps are also used for toothpastes. Displacement pumps have the advantage over piston pumps that they contain far fewer components and are less sensitive to abrasion.
  • the pump body which delimits a displacement space has a shape which, after compression, moves back into the starting position due to its own resilient elasticity and draws the substance contained in a container through the vacuum generated in the process.
  • Known pump bodies are designed as an elastic ball, dome-like body or bellows.
  • a dispenser for flowable media is known with an elastically returning crimping head arranged on a dispenser housing, which has a valve mouthpiece opening and in whose crimping head bottom an inlet valve is provided, at which an intake hose ends.
  • the valve mouthpiece opening of the squeeze head consists of lips that firmly press against one another and close the mouthpiece opening.
  • the crimping head itself has a bellows-like structure. A reliable closing of the valve mouthpiece opening requires permanent resilience of the material used.
  • a filling toothbrush is known from DE 36 03 475 C1, in the toothbrush handle of which there is a space for tooth cleaning agents and whose toothbrush head has a channel which leads from the space to an outlet opening in the region of the toothbrush bristles.
  • an actuating member is provided for actuating a pump device which is arranged between the space and the channel and which has a valve, the closing direction of which faces the storage space.
  • This Pupei ⁇ cardi is designed as a piston pump that conveys tooth cleaning agent into the channel by means of a piston rod. Piston pumps of this type are susceptible to wear and require many components.
  • the object of the invention is therefore to provide a pump for the metered discharge of liquid, gel-like or viscous substances from a container according to the preamble of claim 1, which has a simple structure and is self-priming.
  • the problem of self-priming is namely primarily a problem of the exhaust valve, since it must be ensured that air is not drawn in through the exhaust valve when the vacuum is built up. Of course, you want to save the cost of a spring-loaded valve.
  • the outlet valve is not only tightly closing, but also the pump is self-priming, because the valve disc, which is convex in the direction of conveyance, i.e. curved outwards, has a valve seal in the form of a lip seal Notch opens slightly in the conveying direction, ie to the outside, but closes more firmly the more pressure is exerted in the opposite direction. So when the compressed pump body builds up vacuum, the suction created on the valve plate will compress the incision and thus the lip seal completely airtight. The substance contained in a container, i.e. the product mass can be sucked out of the container.
  • the pump body If, on the other hand, the pump body is compressed, the substance sucked into a displacement space of the pump body can be discharged through the automatically opening incision.
  • the small curvature outwards gives the outlet valve a tendency to open when the pressure in the displacement space is increased.
  • the closing function of the exhaust valve is so secure that an air vacuum is fully maintained even over several days. For an out valve valve otherwise necessary valve seats are completely eliminated.
  • the exhaust valve tires far less quickly than conventional valves and is therefore durable.
  • the incision in the valve plate is preferably arranged in the center, so that the closing forces act as evenly as possible on the lip seal.
  • the size of the valve plate is preferably adapted to the length of the lip seal, so that the incision then extends essentially over the width of the valve plate.
  • the pump body preferably comprises a neck-like or chimney-like pump outlet which has the outlet valve at its free end, as a result of which a sealing guide is provided for an arrangement in an output channel of an attachable dispenser head.
  • valve plate according to claim 6 is preferred, since this increases the response speed, so it is as slow as possible.
  • the pump body shapes according to claims 7 to 10 ensure a high resilience resilience due to shape.
  • An existing arch force leads to the fact that a compressed pump body spontaneously stands up again when unloaded.
  • the higher wall thickness in the middle and lower part ensures that when the middle and lower displacement chamber are emptied, the strong restoring force there - due to the higher wall thickness - causes the pump body to snap back spontaneously to the initial position and thereby entrains the weaker upper part.
  • a weak elasticity of an upper part of the pump body can thus be desirable in order to initially reduce the pressing pressure required to actuate the dispenser.
  • the pump body can be provided with an inlet valve according to claims 15 and 16, as is usual in connection with airless and riser dispensers. Flutter valves have the advantage of closing automatically and without spring loading. A particularly preferred inlet valve is mentioned in claims 17 and 18, since it is much cheaper to manufacture, since only in one piece and without assembly costs.
  • the pump body also has the advantage that its dimensions can be selected as a function of the desired discharge amount during a dispenser stroke. A metered discharge of certain amounts of substance is possible in a simple manner. Preferred dosage amounts are in the range between 10 mcl and 1000 mcl.
  • the pump body is compressed in a discharge device, in particular a dispenser, preferably by means of an actuating element which centrally distributes the pump body with a circumferentially distributed one Pressure applied.
  • a discharge device in particular a dispenser
  • an actuating element which centrally distributes the pump body with a circumferentially distributed one Pressure applied.
  • the pump body is designed like a mandrel or dome and has a neck-like or chimney-like exit process, it should be avoided that the pressure is exerted centrally on the neck-like or chimney-like exit process.
  • Such a pump body tends to turn inside out only when the pressure is applied centrally, so that the pump body empties itself only incompletely. The spring restoring force from this inverted state is only slight.
  • the dispenser and thus the actuating element acting on the pump body can be actuated by finger pressure via an actuation button or via a dispenser head which can be displaced axially relative to the pump body.
  • the pump can be installed in any discharge device. One area of application is the dispensers for the substances of the cosmetic industry mentioned at the beginning.
  • the pump can also be integrated in a manual or electric toothbrush.
  • FIG. 1 schematically shows a longitudinal section of a dispenser system with container and with a pump according to a first embodiment, airless with follower piston,
  • FIG. 2 schematically shows a longitudinal section of a dispenser system with a container and with a pump according to a second exemplary embodiment, with a riser pipe,
  • FIG. 3 schematically shows a longitudinal section of a dispenser head with a pump according to FIG. 1 in the rest position
  • FIG. 4 schematically shows a longitudinal section of a dispenser head according to FIG. 1 in a working position
  • FIG. 6 schematically shows a longitudinal section of a pump according to FIG. 5,
  • Fig. 7 shows schematically a longitudinal section of an inlet valve of the pump according to Fig. 1 to 4, flutter valve
  • FIG. 8 schematically shows a longitudinal section of a further exemplary embodiment of an inlet valve, flutter valve with valve cage,
  • FIGS. 5 and 6 schematically shows a longitudinal section of a pump according to FIGS. 5 and 6 with a further exemplary embodiment of an inlet valve with a lip seal
  • FIGS. 9 and 10 schematically shows a longitudinal section of the inlet valve of the pump according to FIGS. 9 and 10, 12 schematically shows a longitudinal section of an actuation button according to a further exemplary embodiment of the dispenser head with a recessed cruciform pressure plate,
  • FIG. 13 schematically shows a longitudinal section of a dispenser head with a pump in the activated state according to a further exemplary embodiment with a cruciform pressure plate
  • FIG. 15 shows a pump housing according to FIG. 13 in a top view from above
  • FIG. 17 schematically shows a bottom view of the toothbrush according to FIG. 16.
  • the displacement pump 2 comprises a compressible pump body 3 made of a flexible and elastic material.
  • the pump body 3 has an outlet valve 4 which opens at excess pressure and which opens and closes with respect to an outlet channel 5 of a dispenser head 6, so that the displacement pump 2 delivers into this outlet channel 5.
  • the displacement pump 2 is installed in a pump housing 7, which is detachably attached to an upper edge of the container 1.
  • a screw cap is provided for releasable attachment.
  • Alternative closures can be used, such as a bayonet or snap lock or a crimp variant with ferrule.
  • the pump body 3 is arranged tightly above the opening of the container 1 by means of the pump housing 7.
  • the pump body 3 can have a sealing disk 8 on the bottom side.
  • an inlet valve 9 can be assigned to the pump body 3 on the inlet side, which opens and closes a displacement chamber 10 on the inlet side. Such an inlet valve 9 can be dispensed with if a follower piston 11 provided in the container 1 is secured against being pushed back by means of a pawl (not shown).
  • the pump housing 7 comprises an axially extending pump housing guide sleeve 12, which has a thread on the bottom for fastening to the container 1.
  • This pump housing guide sleeve 12 leaves sufficient space to the right and left of the pump body 3 so that it can be pressed together like a disk, as shown for example in FIG.
  • the pump housing 7 also guides the dispenser head 6, which is axially displaceable relative to the pump housing 7, in which the dispenser head 6 is at least partially displaceable with a dispenser head guide sleeve 17 in the pump housing 7, so that an actuating plunger 13 provided on the dispenser head 6 is by means of a actuating element 14 provided thereon can compress the pump body 3.
  • the dispenser head 6 in the pump housing guide sleeve 12 can have one or more springs 15 (FIG. 15) which cooperate with grooves 16 in a dispenser head guide sleeve 17.
  • springs 15 FIG. 15
  • tongue and groove can also be reversed.
  • FIG. 1 works with an automatically following follower piston 11 and is therefore a so-called airless dispenser.
  • FIGS. 3 and 4 show the dispenser head 6 together with the pump housing 7 and the positive displacement pump 2 on the one hand in the starting position or deactivated position (FIG. 3) and in an activated position (FIG. 4) in which the pump body 3 is at least partially compressed.
  • the design of the positive displacement pump 2 is described in detail below, in particular with reference to FIGS. 5 to 11.
  • the dispenser shown in FIG. 2 differs from that in FIG. 1 illustrated and described dispenser only in that it has a container 1 with a fixed bottom 20 and a riser pipe 19 is provided which connects to the inlet valve 9 using a riser pipe adapter 18.
  • FIGS. 1 to 4 each show a pump installed in a dispenser with a pump body 3, in which the outlet valve 4 is designed as a valve plate 21 (FIGS. 5, 6) which closes the pump body 3 on the head side and is integrally formed therewith.
  • the valve disk 21 is convex in the conveying direction, i.e. curved outwards, and has an incision 22 (FIG. 5) forming the valve outlet in the form of a lip seal.
  • FIGS. 5 and 6 show the outlet valve 4 in connection with a special shape of the pump body 3 with different wall thicknesses.
  • the valve plate 21 preferably has a centrally arranged incision.
  • the incision 22 also preferably extends essentially over a width of the valve plate 21.
  • the valve plate 21 is preferably thin in the form of a membrane.
  • the valve disk 21 also preferably has only a flat degree of curvature.
  • the thickness of the valve plate 21 is in a range of approximately 0.5 to 1 mm for valve plate sizes of 3 to 6 mm. The thickness of the valve plate 21 can be individually adjusted for the substance to be conveyed.
  • the incision 22 is usually produced by making a cut through the center of the valve plate 21. The two cut sides form lips that are close together when the pump is sucking and open by spacing when the pump body empties under pressure.
  • the pump body 3 has a shape with a shape-related spring restoring force from a compressed state to an original state.
  • the pump body 3 is designed like a mandrel or dome with a circular basic shape. Alternatively, an oval basic shape can also be provided.
  • the pump body 3 also tapers forward preferably on the head side.
  • the pump body 3 can end on the head side in a neck-like or chimney-like pump outlet 23, on which the valve disk 21 closing the pump body 3 on the head side is then formed.
  • Such a pump outlet 23 provides a sealing guide for an engagement position with a discharge device, as can be seen from FIGS. 1 to 4.
  • the sealing guide can also be provided by a sealing ring (not shown) provided on the pump body 3, which surrounds the valve disk 21. A tight fit of the pump body 3 in the output channel 5 is thus ensured.
  • the mandrel or dome-like pump body 3 can be designed with different wall thicknesses.
  • the wall thickness is preferably smaller in an upper section than in a middle and lower section.
  • the upper part can only have half the thickness of the middle and lower part.
  • the valve disk 21 can have a round or angular shape.
  • a further form of the pump body 3 mentioned by way of example is that of a pump bellows.
  • Thermoplastic polyester elastomers are preferred as the material for the pump 2, in particular styrene-butylene styrene (styrene-butadiene-styrene (SBS)), styrene-ethylene-butylene styrene (styrene-ethylene-butylene-styrene (SEBS)) or block copolymer.
  • SBS styrene-butylene styrene
  • SEBS styrene-ethylene-butylene styrene
  • block copolymer styrene-ethylene-butylene styrene
  • Other preferred flexible and elastic materials are natural rubber or silicone rubber with a Shore hardness of A 30 to 80, in particular A 60 to A 80.
  • the inlet valve 9 can be formed by a flutter valve in which, according to FIG. 7, a flap valve 24 is fixed to a sealing disk 26 via a weld / adhesive connection 25.
  • An alternative embodiment of the inlet valve 9 is shown in FIG. 8, where the flap valve 24 of a flap valve is arranged in a valve disc cage 27 of a sealing disc 28.
  • a further embodiment of the inlet valve 9 is shown in FIGS. 9 to 11.
  • the inlet valve 9 is formed by a valve plate 29 which closes an inlet of the pump body 3 and which is convex in the conveying direction and has an incision 30 which forms the valve inlet in the form of a lip seal.
  • the valve disk 29 preferably has a circumferential reinforcement 31 which runs on the edge side of the displacement space 10.
  • the dimensions of the pump body 3 can be selected depending on the desired dosing amounts for substance amounts from 10 mcl to 1000 mcl, in particular 50 mcl to 1000 mcl.
  • the actuating element 14 shown in FIGS. 1 to 4 is designed such that when the pump is actuated, a circumferentially distributed pressure is exerted on an upper side or the side walls of the pump body 3 extending laterally of the actuating plunger 13.
  • the actuating element 14 here is a pressure disk which compresses the pump body 3 in a disk-like manner when the dispenser head 6 is pressed down.
  • the actuating element 14 is a pressure distributor plate integrally integrated in the dispenser head 6 with a cross-shaped pressure element 40.
  • the positive displacement pump 2 described above can be installed in a large number of discharge devices.
  • the cosmetic dispensers described above are only one application.
  • FIGS. 16 and 17 show a toothbrush in which the pump 2 is integrated.
  • the pump 2 feeds here into an output channel 33 of a toothbrush head 32, which can be designed as an interchangeable attachment.
  • the pump 2 can be used together with the container 1 as a cartridge in a hollow toothbrush handle 34.
  • a bottom-side actuation button 36 can be provided can be fastened via a screw cap 37.
  • the displacement pump 2 sits tightly with its outlet valve 4 in a toothbrush neck 39, on which the actuating element 14 is provided in an integrated manner for compressing the pump body 3.
  • the product located in the displacement space 10 of the displacement pump 2 is pressed out via the outlet valve 4 into the discharge channel 33 and conveyed to a toothbrush head 38.
  • the pump body 3 returns to its original shape.
  • the negative pressure then formed therein causes the follower piston 11 to automatically advance in the container 1.
  • the inlet valve 9 of the positive displacement pump 2 closes during the squeezing phase, while the outlet valve opens under pressure.
  • the outlet valve 4 closes and prevents the entry of air into the displacement space 10, while the inlet valve opens under the resulting vacuum and product is conveyed into the pump body. This process can be repeated until the container 1 is emptied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne une pompe servant à l'extraction dosée de substances liquides, du type gel ou visqueuses à partir d'un récipient, qui comprend un corps de pompe pouvant être comprimé pour former un vide d'aspiration, qui est constituée d'un matériau souple et élastique qui refoule par l'intermédiaire d'un clapet de sortie s'ouvrant lors d'une surpression. Afin qu'il soit possible d'obtenir une pompe de ce type qui soit d'une structure simple et de plus auto-aspirante, il est prévu que le clapet de sortie se présente sous la forme d'un disque obturant le corps de pompe du côté de la tête et ne formant qu'une seule pièce avec celui-ci, qui est convexe dans le sens de refoulement et présente une entaille constituant l'orifice de sortie qui se présente sous la forme d'un joint à lèvres.
EP98936414A 1997-07-10 1998-07-08 Pompe pour l'extraction dosee de substances liquides, du type gel ou visqueuses Withdrawn EP0923416A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19729516 1997-07-10
DE19729516A DE19729516C2 (de) 1997-07-10 1997-07-10 Pumpe zum dosierten Austragen von flüssigen, gelartigen oder viskosen Substanzen
PCT/EP1998/004255 WO1999002272A1 (fr) 1997-07-10 1998-07-08 Pompe pour l'extraction dosee de substances liquides, du type gel ou visqueuses

Publications (1)

Publication Number Publication Date
EP0923416A1 true EP0923416A1 (fr) 1999-06-23

Family

ID=7835251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98936414A Withdrawn EP0923416A1 (fr) 1997-07-10 1998-07-08 Pompe pour l'extraction dosee de substances liquides, du type gel ou visqueuses

Country Status (6)

Country Link
US (1) US6406207B1 (fr)
EP (1) EP0923416A1 (fr)
JP (1) JP2001501157A (fr)
CN (1) CN1102867C (fr)
DE (1) DE19729516C2 (fr)
WO (1) WO1999002272A1 (fr)

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Also Published As

Publication number Publication date
US6406207B1 (en) 2002-06-18
CN1102867C (zh) 2003-03-12
DE19729516A1 (de) 1999-01-21
JP2001501157A (ja) 2001-01-30
WO1999002272A1 (fr) 1999-01-21
CN1230907A (zh) 1999-10-06
WO1999002272A9 (fr) 1999-04-15
DE19729516C2 (de) 1999-04-22

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