EP0351441A1 - Cartouche pour masses plastiques - Google Patents

Cartouche pour masses plastiques Download PDF

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Publication number
EP0351441A1
EP0351441A1 EP19880111733 EP88111733A EP0351441A1 EP 0351441 A1 EP0351441 A1 EP 0351441A1 EP 19880111733 EP19880111733 EP 19880111733 EP 88111733 A EP88111733 A EP 88111733A EP 0351441 A1 EP0351441 A1 EP 0351441A1
Authority
EP
European Patent Office
Prior art keywords
piston
cartridge body
cartridge
projections
cartridge according
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Withdrawn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
EP19880111733
Other languages
German (de)
English (en)
Inventor
Werner Brüning
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.)
Alfred Fischbach KG Kunststoff Spritzgusswerk
Original Assignee
Alfred Fischbach KG Kunststoff Spritzgusswerk
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 Alfred Fischbach KG Kunststoff Spritzgusswerk filed Critical Alfred Fischbach KG Kunststoff Spritzgusswerk
Priority to EP19880111733 priority Critical patent/EP0351441A1/fr
Publication of EP0351441A1 publication Critical patent/EP0351441A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a cartridge for plastic materials according to the preamble of patent claim 1.
  • plastic or the like as a sealant, adhesive or the like. used to accommodate plastic cartridges.
  • These cartridges consist of a cylindrical cartridge body in which a piston is slidably housed. At the front end of the cartridge body there is an outlet opening through which the plastic mass is squeezed out when the piston is pushed forward. The plunger is pushed forward with an extrusion tool into which the cartridge is inserted.
  • Such cartridges are open at the rear end so that the plunger can be inserted into the rear end.
  • the piston closes this in storage condition sealing rear end of the cartridge body and the outlet opening is closed so that no air penetrates into the cartridge and causes the mass contained therein to harden.
  • a difficulty with such cartridges is to prevent the plunger from sliding out of the rear end of the cartridge body.
  • a closure part at the rear end, which is placed after the piston has been inserted and prevents the piston from moving back.
  • Such a closure part represents an additional effort and increases the cost of the cartridge.
  • Another possibility is to fold the rear end of the cartridge body inwards after the piston has been introduced, so that an inward edge is formed which forms a stop for the piston.
  • the invention has for its object to provide a cartridge of the type specified in the preamble of claim 1, which prevents the piston from moving out of the cartridge body in a simple manner, but does not complicate the assembly of the piston, and which is simple and inexpensive to produce, wherein no further assembly or forming operations are required after the piston has been inserted.
  • inwardly directed projections are arranged at the rear end of the cartridge body, against which the piston can be moved with elastic deformation when it is inserted into the cartridge body.
  • These projections which are already molded onto the cartridge body during its manufacture, allow the piston to be pushed in with some effort, but prevent the piston from escaping from the cartridge body.
  • the plunger is inserted into the rear end of the cartridge body.
  • This piston is preferably made of plastic with a certain elasticity, so that it can deform when passing through the projections.
  • the circumferential parts of the piston which come into contact with the projections are expediently beveled to the rear, so that the piston can easily snap over the projections.
  • the circumferential parts of the piston which are chamfered towards the rear, ensure that the piston cannot pass the projections in the opposite direction, but hooks onto these projections, so that it can no longer leave this cartridge body without being destroyed after it has been introduced into the cartridge body.
  • the projections can in principle be designed as inward thickening of the wall of the cartridge body, but it is preferably a bead-like deformation of the cylinder wall, which originally has a constant thickness over the length, but is deformed or bulged inwards in a subsequent deformation process.
  • the projections have a sawtooth shape, which allows the piston to pass in the forward direction, but blocks the retraction.
  • the projections can each consist of a deformable section adjoining a circumferential slot.
  • the piston normally has a certain elasticity in order to be temporarily deformed when it is inserted into the cartridge body
  • the projections or the wall of the cartridge body also have an elasticity. It does not matter whether the piston or the cartridge body mainly yields when the piston is pushed into the cartridge body. It is important that the piston can be pushed into the cartridge body with elastic deformation of the piston and / or of the cartridge body and then lies sealingly against the wall of the cartridge body.
  • the cartridge 10 has a cylindrical cartridge body 11 made of plastic.
  • the cartridge body 11 is provided with an integrally molded front wall 12.
  • the piston 14 is inserted into the cartridge body 11.
  • This piston 14 has a cylindrical circumferential wall 15 with continuous circumferential ribs 16 projecting therefrom and directed obliquely to the rear.
  • the front wall 17 of the piston 14 is arched and provided with a tip 18 in the middle.
  • the peripheral wall 15 and the front wall 17 delimit the rearwardly open cavity 19 of the piston 14. In this cavity, the feed member of an extrusion tool (not shown) is inserted, into which the cartridge 10 can be inserted in order to press the cartridge contents out of the outlet nozzle.
  • each projection 20 adjoins a slot 21, the region of the wall of the cartridge body 11 arranged behind the slot 21 being pressed inwards and forming the projection 20.
  • the projections 20 have a sawtooth shape in this way, the forward flank 22 constituting the boundary of the slot 21 and forming a stop edge for the piston.
  • Each slot 21 has a circumferential extent of approximately 1 cm, while the diameter of the cartridge body 11 is approximately 5 cm.
  • the projections 20 are produced after the manufacture of the cartridge body 11 by slitting and deforming the wall of the cartridge body. After filling the cartridge body 11 with the plastic mass, only the piston 14 needs to be inserted. Assembly or deformation processes are no longer required at this stage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP19880111733 1988-07-21 1988-07-21 Cartouche pour masses plastiques Withdrawn EP0351441A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19880111733 EP0351441A1 (fr) 1988-07-21 1988-07-21 Cartouche pour masses plastiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19880111733 EP0351441A1 (fr) 1988-07-21 1988-07-21 Cartouche pour masses plastiques

Publications (1)

Publication Number Publication Date
EP0351441A1 true EP0351441A1 (fr) 1990-01-24

Family

ID=8199127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880111733 Withdrawn EP0351441A1 (fr) 1988-07-21 1988-07-21 Cartouche pour masses plastiques

Country Status (1)

Country Link
EP (1) EP0351441A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0457452A2 (fr) * 1990-05-15 1991-11-21 The Procter & Gamble Company Distributeur pour délivrer des composés pâteux
US5289949A (en) 1992-06-22 1994-03-01 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Multi-cavity dispensing refill cartridge
WO1994015856A1 (fr) * 1993-01-15 1994-07-21 Henkel Kommanditgesellschaft Auf Aktien Dispositif pouvant contenir un produit visqueux
US5373969A (en) * 1992-07-16 1994-12-20 Riso Kagaku Corporation Container having means for preventing refilling
US5400926A (en) * 1991-01-29 1995-03-28 Keller; Wilhelm A. Dispensing cartridge with storage cylinder and feeding piston
US5441180A (en) * 1993-06-23 1995-08-15 American Cyanamid Company Dispenser gun for viscous or semi-viscous products
EP0688727A1 (fr) * 1994-06-22 1995-12-27 Wilhelm A. Keller Procédé d'assemblage d'une cartouche comprenant un piston
US5551603A (en) * 1993-06-23 1996-09-03 American Cyanamid Company Dispenser gun for viscous or semi-viscous products
US5622288A (en) * 1995-06-12 1997-04-22 Sonoco Products Company Cartridge plunger with surface cleaning skirt
US5680967A (en) * 1996-09-13 1997-10-28 Courtaulds Aerospace, Inc. Dispensing cartridge
US6000581A (en) * 1993-06-23 1999-12-14 American Cyanamid Company Dispenser gun for viscous or semi-viscous products
US6719170B2 (en) * 2001-12-20 2004-04-13 Nordson Corporation Pen for dispensing a curable liquid
EP1657183A2 (fr) * 2004-11-12 2006-05-17 Artex-Rawlplug Limited Moyen de rétention pour pistons
EP2546166A1 (fr) 2011-07-15 2013-01-16 Sulzer Mixpac AG Sécurisation de piston
US20130105515A1 (en) * 2011-11-02 2013-05-02 Plas-Pak Industries, Inc. Dispenser system
EP4108598A3 (fr) * 2021-06-25 2023-03-01 Saier Verpackungstechnik GmbH & Co. KG Cartouche dotée d'une pièce tête conçue sous la forme de feuille et manchon de support

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013124A1 (de) * 1979-04-06 1980-10-23 Giuseppe Catalfamo Behaelter mit sicherheitsverschluss fuer dickfluessige produkte
EP0194494A2 (fr) * 1985-02-25 1986-09-17 Package Research Corporation Distributeur de pâte dentifrice
EP0270467A1 (fr) * 1986-11-03 1988-06-08 Cebal Distributeur pour produit pâteux et procédé d'introduction de son piston à l'intérieur de son corps tubulaire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013124A1 (de) * 1979-04-06 1980-10-23 Giuseppe Catalfamo Behaelter mit sicherheitsverschluss fuer dickfluessige produkte
EP0194494A2 (fr) * 1985-02-25 1986-09-17 Package Research Corporation Distributeur de pâte dentifrice
EP0270467A1 (fr) * 1986-11-03 1988-06-08 Cebal Distributeur pour produit pâteux et procédé d'introduction de son piston à l'intérieur de son corps tubulaire

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0457452A2 (fr) * 1990-05-15 1991-11-21 The Procter & Gamble Company Distributeur pour délivrer des composés pâteux
EP0457452A3 (en) * 1990-05-15 1993-01-20 The Procter & Gamble Company Dispenser for delivering pasty compounds
US5400926A (en) * 1991-01-29 1995-03-28 Keller; Wilhelm A. Dispensing cartridge with storage cylinder and feeding piston
US5289949A (en) 1992-06-22 1994-03-01 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Multi-cavity dispensing refill cartridge
US5373969A (en) * 1992-07-16 1994-12-20 Riso Kagaku Corporation Container having means for preventing refilling
WO1994015856A1 (fr) * 1993-01-15 1994-07-21 Henkel Kommanditgesellschaft Auf Aktien Dispositif pouvant contenir un produit visqueux
US5441180A (en) * 1993-06-23 1995-08-15 American Cyanamid Company Dispenser gun for viscous or semi-viscous products
US5551603A (en) * 1993-06-23 1996-09-03 American Cyanamid Company Dispenser gun for viscous or semi-viscous products
US5626265A (en) * 1993-06-23 1997-05-06 American Cyanamid Company Dispenser gun for viscous or semi-viscous products
US6000581A (en) * 1993-06-23 1999-12-14 American Cyanamid Company Dispenser gun for viscous or semi-viscous products
EP0688727A1 (fr) * 1994-06-22 1995-12-27 Wilhelm A. Keller Procédé d'assemblage d'une cartouche comprenant un piston
US5622288A (en) * 1995-06-12 1997-04-22 Sonoco Products Company Cartridge plunger with surface cleaning skirt
WO1998011002A1 (fr) * 1996-09-13 1998-03-19 Courtaulds Aerospace, Inc. Cartouche de distribution
US5680967A (en) * 1996-09-13 1997-10-28 Courtaulds Aerospace, Inc. Dispensing cartridge
AU720194B2 (en) * 1996-09-13 2000-05-25 Prc-Desoto International, Inc. Dispensing cartridge
US6719170B2 (en) * 2001-12-20 2004-04-13 Nordson Corporation Pen for dispensing a curable liquid
EP1657183A2 (fr) * 2004-11-12 2006-05-17 Artex-Rawlplug Limited Moyen de rétention pour pistons
EP1657183A3 (fr) * 2004-11-12 2006-05-31 Artex-Rawlplug Limited Moyen de rétention pour pistons
EP2546166A1 (fr) 2011-07-15 2013-01-16 Sulzer Mixpac AG Sécurisation de piston
CN102874485A (zh) * 2011-07-15 2013-01-16 苏舍米克斯帕克有限公司 活塞固定装置
US20130015205A1 (en) * 2011-07-15 2013-01-17 Sulzer Mixpac Ag Piston securing device
US8925764B2 (en) 2011-07-15 2015-01-06 Sulzer Mixpac Ag Piston securing device
CN102874485B (zh) * 2011-07-15 2016-12-21 苏舍米克斯帕克有限公司 料筒及其制造方法
US20130105515A1 (en) * 2011-11-02 2013-05-02 Plas-Pak Industries, Inc. Dispenser system
EP4108598A3 (fr) * 2021-06-25 2023-03-01 Saier Verpackungstechnik GmbH & Co. KG Cartouche dotée d'une pièce tête conçue sous la forme de feuille et manchon de support

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19900330

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Effective date: 19920124

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Owner name: ALFRED FISCHBACH KUNSSTOFFSPRITZGUSSWERK

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