EP1247755A1 - Vorrichtung zum erleichterten Öffnen von Kunststofffolienbeuteln - Google Patents

Vorrichtung zum erleichterten Öffnen von Kunststofffolienbeuteln Download PDF

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Publication number
EP1247755A1
EP1247755A1 EP02356060A EP02356060A EP1247755A1 EP 1247755 A1 EP1247755 A1 EP 1247755A1 EP 02356060 A EP02356060 A EP 02356060A EP 02356060 A EP02356060 A EP 02356060A EP 1247755 A1 EP1247755 A1 EP 1247755A1
Authority
EP
European Patent Office
Prior art keywords
bag
precut
ring
sleeve
film
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Withdrawn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
EP02356060A
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English (en)
French (fr)
Inventor
Etienne Bogaert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1247755A1 publication Critical patent/EP1247755A1/de
Withdrawn legal-status Critical Current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
    • 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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • B65D75/5838—Tear-lines provided in a wall portion for tearing out a portion of the wall combined with separate fixed tearing means, e.g. tabs

Definitions

  • the present invention relates to a device for facilitating the opening of plastic bags, with or without bellows, having a pre-cut for the opening.
  • the invention also relates to a bag provided with such a device and to a method manufacturing such a bag.
  • the device according to the invention overcomes this drawback.
  • a first characteristic it includes a modification in the bag design. It consists in incorporating at least one grip ring in the manufacturing from the bag, at a place near or near the precut.
  • the proximity of the ring grip and pre-cut is a function of both the fragility of the pre-cut and the weight of the contents of the bag.
  • the ring (s) can be formed by one or more sleeves projecting from the bag, these sleeves forming receiving volumes from a user's fingers.
  • the ring (s) can also be present in the form of two materialized locations to make two finger holes in the wall of the bag, the periphery of these locations may possibly have been precut.
  • the ring (s) offer grips for pulling on the plastic film, tearing the precut and open the bag.
  • the grip ring (s) can be an integral part of the wall of the bag or can be attached to this wall.
  • the ring has a dimension that allows the minimum to slide a finger when it is on one side of the pre-cut, to slide two fingers when this is on each side of the precut. Then it’s easy to shoot for yield the precut. These processes prevent slipping and increase the tensile force by a lever phenomenon, exerted with the handle. The other hand is free to hold back the bag.
  • the gripping means make it possible to take the bag to transport it.
  • FIGS 1 to 6 show, in perspective, brick bags according to the invention.
  • FIG. 7 represents, in perspective, a bag conforming to the invention with "OPTIMA" handle.
  • Figure 8 shows, in front view, a flat bag.
  • Figure 9 is a schematic representation of a first step in manufacturing the bag in Figure 1.
  • Figure 10 is a view similar to Figure 9 during a second manufacturing step.
  • Figure 11 is a view similar to Figure 9, during a third manufacturing step.
  • Figure 12 is a view similar to Figure 9, during a fourth manufacturing step.
  • Figure 13 is a view similar to Figure 9 amount a first step in another method of manufacturing a bag according to FIG. 1 and
  • Figure 14 is a view similar to Figure 13, when a next step in the manufacturing process.
  • Figure 1 shows, in perspective, a bag S said brick ”, solid, with a bottom gusset.
  • a gripper, to open the precut is in the form of rings in two parts 1A. It is part of the constituent film from the bag. It could also be added in the longitudinal weld 3A, in the middle of the bellows, on the top of the filled bag.
  • the gripping organ is on both sides of the precut 2A. It is traced on the main faces of the bag and on top. On the main faces, the precut is vertical.
  • the ring 1A is formed in a sleeve M of overall cylindrical shape and has a generally circular section.
  • the longitudinal axis of the sleeve M is generally parallel to the face 4A of the bag near which is mounted the sleeve M.
  • the sleeve M can be formed by a fold of the constituent plastic film of the bag S, the major part of which corresponds to the parts on the left and on the right of the sleeve M in FIG. 1, has been removed so that the sleeve M can only be replaced on either side of the precut line 2A.
  • the sleeve M is thus incorporated into the film constituting the bag S.
  • the sleeve M is divided into two unitary rings 11A and 11'A which are separated by an auxiliary cutting line 12A.
  • a notch 13A is also provided in the sleeve M and allows the interior volume of each of the unit rings 11A and 11A. It is thus possible for a user introducing two fingers by the two opposite openings of the sleeve M to bring them out through the opening 13A and to exert a tensile force aimed at spreading the unitary rings 11A and 11'A, which has for effect of tearing the precuts 12A then 2A.
  • Figure 2 shows, in perspective, a bag S said "Brick", solid, with a bottom gusset.
  • a gripper to open the precut, is in the form of a ring in part 1B. It is formed by an incorporated sleeve M or added in the longitudinal weld 3B, in the middle of the bellows, on the upper part of the filled bag.
  • the gripping member is located on one side of the pre-cut 2B. She is traced on the main faces of the bag and on the top. On the main faces, the precut is vertical.
  • Figure 3 shows in perspective a bag called "brick", full, with a bottom gusset.
  • a gripper to open the precut, presents itself in the form of a one-part ring 1C. It is formed by an incorporated sleeve M or added in the side seam 3C which is on one side of the bag.
  • the gripping organ is on one side of the 2C precut. It is traced on the main faces of the bag and on the side. On the main faces, the precut is vertical.
  • Figure 4 shows in perspective a bag S said "Brick", solid, with a bottom gusset.
  • a gripper to open the precut comes in the form of a 1D ring, in two parts 11D and 11'D, formed by a sleeve M which is incorporated or added in the 3D side weld which is on the side of the bag S.
  • the gripping member is located on either side of the 2D precut and is provided an auxiliary precut line 12D. On the main faces, the precut is horizontal.
  • the sleeve is provided with an opening 13D for exit from the fingers of a user.
  • the sleeves M of the second, third and fourth modes of realization have their respective longitudinal axes X-X 'parallel to the faces of the bags S against which they are affixed.
  • the axes X-X ' are parallel to the welds 3A, 3B, 3C and 3D at the level of which the sleeves M are connected to the faces considered of the bags S.
  • M sleeve sections allow insertion one or two fingers of a user in the rings they constitute.
  • Figure 5 shows, in perspective, a bag S said "Brick", solid, with a bottom gusset.
  • the gripper to open the precut of the bag is in the form of two rings 1E formed by materialized locations the periphery of which may have been precut, as shown by the precut lines auxiliary 13E.
  • the 1E gripping rings are located on either side of the pre-cut 2E.
  • the precut is traced on the main faces of the bag and on the top. On the faces main, the precut is vertical.
  • Figure 6 shows a front view of a bag S, provided a band B, with or without a hem, in which is provided a carrying handle P.
  • a 2F pre-cut line is provided on two opposite walls of the S bag and extends into the strip B.
  • These gripping rings can receive a reinforcement.
  • Figure 7 shows in perspective a bag S full to bottom gusset, supplemented by a 4H “Optima handle” in transparent film.
  • An organ of grip to open the 2H pre-cut of the bag is in the form of a 1H ring. She is incorporated or added in the 3H longitudinal weld in the middle of the bellows on the upper part of the filled bag.
  • the pre-cut is traced on one side of the bag and on the bellows of background.
  • the ring is formed by a sleeve M as in the first embodiment.
  • Figure 8 shows a front view of an empty bag, said "Flat” without bellows with a gripping ring 1J formed in an eyelet O which is part integral of the bag S or is added in one of the 3J welds.
  • the 2J pre-cut is horizontal.
  • the gripping ring may or may not be provided with a precut enabling it to be separated into two parts, this precut, called the gripping member, interfering with the opening precut.
  • the gripping member may be in the form of two locations forming a ring and delimited by precuts and located on either side of the precut, to make two finger holes in the wall of the bag, which constitute the at least the gripping member.
  • precut not only a dotted or dashed cut, but also any line of weakening of the resistance of the wall of the bag or the welds, such as for example a reduction in the thickness of the wall, or again gluing with a low resistance glue, or presence of plastic material peelable (peelable PE).
  • peelable PE plastic material peelable
  • the sleeves M in which the rings of the invention are formed can be cut with a particular shape in agreement with a decorative motif provided on the bag.
  • the sleeves M can also be printed to better integrate with the decor provided on the bag.
  • the rings of the fifth, sixth and eighth mode of realization can also be changed in their geometry and are not necessarily with strictly circular sections.
  • a ring as a gripping member, allows to exercise thanks to it an intense effort to tear the precut, then that such a ring has dimensions adapted to receive one or two fingers of a user and does not protrude too far from the side walls of the bag that it team.
  • Such a ring is particularly easy to use since it suffices for the user to insert one or more fingers inside it, unlike less practical materials such as handles.
  • the sleeve M of a bag S can be an integral part of the film constituting this bag.
  • a sheet of flat film 1 is unwound from a reel not shown and folded along of a fold line 2.
  • a weld 3 is formed over the entire length of the strip 1 to a few centimeters from the fold line 2, so that a continuous sleeve 4 is formed which extends over the entire length of the strip 1.
  • the strip 1 thus cut is also provided with marks 5 allowing to control its advance thanks to an optical reading system.
  • the strip 1 is then routed to a conformator in which is formed a bellows 6, as shown in Figure 11, the different sleeves or rings M then being inside the bellows.
  • the strip 1 is then flattened out and precuts 7 are made on the two thicknesses of the strip 1, each sleeve or ring M being crossed by a line 7.
  • the strip 1 is sectioned at regular intervals along parallel edges 8 perpendicular to the direction of advance F 1 , so that the bags S are successively formed.
  • the cutting is carried out by a heating blade which makes the material flow on the sides and weakens the film. While the plalstic is in fusion, the part intended to constitute a bag S is moved by traction. After cooling, the heated edges 8 become welds.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP02356060A 2001-04-03 2002-04-02 Vorrichtung zum erleichterten Öffnen von Kunststofffolienbeuteln Withdrawn EP1247755A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0104486A FR2822805B1 (fr) 2001-04-03 2001-04-03 Disposition pour faciliter l'ouverture des sacs en film de matiere plastique
FR0104486 2001-04-03

Publications (1)

Publication Number Publication Date
EP1247755A1 true EP1247755A1 (de) 2002-10-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02356060A Withdrawn EP1247755A1 (de) 2001-04-03 2002-04-02 Vorrichtung zum erleichterten Öffnen von Kunststofffolienbeuteln

Country Status (2)

Country Link
EP (1) EP1247755A1 (de)
FR (1) FR2822805B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427245A (en) 1991-04-11 1995-06-27 Peaudouce Opening device for a bag made from flexible material and packaging compressible products
US5666445A (en) 1992-02-27 1997-09-09 Conrad; Daniel J. Easy opening flexible plastic bag and a method of making same
EP1110877A1 (de) * 1999-12-24 2001-06-27 Etablissements Moreau André & Cie Verpackungsbeutel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664263A (en) * 1985-06-24 1987-05-12 Minnesota Mining And Manufacturing Company Divisible tape tab for opening a container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427245A (en) 1991-04-11 1995-06-27 Peaudouce Opening device for a bag made from flexible material and packaging compressible products
US5666445A (en) 1992-02-27 1997-09-09 Conrad; Daniel J. Easy opening flexible plastic bag and a method of making same
EP1110877A1 (de) * 1999-12-24 2001-06-27 Etablissements Moreau André & Cie Verpackungsbeutel

Also Published As

Publication number Publication date
FR2822805A1 (fr) 2002-10-04
FR2822805B1 (fr) 2003-08-15

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