EP2485852A1

EP2485852A1 - Discharge arrangement having a connecting device between a multi-component cartridge and an accessory part

Info

Publication number: EP2485852A1
Application number: EP10727335A
Authority: EP
Inventors: Wilhelm A. Keller
Original assignee: Medmix Systems AG
Current assignee: Medmix Switzerland AG
Priority date: 2009-10-06
Filing date: 2010-06-29
Publication date: 2012-08-15
Anticipated expiration: 2030-06-29
Also published as: EP2485852B1; WO2011041917A1; US9010578B2; CN102548668A; CN102548668B; US20120199607A1

Abstract

The invention relates to a discharge arrangement, comprising a two-component cartridge (2) and an accessory part, for example, a mixer (3). A connecting component (11, 12) of a connecting device is arranged on each of the two parts. In order to make it easier and simpler to attach the accessory part to and remove the accessory part from the cartridge, one connecting component (11, 12) comprises an insertion receptacle (20, 21) and the other connecting component (12, 11) comprises a connection part (5) that can be inserted therein in the longitudinal direction, wherein mutually corresponding engagement parts (6, 7, 25, 26) of a rotational guide placed at an incline in the longitudinal direction are provided on the inner circumference in the insertion receptacle (20, 21) and on the outer circumference on the connection part (5), along which rotational guide the connecting components (11, 12) can be rotated in one another over an effective connecting section after being inserted into one another and thus can be brought increasingly in or out of engagement with each other.

Description

Discharge assembly with a connection device between a multi-component Kärtusche and an accessory

Technical area

The present invention relates to a

Dispensing assembly with a cartridge or syringe for at least two components and an accessory, to each of which a connection component of a

Connecting device are arranged.

State of the art

From US-5 033 650 AI a dispensing assembly is known, which discloses a connecting device with bayonet locking parts, wherein the bayonet claws are beveled to axially guide the tongue-like projections of the bayonet fitting on the accessory and tighten this. However, the axial guidance is effective only during donning and not during peeling.

From EP 1 440 737 AI a dispensing assembly is known which comprises a two-component cartridge and a mixer or other accessory, each to each other

have complementary means for directional assembly and mutual fastening. A touchdown of the

Mischers on the cartridge in a predetermined orientation thereby fulfills the purpose of providing a clearly reproducible and thus particularly reliable connection. Said document proposes to provide as alignment means isolated outlets with different diameters on the cartridge and corresponding inlets on the mixer. Furthermore, there is a thread on the cartridge attached, whereby the mixer can be attached to the cartridge by means of a union nut, so that a secure seal of the mixer is ensured relative to the cartridge. Further, two are at the mixer

Coding strips provided, which are assigned to

Kodiereinschnitte on the cartridge are formally adapted, whereby an unwanted placement of a non-associated accessory is avoided. In addition to the mixer is provided as a further accessory, a closure cap with adapted plug, which is fastened by means of the same upper nut to the cartridge and by means of a

Trigger disc simply lifted off the cartridge and

can be removed.

WO 2008/113196 also discloses a

Discharge device comprising a two-component cartridge and an accessory, e.g. a mixer. The

Accessory has two inlets, which in

corresponding outlets of the cartridge can be inserted. For this, the accessory without rotary motion in axial

Direction attached to the cartridge. The housing of the accessory forms a latching connection with the

Cartridge. To release the locking connection, the housing of the accessory is rotated relative to the cartridge. In order to facilitate the removal of the accessory from the cartridge, lifting means in the form of ramps are formed on the cartridge.

Also EP 0 730 913 discloses a discharge device comprising a two-component cartridge and an accessory, e.g. a mixer. The accessory is over a

Bayonet connection attached to the cartridge. These are in some embodiments of the cartridge and on Accessory inclined surfaces formed during the

Attach an axial force to move the accessory and the cartridge towards each other. When releasing the connection between the accessory and the cartridge, however, no axial force acts in the opposite direction to facilitate the lifting.

Presenting the invention while retaining the advantages mentioned, there are still a few improvements to such a delivery arrangement

desirable to further enhance its usability. Starting from this prior art, a first object is a reliable and fast

Make connection between the cartridge and the accessory such that with little effort, the accessory both sealingly attached to the cartridge and can be lifted from the cartridge. A

Discharge assembly that solves this problem is in

Claim 1 specified.

Thus, a discharge arrangement is specified, comprising:

an accessory with at least two inlets;

a cartridge for at least two components, wherein the cartridge at least two chambers for each one of the components and at least two to the inlets

Complementary outlets for the components, wherein in each case one of the outlets can be plugged into one of the inlets or vice versa; and

a connecting device with a first

Connection component, which is arranged on the accessory, and complementary to the first connection component second connection component attached to the cartridge

is arranged

wherein one of the connection components is a

Has plug-in receptacle and the other connection component has a longitudinally insertable therein connector.

To attach and detach the accessory

are outside of the first connector parts on the outer circumference and the inner circumference in the

Socket corresponding second engaging portions of a longitudinally inclined rotary guide provided along which the connection components after the

Insertion of the connection part into the plug-in receptacle via an effective connection section rotatable into each other and thereby guided in the axial direction increasingly engaged with each other and guided over an effective connection portion in the axial direction of each other out of engagement

can be brought. These engagement parts are designed such that during the manufacture of the compound a

inevitably leading the accessory is made to the cartridge and that occurs during the release of the connection, a forced lifting of the accessory from the cartridge.

In a preferred embodiment, the first engagement parts extend only over a partial circumference of the

Connecting part and / or the second engaging parts only over a partial circumference of the plug-in receptacle, in particular at most a quarter of the circumference. Preferably, the first and second engagement parts are formed such that the

When attaching the accessory, the connecting part makes a maximum of one quarter turn before the first and second Engaging part in the circumferential direction in a stop

advised each other.

The first and second engagement parts can each be designed as a protrusion on the outer wall of the connection part or a depression in the inner wall of the plug-in receptacle.

The plug-in receptacle is preferred as at least two

spaced apart receiving jaws

formed, which have a circular curved inner wall. In this case, guide grooves may be formed on the inner wall, which form the second engagement parts and with the first engagement parts on the connection part

interact.

Alternatively, instead, the connection part may have at least two outer circumferentially arranged guide grooves, which form the first engagement parts. The plug-in receptacle is then in turn formed as at least two receiving jaws arranged at a distance from one another, which, if appropriate, may also have a circularly curved inner wall here. The second engagement parts are then formed on the inner wall of the plug-in receptacle.

Irrespective of whether the guide grooves are formed on the plug-in receptacle or on the connecting part, each of the guide grooves is usually between one with respect to the

Longitudinal insertion side first edge and a substantially parallel thereto extending second edge, ie, the first and second edge define the respective guide groove with respect to the longitudinal direction. The second edge is then opposite the first edge preferably formed longer, so that an axial

Plug stop for a corresponding, cooperating with the guide groove, engaging part is formed. The engaging parts cooperating with the guide grooves preferably comprise at least two ramps, the

Guide grooves are formed accordingly. In particular, the thickness of the ramps corresponds in the longitudinal direction

preferably substantially the width of the guide groove, i. the distance of the edges which define the guide groove, and the inclination of the ramps corresponds to the inclination of

Guide grooves.

Preferably, the guide grooves and the so

cooperating engagement parts with respect to the transverse direction to the longitudinal axis of the discharge assembly by an inclination angle of at least 4 ° and at most 20 °, preferably from

at least 7 ° and not more than 16 ° inclined. When the socket forms receiving jaws, gaps of different lengths are preferably formed between the jaws. The first engagement parts then preferably have different lengths that the

correspond to different lengths of the gaps. In this way, a coding is achieved which prevents the accessory from being attached in an undesired orientation.

Preferably, at least one of the engagement parts has a rotation stop so as to limit the rotation range of the accessory. In preferred embodiments, the first connecting component arranged on the accessory part has the connecting part, while the second one arranged on the cartridge

Connection component has the plug-in receptacle. In other words, in this case, the plug-in receptacle is formed on the cartridge, and the connection part, which can be inserted into the plug-in receptacle, is arranged on the accessory part. It is

However, a reverse arrangement possible, in which the plug-in receptacle is arranged on the accessory and in which the plug-in receptacle to be inserted in the connector part is arranged on the cartridge.

When the attachment is located on the accessory, it is preferably rotatable with respect to the inlets of the attachment but axially secured. Particularly preferably, the connection part is arranged relative to the inlets of the accessory substantially axially immovable.

In this case, the connection part is preferably designed as a cap sleeve. In an alternative but less preferred embodiment, the connector may be molded directly onto the housing of the accessory. In the latter case, the housing is then rotated relative to the inlets of the accessory and preferably axially immovable.

In order to ensure the clearly directed placement of the accessory on the cartridge, the cartridge and the accessory can be complementary coding means

exhibit. An example of such coding agents has already been mentioned above. Further examples are given below. Thus, the coding can be formed by a different width of at least one guide groove and / or ramp to the respective Austraganordnungen. Alternatively or In addition, the coding can be different

Diameter of the inlets and outlets done. Alternatively or additionally, the coding can take place by means of a coding nose on the accessory and a corresponding coding notch on the cartridge. Other types of coding are of course possible and known from the prior art.

If the accessory is a mixer, the

Task, for cartridges with different volumes, or mixing ratios, the smaller component not

suppress in order to obtain a proportional mixture already at the beginning of the discharge. To the proportional

Mixing of two components can then be done

Mischereinlassbereich be provided with an end plate and a U-shaped Umlenksteg to together with the

Mixer housing to form a deflection chamber, wherein the

Deflection chamber has a divider, the

Outlet openings, which are connected to the outlets of the cartridge divides, and wherein the divider on the

Aligning edge of a first mixing spiral is aligned.

At the same or similar mixing ratios, however, the mixer inlet portion may be provided with an end plate to provide a separation chamber together with the mixer housing, wherein the separation chamber has a divider which divides the outlet openings and the divider on the

Aligning edge of the first mixing spiral is aligned. Brief description of the drawings

The invention will be described below with reference to preferred

Embodiments with reference to the drawings explained in more detail, based on which further properties and advantages of the invention result. It shows: an exploded view of a first

Embodiment of the invention; a plan view of the inlet end of a mixer of Fig. 1; a plan view of the outlet end of the cartridge of Fig. 1; a perspective view of the mixer of Figure 1 prior to placement on the cartridge of Fig. 1. in perspective, the nested parts shown in Figure 4 before tightening the mixer; a longitudinal section of the illustration of Fig. 5; in perspective, shown in Figure 5, nested parts after rotation through 90 °. a longitudinal section of the illustration of Fig. 7; FIGS. 9 to 12 show a variant embodiment according to FIGS. 1 to 8;

13 shows a perspective view of a variant of a

Mixer input part; FIG. 14 shows the mixer input part of FIG. 13 in FIG

Top view ; FIG. 15 shows a longitudinal section through the mixer inlet part of FIG. 13; FIG.

Fig. 16: a perspective view of another variant of a mixer input part.

Description of preferred embodiments

Fig. 1 shows a first embodiment of a

Discharge assembly 1 with a double cartridge 2 and an accessory 3 in an exploded view. In the following, the term "cartridge" for multi-component cartridges. The cartridge can be used as a double or

Multiple syringe be formed, i. as a cartridge from which the components received therein pass through

Advancing piston can be ejected. The .Accessory 3 is here a mixer with a

Mixer tube 4, in which mixing elements 4A are arranged. There are also other accessories such as closure ^' plug or extension parts or the like. in question. The

Mixing elements are known per se at one

Mischerereingangsteil 4 B fixed, which has the two inlets 15, 16, wherein the mixer tube is attached to the input part 4 B, to give the mixer 3 together. In the present case, the mixer 3 by means of a

Connecting part 5 can be fastened to the cartridge 2, wherein the connecting part is designed here as a cap sleeve. On two opposite jacket portions of the connecting part 5, two engagement ribs 6, 7 are arranged, each composed of a ramp 8 and a rotation stop 9. The ramp 8 extends in each case by approximately one quarter of the outer circumference of the connecting part 5 and has an inclined position in the direction of the longitudinal axis of the

Connecting part 5 on. The inclination is chosen such that the respective free end of the ramp 8 closer to the

Inlet end of the connection part 5 is arranged as the opposite Rampenende. The connecting part 5 and the engaging webs 6, 7 formed thereon form a first connecting component 11 of the connecting device. On the outer circumference of the connecting part 5 grip ribs 5A are arranged.

In principle, it is also possible, but not preferred, to form an identical connection component 11 directly on the accessory housing, whereby the inner parts, such as

Mixing element or sealing plug of the accessories

preferably are arranged rotatably relative to the housing.

The cartridge 2 comprises two cylindrical chambers 13, 14 for one of the mixing components. The lateral surfaces of the chambers 13, 14 are interconnected along the longitudinal axis of the cartridge 2, see Fig. 6. At the outlet end of the cartridge is the second, complementary to the first

Connection component 12 of the connection device

arranged. At the outlet flange 17 of the cartridge are two outlets 18, 19. The cartridge outlets are complementary to the mixer inlets, i. that in each case an outlet can be plugged into an inlet, or vice versa, wherein the diameters of the inlets of a mixer and thus the

Outlets of a cartridge should not be equal to each other and may, for example, have a ratio of 1: 2 to 1:10. In addition, the inlets and outlets, as known per se, slightly conical, whereby a good seal is achieved. However, this results in both when putting on and when pulling off the mixer quite high friction or adhesive forces that of the

Connecting device must be overcome.

The second connection component 12 comprises two receiving jaws 20, 21 which are arranged at a distance from one another and which are arranged on the outlet flange 17 of the cartridge and each have a circularly curved inner wall 22, 23 which corresponds to the cylindrical shape of the connection part 5

corresponds, so that in this way a plug-in receptacle for the connection part 5 is formed. The gaps A and B between the two jaws correspond to those

Circumferential portions A and B of the engaging protrusions 6 and 7 on the mixer, see Figures 2 and 3. It is often important that the mixer or other accessory ¹ clearly directed, that can be placed in a single orientation and connected. This requires mutually complementary coding means on both the accessory and the cartridge. One of these

Coding means are different sectors for the

Sections A and B, or different diameters of inlets, outlets.

For cartridges with a vessel ratio of 1: 1, the two gaps, or perimeter sections may be the same, but at ratios of 2: 1 to 10: 1 is a clear

directed placement of the mixer required, so that for encoding, the two values for A and B are different, as shown in FIGS. 2 and 3.

In the inner wall 22, 23 of the receiving jaws 20, 21 in each case an obliquely extending guide groove 25, 26 is provided, the inclination and shape substantially the

Ramps 8 on the accessory corresponds. At the respective

Screw-in 27 is formed on the receiving jaw 20, 21 a paragraph, which is formed from a plug guide surface 29, 30 and a plug stopper 31, 32 for the engagement webs 6, 7 on the connecting part 5.

Fig. 5 shows the discharge assembly 1 after the

Nesting of the connection components 12 and 11 on the cartridge 2 and on the accessory 3. By the

formal approximation of the receiving jaws 20, 21 to the

The lateral surface of the connecting part 5, as well as the gaps A, B to the plug-in cross section of the engagement webs 6, 7, is a longitudinal axial plug guide surface for the insertion of the

Connection component 11 ensures.

Furthermore, by the arrangement of the respective

Socket 31, 32 made sure that after the

Plug together the respective free end of the ramp 8 is located in the front region of the screw-27. Of the

Plug stopper 31, 32 is selected such that the rear side of the connecting part 5 has a spacing from the outlet flange 17. With the plug stop 31, 32 is at

Mating the connection components 12 and 11 ensures the positioning of the engagement webs 6, 7 in the intended rotational position for the user. In the longitudinal sections of Figures 6 and 8 in addition to the meshing of the engaging parts, the telescoping of the inlets and outlets is shown, wherein the inner edge of the outlets 18, 19 is formed as an insertion cone 33.

Fig. 7 shows the discharge arrangement after the nesting of the connection components 11 and 12 and complete

The oblique position of the rotary guide means that the rear side of the connecting part is now completely guided towards the outlet flange and the inlets and outlets are plugged together. Through the rotation stop 9 to the

Engagement webs 6, 7 is after the complete

positive interlocking rotation of the engaging parts 6, 7 and 25, 26 an undesirable further rotation thereof effectively avoided.

Preferably, the engagement parts 6, 7 each extend only over part of the circumference of the connecting part 5 or by the receiving jaws 20, 21 formed

Plug-in receptacle, so that only a partial revolution is needed to complete the connection and thus only a simple handle on the part of the user

is required. Advantageous is a complete

Engagement of the engagement members substantially by a quarter turn. A particularly smooth twistability of the engagement parts can also be achieved in that the rotation guide is not too steep and with respect to the longitudinal axis circumference by a skew angle of at least 4 ° and at most 20 °, preferably of at least 7 ° and at most 16 °, is arranged. Since the ramp 8 and the guide groove 25, 26 over their

Overall length substantially have a constant width, a positive engagement over its width along its increasingly intermeshing length section is established in each phase of twisting. Thus, a positional fixation of the connection components 11, 12 is already ensured during the rotation.

By the opposite arrangement of the two

Engaging parts 5, 7 and 25, 26 gives the user the advantage of a double-assisted rotation guide, in which even over a small twisting distance, a stable connection between the connection components 11, 12 can be produced and thereby unintentional tilting or slippage of the connection components 11, 12th can be effectively prevented during twisting.

Figures 9 to 12 show as an alternative embodiment, a discharge assembly 35, a cartridge 36 and a

Accessory 37 includes, which is also a mixer here. The with the preceding embodiment

matching components of the discharge assembly 35 are provided with the same reference numeral. In contrast to the embodiments according to Figures 1-8 are here the

Guide grooves on the connection part 48, which is also a

Cap sleeve is, and arranged the ramps on the receiving jaws 20A, 21A of the cartridge.

In this variant too, the connection component on the connection part can be directly on the housing of the accessory.

The mixer 37 is substantially identical to the

formed above mixer 3, wherein however, the engaging parts which rise from the lateral surface of the connecting part 48 are arranged in a U-shaped manner and are each designed as a guide groove 40, 41. The two parallel webs 38, 39 of the respective engagement parts extend by about a quarter of

Outer circumference of the connecting part 48 and have a

Tilted up. The one from the front of the

Connecting component 11 arranged more distant parallel web is in each case in its length to the spacing of the

Receiving jaws 20A, 21A aligned and inserted into the respective gap A, B. The outlet side arranged

Parallel web 38 projects beyond the other parallel web 39 and the end part forms a plug stopper 42A and 42B. The respective end between the parallel webs 38, 39

arranged center leg fulfills the function of a

Turning stop 43.

The cartridge 36 has two containers 44 and 45 with

different diameters. In the receiving jaws 20A, 21A, a respective ramp 46, 47 is formed whose shape and thickness Y ¹ and Z 'to the shape and width Y, Z of the

Guide groove 40, 41 of the connecting parts is complementary. In principle, both the guide grooves 40, 41 and the ramps 46, 47 each have the same width, or thickness, so that the mixer can be placed and connected in two different positions by 180 °. This design is usually used with cartridges with a

Container ratio of 1: 1 used.

A comparison of Figures 9 and 10, showing the cartridge 36 with attached mixer 37 from two sides, shows that for coding the guide groove 40 of the U-shaped

Connecting part 38 of the mixer has a greater width Y than the width Z of the other guide groove 41. The complementary ramps 46, 47 on the cartridge have a corresponding different thicknesses Y 'and Z'. This ensures that the mixer can be plugged in and connected in only one position.

For effective coding, the inlet-side end of cap sleeve 5 has a coding lug 10A which fits into a coding notch 24 in a receiving jaw 21, see Figures 2 and 3. Depending on the circumstances, it may be difficult to properly set up the mixer with different land width, so that visual coding means are helpful. For this purpose, the cap sleeve at the level of the coding nose on a visual coding 10B.

Analogous to the first embodiment, the

Cap sleeve 48 of the second embodiment a

Coding nose 49A and visual coding means 49B.

Figures 9 and 10 show the discharge assembly 35 after nesting of the connection components 11 and 12, wherein by abutting the respective plug stopper 42 to the end wall of the receiving jaws 20A, 21A a

Positioning of the ramps 46, 47 is ensured in front of the entrance area in the guide grooves 40. It is the

End wall also formed as an inclined plane. Figures 11 and 12 show the discharge assembly 35 after the nesting of the connection components 11 and 12 and complete interlocking by a quarter turn the provided engaging parts to the

Dreharretierung by the respective rotation stop 43rd

The coding by means of different thicknesses of the ramps on both sides of the cartridge in the second exemplary embodiment can be transferred analogously to the first exemplary embodiment with a different thickness of the engagement parts on both sides of the connecting part. If cartridges are used with storage containers and outlets with different diameters and thus different mixing ratios, there is a risk that at the mixer input part with corresponding

different inlets the larger component suppresses the smaller component. According to EP-0 885 651 B1, it is then advantageous to design the mixer input region in such a way that this smaller component is not suppressed and thus a proportional mixing can be achieved already at the beginning of the discharge process.

In FIGS. 13 to 15, a suitable one is

Mixer input arrangement according to the above-mentioned patent. The mixer 50 has an inlet part 51, which has on the outlet side a mixing coil 52 with separating edge 53 of the first mixing coil, which is arranged on an end plate 54 and the inlet side, the two inlets 55 and 56, which are arranged on a flange 57. Aligned to the separating edge 53 of the first mixing helix is a guide bar 58, which is arranged in the middle of the two inlet openings 59 and 60, see in particular FIG. 14.

Between the openings, a U-shaped Umlenksteg 61 is arranged, whereby the current of the larger component is deflected and the smaller component entrains before get both components to the cutting edge of the first mixing spiral, see arrows in Fig. 14. In this case, the

Material flow forced to flow between the end plate and the mixer housing along the end plate, whereby a deflection chamber UK is formed, which ensures a proportional mixture from the beginning after reaching the cutting edge on the mixing element. The exact structure and the

Operation of this arrangement is sufficiently explained in the above-mentioned EP-0 885 651 Bl.

FIG. 16 shows a variant for a 1: 1 cartridge with a separating web 62, which is arranged at an input part 63 of a cartridge 64 aligned with the separating edge of the first mixing spiral and ensures that the same partial flows of each component are in the two partial cross sections flow in the first mixing spiral and thus give optimum mixing. The cartridge 64 has equal inlets 65, 66 and openings 67, 68. The connection component 11 for the variants according to FIGS. 13 to 16 is the same as described above.

From the foregoing description, u.a. :

- The connection components not only allow a quick and tight connection of a mixer to a cartridge but above all without much effort

Lifting and separating the inlets and outlets, which can otherwise be a problem with the conicity of the inlets and outlets and the incipient hardening of the components, as well as subsequent removal and replacement of mixers.

- The connection components can in addition to the described each double arrangement of opposing or opposing engagement parts also differently arranged and another number of

Have engagement parts.

- In addition to the shown training of the engaging parts as

Ramps or guide grooves are also differently shaped

Engaging parts conceivable that correspond to each other

are formed and during the rotation increasingly engageable with each other and are easily solved. As described are in the plug and on the

Connecting part complementary engaging parts

provided, which are increasingly engageable with each other for the effective production of the connection by twisting and cause a rotary guide, which extends along a circumference about the longitudinal axis and a

Having guide component in the direction of the longitudinal axis.

By this inclination of the rotary guide takes place during the preparation of the compound an inevitable

Bringing the accessory to the cartridge or during the release of the compound inevitable lifting the

Accessory from the cartridge, but without large

Effort. This inevitable lifting of the accessory from the cartridge is essential to the invention and will

also made possible via the guide in the effective connection section.

Due to the inventive circumferential arrangement of mutually corresponding engagement parts is also possible, by a special shape of the

Engaging a coding for each other

to provide associated cartridges or syringes and accessories. This makes it possible to avoid that two non-complementary complementary parts twisted into each other can be, for example, an undesirable

Assembly of non-related cartridge and accessory to avoid. In the case of a guide groove or ramp, such a twist coding can be realized, for example, by different widths of engagement parts which are not assigned to each other.

In the above description, only a selection of coding types are shown by way of example, but according to EP-1 440 337 a multiplicity of further coding possibilities are available.

Claims

claims

1. discharge arrangement comprising:

an accessory (3; 37; 50; 64) with at least two

Let in (15, 16; 55, 56; 65, 66);

a cartridge (2; 36) for at least two

Components, wherein the cartridge (2; 36) at least two chambers (13, 14; 44, 45) for each one of the components and at least two outlets complementary to the inlets. (18, 19) for the components, wherein in each case one of the outlets (18, 19) can be plugged into one of the inlets or vice versa; and

a connecting device with a first

Connection component (11), which is arranged on the accessory (3; 37; 50; 64), and one to the first

Connecting component complementary second

Connection component (12) which is arranged on the cartridge (2, 36),

wherein one of the connection components (11, 12) a

Plug-in receptacle (20, 21, 20A, 21A) and the other connection component (12, 11) has a connection part (5, 48) which can be inserted longitudinally therein,

characterized in that outer engagement parts (6, 7, 40, 41) on the outside of the attachment part (5, 48) and second engagement parts (25, 26, 46, 47) corresponding to the inside of the insertion receptacle (20, 21; 20A, 21A) a longitudinally inclined rotary guide are provided, along which the connecting components (11, 12) after the insertion of the connecting part (5; 48) in the

Plug-in receptacle (20, 21, 20A, 21A) over an effective

Connecting portion rotatable into each other while guided in the axial direction increasingly engaged with each other and guided over an effective connecting portion in the axial direction out of engagement, so that during the manufacture of the compound a

the accessory (3; 37; 50; 64) is brought to the cartridge (2; 36) and that, during the release of the connection, the accessory (3; 37; 50; 64) is forcibly lifted off the cartridge (2; ) he follows.

2. discharge arrangement according to claim 1, characterized

characterized in that the first engaging parts (6, 7, 40, 41) extend over a partial circumference of the connecting part. (5; 48) and / or that the second engagement parts (25, 26; 46; 47) extend over a partial circumference of the plug-in receptacle (20, 21; 20A, 21A).

3. Discharge arrangement according to claim 1 or 2, characterized in that the first and second engagement parts (6, 7, 25, 26, 40, 41, 46, 47) each as a survey on the outer wall of the connecting part (5, 48) or a

Recess in the inner wall (22, 23) of the plug-in receptacle (20, 21, 20A, 21A) are formed.

4. discharge arrangement according to one of the preceding

Claims, characterized in that the plug-in receptacle (20, 21) as at least two spaced apart

arranged receiving jaws is formed, the one

circularly curved inner wall (22, 23), wherein at the irinenwandung (22, 23) guide grooves are formed, which form the second engaging parts (25, 26) and with the first engaging parts (6, 7) on the connecting part (5)

interact.

5. discharge arrangement according to one of claims 1-3, wherein the connecting part (48) at least two

having externally circumferentially arranged guide grooves, which form the first engagement parts (40, 41),

wherein the plug-in receptacle (20, 21) as at least two spaced-apart receiving jaws

is trained, and

wherein the second engaging portions (46, 47) on the

Inner wall (22, 23) of the Steckaufnähme are formed.

6. Discharge arrangement according to claim 4 or 5, characterized in that each of the guide grooves is formed between a longitudinal edge of the plug-in side first edge and a substantially parallel thereto extending second edge, wherein the second edge is formed opposite the first edge longer, whereby a axial plug stop (31, 32, 42). for a corresponding

Engaging part (6, 7, 46, 47) is formed.

7. Discharge arrangement according to one of claims 4-6, characterized in that the with the guide grooves

cooperating engaging parts (6, 7, 46, 47) comprise at least two ramps, which are formed according to the guide grooves.

8. discharge arrangement according to one of claims 4-7, characterized in that the guide grooves and the thus

cooperating engaging parts (6, 7; 46, 47) with respect to the longitudinal axis of the discharge arrangement by an angle of inclination of at least 4 ° and at most 20 °, preferably of

at least 7 ° and at most 16 ° are inclined.

9. Discharge arrangement according to one of claims 4-8, characterized in that between the receiving jaws gaps (A, B) are formed of different lengths, and that the first engagement parts (6, 7, 40, 41) have different lengths, the different lengths of the

Gaps (A, B) match, so the gaps and

Engaging parts act as coding means to ensure the clearly directed placement of the accessory on the cartridge.

10. discharge arrangement according to one of the preceding

Claims, characterized in that at least one of the engaging parts (6, 7, 25, 26; 40, 41, 46, 47) has a

Rotary stop (9; 43) has.

11. discharge arrangement according to one of the preceding

Claims, wherein the first arranged on the accessory

Connection component (11) the connection part (5; 48)

and wherein the second connection component (12) arranged on the cartridge has the plug-in receptacle (20, 21, 20A, 21A).

12. A dispensing assembly according to claim 11, wherein the

Connecting member (5; 48) opposite the inlets (15, 16; 55, 56; 65, 66) of the accessory (3; 37; 50; 64) rotatable and axially secured.

13. Discharge arrangement according to one of the preceding

Claims, characterized in that the connecting part (5; 48) is designed as a cap sleeve or directly on the housing (4) of the accessory (3; 37; 50; 64) is formed.

14. Discharge arrangement according to one of the preceding

Claims, characterized in that the cartridge (2; 36) and the accessory (3; 37; 50; 64) are mutually opposed complementary coding means (A, B; Y, Z; Υ ', Z'; 10A, 10B, 24; 49A, 49B) for positively locking the accessory onto the cartridge

guarantee.

15. Discharge arrangement according to one of the claims 1 to 14, characterized in that the accessory is designed as a mixer, wherein for the proportional mixing of two components of the mixer has a mixer inlet region (51) having an end plate (54) and a U-shaped Deflecting web (61) is provided to form together with a mixer housing (4) a deflection chamber (UK), wherein the deflection chamber has a separating web (58), which connected to the outlets of the cartridge outlet openings (59, 60, 67, 68) divides, and wherein the separating web (58) on the separating edge (53) of the first mixing helix (52) is aligned.

16. Discharge arrangement according to one of the claims 1 to 14, characterized in that for better mixing of two components of the mixer inlet region (63) is provided with an end plate to give together with the mixer housing (4) a separation chamber, wherein the separation chamber a separating web (62) which divides the outlet openings (67, 68) and the separating web (62) is aligned with the separating edge (53) of the first mixing spiral (52).