EP1491460B1 - Closure for a two-component cartridge. - Google Patents
Closure for a two-component cartridge. Download PDFInfo
- Publication number
- EP1491460B1 EP1491460B1 EP20030024323 EP03024323A EP1491460B1 EP 1491460 B1 EP1491460 B1 EP 1491460B1 EP 20030024323 EP20030024323 EP 20030024323 EP 03024323 A EP03024323 A EP 03024323A EP 1491460 B1 EP1491460 B1 EP 1491460B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cartridge
- tear
- component
- neck
- accordance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005192 partition Methods 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 4
- 210000003739 neck Anatomy 0.000 description 54
- 230000007704 transition Effects 0.000 description 7
- 230000003068 static effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010944 pre-mature reactiony Methods 0.000 description 2
- 206010053648 Vascular occlusion Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/023—Neck construction
- B65D1/0238—Integral frangible closures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
- B65D81/325—Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00503—Details of the outlet element
- B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/0052—Accessories therefor
Definitions
- the invention relates to a two- or multi-component cartridge, according to the preamble of claim 1.
- Two-component cartridges which are used in particular for ready-to-use preparation of two-component adhesives, must be provided both in coaxial design, as well as in the version with adjacent cartridges with a closure that closes both components each by itself tight and so leakage or reacting the two components prevented during storage or during transport.
- the closure To squeeze out the components, the closure must be removed and a static mixer placed in order to make the material react during squeezing.
- a cartridge is known in which a closure is molded integrally on the cartridge body.
- the cartridge opening can be opened by breaking the closure of the cartridge body and can then be closed again.
- additional aids such as B. a screwdriver required.
- the cartridge according to the invention therefore has at least one cartridge neck with an outlet opening, which is closed by a closure, which is integrally connected to the cartridge neck.
- the closure comprises at least one lid integrally connected to the cartridge neck and at least one tear-off element integrally connected to the lid.
- the outlet opening of the cartridge can be manually opened by exerting a tensile force on the tear-off in a simple manner without additional aids.
- the tear-off is a tear-off or a tear-off, which is attached via a flexible connection to the lid.
- the lid is formed and arranged so that it does not protrude significantly beyond the upper end of the cartridge neck.
- the flexible formation of the connection between the tear-off and the lid also contributes to the fact that there is no accidental opening of the cartridge, for example by tearing off the closure during transport or when filling the cartridge.
- the closure including the tear-off is molded in the production of the cartridge directly to the cartridge body, in particular the cartridge neck.
- the cartridge neck may in this case have a smaller diameter than the rest of the cartridge body, but it may also be formed in the same size and shape as the rest of the cartridge body.
- the cartridge is a two-component cartridge with at least two outlet openings.
- the closure is in this case designed so that both outlet openings of the cartridge are sealed by a single lid.
- two covers ie a cover for each outlet opening, may be provided.
- the tear-off element is a tear-off ring, which preferably does not protrude substantially beyond the end of the cartridge, including the lid, in the longitudinal direction of the cartridge, in order to prevent accidental tearing off of the closure from the cartridge body.
- the opening of the cartridge can be done by simply pulling the tear-off by hand, without the need for additional tools would be required.
- the connection between the cover and the neck of the cartridge breaks off along at least one predetermined breaking point and releases the outlet openings.
- the closure is advantageously designed in the embodiment of a two-component cartridge that both cartridge openings can be opened simultaneously with a single tear-off.
- the tear-off ring When the tear-off ring is arranged around the outlet openings at the neck of the cartridge, it can be conveniently connected at a second location to the lid closing the outlet openings, so that a stable attachment to the cartridge is ensured and the tear-off ring can not accidentally get caught somewhere.
- a further predetermined breaking point for cutting with a cutting tool in addition to the break-off point which can be torn off by means of the tear-off element.
- the tearable breaking point is intended to be opened when filled with low-viscosity components and releases outlet openings with a smaller cross-section, while the cut-off predetermined breaking point allows the release of outlet openings with a larger cross-section, as required for highly viscous components.
- inventive concept is equally applicable to cartridges with a single chamber as well as two- or multi-component cartridges with two or more chambers, wherein in two- or multi-component cartridges, the outlet openings of the individual chambers can be arranged coaxially or side by side.
- FIGS. 1 to 3 A first embodiment of the invention is in the FIGS. 1 to 3 shown.
- Fig. 1 shows a coaxial cartridge 1, in which two cartridge cases 2 and 3 of different diameters are arranged coaxially with each other, wherein the housing with the smaller diameter 3 is located within the housing with the larger diameter 2.
- the outer neck 4 There are several along the circumference of the outer neck 4 distributed projections 8 on which a shoulder 9 of the inner neck 5 is supported, whereby the position of the two housings 2 and 3 is fixed in the axial direction.
- the outer neck 4 has a thread 10 for screwing on a static mixer, not shown. This construction of a coaxial cartridge 1 as such is prior art.
- the outlet channels 6 and 7 are at their ends, that is completed in the region of their respective outlet openings 11 and 12 by a closure 13 according to the invention, hereinafter referred to in the FIGS. 2a and 2b in the cross section and in the plan view shown detail view is explained.
- the closure 13 comprises as main parts a lid 14 and a tear-off ring 15 which is connected to the lid 14 via a web 16.
- the lid 14 is integrally connected to the outer neck 4 at the inner edge of the outer outlet opening 11 via an annular, with respect to the function of the closure 13 acting as a predetermined breaking point 17 area, ie it is together with the outer housing 2 in turn integrally in this neck 4 produced by injection molding.
- a hermetic seal between the two outlet channels 6 and 7 is initially ensured relative to the environment.
- the underside of the lid 14 is formed so that it forms an annular recess 18 which is in the initial state with the upper edge of the inner neck 5 in frictional engagement and thereby the outer outlet opening 11 and the inner outlet opening 12 close tightly from each other, so as to prevent contact of the existing in the two exit channels 6 and 7 substances.
- the tear-off 15 surrounds the outer neck 4 of the cartridge 1 approximately at the height of the outlet openings 11 and 12.
- the central axis of the cartridge 1 also corresponds to the central axis of the ring 15.
- the connecting web 16 in the Abr constitutionring 15 passes, this is slightly increased compared to its remaining peripheral region, but does not extend beyond the top of the lid 14 in the longitudinal direction of the cartridge 1.
- the rest of the peripheral region of the Abr concernedringes 15 lies with its upper edge at the height of the upper edge of the outer neck 4. It is clear that by this shape and arrangement of the Abr constituringes 15 an extension of the Total length of the cartridge 1 avoided and the risk of accidental sticking of the tear-off 15 on any objects in the handling of the cartridge 1 is effectively reduced.
- the web 16 opposite side of the tear-off 15 is connected by a further web 20 with the outer neck 4 of the cartridge 1.
- the web 20 tapers toward the neck 4, so that its transition to the neck 4 results in a predetermined breaking point 21.
- the web 20 serves to stabilize the tear-off 15 in a direction perpendicular to the central axis of the cartridge 1 level.
- the tear-off ring 15 can thus not inadvertently bend and, in the bent state, protrude beyond the cover 14 upwards.
- FIGS. 3a to 3c is the upper portion of the cartridge 1 in two mutually rotated by 90 ° side views and shown in a plan view. Recognizable details are given the same reference numerals as in FIGS FIGS. 1 . 2a and 2b characterized. Very well visible is from the FIGS. 3a and 3b the space-saving size of the closure 13 in relation to the dimensions of the outer neck 4 of the cartridge. 1
- the function of the tear-off 15 is that the thin predetermined breaking point 21 between the tear-off and the outer neck 4 is first torn off by hand to open the lid 14. This is possible with little effort. Subsequently, the tear-off ring 15 can be bent upwards around a pivot axis extending approximately tangentially to the tear-off ring 15 in the region of the wider web 16, thereby firmly grasped with one or more fingers of one hand, in order then to exert a greater, upward pulling force on it.
- the diameter of the Abr einringes 15 may be selected so that a fingering is possible with a finger, so that the exercise of the force designed particularly simple and no slipping is possible.
- the pulling force acting on the tear-off is transmitted via the web 16 on the lid 14 and leads to a tearing thereof from the outer neck 4 of the cartridge 1 along the predetermined breaking point 17.
- This tearing begins adjacent to the transition of the web 16 in the lid 14 and continues along two semicircles to the opposite, originally the web 20 adjacent region of the predetermined breaking point 17, where it ends with the complete separation of the lid 14 from the neck 4.
- a static mixer can be screwed by means of the thread 10 on the neck 4.
- FIGS. 4 and 5 explains Fig. 4a a cross-sectional view of the upper portion of such a cartridge 101, Fig. 4b a plan view of the same and Fig. 5 shows a detail view of the neck 104 of the cartridge 101 in cross section.
- the cartridge 101 consists of two housings 102 and 103, which are arranged in this case parallel to each other ("side-by-side").
- the neck 104 accordingly includes two parallel adjacent outlet channels 106 and 107, between which a partition wall 105 is located. Also in this case, the neck 104 is provided with a thread 110 for screwing on a static mixer. From the upper end of the partition 105 from an extension 105 a still extends. As such, this construction of a so-called side-by-side cartridge 101 is prior art.
- the outlet channels 106 and 107 are closed at their ends, ie in the region of their respective outlet openings 111 and 112, by a closure 113, which is described below with reference to FIG Fig. 5 explained in detail cross section is explained.
- the closure 113 comprises as main parts two covers 114a and 114b and a tear-off ring 115, which is connected to the covers 114a and 114b respectively via a web 116a and 116b (see FIG. Fig. 4b ) connected is.
- the lids 114a and 114b are integrally connected to the neck 104 and the partition wall 105 at the inner edges of the outlet openings 111 and 112, respectively, via portions acting as predetermined breaking points 117a and 117b with respect to the function of the shutter 113.
- the shape of the predetermined breaking points 117a and 117b, as Fig. 4b can be seen, given in plan view by the lines of intersection of the inner cross sections of the housing 102 and 103 with the inner cross section of the neck 104, ie, it is composed of two circumferential sections of circles of different diameters.
- the lids 114a and 114b are injection molded together with the housings 102 and 103, which are in turn integrally formed in the neck 104 and the partition wall 105. This is already a hermetic seal between the two outlet channels 106 and 107 ensures both against the environment, as well as against each other, so that a premature reaction of the two components in the cartridge 101 is excluded.
- the tear-off ring 115 has an inner diameter which corresponds approximately to the outer diameter of the neck 104, and is arranged coaxially with the neck 104 slightly above the outlet openings 111 and 112.
- the webs 116a and 116b and the tear-off ring 115 could also be shaped such that the tear-off ring 115 would surround the neck 104 as the tear-off ring 15 surrounds the outer neck 4 in the first exemplary embodiment FIGS. 1 to 3 , This would mean a more complex shape, but would bring no advantage in the cartridge 101, since in her the maximum length is predetermined by the extension 105 a of the partition 105.
- the webs 116a and 116b initially extend upwards from the covers 114a or 114b and then in an arc to the side in the plane of the tear-off ring 115.
- the tear-off ring is slightly above the lids 114a and 114b, this is not important as it does not increase the overall length of the cartridge 101.
- the tear-off ring 115 already experiences a better stabilization than the tear-off ring 15 of the first embodiment by the web 16 alone. Therefore, in the second embodiment, an additional opposing ridge for connection to the neck 104 is less useful than the first one. Such an additional bridge is therefore in the FIGS. 4 and 5 not shown, but can still be provided for safety.
- the function of the tear-off ring 115 essentially corresponds to the function of the tear-off ring 15 described above with reference to the first embodiment FIGS. 4 and 5 no additional web is provided to the neck 104, so the opening of the closure 113 begins with the bending of the tear-off ring 115 upwards about an approximately through the transitions from the webs 116a and 116b to the tear-off ring 115 extending pivot axis. Thereafter, the tear-off ring 115 can be firmly gripped with one or more fingers of one hand to provide an upward pulling force on it exercise. In this case, the diameter of the tear-off ring 115 may be selected so that a finger-grasping is possible, so that the exercise of the force is particularly simple and no slipping is possible.
- the pulling force acting on the tear-off ring is transferred via the webs 116a and 116b to the covers 114a and 114b and results in their tearing off the neck 104 and the partition wall 105 of the cartridge 101 along the predetermined breaking points 117a and 117b, respectively.
- this tearing begins adjacent to the respective transitions of the webs 116a and 116b in the lid 114a and 114b respectively and continues to the opposite end of the predetermined breaking points 117a and 117b, where it is with the complete separation of the lid 114a and 114b from the neck 104th and the partition wall 105 ends, thus exposing both outlet openings 111 and 112.
- a static mixer can be screwed onto the neck 104 by means of the thread 110.
- the two covers 114a and 114b are held together after their separation from the cartridge 101 of even the tear-off ring 115, so that the number of small parts resulting from the use of the cartridge 101 remains small.
- FIGS. 6 and 7 explains Fig. 6a a cross-sectional view of the upper portion of a side-by-side cartridge 201, Fig. 6b a plan view of the same and Fig. 7 shows a detail view of the neck 204 of the cartridge 201 in cross section.
- the third embodiment differs from the second only in that the transitions from the covers 214a and 214b to the neck 204 and the partition 205 of the cartridge 201 respectively in addition to a first predetermined breaking point 217a and 217b, which functionally the predetermined breaking point 117a or 117b corresponds to the second embodiment, each still have a second predetermined breaking point 222a and 222b.
- the cartridge neck 204, the partition 205 and the two covers 214a and 214b and a tear-off 215 and two connecting webs 216a and 216b comprehensive closure 213 is in accordance with the second embodiment.
- the second predetermined breaking point 222a and 222b respectively between the first predetermined breaking point 217a and 217b and the neck 204.
- the resulting in tearing off the second predetermined breaking points 217a and 217b cross section of the outlet openings 211 and 212 is greater than that which when tearing the first predetermined breaking points 217a and 217b results.
- the material thickness in the region of the second predetermined breaking points 222a and 222b is greater than that in the region of the first predetermined breaking points 217a and 217b.
- the tear-off ring 215 is connected to the covers 214a and 214b respectively at locations completely enclosed by the first predetermined breaking points 217a and 217b, respectively. In this way it is achieved that a pulling force exerted on the tear-off ring 215 is introduced both into the first predetermined breaking points 217a and 217b and into the second predetermined breaking points 222a and 222b. This has the consequence that the first predetermined breaking points 217a and 217b demolish as the first due to the comparatively lower material thickness in this area. In this way, with the aid of the tear-off ring 215, the outlet openings 211 and 212 can be opened with a first predetermined cross-section. This first cross-section is provided for the case that the cartridge 201 is filled with relatively low-viscosity components, in which the cross-section of the outlet openings 211 and 212 must be correspondingly low in order to avoid uncontrolled leakage of the components.
- the additional predetermined breaking points 222a and 222b are intended to provide the cartridge 201 with the ability to be filled with highly viscous components, which require a correspondingly large cross section of the outlet openings 211 and 212 to be squeezed out of the cartridge 210 at a pressure of conventional size , Since the predetermined breaking points 222a and 222b, as described above, can not be torn off by means of the tear-off ring 215, they must be cut off with a cutting tool.
- the shape of the second predetermined breaking points 222a and 222b corresponds to that of the single predetermined breaking points 117a and 117b in the second embodiment, while the first predetermined breaking points 217a and 217b of the third embodiment correspond functionally to the single predetermined breaking points 117a and 117b of the second embodiment , with respect to the latter have significantly smaller lateral dimensions in order to create just outlet openings 211 and 212 with much less, in the example shown circular cross-section. Further explanations of the third embodiment are unnecessary due to the substantial structural agreement with the second embodiment.
- a fourth embodiment of the invention is in the FIGS. 8 and 9 played. It corresponds structurally and functionally as far as possible in the FIGS. 1 to 3 shown first embodiment. The difference to this consists only in that the top of the lid 314 is not substantially planar, but is structured so that the lid 314 is suitable after a rotation of 180 ° to Wiederverlei touch the cartridge 301 with incomplete consumption of its contents.
- the central region of the cover 314 in the radial direction which causes the mutual sealing of the outlet channels 306 and 307 in the closed initial state of the cartridge 301, is mirror-inverted to the underside on its upper side remote from the initial state of the cartridge 301.
- radial portion 323 of the lid 314 which adjoins the transition to the outer neck 304 in the form of the predetermined breaking point 317, since instead of the one-piece connection when placing the inverted lid 314 another type of sealing must be made to the outside ,
- This seal to the outside is achieved by a radially outer edge portion 324 of the top of the lid 314, which extends cupped upwards, with its vertical, substantially cylindrical outer side has a radial shoulder 325 at which its outer diameter abruptly decreases slightly.
- the reduced outer diameter of the free end portion 326 of the skirt portion 324 is minimally greater than the inner diameter of the outer neck 304 of the cartridge 301.
- the vertical position of the heel 325 is approximately equal to the height in the radial center portion of the top of the cartridge Cover 314 provided sealing elements, which represent a mirror image of the measures provided for in the middle part of the underside of the lid sealing elements.
- FIGS. 8a and 8b is a two-component cartridge in coaxial with a closure according to the fourth embodiment of the invention in the locked initial state in a partial cross-section and in a partial plan view shown.
- Ingredients that fully correspond to the previously explained first embodiment are not specifically identified therein.
- Fig. 8c shows the process of opening the shutter 313.
- the tear-off ring 315 By exerting an upward pulling force on the tear-off ring 315, in Fig. 8c indicated by the arrow marked F, the tear-off is bent upwards and the lid 314 from the side on which it is connected to the tear-off 315, lifted off under tearing of the predetermined breaking point 317.
- Fig. 8c left side this demolition has already happened.
- the representation of the tear-off process in Fig. 8c Applies in full to the first embodiment of the invention according to the FIGS. 1 to 3 to.
- FIGS. 9a and 9b show a partial cross-section and a top view of a cartridge 301 according to the fourth embodiment of the closure according to the invention with after incomplete consumption of the cartridge contents for re-closing the cartridge 301 again attached lid 314, wherein the lid in the FIGS. 9a and 9b opposite the representation of the FIGS. 8a and 8b rotated by 180 °.
- Fig. 9a first corresponds to the sealing of the inner outlet channel 307 relative to the outer outlet channel 306 due to the mirror image of the two sides of the lid 314 in its central region in full to the conditions in the closed initial state according to Fig. 8a .
- the sealing of the outer outlet channel 306 relative to the environment takes place in place of the separated predetermined breaking point 317 by the frictional engagement of the substantially cylindrical outer surface of the outer edge portion 324 of the lid 314 with the also substantially cylindrical inner surface of the outer neck 304 of the cartridge 301.
- this case forms said surface pair a press fit and at least one of them, preferably the outer surface of the outer edge portion 324 of the lid 314 is tapered.
- the paragraph 325 forms a vertical stop for the Einpreßtiefe said edge portion 324 and thus at the same time the entire lid 314 when reclosing the cartridge 301.
- the depth of the structuring of the lid 314 in its radially inner region must be sufficiently large to avoid a vertical stop between the upper end of the inner neck 305 and the lid 314. Only then does the paragraph 325 act as a vertical stop.
- the tear-off 315 runs, like the FIGS. 8 and 9 expediently approximately at the height of the lid 314 around it, so that it neither in the initial state after Fig. 8a , still in the reclosed state of the cartridge 301 after Fig. 9a protrudes vertically beyond the lid 314 and thus in no case contributes to an increase in the total length of the cartridge 301.
- a flip-re-closable lid 314 according to the fourth embodiment of the invention necessarily has a greater overall height than the non-reclosable lid 14 of the first embodiment.
- a fifth and final embodiment of the invention is in the Figures 10a and 10b shown. These show a resealable closure 413 for a side-by-side cartridge 401 having two separate reclosable covers 414a and 414b FIGS. 4 and 5
- the fifth differs in the formation of the tops of the covers 414a and 414b. These are shaped so that they are suitable for reclosing the cartridge 401 after incomplete consumption of its contents, the entire closure 413 for reclosing the cartridge 401 relative to its in Fig. 10a shown initial state must be rotated by 180 °.
- the edges of the covers 414a and 414b which in each case extend integrally into the neck 404 and the partition wall 405 in the initial state via the predetermined breaking points 417a and 417b, extend upward from respective substantially cylindrical edge sections 424a and 424b, respectively the lids 414a and 414b each receive a cup-shaped overall shape.
- the tear-off ring 415 surrounds in this case the closure 413 approximately at the height of the lid 414a and 414b.
- connection of the tear-off 415 sets with the covers 414a and 414b on the arcuate webs 416a and 416b in contrast to the second and third embodiment according to the FIGS. 4 to 7 not on the top of the lid 414a and 414b. Rather, the transitions from the lands 416a and 416b to the covers 414a and 414b, respectively, are on the outside of the edge portions 424a and 424b, respectively, near the respective predetermined breaking point 417a and 417b, respectively.
- the tear-off ring 415 expediently surrounds the covers 414a and 414b at approximately their height so that they do not retract either in the initial state Fig. 10a , still in the reclosed state of the cartridge 401 after Fig. 10b protrudes vertically beyond the cover 414a and 414b and thus contributes in no case to an increase in the total length of the cartridge 401.
- reclosable lids 414a and 414b according to the fifth embodiment of the invention necessarily have a greater height than the non-reclosable lids 214a and 214b of the second embodiment, but this does not matter because of the extension 405a of the partition 405, ie not an increase in the total length of the cartridge 401 leads.
- the tear-off element can also be a tear-off tab.
- a tear-off tab Such embodiments of a cartridge according to the invention are in the FIGS. 11a-11d shown.
- the tear-off tab 515 is integrally connected to the lid 14 via a flexible connecting element 516.
- the tear tab 515 may be either as shown in FIGS Figures 11a and 11b shown arranged and formed so that it protrudes beyond the upper edge of the lid 14.
- the tear tab 515 also - as in the Figures 11c and 11d shown - bent down so that the tear tab 515 does not protrude beyond the upper end of the cartridge neck including the lid 14.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Package Specialized In Special Use (AREA)
Description
Die Erfindung betrifft eine Zwei- oder Mehrkomponentenkartusche, nach dem Oberbegriff des Anspruchs 1.The invention relates to a two- or multi-component cartridge, according to the preamble of
Zweikomponentenkartuschen, die insbesondere zur gebrauchsfertigen Bereitstellung von Zweikomponentenklebstoffen Verwendung finden, müssen sowohl in koaxialer Ausführung, als auch in der Ausführung mit nebeneinanderliegenden Kartuschen mit einem Verschluß versehen werden, der beide Komponenten jeweils für sich allein dicht abschließt und so ein Auslaufen oder Ausreagieren der beiden Komponenten bei der Lagerung oder beim Transport verhindert. Zum Auspressen der Komponenten muß der Verschluß entfernt werden und ein statischer Mischer aufgesetzt werden, um das Material beim Auspressen zum Reagieren zu bringen.Two-component cartridges, which are used in particular for ready-to-use preparation of two-component adhesives, must be provided both in coaxial design, as well as in the version with adjacent cartridges with a closure that closes both components each by itself tight and so leakage or reacting the two components prevented during storage or during transport. To squeeze out the components, the closure must be removed and a static mixer placed in order to make the material react during squeezing.
Es sind Verschlüsse mit einer Schraubkappe oder mit einer Schraubkappe und zusätzlichem Stopfen bekannt. Kartuschen mit solchen Verschlüssen sind auch nach Gebrauch wieder gut und dicht verschließbar, sind aber in der Herstellung relativ teuer, da ein bis zwei zusätzliche Spritzgußsteile benötigt werden und eine zusätzliche Vormontage erforderlich ist.There are closures with a screw cap or with a screw cap and additional plug known. Cartridges with such closures are again good and tightly closed after use, but are relatively expensive to manufacture, since one to two additional injection molded parts are required and an additional pre-assembly is required.
Es sind auch Verschlüsse bekannt, und zwar speziell bei Doppelspritzen, die in einem Stück an die Kartusche gespritzt werden, und durch Abbrechen geöffnet werden. Diese Verschlüsse haben den Nachteil, daß der abzubrechende Teil vorsteht und so auch beim Transport oder beim Abfüllen der Kartusche abbrechen kann. Die Kartusche muß zudem bei nicht vollständiger Entleerung nach Gebrauch mit einem zusätzlichen anderen Verschluß wieder geschlossen werden.There are also closures known, especially in double syringes, which are injected in one piece to the cartridge, and are opened by canceling. These closures have the disadvantage that the abzubrechende part protrudes and so can break off during transport or filling of the cartridge. The cartridge must also be closed in case of incomplete emptying after use with an additional other closure.
Aus der
In Anbetracht dieses Standes der Technik ist es die Aufgabe der Erfindung, einen Verschluß für Zweikomponentenkartuschen zu schaffen, der im Spritzgußverfahren ohne zusätzliches Spritzgußteil und Montageaufwand direkt zusammen mit der Kartusche hergestellt werden kann und dabei sowohl eine einfache Handhabung beim Öffnen erlaubt, als auch eine hohe Sicherheit gegen ungewolltes Öffnen bietet.In view of this prior art, it is the object of the invention to provide a closure for two-component cartridges, which can be produced by injection molding without additional injection molding and assembly costs directly together with the cartridge, thereby allowing both easy handling when opening, as well as a high Security against unintentional opening offers.
Diese Aufgabe wird erfindungsgemäß durch eine Kartusche mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben.This object is achieved by a cartridge with the features of
Die erfindungsgemäße Kartusche weist demnach mindestens einen Kartuschenhals mit einer Austrittsöffnung auf, welche durch einen Verschluss verschlossen ist, der einstückig mit dem Kartuschenhals verbunden ist. Der Verschluss umfasst mindestens einen einstückig mit dem Kartuschenhals verbundenen Deckel und mindestens ein einstückig mit dem Deckel verbundenes Abreißelement. Die Austrittsöffnung der Kartusche kann durch Ausübung einer Zugkraft auf das Abreißelement auf einfache Weise ohne zusätzliche Hilfsmittel manuell geöffnet werden. Bei dem Abreißelement handelt es sich um einen Abreißring oder um eine Abreißlasche, die über eine flexible Verbindung an dem Deckel befestigt ist. Um ein unbeabsichtigtes Abreißen des Verschlusses vom Kartuschenhals zu verhindern, ist der Deckel so ausgebildet und angeordnet, dass er nicht wesentlich über das obere Ende des Kartuschenhals hinausragt. Die flexible Ausbildung der Verbindung zwischen dem Abreißelement und dem Deckel trägt ebenfalls dazu bei, dass es nicht zu einem unbeabsichtigten Öffnen der Kartusche kommt, beispielsweise durch Abreißen des Verschlusses beim Transport oder beim Abfüllen der Kartusche.The cartridge according to the invention therefore has at least one cartridge neck with an outlet opening, which is closed by a closure, which is integrally connected to the cartridge neck. The closure comprises at least one lid integrally connected to the cartridge neck and at least one tear-off element integrally connected to the lid. The outlet opening of the cartridge can be manually opened by exerting a tensile force on the tear-off in a simple manner without additional aids. The tear-off is a tear-off or a tear-off, which is attached via a flexible connection to the lid. To prevent accidental tearing of the closure from the cartridge neck, the lid is formed and arranged so that it does not protrude significantly beyond the upper end of the cartridge neck. The flexible formation of the connection between the tear-off and the lid also contributes to the fact that there is no accidental opening of the cartridge, for example by tearing off the closure during transport or when filling the cartridge.
Der Verschluss einschl. des Abreißelements wird bei der Herstellung der Kartusche direkt an den Kartuschenkörper, insbesondere am Kartuschenhals angespritzt. Der Kartuschenhals kann hierbei einen kleineren Durchmesser als der übrige Kartuschenkörper aufweisen, er kann jedoch auch in derselben Größe und Form wie der übrige Kartuschenkörper ausgebildet sein.The closure including the tear-off is molded in the production of the cartridge directly to the cartridge body, in particular the cartridge neck. The cartridge neck may in this case have a smaller diameter than the rest of the cartridge body, but it may also be formed in the same size and shape as the rest of the cartridge body.
Bei der Kartusche handelt es sich um eine Zweikomponentenkartusche mit mindestens zwei Austrittsöffnungen. Der Verschluss ist hierbei so ausgebildet, dass beide Austrittsöffnungen der Kartusche durch einen einzigen Deckel dicht verschlossen sind. Alternativ können auch zwei Deckel, d. h. ein Deckel für jede Austrittsöffnung, vorgesehen sein.The cartridge is a two-component cartridge with at least two outlet openings. The closure is in this case designed so that both outlet openings of the cartridge are sealed by a single lid. Alternatively, two covers, ie a cover for each outlet opening, may be provided.
In einem Ausführungsbeispiel der Kartusche handelt es sich bei dem Abreißelement um einen Abreißring, der bevorzugt in Längsrichtung der Kartusche nicht wesentlich über das Kartuschenende einschl. des Deckels hinausragt, um ein versehentliches Abreißen des Verschlusses vom Kartuschenkörper zu verhindern.In one embodiment of the cartridge, the tear-off element is a tear-off ring, which preferably does not protrude substantially beyond the end of the cartridge, including the lid, in the longitudinal direction of the cartridge, in order to prevent accidental tearing off of the closure from the cartridge body.
Das Öffnen der Kartusche kann durch einfaches Ziehen an dem Abreißelement mit der Hand erfolgen, ohne daß hierzu zusätzliche Hilfsmittel benötigt würden. Bei Aufbringung einer bestimmten Kraft reißt die Verbindung zwischen dem Deckel und dem Hals der Kartusche entlang mindestens einer Sollbruchstelle ab und gibt die Austrittsöffnungen frei. Der Verschluß ist bei dem Ausführungsbeispiel einer Zweikomponentenkartusche vorteilhaft so konzipiert, daß beide Kartuschenöffnungen gleichzeitig mit einem einzigen Abreißring geöffnet werden können. Wenn der Abreißring um die Austrittsöffnungen am Hals der Kartusche herum angeordnet ist, kann er zweckmäßigerweise an einer zweiten Stelle an den die Austrittsöffnungen verschließenden Deckel angebunden werden, so daß eine stabile Befestigung an der Kartusche gewährleistet ist und der Abreißring nicht versehentlich irgendwo hängen bleiben kann.The opening of the cartridge can be done by simply pulling the tear-off by hand, without the need for additional tools would be required. Upon application of a certain force, the connection between the cover and the neck of the cartridge breaks off along at least one predetermined breaking point and releases the outlet openings. The closure is advantageously designed in the embodiment of a two-component cartridge that both cartridge openings can be opened simultaneously with a single tear-off. When the tear-off ring is arranged around the outlet openings at the neck of the cartridge, it can be conveniently connected at a second location to the lid closing the outlet openings, so that a stable attachment to the cartridge is ensured and the tear-off ring can not accidentally get caught somewhere.
Um die universelle Verwendbarkeit einer Kartusche sowohl für niederviskose, als auch für hochviskose Komponenten zu erreichen, ist es möglich, zusätzlich zu der mittels des Abreißelements abreißbaren Sollbruchstelle eine weitere Sollbruchstelle zum Abschneiden mit einem Schneidwerkzeug vorzusehen. Die abreißbare Sollbruchstelle ist zum Öffnen bei Füllung mit niederviskosen Komponenten bestimmt und gibt Austrittsöffungen mit kleinerem Querschnitt frei, während die abschneidbare Sollbruchstelle die Freigabe von Austrittsöffnungen mit größerem Querschnitt, wie sie für hochviskose Komponenten benötigt werden, erlaubt.In order to achieve the universal usability of a cartridge for both low-viscosity and high-viscosity components, it is possible to provide a further predetermined breaking point for cutting with a cutting tool in addition to the break-off point which can be torn off by means of the tear-off element. The tearable breaking point is intended to be opened when filled with low-viscosity components and releases outlet openings with a smaller cross-section, while the cut-off predetermined breaking point allows the release of outlet openings with a larger cross-section, as required for highly viscous components.
Das erfindungsgemäße Konzept ist gleichermaßen auf Kartuschen mit einer einzigen Kammer wie auch auf Zwei- oder Mehrkomponentenkartuschen mit zwei oder mehr Kammern anwendbar, wobei bei Zwei- oder Mehrkomponentenkartuschen die Austrittsöffnungen der einzelnen Kammern koaxial oder auch nebeneinander liegend angeordnet sein können.The inventive concept is equally applicable to cartridges with a single chamber as well as two- or multi-component cartridges with two or more chambers, wherein in two- or multi-component cartridges, the outlet openings of the individual chambers can be arranged coaxially or side by side.
Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnungen beschrieben. In diesen zeigt
- Fig. 1
- einen Schnitt durch eine Koaxialkartusche mit koaxialem Auslaß und erfindungsgemäßem Abreißringverschluß,
- Fig. 2a
- eine Detailansicht des Auslasses mit Abreißringverschluß der Kartusche von
Fig. 1 , - Fig. 2b
- die Draufsicht auf den Auslaß mit Abreißringverschluß von
Fig. 2A , - Fig. 3a
- eine Außenansicht des oberen Bereiches der Kartusche von
Fig. 1 , - Fig. 3b
- eine weitere, gegenüber
Fig. 3a um 90° gedrehte Außenansicht des oberen Bereiches der Kartusche vonFig. 1 , - Fig. 3c
- die Draufsicht auf den Kartuschenbereich von
Fig. 3b , - Fig. 4a
- einen Schnitt durch eine Side-by-side-Kartusche mit Side-by-side-Auslass und erfindungsgemäßem Abreißringverschluß
- Fig. 4b
- die Draufsicht auf die Kartusche von
Fig. 4a - Fig. 5
- eine Detailansicht des Auslasses mit Abreißringverschluß der Kartusche von
Fig. 4a , - Fig. 6a
- eine Variante der Kartusche von
Fig. 4 mit kleiner Austrittsöffnung für niederviskose Komponenten, mit der Möglichkeit zum zusätzlichen Abschneiden des Auslasses bei hochviskosen Komponenten, - Fig. 6b
- die Draufsicht auf die Kartusche von
Fig. 6a , - Fig. 7
- eine Detailansicht des Auslasses mit Abreißringverschluß der Kartusche von
Fig. 6a , - Fig. 8a
- einen Schnitt durch eine Koaxialkartusche mit koaxialem Auslaß und erfindungsgemäßem, wiederverschließbarem Abreißringverschluß im ungeöffneten Zustand,
- Fig. 8b
- die Draufsicht auf die Kartusche von
Fig. 8a , - Fig. 8c
- eine Teilansicht des Schnittes von
Fig. 8a während des Öffnens des Verschlusses, - Fig. 9a
- einen Schnitt durch die Kartusche von
Fig. 8a in wieder verschlossenem Zustand, - Fig. 9b
- die Draufsicht auf die Kartusche von
Fig. 9a , - Fig. 10a
- einen Schnitt durch eine Side-by-side-Kartusche mit Side-by-side-Auslaß und erfindungsgemäßem, wiederverschließbarem Abreißringverschluß im ungeöffneten Zustand,
- Fig. 10b
- die Kartusche von
Fig. 10a in wieder verschlossenem Zustand, - Fig. 11a
- eine Außenansicht des oberen Bereichs eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Kartusche,
- Fig. 11b
- eine weitere, gegenüber
Fig. 11a um 90° gedrehte Außenansicht des oberen Bereichs der erfindungsgemäßen Kartusche nachFig. 11a , - Fig. 11c
- eine Außenansicht des oberen Bereichs eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Kartusche,
- Fig. 11d
- eine weitere, gegenüber
Fig. 11c um 90° gedrehte Ansicht des oberen Bereichs der erfindungsgemäßen Kartusche nachFig. 11c .
- Fig. 1
- a section through a coaxial cartridge with coaxial outlet and inventive Abreißringverschluß,
- Fig. 2a
- a detailed view of the outlet with Abreißringverschluß the cartridge of
Fig. 1 . - Fig. 2b
- the top view of the outlet with Abreißringverschluß of
Fig. 2A . - Fig. 3a
- an external view of the upper portion of the cartridge of
Fig. 1 . - Fig. 3b
- another, opposite
Fig. 3a 90 ° rotated outside view of the top of the cartridge fromFig. 1 . - Fig. 3c
- the top view of the cartridge area of
Fig. 3b . - Fig. 4a
- a section through a side-by-side cartridge with side-by-side outlet and inventive Abreißringverschluß
- Fig. 4b
- the top view of the cartridge of
Fig. 4a - Fig. 5
- a detailed view of the outlet with Abreißringverschluß the cartridge of
Fig. 4a . - Fig. 6a
- a variant of the cartouche of
Fig. 4 with small outlet for low-viscosity components, with the possibility of additional cutting of the outlet for high-viscosity components, - Fig. 6b
- the top view of the cartridge of
Fig. 6a . - Fig. 7
- a detailed view of the outlet with Abreißringverschluß the cartridge of
Fig. 6a . - Fig. 8a
- a section through a coaxial cartridge with coaxial outlet and inventive, resealable Abreißringverschluß in the unopened state,
- Fig. 8b
- the top view of the cartridge of
Fig. 8a . - Fig. 8c
- a partial view of the section of
Fig. 8a during the opening of the closure, - Fig. 9a
- a section through the cartridge of
Fig. 8a in closed again, - Fig. 9b
- the top view of the cartridge of
Fig. 9a . - Fig. 10a
- a section through a side-by-side cartridge with side-by-side outlet and inventive, resealable Abreißringverschluß in the unopened state,
- Fig. 10b
- the cartouche of
Fig. 10a in closed again, - Fig. 11a
- an outer view of the upper portion of another embodiment of a cartridge according to the invention,
- Fig. 11b
- another, opposite
Fig. 11a rotated by 90 ° outside view of the upper portion of the cartridge according to the inventionFig. 11a . - Fig. 11c
- an outer view of the upper portion of another embodiment of a cartridge according to the invention,
- Fig. 11d
- another, opposite
Fig. 11c rotated by 90 ° view of the upper portion of the cartridge according to the inventionFig. 11c ,
Eine erste Ausführungsform der Erfindung ist in den
Die Austrittskanäle 6 und 7 werden an ihren Enden, d.h. im Bereich ihrer jeweiligen Austrittsöffnungen 11 und 12 durch einen erfindungsgemäßen Verschluß 13 abgeschlossen, der nachfolgend anhand einer in den
Um eine vorzeitige Reaktion der beiden Komponenten in der Kartusche 1 zu vermeiden, ist darüber hinaus auch eine gegenseitige Abdichtung der Austrittskanäle 6 und 7 notwendig. Zu diesem Zweck ist die Unterseite des Deckels 14 so geformt, daß sie eine kreisringförmige Vertiefung 18 ausbildet, welche im Ausgangszustand mit dem oberen Rand des inneren Halses 5 in kraftschlüssigem Eingriff steht und hierdurch die äußere Austrittsöffnung 11 und die innere Austrittsöffnung 12 dicht voneinander abschließt, um so einen Kontakt der in den beiden Austrittskanälen 6 und 7 vorhandenen Substanzen zu verhindern.In order to avoid a premature reaction of the two components in the
Wie in den
Auf der dem Steg 16 gegenüberliegenden Seite ist der Abreißring 15 durch einen weiteren Steg 20 mit dem äußeren Hals 4 der Kartusche 1 verbunden. Dabei verjüngt sich der Steg 20 zum Hals 4 hin, so daß sich seinem Übergang zum Hals 4 eine Sollbruchstelle 21 ergibt. Der Steg 20 dient der Stabilisierung des Abreißringes 15 in einer senkrecht zur Mittelachse der Kartusche 1 liegenden Ebene. Der Abreißring 15 kann sich somit auch nicht unbeabsichtigt verbiegen und im verbogenen Zustand über den Deckel 14 hinaus nach oben ragen.On the
In den
Die Funktion des Abreißringes 15 besteht darin, daß zum Öffnen des Deckels 14 zunächst von Hand die dünne Sollbruchstelle 21 zwischen dem Abreißring und dem äußeren Hals 4 abgerissen wird. Dies ist mit nur geringem Kraftaufwand möglich. Anschließend kann der Abreißring 15 um eine im Bereich des breiteren Steges 16 ungefähr tangential zum Abreißring 15 verlaufende Schwenkachse nach oben gebogen dabei mit einem oder mehreren Fingern einer Hand fest ergriffen werden, um sodann eine größere, nach oben gerichtete Zugkraft auf ihn auszuüben. Dabei kann der Durchmesser des Abreißringes 15 so gewählt sein, daß ein Hindurchgreifen mit einem Finger möglich ist, so daß sich die Ausübung der Kraft besonders einfach gestaltet und kein Abrutschen möglich ist.The function of the tear-
Die auf den Abreißring wirkende Zugkraft wird über den Steg 16 auf den Deckel 14 übertragen und führt zu einem Abreißen desselben von dem äußeren Hals 4 der Kartusche 1 entlang der Sollbruchstelle 17. Dabei beginnt dieses Abreißen benachbart zum Übergang des Steges 16 in den Deckel 14 und setzt sich entlang zweier Halbkreise bis zum gegenüberliegenden, ursprünglich dem Steg 20 benachbarten Bereich der Sollbruchstelle 17 fort, wo es mit der völligen Abtrennung des Deckels 14 vom Hals 4 endet. Gleichzeitig wird der kraftschlüssige Eingriff des Deckels 14 mit dem oberen Ende des inneren Halses 5 aufgehoben, so daß beide Austrittsöffnungen 11 und 12 freigelegt werden. Schließlich kann ein statischer Mischer mittels des Gewindes 10 auf den Hals 4 aufgeschraubt werden.The pulling force acting on the tear-off is transmitted via the
Eine andere Ausführungsform der Erfindung, die sich auf eine Zweikomponentenkartusche mit nebeneinanderliegenden Austrittskanälen für die beiden Komponenten bezieht, wird nachfolgend anhand der
Wie in
Erfindungsgemäß werden die Austrittskanäle 106 und 107 an ihren Enden, d.h. im Bereich ihrer jeweiligen Austrittsöffnungen 111 und 112 durch einen Verschluß 113 abgeschlossen, der nachfolgend anhand einer in
Die Deckel 114a und 114b werden gemeinsam mit den seinerseits einstückig in den Hals 104 und die Trennwand 105 übergehenden Gehäusen 102 und 103 im Spritzgußverfahren hergestellt. Hierdurch ist bereits eine hermetische Abdichtung beider Austrittskanäle 106 und 107 sowohl gegenüber der Umgebung, als auch gegeneinander gewährleistet, so daß auch eine vorzeitige Reaktion der beiden Komponenten in der Kartusche 101 ausgeschlossen ist.The
Wie in den
Durch die ohnehin notwendige Anordnung zweier Stege 116a und 116b in einem gewissen Abstand voneinander erfährt der Abreißring 115 bereits eine bessere Stabilisierung als der Abreißring 15 der ersten Ausführungsform durch den Steg 16 allein. Daher ist bei der zweiten Ausführungsform ein zusätzlicher gegenüberliegender Steg zur Verbindung mit dem Hals 104 weniger nützlich als bei der ersten. Ein solcher zusätzlicher Steg ist daher in den
Die Funktion des Abreißringes 115 entspricht im wesentlichen der zuvor anhand des ersten Ausführungsbeispiels beschriebenen Funktion des dortigen Abreißringes 15. Wenn entsprechend den
Die auf den Abreißring wirkende Zugkraft wird über die Stege 116a und 116b auf die Deckel 114a und 114b übertragen und führt zu einem Abreißen desselben von dem Hals 104 und von der Trennwand 105 der Kartusche 101 entlang der Sollbruchstellen 117a bzw. 117b. Dabei beginnt dieses Abreißen benachbart zu den jeweiligen Übergängen der Stege 116a und 116b in die Deckel 114ab bzw. 114b und setzt sich bis zum gegenüberliegenden Ende der Sollbruchstellen 117a bzw. 117b fort, wo es mit der völligen Abtrennung der Deckels 114a und 114b vom Hals 104 und der Trennwand 105 endet, womit beide Austrittsöffnungen 111 und 112 freigelegt werden. Schließlich kann ein statischer Mischer mittels des Gewindes 110 auf den Hals 104 aufgeschraubt werden.The pulling force acting on the tear-off ring is transferred via the
Die beiden Deckel 114a und 114b werden nach ihrer Abtrennung von der Kartusche 101 von noch dem Abreißring 115 zusammengehalten, so daß die Anzahl der beim Einsatz der Kartusche 101 anfallenden Kleinteile gering bleibt.The two covers 114a and 114b are held together after their separation from the
Eine dritte Ausführungsform der Erfindung, bei der es sich um eine Variante der soeben beschriebenen zweiten Ausführungsform handelt, wird nachfolgend anhand der
Die dritte Ausführungsform unterscheidet sich von der zweiten lediglich darin, daß die Übergänge von den Deckeln 214a und 214b zum Hals 204 bzw. zur Trennwand 205 der Kartusche 201 jeweils zusätzlich zu einer ersten Sollbruchstelle 217a bzw. 217 b, welche funktional der Sollbruchstelle 117a bzw. 117b der zweiten Ausführungsform entspricht, jeweils noch eine zweite Sollbruchstelle 222a bzw. 222b aufweisen. Hinsichtlich der Grundform und der einstückigen Ausbildung der Kartuschengehäuse 202 und 203, des Kartuschenhalses 204, der Trennwand 205 und des zwei Deckel 214a und 214b sowie einen Abreißring 215 und zwei Verbindungsstege 216a und 216b umfassenden Verschlusses 213 besteht Übereinstimmung mit der zweiten Ausführungsform.The third embodiment differs from the second only in that the transitions from the covers 214a and 214b to the
Wie die Detailansicht von
Der Abreißring 215 ist mit den Deckeln 214a und 214b jeweils an Stellen verbunden, die durch die ersten Sollbruchstellen 217a bzw. 217b vollständig umschlossen sind. Hierdurch wird erreicht, daß eine auf den Abreißring 215 ausgeübte Zugkraft sowohl in die ersten Sollbruchstellen 217a und 217b, als auch in die zweiten Sollbruchstellen 222a und 222b eingeleitet wird. Dies hat zur Folge, daß die ersten Sollbruchstellen 217a und 217b aufgrund der in diesem Bereich vergleichsweise geringeren Materialstärke als erste abreißen. Auf diese Weise können mit Hilfe des Abreißringes 215 die Austrittsöffnungen 211 und 212 mit einem ersten vorbestimmten Querschnitt geöffnet werden. Dieser erste Querschnitt ist für den Fall vorgesehen, daß die Kartusche 201 mit relativ niederviskosen Komponenten gefüllt ist, bei denen der Querschnitt der Austrittsöffnungen 211 und 212 entsprechend gering sein muß, um ein unkontrolliertes Auslaufen der Komponenten zu vermeiden.The tear-
Die zusätzlichen Sollbruchstellen 222a und 222b sind dafür vorgesehen, der Kartusche 201 auch die Eignung zur Füllung mit hochviskosen Komponenten zu verleihen, die einen entsprechend großen Querschnitt der Austrittsöffnungen 211 und 212 erfordern, um mit einem Druck üblicher Größe aus der Kartusche 210 ausgepreßt werden zu können. Da die Sollbruchstellen 222a und 222b, wie vorausgehend beschrieben, nicht mittels des Abreißringes 215 abgerissen werden können, müssen sie mit einem Schneidwerkzeug abgeschnitten werden. Dies ist jedoch relativ einfach, da die Position zum Ansetzen des Schneidwerkzeuges durch die Formgebung der Sollbruchstellen 222a und 222b von außen ohne weiteres erkennbar ist und diese Formgebung als außenseitig umlaufende Kerbe auch die Klinge des Schneidwerkzeuges nach ihrem Ansetzen in der richtigen Position hält und so ein Abrutschen beim Aufschneiden wirksam verhindert.The additional
Wie
Eine vierte Ausführungsform der Erfindung ist in den
Hierzu ist der in radialer Richtung zentrale Bereich des Deckels 314, welcher im verschlossenen Ausgangszustand der Kartusche 301 die gegenseitige Abdichtung der Austrittskanäle 306 und 307 bewirkt, an seiner im Ausgangszustand der Kartusche 301 abgewandten Oberseite spiegelbildlich zur Unterseite geformt. Nicht spiegelbildlich dupliziert ist allerdings derjenige radiale Abschnitt 323 des Deckels 314, welcher sich an den Übergang zum äußeren Hals 304 in Form der Sollbruchstelle 317 anschließt, da anstelle der einstückigen Verbindung beim Aufsetzen des umgedrehten Deckels 314 eine andere Art der Abdichtung nach außen hergestellt werden muß.For this purpose, the central region of the
Diese Abdichtung nach außen wird durch einen radial äußeren Randabschnitt 324 der Oberseite des Deckels 314 erreicht, der sich becherförmig nach oben erstreckt, wobei seine vertikale, im wesentlichen zylindrische Außenseite einen radialen Absatz 325 aufweist, an dem sich sein Außendurchmesser abrupt etwas verringert. Der verringerte Außendurchmesser des freien Endabschnitts 326 des Randabschnitts 324 ist minimal größer als der Innendurchmesser des äußeren Halses 304 der Kartusche 301. Die vertikale Lage des Absatzes 325 entspricht ungefähr der Höhe der im radialen Mittelteil der Oberseite des Deckels 314 vorgesehenen Dichtelemente, die ein Spiegelbild der im Mittelteil der Unterseite des Deckels vorgesehenen Dichtelemente darstellen.This seal to the outside is achieved by a radially
In den
Die
Wie insbesondere aus
Der Absatz 325 bildet einen vertikalen Anschlag für die Einpreßtiefe besagten Randabschnittes 324 und damit zugleich des gesamten Deckels 314 beim Wiederverschließen der Kartusche 301. Dies bedeutet, daß der kraftschlüssige Eingriff des Randabschnittes 324 mit dem Hals 304 nur zwischen dem Absatz 325 und dem freien Ende des Randabschnittes 324 im Bereich Endabschnitts 326 mit dem geringeren Durchmesser erfolgt. Es versteht sich von selbst, daß die Tiefe der Strukturierung des Deckels 314 in seinem radial inneren Bereich ausreichend groß sein muß, um einen vertikalen Anschlag zwischen dem oberen Ende des inneren Halses 305 und dem Deckel 314 zu vermeiden. Nur dann wirkt der Absatz 325 als vertikaler Anschlag.The
Der Abreißring 315 verläuft, wie die
Eine fünfte und letzte Ausführungsform der Erfindung ist in den
Um die Wiederverschließbarkeit zu erreichen, erstrecken sich von den im Ausgangszustand über die Sollbruchstellen 417a und 417b jeweils einstückig in den Hals 404 und die Trennwand 405 übergehenden Rändern der Deckel 414a und 414b aus jeweils im wesentlichen zylindrische Randabschnitte 424a bzw. 424b nach oben, so daß die Deckel 414a und 414b jeweils insgesamt eine becherförmige Gestalt erhalten. Wie bei der vierten Ausführungsform gemäß den
Die in
Anhand
Alternativ zu einem Abreißring wie in den Ausführungsbeispielen der erfindungsgemäßen Kartusche nach den
Claims (16)
- A two-component or multicomponent cartridge (1; 101; 210; 301; 401) having at least one cartridge neck (4; 104; 204; 304; 404) with at least two outlet openings (11, 12; 111, 112; 211, 212; 311, 312) which are closed by a closure (13; 113; 213; 313; 413) which is connected in one piece to the cartridge neck (4; 104; 204; 304; 404), wherein the closure (13) has at least one cover (14; 114a, 114b; 214a, 214b; 314; 414a, 414b) connected in one piece to the cartridge neck (4; 104; 204), wherein this connection is formed as a desired break position over at least one part region and the cartridge (1; 101; 201; 301; 401) can be opened by destroying this connection in that the connection tears open on application of a specific force along at least one desired break position and the outlet openings (11. 12; 111, 112; 211, 212; 311, 312) are released, characterised in that the closure (13) has at least one tear element (15; 115; 215; 315; 415; 515) in the form of a tear ring (15; 115; 215; 315; 415) or of a tear tab (515) connected in one piece to the cover (14; 114a, 114b; 214a, 214b; 314; 414a, 414b) via at least one connection bar (16; 116a; 116b, 216a; 216b; 416a; 416b; 516), wherein the connection between the cover (14; 114a, 114b; 214a, 214b; 314; 414a, 414b) and the cartridge neck (4; 104; 204; 304; 404) can be torn open manually by exertion of a pulling force onto the tear element (15; 115; 215; 315; 415; 515), and wherein both outlet openings (11, 12; 111, 112; 211, 212; 311, 312) can be opened manually simultaneously by a single tear element (15; 115; 215; 315; 415; 515) in a simple manner without additional aids using one or more fingers of a hand by exerting a pulling force onto the tear element (15; 115; 215; 315; 415; 515).
- A two-component or multicomponent cartridge in accordance with claim 1, characterised in that the tear element (15; 115; 215; 315; 415; 515) is arranged so that it does not substantially project in the longitudinal direction of the cartridge (1; 101; 201; 301; 401) beyond the end of the cartridge (1; 101; 210; 301; 401), including the cover (14; 114a, 114b; 214a, 214b; 314; 414a, 414b) to avoid an unintentional tearing open of the connection between the cover (14; 114a, 114b; 214a, 214b; 314; 414a, 414b) and the cartridge neck (4; 104; 204).
- A two-component or multicomponent cartridge in accordance with one of the claims 1 or 2, characterised in that it is a two-component cartridge having two outlet openings (11, 12; 111, 112; 211, 212) which are closed by a single cover (14; 114a, 114b; 214a, 214b; 314, 414a, 414b); and in that a single tear element (15; 115; 215; 315; 415; 515) is provided, with both outlet openings (11, 12; 111, 112; 211, 212) being able to be opened simultaneously by pulling at this tear element.
- A two-component or multicomponent cartridge in accordance with any one of the claims 1 to 3, characterised in that the tear element (15; 115; 215; 315; 415; 515) is arranged next to the cartridge neck (4; 104; 204).
- A two-component or multicomponent cartridge in accordance with any one of the claims 1 to 4, characterised in that the tear element (15; 115; 215; 315; 415; 515) is formed by a tear ring (15: 115; 215; 315; 415) which is arranged in a plane disposed perpendicular to the longitudinal axis of the cartridge (1; 101; 201; 301; 401).
- A two-component or multicomponent cartridge in accordance with claim 5, characterised in that the tear ring (15; 115; 215; 315; 415) is arranged substantially at the level of the cover (14; 114a, 114b;: 214a, 214b; 314; 414a, 414b).
- A two-component or multicomponent cartridge in accordance with any one of the claims 1 to 6, characterised in that the cartridge (1; 301) has an outer cartridge neck (4; 304) and an outer cartridge neck (5; 305) with a respective one outlet opening (11, 12; 311, 312), with the two outlet openings (11, 12; 311, 312) being arranged coaxial to one another and with the closure (13) closing the outer outlet opening (11; 311) with respect to the environment and the inner outlet opening (12; 312) with respect to the outer outlet opening (11;:311).
- A two-component or multicomponent cartridge in accordance with any one of the claims 1 to 6, characterised in that the cartridge (101; 201; 401) has two outlet openings (111, 112; 211, 212; 411, 412) arranged next to one another and separated from one another by a partition wall (105; 205; 405), with the cover (114a, 114b; 214a, 214b; 314; 414a, 414b) closing both outlet openings (111, 112; 211, 212; 411, 412) with respect to the environment in that said cover is connected both to the cartridge neck (104; 204; 404) and to the partition wall (105; 205; 405).
- A two-component or multicomponent cartridge in accordance with claim 8, characterised in that two separate covers (114a, 114b; 214a, 214b; 414a, 414b) are provided of which each one closes a respective one of the two outlet openings (111, 112; 211, 212; 411, 412); and in that the two covers (114a, 114b; 214a, 214b; 414a, 414b) are connected to one another via the tear element (115; 215; 415; 515).
- A two-component or multicomponent cartridge in accordance with any one of the claims 1 to 9, characterised in that suitable sealing elements are provided at the upper side of the or each cover (314; 414a, 414b) remote from the interior of the cartridge (301; 410) for reclosing the cartridge (301; 410).
- A two-component or multicomponent cartridge in accordance with any one of the claims 1 to 10, characterised in that the tear element (15; 115; 215; 315; 415; 515) is connected to the cover (14; 114a, 114b; 214a, 214b; 314; 414a, 414b) by a flexible connection element (16; 116a, 116b; 216a, 216b; 316; 416a, 416b; 516).
- A two-component or multicomponent cartridge in accordance with claim 11, characterised in that the connection element is formed by a flexible bar (16; 516) or by a plurality of flexible bars (116a, 116b; 216a, 216b; 316; 416a, 416b).
- A two-component or multicomponent cartridge in accordance with claim 12, characterised in that the tear element formed as a tear ring (15; 315) is connected to the cartridge neck (4; 304) by at least one further bar (20; 320); and in that the further bar (20; 320) forms or has a further desired break position (21; 321) which tears first on exertion of a pulling force on the tear ring (15; 315).
- A two-component or multicomponent cartridge in accordance with any one of the claims 1 to 13, characterised in that, in addition to the desired break position (217a, 217b) which can be torn off by means of the tear element (215; 315), at least one further desired break position (222a; 222b) is provided for cutting with a cutting tool, with the cross-section of the outlet openings (211, 212) resulting by its cutting open being greater than that cross-section which results by the tearing open by means of the tear ring (215) of the desired break position (217a, 217b) which can be torn open.
- A two-component or multicomponent cartridge in accordance with any one of the preceding claims, characterised in that the cover (14; 114a, 114b; 214a, 214b; 314; 414a, 414b) does not substantially project beyond the upper end of the cartridge neck (4; 104; 204).
- A two-component or multicomponent cartridge in accordance with any one of the preceding claims. characterised in that it is manufactured from plastic in an injection moulding process.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/872,137 US7306130B2 (en) | 2003-06-27 | 2004-06-17 | Seal for a two-component cartridge |
JP2004188816A JP4234068B2 (en) | 2003-06-27 | 2004-06-25 | 2-component cartridge |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20309931U | 2003-06-27 | ||
DE20309931U DE20309931U1 (en) | 2003-06-27 | 2003-06-27 | Closure for a two-component cartridge |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1491460A2 EP1491460A2 (en) | 2004-12-29 |
EP1491460A3 EP1491460A3 (en) | 2006-10-18 |
EP1491460B1 true EP1491460B1 (en) | 2013-01-16 |
Family
ID=33395180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030024323 Expired - Lifetime EP1491460B1 (en) | 2003-06-27 | 2003-10-24 | Closure for a two-component cartridge. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1491460B1 (en) |
DE (1) | DE20309931U1 (en) |
ES (1) | ES2399359T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019101645A1 (en) * | 2019-01-23 | 2020-07-23 | 3lmed GmbH | Application system with double tamper-evident closure |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20311287U1 (en) * | 2003-07-23 | 2004-12-02 | Sulzer Chemtech Ag | Multicomponent cartridge |
DE202006002989U1 (en) * | 2006-02-24 | 2007-07-05 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Multicomponent cartridge |
DE102008007305A1 (en) | 2007-11-06 | 2009-05-07 | Fischbach Kg Kunststoff-Technik | packaging container |
DE102008013083B4 (en) | 2008-03-07 | 2014-05-08 | Adcatec Gmbh | Integrally produced multicomponent cartridge |
CA2714706A1 (en) | 2009-10-26 | 2011-04-26 | Sulzer Mixpac Ag | Container having a shock-absorbing element |
TW201138983A (en) * | 2009-12-16 | 2011-11-16 | Sulzer Mixpac Ag | Cartridge with closure stopper |
GB0922732D0 (en) * | 2009-12-31 | 2010-02-17 | Kordan Mark A | Improved adaptor |
DE102010030402A1 (en) * | 2010-06-23 | 2011-12-29 | Gfv Verschlusstechnik Gmbh & Co. Kg | Cartridge for squeezing of joint seal, has cap-shaped region formed on threaded portion separated from threaded portion and forming cap in separated state to close outlet orifice that is formed at cartridge neck |
DE102017117557A1 (en) | 2017-08-02 | 2019-02-07 | 3lmed GmbH | application system |
DE102019111183A1 (en) * | 2019-04-30 | 2020-11-05 | Tesa Nie Wieder Bohren Gmbh | Glue applicator |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3289887A (en) * | 1962-07-31 | 1966-12-06 | Colgate Palmolive Co | Dispensing of reactive cleansing materials |
FR1369260A (en) * | 1962-09-18 | 1964-08-07 | Colgate Palmolive Co | Improvement of distributor packaging |
US3591031A (en) * | 1969-08-07 | 1971-07-06 | Automatic Liquid Packaging | Bottle opener |
US3667638A (en) * | 1969-12-11 | 1972-06-06 | Abbott Lab | Lever opened sealed container |
US3750820A (en) * | 1970-03-02 | 1973-08-07 | M Labarre | Stopper |
DE7425326U (en) * | 1974-07-25 | 1974-10-24 | Christoph Mundorf Fa | Wine bottle stopper |
US4463867A (en) * | 1983-08-19 | 1984-08-07 | Heinz Plastic Mold Co. | Plastic container with easily removable, integrally formed cap |
US4884703A (en) * | 1988-09-27 | 1989-12-05 | Cp Packaging Inc. | Container and closure assembly |
DE4340553A1 (en) * | 1993-11-29 | 1995-06-01 | Tetra Pak Aps Gmbh | Opening device on a plastic packaging |
ES2164750T3 (en) * | 1995-03-07 | 2002-03-01 | Wilhelm A Keller | BAYONETA FIXING DEVICE FOR HOLDING AN ACCESSORY TO A CARTRIDGE OF MULTIPLE COMPONENTS OR DISTRIBUTING DEVICE. |
US5676280A (en) * | 1995-08-04 | 1997-10-14 | Illinois Tool Works Inc. | Anti cross-contamination dual cartridge dispenser |
GB9618206D0 (en) * | 1996-08-30 | 1996-10-09 | Rawson Frances F H | A closure for a container, a sealed container and a method of closing an opening of a container |
DE19809255B4 (en) * | 1998-03-05 | 2004-09-16 | Kkt Kaller Kunststoff Technik Gmbh | Cartridge for holding a viscous or pasty mass |
DE29807938U1 (en) * | 1998-05-02 | 1998-10-15 | Ritter, Frank Georg, 86836 Untermeitingen | Two-component cartridge for plastic masses |
DE19943877B4 (en) * | 1999-09-14 | 2008-08-07 | Alfred Fischbach Kg Kunststoff-Spritzgusswerk | Two-component cartridge for flowable media |
US6484904B1 (en) * | 2001-05-21 | 2002-11-26 | Tah Industries, Inc. | Two-component cartridge system |
-
2003
- 2003-06-27 DE DE20309931U patent/DE20309931U1/en not_active Expired - Lifetime
- 2003-10-24 EP EP20030024323 patent/EP1491460B1/en not_active Expired - Lifetime
- 2003-10-24 ES ES03024323T patent/ES2399359T3/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019101645A1 (en) * | 2019-01-23 | 2020-07-23 | 3lmed GmbH | Application system with double tamper-evident closure |
Also Published As
Publication number | Publication date |
---|---|
DE20309931U1 (en) | 2004-11-04 |
EP1491460A2 (en) | 2004-12-29 |
EP1491460A3 (en) | 2006-10-18 |
ES2399359T3 (en) | 2013-03-27 |
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