EP0179342B1 - Dispenser for pasty materials - Google Patents

Dispenser for pasty materials Download PDF

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Publication number
EP0179342B1
EP0179342B1 EP85112637A EP85112637A EP0179342B1 EP 0179342 B1 EP0179342 B1 EP 0179342B1 EP 85112637 A EP85112637 A EP 85112637A EP 85112637 A EP85112637 A EP 85112637A EP 0179342 B1 EP0179342 B1 EP 0179342B1
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EP
European Patent Office
Prior art keywords
tube
housing
dispenser
piston
ceiling
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
Application number
EP85112637A
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German (de)
French (fr)
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EP0179342A3 (en
EP0179342A2 (en
Inventor
Herbert Mettenbrink
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.)
Bramlage GmbH
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Bramlage GmbH
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 Bramlage GmbH filed Critical Bramlage GmbH
Priority to AT85112637T priority Critical patent/ATE34358T1/en
Publication of EP0179342A2 publication Critical patent/EP0179342A2/en
Publication of EP0179342A3 publication Critical patent/EP0179342A3/en
Application granted granted Critical
Publication of EP0179342B1 publication Critical patent/EP0179342B1/en
Expired legal-status Critical Current

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    • 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
    • B05B11/1032—Pumps having a pumping chamber with a deformable wall actuated without substantial movement of the nozzle in the direction of the pressure stroke
    • 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 dispenser for pasty masses, with a housing which has a piston which can only be displaced in the direction of emptying and an external actuating handle which is formed on a bellows which can be compressed in the direction of the piston and which has a dispenser outlet opening, directed inwards a tube that is freely immersed in the pasty mass with its inner mouth end in every position of the bellows.
  • a donor of this type is known from DE-OS-3 042 285.
  • the pasty mass in the tube acts as a valve.
  • the pulling of the piston over the product column takes place primarily. H. before the remaining amount in the tube, which acts like a stopper, could balance the vacuum with air.
  • the piston is locked in the other direction by using a so-called clamping module.
  • the latter is attached to the wide surface of the piston facing the housing end on the installation side; it is a multi-pointed star-shaped component made of spring steel.
  • the diameter circumscribing the serrated ends is larger than the inside diameter of the housing, as a result of which the serrated ends hook onto the inner wall of the housing as inclined support feet.
  • Such a component is relatively complex for a disposable mass article.
  • Another assembly step is also created.
  • relatively high frictional forces have to be overcome, which places certain limits on the viscosity.
  • the object of the invention is to provide a generic dispenser in a technically simple, stable design so that the one-sided displacement of the piston is realized without components on the piston.
  • the structural means are simple in that a flap valve is located below the inner mouth end of the tube in the ceiling of the housing, from which a collar for the bellows extends, with a passage opening lying in the direction of the tube.
  • a flap valve can be easily molded onto the functional part.
  • the economy is high.
  • significantly lower frictional forces occur on the piston, which also benefits functional reliability and also allows the use of a wide range of contents with regard to viscosity.
  • the maximum length of the bellows interior is used for the tube, and on the other hand, this assignment also results in a certain actuation end stop for the bellows over the tube.
  • a largely loss-free output can be achieved with simple means in that the piston forms on its upper side a flat wall running parallel to the housing cover that centrally supports the valve flap. The upper side expediently closes off with one of the usual edge lips of the piston.
  • valve flap valve design it is expedient to proceed in such a way that the valve flap of the housing cover is integrally formed on the periphery of the same material over a thinned cross-section, according to which a pretension is inherent when the valve flap is sprayed in the vertical position facing the housing and through threading through the passage opening.
  • the valve flap is always safely loaded solely from the restoring force inherent in the material in the closing direction.
  • there is the, albeit low, weight of the valve flap taking into account the normally occurring position of use.
  • the long cylindrical housing 1 contains a piston 2. Its edge lips 2 'lead to the cylindrical Housing inner wall 1 '.
  • the housing 1 is open from the inside, but can be closed by means of a clip-in base plate 3.
  • the output-side closure of the housing 1 is formed by an actuating handle H arranged opposite the widened base base 4 of the same. It is a bellows-type headpiece 5 that can be compressed in the direction of the piston 2 and always spontaneously straightens up to its basic position. The latter is on a housing 1 narrowed collar 6 attached. A thread-stable or ring-groove engagement in cooperation with the restoring force of the flexible material forming the head piece 5 provides a stable connection between the two parts.
  • the head piece 5 forms a cross-section-reduced dispenser outlet opening O.
  • a tube 7 protruding from the latter extends into the interior R 1 of the dome-shaped head piece 5. With its end on the outlet opening side, it is rooted close to the edge both in the ceiling 5 'of the head piece 5 and partly in the wall 5 "thereof. This wall 5" is slightly fitted.
  • the tube merges into a protrusion 7 "'formed by the head piece 5, the ceiling 5, which is somewhat superior.
  • the tube 7 extends at an acute angle to the longitudinal center axis yy of the tubular or cylindrical housing 1. The angle designated by alpha is approximately 25 °.
  • the tube can also run parallel to the axis yy, which would be cheaper in terms of injection technology.
  • the tube protrudes almost into the region of the extended jacket plane of the housing 1.
  • the inner mouth end 7 " points essentially into the center of an interior R1 of the head piece 5 from the storage space R 2 of the housing 1 partitioning ceiling 8.
  • the latter extends parallel to the base St and is molded onto the housing 1.
  • the distance between the inner end of the mouth 7 "and the top of the ceiling 8 corresponds approximately to the inside diameter of the tube 7.
  • the inner mouth end section of the tube 7 extends in an overlap with the curb 6.
  • a flap valve 9 In the middle area of the ceiling 8 there is a flap valve 9. The latter extends over the edge of a passage opening 10 of the ceiling 8.
  • the outline shape of the folding valve 9 results from FIG. 4.
  • the outline shape of the passage opening is designed accordingly.
  • the valve flap 9 ' occurs as a molding on the ceiling.
  • the hinge point is formed by a thinned cross section, a so-called film hinge.
  • the film hinge 11 extends over the entire width of the valve flap 9 ', all of whose edges are chamfered.
  • there is a thin-lipped edge which lies on the hole edge 10 'of the passage opening 10, which is also thinned by the wall.
  • valve flap 9 'of the housing cover 8 is molded during the injection molding process in the vertical position directed towards the contact surface St (see FIG. 3, alignment in solid lines), followed by after the hardening, the flexible valve flap 9 'is threaded through the valve hole 10. 90 ° are used to form the preload. This orientation is also favorable in terms of injection technology. No cross slides need to be attached.
  • a slightly roof-shaped profile is selected, as can be seen from the sectional illustration in FIG. 2.
  • the ridge line 12 runs parallel to the direction of extension of the film hinge 11.
  • the ridge line crosses the longitudinal center line y-y.
  • the piston 2 forms on its upper side a flat wall 13 which runs parallel to the housing cover 8 which centrally supports the valve flap 9 '.
  • the latter is part of a cover-side protuberance of a piston middle wall 14, which is rooted in the cylindrical section of the piston in the middle between the ring planes of the edge lips 2 ', 2 ".
  • this dispenser can be reused with a corresponding pulling device on the piston 2, i. H. refill from a larger storage container.
  • the base plate 3 must first be removed.
  • the piston 2 can be easily reintroduced by correspondingly chamfering the region of the housing inner wall 1 'near the bottom.
  • the base plate 3 contains an opening, which can also be used as a pulling aid.
  • the zone forming the bellows 6 of the head piece 5 is achieved by a horizontal, flat V-shaped constriction E. This constriction extends over half the cross-sectional width of the head piece 5 on the side facing away from the opening ⁇ .
  • the bellows groove is designated 15 (Fig. 2).
  • the acute-angled assignment of the tube 7 in the part of the head piece opposite the indentation E is such that the When the bellows is actuated, the tube swings out peripherally from the area of the valve flap 9 which is at a distance and flips up and practically tilts into a position parallel to the longitudinal center axis yy.
  • the section of the curb 6 there can serve as a stop.
  • the film hinge is located at a distance corresponding to the tube diameter from the section of the curb 6 there.
  • the head piece 5 is covered by a cover cap 16.
  • the latter has an outer diameter which corresponds to that of the housing 1. This results in a smooth continuation of the cylindrical shape up to the cap area.
  • the cover cap 16 can be clipped on.
  • the corresponding means are molded on the edge and interact with those of the head piece edge.
  • the cover cap has a further development in that it is included in the securing of a sealing plug 17, which is inserted into the dispenser outlet opening ⁇ , in that a portion 18 'of an annular rib 18 formed on the inner surface of the cup-shaped cover cap acts on the plug back. This back is inclined, the end face of the annular rib 18 is chamfered accordingly.
  • the back of the stopper continues into an edge which, projecting above the end edge of the tube, merges into an inward pull tab 19.
  • the latter is angled and runs essentially parallel to the slightly curved ceiling of the cap, which ends in the edge areas in a stronger transverse curvature, which is followed by the cylindrical jacket wall of the cap.
  • the function of the dispenser described is as follows: after the cover cap 16 has been removed, the head piece 5 in the region forming the bellows B, which is ruffled on the upper side or roughened in some other way, is pressed downward in the direction of the piston 2. This only creates pressure on the folding valve 9.
  • the pasty mass (not shown) present in the interior R1 pushes through the tube 7 due to the reduction in volume within the head piece in the direction of the outlet opening ⁇ and finally emerges from the outer mouth end 7 '. If the head piece 5 is now relieved, negative pressure is created in the interior R1.
  • the flexible head piece 5 returning to its basic position now pulls the piston 2 in the direction of the arrow x over the filling material column.
  • the resetting is completed before the mass remaining in the tube could reach or leave the inner mouth end 7 "as a plug.
  • the negative pressure causes the valve flap 9 'to fold up in the direction of discharge (arrow z); the head piece 5 sucks over the Passage opening 10 full.
  • the spring-loaded valve flap 9 'returns to its closed position. It is crucial in all of this that the cross-section and length of the tube 7, in coordination with the viscosity of the pasty mass and the flow rate that occurs, form a corresponding resistance which bridges the vacuum that occurs .

Abstract

1. Dispenser for pasty materials, with a housing (1) having a piston (2) shiftable in the emptying direction only, and with an outer actuating handle (H) formed on a headpiece (5) compressible in the direction of the piston in a concertina-like manner and having a dispenser outflow orifice (·O), from which extends an inwardly directed tube (7) dipping freely into the pasty material by means of its inner mouth end in any position of the concertina (B), characterized in that underneath the inner mouth end (7") of the tube (7) in the ceiling (8) of the housing (1), from which extends an attachment collar (6) for the concertina (B), there is a flap valve (9) with a through-orifice (10) located in the direction of the tube (7) (arrow z).

Description

Die Erfindung bezieht sich auf einen Spender für pastöse Massen, mit einem einen nur in Entleerungsrichtung verlagerbaren Kolben aufweisenden Gehäuse und einer außenliegenden Betätigungshandhabe, die an einem balgartig in Richtung des Kolbens zusammendrückbaren Kopfstück ausgebildet ist, welches eine Spender-Austrittsöffnung aufweist, von der einwärts gerichtet ein mit seinem inneren Mündungsende in jeder Stellung des Balges frei in die pastöse Masse eingetauchtes Röhrchen ausgeht.The invention relates to a dispenser for pasty masses, with a housing which has a piston which can only be displaced in the direction of emptying and an external actuating handle which is formed on a bellows which can be compressed in the direction of the piston and which has a dispenser outlet opening, directed inwards a tube that is freely immersed in the pasty mass with its inner mouth end in every position of the bellows.

Ein Spender dieser Art ist durch die DE-OS-3 042 285 bekannt. Die im Röhrchen stehende pastöse Masse übt Ventilfunktion aus. Das Nachziehen des Kolbens über die Füllgutsäule geschieht vorrangig, d. h. ehe die stopfenartig sperrend wirkende Restmenge im Röhrchen das entstehende Vakuum mit Luft ausgleichen könnte. Die Sperrung des Kolbens in der anderen Richtung erfolgt durch Einsatz eines sogenannten Klemmoduls. Letzterer ist auf die dem aufstellseitigen Gehäuseende zugewandten Breitfläche des Kolbens aufgesteckt; es handelt sich um ein mehrzackiges sternförmiges Bauteil aus Federstahl. Der die Zackenenden umschreibende Durchmesser ist größer als der lichte Durchmesser des Gehäuses, wodurch sich die Zackenenden als schrägstehende Stützfüße an der Gehäuseinnenwandung verhaken. Ein solches Bauteil ist für einen Einweg-Massenartikel relativ aufwendig. Auch entsteht ein weiterer Montageschritt. Hinzu kommt, daß verhältnismäßig hohe Reibungskräfte zu überwinden sind, wodurch hinsichtlich der Viskosität bestimmte Grenzen gesetzt sind.A donor of this type is known from DE-OS-3 042 285. The pasty mass in the tube acts as a valve. The pulling of the piston over the product column takes place primarily. H. before the remaining amount in the tube, which acts like a stopper, could balance the vacuum with air. The piston is locked in the other direction by using a so-called clamping module. The latter is attached to the wide surface of the piston facing the housing end on the installation side; it is a multi-pointed star-shaped component made of spring steel. The diameter circumscribing the serrated ends is larger than the inside diameter of the housing, as a result of which the serrated ends hook onto the inner wall of the housing as inclined support feet. Such a component is relatively complex for a disposable mass article. Another assembly step is also created. In addition, relatively high frictional forces have to be overcome, which places certain limits on the viscosity.

Aufgabe der Erfindung ist es, einen gattungsgemäßen Spender in herstellungstechnisch einfacher, gebrauchsstabiler Bauform so auszubilden, daß die Einseitig-Verlagerung des Kolbens ohne Bauteile am Kolben verwirklicht wird.The object of the invention is to provide a generic dispenser in a technically simple, stable design so that the one-sided displacement of the piston is realized without components on the piston.

Gelöst ist diese Aufgabe durch die im Anspruch 1 angegebene Erfindung.This object is achieved by the invention specified in claim 1.

Die Unteransprüche sind vorteilhafte Weiterbildungen des erfindungsgemäßen Spenders.The subclaims are advantageous developments of the dispenser according to the invention.

Zufolge solcher Ausgestaltung kann der relativ teure Klemmodul entfallen. Trotzdem ist die gewohnte Gebrauchszuverlässigkeit beibehalten. Die baulichen Mittel sind einfach, indem sich unterhalb des inneren Mündungsendes des Röhrchens in der Decke des Gehäuses, von welcher ein Aufsatzkragen für den Balg ausgeht, ein Klappenventil befindet, mit in Richtung des Röhrchens liegender Durchtrittsöffnung. Ein solches Klappenventil läßt sich in einfacher Weise gleich am Funktionsteil mitanformen. Es liegt eine hohe Wirtschaftlichkeit vor. Außerdem treten erheblich geringere Reibungskräfte am Kolben auf, was zusätzlich der Funktionssicherheit zugutekommt und überdies die Verwendung einer breiten Füllgut-Palette hinsichtlich der Viskosität zuläßt. Es entsteht lediglich ein Druck auf die Ventilklappe und nicht mehr auf dem Kolben. Vorteilhaft ist es erfindungsgemäß weiter, daß der innere Mündungsendabschnitt des Röhrchens in Überlappung liegt zum Aufsatzkragen. Zum einen wird die maximale Länge des Balginnenraumes für das Röhrchen genutzt, zum anderen ergibt sich aus dieser Zuordnung auch ein gewisser Betätigungs-Endanschlag für den Balg über das Röhrchen. Eine weitgehend verlustfreie Ausgabe läßt sich mit einfachen Mitteln dadurch erreichen, daß der Kolben an seiner Oberseite eine parallel zu der die Ventilklappe zentral tragenden Gehäusedecke verlaufende, ebenflächige Wand bildet. Zweckmäßig schließt dabei die Oberseite mit der einen der üblichen Randlippen des Kolbens ab. Hinsichtlich der Klappenventilausbildung wird zweckmäßig so vorgegangen, daß die Ventilklappe der Gehäusedecke peripher materialeinheitlich über einen verdünnten Querschnitt angeformt ist, welchem zufolge Spritzens der Ventilklappe in gehäuseeinwärts gerichteter Senkrechtstellung und durch Durchfädeln durch die Durchtrittsöffnung eine Vorspannung innewohnt. So ist die Ventilklappe stets sicher allein aus der dem Material innewohnenden Rückstellkraft in Schließrichtung belastet. Hinzu kommt noch das, wenn auch geringe, Eigengewicht der Ventilklappe, und zwar unter Berücksichtigung der üblicherweise auftretenden Gebrauchsstellung. Bezüglich einer Langzeit-Aufbewahrung des Spenders dürfte es schließlich noch von Nutzen sein, daß ein Verschlußstopfen der Spender-Austrittsöffnung von einem Teilabschnitt einer Ringrippe an der Deckeninnenfläche einer topfförmigen, im Querschnitt runden Abdeckkappe beaufschlagt ist. Bei Ingebrauchnahme des Spenders ist es nicht mehr erforderlich, den Verschlußstopfen stets wieder dem Röhrchen zuzuordnen, da dessen Inhalt durch den permanenten Feuchteanschluß an den ausgabenahen Restvorrat in der üblicherweise zugrundezulegenden Aufbrauchzeit nicht austrocknen kann, zumal die Abdeckkappe stets wieder zugeordnet werden kann.As a result of such a configuration, the relatively expensive clamping module can be dispensed with. Nevertheless, the usual reliability of use is maintained. The structural means are simple in that a flap valve is located below the inner mouth end of the tube in the ceiling of the housing, from which a collar for the bellows extends, with a passage opening lying in the direction of the tube. Such a flap valve can be easily molded onto the functional part. The economy is high. In addition, significantly lower frictional forces occur on the piston, which also benefits functional reliability and also allows the use of a wide range of contents with regard to viscosity. There is only pressure on the valve flap and no longer on the piston. It is also advantageous according to the invention that the inner mouth end section of the tube overlaps the collar. On the one hand, the maximum length of the bellows interior is used for the tube, and on the other hand, this assignment also results in a certain actuation end stop for the bellows over the tube. A largely loss-free output can be achieved with simple means in that the piston forms on its upper side a flat wall running parallel to the housing cover that centrally supports the valve flap. The upper side expediently closes off with one of the usual edge lips of the piston. With regard to the flap valve design, it is expedient to proceed in such a way that the valve flap of the housing cover is integrally formed on the periphery of the same material over a thinned cross-section, according to which a pretension is inherent when the valve flap is sprayed in the vertical position facing the housing and through threading through the passage opening. The valve flap is always safely loaded solely from the restoring force inherent in the material in the closing direction. In addition, there is the, albeit low, weight of the valve flap, taking into account the normally occurring position of use. With regard to long-term storage of the dispenser, it should finally be useful that a plug of the dispenser outlet opening is acted upon by a partial section of an annular rib on the inner surface of a pot-shaped cover cap with a round cross-section. When the dispenser is put into use, it is no longer necessary to always re-assign the stopper to the tube, since its content cannot dry out in the usual period of use due to the permanent moisture connection to the near-dispensing remainder, especially since the cover cap can always be reassigned.

Der Gegenstand der Erfindung ist nachstehend anhand eines zeichnerisch veranschaulichten Ausführungsbeispieles näher erläutert. Es zeigt

  • Fig. 1 den erfindungsgemäß ausgebildeten Spender in Vorderansicht, und zwar bei abgenommener Abdeckkappe, teilweise aufgebrochen,
  • Fig. 2 den Schnitt gemäß Linie 11-11 in Fig. 1,
  • Fig. 3 eine Draufsicht auf Fig. 2, jedoch bei abgenommener Abdeckkappe und
  • Fig. 4 eine Herausvergrößerung der Anbindungszone der Ventilklappe, und zwar in der Spritzstellung und in strichpunktierter Linienart in der Gebrauchs-Grundstellung.
The subject matter of the invention is explained in more detail below on the basis of an illustrative embodiment. It shows
  • 1 is a front view of the dispenser designed according to the invention, namely with the cover cap removed, partially broken away,
  • 2 shows the section along line 11-11 in Fig. 1,
  • Fig. 3 is a plan view of Fig. 2, but with the cover cap and
  • Fig. 4 is an enlargement of the connection zone of the valve flap, in the spray position and in dash-dotted lines in the basic position of use.

Das lang zylindrisch ausgebildete Gehäuse 1 enthält einen Kolben 2. Dessen Randlippen 2' führen sich an der zylindrischen Gehäuseinnenwandung 1'. Das Gehäuse 1 ist von Hause aus offen, jedoch mittels einer einklipsbaren Bodenplatte 3 verschließbar.The long cylindrical housing 1 contains a piston 2. Its edge lips 2 'lead to the cylindrical Housing inner wall 1 '. The housing 1 is open from the inside, but can be closed by means of a clip-in base plate 3.

Den ausgabeseitigen Abschluß des Gehäuses 1 bildet eine dem verbreiterten Standsockel 4 desselben gegenüberliegend angebrachte Betätigungshandhabe H. Es handelt sich um ein balgartig in Richtung des Kolbens 2 zusammendrückbares, sich stets spontan wieder in seine Grundstellung aufrichtendes Kopfstück 5. Letzteres ist auf einen gegenüber dem Gehäuse 1 verschmälerten Aufsatzkragen 6 aufgesteckt. Über einen Gewinde- oder Ring-Nuteingriff im Zusammenwirken mit der Rückstellkraft des das Kopfstück 5 bildenden flexiblen Materiales liegt eine gebrauchsstabile Verbindung der beiden Teile aneinander vor.The output-side closure of the housing 1 is formed by an actuating handle H arranged opposite the widened base base 4 of the same. It is a bellows-type headpiece 5 that can be compressed in the direction of the piston 2 and always spontaneously straightens up to its basic position. The latter is on a housing 1 narrowed collar 6 attached. A thread-stable or ring-groove engagement in cooperation with the restoring force of the flexible material forming the head piece 5 provides a stable connection between the two parts.

Das Kopfstück 5 formt eine querschnittsverringerte Spender-Austrittsöffnung O. Von letzterer geht ein in den Innenraum R 1 des domförmig gestalteten Kopfstückes 5 hineinragendes Röhrchen 7 aus. Es wurzelt mit seinem austrittsöffnungsseitigen Ende randnah sowohl in der Decke 5' des Kopfstückes 5 als auch teilweise in der Wandung 5" desselben. Diese Wandung 5" ist leicht tailliert. Das Röhrchen geht in eine vom Kopfstück 5 gebildete, die Decke 5, noch etwas überragende Ausstülpung 7"' über. Neben einer gleich spritztechnischen Anformung des Röhrchens besteht natürlich auch die Möglichkeit, dieses als separates Bauteil zu erstellen und schweißtechnisch oder im Wege einer Klebeverbindung am Kopfstück 5 zu haltern. Wie Fig. 2 entnehmbar, erstreckt sich das Röhrchen 7 spitzwinklig geneigt zur Längsmittelachse y-y des rohrförmigen bzw. zylindrischen Gehäuses 1. Der mit alpha bezeichnete Winkel beträgt ca. 25°. Das Röhrchen kann auch parallel zur Achse y-y verlaufen, was spritztechnisch günstiger wäre.The head piece 5 forms a cross-section-reduced dispenser outlet opening O. A tube 7 protruding from the latter extends into the interior R 1 of the dome-shaped head piece 5. With its end on the outlet opening side, it is rooted close to the edge both in the ceiling 5 'of the head piece 5 and partly in the wall 5 "thereof. This wall 5" is slightly fitted. The tube merges into a protrusion 7 "'formed by the head piece 5, the ceiling 5, which is somewhat superior. In addition to the injection molding of the tube, there is of course also the possibility of creating this as a separate component and welding it or by means of an adhesive connection on 2, the tube 7 extends at an acute angle to the longitudinal center axis yy of the tubular or cylindrical housing 1. The angle designated by alpha is approximately 25 °. The tube can also run parallel to the axis yy, which would be cheaper in terms of injection technology.

Das Röhrchen ragt mit seinem die Austrittsöffnung Ö bildenden äußeren Mündungsende 7' nahezu bis in den Bereich der verlängerten Mantelebene des Gehäuses 1. Das innere Mündungsende 7" dagegen weist im wesentlichen in das Zentrum einer den Innenraum R1 des Kopfstückes 5 vom Vorratsraum R 2 des Gehäuses 1 abteilenden Decke 8. Letztere erstreckt sich parallel zur Standfläche St und ist dem Gehäuse 1 angeformt. Der Abstand zwischen dem inneren Mündungsende 7" und der Oberseite der Decke 8 entspricht etwa dem lichten Durchmesser des Röhrchens 7. Zufolge der erläuterten Neigungslage des Röhrchens ergibt sich auch ein freier Abstand zur Innenseite des Aufsatzkragens 6.With its outer mouth end 7 'forming the outlet opening Ö, the tube protrudes almost into the region of the extended jacket plane of the housing 1. The inner mouth end 7 ", on the other hand, points essentially into the center of an interior R1 of the head piece 5 from the storage space R 2 of the housing 1 partitioning ceiling 8. The latter extends parallel to the base St and is molded onto the housing 1. The distance between the inner end of the mouth 7 "and the top of the ceiling 8 corresponds approximately to the inside diameter of the tube 7. As a result of the described inclination of the tube also a free distance to the inside of the curb 6.

Der innere Mündungsendabschnitt des Röhrchens 7 erstreckt sich in Überlappung zum Aufsatzkragen 6.The inner mouth end section of the tube 7 extends in an overlap with the curb 6.

Im Mittelbereich der Decke 8 befindet sich ein Klappenventil 9. Letzteres überfängt den Rand einer Durchtrittsöffnung 10 der Decke 8. Die Umrißform des Klappventils 9 ergibt sich aus Fig. 4. Die Umrißform der Durchtrittsöffnung ist dementsprechend gestaltet. Um den Teileaufwand gering zu halten, tritt die Ventilklappe 9' als deckenseitige Anformung auf. Die Scharnierstelle wird von einem verdünnten Querschnitt, einem sogenannten Filmscharnier gebildet. Letzteres trägt das Bezugszeichen 11. Das Filmscharnier 11 erstreckt sich über die gesamte Breite der Ventilklappe 9', deren sämtliche Ränder gefast sind. Hierdurch liegt ein dünnlippiger Rand vor, welcher sich auf den ebenfalls wandungsverdünnten Lochrand 10' der Durchtrittsöffnung 10 auflegt. Neben einer schwerkraftabhängigen Auflage ist noch zusätzlich eine federnde Anlage bewirkt, dies dadurch, daß die Ventilklappe 9' der Gehäusedecke 8 beim Spritzvorgang in gehäuseeinwärts gerichteter Senkrechtstellung zur Aufstandfläche St angeformt wird (vergl. Fig. 3, Ausrichtung in ausgezogenen Linien), woran anschließend, und zwar nach dem Erhärten die flexible Ventilklappe 9' durch das Ventilloch 10 hindurchgefädelt wird. Zur Bildung der Vorspannung sind 90° genutzt. Diese Ausrichtung ist auch spritztechnisch günstig. Es brauchen keine Querschieber angesetzt zu werden.In the middle area of the ceiling 8 there is a flap valve 9. The latter extends over the edge of a passage opening 10 of the ceiling 8. The outline shape of the folding valve 9 results from FIG. 4. The outline shape of the passage opening is designed accordingly. In order to keep the number of parts low, the valve flap 9 'occurs as a molding on the ceiling. The hinge point is formed by a thinned cross section, a so-called film hinge. The latter bears the reference number 11. The film hinge 11 extends over the entire width of the valve flap 9 ', all of whose edges are chamfered. As a result, there is a thin-lipped edge which lies on the hole edge 10 'of the passage opening 10, which is also thinned by the wall. In addition to a gravity-dependent support, a resilient system is also achieved, in that the valve flap 9 'of the housing cover 8 is molded during the injection molding process in the vertical position directed towards the contact surface St (see FIG. 3, alignment in solid lines), followed by after the hardening, the flexible valve flap 9 'is threaded through the valve hole 10. 90 ° are used to form the preload. This orientation is also favorable in terms of injection technology. No cross slides need to be attached.

Zur Erhöhung der inneren Stabilität der Ventilklappe 9' ist ein schwach dachförmiges Profil gewählt, wie es sich aus der Schnittdarstellung in Fig. 2 ergibt. Die Dachfirstlinie 12 verläuft parallel zur Erstreckungsrichtung des Filmscharniers 11. Die Firstlinie kreuzt die Längsmittellinie y-y.To increase the internal stability of the valve flap 9 ', a slightly roof-shaped profile is selected, as can be seen from the sectional illustration in FIG. 2. The ridge line 12 runs parallel to the direction of extension of the film hinge 11. The ridge line crosses the longitudinal center line y-y.

Um eine möglichst verlustfreie Ausgabe bezüglich des Behälter-Vorratsraumes R2 zu erhalten, bildet der Kolben 2 an seiner Oberseite eine parallel zu der die Ventilklappe 9' zentral tragenden Gehäusedecke 8 verlaufende, ebenflächige Wand 13 aus. Letztere ist Teil einer deckenseitigen Ausstülpung einer Kolbenmittelwand 14, welche im zylindrischen Abschnitt des Kolbens in der Mitte zwischen den Ringebenen der Randlippen 2', 2" wurzelt.In order to obtain a loss-free output with respect to the container storage space R2, the piston 2 forms on its upper side a flat wall 13 which runs parallel to the housing cover 8 which centrally supports the valve flap 9 '. The latter is part of a cover-side protuberance of a piston middle wall 14, which is rooted in the cylindrical section of the piston in the middle between the ring planes of the edge lips 2 ', 2 ".

Durch Fortfall des Klemmoduls gemäß Stand der Technik läßt sich bei einer entsprechenden Zugvorrichtung am Kolben 2 dieser Spender wiederverwenden, d. h. aus einem größeren Vorratsbehälter nachfüllen. Dazu muß zunächst die Bodenplatte 3 entfernt werden. Durch entsprechende Fasung des bodennahen Bereichs der Gehäuseinnenwandung 1' ist das Wiedereinführung des Kolbens 2 leicht durchführbar.By eliminating the clamping module according to the prior art, this dispenser can be reused with a corresponding pulling device on the piston 2, i. H. refill from a larger storage container. To do this, the base plate 3 must first be removed. The piston 2 can be easily reintroduced by correspondingly chamfering the region of the housing inner wall 1 'near the bottom.

Zum Luftausgleich enthält die Bodenplatte 3 eine Durchbrechung, die zugleich auch als Abziehhilfe nutzbar ist.For air balance, the base plate 3 contains an opening, which can also be used as a pulling aid.

Die den Balg 6 des Kopfstückes 5 formende Zone ist durch eine horizontale, flach-V-förmige Einschnürung E erzielt. Diese Einschnürung erstreckt sich über die halbe Querschnittsbreite des Kopfstückes 5 am der Öffnung Ö abgewandten Seite. Die Balgfurche ist mit 15 bezeichnet (Fig. 2).The zone forming the bellows 6 of the head piece 5 is achieved by a horizontal, flat V-shaped constriction E. This constriction extends over half the cross-sectional width of the head piece 5 on the side facing away from the opening Ö. The bellows groove is designated 15 (Fig. 2).

Die spitzwinklige Zuordnung des Röhrchens 7 in der der Einziehung E gegenüberliegenden Partie des Kopfstückes ist dergestalt, daß das Röhrchen bei Balgbetätigung aus dem Bereich der mit Abstand davor liegenden, hochklappenden Ventilklappe 9 peripher ausschwenkt und praktisch in eine raumparallele Lage zur Längsmittelachse y-y kippt. Der dortige Abschnitt des Aufsatzkragens 6 kann als Anschlag dienen. Das Filmscharnier befindet sich in einem dem Röhrchendurchmesser entsprechenden Abstand zum dortigen Abschnitt des Aufsatzkragens 6.The acute-angled assignment of the tube 7 in the part of the head piece opposite the indentation E is such that the When the bellows is actuated, the tube swings out peripherally from the area of the valve flap 9 which is at a distance and flips up and practically tilts into a position parallel to the longitudinal center axis yy. The section of the curb 6 there can serve as a stop. The film hinge is located at a distance corresponding to the tube diameter from the section of the curb 6 there.

Das Kopfstück 5 ist von einer Abdeckkappe 16 überfangen. Letztere weist einen Außendurchmesser auf, welcher dem des Gehäuses 1 entspricht. Hierdurch ergibt sich eine glatte Fortsetzung der Zylinderform bis in den Kappenbereich. Die Abdeckkappe 16 läßt sich aufklipsen. Die entsprechenden Mittel sind randseitig angeformt und wirken mit solchen des Kopfstückrandes zusammen.The head piece 5 is covered by a cover cap 16. The latter has an outer diameter which corresponds to that of the housing 1. This results in a smooth continuation of the cylindrical shape up to the cap area. The cover cap 16 can be clipped on. The corresponding means are molded on the edge and interact with those of the head piece edge.

Die Abdeckkappe weist eine Weiterbildung dahingehend auf, daß sie in die Sicherung eines Verschlußstopfens 17, der in die Spender-Austrittsöffnung Ö eingesteckt ist, einbezogen wird, indem ein Teilabschnitt 18' einer an der Deckeninnenfläche der topfförmig gestalteten Abdeckkappe angeformte Ringrippe 18 den Stopfenrücken beaufschlagt. Dieser Rücken ist schräg gestellt, die Stirnfläche der Ringrippe 18 entsprechend gefast.The cover cap has a further development in that it is included in the securing of a sealing plug 17, which is inserted into the dispenser outlet opening Ö, in that a portion 18 'of an annular rib 18 formed on the inner surface of the cup-shaped cover cap acts on the plug back. This back is inclined, the end face of the annular rib 18 is chamfered accordingly.

Der Rücken des Stopfens setzt sich in einen Rand fort, welcher, den Stirnrand des Röhrchens überragend, in eine einwärts gerichtete Zuglasche 19 übergeht. Letztere ist abgewinkelt und verläuft im wesentlichen parallel zur schwach gewölbten Decke der Abdeckkappe, die in den Randbereichen in eine stärkere Querkrümmung ausläuft, an die sich die zylindrische Mantelwand der Abdeckkappe anschließt.The back of the stopper continues into an edge which, projecting above the end edge of the tube, merges into an inward pull tab 19. The latter is angled and runs essentially parallel to the slightly curved ceiling of the cap, which ends in the edge areas in a stronger transverse curvature, which is followed by the cylindrical jacket wall of the cap.

Die Funktionsweise des beschriebenen Spenders ist wie folgt: Nach Abnehmen der Abdeckkappe 16 wird das Kopfstück 5 im den Balg B bildenden Bereich, der oberseitig quergerieft oder in anderer Weise gerauht ist, in Richtung des Kolbens 2 abwärtsgedrückt. Dabei entsteht lediglich Druck auf das Klappventil 9. Die im Innenraum R1 vorhandene pastöse Masse (nicht dargestellt) drängt unter Passieren des Röhrchens 7 zufolge Verkleinerung des Volumens innerhalb des Kopfstückes in Richtung der Austrittsöffnung Ö und tritt schließlich aus dem äußeren Mündungsende 7' aus. Wird nun das Kopfstück 5 entlastet, entsteht im Innenraum R1 Unterdruck. Das sich in seine Grundstellung zurückstellende flexible Kopfstück 5 zieht nun den Kolben 2 in Richtung des Pfeiles x über die Füllgutsäule nach. Die Zurückstellung ist abgeschlossen, bevor die noch im Röhrchen verbleibende Masse als "Stopfen" das innere Mündungsende 7" erreichen bzw. verlassen könnte. Der Unterdruck bewirkt das Hochklappen der Ventilklappe 9' in Ausgaberichtung (Pfeil z); das Kopfstück 5 saugt sich über die Durchtrittsöffnung 10 voll. Die federbelastete Ventilklappe 9' tritt wieder in ihre Schließstellung. Entscheidend bei alledem ist, daß das Röhrchen 7 in Querschnitt und Länge unter Abstimmung mit der Viskosität der pastösen Masse und der aufgetretenen Fließgeschwindigkeit einen entsprechenden Wiederstand bildet, der das auftretende Vakuum überbrückt.The function of the dispenser described is as follows: after the cover cap 16 has been removed, the head piece 5 in the region forming the bellows B, which is ruffled on the upper side or roughened in some other way, is pressed downward in the direction of the piston 2. This only creates pressure on the folding valve 9. The pasty mass (not shown) present in the interior R1 pushes through the tube 7 due to the reduction in volume within the head piece in the direction of the outlet opening Ö and finally emerges from the outer mouth end 7 '. If the head piece 5 is now relieved, negative pressure is created in the interior R1. The flexible head piece 5 returning to its basic position now pulls the piston 2 in the direction of the arrow x over the filling material column. The resetting is completed before the mass remaining in the tube could reach or leave the inner mouth end 7 "as a plug. The negative pressure causes the valve flap 9 'to fold up in the direction of discharge (arrow z); the head piece 5 sucks over the Passage opening 10 full. The spring-loaded valve flap 9 'returns to its closed position. It is crucial in all of this that the cross-section and length of the tube 7, in coordination with the viscosity of the pasty mass and the flow rate that occurs, form a corresponding resistance which bridges the vacuum that occurs .

Claims (5)

1. Dispenser for pasty materials, with a housing (1) having a piston (2) shiftable in the emptying direction only, and with an outer actuating handle (H) formed on a headpiece (5) compressible in the direction of the piston in a concertina-like manner and having a dispenser outflow orifice (0), from which extends an inwardly directed tube (7) dipping freely into the pasty material by means of its inner mouth end in any position of the concertina (B), characterized in that underneath the inner mouth end (7") of the tube (7) in the ceiling (8) of the housing (1), from which extends an attachment collar (6) for the concertina (B), there is a flap valve (9) with a through-orifice (10) located in the direction of the tube (7) (arrow z).
2. Dispenser according to Claim 1, characterized in that the inner mouth end portion of the tube (7) overlaps with the attachment collar (6).
3. Dispenser according to Claim 1, characterized in that the piston (2), on its top side, forms a plane wall (13) extending parallel to the housing ceiling (8) carrying the valve flap (9') centrally.
4. Dispenser according to Claim 1, characterized in that the valve flap (9') of the housing ceiling (8) is formed on peripherally and uniformly in terms of material over a thinned cross-section (film hinge 11), this implying a prestress as a result of the injection-moulding of the valve flap (9') in a vertical position directed inwards relative to the housing and because it is slipped through the through-orifice (10).
5. Dispenser according to Claim 1, characterized in that a closing plug (17) of the dispenser outflow orifice (0) is stressed by a part portion (18') of an annular rib (18) on the inner ceiling face of a pot-shaped cover cap (16) of round cross-section.
EP85112637A 1984-10-20 1985-10-05 Dispenser for pasty materials Expired EP0179342B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85112637T ATE34358T1 (en) 1984-10-20 1985-10-05 DISPENSER FOR PASTOESE MASS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843438579 DE3438579A1 (en) 1984-10-20 1984-10-20 MEASURE DONOR FOR PASTOESE
DE3438579 1984-10-20

Publications (3)

Publication Number Publication Date
EP0179342A2 EP0179342A2 (en) 1986-04-30
EP0179342A3 EP0179342A3 (en) 1987-04-01
EP0179342B1 true EP0179342B1 (en) 1988-05-18

Family

ID=6248438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112637A Expired EP0179342B1 (en) 1984-10-20 1985-10-05 Dispenser for pasty materials

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US (1) US4903867A (en)
EP (1) EP0179342B1 (en)
JP (1) JPS61127468A (en)
AT (1) ATE34358T1 (en)
AU (1) AU4875385A (en)
DE (2) DE3438579A1 (en)

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US4685594A (en) * 1986-07-03 1987-08-11 Manuel Czech Dispenser for paste-like products
FR2604980B1 (en) * 1986-10-13 1988-12-02 Cebal DISPENSER FOR PASTY PRODUCT AND METHOD FOR MANUFACTURING THE CORRESPONDING DISPENSER BODY
DE3634878A1 (en) * 1986-10-13 1988-04-14 Wischerath Josef Gmbh Co Kg METHOD FOR FILLING A DISPENSER WITH PASTOESE PRODUCTS AND DISPENSER FOR PASTOESE PRODUCTS
GB8624620D0 (en) * 1986-10-14 1986-11-19 Scholl Inc Fluid dispenser
FR2605983B1 (en) * 1986-11-03 1988-12-02 Cebal DISPENSER FOR PASTY PRODUCT AND METHOD FOR INTRODUCING ITS PISTON WITHIN ITS TUBULAR BODY
GR880100328A (en) * 1987-05-20 1989-02-23 Colgate Palmolive Co Dispenser for products in paste form
DE3734812A1 (en) * 1987-10-14 1989-04-27 Mega Prod Verpack Marketing MEASURE DONOR FOR PASTOESE
US5346324A (en) * 1991-09-19 1994-09-13 Youti Kuo Dentifrice dispensing toothbrush with replaceable cartridge
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US5842605A (en) * 1996-07-24 1998-12-01 Lehmkuhl; Robert A. Resuable dispenser for paste, lotion and cream-like materials
US5931352A (en) * 1997-09-11 1999-08-03 Knight Plastics, Inc. Snap-fit non-drip valve and method for assembly thereof
US5989469A (en) * 1997-09-11 1999-11-23 Knight Plastics, Inc. Method for making a non-drip valve for an inverted container
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JP5136873B2 (en) * 2006-07-14 2013-02-06 隆 片山 Container with liquid extraction nozzle
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Also Published As

Publication number Publication date
DE3562747D1 (en) 1988-06-23
EP0179342A3 (en) 1987-04-01
DE3438579A1 (en) 1986-04-30
AU4875385A (en) 1986-04-24
ATE34358T1 (en) 1988-06-15
US4903867A (en) 1990-02-27
JPS61127468A (en) 1986-06-14
EP0179342A2 (en) 1986-04-30

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