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EP0708033A1 - Récipient d'emballage composé d'un film tubulaire obturé à ses deux extrémités - Google Patents

Récipient d'emballage composé d'un film tubulaire obturé à ses deux extrémités Download PDF

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Publication number
EP0708033A1
EP0708033A1 EP95103635A EP95103635A EP0708033A1 EP 0708033 A1 EP0708033 A1 EP 0708033A1 EP 95103635 A EP95103635 A EP 95103635A EP 95103635 A EP95103635 A EP 95103635A EP 0708033 A1 EP0708033 A1 EP 0708033A1
Authority
EP
European Patent Office
Prior art keywords
piston
packaging container
container according
film tube
plate
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.)
Granted
Application number
EP95103635A
Other languages
German (de)
English (en)
Other versions
EP0708033B1 (fr
Inventor
Frank Forstmann
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.)
Schieferdecker & Co KG GmbH
Original Assignee
Schieferdecker & Co KG GmbH
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 Schieferdecker & Co KG GmbH filed Critical Schieferdecker & Co KG GmbH
Publication of EP0708033A1 publication Critical patent/EP0708033A1/fr
Application granted granted Critical
Publication of EP0708033B1 publication Critical patent/EP0708033B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/28—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for expelling contents
    • B65D35/30—Pistons

Definitions

  • the invention relates to a packaging container, consisting of a film tube closed at both ends in the filled state.
  • Packaging containers of the generic type are known per se for receiving lubricants, sealants and the like. Such lubricants or sealants are used, for example, in the construction industry or in the field of automotive engineering. Originally, these agents were provided in stable, substantially thick-walled cylindrical containers. A nozzle tip can be arranged at one end of these containers, and pressure can be applied at the other end of the container by appropriate applications, so that the agent located in the container is pressed out of the container by the nozzle tip.
  • the cylindrical containers used are generally disposable containers, which are disposed of or recycled after the contents have been discharged.
  • a special packaging container of the type described is disclosed in US Pat. No. 2,853,209.
  • a cylindrical container is formed from a very special polyethylene material that has been polymerized using a catalyst containing chromium oxide.
  • the special polymer has sufficient inherent rigidity to be able to absorb axial pressures, on the other hand sufficient flexibility to be able to telescope into one another.
  • tubular bags consist essentially of a film tube made of thin film material, which is closed at both ends. For this purpose it is known to close both ends by means of so-called metal clips.
  • the use of such tubular bags is primarily intended to avoid the need to dispose of a large number of empty cylindrical containers. Since the tubular bags are not dimensionally stable, they are used for processing the agents in them in a dimensionally stable cylindrical envelope, at one end of which a closure with an outlet opening, for example for arranging a nozzle tip, is arranged. Pressure can then be exerted on the tubular bag from the other end of the cylindrical outer shell.
  • the tubular bag To dispense the mass in the tubular bag, the tubular bag must be opened. In practice, this is done by destroying the tubular bag cover, for example by slitting, piercing or the like. This puncturing or opening of the tubular bag expediently takes place in the region of the end which is located on the closure of the cylindrical sleeve provided with the nozzle tip.
  • tubular bags After the tubular bags have been emptied, they are removed from the cylindrical sleeves, so that only a small, empty tubular bag has to be disposed of. This is an advantage over the use of cylindrical packaging containers.
  • a film tube is produced from a film web, in which the two side edges of the film web are put together and connected to one another.
  • the free end of the film tube is closed and the lengths of film tube filled with the appropriate means are closed and cut to length.
  • the resulting free and empty film tube end is also closed at the same time, so that in this way continuously filled and sealed tube bags are produced which can be used in the manner described above.
  • the known tubular bag systems In addition to the described disadvantages of the known tubular bag systems, according to which both the dispensing device and the operator come into contact with the agent in the tubular bag, the known tubular bag systems also do not meet the requirements for residual emptying. It is required that only less than one percent of the originally contained filling quantity may remain in the container in such containers after complete emptying. However, since the tubular bag is undefined kink, these emptying quantities can not be guaranteed.
  • the object of the invention is to improve a packaging container of the generic type in such a way that it can be used and disposed of without contamination of the aids used for its use, a defined residual emptying being made possible within the framework of the applicable regulations.
  • a cylindrical piston be arranged in the tubular bag, the part of the film tube lying behind the piston in the case of a piston advance being retentive against the piston advance direction, and that at the end of the film tube opposite the piston, this with a Longitudinal center line is closed substantially vertically arranged flange-like plate.
  • film tube is understood to mean a cylindrical tube made of a film-like material which has no or only very little axial rigidity.
  • these film tubes cannot withstand the piston feed movements and deviate from the cylindrical shape, or they are just so strong that the piston can be advanced without the film tube being deformed.
  • the measure according to the invention enables a defined pressing out of the tubular bag.
  • the piston When pressed, the piston can be guided along the inner wall of the tubular bag and prevent material residues from remaining in kinks and the like. It is possible that the rear edge of the piston, which is connected to the end of the tubular bag over the entire circumference, is turned inside out, if this is provided, so that material accumulation is avoided in the area behind the piston. At the same time, the amount of waste remaining is reduced by this arrangement according to the invention.
  • the practically scratched out film tube is reduced to half its length when empty and can be easily disposed of when the film tube material and the piston material are the same.
  • the part of the film tube behind the piston must also be retained or the tube must be cylindrically stabilized.
  • the manufacture of the packaging container is considerably improved by the configuration according to the invention, since the suction of the air in the tubular bag is improved and simplified by inserting the cylindrical piston. If the tubular bag is closed with a clip, there are undefined contours that are not easy to evacuate. According to the invention, the tubular bag remains smooth at its end and enables the piston to be inserted and the rear bag volume to be evacuated at the same time. Airtight packaging is necessary to avoid premature reactions of the material in the tubular bag.
  • the cylindrical piston is advantageously designed as a hollow piston.
  • the tubular bag end is attached to the inner circumference of the hollow piston.
  • the hollow piston is inserted into the tubular bag so that the end of the tubular bag can be folded around the rear edge of the hollow piston and then attached to the inner periphery of the hollow piston. This measure achieves the advantages described above.
  • the cylindrical piston has a detachable piston ring at the rear end.
  • This piston ring is connected to the tubular bag end.
  • the piston is separated from the piston ring arranged at the rear end, in that the piston ring is held relative to the advanced piston.
  • This measure is particularly favorable because folds of the hose in the compression area are counteracted, even without cylindrical stabilizers.
  • the separation point between the pistons and piston ring on a locking connection This is expediently designed such that both are separated from one another by exerting pressure on the piston while the piston ring is held in place, and the piston is advanced relative to the piston ring in order to dispense the material in the tubular bag.
  • a membrane closing the film tube is arranged at least in one of the two opening areas of the film tube.
  • the film tube can thus be hermetically sealed against oxygen and diffusions of any kind can be avoided.
  • a membrane be arranged at the end of the film tube opposite the piston.
  • a membrane at the end provided with the piston which membrane covers the piston surface pointing into the film tube according to a proposal of the invention.
  • the piston and possibly the piston ring are advantageously made of aluminum. This is particularly advantageous if, according to a further proposal of the invention, the film tube is also made of aluminum. This significantly simplifies waste disposal.
  • the piston and possibly the piston ring be made of plastic, preferably polyethylene.
  • the film tube is also made of plastic.
  • the film tube can be coated both inside and outside.
  • Polyamide is advantageously proposed for the inner coating, and polyethylene is advantageously used for the outer coating. All or individual elements can also be formed from polyamide.
  • connection between the tubular bag end and the rear area of the cylindrical piston is of particular importance, be it on the piston itself or on the piston ring.
  • the tubular bag and the piston or the piston ring are joined together at this end welded.
  • glue the elements are advantageously proposed to glue the elements together.
  • connection of the film tube and the flange-like plate is advantageously proposed.
  • the packaging container according to the invention is characterized by particularly clean and simple usability.
  • the packaging container according to the invention can be completely emptied and disposed of without soiling the tools used or the operator.
  • the environmental impact is significantly reduced by using the packaging container according to the invention.
  • the processing of the means provided in the packaging containers is simplified and more economical.
  • the material yield is improved by the better evacuability of the packaging container during filling.
  • the packaging container according to the invention can be produced with little economic effort and makes it possible to use aids which can also be produced with little economic effort.
  • the packaging container according to the invention is closed at the end opposite the piston with a flange-like plate which has a dispensing opening.
  • This discharge opening is advantageously formed on the plate in the form of a tubular nozzle connection piece.
  • a nozzle tip for dispensing the agents located in the packaging container can be attached to these.
  • the nozzle connection piece is advantageously arranged concentrically on the circular plate and, according to a further proposal, has a thread so that the nozzle tip can be screwed on.
  • the nozzle connection piece can also be arranged in an eccentric position. This is advantageous if several packaging containers are used next to each other for the processing of multi-component systems.
  • packaging containers of the type according to the invention with different diameters can be clamped next to one another in dispensing devices.
  • the output is then carried out by mixing nozzles, which are each connected to the nozzle connection piece of the container.
  • the nozzle connecting piece advantageously has an internal thread.
  • the packaging container can be Completely empty, because after a complete compression of the packaging container, the remaining agents to be processed are in the tip of the nozzle.
  • the plate is advantageously inserted into the film tube and connected to the tube material.
  • it has proven to be advantageous to connect and flare the plate with its circumference to the tube material. It is important that the flanged edge is arranged so that it lies flush with the cylindrical tubular bag material underneath in one plane and does not protrude from the cylindrical contour. This measure supports the use of simple output devices.
  • the connection can also be made by welding or gluing.
  • the plate is made of plastic, preferably polyethylene or polyamide.
  • the plate can also be made of aluminum.
  • the formation of polyethylene has the advantage of high dimensional stability, so that even external shocks do not change the appearance of the packaging.
  • the packaging container be dimensionally stable and stand up independently. This can be achieved, for example, by an appropriate piston arrangement in combination with an appropriate filling pressure.
  • the film thickness of the film tube material is selected so that the forces arising from the piston advance can be endured without the film tube being filled and cylindrically unsupported in the area in front of the piston being deformed. Cylindrical support is understood to mean, for example, the tight contact of the film tube within a cylindrical tube of an output device.
  • the packaging container 1 shown in Figure 1 consists of a tubular bag 2, which is closed at one end with a plate 3, which is arranged substantially perpendicular to the longitudinal central axis of the film tube.
  • the plate 3 is circular and the tubular bag 2 is attached to the outer periphery of the plate 3.
  • the other end 4 of the tubular bag 2 is closed by a piston which will be described in more detail later.
  • a nozzle connection piece 5 is arranged, which is cut open for processing the material arranged in the packaging container 1.
  • the nozzle connection piece 5 has a thread 6, so that a nozzle tip can be attached to the nozzle connection piece 5 by screwing.
  • Other forms of fastening are possible, such as bayonet locks and the like.
  • the plate 3 has a locking device 7 which is pierced before the material is first dispensed.
  • the plate 3 is connected to the tubular bag 2 in the region of the circumference by a crimp.
  • care must be taken that the flanged edge lies uniformly in the cylindrical contour of the packaging container.
  • the flanged edge in the region of the edge 8 should neither protrude beyond this contour lie within. This uniform outer wall improves the use of dispensing devices of simple construction.
  • a piston 9 is inserted into the film tube 2.
  • This piston 9 comprises a piston plate region, the outer contour of which corresponds to the inner contour of the plate 3. This enables complete residual emptying.
  • the piston 9 comprises a piston ring region 11, which strokes along the inner wall of the film tube 2 when the piston is advanced and also ensures an airtight seal.
  • a piston ring 12 Arranged behind the piston 9 is a piston ring 12, which is connected to the piston in the piston ring region via a connection 13, a snap-in connection in the exemplary embodiment shown. If the piston ring 12 is held firmly and the piston 9 is advanced, the two areas are separated from one another.
  • the piston ring 12 is connected to the hose material at the fastening point 14, which can be located on the lower outer edge, on the rear edge or on the inside of the piston ring.
  • the packaging container For the use of the packaging container, this is inserted into a tubular dispenser, so that the plate 3 is supported at one end.
  • the nozzle connection piece 5 projects through the counter bearing plate and can be provided with a nozzle tip for dispensing.
  • the piston ring 12 is fixed with the film tube end attached to it.
  • the piston 9 can then be advanced through the nozzle connecting piece 5 to dispense the material.
  • the piston By sticking to the rear end of the film tube, the piston always strokes along smooth film tube walls, so that complete emptying is promoted.
  • a tubular film tube is first wrapped around a cylindrical body and connected along the longitudinal edge, for example by gluing, welding or the like.
  • the plate 3 can be inserted into the film tube to be formed.
  • the edge of the plate 3 is then crimped in order to connect the plate 3 to the film tube.
  • the piston is inserted under suction of the air in the rear end and connected to the film tube at the rear edge. This connection is made by welding, e.g. B. high frequency welding, flanging, gluing or the like.
  • a production machine with a process step turret is expediently used, so that the production process runs continuously and a production measure takes place in each turret step.
  • the production ends with the completely filled and evacuated packaging container.
  • FIG. 4 shows the area of the film tube 2 which is closed by the sealing plate 3, a membrane 15 hermetically sealing the film tube being arranged in the interior of the film tube 2 directly below the sealing plate 3.
  • This membrane can be welded, glued or otherwise connected to the film tube in the peripheral region. It is essential that the film tube is closed with a membrane after filling. The application of the closure plate is then simplified. The film tube is always gas-tight and secured against diffusion.
  • a corresponding membrane 15 is shown at the piston end of the film tube 2. This membrane also hermetically seals the film tube in the peripheral area.
  • the piston 9 and possibly the piston ring 12 can then also be introduced in other mechanical processing positions.
  • FIG. 1 Another alternative or additional form of arrangement for a membrane 15 is shown in FIG.
  • the piston ring 12 is provided with a flange so that the membrane 15 is fastened to the flange in a completely sealing manner on the underside.
  • the film tube 2 is then connected to the piston ring in the region of the cylindrical circumference of the piston ring 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Packages (AREA)
EP95103635A 1994-10-20 1995-03-14 Récipient d'emballage composé d'un film tubulaire obturé à ses deux extrémités Expired - Lifetime EP0708033B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9416978U 1994-10-20
DE9416978U DE9416978U1 (de) 1994-10-20 1994-10-20 Verpackungsbehälter

Publications (2)

Publication Number Publication Date
EP0708033A1 true EP0708033A1 (fr) 1996-04-24
EP0708033B1 EP0708033B1 (fr) 1998-01-28

Family

ID=6915181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95103635A Expired - Lifetime EP0708033B1 (fr) 1994-10-20 1995-03-14 Récipient d'emballage composé d'un film tubulaire obturé à ses deux extrémités

Country Status (2)

Country Link
EP (1) EP0708033B1 (fr)
DE (2) DE9416978U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011010538A1 (de) * 2011-02-07 2012-10-11 Werner Polzin Einfach Nutzbarar Inhalt(ENI)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997031840A2 (fr) * 1996-03-02 1997-09-04 Sipag Gmbh Verpackung Und Service Cartouche et systeme de cartouche
DE29705488U1 (de) * 1997-03-26 1998-07-23 THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte, 82229 Seefeld Vorrichtung zum Entleeren eines Schlauchbeutels

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR815234A (fr) * 1936-03-17 1937-07-08 R L Des Verreries De Montmirai Nouveau récipient distributeur de matières pâteuses
US2853209A (en) * 1955-01-13 1958-09-23 Phillips Petroleum Co Container
FR2299241A2 (fr) * 1975-01-28 1976-08-27 Alby Albert Cartouche seringue a fond
US5178300A (en) * 1990-06-06 1993-01-12 Shlomo Haviv Fluid dispensing unit with one-way valve outflow

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887253A (en) 1956-11-07 1959-05-19 R C Can Co Slip cover and plunger for cartridge-container
DE3500625A1 (de) 1984-01-11 1985-08-29 Knieriem, Günter, Dipl.-Ing. (FH), 6802 Ladenburg Schlauchbeutel-packung
DE9311227U1 (de) 1993-07-27 1993-09-16 Alcan Deutschland GmbH, 37075 Göttingen Ausdrückkolben für einen hohlzylindrischen Vorratsbehälter aus Aluminium mit deckelseitigem Verschlußteil mit Ausgabeöffnung für stark diffundierende Stoffe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR815234A (fr) * 1936-03-17 1937-07-08 R L Des Verreries De Montmirai Nouveau récipient distributeur de matières pâteuses
US2853209A (en) * 1955-01-13 1958-09-23 Phillips Petroleum Co Container
FR2299241A2 (fr) * 1975-01-28 1976-08-27 Alby Albert Cartouche seringue a fond
US5178300A (en) * 1990-06-06 1993-01-12 Shlomo Haviv Fluid dispensing unit with one-way valve outflow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011010538A1 (de) * 2011-02-07 2012-10-11 Werner Polzin Einfach Nutzbarar Inhalt(ENI)

Also Published As

Publication number Publication date
EP0708033B1 (fr) 1998-01-28
DE9416978U1 (de) 1994-12-15
DE59501362D1 (de) 1998-03-05

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