EP2743200B1 - Cartridge - Google Patents
Cartridge Download PDFInfo
- Publication number
- EP2743200B1 EP2743200B1 EP12008384.5A EP12008384A EP2743200B1 EP 2743200 B1 EP2743200 B1 EP 2743200B1 EP 12008384 A EP12008384 A EP 12008384A EP 2743200 B1 EP2743200 B1 EP 2743200B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- cartridge
- valve body
- end cap
- moulding
- 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.)
- Not-in-force
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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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
- B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
- B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
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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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
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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
- B05C17/00576—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 characterised by the construction of a piston as pressure exerting means, or of the co-operating container
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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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
Definitions
- the present invention relates to a cartridge having a cylindrical housing which encloses a between a movably held in the cylindrical housing and sealed against the inner wall of the cylindrical housing piston and provided with an outlet end cap receiving space, wherein the cylindrical housing and the end cap from the inside coated cardboard are formed and the end cap has an extending in the axial direction of the cylindrical housing edge, which is surrounded by an inwardly turned end portion of the cylindrical housing.
- WO 2004/106217 A2 is a dispenser for a liquid or semi-solid material having a container having a valve member at one end and a piston at the other.
- the valve member includes central and annular portions, the annular portion forming a good seal with the interior of the container and the central portion having a plurality of resilient flaps forming a valve.
- the valve element further comprises an annular sealing portion which is bent outwardly against the inner wall of the container during delivery of the material.
- a dispensing container with a dispensing closure wherein the closure has a uniform construction.
- the dispensing closure includes a generally annular metal ring having an outer peripheral edge and a central opening surrounded by an inner peripheral edge, the ring being secured to the rim at one end of the container at the container body sidewall.
- An overmolded polymer layer is formed with an annular outer portion over the inner surface of the ring and formed with a central plate integral with the outer portion to cover the central opening in the ring.
- a liquid dispensing system having a movable piston slidably mounted in a cylinder and a sealing head having a receptacle for a seal.
- the seal assembly includes a self reclosing transverse slot opening, an inner sealing ring for a corresponding coupling of a compatible device, and a raised peripheral sealing ring for sealing with a closure cap.
- the present invention wants to further develop in particular a corresponding cartridge, as it comes as a sauce dispenser for ketchup, spice or the like used in the catering and can also serve as packaging of the contents for longer storage and / or transport.
- the cartridge as such is thereby clamped in a caulking gun and - as usual in building technology - conveyed by advancing a ratchet driven ram, which presses against the movable piston, in this case sets the recorded in the cartridge sauce under internal pressure, as a result, through the outlet opening Exits in portions.
- the present invention is based on the problem to improve a cartridge of the type mentioned for the catering industry.
- the present invention proposes a cartridge having the features of claim 1.
- This is characterized by a made of an elastic plastic valve body having at least one valve flap which seals the outlet opening in a starting position, and a mounting flange for abutment with the end cap, which is provided on an inner wall of the end cap and sealed with the end cap from.
- the valve body of the cartridge of the invention forms the outlet port, i. the opening for delivery of contents of the piston outwards. Due to the elastic properties of the plastic, the valve flap (s) tend to flex back into their original position, in which the valve flaps close the outlet opening.
- the cartridge according to the invention is preferably one as in DE 100 06 288 A1 described cartridge.
- the disclosure content of this document is included in the disclosure of the present application documents with regard to the specific embodiment of the cartridge.
- In this case usually ensures a mounting flange of the valve body a sealing and regularly the entry of oxygen preventing sealing, so that the food contained in the cartridge can be preserved in the cartridge for a long time.
- the cylindrical housing of the cartridge according to the invention is preferably made of a relatively inexpensive to produce packaging material, for example, a thin rolled and longitudinally connected, for example, welded foil or cardboard.
- a relatively inexpensive to produce packaging material for example, a thin rolled and longitudinally connected, for example, welded foil or cardboard.
- the end cap is usually formed material identical to the cylindrical housing.
- the cylindrical housing is formed together with the end cap as a unit made of cardboard, which is coated on both sides, in particular coated with a plastic.
- the end cap preferably has an edge extending in the axial direction of the cylindrical housing, which is surrounded by an inwardly turned end section of the cardboard material forming the cylindrical housing.
- the three-layer structure in the end cap formed by the free end of the cylindrical housing, the arcuate edge of the end cap and the embraced end portion of the cylindrical housing is usually intimately connected by crimping, so that at this transition from the end cap to the cylindrical housing a simple but effective conclusion is formed. Flanging can be done purely mechanically. Alternatively or additionally, the connection can be made by welding at least between the embossed section and the likewise plastic coated edge of the end cap in order to achieve a secure sealing of these layers.
- the valve shaped body has at least one, preferably a plurality of valve flaps, which seal the outlet opening in a starting position in a sealing manner.
- the present invention seeks to provide a cartridge as a storage and dosing agent for foods having a relatively low viscosity.
- the filling amount is preferably between 0.5 and 3 liters, preferably between 0.6 and 1.5 liters, more preferably between 0.7 and 1 liter, which is an optimum between a sufficiently large packaging unit for the catering industry with due consideration of hygienic requirements and a food grade Storage also in the context of dosing out of liquid from the cartridge represents.
- valve body Before the first metering the valve body is usually covered by a label, which on provided the outside of the end cap is usually releasably sealed and accordingly prevents any entry of air or contamination on the inlet side in any case before the first metering of cartridge contents, so that a hygienic storage of the cartridge contents is ensured for long-term storage in the cartridge.
- the restoring force of the valve flap (s) into the starting position is brought about by adequate shaping of the valve shaped body and appropriate selection of the elasticity of the elastic plastic.
- the valve flap (s) usually abuts against boundary surfaces which are formed by the valve shaped body, preferably by other valve flaps. This ensures a high density.
- the tightness of the valve body according to the invention is such that also products with a viscosity of Bostwick of about 3 cm / 30 sec. can be stored at 20 ° C after the first dosing, without the cartridge contents dripping out of the outlet opening with a vertical cartridge. These viscosity values are to be understood at room temperature (20 ° C.).
- the product has a density of between 0.5 and 1.5, preferably of between 0.9 and 1.1 kg / dm 3 and the liquid column with a vertical cartridge over the outlet opening a height of between 150 and 250 mm.
- the valve body should be designed such that in products with the above-mentioned viscosity does not escape unintentionally through the outlet even with shocks and strong shocks. A corresponding leakage of product from the cartridge is due to the material nature and construction of the valve body to be prevented even if the cartridge with the outlet opening remains down for several hours after a first removal in a rest position.
- valve body prevents liquid contents of the cartridge from draining the contents of the cartridge at a force of advancement on the caulking gun, typically below 60 to 80N.
- This feed force is calculated for a cartridge with a diameter of between 70 and 90 mm, preferably 80 mm and acts on the outside of the piston.
- the valve body is preferably designed so that it is suitable for retrofitting existing cartridges.
- the valve body preferably has a mounting flange, which is usually provided on an inner wall of the end cap, but at least the position of the end cap that makes up the structural integrity of the cap. This may be a layer of cardboard or thin plastic film.
- the mounting flange is usually part of the unitary valve body and may be sealed with the material forming the end cap. In such a seal, the mounting flange may also be clamped between adjacent layers without having a tight cohesive contact with the layers. The layers are rather sealed together with the inclusion of the valve body.
- Such a seal may for example be formed between the plastic surface of the end cap on the inside thereof, which plastic surface is formed either by a plastic film or a plastic coating on a cardboard layer.
- the valve body can be pressed with its mounting flange only due to the internal pressure against the inner surface of the end cap and thus the end cap be sealingly connected to the valve body.
- the valve body according to the invention preferably has a valve body ring to which the valve flap (s) are fastened and which forms a base of the valve body which remains substantially undeformed when the valve flap is flexed from the initial position to an outwardly projecting dispensing position and provides the necessary return forces to allow the valve body to flex After valve removal, flex valve lugs back to their original position and close the outlet opening in a sealed manner.
- the valve body ring can also be formed by a radially inner region of the mounting flange.
- valve body All functional areas of the valve body are preferably formed as segments of a uniform valve body.
- a single valve body is used as part of the cartridge. It goes without saying that a plurality of such valve bodies can be provided on a single cartridge to improve product distribution.
- the valve body according to the present invention is a three-dimensional structure, which also has a concrete extent in the axial direction of the cylindrical housing.
- the present invention also differs from that of the EP 0 319 861 Prior art cartridge in which a plurality of outlet openings are formed by crossed slots in a polyester film, which is fastened together with other, the polyester film between them clamping or stiffening annular discs.
- This polyester film lies in the axial direction inwardly toward the front end of the end cap, which is formed by the outer surface of a polyethylene disc.
- the slit portion of the polyester film is moved from one forward, i. Surrounded by the distal edge and formed by the overlying layers of the end cap edge on which contamination can nest and which precludes hygienic continuous operation of the cartridge to remove food.
- the valve body is only slightly in the axial direction.
- the valve body is formed so that the distal end of the valve body axially slightly above or equal in height with the distal, i. free surface of the end cap is.
- Slightly means here in particular a projection of the valve body with respect to the free surface of not more than 2 mm, preferably not more than 1 mm or not more than 0.5 mm.
- This washer is regularly that part of the end cap which is directly connected to the cylindrical housing and accordingly ensures the tightness at the distal end between the cylindrical housing and the end cap and carries the valve body.
- the at least one valve flap is regularly arranged inside the valve body ring.
- the valve flap is in this embodiment not at the front axial end of the cartridge, but is offset from the front free end axially inwardly back.
- a ring portion is provided, the wall thickness is less than the wall thickness of the valve body ring and / or the valve flap.
- This ring section allows prefiltering of the valve flap (s) during removal of food from the cartridge due to increased internal pressure.
- the ring section serves as a kind of joint around which the valve flap (s) project outwards and finally flex outwards in this projected position in order to let out product to be conveyed through the outlet opening.
- the protuberance of the valve flap (s) into the protruding position is improved by a development of the present invention, in which a cylinder section connected radially inward to the ring section is provided, whose proximal end projecting into the valve body ring is connected to the valve flap and flaps.
- the cylinder portion does not necessarily have to be strictly cylindrical. Rather, it can easily slightly taper slightly radially. However, the cylinder section has a predominantly axial extension and accordingly connects the annular section, which extends predominantly in the radial direction, with the valve flap or likewise extending in the radial direction.
- the ring portion together with the cylinder portion allow everting of the area located within the valve body ring. Through the ring portion and the cylinder portion, different pivot points can be formed around which the valve flap (s) can easily flex forward.
- valve flaps are preferably distributed in the circumferential direction, which have a radially inwardly tapering cross-section.
- This embodiment prevents unwanted opening of the valve flaps when pre-slipping the valve flaps.
- the valve flaps usually have a wall thickness at least at their radially outer end connected to the cylinder section and / or the ring section, which is greater than the wall thickness of the ring section or cylinder section.
- the valve lugs form a relative to the radially outer and reaching to the valve body ring areas of the valve a relatively dimensionally rigid sealing disc, the release only after Vorstülpen and due to the increased internal pressure by prefilming the valve lobes.
- the cylinder portion and the valve flaps have an axial extent of between 3 and 8 mm and that not more than a quarter of this axial extent projects beyond the valve body.
- the ring section protrudes axially forward from the valve body ring and that the configuration of the valve body proceeds proximally at the transition between the ring section and the cylinder section.
- the radially inner portion of the ring portion accordingly forms in the initial position the axially furthest from the cartridge part of the valve. From this projecting part, the entire axial extension of cylinder section and valve flaps is usually measured according to the development discussed here.
- the valve lobes are preferably located within the valve body ring, preferably in at about the middle axial height. Alternatively, the valve flaps may also protrude proximally over the valve body ring.
- an inwardly recessed offset is formed between the valve body ring and the mounting flange.
- This offset is usually formed in the form of a circumferential annular groove and can accordingly accommodate, for example, the material forming the end cap. This is preferably fitted in the annular groove.
- a fixedly connected to the cylindrical housing bottom is regularly provided, which is connected in the manner described above by crimping and optionally welding to the cylindrical housing.
- the valve body can be provided on an attachment disc, which can only be applied sealingly against the end cap and reused when the cartridge is emptied.
- the attachment disc is inserted between the cartridge and an end-side and formed by the cartridge gun holding surface. Accordingly, when dosing out food from the cartridge, the cartridge is pressed with its end cap against the attachment disc.
- the mounting flange of the valve body settles sealingly against the end cap and surrounds the outlet opening formed by the end cap, so that material can pass through this outlet opening and through the attachment disc to the valve body and can be discharged there in the manner described above.
- the mounting flange of the valve body is therefore either sealingly applied to the inner surface of the end cap or between an outer surface of the end cap and the attachment disc.
- sealing silicone is preferably selected as the elastic plastic for the formation of the valve body.
- the end cap or the attachment disc has a film which defines a central recess for metering out the food.
- the film is perforated close to the edge of the recess. Accordingly, the recess is usually circumferentially surrounded by one or more rows of holes.
- the valve body is connected by molding with the film. When encapsulating flows through the valve body forming elastic Plastic material the perforation, so that there is a permanent and tight connection between the valve body and the film.
- the said mounting flange can be formed solely by the material of the encapsulation within the perforation. Usually, however, results on both sides of the film an accumulation of elastic plastic and thus a positive attachment of the mounting flange.
- the valve body is preferably heat sealed to the washer of the end cap.
- the fastening flange of the valve molding may be arranged between the annular disk and a sealing film connected to the inner surface of the annular disk.
- This sealing film is sealed at least with the washer, including the mounting flange.
- the sealing film may also be optionally connected to the inner surface of the mounting flange, for example glued or welded.
- valve body is arranged as an insert within a holding mold part.
- This retaining molding has a bearing against the inner surface of the annular disc and thus sealed retaining flange and a distal fitting to the valve body retaining collar.
- the valve body is sealingly applied against this retaining collar.
- sufficient sealing occurs both with respect to the retaining collar and with respect to a peripheral phase boundary which is regularly formed by the valve body ring of the valve molding on the one hand and an inner circumferential surface of the retaining molding. This phase boundary usually extends in the axial direction of the cylindrical housing.
- the present invention further claims an attachment disk of the type mentioned above.
- This attachment disc has a valve body according to one of claims 1 to 14.
- FIG. 1 shows a top perspective view of a cartridge 2, which in accordance with the disclosure of DE 100 06 288 A1 a cylindrical container 3 is formed.
- FIG. 1 lets recognize a bottom 4, which is enclosed by a beaded edge 6.
- the bottom 4 has a cardboard ring 8 with a central recess 10 which is covered by a film 12 which is sealed on the inside of the cardboard ring 8 and provided within the recess 10 with a plurality of cross slots 14, the outlet 16 for contained in the cartridge 2 To train food.
- an attachment disc In the Figures 1 and 2 is designated by reference numeral 18 an attachment disc.
- This attachment disc 18 is made of plastic, such as polyethylene and is injection molded.
- the attachment disc 18 has an outer diameter such that the attachment disc 18 can be arranged within the beaded edge 6 with little play, preferably can be fitted into the flanged edge 6 in order to fix the attachment disc 18 removably to the cartridge 2.
- the attachment disc 18 carries a bore 20 (see. FIG. 4 ) penetrating valve body 22.
- This valve body 22 has a mounting flange 24, which forms the proximal end of the valve body 22 and carries a marked with reference numeral 26 valve body ring, which is spaced by an annular groove 28 against an outer surface 30 of the mounting flange 24.
- valve body ring 26 of the valve body 22 By relatively radially thick valve body ring 26 of the valve body 22 is stiffened.
- the wall thickness of the valve body ring 26 is about twice as large as the radial wall thickness at the level of the annular groove 28.
- a continuous smooth inner peripheral surface 32 extends from the mounting flange 24 to the distal end of the valve body ring 26. This is surmounted by a ring portion 34 whose Inner peripheral surface is continued by the inner peripheral surface 32 of the valve body 22 initially straight.
- the ring portion 34 extends slightly conically and radially inwardly from the valve body ring 26.
- the distal end of the valve body 22 is formed by a transition region between the ring portion 34 and a designated with reference numeral 36 cylinder portion.
- the cylinder portion 36 and the ring portion 34 are formed approximately with the same wall thickness.
- the cylinder portion 36 extends substantially in the axial direction and carries at its proximal end a plurality of valve flaps 38 which are circumferentially spaced from each other and are separated from each other by a central Phillips, and substantially sealingly abut each other when the valve body 22, the in FIG. 3a shown starting position occupies.
- valve body ring 26 and the valve lugs 38 have an axial extent, which in the present case projects beyond the front end side of the valve body ring 26 by only one fifth, but is accommodated in the valve body ring 26 via the axial residual length.
- the valve in the starting position, has a small axial extent, which is essentially limited to the extension of the valve body ring 26 via the material of the attachment disc 18 or the end cap 4 plus the axial extent of the ring portion 34.
- the relatively thin cross-section of the cylinder portion 36 is realized primarily at the transition region to the ring portion 34.
- the cylinder portion 36 thickens and merges into the outer surface of the valve flaps 38 on the outer surface via a concave curvature.
- Corner 40 formed in the region of the smallest radius between the cylinder portion 36 and the valve flap 38. From this corner region 40, the wall thickness of the valve flaps 38 decreases in the radial direction.
- the aforementioned cross slot is located only on the substantially radially extending portions of the valve tabs 38, ie ends radially in front of the corner portion 40 and forms an outlet 41 from.
- attachment plate 18 is usually applied to the bottom 4 of the cartridge 2, while the cartridge 2 is vertical. Thereafter, the cartridge 2 is inserted into a caulking gun. The attachment disc 18 is clamped between a holding plate of the cartridge gun and the bottom 4. An axially drivable plunger of the caulking gun is applied against a not shown in the figure, sealed in the cartridge 2 recorded piston. When the cartridge gun is actuated, this piston is urged in the direction of the bottom 4 forming an end cap 40 of the cartridge 2. In this case, between the piston and the end cap 40 located sauce is placed under internal pressure. This internal pressure causes the valve flaps 38 together with the cylinder portion 36 to be everted outwards.
- the cartridge gun is usually designed so that, following the advancement of the delivery plunger and due to the slight internal pressure and because of the adhesion of the piston to the wall of the cylindrical housing 3 of the cartridge 2, the liquid is withdrawn into the cartridge 2.
- FIG. 4 shows a first variant for attaching the valve body 22 to the attachment plate 18.
- Its bore 20 is dimensioned such that it rests in the outer circumference in the region of the annular groove 28 basically and accordingly in the axial direction between a projection formed by the valve body ring 26 and the mounting flange 24 is clamped.
- the mounting flange 24 can be pressed and applied solely by internal pressure against the attachment plate 18.
- FIG. 4 has been described as an example in which the valve body 22 is connected to the attachment plate 18, in the same way the valve body 22 may alternatively also directly against the ground, ie the end cap 4 is fixed and completely dispensed with an attachment disc.
- FIG. 5 shows an alternative embodiment for fixing the valve body 22.
- the film 12 has a central recess 42 which is arranged approximately concentrically to the central longitudinal axis of the cylindrical container 3 of the cartridge 2.
- the edge region of this recess 42 is perforated.
- two rows of holes extend around the edge of the recess 42 in the circumferential direction and form a perforation 44.
- the valve body 22 is formed by molding the edge region of the film 12. In this encapsulation, the plastic material forming the valve shaped body 22 flows through the perforation 44 and accordingly connects the shaped valve body 22 with the sheet material 12 in a form-fitting and cohesive manner.
- FIG. 6 shows an alternative embodiment.
- the mounting flange is clamped between a top film 46 and a bottom film 48 and sealing sealed, for example by gluing.
- the two films 46, 48 may be welded together with the inclusion of the mounting flange 24 and / or radially outside of the mounting flange 24.
- valve body 22 With reference to the FIGS. 4 to 6 discussed variants for mounting the valve body 22 apply both to the attachment to an attachment disc 18 and to an end cap. 4
- the solution according to the invention has the advantage that even low-viscosity liquids, which are received as food in a cartridge 2 of the type mentioned, even with an arrangement of the cartridge 2 with the end cap 4 down permanently in the cartridge 2 may remain and not drip out through the outlet opening 41.
- Vorstülpen the valve body 22 in the product removal and the special configuration of the valve body 22 a nearly complete emptying can be guaranteed.
- the valve body 22 can be easily maintained, since this - as for example FIG. 2 visible - protrudes from the mounting flange and also from the end cap 4 and the attachment plate 18. In the case of an attachment disc 18, this can be removed and cleaned separately and reused for the next cartridge 2.
- FIG. 7 shows an alternative embodiment of a valve body 22.
- the same elements are compared to the embodiment described above with the same reference numerals.
- the embodiment shown there on the one hand characterized in that the valve body ring 26 is not formed thickened in the axial direction, but is formed by a radially inner portion of the mounting flange 24.
- This in FIG. 7 embodiment shown has a very small axial extent of between 3.5 and 4.5 mm.
- a marked with reference numeral 50 distal surface of the valve body 22 only slightly surmounted by an annular disk forming a cardboard ring 8.
- the valve body 22 projects less than 1 mm relative to the outer surface of this annular disc 8.
- the material forming the annular disc 8 is bent radially outward to form a radially extending edge 52.
- This edge 52 is located between a distal end of the cylindrical housing and a designated end portion of the sheet-like material designated 54, which forms the cylindrical housing 3.
- This can be plastic film or cardboard.
- a cardboard is usually coated inside with a plastic, such as polyethylene.
- the sealing film 56 can with the inner surface of the mounting flange 24 connected, for example, be glued. In the edge region, the sealing film 56 may axially bend around with the edge 52 of the annular disc 8 and accordingly be wrapped by the cylindrical housing 3 ausformenden material. This peripheral structure is beaded around to connect the cylindrical housing 3 in a fluid-tight manner with the annular disc 8 and thus the bottom 4.
- the sealed film 56 connected to the coated cardboard of the annular disc 8 can be melted in the edge region and intimately connected to the annular disk.
- FIG. 7 further illustrates a label 58 which is releasably sealed to a distal surface 60 of the annular disc 8 and hermetically seals the outlet port 41 prior to the first metering.
- FIG. 8 shows a further alternative embodiment, wherein the annular disc 8 is shown only in sections.
- a retaining flange 62 of a holding mold part 64 On the inner surface of the annular surface 8 is a retaining flange 62 of a holding mold part 64 at.
- This retaining flange 62 is sealed with a plastic coating on the inner surface of the annular disc 8.
- the holding mold part 64 further has a holding cylinder 66, in which the valve shaped body 22 is held in the manner of an insert.
- a retaining collar 68 protrudes radially inwards and partially projects beyond the valve shaped body 22.
- a cylindrical contact surface for the valve body 22 of the holding cylinder 66 is surmounted by locking projections 70 which engage over the proximal end of the valve body 22, so that the valve body 22 is positively fixed axially between the locking projections 70 and the retaining collar 68.
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- Closures For Containers (AREA)
Description
Die vorliegende Erfindung betrifft eine Kartusche mit einem zylindrischen Gehäuse, das einen zwischen einem beweglich in dem zylindrischen Gehäuse gehaltenen und gegenüber der Innenwand des zylindrischen Gehäuses abgedichteten Kolben und einer mit einer Auslassöffnung versehenen Endkappe vorgesehenen Aufnahmeraum umschließt, wobei das zylindrische Gehäuse und die Endkappe aus innenseitig beschichteter Pappe gebildet sind und die Endkappe einen sich in axialer Richtung des zylindrischen Gehäuses erstreckenden Rand aufweist, der von einem nach innen eingeschlagenen Endabschnitt des zylindrischen Gehäuses umgeben ist.The present invention relates to a cartridge having a cylindrical housing which encloses a between a movably held in the cylindrical housing and sealed against the inner wall of the cylindrical housing piston and provided with an outlet end cap receiving space, wherein the cylindrical housing and the end cap from the inside coated cardboard are formed and the end cap has an extending in the axial direction of the cylindrical housing edge, which is surrounded by an inwardly turned end portion of the cylindrical housing.
Eine solche Kartusche ist aus
Aus
Aus
Aus
Aus
Der vorliegenden Erfindung liegt das Problem zugrunde, eine Kartusche der eingangs genannten Art für die Systemgastronomie zu verbessern.The present invention is based on the problem to improve a cartridge of the type mentioned for the catering industry.
Zur Lösung dieses Problems wird mit der vorliegenden Erfindung eine Kartusche mit den Merkmalen von Anspruch 1 vorgeschlagen. Diese zeichnet sich durch einen aus einem elastischen Kunststoff hergestellten Ventilformkörper mit zumindest einem Ventillappen, der in einer Ausgangsposition die Auslassöffnung dichtend verschließt, und einem Befestigungsflansch zur Anlage an die Endkappe, der an einer Innenwandung der Endkappe vorgesehen und mit der Endkappe versiegelt ist, aus. Der Ventilformkörper der erfindungsgemäßen Kartusche bildet die Auslassöffnung, d.h. die Öffnung für die Abgabe des Kolbeninhalts nach außen aus. Der bzw. die Ventillappen haben aufgrund der elastischen Eigenschaften des Kunststoffs die Neigung in ihre Ursprungsstellung zurückzuflexen, in welcher die Ventillappen die Auslassöffnung verschließen.To solve this problem, the present invention proposes a cartridge having the features of claim 1. This is characterized by a made of an elastic plastic valve body having at least one valve flap which seals the outlet opening in a starting position, and a mounting flange for abutment with the end cap, which is provided on an inner wall of the end cap and sealed with the end cap from. The valve body of the cartridge of the invention forms the outlet port, i. the opening for delivery of contents of the piston outwards. Due to the elastic properties of the plastic, the valve flap (s) tend to flex back into their original position, in which the valve flaps close the outlet opening.
Die erfindungsgemäße Kartusche ist vorzugsweise eine wie in
Das zylindrische Gehäuse der erfindungsgemäßen Kartusche ist dementsprechend vorzugsweise aus einem relativ kostengünstig herzustellenden Verpackungsmaterial hergestellt, beispielsweise aus einer dünnen gerollten und längs verbundenen, beispielsweise verschweißten Folie oder Pappe. Bei der Verwendung von Pappe zur Herstellung des zylindrischen Gehäuses ist diese üblicherweise innenseitig beschichtet, um einen direkten Kontakt des flüssigen Kartuscheninhalts mit der Pappe zu verhindern. Die Endkappe ist dabei üblicherweise stoffidentisch zu dem zylindrischen Gehäuse ausgebildet. Vorzugsweise ist das zylindrische Gehäuse zusammen mit der Endkappe als Einheit aus Pappe ausgebildet, die beidseitig beschichtet, insbesondere mit einem Kunststoff beschichtet ist. Die Endkappe hat dabei vorzugsweise einen sich in axialer Richtung des zylindrischen Gehäuses erstreckenden Rand, der von einem nach innen eingeschlagenen Endabschnitt des das zylindrische Gehäuse bildenden Pappmaterials umgeben ist. Der dreilagige Aufbau im Bereich der Endkappe gebildet durch das freie Ende des zylindrischen Gehäuses, den umbogenen Rand der Endkappe und den eingeschlagenen Endabschnitt des zylindrischen Gehäuses wird üblicherweise durch Umbördeln innig verbunden, so dass an diesem Übergang von der Endkappe zu dem zylindrischen Gehäuse ein einfacher aber effektiver Abschluss gebildet ist. Das Umbördeln kann rein mechanisch erfolgen. Alternativ oder ergänzend kann die Verbindung zumindest zwischen dem eingeschlagenen Abschnitt und dem ebenfalls mit Kunststoff beschichteten Rand der Endkappe durch Schweißen erfolgen, um eine sichere Versiegelung dieser Lagen zu erreichen.Accordingly, the cylindrical housing of the cartridge according to the invention is preferably made of a relatively inexpensive to produce packaging material, for example, a thin rolled and longitudinally connected, for example, welded foil or cardboard. When using paperboard to make the cylindrical housing, it is usually coated on the inside to prevent direct contact of the liquid cartridge contents with the paperboard. The end cap is usually formed material identical to the cylindrical housing. Preferably, the cylindrical housing is formed together with the end cap as a unit made of cardboard, which is coated on both sides, in particular coated with a plastic. The end cap preferably has an edge extending in the axial direction of the cylindrical housing, which is surrounded by an inwardly turned end section of the cardboard material forming the cylindrical housing. The three-layer structure in the end cap formed by the free end of the cylindrical housing, the arcuate edge of the end cap and the embraced end portion of the cylindrical housing is usually intimately connected by crimping, so that at this transition from the end cap to the cylindrical housing a simple but effective conclusion is formed. Flanging can be done purely mechanically. Alternatively or additionally, the connection can be made by welding at least between the embossed section and the likewise plastic coated edge of the end cap in order to achieve a secure sealing of these layers.
Der Ventilformkörper hat zumindest einen, vorzugsweise mehrere Ventillappen, die in einer Ausgangsposition die Auslassöffnung dichtend verschließen. Dabei will die vorliegende Erfindung insbesondere eine Kartusche als Aufbewahrungs- und Dosiermittel bereitstellen für Lebensmittel mit einer relativ niedrigen Viskosität. Die Füllmenge liegt vorzugsweise zwischen 0,5 und 3 Litern, bevorzugt zwischen 0,6 und 1.5 Litern, besonders bevorzugt zwischen 0,7 und 1 Liter, was ein Optimum zwischen einer hinreichend großen Verpackungseinheit für die Gastronomie bei angemessener Berücksichtigung hygienischer Anforderungen und einer lebensmitteltauglichen Aufbewahrung auch im Rahmen des Ausdosierens von Flüssigkeit aus der Kartusche darstellt. Vor dem erstmaligen Ausdosieren ist der Ventilformkörper üblicherweise von einem Etikett überdeckt, welches auf der Außenseite der Endkappe vorgesehen in der Regel lösbar aufgesiegelt ist und dementsprechend jeden Eintritt von Luft oder Verunreinigung an der Eintrittsseite jedenfalls vor dem ersten Ausdosieren von Kartuscheninhalt verhindert, so dass eine hygienisch einwandfreie Aufbewahrung des Kartuscheninhalts bei lang anhaltender Lagerung in der Kartusche gewährleistet ist.The valve shaped body has at least one, preferably a plurality of valve flaps, which seal the outlet opening in a starting position in a sealing manner. In particular, the present invention seeks to provide a cartridge as a storage and dosing agent for foods having a relatively low viscosity. The filling amount is preferably between 0.5 and 3 liters, preferably between 0.6 and 1.5 liters, more preferably between 0.7 and 1 liter, which is an optimum between a sufficiently large packaging unit for the catering industry with due consideration of hygienic requirements and a food grade Storage also in the context of dosing out of liquid from the cartridge represents. Before the first metering the valve body is usually covered by a label, which on provided the outside of the end cap is usually releasably sealed and accordingly prevents any entry of air or contamination on the inlet side in any case before the first metering of cartridge contents, so that a hygienic storage of the cartridge contents is ensured for long-term storage in the cartridge.
Die Rückstellkraft des bzw. der Ventillappen in die Ausgangsposition wird durch angemessene Ausformung des Ventilformkörpers und entsprechende Auswahl der Elastizität des elastischen Kunststoffs bewirkt. In der Ausgangsposition stößt der bzw. die Ventillappen üblicherweise gegen Begrenzungsflächen, die durch den Ventilformkörper, vorzugsweise durch andere Ventillappen gebildet sind. Hierdurch wird eine hohe Dichtigkeit gewährleistet. Die Dichtigkeit des erfindungsgemäßen Ventilformkörpers ist derart bemessen, dass auch Produkte mit einer Viskosität nach Bostwick von über 3 cm/30 sek. bei 20°C nach dem erstmaligen Dosieren aufbewahrt werden können, ohne dass der Kartuscheninhalt bei senkrecht stehender Kartusche aus der Auslassöffnung austropft. Diese Viskositätswerte verstehen sich bei Raumtemperatur (20°C). Dabei wird davon ausgegangen, dass das Produkt eine Dichte von zwischen 0,5 und 1,5, vorzugsweise von zwischen 0,9 und 1,1 kg/dm3 hat und die Flüssigkeitssäule bei senkrecht stehender Kartusche über der Auslassöffnung eine Höhe von zwischen 150 und 250 mm hat. Auch soll der Ventilformkörper derart ausgebildet sein, dass bei Produkten mit oben genannter Viskosität selbst bei Erschütterungen und starken Stößen nicht unbeabsichtigt durch die Auslassöffnung austreten. Ein entsprechendes Austreten von Produkt aus der Kartusche soll bedingt durch die stoffliche Beschaffenheit und Konstruktion des Ventilformkörpers auch verhindert werden, wenn die Kartusche mit der Auslassöffnung nach unten über mehrere Stunden nach einer erstmaligen Entnahme in einer Ruhelage verbleibt.The restoring force of the valve flap (s) into the starting position is brought about by adequate shaping of the valve shaped body and appropriate selection of the elasticity of the elastic plastic. In the starting position, the valve flap (s) usually abuts against boundary surfaces which are formed by the valve shaped body, preferably by other valve flaps. This ensures a high density. The tightness of the valve body according to the invention is such that also products with a viscosity of Bostwick of about 3 cm / 30 sec. can be stored at 20 ° C after the first dosing, without the cartridge contents dripping out of the outlet opening with a vertical cartridge. These viscosity values are to be understood at room temperature (20 ° C.). It is assumed that the product has a density of between 0.5 and 1.5, preferably of between 0.9 and 1.1 kg / dm 3 and the liquid column with a vertical cartridge over the outlet opening a height of between 150 and 250 mm. Also, the valve body should be designed such that in products with the above-mentioned viscosity does not escape unintentionally through the outlet even with shocks and strong shocks. A corresponding leakage of product from the cartridge is due to the material nature and construction of the valve body to be prevented even if the cartridge with the outlet opening remains down for several hours after a first removal in a rest position.
Der Ventilformkörper verhindert des Weiteren aufgrund seiner Ausgestaltung, dass flüssiger Inhalt der Kartusche bei einer Vorschubkraft an der Kartuschenpistole von üblicherweise unter 60 bis 80 N zu keiner Entleerung des Kartuscheninhalts führt. Diese Vorschubkraft ist berechnet für eine Kartusche mit einem Durchmesser von zwischen 70 und 90 mm, bevorzugt von 80 mm und wirkt von außen auf den Kolben.Further, due to its design, the valve body prevents liquid contents of the cartridge from draining the contents of the cartridge at a force of advancement on the caulking gun, typically below 60 to 80N. This feed force is calculated for a cartridge with a diameter of between 70 and 90 mm, preferably 80 mm and acts on the outside of the piston.
Der Ventilformkörper ist dabei vorzugsweise so ausgebildet, dass er sich zum Nachrüsten vorhandener Kartuschen eignet. So hat der Ventilformkörper vorzugsweise einen Befestigungsflansch, der üblicherweise an einer Innenwandung der Endkappe vorgesehen ist, zumindest aber an derjenigen Lage der Endkappe, die die strukturelle Integrität der Kappe ausmacht. Hierbei kann es sich um eine Lage aus Pappe oder dünner Kunststofffolie handeln. Der Befestigungsflansch ist üblicherweise Bestandteil des einheitlichen Ventilformkörpers und kann mit dem die Endkappe ausformenden Material versiegelt sein. Bei einer solchen Versiegelung kann der Befestigungsflansch auch zwischen benachbarten Lagen geklemmt sein, ohne dichten stoffschlüssigen Kontakt mit den Lagen zu haben. Die Lagen sind vielmehr miteinander unter Einschluss des Ventilformkörpers miteinander versiegelt. Eine solche Versiegelung kann beispielsweise zwischen der Kunststoffoberfläche der Endkappe an deren Innenseite ausgebildet sein, welche Kunststoffoberfläche entweder durch eine Kunststofffolie oder eine Kunststoffbeschichtung auf einer Papplage ausgeformt ist. Ebenso gut kann der Ventilformkörper mit seinem Befestigungsflansch lediglich aufgrund des Innendrucks gegen die Innenfläche der Endkappe angedrückt und damit die Endkappe dichtend mit dem Ventilformkörper verbunden sein.The valve body is preferably designed so that it is suitable for retrofitting existing cartridges. Thus, the valve body preferably has a mounting flange, which is usually provided on an inner wall of the end cap, but at least the position of the end cap that makes up the structural integrity of the cap. This may be a layer of cardboard or thin plastic film. The mounting flange is usually part of the unitary valve body and may be sealed with the material forming the end cap. In such a seal, the mounting flange may also be clamped between adjacent layers without having a tight cohesive contact with the layers. The layers are rather sealed together with the inclusion of the valve body. Such a seal may for example be formed between the plastic surface of the end cap on the inside thereof, which plastic surface is formed either by a plastic film or a plastic coating on a cardboard layer. Just as well, the valve body can be pressed with its mounting flange only due to the internal pressure against the inner surface of the end cap and thus the end cap be sealingly connected to the valve body.
Der erfindungsgemäße Ventilformkörper hat vorzugsweise einen Ventilkörperring, an dem der oder die Ventillappen befestigt sind und welcher eine Basis des Ventilformkörpers ausformt, die beim Flexen der Ventillappen von der Ausgangsposition in eine nach außen vorspringende Abgabeposition im Wesentlichen unverformt bleibt und die notwendigen Rückstellkräfte bereitstellt, damit die Ventillappen nach der Produktentnahme in die Ausgangsposition zurückflexen und die Auslassöffnung dichtend verschließen können. Der Ventilkörperring kann dabei auch durch einen radial innen liegenden Bereich des Befestigungsflansches ausgebildet sein.The valve body according to the invention preferably has a valve body ring to which the valve flap (s) are fastened and which forms a base of the valve body which remains substantially undeformed when the valve flap is flexed from the initial position to an outwardly projecting dispensing position and provides the necessary return forces to allow the valve body to flex After valve removal, flex valve lugs back to their original position and close the outlet opening in a sealed manner. The valve body ring can also be formed by a radially inner region of the mounting flange.
Sämtliche Funktionsbereiche des Ventilformkörpers sind vorzugsweise als Segmente eines einheitlichen Ventilformkörpers ausgeformt. In der vorliegenden Beschreibung wird lediglich auf einen einzigen Ventilformkörper als Teil der Kartusche abgestellt. Es versteht sich von selbst, dass mehrere solcher Ventilformkörper zur Verbesserung der Produktverteilung an einer einzigen Kartusche vorgesehen sein können.All functional areas of the valve body are preferably formed as segments of a uniform valve body. In the present description, only a single valve body is used as part of the cartridge. It goes without saying that a plurality of such valve bodies can be provided on a single cartridge to improve product distribution.
Der Ventilformkörper nach der vorliegenden Erfindung ist ein dreidimensionales Gebilde, welches auch eine konkrete Ausdehnung in axialer Richtung des zylindrischen Gehäuses hat. Insofern unterscheidet sich die vorliegende Erfindung auch von der aus der
Diese Polyesterfolie liegt in axialer Richtung inwärtig zu dem vorderen Ende der Endkappe, die durch die Außenfläche einer Polyethylenscheibe gebildet wird. So wird der geschlitzte Bereich der Polyesterfolie von einem nach vorne, d.h. distal vorspringenden und durch die darüber liegenden Schichten der Endkappe gebildeten Rand umgeben, an dem sich Verschmutzung einnisten kann und der einem hygienisch einwandfreien dauerhaften Betrieb der Kartusche zur Entnahme von Lebensmitteln entgegensteht.This polyester film lies in the axial direction inwardly toward the front end of the end cap, which is formed by the outer surface of a polyethylene disc. Thus, the slit portion of the polyester film is moved from one forward, i. Surrounded by the distal edge and formed by the overlying layers of the end cap edge on which contamination can nest and which precludes hygienic continuous operation of the cartridge to remove food.
Bei der erfindungsgemäßen Kartusche steht der Ventilformkörper nur geringfügig in axialer Richtung ab. Üblicherweise ist der Ventilformkörper so ausgebildet, dass das distale Ende des Ventilformkörpers axial geringfügig über oder höhengleich mit der distalen, d.h. freien Oberfläche der Endkappe ist. Geringfügig bedeutet hier insbesondere ein Vorspringen des Ventilformkörpers gegenüber der freien Oberfläche von nicht mehr als 2 mm, bevorzugt nicht mehr als 1 mm bzw. nicht mehr als 0,5 mm. Diese Ringscheibe ist regelmäßig dasjenige Teil der Endkappe, welches unmittelbar mit dem zylindrischen Gehäuse verbunden ist und dementsprechend die Dichtigkeit an dem distalen Ende zwischen dem zylindrischen Gehäuse und der Endkappe sicherstellt und den Ventilformkörper trägt. So wird regelmäßig der wenigstens eine Ventillappen innerhalb des Ventilkörperrings angeordnet. Der Ventillappen befindet sich bei dieser Ausgestaltung nicht an dem vorderen axialen Ende der Kartusche, sondern ist gegenüber diesem vorderen freien Ende axial nach innen zurück versetzt.In the cartridge according to the invention, the valve body is only slightly in the axial direction. Typically, the valve body is formed so that the distal end of the valve body axially slightly above or equal in height with the distal, i. free surface of the end cap is. Slightly means here in particular a projection of the valve body with respect to the free surface of not more than 2 mm, preferably not more than 1 mm or not more than 0.5 mm. This washer is regularly that part of the end cap which is directly connected to the cylindrical housing and accordingly ensures the tightness at the distal end between the cylindrical housing and the end cap and carries the valve body. Thus, the at least one valve flap is regularly arranged inside the valve body ring. The valve flap is in this embodiment not at the front axial end of the cartridge, but is offset from the front free end axially inwardly back.
Mit Blick auf eine gute Restentleerung wird gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung vorgeschlagen, dass zwischen dem Ventillappen und dem Ventilkörperring ein Ringabschnitt vorgesehen ist, dessen Wandstärke geringer als die Wandstärke des Ventilkörperringes und/oder des Ventillappens ist. Dieser Ringabschnitt erlaubt ein Vorflexen des oder der Ventillappen bei der Entnahme von Lebensmittel aus der Kartusche aufgrund eines erhöhten Innendrucks. Der Ringabschnitt dient dabei als eine Art Gelenk, um den sich der bzw. die Ventillappen nach außen vorstülpen und schließlich in dieser vorgestülpten Position nach außen flexen, um aus zu förderndes Produkt durch die Auslassöffnung herauszulassen.With a view to a good emptying is proposed according to a preferred embodiment of the present invention that between the valve flap and the valve body ring, a ring portion is provided, the wall thickness is less than the wall thickness of the valve body ring and / or the valve flap. This ring section allows prefiltering of the valve flap (s) during removal of food from the cartridge due to increased internal pressure. The ring section serves as a kind of joint around which the valve flap (s) project outwards and finally flex outwards in this projected position in order to let out product to be conveyed through the outlet opening.
Das Vorstülpen des bzw. der Ventillappen in die vorgestülpte Position wird durch eine Weiterbildung der vorliegenden Erfindung verbessert, bei welcher ein radial innen an dem Ringabschnitt angeschlossener Zylinderabschnitt vorgesehen ist, dessen in den Ventilkörperring hineinragendes proximales Ende mit dem und den Ventillappen verbunden ist.The protuberance of the valve flap (s) into the protruding position is improved by a development of the present invention, in which a cylinder section connected radially inward to the ring section is provided, whose proximal end projecting into the valve body ring is connected to the valve flap and flaps.
Der Zylinderabschnitt muss dabei nicht zwingend streng zylindrisch ausgebildet sein. Er kann vielmehr auch leicht radial leicht konisch zulaufen. Der Zylinderabschnitt hat aber eine überwiegend axiale Erstreckung und verbindet dementsprechend den sich überwiegend in radialer Richtung erstreckenden Ringabschnitt mit dem oder den sich ebenfalls in radialer Richtung erstreckenden Ventillappen. Der Ringabschnitt zusammen mit dem Zylinderabschnitt erlauben ein Umstülpen des innerhalb des Ventilkörperrings befindlichen Bereichs. Durch den Ringabschnitt und den Zylinderabschnitt können verschiedene Schwenkpunkte gebildet werden, um welche der bzw. die Ventillappen leicht nach vorne flexen können.The cylinder portion does not necessarily have to be strictly cylindrical. Rather, it can easily slightly taper slightly radially. However, the cylinder section has a predominantly axial extension and accordingly connects the annular section, which extends predominantly in the radial direction, with the valve flap or likewise extending in the radial direction. The ring portion together with the cylinder portion allow everting of the area located within the valve body ring. Through the ring portion and the cylinder portion, different pivot points can be formed around which the valve flap (s) can easily flex forward.
Dabei sind vorzugsweise in Umfangsrichtung mehrere Ventillappen verteilt vorgesehen, die einen sich radial nach innen verjüngenden Querschnitt haben. Diese Ausgestaltung verhindert ein unerwünschtes Öffnen der Ventillappen beim Vorstülpen der Ventillappen. Die Ventillappen haben üblicherweise eine Wandstärke zumindest an ihrem radial äußeren, mit dem Zylinderabschnitt und/oder dem Ringabschnitt verbundenen Ende, welche größer ist als die Wandstärke von Ringabschnitt bzw. Zylinderabschnitt. So bilden die Ventillappen einen im Verhältnis zu den radial äußeren und bis zu dem Ventilkörperring reichenden Bereichen des Ventils eine verhältnismäßig formsteife Dichtscheibe, die erst nach dem Vorstülpen und infolge des erhöhten Innendrucks durch Vorflexen der Ventillappen die Auslassöffnung freigeben.In this case, a plurality of valve flaps are preferably distributed in the circumferential direction, which have a radially inwardly tapering cross-section. This embodiment prevents unwanted opening of the valve flaps when pre-slipping the valve flaps. The valve flaps usually have a wall thickness at least at their radially outer end connected to the cylinder section and / or the ring section, which is greater than the wall thickness of the ring section or cylinder section. Thus, the valve lugs form a relative to the radially outer and reaching to the valve body ring areas of the valve a relatively dimensionally rigid sealing disc, the release only after Vorstülpen and due to the increased internal pressure by prefilming the valve lobes.
Mit Blick auf eine kompakte Ausgestaltung des Ventils wird gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung vorgeschlagen, dass der Zylinderabschnitt und die Ventillappen eine axiale Erstreckung von zwischen 3 und 8 mm haben und dass nicht mehr als ein Viertel dieser axialen Erstreckung den Ventilformkörper überragt. Dabei wird üblicherweise davon ausgegangen, dass der Ringabschnitt ausgehend von dem Ventilkörperring axial nach vorne vorspringt und an dem Übergang zwischen dem Ringabschnitt und dem Zylinderabschnitt die Ausgestaltung des Ventilformkörpers proximal verläuft. Der radial innere Bereich des Ringabschnittes bildet dementsprechend in der Ausgangsposition den axial am weitesten von der Kartusche vorspringenden Teil des Ventils. Von diesem vorspringenden Teil wird die gesamte axiale Erstreckung von Zylinderabschnitt und Ventillappen gemäß der hier diskutierten Weiterbildung üblicherweise bemessen. Die Ventillappen befinden sich vorzugsweise innerhalb des Ventilkörperrings, vorzugsweise in etwa auf mittlerer axialer Höhe. Alternativ können die Ventillappen auch den Ventilkörperring proximal überragen.With a view to a compact design of the valve is proposed according to a preferred embodiment of the present invention that the cylinder portion and the valve flaps have an axial extent of between 3 and 8 mm and that not more than a quarter of this axial extent projects beyond the valve body. In this case, it is usually assumed that the ring section protrudes axially forward from the valve body ring and that the configuration of the valve body proceeds proximally at the transition between the ring section and the cylinder section. The radially inner portion of the ring portion accordingly forms in the initial position the axially furthest from the cartridge part of the valve. From this projecting part, the entire axial extension of cylinder section and valve flaps is usually measured according to the development discussed here. The valve lobes are preferably located within the valve body ring, preferably in at about the middle axial height. Alternatively, the valve flaps may also protrude proximally over the valve body ring.
Im Hinblick auf eine gute Befestigung des Ventilformkörpers an der Kartusche wird gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung vorgeschlagen, dass zwischen dem Ventilkörperring und dem Befestigungsflansch ein nach innen zurückspringender Versatz ausgeformt ist. Dieser Versatz ist üblicherweise in Form einer umlaufenden Ringnut ausgeformt und kann dementsprechend beispielsweise das die Endkappe ausformende Material aufnehmen. Dieses ist vorzugsweise in die Ringnut eingepasst.In view of a good attachment of the valve body to the cartridge is proposed according to a preferred embodiment of the present invention that between the valve body ring and the mounting flange an inwardly recessed offset is formed. This offset is usually formed in the form of a circumferential annular groove and can accordingly accommodate, for example, the material forming the end cap. This is preferably fitted in the annular groove.
Als Endkappe wird regelmäßig ein fest mit dem zylindrischen Gehäuse verbundener Boden vorgesehen, der in der zuvor beschriebenen Weise durch Umbördeln und gegebenenfalls Verschweißen mit dem zylindrischen Gehäuse verbunden ist. Ebenso gut kann der Ventilformkörper aber an einer Vorsatzscheibe vorgesehen sein, die lediglich gegen die Endkappe dichtend angelegt und wiederverwendet werden kann, wenn die Kartusche entleert ist. Die Vorsatzscheibe wird dabei zwischen der Kartusche und eine endseitige und durch die Kartuschenpistole gebildete Haltefläche eingelegt. Dementsprechend wird beim Ausdosieren von Lebensmittel aus der Kartusche die Kartusche mit ihrer Endkappe gegen die Vorsatzscheibe gedrückt. Der Befestigungsflansch des Ventilformkörpers legt sich dabei dichtend gegen die Endkappe an und umgibt die durch die Endkappe ausgebildete Auslassöffnung, so dass Material durch diese Auslassöffnung und durch die Vorsatzscheibe hindurch zu dem Ventilformkörper gelangen und dort in der zuvor beschrieben Weise ausgefördert werden kann.As an end cap, a fixedly connected to the cylindrical housing bottom is regularly provided, which is connected in the manner described above by crimping and optionally welding to the cylindrical housing. Just as well, however, the valve body can be provided on an attachment disc, which can only be applied sealingly against the end cap and reused when the cartridge is emptied. The attachment disc is inserted between the cartridge and an end-side and formed by the cartridge gun holding surface. Accordingly, when dosing out food from the cartridge, the cartridge is pressed with its end cap against the attachment disc. The mounting flange of the valve body settles sealingly against the end cap and surrounds the outlet opening formed by the end cap, so that material can pass through this outlet opening and through the attachment disc to the valve body and can be discharged there in the manner described above.
Der Befestigungsflansch des Ventilformkörpers ist sonach entweder dichtend an die Innenfläche der Endkappe oder zwischen einer Außenfläche der Endkappe und der Vorsatzscheibe anlegbar. Mit Blick auf eine möglichst gute Abdichtung wird als elastischer Kunststoff zur Ausbildung des Ventilformkörpers vorzugsweise Silikon gewählt.The mounting flange of the valve body is therefore either sealingly applied to the inner surface of the end cap or between an outer surface of the end cap and the attachment disc. With a view to the best possible sealing silicone is preferably selected as the elastic plastic for the formation of the valve body.
Bei einer weiteren bevorzugten Ausgestaltung der vorliegenden Erfindung hat die Endkappe oder die Vorsatzscheibe eine Folie, die eine mittlere Ausnehmung zum Ausdosieren des Lebensmittels vorgibt. Die Folie ist randnah zu der Ausnehmung perforiert. Dementsprechend wird die Ausnehmung üblicherweise in Umfangsrichtung durch eine oder mehrere Reihen von Löchern umgeben. Der Ventilformkörper ist durch Umspritzen mit der Folie verbunden. Beim Umspritzen durchfließt das den Ventilformkörper ausbildende elastische Kunststoffmaterial die Perforation, so dass es zu einer dauerhaften und dichten Verbindung zwischen dem Ventilformkörper und der Folie kommt. Der besagte Befestigungsflansch kann dabei allein durch das Material der Umspritzung innerhalb der Perforation gebildet sein. Üblicherweise ergibt sich indes auf beiden Seiten der Folie eine Anlagerung von elastischem Kunststoff und damit eine formschlüssige Befestigung des Befestigungsflansches.In a further preferred embodiment of the present invention, the end cap or the attachment disc has a film which defines a central recess for metering out the food. The film is perforated close to the edge of the recess. Accordingly, the recess is usually circumferentially surrounded by one or more rows of holes. The valve body is connected by molding with the film. When encapsulating flows through the valve body forming elastic Plastic material the perforation, so that there is a permanent and tight connection between the valve body and the film. The said mounting flange can be formed solely by the material of the encapsulation within the perforation. Usually, however, results on both sides of the film an accumulation of elastic plastic and thus a positive attachment of the mounting flange.
Der Ventilformkörper ist vorzugsweise mit der Ringscheibe der Endkappe durch Heißsiegeln verbunden. Dabei kann der Befestigungsflansch des Ventilformkörpers zwischen der Ringscheibe und einer mit der Innenfläche der Ringscheibe verbundenen Siegelfolie angeordnet sein. Diese Siegelfolie wird zumindest mit der Ringscheibe versiegelt unter Einschluss des Befestigungsflansches. Die Siegelfolie kann ferner optional mit der Innenfläche des Befestigungsflansches verbunden, beispielsweise verklebt oder verschweißt sein.The valve body is preferably heat sealed to the washer of the end cap. In this case, the fastening flange of the valve molding may be arranged between the annular disk and a sealing film connected to the inner surface of the annular disk. This sealing film is sealed at least with the washer, including the mounting flange. The sealing film may also be optionally connected to the inner surface of the mounting flange, for example glued or welded.
Bei einer alternativen Ausgestaltung ist der Ventilformkörper als Einsatz innerhalb eines Halteformteils angeordnet. Dieses Halteformteil hat einen gegen die Innenfläche der Ringscheibe anliegenden und damit versiegelten Halteflansch und einen distal an dem Ventilformkörper anliegenden Haltekragen. Bei einem den Kartuscheninhalt ausfördernden Innendruck wird der Ventilformkörper gegen diesen Haltekragen dichtend angelegt. Des Weiteren ergibt sich aufgrund der elastischen Eigenschaften des Ventilformkörpers eine hinreichende Abdichtung sowohl gegenüber dem Haltekragen als auch gegenüber einer umfänglichen Phasengrenze, die regelmäßig durch den Ventilkörperring des Ventilformkörpers einerseits und eine Innenumfangsfläche des Halteformteils gebildet wird. Diese Phasengrenze erstreckt sich üblicherweise in axialer Richtung des zylindrischen Gehäuses.In an alternative embodiment, the valve body is arranged as an insert within a holding mold part. This retaining molding has a bearing against the inner surface of the annular disc and thus sealed retaining flange and a distal fitting to the valve body retaining collar. In an internal pressure which delivers the contents of the cartridge, the valve body is sealingly applied against this retaining collar. Furthermore, owing to the elastic properties of the valve shaped body, sufficient sealing occurs both with respect to the retaining collar and with respect to a peripheral phase boundary which is regularly formed by the valve body ring of the valve molding on the one hand and an inner circumferential surface of the retaining molding. This phase boundary usually extends in the axial direction of the cylindrical housing.
Mit der vorliegenden Erfindung wird ferner eine Vorsatzscheibe der oben erwähnten Art für sich beansprucht. Diese Vorsatzscheibe hat einen Ventilformkörper nach einem der Ansprüche 1 bis 14.The present invention further claims an attachment disk of the type mentioned above. This attachment disc has a valve body according to one of claims 1 to 14.
Weitere Einzelheiten und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels in Verbindung mit der Zeichnung. In dieser zeigen:
- Figur 1
- eine Draufsicht auf das ausgabeseitige Ende eines Ausführungsbeispiels einer Kartusche vor dem Aufsetzen einer Vorsatzscheibe;
Figur 2- das Ausführungsbeispiel nach
Figur 1 nach dem Aufsetzen der Vorsatzscheibe; - Figur 3a
- eine Längsschnittansicht des Ventilformkörpers in einer Ausgangsposition;
- Figur 3b
- der in
Figur 3a gezeigte Ventilformkörper in einer vorgestülpten Position; - Figur 4
- eine Längsschnittansicht zur Verdeutlichung einer ersten Variante zur Befestigung des Ventilformkörpers nach
Figur 3 ; - Figur 5
- eine Längsschnittansicht zur Verdeutlichung einer zweiten Variante zur Befestigung des Ventilformkörpers nach
Figur 3 ; Figur 6- eine Längsschnittansicht zur Verdeutlichung einer dritten Variante zur Befestigung des Ventilformkörpers nach
Figur 3 ; - Figur 7
- eine Längsschnittansicht eines alternativen Ausführungsbeispiels des Ventilformkörpers; und
Figur 8- eine Längsschnittansicht eines weiteren Ausführungsbeispiels eines Ventilformkörpers mit einem Halteformteil zur Halterung desselben.
- FIG. 1
- a plan view of the output side end of an embodiment of a cartridge before placing an attachment disc;
- FIG. 2
- the embodiment according to
FIG. 1 after placing the attachment disc; - FIG. 3a
- a longitudinal sectional view of the valve body in a starting position;
- FIG. 3b
- the in
FIG. 3a shown valve bodies in a prepositioned position; - FIG. 4
- a longitudinal sectional view to illustrate a first variant for attachment of the valve body after
FIG. 3 ; - FIG. 5
- a longitudinal sectional view to illustrate a second variant for fixing the valve body after
FIG. 3 ; - FIG. 6
- a longitudinal sectional view to illustrate a third variant for attachment of the valve body after
FIG. 3 ; - FIG. 7
- a longitudinal sectional view of an alternative embodiment of the valve body; and
- FIG. 8
- a longitudinal sectional view of another embodiment of a valve body with a holding mold part for holding the same.
Die
In den
Dieser Ventilformkörper 22 weist einen Befestigungsflansch 24, der das proximale Ende des Ventilformkörpers 22 bildet und einen mit Bezugszeichen 26 gekennzeichneten Ventilkörperring trägt, der über eine Ringnut 28 gegenüber einer Außenfläche 30 des Befestigungsflansches 24 beabstandet ist.This
Durch den in radialer Richtung verhältnismäßig dicken Ventilkörperring 26 ist der Ventilformkörper 22 versteift. Die Wandstärke des Ventilkörperrings 26 ist in etwa doppelt so groß wie die radiale Wandstärke auf Höhe der Ringnut 28. Eine durchgehend glatte Innenumfangsfläche 32 erstreckt sich von dem Befestigungsflansch 24 bis zu dem distalen Ende des Ventilkörperrings 26. Dieser wird überragt von einem Ringabschnitt 34, dessen Innenumfangsfläche durch die Innenumfangsfläche 32 des Ventilformkörpers 22 zunächst geradlinig fortgesetzt wird. Der Ringabschnitt 34 erstreckt sich ausgehend von dem Ventilkörperring 26 leicht konisch und radial nach innen. Das in distaler Richtung vorderste Ende des Ventilformkörpers 22 wird durch einen Übergangsbereich zwischen dem Ringabschnitt 34 und einem mit Bezugszeichen 36 gekennzeichneten Zylinderabschnitt gebildet. Der Zylinderabschnitt 36 und der Ringabschnitt 34 sind in etwa mit gleicher Wandstärke ausgeformt. Der Zylinderabschnitt 36 erstreckt sich im Wesentlichen in axialer Richtung und trägt an seinem proximalen Ende mehrere Ventillappen 38, die in Umfangsrichtung beabstandet zueinander vorgesehen sind und über einen mittigen Kreuzschlitz, jeweils voneinander getrennt sind und im Wesentlichen dichtend aneinander anliegen, wenn der Ventilformkörper 22 die in
Der Ventilkörperring 26 und die Ventillappen 38 haben eine axiale Erstreckung, die vorliegend lediglich zu einem Fünftel die vordere Stirnseite des Ventilkörperrings 26 überragt, über die axiale Restlänge indes in dem Ventilkörperring 26 aufgenommen ist. So hat das Ventil jedenfalls in der Ausgangsposition eine geringe axiale Erstreckung, die sich im Wesentlichen auf die Erstreckung des Ventilkörperrings 26 über das Material der Vorsatzscheibe 18 bzw. der Endkappe 4 zuzüglich der axialen Erstreckung des Ringabschnitts 34 beschränkt.The
Der relativ dünne Querschnitt des Zylinderabschnitts 36 ist vornehmlich am Übergangbereich zu dem Ringabschnitt 34 verwirklicht. Bei fortschreitender Ausdehnung in axialer Richtung verdickt sich der Zylinderabschnitt 36 und geht an der Außenfläche über eine konkave Krümmung in die Außenfläche der Ventillappen 38 über. Im Bereich des kleinsten Radius wird zwischen dem Zylinderabschnitt 36 und dem Ventillappen 38 ein verdickter Eckbereich 40 ausgeformt. Von diesem Eckbereich 40 nimmt die Wandstärke der Ventillappen 38 in radialer Richtung ab. Der zuvor erwähnte Kreuzschlitz befindet sich lediglich auf den sich im Wesentlichen in radialer Richtung erstreckenden Abschnitten der Ventillappen 38, d.h. endet radial vor dem Eckbereich 40 und formt eine Auslassöffnung 41 aus.The relatively thin cross-section of the
Die in den
Dabei ist die Kartuschenpistole üblicherweise so ausgebildet, dass im Anschluss an den Vortrieb des Förderstößels und aufgrund des leichten Innendrucks sowie wegen der Haftung des Kolbens an der Wandung des zylindrischen Gehäuses 3 der Kartusche 2, die Flüssigkeit in die Kartusche 2 zurückgezogen wird. Im Rahmen dieser Bewegung wird der Ventilformkörper 22 von der in
Die
Soweit
Die
Der Ventilformkörper 22 ist durch Umspritzen des Randbereichs der Folie 12 gebildet. Bei diesem Umspritzen durchströmt das den Ventilformkörper 22 ausbildende Kunststoffmaterial die Perforation 44 und verbindet dementsprechend den Ventilformkörper 22 form- und stoffschlüssig mit dem Folienmaterial 12.The
Die
Die unter Bezugnahme auf die
Die erfindungsgemäße Lösung bietet den Vorteil, dass auch niedrigviskose Flüssigkeiten, die als Lebensmittel in einer Kartusche 2 der eingangs genannten Art aufgenommen sind, selbst bei einer Anordnung der Kartusche 2 mit der Endkappe 4 nach unten dauerhaft in der Kartusche 2 verbleiben können und nicht durch die Auslassöffnung 41 heraustropfen. Durch das Vorstülpen des Ventilformkörpers 22 bei der Produktentnahme und die spezielle Konfiguration des Ventilformkörpers 22 kann eine nahezu vollständige Restentleerung gewährleistet werden. Darüber hinaus lässt sich der Ventilformkörper 22 leicht pflegen, da dieser - wie beispielsweise aus
Durch die erfindungsgemäße Neuerung wird somit der Gebrauchswert der Kartusche 2 gesteigert.The inventive value of the utility value of the
Wie ersichtlich ist das die Ringscheibe 8 bildende Material radial außen zu einem sich in radialer Richtung erstreckenden Rand 52 umbogen. Dieser Rand 52 liegt zwischen einem distalen Ende des zylindrischen Gehäuses und einem mit Bezugszeichen 54 gekennzeichneten eingeschlagenen Endabschnitt des bahnenförmigen Materials, welches das zylindrische Gehäuse 3 ausformt. Hierbei kann es sich um Kunststofffolie oder Pappe handeln. Eine Pappe ist üblicherweise innen mit einem Kunststoff, beispielsweise Polyethylen beschichtet.As can be seen, the material forming the
Gegen die Innenfläche der Ringscheibe 8 ist der Befestigungsflansch 24 angelegt. Auf der der Ringscheibe 8 gegenüberliegenden Seite liegt eine Siegelfolie 56 an dem Befestigungsflansch 24 an, die mit der Innenfläche der Ringscheibe 8 radial außerhalb des Befestigungsflansches 24 versiegelt ist. Die Siegelfolie 56 kann mit der Innenfläche des Befestigungsflansches 24 verbunden, beispielsweise verklebt sein. Im Randbereich mag die Siegelfolie 56 mit dem Rand 52 der Ringscheibe 8 axial umbogen und dementsprechend von dem das zylindrische Gehäuse 3 ausformenden Material umschlungen sein. Dieser randseitige Aufbau wird umbördelt, um das zylindrische Gehäuse 3 fluiddicht mit der Ringscheibe 8 und damit den Boden 4 zu verbinden. Durch Schweißen kann die mit der beschichteten Pappe der Ringscheibe 8 verbundene Siegelfolie 56 im Randbereich aufgeschmolzen und mit der Ringscheibe innig verbunden sein.Against the inner surface of the
Die
An dem axial gegenüberliegenden Ende ist eine zylindrische Anlagefläche für den Ventilformkörper 22 des Haltezylinders 66 von Rastvorsprüngen 70 überragt, die das proximale Ende des Ventilformkörpers 22 übergreifen, so dass der Ventilformkörper 22 formschlüssig zwischen den Rastvorsprüngen 70 und dem Haltekragen 68 axial fixiert ist.At the axially opposite end a cylindrical contact surface for the
- 22
- Kartuschecartridge
- 33
- zylindrisches Gehäusecylindrical housing
- 44
- Boden/EndkappeFloor / cap
- 66
- Randedge
- 88th
- Kartonringcarton ring
- 1010
- Ausnehmungrecess
- 1212
- Foliefoil
- 1414
- KreuzschlitzPhillips
- 1616
- Auslassoutlet
- 1818
- Vorsatzscheibefront cover lens
- 2020
- Bohrungdrilling
- 2222
- VentilformkörperValve moldings
- 2424
- Befestigungsflanschmounting flange
- 2626
- VentilkörperringValve body ring
- 2828
- Ringnutring groove
- 3030
- Außenflächeouter surface
- 3232
- InnenumfangsflächeInner circumferential surface
- 3434
- Ringabschnittring section
- 3636
- Zylinderabschnittcylinder section
- 3838
- Ventillappenvalve flap
- 4040
- Eckbereichcorner
- 4141
- Auslassöffnungoutlet
- 4242
- Ausnehmungrecess
- 4444
- Perforationperforation
- 4646
- Oberfolietop film
- 4848
- Unterfolielower film
- 5050
-
distale Oberfläche des Ventilformkörpers 22distal surface of the
valve body 22 - 5252
- Randedge
- 5454
- eingeschlagener Endabschnitthammered end section
- 5656
- Siegelfoliesealing film
- 5858
- Etikettlabel
- 6060
-
distale Oberfläche der Ringscheibe/Kartonring 8distal surface of the annular disc /
cardboard ring 8 - 6262
- Halteflanschretaining flange
- 6464
- HalteformteilHolding mold part
- 6666
- Haltezylinderholding cylinder
- 6868
- Haltekragenretaining collar
- 7070
- Rastvorsprungcatch projection
Claims (14)
- A cartridge (2) having a cylindrical housing (3), which encloses a receiving space provided between a piston held movably in the cylindrical housing (3) and sealed relative to the internal wall of the cylindrical housing (3) and an end cap (4) provided with an outlet opening (41),
the cylindrical housing (3) and the end cap (4) being formed of a paperboard coated on the inside and
the end cap (4) comprising a rim (52) which extends in the axial direction of the cylindrical housing (3) and is surrounded by an inwardly folded end portion (54) of the cylindrical housing (3), characterised by a valve moulding (22) made from a resilient plastics material with at least one valve tab (38), which in an initial position sealingly closes the outlet opening (41), and with a fastening flange (24) for resting against the end cap (4), which flange is provided on an internal wall of the end cap (4) and is sealed with the end cap. - A cartridge (2) according to claim 1, characterised by a label (58) outwardly covering the valve moulding (22).
- A cartridge (2) according to claim 1 or claim 2, characterised in that the valve moulding (22) comprises a valve body ring (26), which circumferentially surrounds the valve tab (38).
- A cartridge (2) according to one of the preceding claims, characterised in that a distal end of the valve moulding (22) projects only slightly in the axial direction beyond a distal surface of an annular disc (8) connected to the cylindrical housing (3).
- A cartridge (2) according to claim 3, characterised in that the valve tab (38) is arranged within the valve body ring (26).
- A cartridge (2) according to one of claims 3 and 5, characterised in that between the valve tab (38) and the valve body ring (26) an annular portion is provided, the wall thickness of which is smaller than the wall thickness of the valve body ring (26) and/or of the valve tab (38).
- A cartridge (2) according to claim 6, characterised by a cylindrical portion (36) connected to the radially inner side of the annular portion (34), the proximal end of which cylindrical portion (36) projecting into the valve body ring (26) is connected to the valve tab (38).
- A cartridge (2) according to one of the preceding claims, characterised by a plurality of valve tabs (38) distributed in the circumferential direction and having a cross-section which tapers radially inwards.
- A cartridge (2) according to one of claims 3 and 5 to 7, characterised in that the cylindrical portion (36) and the valve tabs (38) extend axially by between 3 and 8 mm and in that no more than a quarter of this axial extent projects beyond the valve body ring (26).
- A cartridge (2) according to one of claims 4' to 9, characterised in that the valve moulding (22) is connected with the annular disc (8) of the end cap (4).
- A cartridge (2) according to one of the preceding claims, characterised in that the fastening flange (24) of the valve moulding (22) is arranged between the annular disc (8) and a sealing film (56) connected with the inner surface of the annular disc (8).
- A cartridge (2) according to one of claims 1 to 10, characterised in that the valve moulding (22) is arranged as an insert inside a moulded retaining part (64), which insert has a retaining flange (62) resting against the inner surface of the annular disc (8) and forming a seal therewith and a retaining collar (68) resting distally against the valve moulding (22).
- A cartridge (2) according to one of the preceding claims, characterised in that the end cap (4) or a cover disc (18) comprises a film (12) which has a central opening (42), in that the film (12) is perforated close to the edge of the opening (42) and in that the valve moulding (22) is connected with the film (12) through encapsulation by injection moulding.
- A cartridge (2) according to one of the preceding claims, characterised by a cover disc (18) comprising the valve moulding (22), which cover disc (18) may be placed against the end cap (4).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12008384.5A EP2743200B1 (en) | 2012-12-17 | 2012-12-17 | Cartridge |
PL12008384T PL2743200T3 (en) | 2012-12-17 | 2012-12-17 | Cartridge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12008384.5A EP2743200B1 (en) | 2012-12-17 | 2012-12-17 | Cartridge |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2743200A1 EP2743200A1 (en) | 2014-06-18 |
EP2743200B1 true EP2743200B1 (en) | 2016-12-07 |
Family
ID=47561025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12008384.5A Not-in-force EP2743200B1 (en) | 2012-12-17 | 2012-12-17 | Cartridge |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2743200B1 (en) |
PL (1) | PL2743200T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3632817A1 (en) * | 2018-10-02 | 2020-04-08 | Sulzer Mixpac AG | Cartridge, method of making a cartridge and method of using a cartridge |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090039112A1 (en) * | 2007-08-09 | 2009-02-12 | Robertson Ronald D | Dispenser for viscous condiments |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4356935A (en) * | 1979-04-18 | 1982-11-02 | Kardon Industries, Inc. | Method and apparatus for storing and dispensing fluid foodstuff |
US4269330A (en) * | 1979-10-11 | 1981-05-26 | Johnson Terry J | Cartridge type sauce extruder |
US4830231A (en) | 1987-12-07 | 1989-05-16 | Sealright Co., Inc. | Composite disk valve for dispensing cartridges |
US4934570A (en) * | 1988-07-22 | 1990-06-19 | Kardon Industries, Inc. | Container closure with breakaway plunger and diffusing container incorporating the same |
DE4440211C1 (en) * | 1994-11-10 | 1996-02-22 | Dental Kosmetik Gmbh Dresden | Pressure=operated dispensing cap from vessel |
DE19613130A1 (en) * | 1995-09-05 | 1997-03-06 | Design Udo Suffa Gmbh S | Self-closing closure and membrane |
DE10006288A1 (en) | 2000-02-14 | 2001-08-16 | Vg Nicolaus Gmbh | Cylindrical packaging for pasty filling goods |
US6530504B2 (en) * | 2001-03-02 | 2003-03-11 | Seaquist Closures Foreign, Inc. | Multiple orifice valve |
US20060048841A1 (en) * | 2002-07-26 | 2006-03-09 | Gfi Innovations, Llc | Methodology and apparatus for storing and dispensing liquid components to create custom formulations |
US20060043121A1 (en) * | 2003-05-29 | 2006-03-02 | Belanger Richard A | Hot melt dispenser with silicone valve |
BRPI0402934A (en) * | 2004-07-08 | 2006-02-21 | Sonoco For Plas S A | dispenser type closure closure improvement |
ES2538087T3 (en) * | 2010-07-27 | 2015-06-17 | Neomed, Inc. | Containment and fluid supply system |
-
2012
- 2012-12-17 PL PL12008384T patent/PL2743200T3/en unknown
- 2012-12-17 EP EP12008384.5A patent/EP2743200B1/en not_active Not-in-force
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090039112A1 (en) * | 2007-08-09 | 2009-02-12 | Robertson Ronald D | Dispenser for viscous condiments |
Also Published As
Publication number | Publication date |
---|---|
PL2743200T3 (en) | 2017-06-30 |
EP2743200A1 (en) | 2014-06-18 |
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