Dispensing system and dispensing outlet

Abstract

The invention relates to a dispensing system (10) comprising a dispensing outlet (110), a cartridge (14), a connector (16) and a plug element (50) arranged inside the connector (16) and at the cartridge (14), where the connector (16) is arranged at the cartridge (14) and the dispensing outlet (110) is separate from the connector (16) and the cartridge (14) and can be locked to the cartridge (14) by rotation of the connector (16) into a use position, where the plug element (50) is arranged inside the connector (16) and at the cartridge (14). Rotation of the connector (16) into the use position causes axial movement of the plug element (50) relative to the cartridge (14) and the dispensing outlet (110). The invention also relates to a dispensing outlet, preferably for use in a dispensing system (10).

Description

Technical Field

[0001] The present invention relates to a dispensing system comprising a cartridge, a dispensing outlet such as a static mixer and a connector, and to a dispensing outlet optionally configured for use in such a dispensing system. Background Art

[0002] Dispensing systems exist in a variety of forms and may be used in a wide variety of applications ranging from dental applications, medical applications, veterinary applications to industrial applications and the like.

[0003] The dispensing system typically has an outlet that can be connected to the cartridge so that the material stored in the cartridge is directed to the point of application via the outlet. If a two-component material such as an adhesive, coating, molding material, impression material, etc. is to be dispensed, the outlet portion of the dispensing system typically includes a mixer to mix the two components for the purpose of achieving a more or less ideal dispensing.

[0004] Dispensing systems are usually made of plastic parts, and in particular the spout (ie the mixer) is a single-use part that is discarded after each use. When the spout is discarded, the remaining material to be dispensed also becomes waste. Summary of the invention

[0005] For this reason, it is an object of the present invention to provide a dispensing system via which material waste can be reduced both with regard to the amount of plastic in the component and with regard to the material to be dispensed using the dispensing system.

[0006] This object is achieved by the subject-matter of the corresponding independent claims.

[0007] Such a dispensing system comprises a dispensing outlet, a cartridge, a connector and a plug element arranged in the connector and at the cartridge, wherein the connector is arranged at the cartridge and the dispensing outlet is separate from the connector and the cartridge, and wherein the connector can be locked to the cartridge by rotating the connector about a longitudinal axis into a use position, wherein the rotation of the connector into the use position causes the plug element to move axially along the longitudinal axis relative to the cartridge and the dispensing outlet.

[0008] By arranging the connector at the cartridge rather than at the dispensing outlet, the material of the connector is not discarded after use of the dispensing outlet, thereby reducing plastic waste after use of the dispensing system.

[0009] Furthermore, such a dispensing system may be formed with reduced component sizes, resulting in a further reduction in waste.It should also be noted that due to the reduced size and complexity of the dispensing outlets, these dispensing outlets may be produced in a more efficient manner.

[0010] The rotation of the connector relative to the dispensing outlet around the longitudinal axis can lock the dispensing outlet to the connector. In this way, the rotation of the connector can achieve two functions: a locking function and an activation function.

[0011] In the case of being installed with the dispensing outlet, the rotation of the connector relative to the dispensing outlet about the longitudinal axis can lock the connector to the cartridge. In this way, the connector can be prevented from being removed from the cartridge.

[0012] Axial movement of the plug into the use position allows material to flow from the cartridge into the dispensing outlet.

[0013] The dispensing outlet may include an outlet opening and a corresponding inlet arranged spaced apart from the outlet opening along the longitudinal axis. Such an inlet and outlet allow material to flow through the dispensing outlet when the dispensing system is in use.

[0014] The dispensing outlet may comprise at least one of an intra-oral rotation tip (IOR) and a static mixer.Such a dispensing outlet is particularly advantageous for dispensing multi-component materials.

[0015] The cartridge may be a two-component cartridge, and wherein the static mixer may include a distributor for directing the respective material flows from the cartridge via the respective inlet to the mixing element of the static mixer. In this way, an optimized mixing result can be achieved by directing the material flows to the mixing element in the most efficient manner possible.

[0016] The static mixer may comprise a housing enclosing the mixing element and the inlet, wherein the housing comprises at least one, in particular axially extending, locking groove on its inner surface. Furthermore, the connector may comprise at least one, in particular axially extending locking projection, which is configured to engage with the locking groove of the housing for rotationally fixing the housing to the connector. In this way, the housing of the static mixer may be used as an easily accessible operating member for rotating the connector into and out of a use position.

[0017] In such a configuration, the internal components of the static mixer, in particular the inlet of the static mixer, are coupled to the housing in an axially fixed but rotationally movable manner. In this way, the rotational movement of the connector is reliably decoupled from the inlet of the static mixer.

[0018] The housing can be configured to be fixed to the cartridge via another fixing structure, in particular in the form of a snap-fit ​​structure or a thread. In particular, the fixing acts more axially than rotationally. In this way, the static mixer can be reliably prevented from being accidentally removed from the cartridge.

[0019] The distributor may have a non-circular outer cross-section, preferably in a plane perpendicular to the longitudinal axis. In this way, one may provide a coded alignment arrangement for connecting a static mixer to a cartridge by using a non-circular distributor.

[0020] The connector may have an opening formed in its top end, wherein the opening has a non-circular inner cross section, wherein the dispensing outlet may be insertable into the connector via the opening. In this way, the connector and the static mixer are formed to complement each other, i.e. the non-circular outer cross section of the distributor may be formed to complement the non-circular inner cross section of the opening in shape.

[0021] The static mixer may include a disk arranged at the housing of the static mixer, wherein the disk is then arranged to be spaced apart from the top side of the distributor along the longitudinal axis by a spacing. Such a disk may be used as a protective cover to prevent material from entering and / or leaving the connector when the dispensing system is in use. Furthermore, such a disk may be used to release a plug connection between the static mixer and the cartridge of the dispensing system.

[0022] The spacing between the disk and the distributor may correspond to the thickness of the wall of the connector at the top end, optionally wherein the static mixer is clamped to the cartridge via the connector in the spacing between the disk and the distributor when the connector rotates relative to the static mixer. In this way, a portion of the connector may be moved into and out of the space formed between the disk and the distributor of the static mixer for locking movement.

[0023] The dispensing outlet may include a housing having a connection area configured to be received within a receiving portion of the IOR. Forming the connection area on the outer surface of the housing enables a reduction in the volume spanned by the housing, thereby resulting in a reduction in the material remaining in the dispensing outlet after the dispensing action, and thus also enables a reduction in the amount of waste during use of the dispensing system.

[0024] The plug may include an external thread that interacts with the internal thread of the connector to cause axial movement of the plug. Such a thread pair can be reliably used to form a quarter turn connection between the barrel and the static mixer. The thread can be a single-start thread or a multi-start thread.

[0025] The plug can include two preferably cylindrical outlets connected to two corresponding windows that serve as the inlet from the cartridge, each outlet having a corresponding seal arranged downstream of the window along the longitudinal axis. The seal is optionally arranged to avoid fluid communication connection between the corresponding cartridge chamber and the corresponding window when the connector is not in the use position. In this way, the minimalist design of the plug can be used, thereby causing a further reduction in the amount of material used to form a distribution system and its accessories. Such a configuration is very suitable for an embodiment in which the plug element moves in a direction away from the cartridge when entering the use position.

[0026] Alternatively, the plug can include two preferably cylindrical outlets connected to two corresponding windows that serve as the inlet from the cartridge, each outlet having a corresponding seal arranged at the same height as the window along the longitudinal axis. The seal is optionally arranged to avoid fluid communication connection between the corresponding cartridge chamber and the corresponding window when the connector is not in the use position. In this way, the minimalist design of the plug can be used, thereby causing a further reduction in the amount of material used to form a distribution system and its accessories. Such a configuration is very suitable for an embodiment in which the plug element moves in the direction toward the cartridge when entering the use position.

[0027] The rotation of the connector into the use position may result in an axial lifting movement of the plug element along the longitudinal axis away from the cartridge and towards the dispensing outlet. Such a configuration is quite intuitive and easy to implement.

[0028] Alternatively, rotation of the connector into the use position may result in an axial push movement of the plug element along the longitudinal axis towards the cartridge and away from the dispensing outlet.Such a construction is very compact and robust.

[0029] The internal geometry of the housing of the dispensing system may correspond at least partially to the external geometry of the connector and / or have a locking device to produce a mechanical connection in order to releasably connect the housing to the connector and directly transmit a rotational movement of the housing on the connector in order to close or open the plug element. Such a construction is very robust and reliable.

[0030] The plug element can be configured to move in a direction toward the cartridge when axially moved into the use position by rotation to provide fluid communication between the outlet passage of the cartridge, the window of the plug element and the inlet of the dispensing outlet. In particular, the outlet passage of the cartridge can be provided with a seal that closes the window of the plug element in its first position and opens the window of the plug element in its second position. Such a configuration is highly functional and compact.

[0031] According to a further aspect, the present invention relates to a dispensing outlet configured for use in a dispensing system as described herein, the dispensing outlet comprising at least one of a static mixer and an IOR, wherein the IOR is attachable at the outside of the housing of the static mixer so that the IOR can rotate relative to the static mixer but cannot be moved axially. In this regard, other types of mixers may also be used with the IOR, or other types of intraoral terminals (IOTs) may be used with the static mixer, preferably the static mixer does not include a connector, but is arranged at the cartridge as described herein.

[0032] The dispensing outlet may comprise further features as defined herein.Such a dispensing outlet allows the dispensing outlet to be correctly placed at a treatment point, for example at a dental cavity of a dental patient.

[0033] The IOR may include an inner surface having one or more inner surface ribs arranged therein, and the outer housing includes one or more outer side ribs arranged at the outer side. In this way, one may position the IOR relative to the housing.

[0034] The one or more inner surface ribs and the one or more outer side ribs may extend parallel to each other. In this way, the dispensing outlet becomes more user-friendly.

[0035] The one or more inner surface ribs may be configured to engage with the one or more outer side ribs.In this way, a predetermined position of the IOR relative to the housing may be maintained during use of the dispensing outlet.

[0036] The one or more inner surface ribs and the one or more outer side ribs may extend parallel to the longitudinal axis. In this way, a dispensing outlet that is as compact as possible may be formed.

[0037] The IOR may comprise an inlet. The inlet may comprise one or more circumferentially extending ribs, preferably two circumferentially extending ribs. In this way, attachment of the IOR at the housing may be facilitated.

[0038] The inlet may comprise one or more apertures, preferably two apertures. In this way, a snap-fit ​​connection may be formed which is easier to manipulate upon assembly of the dispensing outlet.

[0039] A respective one of the one or more circumferentially extending ribs is arranged at a respective one of the one or more orifices. In this way, the construction size of the dispensing outlet can be minimized.

[0040] When viewed from the inlet opening of the inlet of the IOR, a respective one of the one or more orifices may be arranged downstream of the one or more circumferentially extending ribs. In this way, the construction size of the dispensing outlet may be minimized.

[0041] An inner surface with one or more inner surface ribs may be arranged at the inlet. In this way, the construction size of the dispensing outlet may be minimized.

[0042] The IOR is non-removably attached to the outer housing, for example via one or more snap-fit ​​connections, preferably via two snap-fit ​​connections. In this way, a connection that is simple to manufacture is used that allows rotation of the IOR relative to the housing while securing it axially to the housing.

[0043] The outer housing may comprise a lip extending circumferentially.In this way, a dispensing outlet which is as compact as possible may be formed, via which a snap-fit ​​connection becomes possible.

[0044] The static mixer may comprise a positioning slot frame which cooperates with two or more positioning grooves arranged in the connector of the static mixer. In this way, alignment between the connector and the components of the static mixer may be ensured.

[0045] The housing of the static mixer may comprise an energy carrier which is preferably arranged in the vicinity of the positioning slot. In this way, the assembly of the dispensing outlet may be simplified.

[0046] The inlet manifold of the static mixer comprises a boss. In this way, the assembly of the distribution outlet can be simplified.

[0047] The inlet manifold can be permanently attached to the housing. In this way, the most compact possible design can be ensured even for filigree components.

[0048] The inlet manifold may be permanently attached to the housing via the energy carrier and the boss. In this way, assembly of the distribution outlet may be simplified.

[0049] The IOR may include an inlet receptacle having a body with a sleeve attached. As an example, the sleeve may be attached to the body at an angle selected in the range of 15° to 75°, particularly in the range of 25° to 65° relative to the longitudinal axis.

[0050] As an example, the sleeve may have a passage with an inner diameter selected in the range of 0.1 to 2 mm. In contrast, the diameter of the housing of the mixing element arranged in the dispensing outlet may have an inner diameter selected in the range of 1-12 mm.

[0051] The length of the sleeve can be selected in the range of 5 to 100 mm, in particular in the range of 8 to 60 mm.

[0052] The dispensing outlet and the IOR may also each comprise a plate connected to the body of the inlet receptacle.Such a plate enables improved gripping of the dispensing outlet.

[0053] The plate can be connected to the body via one or more material webs. In this way, connecting material can be saved and the plate can be formed in a simple manner.

[0054] The dispensing outlet and the IOR may also each comprise a plate which is then connected to the body of the inlet receptacle via one or more webs at the portion of the sleeve where it is attached to the inlet receptacle of the body.Such a plate enables improved gripping of the dispensing outlet when it is in use.

[0055] The plate may have a flat outer surface. Such a flat outer surface enables improved gripping of the plate when the dispensing outlet is used.

[0056] According to another aspect, the dispensing system comprises a dispensing outlet, a cartridge and a connector. The connector is coupled to the cartridge, and the dispensing outlet is separated from the connector and the cartridge. The dispensing unit can engage with the connector and lock to the connector, and enter a use position by translational movement of the dispensing outlet relative to the cartridge and subsequent rotation or translational movement. Such a construction is very sturdy and reliable.

[0057] The connector may be arranged in a joint which is immovably coupled to the cartridge or forms part of the cartridge.Such a construction is very simple and robust.

[0058] The connector may comprise a passageway for receiving a section of the dispensing outlet, in particular a distributor or a protective disc, to connect the dispensing outlet to the connector. Such a construction is very compact and robust.

[0059] The connector can be rotated relative to the cartridge about an axis perpendicular to the longitudinal axis of the dispensing outlet for locking the dispensing outlet to the cartridge.Such a construction is very robust and easy to handle.

[0060] The connector can be slid vertically relative to the cartridge about the longitudinal axis of the dispensing outlet for locking the dispensing outlet to the cartridge.Such a construction is very compact.

[0061] The connector can be rotated relative to the cartridge about the longitudinal axis of the dispensing outlet for locking the dispensing outlet to the cartridge.Such a construction is very strong, but still easy to handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In the following description of the drawings, further embodiments of the present invention are described. The present invention will be explained in detail below by means of embodiments and with reference to the drawings, in which:

[0063] Figure 1a to Figure 1c shows the dispensing system in different states of use;

[0064] Figure 2Shown through Figure 1c A cross-sectional view of a distribution system;

[0065] Figure 3a and Figure 3b The dispensing system is shown in the connected position and in the use position. Figure 1b and Figure 1c A cross-sectional view of a distribution system;

[0066] Figure 4a and Figure 4b A partial cross-sectional view showing components of a dispensing system prior to connection and in a use position;

[0067] Figure 5a and Figure 5b Another type of dispensing outlet is shown in perspective and cross-sectional views;

[0068] Figures 6a to 6c Shows Figure 5a and Figure 5b View of the intraoral rotational tip;

[0069] Figure 7a and Figure 7b Shows Figure 5a and Figure 5b a view of components of a distribution outlet;

[0070] Figure 8a and Figure 8b Shows Figure 5a and Figure 5b A view of additional components of the dispensing outlet;

[0071] Fig. 9 A cross-sectional view showing an alternative embodiment of a dispensing system;

[0072] Figures 10a to 10d shows another type of dispensing system in different states of use and a cross-sectional view thereof in the use position;

[0073] Figures 11a to 11d Another further type of dispensing system is shown in different states of use and in cross-section in a connected position;

[0074] Figures 12a to 12d A still further type of dispensing system is shown in different states of use and a cross-sectional view thereof in the use position; and

[0075] Figures 13a to 13c Another view of an intraoral rotation tip (IOR) is shown. DETAILED DESCRIPTION

[0076] Figure 1a to Figure 1cThe dispensing system 10 is shown in different states of use. The dispensing system 10 comprises a static mixer 12, which can be connected to a cartridge 14 via a connector 16. The connector 16 comprises a closure 18, via which the static mixer 12 can be releasably locked to the cartridge 14.

[0077] An intraoral rotation (IOR) 20 is disposed at the end of the static mixer 12 remote from the end to be connected to the connector 16. The IOR 20 is free to rotate relative to the housing 28.

[0078] At this point, it should be noted that the static mixer 12 or the IOR 20 may also be referred to as a distribution outlet 110 .

[0079] When the static mixer 12 is connected to the cartridge 14, the two inlets 24, 26 of the static mixer 12 are inserted into the opening 36 of the connector 16. As a form of coded alignment means, the inlets 24, 26 have different sizes. The dimensions of the inlets 24, 26 of different sizes are designed to match the outlets 40, 42 of the dispensing system 10 (see Figure 2 ) are complementary in size.

[0080] The inlets 24, 26 of the static mixer 12 are connected to a distributor 34 of the static mixer 12. The distributor 34 is configured to distribute the respective flows of the materials M, M' entering the static mixer 12 (see Figure 2 ) is directed to the mixing element 38.

[0081] The outer shape of the distributor 34 is non-circular and is shaped to complement the shape of the opening 36 which serves as another code alignment means.

[0082] Due to the different types of coded alignment means, the static mixer 12 can be connected to the cartridge 14 via the connector 16 only in one orientation, thereby ensuring that the static mixer 12 is always connected to the cartridge 14 in the correct orientation.

[0083] To connect the static mixer 12 to the cartridge 14, the inlets 24, 26 and the distributor 34 of the static mixer 12 are introduced into the opening 36 of the cartridge 14 by pushing the static mixer 12 axially along the longitudinal axis A, as shown in FIG. Figure 1a When the static mixer 12 is inserted into the opening 36 , the inlets 24 , 26 connect with the outlets 40 , 42 . At this point, it should be noted that the longitudinal axis A extends parallel to the length of the static mixer 12 .

[0084] Once the inlets 24, 26 and distributor 34 of the static mixer 12 are received in the connector 16, as shown in FIG. Figure 1bAs shown in FIG. 1 , the closure member 18 of the connector 16 can be rotated relative to the static mixer 12 to move the static mixer 12 from the connection position to the use position. Figure 1c Indicated by arrow B in the figure.

[0085] The top side 44 of the distributor 34 is received within the connector 16 below the wall of the connector 16 defining the opening 36 so that once the closure 18 is rotated, the static mixer 12 is locked to the connector 16 and can only be removed by rotating the closure 18 in the opposite direction along arrow B. This is due to the fact that the opening 36 is shaped to complement the shape of the distributor 24 and that the opening 36 is aligned with the distributor 34 in the connected position but not in the use position.

[0086] If the closure 18 is not rotated and the static mixer 12 is pulled out of the locked closure 18, at least one of the connector 16 and the static mixer 12 will be damaged.

[0087] The closure 18 is formed by a retaining ring which is journalled in two closure mountings 32, 32' by means of one or more shoulder portions 30 arranged at the bottom end 46 of the closure 18. In this way, it is possible to ensure that the closure 18 and the static mixer 12 are captively held at the cartridge 14 when the static mixer 12 is connected to the cartridge in the use position.

[0088] The retaining ring also includes one or more abutments that limit the range of motion of the connector 16 between the connection position and the use position of the static mixer 12. In this example, the connector 16 can be rotated 90° relative to the cartridge to move the connector 16 between the connection position and the use position of the static mixer 12.

[0089] At this point it should be noted that the range of movement of the connector 16 between the connection position and the use position of the static mixer 12 may be selected within the range of 45° to 180° and in particular within the range of 60° to 120°.

[0090] It should also be noted that the shape of the opening 36 and / or the shape of the distributor 34 is oval and / or egg-shaped, especially in a plane perpendicular to the longitudinal axis A.

[0091] It should also be noted that both the opening 36 and the distributor 34 are covered in the use position by the protective disc 22. The protective disc 22 at least substantially covers the top end 48 of the connector 16, ie the plane spanned by the top end 48.

[0092] At this point, it should be noted that the area covered by the protective disk 22 is selected in the range of 60% to 100%, preferably 75% to 100%, of the area of ​​the top end portion 48 of the connector 16. In this way, when the static mixer 12 is applied, the opening 36 and the lower part of the connector 16 can be protected from contaminants and, vice versa, in the use position, erroneous outflow of material M, M' can also be avoided via the protective disk 22.

[0093] Furthermore, the protective disk 22 also facilitates releasing the clamp between the static mixer 12 and the connector 16, since the distributor 34 and the protective sleeve 22 can be said to clamp the top end portion 48 of the connector 16 therebetween when the connector 16 is rotated out of the use position.

[0094] The ratio of the length of the inlets 24, 26 to the height of the distributor 34 (i.e. along the longitudinal axis A) is selected in the range of 1 to 4 times, preferably 1.2 to 3 times, the height of the distributor 34, i.e. the length of the inlets 24, 26 can be at most four times the height of the distributor 34.

[0095] The length of the spacing between the protective disk 22 and the top side 44 of the distributor is selected in the range of 1.01 to 1.2 times, preferably 1.02 to 1.1 times, the wall thickness of the top end portion 48 of the connector 16 .

[0096] The static mixer 12 shown above does not include a connector or threaded portion that may be used for connection purposes, as is typical of static mixers used in the dispensing system 10 .

[0097] Figure 2 Shown through Figure 1c 4 , 5 and 6 , 10 , 15 . A plug element 50 is arranged in the connector 16 and cooperates with the inlets 24 , 26 and forms the outlets 40 , 42 of the cartridge 14 .

[0098] When the connector 16 is rotated into the use position, the connector 16 entrains the plug 50 and thereby lifts it axially upward and towards the inlet 24, 26. By this movement, the outlet 40, 42 of the plug moves in the outlet passage 52, 54 of the cartridge 14.

[0099] This movement allows the respective seals 56, 58 present at the outlets 40, 42 to disengage from the outlet passages 52, 54, thereby allowing the material M, M' to flow into the respective chambers 60, 62 of the outlet passages 52, 54. The flow of material M, M' may pass from the chambers 60, 62 into the inlets 24, 26 via the respective windows 64, 66.

[0100] The flow of material M, M′ is directed from the windows 64 , 66 via the distributor 34 to the mixing element 38 , where the material M, M′ is thoroughly mixed.

[0101] When the plug 50 is rotated out of the use position, the static mixer 12 is held in the same axial position due to the clamping of the connector 16 between the distributor 34 and the disk 22, so that the plug 50 moves axially away from the static mixer 12 relative to the connector, thereby ensuring that the static mixer 12 is released from the cartridge 14.

[0102] In the present example, the mixing element 38 is a so-called spiral mixing element, but may also be formed by one of a Quadro mixing element, a T-type mixing element or the like.

[0103] The mixing element 38 is received in the housing 28 of the static mixer 12 between the rear end 21 , which has the distributor 34 arranged there, and the front end 19 , at which the IOR 20 is arranged.

[0104] At the front end 19 , the housing 28 includes a connection region 68 for connecting the IOR 20 at an outer surface 70 of the housing 28 .

[0105] The connection region 68 includes a connection protrusion 72 that extends circumferentially around the housing 28. In the particular example shown, the connection protrusion 72 is formed as an annular structure. At this point, it should be noted that other types of connection protrusions 72 may also be used, provided that they allow relative rotation between the IOR 20 and the housing 28.

[0106] The connecting shoulder 74 is disposed spaced apart from the connecting protrusion 72 along the longitudinal axis A and further away from the front end portion 19 than the connecting protrusion 72 .

[0107] The connecting shoulder 74 forms part of the connecting region 68 for connecting the IOR to the outer surface of the housing 28 at the front end 19 .

[0108] At this point, it should be noted that the spacing between the connecting shoulder 74 and the connecting protrusion 72 is typically selected to be in the range of 0.005 to 0.2 times, preferably 0.05 to 0.1 times, the length of the housing 28 .

[0109] It should also be noted that the height of the connecting protrusion 72 extends beyond the housing 28 in a plane perpendicular to the longitudinal axis A by 20% to 150%, preferably 30% to 100%, of the wall thickness of the housing 28 between the connecting protrusion 72 and the connecting shoulder 74 .

[0110] The IOR 20 has a complementary shaped receiving section 76 having a receiving groove 78 and a receiving abutment 80 .

[0111] The receiving groove 78 is configured to receive the connecting protrusion 72. To this end, it should be noted that the receiving groove 78 has a shape complementary to the shape of the connecting protrusion 72 and a depth complementary to the height of the connecting protrusion 72 in a plane perpendicular to the longitudinal axis A.

[0112] The receiving abutment 80 is configured to cooperate with the connecting shoulder 74 and is shaped complementary to the connecting shoulder 74 for this purpose.

[0113] The connecting region 68 and the receiving section 76 are formed such that the IOR 20 is captively held at the static mixer 12 and cannot move axially along the longitudinal axis relative to the static mixer 12 , but relative rotational movement about the longitudinal axis A is permitted.

[0114] In this manner, a medical or dental professional or the like can rotate the IOR 20 relative to the static mixer 12 to position the IOR 20 at the desired dispensing point in the simplest possible manner.

[0115] The IOR 20 includes a cannula 82 for dispensing the mixed material M, M' at a desired dispensing point (ie, within a cavity of a tooth or the like).

[0116] The sleeve 82 is arranged to extend at an angle selected in the range of 0° to 90° relative to the longitudinal axis A, in particular in the range of 15° to 75° relative to the longitudinal axis A. In the present example, the angle relative to the longitudinal axis A amounts to 30°.

[0117] Figure 3a and Figure 3b The dispensing system 10 is shown in a connected position and in a use position. Figure 1b and Figure 1c sectional view of the dispensing system 10.

[0118] The plug 50 can be viewed as engaging internal threads 84 on an inner surface 86 of the connector 16. The internal threads 84 serve to capture the plug 50 in an axial direction along the longitudinal axis A.

[0119] In the example shown, rotation of the connector 16 causes the plug 50 to be lifted along the longitudinal axis A away from the cartridge 14 to the Figure 3b The use position shown in FIG. 6 is such that the windows 64 , 66 are aligned with the corresponding inlets 24 , 26 .

[0120] It should be noted that if a different orientation of the internal threads 84 is used, the plug 50 can also be pushed axially along the longitudinal axis A toward the cartridge 14. Fig. 9 , which is further referenced below.

[0121] If this arrangement is chosen, the windows 64 , 66 will reach into the respective cartridge chambers 92 , 94 of the cartridge 14 .

[0122] Seals 56, 58 seal each of the outlet passages 52, 54, respectively, and thereby prevent fluid communication connection between material M, M' stored in the respective cartridge chamber 92, 94 and the respective window 64, 66 when the cartridge is not in the use position.

[0123] Pistons (not shown) arranged in respective cartridge chambers 92, 94 can be used to dispense materials M, M' in a manner known per se via outlet passages 52, 54 and subsequently static mixer 12 in the use position. Such pistons can be acted upon by a plunger rod of a dispenser in a manner known per se.

[0124] Figure 4a and Figure 4b The components of the dispensing system 10 are shown prior to connection (i.e., as shown in FIG. Figure 1a ) and in the use position (i.e. in a position similar to Figure 1c ), in which the static mixer 12 is not installed at the barrel 14, but the connector 16 has been rotated relative to the barrel.

[0125] It should be noted that the static mixer 12 is a separate component from the connector 16 and is not only locked when the connector 16 is rotated relative to the static mixer 12, but is also placed in fluid communication with the outlet passages 52, 54 in the same movement.

[0126] As in Figure 4b As indicated in the position shown in , fluid communication between the cartridge chambers 92, 94 becomes possible when the plug 50 is moved from a sealed position in the non-use position to a non-sealed position in the use position by lifting the plug 50 along the longitudinal axis A and thereby disengaging the respective seals 56, 58 from contact with the outlet passages 52, 54 and allowing the material M, M' to flow into the respective chambers 60, 62.

[0127] Materials M, M′ may flow from respective chambers 60 , 62 via respective windows 64 , 66 into plug 50 and into inlet 24 , 26 of static mixer 12 , where they are subsequently mixed by mixing element 38 and then output via sleeve 82 of IOR 20 .

[0128] The rotation of the connector 16 locks the connector to the static mixer 12 and the cartridge 14, and in the unlocked state, and when the static mixer 12 is not present, the connector 16 can be removed from the cartridge 14, and this can be used with conventional static mixers (not shown) available from the applicant. If such conventional static mixers are used, these static mixers typically include an integrally formed closure of a bayonet-type closure, which is arranged not to be removable from the static mixer and generates waste that needs to be disposed of when the static mixer is discarded. Therefore, forming the closure 18 at the cartridge 14 means that less plastic waste is generated compared to the case where the closure is integrally present at the static mixer.

[0129] The top plate of the plug 50 comprises two outlet openings of the two outlets 40, 42 connected to two respective windows 64, 66 acting as inlets from the cartridge 14 into the plug 50. The respective seals 56, 58 are arranged along the longitudinal axis A downstream of the outlet openings and windows 64, 66.

[0130] In a side view, the plug 50 has a substantially T-shape, and in a view perpendicular to the side view, the plug has a C-shape.

[0131] The outlets 40, 42 of the plug 50 are formed as generally cylindrical passages with an opening formed at one of the ends thereof and respective seals 56, 58 formed at the ends opposite the respective openings along the longitudinal axis A. The ends of the passages of the outlets 40, 42 with the seals 56, 58 arranged thereat are closed so that a direct flow of the material M, M' cannot reach from the cartridge into the cylindrical passages, whereas the windows 64, 66 forming the entrances into the outlets 40, 42 of the plug 50 are respectively formed so that their openings are arranged perpendicularly to the openings of the cylindrical outlets 40, 42.

[0132] The plug 50 can only be moved axially, but cannot be rotated due to the fact that the respective outlets 40 , 42 of the plug 50 are arranged within the outlet passages 52 , 54 .

[0133] The cartridge 14 shown is a so-called side-by-side dual component cartridge 14 for storing two different materials M, M' in respective ones of the cartridge chambers 92, 94. The outlet passages 52, 54 fluidly connected to the respective cartridge chambers 92, 94 are arranged parallel to each other and parallel to the longitudinal axis A.

[0134] Figure 5a and Figure 5b Another type of dispensing outlet 110 is shown. Figure 5a A perspective view of the dispensing outlet 110 is shown, and Figure 5b Shown along Figure 5a Cross-sectional view taken along section line A:A.

[0135] The dispensing outlet 110 is configured for use in the dispensing system 10 as previously shown. The dispensing outlet 110 comprises a static mixer 12 and an IOR 20 arranged in a housing 28. The dispensing outlet 110 may be attached to a cartridge (not shown) via a so-called bayonet connection 116 known to those skilled in the art.

[0136] At this point, it should be noted that other types of connection means than the bayonet connection means 116 may also be used.

[0137] The IOR 20 is attached to the outer side 112 of the housing 28 such that the IOR 20 can rotate relative to the static mixer 12 but cannot move axially, ie, cannot move along the longitudinal axis A, but can rotate about the longitudinal axis A.

[0138] The IOR 20 comprises an inlet 118 arranged at the end 19 of the static mixer 12. The end 19 of the static mixer 12 is inserted into the inlet 118 and snap-fitted there into position via two snap-fit ​​connections 120.

[0139] The end 19 of the outer side 112 of the housing 28 includes a circumferentially extending lip 122. Figure 5b In the example shown in , the lip extends completely around the outer side 112 of the housing 28. However, it should be noted that the lip 122 may also include two or more partial lips (not shown). The function of the lip 122 is to provide a portion of the snap-fit ​​connection 120 via which the IOR 20 is attached to the housing 28. The attachment is selected so that the IOR cannot be removed from the housing 28 during its normal use.

[0140] Figures 6a to 6c Shows Figure 5a and Figure 5b A view of the intraoral rotation tip 20. Figure 6a , the IOR 20 is attached to the static mixer 12. The end 19 of the outer side 112 of the housing 28 is inserted into the inlet 118.

[0141] The inlet 118 further comprises two orifices 124. These orifices 124 form part of the snap-fit ​​connection 120. At this point it should be noted that the snap-fit ​​connection can also be formed without these orifices 124.

[0142] Viewed from an inlet opening 126 of the inlet 118 , the inlet 118 comprises two circumferentially extending ribs 128 arranged at each of the apertures 124 , wherein the aperture 124 is arranged downstream of the respective circumferentially extending rib 128 when viewed from the inlet opening 126 .

[0143] When the IOR 20 is snap-fitted into place at the static mixer 12, the two ribs 128 engage behind the circumferential lip 122. The IOR 20 is thereby axially fixed to the static mixer 12.

[0144] The inlet 118 of the IOR 20 includes an inner surface 129 having a plurality of inner surface ribs 130 disposed therein, such as Figure 6b The inner surface ribs 130 extend parallel to each other and parallel to the longitudinal axis A.

[0145] like Figure 6c As indicated in FIG. 1 , the static mixer 12 has a passage 134 with the IOR 20 (see Figure 6a ) is aligned with the outlet 114, wherein the material to be dispensed exits the outlet 114 and subsequently exits from the passage 134.

[0146] like Figure 6c As further indicated in FIG. 1 , the outer side 112 of the housing 28 includes one or more outer side ribs 132 disposed at the outer side 112. The outer side ribs 132 extend parallel to each other and parallel to the longitudinal axis A.

[0147] The inner surface ribs 130 are configured to engage with the outer side ribs 132. In this manner, the IOR 20 can rotate about the longitudinal axis A and the static mixer 12. The IOR 20 can be positioned relative to the static mixer 12 depending on the engagement position.

[0148] In this manner, the IOR 20 of the dispensing outlet 110 may be positioned, for example, at a tooth of a patient to be treated, and the cartridge attached thereto may be rotated, for example, by a dental professional, to dispense material at a desired angle in a convenient manner.

[0149] Figure 7a and Figure 7b Shows Figure 5a and Figure 5b 1. The static mixer 12 includes a mixing element 38 (see, e.g., Figure 8b ) of the housing 12 and the connector 16. The connector 16 can be rotated around the static mixer 12 so as to fix the static mixer 12 to the barrel in a manner known per se.

[0150] In order to align the static mixer 12 with respect to the connector 16 and maintain their relative positioning, the static mixer includes a positioning grid 136 that cooperates with two or more positioning grooves 138 disposed in the connector 16 .

[0151] To this end, the positioning bracket 136 includes a positioning protrusion 140 that is configured to engage the groove 138 .

[0152] Figure 8a and Figure 8b Shows Figure 5a and Figure 5b The housing 28 of the static mixer 12 includes an energy carrier 142 which is formed as an elongated strip disposed adjacent to the positioning slot frame 136, such as Figure 8a As indicated in .

[0153] The inlet manifold 146 of the static mixer 12 includes the inlets 24, 26 into the static mixer 12 and is formed integrally with the mixing element 38, for example, during an injection molding or additive manufacturing process. The inlet manifold 146 is inserted into the housing 28 so that the inlets 24, 26 are aligned with the channels 148 in the housing for directing the material to be dispensed to the mixing element 38, and the energy carrier 142 is aligned with the boss 144 of the inlet manifold 146.

[0154] Once the inlet manifold 146 is inserted into the housing 28 and the two components are bonded to each other via the energy carrier 142 and the boss 144, for example in an ultrasonic welding process, the housing 28 and the inlet manifold of the static mixer 12 are thereby permanently connected to each other in an aligned manner.

[0155] The static mixer 12 described above is used to mix multi-component materials M, M' dispensed from a multi-component cartridge 14. Such a mixer 12 is used in a large number of application fields ranging from industrial applications (such as using adhesives to bond structural parts to each other or as a protective coating for buildings or vehicles) to medical and dental applications (e.g. manufacturing dental molds).

[0156] The multi-component material M, M' is, for example, a two-component adhesive comprising a filler material and a hardener. In order to obtain the best possible mixing result, for example an adhesive having a desired bond strength, the multi-component material M, M' must be mixed thoroughly.

[0157] Thus, the multi-component cartridge 14 can be filled with a material M, M' selected from the group consisting of topical medications, medical fluids, wound care fluids, cosmetic and / or skin care preparations, dental fluids, veterinary fluids, adhesive fluids, disinfecting fluids, protective fluids, coatings, and combinations of the foregoing.

[0158] Thus, such materials M, M' and thus the dispensing system 10 can be conveniently used to treat target areas, such as the nose (e.g., antihistamine creams, etc.), ears, teeth (e.g., molds for implants or oral applications (e.g., canker sores, gum treatments, mouth ulcers, etc.)), eyes (e.g., precise deposition of medications on the eyelids (e.g., chalazions, infections, anti-inflammatory, antibiotics, etc.)), lips (e.g., herpes), mouth, skin (e.g., antifungal, dark spots, acne, warts, psoriasis, skin cancer treatments, tattoo removal medications, wound healing, scar treatments, pigment removal, anti-itch applications, etc.), other dermatological applications (e.g., skin nails (e.g., antifungal applications or strengthening formulas, etc.)) or cytological applications.

[0159] Alternatively, the materials M, M' and therefore the dispensing system 10 can also be used in the industrial sector, both for the production of products and for the repair and maintenance of existing products, for example in the construction industry, the automotive industry, the aerospace industry, the energy sector, for example for wind turbines, etc. The dispensing system 10 can, for example, be used for dispensing building materials, sealants, bonding materials, adhesives, coatings, coatings and / or protective coatings.

[0160] Fig. 9 A cross-sectional view of an alternative embodiment of a dispensing system 10 according to the invention is shown. In principle, the basic structural and functional configuration of this dispensing system 10 corresponds to the dispensing system 10 described above. Therefore, a detailed description of each single feature of this dispensing system 10 is omitted. Instead, for the sake of brevity, the main differences will be discussed.

[0161] The first major difference is that, in the construction shown here, rotation of the connector 16 results in pushing and pulling of the plug 50 along the longitudinal axis A toward and away from the cartridge 14 into or out of a use position in which the windows 64, 66 are within respective cartridge chambers 92, 94 of the cartridge 14. Thus, the connector 16 has a locking recess (internal thread 84) on the inner surface 97 that is configured to engage with a corresponding locking projection (external thread 88) of the plug 50.

[0162] Seals 56, 58 seal each of the outlet passages 52, 54, respectively, and thereby prevent fluid communication connection between material M, M' stored in the respective cartridge chamber 92, 94 and the respective window 64, 66 when the cartridge is not in the use position.

[0163] The second major difference is that in the alternative embodiment shown, the static mixer 12 comprises a housing 28 enclosing the mixing element 38 and the inlets 24, 26. Thus, the housing 28 acts as a protective cap for the mixing element 38 and the inlets 24, 26, protecting them from contamination. The housing 28 comprises a plurality of axially extending locking grooves 96 on its inner surface 97 in the region of the connector 16. The connector 16 comprises the same number of axially extending locking projections 98, each locking projection 98 being configured to engage with one of the locking grooves 96 of the housing 28 to rotationally secure the housing 28 to the connector 16. Thus, the rotation of the connector 16 into the use position can be caused by the rotation of the housing 28.

[0164] This means that it is preferred for this embodiment that the connector 16 has locking grooves 84 on its inner surface 97, which are configured to engage with corresponding locking projections 88 of the plug 50. In addition, the connector 16 has axially extending locking projections 98 on its outer surface, each of which is configured to engage with one of the locking grooves 96 of the housing (protective cap) 28 to rotationally fix the housing 28 to the connector 16. In order to minimize the risk of contamination, the overall construction should be seamless and smooth, with the housing 28 connected to the other components 14 and 16 only with internal components, without any external components.

[0165] Thus, an overall design is possible with a smooth seamless or only slightly overhanging transition from the barrel 14 to the mixer 12. Such a configuration is particularly preferred for dental and medical applications in order to reduce the risk of injury and contamination.

[0166] The housing 28 used as a protective cap may have a circular (with vertical grooves), oval, rounded triangular or rounded polygonal cross-sectional shape.

[0167] In order to be able to decouple the rotation of the connector 16 from the inlets 24, 26 of the static mixer 12, the internal components of the static mixer 12 (including in particular the protective disk 22, the inlets 24, 26 and the mixing element 38) are coupled to the housing 28 in an axially fixed but rotationally movable manner. In the embodiment shown, this coupling is achieved via at least one connecting protrusion 100 that holds the protective disk 22.

[0168] at last, Fig. 9 The housing 28 of the embodiment of FIG. 1 is configured to be fixed to the cartridge 14 via an additional fixing structure 99 , in particular in the form of a snap-fit ​​structure or threads, to prevent accidental removal of the static mixer 12 from the cartridge 14 .

[0169] Alternatively, it is also possible for the internal parts 38 , 22 etc. of the mixer 12 to be rotationally fixed in the housing 28 and to be tightened by means of a contact pressure which is generated when the mixer 12 is screwed onto the cartridge 14 .

[0170] Figures 10a to 10d Another type of dispensing system 10 is shown in different states of use. Fig.10a A perspective view of the dispensing system 10 is shown in a pre-connected position of a corresponding dispensing outlet 110 . Fig.10b A perspective view of the dispensing system 10 is shown in the connected position of the dispensing outlet 110 . Fig.10c A perspective view of the dispensing system 10 is shown in the use position of the dispensing outlet 110, and Fig.10d Shown along Fig.10c Cross-sectional view taken along section line A:A.

[0171] The dispensing system 10 includes a dispensing outlet 110 with a static mixer 12 and an IOR 20 disposed in a housing 28. The dispensing outlet 110 may be attached to a cartridge 14 via a swivel connection 160, as will be described below.

[0172] The connection structure 160 includes a barrel-shaped non-rotating joint 150 enclosing a pivotable barrel-shaped connector 152. The joint 150 is provided with an opening 150a for inserting the distributor 34 of the dispensing outlet 110. The connector 152 includes an inlet and outlet 152a for receiving the distributor 34 of the dispensing outlet 110. Fig.10a As shown in FIG. 1 , the opening 150a of the joint 150 and the outlet opening 152a1 of the inlet and outlet 152a are aligned with each other in the pre-connected state of the dispensing system 10, so that the distributor 34 can be inserted through the opening 150a into the inlet and outlet 152a extending through the bulk body 152b of the connector 152 (see FIG. 1 ). Fig.10a Arrow B).

[0173] When the distributor 34 is fully inserted into the inlet and outlet 152a of the connector 152, the dispensing outlet 110 can be rotated together with the connector 152 about the rotation axis of the connector 152 extending perpendicular to the longitudinal axis A of the dispensing outlet 110 (see Fig.10b By this rotation, the housing 28 enters the guide slot 150b in the joint 150, which has a smaller width than the distributor 34. Thus, the dispensing outlet 110 with the distributor 34 is fixed to the joint 150.

[0174] After being rotated 90° (at least in the illustrated embodiment), the inlets 24 and 26 of the distributor 34 connected to the dispensing outlet 110 are aligned with and connected to the corresponding outlet passages 52 and 54 of the cartridge 14, as shown in FIG. Fig.10dIn the illustrated embodiment, each of the inlets 24 and 26 is disposed within its own inlet opening 152a2 or 152a3 of the inlet and outlet 152a. The distributor 34 is completely rotated out of the opening 150a of the joint 150 so that the distributor 34 is held by the joint 150 within the inlet and outlet 152a of the connector 152 (see Fig.10c ). The dispensing outlet 110 is now in the use position and is ready to dispense materials M and M′ from the cartridge 14 .

[0175] Figures 11a to 11d Another further type of dispensing system 10 is shown in a different state of use. Fig.11a A perspective view of the dispensing system 10 is shown in a pre-connected position of a corresponding dispensing outlet 110 . Fig.11b The dispensing outlet 110 is shown in the connected position along Fig.11a Cross-sectional view taken along section line A:A. Fig.11c A perspective view of the dispensing system 10 is shown in the connected position of the dispensing outlet 110 . Fig.11d A perspective view of the dispensing system 10 is shown in the use position of the dispensing outlet 110 .

[0176] The dispensing system 10 includes a dispensing outlet 110 with a static mixer 12 and an IOR 20 disposed in a housing 28. The dispensing outlet 110 may be attached to a cartridge 14 via a sliding connection configuration 160, as will be described below.

[0177] The connection structure 160 includes a flat non-movable joint 150 enclosing a slidable connector 152. The joint 150 is provided with an opening 150a for inserting the protection disk 22 of the dispensing outlet 110. The connector 152 includes an inlet 152a for receiving the protection disk 22 of the dispensing outlet 110. Fig.11a As shown in FIG. 1 , the opening 150a of the joint 150 and the outlet opening 152a1 of the inlet and outlet 152a are aligned with each other in the pre-connected state of the dispensing system 10, so that the protective disk 22 can be inserted through the opening 150a into the inlet and outlet 152a extending through the bulk body 152b of the connector 152 (see FIG. 1 ). Fig.11a In this state, the inlets 24 and 26 of the dispensing outlet 110 are not aligned with the corresponding outlet passages 52 and 54 of the cartridge 14, as shown in FIG. Fig.11b In the illustrated embodiment, each of the inlets 24 and 26 is disposed within its own inlet opening 152a2 or 152a3 of the outlet 152a.

[0178] When the protection disk 22 is fully inserted into the inlet 152a of the connector 152, the dispensing outlet 110 can slide together with the connector 152 relative to the joint 150 perpendicular to the longitudinal axis A of the dispensing outlet 110 (see Fig.11c By this sliding, the housing 28 enters the guide slot 150b in the engaging portion 150, which has a smaller width than the protective disc 22. Thus, the dispensing outlet 110 with the protective disc 22 is fixed to the engaging portion 150.

[0179] After a predetermined amount of sliding movement, the inlets 24 and 26 of the protective disk 22 connected to the dispensing outlet 110 are aligned with and connected to the corresponding outlet passages 52 and 54 of the cartridge 14. In addition, the protective disk 22 is slid to engage with the engaging portion 150 around the guide slot 150b. Thus, the protective disk 22 is held by the engaging portion 150 in the inlet 152a of the connector 152 (see Fig.11d ). The dispensing outlet 110 is now in the use position and is ready to dispense materials M and M′ from the cartridge 14 .

[0180] Figures 12a to 12d Yet another type of dispensing system 10 is shown in a different state of use. Fig.12a A perspective view of the dispensing system 10 is shown in a pre-connected position of a corresponding dispensing outlet 110 . Figure 12b A perspective view of the dispensing system 10 is shown in the connected position of the dispensing outlet 110 . Fig.12c A perspective view of the dispensing system 10 is shown in the use position of the dispensing outlet 110, and Fig.12d Shown along Fig.12c Cross-sectional view taken along section line A:A.

[0181] The dispensing system 10 includes a dispensing outlet 110 with a static mixer 12 and an IOR 20 disposed in a housing 28. The dispensing outlet 110 may be attached to the cartridge 14 via an alternative swivel connection configuration 160, as will be described below.

[0182] The connection structure 160 includes a non-rotating joint 150 enclosing a rotatable connector 152. The joint 150 is provided with an opening 150a for inserting the distributor 34 of the dispensing outlet 110. The connector 152 includes an inlet and outlet 152a for receiving the protective disk 22 connected to the distributor 34 of the dispensing outlet 110. Fig.12a As shown in FIG. 1 , the opening 150a of the joint 150 and the outlet opening 152a1 of the inlet and outlet 152a are aligned with each other in the pre-connected state of the dispensing system, so that the protective disk 22 can be inserted through the opening 150a into the inlet and outlet 152a of the large body 152b extending through the connector 152 (see FIG. 1 ). Fig.12a Arrow B).

[0183] When the protection disk 22 is fully inserted into the inlet 152a of the connector 152, the dispensing outlet 110 can be rotated together with the connector 152 about the rotation axis of the connector 152 corresponding to the longitudinal axis A of the dispensing outlet 110 (see Figure 12b By this rotation, the protection disc 22 is at least partially rotated under the engaging section 150b of the engaging portion 150 having a smaller width than the protection disc 22. Thus, the dispensing outlet 110 with the protection disc 22 is fixed to the engaging portion 150.

[0184] After being rotated 90° (at least in the illustrated embodiment), the inlets 24 and 26 of the protective disk 22 connected to the dispensing outlet 110 are aligned with and connected to the corresponding outlet passages 52 and 54 of the cartridge 14, as shown in FIG. Fig.12d In the illustrated embodiment, each of the inlets 24 and 26 is disposed within its own inlet opening 152a2 or 152a3 of the outlet 152a. Now, the dispensing outlet 110 is in the use position and is ready to dispense the materials M and M' from the cartridge 14.

[0185] The IOR 20 includes an outlet 164 through which material is dispensed, wherein the outlet 164 is located at a first end 168 of a cannula 166 of the intraoral rotation tip (IOR) 20. The first end 168 is disposed opposite a second end 170 of the cannula 166, wherein the cannula 166 is connected to the inlet receptacle 158 of the IOR 20 at the second end 170.

[0186] The sleeve 166 includes a passage 174 for conducting material dispensed from the cartridge 14 via the static mixer 12 into the IOR 20 via the outlet 164 of the IOR 20 .

[0187] Figures 13a to 13c Another view of another intraoral rotation tip 20 is shown. Fig.13a , the IOR 20 is attached to the static mixer 12. The IOR 20 includes an inlet receptacle 138 for attaching a sleeve 166 to the dispensing outlet 12 and the static mixer 12, respectively.

[0188] The end 19 of the outer side 112 of the housing 22 is inserted into the inlet 118 .

[0189] The inlet 118 further comprises two orifices 124. These orifices 124 form part of the snap-fit ​​connection 30. At this point it should be noted that the snap-fit ​​connection can also be formed without these orifices 124.

[0190] Viewed from an inlet opening 126 of the inlet 118 , the inlet 118 comprises two circumferentially extending ribs 128 arranged at each of the apertures 124 , wherein the aperture 124 is arranged downstream of the respective circumferentially extending rib 128 when viewed from the inlet opening 126 .

[0191] When the IOR 20 is snap-fitted into place at the dispensing outlet 12 via the inlet receptacle 158, the two ribs 128 engage behind the circumferential lip 122. The IOR 20 is thereby axially fixed to the dispensing outlet 12.

[0192] The inlet 118 of the IOR 20 includes an inner surface 129 having a plurality of inner surface ribs 130 disposed therein, such as Figure 6b The inner surface ribs 130 extend parallel to each other and parallel to the longitudinal axis A.

[0193] like Fig.13c As indicated in FIG. 1 , the distribution outlet 12 has a passage 174 with the IOR 20 (see Fig.13a ) is aligned with the outlet 28, wherein the material to be dispensed exits the outlet 114 and subsequently exits the passage 174 via the sleeve outlet 164.

[0194] like Fig.13c As further indicated in FIG. 1 , the outer side 112 of the housing 22 includes one or more outer side ribs 132 disposed at the outer side 112. The outer side ribs 132 extend parallel to each other and parallel to the longitudinal axis A.

[0195] The inner surface ribs 130 are configured to engage with the outer side ribs 132. In this manner, the IOR 20 can be rotated about the longitudinal axis A and the dispensing outlet 12. The IOR 20 can be positioned relative to the dispensing outlet 12 depending on the engagement position.

[0196] In this manner, the IOR 20 of the dispensing outlet 12 may be positioned, for example, at a tooth of a patient to be treated, and the cartridge attached thereto may be rotated, for example, by a dental professional, to dispense material at a desired angle in a convenient manner.

[0197] At the portion of the sleeve 166 that is attached to the inlet receptacle 158 of the body 160 , the plate 156 is connected to the body 160 of the inlet receptacle 158 via the web 162 .

[0198] The plate 156 has a flat outer surface 172 that acts as a finger positioning aid during the dispensing process so that a user can securely hold the IOR 20 during dispensing, for example, at a patient's teeth.

[0199] The plate 156 is connected to the body by one or more webs of material 162, with the present example having three such webs 162. At this point it should be noted that between two and six webs 162 may be provided.

[0200] Finally, it should be pointed out that the above-described constructions may be modified and / or combined with one another without departing from the scope of protection defined by the appended claims.

[0201] List of reference numerals:

[0202] 10 Distribution System

[0203] 12. Static mixer

[0204] 14 Barrel

[0205] 16 Connectors

[0206] 18 Closure

[0207] 19 end

[0208] 20 Intraoral Rotation (IOR)

[0209] 21 end

[0210] 22 Protection plate

[0211] 24 Entrance

[0212] 26 Entrance

[0213] 28 Shell

[0214] 30 Shoulder section

[0215] 32 Closure installation part

[0216] 34 Distributor

[0217] 36 Opening

[0218] 38 Mixing elements

[0219] 40 Exit

[0220] 42 Exit

[0221] 44 Top side

[0222] 46 bottom end

[0223] 48 Top

[0224] 50 Plug element

[0225] 52 Exit Passage

[0226] 54 Exit Passage

[0227] 56 Seals

[0228] 58 Seals

[0229] 60 Chamber

[0230] 62 Chamber

[0231] 64 Windows

[0232] 66 Window

[0233] 68 Connection Area

[0234] 70 12 outer surface

[0235] 72 Connection protrusion

[0236] 74 Connecting shoulders

[0237] 76 Receiving section

[0238] 78 Receiving groove

[0239] 80 receiving abutment portion

[0240] 82 Casing

[0241] 84 Internal thread

[0242] 86 Inner surface of connector 16

[0243] 88 External thread

[0244] 90 50 outer surface

[0245] 92 Barrel chamber

[0246] 94 Barrel chamber

[0247] 96 Locking groove

[0248] 97 Inner surface of housing 28

[0249] 98 Locking protrusion

[0250] 99 Fixed structure

[0251] 100 Connection protrusions

[0252] 110 Allocation Exit

[0253] 112 Outside

[0254] 114 12 exit

[0255] 116 Bayonet connector

[0256] 118 Entrance

[0257] 120 Snap-fit ​​connection

[0258] 122 Lip

[0259] 124 Orifice

[0260] 126 Entrance opening

[0261] 128 Circumferential rib

[0262] 129 Inner surface

[0263] 130 Inner surface rib

[0264] 132 lateral rib

[0265] 134 access

[0266] 136 Positioning slot frame

[0267] 138 Grooves

[0268] 140 protrusion

[0269] 142 Energy Carrier

[0270] 144 Boss

[0271] 146 Inlet manifold

[0272] 148 channels

[0273] 150 Joint

[0274] 150a Opening

[0275] 150b Guide slot / engagement section

[0276] 152 Connectors

[0277] 152a Entrance and Exit

[0278] 152a1 Exit opening

[0279] 152a2 Entrance opening

[0280] 152a3 Entrance opening

[0281] 152b body

[0282] 154 IOR end

[0283] 156 Plate

[0284] 158 Entrance Seat

[0285] 160 158 body

[0286] 162 Connect 156 to the web of 160

[0287] 164 Exit

[0288] 166 Casing

[0289] 168 The first end of 166

[0290] The second end of 170 166

[0291] 172 Flat Surface

[0292] 174 access

[0293] A Longitudinal axis

[0294] B Arrow

[0295] M,M' material, material

Claims

1. A dispensing system (10) comprising a dispensing outlet (110), a cartridge (14), a connector (16) and a plug element (50) arranged in the connector (16) and at the cartridge (14), wherein: The connector (16) is arranged at the cartridge (14), and the dispensing outlet (110) is separate from the connector (16) and from the cartridge (14), and wherein the connector (16) is capable of being locked to the cartridge (14) by rotating the connector (16) around the longitudinal axis (A) into a use position, wherein the rotation of the connector (16) into the use position causes the plug element (50) to move axially along the longitudinal axis (A) relative to the cartridge (14) and the dispensing outlet (110).

2. The dispensing system according to claim 1, wherein: The rotation of the connector (16) locks the dispensing outlet (110) to the connector (16).

3. The dispensing system (10) according to claim 1 or claim 2, wherein: The rotation of the connector (16) with the installed dispensing outlet (110) locks the connector (16) to the cartridge (14).

4. Dispensing system (10) according to any one of the preceding claims, wherein: The axial movement into the use position allows material (M, M') to flow from the cartridge (14) into the dispensing outlet (110).

5. Dispensing system (10) according to any one of the preceding claims, wherein: The dispensing outlet (110) includes an outlet opening and a respective inlet (24, 26) disposed spaced apart from the outlet opening along a longitudinal axis (A).

6. Dispensing system (10) according to any one of the preceding claims, wherein: The dispensing outlet (110) includes at least one of an intra-oral rotating tip (IOR, 20) and a static mixer (12).

7. The dispensing system (10) according to claim 6, wherein: The cartridge (14) is a two-component cartridge (14), and wherein the static mixer (12) comprises a distributor (34) for directing the respective material flows from the cartridge (14) via the respective inlets (24, 26) to a mixing element (38) of the static mixer (12).

8. Dispensing system (10) according to any one of claims 6 and 7, wherein: The static mixer (12) comprises a housing (28) enclosing the mixing element (38) and the inlet (24, 26), Therein, the housing (28) comprises on its inner surface (97) at least one locking groove (96), which in particular extends axially, The connector (16) comprises at least one locking protrusion (98) extending in an axial direction, wherein the locking protrusion (98) is configured to engage with a locking groove (96) of the housing (28) for rotationally fixing the housing (28) to the connector (16).

9. The dispensing system (10) according to claim 8, wherein: Internal components of the static mixer (12), in particular the inlet (24, 26) or the static mixer (12), are coupled to the housing (28) in an axially fixed but rotationally movable manner.

10. Dispensing system (10) according to any one of claims 8 and 9, wherein: The housing (28) is configured to be fixed to the cartridge (14) via a further fixing formation (99), in particular in the form of a snap-fit ​​formation or a thread.

11. Dispensing system (10) according to claims 7 to 10, wherein: The distributor (34) has a non-circular outer cross-section, preferably in a plane perpendicular to the longitudinal axis (A).

12. Dispensing system (10) according to any one of the preceding claims, wherein: The connector (16) has an opening (36) formed in a top end portion (48) thereof, wherein the opening has a non-circular inner cross-section, wherein the dispensing outlet can be inserted into the connector (36) via the opening (36).

13. Dispensing system (10) according to claim 11 and claim 12, wherein: The non-circular outer cross-section of the distributor (34) is formed to be complementary in shape to the non-circular inner cross-section of the opening (36).

14. Dispensing system (10) according to any one of claims 6 to 13, wherein: The static mixer (12) comprises a disk (22) arranged at a housing (28) of the static mixer (12), wherein the disk (22) is arranged at a distance from a top side (44) of the distributor (34) along the longitudinal axis (A).

15. The dispensing system (10) according to claim 14, wherein: The spacing between the disk (22) and the distributor (34) corresponds to the thickness of the wall of the connector (26) at the top end (48), optionally wherein, when the connector (36) rotates relative to the static mixer (12), the static mixer (12) is clamped to the barrel (14) via the connector (16) in the spacing between the disk (22) and the distributor (34).

16. Dispensing system (10) according to any one of the preceding claims, wherein The dispensing outlet includes a housing (28) having a connection region (68) configured to be received within an IOR (20) / receiving portion (76) of the IOR (20).

17. Dispensing system (10) according to any one of the preceding claims, wherein The plug (50) includes external threads (88) that interact with internal threads (84) of the connector (16) to cause the axial movement of the plug (50).

18. Dispensing system (10) according to any one of the preceding claims, wherein The plug (50) comprises two outlets (40, 42) connected to two corresponding windows (64, 66) acting as inlets from the cartridge (14), the outlets (40, 42) having corresponding seals (56, 58) arranged downstream of the windows (64, 66) along the longitudinal axis (A), wherein the seals are optionally arranged to prevent fluid communication connection between the corresponding cartridge chambers (92, 94) and the corresponding windows (64, 66) when the connector (16) is not in the use position.

19. Dispensing system (10) according to any one of the preceding claims 1 to 17, wherein: The plug (50) comprises two outlets (40, 42) connected to two corresponding windows (64, 66) acting as inlets from the cartridge (14), each outlet having a corresponding seal (56, 58) arranged at the same height as the window (64, 66) along the longitudinal axis (A), wherein the seal is optionally arranged to avoid fluid communication connection between the corresponding cartridge chamber (92, 94) and the corresponding window (64, 66) when the connector (16) is not in the use position.

20. Dispensing system (10) according to any one of the preceding claims, wherein The rotation of the connector (16) into the use position causes an axial lifting movement of the plug element (50) along the longitudinal axis (A) away from the cartridge (14) and towards the dispensing outlet (110).

21. Dispensing system (10) according to any one of the preceding claims 1 to 19, wherein: The rotation of the connector (16) into the use position causes an axial pushing movement of the plug element (50) along the longitudinal axis (A) towards the cartridge (14) and away from the dispensing outlet (110).

22. Dispensing system (10) according to any one of the preceding claims, in, The internal geometry of the housing (28) of the dispensing system (10) corresponds at least partially to the external geometry of the connector (16) and / or has a locking device to produce a mechanical connection so as to releasably connect the housing (28) to the connector (16) and directly transmit the rotational movement of the housing (28) on the connector (16) in order to close or open the plug element (50).

23. Dispensing system (10) according to any one of the preceding claims, in, The plug element (50) is configured to move in a direction toward the cartridge (14) when axially moved into the use position by rotation to provide fluid communication between an outlet passage (52, 54) of the cartridge (14), a window (64, 66) of the plug element (50) and an inlet (24, 26) of the dispensing outlet (110), In particular, the outlet passage (52, 54) of the cartridge (14) is provided with a seal (56, 58), which closes the window (64, 66) of the plug element (50) in its first position and opens the window (64, 66) of the plug element (50) in its second position.

24. A dispensing outlet (110) configured for use in a dispensing system (10), the dispensing outlet comprising at least one of a static mixer (12) and an IOR (20), wherein: The IOR (20) can be attached at the outside of the housing (28) of the static mixer (12) such that the IOR (20) can rotate relative to the static mixer (12) but cannot be moved axially.

25. A dispensing system (10) comprising a dispensing outlet (110), a cartridge (14) and a connector (152), wherein: The connector (16) is coupled to the cartridge (14), wherein the dispensing outlet (110) is separate from the connector (152) and from the cartridge (14), wherein the dispensing unit (110) is capable of engaging with and locking to the connector (152) and of entering a use position by a translational movement and a subsequent rotational or translational movement of the dispensing outlet (110) relative to the cartridge (14).

26. The dispensing system (10) of claim 25, wherein: The connector (152) is disposed within a joint (150) that is non-movably coupled to or forms a part of the cartridge (14).

27. Dispensing system (10) according to claim 25 or 26, wherein The connector (152) comprises an inlet (152a) for receiving a section of the dispensing outlet (110), in particular a distributor (34) or a protective disc (22), to connect the dispensing outlet (110) to the connector (152).

28. Dispensing system (10) according to any one of claims 25 to 27, wherein: The connector (152) is rotatable relative to the cartridge (14) about an axis perpendicular to the longitudinal axis (A) of the dispensing outlet (110) for locking the dispensing outlet (110) to the cartridge (14).

29. Dispensing system (10) according to any one of claims 25 to 28, wherein: The connector (152) is slidable vertically relative to the cartridge (14) about the longitudinal axis (A) of the dispensing outlet (110) for locking the dispensing outlet (110) to the cartridge (14).

30. Dispensing system (10) according to any one of claims 25 to 29, wherein: The connector (152) is rotatable relative to the cartridge (14) about the longitudinal axis (A) of the dispensing outlet (110) for locking the dispensing outlet (110) to the cartridge (14).

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