EP1000559A2 - Beutel mit durch einen Schieber betätigten Verschlussprofilen - Google Patents

Beutel mit durch einen Schieber betätigten Verschlussprofilen Download PDF

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Publication number
EP1000559A2
EP1000559A2 EP99402702A EP99402702A EP1000559A2 EP 1000559 A2 EP1000559 A2 EP 1000559A2 EP 99402702 A EP99402702 A EP 99402702A EP 99402702 A EP99402702 A EP 99402702A EP 1000559 A2 EP1000559 A2 EP 1000559A2
Authority
EP
European Patent Office
Prior art keywords
bag
bag according
fact
cursor
sheets
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
EP99402702A
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English (en)
French (fr)
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EP1000559A3 (de
EP1000559B1 (de
Inventor
Henri Georges Bois
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.)
S2F Flexico SARL
Original Assignee
Flexico France SARL
S2F Flexico SARL
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 Flexico France SARL, S2F Flexico SARL filed Critical Flexico France SARL
Publication of EP1000559A2 publication Critical patent/EP1000559A2/de
Publication of EP1000559A3 publication Critical patent/EP1000559A3/de
Application granted granted Critical
Publication of EP1000559B1 publication Critical patent/EP1000559B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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 at opening and closing with a cursor.
  • the sliders have two side wings connected between them at a base and which define, with a sole elongated central unit placed between the closing profiles, two converging passage for additional closing profiles nestable. So when the relative direction of movement of the cursor by compared to the closing profiles tends to move the cursor by forcing the closing profiles in engagement, the bag is closed. On the contrary when the cursor is moved in the opposite direction, the bag is opened, thanks to the central sole that separates the closure profiles.
  • the sliders make it easier to open and close the sachets.
  • the presence of a cursor is particularly appreciated by elderly or visually impaired people.
  • Sealing is however demanded in many applications, in particular but not limited to the sachets used for freezing food products.
  • the present invention now aims to improve the performance of known slider bags.
  • the main purpose of the present invention is to provide sachets having a greater seal than that of the earlier sachets known.
  • Another object of the present invention is to propose means limiting the risk of inadvertent removal of the cursor, in particular in order to limit the risk of ingestion by young children.
  • Another object of the present invention is to propose means allowing a high productivity rate in automatic.
  • a bag comprising two generally parallel sheets forming the main walls of the bag, additional closure profiles fixed respectively on these sheets at the mouth of the bag and a cursor comprising two lateral wings connected to each other at the level a base, placed on the outside of the sheets at the mouth of the bag and which define with a central sole elongated, two converging passage lanes for the profiles of additional closure, characterized in that the sole is interrupted back from the longitudinal end of the cursor, at least on the widest side of the cursor corresponding to the divergent side of passageways, and that the side wings are provided in the vicinity of their free edge opposite the base, means for urging the sheets of the sachet in reconciliation, covering the entire longitudinal extent of the sole and extending longitudinally beyond on either side thereof, to seal the bag in its closed position.
  • FIG. 1 There is shown schematically in Figures 1 to 3 a bag 10 of which the 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 origin as illustrated in FIGS. 1 to 3, or by welding or gluing, the two sheets 16, 18 being initially separated and superimposed during manufacture as illustrated in FIGS. 9 to 14, or by welding or gluing the edges of a single folded sheet on itself at the mouth, as illustrated for example on Figures 15 and 16), as well as at the two lateral 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 of complementary closure profiles 20, 22.
  • closure profiles 20, 22 respectively of male and female type as is well known from those skilled in the art and as shown diagrammatically in FIGS. 1 to 8 and 17 and following.
  • the invention is not limited to this particular provision and can also extend for example to closure profiles 20, 22 of the hook type as illustrated in figures 9 to 16.
  • the complementary closure profiles 20, 22 may have come of extrusion on the sheets 16, 18 making up the sachet (more precisely on the internal surface of these sheets 16, 18 according to the embodiments of the Figures 1 to 6 and 8 to 12 and on the external surface of these sheets according to the embodiment of FIG. 15 when the sheets 16, 18 form, at the mouth of the bag, a bellows folded towards the inside of the bag to form an opening control veil).
  • the profiles of closure 20, 22 can be formed initially on support webs respective 21, 23 reported on sheets 16, 18, at the level of the mouth 12 of the bag, as illustrated in FIGS. 7, 13, 14 and 16.
  • the support webs 21, 23 are fixed on the internal surface of the sheets 16, 18.
  • the sheets 16, 18 forming, at the mouth of the sachet, a bellows folded towards the inside of the bag to form a control veil opening, the support webs 21, 23 are fixed on the external surface of the sheets 16, 18.
  • connection between the webs 21, 23 and the films 16, 18 can be produced by any suitable conventional means, for example by welding hot or sticking.
  • closure profiles not from extrusion on films 16, 18, but reported by welding or gluing is not illustrated on the accompanying drawings only in FIGS. 7, 13, 14 and 16.
  • closure profiles 20, 22 attached to the films 16, 18 may apply to all of the variant embodiments in accordance with the invention.
  • the sachet also includes a cursor 50 whose role is to facilitate the openings and closings of the bag, by separation, respectively approximation, of the profiles of closing, when the cursor is moved to translation at the mouth of the bag.
  • the cursor 50 can be the subject of numerous embodiments.
  • the cursor 50 may in particular comply with the general provisions described in document EP-A-0479661.
  • the cursor 50 made of plastic, comprises two lateral wings 52, 54 (or “sides”) connected together at a base 56 and which define with an elongated central sole 59, two passage lanes 590, 592 converging for the closing profiles complementary nestable 20, 22.
  • the bag is closed.
  • the cursor 50 is moved in the reverse, the bag is open.
  • the sole 59 is interrupted on this side (that is to say in withdrawal) from the longitudinal end of the cursor, at least on the most wide of the cursor corresponding to the divergent side of the lanes 590, 592, as seen in particular in Figures 1, 3, 4 and 5, and the side wings 52, 54 are provided in the vicinity of their free edge opposite the base 56, means 520, 540 for urging the sheets 16, 18 of the sachet into approximation, covering the entire longitudinal extent of the sole 59 and extending beyond longitudinally on either side thereof, for seal the bag in its closed position.
  • these biasing means are composed of ribs 520, 540 in inward projection of the cursor 50, at the edge of the wings 52, 54 opposite the base 56, or where appropriate over part of the height of the internal surface of these wings 52, 54 lying between the free edge of the wings 52, 54 and the base 56. It will be noted that if the ribs 520, 540 are not necessarily located at the free edge of the lateral wings 52, 54, these ribs 520, 540 are however located below the sole 59 (that is to say between the top of the sole 59, opposite the base 56, and the free edge of the wings 52, 54), and not at the height thereof.
  • ribs 520, 540 continuously cover the sole 59 and extend beyond it, at least at the most wide of the sole 59 corresponding to the divergent side of the corridors 590, 592. More precisely still, according to the preferred embodiment illustrated in the appended figures, the ribs 520, 540 extend over all the length of the slider 50, while the sole 59 is interrupted, at the level of its widest end (divergent side of the corridors 590, 592), at a distance I1 from the end of the cursor 50, and at its level thinner end (converging side of lanes 590, 592), one distance I2 from the end of the cursor 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 sachets. So the cursor 50 solicits the sheets in approach, below the sole 59, and guarantees the tightness of the sachet.
  • two symmetrical ribs 520, 540 and the same height are provided, one on each of the wings 52, 54.
  • ribs 520, 540 asymmetrical. So we can only provide a rib unique on one of the wings 52, 54 of the cursor 50.
  • additional relief means 100 integral with the sachet designed to ensure sealing by forming a barrier between the sheets 16, 18, closed position of the bag, said additional means in relief 100 being placed opposite the sides 52, 54 of the cursor 50 to be used towards their sealing position by the cursor 50 when the latter is moved to the sealing position.
  • Films 16, 18, closure profiles 20, 22 and the means additional sealing 100 can be made of any material suitable plastic known to those skilled in the art.
  • it is polyolefin, very advantageously of low or high density polyethylene, even polypropylene.
  • the means 100 are arranged on the inside of the closure profiles 20, 22 (this is say towards the inside of the bags with respect to these closure profiles 20, 22) and extend over the entire length of the sachets (i.e. have the same length as the closure profiles 20, 22).
  • said means additional seals 100 are formed by a bead 102 parallel to the section 20 and integral with one of the sheets 16.
  • this bead 102 came from extrusion on film 16.
  • 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 cursor 50 and on the inside of these. Thus the bead 102 is stressed in press against the opposite film 18 when the cursor 50 is moved to position closing.
  • the geometry of the sections 20, 22, of the means 100 and of the cursor 50 is such that the sides 52, 54 of the cursor 50 impose on the means 100, transverse play (ie perpendicular to the sheets 16, 18) lower than that tolerated for closure profiles 20, 22.
  • the thickness L1 means 100 is greater than that L2 defined by the profiles of closure 20, 22 when these are engaged.
  • the means sealing 100 are formed by two beads 104, 106 integral respectively of the two films 16 and 18 and placed opposite to come in contact through their tops to form a tight barrier, when they are biased by the sides 52, 54 of the cursor 50.
  • the two beads 104, 106 are symmetrical. Alternatively, however, one can provide beads 104, 106 asymmetrical.
  • the means sealing 100 are formed of complementary elements 110, 112 male / female integral respectively with the internal surface of the two sheets 16, 18 of the bag. More precisely still according to FIG. 8, the female element 112 is formed by two lips 1120 and 1122 adapted for come to rest respectively on the sides of the male element 110. According to the Figure 8, the two lips 1120, 1122 are symmetrical. However in alternatively, two asymmetrical lips 1120, 1122 can be provided. Through elsewhere the mixed element 110 is generally rounded.
  • the sealing means 100 illustrated in FIG. 9 are identical to those of figure 8. However it will be noted that according to figure 9, the cursor 50 has bosses 520 on the internal surface of its sides 52, 54, 540 placed opposite the means 100 to guarantee the solicitation of these last in sealing position, when closing the bag.
  • the geometry of such bosses 520, 540 can be the subject of numerous variants. Alternatively, such bosses can be provided on the surface exterior of the walls 16, 18, facing the cursor, or even such bosses on the walls of the bag and other facing bosses on the cursor 50.
  • FIG. 10 Another variant embodiment according to FIG. 10 has been illustrated. which the male element 110 has a substantially triangular section. Thanks to this structure, it is guaranteed that the contact between the sides of the male element 110 and the lips 1120 and 1122 is reinforced when the male and female elements 110 and 112 are urged into reconciliation by the cursor 50.
  • the two lips 1120 and 1122 of the female element 112 are asymmetrical.
  • the lip 1120 located towards the inside of the bag relative to the male element 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 possibly directly the content thereof, such as liquid content, biases the first lip 1120 elastically against the male element 110.
  • the second lip 1122 resists such an effort and therefore does not does not deviate from the male element 110.
  • the means 100 can come from extrusion on the sheets 16, 18 making up the sachet (more precisely on the internal surface of these sheets 16, 18 according to the modes of realization of FIGS. 6 to 11 and on the external surface of these sheets according to the embodiment of FIG. 15 when the sheets 16, 18 form, at the mouth of the bag, a bellows folded towards the inside of the bag to form an opening control veil).
  • the means 100 can be formed initially on respective support webs 121, 123 reported on the sheets 16, 18, at the mouth 12 of the bag, as illustrated in Figures 12 to 14 and 1. Again we note that according to FIGS. 12 to 14, the support webs 121, 123 are fixed on the internal surface of the sheets 16, 18. On the other hand according to FIG. 16, the sheets 16, 18 forming, at the mouth of the bag, a bellows folded inwards of the bag to form an opening control veil, the support veils 121, 123 are fixed on the external surface of the sheets 16, 18.
  • the support webs 121 and 123 can be merged respectively 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 produced by any suitable conventional means, for example by welding hot or sticking.
  • non-extrusion means 100 on the films 16, 18, but reported by welding or gluing is not illustrated in the drawings appended only in FIGS. 12 to 14 and 16.
  • the use of such means 100 reported on films 16, 18 could apply to the whole variant embodiments in accordance with the invention.
  • FIG. 11 appended An alternative embodiment has been illustrated in FIG. 11 appended according to which there is provided on the one hand notches 160, 180 which open out on the external surface of the bag, respectively opposite the means 100, in this case respectively opposite the female element 112 and the male element 110, and on the other hand ribs 522 and 542 projecting from the internal surface of the sides 52 and 54 of the cursor 50, which ribs 522 and 542 are adapted to penetrate respectively into said notches 160 and 180.
  • ribs 522 and 542 and complementary notches 160, 180 are illustrated in the accompanying drawings only in FIG. 11. However, the use of such ribs 522 and 542 and notches 160, 180 may apply to all variants of realization in accordance with the invention.
  • FIG. 12 has been described previously. he essentially differs from the embodiments illustrated on the previous figures by the fact that the means 100 are carried by sails respective support 121, 123 reported on sheets 16 and 18, as indicated previously.
  • FIG. 13 has been described previously. he essentially differs from the embodiments illustrated on the previous figures by the fact that the means 100 are carried by sails respective support 121, 123 combined with the support webs 21 and 23 of the profiles 20, 22 and reported on sheets 16 and 18, as shown previously.
  • the support webs 121, 21 and 123, 23 are interconnected by a loop 24. This is arranged on inside the means 100 and has its concavity directed towards the outside of the bag.
  • these support sails 121, 21, 123, 23 and 24 form an anti-violation veil or opening indicator at mouth 12. effect of breaking this veil 24 before accessing the interior of the bag.
  • This veil anti-violation 24 is formed by a bellows folded towards the inside of the sachet, at the level of the mouth 12 in the continuity of the support sails 121, 21 and 123, 23.
  • Such a bellows 19 directed towards the inside of the bag can be shaped by any suitable known means, for example using a blade acting the bellows 19 inwards between the sheets 16, 18, as is good known to those skilled in the art.
  • condition of the veil 24 or 19 makes it possible to indicate whether an intervention has whether or not occurred on the bag 10.
  • the sachets obtained in the context of the present invention offer many advantages compared to known prior sachets.
  • notches 160, 180 and the ribs 522, 542 of the sliders 50 makes it possible to avoid any untimely withdrawal sliders 50 under the effect of the internal pressure in the sachets or else under the effect of a solicitation by a user.
  • a weld can be provided between the internal surfaces of the main sheets 16, 18 making up the bag and the sections 162, 182 forming the bellows corresponding to the anti-intrusion veil 19 as shown schematically under the reference 60 in the figures 15 and 16.
  • the bags according to the present invention can be produced on all types of known and appropriate machines, in particular on FFS (Form, Fill and Seal) type machines, i.e. machines designed to carry out training operations automatically, filling and closing of sachets.
  • FFS Form, Fill and Seal
  • the present invention applies equally well to in which the closure profiles are arranged longitudinally with reference to the direction of travel of the film only at implementations according to which the closure profiles are arranged transversely.
  • the present invention is equally applicable to implementations work according to which, the closing profiles are pre-equipped with slider when fed to the bag forming machine, than implementations where the cursor is arranged later on the profiles.
  • notches 160, 180 and ribs 522, 542 illustrated on the Figure 11 attached.
  • these notches 160, 180 and ribs 522, 542 can be the subject of numerous variant embodiments as to their straight section. So for example we can consider giving notches 522, 542 a cross section with converging edges, for example in dovetail or rail-shaped (e.g. T-shaped or others). Such a provision reinforces the retention of the cursor 50 on the sachets.
  • the sealing means 100 and the profiles of closure 20, 22 extend over the entire width of the bag.
  • the cursor 50 only extends over a limited area of this width. Consequently, the cursor 50 cannot alone solicit the sealing means 100 permanently over their entire length.
  • the closure profiles 20, 22 are adapted to automatically secure such a request P means 100 when the bag is closed.
  • the element internal 220 of the female profile 22 induces a constraint on the means sealing 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 this over any length means 100.
  • the two additional hooks C1, C2 located towards the inside of the bag define in the assembled position a width L5 between the internal faces sheets 16, 18 less than the width L6 taken between the same faces sheets 16, 18 at the pair of complementary hooks C3, C4 located towards the outside of the bag. This provision ensures the same constraint over the entire length of the means 100.
  • FIG. 17 An alternative embodiment is illustrated in FIG. 17 according to which the two elements 104, 106 respectively secured to the internal surface sheets 16, 18 are not positioned to bear by their vertex, as indicated previously with regard to FIG. 7, but are positioned to be juxtaposed and come to rest at their sides adjacent opposite 103, 105 generally perpendicular to the sheets 16 and 18.
  • the cursor 50 is provided on the ends of its lateral wings 52, 54, of respective returns 53, 55 directed inwards from the sachet.
  • These returns 53, 55 are positioned to be located beyond the sealing means 100.
  • these returns 53, 55 participate in the tightness of the bag.
  • these returns 53, 55 participate in the keeping the cursor 50 on the sachets to prevent an untimely withdrawal cursor.
  • these returns 53, 55 request the sheets 16, 18 in approach, beyond the sealing means 100.
  • the portions of support films 16, 18 located opposite the closure profiles 20, 22 and the means sealing 100 have a thickness greater than the thickness of the rest of the film making up the sachet.
  • This extra thickness of the support films 16, 18 to the right of the cursor 50 makes it possible to maintain 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 can be obtained in the form of a excess thickness formed during extrusion of the film or else may result from the fixing of supporting webs of closure profiles 20, 22 or of the means 100, as previously indicated.
  • FIG. 18 Another variant embodiment according to FIG. 18 has been illustrated. which the two elements 104, 106 respectively fixed to the surface internal of the sheets 16, 18 are provided at their top with a respective wing 1040, 1060 orthogonal audits elements.
  • said wings 1040, 1060 generally extend 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 on the contrary directed towards the outside of the bag.
  • such wings 1040, 1060 can be provided on the vertex of elements 104, 106 both inward and outward of the bag.
  • the elements 104, 106 provided with the wings 1040, 1060 have the general shape of a T.
  • FIG. 19 17 An alternative embodiment of the figure is illustrated in FIG. 19 17 according to which at least one of the two juxtaposed elements 104, 106 is fitted at its top with an orthogonal 1060 wing. This one is intended for come to rest against the internal face of the opposite sheet 16 to perfect sealing. According to Figure 19 there is shown such a wing 1060 on one only elements 106. As a variant, it is however possible to provide a such additional wing intended to come to rest against the internal face of the opposite sheet, on the top of the two elements 104, 106.
  • FIG. 20 illustrates another alternative embodiment of the Figure 17 according to which the two juxtaposed elements 104, 106 are provided at their apex with a rounded outgrowth 1042, 1062. This is intended to come to rest against the internal face of the sheet 16, 18 opposite to complete the seal.
  • Figure 20 there is provided such protuberance on the two elements 104, 106.
  • this growths 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 18 An alternative embodiment of the figure is illustrated in FIG. 21 18 according to which the cursor 50 is further provided at the ends from each of the returns 53, 55 from 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 cursor 50.
  • These additional wings 530, 550 are designed to take position in the volume defined between sheets 16, 18 and 1040, 1060 sealing means 100. It is understood on examination of the figure 21 that these wings 530, 550 ensure an undulation on the sheets 16, 18 suitable for further strengthening the tightness of the bags obtained.
  • the cursor 50 has symmetry with respect to a longitudinal plane. So according to Figures 17 to 19, each of the sides 52, 54 is provided with a return 53, 55.
  • the cursor exhibits an asymmetry in the sense that only one 52 of the flanks is provided of such a return 53 directed towards the inside of the bag.
  • FIG. 23 22 An alternative embodiment of the figure is illustrated in FIG. 23 22 according to which this return 53 is provided on its internal surface with a boss 532 directed towards the base 56 to urge the two juxtaposed elements 104, 106 supported by their adjacent sides 103, 105.
  • the boss 532 exerts on the element 104 a directed stress to base 56.
  • FIG. 24 Another variant embodiment according to FIG. 24 has been illustrated. which the portions of supporting films 16, 18 carrying the profiles of closure 20, 22 and the sealing means 100 are not located in the direct extension of the leaves making up the body of the sachet, but are shifted towards the outside of the bag at the respective recesses 1600, 1800. These 1600, 1800 recesses can be obtained by extrusion during the manufacture of the film or be obtained subsequently by folding of the film. It will be understood on examining FIG. 24 that such recesses 1600, 1800 make it easier to juxtapose the sheets 16, 18 at the exit of cursor 50, although sheets 16, 18 are necessarily separated, inside the cursor due to the presence closure profiles 20, 22 and means 100.
  • one of the 1800 recesses can itself be provided with an extension 1802 directed towards the opposite support sheet 16.
  • This extension 1802 is designed to come to rest against the dropout, 1600 opposite so the further strengthen the tightness of the bags obtained.
  • FIG. 25 illustrates an alternative embodiment according to which on the one hand there is a boss 530 or return towards the interior of the cursor on the single return 53 and on the other hand an element 106 projecting from the sheet 18.
  • the boss 530 imposes a bending or labyrinth path to the second sheet 16 at the outlet of the cursor 50, which is again suitable for strengthening the tightness of the sachet obtained.
  • FIG. 26. 17 An alternative embodiment of the figure has been illustrated in FIG. 26. 17 according to which at least one of the two elements 104 or 106 has a increasing thickness towards its apex or has a flank inclined so that it exerts a force on the other element 106 or 104 juxtaposed, in the closed position of the bag.
  • sealing means 100 comprise a curved lip, flexible and elastic 130 secured to the sheet 18 carrying the profile of female closure 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 angle in the center is greater than 180 °. According to Figure 27, the concavity of the lip 130 is directed towards the inside of the bag. Alternatively however provision could be made for the concavity of the lip 130 to be directed towards the outside of the bag.
  • FIG. 29 27 An alternative embodiment of the figure is illustrated in FIG. 29 27 that the location of the lip 130 and the geometry of this lip 130 are such as said lip 130, when it rests on the sheet 16 opposite, receives a reaction which requests it itself in support against one closure profiles, in this case the female closure profile 22.
  • FIG. 30 Another variant embodiment according to FIG. 30 has been illustrated. which such a biasing of the lip 130 bearing against the element of female closure 22 is reinforced by the presence on the internal surface flanks 52, 54 of the boss cursor 50 520, 540.
  • these bosses 520, 540 have a profile general triangular.
  • these bosses 520, 540 are not limited to this geometry and can be the subject of numerous variants of production.
  • FIG. 31 Illustrated in FIG. 31 is a side view of a sachet thus team.
  • a cursor 50 having such stressing bosses 520, 540, as well as closing profiles 20, 22 and the sealing means 100.
  • the bosses 520, 540 extend only over part of the length of the cursor 50 and also converge towards the upper base 56 of cursor 50 near the end of cursor 50 on the side opening of the bag. Thanks to this arrangement, the bosses 520, 540 stress the lip 130 in abutment against the closure profile 22, in the vicinity of the bag opening area.
  • the returns 53, 55 provided on the wings 52, 54 of the cursor 50 can converge on the base 56 near the end of the cursor 50 located on the side of the sachet opening, to improve the tightness of the bag at this level.
  • FIG. 32 Another variant embodiment according to FIG. 32 has been illustrated. which each of the two sheets 16, 18 is provided on its internal surface of an elastic lip 130 in the cylinder sector. These two lips 130 are thus resting on their top when the bag is closed.
  • At rest that is to say in the open position, at least one of the two lips 130 preferably extends beyond the profile associated closure, as shown diagrammatically in FIG. 33.
  • the cursor 50 used in the context of the alternative embodiment of the Figure 32 may also include stressing bosses 520, 540 ascending, as illustrated in figure 31, to urge these lips elastic 130 against the closing profiles 20, 22, in the bag closure.
  • each of the two support films 16, 18 is provided with a lip elastic 130, but however these are positioned not for come to rest by their top, but to be juxtaposed laterally as can be seen in FIG. 34.
  • the two lips 130 formed each of a cylinder sector having an angle at the center greater than 180 ° have their concavity directed inward and inward respectively the outside of the bag.
  • the sachet has on its mouth 12, means 150 located opposite said additional sealing means 100, relative to the profiles of closure 20, 22, and these means 150 are adapted to define a support between the opposite internal faces of the walls of the bag.
  • the cursor 50 means capable of urging the walls of the sachet, towards inside, in an area of these walls between the means additional sealing 100 and the support means 150. This guarantees that said additional means 100 are biased in a position sealing, by the slider 50.
  • this request is made to the right of closing profiles 20 and 22.
  • the additional sealing means 100 are located on the inside of the profiles closing 20, 22, while the means 150 defining the support are located on the outside of the closure sections 20, 22.
  • This arrangement comprising means 150 associated with biasing means of the sealing means 100 by the cursor 50, can apply to all of the variants previously described. They are therefore not limited to the embodiments of the figures 30 to 39. In particular this provision applies to all types of means 100, all types of closure profiles 20, 22 and all slider variants 50 or bag equipped with an anti-veil veil, etc ...
  • FIG. 35 A variant has been illustrated in FIG. 35 according to which the means additional sealing 100 are formed by two flexible lips and elastic 170, 172, symmetrical and integral respectively with the face internal walls 16 and 18, and directed towards the inside and the bottom of the bag.
  • these lips 170, 172 can be directed towards the inside of the cursor 50 (especially for example for vacuum bags).
  • the provision of support means 150 applies to all types 100 sealing means and is not limited to the means 100 of the figure 35. It can in particular be applied to lips 170, 172 not symmetrical.
  • closure profiles 20, 22 are of male / female type.
  • the invention can be applied to any other type closing profiles, in particular hook profiles.
  • the support means 150 are formed of two symmetrical elements 152, 154, respectively fixed to the faces internal walls 16, 18, at the mouth of the bag. More again precisely according to FIG. 35, each of these elements 152, 154 has a rectangular cross section and extends towards the plane median of the bag at which these elements are in mutual support, in closed position of the bag. Thus these elements 152 and 154 extend generally perpendicular to this median plane.
  • the means 100, the sections 20, 22 and the means 150 have come from material, if necessary from material, from preferably from extrusion, with walls 16, 18. More precisely again it will be noted that the sections of these walls comprised between the means sealing 100 and the support means 150 are thicker than the sheets 16, 18 making up the rest and most of the sachets. So the sections above 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 internal surface wings 52, 54, in line with the closure profiles 20, 22. This is here bosses formed by cylindrical caps, but the invention is not limited to this particular geometry.
  • the aforementioned sections define at the mouth of the bag a cross-section cage rectangular which projects from 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 set back inward, relative to them, of a value "d". It is thus defined on the walls 16 and 18 of the bag a recess which serves to support the returns 53 and 55 provided on the wings 52 and 54 of the cursor 50, to avoid a untimely withdrawal of it.
  • the aforementioned sections, between the means 100 and 150, define at the mouth of the sachet not a rectangular cross section cage, but a cage globally rounded.
  • the elements support 152, 154 are symmetrical and contact each other in the median plane of the bag. Alternatively, however, these elements 152, 154 may be asymmetrical and thus contact each other outside the median plane. So we have illustrated in FIG. 39, a variant according to which only the wall 18 is provided with a support element 154 projecting from its internal face. This element 154 is adapted to come to rest on the internal face of the opposite wall 16.
  • the means sealing 100, the closing profiles 20, 22 and the support means 150 came from material, if any material, preferably from extrusion, on the walls 16, 18.
  • these different means may have come on respective support sails, by example thermally welded or glued to the inner sides of the sheets 16, 18.
  • These can be respective and separate support sails for each means 100, profiles 20, 22 and means 150, or even sails supports common to several of these means.
  • FIG. 40 an alternative embodiment according to which the means 100, the closure sections 20, 22 and the support means 150 are carried by two respective sails, one attached to the internal face of the sheet 16, and reported the other on the internal face of the sheet 18.
  • FIG. 41 Illustrated in FIG. 41 is an alternative embodiment according to which the biasing means are formed not of bosses integral with the inner face of the wings of the cursor, but of bosses 15 projecting from the external face of the wall sections situated between the means 100 and 150, of in preference to the closure profiles 20, 22. According to yet another variant it is thus possible to provide bosses both on the cursor and on the walls of the bag.
  • FIG. 42 Another variant embodiment according to FIG. 42 has been illustrated. which the opposite ends of the elements 152 and 154 forming means are widened, to guarantee their support and prevent these elements, by offset do not find themselves adjacent, in which case the arm of expected lever to exercise the solicitation on the means 100 would not got.
  • the adjacent ends of the elements 152 and 154 have a generally triangular cross section with a base located in the contact plane.
  • the invention is not limited to this special provision.
  • FIG. 43 A variant has been illustrated in FIG. 43 according to which the cursor 50 is fitted on the inner face of its wings 52, 54 with projecting structures 522, 542 of complementary cross section of 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 converging edges. Thanks to that provision is avoided an untimely withdrawal of the cursor 50.
  • FIG. 44 Another variant embodiment according to FIG. 44 has been illustrated. which means of complementing forms between the cursor 50 and the walls of the bag, at the returns 53, 55 formed on the wings 52, 54, in the form of elements 530, 550 as described previously.
  • the elements making up the sealing means 100 can be coextruded with the bag and / or the closure profiles, a more flexible material than the material forming the latter.
  • sealing means in the context of the present invention that the means 100 are adapted (according to their geometry and / or their strength support) or to ensure a complete barrier preventing 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, ie to prohibit penetration from the outside towards the inside of the bag, or prohibit a leak from the inside to the outside of the bag.
  • the means sealing 100 may not be placed opposite the sides 52, 54, of the cursor, but outside of it. In other words, in this case, the end of the cursor is located between these means 100 and the profiles of closing 20, 22.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
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
FR9813734A FR2785259B1 (fr) 1998-11-02 1998-11-02 Sachet comprenant des profiles de fermeture complementaires actionnes par curseur
FR9813734 1998-11-02

Publications (3)

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EP1000559A2 true EP1000559A2 (de) 2000-05-17
EP1000559A3 EP1000559A3 (de) 2000-08-16
EP1000559B1 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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US7163133B2 (en) 2004-03-05 2007-01-16 S.C. Johnson Home Storage, Inc. Apparatus for and method of moving a slider along mating zipper elements
US7244222B2 (en) 2004-03-05 2007-07-17 S.C. Johnson Home Storage, Inc. Apparatus for and method of positioning a slider on mating zipper elements

Also Published As

Publication number Publication date
DK1000559T3 (da) 2008-04-28
EP1000559A3 (de) 2000-08-16
DE69937869D1 (de) 2008-02-14
ES2297916T3 (es) 2008-05-01
FR2785259B1 (fr) 2001-12-07
FR2785259A1 (fr) 2000-05-05
EP1000559B1 (de) 2008-01-02
DE69937869T2 (de) 2009-01-02
US6305844B1 (en) 2001-10-23

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