Receptacle for a two-component or multi-component cartridge and two-component or multi-component cartridge

Abstract

A mixer 4 is arranged at a nozzle area 22 of a two-component cartridge 1 according to the invention. The mixer 4 is formed integrally with a lid element 5. The lid element 5 closes an upper open side of a first wall section 201, which defines an inner outlet volume of the nozzle area 22 and is open at the top. A first filling substance from the first chamber 20 is deflected by the lid element 5 and exits through radial openings 213 into an outer outlet volume to mix with a second filling substance.

Description

TECHNICAL AREA

[0001] This application relates to a receiving container for a two- or multi-component cartridge for storing and dispensing plastic filling substances, comprising: a first chamber with a first volume for a first filling substance, enclosed by a first wall, a second chamber with a second volume for a second filling substance, enclosed by a second wall, a nozzle arrangement with a first wall section and a second wall section, which at least partially encloses the first wall section, wherein the first wall section encloses a first approximately cylindrical discharge volume, and the second wall section encloses a second approximately annular discharge volume, wherein the first wall section is connected to the first wall and the second wall section is connected to the second wall.Furthermore, the registration relates to a two- or multi-component cartridge comprising a receiving container as described above. STATE OF THE ART

[0002] In the prior art, a variety of two-component cartridges for storing and preserving plastic substances, such as sealants, adhesives, etc., are known. Two-component cartridges have two receiving chambers, each for one substance. The substances are kept separate during storage so that they cannot react with each other. The chambers can be arranged side by side (side-by-side cartridges) or nested within each other, e.g., as coaxial chambers (coaxial cartridges). The inner chamber of coaxial cartridges typically has a cylindrical receiving volume, while the outer chamber has an annular receiving volume. The wall construction usually consists of nested cylindrical coaxial tubes in the nozzle areas.

[0003] In the rear (proximal) section, the two tube bodies are sealed by a cylindrical piston and a ring piston. Before use, the two-chamber cartridge is sealed by a cap located on a distal mouthpiece of the cartridge, which also allows it to be resealed during work interruptions.

[0004] To dispense the filling substances, the pistons are pushed forward, causing the substances to be released through outlets in the inner and outer tube bodies. The outlets of the two chambers are formed by the nested nozzles of the two tube bodies. For use of the cartridge, a mixing tube can be screwed onto the nozzle of the outer tube body. This mixing tube contains a mixer with axially aligned mixing elements. The mixing tube has a distal opening through which the mixed substances can exit. The substances should be mixed as quickly and homogeneously as possible, so that a sufficiently homogeneous mixture emerges from the distal opening of the mixing tube.

[0005] On the other hand, the mixing system should be designed to enable homogeneous mixing of the two filling substances using a mixing tube with as few mixing elements as possible and the shortest possible length, in order to reduce the required dispensing pressure. The required dispensing pressure increases with the number of axially sequential mixing elements in the mixing tube, as each additional element increases flow resistance. This is particularly relevant when the substances to be dispensed and mixed are more viscous.

[0006] In order to make the mixer as short as possible and with as few mixing elements as possible, the two substances should already be divided into a plurality of flow strands in the mouthpiece arrangement, i.e. in the area of ​​the chamber outlets, before they enter the inlet-side (proximal) area of ​​the mixer.

[0007] The publication EP 2 258 468 B1 shows an example of a mixing system in which a single, approximately cylindrical outlet channel of the nozzle section of the inner tube body widens at its outlet end in the form of a ring-like arrangement of several outwardly diverging, pocket-like extensions. These extensions extend into the light cross-section of the outlet channel for the second material component, which runs annularly around this outlet channel for the first material component in the nozzle section of the outer tube body. However, this design is complex to manufacture because the outlets of the chambers feature intricate geometries with undercuts. TASK OF INVENTION

[0008] The object of the present invention is to provide a manufacturing-efficiently simplified receiving container or a manufacturing-efficiently simplified two- or multi-component cartridge with good mixing of the filling substances in the mouthpiece area of ​​the cartridge and a simplified method for its or their manufacture. TECHNICAL SOLUTION

[0009] This problem is solved by a receiving container according to claim 1 or 6, a two- or multi-component cartridge according to claim 10 or 15 and a method for manufacturing the two- or multi-component cartridge according to claim 18. Advantageous embodiments will become apparent from the dependent claims and the present description of the invention.

[0010] An inventive receiving container for a two- or multi-component cartridge for storing and dispensing plastic filling substances comprises: a first chamber with a first volume for a first filling substance, enclosed by a first wall, a second chamber with a second volume for a second filling substance, enclosed by a second wall, and a mouthpiece arrangement with a first wall section and a second wall section that at least partially encloses the first wall section, wherein the first wall section encloses a first approximately cylindrical outlet volume, and the second wall section encloses a second approximately annular outlet volume, wherein the first wall section is connected to the first wall and the second wall section is connected to the second wall.

[0011] The arrangement according to the invention essentially consists of a first, approximately cylindrical outlet channel / volume of the nozzle assembly of the inner tube body and a second, approximately annular outlet channel / volume of the nozzle assembly of the outer tube body. Since the first outlet volume (as well as the second outlet volume) is open upwards (i.e., at the distal end of the wall sections), the nozzle assembly is designed without undercuts. This makes it possible to manufacture the entire receiving container in one piece using an injection mold. To nevertheless ensure good premixing of the filling substances before they enter a downstream mixer, the first filling substance is sealed by a separate closure of the first outlet volume in the distal end region of the first wall section, for example, by a lid element that forms a closure, deflection, or baffle plate with or without a guide structure.The first filling substance thus enters, deflected with at least one radial or transverse component, through the radial openings into a strand of the second filling substance coming from the second chamber.

[0012] The first and second walls are essentially designed as cylindrical shell walls. Within the scope of the invention, "essentially cylindrical" or "approximately cylindrical" is intended to include shapes that, like a tube with any cross-section, define a volume, i.e., variations of a cylindrical shape achieved by changing the cross-section. The cross-section can also vary axially.

[0013] In the first wall section, at least one radial opening can be formed, which allows the first filling substance to exit from the first exit volume into a strand of the second filling substance with at least one radial component.

[0014] The arrangement and geometry of the radial openings allow strands of the first and second filler substances to be guided into one another and thus premixed in an optimized manner depending on the application.

[0015] The arrangement according to the invention enables a significant reduction in the number of mixing elements required in the mixer's mixing tube to achieve homogeneous mixing of the filler substances, as well as a reduction in the necessary dispensing pressure. Good premixing of the filler material strands is achieved due to the non-axial directional component of the first filler substance. The number of mixing elements required for the subsequent mixing process until a homogeneous mixture of the filler substances is achieved at the outlet of the mixing tube is reduced. Furthermore, the design according to the invention simplifies the manufacture of the receiving container and thus the entire cartridge.

[0016] Preferably, the first wall section is essentially cylindrical and defines a distal opening. The distal opening is particularly essentially circular and corresponds to the diameter of the first outlet volume.

[0017] The receiving container is preferably formed in one piece. The undercut-free design of the container's nozzle arrangement enables the production of a one-piece container using an injection molding process. As a result, at least the manufacturing step of joining the inner and outer tube bodies, required in the prior art, is eliminated.

[0018] The radial openings are preferably open towards the distal edge of the first wall section. This means that, viewed from above, the radial openings are also free of undercuts in the first wall section.

[0019] The first wall section can be designed with radial openings without undercuts, e.g., the aforementioned upward-facing radial openings. A tool, e.g., a core, that engages the cavity from above can thus be withdrawn during demolding without overcoming resistance from undercuts and without affecting the final product.

[0020] While in the prior art the inner and outer pipes were manufactured in two parts and then joined together, the present invention allows the outer and inner pipes to be manufactured in one piece. A cover element or a deflecting or impact surface can be arranged at the upper opening of the first outlet volume and formed integrally with the mixer.

[0021] Another receiving container according to the invention for a two- or multi-component cartridge for storing and dispensing plastic filling substances comprises: a first chamber with a first volume for a first filling substance, enclosed by a first wall, a second chamber with a second volume for a second filling substance, enclosed by a second wall, a mouthpiece arrangement with a first wall section and a second wall section, wherein the first wall section is connected to the first wall and the second wall section is connected to the second wall, an attachment connected to the first wall section, wherein the second wall section at least partially encloses the attachment, the attachment comprising a mantle-like wall, at least one radial opening formed in the mantle-like wall, and a lid element, wherein the lid element is formed integrally with the mantle-like wall and closes a distal opening bounded by the mantle-like wall.

[0022] In this embodiment, the baffle plate, in the form of the cover element, is formed as a single unit with the jacket-like wall as an attachment. The attachment can optionally be connected to the mixer.

[0023] The attachment is connected in particular to a connection area of ​​the first wall section, in particular by positive locking, in particular by clipping.

[0024] The essay can be designed as a single piece.

[0025] In all the aforementioned embodiments, the radial openings can have one of the following geometries: circular, elongated (particularly with a circular segment-like or pointed bottom), triangular, dovetail-like, rectangular, with or without a structure, such as serrations, on the axial edges of the openings. The geometry and arrangement of the openings can be optimized, depending on the application, to achieve good premixing. For example, the shape and surface of the emerging strands can be adjusted by the geometry.

[0026] A two- or multi-component cartridge according to the invention for storing and dispensing plastic filling substances comprises: a receiving container as described above, and a lid element designed as a component separate from the receiving container and designed to close a distal opening bounded by the first wall section.

[0027] In a particular embodiment, the lid element can have at least one axial and / or radial and / or oblique opening (with both axial and radial components) for the passage of the first filling substance. This is particularly necessary if the first wall section has no openings. The openings can have suitable geometries, sizes, or arrangements.

[0028] A cover element can also have geometries other than flat ones, e.g., a dome-like geometry. The cover element can also have a (solid) body that forms an additional structure above the opening created by the first wall section. Outlet openings can pass through this body.

[0029] The first wall section can be longer or shorter in height. In extreme cases, the first wall section exists only as the edge of the outlet opening of the first chamber.

[0030] A lid element can also be formed in one piece with the upper edge of the first wall section, e.g. in the form of tabs, which are then folded inwards over the opening formed by the first wall section or the opening defined by the first wall section and fastened (e.g. to each other) in such a way that they at least partially close the opening.

[0031] One aspect of the present invention is based, inter alia, on the fact that, when the cartridge is used to dispense mixed filling substances, the lid element rests on or is connected to the central tube body (e.g., clipped, snapped, integrally formed, etc.) and closes the distal opening. The geometry of the radial openings, which preferably open towards the distal opening defined by the upper edge of the first wall section, can be selected with relative flexibility. Furthermore, the lid element can be designed with guides, guide ribs, and impact surfaces to optimize the material strands and their flow direction. The lid element is particularly well formed as a single unit with the mixer.

[0032] In summary, a baffle plate is assigned to the central area of ​​the mouthpiece part associated with the inner tube body in the area of ​​its distal opening, which covers the central area of ​​the cylindrical outlet volume, so that the first filling substance exiting from the interior of the first tube body flows radially past the baffle plate through the radial openings outwards into the second outlet volume and thus forms a plurality of material strands.

[0033] The two- or multi-component cartridge may also include a mixing tube and a mixer that can be attached to the mouthpiece assembly.

[0034] In a preferred embodiment of the invention, the lid element is connected to the mixer.

[0035] The lid element can be formed in one piece with the mixer.

[0036] Another two- or multi-component cartridge according to the invention for storing and dispensing plastic filling substances comprises: a receiving container comprising a first chamber with a first volume for a first filling substance, enclosed by a first wall, a second chamber with a second volume for a second filling substance, enclosed by a second wall, a mouthpiece arrangement comprising a first wall section and a second wall section, wherein the first wall section is connected to the first wall and the second wall section is connected to the second wall, and an attachment connected to the first wall section, wherein the second wall section at least partially encloses the attachment, the attachment comprising a mantle-like wall, at least one radial opening formed in the mantle-like wall, and a lid element, wherein the lid element is formed integrally with the mantle-like wall and closes a distal opening bounded by the mantle-like wall.

[0037] In all variants of the invention, the lid element can be designed as a deflecting and / or impact plate for radially deflecting a strand of the first filling substance.

[0038] The cover element can have at least one of the following geometries on its proximal side: flat, planar, perpendicular to the first wall section or to the mantle-like wall; concave; convex; circular segment-like (concave, convex); curved; with a guide structure, with guiding elements, e.g. guide webs, guide ribs, straight, oblique, and / or serpentine.

[0039] A method according to the invention for producing a two- or multi-component cartridge comprises at least the following steps: (a) Manufacturing the receiving container, as described above, in one piece in a first injection molding process; and (b) manufacturing a mixer with an associated lid element in a further injection molding process.

[0040] Before use, the mixer is attached to the receiving container with the lid element, for example, to the first section of the wall.

[0041] The invention can be used for both the provision of coaxial cartridges and the provision of side-by-side cartridges. BRIEF DESCRIPTION OF THE FIGURES

[0042] The invention becomes clear from the drawings and the following description of the figures. These show examples. Fig. 1 an axial sectional view of a mouthpiece area of ​​a two-component cartridge according to the invention with a mixer and mixing tube arranged at the mouthpiece; Fig. 2a a perspective view of a first embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a mixer arranged on the mouthpiece; Fig. 2b an axial sectional view of the mouthpiece area Fig. 2a ; Fig. 3a a perspective view of a second embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element arranged on the mouthpiece; Fig. 3b an axial sectional view of the mouthpiece area Fig. 3a ; Fig. 4a a perspective view of a mixer according to a first variant from Fig. 2a, 2b or 3a, 3b; Fig. 4b an axial sectional view of the mouthpiece area Fig. 4a ; Fig. 5a a perspective view of a mixer according to a second variant from Fig. 2a, 2b or 3a, 3b; Fig. 5b an axial sectional view of the mouthpiece area Fig. 5a ; Fig. 6a a perspective view of a mixer according to a third variant from Fig. 2a, 2b or 3a, 3b; Fig. 6b an axial sectional view of the mouthpiece area Fig. 6a ; Fig. 7a a perspective view of a third embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention; Fig. 7b an axial sectional view of the mouthpiece area Fig. 7a ; Fig. 8a a perspective view of a fourth embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element arranged on the mouthpiece; Fig. 8b an axial sectional view of the mouthpiece area Fig. 8a ; Fig. 9a a perspective view of a fifth embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element arranged on the mouthpiece; Fig. 9b an axial sectional view of the mouthpiece area Fig. 9a ; Fig. 10a a perspective view of a sixth embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element arranged on the mouthpiece; Fig. 10b an axial sectional view of the mouthpiece area Fig. 10a ; Fig. 11a a perspective view of a seventh embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element arranged on the mouthpiece; Fig. 11b an axial sectional view of the mouthpiece area Fig. 11a ; Fig. 12a a perspective view of an eighth embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element arranged on the mouthpiece; Fig. 12b an axial sectional view of the mouthpiece area Fig. 12a ; Fig. 13a an axial sectional view of a ninth embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element arranged on the mouthpiece; Fig. 13b a perspective view of the mouthpiece area from Fig. 13a ; Fig. 14a an axial sectional view of a tenth embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element arranged on the mouthpiece; Fig. 14b a perspective view of the mouthpiece area from Fig. 14a ; Fig. 15a an axial sectional view of an eleventh embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element arranged on the mouthpiece; Fig. 15b a perspective view of the mouthpiece area from Fig. 15a ; Fig. 16a a perspective view of a twelfth embodiment of a mouthpiece area of ​​a two-component cartridge according to the invention with a lid element in a first state; Fig. 16b the perspective view from Fig. 16a in a second state; Fig. 17a-17c Views of a thirteenth embodiment of the invention; Fig. 18 an axial sectional view of a coaxial cartridge; Fig. 19 An axial sectional view of a side-by-side cartridge. DESCRIPTION OF PREFERRED EXAMPLES OF THE INVENTION

[0043] In the figures, identical or corresponding elements are provided with the same reference symbols.

[0044] In the Figur 1 The mouthpiece area of ​​a two-component cartridge 1 according to the invention is shown in an axial sectional view.

[0045] The cartridge 1 has a receiving container 2 for two different substances with a first inner essentially cylindrical chamber 20 for a first filling substance, and a second outer essentially ring-shaped chamber 21 for a second filling substance.

[0046] A first cylindrical wall 200 of the inner first chamber 20 is designed as a first tube body that defines a proximal first volume. The wall 200 separates the first chamber 20 from the second chamber 21. In the distal opening region 22, the first tube body has a first wall section 201 that defines a distal first outlet volume with a smaller radius than the proximal first volume. Radial openings 213 are formed in the first wall section 201, through which the first filling substance with a radial flow component can pass during the dispensing of the substances and mix with the second filling substance coming from below from the second chamber 21.

[0047] The second chamber 21 is designed as a cylindrical tube body. A second cylindrical wall 210 defines a proximal annular second volume. The second wall 210 forms the outer boundary of the volume of the second chamber 21. The second wall 210 transitions into an end wall 211. Adjoining the end wall 211 is a distal cylindrical second wall section 212, which defines a distal second outlet volume with a smaller radius than the proximal second volume. An external thread 2120 for connecting or screwing on a mixing tube 3 is provided on the outside of the second wall section 212.

[0048] The proximal first wall 200 is arranged concentrically to the proximal second wall 210. The proximal first wall 200 has a smaller radius than the proximal second wall 210. The distal first wall section 201 is arranged concentrically to the distal second wall section 212. The distal first wall section 201 has a smaller radius than the distal second wall section 212.

[0049] A connecting element 23 is arranged between wall sections 201 and 212, connecting the first tube body 20 to the second tube body 21. The connecting element 23 has one or more webs extending radially between wall sections 201 and 212 in the circumferential direction, between which axial openings are provided for the passage of the second filling substance during the dispensing of the substances. In particular, the first tube body and the second tube body are formed as a single unit.

[0050] An outlet area 22 of the receiving container 2 essentially consists of wall sections 201 and 212. A mixing tube 3 is screwed onto the outlet area 22, particularly on the outside of the second wall section 212, before the cartridge 1 is used. The mixing tube 3 is a tubular body with a proximal connecting section 30, a cylindrical inner volume 31, and a distal dispensing opening (not shown). A mixer 4 is arranged in the cylindrical inner volume 31. The mixer 4 has a series of axially arranged mixing elements 41, 42, 43,... which repeatedly twist and divide the strands of material passing through the mixing tube 3, thus effecting mixing.

[0051] A (separate) cover element 5 is arranged on the upper open side of the first wall section 201, closing the outlet of the first wall section 201. The cover element 5 ensures that the substance flowing out of the first chamber 20 is deflected and exits through the radial openings 213. The flow direction of the substance has at least a radial component. In the intermediate area between the wall sections 201 and 212, or immediately outside the openings 213 and above the outlet of the second wall section 212, the filling substances mix before they (guided by the wall of the mixing tube 3) enter the area of ​​the mixer 4. The cover element 5 can be designed as a separate component, or, as in the present embodiment, it can be connected to or formed integrally with the mixer 4.

[0052] The design allows the receiving container 2 to be formed in one piece with the first pipe body and the second pipe body, with the pipe bodies being connected by the connecting element 23, whereas in the prior art the pipe bodies are manufactured separately and joined together after manufacture, e.g. by clipping them together.

[0053] In contrast, in the present invention, in a first process step of the manufacture of the cartridge 1 according to the invention, the receiving container 2 is manufactured in one piece using an injection molding process.

[0054] In a further process step, a mixer 4 with the associated lid element 5 is manufactured in another injection molding process. The order of the process steps is irrelevant.

[0055] Before using the cartridge 1, the user attaches the cover element 5 (which is integrally formed with the mixer 4) to the opening of the first wall section 201 and screws the mixing tube 3, with the mixer 4 housed within it, onto the opening area 22, specifically onto the outside of the second wall section 212. Alternatively, the mixer 4, with the integrally formed cover element 5, is inserted into the mixing tube 3, and the mixing tube 3, with the mixer 4 and cover element housed within it, is screwed onto the opening area 22, specifically onto the outside of the second wall section 212. When screwed on, the cover element 5 closes the opening of the first wall section 201.

[0056] In the Figuren 2a und 2b Figure 1 shows a first embodiment of a nozzle section 22 of a two-component cartridge 1 according to the invention, with a mixer 4 arranged on the nozzle section 22. The mixer 4 is formed integrally with the lid element 5. The lid element 5 closes the upper open side of the first wall section 201. The filling substance from the first chamber 20 is deflected by the lid element 5 and exits through the radial openings 213. The openings 213 (in this case, four or an even number) are evenly distributed around the upper edge of the first wall section 201. The openings 213 are open upwards and extend downwards as elongated grooves. The bottom 2130 of the elongated groove is concave (viewed from above) with a semicircular geometry. In particular, the nozzle section 22 has no undercuts in its distal end region, so that the receiving container 2 with the nozzle section 22 can be manufactured as a single component by injection molding.

[0057] The lid element 5 is designed as a proximal section of an extended mixing element 4.

[0058] In the Figuren 3a und 3b A second embodiment of a mouthpiece area 22 of a two-component cartridge 1 according to the invention is shown. The second embodiment essentially corresponds to the first embodiment.

[0059] A cover element 5 is arranged at the mouthpiece 22. The cover element 5 is either designed as a separate component and / or connected to the mixer 4. However, the cover element 5 is usually designed as an integral part of the mixer 4. The cover element 5 closes the upper open side of the first wall section 201. The openings 213 (in this case, three or odd numbers) are evenly distributed around the upper edge of the first wall section 201. The openings 213 are designed as in the first embodiment.

[0060] In the second embodiment, the cover element 5 is snapped onto the upper edge of the first wall section 201. The cover element 5 can have different outlet geometries. As in the first embodiment, a mixer can be integrally attached to the cover element (not shown). This also applies to all subsequently described embodiments and variants.

[0061] The Figuren 4a und 4b show a first variant of the first and second embodiments of the invention. In the Figur 4a A mixer 4 with an attached lid element 5 is shown. The lid element 5 has an inner (proximal) deflecting surface or impact surface 50, which (viewed from below) is convexly shaped like a spherical segment. The impact surface 50 deflects the substance flowing towards the openings 213 in a desired flow direction, so that the first filling substance is premixed with the second filling substance as effectively as possible in the mixing area outside the openings 213.

[0062] In another variant according to the Figuren 5a und 5b The cover element 5 has an inner (proximal) deflection surface or impact surface 50, which (viewed from below) is concave in the shape of a spherical segment. The flow path to the openings 213 is increased by the concave geometry of the impact surface 50.

[0063] In another variant according to the Figuren 6a und 6b The lid element 5 has an inner (proximal) deflection or impact surface 50, which is provided with guide ribs 51. In principle, guide ribs can assume any shape (e.g., straight, oblique, serpentine in all directions) that optimizes the flow path or flow directions for a specific substance.

[0064] In the Figuren 7a und 7b The mouthpiece areas 22 of further embodiments of the invention shown in Figures 8a and 8b, 9a and 9b, 10a and 10b, 11a and 11b, and 12a and 12b differ from the first and second embodiments in the arrangement and geometry of the passage openings 213 formed in the first wall section 201.

[0065] In a third embodiment according to the Figuren 7a und 7b The first wall section 201 is shortened and has a connection area 2010 with an undercut. An attachment 203 is arranged in the region of the distal end of the first wall section 201 and connected to it, for example, by clipping. The attachment 203 has a connection area 2030 that is connected to the connection area 2010 of the first wall section 201, for example, by clipping. The attachment 203 has a cylindrical outer wall 2031 and a cover element 5 integrally formed with the outer wall 2031. Several radial openings 213 (different numbers are possible, both even and odd), in this example round holes, are formed in the outer wall 2031, but this is not the only possible configuration. The distribution of the openings 213 on the outer surface 201 can be symmetrical or asymmetrical.

[0066] In a fourth embodiment according to the Figuren 8a und 8b The openings 213 are designed as elongated grooves, however, unlike in the first and second embodiments, with a tapered bottom 2130.

[0067] In a fifth embodiment according to the Figuren 9a und 9b The openings 213 are designed as triangles open to the upper edge of the first wall section 201, the legs of which meet at a point 2130 towards the bottom.

[0068] In a sixth embodiment according to the Figuren 10a und 10b The openings 213 are rectangular and open towards the upper edge of the first wall section 201. The axial edges 2131 of the openings 213 are provided with a structure, e.g., serrations. The serrations 2131 provide a larger surface area for the material strand pressed through the openings 213 and can thus lead to better premixing of the filler substances.

[0069] In a seventh embodiment according to the Figuren 11a und 11b One or more openings 213 consist of a series of circumferentially offset rectangles with serrated and / or offset teeth along their axial edges 2131. The openings 312 are open to the upper edge of the first wall section 201. The attached cover element 5 forms the upper edge of the openings 213.

[0070] In an eighth embodiment according to the Figuren 12a und 12b One or more openings 213 each consist of two trapezoidal cutouts, the shorter base sides of which are of equal length and lie against each other, so that an opening 213 with a sloping inlet on both sides is formed. The shape of the openings 213 after the cover element 5 has been attached corresponds to two symmetrically joined dovetail geometries.

[0071] The Figuren 13a und 13b Figure 9 shows a ninth embodiment of a nozzle area 22 of a two-component cartridge according to the invention, with a lid element 5 arranged on the nozzle. Unlike the previously described embodiments, no radial openings are provided in the first wall section 201, but rather axial openings 51 in the lid element 5. In this embodiment, the lid element 5 is clipped onto the first wall section 201. The axial outlets are designed with partially different diameters and, if necessary, with a non-uniform arrangement.

[0072] The Figuren 14a und 14b Figure 1 shows a tenth embodiment of a mouthpiece area 22 of a two-component cartridge according to the invention with a lid element 5 arranged on the mouthpiece. Unlike in the ninth embodiment, the lid element 5 is dome-shaped with openings 51 that are axial, radial and oblique (i.e., provided with axial and radial components).

[0073] The Figuren 15a und 15b Figure 1 shows an eleventh embodiment of a mouthpiece area 22 of a two-component cartridge according to the invention, with a lid element 5 arranged on the mouthpiece. Unlike in the ninth embodiment, however, the axial outlets are arranged uniformly and have the same diameters. Combinations of embodiments nine to eleven are possible.

[0074] In the Figuren 16a und 16b Figure 1 shows a twelfth embodiment of a mouthpiece area 22 of a two-component cartridge according to the invention, with a lid element 5 arranged on the mouthpiece. In this embodiment, the lid element 5 is formed integrally with the first wall section 201. Figur 16a The figure shows the state after injection molding. The lid element 5, consisting of tabs 52, is injection molded in one piece with the cartridge. The tabs extend substantially axially forward from the upper edge of the first wall section 201. Subsequently, the tabs 52 are bent inwards and clipped together, forming a substantially axial closure 5. The lid element 5 may have axial / radial openings (not shown) and / or the first wall section 201 may have radial openings (not shown).

[0075] The Figuren 17a bis 17c Figure 1 shows a twelfth embodiment of a mouthpiece area 22 of a two-component cartridge according to the invention, with a lid element 5 arranged on the mouthpiece. Unlike the embodiments described previously, the lid element 5, with which a mixer 4 is formed in one piece, is mounted on the inner outlet. The first wall section 201 is only rudimentary or forms the edge of the opening of the first chamber 20. The lid element 5 is provided with at least one axial opening.

[0076] The Figur 17c Figure 5 shows a section of the combination of integrated lid element 5 and mixer 4. Element 4, 5 is clipped to the opening of the first chamber 20 via a step 53. The first filling material initially exits axially through the passages 54 and is deflected laterally and radially by the baffle plate 55 towards the second filling material arriving from the second chamber 21. The combined strands are guided to the mixer 4 (usually through a mixing tube).

[0077] The Figur 18 Figure 1 schematically shows a coaxial cartridge 1 with a corresponding receiving container 2, in which the chambers 20 and 21 are arranged one inside the other, with a mixing tube 3 and a mixer 4. A nozzle assembly 22, as described above, can be integrated into this design, optionally with a lid element 5. It is evident that the container 2 can be manufactured as a single piece.

[0078] The Figur 19Figure 1 schematically shows a side-by-side cartridge 1 with a corresponding receiving container 2, in which chambers 20 and 21 are arranged side by side, with a mixing tube 3 and a mixer 4. A nozzle assembly 22, as described above, can also be integrated into this design, optionally with a lid element 5. It is evident that the container 2 can be manufactured as a single piece.

[0079] The described features of the different embodiments and variants can be combined in any number of ways within the scope of this disclosure, insofar as this is technically feasible.

Claims

1. Receiving container (2) for a two- or multi-component cartridge (1) for storing and dispensing plastic filling substances, comprising: a first chamber (20) with a first volume for a first filling substance, enclosed by a first wall (200), a second chamber (21) with a second volume for a second filling substance, enclosed by a second wall (210), and a nozzle arrangement (22) with a first wall section (201) and a second wall section (212) that at least partially encloses the first wall section (201), wherein the first wall section (201) encloses a first approximately cylindrical discharge volume, and the second wall section (212) encloses a second approximately annular discharge volume, wherein the first wall section (201) is connected to the first wall (200) and the second wall section (212) is connected to the second wall (210), wherein the receiving container (2) is formed in one piece.

2. Receiving container (2) for a two- or multi-component cartridge (1) according to claim 1, wherein the first wall section (201) is substantially cylindrical and its upper edge defines a distal opening.

3. Receiving container (2) for a two- or multi-component cartridge (1) according to claim 1 or 2, wherein at least one radial or inclined opening (213) is formed in the first wall section (201) which allows the first filling substance to exit from the first exit volume into a strand of the second filling substance flowing through the second exit volume with at least one radial component.

4. Receiving container (2) for a two- or multi-component cartridge (1) according to one of the preceding claims, wherein the radial openings in the first wall section (201) are recesses formed which are open at the distal edge of the first wall section (201).

5. Receiving container (2) for a two- or multi-component cartridge (1) according to one of the preceding claims, wherein the first wall section (201) is formed with radial openings (213) without undercuts.

6. Receptacle (2) for a two- or multi-component cartridge (1) for storing and dispensing plastic filling substances, comprising: a first chamber (20) with a first volume for a first filling substance, enclosed by a first wall (200), a second chamber (21) with a second volume for a second filling substance, enclosed by a second wall (210), and a nozzle arrangement (22) with a first wall section (201) and a second wall section (212), wherein the first wall section (201) is connected to the first wall (200) and the second wall section (212) is connected to the second wall (210), an attachment (203) connected to the first wall section (201), wherein the second wall section (212) at least partially encloses the attachment (203), the attachment (203) having a mantle-like wall (2031), at least one in the mantle-like wall (2031) formed radial opening (213),and comprises a cover element (5), wherein the cover element (5) is preferably formed integrally with the mantle-like wall (2031) and closes a distal opening bounded by the mantle-like wall.

7. Receptacle (2) for a two- or multi-component cartridge (1) according to one of the preceding claims, wherein the radial openings have one of the following geometries: circular, as an elongated hole, as an elongated hole with a circular segment-like or pointed bottom area, triangular, dovetail-like, rectangular, with or without structure, with or without serration of the axial edges of the openings (213).

8. Receiving container (2) for a two- or multi-component cartridge (1) according to claim 6 or 7, wherein the attachment (203) is connected to a connection area (2010) of the first wall section (201) and / or is connected by positive locking.

9. Receiving container (2) for a two- or multi-component cartridge (1) according to one of claims 6 to 8, wherein the attachment (203) is formed in one piece.

10. Two- or multi-component cartridge (1) for storing and dispensing plastic filling substances, comprising: a receiving container (2) according to one of the preceding claims 1 to 5 or 7, and a lid element (5) which is designed as a component separate from the receiving container (2) and is designed to close a distal opening limited by the first wall section (201).

11. Two- or multi-component cartridge (1) for storing and dispensing plastic filling substances according to claim 10, wherein the lid element (5) has at least one axial and / or radial and / or oblique passage opening for the passage of the first filling substance.

12. Two- or multi-component cartridge (1) for storing and dispensing plastic filling substances according to claim 10 or 11, wherein the two- or multi-component cartridge (1) further comprises a mixing tube (3) attachable to the mouthpiece arrangement (22) and a mixer (4).

13. Two- or multi-component cartridge (1) for storing and dispensing plastic filling substances according to claim 12, wherein the lid element (5) is connected to the mixer (4).

14. Two- or multi-component cartridge (1) for storing and dispensing plastic filling substances according to claim 11, wherein the lid element (5) is formed as a single unit with the mixer (4).

15. Two- or multi-component cartridge (1) for storing and dispensing plastic filling substances, comprising: a receiving container (2) according to any one of the preceding claims 6 to 9.

16. Two- or multi-component cartridge (1) for storing and dispensing plastic filling substances according to one of claims 10 to 14, wherein the lid element (5) is designed as a deflecting and / or impact plate for radially deflecting a strand of the first filling substance.

17. Two- or multi-component cartridge (1) for storing and dispensing plastic filling substances according to any one of claims 10 to 15, wherein the lid element (5) has at least one of the following geometries on its proximal side: flat, planar, perpendicular to the first wall section (201) or to the mantle-like wall (2031); concave; convex; circular segment-like, circular segment-like concave, circular segment-like convex; curved; with a guide structure, with guide elements, with guide ribs, with straight, inclined and / or serpentine guide elements.

18. Method for manufacturing a two- or multi-component cartridge (1), comprising at least the following steps: (a) manufacturing the receiving container (2) according to any one of claims 1 to 5 or 7 in one piece by an injection molding process; and (b) manufacturing a mixer (4) with a lid element (5) connected thereto by a further injection molding process.

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