DE3844218A1 - MEASURE DONOR FOR PASTOESE - Google Patents

Description

The invention relates to a dispenser for pasty Masses, with a dispenser head and a form-fitting one mass-operable detachable with the dispenser head Storage container, with one in the storage container in output Direction movable piston is arranged and the dispenser head has a passage opening.

A donor of this type is through the DE-GM 80 18 892 be knows. There the bulk storage container becomes the dispenser head upstream. This means that the piston acts as a push piston must be trained. The one that moves it in the dispensing direction Piston rod requires a length that that of the mass supply corresponds to the container. Overall, this leads to a right long design with increased top heaviness. The dispenser, which is designed as a slim, free-standing device, can widened foot easily fall over and so for example Take along provided utensils such as tooth cups etc. The Assignment of the operationally releasable bulk storage container happens by screw connection. Before that, the Rack designed piston rod retracted again what is beyond the dispenser head area laterally gear, partially exposed for actuation looks.

The object of the invention is a generic dispenser for pasty masses such as toothpaste, cosmetics etc. cheaper to design, especially with regard to the Improve the allocation of the bulk storage container.

This problem is solved by the one specified in claim 1 Invention.

The dependent claims are advantageous developments of the generic dispenser.

As a result of such a configuration, a generic spencing is the increased utility value achieved: This is essential Lich based on the simplified assignment of the mass pre container, also in a distinctive docking and last but not least, the high tight closure of the formed as a cartridge with a follower piston ters, whose further concrete form is such that it has a sealing collar for sealing connection to the Dispenser head in the area of the passage opening, and that the Form-locking means of the cartridge separately, that is in space distance to the sealing collar. The corresponding Differences in location can be viewed from two points of view bring optimal impact: On the one hand, for the sealing effect the most suitable spatial and material use find under the same premise for the form closing agent. On the other hand, such a type of  Individualization at the same time avoided that not the corresponding Appropriate characteristics of the reservoir used can be. The application of the trailing piston system implied adorns a suction pump, so that the dispenser mechanics spatially runs small. In an advantageous further development is pre hit that the sealing collar is pulled in with respect the cartridge is designed to interact with a mare protruding into the interior of the cartridge in the bonded state zen the passage opening of the dispenser head. The correspond overlapping sealing compound is particularly advantageous ter the pumping system with regard to the sowing mass from the cartridge. It doesn't even happen a minimal intake of false air and one with it related impairment of function. What the Form-locking means, it also proves to be advantageous that this on the cylindrical surface of the cartridge are trained. The antidotes are accordingly on the dispenser housing. It is also proposed that the Dispenser head essentially receiving the cartridge Forms housing, and that the positive locking means of the housing are formed on the lower edge. That leads to one extreme spacing of the form-fit and sealants. All Intermediate spatial levels can be used for the use indicated individualization, so that for example wise filling contents such as toothpaste, mustard, mayonnaise, color paste , sealing compound, cosmetics of all kinds with regard to use are under control. A means of exclusion  is also that the cartridge has a valve seat che forms for a valve attached in the dispenser head. The same applies here, only if the correct cartridge is assigned the desired perfect valve function results. In The valve seat surface on the sealing collar is advantageous realized. Such a collar has as much as possible thin-walled cartridge cover etc. high internal stability due to the deviating from the flat ceiling Shaping. Although with the appropriate setting of the sprayer mass the valve is formed from the material of the dispenser head could be proposed in low-cost further training, that the valve is an anchoring flap plate-shaped valve plate. Such a valve can with regard to the poetry requirements like that related factors softness or flexibility best possible material can be selected. It is advantageous making sure that the anchor plate is below the pump chamber bottom of the dispenser housing is clip-attached. That brings not just a simplified installation due to free access but also has the advantage of simple Interchangeability when moving from one product to another Product is to be changed over donor-wise. Allocation green stig it proves advantageous that the cartridge through a superimposed axial and rotational movement of the Dispenser head is detachable. This leads to a drill-related Sharpening the remaining stock in the docking area. So is with simple means effectively avoided that pasty mass  relocated from the passage area to the dispenser head, at for example in the area of the wall to start there thick what the precise insertion of the next cartridge would complicate. To even with the largest passage opening to avoid dripping or falling on pasty mass the passage opening of the dispenser head has deteriorated mert, that is, it has a grid-like structure on what leads to a division of the residual mass and in total together with the coefficient of friction increased. The dispenser head leaves can be used as an opening tool for the cartridges. For this is structurally so that in the passage opening a piercing mandrel is formed to open the cartridges muzzle. This is for example due to an extremely thin, cuticle-like wall, which is used in the manufacture of Cartridge is also taken into account. Further it is from Advantage that the piercing mandrel is designed as a cone tip is. The latter can be part of the chambering of the passage opening be. Alternatively, it is suggested that the puncture mandrel is designed as a ring gear. Using the axial and rotation of the cartridge cuts this tooth practically wreaths a hole in the closing skin of the wall chen. It is also advantageous that the positive locking means of Cartridge and the dispenser cover in the area of the wiper lips of the piston in the filled state. The piston even takes on the function of a species in this area Support core for the thin-walled cartridge. In advantageously, the positive locking zone is by Wan  stiffened. In this context advantageous is the further measure that the turning handle of the cartridge formed by the exhibited section of the wall offset is, and that the front edge of this wall section the Footprint of the dispenser. This creates two Advantages: On the one hand, there is a stable, freely accessible zone created for screwing the cartridge in and out on the other hand, it results from the interaction with the wall offset a further exhibition area of the schlan upright dispenser. Because the cartridge of this Side is introduced, i.e. in the lower area of the Donors, every head heavy is avoided. Moreover it is proposed that the cylinder wall of the cartridge with much less wall thickness than the casing det, of course while maintaining the self-supporting Stability when empty. This aspect is before important for saving material, but also important a good starting point in other respects such that on the inner wall of the cylinder wall Cartridge can easily be formed with latches a migration of the trailing piston only in the draining direction enable. Especially the thin-walled leaves the Entfor no problems arise. In mechanical terms can by such a backstop of the trailing piston even an inlet valve can be dispensed with. Is in the so-called hydraulic dispenser system stem applied, in which the located in the muzzle  Mass itself forms a kind of check valve, are ahead requirements for an extremely inexpensive dispenser version. It proves to be for long-term storage of the cartridges as favorable that their mouth is sealed. To increase the mechanical protection can seal the skin in one Placed slightly above the mouth of the mouth be. However, a protective cap is also conceivable. The The end at the other end is the lid-like one Trailing piston. In the back, of course, in the zone the wall offset, which is predestined to do so, too a sealing skin may be used that is only in use must be perforated. As for the latches, so it is advantageous that two locking lines with wendelarti are designed in such a way that locking lugs are the same Height are diametrically opposite each other. That leads to a completely tilt-free wake of the piston. A Dispenser, which is designed in particular according to claim 1, the dispenser head an automatically lockable outlet has a tube, is further characterized by a fixed, overlap the dispensing tube from above of the closing part and an axial mobility of the dispensing tube chens down to the open position. That leads to one both simple and extremely effective self-closing of the donor. Another form of so-called self-closing Design opens a solution to a donor who is designed in particular according to claim 1, with a the actuating handle molded closure part, marked  characterized by an axially downward opening position movable dispensing tube. A particularly beneficial one Continuing education, especially with regard to the sought individualization, results from the measure, that the cartridge at its end facing the dispenser head a projecting, flexible, axially projecting has compressible bellows section. It is accordingly ge partially in the design of the output device involved in shaping the pump room and also as Return spring acts. Regarding the latter radio tion it proves to be favorable that the Balgab cut fold concentric to the central opening stages. That brings a kind of bellows section. The opening in the center can be opened even with erhebli tolerance deviations are always safely docked according to the position of the dispenser head also radially oriented flexibility. Furthermore, the spring characteristic is improved. It is also proposed that the Balgab cut outstanding sealing collars with the dispensing tube is screwable. This results in a doubling the form-fitting means, but also the significant seal-related gene advantage that the axial operating forces are not in the Flow in the sealing zone yourself. With regard to the tight Design measures have proven to be favorable that the cartridge-side end of the dispensing tube screw cap on the corresponding end of the sealing collar tig overlaps, with a concentric sealing cone of  Dispensing tube sealing into the interior of the sealing collar protrudes. In this way, extremely fine edges can be created Use the seal by the inner edge of the sealing collar on the rotationally symmetrical flank of the sealing cone ′ is present. With a view to creating a so-called Strip dispenser, will continue in advantageous training gone that the sealing collar in the opposite direction continues into the short tube reaching into the cartridge space, which at a stepped transition point to the sealing collar Breakthroughs for applying a mass component to the Has paste strand. For example, in the case of Training as a toothpaste dispenser regarding this mass compo nente is a mouthwash component. One in the way look at a clean media change particularly cheap Solution is achieved when the dispensing tube is part the cartridge is. Any remaining in this tube Residual mass is from the area of the cartridge change Dispenser mechanics so easily removed. The dispensing tube an additional function can also be transferred, if the edition is designed as an extension of the bellows section tube is used to form a locking device, the counter-closing surface of the mouth of the dispenser head fes is. Such a configuration also enriches the mentioned individualization. It is also proposed that between the actuation button and the bellows section of the cartridge there is a pressure ring which is concentric with the dispensing tube surrounding, on top of the basically flat-tapered  Bellows section rests. With this measure, actuators leaders concentrated and equally on the Balgab cut transferred. To the pressure ring with simple means to assign the dispenser mechanics, this is on one of the Longitudinal central axis of the rotationally symmetrical cartridge cut the transverse plane with the actuation key. The rich distinction of cartridges favors that to pack a wide variety of media and to dispense dispensed doses ben. Because even under such media, for example, oil-containing products are, on the other hand, a bottom oiling the accept would restrict the dance of such a donor is Provide the cartridge with a bottom plug that is at an elevated position Has an air vent. The, if low loss is thus safely absorbed. Especially before Part of an embodiment is therefore such that the Bottom plug designed bowl-like and in the down open end of the cartridge is clipped.

Finally, the invention proposes that an extended terter end area of the dispensing tube clipped top is supported on the side in the piston cover and that a loose Output valve inserted with one in the piston cover trained valve seat surface cooperates. For that created valve chamber can for the piston in axial Towards the space that is needed anyway. Also it proves structurally advantageous that the piston for forms the upper end of the pump chamber and for  others the counterclips for the output to be assigned tube and finally even the valve seat for that Outlet valve. A favorable design results with simple means, finally, by the fact that the exit ven til by means of molded struts on a circumferential Supporting the paragraph of the dispensing tube. The Ab is educated set of the cross-sectional jump between the widened, a relatively wide support for the dispensing tube end area and the reduced cross-section, upper area leading to the mouth. This coax runs al to the widened range, can, depending on the valve construction on, this narrowed area also for guiding the Output valve are used.

The object of the invention is based on several Exemplary embodiments explained in more detail. It shows:

Fig. 1 the dispenser according to the first embodiment in vertical section with an incorporated, the pasty material containing cartridge, namely in the closed basic position,

Fig. 2 extracts a variation in the area of Dichtkra gene between the dispenser head and cartridge,

Fig. 3 shows a cross section through the dispensing head according to line III-III in Fig. 1,

Fig. 4 shows the top view of the dispensing head,

Fig. 5 shows the dispenser in representation as in FIG. 1, but in an actuation intermediate phase,

Fig. 6 this dispenser in the actuation starting position,

Fig. 7 is a vertical section through the dispenser according to a second embodiment, in the closed basic position,

Fig. 8 shows the section according to line VIII-VIII in Fig. 7,

Fig. 9 for guiding the dispenser in a vertical section according to the third stop, in closing the basic position,

Fig. 10 shows the dispenser according to the fourth embodiment, again in the closed basic position,

Fig. 11 the same actuator in initial position,

Fig. 12 according to the fifth vertical section of a dispenser embodiment, again in the closure base lung Stel,

Fig. 13 the same actuator in initial position,

Lung Fig. 14 according to the sixth vertical section of a dispenser embodiment, in closure base Stel,

Fig. 15 the same actuator in initial position,

Fig. 16 shows the section along line XVI-XVI in Fig. 15,

Fig. 17 is a plan view of a valve flap de anchoring plate forming the valve,

Fig. 18 is a cartridge in a vertical section, the course of detents illustrative,,

Lung Fig. 19 according to the seventh vertical section of a dispenser embodiment, in closure base Stel,

Fig. 20 shows the dispenser according to the eighth embodiment, cut again in the closed basic position and vertically,

Fig. 21 shows the dispenser according to the ninth embodiment, cut again in the closure base position and vertically,

Fig. 22 the same actuator in initial position,

Fig. 23 is a plan view of Fig. 21, but in ner abgenomme cap,

Fig. 24 shows an enlargement of the lower left end of the dispenser according to FIG. 21,

Fig. 25 used in the dispenser type of FIG. 21 from the outlet valve in a single representation, in side view and

Fig. 26 is a plan view thereof.

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

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

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

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 formation of a piston pump ( FIGS. 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 pump chamber 8 , which is cylindrical in this case, and in both directions defined as a stop. 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 connects. 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 takes place by reducing the volume of the pump chamber 8 de displacement process, which brings to express a strangörmi gene, metered portion of the pasty mass 5 with it.

The downward displacement of the pressure piece 14 on the actuation key 4 happens against spring loading. The corre sponding, the dispenser head 2 incorporated compression spring bears the reference number 15 . It is a helical spring pressure, the cartridge-side end turn is supported on a horizontal ring wall 16 and the Drucktastenseiti ge end turn on a horizontal collar 17 of the Druckstüc kes 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 actuation side on the ceiling 20 of the dispenser 1 and is fixed in the actuating surface 4 'facing end region around a horizontal transverse axis 22 . The attack on the pressure piece 14 takes place approximately in the central region of the actuation button 4 , which practically uses the entire inside width of the dispenser. The latter has axially stub-like, cantilever Querzap fen 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 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 mechanism also uses a long-lever body, which in turn is mounted on the left-hand side by a horizontal Querach 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 there through a window 30 of the dispenser to the outside. The window defines the basic and effective position of the actuation button by the upper or lower edge of the window 30 . The dome-like dome of the bellows 29 forms the dispensing tube 9 directly in the center. The latter extends in the longitudinal central axis xx of the dispenser and leads in a tendon comprising it, stationary spigot 31 , which is formed on the underside of the dome-shaped, curved vaulted ceiling 20 of the dispenser.

Referring to FIG. 14 of the nozzle 31 protrudes above the top floor 20..

The tube 9 forms a closing member 32 on the upper side. In the basic position, this sits 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 loading, the dome-shaped ceiling of the bellows 29 deforms while reducing the volume of the pump chamber 8 , so that the paste-like substance can escape in portions.

The application of the crest is relatively uniform, due to a central opening 35 in the actuation button 4th The upwardly directed dispensing tube 9 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 V 1 is located upstream of the pump chamber 8 on the cartridge side, and an outlet valve V 2 is located downstream of the pump chamber. The former is designed as a folding valve, the second 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 practically blocks the tube channel when the volume of the pump chamber is increased, so that it preceded the refilling of the pump chamber via the input valve V 1 happens. At best, this results in sucking back any excess of pasty mass that may be left in front of the mouth opening 10 . In addition, the Mündungsöff opening 10 closing means (closing part 11 or stopper 32 ) in the final phase of the suction of the pump 3, the complete closing of this path to 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 Ge stalt the actuation button 4 , the actuating surface 4 'integrates into the dome-like ceiling 20 also formed there, that is arch or dome continuing a runs. The actuation button 4 is supported with achsstummelarti gene 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 output tube Chen is dragged axially by the positive engagement 36/37 .

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

The cartridges K of all exemplary embodiments have a trailing piston 39 . This is cup-shaped in shape and has a dispensing direction (arrow y ) ring lip 39 'and an opposing ring lip 39 ''. Between the tapering lips, the pot wall of the trailing piston 39 lifts off from the inner surface 40 of the cartridge.

In the principle of the suction pumps 3 , a dich tes 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 done that the cartridge K formed with a follower piston 39 has a sealing collar 41 for sealing connection to the dispenser head 2 in the area of the passage opening 7 , and that the positive locking means M of the cartridge K are separate from the sealing collar 41 , that is spatially 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 . Consequently, the dispenser head 2 therefore forms a corresponding ring collar 42 , which is either inserted into the central opening 6 , or comprises the sealing collar 41 . To optimize the seal can be based on a certain conicity, such as in the embodiment of FIGS. 1 and 7, it being sufficient that only one of the contacting surfaces forms a corresponding rotationally symmetrical conical flank, while the corresponding counter flank, for example, cylin drischer Shape is.

The ring collar 42 is a technical component of the Spen derkopfes or the pump 3rd

Referring to FIG. 12 of the sealing collar is designed in the direction of 41 cal K Kartu pulled inward. 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 bellows 29 formed downward nozzle of the passage opening of the dispenser head 2 , which is identical here to the component forming the bellows 29 . The lower end of the pump chamber 8 there is achieved here by introducing a socket-like base body 44 which stiffens the passage area and, moreover, takes the inlet valve V 1 .

The form-locking means M of the cartridge K consists of a portion on the cartridge side and a portion on the housing side. It is identical in all cases with an external thread of the cartridge and a locally 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 up to the mouth end of the cartridge K.

Preferably, in the interest of maximum spatial complaint of the sealing collar 41 and form locking means M the form-locking means M of the cartridge K and the sheath 28 of the dispenser in the area of the wiper lips 39 ', 39' 'of the after-running piston 39, thus said in general, on the piston plane, and in the fill level, in which the trailing piston also acts as the cover of the cartridge K.

This positive locking zone is stiffened ver 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 Ver corresponds approximately to a wall thickness of the shell. 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 stage 47 , starting immediately below the external thread of the cartridge. The edge 46 serves, stiffened by the wall offset and so predestined to have D as a turning hand for screwing the cartridge in and out.

The end edge of the section 46 offset from the wall leads to an even more outwardly displaced mounting surface 48 . The stand area bears the reference number 49 . The cylindrical outer surface of the edge 45 and that of the wall-offset portion of the cartridge take a substantially cursed course. To increase the grip, the jacket surface of the section can be roughened, in particular 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 bezüg Lich the cylinder wall so far that just the self-supporting stability of the cartridge is maintained in the empty state. This saves material and is also inexpensive in terms of the demolding aspect.

Thus, 40 of the cylindrical wall of the Kartu (comp. Fig. 18) allowing migration of the follower piston 39 only in emptying direction (arrow y) can be formed cal K detents 50 on the inner surface. 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 trailing piston 39 balanced, tilt free undertaking.

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.

The bottom zone of the carto is in the same way sealable with product protection.

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 V 1 (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 anchoring plate is shown isolated in Fig. 17. As can be seen there, the circular valve flap 53 is only materially connected to the circular plate body via a narrow radial, hinge-forming web 55 .

According to FIG. 10, the corresponding hinge-like Anbin sufficient extension towards the dispensing 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 there . The anchoring plate rests when the cartridge is inserted K at the same time on the cross-section corresponding ceiling of the cartridge K, so it is a broad area and securely supported. The form-locking means M explained above lie directly below this ceiling 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 fastened using the elasticity of the component forming the valve flap 53 .

Similar means for holding the anchoring plate 54 below the pump chamber bottom result from Fig. 9. There are at the bottom of the pump chamber bottom horizon tal, inwardly formed locking lugs 57 forms out. Four such latching lugs spaced at the same angular distance are sufficient.

Referring to FIG. 1, the inlet valve V 1 is located in the pump chamber 8 immediately above the ground.

Furthermore, arrangements have been made to break the sealing membrane 51 in order to obtain cartridges to connect to the flow path A. In this regard, it is preceded that in the area of the passage opening 7 of the Spenderkop fes 2 a piercing mandrel 58 is formed, which penetrates into the opening 6 of the cartridge mouth 6 'at Andoc ken. 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 sufficient, so that the foil tab sticks to the mouth.

The effect of severing is in any case that the cartridge, owing to the form-locking means M formed as a thread, if applicable a steep thread, exerts a superimposed axial and rotational movement relative to the dispenser head 2 .

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.

Appropriately root the web walls 59 in the front edge of the Ringkra gene 42 or even extend into the inner wall of the passage opening 7 into it. This also has the advantage of chambering the passage opening 7 of the dispenser head. Since it is avoided by the fact that when removing the empty cartridge K for the purpose of inserting a fresh cartridge K in the area of the passage opening 7 remaining amount falls into the shell 28 and causes impurities there, which may complicate the insertion of a new cartridge or the corresponding hardening 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 Rotati, which are also favorable in this context ons movement creates when the cartridge is unscrewed a kind of ground cone (kind of drop cone).  

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 An made possible over the conical mass plug finally also forms the appropriate coupling moisture se.

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 confiscation 60 .

In the solution according to Fig. 9 is the reverse procedure. 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.

As far as the self-closing mode of the dispenser is concerned, as already briefly indicated above, according to FIG. 1, a fixed of the closing part 11 that overlaps the dispensing tube 9 from above is taken into account, whereby due to the axial mobility of the dispensing tube, this vertical closing part downwards is overflowed into the release position, as can be seen in FIG. 6.

This also applies in principle with regard to the solutions according to FIGS. 7 and 9, only that the locking part 11 is not fixed there, but is seated as a lid extension on the pivotable actuation handle 4 . 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 articulation and attack means are clarified by transferring the corresponding reference numbers from the previous examples.

Further, in Fig. 7 and 9 turn, the output tube 9, and the piston 12 created for mounting reasons as separate components and basic functional zugeord net today. Between the pressure piece 14 and the shaft 13 , a clearance F is also taken into account here, defined by longitudinal ribs 62 of the pressure piece, which finally step 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 , a kind of sealing ring educating, composed. In the inner space between the valve seat surface 52, the freitra quietly arranged valve flap extends 53rd

The cartridges K are filled in the manner of filling conventional dispensers, 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 being already 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, a previous co-filling of the Spen derkopfes can be dispensed with, since the filling of the head can be accomplished by actively inserting the trailing piston 39 .

The function of the dispenser is, briefly summarized, as follows: By pulling off a protective cap 64 which overlaps the dispenser head in some examples, the actuating key 4 can be shifted 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 moving the piston 12 or compressing the bellows 29 . The inlet valve V 1 closes due to the pressure prevailing 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 size. This results in the creation of a vacuum in the pump chamber. Accordingly, pasty mass is sucked out of the cartridge K into the pump chamber 8 via the input valve V 1 . This occurs primarily before the portion of pasty mass located in the rather long 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 V 1 in Fig. 13 should be mentioned that this has a cross-profiled stem with underside, radially outwardly directed projections, which prevent the valve body from coming out of its assigned position, but allow axial freedom of movement. Incidentally, it is a plate valve.

A further form of the different docking conditions results from the last two exemplary embodiments, namely FIGS . 19 and 20. As far as precautions based on the same or similar construction are used, the reference numerals 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 takes on two additional 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, the cover of the cartridge K circumscribing the central opening 6 is drawn in. As can be seen in FIG. 19, this blanket is basically designed as a blunt, pointed cone in the direction of the actuation button 4 . The latter can have deformations that increase the restoring force. Referring to FIG. 19 are the running concentrically to the central opening Faltstufen 66th The latter circulate in a ring. 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 as shown in FIG. 19 by that the bellows section 65 projecting upward sealing collar 41 can be screwed ver with the discharge 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 is effected tube inside by 67 of the output tube 9 projects a concentric shearing sealing cone in the interior of the sealing collar 41st The upper inner edge of the sealing collar 41 occurs in linear fashion against the rotationally symmetrical edge of the sealing cone 67th

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

To create a so-called strip dispenser, precautions are taken in such a way that the sealing collar 41 extends underneath the bellows section-forming ceiling of the cartridge in a short tube 68 extending into the cartridge space. 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 , which overlies the mass 5 , lies in the annular space between the tube 68 and the inner surface 40 of the cartridge. It lies as a strip on the mass strand formed in the sealing collar 41 or discharge tube 9 . It can be a mouthwash component if the underlying mass is toothpaste, for example.

What relates to the configuration according to Fig. 20, there is shown the discharge tube 9 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, further training is carried out in such a way that the delivery 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, a precaution is taken with regard to a uniform introduction of the actuating pressure in such a way that between the actuating button 4 and the bellows section 65 of the cartridge K there is a pressure ring 72 which, concentrically surrounding the dispensing tube 9 , rests on the top of the flat-conical bellows section 65 . The pressure ring occupies a horizontal position with the opening in the vertical. Its downward end face is rounded, so that no erosive effect on the bellows section 65 forming, resilient material.

The carry-on attack on the pressure ring 72 happens via Achsstum mel, which attack in recordings of the actuation button 4 . In this way, the pressure ring remains captive on the actuation key tiltable. The central opening 35 of the actuation button 4 takes into account the movement requirement of the pressure ring 72 . As can be seen in FIG. 20, first of all the stub axles 73 which bring about the growth of the pressure ring 72 in a transverse plane to the longitudinal central axis xx , and also transversely to the vertical arc pivoting movement of the actuation button 4 .

In order to implement packaging protection that 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 occurs with its upper edge sealing against the step of the cartridge K formed by wall offset. The edge jumps back a little in relation to the inner surface of the cartridge, so that there is certainly a situation suitable for draining.

As can be seen in the drawing, the central portion of the bottom plug 74 is retracted. It can be a mid-cutting retraction in the form of a groove, so that the screwing out of the bottom plug 74 can easily be carried out by means of a coin or the like. At an elevated point of the recovery there is then an air compensation opening 75 so that the space behind the trailing piston 39 does not get into a vacuum 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 described working examples according to the hydraulic principle.

The mass 5 is applied by deforming the bellows section 65 via the actuation button 4 . The corresponding volume reduction within the cartridge K brings, according to the supported trailing piston 39, a pushing out over the dispensing tube 9 , which, also key-operated, has primarily opened the orifice 10 , be it by moving the closing part 11 or by retracting the cone-shaped in FIG. 20 designed closing member 32 from the mouth opening 33 . By releasing the actuating 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 soak 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 switch to a wide variety of media and do 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 the basic position, that is, at the maximum level, the follower piston 39 5 supports according to Fig. With its lower annular lip 39 '' on a short annular shoulder 77 from. 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 having the dispenser mechanism, a pump 3 with inlet valve V 1 and output Sven til V 2, wherein the output valve V 2 has a discharge tube 9 arranged in the valve body. To accommodate this valve body, the end region 9 'of the dispensing tube 9 , as shown in Fig. 21, expanded. This expansion 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 expanded end portion 9 'extends substantially within the axial length range of the piston 12th The piston cover is pulled deep down so that there is a pot-shaped base body. The extension 9 'he still stretches within the pot space.

The attachment of the dispensing tube 9 on the piston 12 ge happens by way 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 upper ring groove 79 of the piston cover. The peripheral flank of the annular groove 79 is extended upwards. It forms a counter bead 80 which overlaps the annular bead 78 . The wall of which protrudes above the top of the piston cover. An annular groove 81 running in the back of the counterbead 80 creates the necessary soft space from when the parts to be connected are assigned by clips. The inner flank of the annular groove 79 takes the form of a truncated cone, so that there is a centering function.

The piston 12 is zen tral perforated in this embodiment, so that the de substance entering the pump chamber 8 through the piston through connection to the outlet channel formed by the discharge tube 9 wins. As he can see, the corresponding central piston opening forms a valve seat surface 12 'for the output valve V 2 . The valve seat surface 12 is funnel-shaped. It widens upwards. The output valve V 2 is designed in the lower area cylin drisch such that the lower horizontal circumferential edge de sealingly occurs against said valve seat surface 12 '.

The body of the outlet valve V 2 is under spring load in the closed position. For this purpose, the output valve V 2 is formed with spring struts 82 directed radially outwards. The latter go out approximately at the middle level of the axially guided output valve V 2 . 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 heel is roof-shaped and rotationally symmetrical. The struts 82 and the support feet 83 are supported in the lower inner corner of the heel. The adjoining the upper corner of paragraph 84 section of the dispensing tube 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 V 2 . The lower, essentially pot-shaped section of the outlet valve V 2 continues upwards into a cross shaft 85 with end-side corner rounding. The longitudinal strips of the cross shaft 85 slide so well on the inner wall of the section of the delivery tube there.

In the basic actuation position, the output valve V 2 assumes the release position shown in FIG. 22. Recognizable there occur the struts 22 in a kind of folding position, ie the right angle shown in FIG. 21 between the radially outward section and the section parallel to the longitudinal central axis xx passes into a folded position which is below 90 °. The restoring force inherent in the material causes the outlet valve V 2 to close immediately when the excess pressure in the pump chamber 8 subsides. Then the closing position shown in FIG. 21 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 embodiment the mouth opening 10 is closed by a plug 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, several, specifically a total of three annular shoulders 77 are provided for the trailing piston 39 .

The in the above description, the drawing and the Features of the invention disclosed in claims can be both individually as well as in any combination for the tangling  chung of the invention in its various forms to be of importance.

Claims (36)

1. Dispenser for pasty masses ( 5 ), with a dispenser head ( 2 ) and a mass storage container operably detachably connectable to the dispenser head by means of a positive connection, 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 reservoir designed as a cartridge ( K ) with a follower piston ( 39 ) has a sealing collar ( 41 ) for sealing the 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 ) drawn inward bezüg Lich the cartridge ( K ) is designed to cooperate with a in the composite state in the interior of the cartridge ( K ) projecting ring collar extension ( 43 ) of 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 form-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 ) are formed on the lower edge. 5. Dispenser, in particular according to one or more of the preceding claims, characterized in that the Kartu cal ( K ) forms a valve seat surface ( 52 ) for a valve in the dispenser head ( 2 ) attached (input valve V 1 ). 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 (inlet valve V 1 ) has a plate ( 54 ) shaped as a cut-out flap of an anchoring valve flap ( 53 ). 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 Spen derkopfes ( 2 ) is clip-fastened or this base, carton-based, forms. 9. Dispenser, in particular according to one or more of the preceding claims, characterized in that the Kartu cal ( K ) by a superimposed axial and rotational movement of the dispenser head ( 2 ) is releasable. 10. Dispenser, in particular according to one or more of the preceding claims, characterized in that the through 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 ) (recess 60 or projection 61 ). 13. Dispenser, in particular according to one or more of the preceding claims, characterized in that the push rod ( 58 ) is designed as a cone tip. 14. Dispenser, in particular according to one or more of the preceding claims, characterized in that the push rod ( 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 form closing means ( M ) of the cartridge ( K ) and the sleeve ( 28 ) of the dispenser in the region of the wiper lips ( 39 ', 39 '') of After running piston ( 39 ) are formed in the filling state. 16. Donors, especially after one or more of the above forthcoming claims, characterized in that the shape closing agent zone is stiffened by wall offset. 17. Dispenser, in particular according to one or more of the preceding claims, characterized in that a rotary handle ( D ) of the cartridge ( K ) from the exhibited section ( 46 ) of the wall offset is formed, and that the front edge of this wall section, the footprint ( 48 ) of the donor. 18. Dispenser, in particular according to one or more of the preceding claims, characterized in that the cylin derwand of the cartridge ( K ) is formed with a much smaller wall thickness than the sleeve ( 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 Kartu's 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, the dispensing tube ( 9 ) overlapping closing part ( 11 ) and an axial movement of the dispensing tube ( 9 ) downwards in an open position. 23. Dispenser, in particular according to claim 1, wherein the dispenser head is formed with a molded on the actuating handle closure member, characterized by an axially movable downward in the open position dispensing tube Chen ( 9 ). 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 ) concentric with the central opening ( 6 ) has duri folding steps ( 66 ). 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 carto-side end of the dispensing tube ( 9 ) engages the corresponding end of the sealing collar ( 41 ) like a screw cap, with a concentric sealing cone ( 67 ) of the dispensing tube ( 9 ) sealingly protrudes into the interior of the sealing collar ( 41 ). 28. Dispenser, in particular according to one or more of the preceding claims, characterized in that the sealing collar ( 41 ) continues in the opposite direction into a short tube ( 68 ) reaching into the cartridges, which at a stepped transition point ( 69 ) to Sealing collar ( 41 ) has openings ( 70 ) for applying a mass component ( 71 ) to the paste strand. 29. Dispenser, in particular according to one or more of the preceding claims, characterized in that the outlet 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 member ( 32 ), the counter-closing surface of which is the mouth opening ( 33 ) of the Dispenser head ( 2 ). 31. Dispenser, in particular according to one or more of the preceding claims, characterized in that between the actuating button ( 4 ) and bellows section ( 65 ) of the cartridge ( K ), a pressure ring ( 72 ) is connected, which, the dispensing tube chen ( 9 ) concentrically surrounding, 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 longitudinal central axis ( xx ) of the rotationally symmetrical cartridge ( K ) intersecting transverse plane with the actuating button ( 4 ) is waxed. 33. Dispenser, in particular according to one or more of the preceding claims, characterized by an at an elevated point an air compensation opening ( 75 ) leaving bottom plug ( 74 ) of the cartridge ( K ). 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 the top of the piston in the piston cover and that a loosely inserted outlet valve ( V 2 ) with a valve seat surface ( 12 ') formed in the piston cover cooperates. 36. Dispenser, in particular according to one or more of the preceding claims, characterized in that the output valve ( V 2 ) by means of molded spring struts ( 82 ) is supported on a circumferential shoulder ( 84 ) of the dispensing tube ( 9 ).