EP2747898B1 - System composed of cartridges and mixers - Google Patents

System composed of cartridges and mixers Download PDF

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Publication number
EP2747898B1
EP2747898B1 EP12744010.5A EP12744010A EP2747898B1 EP 2747898 B1 EP2747898 B1 EP 2747898B1 EP 12744010 A EP12744010 A EP 12744010A EP 2747898 B1 EP2747898 B1 EP 2747898B1
Authority
EP
European Patent Office
Prior art keywords
mixer
cartridge
cartridges
nozzles
mixers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12744010.5A
Other languages
German (de)
French (fr)
Other versions
EP2747898A1 (en
Inventor
Alexander Bublewitz
Jens-Peter Reber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3lmed GmbH
Original Assignee
3lmed GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/EP2011/068784 external-priority patent/WO2012055926A1/en
Application filed by 3lmed GmbH filed Critical 3lmed GmbH
Priority to EP12744010.5A priority Critical patent/EP2747898B1/en
Publication of EP2747898A1 publication Critical patent/EP2747898A1/en
Application granted granted Critical
Publication of EP2747898B1 publication Critical patent/EP2747898B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B01F33/50112—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held of the syringe or cartridge type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/56—General build-up of the mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00596—The liquid or other fluent material being supplied from a rigid removable cartridge having no active dispensing means, i.e. the cartridge requiring cooperation with means of the handtool to expel the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/2305—Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00509—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the bayonet type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B05C17/00566—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components with a dynamic mixer in the nozzle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/325—Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents

Definitions

  • the invention relates to a system comprising several different types of cartridges of the same type and several different types of mixers of the same type which can be connected to them.
  • the cartridges are preferably designed as double cartridges with two interconnected containers, each of which has an outlet opening or an outlet nozzle.
  • the containers can be arranged one behind the other, next to one another (for example, parallel) or inside one another (tube-in-tube).
  • the mixers are each provided with two inlet openings or nozzles that can be coupled to the outlet openings or nozzle of the cartridge.
  • the system comprises at least two types of cartridges, which differ in that the ratio of the volumes of their containers is different.
  • Cartridges of the same type are understood to mean cartridges which, regardless of the volume ratios of their containers, have an identical total volume. Cartridges of the same type can often be actuated with the same dispensing device.
  • it is common to empty so-called large cartridges with a total filling quantity of both containers of 380 ml by means of a motor-driven dispenser.
  • large cartridges for example directly filled cartridges and cartridges filled with tubular bags, or cartridges in which the volume or cross-sectional ratios of the containers are different.
  • all these large cartridges are understood to be of the same type if they have the same total volume.
  • mixers for example, between dynamic mixers with a drivable mixing element and static mixers with a non-driven mixing helix.
  • Dynamic mixers which are often used with large cartridges, are considered to be mixers of the same type, even if the cross-sections of the mixing tubes can vary or a storage or reservoir chamber is provided for some dynamic mixers and not for others.
  • Static mixers which are often used with the smaller 50 ml cartridges, are also considered to be similar mixers, regardless of differences in the length or cross-section of the respective mixing tube or regardless of the presence of a storage or reservoir chamber in the inlet area of the mixer or regardless of the number of mixing elements.
  • a double cartridge with two containers with a 1: 1 ratio of the volumes of their containers and a matching dynamic mixer are from the EP 1 943 012 B1 known.
  • the mixer can be connected to the double cartridge by inserting an inlet port of the mixer into an outlet port of one container of the double cartridge, while the second inlet port of the mixer is plugged onto an outlet port of the smaller container of the double cartridge.
  • the diameter of the inlet and outlet nozzles are corresponding to Volume ratio of the containers of different sizes.
  • a coding nose is provided on the mixer which engages in a corresponding recess of the cartridge when the mixer is placed in its correct orientation in relation to the double cartridge, ie so that the larger inlet port of the mixer and the larger outlet port of the cartridge as well as the smaller inlet port of the mixer and the smaller outlet port of the cartridge can interlock.
  • a cartridge with an associated mixer is known, at least one strip being provided on the mixer which can be brought into engagement in a corresponding groove on the neck of the cartridge connection.
  • the mixer can have an incision which is used to receive a cam on the cartridge connection.
  • the storage cylinders from the EP 0 600 138 B1 known cartridges can each have either the same or different volumes or cross-sections / geometries. In known systems, it is usually customary for each cartridge with a different volume ratio of the containers to be individually assigned a mixer which, with regard to the cross-sections of the inlet and outlet openings, matches the cartridge.
  • a mixer on two different cartridges with different volume ratios, the correct assignment of the mixer that is suitable for a cartridge often being made by a colored marking on the cartridge and the mixer.
  • a 50 ml 1: 1 cartridge for example, there are several mixers with different lengths, diameters and mixing elements whose coding nose is identical, sits in the same position and which have identical cross-sections of the inlet channels and thus all fit on one cartridge.
  • there are different types of dental materials for this 50 ml 1: 1 cartridge (Viscosity, material and kinetics) and can therefore only be dispensed with a certain type of mixer (dispensing force) and homogeneously mixed.
  • the object of the present invention is, for example, based on the US 2010/0102088 A1 to provide a system of several different cartridges and mixers, which can be produced with reduced manufacturing effort and at the same time enables a defined assignment of a mixer that fits a cartridge.
  • the invention is based on the idea that the size of the inlet openings or nozzle is the same for each type of mixer and the size of the outlet openings or nozzle is the same for each type of cartridge. Due to the identical design of the inlet openings or stubs and the outlet openings or stubs, the interface between cartridge and mixer can be designed largely identically, which means that only minimal modifications to the production tools are required.
  • each mixer type is equipped with a guide projection extending in the axial direction of the mixer that is different in cross section from the other types of mixers, and that each cartridge type is equipped with one of the other types of cartridges in cross-section different opening for receiving a guide projection of a mixer is equipped.
  • the inventive guide projection of the mixer with the correspondingly designed opening of the cartridge fulfills the function of, for example, from the EP 0 600 138 B1 or the EP 1 943 012 B1
  • the known coding for aligning the mixer relative to the cartridge also has the function that only certain types of mixers can be connected to certain types of cartridges, although the inlet openings or nozzles of the mixer and the outlet openings or nozzles of the cartridges are in themselves a connection of each mixer type allowed with each type of cartridge.
  • the design of the interface between cartridge and mixer only the cross-sections of the guide projections and corresponding openings have to be modified, so that a considerably lower manufacturing cost is incurred than with the individual design of the interface for each mixer and cartridge type.
  • the cross-sectional ratios of the containers of, for example, 1: 1, 1: 2, 1: 4, 1:10, which are usual for the smaller 50 ml cartridges, can all be designed with an interface that is identical except for the cross section of the respective guide projections.
  • the guide projection is provided on the mixer, while a correspondingly shaped opening for receiving the guide projection is provided on the cartridge.
  • a guide projection can be formed on the cartridge which engages in a correspondingly designed opening of the mixer.
  • the inlet openings or stubs and outlet openings or stubs are not regarded according to the invention as a guide projection or opening. Rather, the guide projection is an additional feature provided on the mixer or the cartridge.
  • each type of cartridge in order to attach a mixer to a cartridge, is provided with an internal thread and each type of mixer is provided with an external thread.
  • the external thread of each mixer type can be screwed into the respective internal thread of each cartridge type.
  • a ring is provided on the cartridge which surrounds the outlet openings or connections and is provided with the internal thread, while the mixer has a mixer housing provided with the external thread, which can be freely rotated to form a cover or insert, which has the inlet openings or stubs of the mixer.
  • Each type of cartridge can preferably be connected to exactly one of the types of mixers and / or each type of mixer can be connected to only one of the types of cartridges. In the former case, for example, one mixer can be used for two different types of cartridges. In the second case, for example, two different mixers can be placed on the same type of cartridge.
  • the design according to the invention of the inlet openings or nozzles and the outlet openings or nozzles with an identical design for all mixer types and for all cartridge types means that the cross-sections of the inlet openings or nozzle and the outlet openings or nozzle close to the maximum in the system expected volume penetration are adjusted. This can be perceived as disadvantageous in particular in the case of ratios of the volumes of the container of the cartridge which differ greatly from 1: 1, since the flow resistance of the components differs greatly as a result. In this case in particular, it is preferred if an element is provided in at least one outlet opening or at least one outlet nozzle of the cartridge which reduces the size of the lumen.
  • This can, for example, be an insert or an element formed in one piece with the cartridge, which reduces the cross section of the outlet opening or the outlet connection and / or acts as a throttle point.
  • This element, which has reduced the lumen, is preferably arranged in such a way that it is provided outside of the actual contact area between mixer and cartridge, so that this does not impair the placement of the mixer on the cartridge.
  • the guide projections of the mixers and / or the openings of the cartridges can be ring segment-shaped or polygonal in cross section.
  • the guide projections of different types of mixers and / or the openings of different types of cartridges have projections and / or differently designed and / or differently positioned in cross section
  • Recesses In a departure from the examples mentioned above, other configurations of the cross-sections of the guide projections or the openings are also possible, provided that this enables a specific mixer to be assigned to a specific cartridge.
  • the system according to the invention can have so-called dynamic mixers, ie mixers with a mixing element that can be driven in rotation, or static mixers with a mixing element that cannot be driven.
  • dynamic mixers ie mixers with a mixing element that can be driven in rotation
  • static mixers with a mixing element that cannot be driven.
  • the system according to the invention it is also possible for the system according to the invention to have both dynamic mixers and static mixers.
  • two types of mixers in the system can also differ in that the mixing space provided in each mixer has different diameters for different types of mixers. In this way, for example, different viscosities of the materials to be processed can be taken into account.
  • the mixers of the system according to the invention are preferably designed in such a way that their guide projections are arranged at a distance from the inlet openings or connecting pieces and at a distance from the external thread.
  • Neither the thread as a fastening means nor the inlet openings or inlet connections for connecting the mixer to the cartridge thus serve as a means for assigning a mixer to a cartridge type.
  • the respective guide projection is longer than the socket and is active before the thread engagement.
  • the partition and the guide projection of the mixer protrude in the axial direction over the inlet openings or nozzles, so that these two elements also prevent the inlet openings or nozzles of the mixer from meeting the outlet openings or nozzles of the cartridge in an incorrect alignment .
  • the guide projection is provided with a (mechanical) coding as described above, i.e. with a contour which is adapted to the contour of an opening in the cartridge in such a way that the mixer can only be connected to the cartridge in a certain orientation.
  • the outlet openings or nozzle of the cartridges can preferably be closed with a removable stopper.
  • the sealing plug can be connected to the cartridge in the delivery state and is removed before the cartridge is used for the first time.
  • the outlet openings or nozzles of cartridges of the same type can each be closed with identical (structurally identical) sealing plugs.
  • Sealing plug achieved a standardization and thus a cost saving.
  • the sealing plug has two nozzles that can be inserted into the outlet openings or nozzles of the cartridges and at least one latching element that can be snapped into place on the cartridges, which is connected to the nozzle via an elastically twistable torsion element in such a way that the nozzle is relative to the at least one latching element are elastically rotatable.
  • the latching element is preferably connectable to the internal thread of the cartridge, and in particular is designed as a hook which engages behind the thread end in the circumferential direction.
  • the torsion element makes it possible that the part of the closure plug provided with the at least one locking element is rotated relative to the part of the closure plug provided with the nozzle in order to release the locking connection.
  • the locking hook itself and / or at least one web adjacent to the locking hook in the circumferential direction is supported on a thread of the cartridge in such a way that the sealing plug is lifted from the cartridge when the at least one locking element is rotated.
  • each a double cartridge 1a and 1b is shown, which consist of two interconnected containers 2, 3 and a connection area 4.
  • a comparison of the Figures 1a and 1b shows that the containers 2, 3 can have different cross sections and different volumes for the same length.
  • the ratio of the volumes of the two containers 2 and 3 in the embodiment according to FIG Figure 1a for example 10: 1 while the ratio of the volumes of the containers in Figure 1b for example 1: 1, the total volume of the cartridges 1a and 1b being identical (eg 50ml).
  • the cartridges 1a and 1b are thus considered to be two different types of similar cartridges.
  • connection area 4 of the cartridges has an outlet connection 5 or 6 for each container 2 or 3.
  • the Outlet nozzles 5, 6 can protrude from a plate 7, which is circular in the embodiment shown, and are additionally surrounded by a ring 8 which is provided with an internal thread 9.
  • a through opening is also formed in the plate 7, the opening 10a in FIG Figure 1a a slightly different cross-section from that of the opening 10b in FIG Figure 1b having.
  • both openings 10a, 10b are each designed approximately like a ring segment and have a projection protruding into the opening at different positions. Further examples of the cross section of such openings are shown in FIGS Figures 1c and 1d shown, these differing by the position of the projection within the ring segment-like opening.
  • a guide projection 13a, 13b, 13c is provided on the insert, which extends parallel to the inlet connection in the direction of the cartridge.
  • the guide projection has a cross section which is adapted to the cross section of the openings in the connection area 4 of the cartridges.
  • the cross-section of the guide projection 13a is selected so that it can be inserted into the opening 10a of the cartridge 1a, but not into the opening 10b of the Cartridge 1b.
  • the guide projection 13b of the mixer 11b is designed so that it can be inserted into the opening 10b of the cartridge 1b, but not into the opening 10a of the cartridge 1a.
  • the guide projection 13c of the mixer 11c is designed such that it can be inserted both into the opening 10a of the cartridge 1a and into the opening 10b of the cartridge 1b.
  • the guide projections 13a and 13b are thus each comparable with an individual key and the guide projection 13c with a general lock.
  • a plurality of locking cams 14 are provided on the ring 8 of the cartridges on the end face facing the mixer, while locking counter cams 15 are formed on the respective housing on the mixer.
  • the locking cams 14 and locking counter cams 15 are arranged in such a way that a locking counter cam 15 snaps over a locking cam 14 when the mixer with its external thread 12 is screwed completely into the internal thread 9 of a cartridge.
  • FIG 4a a dynamic mixer 20a with a suitable cartridge 21a is shown.
  • the structure of the cartridge 21a essentially corresponds to that of the cartridges 1a and 1b described above, the connection area 4 of the cartridge 21a being designed in such a way that instead of the outlet nozzles 5, 6 protruding over the plate 7, only outlet openings 5, 6 are provided.
  • a through opening is provided between the outlet openings 5, 6, through which a drive shaft for the rotational drive of the mixing element of the mixer 20a can be passed.
  • two ring segment-like openings 22 each formed.
  • the mixer 20a is provided with two guide projections 23 which are likewise ring segment-shaped in cross section and which extend parallel to the inlet connection 24 and 25, respectively.
  • the mixer 20a is fastened to the cartridge 21a as described above, in that the guide projections 23 are first inserted into the corresponding openings 22 of the cartridge 21a.
  • the mixer 20a is connected to the cartridge 21a, the inlet nozzles 24, 25 of the mixer 20a also engaging the outlet openings 5 and 6 of the cartridge 21a.
  • the mixer 20b instead of the two guide projections 23, only a single guide projection 23 with a ring segment-shaped cross section is provided on the mixer 20b.
  • the cartridge 21b also has only one opening 22 which is ring segment-shaped in cross section.
  • the mixer 20b can therefore only be connected to the cartridge 21b, but not to the cartridge 21a.
  • the mixer 20a can only be connected to the cartridge 21a, but not to the cartridge 21b.
  • Figures 5 and 6 show a sealing plug 26 with two nozzles 27 that can be inserted into the outlet openings or nozzles 5, 6 of a cartridge, as well as at least one latching element 28 that can be latched onto the cartridges.
  • the latching element 28 is designed as a latching hook that connects to the nozzle 27 via an elastically twistable torsion element 29 is connected in such a way that the connecting pieces 27 are elastically rotatable relative to the locking element 28.
  • Figure 5 shows that the locking element 28 can be connected to the internal thread 9 of the cartridge in that the hook engages behind the thread end in the circumferential direction.
  • the torsion element 29 makes it possible that the ring-like part provided with the at least one locking element of the Closure plug is rotated relative to the part of the closure plug provided with the nozzle 27 in order to release the latching connection.
  • the locking hook 28 and two webs 30, which are provided adjacent to the locking hook in the circumferential direction, are supported on a thread of the cartridge. This has the effect that the sealing plug 26 is lifted off the cartridge when the annular part is rotated with the latching element 28, so that the connecting pieces 27 are pulled out of the outlet openings or connecting pieces 5, 6 of the cartridge.
  • FIGS. 7 and 8 a one-piece closure element that can be placed on a cartridge instead of the mixer.
  • two plugs 27 or nozzles are provided, which can be plugged into the outlet nozzles 5 or 6 in a sealing manner.
  • the plugs 27 are each connected via a web 29, which acts as a torsion spring, to a sleeve which can be inserted into the collar of the outlet end of the cartridge.
  • a widened edge of the sleeve which is provided with knurling, rests on the end face of the collar when the closure element is placed onto the cartridge in a sealing manner.
  • the closure element can be secured in the collar (ring 8) by means of locking hooks 28, which engage behind the thread segments of the internal thread 9 and thus lock the closure element on the cartridge.
  • the sleeve with the knurling can be slightly rotated, the web 29 twisting, since the plugs 27 initially stick further into the outlet connection 5 or 6.
  • This twisting of the web 27 acting as a torsion element makes it possible for the latching hooks 27 to be brought out of engagement with the thread segments of the internal thread 9 so that the closure element can be removed from the cartridge.
  • the sealing plug has a positioning tongue (or a guide projection 23) which can be designed in such a way that it is visible to the outside for the user after passing through a corresponding opening in the cartridge.
  • This has the advantage of an optical visual inspection as to whether the sealing plug and / or the positioning tongue has been properly inserted.
  • the torsion element of the sealing plug can as in Figure 7 shown have a radial S-shape in order to ensure a corresponding rotational path even with small sealing plug diameters. Even the one in the Figures 7 and 8
  • the sealing plug shown is in one piece, which, compared with known multi-part closures, offers the advantage of simpler manufacture of the sealing plug.
  • FIG. 9 to 11 shows a dispensing piston with a zipper that can be used in a cartridge system according to the invention for dispensing the components from the containers.
  • the piston is provided with a vent that allows air to exit the respective container when it is filled with the component and the dispensing piston is used. Since some substances tend to react with the residual air remaining in the cartridge after filling the cartridge and inserting the piston, efforts are made to allow the residual air to escape from the container as completely as possible. Any residual air remaining in the container between the piston and the substance in the cartridge is also felt to be disadvantageous because the residual air forms a compressible cushion, which makes the metering more difficult when applying the substance from the cartridge.
  • the piston 100 shown has a base body 101 which has a side wall provided with sealing means and an end wall in which a vent opening 102 is provided.
  • This vent opening 102 extends through the entire base body, so that an exchange of air between the side of the front wall (located in the conveying direction) and the rear of the piston 100 is possible.
  • a closure element 103 is rotatably mounted in the vent opening 102, it being possible to open or close a vent channel by a relative rotation of the closure element 103 in the vent opening 102. In other words, it is possible, with a rotation of the closure element 103, to establish or prevent the flow connection between the side of the piston 100 located in the conveying direction and the rear side of the piston.
  • a circumferential projection 104 is formed on the inner surface of the vent opening 102, which protrusion engages in a corresponding groove 105 in the closure element 103 in order to lock them together.
  • Both the projection 104 and the groove 105 are each provided with perforations which can be brought into overlap in order to release a ventilation channel, or can be brought out of overlap in order to close the ventilation channel.
  • the opening runs through the groove 105 which is perpendicular to this and which can be formed slightly deeper than the opening so that the projection 104 can reliably close the openings.
  • the star-shaped vent slots 106 are tapered so that the total cross-sectional area is reduced to a fraction, e.g. 1/100, of the original cross-sectional area. In this way trapped air can continue to escape unhindered when the cartridge is closed, but the access of impression material to the vent valve is made very difficult.
  • Figure 12 shows a sectional view of a mixer and a cartridge of the system according to the invention, the case being shown that a user tries to place the mixer incorrectly (tilted) on the cartridge.
  • An important feature of the system according to the invention is the avoidance of an undesired carryover of the catalyst component and the base component and which could lead to the other paste component in each case and to their contamination. This could occur through accidental, undesired introduction of the guide projection first into one channel, then into the other, or from touching the inlet and outlet channels of the cartridge and mixer when the cartridge and mixer are tilted in the wrong position, or similarly when a stopper is tilted back on.
  • the guide projection on the mixer (or on a sealing plug) is designed in such a way that it cannot be introduced into the outlet channels.
  • the partition wall 31 is dimensioned in such a way that it allows only small tilt angles between the outlet channels of the cartridge. Contours can optionally be attached to the outlet channels of the cartridge, which further restrict the clearance for the partition 31 used with regard to unfavorable tilt angles.
  • a sealing plug can have an additional sleeve-shaped collar (at the point where the thread is located on the mixer) and thus also avoids unfavorable tilt angles.

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  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

Die Erfindung betrifft ein System aus mehreren verschiedenen Typen von gleichartigen Kartuschen und mehreren verschiedenen Typen von gleichartigen, mit diesen verbindbaren Mischern. Die Kartuschen sind dabei vorzugsweise als Doppelkartuschen mit zwei miteinander verbundenen Behältern ausgebildet, die jeweils eine Auslassöffnung oder einen Auslassstutzen aufweisen. Die Behälter können dabei hintereinander, nebeneinander (bspw. parallel) oder ineinander (tube-in-tube) angeordnet sein. Die Mischer sind jeweils mit zwei an die Auslassöffnungen oder -stutzen der Kartuschen ankoppelbaren Einlassöffnungen oder -stutzen versehen. Das System umfasst dabei wenigstens zwei Typen von Kartuschen, die sich darin unterscheiden, dass das Verhältnis der Volumina ihrer Behälter verschieden ist.The invention relates to a system comprising several different types of cartridges of the same type and several different types of mixers of the same type which can be connected to them. The cartridges are preferably designed as double cartridges with two interconnected containers, each of which has an outlet opening or an outlet nozzle. The containers can be arranged one behind the other, next to one another (for example, parallel) or inside one another (tube-in-tube). The mixers are each provided with two inlet openings or nozzles that can be coupled to the outlet openings or nozzle of the cartridge. The system comprises at least two types of cartridges, which differ in that the ratio of the volumes of their containers is different.

Unter gleichartigen Kartuschen werden Kartuschen verstanden, die, unabhängig von den Volumenverhältnissen ihrer Behälter, ein identisches Gesamtvolumen haben. Häufig sind gleichartige Kartuschen mit dem selben Austraggerät betätigbar. Im Dentalbereich ist es z.B. üblich, sogenannte Großkartuschen mit einer Gesamtfüllmenge beider Behälter zusammen von 380 ml mittels eines motorisch angetriebenen Austraggeräts zu entleeren. Bei solchen Großkartuschen existieren unterschiedliche Typen, bspw. direkt befüllte Kartuschen und mit Schlauchbeuteln befüllte Kartuschen, oder Kartuschen, bei denen die Volumen- oder Querschnittsverhältnisse der Behälter verschieden sind. Alle diese Großkartuschen werden jedoch als gleichartig verstanden, wenn sie das gleiche Gesamtvolumen haben. Weiter existieren auch kleinere Kartuschen mit einer Gesamtfüllmenge von bspw. 50 ml, die häufig mittels einer handbetätigten Pistole entleert werden können. Diese kleineren Kartuschen gelten ebenfalls unabhängig davon, ob das Volumen- oder Querschnittsverhältnis der Behälter bspw. 1:1, 2:1, 4:1 oder 10:1 beträgt, als gleichartig, sofern sie das gleiche Gesamtvolumen haben. Hinsichtlich der Austraggeräte existieren bei diesen volumenmäßig kleineren Kartuschen insoweit Unterschiede, als Kartuschen mit einem Volumen- oder Querschnittsverhältnis der Behälter von 1:1 und 2:1 mit einer Pistole betätigt werden können, während Kartuschen mit einem Volumen- oder Querschnittsverhältnis der Behälter von 4:1 und 10:1 mit einer hinsichtlich des Kolbenabstands geringfügig anderen Pistole betätigt werden.Cartridges of the same type are understood to mean cartridges which, regardless of the volume ratios of their containers, have an identical total volume. Cartridges of the same type can often be actuated with the same dispensing device. In the dental field, for example, it is common to empty so-called large cartridges with a total filling quantity of both containers of 380 ml by means of a motor-driven dispenser. There are different types of such large cartridges, for example directly filled cartridges and cartridges filled with tubular bags, or cartridges in which the volume or cross-sectional ratios of the containers are different. However, all these large cartridges are understood to be of the same type if they have the same total volume. There are also smaller cartridges with a total capacity of 50 ml, for example, which can often be emptied using a hand-operated pistol. These smaller cartridges also apply regardless of whether the volume or Cross-sectional ratio of the containers is, for example, 1: 1, 2: 1, 4: 1 or 10: 1, as being of the same type, provided they have the same total volume. With regard to the dispensing devices, these smaller cartridges in terms of volume differ insofar as cartridges with a volume or cross-sectional ratio of the containers of 1: 1 and 2: 1 can be operated with a pistol, while cartridges with a volume or cross-sectional ratio of the containers of 4: 1 and 10: 1 can be operated with a slightly different pistol in terms of piston distance.

In gleicher Weise unterscheidet man bei Mischern bspw. zwischen dynamischen Mischern mit einem antreibbaren Mischelement und statischen Mischern mit einer nicht angetriebenen Mischwendel. Dynamische Mischer, die häufig mit Großkartuschen verwendet werden, gelten dabei als gleichartige Mischer, auch wenn die Querschnitte der Mischrohre variieren können oder bei einigen dynamischen Mischern eine Stau- oder Reservoirkammer vorgesehen ist und bei anderen nicht. Statische Mischer, die häufig mit den kleineren 50 ml Kartuschen verwendet werden, gelten dabei ebenfalls als gleichartige Mischer, unabhängig von Unterschieden in der Länge oder dem Querschnitt des jeweiligen Mischrohres oder unabhängig von dem Vorhandensein einer Stau- oder Reservoirkammer im Einlassbereich des Mischers oder unabhängig von der Anzahl der Mischelemente.In the same way, a distinction is made in mixers, for example, between dynamic mixers with a drivable mixing element and static mixers with a non-driven mixing helix. Dynamic mixers, which are often used with large cartridges, are considered to be mixers of the same type, even if the cross-sections of the mixing tubes can vary or a storage or reservoir chamber is provided for some dynamic mixers and not for others. Static mixers, which are often used with the smaller 50 ml cartridges, are also considered to be similar mixers, regardless of differences in the length or cross-section of the respective mixing tube or regardless of the presence of a storage or reservoir chamber in the inlet area of the mixer or regardless of the number of mixing elements.

Eine Doppelkartusche mit zwei Behältern mit einem von 1:1 unterschiedlichem Verhältnis der Volumina ihrer Behälter und ein hierzu passender dynamischer Mischer sind aus der EP 1 943 012 B1 bekannt. Der Mischer kann mit der Doppelkartusche verbunden werden, indem ein Einlassstutzen des Mischers in einen Auslassstutzen des einen Behälters der Doppelkartusche eingesteckt wird, während der zweite Einlassstutzen des Mischers auf einen Auslassstutzen des kleineren Behälters der Doppelkartusche aufgesteckt wird. Die Durchmesser der Ein- und Auslassstutzen sind entsprechend dem Volumenverhältnis der Behälter unterschiedlich groß. Um den Mischer in der richtigen Orientierung auf die Doppelkartusche aufsetzen zu können, ist an dem Mischer eine Kodiernase vorgesehen, welche in eine entsprechende Ausnehmung der Kartusche eingreift, wenn der Mischer in seiner in Bezug auf die Doppelkartusche richtigen Ausrichtung aufgesetzt wird, d.h. so, dass der größere Einlassstutzen des Mischers und der größere Auslassstutzen der Kartusche sowie der kleinere Einlassstutzen des Mischers und der kleinere Auslassstutzen der Kartusche ineinander eingreifen können.A double cartridge with two containers with a 1: 1 ratio of the volumes of their containers and a matching dynamic mixer are from the EP 1 943 012 B1 known. The mixer can be connected to the double cartridge by inserting an inlet port of the mixer into an outlet port of one container of the double cartridge, while the second inlet port of the mixer is plugged onto an outlet port of the smaller container of the double cartridge. The diameter of the inlet and outlet nozzles are corresponding to Volume ratio of the containers of different sizes. In order to be able to place the mixer in the correct orientation on the double cartridge, a coding nose is provided on the mixer which engages in a corresponding recess of the cartridge when the mixer is placed in its correct orientation in relation to the double cartridge, ie so that the larger inlet port of the mixer and the larger outlet port of the cartridge as well as the smaller inlet port of the mixer and the smaller outlet port of the cartridge can interlock.

Weiter ist aus der EP 0 600 138 B1 oder der US2010/0102088 A1 eine Kartusche mit einem zugehörigen Mischer bekannt, wobei am Mischer mindestens eine Leiste vorgesehen ist, die in eine entsprechende Nut am Hals des Kartuschen-Anschlusses in Eingriff gebracht werden kann. Alternativ kann der Mischer einen Einschnitt erhalten, der zur Aufnahme eines Nockens am Kartuschen-Anschluss dient. Die Vorratszylinder der aus der EP 0 600 138 B1 bekannten Kartusche können jeweils entweder gleiche oder voneinander verschiedene Volumina beziehungsweise Querschnitte/Geometrien aufweisen.
Bei bekannten Systemen ist es meist üblich, dass jeder Kartusche mit unterschiedlichem Volumenverhältnis der Behälter individuell ein Mischer zugeordnet ist, der bezüglich der Querschnitte der Ein- und Auslassöffnungen zu der Kartusche passt. Teilweise ist es auch möglich, einen Mischer auf zwei verschiedene Kartuschen unterschiedlicher Volumenverhältnisse aufzusetzen, wobei die richtige Zuordnung des für eine Kartusche passenden Mischers häufig durch eine farbliche Markierung an der Kartusche und dem Mischer erfolgt. So gibt es z.B. für eine 50 ml 1:1 Kartusche mehrere Mischer mit unterschiedlichen Längen, Durchmessern und Mischelementen, deren Codierungsnase identisch ist, an der gleichen Position sitzt und die identische Querschnitte der Einlasskanäle besitzen und somit alle auf eine Kartusche passen. Andererseits gibt es für diese 50 ml 1:1-Kartusche Dentalmaterialien, die verschiedenen Typs (Viskosität, Material und Kinetik) sind und deshalb nur mit einem bestimmten Mischertyp austragbar (Austragskraft) und homogen mischbar sind. Dies wird nach dem Stand der Technik nur durch eine Farbcodierung des VerschlussStopfens auf der Kartusche im Auslieferungszustand und den von Dentalherstellern freigegebenen korrespondierenden Mischer mit der gleichen Farbcodierung sichergestellt. Allerdings kann nach mehrmaligem Gebrauch der Kartusche durch Verwechslung versehentlich ein anderer nicht-freigegebener Mischer aufgesetzt werden, was zu schlechten Mischergebnissen und letztlich zu einem ungenügenden Arbeitsergebnis beim Patienten führt.Next is from the EP 0 600 138 B1 or the US2010 / 0102088 A1 a cartridge with an associated mixer is known, at least one strip being provided on the mixer which can be brought into engagement in a corresponding groove on the neck of the cartridge connection. Alternatively, the mixer can have an incision which is used to receive a cam on the cartridge connection. The storage cylinders from the EP 0 600 138 B1 known cartridges can each have either the same or different volumes or cross-sections / geometries.
In known systems, it is usually customary for each cartridge with a different volume ratio of the containers to be individually assigned a mixer which, with regard to the cross-sections of the inlet and outlet openings, matches the cartridge. In some cases it is also possible to place a mixer on two different cartridges with different volume ratios, the correct assignment of the mixer that is suitable for a cartridge often being made by a colored marking on the cartridge and the mixer. For a 50 ml 1: 1 cartridge, for example, there are several mixers with different lengths, diameters and mixing elements whose coding nose is identical, sits in the same position and which have identical cross-sections of the inlet channels and thus all fit on one cartridge. On the other hand, there are different types of dental materials for this 50 ml 1: 1 cartridge (Viscosity, material and kinetics) and can therefore only be dispensed with a certain type of mixer (dispensing force) and homogeneously mixed. According to the state of the art, this is only ensured by a color coding of the stopper on the cartridge in the delivery state and the corresponding mixer approved by dental manufacturers with the same color coding. However, if the cartridge has been used several times, a different mixer that has not been approved can be accidentally attached, which leads to poor mixing results and ultimately to an unsatisfactory result for the patient.

Aufgabe der vorliegenden Erfindung ist es beispielsweise ausgehend von der US 2010/0102088 A1 , ein System aus mehreren verschiedenen Kartuschen und Mischern bereitzustellen, welches mit reduziertem Fertigungsaufwand herstellbar ist und gleichzeitig eine definierte Zuordnung eines zu einer Kartusche passenden Mischers ermöglicht.The object of the present invention is, for example, based on the US 2010/0102088 A1 to provide a system of several different cartridges and mixers, which can be produced with reduced manufacturing effort and at the same time enables a defined assignment of a mixer that fits a cartridge.

Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruchs 1 gelöst. Der Erfindung liegt dabei der Gedanke zugrunde, dass die Größe der Einlassöffnungen oder -stutzen bei jedem Mischertyp und die Größe der Auslassöffnungen oder -stutzen bei jedem Kartuschentyp gleich ist. Durch die identische Gestaltung der Einlassöffnungen oder -stutzen und der Auslassöffnungen oder -stutzen kann das Interface zwischen Kartusche und Mischer weitestgehend identisch gestaltet werden, wodurch nur minimale Modifikationen an den Herstellungswerkzeugen erforderlich sind. Weiter ist es erfindungsgemäß vorgesehen, dass zur Zuordnung wenigstens eines Mischertyps zu wenigstens einem Kartuschentyp jeder Mischertyp mit einem von den anderen Typen von Mischern im Querschnitt verschiedenen, sich axialer Richtung des Mischers erstreckenden Führungsvorsprung ausgestattet ist, und dass jeder Kartuschentyp mit einer von den anderen Typen von Kartuschen im Querschnitt verschiedenen Öffnung zur Aufnahme eines Führungsvorsprungs eines Mischers ausgestattet ist. Durch die entsprechende Gestaltung der Querschnitte der Führungsvorsprünge und Öffnungen kann nach dem Schlüssel-Schloss-Prinzip definiert festgelegt werden, welcher Mischer mit welcher Kartusche verbindbar ist. Auf diese Weise sind Verwechslungen beziehungsweise die Verwendung eines an sich ungeeigneten Mischers mit einer Kartusche ausgeschlossen.
Der erfindungsgemäß vorgesehene Führungsvorsprung des Mischers mit der entsprechend gestalteten Öffnung der Kartusche erfüllt dabei neben der Funktion der beispielsweise aus der EP 0 600 138 B1 oder der EP 1 943 012 B1 bekannten Kodierung zur Ausrichtung des Mischers relativ zu der Kartusche zusätzlich die Funktion, dass nur bestimmte Typen von Mischern mit bestimmten Typen von Kartuschen verbindbar sind, obwohl die Einlassöffnungen oder -stutzen der Mischer und die Auslassöffnungen oder -stutzen der Kartuschen an sich eine Verbindung jedes Mischertyps mit jedem Kartuschentyp zuließen. Mit anderen Worten müssen in Bezug auf die Gestaltung des Interface zwischen Kartusche und Mischer lediglich die Querschnitte der Führungsvorsprünge und korrespondierenden Öffnungen modifiziert werden, so dass ein erheblich geringerer Herstellungsaufwand als bei der jeweils individuellen Gestaltung des Interface für jeden Mischer- und Kartuschentyp anfällt. Mit anderen Worten können die bei den kleineren 50 ml Kartuschen üblichen Querschnittsverhältnisse der Behälter von z.B. 1:1, 1:2, 1:4, 1:10, alle mit einem bis auf den Querschnitt der jeweiligen Führungsvorsprünge identischen Interface gestaltet werden.This object is achieved according to the invention with the features of claim 1. The invention is based on the idea that the size of the inlet openings or nozzle is the same for each type of mixer and the size of the outlet openings or nozzle is the same for each type of cartridge. Due to the identical design of the inlet openings or stubs and the outlet openings or stubs, the interface between cartridge and mixer can be designed largely identically, which means that only minimal modifications to the production tools are required. Furthermore, it is provided according to the invention that, for the assignment of at least one mixer type to at least one cartridge type, each mixer type is equipped with a guide projection extending in the axial direction of the mixer that is different in cross section from the other types of mixers, and that each cartridge type is equipped with one of the other types of cartridges in cross-section different opening for receiving a guide projection of a mixer is equipped. Through the appropriate Design of the cross-sections of the guide projections and openings can be defined according to the key and lock principle, which mixer can be connected to which cartridge. In this way, mix-ups or the use of an unsuitable mixer with a cartridge are excluded.
The inventive guide projection of the mixer with the correspondingly designed opening of the cartridge fulfills the function of, for example, from the EP 0 600 138 B1 or the EP 1 943 012 B1 The known coding for aligning the mixer relative to the cartridge also has the function that only certain types of mixers can be connected to certain types of cartridges, although the inlet openings or nozzles of the mixer and the outlet openings or nozzles of the cartridges are in themselves a connection of each mixer type allowed with each type of cartridge. In other words, with regard to the design of the interface between cartridge and mixer, only the cross-sections of the guide projections and corresponding openings have to be modified, so that a considerably lower manufacturing cost is incurred than with the individual design of the interface for each mixer and cartridge type. In other words, the cross-sectional ratios of the containers of, for example, 1: 1, 1: 2, 1: 4, 1:10, which are usual for the smaller 50 ml cartridges, can all be designed with an interface that is identical except for the cross section of the respective guide projections.

Die vorliegende Erfindung wird nachfolgend unter Bezugnahme auf das Ausführungsbeispiel beschrieben, wonach an dem Mischer der Führungsvorsprung vorgesehen ist, während an der Kartusche eine entsprechend gestaltete Öffnung zur Aufnahme des Führungsvorsprungs vorgesehen ist. Abweichend hiervon kann zusätzlich oder alternativ an der Kartusche ein Führungsvorsprung ausgebildet sein, der in eine entsprechend gestaltete Öffnung des Mischers eingreift. Die Einlassöffnungen oder -stutzen und Auslassöffnungen oder -stutzen werden dabei erfindungsgemäß nicht als Führungsvorsprung oder Öffnung angesehen. Vielmehr handelt es sich bei dem Führungsvorsprung um ein zusätzlich an dem Mischer beziehungsweise der Kartusche vorgesehenes Merkmal.
Zur Befestigung eines Mischers an einer Kartusche sind neben dem bloßen Aufstecken Überwurfbügel, Überwurfmuttern und Bajonettverschlüsse bekannt. Bei dem System nach der vorliegenden Erfindung wird dagegen zur Befestigung eines Mischers an einer Kartusche jeder Kartuschentyp mit einem Innengewinde und jeder Mischertyp mit einem Außengewinde versehen. Das Außengewinde jedes Mischertyps ist dabei in das jeweilige Innengewinde jedes Kartuschentyps einschraubbar. Mit anderen Worten ist neben dem Interface zur Verbindung von Einlassöffnungen oder -stutzen und Auslassöffnungen oder -stutzen auch das Interface zur Befestigung des Mischers an der Kartusche bei allen Mischern und Kartuschen des Systems im Wesentlichen baugleich gestaltet. Es wird dabei besonders bevorzugt, wenn an der Kartusche ein die Auslassöffnungen oder -stutzen umgebender Ring vorgesehen ist, der mit dem Innengewinde versehen ist, während der Mischer jeweils ein mit dem Außengewinde versehenes Mischergehäuse aufweist, welches frei drehbar zu einem Deckel oder Einsatz ist, welcher die Einlassöffnungen oder -stutzen des Mischers aufweist.
Vorzugsweise ist jeder Kartuschentyp mit genau einem der Typen von Mischern verbindbar und/oder jeder Mischertyp ist mit nur genau einem der Typen von Kartuschen verbindbar. Im erstgenannten Fall kann somit beispielsweise ein Mischer für zwei verschiedene Kartuschentypen verwendet werden. Im zweitgenannten Fall können beispielsweise zwei verschiedene Mischer auf den gleichen Kartuschentyp aufgesetzt werden. Erfindungsgemäß ist es auch möglich, die Mischer und Kartuschen so auszubilden, dass eine Verwendung eines Mischers auf einem anderen Kartuschentyp oder einer Kartusche mit einem anderen Mischertyp ausgeschlossen wird. Es ist somit auch möglich, genau einen Mischer genau einer Kartusche zuzuordnen.The present invention is described below with reference to the exemplary embodiment, according to which the guide projection is provided on the mixer, while a correspondingly shaped opening for receiving the guide projection is provided on the cartridge. In addition to this, or alternatively, a guide projection can be formed on the cartridge which engages in a correspondingly designed opening of the mixer. The inlet openings or stubs and outlet openings or stubs are not regarded according to the invention as a guide projection or opening. Rather, the guide projection is an additional feature provided on the mixer or the cartridge.
For fastening a mixer to a cartridge, in addition to simply plugging on, union brackets, union nuts and bayonet locks are known. In contrast, in the system according to the present invention, in order to attach a mixer to a cartridge, each type of cartridge is provided with an internal thread and each type of mixer is provided with an external thread. The external thread of each mixer type can be screwed into the respective internal thread of each cartridge type. In other words, in addition to the interface for connecting inlet openings or connectors and outlet openings or connectors, the interface for fastening the mixer to the cartridge is essentially structurally identical in all mixers and cartridges of the system. It is particularly preferred if a ring is provided on the cartridge which surrounds the outlet openings or connections and is provided with the internal thread, while the mixer has a mixer housing provided with the external thread, which can be freely rotated to form a cover or insert, which has the inlet openings or stubs of the mixer.
Each type of cartridge can preferably be connected to exactly one of the types of mixers and / or each type of mixer can be connected to only one of the types of cartridges. In the former case, for example, one mixer can be used for two different types of cartridges. In the second case, for example, two different mixers can be placed on the same type of cartridge. It is also according to the invention It is possible to design the mixers and cartridges in such a way that the use of a mixer on a different type of cartridge or a cartridge with a different type of mixer is excluded. It is therefore also possible to assign exactly one mixer to exactly one cartridge.

Die erfindungsgemäße Ausgestaltung der Einlassöffnungen oder -stutzen und der Auslassöffnungen oder -stutzen mit für alle Mischertypen und für alle Kartuschentypen baugleicher Ausführung bringt es mit sich, dass die Querschnitte der Einlassöffnungen oder -stutzen und der Auslassöffnungen oder -stutzen an den in dem System maximal zu erwartenden Volumendurchtritt angepasst sind. Insbesondere bei stark von 1:1 verschiedenen Verhältnissen der Volumina der Behälter der Kartusche kann dies als nachteilig empfunden werden, da der Fließwiderstand der Komponenten hierdurch stark voneinander abweicht. Insbesondere in diesem Fall wird es bevorzugt, wenn in wenigstens einer Auslassöffnung oder wenigstens einem Auslassstutzen der Kartusche ein Element vorgesehen ist, welches das Lumen verkleinert. Dies kann beispielsweise ein Einsatz oder ein einstückig mit der Kartusche ausgebildetes Element sein, welches dem Querschnitt der Auslassöffnung beziehungsweise des Auslassstutzens verringert und/oder als eine Drosselstelle wirkt. Dieses das Lumen verkleinerte Element ist vorzugsweise derart angeordnet, dass es außerhalb des eigentlichen Kontaktbereichs zwischen Mischer und Kartusche vorgesehen ist, so dass das Aufsetzen des Mischers auf die Kartusche hierdurch nicht beeinträchtigt wird.The design according to the invention of the inlet openings or nozzles and the outlet openings or nozzles with an identical design for all mixer types and for all cartridge types means that the cross-sections of the inlet openings or nozzle and the outlet openings or nozzle close to the maximum in the system expected volume penetration are adjusted. This can be perceived as disadvantageous in particular in the case of ratios of the volumes of the container of the cartridge which differ greatly from 1: 1, since the flow resistance of the components differs greatly as a result. In this case in particular, it is preferred if an element is provided in at least one outlet opening or at least one outlet nozzle of the cartridge which reduces the size of the lumen. This can, for example, be an insert or an element formed in one piece with the cartridge, which reduces the cross section of the outlet opening or the outlet connection and / or acts as a throttle point. This element, which has reduced the lumen, is preferably arranged in such a way that it is provided outside of the actual contact area between mixer and cartridge, so that this does not impair the placement of the mixer on the cartridge.

Die Führungsvorsprünge der Mischer und/oder die Öffnungen der Kartuschen können nach einer bevorzugten Ausführungsform der Erfindung im Querschnitt ringsegmentförmig oder vieleckig sein. Die Führungsvorsprünge verschiedener Typen von Mischern und/oder die Öffnungen verschiedener Typen von Kartuschen weisen im Querschnitt unterschiedlich ausgebildete und/oder unterschiedlich positionierte Vorsprünge und/oderAccording to a preferred embodiment of the invention, the guide projections of the mixers and / or the openings of the cartridges can be ring segment-shaped or polygonal in cross section. The guide projections of different types of mixers and / or the openings of different types of cartridges have projections and / or differently designed and / or differently positioned in cross section

Ausnehmungen auf. Abweichend von den zuvor genannten Beispielen sind auch andere Ausgestaltungen der Querschnitte der Führungsvorsprünge beziehungsweise der Öffnungen möglich, sofern hierdurch eine Zuordnung eines bestimmten Mischers zu einer bestimmten Kartusche ermöglicht wird.Recesses. In a departure from the examples mentioned above, other configurations of the cross-sections of the guide projections or the openings are also possible, provided that this enables a specific mixer to be assigned to a specific cartridge.

Das erfindungsgemäße System kann sogenannte dynamische Mischer, d.h. Mischer mit einem rotatorisch antreibbaren Mischelement, oder statische Mischer mit einem nicht antreibbaren Mischelement aufweisen. Grundsätzlich ist es auch möglich, dass das erfindungsgemäße System sowohl dynamische Mischer als auch statische Mischer aufweist. Neben der Unterscheidung zwischen dynamischen und statischen Mischern können sich zwei Typen von Mischern des Systems auch darin unterscheiden, dass der in jedem Mischer vorgesehene Mischraum bei unterschiedlichen Typen von Mischern verschiedene Durchmesser aufweist. Auf diese Weise kann beispielsweise unterschiedlichen Viskositäten der zu verarbeiteten Materialien Rechnung getragen werden.
Die Mischer des erfindungsgemäßen Systems sind vorzugsweise derart gestaltet, dass ihre Führungsvorsprünge beabstandet von den Einlassöffnungen oder -stutzen und beabstandet von dem Außengewinde angeordnet sind. Weder das Gewinde als Befestigungsmittel noch die Einlassöffnungen oder -stutzen zum Anschluss des Mischers an die Kartusche dienen somit als Mittel zur Zuordnung eines Mischers zu einem Kartuschentyp. Dabei st der jeweilige Führungsvorsprung hierzu länger als die Stutzen und ist vor dem Gewindeeingriff aktiv.
Unabhängig von den zuvor beschriebenen Merkmalen ist es bei der Verbindung zwischen einem Mischer und einer Kartusche mittels einer Gewindeverbindung vorteilhaft, wenn an den Mischern und den Kartuschen jeweils Rastelemente vorgesehen sind, die miteinander lösbar in Eingriff treten, wenn das Gewinde des Mischers vollständig in das Gewinde einer Kartusche eingeschraubt ist. Auf diese Weise wird ein unbeabsichtigtes Ablösen des Mischers von der Kartusche vermieden. Gleichzeitig erhält ein Benutzer eine taktile und/oder akustische Rückmeldung, wenn der Mischer ordnungsgemäß an der Kartusche befestigt ist.The system according to the invention can have so-called dynamic mixers, ie mixers with a mixing element that can be driven in rotation, or static mixers with a mixing element that cannot be driven. In principle, it is also possible for the system according to the invention to have both dynamic mixers and static mixers. In addition to the distinction between dynamic and static mixers, two types of mixers in the system can also differ in that the mixing space provided in each mixer has different diameters for different types of mixers. In this way, for example, different viscosities of the materials to be processed can be taken into account.
The mixers of the system according to the invention are preferably designed in such a way that their guide projections are arranged at a distance from the inlet openings or connecting pieces and at a distance from the external thread. Neither the thread as a fastening means nor the inlet openings or inlet connections for connecting the mixer to the cartridge thus serve as a means for assigning a mixer to a cartridge type. For this purpose, the respective guide projection is longer than the socket and is active before the thread engagement.
Regardless of the features described above, in the connection between a mixer and a cartridge by means of a threaded connection, it is advantageous if latching elements are provided on the mixers and the cartridges that releasably engage with one another when the thread of the mixer is fully screwed into the thread of a cartridge. In this way an unintentional detachment of the mixer from the cartridge is avoided. At the same time, a user receives tactile and / or acoustic feedback when the mixer is properly attached to the cartridge.

Wenn eine Trennwand zwischen den Einlassöffnungen oder -stutzen des Mischers vorgesehen ist, kann diese zusätzlich verhindern, dass ein Kontakt des Mischers zu der Kartusche erfolgt, falls der Mischer falsch (z.B. verkippt) aufgesetzt ist. Dies vermeidet eine Materialverschleppung und Kreuz-Kontamination.If a partition is provided between the mixer inlet openings or nozzles, this can also prevent the mixer from coming into contact with the cartridge if the mixer is attached incorrectly (e.g. tilted). This avoids material carryover and cross-contamination.

Die Trennwand und der Führungsvorsprung des Mischers stehen in axialer Richtung über die Einlassöffnungen oder -stutzen hervor, so dass diese beiden Elemente zusätzlich verhindern, dass sich die Einlassöffnungen oder -stutzen des Mischers mit den Auslassöffnungen oder -stutzen der Kartusche in einer nicht ordnungsgemäßen Ausrichtung treffen. Der Führungsvorsprung ist dabei wie oben beschrieben mit einer (mechanischen) Codierung versehen, d.h. mit einer Kontur, die so an die Kontur einer Öffnung der Kartusche angepasst ist, dass der Mischer nur in einer bestimmten Orientierung mit der Kartusche verbindbar ist.The partition and the guide projection of the mixer protrude in the axial direction over the inlet openings or nozzles, so that these two elements also prevent the inlet openings or nozzles of the mixer from meeting the outlet openings or nozzles of the cartridge in an incorrect alignment . The guide projection is provided with a (mechanical) coding as described above, i.e. with a contour which is adapted to the contour of an opening in the cartridge in such a way that the mixer can only be connected to the cartridge in a certain orientation.

Vorzugsweise sind die Auslassöffnungen oder -stutzen der Kartuschen mit einem abnehmbaren Verschlussstopfen verschließbar. Der Verschlussstopfen kann im Auslieferungszustand der Kartusche mit dieser verbunden sein und wird vor der erstmaligen Benutzung der Kartusche abgenommen.The outlet openings or nozzle of the cartridges can preferably be closed with a removable stopper. The sealing plug can be connected to the cartridge in the delivery state and is removed before the cartridge is used for the first time.

Da das Interface zur Anbindung eines Mischers bei gleichartigen Kartuschen im Wesentlichen identisch gestaltet ist, können die Auslassöffnungen oder -stutzen von gleichartigen Kartuschen jeweils mit identischen (baugleichen) Verschlussstopfen verschließbar sein. Hierdurch wird auch hinsichtlich der Verschlussstopfen eine Vereinheitlichung und somit eine Kostenersparnis erreicht.
Nach einer bevorzugten Ausführungsform weist der Verschlussstopfen zwei in die Auslassöffnungen oder -stutzen der Kartuschen einsteckbare Stutzen sowie wenigstens ein an den Kartuschen einrastbares Rastelement auf, welches mit den Stutzen über ein elastisch verwindbares Torsionselement derart verbunden ist, dass die Stutzen relativ zu dem wenigstens einen Rastelement elastisch verdrehbar sind. Das Rastelement ist dabei vorzugsweise mit dem Innengewinde der Kartuschen verbindbar, und insbesondere als ein Haken ausgebildet, der in Umfangsrichtung das Gewindeende hintergreift. Das Torsionselement ermöglicht es, dass der mit dem wenigstens einen Rastelement versehene Teil des Verschlussstopfens relativ zu dem mit den Stutzen versehenen Teil des Verschlussstopfens verdreht wird, um die Rastverbindung zu lösen.
Nach einer besonders bevorzugten Ausführungsform stützt sich der Rasthaken selbst und/oder wenigstens ein in Umfangsrichtung angrenzend an den Rasthaken vorgesehener Steg auf einem Gewindegang der Kartusche so ab, dass der Verschlussstopfen bei einer Drehung des wenigstens einen Rastelements von der Kartusche abgehoben wird.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen und unter Bezugnahme auf die Zeichnung näher erläutert.Since the interface for connecting a mixer is essentially identical for cartridges of the same type, the outlet openings or nozzles of cartridges of the same type can each be closed with identical (structurally identical) sealing plugs. This is also in terms of Sealing plug achieved a standardization and thus a cost saving.
According to a preferred embodiment, the sealing plug has two nozzles that can be inserted into the outlet openings or nozzles of the cartridges and at least one latching element that can be snapped into place on the cartridges, which is connected to the nozzle via an elastically twistable torsion element in such a way that the nozzle is relative to the at least one latching element are elastically rotatable. The latching element is preferably connectable to the internal thread of the cartridge, and in particular is designed as a hook which engages behind the thread end in the circumferential direction. The torsion element makes it possible that the part of the closure plug provided with the at least one locking element is rotated relative to the part of the closure plug provided with the nozzle in order to release the locking connection.
According to a particularly preferred embodiment, the locking hook itself and / or at least one web adjacent to the locking hook in the circumferential direction is supported on a thread of the cartridge in such a way that the sealing plug is lifted from the cartridge when the at least one locking element is rotated.
The invention is explained in more detail below using exemplary embodiments and with reference to the drawing.

Es zeigen schematisch:

Figur 1a
in Seitenansicht eine Kartusche des erfindungsgemäßen Systems,
Figur 1b
in Seitenansicht eine weitere Kartusche des erfindungsgemäßen Systems,
Figur 1c
die Kontur einer Öffnung für eine weitere Kartusche des erfindungsgemäßen Systems,
Figur 1d
die Kontor einer weiteren Öffnung einer Kartusche des erfindungsgemäßen Systems,
Figur 2a
ein mit einer Kartusche nach Figur 1a verbindbarer Mischer,
Figur 2b
ein mit einer Kartusche nach Figur 1b verbindbarer Mischer,
Figur 2c
ein mit der Kartusche nach Figur 1a oder der Kartusche nach Figur 1b verbindbarer Mischer,
Figur 3a
in Seitenansicht den Mischer nach Figur 2b mit der Kartusche nach Figur 1b,
Figur 3b
ein Ausschnitt des mit der Kartusche nach Figur 1b verbundenen Mischers nach Figur 2b,
Figur 4a
einen Mischer und eine Kartusche eines weiteren erfindungsgemäßen Systems,
Figur 4b
einen anderen Mischer und eine andere Kartusche des Systems nach Figur 4a,
Figur 5
in teilweise aufgebrochener Seitenansicht eine Kartusche mit einem Verschlussstopfen,
Figur 6
in Perspektivansicht den Verschlussstopfen nach Figur 5,
Figur 7
in Perspektivansicht ein einstückiges Verschlusselement,
Figur 8
in Perspektivansicht das Verschlusselement nach Figur 7,
Figur 9
in Schnittansicht einen Ausbringkolben mit Drehverschluss,
Figur 10
in Perspektivansicht den Drehverschluss nach Figur 9,
Figur 11
in Perspektivansicht den Ausbringkolben nach Figur 9, und
Figur 12
in Schnittansicht ein erfindungsgemäßes Kartuschensystem.
They show schematically:
Figure 1a
a side view of a cartridge of the system according to the invention,
Figure 1b
a side view of another cartridge of the system according to the invention,
Figure 1c
the contour of an opening for a further cartridge of the system according to the invention,
Figure 1d
the office of a further opening of a cartridge of the system according to the invention,
Figure 2a
one with a cartridge after Figure 1a connectable mixer,
Figure 2b
one with a cartridge after Figure 1b connectable mixer,
Figure 2c
one with the cartridge after Figure 1a or the cartridge Figure 1b connectable mixer,
Figure 3a
the mixer in a side view Figure 2b with the cartridge Figure 1b ,
Figure 3b
a section of the with the cartridge after Figure 1b connected mixer after Figure 2b ,
Figure 4a
a mixer and a cartridge of a further system according to the invention,
Figure 4b
another mixer and cartridge in the system Figure 4a ,
Figure 5
a partially broken side view of a cartridge with a sealing plug,
Figure 6
in perspective view the sealing plug after Figure 5 ,
Figure 7
a one-piece closure element in perspective view,
Figure 8
in perspective view the closure element according to Figure 7 ,
Figure 9
a sectional view of a dispensing piston with screw cap,
Figure 10
in perspective view according to the twist lock Figure 9 ,
Figure 11
in perspective view the dispensing piston after Figure 9 , and
Figure 12
a sectional view of a cartridge system according to the invention.

In den Figuren 1a und 1b ist jeweils eine Doppelkartusche 1a beziehungsweise 1b dargestellt, die aus zwei miteinander verbundenen Behältern 2, 3 und einem Anschlussbereich 4 bestehen. Ein Vergleich der Figuren 1a und 1b zeigt, dass die Behälter 2, 3 verschiedene Querschnitte und dabei bei gleicher Länge unterschiedliche Volumina aufweisen können. So beträgt das Verhältnis der Volumina der beiden Behälter 2 und 3 bei der Ausführungsform nach Figur 1a beispielsweise 10:1 während das Verhältnis der Volumina der Behälter in Figur 1b beispielsweise 1:1 beträgt, wobei Gesamtvolumen der Kartuschen 1a bzw. 1b identisch ist (z.B. 50ml). Die Kartuschen 1a und 1b werden somit als zwei verschiedene Typen gleichartiger Kartuschen erachtet.In the Figures 1a and 1b each a double cartridge 1a and 1b is shown, which consist of two interconnected containers 2, 3 and a connection area 4. A comparison of the Figures 1a and 1b shows that the containers 2, 3 can have different cross sections and different volumes for the same length. The ratio of the volumes of the two containers 2 and 3 in the embodiment according to FIG Figure 1a for example 10: 1 while the ratio of the volumes of the containers in Figure 1b for example 1: 1, the total volume of the cartridges 1a and 1b being identical (eg 50ml). The cartridges 1a and 1b are thus considered to be two different types of similar cartridges.

Der Anschlussbereich 4 der Kartuschen weist jeweils einen Auslassstutzen 5 beziehungsweise 6 für jeden Behälter 2 beziehungsweise 3 auf. Die Auslassstutzen 5, 6 können aus einer im dargestellten Ausführungsbeispiel kreisförmigen Platte 7 hervorstehen und sind zusätzlich von einem Ring 8 umgeben, der mit einem Innengewinde 9 versehen ist. Weiter ist in der Platte 7 eine Durchgangsöffnung ausgebildet, wobei die Öffnung 10a in Figur 1a einen geringfügig abweichenden Querschnitt von dem der Öffnung 10b in Figur 1b aufweist. In der dargestellten Ausführungsform sind beide Öffnungen 10a, 10b jeweils etwa ringsegmentartig gestaltet und weisen an unterschiedlichen Positionen einen in die Öffnung hineinragenden Vorsprung auf. Weitere Beispiele für den Querschnitt derartiger Öffnungen sind in den Figuren 1c und 1d dargestellt, wobei diese sich durch die Position des Vorsprungs innerhalb der ringsegmentartigen Öffnung unterscheiden.The connection area 4 of the cartridges has an outlet connection 5 or 6 for each container 2 or 3. The Outlet nozzles 5, 6 can protrude from a plate 7, which is circular in the embodiment shown, and are additionally surrounded by a ring 8 which is provided with an internal thread 9. A through opening is also formed in the plate 7, the opening 10a in FIG Figure 1a a slightly different cross-section from that of the opening 10b in FIG Figure 1b having. In the embodiment shown, both openings 10a, 10b are each designed approximately like a ring segment and have a projection protruding into the opening at different positions. Further examples of the cross section of such openings are shown in FIGS Figures 1c and 1d shown, these differing by the position of the projection within the ring segment-like opening.

In den Figuren 2a bis 2c sind jeweils verschiedene Typen gleichartiger statischer Mischer 11a, 11b, 11c dargestellt, die ein Gehäuse und einen relativ hierzu drehbaren Einsatz aufweisen. Die Gehäuse, die jeweils einen Mischraum definieren, können mit unterschiedlichen Querschnitten ausgestaltet sein. Auf der Außenseite der Gehäuse ist jeweils ein Außengewinde 12 vorgesehen, welches in das Innengewinde 9 der Kartuschen einschraubbar ist. Der Einsatz der Mischer weist jeweils Einlassstutzen auf, welche in die Auslassstutzen 5, 6 der Kartuschen eingesteckt werden können. Wie auch die Auslassstutzen 5, 6 der Kartuschen unabhängig von dem Volumenverhältnis der Behälter den gleichen Querschnitt aufweisen, so weisen auch die Einlassstutzen der Mischer 11a, 11b und 11c jeweils den gleichen Querschnitt auf.In the Figures 2a to 2c Different types of static mixers 11a, 11b, 11c of the same type are shown in each case, which have a housing and an insert which is rotatable relative thereto. The housings, which each define a mixing space, can be designed with different cross-sections. On the outside of the housing there is an external thread 12 which can be screwed into the internal thread 9 of the cartridge. The insert of the mixer has inlet nozzles which can be inserted into the outlet nozzles 5, 6 of the cartridges. Just as the outlet nozzles 5, 6 of the cartridges also have the same cross section regardless of the volume ratio of the containers, the inlet nozzles of the mixers 11a, 11b and 11c each also have the same cross section.

Zusätzlich ist an dem Einsatz ein Führungsvorsprung 13a, 13b, 13c vorgesehen, der sich parallel zu den Einlassstutzen in Richtung zu der Kartusche erstreckt. Der Führungsvorsprung hat dabei einen Querschnitt, der an den Querschnitt der Öffnungen im Anschlussbereich 4 der Kartuschen angepasst ist. So ist der Querschnitt des Führungsvorsprungs 13a so gewählt, dass dieser in die Öffnung 10a der Kartusche 1a einsteckbar ist, nicht jedoch in die Öffnung 10b der Kartusche 1b. In gleicher Weise ist der Führungsvorsprung 13b des Mischers 11b so gestaltet, dass dieser in die Öffnung 10b der Kartusche 1b einsetzbar ist, nicht jedoch in die Öffnung 10a der Kartusche 1a. Der Führungsvorsprung 13c des Mischers 11c ist dagegen so gestaltet, dass er sowohl in die Öffnung 10a der Kartusche 1a als auch in die Öffnung 10b der Kartusche 1b einsteckbar ist. Die Führungsvorsprünge 13a und 13b sind somit jeweils mit einem individuellen Schlüssel vergleichbar und der Führungsvorsprung 13c mit einem Generalschlüsse.In addition, a guide projection 13a, 13b, 13c is provided on the insert, which extends parallel to the inlet connection in the direction of the cartridge. The guide projection has a cross section which is adapted to the cross section of the openings in the connection area 4 of the cartridges. The cross-section of the guide projection 13a is selected so that it can be inserted into the opening 10a of the cartridge 1a, but not into the opening 10b of the Cartridge 1b. In the same way, the guide projection 13b of the mixer 11b is designed so that it can be inserted into the opening 10b of the cartridge 1b, but not into the opening 10a of the cartridge 1a. The guide projection 13c of the mixer 11c, on the other hand, is designed such that it can be inserted both into the opening 10a of the cartridge 1a and into the opening 10b of the cartridge 1b. The guide projections 13a and 13b are thus each comparable with an individual key and the guide projection 13c with a general lock.

Ein weiteres Detail der Mischer beziehungsweise Kartuschen ist aus den Figuren 3a und 3b ersichtlich. So sind an dem Ring 8 der Kartuschen mehrere Rastnocken 14 auf der dem Mischer zugewandten Stirnseite vorgesehen, während an dem Mischer jeweils an dem Gehäuse Rastgegennocken 15 ausgebildet sind. Die Rastnocken 14 und Rastgegennocken 15 sind dabei so angeordnet, dass eine Rastgegennocke 15 über eine Rastnocke 14 schnappt, wenn der Mischer mit seinem Außengewinde 12 vollständig in das Innengewinde 9 einer Kartusche eingeschraubt ist.Another detail of the mixer or cartridge is from the Figures 3a and 3b evident. Thus, a plurality of locking cams 14 are provided on the ring 8 of the cartridges on the end face facing the mixer, while locking counter cams 15 are formed on the respective housing on the mixer. The locking cams 14 and locking counter cams 15 are arranged in such a way that a locking counter cam 15 snaps over a locking cam 14 when the mixer with its external thread 12 is screwed completely into the internal thread 9 of a cartridge.

In Figur 4a ist ein dynamischer Mischer 20a mit einer hierzu geeigneten Kartusche 21a dargestellt. Der Aufbau der Kartusche 21a entspricht dabei im Wesentlichen dem der zuvor beschriebenen Kartuschen 1a und 1b, wobei der Anschlussbereich 4 der Kartusche 21a so ausgebildet ist, dass statt der über die Platte 7 vorstehenden Auslassstutzen 5, 6 lediglich Auslassöffnungen 5, 6 vorgesehen sind. Darüber hinaus ist zwischen den Auslassöffnungen 5, 6 eine Durchgangsöffnung vorgesehen, durch welche eine Antriebswelle zum rotatorischen Antrieb des Mischelements des Mischers 20a durchgeführt werden kann. Weiter sind statt der einzelnen Öffnung in der Platte 7 in Figur 4a zwei jeweils ringsegmentartige Öffnungen 22 ausgebildet.In Figure 4a a dynamic mixer 20a with a suitable cartridge 21a is shown. The structure of the cartridge 21a essentially corresponds to that of the cartridges 1a and 1b described above, the connection area 4 of the cartridge 21a being designed in such a way that instead of the outlet nozzles 5, 6 protruding over the plate 7, only outlet openings 5, 6 are provided. In addition, a through opening is provided between the outlet openings 5, 6, through which a drive shaft for the rotational drive of the mixing element of the mixer 20a can be passed. Further instead of the single opening in the plate 7 in Figure 4a two ring segment-like openings 22 each formed.

Entsprechend ist der Mischer 20a mit zwei ebenfalls im Querschnitt ringsegmentförmigen Führungsvorsprüngen 23 versehen, welche sich parallel zu dem Einlassstutzen 24 beziehungsweise 25 erstrecken. Die Befestigung des Mischers 20a an der Kartusche 21a erfolgt wie zuvor beschrieben, indem zunächst die Führungsvorsprünge 23 in die entsprechenden Öffnungen 22 der Kartusche 21a eingesteckt werden. Durch Einschrauben des Außengewindes 12 des Mischergehäuses in das Innengewinde 9 des Rings 8 der Kartusche 21a wird der Mischer 20a mit der Kartusche 21a verbunden, wobei auch die Einlassstutzen 24, 25 des Mischers 20a in die Auslassöffnungen 5 beziehungsweise 6 der Kartusche 21a eingreifen.Correspondingly, the mixer 20a is provided with two guide projections 23 which are likewise ring segment-shaped in cross section and which extend parallel to the inlet connection 24 and 25, respectively. The mixer 20a is fastened to the cartridge 21a as described above, in that the guide projections 23 are first inserted into the corresponding openings 22 of the cartridge 21a. By screwing the external thread 12 of the mixer housing into the internal thread 9 of the ring 8 of the cartridge 21a, the mixer 20a is connected to the cartridge 21a, the inlet nozzles 24, 25 of the mixer 20a also engaging the outlet openings 5 and 6 of the cartridge 21a.

Bei der Ausführungsform nach Figur 4b ist statt der beiden Führungsvorsprünge 23 lediglich ein einzelner im Querschnitt ringsegmentförmiger Führungsvorsprung 23 an dem Mischer 20b vorgesehen. Entsprechend weist auch die Kartusche 21b lediglich eine im Querschnitt ringsegmentförmige Öffnung 22 auf. Der Mischer 20b ist damit lediglich mit der Kartusche 21b verbindbar, nicht jedoch mit der Kartusche 21a. In gleicher Weise ist der Mischer 20a nur mit der Kartusche 21a verbindbar, nicht jedoch mit der Kartusche 21b.In the embodiment according to Figure 4b Instead of the two guide projections 23, only a single guide projection 23 with a ring segment-shaped cross section is provided on the mixer 20b. Correspondingly, the cartridge 21b also has only one opening 22 which is ring segment-shaped in cross section. The mixer 20b can therefore only be connected to the cartridge 21b, but not to the cartridge 21a. In the same way, the mixer 20a can only be connected to the cartridge 21a, but not to the cartridge 21b.

Figuren 5 und 6 zeigen einen Verschlussstopfen 26 mit zwei in die Auslassöffnungen oder -stutzen 5, 6 einer Kartuschen einsteckbaren Stutzen 27 sowie wenigstens ein an den Kartuschen einrastbares Rastelement 28. Das Rastelement 28 ist als ein Rasthaken ausgebildet, der mit den Stutzen 27 über ein elastisch verwindbares Torsionselement 29 derart verbunden ist, dass die Stutzen 27 relativ zu dem Rastelement 28 elastisch verdrehbar sind. Figur 5 zeigt, dass das Rastelement 28 mit dem Innengewinde 9 der Kartusche verbindbar ist, indem der Haken in Umfangsrichtung das Gewindeende hintergreift. Das Torsionselement 29 ermöglicht es, dass der mit dem wenigstens einen Rastelement versehene ringartige Teil des Verschlussstopfens relativ zu dem mit den Stutzen 27 versehenen Teil des Verschlussstopfens verdreht wird, um die Rastverbindung zu lösen.
In Figur 5 ist weiter zu erkennen, dass sich der Rasthaken 28 und zwei Stege 30, die in Umfangsrichtung angrenzend an den Rasthaken vorgesehen sind, sich auf einem Gewindegang der Kartusche abstützen. Dies bewirkt, dass der Verschlussstopfen 26 bei einer Drehung des ringförmigen Teils mit dem Rastelement 28 von der Kartusche abgehoben wird, so dass die Stutzen 27 aus den Auslassöffnungen oder -stutzen 5, 6 der Kartusche gezogen werden. Figures 5 and 6 show a sealing plug 26 with two nozzles 27 that can be inserted into the outlet openings or nozzles 5, 6 of a cartridge, as well as at least one latching element 28 that can be latched onto the cartridges. The latching element 28 is designed as a latching hook that connects to the nozzle 27 via an elastically twistable torsion element 29 is connected in such a way that the connecting pieces 27 are elastically rotatable relative to the locking element 28. Figure 5 shows that the locking element 28 can be connected to the internal thread 9 of the cartridge in that the hook engages behind the thread end in the circumferential direction. The torsion element 29 makes it possible that the ring-like part provided with the at least one locking element of the Closure plug is rotated relative to the part of the closure plug provided with the nozzle 27 in order to release the latching connection.
In Figure 5 it can also be seen that the locking hook 28 and two webs 30, which are provided adjacent to the locking hook in the circumferential direction, are supported on a thread of the cartridge. This has the effect that the sealing plug 26 is lifted off the cartridge when the annular part is rotated with the latching element 28, so that the connecting pieces 27 are pulled out of the outlet openings or connecting pieces 5, 6 of the cartridge.

Unabhängig von den zuvor beschriebenen Merkmalen des Mischers und/oder der Kartusche zeigen die Figuren 7 und 8 ein einstückiges Verschlusselement, welches statt des Mischers auf eine Kartusche aufgesetzt werden kann. Zum Verschließen der Kartusche sind zwei Stopfen 27 oder Stutzen vorgesehen, die abdichtend in die Auslassstutzen 5 bzw. 6 eingesteckt werden können. Die Stopfen 27 sind jeweils über einen Steg 29, der als eine Torsionsfeder wirkt, mit einer Hülse verbunden, die in den Kragen des Auslassendes der Kartusche eingesetzt werden kann. Ein erweiterter Rand der Hülse, der mit einer Rändelung versehen ist, liegt auf der Stirnseite des Kragens auf, wenn das Verschlusselement abdichtend auf die Kartusche aufgesetzt ist.
Das Verschlusselement kann in dem Kragen (Ring 8) mittels Rasthaken 28 gesichert werden, die die Gewindesegmente des Innengewindes 9 hintergreifen und damit das Verschlusselement auf der Kartusche verrasten. Zum Lösen des Verschlusselements kann die Hülse mit der Rändelung geringfügig verdreht werden, wobei sich der Steg 29 verwindet, da die Stopfen 27 zunächst weiter in den Auslassstutzen 5 bzw. 6 stecken. Diese Verwindung des als Torsionselement wirkenden Stegs 27 ermöglicht es, dass die Rasthaken 27 außer Eingriff mit den Gewindesegmenten des Innengewindes 9 gebracht werden, so dass das Verschlusselement von der Kartusche abgenommen werden kann.Regardless of the features of the mixer and / or the cartridge described above, they show Figures 7 and 8 a one-piece closure element that can be placed on a cartridge instead of the mixer. To close the cartridge, two plugs 27 or nozzles are provided, which can be plugged into the outlet nozzles 5 or 6 in a sealing manner. The plugs 27 are each connected via a web 29, which acts as a torsion spring, to a sleeve which can be inserted into the collar of the outlet end of the cartridge. A widened edge of the sleeve, which is provided with knurling, rests on the end face of the collar when the closure element is placed onto the cartridge in a sealing manner.
The closure element can be secured in the collar (ring 8) by means of locking hooks 28, which engage behind the thread segments of the internal thread 9 and thus lock the closure element on the cartridge. To loosen the closure element, the sleeve with the knurling can be slightly rotated, the web 29 twisting, since the plugs 27 initially stick further into the outlet connection 5 or 6. This twisting of the web 27 acting as a torsion element makes it possible for the latching hooks 27 to be brought out of engagement with the thread segments of the internal thread 9 so that the closure element can be removed from the cartridge.

Der Verschlussstopfen weist eine Positionierungszunge (bzw. einen Führungsvorsprung 23) auf, die so gestaltet sein kann, dass sie nach Durchtreten durch eine korrespondierende Öffnung in der Kartusche nach außen für den Anwender sichtbar wird. Dies hat den Vorteil einer optischen Sichtkontrolle, ob der Verschlussstopfen und/oder die Positionierungszunge sauber eingeführt ist. Das Torsionselement des Verschlussstopfens kann wie in Figur 7 gezeigt eine radiale S-Form aufweisen, um auch bei kleinen Verschlussstopfen-Durchmessern einen entsprechenden Drehweg zu sichern. Auch der in den Figuren 7 und 8 gezeigte Verschlussstopfen ist einstückig, was gegenüber bekannten mehrteiligen Verschlüssen den Vorteil einer einfacheren Herstellung des Verschlussstopfens bietet.The sealing plug has a positioning tongue (or a guide projection 23) which can be designed in such a way that it is visible to the outside for the user after passing through a corresponding opening in the cartridge. This has the advantage of an optical visual inspection as to whether the sealing plug and / or the positioning tongue has been properly inserted. The torsion element of the sealing plug can as in Figure 7 shown have a radial S-shape in order to ensure a corresponding rotational path even with small sealing plug diameters. Even the one in the Figures 7 and 8 The sealing plug shown is in one piece, which, compared with known multi-part closures, offers the advantage of simpler manufacture of the sealing plug.

In den Figuren 9 bis 11 ist ein Ausbringkolben mit Dehverschluss dargestellt, der in einem erfindungsgemäßen Kartuschensystem zum Ausbringen der Komponenten aus den Behältern genutzt werden kann. Der Kolben ist hierbei mit einer Entlüftung versehen, die es erlaubt, dass Luft aus dem jeweiligen Behälter austritt, wenn dieser mit der Komponente befüllt ist und der Ausbringkolben eingesetzt wird. Da einige Stoffe dazu neigen, mit der nach dem Befüllen der Kartusche und dem Einsetzen des Kolbens in der Kartusche verbleibenden Restluft zu reagieren, ist man bestrebt, die Restluft möglichst vollständig aus dem Behälter entweichen zu lassen. Etwaige in dem Behälter verbleibende Restluft zwischen dem Kolben und dem in der Kartusche befindlichen Stoff wird auch deshalb als nachteilig empfunden, weil die Restluft ein kompressibles Polster bildet, das die Genauigkeit der Dosierung beim Aufbringen des Stoffes aus der Kartusche erschwert.In the Figures 9 to 11 shows a dispensing piston with a zipper that can be used in a cartridge system according to the invention for dispensing the components from the containers. The piston is provided with a vent that allows air to exit the respective container when it is filled with the component and the dispensing piston is used. Since some substances tend to react with the residual air remaining in the cartridge after filling the cartridge and inserting the piston, efforts are made to allow the residual air to escape from the container as completely as possible. Any residual air remaining in the container between the piston and the substance in the cartridge is also felt to be disadvantageous because the residual air forms a compressible cushion, which makes the metering more difficult when applying the substance from the cartridge.

Der in den Figuren 9 bis 11 gezeigte Kolben 100 weist einen Grundkörper 101 auf, der einen mit Dichtmitteln versehene Seitenwand und eine stirnseitige Wand aufweist, in welcher eine Entlüftungsöffnung 102 vorgesehen ist. Diese Entlüftungsöffnung 102 erstreckt sich durch den gesamten Grundkörper hindurch, so dass ein Luftaustausch zwischen der Seite der stirnseitigen Wand (in Förderrichtung gelegen) und der Rückseite des Kolbens 100 möglich ist. In der Entlüftungsöffnung 102 ist dabei ein Verschlusselement 103 drehbar gelagert, wobei durch eine relative Drehung des Verschlusselements 103 in der Entlüftungsöffnung 102 ein Entlüftungskanal geöffnet beziehungsweise geschlossen werden kann. Mit anderen Worten ist es möglich, mit einer Drehung des Verschlusselements 103 die Strömungsverbindung zwischen der in Förderrichtung gelegenen Seite des Kolbens 100 und der rückwärtigen Seite des Kolbens herzustellen beziehungsweise zu unterbinden.The one in the Figures 9 to 11 The piston 100 shown has a base body 101 which has a side wall provided with sealing means and an end wall in which a vent opening 102 is provided. This vent opening 102 extends through the entire base body, so that an exchange of air between the side of the front wall (located in the conveying direction) and the rear of the piston 100 is possible. A closure element 103 is rotatably mounted in the vent opening 102, it being possible to open or close a vent channel by a relative rotation of the closure element 103 in the vent opening 102. In other words, it is possible, with a rotation of the closure element 103, to establish or prevent the flow connection between the side of the piston 100 located in the conveying direction and the rear side of the piston.

Hierzu ist auf der Innenfläche der Entlüftungsöffnung 102 ein umlaufender Vorsprung 104 ausgebildet, der in eine entsprechende Nut 105 in dem Verschlusselement 103 eingreift, um diese miteinander zu verrasten. Sowohl der Vorsprung 104 als auch die Nut 105 sind sich jeweils mit Durchbrechungen versehen, die in Überdeckung gebracht werden können um einen Entlüftungskanal freizugeben, bzw. außer Überdeckung gebracht werden können, um den Entlüftungskanal zu verschließen. Die Durchbrechung verläuft dabei durch die hierzu senkrechte Nut 105 hindurch, die geringfügig tiefer als die Durchbrechung ausgebildet sein kann, so dass der Vorsprung 104 die Durchbrechungen sicher verschließen kann.For this purpose, a circumferential projection 104 is formed on the inner surface of the vent opening 102, which protrusion engages in a corresponding groove 105 in the closure element 103 in order to lock them together. Both the projection 104 and the groove 105 are each provided with perforations which can be brought into overlap in order to release a ventilation channel, or can be brought out of overlap in order to close the ventilation channel. The opening runs through the groove 105 which is perpendicular to this and which can be formed slightly deeper than the opening so that the projection 104 can reliably close the openings.

Zur Optimierung der Dichtigkeit der Kolben mit Drehverschluss (Austritt von Abformmasse aus dem geschlossenen Entlüftungsventil unter Austragsbedingungen) sind die sternförmigen Entlüftungsschlitze 106 konisch zulaufend gestaltet, so dass die Gesamtquerschnittsfläche auf ein Bruchteil, z.B. auf 1/100, der ursprünglichen Querschnittsfläche reduziert ist. Auf diese Weise kann eingeschlossenen Luft beim Verschließen der Kartusche weiterhin ungehindert ins Freie treten, der Zutritt von Abformmasse zum Entlüftungsventil hin wird jedoch stark erschwert.In order to optimize the tightness of the pistons with a screw cap (impression material escapes from the closed vent valve under discharge conditions), the star-shaped vent slots 106 are tapered so that the total cross-sectional area is reduced to a fraction, e.g. 1/100, of the original cross-sectional area. In this way trapped air can continue to escape unhindered when the cartridge is closed, but the access of impression material to the vent valve is made very difficult.

Figur 12 zeigt eine Schnittansicht eines Mischers und einer Kartusche des erfindungsgemäßen Systems, wobei der Fall dargestellt ist, dass ein Benutzer versucht, den Mischer falsch (verkippt) auf die Kartusche aufzusetzen. Ein wichtiges Merkmal des erfindungsgemäßen Systems ist die Vermeidung einer unerwünschten Verschleppung von Katalysatorkomponente und Basekomponente und zur jeweils anderen Pastenkomponente und zu deren Kontamination führen könnte. Dies könnte auftreten durch zufälliges, unerwünschtes Einführen des Führungsvorsprungs zunächst in den einen, dann in den anderen Kanal oder durch Berührung der Ein- und Auslasskanäle von Kartusche und Mischer beim ungünstigen verkippten Aufsetzen in der falschen Position, oder analog beim verkippten Wiederaufsetzen eines Verschlussstopfens. Figure 12 shows a sectional view of a mixer and a cartridge of the system according to the invention, the case being shown that a user tries to place the mixer incorrectly (tilted) on the cartridge. An important feature of the system according to the invention is the avoidance of an undesired carryover of the catalyst component and the base component and which could lead to the other paste component in each case and to their contamination. This could occur through accidental, undesired introduction of the guide projection first into one channel, then into the other, or from touching the inlet and outlet channels of the cartridge and mixer when the cartridge and mixer are tilted in the wrong position, or similarly when a stopper is tilted back on.

Diese ungünstigen Konstellationen werden durch das Zusammenspiel und die geometrische Gestaltung und Anordnung von Führungsvorsprung, Gewinde und Trennwand 31 vermieden, wie dies in Figur 12 dargestellt ist. Hierbei ist erfindungsgemäß der Führungsvorsprung am Mischer (bzw. an einem Verschluss-Stopfen) so gestaltet, dass er sich nicht in die Auslass-Kanäle einführen lässt. Weiter ist die Trennwand 31 so dimensioniert, dass sie zwischen den Auslass-Kanälen der Kartusche nur geringe Kippwinkel zulässt. An den Auslasskanälen der Kartusche können ggf. Konturen angebracht sein, die das Spiel für die eingesetzte Trennwand 31 im Hinblick auf ungünstige Kippwinkel weiter einschränken. Ein Verschluss-Stopfen kann einen zusätzlichen hülsenformigen Kragen aufweisen (an der Stelle, wo sich beim Mischer das Gewinde befindet) und vermeidet somit auch ungünstige Kippwinkel.These unfavorable constellations are avoided by the interaction and the geometric design and arrangement of the guide projection, thread and partition 31, as shown in FIG Figure 12 is shown. According to the invention, the guide projection on the mixer (or on a sealing plug) is designed in such a way that it cannot be introduced into the outlet channels. Furthermore, the partition wall 31 is dimensioned in such a way that it allows only small tilt angles between the outlet channels of the cartridge. Contours can optionally be attached to the outlet channels of the cartridge, which further restrict the clearance for the partition 31 used with regard to unfavorable tilt angles. A sealing plug can have an additional sleeve-shaped collar (at the point where the thread is located on the mixer) and thus also avoids unfavorable tilt angles.

Bezugszeichen:Reference number:

1a, 1b1a, 1b
Kartuschecartridge
2, 32, 3
Behältercontainer
44th
AnschlussbereichConnection area
5, 65, 6
Auslassöffnung bzw. -stutzenOutlet opening or nozzle
77th
Platteplate
88th
Ringring
99
Innengewindeinner thread
10a, 10b10a, 10b
Öffnungopening
11a, 11b, 11c11a, 11b, 11c
Mischermixer
1212
AußengewindeExternal thread
13a, 13b, 13c13a, 13b, 13c
FührungsvorsprungLeadership advantage
1414th
RastnockeLocking cam
1515th
RastgegennockeLocking cam
20a, 20b20a, 20b
Mischermixer
21a, 21b21a, 21b
Kartuschecartridge
2222nd
Öffnungopening
2323
FührungsvorsprungLeadership advantage
24, 2524, 25
EinlassstutzenInlet port
2626th
VerschlussstopfenSealing plug
2727
StutzenSupport
2828
RastelementLocking element
2929
TorsionselementTorsion element
3030th
Stegweb
100100
Kolbenpiston
101101
GrundkörperBase body
102102
EntlüftungsöffnungVent
103103
VerschlusselementClosure element
104104
Vorsprunghead Start
105105
NutGroove
106106
EntlüftungsschlitzVentilation slot

Claims (14)

  1. A system comprised of several different types of similar cartridges (1a, 1b; 21a, 21b) and several different types of similar mixers (11a, 11b, 11c; 20a, 20b) that can be connected thereto, wherein the cartridges are designed as dual cartridges with two interconnected containers (2, 3), which each have an outlet opening or nozzle (5, 6), and the mixers each have two inlet openings or nozzles (24, 25) that can be coupled to the outlet openings or nozzles (5, 6) of the cartridges, wherein the size of the inlet openings or nozzles (24, 25) for each mixer type (11a, 11b, 11c; 20a, 20b) and the size of the outlet openings or nozzles (5, 6) for each cartridge type (1a, 1b; 21a, 21b) are identical, and wherein, in order to allocate at least one mixer type (11a, 11b, 11c; 20a, 20b) to at least one cartridge type (1a, 1b; 21a, 21b), each mixer type (11a, 11b, 11c; 20a, 20b) is equipped with a guide projection (13a, 13b, 13c; 23) that has a different cross section than the other types of mixers (11a, 11b, 11c; 20a, 20b) and extends in an axial direction of the mixer (11a, 11b, 11c; 20a, 20b), and wherein each cartridge type (1a, 1b; 21a, 21b) is equipped with an opening (10a, 10b; 22) that differs in cross section from the other types of cartridges (1a, 1b; 21a, 21b) for receiving a guide projection (13a, 13b, 13c; 23) of a mixer (11a, 11b, 11c; 20a, 20b), characterized in that, in order to fasten a mixer to a cartridge, each cartridge type (1a, 1b; 21a, 21b) is provided with a female thread (9) and each mixer type (11a, 11b, 11c; 20a, 20b) is provided with a male thread (12), wherein the male thread (12) of each mixer type (11a, 11b, 11c; 20a, 20b) can be screwed into the respective female thread (9) of each cartridge type (1a, 1b; 21a, 21b), that the guide projection (13a, 13b, 13c; 23) of the mixer (11a, 11b, 11c; 20a, 20b) protrudes in an axial direction over the inlet openings or nozzles (24, 25),
    wherein the guide projections (13a, 13b, 13c; 23) of various types of mixers (11a, 11b, 11c; 20a, 20b) and/or the openings (10a, 10b; 22) of various types of cartridges (1a, 1b; 21a, 21b) have projections and/or recesses that vary in cross sectional design and/or vary in terms of positioning,
    and wherein the guide projections (13a, 13b, 13c; 23) are provided with a coding that is adjusted to the contour of the opening (10a, 10b; 22) of the cartridge in such a way that the mixer (11a, 11b, 11c; 20a, 20b) can only be connected with the cartridge (1a, 1b; 21a, 21b) in a specific orientation.
  2. The system according to claim 1, characterized in that each cartridge type (1a, 1b; 21a, 21b) can be connected with just one of the types of mixers (11a, 11b, 11c; 20a, 20b), and/or that each mixer type (11a, 11b, 11c; 20a, 20b) can be connected with just one of the types of cartridges (1a, 1b; 21a, 21b).
  3. The system according to one of the preceding claims, characterized in that an element that clads the lumens is provided in at least one outlet opening or at least one nozzle (5, 6) at least given a cartridge (1a; 21a, 21b) with a ratio between the volumes of its containers (2, 3) that differs from 1 : 1.
  4. The system according to one of the preceding claims, characterized in that the guide projections (13a, 13b, 13c; 23) of the mixers (11a, 11b, 11c; 20a, 20b) and/or the openings (10a, 10b; 22) of the cartridges (1a, 1b; 21a, 21b) are ring segment-shaped or polygonal in cross section.
  5. The system according to one of the preceding claims, characterized in that the several different types of mixers (11a, 11b, 11c; 20a, 20b) have at least one dynamic mixer with a rotationally drivable mixing element and/or at least one static mixer with a non-drivable mixing element.
  6. The system according to one of the preceding claims, characterized in that the mixers (11a, 11b, 11c; 20a, 20b) each have a mixing chamber, and that at least two types of mixers (11a, 11b, 11c; 20a, 20b) of the system differ in that the diameters of their mixing chambers, the length of the mixing chambers and/or the geometry of the mixing element and/or the number of mixing elements vary.
  7. The system according to one of the preceding claims, characterized in that the guide projections (13a, 13b, 13c; 23) of the mixers (11a, 11b, 11c, 20a, 20b) are arranged spaced apart from the inlet openings or nozzles (24, 25) and spaced apart from the male thread (12), and that the guide projections are longer than the inlet openings or nozzles.
  8. The system according to one of the preceding claims, characterized in that the mixers (11a, 11b, 11c; 20a, 20b) and cartridges (1a, 1b; 21a, 21b) are each provided with latching elements (14, 15), which detachably engage with each other once the male thread (12) of a mixer (11a, 11b, 11c; 20a, 20b) has been completely screwed into the female thread (9) of a cartridge (1a, 1b; 21a, 21b).
  9. The system according to one of the preceding claims, characterized in that at least two types of cartridges (1a, 1b; 21a, 21b) of the system differ in that the ratio between the volumes of their containers (2, 3) varies.
  10. The system according to one of the preceding claims, characterized in that a partition wall (31) is provided between the inlet openings or nozzles (24, 25) of the mixer (11a, 11b, 11c; 20a, 20b).
  11. The system according to claim 10, characterized in that the partition wall (31) of the mixer (11a, 11b, 11c; 20a, 20b) protrudes in an axial direction over the inlet openings or nozzles (24, 25).
  12. The system according to one of the preceding claims, characterized in that the outlet openings or nozzles (5, 6) of the cartridges (1a, 1b; 21a, 21b) can be closed with a removable plug (26).
  13. The system according to claim 12, characterized in that the outlet openings or nozzles (5, 6) of similar cartridges (1a, 1b; 21a, 21b) can be closed with respectively identical plugs (26).
  14. The system according to claim 12 or 13, characterized in that the plug has two nozzles (27) that can be inserted into the outlet openings or nozzles (5, 6) of the cartridges (1a, 1b; 21a, 21b) as well as at least one latching element (28) that can be latched onto the cartridges, preferably onto the female thread (9) of the cartridges, which is connected with the nozzles via an elastically twistable torsion element (29) in such a way that the nozzles (27) can be elastically twisted relative to the at least one latching element (28).
EP12744010.5A 2011-08-24 2012-08-10 System composed of cartridges and mixers Active EP2747898B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12744010.5A EP2747898B1 (en) 2011-08-24 2012-08-10 System composed of cartridges and mixers

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102011111046 2011-08-24
PCT/EP2011/068784 WO2012055926A1 (en) 2010-10-26 2011-10-26 Double cartridge, mixer therefor and combination of double cartridge and mixer
DE102012106094 2012-07-06
EP12744010.5A EP2747898B1 (en) 2011-08-24 2012-08-10 System composed of cartridges and mixers
PCT/EP2012/065688 WO2013026716A1 (en) 2011-08-24 2012-08-10 System composed of cartridges and mixers

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EP2747898A1 EP2747898A1 (en) 2014-07-02
EP2747898B1 true EP2747898B1 (en) 2020-10-07

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WO (1) WO2013026716A1 (en)

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USD782259S1 (en) * 2014-09-23 2017-03-28 Sika Technology Ag Cartridge assembly
US9572555B1 (en) * 2015-09-24 2017-02-21 Ethicon, Inc. Spray or drip tips having multiple outlet channels
USD792177S1 (en) * 2016-02-25 2017-07-18 Phillip Phung-I Ho Head for a dual-cartridge dispenser
US10471462B2 (en) * 2017-03-13 2019-11-12 Abacocay, Llc Device for applying spackling paste or caulking materials and methods of using the same
DE102017112440A1 (en) * 2017-06-06 2018-12-06 Shin-Etsu Silicones Europe B.V. Container and dosing device for viscous materials
EP3658266B1 (en) 2017-07-28 2023-02-22 3lmed GmbH Mixer with compensation channel and/or accumulation chamber
DE102017117199A1 (en) 2017-07-28 2019-01-31 3lmed GmbH Mixer with compensation channel and / or stowage chamber
DE102017117557A1 (en) 2017-08-02 2019-02-07 3lmed GmbH application system
USD896970S1 (en) * 2018-01-31 2020-09-22 Kettenbach Gmbh & Co. Kg Medical cartridge
JP7369145B2 (en) * 2018-05-22 2023-10-25 ノードソン コーポレーション Cap and cartridge assembly
USD1012227S1 (en) * 2021-07-22 2024-01-23 Medmix Switzerland Ag Cartridge
EP4252896A1 (en) * 2022-04-01 2023-10-04 medmix Switzerland AG Mixer for mixing and dispensing at least two components

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US20140197204A1 (en) 2014-07-17
EP2747898A1 (en) 2014-07-02
WO2013026716A1 (en) 2013-02-28
US9272252B2 (en) 2016-03-01

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