EP1383686A1 - Contenant - Google Patents

Contenant

Info

Publication number
EP1383686A1
EP1383686A1 EP02723032A EP02723032A EP1383686A1 EP 1383686 A1 EP1383686 A1 EP 1383686A1 EP 02723032 A EP02723032 A EP 02723032A EP 02723032 A EP02723032 A EP 02723032A EP 1383686 A1 EP1383686 A1 EP 1383686A1
Authority
EP
European Patent Office
Prior art keywords
container
gas
connecting portion
filled
duct means
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
EP02723032A
Other languages
German (de)
English (en)
Other versions
EP1383686B1 (fr
Inventor
Äke ROSEN
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.)
Eco Lean Research and Development AS
Original Assignee
Eco Lean Research and Development AS
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 Eco Lean Research and Development AS filed Critical Eco Lean Research and Development AS
Publication of EP1383686A1 publication Critical patent/EP1383686A1/fr
Application granted granted Critical
Publication of EP1383686B1 publication Critical patent/EP1383686B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/008—Stiffening or reinforcing

Definitions

  • the present invention relates to a container of a collapsible type, more specifically such a container comprising a compartment which is defined by flexible walls and whose volume depends on the relative position of the walls, two opposite side walls being joined along a common connecting portion, and a method of producing the same .
  • a container of the type described by way of introduction is known from e.g. W09941155 which discloses a container of a collapsible type comprising three wall portions, of which two form opposite side walls and a third one forms a bottom wall.
  • the walls which are made of a plastic material are flexible and interconnected to form a compartment whose volume depends on the relative position of the walls.
  • the container has a carrying means which is integrated with the connecting portion and com- prises openings to form a handle.
  • a gas- filled duct in the space between the openings of the carrying means and the periphery of the carrying means for the purpose of providing a good handle.
  • a gas-filled duct certainly provides a good, three-dimensional handle but does not contribute to the stiffness or stability of the container.
  • the gas-filled duct rather causes an increased risk of wrinkling.
  • the object of the present invention is to provide an improved container of the known type to impart to the container inherent strength that counteracts upsetting or folding of its connecting portion and side walls.
  • Another object of the invention is to achieve these properties without adding a further amount of material or a material of another type.
  • One more object of the invention is that it should be possible to make the container in existing manufacturing equipment after only minor modifications thereof.
  • a con- tainer comprising a compartment which is defined by flexible walls and whose volume depends on the relative position of the walls, two opposite side walls being joined along a common connecting portion, characterised in that a first gas-filled duct means is arranged in the connecting portion along at least a first side of the container.
  • the first gas-filled duct means forms a kind of backbone in the container which gives stiffness and stability in each side of the container in which the gas-filled duct means is arranged.
  • This counteracts the container losing shape and appearance during transport or careless handling.
  • the risk of notches by wrinkle-related wear is reduced.
  • the inventive container can thus be introduced into existing manufacturing processes with only minor modifications of the manufacturing equipment.
  • the environmental aspects of the container in the form of e.g. environmental influence, recovery or decomposition capability are not affected.
  • the first gas-filled duct means is arranged in the connecting portion also along a second side of the container opposite to the first side.
  • the container will be stiff on two opposite sides, which prevents the problem of upsetting and wrinkling from only being moved to another area of the container.
  • the first gas- filled duct means comprises at least one gap which is arranged in said connecting portion and formed along said side walls and which by introducing a gaseous medium into the same forms a gas-filled duct.
  • the gas-filled duct means is in its simplest form a duct which is formed by a gap which is filled with gas and then sealed.
  • the first duct means By arranging the first duct means in the form of a gap in the con-- necting portion, no new or additional material is added to the container. Moreover, the gap can be formed in connection with the forming of the connecting portion, and therefore modifications of existing manufacturing equip- ment, if any, will be limited to essentially comprising the tool which is used for the forming of the connecting portion.
  • Arranging the first duct means in the form of a gap further means that the container will be completely flat until the gap is filled with gas. This is advantageous in the cases where the container is made at a central location and delivered to local producers which on their own take care of filling the container. This saves space during transport and storage . It is also preferred for the first gas-filled duct means to be continuous along its entire length. This facilitates the filling of the duct arranged in the connecting portion since filling with gas can take place from one direction and by means of one nozzle. Making the first duct means continuous along each side in combination with the arrangement thereof on both sides of the container additionally ensures that any problems with upsetting and folding are not merely moved to another area of the container. It is also preferred for the connecting portion on the first and/or the second side of the container to comprise a carrying means, which accommodates a second gas- filled duct means.
  • a second gas-filled duct means in the carrying means also implies that a handle which is easy to grasp is formed.
  • the first gas- filled duct means is continuous with the second gas- filled duct means and communicates with the same. This means that when the carrying means is grasped, air is pressed out of the second duct means and into the first duct means, which increases the pressure and, thus, the stiffness along the side of the container in which the carrying means is arranged. Consequently, stiffness and stability of the container increase temporarily while being handled, which is most advantageous.
  • the gas-filled duct means are filled with air.
  • the container it is preferred for the container to be made of a material containing a filler of mineral material and a binder of polyolefin material .
  • the mineral material should consist of chalk (calcium carbonate) .
  • Figs la and lb are perspective views of a preferred embodiment of an inventive container in a filled, non- opened state.
  • Fig. 2a is a top plan view of the container shown in Figs la and lb, some parts being removed to illustrate the construction of the container.
  • Fig. 2b is a section III-III through the container according to Fig. 2.
  • Figs 3a-3c show preferred embodiments of a gas- filled duct means.
  • a container 1 according to the invention is shown in an unopened state, filled with liquid contents.
  • the con- tainer 1 is particularly intended for liquid food products such as milk, water, juice or wine.
  • the container 1 is of a collapsible type, i.e. compressible or foldable, and comprises three flexible walls, two of which constitute opposite side walls 2 and the third constitutes a bottom wall 3.
  • the walls 2, 3 are interconnected to form a compartment 4 whose volume depends on the relative position of the walls 2, 3.
  • FIG. 2a a top plan view of the container 1 shown in Figs la and lb is shown with one side wall 2 removed.
  • the walls 2, 3 included in the container 1 are interconnected along a continuous connecting portion 5 which, to facilitate the description, can be divided into partial portions as described below.
  • the two side walls 2 are along the upright sides of the container 1 interconnected along a lateral connecting portion 6.
  • the side walls 2 are also connected with the bottom wall 3 via on the one hand a bottom connecting portion 8 along which each side wall 2 is connected with the bottom wall 3 and, on the other hand, via the lower connecting portion 9 along which all three walls 2, 3 are interconnected (in a common joint) .
  • a section of the bottom area 7 of the container 1 is illus- trated to show how the bottom wall 3 can be arranged relative to the side walls 2.
  • the compartment 4 of the container 1 is thus defined by the side walls 2 and the bottom wall 3.
  • the connecting portion 5 forms boundary lines 10 facing the compartment 4. The joining of the connecting portion 5 preferably takes place by welding.
  • the connecting portion 5 comprises along the sides of the container 1, i.e. the lateral connecting portion 6, a first gas-filled duct means 11.
  • the first gas-filled duct means 11 is arranged in at least a first side 12 of the container 1, but preferably also in the second side 13 of the container 1, opposite to the first side 12.
  • the duct means 11 is in its simplest form a duct.
  • the duct is arranged to follow the boundary line 10 between the compartment 4 and the connecting portion 5 and should be continuous along the entire container side in which it is arranged.
  • a carrying means 14 is arranged in the connecting portion 5.
  • the carrying means 14 is preferably arranged in the upper portion of the container 1 and should constitute part of the connecting portion 5.
  • the carrying means 14 should in prior art manner comprise a first, essentially round opening 15, and a second, essentially elongate opening 15.
  • the carrying means 14 forms a handle which gives the user the possibility of lifting the container 1 using four fingers while at the same time a force-absorbing portion is formed between the openings 15 so that the handle is not wrinkled or deformed in another way.
  • the two openings 15 have an extent which makes an angle of about 25 degrees to a vertical line through the container. Various tests have shown that an angle in the range 20-30 degrees results in good user friendliness.
  • a second gas-filled duct means 16 can according to Fig. 3b be arranged in the outer part of the carrying means 14, i.e. between the openings 15 of the carrying means 14 and the circumference of the carrying means 14.
  • the main purpose of this second duct means 16 is to form a three-dimensional, user-friendly handle. It is also possible, according to Fig. 3c, to join the first duct means 11 with the second duct means 16 to form a common duct means 18. Consequently one and the same duct means can constitute both handle reinforcement and reinforcement along the first side 12 of the con- tainer 1.
  • the latter variant is advantageous by the first side 12 of the container being temporarily reinforced when the user grasps the handle of the container 1 since the air in the second duct means 16 is pressed into the first duct means 11.
  • the stiffness of the container 1 thus increases temporarily while the container 1 is being handled. All gas-filled duct means 11, 16, 18 arranged in the container 1 should be filled with air.
  • the inventive container may comprise an outlet means 17.
  • the outlet means 17 should be arranged at a distance from the bottom area 7 and preferably opposite the same.
  • the outlet means 17 can be used to fill the container 1 with the intended product, after which it is sealed to be opened again by the consumer.
  • the outlet means 17 may comprise a sealing mecha- nism, for instance a screw stopper.
  • At least the first duct means 11 should extend up along the same .
  • An outlet area 19, if any, can be arranged in the connecting portion 5 in the upper portion of the container 1, opposite to the carrying means 14.
  • the purpose of the outlet area 19 is to form a spout through which the contents of the container 1 can be portioned.
  • the outlet area 19 is opened by, for example, separating its outer portion.
  • the duct means 11, 16, 18 are preferably made by forming, in connection with the forming and joining of the connecting portion 5 and the carrying means 14, gaps 20 in the positions where the duct means are desired. This can take place, for example, by arranging recesses, conforming with the shape of the gaps 20, in the forming/joining tool (not shown) which is used for the connecting portion 5 and the carrying means 14. The material of this recess will thus remain unaffected, and therefore gaps 20 are formed between the wall portions 2 included in the connecting portion 5 and the carrying means 14.
  • the gaps 20 should be open or be made openable at one end ⁇ ⁇ t to H c ⁇ o ⁇ o n O en
  • the first gas-filled duct means 11 can be combined with a second gas-filled duct means 16 arranged in the carrying means 14.
  • the two duct means 11, 16 can be continuous and communicate with each other.
  • Providing reinforcement by means of gas-filled ducts is advantageous since a new type of material or a further amount of material need not be added to the container 1. This saves weight as well as cost of material. The possibility of recovering the container 1 is not affected. Moreover, existing manufacturing equipment can be used with only minor modifications.

Abstract

La présente invention se rapporte à un contenant (1) comportant un compartiment (4) qui est défini par des parois souples et dont le volume dépend de la position relative desdites parois, deux parois latérales opposées (2) étant assemblées le long d'une partie de raccordement commune (5). Ce contenant se caractérise en ce qu'un premier conduit (11) rempli de gaz est disposé dans la partie de raccordement (5) le long d'au moins un premier côté (12) du contenant (1). L'invention se rapporte également à un procédé de production d'un tel contenant consistant à former au moins un espace dans lesdites parois latérales (2) lors de la formation de la partie de raccordement (5) et à remplir chaque espace avec du gaz lors du remplissage du contenant (1), chaque espace étant ensuite fermé hermétiquement de manière à former un conduit rempli de gaz (11, 16, 18).
EP02723032A 2001-04-25 2002-04-19 Contenant Expired - Lifetime EP1383686B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0101440 2001-04-25
SE0101440A SE0101440L (sv) 2001-04-25 2001-04-25 Förpackning och sätt att framställa sådan förpackning
PCT/SE2002/000764 WO2002085729A1 (fr) 2001-04-25 2002-04-19 Contenant

Publications (2)

Publication Number Publication Date
EP1383686A1 true EP1383686A1 (fr) 2004-01-28
EP1383686B1 EP1383686B1 (fr) 2005-01-05

Family

ID=20283867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02723032A Expired - Lifetime EP1383686B1 (fr) 2001-04-25 2002-04-19 Contenant

Country Status (17)

Country Link
US (1) US20040035865A1 (fr)
EP (1) EP1383686B1 (fr)
JP (1) JP2004520240A (fr)
KR (1) KR20030023882A (fr)
CN (1) CN1225382C (fr)
AT (1) ATE286477T1 (fr)
BR (1) BR0205098A (fr)
CA (1) CA2411496C (fr)
DE (1) DE60202520T2 (fr)
ES (1) ES2235033T3 (fr)
HU (1) HU228632B1 (fr)
MX (1) MXPA03000067A (fr)
RU (1) RU2285644C2 (fr)
SE (1) SE0101440L (fr)
TW (1) TW508335B (fr)
UA (1) UA74189C2 (fr)
WO (1) WO2002085729A1 (fr)

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Also Published As

Publication number Publication date
DE60202520T2 (de) 2005-12-29
KR20030023882A (ko) 2003-03-20
PL358120A1 (en) 2004-08-09
HU228632B1 (en) 2013-04-29
RU2285644C2 (ru) 2006-10-20
CN1462252A (zh) 2003-12-17
US20040035865A1 (en) 2004-02-26
CA2411496C (fr) 2009-12-22
CN1225382C (zh) 2005-11-02
UA74189C2 (uk) 2005-11-15
EP1383686B1 (fr) 2005-01-05
MXPA03000067A (es) 2004-09-13
CA2411496A1 (fr) 2002-10-31
ES2235033T3 (es) 2005-07-01
SE0101440D0 (sv) 2001-04-25
SE518406C2 (sv) 2002-10-08
WO2002085729A1 (fr) 2002-10-31
DE60202520D1 (de) 2005-02-10
HUP0301328A3 (en) 2004-03-01
ATE286477T1 (de) 2005-01-15
TW508335B (en) 2002-11-01
BR0205098A (pt) 2003-03-18
JP2004520240A (ja) 2004-07-08
HUP0301328A2 (hu) 2003-08-28
SE0101440L (sv) 2002-10-08

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