EP1000559B1 - Beutel mit durch einen Schieber betätigten Verschlussprofilen - Google Patents

Beutel mit durch einen Schieber betätigten Verschlussprofilen Download PDF

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Publication number
EP1000559B1
EP1000559B1 EP99402702A EP99402702A EP1000559B1 EP 1000559 B1 EP1000559 B1 EP 1000559B1 EP 99402702 A EP99402702 A EP 99402702A EP 99402702 A EP99402702 A EP 99402702A EP 1000559 B1 EP1000559 B1 EP 1000559B1
Authority
EP
European Patent Office
Prior art keywords
bag
fact
bag according
cursor
leakproofing
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.)
Expired - Lifetime
Application number
EP99402702A
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English (en)
French (fr)
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EP1000559A2 (de
EP1000559A3 (de
Inventor
Henri Georges Bois
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S2F Flexico SARL
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S2F Flexico SARL
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Publication date
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Publication of EP1000559A2 publication Critical patent/EP1000559A2/de
Publication of EP1000559A3 publication Critical patent/EP1000559A3/de
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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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/26—Sliders
    • A44B19/267—Sliders for slide fasteners with edges of stringers having uniform section throughout the length thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/25—Zipper or required component thereof
    • Y10T24/2532—Zipper or required component thereof having interlocking surface with continuous cross section

Definitions

  • the present invention relates to the field of sachets comprising complementary closure profiles actuated respectively on opening and closing by a cursor.
  • the sliders comprise two lateral wings interconnected at a base and defining, with an elongated central sole placed between the closure profiles, two convergent passageways for the complementary interlocking closure profiles.
  • the sliders facilitate the opening and closing of the bags.
  • the presence of a cursor is particularly appreciated by the elderly or visually impaired.
  • Sealing is nevertheless required in many applications, including but not limited to the bags used for freezing food products.
  • the means proposed in this context are very complex. They do not always allow a perfect tightness of the bags. In addition, they have the major disadvantage of not holding the cursor perfectly and consequently of causing for example a risk that the cursor is ingested by young children.
  • the document FR-A-2761956 discloses a bag having complementary slider-actuated closing profiles, which comprises means adapted to provide a seal between the inner walls of the bag, in the closed position thereof, in the area of the bag underlying the profiles at the level of the end thereof receiving the cursor in the closed position.
  • the document FR-A-2761956 describes different embodiments. According to a first embodiment, the means ensuring the seal are formed by a weld between the inner walls of the bag, in the area underlying the profiles at the end thereof receiving the slider in the closed position. According to a second embodiment, the means ensuring the seal are formed by a boss between the inner walls of the bag, in the area underlying the profiles at the end thereof receiving the slider in the closed position.
  • the means ensuring the seal are formed by pinching means provided on the slider, adapted to clamp the area underlying the profiles at the end thereof receiving the slider in position closed.
  • the means ensuring the seal are formed by a closure or baffle located under a first closure adjacent to the mouth of the bag and closing by the action of the cursor, the end corresponding to the cursor in closed position, the second closure or baffle being probed to seal.
  • the main object of the present invention is to provide pouches having a greater seal than previous known bags.
  • Another object of the present invention is to provide means limiting the risk of inadvertent withdrawal of the cursor, in particular to limit the risk of ingestion by young children.
  • Another object of the present invention is to provide means for a high rate of productivity in automatic.
  • FIGS. 1 to 3 diagrammatically show a bag 10 whose mouth is referenced 12 and the bottom 14.
  • the bag 10 is composed of two main sheets 16, 18. These are interconnected at the bottom 14 (by folding, the two sheets 16, 18 being integral with the origin as shown in Figures 1 to 3, or by welding or gluing, the two sheets 16, 18 being initially separated and superimposed on the production as illustrated in FIGS. 9 to 14, or else by welding or gluing the edges of a single sheet folded on itself at the level of the mouth, as illustrated for example in Figures 15 and 16), and at the two side edges perpendicular to the bottom 14 and the mouth 12 (the connection at the side edges is preferably provided by welding or gluing) .
  • the two sheets 16, 18 are provided with complementary closure profiles 20, 22.
  • the invention applies to closing profiles 20, 22 of male and female type, respectively, as is well known to those skilled in the art and as shown schematically in FIGS. 1 to 8 and 17 and following.
  • the invention is not limited to this particular arrangement and can also extend for example to hook-type closing profiles 20, 22 as illustrated in FIGS. 9 to 16.
  • the complementary closure profiles 20, 22 may have come extrusion on the sheets 16, 18 composing the bag (more precisely on the inner surface of these sheets 16, 18 according to the embodiments of Figures 1 to 6 and 8 to 12 and on the outer surface of these sheets according to the mode embodiment of Figure 15 when the sheets 16, 18 form, at the mouth of the bag, a bellow folded towards the inside of the bag to form a control veil opening).
  • the closure profiles 20, 22 may initially be formed on respective support webs 21, 23 attached to the sheets 16, 18, at the mouth 12 of the bag, as has been described.
  • the support webs 21, 23 are fixed on the inner surface of the sheets 16, 18.
  • the sheets 16, 18 forming, at the mouth of the bag, a bellow folded towards the inside of the bag to form a control veil of opening, the support webs 21, 23 are fixed on the outer surface of the sheets 16, 18.
  • connection between the webs 21, 23 and the films 16, 18 can be achieved by any suitable conventional means, for example by hot welding or gluing.
  • closure profiles not extruded on the films 16, 18, but reported by welding or gluing is only illustrated in the accompanying drawings in FIGS. 7, 13, 14 and 16.
  • closure profiles 20, 22 reported on the films 16, 18 can be applied to all of the embodiments according to the invention.
  • the bag further comprises a slider 50 whose role is to facilitate the openings and closures of the bag, by separation, respectively approximation, closure profiles, when the cursor is moved in translation at the level of the mouth of the bag.
  • the cursor 50 can be the subject of many embodiments.
  • the cursor 50 can be in particular in accordance with the general provisions described in the document EP-A-0479661 .
  • the slider 50 made of plastic material, comprises two lateral wings 52, 54 (or “flanks") connected to each other at a base 56 and which define with an elongate central soleplate 59, two passageways 590, 592 convergent for the interlocking complementary closure profiles 20, 22.
  • the bag is closed.
  • the cursor 50 is moved in the opposite direction, the bag is opened.
  • the soleplate 59 is interrupted within (that is to say recessed) the longitudinal end of the slider, at least on the widest side of the slider corresponding to the diverging side of the corridors 590, 592, as seen in particular in Figures 1, 3, 4 and 5, and the lateral wings 52, 54 are provided in the vicinity of their free edge opposite the base 56, means 520, 540 for biasing the sheets 16, 18 of the bag in approach, covering the entire longitudinal extent of the soleplate 59 and extending beyond longitudinally on either side thereof, to ensure the sealing of the bag in position closed of it.
  • these biasing means are composed of ribs 520, 540 projecting towards the inside of the slider 50, at the edge of the wings 52, 54 opposite the base 56 , or where appropriate on a part of the height of the inner surface of these wings 52, 54 between the free edge of the wings 52, 54 and the base 56. Note that if the ribs 520, 540 are not located necessarily at the free edge of the lateral wings 52, 54, these ribs 520, 540 are, however, located below the soleplate 59 (that is to say between the top of the soleplate 59, opposite the base 56, and the free edge of the wings 52, 54), and not up to it.
  • ribs 520, 540 continuously cover the sole 59 and extend beyond it, at least at the widest end of the sole 59 corresponding to the diverging side of the passages 590, 592. More specifically still according to the preferred embodiment illustrated in the accompanying figures, the ribs 520, 540 extend over the entire length of the slider 50, while the sole 59 is interrupted, at its widest end (diverging side of the corridors 590, 592), at a distance I1 from the end of the slider 50, and at its thinnest end (convergent side of the corridors 590, 592) at a distance I2 from the end of the slider 50.
  • the width I6 of the free space defined between the vertices of the ribs 520, 540 is substantially equal to the sum of the thicknesses of the sheets 16, 18, at the mouth of the bags.
  • the slider 50 biases the sheets in proximity, below the soleplate 59, and ensures the sealing of the bag.
  • ribs 520, 540 symmetrical and the same height, one on each of the wings 52, 54.
  • additional relief means 100 secured to the bag designed to ensure sealing by forming a dam between the sheets 16, 18, in the closed position of the bag, said additional relief means 100 being placed facing the flanks 52, 54 of the slider 50 to be urged towards their sealing position by the slider 50 when it is moved to the sealing position.
  • the films 16, 18, the closure profiles 20, 22 and the additional sealing means 100 may be made of any suitable plastic material known to those skilled in the art.
  • it is polyolefin, very advantageously low or high density polyethylene, or even polypropylene.
  • the means 100 are arranged on the inside of the closure profiles 20, 22 (at say inwardly of the bags with respect to these closure profiles 20, 22) and extend over the entire length of the bags (ie they have the same length as the closure profiles 20, 22) .
  • said additional sealing means 100 are formed of a bead 102 parallel to the section 20 and secured to one of the sheets 16. According to Figure 6 this bead 102 has come from extrusion on the film 16. Alternatively, however, as mentioned above, the bead 102 could have come from extrusion on a support veil attached to this film 16.
  • Such a bead 102 is placed opposite the flanks 52, 54 of the slider 50 and on the inside thereof. Thus the bead 102 is urged against the opposite film 18 when the slider 50 is moved to the closed position.
  • the geometry of the profiles 20, 22, means 100 and the slider 50 is such that the flanks 52, 54 of the slider 50 impose on the means 100, a transverse clearance (ie perpendicular to the sheets 16, 18) lower than that tolerated for the closure profiles 20, 22.
  • the thickness L1 of the means 100 is greater than that L2 defined by the closure profiles 20, 22 when they are engaged.
  • the sealing means 100 are formed of two beads 104, 106 secured respectively to the two films 16 and 18 and placed in contact to come into contact with their apex to form a watertight barrier, when they are solicited by the flanks 52, 54 of the slider 50.
  • the two beads 104, 106 are symmetrical. However, alternatively, one can provide seals 104, 106 asymmetrical.
  • the sealing means 100 are formed of complementary elements 110, 112 male / female secured respectively to the inner surface of the two sheets 16, 18 of the bag. More precisely still according to FIG. 8, the female element 112 is formed of two lips 1120 and 1122 adapted to rest respectively on the flanks of the male element 110. According to FIG. 8, the two lips 1120, 1122 are symmetrical. However, alternatively, two asymmetrical lips 1120, 1122 can be provided. Moreover, the element mixing 110 is globally rounded.
  • the sealing means 100 illustrated in FIG. 9 are identical to those of FIG. 8. However, it will be noted that according to FIG. 9, the slider 50 has bosses 520, 540 placed on the internal surface of its flanks 52, 54. means 100 to ensure the solicitation of the latter in sealing position, when closing the bag.
  • the geometry of such bosses 520, 540 can be many variations. Alternatively one can provide such bosses on the outer surface of the walls 16, 18, facing the slider, or such bosses on the walls of the bag and other bosses facing the slider 50.
  • FIG. 10 illustrates another variant embodiment in which the male element 110 has a substantially triangular section. Thanks to this structure, it is ensured that the contact between the flanks of the male element 110 and the lips 1120 and 1122 is reinforced when the male and female elements 110 and 112 are urged closer by the slider 50.
  • the two lips 1120 and 1122 of the female element 112 are asymmetrical.
  • the lip 1120 located inwardly of the bag relative to the male member 110 is longer and more flexible than the second lip 1122 located towards the outside of the bag.
  • the internal pressure of the sachet even optionally directly the contents thereof, such as a liquid content, biases the first lip 1120 elastically against the male element 110.
  • By against the second lip 1122 resists such a force and therefore does not deviate from the male element 110.
  • the means 100 can be extruded onto the sheets 16, 18 composing the bag (more precisely on the inner surface of these sheets 16, 18 according to the embodiments of FIGS. 11 and on the outer surface of these sheets according to the embodiment of Figure 15 when the sheets 16, 18 form, at the mouth of the bag, a bellow folded towards the inside of the bag to form a control veil opening ).
  • the means 100 may initially be formed on respective support webs 121, 123 attached to the sheets 16, 18, at the mouth 12 of the bag, as illustrated in the figures. 12 to 14 and 1. Again it will be noted that according to FIGS. 12 to 14, the support webs 121, 123 are fixed on the inner surface of the sheets 16, 18. On the other hand, according to FIG. 16, the sheets 16, 18 forming the mouth of the bag, a bellow folded towards the inside of the bag to form a control veil of opening, the support webs 121, 123 are fixed on the outer surface of the sheets 16, 18.
  • the support webs 121 and 123 may respectively be merged with the support webs 21 and 23 of the closure profiles 20, 22.
  • connection between the webs 121, 123 and the films 16, 18 can be achieved by any suitable conventional means, for example by hot welding or gluing.
  • FIG. 11 illustrates an alternative embodiment according to which on the one hand there are notches 160, 180 which open on the outer surface of the bag, respectively opposite the means 100, in this case respectively facing the female element 112 and the male element 110, and secondly ribs 522 and 542 projecting from the surface internal flanks 52 and 54 of the slider 50, which ribs 522 and 542 are adapted to penetrate respectively in said notches 160 and 180.
  • ribs 522 and 542 and complementary notches 160, 180 are only illustrated in the accompanying drawings in FIG. 11. However, the use of such ribs 522 and 542 and complementary notches 160, 180 may apply to all embodiments of the invention.
  • Figure 13 has been previously described. It differs essentially from the embodiments illustrated in the previous figures in that the means 100 are carried by respective support webs 121, 123 coinciding with the support webs 21 and 23 of the profiles 20, 22 and reported on the sheets 16 and 18, as indicated previously.
  • the support webs 121, 21 and 123, 23 are interconnected by a loop 24. This is arranged on the inside the means 100 and has its concavity directed towards the outside of the bag.
  • these support webs 121, 21, 123, 23 and 24 form an anti-violation veil or opening indicator at the mouth 12. It is indeed necessary to break this veil 24 before accessing the interior of the bag.
  • This anti-violation veil 24 is formed of a bellow folded towards the inside of the bag, at the mouth 12 in the continuity of the support webs 121, 21 and 123, 23.
  • FIGS. 15 and 16 show variant embodiments according to which such an anti-violation or opening control pad, referenced 19, is formed by a fold in the film constituting the main sheets 16, 18 of the bag.
  • the profiles 20, 22 and the means 100 are molded on this film.
  • the profiles 20, 22 and the means 100 are carried by support webs 121, 21 and 123, 23 attached to the film.
  • Such bellows 19 directed towards the inside of the bag may be shaped by any appropriate known means, for example by means of a blade urging the bellows 19 inwardly between the sheets 16, 18, as is well known. of the man of the art.
  • condition of the veil 24 or 19 makes it possible to indicate whether an intervention has taken place or not on the bag 10.
  • the cooperation defined between the notches 160, 180 and the ribs 522, 542 of the sliders 50 makes it possible to avoid any inadvertent withdrawal sliders 50 under the effect of the pressure inside the bags or under the effect of a request by a user.
  • the bags according to the present invention can be made on any type of known and appropriate machines, especially on FFS type machines (Form, Fill and Seal), that is to say machines designed to perform automatically forming operations, filling and closing sachets.
  • FFS type machines Form, Fill and Seal
  • the present invention applies equally well to implementations according to which the closure profiles are arranged longitudinally with reference to the running direction of the film, and to implementations according to which the closure profiles are arranged transversely.
  • the present invention applies equally well to implementations according to which, the closure profiles are pre-equipped with the cursor when they are conveyed on the bag-forming machine, and with implementations according to which the cursor is later disposed on the profiles.
  • the present invention is not limited to the geometry of the notches 160, 180 and ribs 522, 542 illustrated in Figure 11 attached. Indeed, these notches 160, 180 and ribs 522, 542 can be the subject of many variants as to their cross section. Thus, for example, it is conceivable to give the notches 522, 542 a cross-section with convergent edges, for example in dovetail or rail-shaped (for example T or others). Such an arrangement enhances the maintenance of the cursor 50 on the bags.
  • the sealing means 100 as well as the closure profiles 20, 22 extend over the entire width of the bag.
  • the cursor 50 extends only over a limited area of this width. Therefore, the slider 50 can not alone solicit the sealing means 100 permanently over their entire length.
  • the means 100 can be envisaged to give the means 100 a thickness L1 greater than that L2 of the closure profiles 20, 22.
  • the closure profiles 20, 22 are adapted to automatically provide such a bias P means 100 when the bag is closed.
  • an asymmetrical female profile may for example be provided, in particular such that L3 is less than L4, that is to say that the height or bulk L3 of the element 220 defining the inner lip of the female profile 22 is less than the height or space L4 of the element 222 defining the outer lip of the female profile 22.
  • the internal element 220 of the female profile 22 induces a stress on the sealing means 100 in the closed state of the bag, that is to say when the 'element male 20 is engaged with the female element 22 and the entire length of the means 100.
  • This arrangement makes it possible to ensure the same constraint over the entire length of the means 100.
  • FIG. 17 illustrates an alternative embodiment according to which the two elements 104, 106 integral respectively with the internal surface of the sheets 16, 18 are not positioned to bear against their apex, as indicated previously with reference to FIG. 7, but are positioned to be juxtaposed and come to bear at their adjacent flanks opposite 103, 105 generally perpendicular to the sheets 16 and 18.
  • the slider 50 is provided on the ends of its lateral flanges 52, 54, returns 53, 55 respectively directed towards the inside of the bag. These returns 53, 55 are positioned to be located beyond the sealing means 100. On the one hand these returns 53, 55 participate in sealing the bag. On the other hand these returns 53, 55 participate in maintaining the cursor 50 on the bags to prohibit an inadvertent withdrawal of the cursor. As can be seen in FIG. 17, these returns 53, 55 urge the sheets 16, 18 closer together, beyond the sealing means 100.
  • the portions of support films 16, 18 situated opposite closure profiles 20, 22 and sealing means 100 have a greater thickness at the thickness of rest of the film composing the bag.
  • This extra thickness of the support films 16, 18 to the right of the slider 50 keeps the means 100 in their sealing position when the bag is in the closed position.
  • Such a localized excess thickness of the films 16, 18 may be obtained in the form of an excess thickness formed during the extrusion of the film or may result from the attachment of support webs of the closure profiles 20, 22 or means 100, as indicated above. .
  • FIG. 18 illustrates another variant embodiment in which the two elements 104, 106 integral respectively with the inner surface of the sheets 16, 18 are provided at their apices with a respective wing 1040, 1060 orthogonal to said elements.
  • said wings 1040, 1060 extend generally parallel to the sheets 16, 18.
  • the elements 104, 106 are supported at their apex by means of these wings 1040, 1060.
  • said wings 1040, 1060 are directed towards the inside of the bag.
  • the wings 1040, 1060 are instead directed towards the outside of the bag.
  • the elements 104, 106 provided with wings 1040, 1060 have the general shape of a T.
  • FIG. 19 illustrates an alternative embodiment of FIG. 17 in which at least one of the two juxtaposed elements 104, 106 is provided at its top with an orthogonal wing 1060. This is intended to rest against the inner face of the opposite sheet 16 to complete the seal. According to FIG. 19, there is shown such a wing 1060 on only one of the elements 106. In a variant, however, it is possible to provide such an additional wing intended to rest against the inner face of the opposite sheet, on the top of the two elements 104. , 106.
  • FIG. 20 shows another variant embodiment of FIG. 17 in which the two juxtaposed elements 104, 106 are provided at their apices with a rounded protrusion 1042, 1062. This is intended to rest against the internal face of sheet 16, 18opposite to complete the seal.
  • such an outgrowth is provided on the two elements 104, 106.
  • such an outgrowth 1042, 1062 can be provided on a single element 104, 106.
  • these excrescences have a circular cross section. and are symmetrical with respect to the median plane of the elements 104, 106.
  • the invention is not limited to this particular geometry.
  • FIG. 21 illustrates an alternative embodiment of FIG. 18 in which the slider 50 is further provided at the ends of each of the returns 53, 55 with an additional wing 530, 550 directed towards the base 56 of the cursor 50, that is to say towards the outside of the bag.
  • These wings 530, 550 are thus oriented generally parallel to the lateral wings 52, 54 of the slider 50.
  • These additional wings 530, 550 are designed to assume a position in the volume defined between the sheets 16, 18 and 1040, 1060 of the means. Sealing 100. It is understood from the examination of FIG. 21 that these wings 530, 550 provide a corrugation on the sheets 16, 18 that can further enhance the tightness of the bags obtained.
  • the slider 50 has a symmetry with respect to a longitudinal plane.
  • each of the flanks 52, 54 is provided with a return 53, 55.
  • the slider has an asymmetry in the sense that only one of the flanks 52 is provided with such a return 53 directed towards the inside of the bag.
  • FIG. 23 illustrates an alternative embodiment of FIG. 22 in which this return 53 is provided on its inner surface with a boss 532 directed towards the base 56 to urge the two juxtaposed elements 104, 106 supported by through their adjacent flanks 103, 105.
  • the boss 532 exerts on the element 104 a bias directed towards the base 56.
  • FIG. 24 shows another variant embodiment in which the support film portions 16, 18 carrying the closing profiles 20, 22 and the sealing means 100 are not situated in the direct extension of the sheets making up the body. of the bag, but are shifted towards the outside of the bag at the level of respective recesses 1600, 1800. These recesses 1600, 1800 can be obtained by extrusion during the manufacture of the film or be obtained later by folding the film.
  • FIG. 24 shows that such recesses 1600, 1800 facilitate the juxtaposition of the sheets 16, 18 at the exit of the slider 50, although the sheets 16, 18 are necessarily separated, within the slider because of the presence of closure profiles 20, 22 and means 100.
  • one of the recesses 1800 may itself be provided with an extension 1802 directed towards the opposite support sheet 16.
  • This extension 1802 is designed to rest against the recess 1600 opposite to further strengthen the tightness of the bags obtained.
  • FIG. 25 illustrates an alternative embodiment in which a projection 530 or return towards the inside of the cursor on the single return 53 is provided on the one hand and on the other hand an element 106 projecting from the sheet 18
  • the boss 530 imposes a curvature or labyrinth path to the second sheet 16 at the exit of the slider 50, again making it possible to reinforce the tightness of the bag obtained.
  • FIG. 26 illustrates an alternative embodiment of FIG. 17 in which at least one of the two elements 104 or 106 has an increasing thickness in the direction of its vertex or has an inclined flank so that it exerts an force on the other element 106 or 104 juxtaposed, in the closed position of the bag.
  • FIGS. 27 and following illustrate variant embodiments according to which the sealing means 100 are formed essentially of flexible and elastic structures, to be deformable when the bag is closed, whereas according to the representations given in FIGS. at 26, the means 100 are essentially rigid.
  • FIG. 27 thus illustrates a variant embodiment according to which the sealing means 100 comprise a curved, flexible and elastic lip 130 integral with the sheet 18 carrying the female closure profile 22.
  • such a flexible and elastic lip 130 could be integral with the sheet 16 which carries the male closure profile 20.
  • the lip 130 is formed of a cylinder sector whose central angle is greater than 180 °. According to Figure 27, the concavity of the lip 130 is directed towards the inside of the bag. Alternatively, however, it could be provided that the concavity of the lip 130 is directed towards the outside of the bag.
  • FIG. 29 illustrates an alternative embodiment of FIG. 27 in which the location of the lip 130 and the geometry of this lip 130 are such that said lip 130, when it rests on the opposite sheet 16, receives a reaction. which urges it itself in support against one of the closure profiles, in this case the female closure profile 22.
  • FIG. 30 illustrates another embodiment in which such a biasing of the lip 130 bearing against the female closure element 22 is reinforced by the presence on the inner surface of the flanks 52, 54 of the boss slider 50. 520, 540.
  • these bosses 520, 540 have a triangular general profile.
  • these bosses 520, 540 are not limited to this geometry and can be the subject of many variants.
  • FIG. 31 shows a side view of a bag thus equipped. 26 a slider 50 having such stressing bosses 520, 540, as well as the closing profiles 20, 22 and the sealing means 100. It will be noted on examining FIG. preferably the bosses 520, 540 extend only over a portion of the length of the slider 50 and also converge towards the upper base 56 of the slider 50 towards the end of the slider 50 located on the opening side of the bag. With this arrangement, the bosses 520, 540 urge the lip 130 bearing against the closure profile 22, near the opening zone of the bag.
  • the returns 53, 55 provided on the wings 52, 54 of the slider 50 can converge towards the base 56 towards the end of the slider 50 located on the side of the opening of the bag, to improve the tightness of the bag. at this level.
  • FIG. 32 illustrates another variant embodiment in which each of the two sheets 16, 18 is provided on its inner surface with an elastic lip 130 in the cylinder sector. These two lips 130 are thus supported by their top when closing the bag.
  • At rest that is to say in the open position, at least one of the two lips 130 preferably extends beyond the associated closure profile, as shown schematically in FIG. 33.
  • the slider 50 used in the context of the variant embodiment of FIG. 32 may also include upwardly-pressing bosses 520, 540, as illustrated in FIG. 31, for biasing these elastic lips 130 against the closure profiles 20, 22, in the closed position of the bag.
  • FIG. 34 illustrates another variant embodiment in which each of the two support films 16, 18 is provided with an elastic lip 130, but however these are positioned not to bear against their top, but to be side juxtaposed as seen in Figure 34.
  • the two lips 130 each formed of a cylinder sector having an angle at the center greater than 180 ° have their concavity directed respectively inwardly and outwardly of the bag.
  • the bag comprises on its mouth 12, means 150 located opposite said additional sealing means 100, with respect to the closure profiles 20, 22, and these means 150. are adapted to define a support between the opposite internal faces of the walls of the bag.
  • means are provided capable of urging the walls of the bag inwards into an area of these walls between the additional sealing means 100 and the bearing means 150. that said additional means 100 are urged in a sealing position by the slider 50.
  • this bias is made to the right of the closure profiles 20 and 22.
  • the additional sealing means 100 are located on the inside of the closure profiles 20, 22, while the means 150 defining the support are located on the outside of the profiles. closure 20, 22.
  • This arrangement comprising means 150 associated with means for biasing the sealing means 100 by the slider 50 can be applied to all of the previously described embodiments. It is therefore not limited to the embodiments of Figures 30 to 39. In particular this provision applies to any type of sealing means 100, to any type of closure profiles 20, 22 and all cursor variants 50 or sachet equipped with an antiviolating veil, etc ...
  • FIG. 35 illustrates a variant according to which the additional sealing means 100 are formed of two flexible and elastic lips 170, 172 which are symmetrical and integral respectively with the inner face of the walls 16 and 18, and directed inwards. and the bottom of the bag.
  • these lips 170, 172 may be directed towards the inside of the slider 50 (in particular, for example, for vacuum bags).
  • the arrangement with support means 150 applies to all types of sealing means 100 and is not limited to the means 100 of FIG. 35. It may especially apply to lips 170, 172 symmetrical.
  • closure profiles 20, 22 are of the male / female type.
  • the invention can be applied to any other type of closure profile, in particular hook profiles.
  • the support means 150 are formed of two symmetrical elements 152, 154, integral respectively the inner faces of the walls 16, 18, at the mouth of the bag. More specifically according to Figure 35, each of these elements 152, 154 has a rectangular cross section and extends towards the median plane of the bag at which, these elements are in mutual support, in the closed position of the bag. Thus, these elements 152 and 154 extend generally perpendicularly to this median plane.
  • the means 100, the profiles 20, 22 and the means 150 are made of material, possibly materials, preferably extruded, with the walls 16, 18. More precisely still note that the sections of these walls between the sealing means 100 and the support means 150 are thicker than the sheets 16, 18 making up the rest and most of the bags. Thus the aforementioned sections have a certain rigidity between the means 100 and the means 150.
  • FIG. 36 illustrates the biasing means provided on the slider 50, in the form of bosses 520, 540 provided on the inner surface of the wings 52, 54, to the right of the closure profiles 20, 22.
  • bosses formed cylindrical caps, but the invention is not limited to this particular geometry.
  • FIG. 36 denotes F1 the force exerted by the slider 50 on the mouth sections of the walls of the bag, F2 the reaction due to the means 150 and F3 the force then exerted on the sealing means 100.
  • the aforementioned sections define at the mouth of the bag a cage of rectangular cross section which projects relative to the main walls 16 and 18 of the bag.
  • the main walls of the bag are not coplanar with the external surfaces of these sections, but are set back inwards, with respect to these, by a value "d". It is thus defined on the walls 16 and 18 of the bag a recess that serves to support the returns 53 and 55 provided on the wings 52 and 54 of the slider 50, to prevent inadvertent withdrawal thereof.
  • FIG. 37 illustrates a variant according to which such a step is eliminated.
  • the main walls of the bag are coplanar, at rest, from the external surfaces of the sections situated between the means 100 and 150.
  • such a variant can also cooperate with a slider 50 equipped with returns 53, 55 on its wings 52, 54 thanks to the permitted deformation of the sheets 16, 18.
  • the aforementioned sections between the means 100 and 150 define at the mouth of the bag not a cage of rectangular cross section, but a generally rounded cage.
  • the bearing elements 152, 154 are symmetrical and contact each other in the median plane of the bag. Alternatively, however, these elements 152, 154 can be asymmetrical and thus contact outside the median plane. There is thus illustrated in FIG. 39, a variant according to which only the wall 18 is provided with a bearing element 154 projecting on its internal face. This element 154 is adapted to rest on the inner face of the opposite wall 16.
  • the sealing means 100, the closure profiles 20, 22 and the support means 150 are made of material, possibly of materials, preferably extruded, on the walls 16, 18.
  • these various means may be on respective attached support webs, for example thermally welded or bonded to the inner faces of the sheets. 16, 18. It may be respective and separate support webs for each of the means 100, profiles 20, 22 and means 150, or the support sails common to several of these means.
  • FIG. 40 illustrates an alternative embodiment in which the means 100, the closure profiles 20, 22 and the support means 150 are carried by two respective webs, one on the inner face of the sheet 16, and brought the other on the inner face of the sheet 18.
  • FIG. 41 illustrates a variant embodiment according to which the biasing means are formed not of integral bosses of the internal face of the flanges of the slider, but of bosses projecting from the outside face of the sections of wall situated between the flanges.
  • means 100 and 150 preferably to the right of closure profiles 20, 22.
  • bosses both on the slider and on the walls of the bag can be provided bosses both on the slider and on the walls of the bag.
  • FIG. 42 illustrates another variant embodiment in which the ends facing the elements 152 and 154 forming support means are enlarged, to guarantee that these elements can be supported and to avoid these elements being displaced by offset. adjacent, in which case the lever expected to exercise the bias on the means 100 would not be obtained.
  • the adjacent ends of the elements 152 and 154 have a generally triangular cross section whose base is located in the contact plane.
  • the invention is not limited to this particular provision.
  • FIG. 43 illustrates a variant according to which the slider 50 is equipped on the inner face of its wings 52, 54 with projecting structures 522, 542 of complementary cross section with grooves 13 formed in the aforementioned bosses 15, the structures 522 and 542 being engaged in these grooves 13. More precisely still the structures 522, 542 are flared, while the grooves 13 have convergent edges. Thanks to this arrangement, it avoids an unwanted withdrawal of the slider 50.
  • FIG. 44 illustrates another variant embodiment in which forms-complementary means are thus defined between the slider 50 and the walls of the bag, at the level of the returns 53, 55 formed on wings 52, 54, in the form of elements 530, 550 as previously described.
  • the elements making up the sealing means 100 may be coextruded with the bag and / or the closure strips, into a material that is more flexible than the material forming the latter.
  • the lips 170, 172 into an ethylene copolymer or a synthetic elastomer.
  • the means 100 are adapted (according to their geometry and / or their support force) or to provide a complete barrier prohibiting any penetration from the outside to the inside of the bag and any leakage from the inside to the outside of the bag, either to ensure at least one barrier in one direction, that is to say to prohibit penetration from the outside to the inside of the bag, or to prohibit a leak from the inside to the outside of the bag.
  • the sealing means 100 may not be placed facing the flanks 52, 54 of the slider, but outside of it. In other words, in this case, the end of the slider is located between these means 100 and the closing profiles 20, 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Claims (83)

  1. Beutel mit zwei im allgemeinen parallelen, die Hauptwände des Beutels bildenden Folien (16,18), komplementären Schließprofilen (20,22), die jeweils an diesen. Folien (16,18) auf Höhe der Öffnung des Beutels befestigt sind, und einem Schieber (50), der zwei auf Höhe einer Grundplatte (56) miteinander verbundene Seitenflügel (52,54) umfasst, die am Äußeren der Folien (16,18) auf Höhe der Öffnung des Beutels platziert sind, und die mit einer zentralen langgezogenen Sohle (59) zwei konvergierende Durchgänge (590, 592) für die komplementären Schließprofile (20,22) festlegen, wobei die Seitenflügel (52,54) in der Nachbarschaft ihrer freien, der Grundplatte (56) gegenüberliegenden Seite mit Beanspruchungsmitteln (520,540;100) der Folien (16,18) des Beutels bei Annäherung ausgestattet sind, die die gesamte Längsausdehnung der Sohle (59) bedecken,
    dadurch gekennzeichnet, dass
    die Sohle (59) im Rücksprung des Längsendes des Schiebers (50) auf der breitesten, der divergierenden Seite der Durchgänge (590,592) entsprechenden Seite des Schiebers unterbrochen ist, und dass die Beanspruchungsmittel Rippen (520,540) vorspringend zum Inneren des Schiebers (50) hin auf Höhe der der Grundplatte (56) gegenüberliegenden Seite der Flügel (52,54) oder auf einem Teil der Höhe der Innenfläche dieser Flügel (52,54) zwischen der freien Seite der Flügel (52,54) und der Grundplatte (56) umfassen, wobei die Rippen (520,540) unterhalb der Sohle (59) liegen und die Rippen (520,540) sich über die gesamte Länge des Schiebers (50) erstrecken, während die Sohle (59) auf Höhe ihres breitesten Endes in einem Abstand (I1) zwischen 1 und 10 mm vom Ende des Schiebers (50) unterbrochen ist, um die Dichtheit des Beutels in geschlossener Position desselben sicherzustellen.
  2. Beutel gemäß Anspruch 1, dadurch gekennzeichnet, dass die Sohle (59) auch auf Höhe ihres dünnsten Endes (sich verengende Seite der Gänge (590, 592) in einem Abstand (I2) vom Ende des Schiebers (50) unterbrochen ist.
  3. Beutel gemäß einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Breite (I6) des freien, zwischen den Spitzen der Rippen (520,540) festgelegten Raums im wesentlichen gleich der Summe der Dicken der Folien (16,18) auf Höhe der Öffnung der Beutel ist.
  4. Beutel gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Schieber zwei symmetrische und gleich hohe Rippen (520, 540), eine auf jedem Flügel (52,54) umfasst.
  5. Beutel gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Schieber (50) asymmetrische Rippen (520,540), oder eine einzige Rippe auf dem einen der Flügel (52,54) des Schiebers (50) umfasst.
  6. Beutel gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der das dünne Ende der Sohle (59) und das Ende des Schiebers trennende Abstand (I2) zwischen 0,5mm und 10mm ist.
  7. Beutel gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Höhe (I3) der Sohle (59) zwischen 2 mm und 7mm ist.
  8. Beutel gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der die Spitze der Sohle und die Beanspruchungsmittel (520,540) trennende Abstand (14) zwischen 5mm und 15mm ist.
  9. Beutel gemäß einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Dicke (15) der Sohle (59) an ihrem breiten Ende zwischen 0,3mm und 2mm ist.
  10. Beutel gemäß einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Breite (I6) der ausgesparten Öffnung zwischen den Beanspruchungsmitteln (520,540) zwischen 50µm und 2,5mm ist.
  11. Beutel gemäß einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Verhältnis (I1/I5) zwischen dem das breite Ende der Sohle (59) und das Ende des Schiebers trennenden Abstand (I1) und der Dicke (15) der Sohle (59) an ihrem breiten Ende zwischen 0,5 und 30 ist.
  12. Beutel gemäß einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass das Verhältnis (I2/I5) zwischen dem das dünne Ende der Sohle (59) und das Ende des Schiebers trennenden Abstand (I2) und der Dicke (I5) der Sohle (59) an ihrem breiten Ende zwischen 2,5 und 30 ist.
  13. Beutel gemäß einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass das Verhältnis (I1/I3) zwischen dem das breite Ende der Sohle (59) und das Ende des Schiebers trennenden Abstand (11) und der Höhe (13) der Sohle (59) zwischen 0,5 und 5 ist.
  14. Beutel gemäß einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass das Verhältnis (I2/I3) zwischen dem das dünne Ende der Sohle (59) und das Ende des Schiebers trennenden Abstand (I2) und der Höhe (I3) der Sohle (59) zwischen 0,1 und 5 ist.
  15. Beutel gemäß einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass das Verhältnis (I1/I4) zwischen dem das breite Ende der Sohle (59) und das Ende der Schiebers trennenden Abstand (I1) und dem die Spitze der Sohle (59) und die Beanspruchungsmittel (520,540) trennenden Abstand (I4) zwischen 0,05 und 2 ist.
  16. Beutel gemäß einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass das Verhältnis (I2/I4) zwischen dem das dünne Ende der Sohle (59) und das Ende des Schiebers trennende Abstand (12) und dem die Spitze der Sohle (59) und die Beanspruchungsmittel (520,540) trennende Abstand (14) zwischen 0,05 und 2 ist.
  17. Beutel gemäß einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass er außerdem parallel zu den Schließprofilen (20,22) zwischen den Folien (16,18) und auf Höhe der Öffnung (12) des Beutels zusätzliche erhabene Mittel (100) umfasst, die entworfen sind, um die Dichtheit sicherzustellen, indem sie eine Sperre zwischen den Folien (16,18) in Schließposition des Beutels bilden, wobei die zusätzlichen erhabenen Mittel (100) angepasst sind, in Richtung ihrer Dichtungsposition vom Schieber (50) beansprucht zu werden, wenn der Schieber in Richtung der Schließposition des Beutels bewegt wird.
  18. Beutel gemäß dem Anspruch 17, dadurch gekennzeichnet, dass die zusätzlichen, die Dichtheit (100) sicherstellenden erhabenen Mittel wenigstens einen Abdichtungsstreifen (102;104,106) umfassen, der fest mit der Innenseite einer Folie (16) des Beutels verbunden ist.
  19. Beutel gemäß einem der Ansprüche 17 oder 18, dadurch gekennzeichnet, dass die zusätzlichen, die Dichtheit (100) sicherstellenden erhabenen Mittel zwei Abdichtungsstreifen (104, 106) umfassen, die jeweils fest mit der Innenseite der beiden Folien (16,18) des Beutels verbunden sind.
  20. Beutel gemäß Anspruch 17, dass die zusätzlichen, die Dichtheit (100) sicherstellenden erhabenen Mittel komplementäre männlich/weiblich Elemente (110,112) umfassen, die jeweils fest mit der Innenseite der beiden Folien (16,18) des Beutels verbunden sind.
  21. Beutel gemäß Anspruch 20, dadurch gekennzeichnet, dass das männliche Element (110) einen im wesentlichen dreieckigen Teilbereich aufweist.
  22. Beutel gemäß einem der Ansprüche 20 oder 21, dadurch gekennzeichnet, dass die beiden Lippen (1120 und 1122) des weiblichen Elements (112) asymmetrisch sind.
  23. Beutel gemäß einem der Ansprüche 20 bis 22, dadurch gekennzeichnet, dass die Lippe (1120) des weiblichen Elements (112), die bzgl. des männlichen Elements (110) zum Inneren des Beutels hin gelegen ist, länger und flexibler ist als die zweite, zum Äußeren des Beutels hin gelegene Lippe (1122).
  24. Beutel gemäß einem der Ansprüche 17 bis 23, dadurch gekennzeichnet, dass die zusätzlichen erhabenen, die Dichtheit (100) sicherstellenden Mittel auf der Innenseite der Schließprofile (20,22) angeordnet sind.
  25. Beutel gemäß einem der Ansprüche 17 bis 24, dadurch gekennzeichnet, dass die zusätzlichen erhabenen, die Dichtheit (100) sicherstellenden Mittel sich über die gesamte Länge der Beutel erstrecken.
  26. Beutel gemäß einem der Ansprüche 17 bis 25, dadurch gekennzeichnet, dass die Geometrie der Profile (20,22), der zusätzlichen Mittel (100) und des Schiebers (50) so ist, dass die Flanken (52,54) des Schiebers (50) auf die Mittel (100) ein Querspiel auferlegen, das kleiner als das für die Schließprofile (20,22) zulässigen ist.
  27. Beutel gemäß einem der Ansprüche 17 bis 26, dadurch gekennzeichnet, dass die Innenseiten der Flanken (52,54) des Schiebers (50) parallel sind, und die Dicke (L1) der Mittel (100) über der (L2) durch die Schließprofile (20,22) festgelegten ist, wenn diese in Eingriff sind.
  28. Beutel gemäß einem der Ansprüche 17 bis 27, dadurch gekennzeichnet, dass der Schieber (50) auf der Innenseite seiner Flanken (52,54) Verstärkungen (520,540) besitzt, die gegenüber der Mittel (100) platziert werden, um die Beanspruchung dieser letztgenannten in Dichtungsposition beim Schließen des Beutels zu garantieren.
  29. Beutel gemäß einem der Ansprüche 17 bis 28, dadurch gekennzeichnet, dass die Wände des Beutels Verstärkungen umfassen, die gegenüber der Mittel (100) und gegenüber der Flanken des Schiebers (50) platziert sind, um die Beanspruchung der Mittel (100) in Dichtungsposition beim Schließen des Beutels zu garantieren.
  30. Beutel gemäß einem der Ansprüche 17 bis 29, dadurch gekennzeichnet, dass er auf der einen Seite Kerben (160,180) umfasst, die auf der Außenfläche des Beutels hervortreten, jeweils gegenüber der Mittel (100) und auf der anderen Seite Rippen (522 und 542) im Vorsprung auf der Innenseite der Flanken (52 und 54) des Schiebers (50), wobei die Rippen (522 und 542) angepasst sind, jeweils in die Kerben (160 und 180) einzudringen.
  31. Beutel gemäß einem der Ansprüche 17 bis 30, dadurch gekennzeichnet, dass er Mittel (19,24) umfasst, die eine Hülle gegen Verletzung oder eine Öffnungsanzeige auf Höhe der Öffnung (12) bilden.
  32. Beutel gemäß Anspruch 31, dadurch gekennzeichnet, dass die Hülle gegen Verletzung aus einer zum Inneren des Beutels gefalteten Manschette auf Höhe der Öffnung (12) in der Kontinuität der Trägerhüllen (121, 21 und 123, 23) der Schließprofile oder zusätzlicher Dichtungsmittel gebildet ist.
  33. Beutel gemäß Anspruch 31, dadurch gekennzeichnet, dass die Hülle gegen Verletzung (19) aus einer zum Inneren des Beutels gefalteten Manschette auf Höhe der Öffnung (12) in der Kontinuität des den Beutel bildenden Films gebildet ist.
  34. Beutel gemäß einem der Ansprüche 17 bis 33, dadurch gekennzeichnet, dass der Beutel (10) aus einem einzigen Film gebildet ist, der auf sich selbst auf Höhe des Bodens (14) des Beutels gefaltet ist.
  35. Beutel gemäß einem der Ansprüche 17 bis 33, dadurch gekennzeichnet, dass der Beutel (10) aus einem einzigen Film gebildet ist, der auf sich selbst auf Höhe der Öffnung (12) des Beutels gefaltet ist.
  36. Beutel gemäß einem der Anspruch 17 bis 33, dadurch gekennzeichnet, dass der Beutel (10) aus zwei Folien (16,18) gebildet ist, die anfangs getrennt und bei der Herstellung übereinandergelegt sind.
  37. Beutel gemäß einem der Ansprüche 17 bis 36, dadurch gekennzeichnet, dass die komplementären Schließprofile (20,22) und/oder die zusätzlichen Dichtungsmittel (100) mittels Extrusion auf den den Beutel bildenden Folien (16,18) hergestellt sind.
  38. Beutel gemäß einem der Ansprüche 17 bis 36, dadurch gekennzeichnet, dass die komplementären Schließprofile (20,22) und/oder die zusätzlichen Dichtungsmittel (100) anfangs auf jeweiligen Trägerhüllen (21,23;121,123) gebildet werden, die auf die Folien (16,18) auf Höhe der Öffnung (12) des Beutels angesetzt sind.
  39. Beutel gemäß einem der Ansprüche 17 bis 36 und 38, dadurch gekennzeichnet, dass die komplementären Schließprofile (20,22) und die zusätzlichen Dichtungsmittel (100) anfangs auf gemeinsamen Trägerhüllen (21,23;121,123) gebildet werden, die auf die Folien (16,18) auf Höhe der Öffnung (12) des Beutels angesetzt sind.
  40. Beutel gemäß einem der Ansprüche 17 bis 39, dadurch gekennzeichnet, dass die Schließprofile (20,22) angepasst sind, automatisch eine Querbeanspruchung (P) auf die Mittel (100) sicherzustellen, wenn der Beutel geschlossen ist.
  41. Beutel gemäß einem der Ansprüche 17 bis 40, dadurch gekennzeichnet, dass die komplementären Schließprofile (20,22) vom Typ männlich/weiblich sind, und dass sie wenigstens ein männliches oder weibliches asymmetrisches Profil umfassen.
  42. Beutel gemäß Anspruch 41, dadurch gekennzeichnet, dass die Höhe oder Platzbedarf (L3) des Elements (220), das die innere Lippe des weiblichen Profils (22) festlegt, kleiner als die Höhe oder Platzbedarf (L4) des Elements (222) ist, das die äußere Lippe des weiblichen Profils (22) festlegt.
  43. Beutel gemäß einem der Ansprüche 17 bis 40, dadurch gekennzeichnet, dass die komplementären Schließprofile (20,22) vom Typ Haken sind und dass sie wenigstens zwei Paare komplementärer Haken besitzen, die Breiten in zusammengebauter Position festlegen, die unterschiedlich von einem Hakenpaar zum anderen sind.
  44. Beutel gemäß Anspruch 43, dadurch gekennzeichnet, dass die zwei komplementären zum Inneren des Beutels hin gelegenen Haken (C1, C2) in zusammengesetzter Position eine Breite (L5) zwischen den gleichen Innenseiten der Folien (16,18) kleiner als die Breite L6 auf Höhe des Paares komplementärer Haken (C3, C4) festlegen, die zum Äußeren des Beutels hin gelegen sind.
  45. Beutel gemäß einem der Ansprüche 17 bis 44, dadurch gekennzeichnet, dass die zusätzlichen, die Dichtheit (100) sicherstellenden erhabenen Mittel zwei Elemente (104,106) umfassen, die jeweils fest mit der Innenfläche der beiden Folien (16,18) des Beutels verbunden sind und dazu bestimmt sind, an ihrer Spitze in Anschlag zu kommen.
  46. Beutel gemäß einem der Ansprüche 17 bis 44, dadurch gekennzeichnet, dass die zusätzlichen, die Dichtheit (100) sicherstellenden erhabenen Mittel zwei Elemente (104,106) umfassen, die jeweils mit der Innenfläche der beiden Folien (16,18) verbunden sind und dazu bestimmt sind, nebeneinandergestellt zu werden und auf Höhe ihrer gegenüberliegenden, aneinanderliegenden Flanken (103, 105) global senkrecht zu den Folien (16 und 18) in Anschlag zu kommen.
  47. Beutel gemäß einem der Ansprüche 17 bis 44, dadurch gekennzeichnet, dass der Schieber (50) auf den Enden wenigstens des einen seiner Seitenflügel (52,54) mit einem Rückzug (53,55) ausgestattet ist, der zum Inneren des Beutels hin gerichtet und positioniert ist, um jenseits der Dichtungsmittel (100) platziert zu werden.
  48. Beutel gemäß Anspruch 47, dadurch gekennzeichnet, dass der Schieber (50) außerdem auf Höhe des Endes dieses Rückzugs (53,55) mit einem zusätzlichen Flügel (530,550) ausgestattet ist, der zur Grundplatte (56) des Schiebers (50), d.h. zum Äußeren des Beutel hin gerichtet ist.
  49. Beutel gemäß einem der Ansprüche 17 bis 48, dadurch gekennzeichnet, dass die Anteile von gegenüber der Schließprofile (20,22) und der Dichtungsmittel (100) angeordneten Trägerfilmen (16,18) eine Dicke besitzen, die größer als die Dicke des Restes des den Beutel bildenden Films ist.
  50. Beutel gemäß Anspruch 49, dadurch gekennzeichnet, dass die lokalisierte Überdicke der Folien (16,18) in Form einer Überdicke erhalten wird, die bei der Extrusion des Films gebildet wird.
  51. Beutel gemäß Anspruch 49, dadurch gekennzeichnet, dass die lokalisierte Überdicke der Filme (16,18) aus der Befestigung der Trägerhüllen der Schließprofile (20,22) oder der Mittel (100) resultiert.
  52. Beutel gemäß einem der Ansprüche 19 und 45, dadurch gekennzeichnet, dass die zwei Elemente (104,106), die jeweils fest mit der Innenseite der Folien (16,18) verbunden sind, an ihrer Spitze mit wenigstens einem Flügel (1040,1060) ausgestattet sind, der jeweils senkrecht zu den Elementen ist.
  53. Beutel gemäß einem der Ansprüche 19 und 46, dadurch gekennzeichnet, dass wenigstens eines der beiden Elemente (104,106), die auf den Trägerfolien vorgesehen sind, an seiner Spitze mit einem senkrechten Flügel (1060) ausgestattet ist, der gegen die Innenseite der gegenüberliegenden Folie (16) aufliegt.
  54. Beutel gemäß einem der Ansprüche 19 und 46, dadurch gekennzeichnet, dass wenigstens eines der beiden Elemente (104,106), die auf den Trägerfolien vorgesehen sind, an seiner Spitze mit einem rundlichem Wulst (1042,1062) ausgestattet ist.
  55. Beutel gemäß Anspruch 48, dadurch gekennzeichnet, dass der Schieber (50) außerdem auf Höhe des Endes dieses Rückzugs (53,55) mit einer Verstärkung (532) ausgestattet ist, die zur Grundplatte (56) hin gerichtet ist, um die beiden nebeneinandergestellten Elemente (104,106) mittels ihrer anliegenden Flanken (103,105) in Anschlag zu beanspruchen.
  56. Beutel gemäß einem der Ansprüche 17 bis 55, dadurch gekennzeichnet, dass die Teile der Trägerfilme (16,18), die die Schließprofile (20,22) und die Dichtungsmittel (100) tragen, nicht in der direkten Verlängerung der Folien platziert sind, die den Körper des Beutels bilden, sondern zum Äußeren des Beutels hin auf Höhe jeweiliger Abweichungen (1600,1800) verschoben sind.
  57. Beutel gemäß Anspruch 56, dadurch gekennzeichnet, dass eine der Abweichungen (1800) selbst mit einer Verlängerung (1802) ausgestattet ist, die zur gegenüberliegenden Trägerfolie (16) gerichtet ist.
  58. Beutel gemäß einem der Ansprüche 19 und 46, dadurch gekennzeichnet, dass wenigstens eines der beiden Elemente (104 oder 106) eine in Richtung ihrer Spitze wachsende Dicke aufweist oder eine derart schräggestellte Flanke besitzt, dass sie einen Druck auf das andere, danebengestellte Element (106,104) in Schließposition des Beutels ausübt.
  59. Beutel gemäß einem der Ansprüche 17 bis 58, dadurch gekennzeichnet, dass die Dichtungsmittel (100) flexible und elastische Strukturen umfassen, um beim Schließen des Beutels deformierbar zu sein.
  60. Beutel gemäß einem der Ansprüche 17 bis 59, dadurch gekennzeichnet, dass die Dichtungsmittel (100) wenigstens eine gekrümmte, flexible und elastische Lippe (130) umfassen, die fest mit der das eine der Schließprofile (22) tragenden Folie (18) verbunden ist.
  61. Beutel gemäß Anspruch 60, dadurch gekennzeichnet, dass die Lippe (130) aus einem Zylindersektor gebildet ist, dessen Mittelpunktswinkel über 180° ist.
  62. Beutel gemäß einem der Ansprüche 60 oder 64, dadurch gekennzeichnet, dass sich im geöffneten Zustand des Beutels die Lippe (130) jenseits des dazugehörigen Schließprofils (22) erstreckt, so dass im geschlossenen Zustand des Beutels die Lippe (130) einen Druck auf die gegenüberliegende Folie (16) ausübt.
  63. Beutel gemäß einem der Ansprüche 60 bis 62, dadurch gekennzeichnet, dass die Lokalisierung der Lippe (130) und die Geometrie dieser Lippe (130) so sind, dass die Lippe (130), wenn sie auf der gegenüberliegenden Folie (16) aufliegt, eine Reaktion empfängt, die sie selbst in Anschlag gegen eines der Schließprofile beansprucht.
  64. Beutel gemäß Anspruch 63, dadurch gekennzeichnet, dass die Beanspruchung der Lippe (130) in Anschlag gegen das weibliche Schließelement (22) durch die Anwesenheit auf der Innenseite der Flanken (52,54) des Verstärkungsschiebers (50, 520, 540) verstärkt wird.
  65. Beutel gemäß Anspruch 64, dadurch gekennzeichnet, dass die Verstärkungen (520,540) zur oberen Grundplatte (56) des Schiebers (50) in Annäherung des an der Öffnungsseite des Beutels liegendem Ende des Schiebers (50) zusammenlaufen.
  66. Beutel gemäß einem der Ansprüche 17 bis 65, dadurch gekennzeichnet, dass jede der beiden Folien (16,18) auf ihrer Innenfläche mit einer elastischen Lippe (130) in Zylindersektorform ausgestattet ist, die ausgelegt sind, beim Schließen des Beutels an ihrer Spitze in Anschlag zu kommen.
  67. Beutel gemäß einem der Ansprüche 17 bis 65, dadurch gekennzeichnet, dass jede der beiden Folien (16,18) auf ihrer Innenfläche mit einer elastischen Lippe (130) in Zylindersektorform ausgestattet ist, die entworfen sind, um seitlich nebeneinandergestellt zu werden.
  68. Beutel gemäß einem der Ansprüche 17 bis 67, dadurch gekennzeichnet, dass er an seiner Öffnung (12) Mittel (150) umfasst, die gegenüberliegend zu den zusätzlichen Dichtungsmitteln (100) bezüglich der Schließprofile (20,22) liegen und angepasst sind, einen Anschlag zwischen den inneren gegenüberliegenden Seiten des Beutels festzulegen, und auf dem Schieber (50) sind Mittel (520,540) vorgesehen, die geeignet sind, die Wände des Beutels zum Inneren hin in einem Bereich dieser Wände zwischen den zusätzlichen Dichtungsmitteln (100) und den Anschlagmitteln (150) zu beanspruchen.
  69. Beutel gemäß Anspruch 68, dadurch gekennzeichnet, dass die Beanspruchung im rechten Winkel zu den Schließprofilen (20,22) geschieht.
  70. Beutel gemäß einem der Ansprüche 68 oder 69, dadurch gekennzeichnet, dass die zusätzlichen Dichtungsmittel (100) auf der Innenseite der Schließprofile (20,22) gelegen sind, während die den Anschlag festlegenden Mittel (150) auf der Außenseite der Schließprofile (20,22) platziert sind.
  71. Beutel gemäß einem der Ansprüche 68 bis 70, dadurch gekennzeichnet, dass die zusätzlichen Dichtungsmittel (100) aus zwei flexiblen und elastischen Lippen (170,172) gebildet sind.
  72. Beutel gemäß einem der Ansprüche 68 bis 71, dadurch gekennzeichnet, dass die Anschlagmittel (150) aus zwei Elementen (152, 154) gebildet sind, die jeweils fest mit den Innenseiten der Wänden (16,18) auf Höhe der Öffnung des Beutels verbunden sind.
  73. Beutel gemäß Anspruch 72, dadurch gekennzeichnet, dass diese Elemente (152, 154) bei geschlossener Position des Beutels in gegenseitigem Anschlag in der mittleren Ebene desselben sind.
  74. Beutel gemäß Anspruch 72, dadurch gekennzeichnet, dass diese Elemente (152, 154) bei geschlossener Position des Beutels in gegenseitigem Anschlag außerhalb der Mittelebene desselben sind.
  75. Beutel gemäß einem der Ansprüche 68 bis 74, dadurch gekennzeichnet, dass die Anschlagmittel (150) mittels Extrusion mit den Wänden (16,18) des Beutels hergestellt werden.
  76. Beutel gemäß einem der Ansprüche 68 bis 74, dadurch gekennzeichnet, dass die Anschlagmittel (150) mittels Extrusion auf den auf den Wänden (16,18) des Beutels angesetzten Trägerhüllen hergestellt werden.
  77. Beutel gemäß einem der Ansprüche 68 bis 76, dadurch gekennzeichnet, dass die Abschnitte der Wände zwischen den Dichtungsmitteln (100) und den Anschlagmitteln (150) dicker sind als die den Rest und das Wesentliche der Beutel bildenden Folien (16,18).
  78. Beutel gemäß einem der Ansprüche 68 bis 79, dadurch gekennzeichnet, dass die Beanspruchungsmittel Verstärkungen (520,540) auf der Innenseite der Flügel (52,54) des Schiebers (50) umfassen.
  79. Beutel gemäß einem der Ansprüche 68 bis 78, dadurch gekennzeichnet, dass die Beanspruchungsmittel Verstärkungen auf den Wänden des Beutels umfassen.
  80. Beutel gemäß einem der Ansprüche 78 oder 79, dadurch gekennzeichnet, dass die Verstärkungen (520,540) im rechten Winkel zu den Schließprofilen (20,22) vorgesehen sind.
  81. Beutel gemäß einem der Ansprüche 68 bis 80, dadurch gekennzeichnet, dass die Enden gegenüber der Anschlagsmittel bildenden Elemente (152, 154) aufgeweitet sind, z.B. im allgemein dreieckigen Querschnitt.
  82. Beutel gemäß einem der Ansprüche 17 bis 81, dadurch gekennzeichnet, dass die die Dichtungsmittel (100) bildenden Elemente mit dem Beutel und/oder den Schließprofilen koextrudiert sind, aus einem flexibleren Material als dem Material, das diese letztgenannten bildet, z.B. aus einem Kopolymer aus Ethylen oder einem Synthese-Elastomer.
  83. Beutel gemäß einem der Ansprüche 17 bis 82, dadurch gekennzeichnet, dass die zusätzlichen erhabenen Mittel gegenüber der Flanken des Schiebers platziert sind.
EP99402702A 1998-11-02 1999-10-29 Beutel mit durch einen Schieber betätigten Verschlussprofilen Expired - Lifetime EP1000559B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9813734 1998-11-02
FR9813734A FR2785259B1 (fr) 1998-11-02 1998-11-02 Sachet comprenant des profiles de fermeture complementaires actionnes par curseur

Publications (3)

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EP1000559A2 EP1000559A2 (de) 2000-05-17
EP1000559A3 EP1000559A3 (de) 2000-08-16
EP1000559B1 true EP1000559B1 (de) 2008-01-02

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US (1) US6305844B1 (de)
EP (1) EP1000559B1 (de)
DE (1) DE69937869T2 (de)
DK (1) DK1000559T3 (de)
ES (1) ES2297916T3 (de)
FR (1) FR2785259B1 (de)

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Also Published As

Publication number Publication date
EP1000559A2 (de) 2000-05-17
FR2785259A1 (fr) 2000-05-05
EP1000559A3 (de) 2000-08-16
FR2785259B1 (fr) 2001-12-07
DE69937869D1 (de) 2008-02-14
DE69937869T2 (de) 2009-01-02
ES2297916T3 (es) 2008-05-01
US6305844B1 (en) 2001-10-23
DK1000559T3 (da) 2008-04-28

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