WO2025202012A1 - Cartouche ayant un manchon externe et un manchon interne séparable de celui-ci, et procédé de production de la cartouche - Google Patents

Cartouche ayant un manchon externe et un manchon interne séparable de celui-ci, et procédé de production de la cartouche

Info

Publication number
WO2025202012A1
WO2025202012A1 PCT/EP2025/057600 EP2025057600W WO2025202012A1 WO 2025202012 A1 WO2025202012 A1 WO 2025202012A1 EP 2025057600 W EP2025057600 W EP 2025057600W WO 2025202012 A1 WO2025202012 A1 WO 2025202012A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
outer sleeve
sleeve
piston
distal end
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.)
Pending
Application number
PCT/EP2025/057600
Other languages
German (de)
English (en)
Inventor
Peter Rushe
Karsten Wolf
Kai Ruthe-Steinsiek
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of WO2025202012A1 publication Critical patent/WO2025202012A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B05C17/00576—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
    • 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
    • B65D83/76—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a piston

Definitions

  • the invention relates to a cartridge for a viscous material that can be inserted into a cartridge gun. Furthermore, the invention relates to a method for producing the cartridge.
  • viscous materials such as silicone, acrylic and adhesives
  • a cartridge gun For both professional applications and private use, various viscous materials, such as silicone, acrylic and adhesives, are supplied as standard in cartridges from which the material can be dispensed using a cartridge gun.
  • the cylindrical cartridge body can be made of cardboard, which is more environmentally friendly than a cartridge body made of plastic.
  • the viscous material is contained in a separate tubular bag made of plastic film.
  • the tubular bag is closed at each end with a small clip, similar to a sausage tail.
  • the tubular bag must be opened. This is done using a sharp point that is molded onto or attached to the cartridge cap and protrudes into the cartridge interior.
  • the piston unit is moved towards the cartridge cap, the tubular bag, previously inserted into the cartridge interior, is pressed against the sharp point and thus automatically opened.
  • the viscous material can then flow through the dispensing outlet and be applied as needed.
  • the use of the foil-like tubular bag has its disadvantages: Filling the tubular bag takes a lot of time, as its ends must be closed with clamps. It has also been shown that when automatically opening the tubular bag using the sharp tip described above, particularly with highly viscous materials, greater forces must be applied to the piston unit to ensure that the tubular bag is slit open safely. In individual cases, this can lead to the user abandoning such a cartridge after a failed attempt and losing a future customer. Alternatively, it is also possible to cut the tubular bag before inserting it into the cartridge interior using a cutting device such as a A knife or scissors can be used to open the bag. However, this represents an additional step and can lead to contamination of the viscous material if the cutting tool has not been cleaned before opening the tubular bag.
  • the advantage of using a tubular bag is that once the cartridge is empty, the plastic tubular bag can be easily separated from the cardboard cartridge body, allowing for separate recycling.
  • a cardboard cartridge body which is also known from the prior art and coated on the inside with a plastic barrier layer, separate recycling is not readily possible due to the strong bond between the cardboard and the plastic.
  • the cartridge body comprises an outer sleeve and an inner sleeve which rests against an inner side of the outer sleeve.
  • the inner sleeve is secured by the cartridge cap at the distal end and by a securing element releasably attached to the proximal end such that upon removal of the cartridge cap from the distal end and upon removal of the securing ring from the proximal end of the cartridge body, the inner sleeve can be separated from the outer sleeve.
  • the inner sleeve is secured to the outer sleeve exclusively or at least primarily by the cartridge cap and the securing ring.
  • the inner sleeve can be separated from the outer sleeve, for example by axial withdrawal. After removal of the cartridge cap and securing element, no tools or particular force are required to separate the inner and outer sleeves. There is no material bond between the outer sleeve and the inner sleeve.
  • the outer sleeve can be made of a material based on plant fibers.
  • the outer sleeve can be made of cardboard. After the cartridge has been emptied and the cartridge cap, piston unit, fixing element, and inner sleeve have been separated, the outer sleeve can be disposed of with the waste paper and thus returned to the recycling cycle. The sleeve can already be made of recycled paper, making the cartridge an even more sustainable product.
  • the outer sleeve can also be made of a lightweight plastic.
  • the inner sleeve can be made of plastic, aluminum, or a combination of plastic and aluminum.
  • the inner sleeve can be single-layer or multi-layer.
  • the wall thickness of the inner sleeve can be 40 to 500 ⁇ m, preferably 50 to 400 ⁇ m. In one embodiment, the wall thickness is 60 to 70 ⁇ m.
  • the inner sleeve can be formed by a sheet with a width greater than the circumference of the outer sleeve, wherein, in a rolled-up state, two longitudinal edges of the sheet overlap to form an overlapping area.
  • the width of the sheet is more than 148 mm, for example, 150 mm to 160 mm.
  • the overlapping area would be 12 mm wide. In one embodiment, the overlapping area is 1 to 20% of the (total) width of the sheet.
  • the two longitudinal edges can be fastened together in the overlapping area.
  • a weld seam is provided in the overlapping area, extending parallel to the longitudinal edges.
  • the weld seam can extend over the entire length of the sheet. It is also possible for the weld seam to have individual, separate sections or points for fastening the longitudinal edges.
  • the inner sleeve is pressed against the inside of the outer sleeve by an elastic restoring force.
  • an elastic restoring force for example, a (flat) sheet is used to form the inner sleeve, which is elastically deformed when rolled up into a roll or cylinder and is inserted axially into the outer sleeve in this elastically deformed state, the restoring forces ensure that the roll or inner sleeve expands again until it comes into contact with the inner surface of the outer sleeve. The remaining restoring forces result in the roll/inner sleeve being pressed against the outer sleeve with a residual tension.
  • the releasable attachment of the cartridge cap to the distal end of the cartridge body can be achieved by a distal clamping force.
  • a portion of the inner sleeve is preferably located between the cartridge cap and the distal end of the cartridge body, which is clamped to the distal end by the interaction of the cartridge cap and the outer sleeve, thus securing it to the distal end.
  • the releasable attachment can have an undercut so that the cartridge cap snaps into a locked position upon connection. The undercut can be designed such that the locking can be released again by a moderate separation force.
  • the releasable attachment of the fixation element to the proximal end of the cartridge body can be achieved by a proximal clamping force.
  • a portion of the inner sleeve can be clamped between the fixation element and the outer sleeve.
  • the releasable attachment of the fixation element can have an undercut so that the fixation element snaps into a locked position.
  • the piston unit has an outer piston, an inner piston, and an expansion ring, wherein the outer piston is expanded radially by the expansion ring when the inner piston is pressed against the expansion ring or the outer piston by the cartridge gun.
  • the inner piston can have a piston body in which at least one slot is provided, which extends axially from the expansion ring to a contact surface for a pressure plate of the cartridge gun.
  • the expansion ring is preferably not slotted. Due to the slot-free and thus closed circumference, the expansion ring has a certain dimensional stability, which allows forces to be easily transferred to the outer piston.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)

Abstract

L'invention concerne une cartouche (1) pour un matériau visqueux (2), ladite cartouche pouvant être insérée dans un pistolet à cartouche (100), la cartouche comprenant : a) un corps de cartouche cylindrique (10) ayant une extrémité proximale (11) et une extrémité distale (12), le corps de cartouche (10) délimitant un intérieur de cartouche (14) qui est destiné à recevoir le matériau visqueux (2) ; b) un capuchon de cartouche (30), qui est fixé de manière amovible à l'extrémité distale (12) du corps de cartouche (10) et a une sortie de distribution (31) ; c) une unité de piston (40) qui peut être déplacée le long d'un axe longitudinal (13) du corps de cartouche (10) en direction de l'extrémité distale (12) afin de presser le matériau visqueux (2) hors de l'intérieur de cartouche (14) à travers la sortie de distribution (31). L'invention est caractérisée en ce que le corps de cartouche (10) présente un manchon externe (15) et un manchon interne (14), qui est fixé par le capuchon de cartouche (30) au niveau de l'extrémité distale (12) et par un élément de fixation (60) fixé de manière amovible à l'extrémité proximale (11) de telle sorte que, lorsque le capuchon de cartouche (30) est détaché de l'extrémité distale (12) et lorsque la bague de fixation (60) est détachée de l'extrémité proximale (11) du corps de cartouche (10), le manchon interne (16) peut être séparé du manchon externe (15). L'invention concerne également un procédé de fabrication de la cartouche (1).
PCT/EP2025/057600 2024-03-27 2025-03-20 Cartouche ayant un manchon externe et un manchon interne séparable de celui-ci, et procédé de production de la cartouche Pending WO2025202012A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP24166706.2 2024-03-27
EP24166706.2A EP4624057A1 (fr) 2024-03-27 2024-03-27 Cartouche avec manchon externe et manchon interne séparable par celui-ci et procédé de fabrication de la cartouche

Publications (1)

Publication Number Publication Date
WO2025202012A1 true WO2025202012A1 (fr) 2025-10-02

Family

ID=90482538

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/057600 Pending WO2025202012A1 (fr) 2024-03-27 2025-03-20 Cartouche ayant un manchon externe et un manchon interne séparable de celui-ci, et procédé de production de la cartouche

Country Status (2)

Country Link
EP (1) EP4624057A1 (fr)
WO (1) WO2025202012A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3817427A (en) * 1971-12-27 1974-06-18 Milprint Inc Toothpaste tubes and similar tubular containers and methods for their manufacture
JPS62130071U (fr) * 1986-02-10 1987-08-17
EP0596906B1 (fr) * 1991-07-17 1998-03-04 KIRCHBERG, Karl Recipient d'emballage en forme de douille en materiau multicouche, ainsi que procede et dispositif pour la fabrication d'un tel recipient d'emballage
JP2003040360A (ja) * 2001-02-15 2003-02-13 Hosokawa Yoko Co Ltd 流動性物質用カートリッジ及び吐出装置
US20210346909A1 (en) * 2018-09-19 2021-11-11 Prc-Desoto International, Inc. Expandable Plunger Head Assemblies for Sealant Dispensing Guns
EP4241894A1 (fr) 2022-03-08 2023-09-13 Henkel AG & Co. KGaA Système de cartouche

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3817427A (en) * 1971-12-27 1974-06-18 Milprint Inc Toothpaste tubes and similar tubular containers and methods for their manufacture
JPS62130071U (fr) * 1986-02-10 1987-08-17
EP0596906B1 (fr) * 1991-07-17 1998-03-04 KIRCHBERG, Karl Recipient d'emballage en forme de douille en materiau multicouche, ainsi que procede et dispositif pour la fabrication d'un tel recipient d'emballage
JP2003040360A (ja) * 2001-02-15 2003-02-13 Hosokawa Yoko Co Ltd 流動性物質用カートリッジ及び吐出装置
US20210346909A1 (en) * 2018-09-19 2021-11-11 Prc-Desoto International, Inc. Expandable Plunger Head Assemblies for Sealant Dispensing Guns
EP4241894A1 (fr) 2022-03-08 2023-09-13 Henkel AG & Co. KGaA Système de cartouche

Also Published As

Publication number Publication date
EP4624057A1 (fr) 2025-10-01

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