EP0230252B2 - Dispenser for viscous products - Google Patents

Dispenser for viscous products Download PDF

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Publication number
EP0230252B2
EP0230252B2 EP87100326A EP87100326A EP0230252B2 EP 0230252 B2 EP0230252 B2 EP 0230252B2 EP 87100326 A EP87100326 A EP 87100326A EP 87100326 A EP87100326 A EP 87100326A EP 0230252 B2 EP0230252 B2 EP 0230252B2
Authority
EP
European Patent Office
Prior art keywords
container
piston
dispenser according
dispenser
sleeve
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.)
Expired - Lifetime
Application number
EP87100326A
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German (de)
French (fr)
Other versions
EP0230252B1 (en
EP0230252A3 (en
EP0230252A2 (en
Inventor
Joachim Czech
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Individual
Original Assignee
Individual
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Application filed by Individual filed Critical Individual
Priority to AT87100326T priority Critical patent/ATE82927T1/en
Publication of EP0230252A2 publication Critical patent/EP0230252A2/en
Publication of EP0230252A3 publication Critical patent/EP0230252A3/en
Application granted granted Critical
Publication of EP0230252B1 publication Critical patent/EP0230252B1/en
Publication of EP0230252B2 publication Critical patent/EP0230252B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B05B11/1001—Piston pumps
    • 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
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • 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

Definitions

  • the invention relates to a dispenser for pasty products according to the preamble of claim 1.
  • dispensers are known as outpatient storage containers in a variety of applications, e.g. for personal care, in medicine for the application of medication or also in the provision of pasty food in the trade.
  • Such a dispenser is known, for example, from EP-A 0 084 638.
  • the product is provided by an output channel of the delivery piston which can be closed by means of a non-return valve, the delivery piston forming the upper end of the container space which receives the product supply and is closed at the bottom by a follow-up piston.
  • a dispenser for liquid or pasty products in which a head part is inserted into an upper container opening, with a lower valve wall for delimiting a pump chamber in which a delivery piston is slidably received, the piston being held by a Tension spring arranged concentrically to a piston bearing is biased into an upper setting and the pump chamber has a side opening on the bottom side with a flap valve which leads to an output channel formed laterally to the delivery piston arrangement.
  • a dispenser has a relatively complicated structure and therefore cannot be produced in the desired, inexpensive manner.
  • a dispenser of the type mentioned is known from JP-U-51-10134 (A2).
  • a dispenser is limited to compressible containers and is not convenient to use in the desired manner.
  • the return spring arranged in the pump chamber also allows only a slight utilization of the pump chamber volume.
  • a dispenser device which can be screwed onto a tube and has a return spring which is arranged outside the pump chamber and which, arranged between two walls, is supported against a radial projection of the delivery piston is known from JP-U-56-107341.
  • the invention has for its object to improve a dispenser of the type mentioned in such a way that with a relatively simple structure and little assembly effort, a precise and reliable portioned dispensing of the product is made possible with easy handling of the dispenser.
  • the actuation cap combines in an integral design the functions of conveying the pasty product from the container, guiding the product through an output channel to the outside as well as actuating the conveying device and closes the container on the upper side completely tightly to the outside.
  • the hollow cylinder part determines the available pumping chamber and thus essentially the delivery volume per delivery stroke of the delivery piston, acts as a sliding guide for the actuating cap, allows the support of a reset device for the actuating cap and can also have a seat for a closure cap in its connection area with the dispenser container form the donor. It is also advantageously possible to design the cylinder part, at least partially, in one piece with the container, so that the assembly effort in the manufacture of the dispenser is further reduced.
  • the check valve in the end face of the delivery piston in a further embodiment it can be designed in a simple manner in a cup shape and can be accommodated by a snap-in connection on the tube section of the actuating cap.
  • the delivery piston can also be integrally formed in one piece on the relevant part of the pipe section of the actuating cap.
  • the design of the hollow cylinder part according to the invention meets all requirements both on the sliding guide of the delivery piston and on the mounting of the actuating cap and the return spring.
  • a preferably integral design of the outer sleeve as an attachment of the container for sliding guidance and latching of the actuating cap allows both a simple inclusion of the return spring returning the actuating cap to its initial position and also supports the desired reduction in the number of individual parts required for the dispenser.
  • further preferred designs for the formation of the pump chamber on the one hand and for the mechanical mounting of the actuating cap on the other hand are specified.
  • Figure 1 shows in a first embodiment of the invention, the main components of a dispenser 1 for pasty products, such as toothpaste, these main components being a cylindrical container 2, an adjoining head piece 3, a closure cap 4 closing the dispenser and a slidable in the container Trailing pistons 5 are.
  • the head piece 3 in turn consists of the hollow cylinder part 6 and the actuating cap 7.
  • the individual parts of the dispenser 1 consist of injection-molded plastic, preferably of polyethylene or polypropylene, so that the dispenser 1 is light on the one hand and on the other hand an influence on the container 2 of the dispenser 1 filled pasty mass through the material of donor 1 is omitted.
  • the hollow cylinder part 6 of the head piece 3 is set back radially inwards relative to a container jacket, a seat for the closure cap 4 being formed at the same time, which can be placed flush on the container 2, so that the entire dispenser 1 has a uniform, cylindrical outer contour.
  • FIG. 2 is an enlarged illustration of the head piece 3 according to FIG. 1, including the closure cap 4, and which shows the details of this exemplary embodiment better.
  • the container 2 has a shoulder 8 at its upper end, the circumferential surface of which forms a seat surface for the closure cap 4 with a latching recess 9, which engages with this inner recess 10 when the dispenser 1 is closed in this latching recess 9, so that the closure cap 4 is received in alignment with the container 2 without gaps.
  • the shoulder 8 is delimited by an end wall 11 in which an outlet opening 12 is centrally recessed.
  • an outer sleeve 13 which forms a basic element of the hollow cylinder part 6 which axially attaches to the container 2.
  • the diameter of the outer sleeve 13 is smaller than that of the container 2 in order to provide a sufficient radial receiving space for a sliding guide of the actuating cap 7 and to enable the closure cap 4 to be received in the axial extension of the container 2.
  • an inner sleeve 15 is inserted into the outer sleeve 13, which rests with its bottom surface on the end wall 11.
  • the inner sleeve 15 is provided with an outer, circumferential annular shoulder 15a, which corresponds radially to the width of the annular space and ensures that the inner sleeve 15 is firmly seated in the outer sleeve 13.
  • the inner sleeve 15 has a cup-shaped shape, a closing flap 16 being designed as a valve body in a central base region, which covers the outlet opening 12 of the end wall 11 and forms the valve body of a check valve formed in cooperation with the outlet opening 12.
  • the closing flap 16 While maintaining a material connection with the remaining bottom of the inner sleeve 15, the closing flap 16 is preferably partially circumferentially separated from the bottom material of the inner sleeve 15 and hingedly and articulatedly connected to the remaining bottom part of the inner sleeve 15 via a remaining material web. This connection allows the closing flap 16 to pivot on one side if an internal container pressure in the region of the outlet opening 12 is greater than a pressure prevailing above the closing flap 16.
  • the outer sleeve 13 forms, together with the inner sleeve 15, a guiding and holding device for the actuating cap 7, which at the same time forms the conveying device of the dispenser 1.
  • the actuating cap 7 is generally cup-shaped with a bottom portion 17 and an outer one Ring wall 18 on. Within the interior of the actuating cap 7, which is enveloped by the annular wall 18 and the bottom section 17, the latter has a tube section 19 which in turn consists of two sections, an axially and centrally arranged piston support tube 20 and an obtuse-angled angle adjoining it in the bottom area of the actuating cap 7 Distribution pipe 21 is made. On the piston support tube 20, a delivery piston 22 is received, which for this purpose has a hollow cylinder extension 23 axially extending into the actuating cap 7. The delivery piston 22 is dimensioned in its outer diameter such that it is guided in the inner sleeve 15 in a tightly sliding manner.
  • the outer sleeve 13 has an upper and a lower ring projection 25, 26, which form a sliding guide for the ring wall 18 of the actuating cap 7 on the inside thereof on its peripheral surface. With a lower, inwardly facing annular projection 27 of the actuating cap 7, this is locked to the annular projection 25 of the outer sleeve 13, so that the actuating cap 7 is axially slidably, but captively held on the outer sleeve 13 during use of the dispenser 1.
  • the sealed sliding guide of the delivery piston 22 in the inner sleeve 15 forms a pump chamber 24 below an end face 28 of the delivery piston 22 in the direction of the closing flap 16, the size of which depends on the axial position or displacement of the actuating cap 7 and thus of the delivery piston 22.
  • an inlet opening 29 is provided, which is covered inside the piston by a closing flap 30 as a valve body.
  • This closing flap 30 forms a pivotally molded attachment of a valve sleeve 31 inserted into the delivery piston 22 and a valve body of a check valve assigned to the inlet opening 29.
  • the valve sleeve 31 is using the tubular cylinder extension 23 of the delivery piston 22 used in this and the closing flap 29 is held in the bottom area of the valve sleeve 31 via a material web hinge-like.
  • the delivery piston 22 is fastened to the piston support tube 20 via a snap connection.
  • a helical spring 32 is received as a return spring for the actuating cap 7, which is supported on the one hand on the outer annular shoulder of the inner sleeve 15 and on the other hand on the bottom of the actuating cap 7 and this in the absence of an actuating force in the shown in Fig. 2, determined by the ring projections 26 and 27 position.
  • the bottom region 17 of the actuating cap 7 forms on its outside the actuating surface on which the actuating force acts vertically downward for the dispensing of the pasty product from the dispenser 1.
  • the pipe section 19 forms an output channel 33.
  • the bottom region 17 of the actuating cap 7 is designed essentially in a plane inclined to the longitudinal axis of the dispenser 1.
  • the dispenser 1 works as follows: if it is initially assumed that only the container 2 is filled with the pasty mass before the dispenser 1 is actuated for the first time, an axial stroke takes place when the actuating cap 7 is axially depressed while the volume of the pumping chamber 24 is reduced, ie as a result of the pressure increase in the pump chamber 24 when the delivery piston 22 is depressed, the closing cap 30 of the delivery piston 22 pivots upward, so that the inlet opening 29 in the piston end face 28 is opened and air escapes from the pump chamber 24 through the discharge channel 33 to the outside.
  • the actuating cap 7 If the actuating cap 7 is then no longer loaded by an actuating force, the actuating cap 7 slides back up to its starting position under the action of the return spring 23, the pump chamber 24 enlarging again.
  • the resulting vacuum in the pump chamber 24 leads on the one hand to the fact that the closing flap 30 of the delivery piston 22 returns to its starting position and closes the inlet opening 29 and on the other hand the closing flap 16 on the end wall 11 of the container 2 is raised or pivoted and the pasty product is released the container 2 can flow into the pump chamber 24 until a pressure equalization is established between the pump chamber 24 and the interior of the container 2 and the closing flap 16 lowers again onto the outlet opening 12 in the end wall 11.
  • the amount of product dispensed is thus determined according to the extent of the piston movement which conveys the product from the pump chamber 24 through the dispensing channel 33.
  • this in turn returns to its starting position under the influence of the restoring helical spring 32, the resulting negative pressure in the pumping chamber 24 leading to the closing of the closing flap 30 on the piston side. This is supported by the amount of product still located in the discharge channel 33 of the actuating cap 7, which is sucked back through the discharge channel 33 in the direction of the pump chamber 24 when the volume of the pump chamber 24 increases and the closing flap 30 is not yet completely sealed.
  • FIG. 3 differs from that according to FIG. 2 only in that here the use of a valve sleeve 31 in the delivery piston 22 is dispensed with and instead a check valve is formed by a closing body 30 in the inlet opening 29 on the end face 28 of the delivery piston 22 is molded in one piece as an articulated tab on the piston support tube 20 and angled at right angles.
  • a reliable pretensioning of the closing body 30 in the closing direction that is, to close the inlet opening 29 in the end face 28 of the delivery piston 22.
  • the piston support tube 20 can be brought close to an inside of the piston end face, whereby the length of the hollow cylinder extension 23 of the delivery piston 22 can be shortened.
  • a further exemplary embodiment according to FIGS. 4 and 5 differs from the previous ones by a modified mounting of the closing flap 30 of the check valve in the delivery piston 22.
  • the piston support tube 20 has a segment-like reinforced wall area 35, in which a longitudinal slot 36 is formed.
  • a prismatic plastic shaft 37 is partially accommodated in this, with which the closing flap 30 is connected integrally and pivotably via a tab.
  • Figure 6 shows an embodiment of the dispenser 1, which achieves a further reduction in the number of individual parts of the head piece 3 in that the inner sleeve 15 separated from the outer sleeve 13 in the previous embodiments is now combined with the latter to form an integral component of the conveying sleeve 38, the Wall has a U-shaped cross section, so that the coil spring 32 is received and guided between an inner wall 39 and an outer wall 40 of the conveying sleeve 38.
  • the end wall 11 has in one piece a sleeve projection 41, in which the conveying sleeve 38 is held by an interference fit.
  • the design and mounting of the delivery piston 22 on the piston support tube 20 is also modified compared to the exemplary embodiments shown in FIGS. 1 to 5.
  • the piston support tube 20 is provided at its front end with a shoulder 42 which has a larger diameter than the rest of the piston support tube 20, so that on the outer surface an undercut 43 of the support tube 20 is formed, while the inner surface of the piston support tube 20 has a collar in this area.
  • a valve sleeve 31 is again accommodated, which serves on the one hand for pivoting the closing flap 30 of the piston-side check valve and at the same time covers the inner collar of the piston support tube 20, so that the flow resistance for the pasty Mass in this area of the output channel 33 is not increased.
  • the delivery piston 22 is designed so that the hollow cylinder extension 23 forms an integral part of the piston sealing surface and slides together with a front sealing lip of the delivery piston 22 on the inner wall 39 of the delivery sleeve 38.
  • the hollow cylinder extension 23 engages around the extension 42 of the piston support tube 20 and engages with the piston support tube 20 in the region of the undercut 43.
  • the delivery piston 22 can simply be pushed onto the extension 42 and is securely form-fitting on the piston support tube 20 held, wherein a further pushing of the delivery piston 22 is prevented by the valve sleeve 31 or the extension 42.
  • this embodiment has the advantage of a further improved guide stability for the actuating sleeve 7 due to the enlarged piston sealing surface.
  • the outer guidance of the actuating sleeve 7 is achieved independently of this in the same way as in the previous exemplary embodiments by the ring projections 25 and 26, which in this case are formed on the outer wall 40 of the conveying sleeve 38 are.
  • the closing cap 16 of the check valve on the top of the container 2 either forms a separate closing element or is connected to the inner wall 39 of the conveying sleeve 38 via a material tab.
  • the manageability of the dispenser 1 is also improved in this exemplary embodiment in that the bottom region 17 of the actuating cap 7, on which the hand grip for actuating the dispenser 1 takes place, has a double-sided, opposing external inclination, so that an actuating finger is guided into the center of the outer actuating surface and a reliable introduction of the actuating force into the actuating cap 7 is ensured.
  • the dispenser operates in the manner described in connection with FIG. 2.
  • the delivery piston 22 can also be made entirely in one piece with the piston support tube 20, so that the hollow cylinder extension 23 of the delivery piston 22 can be omitted.
  • the closing flap 30 is articulated in one piece and is pivotable on the inside of the piston end face 28.
  • the coil spring 32 can also be designed as a resilient plastic ring and as an injection molded part, as can the other components of the dispenser 1.
  • Modifications in the design of the check valves on the top of the container 2 and in the delivery piston 22 can also be carried out depending on the consistency of the pasty product to be delivered.
  • the dispenser can be used wherever the portioned provision of pasty products is concerned, e.g. for medicinal applications, in cosmetics and personal care, in the household sector and when dispensing pasty foods.

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  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Seeds, Soups, And Other Foods (AREA)
  • Coating Apparatus (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The invention relates to a dispenser for paste-like products which is characterized by a particular simple construction of its dispensing mechanism requiring a reduced number of components. Integrally connected to a supply container of the dispenser is a cylinder body slidably supporting a dispensing piston connected to an actuator cap guided on the cylinder body. The dispensing piston cooperates with the cylinder body to define a pump chamber communicating with the interior of the supply container through a non-return valve. On the other side the bottom portion of the dispensing piston is provided with a non-return valve for establishing communication of the pump chamber with a tubular section carrying the dispensing piston and at the same time acting as an outlet passage for the paste-like product. The tubular section is integrally connected to the actuator cap, the latter being biased towards a rest position by a return spring supported on a fixed counterstop, particularly on the cylinder body.

Description

Die Erfindung betrifft einen Spender für pastöse Produkte nach dem Oberbegriff des Anspruches 1.The invention relates to a dispenser for pasty products according to the preamble of claim 1.

Derartige Spender sind als ambulante Vorratsbehälter in einer Vielzahl von Anwendungsbereichen bekannt, z.B. für die Körperpflege, in der Medizin für die Applikation von Medikamenten oder auch bei der Bereitstellung pastöser Lebensmittel im Handel.Such dispensers are known as outpatient storage containers in a variety of applications, e.g. for personal care, in medicine for the application of medication or also in the provision of pasty food in the trade.

Entsprechend vielgestaltig ist auch die Ausgestaltung der für die Bereitstellung der sehr unterschiedlichen pastösen Massen verwendeten Spender, vor allem in bezug auf ihren unmittelbaren Förder- und Handhabungsmechanismus.The design of the dispensers used for the provision of the very different pasty masses is correspondingly varied, especially with regard to their direct conveying and handling mechanism.

Herkömmliche Spender mit einem Behälter und einem an dessen Oberseite befindlichen Kopfstück, das eine Kolben-Fördereinrichtung und ein Betätigungsorgan für diese Fördereinrichtung enthält, besitzen jedoch den Nachteil einer relativ komplizierten Gestaltung dieses Kopfstückes insbesondere in bezug auf den Fördermechanismus und dessen Verbindung zu einem Ausgabekanal für die pastöse Masse, so daß die Herstellungs- und Montagekosten für diese Teile relative hoch sind und zu einer Verteuerung des Spenders führen, der seine Wettbewerbsfähigkeit zu anderen, z.B. tubenförmigen Vorratsbehältern für pastöse Massen beeinträchtigt.Conventional dispensers with a container and a head piece located on the top thereof, which contains a piston conveyor and an actuating member for this conveyor device, have the disadvantage of a relatively complicated design of this head piece, in particular with regard to the conveyor mechanism and its connection to an output channel for the pasty mass, so that the manufacturing and assembly costs for these parts are relatively high and lead to an increase in the cost of the dispenser, which impairs its competitiveness with other, for example tubular, storage containers for pasty masses.

Ein solcher Spender ist z.B. aus der EP-A 0 084 638 bekannt. Hierbei wird das Produkt durch einen mittels eines Rückschlagventiles verschließbaren Ausgabekanal des Förderkolbens bereitgestellt, wobei der Förderkolben den oberen Abschluß des den Produktvorrat aufnehmenden, bodenseitig durch einen Nachlaufkolben verschlossenen Behälterraumes bildet.Such a dispenser is known, for example, from EP-A 0 084 638. In this case, the product is provided by an output channel of the delivery piston which can be closed by means of a non-return valve, the delivery piston forming the upper end of the container space which receives the product supply and is closed at the bottom by a follow-up piston.

Desweiteren ist aus der US-PS 4485943 ein Spender für flüssige oder pastöse Produkte bekannt, bei denen in eine obere Behälteröffnung ein Kopfteil eingesetzt ist, mit einer unteren Ventilwandung zur Begrenzung eines Pumpraumes, in dem ein Förderkolben gleitbeweglich aufgenommen ist, wobei der Kolben durch eine konzentrisch zu einer Kolbenlagerung angeordnete Zugfeder in eine obere Einstellung vorgespannt ist und die Pumpkammer bodenseitig eine Seitenöffnung mit einem Klappenventil aufweist, das zu einem seitlich zu der Förderkolbenanordnung ausgebildeten Ausgabekanal führt. Ein derartiger Spender ist verhältnismäßig kompliziert aufgebaut und daher nicht in der gewünschten, kostengünstigen Weise herstellbar.Furthermore, from US-PS 4485943 a dispenser for liquid or pasty products is known, in which a head part is inserted into an upper container opening, with a lower valve wall for delimiting a pump chamber in which a delivery piston is slidably received, the piston being held by a Tension spring arranged concentrically to a piston bearing is biased into an upper setting and the pump chamber has a side opening on the bottom side with a flap valve which leads to an output channel formed laterally to the delivery piston arrangement. Such a dispenser has a relatively complicated structure and therefore cannot be produced in the desired, inexpensive manner.

Ein Spender der eingangs genannten Art ist aus der JP-U-51-10134 (A2) bekannt. Ein solcher Spender ist allerdings auf zusammendrückbare Behälter beschränkt und in seiner Bedienung nicht in der erwünschten Weise komfortabel. Auch gestattet die in der Pumpkammer angeordnete Rückstellfeder nur eine geringe Ausnutzung des Pumpkammervolumens.A dispenser of the type mentioned is known from JP-U-51-10134 (A2). However, such a dispenser is limited to compressible containers and is not convenient to use in the desired manner. The return spring arranged in the pump chamber also allows only a slight utilization of the pump chamber volume.

Eine auf eine Tube aufschraubbare Spendervorrichtung mit einer außerhalb der Pumpkammer angeordneten Rückstellfeder, die, zwischen zwei Wänden angeordnet, gegen einen Radialvorsprung des Förderkolbens abgestützt ist, ist aus der JP-U-56-107341 bekannt.A dispenser device which can be screwed onto a tube and has a return spring which is arranged outside the pump chamber and which, arranged between two walls, is supported against a radial projection of the delivery piston is known from JP-U-56-107341.

Der Erfindung liegt die Aufgabe zugrunde, einen Spender der eingangs genannten Art zu verbessern, derart, daß bei verhältnismäßig einfachem Aufbau und geringem Montageaufwand eine präzise und zuverlässige, portionierte Ausspendung des Produktes bei einfacher Handhabbarkeit des Spenders ermöglicht ist.The invention has for its object to improve a dispenser of the type mentioned in such a way that with a relatively simple structure and little assembly effort, a precise and reliable portioned dispensing of the product is made possible with easy handling of the dispenser.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of claim 1.

Grundlegend für die mit dieser Lösung erreichbaren Vorteile im Hinblick auf eine einzelteilarme, montagefreundliche Gestaltung ist der Aufbau des Kopfstückes aus im wesentlichen zwei Hauptteilen, dem Hohlzylinderteil und der an diesem gleitbeweglichen Betätigungskappe, wobei jedes der Hauptteile multifunktional gestaltet ist und sich durch einen robusten Aufbau auszeichnet, der eine hohe Zuverlässigkeit und Langlebigkeit des Spenders sichert. Die Betätigungskappe vereinigt in einer integralen Gestaltung die Funktionen der Förderung des pastösen Produktes aus dem Behälter, die Führung des Produktes durch einen Ausgabekanal nach außen wie auch die Betätigung der Fördereinrichtung und schließt den Behälter an dessen Oberseite vollständig dicht nach außen ab. Das Hohlzylinderteil bestimmt die zur Verfügung stehenden Pumpkammer und damit wesentlich die Fördermenge pro Förderhub des Förderkolbens, ist als Gleitführung für die Betätigungskappe wirksam, gestattet die Abstützung einer Rückstelleinrichtung für die Betätigungskappe und kann in seinem Verbindungsbereich mit dem Behälter des Spenders überdies eine Sitzfläche für eine Verschlußkappe des Spenders bilden. Es ist hierbei auch in vorteilhafter Weise möglich, das Zylinderteil, zumindest partiell, einstückig mit dem Behälter auszuführen, so daß der Montageaufwand bei der Herstellung des Spenders weiter reduziert wird.Fundamental to the advantages that can be achieved with this solution with regard to a design that is low in individual parts and easy to assemble is the construction of the head piece from essentially two main parts, the hollow cylinder part and the sliding actuating cap on this, each of the main parts being designed multifunctionally and being characterized by a robust construction , which ensures high reliability and durability of the dispenser. The actuation cap combines in an integral design the functions of conveying the pasty product from the container, guiding the product through an output channel to the outside as well as actuating the conveying device and closes the container on the upper side completely tightly to the outside. The hollow cylinder part determines the available pumping chamber and thus essentially the delivery volume per delivery stroke of the delivery piston, acts as a sliding guide for the actuating cap, allows the support of a reset device for the actuating cap and can also have a seat for a closure cap in its connection area with the dispenser container form the donor. It is also advantageously possible to design the cylinder part, at least partially, in one piece with the container, so that the assembly effort in the manufacture of the dispenser is further reduced.

Unter Berücksichtigung der Gestaltung des Rückschlagventiles in der Stirnfläche des Förderkolbens kann dieser in einer weiteren Ausführungsform in einfacher Weise becherförmig gestaltet und durch eine Rastverbindung an dem Rohrabschnitt der Betätigungskappe aufgenommen sein.Taking into account the design of the check valve in the end face of the delivery piston, in a further embodiment it can be designed in a simple manner in a cup shape and can be accommodated by a snap-in connection on the tube section of the actuating cap.

In Verbindung mit einer integralen Gestaltung des Ventilkörpers des Rückschlagventiles des Förderkolbens kann der Förderkolben in einfacher Weise auch einstückig an dem betreffenden Teil des Rohrabschnittes der Betätigungskappe angeformt sein.In conjunction with an integral design of the valve body of the check valve of the delivery piston the delivery piston can also be integrally formed in one piece on the relevant part of the pipe section of the actuating cap.

Weitere bevorzugte Gestaltungen zur Verlegung des Ausgabekanales innerhalb und durch die Betätigungskappe selbst, sowie der Aufnahme des Führungskolbens durch die Betätigungskappe unter Berücksichtigung einer möglichst einfachen Gestaltung des Rückschlagventiles an der Stirnfläche des Förderkolbens sind in den Ansprüchen 15 bis 18 dargelegt.Further preferred designs for laying the delivery channel inside and through the actuating cap itself, and the receiving of the guide piston by the actuating cap, taking into account the simplest possible design of the check valve on the end face of the delivery piston are set out in claims 15 to 18.

Die erfindungsgemaße Ausbildung des Hohlzylinderteil wird allen Anforderungen sowohl an die Gleitführung des Förderkolbens, als auch an die Lagerung der Betätigungskappe sowie der Rückstellfeder gerecht. Eine vorzugsweise integrale Gestaltung der Außenhülse als Ansatz des Behälters zur Gleitführung und Verrastung der Betätigungskappe gestattet sowohl eine einfache Aufnahme der die Betätigungskappe in ihre Ausgangslage rückstellenden Rückstellfeder und unterstützt auch die angestrebte Herabsetzung der Anzahl der notwendigen Einzelteile für den Spender. In den übrigen Ansprüchen sind weitere, bevorzugte Gestaltungen für die Bildung der Pumpkammer einerseits und für die mechanische Halterung der Betätigungskappe andererseits, angegeben.The design of the hollow cylinder part according to the invention meets all requirements both on the sliding guide of the delivery piston and on the mounting of the actuating cap and the return spring. A preferably integral design of the outer sleeve as an attachment of the container for sliding guidance and latching of the actuating cap allows both a simple inclusion of the return spring returning the actuating cap to its initial position and also supports the desired reduction in the number of individual parts required for the dispenser. In the remaining claims, further preferred designs for the formation of the pump chamber on the one hand and for the mechanical mounting of the actuating cap on the other hand are specified.

Die Erfindung wird nachstehend anhand mehrerer Ausführungsbeispiele und zugehöriger Zeichnungen näher erläutert. In diesen zeigen:

Fig. 1
einen Längsschnitt eines Spenders nach einem ersten Ausführungsbeispiel der Erfindung,
Fig. 2
ein Kopfstück nach Fig. 1 in vergrößerter Darstellung,
Fig. 3
einen Längsschnitt durch ein Kopfstück des Spenders nach einem zweiten Ausführungsbeispiel der vorliegenden Erfindung,
Fig. 4
einen Längsschnitt durch ein Kopfstück des Spenders eines dritten Ausführungsbeispieles,
Fig. 5
einen Querschnitt entlang der Linie I-I in Fig. 4, und
Fig. 6
einen Längsschnitt durch ein Kopfstück des Spenders nach einem vierten Ausführungsbeispiel der Erfindung.
The invention is explained in more detail below with the aid of several exemplary embodiments and associated drawings. In these show:
Fig. 1
2 shows a longitudinal section of a dispenser according to a first embodiment of the invention,
Fig. 2
1 in an enlarged view,
Fig. 3
2 shows a longitudinal section through a head piece of the dispenser according to a second exemplary embodiment of the present invention,
Fig. 4
2 shows a longitudinal section through a head piece of the dispenser of a third exemplary embodiment,
Fig. 5
a cross section along the line II in Fig. 4, and
Fig. 6
a longitudinal section through a headpiece of the dispenser according to a fourth embodiment of the invention.

Figur 1 zeigt in einem ersten Ausführungsbeispiel der Erfindung zunächst die Hauptbestandteile eines Spenders 1 für pastöse Produkte, z.B. Zahncreme, wobei diese Hauptbestandteile ein zylindrischer Behälter 2, ein sich an diesen anschließendes Kopfstück 3, eine den Spender abschließende Verschlußkappe 4 und ein in dem Behälter gleitbeweglicher Nachlaufkolben 5 sind. Das Kopfstück 3 besteht seinerseits aus dem Hohlzylinderteil 6 und der Betätigungskappe 7. Die einzelnen Teile des Spenders 1 bestehen aus spritzgußfähigem Kunststoff, vorzugsweise aus Polyethylen oder Polypropylen, so daß der Spender 1 einerseits leicht ist und andererseits eine Beeinflussung der in den Behälter 2 des Spenders 1 eingefüllten pastösen Masse durch den Werkstoff des Spenders 1 unterbleibt. Zur Bereitstellung der Masse innerhalb des Behälters 2 dient der längs der Behälterinnenwandung gleitverschiebliche Nachlaufkolben 5, durch den die pastöse Masse im Behälter 2 ständig unter dem Druck der Umgebungsatmosphäre aufgenommen ist, und beim Gebrauch des Spenders 1 eine Entleerung des Behälters 2 von unten nach oben erfolgt. Auf diese Weise wird eine sehr einfache Nachführung des pastösen Produktes innerhalb des Behälters 2 nach oben zu einer im Kopfstück 3 repräsentierten Fördereinheit des Spenders 1 gewährleistet und bei der Ausgabe des pastösen Produktes aus dem Spender 1 ein Unterdruck innerhalb des Behälters 2 wie auch ein Zutritt der Außenatmopshäre zu dem Behälterinnenraum verhindert.Figure 1 shows in a first embodiment of the invention, the main components of a dispenser 1 for pasty products, such as toothpaste, these main components being a cylindrical container 2, an adjoining head piece 3, a closure cap 4 closing the dispenser and a slidable in the container Trailing pistons 5 are. The head piece 3 in turn consists of the hollow cylinder part 6 and the actuating cap 7. The individual parts of the dispenser 1 consist of injection-molded plastic, preferably of polyethylene or polypropylene, so that the dispenser 1 is light on the one hand and on the other hand an influence on the container 2 of the dispenser 1 filled pasty mass through the material of donor 1 is omitted. To provide the mass within the container 2 is used along the inner wall of the slide piston 5, through which the pasty mass in the container 2 is constantly absorbed under the pressure of the ambient atmosphere, and when the dispenser 1 is used, the container 2 is emptied from bottom to top . In this way, a very simple tracking of the pasty product inside the container 2 up to a conveyor unit of the dispenser 1 represented in the head piece 3 is guaranteed and when the pasty product is dispensed from the dispenser 1, a negative pressure inside the container 2 as well as access to the Prevents outside atmosphere to the container interior.

Das Hohlzylinderteil 6 des Kopfstückes 3 ist gegenüber einem Behältermantel radial nach innen zurückgesetzt, wobei zugleich ein Sitz für die Verschlußkappe 4 gebildet wird, die auf den Behälter 2 fluchtend aufgesetzt werden kann, so daß der gesamte Spender 1 eine einheitliche, zylindrische Aussenkontur aufweist.The hollow cylinder part 6 of the head piece 3 is set back radially inwards relative to a container jacket, a seat for the closure cap 4 being formed at the same time, which can be placed flush on the container 2, so that the entire dispenser 1 has a uniform, cylindrical outer contour.

Die Einzelheiten des ersten Ausführungsbeispieles werden nachfolgend anhand von Fig. 2 näher erläutert, die eine vergrößerte Darstellung des Kopfstückes 3 nach Fig. 1 unter Einschluß der Verschlußkappe 4 ist und die die Einzelheiten dieses Ausführungsbeispieles besser erkennen läßt.The details of the first exemplary embodiment are explained in more detail below with reference to FIG. 2, which is an enlarged illustration of the head piece 3 according to FIG. 1, including the closure cap 4, and which shows the details of this exemplary embodiment better.

Wie Fig. 2 zeigt, weist der Behälter 2 an seinem oberen Ende einen Absatz 8 auf, dessen Umfangsfläche mit einer Rastausnehmung 9 eine Sitzfläche für die Verschlußkappe 4 bildet, die mit einem inneren Ringvorsprung 10 beim Verschließen des Spenders 1 in diese Rastausnehmung 9 eingreift, so daß die Verschlußkappe 4 spaltfrei fluchtend an dem Behälter 2 aufgenommen ist. Stirnseitig ist der Absatz 8 durch eine Stirnwand 11 begrenzt, in der zentral eine Austrittsöffnung 12 ausgenommen ist.As shown in FIG. 2, the container 2 has a shoulder 8 at its upper end, the circumferential surface of which forms a seat surface for the closure cap 4 with a latching recess 9, which engages with this inner recess 10 when the dispenser 1 is closed in this latching recess 9, so that the closure cap 4 is received in alignment with the container 2 without gaps. At the end, the shoulder 8 is delimited by an end wall 11 in which an outlet opening 12 is centrally recessed.

Von der Stirnwand 11 aus erstreckt sich axial einstückig eine Außenhülse 13, die ein Grundelement des axial an dem Behälter 2 ansetzenden Hohlzylinderteiles 6 bildet. Der Durchmesser der Außenhülse 13 ist geringer als derjenige des Behälters 2, um einen ausreichenden radialen Aufnahmeraum für eine Gleitführung der Betätigungskappe 7 vorzusehen und eine Aufnahme der Verschlußkappe 4 in der axialen Verlängerung des Behälters 2 zu ermöglichen. Unter Bildung eines Ringraumes 14 ist in die Außenhülse 13 eine Innenhülse 15 eingesetzt, die mit ihrer Bodenfläche an der Stirnwand 11 anliegt. Im Bereich ihrer Bodenfläche ist die Innenhülse 15 mit einer äußeren, umlaufenden Ringschulter 15a versehen, die radial der Breite des Ringraumes entspricht und für einen festen Sitz der Innenhülse 15 in der Außenhülse 13 sorgt. Die Innenhülse 15 besitzt eine becherförmige Gestalt, wobei in einem zentralen Bodenbereich eine Schließklappe 16 als Ventilkörper ausgebildet ist, die die Austrittsöffnung 12 der Stirnwand 11 abdeckt und den Ventilkörper eines im Zusammenwirken mit der Austrittsöffnung 12 gebildeten Rückschlagventiles bildet. Vorzugsweise ist die Schließklappe 16 unter Wahrung eines Materialzusammenhanges mit dem verbleibenden Boden der Innenhülse 15 teilweise an ihrem Umfang aus dem Bodenmaterial der Innenhülse 15 herausgetrennt und über einen verbleibenden Materialsteg scharnierartig und gelenkig mit dem verbleibendem Bodenteil der Innenhülse 15 verbunden. Diese Verbindung gestattet es der Schließklappe 16 einseitig zu schwenken, wenn ein Behälterinnendruck im Bereich der Austrittsöffnung 12 größer ist als ein oberhalb der Schließklappe 16 herrschender Druck.Extending axially in one piece from the end wall 11 is an outer sleeve 13, which forms a basic element of the hollow cylinder part 6 which axially attaches to the container 2. The diameter of the outer sleeve 13 is smaller than that of the container 2 in order to provide a sufficient radial receiving space for a sliding guide of the actuating cap 7 and to enable the closure cap 4 to be received in the axial extension of the container 2. To form an annular space 14, an inner sleeve 15 is inserted into the outer sleeve 13, which rests with its bottom surface on the end wall 11. In the area of its bottom surface, the inner sleeve 15 is provided with an outer, circumferential annular shoulder 15a, which corresponds radially to the width of the annular space and ensures that the inner sleeve 15 is firmly seated in the outer sleeve 13. The inner sleeve 15 has a cup-shaped shape, a closing flap 16 being designed as a valve body in a central base region, which covers the outlet opening 12 of the end wall 11 and forms the valve body of a check valve formed in cooperation with the outlet opening 12. While maintaining a material connection with the remaining bottom of the inner sleeve 15, the closing flap 16 is preferably partially circumferentially separated from the bottom material of the inner sleeve 15 and hingedly and articulatedly connected to the remaining bottom part of the inner sleeve 15 via a remaining material web. This connection allows the closing flap 16 to pivot on one side if an internal container pressure in the region of the outlet opening 12 is greater than a pressure prevailing above the closing flap 16.

Die Außenhülse 13 bildet gemeinsam mit der Innenhülse 15 eine Führungs- und Halteeinrichtung für die Betätigungskappe 7, die zugleich die Fördereinrichtung des Spenders 1 bildet.The outer sleeve 13 forms, together with the inner sleeve 15, a guiding and holding device for the actuating cap 7, which at the same time forms the conveying device of the dispenser 1.

Die Betätigungskappe 7 weist eine im allgemeinen becherförmige Gestalt mit einem Bodenabschnitt 17 und einer äußeren Ringwand 18 auf. Innerhalb des von der Ringwand 18 und dem Bodenabschnitt 17 eingehüllten Innenraumes der Betätigungskappe 7 weist diese einen Rohrabschnitt 19 auf, der seinerseits aus zwei Abschnitten, einem in axialer Richtung und zentral angeordneten Kolbentragrohr 20 und einem sich im Bodenbereich der Betätigungskappe 7 hieran anschließenden, stumpfwinklig abgewinkelten Verteilerrohr 21 besteht. An dem Kolbentragrohr 20 ist ein Förderkolben 22 aufgenommen, der hierzu einen sich axial in die Betätigungskappe 7 hineinerstreckenden Hohlzylinderansatz 23 aufweist. Der Förderkolben 22 ist in seinem Außendurchmesser so bemessen, daß er dicht gleitend in der Innenhülse 15 geführt ist.The actuating cap 7 is generally cup-shaped with a bottom portion 17 and an outer one Ring wall 18 on. Within the interior of the actuating cap 7, which is enveloped by the annular wall 18 and the bottom section 17, the latter has a tube section 19 which in turn consists of two sections, an axially and centrally arranged piston support tube 20 and an obtuse-angled angle adjoining it in the bottom area of the actuating cap 7 Distribution pipe 21 is made. On the piston support tube 20, a delivery piston 22 is received, which for this purpose has a hollow cylinder extension 23 axially extending into the actuating cap 7. The delivery piston 22 is dimensioned in its outer diameter such that it is guided in the inner sleeve 15 in a tightly sliding manner.

Die Außenhülse 13 besitzt einen oberen und einen unteren Ringvorsprung 25, 26, die an ihrer Umfangsfläche eine Gleitführung für die Ringwand 18 der Betätigungskappe 7 an deren Innenseite bilden. Mit einem unteren, einwärts weisenden Ringvorsprung 27 der Betätigungskappe 7 ist diese mit dem Ringvorsprung 25 der Außenhülse 13 verrastet, so daß die Betätigungskappe 7 axial gleitverschieblich, jedoch während der Anwendung des Spenders 1 unverlierbar an der Außenhülse 13 gehalten ist.The outer sleeve 13 has an upper and a lower ring projection 25, 26, which form a sliding guide for the ring wall 18 of the actuating cap 7 on the inside thereof on its peripheral surface. With a lower, inwardly facing annular projection 27 of the actuating cap 7, this is locked to the annular projection 25 of the outer sleeve 13, so that the actuating cap 7 is axially slidably, but captively held on the outer sleeve 13 during use of the dispenser 1.

Durch die abgedichtete Gleitführung des Förderkolbens 22 in der Innenhülse 15 wird unterhalb einer Stirnfläche 28 des Förderkolbens 22 in Richtung der Schließklappe 16 eine Pumpkammer 24 gebildet, deren Größe von der axialen Stellung bzw. Verschiebung der Betätigungskappe 7 und damit des Förderkolbens 22 abhängt. In einer Stirnfläche 29 des Förderkolbens 22 ist eine Eintrittsöffnung 29 vorgesehen, die im Kolbeninneren durch eine Schließklappe 30 als Ventilkörper abgedeckt ist. Diese Schließklappe 30 bildet einen schwenkbar angespritzten Ansatz einer in den Förderkolben 22 eingesetzten Ventilhülse 31 und einen Ventilkörper eines der Eintrittsöffnung 29 zugeordneten Rückschlagventiles. Die Ventilhülse 31 ist unter Benutzung des rohrförmigen Zylinderansatzes 23 des Förderkolbens 22 in diesen eingesetzt und die Schließklappe 29 ist im Bodenbereich der Ventilhülse 31 über einen Materialsteg scharnierartig an ihr gehalten.The sealed sliding guide of the delivery piston 22 in the inner sleeve 15 forms a pump chamber 24 below an end face 28 of the delivery piston 22 in the direction of the closing flap 16, the size of which depends on the axial position or displacement of the actuating cap 7 and thus of the delivery piston 22. In an end face 29 of the delivery piston 22, an inlet opening 29 is provided, which is covered inside the piston by a closing flap 30 as a valve body. This closing flap 30 forms a pivotally molded attachment of a valve sleeve 31 inserted into the delivery piston 22 and a valve body of a check valve assigned to the inlet opening 29. The valve sleeve 31 is using the tubular cylinder extension 23 of the delivery piston 22 used in this and the closing flap 29 is held in the bottom area of the valve sleeve 31 via a material web hinge-like.

Der Förderkolben 22 ist an dem Kolbentragrohr 20 über eine Schnappverbindung befestigt.The delivery piston 22 is fastened to the piston support tube 20 via a snap connection.

In dem Ringraum 14 zwischen der Innenhülse 15 und der Außenhülse 13 ist als Rückstellfeder für die Betätigungskappe 7 eine Schraubenfeder 32 aufgenommen, die sich einerseits an der äußeren Ringschulter der Innenhülse 15 und andererseits am Boden der Betätigungskappe 7 abstützt und diese beim Fehlen einer Betätigungskraft in der in Fig. 2 dargestellten, durch die Ringvorsprünge 26 und 27 bestimmten Lage hält.In the annular space 14 between the inner sleeve 15 and the outer sleeve 13, a helical spring 32 is received as a return spring for the actuating cap 7, which is supported on the one hand on the outer annular shoulder of the inner sleeve 15 and on the other hand on the bottom of the actuating cap 7 and this in the absence of an actuating force in the shown in Fig. 2, determined by the ring projections 26 and 27 position.

Der Bodenbereich 17 der Betätigungskappe 7 bildet an seiner Außenseite die Betätigungsfläche, an der vertikal nach unten die Betätigungskraft für die Ausgabe des pastösen Produktes aus dem Spender 1 angreift. Hierfür bildet der Rohrabschnitt 19 einen Ausgabekanal 33.The bottom region 17 of the actuating cap 7 forms on its outside the actuating surface on which the actuating force acts vertically downward for the dispensing of the pasty product from the dispenser 1. For this purpose, the pipe section 19 forms an output channel 33.

Um eine nachteilige, rechtwinklige Führung des Ausgabekanales 33 zu vermeiden, ist der Bodenbereich 17 der Betätigungskappe 7 im wesentlichen in einer zur Längsachse des Spenders 1 geneigten Ebene ausgeführt.In order to avoid disadvantageous, right-angled guidance of the dispensing channel 33, the bottom region 17 of the actuating cap 7 is designed essentially in a plane inclined to the longitudinal axis of the dispenser 1.

Der Spender 1 arbeitet wie folgt: Geht man zunächst davon aus, daß vor einer Erstbetätigung des Spenders 1 lediglich der Behälter 2 mit der pastösen Masse gefüllt ist, erfolgt beim axialen Niederdrücken der Betätigungskappe 7 unter Volumenverringerung der Pumpkammer 24 zunächst ein Leerhub, d.h., infolge des Druckanstieges in der Pumpkammer 24 beim Niederdrücken des Förderkolbens 22 schwenkt die Schließkappe 30 des Förderkolbens 22 nach oben, so daß die Eintrittsöffnung 29 in der Kolbenstirnfläche 28 freigegeben wird und Luft aus der Pumpkammer 24 durch den Ausgabekanal 33 nach außen entweicht.The dispenser 1 works as follows: if it is initially assumed that only the container 2 is filled with the pasty mass before the dispenser 1 is actuated for the first time, an axial stroke takes place when the actuating cap 7 is axially depressed while the volume of the pumping chamber 24 is reduced, ie as a result of the pressure increase in the pump chamber 24 when the delivery piston 22 is depressed, the closing cap 30 of the delivery piston 22 pivots upward, so that the inlet opening 29 in the piston end face 28 is opened and air escapes from the pump chamber 24 through the discharge channel 33 to the outside.

Wird anschließend die Betätigungskappe 7 nicht länger durch eine Betätigungskraft belastet, gleitet die Betätigungskappe 7 unter der Wirkung der Rückstellfeder 23 wieder in ihre Ausgangslage nach oben, wobei sich die Pumpkammer 24 wieder vergrößert. Der dabei entstehende Unterdruck in der Pumpkammer 24 führt einerseits dazu, daß die Schließklappe 30 des Förderkolbens 22 in ihre Ausgangslage zurückkehrt und die Eintrittsöffnung 29 verschließt und andererseits die Schließklappe 16 an der Stirnwand 11 des Behälters 2 angehoben bzw. geschwenkt wird und das pastöse Produkt aus dem Behälter 2 in die Pumpkammer 24 strömen kann, bis ein Druckausgleich zwischen der Pumpkammer 24 und dem Innenraum des Behälters 2 hergestellt ist und die Schließklappe 16 sich wieder auf die Austrittsöffnung 12 in der Stirnwand 11 absenkt. Ein erneutes Herabdrücken der Betätigungskappe 7 verstärkt zum einen den Druck auf die Schließklappe 16, so daß die Pumpkammer 24 vollständig von dem Innenraum des Behälters 2 getrennt ist und führt andererseits zur Entfernung der Schließklappe 30 von der Eintrittsöffnung 29 in der Stirnfläche 28 des Förderkolbens 22, so daß das pastöse Produkt durch den Ausgabekanal 33, d.h. durch das Kolbentragrohr 20 und das Verteilerrohr 21 nach außen gedrückt wird.If the actuating cap 7 is then no longer loaded by an actuating force, the actuating cap 7 slides back up to its starting position under the action of the return spring 23, the pump chamber 24 enlarging again. The resulting vacuum in the pump chamber 24 leads on the one hand to the fact that the closing flap 30 of the delivery piston 22 returns to its starting position and closes the inlet opening 29 and on the other hand the closing flap 16 on the end wall 11 of the container 2 is raised or pivoted and the pasty product is released the container 2 can flow into the pump chamber 24 until a pressure equalization is established between the pump chamber 24 and the interior of the container 2 and the closing flap 16 lowers again onto the outlet opening 12 in the end wall 11. Pressing the actuating cap 7 down again increases the pressure on the closing flap 16 so that the pump chamber 24 is completely separated from the interior of the container 2 and on the other hand leads to the removal of the closing flap 30 from the inlet opening 29 in the end face 28 of the delivery piston 22. so that the pasty product through the discharge channel 33, ie is pressed outwards by the piston support tube 20 and the distributor tube 21.

Die ausgegebene Produktmenge bestimmt sich somit nach dem Maß der Kolbenbewegung, die das Produkt aus der Pumpkammer 24 durch den Ausgabekanal 33 fördert. Nach Beendigung der Druckbeaufschlagung der Betätigungskappe 7 kehrt diese wiederum unter dem Einfluß der rückstellenden Schraubenfeder 32 in ihre Ausgangslage zurück, wobei der entstehende Unterdruck in der Pumpkammer 24 zum Schließen der kolbenseitigen Schließklappe 30 führt. Dies wird unterstützt durch die sich noch im Ausgabekanal 33 der Betätigungskappe 7 befindende Produktmenge, die bei einer Vergrößerung des Volumens der Pumpkammer 24 und noch nicht vollständig abdichtender Schließklappe 30 wieder durch den Ausgabekanal 33 in Richtung des Pumpenraumes 24 zurückgesaugt wird. Gleichzeitig führt, wie vorbeschrieben, der Unterdruck in der Pumpkammer 24 zu einer Öffnung der den Produktvorrat von der Pumpkammer 24 abtrennenden Schließklappe 16, so daß das Produkt aus dem Inneren des Berälters 2 in die Pumpkammer 24 hineinströmt, um diesen erneut mit dem Produkt zu füllen und nach erfolgtem Druckausgleich die Schließklappe 16 wieder in ihre Schließstellung an der Stirnwand 11 zurückkehrt.The amount of product dispensed is thus determined according to the extent of the piston movement which conveys the product from the pump chamber 24 through the dispensing channel 33. After the pressurization of the actuating cap 7 has ended, this in turn returns to its starting position under the influence of the restoring helical spring 32, the resulting negative pressure in the pumping chamber 24 leading to the closing of the closing flap 30 on the piston side. This is supported by the amount of product still located in the discharge channel 33 of the actuating cap 7, which is sucked back through the discharge channel 33 in the direction of the pump chamber 24 when the volume of the pump chamber 24 increases and the closing flap 30 is not yet completely sealed. At the same time leads, as described above, the negative pressure in the pumping chamber 24 to an opening of the closing flap 16 which separates the product supply from the pumping chamber 24, so that the product flows from the inside of the container 2 into the pumping chamber 24 in order to refill it with the product and after pressure equalization, the closing flap 16 returns to its closed position on the end wall 11.

Selbstverständlich ist es auch möglich, bereits vor einer Erstbenutzung des Spenders 1 die Pumpkammer 24 ebenfalls mit dem pastösen Produkt zu füllen, so daß anstelle des ersten Leerhubes sofort beim ersten Niederdrücken der Betätigungskappe 7 das pastöse Produkt aus dem Spender 1 ausgegeben werden kann.Of course, it is also possible to fill the pump chamber 24 with the pasty product even before the dispenser 1 is used for the first time, so that instead of the first idle stroke, the pasty product can be dispensed from the dispenser 1 when the actuating cap 7 is first depressed.

In den weiteren Ausführungsbeispielen sind Abwandlungen im Aufbau der Betätigungskappe 7 oder der Innen- bzw. Außenhülse 15, 13 angegeben, ohne daß dabei das geschilderte Förderprinzip verlassen wird. Stets wird beim Niederdrücken der Betätigungskappe 7 das pastöse Gut aus der Pumpkammer 24 durch den Ausgabekanal 33 nach außen verdrängt, während bei der gleitenden Zurückführung der Betätigungskappe 7 in ihre Ausgangslage pastöses Gut aus dem Gutvorrat im Behälter 2 in die Pumpkammer 24 nachgesaugt wird. Gleiche Teile, wie im ersten Ausführungsbeispiel gemäß Fig. 2 sind auch in den folgenden Figuren 3 bis 6 mit den gleichen Bezugszeichen versehen.In the further exemplary embodiments, modifications are specified in the structure of the actuating cap 7 or the inner or outer sleeve 15, 13, without the conveying principle described being abandoned. When the actuating cap 7 is depressed, the pasty material is always displaced out of the pumping chamber 24 through the discharge channel 33, while when the actuating cap 7 is slid back into its initial position, pasty material is sucked into the pumping chamber 24 from the material supply in the container 2. The same parts as in the first exemplary embodiment according to FIG. 2 are also provided with the same reference symbols in the following FIGS. 3 to 6.

Die Ausführungsform gemäß Fig. 3 unterscheidet sich von derjenigen nach Fig. 2 lediglich dadurch, daß hier auf den Einsatz einer Ventilhülse 31 im Förderkolben 22 verzichtet ist und stattdessen in der Eintrittsöffnung 29 an der Stirnfläche 28 des Förderkolbens 22 ein Rückschlagventil durch einer Schließkörper 30 gebildet ist, der einstückig als gelenkige Lasche an das Kolbentragrohr 20 angespritzt und rechtwinklig abgewinkelt ist. Dadurch wird zugleich eine zuverlässige Vorspannung des Schließkörpers 30 in Schließrichtung, d.h. zum Verschluß der Eintrittsöffnung 29 in der Stirnfläche 28 des Förderkolbens 22 erreicht.The embodiment according to FIG. 3 differs from that according to FIG. 2 only in that here the use of a valve sleeve 31 in the delivery piston 22 is dispensed with and instead a check valve is formed by a closing body 30 in the inlet opening 29 on the end face 28 of the delivery piston 22 is molded in one piece as an articulated tab on the piston support tube 20 and angled at right angles. As a result, a reliable pretensioning of the closing body 30 in the closing direction that is, to close the inlet opening 29 in the end face 28 of the delivery piston 22.

Durch die Ventilhülse 31 kann das Kolbentragrohr 20 bis nahe an eine Innenseite der Kolbenstirnfläche herangeführt, wodurch die Länge des Hohlzylinderansatzes 23 des Förderkolbens 22 verkürzt werden kann.Through the valve sleeve 31, the piston support tube 20 can be brought close to an inside of the piston end face, whereby the length of the hollow cylinder extension 23 of the delivery piston 22 can be shortened.

Ein weiteres Ausführungsbeispiel gemäß Fig. 4 und 5 unterscheidet sich von den vorangegangenen durch eine abgewandelte Halterung der Schließklappe 30 des Rückschlagventiles im Förderkolben 22. Hierbei weist das Kolbentragrohr 20 einen segmentartig verstärkten Wandbereich 35 auf, in dem ein Längsschlitz 36 ausgebildet ist. In diesem ist partiell ein prismatischer Kunststoffschaft 37 aufgenommen, mit dem die Schließklappe 30 über eine Lasche einstückig und schwenkbar verbunden ist.A further exemplary embodiment according to FIGS. 4 and 5 differs from the previous ones by a modified mounting of the closing flap 30 of the check valve in the delivery piston 22. Here, the piston support tube 20 has a segment-like reinforced wall area 35, in which a longitudinal slot 36 is formed. A prismatic plastic shaft 37 is partially accommodated in this, with which the closing flap 30 is connected integrally and pivotably via a tab.

Diese Lösung ermöglicht eine zuverlässige und unkomplizierte Lagefixierung der Schließklappe 30 über der Eintrittsöffnung 29 des Förderkolbens 22.This solution enables a reliable and uncomplicated fixing of the position of the closing flap 30 above the inlet opening 29 of the delivery piston 22.

Figur 6 zeigt eine Ausführungsform des Spenders 1, die eine weitere Verringerung der Anzahl der Einzelteile des Kopfstückes 3 dadurch erreicht, daß die in den vorangegangenen Ausführungsformen von der Außenhülse 13 getrennte Innenhülse 15 nunmehr mit dieser zu einem integralen Bauteil der Förderhülse 38 vereinigt ist, deren Wandung einen U-förmigen Querschnitt aufweist, so daß die Schraubenfeder 32 zwischen einer Innenwand 39 und einer Außenwand 40 der Förderhülse 38 aufgenommen und geführt ist. Die Stirnwand 11 weist einstückig einen Hülsenvorsprung 41 auf, in dem die Förderhülse 38 durch einen Preßsitz gehalten ist.Figure 6 shows an embodiment of the dispenser 1, which achieves a further reduction in the number of individual parts of the head piece 3 in that the inner sleeve 15 separated from the outer sleeve 13 in the previous embodiments is now combined with the latter to form an integral component of the conveying sleeve 38, the Wall has a U-shaped cross section, so that the coil spring 32 is received and guided between an inner wall 39 and an outer wall 40 of the conveying sleeve 38. The end wall 11 has in one piece a sleeve projection 41, in which the conveying sleeve 38 is held by an interference fit.

Auch die Gestaltung und Lagerung des Förderkolbens 22 an dem Kolbentragrohr 20 ist gegenüber den in Fig. 1 bis 5 dargestellten Ausführungsbeispielen abgewandelt. Hierbei ist das Kolbentragrohr 20 an seinem vorderen Ende mit einer Ansatz 42 versehen, der einen größeren Durchmesser aufweist als das übrige Kolbentragrohr 20, so daß an der Außenfläche des Tragrohres 20 eine Hinterschneidung 43 gebildet ist, während die Innenfläche des Kolbentragrohres 20 in diesem Bereich einen Bund aufweist.The design and mounting of the delivery piston 22 on the piston support tube 20 is also modified compared to the exemplary embodiments shown in FIGS. 1 to 5. Here, the piston support tube 20 is provided at its front end with a shoulder 42 which has a larger diameter than the rest of the piston support tube 20, so that on the outer surface an undercut 43 of the support tube 20 is formed, while the inner surface of the piston support tube 20 has a collar in this area.

An der Innenseite des Ansatzes 42 ist, ähnlich wie in Fig.2, wiederum eine Ventilhülse 31 aufgenommen, die zum einen der Schwenklagerung der Schließklappe 30 des kolbenseitigen Rückschlagventiles dient und zugleich den inneren Bund des Kolbentragrohres 20 abdeckt, so daß der Strömungswiderstand für die pastöse Masse in diesem Bereich des Ausgabekanals 33 nicht erhöht wird.On the inside of the extension 42, similar to FIG. 2, a valve sleeve 31 is again accommodated, which serves on the one hand for pivoting the closing flap 30 of the piston-side check valve and at the same time covers the inner collar of the piston support tube 20, so that the flow resistance for the pasty Mass in this area of the output channel 33 is not increased.

Der Förderkolben 22 ist so gestaltet, daß der Hohlzylinderansatz 23 einen integralen Bestandteil der Kolbendichtfläche bildet und zusammen mit einer vorderen Dichtungslippe des Förderkolbens 22 an der Innenwand 39 der Förderhülse 38 gleitet.The delivery piston 22 is designed so that the hollow cylinder extension 23 forms an integral part of the piston sealing surface and slides together with a front sealing lip of the delivery piston 22 on the inner wall 39 of the delivery sleeve 38.

Mit einem Rastring 44 greift der Hohlzylinderansatz 23 um den Ansatz 42 des Kolbentragrohres 20 herum und verrastet mit dem Kolbentragrohr 20 im Bereich der Hinterschneidung 43. Auf diese Weise kann der Förderkolben 22 einfach auf den Ansatz 42 aufgeschoben werden und ist sicher formschlüssig an dem Kolbentragrohr 20 gehalten, wobei ein weiteres Aufschieben des Förderkolbens 22 durch die Ventilhülse 31 bzw. den Ansatz 42 verhindert wird.With a locking ring 44, the hollow cylinder extension 23 engages around the extension 42 of the piston support tube 20 and engages with the piston support tube 20 in the region of the undercut 43. In this way, the delivery piston 22 can simply be pushed onto the extension 42 and is securely form-fitting on the piston support tube 20 held, wherein a further pushing of the delivery piston 22 is prevented by the valve sleeve 31 or the extension 42.

Diese Ausführung hat neben einer einfachen Lagerung aller für die Förderung des pastösen Produktes notwendigen Teile an der Betätigungskappe 7 den Vorteil einer weiter verbesserten Führungsstabilität für die Betätigungshülse 7 aufgrund der vergrößerten Kolbendichtfläche. Die Außenführung der Betätigungshülse 7 wird unabhängig davon auf die gleiche Weise, wie in den vorangegangenen Ausführungsbeispielen durch die Ringvorsprünge 25 und 26 erreicht, die in diesem Fall an der Außenwand 40 der Förderhülse 38 ausgeformt sind.In addition to simple storage of all the parts on the actuating cap 7 necessary for conveying the pasty product, this embodiment has the advantage of a further improved guide stability for the actuating sleeve 7 due to the enlarged piston sealing surface. The outer guidance of the actuating sleeve 7 is achieved independently of this in the same way as in the previous exemplary embodiments by the ring projections 25 and 26, which in this case are formed on the outer wall 40 of the conveying sleeve 38 are.

Die Schließkappe 16 des Rückschlagventiles an der Oberseite des Behälters 2 bildet entweder ein separates Schließorgan oder ist über eine Materiallasche mit der Innenwand 39 der Förderhülse 38 verbunden.The closing cap 16 of the check valve on the top of the container 2 either forms a separate closing element or is connected to the inner wall 39 of the conveying sleeve 38 via a material tab.

Eine weitere Vereinfachung dieser Ausführungsform kann dadurch gefunden werden, daß auf den äußeren Vorsprung 41 zur Aufnahme der Förderhülse 38 verzichtet wird und stattdessen die U-profilierte Förderhülse 38 einstückig mit der Stirnwand 11 des Behälters 2 ausgebildet ist.A further simplification of this embodiment can be found in that the outer projection 41 for receiving the conveying sleeve 38 is dispensed with and instead the U-shaped conveying sleeve 38 is formed in one piece with the end wall 11 of the container 2.

Die Handhabbarkeit des Spenders 1 ist in diesem Ausführungsbeispiel auch dadurch verbessert, daß der Bodenbereich 17 der Betätigungskappe 7, an dem der Handangriff zur Betätigung des Spenders 1 erfolgt, eine doppelseitige, gegensinnige Außenneigung aufweist, so daß ein Betätigungsfinger in die Mitte der äußeren Betätigungsfläche geführt und eine zuverlässige Einleitung der Betätigungskraft in die Betätigungskappe 7 gesichert wird.The manageability of the dispenser 1 is also improved in this exemplary embodiment in that the bottom region 17 of the actuating cap 7, on which the hand grip for actuating the dispenser 1 takes place, has a double-sided, opposing external inclination, so that an actuating finger is guided into the center of the outer actuating surface and a reliable introduction of the actuating force into the actuating cap 7 is ensured.

Auch bei diesem Ausführungsbeispiel arbeitet der Spender auf die im Zusammenhang mit Fig. 2 beschriebene Weise.In this embodiment too, the dispenser operates in the manner described in connection with FIG. 2.

Der Förderkolben 22 kann ferner auch gänzlich einstückig mit dem Kolbentragrohr 20 ausgeführt werden, so daß der Hohlzylinderansatz 23 des Förderkolbens 22 entfallen kann. In diesem Fall ist die Schließklappe 30 einstückig und schwenkbar an der Innenseite der Kolbenstirnfläche 28 angelenkt. Im Rahmen der erfindungsgemäßen Gestaltung des Spenders 1 sind auch weitere Abwandlungen, z.B. insofern möglich, als die Schraubenfeder 32 auch als federnder Kunststoffring und als Spritzgußteil, wie auch die übrigen Bestandteile des Spenders 1 ausgeführt werden kann. Modifikationen in der Gestaltung der Rückschlagventile an der Oberseite des Behälters 2 und im Förderkolben 22 können auch in Abhängigkeit von der Konsistenz des jeweils zu fördernden pastösen Produktes vorgenommen werden. Der Spender ist überall dort anwendbar, wo es um die portionierte Bereitstellung von pastösen Produkten geht, z.B. für medikamentöse Applikationen, in Kosmetik und Körperpflege, im Haushaltsbereich und bei der Ausgabe von pastösen Lebensmitteln.The delivery piston 22 can also be made entirely in one piece with the piston support tube 20, so that the hollow cylinder extension 23 of the delivery piston 22 can be omitted. In this case, the closing flap 30 is articulated in one piece and is pivotable on the inside of the piston end face 28. Within the scope of the design of the dispenser 1 according to the invention, further modifications, e.g. to the extent that the coil spring 32 can also be designed as a resilient plastic ring and as an injection molded part, as can the other components of the dispenser 1. Modifications in the design of the check valves on the top of the container 2 and in the delivery piston 22 can also be carried out depending on the consistency of the pasty product to be delivered. The dispenser can be used wherever the portioned provision of pasty products is concerned, e.g. for medicinal applications, in cosmetics and personal care, in the household sector and when dispensing pasty foods.

Claims (18)

  1. A dispenser for pasty products, comprising a substantially cylindrical container (2) receiving a product in a product storage space, the container having at its top end a headpiece (3) containing a manually operated conveying device having a conveying piston (2) and a product delivery duct (33) connectable to the product storage space for communication therewith, the headpiece (3) having a hollow cylindrical part (6) adjacent a top end wall (11) of the container (2), the conveying piston (2) being disposed for sliding in the hollow cylindrical part (6) and bounding a pump chamber (24) separable from the product storage space, an actuating cap (7) being disposed for axial sliding on the hollow cylindrical part (6) and having an integral tubular part (19) serving as the delivery duct (33), the actuating cap (7) engaging beaker-fashion over the hollow cylindrical part (6), the conveying piston (22) being mounted on the tubular part (19) and being formed in an end face (23) with an inlet aperture (29) communicating with the delivery duct (33) and having a moving member (30) of a first non-return valve, the moving member (30) being associated with the inlet aperture (29), the container end wall (11) being formed with an outlet aperture (12) connectable to the pump chamber (24) and having a moving member (16) of a second non-return valve, the moving member (16) being associated with the outlet aperture (12), it being possible to produce a communicating connection between the pump chamber (24) and the delivery duct (33) or between the product storage space and the pump chamber (24) according as the conveying piston (22) makes a delivery stroke or a return stroke, characterised in that the hollow cylindrical part (6) has an outer sleeve (13) and an inner sleeve (15) co-operating to bound between them an annular apace adapted to receive a return spring (32) bearing at its top end on a base part (13) of the actuating cap (7) and the outer peripheral surface of the outer sleeve (13) serves in the zone adjacent the partition (11) as a guide surface for an inwardly directed annular projection (27) of the actuating cap (7) and the guide surface is followed axially by spaced-apart radial projections (25, 26) serving as guide and stop elements of the actuating cap and the container (2) has at its base a follow-up piston (5) slidable by atmospheric pressure on an inner wall of the container.
  2. A dispenser according to claim 1, characterised in that the outer sleeve (13) is unitary with the container (2) and the inner sleeve (15) is introduced into the outer sleeve (13).
  3. A dispenser according to claim 1 or 2, characterised in that the outer sleeve (13) is offset radially inwards from the peripheral surface of the container (2) and is perpendicular to the container end wall (11) and unitary therewith.
  4. A dispenser according to any of the previous claims 1 to 3, characterised in that the inner sleeve (15) is beaker-shaped and is placed on the container end wall by way of a bottom peripheral annular shoulder (15a).
  5. A dispenser according to at least one of the previous claims 1 to 4, characterised in that when the actuating cap (7) is in a top end position the annular projection (7) extending inwards from the container-side edge of the cap (7) is in contact with the bottom radial projection (26) of the outer sleeve (13).
  6. A dispenser according to at least one of the previous claims 1 to 5, characterised in that the return spring is a helical spring (32).
  7. A dispenser according to claim 6, characterised in that the helical spring (32) is placed on the annular shoulder (15a) of the inner sleeve (15).
  8. A dispenser according to at least one of the previous claims 1 to 7, characterised in that the inner sleeve (15) has a bottom part on which the moving member (16) of the second non-return valve associated with an outlet aperture (12) in the end wall (11) is disposed unitarily and pivotally.
  9. A dispenser according to at least one of the previous claims 1 to 8, characterised in that the end wall (11) is disposed on a step (8) of the container (2) with a diameter less than that of a main part of the container (2) and a peripheral surface of the step (8) is a seat surface for a closure cap (4).
  10. A dispenser according to claim 9, characterised in that the seat surface of the step (8) has catch elements (9) engageable with companion elements (10) on the closure cap (4).
  11. A dispenser according to at least one of the previous claims 1 to 10, characterised in that the inner sleeve and outer sleeve of the hollow cylindrical part (6) serve as walls (39, 40) of a unitary U-section guide sleeve (38).
  12. A dispenser according to claim 11, characterised in that the guide sleeve (38) is introduced into an annular projection (41) extending unitarily from the container end wall (11).
  13. A dispenser according to at least one of the previous claims 1 to 12, characterised in that the conveying piston (22) is beaker-shaped and is mounted by way of a catch connection on the tubular part (19) of the actuating cap (7).
  14. A dispenser according to at least one of the previous claims 1 to 13, characterised in that the tubular part (19) of the actuating cap (7) is unitary with an axial piston support tube (20) and a distributing pipe (21) which is bent outwards at an obtuse angle in the bottom zone (17) of the actuating cap (7).
  15. A dispenser according to claim 14, characterised in that an inner diameter of the piston support tube (20) is greater than that of the distributing pipe (21).
  16. A dispenser according to claim 14 or 15, characterised in that a sleeve (31) having a bottom flap (30) serving as the moving member of the first non-return valve is introduced into the conveying piston (22) between an end face of the piston support tube (20) and an internal end face of the conveying piston (22).
  17. A dispenser according to at least one of the previous claims 14 to 16, characterised in that the piston support tube (20) has a wall zone (35) which is reinforced on one side and which is formed with a slot (36) receiving a member (37) for the mounting of the moving member (30) of the first non-return valve associated with the conveying piston (22).
  18. A dispenser according to at least one of the previous claims 14 to 17, characterised in that the piston support tube (20) has an undercut extension (42) of enlarged diameter and the conveying piston (22) is pushed on to such extension, an end catch ring (44) of the conveying piston (22) engaging in the undercut (43).
EP87100326A 1986-01-17 1987-01-13 Dispenser for viscous products Expired - Lifetime EP0230252B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87100326T ATE82927T1 (en) 1986-01-17 1987-01-13 DISPENSER FOR PASTOESE PRODUCTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863601311 DE3601311A1 (en) 1986-01-17 1986-01-17 DISPENSER FOR PASTOESE PRODUCTS
DE3601311 1986-01-17

Publications (4)

Publication Number Publication Date
EP0230252A2 EP0230252A2 (en) 1987-07-29
EP0230252A3 EP0230252A3 (en) 1988-06-29
EP0230252B1 EP0230252B1 (en) 1992-12-02
EP0230252B2 true EP0230252B2 (en) 1995-11-29

Family

ID=6292080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100326A Expired - Lifetime EP0230252B2 (en) 1986-01-17 1987-01-13 Dispenser for viscous products

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US (1) US4875604A (en)
EP (1) EP0230252B2 (en)
JP (1) JP2568830B2 (en)
AT (1) ATE82927T1 (en)
AU (1) AU599350B2 (en)
CA (1) CA1304328C (en)
DE (2) DE3601311A1 (en)
ES (1) ES2037012T5 (en)
GR (2) GR3006463T3 (en)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63158879U (en) * 1987-04-03 1988-10-18
JPS6453084U (en) * 1987-09-30 1989-03-31
DE8801132U1 (en) * 1988-01-31 1988-04-14 Ophardt Product Hermann Ophardt, 4174 Issum Wall dispenser for dosed dispensing of liquid substances
JPH01141273U (en) * 1988-03-22 1989-09-27
DE3900267A1 (en) * 1989-01-07 1990-07-12 Alfred Von Schuckmann DONOR
JPH0751499Y2 (en) * 1989-02-27 1995-11-22 株式会社吉野工業所 Extrusion container
FR2647757B1 (en) * 1989-06-05 1991-09-13 Postollec Madeleine DISPENSER FOR PREDETERMINED DOSES OF A LIQUID OR PASTY PRODUCT, ESPECIALLY FOOD OR COSMETIC PRODUCT
FR2650255B1 (en) * 1989-07-25 1992-01-10 Oreal DISPENSING ASSEMBLY OF ONE OR MORE PRODUCT (S) IN THE FORM OF A CREAM, LIQUID OR POWDER, ESPECIALLY COSMETIC PRODUCTS
JPH0343481U (en) * 1989-09-06 1991-04-23
US5399608A (en) * 1989-10-20 1995-03-21 General Electric Company Highly dense thermoplastic molding compositions
US5494193A (en) * 1990-06-06 1996-02-27 The Coca-Cola Company Postmix beverage dispensing system
US5615801A (en) * 1990-06-06 1997-04-01 The Coca-Cola Company Juice concentrate package for postmix dispenser
US5842603A (en) * 1990-06-06 1998-12-01 The Coca-Cola Company Postmix juice dispenser
JPH0421465U (en) * 1990-06-12 1992-02-24
GB2250323A (en) * 1990-11-27 1992-06-03 Appor Ltd Product dispensing apparatus
FR2674024B1 (en) * 1991-03-11 1994-03-11 Daniel Crosnier METERING DEVICE ADAPTABLE TO VARIOUS CONTAINERS.
AU663879B2 (en) * 1991-07-02 1995-10-26 Otto Katz Dispenser of doses of liquids and paste-like masses
US6305577B1 (en) * 1991-09-13 2001-10-23 Owens-Illinois Closure Inc. Squeeze dispenser package for viscous products
SE9201372D0 (en) * 1992-04-30 1992-04-30 Norden Pac Dev Ab METHOD OF PRODUCING A SUBSTANTIALLY AIR-FREE CONTAINER
US5667104A (en) * 1992-05-22 1997-09-16 Meshberg; Philip Directional dispenser and method of its use
US5620113A (en) * 1992-05-22 1997-04-15 Meshberg; Philip Dispenser and method of its use
US5593064A (en) * 1993-12-09 1997-01-14 Meshberg; Philip Promotional dispenser and method for its use
FR2693174B1 (en) * 1992-07-03 1994-08-19 Saint Laurent Parfums Yves Improvements to product dispenser and metering devices.
US5803312A (en) * 1994-06-08 1998-09-08 The Coca-Cola Company Manually operable postmix juice dispenser and disposable concentrate package therefor
FR2732950B1 (en) * 1995-04-13 1997-07-04 Sofab DEVICE FOR PACKAGING AND DISPENSING A LIQUID OR PASTY PRODUCT
DE29717034U1 (en) * 1997-09-23 1999-01-28 Josef Wischerath Gmbh & Co. Kg, 50259 Pulheim Dispenser pump, dispenser and modular dispenser system
US6013270A (en) * 1998-04-20 2000-01-11 The Procter & Gamble Company Skin care kit
FR2797255B1 (en) * 1999-08-06 2001-10-05 Oreal MEMBRANE PUMP FOR CONTAINER
DE20110604U1 (en) 2001-06-29 2002-11-14 Lorscheidt, Willy, 50259 Pulheim Dispenser for pasty product
EP1436212B1 (en) * 2001-09-20 2009-07-01 Ben Z. Cohen Microdispensing pump
EP1531945B1 (en) * 2002-06-18 2009-03-11 Airspray International B.V. Dispensing unit
NL1020890C2 (en) * 2002-06-18 2003-12-19 Airspray Nv Fluid substance dispensing unit, has reservoir assembly and pump assembly that are separate and coupled to one another, such that in uncoupled state each reservoir can be filled through outlet of reservoir
JP4046056B2 (en) 2003-09-22 2008-02-13 いすゞ自動車株式会社 diesel engine
DE10354052A1 (en) * 2003-11-17 2005-06-16 Beiersdorf Ag Cosmetic with delicate ingredients
DE10354051A1 (en) * 2003-11-17 2005-06-16 Beiersdorf Ag Dispensers containing cosmetic preparations containing aids for keeping the donor in motion
US7264142B2 (en) 2004-01-27 2007-09-04 Medical Instill Technologies, Inc. Dispenser having variable-volume storage chamber and depressible one-way valve assembly for dispensing creams and other substances
NL1029155C2 (en) * 2004-10-19 2006-04-20 Sara Lee De Nv System and method for preparing a drink suitable for consumption.
DE102005049531B4 (en) * 2005-04-25 2021-10-28 Rpc Bramlage Gmbh Dispenser for liquid or pasty materials
DE102005025371A1 (en) * 2005-05-31 2006-12-07 Seaquist Perfect Dispensing Gmbh Device for dispensing a preferably cosmetic fluid
DE102006013789A1 (en) * 2005-12-16 2007-06-28 Rpc Bramlage Gmbh Dispensers for liquid and / or pasty masses
DE102006012302A1 (en) 2006-03-15 2007-09-27 Seaquist Perfect Dispensing Gmbh dispenser
DE102006030741A1 (en) * 2006-04-04 2007-10-11 Seaquist Perfect Dispensing Gmbh Dosing valve and device for dispensing a preferably cosmetic liquid
DE102006030829B4 (en) * 2006-05-12 2019-10-24 Aptar Dortmund Gmbh Dispensing device and method for its manufacture
EP2018228B1 (en) * 2006-05-16 2016-08-17 Aptar Dortmund GmbH Dispensing device
DE102006027042A1 (en) * 2006-06-08 2007-12-13 Seaquist Perfect Dispensing Gmbh dispenser
US8261952B2 (en) * 2006-09-07 2012-09-11 Seaquist Perfect Dispensing Gmbh Dispensing device
FR2905681B1 (en) * 2006-09-07 2010-10-15 Rexam Dispensing Sys DISPENSER WITHOUT RETURNING AIR TO DISPENSE A VISCOUS FLUID PRODUCT.
EP1935390A1 (en) * 2006-12-19 2008-06-25 Crystal Clear International Limited Fluid dispensing and massage device
GB2437060A (en) * 2006-12-19 2007-10-17 Crystal Clear Internat Ltd Cosmetic lotion dispenser with massager
DE102007049614B4 (en) 2007-03-15 2015-03-05 Aptar Dortmund Gmbh dispenser
EP2135822B1 (en) * 2008-06-20 2013-08-21 Aptar Dortmund GmbH Dispensing device
US8286839B2 (en) * 2008-08-12 2012-10-16 Aptar Dortmund Gmbh Dispensing device
DE102008038654B4 (en) 2008-08-12 2019-09-19 Aptar Dortmund Gmbh Dispensing head with swiveling valve element
DE102009030627B4 (en) 2009-06-25 2020-03-12 Aptar Dortmund Gmbh Valve and dispenser
DE102009045798A1 (en) 2009-10-19 2010-08-05 Henkel Ag & Co. Kgaa Cosmetic agent, useful for lightening e.g. skin, comprises peroxidase and substrate for hydrogen peroxide producing enzyme in a first container, and hydrogen peroxide producing enzyme and substrate for the peroxidase in a second container
DE102010009797B4 (en) 2010-03-01 2011-11-10 Inotech Kunststofftechnik Gmbh Dispenser device with polymeric elastic element and method for its actuation
DE202010009751U1 (en) * 2010-07-01 2011-09-02 Werner Holzmann Dispensers
DE202010011248U1 (en) * 2010-08-08 2011-09-01 Anton Brugger Dispensers
US20120160872A1 (en) * 2010-12-27 2012-06-28 Anne Berg Co., Ltd. Pump structure for dispenser
US20120160873A1 (en) * 2010-12-27 2012-06-28 Plastic Industry Development Center Dispenser for adjusting rationing liquid
ITVI20130130A1 (en) * 2013-05-08 2014-11-09 Taplast Srl DEVICE FOR DISTRIBUTION OF FLUIDS.
KR101472788B1 (en) * 2013-12-16 2014-12-16 (주)연우 Pump vessel for dispensing of capsule
US9801505B2 (en) 2013-12-20 2017-10-31 Toaster Labs, Inc. Automatic fluid dispenser
US10098510B2 (en) 2013-12-20 2018-10-16 Toaster Loabs, Inc. Pneumatically driven fluid dispenser
US10144032B2 (en) * 2013-12-20 2018-12-04 Toaster Labs, Inc. Inductively heatable fluid reservoir
US9974416B2 (en) 2013-12-20 2018-05-22 Toaster Labs, Inc. Automatic heated fluid dispenser
US10433372B2 (en) 2013-12-20 2019-10-01 Toaster Labs, Inc. Portable fluid warming device
US10189038B2 (en) 2013-12-20 2019-01-29 Toaster Labs, Inc. Inductively heatable fluid reservoir for various fluid types
CN103832700B (en) * 2014-03-21 2016-06-22 甘文兵 Mastic automatic extruder
KR101501027B1 (en) * 2014-06-16 2015-03-12 (주)연우 Pump vessel for dispensing of capsule
WO2016062716A2 (en) * 2014-10-20 2016-04-28 Rieke Packaging Systems Limited Pump dispensers
CN107690412B (en) 2015-04-06 2020-05-05 约翰逊父子公司 distribution system
RU2715848C1 (en) * 2016-07-18 2020-03-03 Рпк Брамлаге Гмбх Dispenser for masses from liquid to pastelike
US10335816B1 (en) 2018-08-29 2019-07-02 Armin Arminak All plastic water resistant pump
USD991785S1 (en) 2020-01-31 2023-07-11 Armin Arminak Lotion pump actuator
CN112061605A (en) * 2020-09-14 2020-12-11 姜生根 Skin care products are with extrusion device
CA3228921A1 (en) * 2021-09-23 2023-03-30 Apackaging Group Llc All plastic airless pump dispenser
US11957178B2 (en) 2021-11-15 2024-04-16 Apackaging Group Llc Aerosol actuator
CN114735350A (en) * 2022-04-14 2022-07-12 赵海 Cosmetic bottle capable of accurately controlling dosage
WO2025160926A1 (en) 2024-02-02 2025-08-07 The Procter & Gamble Company Pump dispenser

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB221750A (en) * 1924-03-31 1924-09-18 Jonas Albert Weyland Improved closure for receptacles for sauces, jellies, mustard and similar goods
US3146920A (en) * 1962-03-08 1964-09-01 Mead Johnson & Co Dispenser for metered amounts of fluid
DE1259203B (en) * 1963-11-30 1968-01-18 Roder Gottfried Valve for small pumps made of plastic parts
US3268123A (en) * 1964-04-21 1966-08-23 Walter B Spatz Dispensers for fluent masses
JPS5748768Y2 (en) * 1974-07-12 1982-10-26
JPS5538783U (en) * 1978-09-07 1980-03-12
DE2901717A1 (en) * 1979-01-17 1980-07-31 Joachim Czech DISPENSER FOR PASTOESE PRODUCTS
JPS56107341U (en) * 1980-01-17 1981-08-20
EP0084638B1 (en) * 1982-01-19 1987-12-23 Gap Gesellschaft Für Auswertungen Und Patente Ag Dispenser for pasty products
US4515298A (en) * 1982-02-01 1985-05-07 Joachim Czech Dispenser for paste-like products with manually actuable piston including insert device
US4485943A (en) * 1982-03-08 1984-12-04 Joachim Czech Dispenser for liquids or pasty products
JPS59112772U (en) * 1983-01-18 1984-07-30 株式会社吉野工業所 Creamy storage container
US4561571A (en) * 1983-08-29 1985-12-31 Chen Jason K S Washing liquid supplier
DE3408762A1 (en) * 1984-03-09 1985-09-12 Josef Wischerath GmbH & Co KG, 5000 Köln Dispenser for pasty products
JPH0829790B2 (en) * 1984-03-14 1996-03-27 カルマー・インコーポレーテッド Viscous product dispenser with externally located outlet valve with idle motion to cut dispensed product
US4685594A (en) * 1986-07-03 1987-08-11 Manuel Czech Dispenser for paste-like products

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CA1304328C (en) 1992-06-30
DE3782829D1 (en) 1993-01-14
DE3601311A1 (en) 1987-07-23
ES2037012T3 (en) 1993-06-16
US4875604A (en) 1989-10-24
AU599350B2 (en) 1990-07-19
EP0230252B1 (en) 1992-12-02
EP0230252A3 (en) 1988-06-29
EP0230252A2 (en) 1987-07-29
ATE82927T1 (en) 1992-12-15
ES2037012T5 (en) 1996-04-01
JP2568830B2 (en) 1997-01-08
JPS62182079A (en) 1987-08-10
AU6703186A (en) 1987-07-23
GR3006463T3 (en) 1993-06-21
GR3018396T3 (en) 1996-03-31

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