EP0376097A2 - Dispenser for pasty material - Google Patents

Abstract

The invention relates to a dispenser for pasty materials (5), having a dispensing head (2) and a material storage container, which can be connected to the dispensing head by means of positive fit in an operationally detachable manner, a piston (12), which can be moved in the discharge direction, being arranged in the storage container and the dispensing head (2) having a passage opening (7). It is proposed, especially for achieving an improved assignment of the material storage container, that the storage container, constructed as a cartridge (K) with a trailing piston (39), has a sealing collar (41) for the sealing connection to the dispensing head (2) in the region of the passage opening (7), and that the positive fitting means (M) of the cartridge (K) are located separately from the sealing collar (41). <IMAGE>

Description

The invention relates to a dispenser for pasty masses, with a dispenser head and a mass storage container operably releasably connectable to the dispenser head by means of a positive lock, wherein a piston which is movable in the dispensing direction is arranged in the storage container and the dispenser head has a passage opening.

A donor of this type is known from DE-GM 80 18 892. There the bulk storage container is connected upstream of the dispenser head. This means that the piston must be designed as a push piston. The piston rod moving it in the dispensing direction requires a length which corresponds to that of the bulk storage container. Overall, this leads to a fairly long configuration with an increased top heaviness. The dispenser, which is designed as a slender free-standing device, can easily fall over despite the widened foot and, for example, carry along utensils such as toothed cups etc. with it. The assignment of the detachable bulk storage container is done by means of the screw connection. Before that, the piston rod designed as a toothed rack must be retracted again, which is done via a gear wheel that projects laterally beyond the dispenser head area and is partially exposed for actuation.

The object of the invention is to make a generic dispenser for pasty masses such as toothpaste, cosmetics etc. more convenient, in particular with regard to the allocation of the mass storage container to improve.

This object is achieved by the invention specified in claim 1.

The subclaims are advantageous developments of the generic dispenser.

As a result of such a design, a generic dispenser of increased utility value is achieved: This is essentially due to the simplified assignment of the mass storage container, furthermore to an unmistakable docking and last but not least to the high tightness achieved of the storage container designed as a cartridge with a trailing piston, its further specific design in this way is that it has a sealing collar for sealing connection to the dispenser head in the area of the passage opening, and that the positive locking means of the cartridge are separate, that is to say they are at a spatial distance from the sealing collar. The corresponding difference in location can be brought to optimum effect from two points of view: on the one hand, the most suitable can be used for the sealing effect, in terms of space and material, under the same premise also for the form-fitting means. On the other hand, such a type of individualization also avoids the use of a storage container that does not have the corresponding features. The use of the trailing piston system implies a suction pump, so that the dispenser mechanism is spatially small. In an advantageous further development it is proposed that the sealing collar is designed to be pulled inwards with respect to the cartridge, in order to cooperate with a connecting piece of the passage opening of the dispenser head which projects into the interior of the cartridge in the composite state. The correspondingly overlapping sealing compound is particularly advantageous for the pump system with regard to the suction of the mass from the cartridge. There is not even a minimal intake of the wrong air and an associated impairment of the function. What the Form-locking means, it also proves advantageous that they are formed on the cylindrical surface of the cartridge. The antidotes are located on the dispenser housing. It is further proposed that the dispenser head forms a housing which essentially accommodates the cartridge, and that the positive locking means of the housing are formed on the lower edge thereof. This leads to an extreme spacing of the form-fit and sealants. All the spatial levels in between can be used for the indicated individualization, so that, for example, filling contents such as toothpaste, mustard, mayonnaise, color paste, sealant, cosmetics of all kinds are under control with regard to a risk of confusion. Another means of exclusion is that the cartridge forms a valve seat surface for a valve mounted in the dispenser head. Here too, the correct valve function can only be achieved if the correct cartridge is assigned. The valve seat surface is advantageously realized on the sealing collar. Such a collar has a high internal stability compared to the thin-walled cartridge cover etc. due to the shape deviating from the flat ceiling wall. Although the valve could be formed from the material of the dispenser head with a corresponding setting of the spray compound, it is proposed in a favorable further development that the valve has a valve plate designed as a free-cut tab of an anchoring plate. Such a valve can be selected in the best possible material with regard to the sealing requirements, such as the associated factors of softness or flexibility. It is advantageous that the anchoring plate is clip-fastened below the pump chamber bottom of the dispenser housing. This not only brings a simplified assembly due to free access, but also has the advantage of easy interchangeability if you want to switch from one product to the other in a donation-like manner. In terms of allocation, it proves to be advantageous that the cartridge can be detached from the dispenser head due to its superimposed axial and rotational movement. This leads to a drill-related sharpening of the remaining stock in the docking area. It is thus effectively avoided with simple means that paste-like mass is shifted from the passage area to the dispenser head, for example into the area of the wall, in order to thicken there, which would make it difficult to insert the next cartridge precisely. In order to avoid dripping or falling of pasty mass even with the largest passage opening, the passage opening of the dispenser head is chambered, that is to say it has a lattice wall-like structure, which leads to a division of the mass residue and overall increases the coefficient of friction. The dispenser head can be used as an opening tool for the cartridges. For this purpose, the construction has proceeded in such a way that a piercing mandrel is formed in the passage opening to open the cartridge mouth. This is closed, for example, by an extremely thin, skin-like wall, which is taken into account when the cartridge is manufactured. It is also advantageous that the piercing mandrel is designed as a cone tip. The latter can be part of the chambering of the passage opening. Alternatively, it is proposed that the piercing mandrel be designed as a toothed ring. Using the axial and rotational movement of the cartridge, this ring gear practically cuts a hole in the sealing wall of the wall. It is also favorable that the positive locking means of the cartridge and the dispenser sleeve are designed in the filling state in the area of the wiper lips of the piston. The piston even takes over the function in this area a kind of support core for the thin-walled cartridge. Advantageously, the positive locking zone is stiffened by wall offset. In this context, the further measure that the turning handle of the cartridge is formed by the exhibited section of the wall offset and that the front edge of this wall section forms the installation surface of the dispenser is advantageous. This creates two advantages: On the one hand, a stable, freely accessible zone is created for screwing in and unscrewing the cartridge, and on the other hand, in conjunction with the wall offset, this results in a more extended footprint for the slim, upright dispenser. Since the cartridge is inserted from this side, i.e. in the lower area of the dispenser, any top-heavyness is avoided. In addition, it is proposed that the cylinder wall of the cartridge be designed with a wall thickness that is substantially less than that of the casing, while, of course, maintaining the self-supporting stability in the empty state. This aspect is particularly important for saving material, but also has a favorable starting basis in other respects, namely in such a way that latching lugs can be easily formed on the inner wall of the cylinder wall of the cartridge, which only allow the trailing piston to move in the direction of emptying. The thin walls in particular do not cause any problems when demolding. In mechanical terms, such a backstop of the trailing piston can even dispense with an inlet valve. If the so-called hydraulic dispenser system is used in this context, in which the mass in the outlet channel itself forms a type of check valve, the requirements for an extremely inexpensive dispenser version are met. For long-term storage of the cartridges, it proves to be advantageous that the mouth of which is sealed. In order to increase the mechanical protection, the sealing skin can be attached in a plane that is somewhat set back from the mouth of the mouth. However, a protective cap is also conceivable. The end at the other end is formed by the trailing piston, which acts like a lid. In the back of which, of course, a sealing skin can also be inserted in the zone of the wall offset, which is predestined for this purpose, which must first be perforated in use. As far as the locking lugs are concerned, it is advantageous that two locking lug lines with a helical course are designed such that locking lugs of the same height are diametrically opposed to each other. This leads to a completely tilt-free overrun of the piston. A dispenser, which is designed in particular according to claim 1, wherein the dispenser head has an automatically closable dispensing tube, is further characterized by a fixed closing part which overlaps the dispensing tube from above and an axial mobility of the dispensing tube downward into the open position. This leads to a simple and extremely effective self-closing of the donor. Another form of the so-called self-closing configuration opens a solution to a dispenser, which is designed in particular according to claim 1, with a closure part molded onto the actuating handle, characterized by a dispensing tube which can be moved axially downward into the open position. A particularly advantageous development, in particular also with regard to the desired individualization, results from the measure that the cartridge has at its end facing the dispenser head a flexible, axially compressible bellows section protruding in the dispensing direction. It is therefore partially involved in the design of the dispensing device by shaping the pumping space and moreover acts as a return spring. With regard to the latter function, it proves to be advantageous for the bellows section to have folding stages which are concentric with the central opening. That brings a kind of bellows section. The opening in the center can always be brought securely into the docking position to the dispenser head even with considerable tolerance deviations due to the also radially oriented flexibility. The spring characteristic is also improved. It is further proposed that the sealing collar projecting beyond the bellows section can be screwed to the dispensing tube. This results in a doubling of the positive locking means, but also the considerable seal-related advantage that the axial actuation forces do not flow into the sealing zone itself. With regard to the tightness, design measures prove to be favorable in that the end of the dispensing tube on the cartridge side overlaps the corresponding end of the sealing collar in the manner of a screw cap, a concentric sealing cone of the dispensing tube sealingly projecting into the interior of the sealing collar. In this way, an extremely fine edge seal can be used in that the inner edge edge of the sealing collar rests on the rotationally symmetrical flank of the sealing cone. With regard to the creation of a so-called strip dispenser, in an advantageous embodiment the sealing collar continues in the opposite direction into a short tube reaching into the cartridge space, which has openings at a stepped transition point to the sealing collar for applying a mass component to the paste strand. In the case of training as a toothpaste dispenser, for example, this mass component can be a mouthwash component. A particularly favorable solution with regard to a clean media change is achieved if that Dispensing tube is part of the cartridge. Any remaining mass in this tube is easily removed from the area of the dispenser mechanism when changing the cartridge. An additional function can also be assigned to the dispensing tube if the dispensing tube designed as an extension of the bellows section is used to form a closing element, the counter-closing surface of which is the mouth opening of the dispenser head. Such a configuration also enriches the aforementioned individualization. It is further proposed that between the actuation button and the bellows section of the cartridge there is a pressure ring which, concentrically surrounding the dispensing tube, rests on the top of the basically conical bellows section. With this measure, actuation forces are concentrated and transferred equally to the bellows section. In order to assign the pressure ring to the dispenser mechanism with simple means, it is waxed with the actuation button on a transverse plane intersecting the longitudinal center axis of the rotationally symmetrical cartridge. The rich distinction between the cartridges favors the packaging of a wide variety of media and dispensing in dispenser doses. Since there are also oil-containing products under such media, for example, but oiling on the bottom would limit the acceptance of such a dispenser, the cartridge is provided with a bottom plug that has an air vent at an elevated point. The loss, albeit a small one, is so safely absorbed. An embodiment is particularly advantageous in that the bottom stopper is cup-shaped and clipped into the downwardly open end of the cartridge.

The invention further proposes that an extended end region of the dispensing tube be clip-connected is held at the top in the piston cover and that a loosely inserted outlet valve interacts with a valve seat surface formed in the piston cover. The space required for the piston in the axial direction in any case can be optimally used for the valve chamber thus created. It also proves structurally advantageous that on the one hand the piston forms the upper end of the pump chamber and on the other hand the counterclip means for the dispensing tube to be assigned and finally even the valve seat surface for the outlet valve. A favorable embodiment finally results with simple means in that the outlet valve is supported on a circumferential shoulder of the dispensing tube by means of molded-on spring struts. The heel is formed by the cross-sectional jump between the widened, relatively protruding support for the dispensing end area and the reduced cross-sectional area leading to the mouth. If this runs coaxially to the widened area, depending on the valve construction, this narrowed area can also be used to guide the output valve.

Another object of the invention relates to a dispenser system with a self-priming pump head and a replaceable cartridge. Even if the pump head is self-priming, it is desirable, in particular if the pump head is formed with a pump chamber with a valve and the second valve is replaced by the inertia of the pasty mass, so that as much pasty mass as possible penetrates into the pump chamber when the cartridge is inserted that self-priming starts easily. In this context, the dispenser system provides that the cartridge be used for the first time is designed with such an effective length that self-priming is ensured by filling the pumping chamber during the insertion of the cartridge and that a cartridge is designed for subsequent use with a short effective length that is only sufficient for an operational connection to the pumping chamber. According to the invention, different cartridges are used in this dispenser system, depending on whether it is an initial use of the cartridge or a subsequent use. After the pump chamber has been filled with pasty mass or other material to be dispensed by the dispenser through the initial use of a (filled) cartridge, it remains filled even after the cartridge has been removed and the subsequent cartridge has been inserted. The subsequent cartridge therefore no longer has to perform the function of filling the pump chamber to a certain extent. With regard to the subsequent cartridge, it is only necessary that there is a secure connection to the pump chamber. For this purpose, it is preferably provided that the pump chamber is configured so as to protrude into the cartridge in the operating position, such that a section of a pump chamber wall is in direct contact with the mass located in the cartridge. The pump chamber therefore dips into the filling level of the cartridge, which displaces the filling of the cartridge into the pump chamber. As a result, the pump chamber is - partially - filled. The extent of the protrusion of the pump chamber wall can only be designed differently with respect to a first cartridge and a subsequent cartridge. This is preferably done by changing the effective cartridge length. In a specific embodiment, this is achieved differently in the effective cartridge length by extending the cartridge above a level of the trailing piston in the filled state. The length of the first cartridge is above the Piston, in the filled state, i.e. larger than with a subsequent cartridge. Accordingly, the invention also relates to a cartridge system that consists of a first cartridge and subsequent cartridges. The outer dimensions of the first and subsequent cartridges are the same, while the filling space lengths for the first and subsequent cartridges are different. For example, a lower stand edge with different sizes is formed for this purpose. In the case of the cartridge with a smaller casing on the edge of the stand, the filling space can be extended accordingly without the overall dimensions of the first and subsequent cartridges changing (in terms of height).

• Fig. 1 den Spender gemäß dem ersten Ausführungsbei­spiel im Vertikalschnitt mit einverleibter, die pastöse Masse enthaltender Kartusche, und zwar in Schließ-Grundstellung,
• Fig. 2 auszugsweise ein Variante im Bereich des Dicht­kragens zwischen Spenderkopf und Kartusche,
• Fig. 3 einen Querschnitt durch den Spenderkopf gemäß Linie III-III in Fig. 1,
• Fig. 4 die Drauf sicht auf den Spenderkopf,
• Fig. 5 den Spender in Darstellung wie Fig. 1, jedoch in einer Betätigungs-Zwischenphase,
• Fig. 6 diesen Spender in der Betätigungs-Grundstel­lung,
• Fig. 7 einen Vertikalschnitt durch den Spender gemäß einem zweiten Ausführungsbeispiel, in Schließ-­Grundstellung,
• Fig. 8 den Schnitt gemäß Linie VIII-VIII in Fig. 7,
• Fig. 9 den Spender im Vertikalschnitt gemäß drittem Ausführungsbeispiel, in Schließ-Grundstellung,
• Fig. 10 den Spender gemäß viertem Ausführungsbeispiel, und zwar ebenfalls in Schließ-Grundstellung,
• Fig. 11 denselben in Betätigungs-Grundstellung,
• Fig. 12 im Vertikalschnitt einen Spender gemäß fünftem Ausführungsbeispiel, wiederum in Schließ-Grund­stellung,
• Fig. 13 denselben in Betätigungs-Grundstellung,
• Fig. 14 im Vertikalschnitt einen Spender gemäß sech­stem Ausführungsbeispiel, und zwar in Schließ-­Grundstellung,
• Fig. 15 denselben in Betätigungs-Grundstellung,
• Fig. 16 den Schnitt gemäß Linie XVI-XVI in Fig. 15,
• Fig. 17 die Draufsicht auf eine die Ventilklappe aus­bildende Verankerungsplatte des Ventils,
• Fig. 18 eine Kartusche im Vertikalschnitt, den Verlauf von Rastnasen verdeutlichend,
• Fig. 19 im Vertikalschnitt einen Spender gemäß siebtem Ausführungsbeispiel, und zwar in Schließ-Grund­stellung,
• Fig. 20 den Spender gemäß achtem Ausführungsbeispiel, wiederum in Schließ-Grundstellung und vertikal geschnitten,
• Fig. 21 den Spender gemäß neuntem Ausführungsbeispiel, wiederum im Schließ-Grundstellung und vertikal geschnitten,
• Fig. 22 denselben in Betätigungs-Grundstellung,
• Fig. 23 die Draufsicht auf Fig. 21, jedoch bei abgenom­mener Schutzkappe,
• Fig. 24 eine Herausvergrößerung des linken unteren Endes des Spenders gemäß Fig. 21,
• Fig. 25 das im Spendertyp gemäß Fig. 21 verwendete Aus­gangsventil in Einzeldarstellung, und zwar in Seitenansicht,
• Fig. 26 eine Draufsicht bezüglich des Gegenstandes gemäß Figur 25,
• Fig. 27 einen Spender mit jeweils teilweise eingezeich­neter Erst- und Folgekartusche,
• Fig. 28 u. 29 eine Erst- bzw. Folgekartusche in Einzeldar­stel­lung

The invention is further explained in more detail below with reference to the attached drawing, which, however, only represents exemplary embodiments. Here shows:

• 1 shows the dispenser according to the first exemplary embodiment in vertical section with an incorporated cartridge containing the pasty mass, in the basic closed position,
• 2 extracts a variant in the area of the sealing collar between the dispenser head and the cartridge,
• 3 shows a cross section through the dispenser head according to line III-III in FIG. 1,
• 4 the top view of the dispenser head,
• 5 shows the dispenser as in FIG. 1, but in an intermediate operation phase,
• 6 this dispenser in the basic actuation position,
• 7 is a vertical section through the dispenser according to a second embodiment, in the closed basic position,
• 8 shows the section along line VIII-VIII in FIG. 7,
• 9 shows the dispenser in vertical section according to the third exemplary embodiment, in the closed basic position,
• 10 shows the dispenser according to the fourth embodiment, also in the basic closed position,
• 11 the same in the basic actuation position,
• 12 is a vertical section of a dispenser according to the fifth embodiment, again in the basic closed position,
• 13 the same in the basic actuation position,
• 14 is a vertical section of a dispenser according to the sixth embodiment, namely in the closed basic position,
• 15 the same in the basic actuation position,
• 16 shows the section along line XVI-XVI in FIG. 15,
• 17 is a top view of an anchoring plate of the valve forming the valve flap,
• 18 shows a cartridge in vertical section, illustrating the course of locking lugs,
• 19 shows a vertical section of a dispenser according to the seventh exemplary embodiment, in the basic closed position,
• 20 shows the dispenser according to the eighth exemplary embodiment, again in the closed basic position and cut vertically,
• 21 the dispenser according to the ninth exemplary embodiment, again in the closed basic position and cut vertically,
• 22 the same in the basic actuation position,
• 23 shows the top view of FIG. 21, but with the protective cap removed,
• 24 shows an enlargement of the lower left end of the dispenser according to FIG. 21,
• 25 the outlet valve used in the dispenser type according to FIG. 21 in a single representation, namely in a side view,
• 26 is a top view of the object of FIG. 25;
• 27 a dispenser, each with a partially drawn-in first and subsequent cartridge,
• 28 u. 29 a first or subsequent cartridge in individual representation

A dispenser in the form of a cartridge K can be assigned to the dispensers 1 shown in the drawings. The latter is in a releasable connection, so it can be replaced at any time or replaced with a fresh cartridge. In this way, the relatively more expensive dispenser is disposable.

The dispenser head 2 of the dispenser, which is designed as a stand-alone device, contains an output mechanism, consisting of a pump 3, which can be activated via an actuation button 4 for portion-wise dispensing of paste mass 5.

The dispensing path, represented by a dash-dotted arrow line A, passes centrally through the dispenser head 2. The mass 5 passes one after the other a central opening 6 of the cartridge mouth 6 ', a passage opening 7 of the dispenser head 2, the so-called pump chamber 8, a dispensing tube 9 and finally its upward or side-facing mouth opening 10. The latter is in the closed basic position of the dispenser 1 kept locked.

The pumps 3 of the individual dispensers 1 can be designed as an inserted part of the dispenser head 2, but alternatively also from a blanket-like material section of the dispenser.

With regard to the design of the pump, two different systems are used. One consists in the design of a piston pump (Figures 1 to 9 and 14 and 15), the other in the use of a bellows pump (Figs. 10 and 12).

The piston of the piston pump bears the reference number 12. It runs in the pumps which are cylindrical in design here chamber 8, defined in both directions. At the top, the tube-like, continuously open shaft 13 of the piston 12 continues into a sleeve-shaped pressure piece 14 to which the dispensing tube 9 is connected. A clearance F is left between the pressure piece 14 and the shaft 13, which neutralizes a section of the vertical movement of the pressure piece and thus of the piston. This route is primarily carried out without piston displacement, so that at the start of the actuation the orifice opening 10 has emerged from the area of the closing part 11; Only then does the displacement process resulting from the reduction in the volume of the pump chamber 8 take place, which brings about the expression of a strand-shaped, metered portion of the pasty mass 5.

The downward displacement of the pressure piece 14 via the actuation button 4 takes place against spring loading. The corresponding compression spring incorporated into the dispenser head 2 bears the reference number 15. It is a helical compression spring, the end turn of the cartridge on which is supported on a horizontal ring wall 16 and the end turn of the push-button on the horizontal collar 17 of the pressure piece 14 finds its abutment.

The clearance F is limited by the flanks of an annular groove 18 realized in the sleeve-shaped pressure piece 14, into which an annular collar 19 molded onto the shaft 13 engages.

The actuation button is realized as a one-armed lever, which is supported on the ceiling 20 of the dispenser 1 on the actuation side and is fixedly mounted in the end area facing away from the actuation surface 4 'about a horizontal transverse axis 22. Around the Mittelbe Rich the practically the entire clear width of the dispenser lengthwise using the actuation button 4, the attack on the pressure piece 14 takes place. The latter has axially stub-like, cantilevered cross pin 23. These are overlapped in the area of a recess 24 by the legs of the U-shaped key body.

The dispenser head 2 is clipped into a housing 25 of the dispenser 1 from below and is held by means of an inner bead 26. The upper support is achieved by the wall offset of the housing 25, since an annular shoulder 27 is formed there.

The section of the housing 25 which adjoins the inner bead 26 downwards forms a sheath 28, likewise of cylindrical shape, which surrounds the cylindrical cartridge K in a protective manner in a correctly assigned position.

The pump 3 designed as a bellows pump (see FIGS. 10 and 12) uses a dome-like bellows 29. This is held on the dispenser head 2. The actuating handle 4 of this dispensing mechanism likewise uses a long-lever body, which in turn is mounted in a stationary manner on the left side by a horizontal transverse axis 22.

At the other, free end of the actuation button 4, this forms a protruding beyond the cross section of the dispenser 1, inclined actuating surface 4 '. The actuation-side end of the actuation button 4 protrudes outwards through a window 30 of the dispenser. The window defines the basic and operative position of the actuation button through the upper or lower edge of the window 30. The dome-shaped dome of the bellows 29 directly forms the dispensing tube 9 in the center.

The latter extends in the longitudinal central axis x-x of the dispenser and runs in a stationary connecting piece 31 which surrounds it and which is molded onto the underside of the cover 20 of the dispenser, which is also domed in the same direction in a domed manner.

14, the nozzle 31 protrudes over the top of the ceiling 20.

The tube 9 forms a closing member 32 on the upper side. This sits in the basic position in the mouth opening 33 of the ceiling 20. The closing member has a plate shape and merges into the wall of the tube 9 via radial webs. The openings 34 remaining between the radial webs clear the flow path as soon as the actuation button 4 is pressed down (see, for example, FIG. 11). Under appropriate load, the dome-shaped cover of the bellows 29 deforms while reducing the volume of the pump chamber 8, so that the pasty substance can escape in portions.

The action on the crest is relatively uniform, as a result of a central opening 35 in the actuation button 4. The dispensing tube 9, which is directed upward, projects through this opening. The opening takes into account the need for movement due to the tilting position relative to the tube axis.

An inlet valve V1 is located upstream of the pump chamber 8 on the cartridge side, and an outlet valve V2 is located downstream of the pump chamber. The former is designed as a folding valve, the latter is designed as a so-called hydraulic valve, in which the tube 9 has such a length and cross section that the pasty mass 5 therein when the volume is increased the pump chamber keeps the tube channel practically blocked, so that the pump chamber is primarily refilled via the inlet valve V1. At most, this results in sucking back any excess of pasty mass that may remain in front of the opening 10. In addition, the means closing the mouth opening 10 (closing part 11 or stopper 32) in the final phase of the suction action of the pump 3 cause this path to be completely closed off from the outside. The function of the hydraulic principle results, for example, from EP patent 51 790.

The embodiment according to FIGS. 14 ff in turn uses a piston solution as pump 3. The reference numbers are, as far as necessary for understanding, transferred accordingly. The only difference is the somewhat different shape of the actuation button 4, the actuating surface 4 'integrates into the dome-like ceiling 20 also formed there, that is to say arches or dome continuation. The actuation button 4 is supported with stub-like projections 36 in an annular groove 37 of the dispensing tube 9. The transverse axis 22 is realized here as a hook-like grip and is referred to as this. The return means of the piston 12 here consists of a spring ring 38 formed on the underside of the actuating button, which is supported on the cartridge side on the upper side of the dispenser head 2. The dispensing tube is dragged along axially by the positive engagement 36/37.

Moreover, the dispenser head 2 is an integral part of the housing 25 or the sleeve 28. As can be seen in FIG. 16, the sleeve is elliptical, while the cartridge is circular in cross-section.

The cartridges K in all of the exemplary embodiments have a trailing piston 39. This is cup-shaped in shape and has an annular lip 39 ′ pointing in the direction of dispensing (arrow y) and an annular lip 39 ′ pointing in the opposite direction. Between the pointed lips, the cup wall of the trailing piston 39 lifts off the inner surface 40 of the cartridge.

With the principle of the suction pumps 3, a tight docking of the cartridge K on the dispenser head 2 is particularly important; this also applies to the definition of the cartridge K in the dispenser housing. Unmistakability measures are also implemented for safety in use. It is therefore the case that the storage container designed as a cartridge K with a follower piston 39 has a sealing collar 41 for sealing connection to the dispenser head 2 in the region of the passage opening 7, and that the form-fitting means M of the cartridge K are separate from the sealing collar 41, that is to say spatial maximum to minimum.

The sealing collar 41 is either directed outwards, that is to say it projects in the direction of the pump 3, or is designed to point in the direction of the trailing piston 39, in which case it projects into the interior of the cartridge K. In all cases, care is taken to ensure an overlapping assignment between sealing collar 41 and the connecting part, that is, dispenser head 2. The dispenser head 2 consequently forms a corresponding ring collar 42, which is either inserted into the central opening 6, or else comprises the sealing collar 41. To optimize the seal, a certain conicity can be used, such as in the exemplary embodiment according to FIGS. 1 and 7, it being sufficient that only one of the contacting surfaces has a correspondingly rota forms symmetrically conical flank, while the corresponding counter flank is cylindrical, for example.

The ring collar 42 is a technical component of the dispenser head or the pump 3.

According to FIG. 12, the sealing collar 41 is designed to be drawn inwards in the direction of the cartridge K. The increased sealing effect is based there on a lip-like tapering of the sealing collar end. The annular collar 42 is formed there by a connecting piece of the passage opening of the dispenser head 2 which is molded downward onto the bellows 29 and is identical here to the component forming the bellows 29. The lower end of the pump chamber 8 there is achieved by introducing a socket-like base body 44, which stiffens the passage area and also accommodates the inlet valve V1.

The form-locking means M of the cartridge K consists of a portion on the cartridge side and a portion on the housing side. In all cases it is identical to an external thread of the cartridge and a location-appropriate internal thread of the housing 25 of the dispenser 1. The cylindrical surface of the cartridge is ideal for a corresponding form-fitting configuration.

With the exception of the exemplary embodiments shown in FIGS. 10, 12, 14, the form-locking means M are in all cases at the lower edge of the housing 25 or the casing 28 receiving the cartridge K.

It is understandable that in order to achieve a high number of variations and a correspondingly high individualization rate, the entire intermediate area between the lower edge of the sleeve 28 can be used in height up to the mouth end of the cartridge K.

Preferably, in the interest of a maximum spatial complaint of sealing collar 41 and form-locking means M, the form-locking means M of the cartridge K and the sleeve 28 of the dispenser in the area of the wiping lips 39 ', 39' of the trailing piston 39, that is to say generally, on the piston level, specifically in the Level in which the trailing piston also acts as the cover of the cartridge K.

This positive locking zone is stiffened by wall offset. For example, reference is made to FIG. 1. There, the lower edge 45 of the sleeve 28 is offset outwards by the amount of the thread depth while maintaining the wall thickness of the sleeve-forming section. The corresponding offset corresponds approximately to a wall thickness of the casing. In the same way, the lower edge 46 of the section of the wall offset of the cartridge K forms a corresponding wall offset. This leads to a horizontal ring step 47, starting immediately below the external thread of the cartridge. The edge 46 serves, stiffened by the wall offset and thus predestined, as a turning handle D for screwing in and unscrewing the cartridge.

The end edge of the wall-offset section 46 leads to an even further outward set-up surface 48. The standing surface bears the reference number 49. The cylindrical outer surface of the edge 45 and that of the wall-offset section of the cartridge take an essentially flush course. The surface area of the section can be used to increase the grip to be roughened, especially to be grooved. A corresponding surface structure may also be given to the edge 45.

The cylinder wall of the cartridge K has a much smaller wall thickness than the sleeve 28. This goes so far with respect to the cylinder wall that the self-supporting stability of the cartridge is maintained in the empty state. This saves material and is also cheap from the perspective of demoulding.

Thus, locking lugs 50 can be formed on the inner surface 40 of the cylinder wall of the cartridge K (see FIG. 18), which only allow the trailing piston 39 to move in the direction of emptying (arrow y). With regard to the latching lugs, there are those with a flank that is steeper on the upper side and a flank that is flatter on the underside, so that this flatter flank provides a favorable run-up ramp for the piston 39 that is subsequently sucked in, but there is a blocking effect in the opposite direction. The latches are exaggerated in the drawing, for reasons of better understanding. Of course, locking lugs designed in the range of a few tenths of a mm are sufficient.

There are two latch lines or passages that illustrate the helical course of the latches 50. The course is chosen so that locking lugs 50 of the same height, each diametrically opposite, the lower sealing lip 39˝ of the follower piston 39 balanced, tilt-free.

The mouth opening 6 'of the cartridge K is sealed. The seal skin bears the reference symbol 51 (FIG. 18). It can be a thin-walled material zone produced from the material of the cartridge or a separate membrane, for example made of aluminum foil.

In the same way, the bottom zone of the cartridge can also be sealed in a product-protected manner.

Another means of individualization and thus ensuring the docking of the correct cartridge is also possible via the valve side by the cartridge K forming the valve seat surface 52 for the inlet valve V1 (see FIGS. 9, 10 and 14). The valve, that is, the valve flap 53, on the other hand, is attached to the dispenser head 2 or to the pump 3. According to FIGS. 9 and 10, the front edge of the sealing collar 41 is used to form the valve seat surface 52; according to FIG. 15, on the other hand, the upper edge zone of the cover of the cartridge near the opening 6 forms the valve seat surface 52.

A particularly favorable embodiment, also with regard to the optimal choice of material, consists in the fact that the valve or the valve flap is realized as a free-cut flap of an anchoring plate 54. Such an anchoring plate is shown in isolation in FIG. 17. As can be seen there, the circular valve flap 53 is connected to the circular plate body only via a narrow radial, hinge-forming web 55.

10, the corresponding hinge-like connection extends to the dispenser head 2.

According to FIG. 14, the anchoring plate 54 even forms the bottom of the pump chamber 8 there. As can be seen, the conically shaped edge of the anchoring plate engages behind an undercut groove 56. When the cartridge K is inserted, the anchoring plate also rests on the cross-section-corresponding ceiling of the cartridge K, so it is supported broadly and securely. Directly Below this blanket are the positive locking means M explained above on the cylinder surface. The cartridge is consequently screwed into the sealing collar 41, which is an integral part of the dispenser head or the pump housing. The housing 25 and the sleeve 28, viewed in cross section, take an elliptical wall profile (see FIG. 16). The undercut enables the anchoring plate 54 to be clipped on, using the elasticity of the component that forms the valve flap 53.

Similar means for holding the anchoring plate 54 below the bottom of the pump chamber result from FIG. 9. There, on the underside of the bottom of the pump chamber are formed horizontally, inwardly directed locking lugs 57. Four such latching lugs spaced at the same angular distance are sufficient.

1, the inlet valve V1 is located in the pump chamber 8 directly above the floor.

Provisions have also been made to break the sealing membrane 51 when the cartridges are assigned in order to connect to the flow path A. In this regard, the procedure is such that a piercing mandrel 58 is formed in the area of the passage opening 7 of the dispenser head 2, which penetrates into the opening 6 of the cartridge mouth 6 'when docking. In the illustrated embodiments, the piercing mandrel 58 is designed in the manner of a cone tip. The variant according to FIG. 2 shows, however, that a ring gear-like design is also possible. The ring gear has the reference number 58 '. It is a crown or crenellated continuation of the ring collar 42. In certain cases one tooth is enough, so that the foil tab sticks to the mouth.

The fact that the cartridge exerts a superimposed axial and rotational movement relative to the dispenser head 2 due to the form-locking means M, which is designed as a thread, possibly a steep thread, in any case promotes severing.

With regard to the conical tip-like design of the piercing mandrel 58, a cross-profiled structure is expediently used, the end edges of such web walls 59 following the circumferential surface of the conical jacket. The individual web walls can also be sharpened.

The web walls 59 are expediently rooted in the end edge of the ring collar 42 or even extend into the inner wall of the passage opening 7. This also has the advantage of chambering the passage opening 7 of the dispenser head. This avoids that when the empty cartridge K is removed for the purpose of inserting a fresh cartridge K, the remaining amount in the area of the passage opening 7 falls into the casing 28 and causes contamination there which, if hardened accordingly, may make it difficult to insert a new cartridge or the exact positioning difficult. The web walls 59 increase the degree of friction. The pasty mass adheres to the edge surfaces of the web walls 59.

The axial and rotational movement, which is also beneficial in this context, creates a type of mass cone (type of drop pin) when the cartridge is unscrewed.

By means of a radial spacing of cartridge K and sleeve 28 or housing 25, the air displaced when the new cartridge is inserted is discharged via the corresponding annular gap, this also over the area of the thread zone, since only one flank of the thread always carries.

The connection made possible via the conical ground plug also forms the suitable coupling method in terms of moisture.

In order for the contents of the cartridge to be dispensed as completely as possible, the upper transverse bottom of the cup-shaped trailing piston 39 can have an indentation adapted to the outer shape of the piercing mandrel 58, as can be seen in FIG. 7. It is a funnel-shaped indentation 60.

9 is the other way round. There, the top of the transverse base of the piston 39 is provided with a projection 61 which is adapted to the contour of the opening of the cartridge K.

With regard to the self-closing mode of the dispenser, a fixed closing part 11, which crosses the dispensing tube 9 from above, is taken into account, as already briefly indicated above, whereby this vertical closing part is overflowed downwards due to the axial mobility of the dispensing tube to the release position, as can be seen from Fig. 6.

This also applies in principle with regard to the solutions according to FIGS. 7 and 9, only that the closing part 11 is not stationary there, but rather as a lid extension on the pivot bar mounted operating handle 4 sits. The actuating button 4, which forms the upper end of the dispenser here, pivots away from the mouth 10 of the dispensing tube 9, depending on the bearing radius, the dispensing tube simultaneously moving axially downward. There is an overlapping movement here. The means of articulation and attack are illustrated by transferring corresponding reference numbers from the previous examples.

7 and 9, the dispensing tube 9 and the piston 12 are again created as separate basic components and assigned to one another in a functional manner. A clearance F is also taken into account here between the pressure piece 14 and the shaft 13, defined by longitudinal ribs 62 of the pressure piece, which finally come against the piston 12 and then move it. In order to prevent the dispensing tube from slipping upward, it forms an annular collar 63 which engages under a stop shoulder of the piston 12.

In the embodiment according to FIG. 9, as far as the valve-forming anchoring plate 54 is concerned, it is secure like a clamping jaw between an annular bead on the underside of the bottom of the pump chamber 8 and the valve seat surface 52 lying in the same plane on the upper side of the anchoring plate 54 and forming a kind of sealing ring , composed. The self-supporting valve flap 53 extends in the interior between the valve seat surface 52.

The cartridges X are filled in the way traditional dispensers are filled, i.e. from the bottom.

If the cartridge has already been incorporated, the filling can take place through the cartridge K, the area of the dispenser head 2 which is penetrated by the media already being completely filled. This enables the dispenser to be used immediately, thus avoiding previous, inefficient pumping movements.

The corresponding media connection is also retained if the fresh cartridge is assigned.

However, prior filling of the dispenser head is also unnecessary, since the head can be filled by actively inserting the trailing piston 39.

The function of the dispenser is, briefly summarized, as follows: By pulling off a protective cap 64 that overlaps the dispenser head in some examples, the actuating button 4 can be pivoted about its horizontal transverse axis 22 by exerting an actuating force in the direction of arrow P. This takes place against the force of the compression spring 15 or the restoring force of the bellows 29 or the restoring force of the ring spring 38. The downward movement reduces the volume of the pump chamber 8, be it by displacing the piston 12 or compressing the bellows 29. The input valve closes V1 due to the pressure in the pump chamber. The downward shift has meanwhile brought the dispensing tube 9 out of the closed position, so that the mass 5 located in the dispenser head is expressed in portions. By releasing the actuation button, the volume in the pump chamber is returned to the original level. This results in the creation of a vacuum in the pump chamber. Accordingly, pasty mass is made from the Cartridge K is sucked into the pump chamber 8. This takes place primarily before the portion of pasty mass located in the rather long dispensing tube 9 is sucked back. The relatively low sucking back effect is even beneficial in that any excess from the previous donation phase is sucked back.

The change of the cartridge K with regard to the opening of the cartridge mouth is explained in detail above and requires no further explanation.

Only with regard to the input valve V1 in Fig. 13 should be mentioned that this has a cross-profiled stem with radially outward projections on the underside, which prevent the valve body from coming out of its assigned position, but which allow axial freedom of movement. Incidentally, it is a poppet valve.

A further form of the different docking conditions results from the last two exemplary embodiments, namely FIGS. 19 and 20. To the extent that similar or similar arrangements are used, the reference numbers are used analogously. With reference to FIG. 19, a positive locking means M 'is additionally applied over the positive locking means M and the separate sealing means in the area of the sealing collar 41. The cartridge K also takes on two functions of the dispenser mechanism, namely that of the pump 3 and that of the return spring. Specifically, the procedure is such that the end of the cartridge K facing the dispenser head 2 has a flexible, axially compressible bellows section 65 which projects in the dispensing direction. To form this bellows section is the ceiling of the cartridge K circumscribing the central opening 6 used. As can be seen in FIG. 19, this blanket is basically designed as a blunt cone that tapers in the direction of the actuation button 4. The latter can have deformations that increase the restoring force. According to fig. l9 these are folding steps 66 which run concentrically to the central opening. The latter step in a ring shape. There is a rotationally symmetrical zigzag structure. However, radial ribbing is also conceivable, as can be seen, for example, from FIG. 20.

The additional form-locking means M 'is achieved according to FIG. 19 in that the sealing collar 41, which projects upward beyond the bellows section 65, can be screwed to the dispensing tube 9. For this purpose, the vertically downward end of the rising angled, non-rotating dispensing tube 9 has a screw-cap-like shape at the bottom. It overlaps the corresponding end of the sealing collar 41. Sealing takes place on the inside of the tube in that a concentric sealing cone 67 of the dispensing tube 9 projects into the interior of the sealing collar 41. Here, the upper inner edge of the sealing collar 41 lines up against the rotationally symmetrical flank of the sealing cone 67.

About the thread of the form-locking means M 'is secured by screwing the cartridge K for this sealing position against axial loads. The seal is perfect. Actuating floating movements of the cover of the cartridge are compensated by the bellows section 65.

Provisions have been made to create a so-called strip dispenser such that the sealing collar 41 extends into the short, into the cartridge space on the underside of the cover of the cartridge forming the bellows section tube 68 continues. The latter has a smaller clear diameter than that of the sealing collar 41. The corresponding rotationally symmetrical wall offset corresponds approximately to a wall thickness. This creates a stepped transition point 69 between the sealing collar 41 and the tube 68 which is also molded on. This transition point has openings 70 in the same angular distribution. The mass component 71 overlying the mass 5 and lying in the annular space between the tube 68 and the inner surface 40 of the cartridge passes over this. It lies as a strip on the mass strand formed in the sealing collar 41 or dispensing tube 9. It can be a mouthwash component if the underlying mass is toothpaste, for example.

20, the dispensing tube 9 is at the same time part of the cartridge K. It is realized as an upward extension of the bellows section 65, that is to say it is molded onto the same material. The dispensing tube 9 is cylindrical in shape and runs in a fixed connection piece 31 (see FIG. 10 and the discussions given in this connection). Here, too, the further design is carried out in such a way that the dispensing tube 9 is used to form a closing element 32, the counter-closing surface of which is the opening 33 of the dispenser head 2.

With regard to the dispenser mechanism, with regard to a uniform introduction of the actuation pressure, provision is made such that between actuation key 4 and bellows section 65 of the cartridge K there is a pressure ring 72 which, concentrically surrounding the dispensing tube 9, is located on the top of the flat-cone Bellows section 65 rests. The pressure ring occupies a horizontal position with the opening in the vertical. Its downward end face is transversely rounded, so that there is no erosive effect on the spring-elastic material forming the bellows section 65.

The entrainment attack on the pressure ring 72 takes place via stub axles which engage in the actuation button 4. In this way, the pressure ring remains captively mounted on the actuating button so that it can be tilted. The central opening 35 of the actuation button 4 takes into account the need for movement of the pressure ring 72. As can be seen in FIG. 20, the stub axles 73 which result in the growth of the pressure ring 72 extend in a transverse plane to the longitudinal central axis xx, and also transverse to the vertical arc-pivoting movement of the actuation button 4 .

In order to implement packaging protection which takes account of the possible oiling of the mass, depending on the filling content, the dispenser or the cartridge K has a bottom plug 74. The latter does not project outward beyond the lower edge 46. The bottom plug 74 has a cup-like shape and is clipped into the recess of the flared section of the cartridge K which is open towards the bottom. The bottom plug 74 seals with its upper edge against the step of the cartridge K formed by a wall offset. The edge springs back somewhat in relation to the inner surface of the cartridge, so that there is certainly a situation suitable for dripping.

As can be seen in the drawing, the central portion of the bottom plug 74 is retracted. It can be a center cutting groove groove, so that by means of a coin or the like, unscrewing the bottom plug 74 can be carried out easily. At an elevated point in the retraction there is then an air compensation opening 75, so that the space behind the trailing piston 39 does not come into a negative pressure situation.

The trailing piston 39 has a change according to FIGS. 19 and 20 insofar as it has a so-called clamping module 76. It is a star-shaped structure, the prongs of which support the trailing piston 39 on the inner surface 40 of the cartridge against sagging, but do not hinder the trailing.

The last two exemplary embodiments described work according to the hydraulic principle.

The mass 5 is dispensed by deforming the bellows section 65 via the actuation button 4. The corresponding reduction in volume within the cartridge K, due to the supported follower piston 39, causes it to be forced out through the dispensing tube 9, which, also actuated by a button, has primarily opened the orifice 10, be it by moving the closing part 11 or by withdrawing the closing member 32, which is conical in FIG. 20, from the opening 33. By releasing the actuation button 4, the bellows section 65 returns to its basic position. The trailing piston sucks over the level column before the contents of the dispensing tube 9 could suck into the cartridge K.

The latter embodiment (FIG. 20) has the particular advantage that when the cartridge K is changed, no pasty mass remains in the dispenser head. So you can on the switch a wide variety of media and does not need to rinse the dispenser head. At best, cleaning in the immediate area of the mouth opening 33 is recommended if one does not want to use the rinsing effect of the next mass, which is given anyway.

In basic position, d. H. at maximum fill level, the follower piston 39 is supported according to FIG. 5 with its lower annular lip 39˝ on a short annular shoulder 77. In the case of long standing times, for example, the mass cannot cause the trailing piston 39 to creep downward.

In the dispenser according to FIGS. 21 to 26, the dispenser mechanism has a pump 3 with inlet valve V1 and outlet valve V2, outlet valve V2 having a valve body arranged in dispensing tube 9. To accommodate this valve body, the end region 9 'of the dispensing tube 9, as shown in Fig. 21, expanded. This widening creates a zone of the tube which has a clear diameter twice as large as the actual, upper, strand-forming section of the dispensing tube. The extended end portion 9 'extends substantially within the axial length of the piston 12. The piston cover is pulled deep down, so that there is a quasi-cup-shaped base body. The extension 9 'extends within the pot space.

The delivery tube 9 is attached to the piston 12 by means of the clip connection. For this purpose, the lower edge of the end region has an outwardly pointing annular bead 78. The latter is located in an annular groove 79 on the top of the piston cover. The peripheral flank of the annular groove 79 is extended upwards. It forms a counter bead overlapping the annular bead 78 80. Its wall protrudes above the top of the piston cover. An annular groove 81 running in the back of the counterbead 80 creates the necessary escape space when the parts to be connected are assigned to clips. The inner flank of the annular groove 79 takes the form of a truncated cone, so that there is a centering function as a result.

The piston 12 is also perforated centrally in this embodiment, so that the substance entering the pump chamber 8 gains connection through the piston to the outlet channel formed by the dispensing tube 9. As can be seen, the corresponding central piston opening forms a valve seat surface 12 'for the output valve V2. The valve seat surface 12 is funnel-shaped. It widens upwards. The output valve V2 is cylindrical in the lower region such that the lower horizontally circumferential edge seals against the said valve seat surface 12 '.

The body of the outlet valve V2 is under spring load in the closed position. For this purpose, the strut 82 is formed radially outward of the outlet valve V2. The latter go out approximately at the middle level of the axially guided outlet valve V2. There are a total of four struts 82, which are divided at the same angle. From their horizontally running sections extend upward support feet 83. The latter find their abutment on a circumferential paragraph 84. This paragraph 84 is achieved by the expansion of the lower end region 9 'of the dispensing tube 9 explained above. The paragraph runs roof-shaped and rotationally symmetrical. The struts 82 and the support feet 83 are supported in the lower inner corner of the heel. The portion of the dispensing tube following the upper corner of paragraph 84 9 is cylindrical in shape, so that this section can be used advantageously for the axial guidance of the valve body of the output valve V2. The lower, essentially pot-shaped section of the outlet valve V2 continues upwards into a cross shaft 85 with a rounded corner at the end. The longitudinal strips of the cross shaft 85 slide so smoothly on the inner wall of the section of the dispensing tube there.

In the basic actuation position, the output valve V2 assumes the release position shown in FIG. 22. As can be seen, the spring struts 22 step into a kind of folding position, i.e. the right angle shown in FIG. 21 between the radially outward section and the section parallel to the longitudinal central axis x-x changes into a folded position which is below 90 °. The restoring force inherent in the material causes the outlet valve V2 to close immediately when the excess pressure in the pump chamber 8 subsides. The closed position shown in FIG. 21 then occurs again.

Further information on the function of this version of the dispenser appears to be superfluous, since it is set out in detail in the previous exemplary embodiments. The reference numbers are transferred accordingly. As a difference to the previous examples, it turns out that, in the last exemplary embodiment, the mouth opening 10 is closed by a stopper 86 which continues into an easily accessible trigger tab 87. When the protective cap 64 is seated, the stopper 86 is loaded both from the ceiling thereof and from the inner wall thereof in the direction of the closed position.

In this pure pump version, the clamping module 76 described in connection with the configuration according to FIG. 20 can be omitted. In the exemplary embodiment according to FIG. 21, moreover, specifically a total of three ring shoulders 77 are provided for the follower piston 39.

With reference to FIGS. 27 to 29, a dispenser system with a self-priming dispenser head 2 and a pump chamber 8 is shown. The cartridge K is designed on the left-hand side in FIG. 27 for initial use with an effective length 1 such that self-priming is ensured by filling the pump chamber 8 as the cartridge K is being inserted. Specifically, the embodiment according to FIG. 27 is a dispenser with a pump chamber 8 with an inlet valve V1. The second valve is replaced by the pasty mass which is in the operating state in the dispensing tube 9. The subsequent cartridge K ', which is only shown for direct comparison in Figure 27 on the right in the drawing, has a shorter effective length 1' than the first cartridge K. When the dispenser head 2 is still empty, a first cartridge K with a long effective length 1 is to be used first. Then, after emptying the first cartridge K, a follow-up card K 'with a shorter effective length 1' is to be used, since the pump chamber remains filled even after the first cartridge K has been emptied. However, should the pump chamber 8 be emptied due to special circumstances, normal functioning of the dispenser can easily be achieved again by inserting a first cartridge K.

It is essential that the pump chamber 8 is in the operating position in the cartridge K or K 'protruding, such that a section 8' of a pump chamber dung is in direct contact with the mass or filler in the cartridge.

As can be seen in particular from Figures 28 and 29, the cartridges K and K 'are in their outer dimensions, d. H. with the same height h and the same diameter. In the subsequent cartridge K ', in contrast to the first cartridge K, only the heel f is formed higher. For this, as already mentioned, the effective length 1 'can be made smaller. Since the positive locking means on the dispenser, the internal thread in the exemplary embodiment, is arranged locally identically with respect to the first cartridge and the subsequent cartridge, there is a different depth of immersion of the pump chamber 8 in the cartridge K and the cartridge K '.

The features of the invention disclosed in the above description, the drawing and the claims can be of importance both individually and in any combination for the implementation of the invention. All disclosed features are essential to the invention. The disclosure content of the associated / attached priority documents is hereby also included in full in the disclosure of the application.

Claims (40)

1. Dispenser for pasty masses (5), with a dispenser head (2) and a mass storage container which can be operatively connected to the dispenser head by means of a positive lock, a piston (12) movable in the dispensing direction (y) being arranged in the storage container and the dispenser head (2) has a passage opening (7), characterized in that the storage container designed as a cartridge (K) with a follower piston (39) has a sealing collar (41) for sealing connection to the dispenser head (2) in the region of the passage opening (7), and that the positive locking means (M) of the cartridge (K) are separate from the sealing collar (41). 2. Dispenser, in particular according to claim 1, characterized in that the sealing collar (41) is designed inwardly drawn with respect to the cartridge (K), for interaction with a ring collar extension (43) projecting into the interior of the cartridge (K) in the bonded state ) the passage opening (7) of the dispenser head (2). 3. Dispenser, in particular according to one or more of the preceding claims, characterized in that the positive locking means (M) of the cartridge (K) are formed on the cylindrical surface thereof. 4. Dispenser, in particular according to one or more of the preceding claims, characterized in that the dispenser head (2) forms a cartridge (K) substantially receiving housing (25), and that the positive locking means (M) of the housing (25) the lower edge are formed. 5. Dispenser, in particular according to one or more of the preceding claims, characterized in that the cartridge (K) forms a valve seat surface (52) for a valve (inlet valve V1) attached to the dispenser head (2). 6. Dispenser, in particular according to one or more of the preceding claims, characterized in that the valve seat surface (52) is formed on the sealing collar (41). 7. Dispenser, in particular according to one or more of the preceding claims, characterized in that the valve (input valve V1) has a valve flap (53) shaped as a cut-out flap of an anchoring plate (54). 8. Dispenser, in particular according to one or more of the preceding claims, characterized in that the anchoring plate (54) below the pump chamber bottom of the dispenser head (2) is clip-fastened or this bottom, cartridge-supported, forms. 9. Dispenser, in particular according to one or more of the preceding claims, characterized in that the cartridge (K) can be detached from the dispenser head (2) by means of a superimposed axial and rotational movement. 10. Dispenser, in particular according to one or more of the preceding claims, characterized in that the passage opening (7) of the dispenser head (2) is chambered. 11. Dispenser, in particular according to one or more of the preceding claims, characterized in that in the passage opening (7) a piercing mandrel (58) is formed for opening the cartridge mouth (6 '). 12. Dispenser, in particular according to one or more of the preceding claims, characterized in that the transverse bottom of the trailing piston (39) has a design adapted to the piercing mandrel (58) (indentation 60 or projection 61). 13. Dispenser, in particular according to one or more of the preceding claims, characterized in that the piercing mandrel (58) is designed as a cone tip. 14. Dispenser, in particular according to one or more of the preceding claims, characterized in that the piercing mandrel (58) is designed as a toothed ring (58 ') (Fig. 2). 15. Dispenser, in particular according to one or more of the preceding claims, characterized in that the positive locking means (M) of the cartridge (K) and the sleeve (28) of the dispenser in the region of the wiper lips (39 ', 39˝) of the trailing piston (39 ) are designed in the filling state. 16. Dispenser, in particular according to one or more of the preceding claims, characterized in that the positive locking zone is stiffened by wall offset. 17. Dispenser, in particular according to one or more of the preceding claims, characterized in that a turning handle (D) of the cartridge (K) is formed by the flared section (46) of the wall offset, and that the front edge of this wall section forms the footprint (48) of the dispenser. 18. Dispenser, in particular according to one or more of the preceding claims, characterized in that the cylinder wall of the cartridge (K) is formed with a substantially smaller wall thickness than the casing (28), while maintaining the self-supporting stability in the empty state. 19. Dispenser, in particular according to one or more of the preceding claims, characterized in that locking lugs (50) are formed on the inner wall of the cylinder wall of the cartridge (K), which allow the trailing piston (39) to move only in the emptying direction (y). 20. Dispenser, in particular according to one or more of the preceding claims, characterized in that the cartridge mouth (6 ') is sealed. 21. Dispenser, in particular according to one or more of the preceding claims, characterized in that two locking lug lines (L) are formed with a helical course such that locking lugs (50) of the same height are diametrically opposite each other. 22. Dispenser, in particular according to claim 1, wherein the dispenser head has an automatically closable dispensing tube, characterized by a fixed closing part (11) which overlaps the dispensing tube (9) from above and an axial mobility of the dispensing tube (9) downward into an open position . 23. Dispenser, in particular according to claim 1, wherein the dispenser head is formed with a closing part molded onto the actuating handle, characterized by a dispensing tube (9) which can be moved axially downward into the open position. 24. Dispenser, in particular according to one or more of the preceding claims, characterized in that the cartridge (K) at its end facing the dispenser head (2) has a flexible, axially compressible bellows section (65) projecting in the dispensing direction. 25. Dispenser, in particular according to one or more of the preceding claims, characterized in that the bellows section (65) has folding stages (66) running concentrically to the central opening (6). 26. Dispenser, in particular according to one or more of the preceding claims, characterized in that the sealing collar (41) projecting beyond the bellows section (65) can be screwed to the dispensing tube (9). 27. Dispenser, in particular according to one or more of the preceding claims, characterized in that the end of the dispensing tube (9) on the cartridge side engages over the corresponding end of the sealing collar (41) like a screw cap, a concentric sealing cone (67) of the dispensing tube (9) sealingly in the inside of the sealing collar (41) protrudes. 28. Dispenser, in particular according to one or more of the preceding claims, characterized in that the sealing collar (41) extends in opposite direction into a short tube (68) reaching into the cartridge space sets, which has openings (70) for applying a mass component (71) to the paste strand at a stepped transition point (69) to the sealing collar (41). 29. Dispenser, in particular according to one or more of the preceding claims, characterized in that the dispensing tube (9) is part of the cartridge (K) (Fig. 20). 30. Dispenser, in particular according to one or more of the preceding claims, characterized in that the dispensing tube (9) designed as an extension of the bellows section (65) is also used to form a closing element (32) whose counter-closing surface is the mouth opening (33) of the dispenser head (2) is. 31. Dispenser, in particular according to one or more of the preceding claims, characterized in that a pressure ring (72) is connected between the actuation button (4) and bellows section (65) of the cartridge (K), which concentrically surrounds the dispensing tube (9), rests on the top of the basically flat-tapered bellows section (65). 32. Dispenser, in particular according to one or more of the preceding claims, characterized in that the pressure ring (72) on a transverse plane intersecting the longitudinal central axis (x-x) of the rotationally symmetrical cartridge (K) is interlocked with the actuation key (4). 33. Dispenser, in particular according to one or more of the preceding claims, characterized by a bottom plug (74) of the cartridge (K) which leaves an air compensation opening (75) at an elevated point. 34. Dispenser, in particular according to one or more of the preceding claims, characterized in that the bottom plug (74) is cup-shaped and can be screwed into the end of the cartridge (K). 35. Dispenser, in particular according to one or more of the preceding claims, characterized in that an extended end region (9 ') of the dispensing tube (9) is held in a clip-connected manner on the top side in the piston cover and that a loosely inserted outlet valve (V2) with one in the piston cover trained valve seat surface (12 ') cooperates. 36. Dispenser, in particular according to one or more of the preceding claims, characterized in that the outlet valve (V2) is supported on a circumferential shoulder (84) of the dispensing tube (9) by means of molded-on spring struts (82). 37. Dispenser system with a self-priming dispenser head (2) and a replaceable cartridge (K), in particular with a dispenser according to one or more of the preceding claims, characterized in that the cartridge (K) for initial use with such an effective length (1) It is designed that self-priming is ensured by filling the pump chamber (8) in the course of inserting the cartridge (K) and that a cartridge (K) is suitable for subsequent use with a lower, only for operational connection to the pump chamber (8 ) sufficient effective length (1 ') is formed. 38. Dispenser for pasty masses (5) with a dispenser head (2) and a mass storage container which can be connected to the dispenser head (2), with an in Dispensing direction (y) movable piston (12) is arranged and the dispenser head (2) has a passage opening (7), in particular according to one or more of the preceding claims, characterized in that the pump chamber (8) in the operating position in the cartridge (K, K ') is protruding and that a section (8') of a pump chamber wall is in direct contact with the mass in the cartridge (K, K '). 39. Dispenser, in particular according to one or more of the preceding claims, characterized in that the immersion depth from a first cartridge (K) to a subsequent cartridge (K ') can be varied by changing the effective cartridge length (1,1'). 40. cartridge system consisting of a first cartridge (K) and a subsequent cartridge (K '), characterized in that the outer dimensions of the first and subsequent cartridges (K, K') are the same, with different filling space length.

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