DE69523561T2 - Bayonet connector for attaching an accessory to a multi-component cartridge or dispenser - Google Patents

Description

The present invention relates to a dispensing device according to the preamble of claim 1.

There are a large number of mixers and cartridges with means for attaching the mixer to the cartridge, for example according to US-A-4 767 026 or US-A-4 538 920, in which the mixer has a bayonet closure with two tabs which are inserted into corresponding claws of the cartridge by turning. The turning movement when connecting the complete mixer leads on the one hand to mutual contamination of the chemical components at the interface between the cartridge and the mixer, as the components pass from one outlet to the other or from one inlet to the other, whereby an undesirable reaction of the components takes place at the interface between the mixer or closure means and the cartridge, which can propagate into the cartridge outlets and lead to blockages. On the other hand, there are situations where the connection and fastening of the mixer or other accessory to a multi-component cartridge or dispensing device must be carried out in a specific position, for example when the cartridge outlets or mixer inlets have different sizes for different relative mixing ratios, or when mixers or accessories are re-attached for repeated use.

Mixers or accessories must be connected and secured to a multi-component cartridge or dispensing device in a specific orientation when the cartridge outlets or mixer inlets have different sizes for different relative mixing ratios, when special mixers with high mixing ratios are used for improved mixing efficiency, or when mixers or accessories are reconnected for repeated applications. In the latter case of reuse, any possible mutual contamination of the chemical components must be avoided during connection. Mutual contamination of reactive chemical systems can clog the cartridge outlets as well as cause a reaction to propagate into the cartridge.

US-A-5 228 599 discloses a multi-component dispensing cartridge with a mixer that is attached to the cartridge with a union nut with an internal thread, with the storage cylinders each opening into a dispensing opening with adjacent outlets, while the inlet of the mixer is not described in more detail. The mixer is placed on the cartridge and secured with the union nut, which is screwed onto an external thread of the cartridge.

Furthermore, mutual contamination can occur if the clean inlet area or the sealing plugs of a mixer or an accessory can come into contact with the chemical components in the cartridge outlet area as a result of incorrect alignment, for example by tilting, during the placement of the mixer or the sealing plugs on the cartridge before fastening. In this case, chemical contamination of the cartridge outlets can occur when the mixer or the sealing plugs are placed in the correct position. This can also lead to a blockage and the propagation of the reaction into the interior of the cartridge.

Based on this prior art, one object of the present invention is to provide a bayonet fastening device for connecting a mixer, closure means or any accessory, for example an adapter or a connecting pipe, to a multi-component dispensing device, in particular a two-component cartridge, whereby the inlets of the accessory can be aligned with respect to the cartridge outlets in only one position in order to avoid mutual contamination. This object is achieved with a device according to independent claim 1.

Finally, in all known bayonet fastening devices, the tabs of the cartridge are relatively small and therefore have limited strength and structural rigidity. This can lead to deformations, which are all the more significant as increasingly smaller mixer diameters are used, resulting in higher counterpressures that cause leaks in the seal between the mixer and the cartridge during the dispensing process.

In an improved design, the strength and structural rigidity against the load of larger hydraulic forces due to increasingly smaller mixer diameters as well as the tightness at the interface This is achieved with a device according to dependent claim 7. Further features and improvements of the device are described in the dependent claims.

The invention is described in more detail below with reference to a drawing of embodiments.

Fig. 1-6 show a first embodiment of the invention with a rotatable mixer housing, wherein

Fig. 1 a longitudinal section of a mixer,

Fig. 2 the inlet end of the mixer,

Fig. 3 a longitudinal section of a cartridge,

Fig. 4 is a plan view of the cartridge according to Fig. 3 with spaced-apart outlets and annular bayonet means,

Fig. 5 a longitudinal section of a cartridge with two containers of different cross-sectional area, and

Fig. 6 shows a plan view of the cartridge of Fig. 5 with spaced-apart outlets and annular bayonet means;

Fig. 7-13 show a second embodiment of the invention with a connecting ring, where Fig. 7 shows a longitudinal section of a mixer,

Fig. 8 the inlet end of the mixer,

Fig. 9 a longitudinal section of a cartridge with spaced outlets and annular bayonet means,

Fig. 10 is a plan view of the cartridge according to Fig. 9 with a nose,

Fig. 11 is a plan view of a connecting ring,

Fig. 12 a section of the connecting ring according to Fig. 11, and

Fig. 13 shows a longitudinal section of a variant of the mixer according to Figs. 7 and 8 in connection with the cartridge according to Figs. 5 and 6 with containers of different cross-sectional areas;

Fig. 14-19 show a third embodiment of the invention with a locking ring permanently attached to the cartridge, whereby

Fig. 14 a longitudinal section of a cartridge with spaced outlets,

Fig. 15 is a plan view of the cartridge according to Fig. 14,

Fig. 16A is a mixer-side view of a locking ring to be attached to the cartridge,

Fig. 16B is a cartridge-side view of the locking ring according to Fig. 16A,

Fig. 17 a cross-section of the locking ring according to the line XVII-XVII in Fig. 16B and

Fig. 18 and 19 show two longitudinal sections at right angles to each other of a mixer connected to the cartridge according to Fig. 14, with the locking ring according to Fig. 16A-17 in the locked position

Fig. 20-25 show three embodiments of a closure cap for the cartridge, whereby Fig. 20-21 as a first embodiment shows a two-part closure cap in a longitudinal section and a view of the cartridge side,

Fig. 22-23 as a second embodiment a one-piece closure cap for use with a connecting ring in a longitudinal section as well as a view of the cartridge side, and

Fig. 24-25 shows, as a third embodiment, a one-piece closure cap for use with a locking ring attached to the cartridge in longitudinal section and a view of the cartridge side;

Fig. 26-28 show an embodiment of the invention with a ring-shaped bayonet lock on the rotatable mixer housing, whereby Fig. 26 shows a longitudinal section of a mixer attached to a partially shown cartridge,

Fig. 27 shows the inlet end of the mixer and Fig. 28 shows a plan view of the cartridge of Fig. 26 ;

Fig. 29-31 show a further embodiment of the invention with a ring-shaped bayonet closure on the cartridge, whereby Fig. 29 is a longitudinal section of a mixer attached to a partially shown cartridge,

Fig. 30 the inlet end of the mixer and

Fig. 31 shows a plan view of the cartridge of Fig. 29;

Fig. 32-34 show a further embodiment of the invention with a ring-shaped bayonet closure on the cartridge, whereby

Fig. 32 a longitudinal section of a mixer attached to a cartridge, which is shown in part,

Fig. 33 the inlet end of the mixer and

Fig. 34 shows a plan view of the cartridge of Fig. 32;

Fig. 35-37 show a further embodiment of the invention with a sector-shaped bayonet closure on the cartridge, whereby

Fig. 35 a longitudinal section of a mixer attached to a cartridge (partially shown),

Fig. 36 a top view of the cartridge according to Fig. 35 and

Fig. 37 shows the inlet end of the mixer;

Fig. 38-40 show a variant of the invention with a sector-shaped bayonet lock on the cartridge, whereby

Fig. 38 a longitudinal section of a mixer attached to a cartridge (partially shown),

Fig. 39 a top view of the cartridge according to Fig. 38 and

Fig. 40 shows the inlet end of the mixer;

Fig. 41-44 show a further embodiment of the invention with a connecting ring, wherein

Fig. 41 a longitudinal section of a mixer,

Fig. 42 a longitudinal section of a connecting ring,

Fig. 43 a top view of the connecting ring according to Fig. 42 and

Fig. 44 shows a longitudinal section of the mixer with the connecting ring attached to a partially shown cartridge;

Fig. 45-47 show a further embodiment of the invention with a sector-shaped bayonet lock on the mixer, whereby

Fig. 45 a longitudinal section of a mixer attached to a cartridge (partially shown),

Fig. 46 a top view of the cartridge according to Fig. 41 and

Fig. 47 shows the inlet end of the mixer;

Fig. 48-58 show several additional coding devices on both the cartridge and the mixer to prevent mutual contamination due to incorrect attachment of the mixer to the cartridge, whereby

Fig. 48 a top view of a cartridge as in Fig. 39, but with additional coding means,

Fig. 49 a cross-section of the inlet end of a mixer as in Fig. 38, but with additional coding means and

Fig. 50 the inlet end of the mixer according to Fig. 49,

Fig. 51 and 52 a variant of the coding means of the cartridge and the mixer,

Fig. 53 and 54 show a further variant of the coding means of the cartridge and the mixer,

Fig. 55 and 56 show a further variant of the coding means of the cartridge and the mixer, and

Fig. 57 and 58 show a further embodiment of the coding means of the cartridge and the mixer.

Fig. 1-2 show a mixer 1 with a mixer housing 2, a mixing spiral group 3, the mixer outlet 4 and a mixer inlet area 5 with two separate inlet parts 6 and 7, which are formed in one piece with a correctly aligned separating element 35 of the mixing spiral group. The mixer is connected to the cartridge by inserting the bayonet lugs 10, 11 of different widths into the bayonet sockets 19, 20 of different widths, pressing the mixer onto the cartridge and rotating the mixer housing 2 without the separate inlet parts 6 and 7 and the mixing spiral group 3 rotating with the separating element 35. In this embodiment, the separating element 35 serves as a separating agent for the separate supply of the two chemical components to the first divider 3D of the mixing spiral group 3.

The mixer housing is provided with longitudinal ribs 8 which extend to the larger diameter 9 of the mixer housing 2, and whose lateral ends form bayonet lugs 10 and 11 which interact with the bayonet mounts of the cartridge. As can be seen from Fig. 2, the two lugs are not the same width, but lug 10 is wider than lug 11. As explained below, the different widths of the lugs allow a coded alignment and fastening of the mixer to the cartridge.

The mixing spiral group 3 is connected to the separate inlet parts 6 and 7 and arranged in the housing in such a way that the housing itself is rotatable around the mixing spiral group with the connected inlet parts 6 and 7, which are arranged on the inlet side of the first mixing element 35, which in this embodiment serves as a separating means for the separate supply of the two components to the first divider 3D of the mixing spiral group 3.

According to Fig. 3, the cartridge 12 has two cylindrical containers of the same cross-sectional area for a dosing ratio of 1:1, which open into two separate, cylindrical and spaced-apart outlets 14 and 15. The outer shape of the spaced-apart outlets 14 and 15 of the cartridge corresponds to the respective shape of the inside of the separate inlets 6 and 7 of the mixer, see Fig. 1, so that the inlets of the mixer fit onto the outlets of the cartridge and a tight connection. A reverse arrangement, in which the inlet parts 6 and 7 fit into the outlet openings 14 and 15, is also possible.

According to Fig. 4, the bayonet means 16 on the cartridge comprise an annular bayonet socket 17 with two internal recesses 18 and a circular opening with two diametrically opposed bayonet recesses 19 and 20 of different widths, which receive the corresponding differently wide bayonet lugs 10 and 11 of the mixer (Fig. 1) and thus enable coded insertion of the mixer in a single position. The flange parts 21 next to the recesses serve as bayonet holders for securing the lugs of the mixer.

The ring-shaped bayonet means allow in particular a greater strength of the bayonet mounts and an increased structural rigidity of the outlet end of the cartridge when the hydraulic forces transmitted by the connected mixer during the discharge process are at their highest. This arrangement represents a significant improvement over known bayonet claws.

Fig. 5 and 6 show a variant of the embodiment shown in Fig. 1-4, in which the containers 22 and 23 of the cartridge 24 have different cross-sectional areas for dosing ratios other than 1:1.

In both cases described, the mixer can only be aligned for connection to the cartridge in such a way that the width of the bayonet lugs corresponds to the different widths of the bayonet sockets. the mixer is pressed onto the cartridge and as soon as the mixer is in place and the outlets and inlets are connected, the mixer housing 2 is rotated by 90º so that the bayonet lugs 10, 11 engage in the bayonet mounts 21 of the cartridge. This type of fastening prevents contamination of one component by the other at the transition between the mixer and the cartridge and still allows the mixer to be connected quickly in the coded position.

Fig. 7 and 8 show a second embodiment of a mixer 25 with a mixer housing 26, a mixing spiral group 3, a mixer outlet 4 and an inlet area 27 of the mixer. This mixer is attached to the cartridge 35 according to Fig. 9 using a separate connecting ring 31 according to Fig. 11 and 12. The connecting ring 31 has two bayonet tabs 32 and 33, which correspond to the bayonet recesses 19 and 20 of the bayonet fastenings 16 of the cartridge, as well as ribs 34 on the outer circumference to increase the grip.

In particular, it can be seen from Fig. 7 that the inlet area 27 of the mixer has two separate cylindrical inlet openings 28, 29, which are located on the inlet-side face of the first mixing element 35, which in this embodiment serves as a separating means in order to feed the two components separately to the first divider 3D of the mixing spiral group 3. A slot 30 ensures a coded alignment of the mixer with respect to a cartridge.

The cartridge 35 according to Fig. 9 and 10 corresponds to the cartridge 1 according to Fig. 1 with the exception that the bottom of the bayonet fastenings 16 has a nose 36 which corresponds to the slot 30 on the mixer, see Fig. 7 and 8, and allows a coded alignment of the mixer.

When connecting the mixer to the cartridge, the nose 36 of the cartridge engages the slot 30 in the inlet area 27 of the mixer. This coded connection not only ensures a single possible orientation, but also axial fastening of the mixer without rotation of the mixer housing, thus preventing contamination of one component by the other at the transition between the cartridge and the mixer.

Other coding means on the dispenser or cartridge and on the accessory are also possible in order to achieve a coded alignment of the accessory with the dispenser or cartridge, for example pins or projections of any kind which engage in a recess, a cavity or a slot.

Fig. 13 shows a mixer 38 which is connected to a cartridge 75 with containers 76 and 77 of different cross-sectional areas and represents a variant of the embodiment according to Fig. 5-12, in that the inlet area 37 of the mixer 38 has separating means arranged in the mixer itself with separate inlet chambers 39 and 40 of different cross-sectional areas, which are arranged within a total diameter which is smaller than that of the cartridge outlet with the corresponding through-openings for the two chambers.

The above-mentioned separating agents serve to separately feed the component streams to the first divider 3D of the mixing spiral group 3. The separating agents can have chambers of the same cross-sectional areas or a cross-sectional ratio other than 1:1. The cross-sectional ratio of the separation chambers can, for example, be adapted to the cross-sectional areas of the containers 76 and 77 of the cartridge 75 or to their dosing ratio. The separating agents are firmly connected to the mixing spiral group 3.

The cartridge 75 has the same fastening means as in Figs. 5 and 6, and the mixer 38 is attached to the cartridge with the connecting ring 31.

The third embodiment of the invention according to Fig. 14-19 has a locking ring 51 which is snapped onto the cartridge 42 and remains permanently connected to it. The cartridge 42 has two cylindrical containers 43 of equal cross-sectional area, two spaced-apart outlets 45 and 46, and a holder 47 for attaching a locking ring and for limiting the rotational movement of the same. The holder 47 has the shape of a circular edge 49 with two equally wide tabs 44, which runs around the two spaced-apart outlets, and whose base has an undercut section 48.

The locking ring 51, see Fig. 16A, 16B and 17, is snapped onto the circular edge 49 of the holder on the cartridge and remains connected to it. The locking ring 51 has an inner circular groove 52 which forms a cartridge-side edge 53 and a mixer-side edge 54. The cartridge-side edge 53 has two opposite recesses 55, the width of which corresponds to that of the tabs 44 of the holder, the inner diameter of the cartridge-side edge 53 is slightly smaller than the outside diameter of the circular edge 49 of the holder on the cartridge. To snap the locking ring onto the cartridge, the ring is placed so that the recesses of the cartridge-side edge lie over the tabs of the holder, whereupon the ring is pressed onto the cartridge and the remaining part of the cartridge-side edge of the locking ring slides into the circular undercut section 48 of the holder. The locking ring also has a toothing 58 for better handling.

The mixer-side edge 54 has two opposing recesses 56 and 57 of different widths, which correspond to the tabs 10 and 11 of the mixer, so that it can be inserted in only one position. These two recesses are offset by 90º from the recesses 55 of the cartridge-side edge. When the mixer 59 is connected to the locking ring of the cartridge and the cartridge with the locking ring is rotated by 90º, the remaining inner flange sections of both the cartridge-side edge and the mixer-side edge serve as bayonet mounts, which enclose and securely hold the tabs 10 and 11 of the mixer and the tabs 44 of the mount on the cartridge.

Fig. 18 and 19 show the cartridge 14 according to Fig. 14 with a mixer 59 which, similar to the mixer 1 according to Fig. 1, has a mixer inlet area 5 with separate female inlets 6 and 7, but the housing 60 is not rotatable about the inner parts formed integrally with the mixer and has no ribs 8, while the bayonet lugs 10 and 11 are of different widths. Fig. 18 shows the mixer inserted into the locking ring 51 with the locking ring closed, and Fig. 19 shows a section along the line IXX-IXX in Fig. 18 of the same arrangement at 90º. Of course, a mixer with separate inlet chambers can also be connected in the same way, and the cartridge can have containers with different cross-sectional areas as in Fig. 5.

The system for coded fastening of the mixer described above also allows coded fastening of closure caps, adapters, etc., thus avoiding mutual contamination and allowing the closure caps to be used several times.

The first embodiment of a closure cap 61 with coding means according to Fig. 20 and 21 consists of two parts. The insert 62 has two male plugs 63 which close the outlets of a cartridge, for example the spaced-apart outlets 14 and 15 of the cartridge 12 according to Fig. 3.

This embodiment shows how the sealing effect of a plug in the cartridge outlet can be improved by providing the male plug 63 with a second edge 63A that encloses the female cartridge outlet. Of course, the use of such a male plug with a peripheral edge is not limited to this example.

The rotating attachment has two bayonet lugs 64 and 65 of different widths, which are connected to the lugs 10 and 11 of the mixer 1 according to Fig. 1. For better handling, the outer surface of the cap is provided with ribs 66 and an edge 70. The coded fastening of the closure cap to the cartridge 12 or 24 is carried out analogously to the fastening of the mixer 1.

The second embodiment according to Fig. 22 and 23 consists of a closure cap 67 with coding means, which also has two plugs 68 for closing the outlets of a cartridge, for example the spaced-apart male outlets 14 and 15 of the cartridge 35 according to Fig. 9, as well as a slot 69 corresponding to the slot 30 of the mixer 25 for alignment with the nose 36 of the cartridge 35. The outer surface of the cap is also provided with an edge 70 for better handling. The cap is attached to the cartridge 35 with the help of the connecting ring 31 according to Fig. 11 in the same way as the mixer 25 is attached to this cartridge.

The third embodiment of a closure cap 71 with coding means according to Fig. 24 and 25 is similar to the second and has two plugs 72 for closing the spaced-apart outlets 45 and 46 of the cartridge 42 according to Fig. 14. Fig. 25 shows the side of the closure cap facing the cartridge with two bayonet lugs 73, 74 of different widths, which are diametrically opposite one another on the cartridge-side edge. This closure cap is fastened with the locking ring 51 according to Fig. 18 and 19 and also has an edge 70 for better handling.

The ring-shaped cartridge holder offers improved strength in the outlet area and a Known bayonet mounts improved hold of the bayonet lugs.

If only the advantages of the ring-shaped bayonet fitting are to be used and no coded fastening is necessary, the bayonet lugs 10 and 11, 32 and 33, 64 and 65 of the mixer, the closure cap or the accessory and the corresponding bayonet recesses 19 and 20 of the holder on the cartridge or 56 and 57 of the locking ring 51 can be of the same width. This also applies if more than two lugs and corresponding recesses are used, for example three or four each.

Fig. 26-28 show a further embodiment of the invention with a bayonet arrangement reversed from the bayonet arrangement of the mixer and the cartridge according to Fig. 1-4. Fig. 26 shows a mixer 80, the mixer housing 81 of which has a mixer outlet 4 and a mixer inlet area 82 with two separate inlet parts 83 and 84, followed by a separating element 35, which in turn is firmly connected to a correctly aligned divider 3D of the mixing spiral group 3. This mixer is also connected to the cartridge by aligning the coding means of the mixer and the cartridge and pressing the mixer onto the cartridge, whereupon the mixer housing 81 of the mixer is rotated around the integrated internal parts of the mixer with the separate female inlets 83 and 84, the separating element 35 and the mixing spiral group 3. The mixing spiral group or a part thereof could also be pre-aligned and permanently installed in the mixer housing.

The mixer housing 81 has longitudinal ribs 8 which extend to the larger diameter 85. The wider end of the mixer housing has a nose 89 which forms a very visible coding means for the alignment and insertion into the slotted claw 90 of the cartridge. The mixer housing 81 also has fastening means in the form of an annular bayonet socket 100 with two bayonet flange parts 94 and 95 which serve as a bayonet holder and have two recesses 96 and 97 in between.

The cartridge 86 has two cylindrical containers 87 and 88 with spaced outlets 14 and 15 which fit sealingly into the inlet area 82 of the mixer. The front 86A of the cartridge has a slotted claw 90 and a guide 91 which prevents incorrect insertion of the mixer, and two bayonet flanges 92 and 93 with tapered, wedge-shaped edges whose width corresponds to the recesses 96 and 97 of the mixer, with recesses 98 and 99 of smaller diameter in between.

To attach the mixer to the cartridge, the inlet portion 82 of the mixer is inserted into the cartridge by aligning the nose 89 of the mixer housing with the slotted claw 90, with the portion 91 serving as a guide, while the mixer inlets are slid onto the spaced apart male outlets 14 and 15 of the cartridge so that the flanges 92 and 93 of the cartridge align with and engage the recesses 96 and 97 of the mixer. As the mixer housing is rotated, the bayonet flange portions 94 and 95 of the mixer slide against the flanges 92 and 93 of the Cartridge, which presses the mixer 80 against the front 86A of the cartridge due to its tapered, wedge-shaped underside. During attachment of the mixer to the cartridge, the mixer housing 81 rotates 90º around the fixed internal parts of the mixer.

The bayonet arrangement described above, in which the ring-shaped bayonet socket is arranged on the accessory part as in the example of the rotating mixer housing, can also be used analogously in the previous embodiments and in closure caps, with the exception of the solutions with a locking ring. Other coding means on the outer circumference of the mixer housing are possible or can be implemented in the form of different widths of the recesses and the corresponding flange parts.

Figs. 29-31 show another embodiment in which the mixer has male inlet parts which fit sealingly into the female cartridge outlets.

Fig. 29 shows a mixer 101, the mixer housing 102 of which has a mixer outlet 4 and a mixer inlet area 103 with two separate male inlets 104 and 105, followed by a separating element 35, which in turn is firmly connected to a correctly aligned first divider 3D of the mixing spiral group 3. This mixer is also connected to the cartridge by aligning the coding means of the mixer with those of the cartridge and pressing the mixer onto the cartridge, whereupon the mixer housing 102 of the mixer is rotated around the integrated internal parts of the mixer with the separate male inlets 104 and 105, the separating element 35 and the mixing spiral group 3. The mixing spiral group or a part of it could also be pre-aligned and permanently installed in the mixer housing.

The mixer housing 102 has longitudinal ribs 8 which extend to the larger diameter 106, the lateral ends of which form bayonet lugs 107 and 108, see Fig. 30, which cooperate with the bayonet holders of the cartridge. The bayonet lugs are not the same width, but the lug 107 is wider.

The cartridge 109 (Fig. 31) has two cylindrical containers 110 and 111 with spaced apart female outlets 112 and 113 which fit sealingly onto the male inlets 104 and 105. The front 114 of the cartridge has the same bayonet means 16 as the cartridge according to Fig. 4 with an annular bayonet mount.

Figures 32-34 show another embodiment in which the mixer has a male and a female inlet part which fit into or onto the female and male cartridge outlets respectively.

Fig. 32 shows a mixer 115, the mixer housing 116 of which has an outlet 4 and a mixer inlet area 117 with a separate male inlet 118 and a separate female inlet 119, followed by separate chambers 117A and 117B, which in turn are firmly connected to a correctly aligned first divider 3D of the mixing spiral group 3. This mixer is also connected to the cartridge by pressing the mixer onto the cartridge and the mixer housing 116 around the integrated internal parts of the mixer with the separate male inlets 118 and 119, the separate chambers 117A and 117B and the mixing spiral group 3. The mixing spiral group or a part thereof could also be pre-aligned and permanently installed in the mixer housing.

The mixer housing 116 has longitudinal ribs 8 which extend to the larger diameter 120, the lateral ends of which form bayonet lugs 121 and 122, see Fig. 33, which cooperate with the bayonet holders of the cartridge. The bayonet lugs are not the same width, but the lug 121 is wider.

The cartridge 123 (Fig. 31) has two cylindrical containers 124 and 125 with a spaced male outlet 126 and a spaced female outlet 127, which fit sealingly into the separate female inlet 199 and onto the separate male inlet 118 of the mixer, respectively. The front 128 of the cartridge (Fig. 34) has the same bayonet means 16 as the cartridge according to Fig. 4 with an annular bayonet socket.

The designs according to Fig. 35-43 have sector-shaped bayonet sockets instead of ring-shaped ones. The operation and fastening of the accessory are the same as in the previous designs, and the three different designs of the bayonet means are therefore shown using an example of a mixer and a cartridge. Of course, the sector-shaped bayonet socket or similar means can also be used for all other designs.

Fig. 35 shows an arrangement of a mixer and a cartridge, the mixer 130 having a mixer housing 131 with a mixer outlet 4 and a mixer inlet area 132 with two separate male inlets 133 and 134, followed by separation chambers 133A and 134A, which in turn are firmly connected to a correctly aligned first divider 3D of the mixing spiral group 3. This mixer is also connected to the cartridge by pressing the mixer onto the cartridge and rotating the mixer housing 131 around the integrated internal parts of the mixer with the separate male inlets 133 and 134, the separate chambers 133A and 134A and the mixing spiral group 3. The mixing spiral group or a part thereof could also be pre-aligned and firmly installed in the mixer housing.

The mixer housing 131 has longitudinal ribs 8 which extend to the larger diameter 135, the lateral ends of which form bayonet lugs 136 and 137, see Fig. 37, which cooperate with the sector-shaped bayonet sockets 145, 146, which serve as bayonet holders of the cartridge. The bayonet lugs have the same width and have a web 136A and 137A at the end, which reinforces the lug, serves as a stop and at the same time ensures that the mixer can be rotated and fastened in only one direction. The top of the lugs can have inclined surfaces which reinforce the closing effect under axial load. Corresponding inclined surfaces can also be present on the corresponding side of the sector-shaped bayonet sockets of the cartridge.

The cartridge 138 has two cylindrical containers 139 and 140 with spaced apart female outlets 141 and 142, into which the male inlets 133 and 134 engage in a sealing manner. The front side 143 of the cartridge (Fig. 36) has bayonet means with sector-shaped bayonet sockets 145, 146, which serve as claws and are closed on one side by webs 145A and 146A, which are connected to the front wall of the cartridge and stiffen the bayonet claws and increase their strength. The recesses 149 and 150 between the sector-shaped bayonet sockets allow the introduction of the bayonet lugs 136 and 137 of the mixer.

In this embodiment, the bayonet lugs and the sector-shaped bayonet sockets are approximately the same width. Orientation is achieved by other coding means on the mixer and on the cartridge. On the front 143 of the cartridge, a T-shaped elevation is arranged between the two outlets, and on the inlet side of the mixer, a similar elevation 152 is arranged off-center between the mixer inlets, see Fig. 36 and 37.

The two T-shaped coding means allow the mixer to be connected in one direction only, since the mixer inlets cannot be inserted into the cartridge outlets if the mixer is placed on the cartridge in such a way that the two elevations lie on top of each other, and contact between the cartridge outlets and the mixer inlets or plugs or closure means is also excluded, which makes mutual contamination and the connection of the mixer or the accessory impossible. Of course, the elevations can be designed in a different way than T-shaped, for example as a keyway into which the mixer provided with a corresponding elevation can only be inserted in a certain position, or Two keyways of different shapes and corresponding elevations could be provided.

Proper alignment may be assisted by visual coding means, such as a mark 153 on the outlet end of the cartridge and a mark 154 on the bayonet lug 137 of the mixer on the same side as the coding bump.

In the embodiment according to Fig. 38-40, the correct alignment is achieved by recesses of different widths between the tabs. Fig. 38 shows an arrangement of a mixer and a cartridge, the mixer 155 having a mixer housing 156 with a mixer outlet 4 and built-in internal mixer parts including two separate inlets 157 and 158 which open into a disc-shaped flange and subsequently into separate chambers 157A and 158A, which in turn are firmly connected to a correctly aligned first divider 3D of the mixing spiral group 3. This mixer is also connected to the cartridge by pressing the mixer onto the cartridge and rotating the mixer housing 156 around the built-in internal parts of the mixer. The mixing spiral group or a part of it could also be pre-aligned and permanently installed in the mixer housing.

The mixer housing 156 is provided with longitudinal ribs 8 which extend to the larger diameter 159, the lateral ends of which form bayonet lugs 160 and 161, see Fig. 40, which cooperate with the sector-shaped bayonet holders of the cartridge. From Fig. 38 and from Figs. 13, 32, 35 and 45 it can be seen that the inlet end of the mixer housing has not only one extended cylindrical section, but two, namely, for example, the section 159 at the inlet, which receives and seals the separate inlets 157, 158, followed by the second section 159A, which has a medium diameter and receives and seals the separating means 157A, 158A. The bayonet lugs are of the same width, but the spaces or recesses 194, 195 between them are different according to the different widths of the sector-shaped bayonet sockets of the cartridge.

The bayonet tabs 160, 161 can each have a web 167 (Fig. 40) on the back of the mixer inlet, which reinforces the tab and serves as a stop to limit rotation in one direction so that the mixer cannot be installed displaced by 180º from the correct orientation. The top of the tabs can have inclined surfaces (not shown) which reinforce the closing and sealing effect under axial forces. Corresponding inclined parts (not shown) can also be present on the corresponding side of the sector-shaped bayonet sockets of the cartridge.

The cartridge 162 has two cylindrical containers 163 and 164 with two spaced apart female outlets 165 and 166 which sealingly receive the male inlets 157 and 158. The front 168 of the cartridge (Fig. 39) has bayonet means with two sector-shaped bayonet sockets.

According to Fig. 39, the bayonet means on the cartridge comprise two diametrically opposed sector-shaped bayonet sockets 169 and 170, which serve as bayonet claws for the bayonet lugs of the mixer, the sockets being of different widths and socket 169 being wider. The two recesses 171 and 172 between the sockets allow the insertion of the corresponding bayonet lugs 160 and 161 of the mixer into the sector-shaped bayonet sockets 169, 170. As this figure shows, the passages of the bayonet sockets 169 and 170 are initially straight, but curved from the middle onwards in order to offer more support against axial forces of the bayonet lugs.

The passages may also be fully curved and have no straight sections, and fully or partially curved passages may also be used with ring-shaped bayonet mounts.

In order to avoid any kind of unintentional contact between an inlet or inlets of the mixer or an accessory and an inlet or inlets of the cartridge due to mutual jamming due to incorrect alignment, the wider recess 195 of the mixer has a V-shaped nose 192 which corresponds to a V-shaped notch 193 in the wider socket 169 and prevents the mixer from being inserted into the narrower bayonet socket 170.

In this embodiment too, the correct alignment can be supported by visual coding means, for example by the marking 153 on the cartridge and the marking 154 on the corresponding tab.

If a directional attachment of the mixer to the cartridge 162 is not necessary, the recesses between the lugs of the mixer must be wide enough to allow they fit on the wider cartridge holder, while the visual coding means remain the same as described above.

Fig. 41-44 show a similar arrangement to that of Fig. 38-40, with the exception that the mixer 200 is separated from the connecting ring 196, which is rotated around the stationary mixer during final closing, with the bayonet lugs 160A, 161A engaging the sector-shaped bayonet sockets 169, 170 of the cartridge 162.

Fig. 41 shows the mixer 200 with the outlet 4 and the housing 201 with the mixing coil group 3 aligned with the inlet part 197 which is only partially located in the mixer housing and has separate male inlets 157B, 158B and separate chambers 157C, 158C. The inlet area 197 is held and sealed in the mixer housing by a bead 198. The connecting ring 196 is pre-assembled and already aligned with the inlet area 197 of the mixer by a groove 199 (Fig. 41) of the connecting ring 196. Fig. 43 shows the connecting ring 196 with the coded bayonet lugs 160A, 161A, recesses 194A, 195A, visual coding means 154 and the V-shaped guide nose 192A of the embodiment according to Fig. 40.

Fig. 44 shows the mixer 200 and the cartridge 162 in the assembled state. Before assembly, the connecting ring can be pre-assembled on the mixer with sufficient tension to hold the two parts in the correct mutual alignment for the initial mating of the mixer inlets 157B, 158B and the cartridge outlets 165, 166 of the cartridge according to the visual and mechanical coding means before the connecting ring is finally closed. In this embodiment, the mixer housing 201 does not rotate around the inlet area of the mixer 197 and the mixing spiral group 3 during connection.

In the design according to Fig. 45-47, the sector-shaped bayonet sockets are arranged on the mixer and the bayonet lugs on the cartridge, analogous to the design according to Fig. 26-28.

Fig. 44 shows an arrangement of a mixer and a cartridge, the mixer 173 having a mixer housing 174 with a mixer outlet 4 and a mixer inlet area 175 with the built-in internal mixer parts including two separate male inlets 176 and 177 opening into separate chambers 176A and 177A, which in turn are firmly connected to a correctly aligned first divider 3D of the mixing spiral group 3. This mixer is also connected to the cartridge by pressing the mixer onto the cartridge and rotating the mixer housing 174 around the separate male inlets 176 and 177, the separate chambers 176A and 177A and the mixing spiral group. The mixing spiral group or a part of it could also be pre-aligned and permanently installed in the mixer housing.

The mixer housing 174 is provided with longitudinal ribs 8, which extend to the larger diameter 178, the lateral ends of which form diametrically opposed, sector-shaped bayonet sockets 179 and 180, see Fig. 43, which serve as claws, each of which is closed on one side by a web 179A or 180A, which is attached to the wall of the mixer and stiffens and reinforces the bayonet claws. The recesses 181 and 182 between the sockets allow the introduction of the bayonet lugs of the cartridge, which cooperate with the bayonet holders of the mixer.

The cartridge 183 has two cylindrical containers 184 and 185 with two spaced apart female outlets 186 and 187 which sealingly receive the separate male inlets 176 and 177. The front 188 of the cartridge (Fig. 42) has bayonet means consisting of two sector-shaped bayonet tabs 190 and 191 which are of equal width and each have a web 190A and 191A at the end which reinforces the tab and acts as a stop to limit rotation in one direction so that the mixer cannot be fitted 180º out of alignment. The top of the tabs may have inclined surfaces (not shown) which reinforce the closing effect when axial force is applied. Corresponding inclined sections (not shown) may also be present on the corresponding side of the sector-shaped bayonet sockets of the mixer.

The tabs and the recesses are approximately the same width, so that orientation is carried out by other coding means on the mixer and on the cartridge. On the front side 188 of the cartridge, the T-shaped elevation 151 is therefore arranged between the two spaced-apart female outlets, and on the inlet side of the mixer, an elevation 152 of a similar shape is arranged off-center between the mixer inlets, see Fig. 46 and 47.

The two T-shaped coding means allow the mixer to be connected in only one position, since the separate male inlets of the mixer cannot be inserted into the spaced-apart female outlets of the cartridge when the mixer is placed on the cartridge so that the two projections are on top of each other, and contact between the cartridge outlets and the mixer inlets is also excluded, making mutual contamination and connection of the mixer or accessory impossible. Of course, the projections can be designed in a different way than T-shaped.

In certain cases, the T-shaped coding projection does not guarantee 100% protection against mutual contamination. Fig. 48-58 show various coding projections which are intended to ensure that mutual contamination is not possible even if the mixer is inserted into the cartridge in the wrong direction. For this purpose, the coding projections are arranged in such a way that no tilting movement can occur around the connecting axis between the centers of the two outlets of the cartridge, which could cause contamination.

The cartridge 210 according to Fig. 48 is similar to the cartridge 162 according to Fig. 39 and has the same two cylindrical containers with two spaced apart female outlets 165 and 166 which receive and seal the separate male inlets 157 and 158. On the front 211 of the cartridge are arranged the bayonet means which have two diametrically opposed sector-shaped bayonet sockets 169 and 170 which serve as bayonet claws for the bayonet lugs of the mixer , the sockets being of different widths and the socket 169 being wider. The two recesses 171 and 172 between the sockets allow the insertion of the corresponding bayonet lugs 160 and 161 of the mixer into the sector-shaped bayonet sockets 169, 170. As this figure shows, the passages of the bayonet sockets 169 and 170 are initially straight, but curved from the middle onwards in order to offer more support against axial forces of the bayonet lugs.

Compared to the cartridge according to Fig. 39, the front of this cartridge additionally has a coding elevation 212 consisting of two pins 213 arranged symmetrically to the connecting axis between the centers of the outlets, but asymmetrically to the transverse center axis, i.e., for example, next to an outlet.

Fig. 49 shows a mixer 214 similar to the mixer 155 according to Fig. 38 with a mixer housing 156, the outlet 4 and the built-in internal mixer parts including two separate inlets 157 and 158 which open into separate chambers 157A and 158A, which in turn are firmly connected to a correctly aligned first divider 3D of the mixing spiral group 3. This mixer is also connected to the cartridge by pressing the mixer onto the cartridge and rotating the mixer housing 156 around the built-in internal parts of the mixer. The mixing spiral group or a part thereof could also be aligned in advance and firmly installed in the mixer housing.

The mixer housing 156 is provided with longitudinal ribs 8, which extend to the larger diameter 159, whose lateral ends form bayonet lugs 160 and 161, which cooperate with the sector-shaped bayonet mounts of the cartridge. This mixer 214 can also have two separate sections, namely, for example, the section 159 at the inlet, which receives and seals the separate inlets 157, 158, followed by the second section 159A, which has a medium diameter and receives and seals the separating means 157A, 158A. The bayonet lugs are of the same width, but the intermediate spaces or recesses 194, 195 are different according to the different widths of the sector-shaped bayonet mounts of the cartridge, and are also provided with webs.

In addition to the mixer according to Fig. 38, the inlet area of this mixer 214 has the same coding projections 215 as the cartridge, consisting of two pins 216, which are arranged corresponding to the pins 213 of the cartridge, so that the mixer can only be inserted in the correct position with respect to the other coding means, without the possibility of jamming if it is forcibly inserted in the wrong direction.

Fig. 51-58 show further arrangements and shapes of coding projections 212, 215, whereby the cartridge and the mixer are always the same as in Fig. 48-50 and only the coding projections are provided with reference numerals, while the remaining parts are the same.

Fig. 51 and 52 show a coding elevation 212 on the front of the cartridge consisting of two strips 217, which are symmetrical to the transverse center axis of the cartridge, but asymmetrical to the connecting axis between the centers the outlets. The two strips 218 of the mixer inlet part are arranged opposite those of the cartridge in such a way that the mixer can be inserted and secured in only one position.

Figures 53 and 54 show a coding projection 212 on the front of the cartridge consisting of two D-shaped projections 219 which are arranged symmetrically to the transverse central axis of the cartridge, but asymmetrically to the connecting axis between the centers of the outlets, with the straight surfaces facing the same side. The two D-shaped projections 220 of the mixer inlet part are arranged opposite those of the cartridge in such a way that the mixer can be inserted and secured in only one position.

Figures 55 and 56 show a coding projection 212 on the cartridge front consisting of a male pin 221 and a female pin 222, which are arranged symmetrically. The male pin 223 and the female pin 224 of the mixer inlet part are arranged opposite those of the cartridge in such a way that the mixer can be inserted and fastened in only one position.

Fig. 57 and 58 show a particularly effective coding elevation 212 on the front of the cartridge, consisting of a bar 225 on one side of the connecting axis between the centers of the outlets and two spaced-apart bars 226 on the other side of this axis, which are arranged symmetrically to the transverse center axis of the cartridge. The single bar 227 and the double bar 228 of the mixer inlet part are similar to those arranged opposite the cartridge in such a way that the mixer can be inserted and secured in only one position.

All of these coding projections effectively prevent the mixer from jamming when connecting it to the cartridge, thus preventing mutual contamination.

Proper alignment may be assisted by visual coding means, such as a mark 153 on the cartridge opposite the bump and a mark 154 on the mixer tab adjacent to the coding bump.

From the embodiment according to Figs. 32-34 it is clear that the mixer inlets and the cartridge outlets can each be either female or male, and that the mixer can have a female and a male inlet which fit onto or into the corresponding male or female outlet of the cartridge.

This latter arrangement provides an additional coding means, since only one position is possible for connecting the mixer or locking means. This combination of coded connection and coding means is independent of the type of fastening using a connecting ring, locking ring or with a rotating mixer housing.

The different width of the bayonet lugs is in itself a clear means of coding; however, marking the alignment by optical means such as different colours, a notch and a mark or a recess on a lug of the accessory and a corresponding lug on the bayonet means of the cartridge could be advantageous to enhance this effect. Either part of the coding means or the alignment itself can be marked.

In single-wall cartridges, such as that disclosed in US Patent No. 5,333,760, chemical migration through this single-wall separation barrier cannot be excluded and the separation at the cartridge outlets is therefore insufficient to prevent migration and, consequently, reaction in the cylinders during storage.

In particular, it is apparent from Figs. 5, 14, 26, 29, 32, 35, 38 and 41 that a one-piece cartridge consisting of two complete, preferably cylindrical containers, which are essentially separated from one another by an intermediate air gap L, see for example Fig. 32, is advantageous. This ensures complete chemical separation over the entire length of the container for the chemicals, from the feed pistons to the outlets, where a closure is fitted during storage. During discharge, the separation is maintained within the mixer up to the first divider 3D of the mixing spiral group.

However, the invention is not limited to containers which are separated from each other by an air gap, and is also suitable for cartridges with only one partition wall according to Fig. 3.

From the foregoing description it is clear that the connection of cartridge and accessory according to the invention is particularly suitable for cartridge containers which are Air gap essentially separates them from each other right down to the individual outlets, allowing a coded mutual alignment of outlets of the same or different sizes, without mutual contamination through rotation or accidental connection, whereby the separation is maintained beyond the transition to the mixer and well into the mixer, so that the spread of possible reactions and clumping of the components at the transition and back into the cartridge outlets is prevented. This combination also results in an optimized mixing performance, particularly but not exclusively for ratios deviating from 1:1.

Although the above description and the drawing of the cartridge embodiments refer to multi-component cartridges with adjacent containers, the teaching of the present invention is not limited to these, but can also be applied to cartridges with concentric or otherwise arranged and designed containers.

However, the principle of directional attachment ensures a correctly aligned connection of a mixer or accessory to cartridge outlets, since only one position of the mixer or accessory is possible, and at the same time prevents any mutual contamination if a mixer or a closure cap is connected to a cartridge several times.

Furthermore, all the mixer designs described above have the advantage that they consist of as few parts as possible and are compact, which means low injection costs This is possible because the entire inlet area, including the separating agent and the mixing spiral group, is made from one piece. The integrated design of these internal parts also ensures correct alignment and thus results in an optimal mixing effect.

If a relatively long mixing spiral group is used in the first embodiment according to Fig. 1 and the friction between this group and the housing should lead to problems during rotation, it may be advantageous to separate part or the entire mixing spiral group from the separating means in the inlet area, so that part or the entire mixing spiral group is firmly connected to the housing and thus rotates with the housing during attachment of the mixer to the cartridge.

In this case, the front edge of the first element of the mixing spiral group or part of it must be firmly installed in the housing in a pre-aligned position, viewed from the mixer inlet towards the mixer outlet. This ensures that after the housing is rotated to attach the mixer to the cartridge, the spiral is correctly aligned so that the material flows when they exit the separating means or the first spiral group connected to the separating means are divided equally by the front edge of the first element of the spiral group or the part of it firmly connected to the housing in order to achieve an optimized mixing effect.

Of course, instead of cylindrical inlets and outlets, D-shaped or other shaped inlets and outlets and those with different sizes possible. Furthermore, the same principle is also suitable for a dispenser or a cartridge for more than two components.

Claims (30)

1. Dispensing arrangement, consisting of a multi-component dispensing device or a multi-component cartridge, in particular a two-component cartridge, with first bayonet fastening means, and an accessory, in particular a mixer and/or a closure means, with second bayonet fastening means, wherein one of the two bayonet fastening means has bayonet tabs, which can be inserted into corresponding claws of the other bayonet fastening means, characterized in that the first bayonet fastening means (16, 51) on the dispensing device or on the cartridge (12, 24, 35, 42, 75, 86, 109, 138, 162, 183, 210) and the second bayonet fastening means on the accessory or on the mixer (1, 25, 38, 59; 61, 67, 71, 80; 101, 130, 155, 173, 214) have means for the coded alignment of the accessory or the mixer with the dispenser or the cartridge. 2. Arrangement according to claim 1, characterized in that the means for coded alignment have recesses (19, 20; 56, 57, 171, 172) and bayonet lugs (10, 11, 32, 33; 64, 65, 73, 74, 107, 108, 160, 161) of different widths, so that the bayonet lugs (10, 11; 32, 33; 64, 65; 73, 74, 107, 108, 160, 161) of the accessory or cartridge can only be inserted in one specific position with respect to the recesses (19, 20; 56, 57, 171, 172) of the ring-shaped or sector-shaped bayonet fastening means. are. 3. Arrangement according to claim 1, characterized in that the means for coded alignment consist in that the mixer (115) has a male inlet (118) and a female inlet (119) and the cartridge (123) has a matching female outlet (127) and a matching male outlet (126). 4. Arrangement according to claim 1, characterized in that the means for coded alignment consist in that the mixer has inlets of different sizes or different cross-sectional areas and the dispensing device or the cartridge has corresponding outlets of different sizes or different cross-sectional areas. 5. Arrangement according to one of claims 1 to 4, characterized in that the inlet side of the accessory (130, 173, 214) and the front of the dispensing device or the cartridge (143, 188) further have coding elevations (152, 215; 151, 212) which are arranged in such a way that incorrect alignment and mutual contact of the inlets and outlets is excluded when connecting the cartridge outlets to the inlets of the accessory. 6. Arrangement according to claim 5, characterized in that the coding elevations (152, 215; 151, 212) comprise either one elevation (152, 151) on each side or at least one elevation on the inlet side of the accessory and at least one elevation and/or depression on the front of the cartridge, or two elevations on each side, the two elevations (213, 216; 21'7, 218; 219, 220) being the same on both sides and arranged asymmetrically to one of the two central axes of the two sides and/or the elevations (221, 222, 223, 224; 225, 226, 227, 228) being unequal. 7. Discharge arrangement according to one of claims 1 to 6, characterized in that one of the two bayonet fastening means has sector-shaped or completely ring-shaped bayonet mounts (17, 51) with at least two bayonet recesses (19, 20; 56, 57; 96, 97) and bayonet holders (21; 94, 95) arranged next to them, and in that the other bayonet fastening means has at least two bayonet lugs (10, 11; 32, 33; 64, 65; 73, 74; 107, 108; 92, 93) corresponding to the recesses. 8. Arrangement according to one of claims 1 to 7, characterized in that the mixer has a mixing spiral group (3) with separating means (38) and inlets (6, 7; 28, 29; 83, 84; 104, 105; 118, 119; 133, 134; 157, 158; 176, 177), the mixing spiral group, the separating means and the mixer inlets being aligned with one another and arranged in the mixer housing (2, 26, 60, 81, 102, 116, 131, 156, 174) in such a way that the mixer housing can be rotated about the built-in internal parts of the mixer when the mixer is connected to the dispensing device or the cartridge, the bayonet lugs (10, 11; 107, 108; 136, 137; 160, 161; 179, 180) or bayonet sockets (100) are arranged on the inlet side of the housing. 9. Arrangement according to one of claims 1 to 8, characterized in that the means for coded alignment comprise at least one nose, a pin or a projection and/or a slot, a recess or a depression, in particular a nose (89) on the mixer housing (81) which only engages in a slotted claw (90) of the cartridge (86) in a specific position. 10. Arrangement according to claim 1, wherein the mixer or the accessory (25, 38; 67) is connected to the dispensing device or the cartridge (35, 75) via a connecting ring (31), characterized in that the means for coded alignment have at least one nose, a pin or a projection and/or a slot, a recess or a depression, in particular a slot (30; 69) and/or a nose (36) on the accessory, which interacts with a corresponding counterpart or counterparts on the dispensing device or on the cartridge (35, 75). 11. Arrangement according to claim 1, characterized in that the bayonet fastening means (51) on the dispensing device or on the cartridge have a locking ring (51) which is rotatably fastened by bayonet means to a fastening means (47) of the dispensing device or the cartridge (42), while the recesses (56, 57) of the bayonet fastening for the tabs (10, 11; 73, 74) of the mixer or the accessory and the bayonet recesses (55) for connection to the dispensing device or on the cartridge are arranged offset by approximately 90° and are axially spaced from one another. 12. Arrangement according to one of claims 1 to 11, characterized in that the mixer (1, 25, 38, 59, 80, 130, 155, 173) has a housing (2, 60, 81, 131, 156, 174), a mixing spiral group (3), an inlet area (5, 27, 37, 82) with a separate inlet (6, 7; 83, 84; 133, 134; 157, 158; 176, 177) for each outlet of the dispensing device or the cartridge, and the dispensing device or the cartridge (12, 24, 35, 42, 75, 86, 138, 162, 183) has at least two containers (13; 22, 23; 76, 77; 43; 87, 88; 139, 140; 163, 164; 184, 185) and/or spaced-apart outlets (14, 15; 45, 46; 141, 142; 165, 166; 186, 187) for each component, wherein the inlet region (5, 27, 37, 82) of the mixer is provided with inlet parts with separating means (35; 39, 40; 133A, 134A; 157A, 158A; 176A, 177A) which also separate the components according to the individual inlets, and wherein the mixing spiral group (3) and the inner parts of the inlet region (5, 27, 37, 82) are arranged in such a way that when the mixer is tightly connected to the cartridge, the inlets (6, 7, 83, 84) of the Mixer inlet area and the separating means (35; 39, 40) remain aligned with the corresponding, matching outlets (14, 15; 45, 46) of the cartridge and with the first divider (3D) of the first mixing spiral group (3) so that the liquid streams are separated into equal parts when leaving the separating means from the front edge of the first mixing spiral (3D). 13. Arrangement according to claim 12, characterized in that the parts of the mixer inlet area (5, 27, 37, 82) including the inlet parts, the separating means (35; 39, 40) and the mixing spiral group (3) are aligned and installed so as to be firmly connected to one another. 14. Arrangement according to one of claims 1 to 13, characterized in that, viewed from the mixer inlet in the direction of the mixer outlet, the first element (35) of the mixing spiral group (3) is arranged such that it serves as a separating means for maintaining the component separation. 15. Arrangement according to claim 10, characterized in that the separating means in the mixer inlet area consist of separate chambers (39, 40, 117A, 117B; 133A, 134B; 157A, 158A; 176A, 177A) which open at the separating element (3D) of the mixing spiral group (3). 16. Arrangement according to one of claims 1 to 15, characterized in that the mixer housing and all internal parts are firmly assembled and are attached to the dispensing device or to the cartridge (42) with a connecting ring (31). 17. Arrangement according to one of claims 1 to 15, characterized in that the locking ring (51) is connected to the dispensing device or to the cartridge (42) and then to the mixer housing, and that all internal parts are firmly assembled and are connected to the locking ring (51) and the cartridge (42). 18. Arrangement according to one of claims 1 to 17, characterized in that the outlets (14, 15; 45, 46; 141, 142; 165, 166; 186, 187) of the dispensing device or cartridge (12, 24, 35, 42, 75, 86, 138, 162, 183) are spaced apart from one another, individually formed and preferably essentially separated from one another by an air gap (L) or are arranged next to one another, and that they are cylindrical or approximately D-shaped and have the same or different cross-sectional areas. 19. Arrangement according to one of claims 1 to 18, characterized in that the inlets of the mixer or the accessory part are male (133, 134; 157, 158; 176, 177) or female (6, 7; 83, 84) or mixed (118, 119) and have the same or different cross-sectional areas. 20. Arrangement according to one of claims 1 to 16, characterized in that the inlets of the mixer or the accessory are male (133, 134; 157, 158; 176, 177) or female (6, 7; 83, 84) or mixed (118, 119) and have the same or different cross-sectional areas, and that the outlets of the cartridge or the dispensing device are correspondingly female (112, 113§141, 142; 165, 166; 186, 187) or male (14, 15; 45, 46) or mixed (126, 127) in order to provide a tight connection. 21. Arrangement according to claim 1, characterized in that the cartridge is in particular a one-piece multi-component cartridge (24, 42, 86, 109, 123, 138, 162, 183) consisting of at least two containers (22, 23; 43; 87, 88; 110, 111; 139, 140; 163, 164; 184, 185) with at least two outlets (14, 15; 45, 46; 112, 113; 126, 127; 141, 142; 165, 166; 186, 187) spaced apart from one another, which are essentially separated from one another by an air gap (L) therebetween. 22. Arrangement according to one of claims 1 to 21, characterized in that at least one of the parts to be connected has visual means for rapid alignment, in particular a marking (153) on one part and a corresponding visible marking (154) on the other part. 23. Arrangement according to one of claims 1 to 22, characterized in that the inlet end of the mixer (155) has a larger diameter than the intermediate part (159A), which in turn is larger than the diameter of the mixer tube (156), these diameters defining the separate Inlets (157, 158) which receive the separating means (157A, 158A) and the mixing spiral group (3), respectively, and seal the flange at the mixer inlets against the inlet end of the mixer housing and the separating means against the intermediate part of the mixer housing, wherein the separate inlets (157, 158), the separating means (157A, 158A) and the mixing spiral group (3) are aligned with one another and formed as one piece. 24. Arrangement according to claim 2 and 7, characterized in that a coding lug (192) is also provided on one of the recesses (195) on the flange of the mixer, the accessory or the closure means, which corresponds to a notch (193) in the corresponding sector-shaped bayonet holder (169). 25. Arrangement according to claim 24, characterized in that the sector-shaped bayonet holder (169, 170) on the cartridge has a passage for the bayonet lugs (160, 161) of the mixer, which is curved or consists of a straight and a curved part (169A, 170A). 26. Arrangement according to claim 1, characterized in that the two-part closure (61) for closing for the purpose of multiple reuse of a dispensing device or cartridge has a plug (63) for each of the outlets (14, 15) of the cartridge (12) and at least two bayonet tabs (64, 65) of different widths for directed insertion and for connection to the bayonet fastening means (16) of the cartridge. 27. Arrangement according to claim 26, characterized in that the plugs of the closure cap and the corresponding Outlets of the dispenser or cartridge have different sizes or cross-sectional areas. 28. Arrangement according to claim 1, characterized in that the closure (67) for multiple reuse of a dispensing device or a cartridge has a plug (68) for each of the outlets (14, 15) of the cartridge (24, 35) and as coding means at least one nose, a pin or a projection and/or a slot, a depression or a recess, in particular a corresponding slot (69) and/or a nose (36), which cooperates with a corresponding counterpart or counterparts on the cartridge in order to bring about a coded insertion of the closure into the cartridge, wherein the closure is fastened by a connecting ring (31). 29. Arrangement according to claim 1, characterized in that the closure (71) for multiple reuse of a cartridge has a locking ring (51), a plug (72) for each of the outlets (45, 46) of the cartridge (42) and at least two bayonet lugs (73, 74) of different widths for coded insertion and connection of the closure to the cartridge by means of the locking ring. 30. Arrangement according to one of claims 1 to 29, characterized in that the tabs (32, 33) are formed on a connecting ring (31), the connecting ring being rotatable relative to the housing of the accessory, mixer or closure to be connected.