EP4190715A1 - Cartouche pour un dispositif d'extrusion - Google Patents

Cartouche pour un dispositif d'extrusion Download PDF

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Publication number
EP4190715A1
EP4190715A1 EP21211969.7A EP21211969A EP4190715A1 EP 4190715 A1 EP4190715 A1 EP 4190715A1 EP 21211969 A EP21211969 A EP 21211969A EP 4190715 A1 EP4190715 A1 EP 4190715A1
Authority
EP
European Patent Office
Prior art keywords
film bag
cartridge according
head part
film
area
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.)
Withdrawn
Application number
EP21211969.7A
Other languages
German (de)
English (en)
Inventor
Nicolas Ulrich
Ralf Willner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP21211969.7A priority Critical patent/EP4190715A1/fr
Publication of EP4190715A1 publication Critical patent/EP4190715A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B05C17/00553—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 with means allowing the stock of material to consist of at least two different components
    • 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
    • B05C17/00583—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 the container for the material to be dispensed being deformable
    • 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
    • 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
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • B65D83/0072—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents the contents of a flexible bag being expelled by a piston or a movable bottom or partition provided in the container or the package

Definitions

  • the present invention relates to a cartridge for a squeezing device according to the type described in more detail in the preamble of patent claim 1.
  • Cartridges are mainly used for storing material such as glue, sealant, mortar, paint or lubricants.
  • the material can be easily applied to an object via the cartridges, provided the cartridge is inserted into an appropriate squeezing device.
  • the material can be applied precisely using the squeezing device. For example, a rod of the squeezing device presses against a bottom of the cartridge, as a result of which the volume of the cartridge is compressed, so that the material in the cartridge is pressed out of an opening.
  • An attachment can be attached to the cartridge in order to be able to apply the material to the object in a controlled and precise manner.
  • the foil base can deform during a squeezing process.
  • Such a deformation of the film base can result in an undesirably large volume of the mass located in the cartridge not being able to be pressed out of the film bag. It can lead, for example, to the fact that, after complete squeezing, about 8% to 10% of the mass that was in the foil bag before a squeezing process remains in the foil bag. This residual amount is not available for recycling and must be disposed of. This is disadvantageous from both an economic and an environmental point of view.
  • a cartridge for a squeezing device with a head part and at least one elongated film bag which has a chamber for receiving a mass, the film bag being operatively connected to the head part, having a lateral wall area and a lower area forming a base.
  • a reinforcement element is provided which is connected to the lower area of the film bag.
  • the solution according to the invention has the advantage that the foil base is dimensionally stable during a squeezing process due to the provision of the reinforcing element and the squeezing process is thereby optimized and, compared to known foil bags without such a reinforcing element, an advantageously larger volume of the mass located in the foil bag from the foil bag is expressible. This is advantageous from both an economic and an environmental point of view.
  • a cartridge according to the invention is resistant to damage due to the reinforcement element.
  • the film bag is preferably essentially cylindrical, with the lower base and preferably also an upper area designed to interact with the head part being arranged essentially perpendicularly to a longitudinal direction of the cartridge or film bag.
  • the reinforcement element covers only part of the surface of the lower area.
  • a reduced total weight of the cartridge can be achieved, essentially while maintaining the desired dimensional stability.
  • an advantageous folding behavior of the film bag during a pressing process is also achieved by such an embodiment.
  • the reinforcement element is advantageously arranged on a side of the bottom facing an interior space of the film bag.
  • the reinforcement element preferably has a circular cross section at least in regions. However, the reinforcement element can also have a different shape.
  • the reinforcing element is arranged in a middle area of the base with respect to a longitudinal axis of the film bag. In this way it can be ensured that the reinforcing element is arranged in a region of the base which interacts with a piston of a squeezing device during a squeezing process and on which the greatest forces act in particular.
  • the reinforcement element can be made in several parts, in which case, in particular, a plurality of reinforcement elements can be connected to the floor.
  • the reinforcement element is designed with at least one foil.
  • the reinforcement element be designed with a comparable, in particular identical foil as the bottom of the foil bag.
  • the reinforcement element can be designed as an injection-molded part and in particular glued or welded to the lower area or the floor or injection-molded directly onto in particular a floor film of the lower area.
  • the design of the reinforcement element as an injection molded part advantageously allows a flexible design of the reinforcement element and a desired adaptation to the respective application.
  • the material of the reinforcement element is harder than the material of the lower area, a desired dimensional stability of the lower area of the film bag can be achieved in a simple manner.
  • the bottom and/or the wall area of the foil bag are made of foil.
  • the head part has a receiving space which, in the longitudinal direction of the film bag, borders the film bag on the one hand and an outlet channel on the other, with the receiving space being at least partially, in particular almost completely, separated from the reinforcing element when the film bag is pressed out is filled in.
  • a particularly good emptying of the mass in the film bag is achieved when the shape of the reinforcing element facing the head part is designed to be essentially complementary to the shape of the receiving space of the head part facing the film bag or is adapted to it and preferably essentially corresponds to it. As a result, a residual volume of the mass remaining in the film bag after a complete squeezing process can be further reduced.
  • the reinforcing element is designed in two or more parts or has two or more areas, with a first area for supporting or reinforcing the bottom of the film bag against a piston of a squeezing device and a second area for interacting with the receiving space of the Head part is provided, wherein the second area is adapted to the shape of the receiving space and this fills as completely as possible in the pressed state of the film bag.
  • the second part or second region of the reinforcing element is thus provided in particular for pressing out the film bag as completely as possible.
  • An advantageously designed cartridge can have an inherently rigid insert which is connected to the film bag on a side facing the head part and is provided for connecting the film bag to the head part.
  • the head part is designed for the connection of at least two film bags.
  • two foil bags in particular not designed to be inherently rigid, can be attached to the head part, with the foil bags being able to have different dimensions in particular.
  • the head part is preferably designed in such a way that the different masses can be guided separately from one another in the area of the head part up to the outlet opening, so that the different masses can only come into contact after the outlet opening. This is important, for example, with two-component adhesives.
  • the cartridge can thus accommodate different masses and serve as multi-component packaging. It can be provided that the outlet openings assigned to the individual foil bags have a diameter that differs from one another, so that a desired mixing ratio of the different masses can be set in a simple manner.
  • the masses in the cartridge can be a chemical mass or a liquid, for example components of a two-component mixture.
  • sealants multi-component mortars, multi-component coating compounds, multi-component paints, multi-component foam precursors, multi-component adhesives, multi-component sealants and multi-component lubricants can be stored in the appropriate cartridges.
  • a resin for example an epoxy resin
  • a hardener for a two-component adhesive is stored in the other chamber.
  • the film bags can have a comparable length, in which case a ratio of the base areas of the film bags determines the mixing ratio to be achieved.
  • two foil bags are used, which have a different length from one another.
  • an "inherently rigid component” is understood to mean a component which retains its shape if it is removed from a device. Such a component is also referred to as inherently stable.
  • the head part represents a kind of adapter, since the head part makes it possible for commercially available attachments or standardized squeezing devices to be used for applying the compound located in the cartridge.
  • the head part has an outlet nozzle which is in fluid communication with the receptacle.
  • the outlet nozzle can define the flow rate, in particular via its diameter.
  • the outlet nozzle has a thread.
  • Commercially available attachments or squeezing devices for applying the compound in the cartridge can be attached precisely to an outlet opening of the outlet nozzle through the thread, so that the compound can be precisely positioned and dosed during application.
  • the outlet port can have a partition that divides the volume into two or more outlet channels.
  • the relative position of the dividing wall in the outlet port defines the cross sections of the outlet channels and thus the flow rates through these outlet channels.
  • the outlet channels can have different diameters.
  • the outlet channels can be oriented coaxially to one another.
  • FIG. 1 shows a cartridge 10 in a side view, exploded view in a longitudinal section, which is designed in particular to interact with a manually or automatically operated dispensing device.
  • the cartridge 10 comprises a head part 12 and two foil bags 14, 16, which can each be arranged on the head part 12.
  • a connection structure 13 is provided on the head part 12 here, on which a static mixer can be arranged in a known manner.
  • the masses in the foil bags 14, 16 can each be a chemical mass or a liquid, for example components of a two-component mixture.
  • sealants multi-component mortars, multi-component coating compounds, multi-component paints, multi-component foam precursors, multi-component adhesives, multi-component sealants and multi-component lubricants can be stored in the appropriate cartridges.
  • a resin for example an epoxy resin
  • a hardener for a two-component adhesive is stored in the other chamber.
  • the film bags 14, 16 can have a comparable length in the longitudinal direction L of the cartridge 10, in which case a ratio of the base areas of the film bags 14, 16 determines a mixing ratio to be achieved.
  • two foil bags are used, which have a different length from one another.
  • the film bags 14, 16 are designed to be essentially comparable and, in particular, only have a cross section that differs from one another.
  • the film bag 14 is described below as representative of the film bag 16 .
  • the film bag 14 is not designed to be inherently rigid, at least in its longitudinal direction L, and has a cylindrical and essentially elongated shape.
  • the film bag 14 is designed with a lateral wall area 20, a lower area 22 forming a base and an upper area 24 closing off the film bag 14 at the top, with the lower area 22 and the upper area 24 being essentially planar and essentially vertical are aligned to the longitudinal direction L.
  • the lower area 22 has a bottom film 26
  • the lateral wall area 20 has a film tube 28
  • the upper area 24 has a sealing film 30 .
  • the lower portion 22 has a base 32 and a collar 34 surrounding the base 32 .
  • the film tube 28 is attached to the outside of the collar 34 by welding or gluing. In principle, the tubular film 28 can also be attached to the inside of the collar 34 by welding or gluing.
  • the film tube 28 can be made, for example, from a film whose edge areas are connected to one another by gluing or welding. Provision can also be made for using a prefabricated film tube or a prefabricated film bag.
  • the base area 32 is circular, for example, so that the chamber 18 is cylindrical. In principle, however, any shape of the base area 32 is conceivable, for example rectangular or polygonal.
  • the film bag 14 has an inherently rigid annular insert 36, on which the film tube 28 on the one hand and the sealing film 30 on the other hand are arranged.
  • the sealing film 30 delimits an opening 38 of the film bag 14 defined by the insert 36 , in the area of which a mass arranged in the film bag 14 can exit from the film bag 14 after the sealing film 30 has been opened from the chamber 18 .
  • the foil bag 14 can be closed in particular in a sealing manner via the sealing foil 30 .
  • the head part 12 has two receptacles 38, 40, with which the film bag 14 or the film bag 16 can be brought into operative connection, in particular via the respective insert 36.
  • the head part 12 has a receiving space 42, 44, which is designed here as a cavity or depression in the respective receptacle 38, 30.
  • the receiving spaces 42 , 44 or expansion spaces have an essentially circular cross section and a height or expansion height 46 or 48 running in the longitudinal direction L of the cartridge 14 .
  • the head part 12 also has an outlet nozzle 50 with two outlet openings 52, 54 for the masses and two outlet channels 56, 58.
  • the outlet openings 52, 54 are in fluid connection via the respective outlet channel 56, 58 with the respective receiving space 42, 44, so that the mass located in the film bags 14, 16 can flow through the respective receiving space 42, 44 through the respective outlet channel 56, 58 in Direction of the respective outlet opening 52, 54 can flow.
  • the outlet channels 56, 58 are separated from one another by a partition wall 60 separately, so that the masses in the two film bags 14, 16 are prevented from transferring from one outlet channel 56 or 58 to the other outlet channel 58 or 56 in the area of the head part 12.
  • the partition wall 60 extends from a connecting web 62 separating the receptacles 38, 40 to the outlet openings 52, 54.
  • the two outlet channels 56, 58, as in 2 as can be seen have a different cross-section in order to set a desired mixing ratio of the masses.
  • the outlet nozzle 50 also has the connection structure designed as a thread 13, through which an attachment, which is not visible, in particular a mixer, can be attached to the head part 12.
  • the sealing film 30 has a predetermined breaking point, i. H. a weakened area, in which the sealing film 30 tears open when there is a corresponding pressure in the chamber 18 and an opening for the mass to exit is released.
  • the foil bags 14, 16 bulge here with the sealing foils 30 into the respective receiving space 42, 44 when pressure is exerted on the foil bags 14, 16 by means of a piston when the cartridge 10 is in a dispenser.
  • the lower region 22 of the foil bag 14 has, in addition to the bottom foil 26 , a reinforcing element 70 which in the present case is firmly connected to the bottom foil 26 on a side of the bottom foil 26 facing the chamber 18 .
  • the reinforcing element 70 has two one-piece or one-piece or integrally designed areas 71, 72, with a first area 71 of the reinforcing element 70 having a circular cross-section and a second area 72 of the reinforcing element 70 having a cuboid cross-section with a rounded end area.
  • the second region 72 is arranged at least in regions on a side of the first region 71 facing away from the bottom film 26 .
  • the first region 71 is essentially cylindrical with an essentially circular cross-section.
  • the first area 71 has a smaller cross section than the lower area 22 so that the first area 71 of the reinforcement element 70 is not connected to the bottom foil 26 over the entire base area 34 but only to a region of the bottom foil 26 .
  • the first region 71 of the reinforcement element 70 is arranged essentially concentrically to the circular cross section of the lower region 22 .
  • the first area 71 has Longitudinally L an extension 74 which is small compared to the cross-sectional area of the first region.
  • the second area 72 is displaced further in the direction of a wall area of the film tube 28 which faces a film tube of the film bag 16 .
  • the second region 72 has an extent 76 in the longitudinal direction L, which in the present case essentially corresponds to the expansion height 46 of the receiving space 42 and in the present case is many times larger than the extent 74 of the first region 71 .
  • the second region 72 has a substantially constant cross section in the longitudinal direction L.
  • the reinforcement element 70 can also only have a single area, for example the first area 71 or the second area 72 .
  • the first area and/or the second area can each have a different cross section, such as a rectangular, polygonal, oval or similar cross section. Provision can be made for the cross section of the first region 71 and/or the second region 72 of the reinforcement element 70 to change in the longitudinal direction L, so that a region of the reinforcement element 70 has a shape similar to a truncated cone, for example.
  • the first area 71 of the reinforcement element 70 can be made of a foil, which is preferably made of the same or a comparable material as the bottom foil 26, wherein the first area 71 can have one or more foil layers.
  • the reinforcement element 70 is preferably designed as an injection-molded part, which is in particular glued, welded or injection-molded onto the lower region 22 .
  • the design of the reinforcing element 70 as an injection molded part advantageously allows a flexible design of the reinforcing element 70.
  • the material of the reinforcing element 70 is preferably harder than the material of the bottom film 26, so that the lower region 22 of the film bag 14 is reinforced by the reinforcing element 70.
  • the provision of the reinforcement element 70 has the advantage that the lower region 22 or the film base is thereby reinforced and thus remains reliably dimensionally stable during a squeezing process when interacting with a piston of a squeezing device.
  • the second is achieved in that the lower area 22 is particularly dimensionally stable due to the reinforcing element 70 and preferably a larger amount of the mass in the chamber 18 can be discharged from the foil bag 14, 16.
  • the reinforcement element 70 in particular the second region 72 of the reinforcement element 70, is positioned on the lower region 22 and has such a shape that the reinforcement element 70 or the second region 72 of the reinforcement element 70 at the end of a pressing-out process, as shown in FIG 4 shown, is arranged in the longitudinal direction L in the receiving space 42 and the receiving space 42 as well as possible, in particular almost completely fills.
  • the reinforcement element 70 or the second region 72 of the reinforcement element 70 is thus designed in the present case to be essentially complementary to the shape of the receiving space 42 .
  • the good emptying of the foil bag 14 is due to the fact that during a squeezing process without a reinforcement element 70 in the area of the receiving space 42 the remaining mass can be displaced from this area by the provision of the reinforcement element 70 and discharged from the foil bag 14 .
  • the foil bag 16 can also be assigned a reinforcement element, which is adapted to the framework conditions present in the foil bag 16 in terms of structure and positioning.
  • the reinforcement element assigned to the film bag 16 has at least one area which is designed in a similar manner to the second area 72 of the reinforcement element 70 and is adapted to the dimensions of the receiving space 44 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Specialized In Special Use (AREA)
EP21211969.7A 2021-12-02 2021-12-02 Cartouche pour un dispositif d'extrusion Withdrawn EP4190715A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21211969.7A EP4190715A1 (fr) 2021-12-02 2021-12-02 Cartouche pour un dispositif d'extrusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21211969.7A EP4190715A1 (fr) 2021-12-02 2021-12-02 Cartouche pour un dispositif d'extrusion

Publications (1)

Publication Number Publication Date
EP4190715A1 true EP4190715A1 (fr) 2023-06-07

Family

ID=78821564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21211969.7A Withdrawn EP4190715A1 (fr) 2021-12-02 2021-12-02 Cartouche pour un dispositif d'extrusion

Country Status (1)

Country Link
EP (1) EP4190715A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927348A1 (de) * 1969-05-29 1970-12-23 Heitz Walter Helmut Behaelter bzw. Spender fuer pastenfoermige Stoffe
US5647510A (en) * 1993-08-20 1997-07-15 Keller; Wilhelm A. Multiple component metering and relative proportioning device with collapsible cartridge
DE69415310T2 (de) * 1994-07-18 1999-04-29 Wilhelm A. Merlischachen Keller Kartusche mit auswechselbarer Innenverpackung
DE10021769A1 (de) * 2000-05-04 2001-12-06 Beate Stricker Spender für Tuben
WO2007007555A1 (fr) * 2005-07-14 2007-01-18 Polymer Systems Co., Ltd. Cartouche pour pistolet à décharge
GB2434137A (en) * 2006-01-13 2007-07-18 Howe Homes Ltd Collapsible container suitable for liquids, gels and pastes
US20080127616A1 (en) * 2000-09-25 2008-06-05 Sunstar Engineering Inc. Flexible container and method of manufacturing the container, and highly viscous material charged container
WO2016096674A1 (fr) * 2014-12-14 2016-06-23 Daniel Andrei Cylindre pouvant être écrasé axialement
EP3835230A1 (fr) * 2019-12-13 2021-06-16 Hilti Aktiengesellschaft Cartouche et procédé de fabrication d'une cartouche

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927348A1 (de) * 1969-05-29 1970-12-23 Heitz Walter Helmut Behaelter bzw. Spender fuer pastenfoermige Stoffe
US5647510A (en) * 1993-08-20 1997-07-15 Keller; Wilhelm A. Multiple component metering and relative proportioning device with collapsible cartridge
DE69415310T2 (de) * 1994-07-18 1999-04-29 Wilhelm A. Merlischachen Keller Kartusche mit auswechselbarer Innenverpackung
DE10021769A1 (de) * 2000-05-04 2001-12-06 Beate Stricker Spender für Tuben
US20080127616A1 (en) * 2000-09-25 2008-06-05 Sunstar Engineering Inc. Flexible container and method of manufacturing the container, and highly viscous material charged container
WO2007007555A1 (fr) * 2005-07-14 2007-01-18 Polymer Systems Co., Ltd. Cartouche pour pistolet à décharge
GB2434137A (en) * 2006-01-13 2007-07-18 Howe Homes Ltd Collapsible container suitable for liquids, gels and pastes
WO2016096674A1 (fr) * 2014-12-14 2016-06-23 Daniel Andrei Cylindre pouvant être écrasé axialement
EP3835230A1 (fr) * 2019-12-13 2021-06-16 Hilti Aktiengesellschaft Cartouche et procédé de fabrication d'une cartouche

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