KR20110046250A - Cartridge with integrated sealing cap - Google Patents

Abstract

PURPOSE: A cartridge is provided to store filler materials in the inside of the cartridge, and to partially distribute the filler materials before sealing a discharging opening. CONSTITUTION: A cartridge includes storage chambers(6,7) and a neck unit(2). The neck unit includes end units(16,17) of a discharging path with a discharging opening capable of being sealed by a sealing cap. The neck unit is surrounded by a shock absorbing element(20). A connection element(32) formed with a hinge, maintain the connection condition of the cartridge.

Description

Cartridge with integrated sealing cap {CARTRIDGE WITH INTEGRATED CLOSURE CAP}

The present invention particularly relates to a cartridge used for storing a plurality of components. This type of cartridge contains a filler material that is dispensed for a specific use. The cartridge is particularly suitable for simultaneously dispensing two or more components that can be mixed before use.

Conventional cartridges are generally used to process small amounts of filler material. The simplest embodiment of the cartridge is a tube with a neck. The tube functions as a storage chamber for the storage of filling material. The tube runs through the neck at the dispensing end. A piston capable of reciprocating in the tube is located at the end disposed opposite the dispensing end, the so-called conveying end. The neck portion includes a discharge passage, which is through the discharge opening which can discharge the filling material continuously in the form of a jet or in the form of droplets discontinuously. The user displaces the piston in the direction of the neck to dispense the filling material. Filling material is discharged from the cartridge through the discharge passage of the neck portion, and is sprayed at the position desired by the user. Many alternative means can be used to fill the cartridge with filler material.

According to a first alternative means, the piston is brought to a position taken after the end of the delivery process, i. The neck portion of the cartridge is placed in a reservoir filled with fill material. In the meantime, the piston is moved away from the discharge opening by the filling material so that the filling material enters the storage chamber from the reservoir. As the piston travels in the direction of the delivery end of the cartridge, the storage chamber continues to be filled with filler material until the piston end position reaches the delivery end.

According to a second alternative means, the piston is removed from the storage chamber and the neck portion of the cartridge is immediately sealed when the supply of filling material is low, or kept temporarily open for the discharge of air contained in the storage chamber. Can be. Fill material enters the storage chamber from the delivery end. The filling process can take place by means of a filling device. In the simplest form of filling device, there is a hose docked at the delivery end of the cartridge and connected to the reservoir. The storage chamber of the cartridge is filled with filling material by a pumping device connected to the hose. After the filling process is finished, the piston is put back into the storage chamber so that the filling material in the storage chamber is surrounded between the piston and the still sealed discharge opening. The cartridge is then ready for use and can be stored and transported in a filled state.

Alternatively, it is known to carry out the discharge process through the inner wall of the piston and / or cartridge during the filling process. In this case, the discharge opening can be sealed in advance by a closure cap, for example, screwed onto the neck portion including the discharge opening, as disclosed in EP 0 578 897. Alternatively, a closure cap may be provided which is integrally formed with the cartridge neck portion, as disclosed in EP 1 491 460 A2. This closure cap is connected to the discharge opening by a predetermined breakage point so that the discharge opening remains sealed for a long time until the predetermined break point is torn off from the sealing cap.

A combination of the closure cap and the threaded plug according to EP 1 491 460 A2 is disclosed in US Pat. No. 4,402,417. This solution has the disadvantage that the threaded plug is an independent element in the cartridge and must be manufactured separately. In addition, the threaded plug must be removed or at least partially opened to open the cap. The cap is connected to the neck portion of the cartridge by a restraint portion formed by a predetermined break point. Also, as in EP 1 491 460 A2, a cap with a predetermined break point cut once is a lossable part. Although the cap can be secured to the threaded stopper by finger elements after the break point has been cut, the filled material is no longer fluid tight, so that the filling material is in particular a discharge opening. If positioned above, it may be discharged.

It is therefore an object of the present invention to provide a solution which can reseal the outlet opening of a cartridge after some dispensing of the filler material. The sealing cap provided for this purpose may be integral or may remain connected to the cartridge in such a way that it is not lost in the open state.

The object of the present invention is achieved by a cartridge comprising a storage chamber for containing the filling material, and a neck portion including a discharge passage for discharging the filling material so that the filling material can be discharged from the storage chamber through the discharge passage. The neck portion includes an end of the discharge passage, the discharge opening is disposed at the end of the discharge passage, and the discharge opening can be sealed by a closure cap. The sealing cap is integrally connected to the cartridge. The closure cap engages the end of the discharge passage so that the discharge opening is sealed several times, thereby allowing the filling material to be retained in the discharge passage. The closure cap remains connected to the cartridge by the connecting element when the discharge opening is opened such that the closure cap is opened, that is, the closure cap is removed at the discharge end including the discharge opening.

The cartridge includes a storage chamber for receipt of the fill material, the volume of the storage chamber being variable and including a cartridge neck including a discharge passage for discharge of the fill material so that the fill material can be dispensed from the storage chamber through the cartridge neck part. Can be. The cartridge neck portion is surrounded by a shock absorbing element formed integrally with the cartridge neck portion. In particular, the shock absorbing element is adapted such that this second end projects away from the neck portion. In this way, since the impact force can be reduced by at least the deformation of the second end, the neck portion can be kept intact from impact.

An intermediate space is formed by the gap between the jacket and the neck, and a housing element can be accommodated in the intermediate space. In particular, if the cartridge consists of a multicomponent cartridge, the mixer may be connected to the neck, or connected to the neck. Each of the discharge passages is through a mixer. The mixer is received in a corresponding housing element that is inserted on the neck portion or plugged into the neck portion. This housing element will hereinafter be referred to as a mixer housing. The mixer housing can be connected to the neck via a thread. The discharge passage is formed with a male thread for screwing the housing element. However, the connection can also be made by a bayonet connection, latch connection or snap connection, which is not illustrated. The mixer may in particular consist of a static mixer. The static mixer includes a number of flow-deflecting installations disposed within the mixer housing. The use of a mixer is particularly desirable when the cartridge is used to mix a fill material consisting of a plurality of flowable components.

According to one preferred embodiment, the jacket is arranged around the neck concentrically. In general, the neck portion is a rotationally symmetrical element. The jacket may also consist of a rotary symmetrical element. The common axis of the neck portion and the jacket is the longitudinal axis of the neck portion. The mixer housing has a maximum diameter size that is smaller than the inner diameter of the jacket and can therefore be rotated within the jacket. Alternatively, the mixer housing may be inserted, for example, in plug-in connections, latch connections, snap connections or bayonet connections formed in the jacket. In order to install the mixer housing in a precisely defined position relative to the cartridge, encoding elements can be provided in particular, as disclosed in EP 7 390 913.

Preferably, the jacket of the shock absorbing element has a substantially cylindrical inner wall. Such a cylindrical inner wall can be easily manufactured with the corresponding injection molding tool, allowing the removal of the tool for making the neck portion. For this purpose, the jacket comprises an opening so that the tool can be removed through the opening after completion of the neck portion.

According to a preferred embodiment, the shock absorbing element and the closure cap are integral with the neck portion, which means that the shock absorbing element and the closure cap are made of a single element together with the neck portion and the entire cartridge. This functional integration is not known from the solution according to the prior art, since two or more elements were required despite the fact that there has been a cartridge comprising only one component for this purpose. The first element according to the prior art comprises a cartridge having a neck portion. The second element includes a closure cap located on the cartridge, which may optionally include a small cross-section discharge opening that allows the user to dispense a small amount of the desired component.

To further protect the closure cap, the shock absorbing element projects above the closure cap in the closed state. Thus, the closure cap as well as the neck portion of the container are protected from impact. In addition, since no force is transmitted to the closure cap by the shock absorbing element, the possibility of the accidentally opening of the closure cap by impact is very low, which means that the filling material can hardly be discharged from the cartridge.

The closure cap can be connected to the cartridge, in particular the shock absorbing element, by means of a connecting element consisting of a hinge element. An advantage of using a connecting element is that the discharge opening can be sealed as repeatedly as desired. That is, the user can optionally dispense a portion of the filling material located in the cartridge, close the closure cap, and store additional portions of the filling material in the cartridge for later use.

The closure cap may include an edge portion positioned on the neck portion when closing the closure cap. The outer diameter of the edge portion may be larger than the outer diameter of the neck portion. The edge can in particular be formed as a protrusion that can extend over at least a portion of the periphery of the closure cap. The protrusion 39 may surround at least a portion of the neck 2. In particular, the outer diameter of the edge portion may be larger than the outer diameter of the neck portion.

A fastening element is disposed at the edge and can receive a flap of the closure cap to keep the closure cap closed.

Preferably, the connecting element can be configured to be in the open position under no load. When the closure cap is changed to the closed state, the flap engages the connecting element to keep the closure cap closed.

The closure cap has a receiving element that engages the end of the discharge opening when the discharge opening is sealed. To this end, the closure cap has one or more ring-shaped grooves in which an end of the neck portion which forms the end of the discharge passageway when closing the closure cap can be accommodated. The end of the neck portion is received in a corresponding groove. If a plurality of discharge passages are formed, the neck portion has a plurality of ends accordingly. In addition, in the closed state, a small compressive force is exerted on the end of the neck portion by the closure cap, so that a seal against the discharge of the filling material may appear. In addition, a labyrinth forming a filter path may be formed by the groove wall. This filter path has an opening width that is too small such that the filling material cannot move into the gap between the groove and the end of the neck portion.

Alternatively, the end of the discharge passage may have a curvature directed in the longitudinal axis direction of the discharge passage. Also, the wall thickness at the end of the discharge passage may be smaller than the upstream wall thickness at that end. When the closure cap is closed, the curvature of the discharge passage can be increased. Thus, the end of the discharge passage is bent in the longitudinal direction when accommodated in the groove of the closure cap. The force increased by this deflection degree is exerted on the inner wall of the groove so that the sealing effect appears.

Alternatively, the groove can have a conical cross section, so that when in the closed state, a sealing connection is made between the end of the neck portion forming the end of the discharge passageway and the closure cap. The end of the neck portion is fixed between the two conical side walls of the groove so that the filling material cannot pass the clamping points at which the groove side wall of the discharge passage end contacts the sealing cap.

The volume of the storage chamber can vary. When the filling material is dispensed, the volume of the storage chamber is reduced by the compressive force applied to the wall because the wall of the storage chamber is made of an elastic material. The storage chamber can be formed, for example, as a tube or tubular bag. Alternatively, the volume of the storage chamber can be changed because the piston reciprocates along the inner wall of the storage chamber.

According to one preferred embodiment, the cartridge according to any one of the foregoing embodiments comprises at least one of a first partial chamber and a second partial chamber. The first partial chamber may receive the first component and the second partial chamber may receive the second component. The first partial chamber is through the first discharge passage, the second partial chamber is through the second discharge passage, the first discharge passage comprises a first discharge opening, and the second discharge passage comprises a second discharge opening. do. In the following, such a cartridge may be referred to as a multicomponent cartridge. As an additional advantage of a multicomponent cartridge, each of the components can be stored separately in the cartridge, but if desired, by opening the closure cap and installing a mixer in each of the outlet openings, both components can be discharged simultaneously, It is mixed at the same time.

The first discharge passage and the second discharge passage may be disposed in the neck portion. The first discharge passage is through a first discharge opening disposed at the first end of the neck portion. The second discharge passage is through a second discharge opening disposed at the second end of the neck portion. The first end of the neck portion may extend within the second end of the neck portion such that the second end is disposed in a ring shape around the first end. In particular, the first end may be disposed concentrically with the second end.

Alternatively, the second end may be disposed next to the first end. The first end and the second end are separated from each other by a partition wall.

In each case, the second end is received in the neck because the neck has a rotationally symmetrical outer surface, in particular a cylindrical or conical outer surface. As an advantage of this, a fastening means for fastening the mixer may be formed on the outer surface of the neck portion. To achieve this, in particular the male threads described above can be formed.

According to a particularly preferred embodiment, the first discharge opening is arranged coaxially to the second discharge opening, and the first discharge passage is disposed in the second discharge passage while being separated from the second discharge passage by the intermediate wall. In this example, the intermediate wall is arranged concentrically with the jacket of the neck portion. Thus, the first component flows inside the intermediate wall delimiting the first discharge passage.

The second component flows outside the intermediate wall through the second discharge passage, which is arranged in a ring shape around the first discharge passage.

Alternatively, the first discharge passage can be arranged next to the second discharge passage. The first discharge opening is disposed next to the second discharge opening, and the first discharge passage is disposed next to the second discharge passage while being separated from the second discharge opening by the intermediate wall.

According to one variant, the first discharge passage may be received in the first neck portion and the second discharge passage may be received in the second neck portion. Each neck portion of the cartridge may consist of a tubular stub that includes a respective discharge passage. The first discharge passage is connected to the first partial chamber and the second discharge passage is connected to the second partial chamber.

In this case, the mixer is installed on the first neck portion and the second neck portion so as to be connected to the discharge passage existing in each neck portion, so that the first component and the second component are only combined and mixed in the mixer.

According to an alternative embodiment, the discharge passage extends within a single neck portion. In this case, the neck portion also includes a partition wall, which divides the cross-sectional area of the neck portion into two. Depending on the preferred quota of components in the mixer, the cross-sectional areas of the two parts can be the same or different from each other. Of course, multiple partitions may also be provided. The partition wall divides the cross section of the neck into individual segments or sectors so that the discharge passages can extend substantially parallel to each other.

Each discharge passage is supplied from a storage chamber. As such, the multicomponent cartridge includes a plurality of partial chambers. According to one preferred embodiment, the storage chamber comprises a first partial chamber comprising a first flowable component and a second partial chamber comprising a second flowable component. According to this embodiment, a cartridge can be used to process two or more flowable components.

The partial chambers of the multicomponent cartridge may be arranged next to each other, or the first storage chamber may be disposed in the second storage chamber.

Each storage chamber may be arranged with a discharging element capable of dispensing the fill material from the storage chamber.

In an embodiment of the cartridge as a multicomponent cartridge for delivering multiple flowable components simultaneously, the discharge element comprises a first piston and at least one second piston. The first piston is movably received in the first partial chamber and the second piston is movably received in the second partial chamber such that when one or more of the first piston or the second piston is actuated, the first flowable component and The second flowable component may be dispensed simultaneously.

According to one preferred embodiment, the first piston and the second piston can be actuated by a plunger. The plunger may be integrally formed with the first piston or the second piston. The plunger may be part of an evacuation device such as an expulsion gun.

The storage chamber or the first partial chamber and the second partial chamber can be at least partially transparent such that the fill level can be monitored. In particular, since the housing is made of a transparent material, for example a transparent plastic, when the cartridge is being filled, the user can visually see how much of the filling material is already in the storage chamber. In the same way, one can ascertain how high the quota of the first flowable component or the second flowable component for each of the first chamber or the second chamber is in the fill volume. An instrument is mounted on the outer surface of the housing in the storage chamber or in the region of the first or second partial chamber, which provides the user with an indication of the filling volume of the filled material already filled.

Thus, if only part of the filling volume is needed, it is also possible to fill only part of the cartridge. For example, the use of an adhesive or sealant is mentioned as an example for such a use. Depending on the size of the point of adhesion or point to be sealed, the cartridge can be accurately filled with the amount of filler material required for this or the number of flowable components required at the point of attachment or point of sealing.

1 is a view showing the neck portion of the cartridge according to the first embodiment of the present invention.
2 is a side view of the cartridge.
3 is a front view of the cartridge.
4 is a front view of the neck portion of the cartridge.
5 is a cross-sectional view of the neck portion of the cartridge of FIG. 4.
6 is a cross-sectional view of the neck portion of the cartridge.
7 is a cross-sectional view of the neck portion of the cartridge of FIG. 4 offset by 90 ° with respect to the cross section according to FIG. 5.
8 is a side view of the neck portion of the cartridge of FIG. 4.
9 is a view of a cartridge in which a mixer is disposed.
10 is a sectional view of the cartridge in which the mixer is disposed.
11 is a partial cross-sectional view of a cartridge containing a fill material.

Hereinafter, the present invention will be described with reference to the drawings.

1 shows a first embodiment of a cartridge 1 according to the invention capable of handling a filling material 15 consisting of a plurality of components. The cartridge 1 has a first partial chamber 6 for the reception of the first component 8 of the filling material 15 and a second partial chamber for the reception of the second component 9 of the filling material 15. A storage chamber 5 (see FIG. 11) consisting of 7). The storage chamber 5 has a discharge end 28 for dispensing the filling material 15 and a transfer end 29 disposed opposite the discharge end 28, as seen in FIG. 2 or FIG. 3. Can be. Thus, the storage chamber 5 extends between the delivery end 29 and the discharge end 28 in a tubular section according to FIG. 2. The storage chamber 5 is comprised of a first partial chamber 6 and a second partial chamber in which the filling material 15 is contained in the storage chamber 5, as shown in FIG. 11, or in which the two components 8, 9 correspond. It is surrounded by a housing 34 so that it can be accommodated in 7. Since the storage chamber 5 comprises a neck 2 in which the discharge passages 11 and 12 are located, the filling material can be discharged from the storage chamber 5 in a controlled manner. The first discharge passage 11 located in the second discharge passage 12 is shown in FIG. 1. Thus, the first discharge passage 11 is arranged substantially coaxially to the second discharge passage 12, which can be best seen in FIG. 5. The discharge passage 12 according to FIG. 6 or 1 or the first discharge passage 11 and the second discharge passage 12 according to FIGS. 1 to 5 or 7 to 10 have corresponding discharge openings 10, 14. Through). These discharge openings 10, 14 are sealed by a closure cap 13. The delivery end 29 side of the cartridge may be sealed by the sealing element shown in FIG. 3 or 11. The closure element may consist of an expulsion element that can be displaced in the storage chamber, for example the pistons 3, 4. When the sealing cap 13 is closed so that the sealing element is positioned at the delivery end 29, the filling material 15 can be placed in the storage chamber 5 and stored for at least a limited time.

FIG. 2 shows a side view of the cartridge 1 according to FIG. 1 for a number of components. In FIG. 2 only the first partial chamber 6 for the first component 8 is shown, while the second partial chamber is hidden. Of course, if the mixing ratio is not 1: 1, the volume of the two partial chambers may be different, that is to say that one of the two partial chambers may have a larger volume than the other one.

3 shows a front view of the cartridge shown in partial sectional view. The parts of the cartridge already described with reference to FIG. 1 will no longer be considered here. Referring to the cross section, it is clearly understood that the first partial chamber 6 is separated from the second partial chamber 7 so that the two components 8, 9 are not in contact with each other. In general, these components interact at the moment of contact with each other, so that a chemical reaction can occur. Usually, the interaction of the components is an effect necessarily occurring in use, but such interaction is undesirable unless the components are used within the scope of the intended use.

As shown in FIG. 5 or FIG. 6, the first partial chamber 6 and the second partial chamber 7 are each through discharge passages 11, 12 arranged inside the neck portion 2 of the cartridge. .

As shown in part in FIG. 3, a discharge element 30 can be arranged in each of the partial chambers 6, 7 to dispense the corresponding flowable component 8, 9 from the partial chambers 6, 7. According to FIG. 3, the discharge element 30 consists of a first piston 3 and a second piston 4. In FIG. 11 only the piston 3 is shown which is installed to be received in the storage chamber 5.

The first piston 3 is movably received in the first partial chamber 6, and the second piston 4 can be movably received in the second partial chamber 7, so that the first piston 3 Alternatively, if at least one of the second pistons 4 is in motion, the first flowable component 8 and the second flowable component 9 can be dispensed simultaneously. For this purpose, the first piston 3, the second piston 4 and the plunger (not shown) are made in one piece or at least connected to each other by a coupling element such that they can be moved together.

The first piston 3 and the second piston 4 comprise at least one sealing element 41, which may in particular consist of a sealing lip. By this, leakage of the components 8, 9 can be prevented so that the components can be stored in the partial chambers 6, 7.

4 shows a front view of the neck portion 2 of the cartridge 1 according to one of FIGS. 1 to 3. The neck portion 2 includes a first discharge passage 11 and a second discharge passage 12. Two discharge passages 11, 12 are used to simultaneously distribute the first component 8 and the second component 9. The neck 2 is surrounded by a shock absorbing element 20. The shock absorbing element 20 encloses a part of the neck 2. The shock absorbing element 20 includes a jacket 23. If the neck part 2 and the shock absorbing element 20 are integrally formed, for example by an injection molding process, the tool is provided between the neck part 2 and the shock absorbing element for the production of the neck part as well as any connecting element. Can be inserted into the intermediate space within the shock absorbing element 20. Thus, the shock absorbing element comprises one or more openings 26, which are preferably formed in the jacket 23.

5 shows a cross-sectional view of the neck portion 2 of the multicomponent cartridge according to FIG. 4, and FIG. 6 shows a cross-sectional view of the neck portion of the cartridge containing the filling material.

The cartridge 1 comprises storage chambers 5, 6, 7 for the reception of the filling material 8, 9, 15 and discharge passages 11, 12 for the discharge of the filling material 8, 9, 15. Including the neck 2, the filling material 8, 9, 15 can be dispensed from the storage chambers 5, 6, 7 through the discharge passages 11, 12. Fill material 8, 9, 15 is dispensed through discharge openings 10, 14 disposed at ends 16, 17 of discharge passages 11, 12. The neck portion 2 includes a first end 21, a second end 22 and a jacket 23 extending between the first end 21 and the second end 22 connected to the neck 2. It is surrounded by a shock absorbing element 20, the jacket 23 and the second end 22 is arranged at a predetermined distance from the neck portion (2).

Preferably, the second end 22 protrudes off the neck 2 so that, when subjected to an impact, only contact with the shock absorbing element 20 occurs, but the neck 2 located therein is It remains intact.

An intermediate space in which the housing element 25, for example the mixer housing 42, can be accommodated is formed between the jacket 23 and the neck 2.

Also, the neck portion may be composed of a plurality of tubular stubs (not explicitly shown) according to one embodiment. A first tubular stub and a second tubular stub are provided respectively for a two component cartridge. The first tubular stub and the second tubular stub may each include a first sealing element and a second sealing element to receive a first collection element or a second collection element, respectively. Each of the collecting elements incorporates a mixer, which may be connected to a plurality of discharge passages of the cartridge through the collecting element. Such cartridges are disclosed, for example, in EP 0 730 913.

Multiple discharge passages can be arranged coaxially with each other, in which connection the term coaxial outlet will be frequently used. As shown in FIG. 5, the discharge passage 11 is located in the discharge passage 12. That is, the discharge passage 12 surrounds the discharge passage 11.

FIG. 7 is a sectional view of the neck portion of the cartridge of FIG. 4, offset by 90 ° with respect to the sectional view according to FIG. 5, and including the longitudinal axis of the neck portion 2. The shock absorbing element 20 is integrated with the neck 2. The neck portion 2 includes a first discharge passage 11 and a second discharge passage 12. The first discharge passage 11 is through the first discharge opening 10 and the second discharge passage 12 is through the second discharge opening 14. The first discharge opening 10 is arranged at the first end 16 of the first discharge passage 11. The second discharge opening 14 is arranged at the second end 17 of the second discharge passage 12.

A closure cap 13 is provided which can seal the two discharge openings 10, 14. The closure cap comprises a first receiving element 18 and a second receiving element 19. According to the view of FIG. 7, the first receiving element 18 and the second receiving element 19 consist of grooves. These grooves are adapted to receive the corresponding ends 16, 17 of the discharge passage when the closing cap 13 seals the discharge passages 11, 12.

The closure cap 13 is connected to the cartridge 1, the neck 2 or the shock absorbing element 20 by a connecting element 32. The closure cap 13 includes a margin 35, which is located on the shoulder 36 of the shock absorbing element 20 when closed. The edge 35 can also be located on the neck 2 when the closure cap 13 is closed.

Preferably, the edge 35 does not contact the inner wall 47 of the shock absorbing element 20. Thus, the shock absorbing element 20 can be deformed without disturbing without transmitting deformation to the closure cap 13 when subjected to impact.

In particular, the connecting element 32 may consist of a hinge element. The hinge element forms a permanent connection between the closure cap 13 and the cartridge 1, in particular the neck portion 2 of the cartridge or between the closure cap 13 and the shock absorbing element 20, so that the closure cap is Stays permanently connected to the cartridge in the closed position.

The connecting element 32 is elastic. In order to connect the closure cap 13 for sealing the corresponding discharge openings 10, 14 to the corresponding ends 16, 17 of the discharge passages 11, 12, the receiving element 18, 19 has a corresponding end ( 16, 17). Preferably the receiving elements 18, 19 are conical such that the ends 16, 17 are fixed in the receiving elements 18, 19 with the application of a small contact pressure, in this way keeping the outlet opening closed.

When this connection is manually released, the closure cap 13 is separated from the discharge openings 10, 14 and moved to the position shown in FIG. 7. The connection element may include a restriction 46 to allow the closure cap to bend more easily. For example, this restraint is an indentation or channel, which is an area of the connecting element 32 with a smaller wall thickness than the area immediately adjacent to the closure cap 13 or the cartridge 1.

Preferably, the outer diameter of the edge portion 35 is larger than the outer diameter of the neck portion 2. In this way, it is ensured that the outermost disposed discharge opening can be kept sealed in the receiving element 19 disposed in the vicinity of the edge by a sealed closure cap.

The edge 35 is formed as a protrusion 39 extending over at least a portion of the periphery of the closure cap 13. The protrusion 39 surrounds at least part of the neck 2.

A fastening element 40 is disposed at the edge 35 and can receive the flaps 45 of the closure cap 13 to keep the closure cap 13 closed.

8 shows a side view of the neck portion of the cartridge of FIG. 4. In particular, FIG. 8 and FIG. 9 show that the jacket 23 of the shock absorbing element 20 is disposed at the periphery of the neck 2. Also shown in this figure is an opening 26 of the jacket 23.

9 shows a view of the cartridge in which the mixer is arranged, and FIG. 10 shows a cross-sectional view of the cartridge 1 in which the mixer is arranged. The mixer 31 is disposed in the mixer housing 42 and integrally formed with the housing 34. The mixer 31 is made especially as a static mixer. In each case, the mixer housing 42 may include a corresponding sealing element capable of sealing the corresponding discharge opening of the discharge end 28 of the cartridge.

The mixer housing 42 may comprise a coupling element 43 which is adapted to engage the neck 2. The engagement element 43 can be received in the engagement element 44 formed around the neck 2. The engagement element 44 is formed as part of the neck 2. The coupling element 43 is displaced relative to the engagement element 44 such that the mixer housing can be in either the closed position or the open position. For example, the mixer housing 42 may be in an open position during filling to allow air contained in the first partial chamber 6 or the second partial chamber 7 to exit through the discharge opening through the discharge end 28. Becomes In particular, the mixer housing 42 may remain in the open position for a long time until filling is made, thereby preventing the formation of pressure in the first partial chamber 6 or the second partial chamber 7 which makes continuous filling more difficult. . When filling is complete, the mixer housing 42 is moved to the closed position where the outlet openings of the outlet passages 11 and 12 remain closed.

The first piston 3 and the second piston 4 can be actuated by a plunger 5 for dispensing two components 8, 9 simultaneously. In particular, the plunger is configured to be located on the first piston 3 and the second piston 4. In this embodiment, the plunger 27 is integrally connected to the two pistons 3, 4. At the beginning of dispensing, the mixer housing 42 changes from the closed position to the open position. In the open position, the outlet opening is connected to a mixer that extends inside the mixer housing. The first component, the second component and any air can be carried into the mixer. Air first escapes through the outlet opening of the mixer housing. Then, mixing of the first component 8 and the second component 9 takes place by a mixer. Venting bores or venting grooves (not shown in FIG. 5) are formed in the corresponding piston or the air enclosed between the first piston 3 or the second piston 4 and the filling material. It can be formed in the inner wall of the corresponding partial chamber containing it.

According to any of the above embodiments, at least one of the storage chambers 5, 6, 7 is at least partially transparent, so that the filling level of the filling material 8, 9, 15 in the corresponding storage chambers 5, 6, 7 is equal. Can be monitored.

Implementing the cartridge 1 includes filling the cartridge 1 with the filler material 8, 9, 15 and dispensing the filler material.

When the cartridge 1 according to any of the above embodiments is filled, the filling process is filled by connecting the storage chambers 5, 6, 7 to a transfer element disposed at the transfer end 29 of the cartridge 1. Docking cartridge 1 in a reservoir for storage of material, opening venting opening 33 to allow air to escape from storage chambers 5, 6, 7, and storage chamber 5 The filling material (8, 9, 15) is introduced into the filling chamber (6, 7) to seal the vent hole (33) when the filling material (8, 9, 15) is filled in the storage chamber (5, 6, 7), The storage chambers 5, 6, 7 filled by the closing cap 13 are sealed and the storage chambers 5, 6, 7 filled by the discharge elements 3, 4, 30 at the transfer end 29. Sealing).

The discharge opening for discharging the filling material at the discharge end 28 of the cartridge may in particular be a vent hole 33. In particular, the user can at any time determine the degree of filling since the housing is transparent, i.e. made of a transparent material or comprising at least an opening comprising a transparent material, so that whenever the filling process is visually confirmed, It is possible to reliably prevent the filling material from leaving the discharge end 28 at an early stage. Alternatively or in addition, the closure cap 13 may comprise vent holes, or may be combined with the neck 2 to form vent holes. The size of the vent hole 33 can be adjusted, for example, in that the closure cap 13 and the neck 2 are combined to have one or more conical surfaces. The gap between the closure cap 13 and the neck portion 2 in the region of the conical surface seals the opening in a fluid tight manner with the conical surface closed, permits the discharge of a small amount of air in the partially open state, and completely It may be configured to allow the discharge of a large amount of air in the open state or to enable the discharge of the filling material.

Alternatively or in addition, vent holes 33 may be formed in the pistons 3, 4. In this case, the vent hole may comprise a membrane which opens an opening for the release of air under pressure, or may comprise a vent valve which opens under pressure or in contact with the plunger. Alternatively, an opening or groove may be formed in the inner wall of the housing or in the jacket area of the piston to prevent the escape of air between the jacket area of the piston and the inner wall of the housing.

The dispensing process of the filling material 8, 9, 15 opens the sealing cap 13 of the filled storage chambers 5, 6, 7 and the discharge element so that the filling volume of the storage chambers 5, 6, 7 is reduced. Displacing (3, 4, 30) to dispense the filled material (8, 9, 15) under pressure in the storage chamber (5, 6, 7).

At least at the beginning of dispensing of the filling material, the air still contained between the filling material and the piston can be discharged through the vent hole in the open state.

During the filling process, the first flowable component 8 and the second flowable component 9 can be introduced into the first partial chamber 6 and the second partial chamber 7, and during the dispensing process, the first flowable component ( 8) and the second flowable component 9 can be discharged from the first partial chamber 6 and the second partial chamber 7, wherein the first piston 3 and the second piston 4 are respectively movable plungers. Displaced by (27), compressive force is applied in the corresponding first partial chamber 6 or second partial chamber 7 such that the filling volume of each of the first partial chamber 6 or the second partial chamber 7 is reduced. Add.

Claims (14)

Storage chambers 5, 6, 7 for accommodating filler material 8, 9, 15 and discharge passages 11, 12 for discharging filler material 8, 9, 15. A cartridge (1), including a neck (2) comprising a), capable of dispensing the fill material (8, 9, 15) from the storage chamber through the discharge passages (11, 12) ),
The neck portion 2 includes end portions 16 and 17 of the discharge passages 11 and 12, and discharge openings 10 and 14 are disposed at the end portions of the discharge passages 11 and 12. The discharge openings 10, 14 can be sealed by the closure cap 13,
The sealing cap 13 is integrally connected to the cartridge 1,
The closure cap 13 is engaged with the ends of the discharge passages 11 and 12 so that the discharge openings 10 and 14 are sealed several times, whereby the closure cap 13 causes the discharge openings 10 and 14 to be closed. ), The filling material is retained in the discharge passages (11, 12),
When the discharge openings 10, 14 are opened, the closure cap remains connected to the cartridge 1 by a connecting element 32,
The neck portion is surrounded by a shock absorbing element 20, the shock absorbing element 20 having a first end 21, a second end 22 connected to the neck portion 2, and A jacket (23) extending between the first end (21) and the second end (22),
The jacket 23 and the second end 22 are arranged at a predetermined interval from the neck portion 2, the intermediate space 24 is formed,
cartridge. The method of claim 1,
Cartridge, characterized in that the connecting element (32) is a hinge element. The method according to claim 1 or 2,
Cartridge, characterized in that the connecting element (32) is elastic. 4. The method according to any one of claims 1 to 3,
The connecting element (32) is attached to the neck (2). The method according to any one of claims 1 to 4,
The margin (35) of the closure cap (13) is located on the neck (2) when the closure cap (13) is closed. The method of claim 5,
Cartridge, characterized in that the outer diameter of the edge portion (35) is larger than the outer diameter of the neck portion (2). The method according to claim 5 or 6,
The edge portion (35) is formed as a protrusion (39) extending over at least a portion of the periphery of the closure cap (13). The method of claim 7, wherein
The protrusion (39) surrounds at least part of the neck (2). The method according to any one of claims 5 to 8,
At the edge 35, a fastening element 40 is arranged, which can receive a flap 45 of the closure cap 13 to keep the closure cap 13 closed. cartridge. The method according to any one of claims 1 to 9,
The connecting element (32) is held in the open position under no load. The method according to any one of claims 1 to 10,
The connecting element (32) comprises a restriction (46). The method according to any one of claims 1 to 11,
The shock absorbing element (20) protrudes above the closure cap (13) in the closed state. The method according to any one of claims 1 to 12,
The closure cap (13) is connected to the shock absorbing element (20) by the connecting element (32). The method according to any one of claims 1 to 13,
The closure cap 13 has a reception element 18, 19 which engages the end 16, 17 of the discharge passage 11, 12 when the discharge opening 10, 14 is sealed. Cartridge).

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