US20100209020A1 - Closure assembly for packaging bags - Google Patents
Closure assembly for packaging bags Download PDFInfo
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- US20100209020A1 US20100209020A1 US12/707,550 US70755010A US2010209020A1 US 20100209020 A1 US20100209020 A1 US 20100209020A1 US 70755010 A US70755010 A US 70755010A US 2010209020 A1 US2010209020 A1 US 2010209020A1
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- webs
- closure assembly
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- 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
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- 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
- B65D33/2516—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 comprising tamper-indicating means, e.g. located within the fastener
- B65D33/2533—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 comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
Definitions
- the present invention concerns the field of packaging bags.
- the present invention concerns the field of packaging bags comprising closure means in the form of complementary sections.
- Most of the known closure assemblies to that end comprise two complementary elements 100 , 200 , for example of the male/female type or the velvet/hooks type or the complementary hooks type, supported by respective support webs 150 , 250 , as illustrated in the appended FIG. 1 .
- Such support webs 150 , 250 can be attached on the films making up the bag or made by extrusion with these films.
- FIG. 4 more precisely illustrates the mouth of a resealable bag known from that document.
- the arrangements illustrated in FIG. 4 aim to limit the risk of pressure inside the bag tending to separate the closure elements 100 , 200 .
- FIG. 4 we see the two main walls 10 , 20 of a bag, at the mouth thereof.
- a closure assembly comprising two complementary closure elements 100 , 200 supported by respective webs 150 , 250 fixed on the films 10 and 20 , respectively.
- the fixing zones of the support webs 150 , 250 on the films 10 and 20 are referenced 152 and 252 .
- zone 152 for fixing the support web 150 on the film 10 is not superimposed on the male element 100 , but offset relative thereto. Alternatively this could involve offsetting the zone 252 for fixing the support web 250 on the film 20 in relation to the female element 200 .
- the web 150 forming support for the male element 100 is articulated on the film 10 at the fixing zone 152 . It is indicated in document FR-A-2628067 that owing to this arrangement, the pressure inside the bag leads a possible pivoting of the support web 150 at the hinge zone formed by its fastening 152 , without risk of separation of the closure elements 100 and 200 .
- FIG. 5 we have illustrated an alternative embodiment also described in document FR-A-2628067 according to which the two support webs 150 , 250 are fixed on the respective films 10 and 20 at localized zones 152 , 252 not superimposed with the closure elements 100 and 200 .
- the present invention now aims to improve the prior art by proposing new means making it possible to limit the risk of untimely opening of the closure means under the effect of pressure inside the bag.
- the invention thus in particular aims to limit the risk of opening during handling or during storage or stacking of bags.
- a closure assembly including two complementary elements supported by respective webs, characterized by the fact that said two complementary elements are supported by primary webs coextruded with said two complementary elements and that the closure assembly also comprises secondary webs coextruded with said two complementary elements, designed to be connected to the walls of the bag and which are connected to the primary webs at respective articulations formed by extrusion and situated in line with the connection zones of a pair of complementary closure elements on the primary nets and additional rows of complementary elements, supported by the primary webs of at least one side of the articulation zones.
- the realization of the entire closure assembly comprising the closure elements, the primary webs and the secondary webs, by extrusion, makes it possible to localize the articulation zones completely reliably.
- auxiliary webs connected at least semi-rigidly to the primary webs, respectively.
- no such auxiliary opening webs are provided or only auxiliary webs flexibly articulated on the primary webs.
- the present invention also concerns the bags equipped with a closure assembly of the aforementioned type.
- FIG. 1 previously described diagrammatically illustrates a closure device or a mouth of a bag according to the prior art
- FIGS. 2 , 3 , 4 and 5 previously described diagrammatically illustrate closure devices or mouths of bags according to alternative embodiments known from the prior art, in particular from documents U.S. Pat. No. 3,347,298, U.S. Pat. No. 4,430,070 and U.S. Pat. No. 4,817,188,
- FIG. 6 is a partial cross-sectional view of a closure device designed to equip the mouth of a bag, according to a first embodiment of the present invention
- FIGS. 7 and 8 respectively illustrate the stresses exerted on such a closure assembly during an opening attempt from the outside on one hand and under the effect of the pressure inside the bag on the other,
- FIG. 9 illustrates an alternative embodiment of a closure assembly according to the present invention having dissymmetrical complementary elements
- FIGS. 10 , 11 and 12 illustrate three other alternative embodiments of a closure assembly according to the present invention
- FIGS. 13 and 14 respectively illustrate a closure assembly according to the present invention connected to the walls of a bag and a closure assembly according to the present invention attached on the walls of a bag
- FIGS. 15 and 16 illustrate two alternative embodiments of a closure assembly according to the present invention provided with an opening indicator
- FIGS. 17 and 18 illustrate two alternative embodiments of a closure assembly according to the present invention equipped with an operating slide
- FIGS. 19 and 20 illustrate two alternative embodiments according to the present invention of a closure device designed to allow difficult opening, both under pressure from inside the bag, and from outside the bag,
- FIG. 21 illustrates an alternative embodiment of a closure assembly according to the invention comprising ridges on support webs
- FIG. 22 illustrates an alternative embodiment of a closure assembly according to the invention comprising an additional articulated sealing web
- FIG. 23 illustrates a cross-sectional view of a specific embodiment of a closure assembly according FIGS. 6 and 10 in its principle
- FIG. 24 illustrates an alternative embodiment from FIG. 23 .
- FIG. 25 illustrates a cross-sectional view of a specific embodiment of a closure assembly according to FIG. 20 in its principle
- FIGS. 26 and 27 illustrate two alternative embodiments of closure assemblies according to the present invention including additional sealing means.
- the closure assembly according to the present invention is realized entirely by extrusion, in thermoplastic material, for example polyethylene- or polypropylene-based.
- FIG. 6 we have illustrated a closure assembly according to the present invention comprising two complementary elements 100 a , 200 a supported by primary webs 160 , 260 .
- the complementary elements 100 , 200 are made up of elements of the male/female type, with complementary shapes. In their general structure, such male/female complementary elements are well-known by those skilled in the art. They therefore will not be described in further detail below.
- the closure assembly also comprises secondary webs 170 , 270 designed to be connected to the main walls of the bag.
- the secondary webs 170 , 270 are connected to the primary webs 160 , 260 at respective flexible articulations 172 , 272 situated in line with the connection zones 102 , 202 of the closure elements 100 a , 200 a on the primary webs 160 , 260 .
- “Situated in line with the connection zones 102 , 202 ” signifies that the articulations 172 , 272 of the secondary webs 170 , 270 are placed opposite said connection zones 102 , 202 , and not above or below them.
- the primary webs 160 , 260 extend on either side of the connection zones 102 and 202 .
- the section of the primary webs 160 , 260 which extends toward the inside of the bag is referenced 162 , 262 .
- the section of the primary webs 160 , 260 which extends toward the outside of the bag is referenced 164 , 264 .
- the intrinsic rigidity of the external sections 164 , 264 of the primary webs and the rigidity of the connection existing between these external sections 164 , 264 of the primary webs and the closure elements 100 a , 200 a are greater than the rigidity of the articulation connection 172 , 272 defined between the secondary webs 170 , 270 and the primary webs 160 , 260 .
- the external sections 164 , 264 of the primary webs 160 , 260 constitute auxiliary opening webs respectively connected at least semi-rigidly to the primary webs 160 , 260 allowing easy opening of the bag from the outside thereof.
- each of the primary webs 160 , 260 supports a plurality of complementary elements 100 , 200 capable of engaging.
- complementary elements 100 a , 200 a , 100 b , 200 b and 100 c , 200 c are three levels of complementary elements 100 a , 200 a , 100 b , 200 b and 100 c , 200 c . This number is not, however, limiting.
- the complementary elements supported by the primary webs 160 , 260 are mixed, in the sense that they comprise a first level of complementary element 100 a , 200 a of the male/female type in line with the articulation zones 172 , 272 of the secondary webs 170 , 270 , and two additional levels of complementary elements 100 b , 200 b and 100 c , 200 c of the hooks type, on the inside of the bag in relation to the first level of aforementioned complementary elements 100 a , 200 a.
- FIG. 7 we have illustrated the stresses applied on such a closure assembly during an opening attempt from outside a bag.
- the disengagement of the complementary elements 100 , 200 illustrated in FIG. 7 is also due to the change of relative positioning of the complementary elements 100 , 200 resulting from the stress.
- closure assembly according to the present invention leads to easy opening when a stress is exerted from the outside as illustrated in FIG. 7 and on the contrary to strengthening the engagement and closure under the effect of the internal pressure as illustrated in FIG. 8 .
- At least one of the closure means 100 , 200 can be dissymmetrical in order to facilitate the deformation and separation of the closure elements when a stress is exerted from the outside and on the contrary to maintain, or even strengthen, the engagement of the elements 100 and 200 under the effect of the pressure inside the bag.
- the internal branch 204 of the female closure element 200 is thicker and more rigid than its external element 206 .
- other alternative dissymmetries can be considered, including a dissymmetry of each of the two elements 100 and 200 .
- FIG. 10 we have shown an alternative embodiment according to which the different complementary elements are all formed by arrowhead elements comprising a foot 110 , 210 and a flared tip 112 , 212 in convex V toward the opposite primary web 160 , 260 .
- each web 160 , 260 supports three arrowhead elements designed to become interlinked with the complementary elements supported by the opposite web.
- the webs 160 , 260 and the complementary elements supported by them are therefore globally symmetrical.
- FIG. 11 we have shown an alternative embodiment according to which the additional levels of complementary elements are replaced by two flanges 120 , 220 respectively supported by the internal end of the primary webs 160 , 260 .
- Such flanges 120 , 220 by maintaining a separation between the support webs 160 and 260 , limit the opening risk of the complementary elements 100 , 200 by lever arm effect under the effect of the internal pressure. It also strengthens the sealing of the closure assembly by mutual bearing.
- FIG. 12 illustrates an alternative embodiment according to which the two flanges 120 , 220 are replaced by a single flange 130 supported by the internal end of the primary web 160 .
- FIG. 13 we have illustrated an alternative embodiment of sack or bag according to which a closure assembly according to the invention is connected to the main walls 10 , 20 of the bag.
- a closure assembly according to the invention is connected to the main walls 10 , 20 of the bag.
- FIG. 13 we see two main films 10 , 20 making up the bag in a manner traditional in itself. The particular terms for realizing such a hag, in its general structure, will not be described in detail below.
- the walls 10 , 20 of the bag can be the object of many embodiments.
- These walls can be single- or multi-layer and single- or multi-material. If necessary, it can be a paper support coated with a layer of thermoplastic material, or a metalized thermoplastic layer.
- the bag can be realized using a single sheet folded on itself and welded on three sides or using several sheets, for example two sheets welded together at their edges, preferably along ridges connecting the main walls.
- FIG. 14 we have illustrated an alternative embodiment according to which the bag is realized by supply and welding or sticking of a closure assembly according to the invention on films 10 , 20 .
- the welding zones of the closure assembly on the films 10 , 20 are referenced 12 , 22 .
- FIG. 15 we have illustrated an alternative embodiment according to which a web or film 140 is provided forming opening indicator which initially connects the free edges of the internal sections 162 , 262 of the primary webs 160 , 260 .
- a web or film 140 is provided forming opening indicator which initially connects the free edges of the internal sections 162 , 262 of the primary webs 160 , 260 .
- One skilled in the art will understand that such a web 140 must be broken upon the first use, i.e. during the first opening of the bag. The breaking of the film 140 makes it possible to visualize that first opening.
- the film 140 also makes it possible to strengthen the sealing of the bag.
- the web 140 can include a weak point 142 , preferably in its median portion, for example in the form of a less thick zone or a zone in a more fragile material, in order to localize the preferential break line of that web 140 .
- FIG. 16 we have illustrated another alternative embodiment of a closure assembly according to the present invention comprising a film or web 144 forming opening indicator and sealing strengthener initially connecting the free edges of the outer sections 164 , 264 of the primary webs 160 , 260 .
- the operation of such an indicator web 144 remains equivalent to that of the web 140 illustrated in FIG. 15 .
- the web 144 can also include a weak zone 146 comparable to that 142 of the web 140 .
- FIG. 17 we have illustrated an alternative embodiment of a closure assembly according to the present invention comprising an operating slide 300 .
- a slide 300 can in fact be used for all of the alternative embodiments of the closure assembly proposed in the framework of the present invention.
- Such a slide 300 is known in itself in its general structure. It will therefore not be described in detail below. It will simply be recalled that in general, such a slide 300 comprises a sole 302 which supports two side webs 304 , 306 and a central wall 308 defining between them two non-parallel channels 310 , 312 respectively receiving at least the apex of one of the two primary webs 160 , 260 of the closure assembly or walls 10 , 20 . Thus depending on the direction of movement of the slide 300 , the latter part stresses the complementary closure elements 100 , 200 upon opening and closure, respectively.
- FIG. 17 can be completed by a film or web 140 forming opening indicator and sealing strengthener initially connecting the free edges of the inner sections 162 , 262 of the primary webs 160 , 260 comparable to FIG. 15 .
- FIG. 18 we have shown an alternative embodiment of a closure assembly according to the present invention comprising such a slide 300 also covered by a film or web 148 forming an opening indicator.
- the film 148 overlaps the slide 300 and is connected to the primary webs 160 , 260 or to the secondary webs 170 , 270 , typically at the articulation zones 172 , 272 .
- this web 148 must be broken during the first use in order to allow access to the slide 300 .
- the web 148 includes a line of weakness 149 similar to lines of weakness 142 , 146 .
- FIGS. 19 and 20 correspond to embodiments of closure devices according to the present invention, adapted to make opening difficult both under an internal stress and an external stress, once the device is placed in the closure position.
- FIG. 19 we have illustrated an alternative embodiment which differs from that illustrated in FIG. 6 by the fact that the primary webs 160 , 260 are interrupted at articulation zones 172 , 272 .
- no auxiliary opening webs 164 , 264 are provided.
- FIG. 20 we have illustrated an alternative embodiment which differs from FIG. 10 by the fact that additional auxiliary webs 190 , 290 are provided oriented toward the outside of the closure assembly. These additional auxiliary webs 190 , 290 are also flexibly articulated on the primary webs 160 , 260 , at articulation zones 172 , 272 .
- a traction is exerted perpendicularly to the primary webs 160 , 260 comparable to the illustration of FIG. 8 , without risk of opening of the closure device and the bag.
- the primary webs 160 , 260 extend on either side of the articulation zone 172 , 272 and the closure assembly comprises secondary webs 170 , 270 and additional auxiliary webs 190 , 290 all flexibly articulated in 172 , 272 on the primary webs 160 , 260 .
- closure assemblies can be used to equip single-use bags, for example to store securities, bank products or other such products, or any other product, for example all food or household products or their equivalents in a single-use bag.
- a line of weakness can be provided on a localized zone of the closure devices illustrated in FIGS. 19 and 20 , for example at one of the articulation zones 172 or 272 , in order to monitor and confine the tear zone, when an opening is forced, in order to clearly visualize that opening.
- one may for example provide for elongating at least one of the articulation zones 172 , 272 in the form of a rod connecting the external surface of a primary web 160 , 260 and the internal surface of a secondary web 170 , 270 , and at which said line of weakness is provided.
- each of the alternatives can comprise complementary elements 100 , 200 of any type whatsoever (in particular male/female type, hooks, or similar), be connected to the films of a bag or attached on these films, include or not include a film forming opening indicator which must be broken upon the first use, include or not include an operating slide.
- complementary elements 100 , 200 of any type whatsoever in particular male/female type, hooks, or similar
- be connected to the films of a bag or attached on these films include or not include a film forming opening indicator which must be broken upon the first use, include or not include an operating slide.
- FIG. 21 we have illustrated another alternative embodiment according to the present invention according to which the primary webs 160 , 260 are provided with ridges 165 , 265 facilitating the gripping and identification of the webs 160 260 .
- Such an arrangement is known by those skilled in the art and will not be described in detail below.
- FIG. 22 we have also shown another alternative embodiment in which one finds, as for all of the embodiments according to the present invention illustrated in FIGS. 6 to 21 , two complementary elements 100 , 200 coextruded with primary webs 160 , 260 and secondary webs 170 , 270 designed to be connected to the walls 10 , 20 of the bag and which are connected to the primary webs 160 , 260 at articulations 172 , 272 situated in line with connecting zones of the closure elements 100 , 200 on the primary webs 160 , 260 .
- the embodiment illustrated in FIG. 22 also comprises two additional complementary elements 105 , 205 , at least one of which, in this case the element 105 , is supported by an additional articulated sealing web 107 .
- This additional sealing web 107 is itself connected to one of the primary webs 160 , 260 , in this case the primary web 160 , at a zone 108 not superimposed on the corresponding closure element 105 . Furthermore the additional articulated web 107 extends beyond the closure element 105 such that upon engagement of the additional complementary closure elements 105 , 205 , the end 109 of the articulated web 107 bears on an opposite structure, in this case the opposite primary web 260 .
- the preceding arrangement is according to the patent application filed by the Applicant on Dec. 17, 2008 under No. FR 08 58680. It therefore will not be described in more detail below. This arrangement, which makes it possible to strengthen the sealing of the closure device and of the bag, can in itself be the object of different alternative embodiments, as indicated in application FR 08 58680.
- FIG. 23 we have illustrated a cross-section of a specific embodiment of a closure assembly according, in its principle, to FIGS. 6 and 10 . Indeed in FIG. 23 we find an embodiment according to which each primary web 160 , 260 supports three arrowhead elements 100 , 200 designed to become interlinked with the complementary elements supported by the opposite web. Also provided are extensions toward the outside of the primary webs 160 , 260 in the form of sections 164 , 264 and secondary webs 170 , 270 articulated on the primary webs 160 , 260 , at articulations 172 , 272 .
- the external sections 164 , 264 of the primary webs 160 , 260 are globally situated in the extension of the secondary webs 170 , 270 .
- the primary webs 160 , 260 are thus connected to the outer sections 164 , 264 via respective at least semi-rigid recesses 166 , 266 , outwardly oriented from the primary webs 160 , 260 .
- the secondary webs 170 , 270 are provided with a zone of small thickness forming the articulation 172 , 272 , near the aforementioned recesses 166 , 266 .
- the primary webs 160 , 260 , the complementary elements 100 , 200 supported by them, the secondary webs 170 , 270 and the sections 164 , 264 are globally symmetrical.
- FIG. 24 illustrates an alternative embodiment from FIG. 23 which differs from the latter figure by the fact that according to FIG. 24 , the external sections 164 , 264 of the primary webs 160 , 260 are globally situated in the extension of the primary webs 160 , 260 and are at least semi-rigidly connected thereto.
- the secondary webs 170 , 270 are connected to the primary webs 160 , 260 via respective flexible recesses 166 , 266 outwardly oriented from the primary webs 160 , 260 .
- the recesses 166 , 266 are advantageously made up here of zones of small thickness forming the articulation 172 , 272 .
- the primary webs 160 , 260 , the complementary elements 100 , 200 supported by them, the secondary webs 170 , 270 and the sections 164 , 264 are again globally symmetrical here.
- FIG. 25 illustrates a cross-sectional view of a specific embodiment of a closure assembly according, in its principle, to FIG. 10 .
- the primary webs 160 , 260 extend on either side of the articulation zones 172 , 272 and the closure assembly comprises secondary webs 170 , 270 and additional auxiliary webs 190 , 290 all flexibly articulated in 172 , 272 on the primary webs 160 , 260 .
- the secondary webs 170 , 270 and the additional auxiliary webs 190 , 290 are globally aligned, respectively.
- a pair of complementary elements 100 , 200 is provided in line with the articulation zones 172 , 272 of the secondary webs 170 , 270 , and additional rows of such complementary elements 100 a , 200 a and 100 b , 200 b are also provided, on either side of the articulation zones 172 , 272 , respectively.
- These additional rows of complementary elements 100 a , 200 a and 100 b , 200 b reinforce the assurance of difficult opening by avoiding a change of relative position between the primary webs 160 , 260 regardless of the origin of the stress, internal or external.
- the articulation zones 172 , 272 are made up of recesses oriented outwardly from the primary webs 160 , 260 .
- the primary webs 160 , 260 , the complementary elements 100 , 200 supported by them, the secondary webs 170 , 270 and the additional auxiliary webs 190 , 290 are globally symmetrical.
- FIGS. 26 and 27 we have illustrated two alternative embodiments which differ from the embodiments illustrated in FIGS. 10 and 20 , respectively, by the fact that one of the primary webs 260 is extended in its inner end by a return 292 , adapted to overlap the free inner edge of the opposite primary web 160 and thereby strengthen the sealing of the assembly, in closed position.
- the return 292 is convex toward the inside of the bag.
- closure assemblies according to the present invention are made up of two symmetrical sub-assemblies (see for example FIGS. 10 , 13 to 16 , 19 to 21 , 23 to 25 ).
- Such a symmetry offers many advantages. It makes it possible to realize the closure assembly using a single extrusion die and therefore a low cost. It also makes it possible to realize the closure assembly by folding a sub-assembly on itself. It avoids having to differentiate two separate subassemblies, for example including male and female closure elements, respectively.
- the closure assembly can:
- a web forming opening indicator which includes a weak point, preferably in its median portion, for example in the form of a zone of smaller thickness or a zone in a more fragile material, in order to localize the preferred break line of that web,
- additional closure elements comprise additional closure elements, an additional articulated sealing web which supports one of the additional closure elements, said additional web itself being connected to one of the primary webs, at a zone not superimposed on the corresponding additional closure element and which extends beyond this additional closure element such that upon engagement of the additional complementary closure elements, the end of the articulated web bears on an opposite structure, for example the opposite primary web,
- thermoplastic material for example polyethylene- or polypropylene-based
- complementary closure elements which are of the male/female type with complementary shapes, the complementary hooks type or the complementary arrowhead type,
- each web which supports three arrowhead element designed to become interlinked with the complementary elements supported by the opposite web,
- the primary webs which each support three arrowhead elements designed to become interlinked with the complementary elements supported by the opposite web, extensions toward the outside of the primary webs in the form of sections and secondary webs articulated on the primary webs, at articulations, the external sections of the primary webs being globally situated in the extension of the secondary webs, the primary webs being thus connected to the external sections via respective at least semi-rigid recesses, oriented outwardly from the primary webs, and the secondary webs being provided with a zone of smaller thickness forming the articulation, near the recesses,
- the primary webs which each support three arrowhead elements designed to become interlinked with the complementary elements supported by the opposite web, extensions toward the outside of the primary webs in the form of sections and secondary webs articulated on the primary webs, at articulations, the external sections of the primary webs being globally situated in the extension of the primary webs and being at least semi-rigidly connected thereto, the secondary webs being connected to the primary webs via respective flexible recesses oriented outwardly from the primary webs and the recesses being made up of zones of small thickness forming the articulation,
- primary webs which extend on either side of the articulation zone
- secondary webs and additional auxiliary webs articulated flexibly on the primary webs
- the secondary webs and the additional auxiliary webs being globally aligned, respectively, a pair of complementary elements in line with articulation zones of the secondary webs, additional rows of complementary elements, on either side of the articulation zones, respectively, the articulation zones being made up of recesses oriented outwardly from the primary webs
Abstract
The present invention concerns a closure assembly comprising two complementary elements (100, 200) supported by respective webs, characterized by the fact that said two complementary elements (100, 200) are supported by primary webs (160, 260) coextruded with said two complementary elements (100, 200) and that the closure assembly also comprises secondary webs (170, 270) coextruded with said two complementary elements (100, 200), designed to be connected to the walls (10, 20) of the bag and which are connected to the primary webs (160, 260) at respective articulations (172, 272) formed by extrusion and situated in line with connection zones (102, 202) of a pair of complementary closure elements (100, 200) on the primary webs (160, 260) and additional rows of complementary elements (100 b, 200 b; 100 c, 200 c) supported by the primary webs (160, 260) of at least one side of the articulation zones (172, 272).
Description
- The present invention concerns the field of packaging bags.
- More specifically, the present invention concerns the field of packaging bags comprising closure means in the form of complementary sections.
- Many packaging bags and many closure assemblies have already been proposed to that end.
- Most of the known closure assemblies to that end comprise two
complementary elements respective support webs FIG. 1 .Such support webs - For many years the desire has been expressed to have closure assemblies corresponding to the aforementioned principle, but having an opening difficulty under the effect of a stress coming from inside the bag. Such a problem aims to avoid untimely opening of bags equipped with such closure assemblies.
- In 1965 were thus proposed, in document U.S. Pat. No. 3,347,298, closure assemblies of the type illustrated in the appended
FIG. 2 according to which thefemale element 200 has a widenedbase 201 on its outer side, in order to make opening easier under the effect of an external stress than under the effect of an internal stress. These closure assemblies did not, however, experience real industrial developments. - In 1981, in document U.S. Pat. No. 4,430,070, it was proposed to realize closure assemblies of the type illustrated in the appended
FIG. 3 by fasteningfilms complementary elements films complementary elements films complementary elements FIGS. 5 and 6 , alternative embodiments according to which thefilms closure elements FIG. 3 also did not experience real industrial developments. Without explaining it completely, it was considered that these closure assemblies were not completely satisfactory inasmuch as the hinge effect remains random due to the difficulty of precisely locating the connection zone between thefilms closure elements closure elements films closure elements - In 1988 in document FR-A-2628067 were proposed closure assemblies of the type illustrated in the appended
FIG. 4 .FIG. 4 more precisely illustrates the mouth of a resealable bag known from that document. The arrangements illustrated inFIG. 4 aim to limit the risk of pressure inside the bag tending to separate theclosure elements - In the appended
FIG. 4 , we see the twomain walls FIG. 4 , a closure assembly comprising twocomplementary closure elements respective webs films - More specifically, the fixing zones of the
support webs films - One will note upon examining
FIG. 4 , that thezone 152 for fixing thesupport web 150 on thefilm 10 is not superimposed on themale element 100, but offset relative thereto. Alternatively this could involve offsetting thezone 252 for fixing thesupport web 250 on thefilm 20 in relation to thefemale element 200. - Thus, the
web 150 forming support for themale element 100 is articulated on thefilm 10 at thefixing zone 152. It is indicated in document FR-A-2628067 that owing to this arrangement, the pressure inside the bag leads a possible pivoting of thesupport web 150 at the hinge zone formed by itsfastening 152, without risk of separation of theclosure elements - In
FIG. 5 we have illustrated an alternative embodiment also described in document FR-A-2628067 according to which the twosupport webs respective films zones closure elements - The present invention now aims to improve the prior art by proposing new means making it possible to limit the risk of untimely opening of the closure means under the effect of pressure inside the bag. The invention thus in particular aims to limit the risk of opening during handling or during storage or stacking of bags.
- The aforementioned aim is achieved in the framework of the present invention owing to a closure assembly including two complementary elements supported by respective webs, characterized by the fact that said two complementary elements are supported by primary webs coextruded with said two complementary elements and that the closure assembly also comprises secondary webs coextruded with said two complementary elements, designed to be connected to the walls of the bag and which are connected to the primary webs at respective articulations formed by extrusion and situated in line with the connection zones of a pair of complementary closure elements on the primary nets and additional rows of complementary elements, supported by the primary webs of at least one side of the articulation zones.
- As we will explain below, the preceding features make it possible to prevent the pressure inside the bag from separating the sections. In fact, owing to these features pressure inside the bag leads to traction exerted by the secondary webs, which tends to strengthen the hooking of the complementary closure elements.
- Moreover, the realization of the entire closure assembly comprising the closure elements, the primary webs and the secondary webs, by extrusion, makes it possible to localize the articulation zones completely reliably.
- When one wishes to allow easy opening of the bag from the outside thereof, provided, on the closure assembly, are open auxiliary webs connected at least semi-rigidly to the primary webs, respectively. On the contrary, when one wishes to make opening quasi-impossible from the outside of the bag, no such auxiliary opening webs are provided or only auxiliary webs flexibly articulated on the primary webs.
- The present invention also concerns the bags equipped with a closure assembly of the aforementioned type.
- Other characteristics, aims and advantages of the present invention will appear upon reading the following detailed description, and in light of the appended drawings, provided as non-limiting examples and in which:
- the appended
FIG. 1 previously described diagrammatically illustrates a closure device or a mouth of a bag according to the prior art, - the appended
FIGS. 2 , 3, 4 and 5 previously described diagrammatically illustrate closure devices or mouths of bags according to alternative embodiments known from the prior art, in particular from documents U.S. Pat. No. 3,347,298, U.S. Pat. No. 4,430,070 and U.S. Pat. No. 4,817,188, -
FIG. 6 is a partial cross-sectional view of a closure device designed to equip the mouth of a bag, according to a first embodiment of the present invention, -
FIGS. 7 and 8 respectively illustrate the stresses exerted on such a closure assembly during an opening attempt from the outside on one hand and under the effect of the pressure inside the bag on the other, -
FIG. 9 illustrates an alternative embodiment of a closure assembly according to the present invention having dissymmetrical complementary elements, -
FIGS. 10 , 11 and 12 illustrate three other alternative embodiments of a closure assembly according to the present invention, -
FIGS. 13 and 14 respectively illustrate a closure assembly according to the present invention connected to the walls of a bag and a closure assembly according to the present invention attached on the walls of a bag, -
FIGS. 15 and 16 illustrate two alternative embodiments of a closure assembly according to the present invention provided with an opening indicator, -
FIGS. 17 and 18 illustrate two alternative embodiments of a closure assembly according to the present invention equipped with an operating slide, -
FIGS. 19 and 20 illustrate two alternative embodiments according to the present invention of a closure device designed to allow difficult opening, both under pressure from inside the bag, and from outside the bag, -
FIG. 21 illustrates an alternative embodiment of a closure assembly according to the invention comprising ridges on support webs, -
FIG. 22 illustrates an alternative embodiment of a closure assembly according to the invention comprising an additional articulated sealing web, -
FIG. 23 illustrates a cross-sectional view of a specific embodiment of a closure assembly accordingFIGS. 6 and 10 in its principle, -
FIG. 24 illustrates an alternative embodiment fromFIG. 23 , -
FIG. 25 illustrates a cross-sectional view of a specific embodiment of a closure assembly according toFIG. 20 in its principle, and -
FIGS. 26 and 27 illustrate two alternative embodiments of closure assemblies according to the present invention including additional sealing means. - The closure assembly according to the present invention is realized entirely by extrusion, in thermoplastic material, for example polyethylene- or polypropylene-based.
- In the appended
FIG. 6 , we have illustrated a closure assembly according to the present invention comprising twocomplementary elements primary webs complementary elements primary webs FIG. 6 , thecomplementary elements - Upon examining the appended
FIG. 6 , one will note that according to the invention the closure assembly also comprisessecondary webs secondary webs primary webs flexible articulations connection zones closure elements primary webs connection zones articulations secondary webs connection zones - According to the embodiment illustrated in
FIG. 6 , theprimary webs connection zones primary webs primary webs - As we will explain below, in order to allow easy opening of this assembly, from the outside, the intrinsic rigidity of the
external sections external sections closure elements articulation connection secondary webs primary webs - Thus the
external sections primary webs primary webs - Even more specifically, as seen in the appended
FIG. 6 , each of theprimary webs complementary elements FIG. 6 , thus provided are three levels ofcomplementary elements - Moreover, in
FIG. 6 we see that the complementary elements supported by theprimary webs complementary element articulation zones secondary webs complementary elements complementary elements - Aside from the fact that providing several levels of complementary elements makes it possible to strengthen the closure of the bag, one skilled in the art will understand that the use of additional
complementary element levels complementary elements articulation zones complementary elements - In
FIG. 7 , we have illustrated the stresses applied on such a closure assembly during an opening attempt from outside a bag. - As seen in
FIG. 7 , when theupper portions primary webs primary webs complementary elements complementary elements - One skilled in the art will in fact appreciate, upon compared examination of
FIGS. 6 and 7 , that in particular when a stress is applied on theupper portion primary webs FIG. 7 , the accumulated length between the fixingpoints complementary elements primary webs complementary elements FIG. 6 . - The disengagement of the
complementary elements FIG. 7 is also due to the change of relative positioning of thecomplementary elements - On the contrary in
FIG. 8 , we have illustrated the stress applied to the closure assembly under the effect of the pressure inside the bag. - As seen in
FIG. 8 , owing to theflexible articulation secondary webs primary webs primary webs complementary elements - Thus, one skilled in the art understands upon comparative examination of
FIGS. 6 , 7 and 8 that the closure assembly according to the present invention leads to easy opening when a stress is exerted from the outside as illustrated inFIG. 7 and on the contrary to strengthening the engagement and closure under the effect of the internal pressure as illustrated inFIG. 8 . - As illustrated in
FIG. 9 , if necessary, at least one of the closure means 100, 200 can be dissymmetrical in order to facilitate the deformation and separation of the closure elements when a stress is exerted from the outside and on the contrary to maintain, or even strengthen, the engagement of theelements - More specifically according to the embodiment illustrated in
FIG. 9 , theinternal branch 204 of thefemale closure element 200 is thicker and more rigid than itsexternal element 206. Of course other alternative dissymmetries can be considered, including a dissymmetry of each of the twoelements - In
FIG. 10 we have shown an alternative embodiment according to which the different complementary elements are all formed by arrowhead elements comprising afoot tip primary web - More specifically according to the non-limiting embodiment of
FIG. 10 , eachweb webs - In
FIG. 11 , we have shown an alternative embodiment according to which the additional levels of complementary elements are replaced by twoflanges primary webs Such flanges support webs complementary elements -
FIG. 12 illustrates an alternative embodiment according to which the twoflanges single flange 130 supported by the internal end of theprimary web 160. - In
FIG. 13 , we have illustrated an alternative embodiment of sack or bag according to which a closure assembly according to the invention is connected to themain walls FIG. 13 we see twomain films - The
walls - These walls can be single- or multi-layer and single- or multi-material. If necessary, it can be a paper support coated with a layer of thermoplastic material, or a metalized thermoplastic layer.
- The bag can be realized using a single sheet folded on itself and welded on three sides or using several sheets, for example two sheets welded together at their edges, preferably along ridges connecting the main walls.
- In the appended
FIG. 14 , we have illustrated an alternative embodiment according to which the bag is realized by supply and welding or sticking of a closure assembly according to the invention onfilms FIG. 14 , the welding zones of the closure assembly on thefilms - Of course, the realization of bags as illustrated in
FIGS. 13 and 14 , whether with a closure assembly connected on thefilms FIG. 13 or a closure assembly attached on thefilms FIG. 14 , applies to all of the alternative embodiments of the closure assembly according to the present invention. - In
FIG. 15 , we have illustrated an alternative embodiment according to which a web orfilm 140 is provided forming opening indicator which initially connects the free edges of theinternal sections primary webs web 140 must be broken upon the first use, i.e. during the first opening of the bag. The breaking of thefilm 140 makes it possible to visualize that first opening. - The
film 140 also makes it possible to strengthen the sealing of the bag. - If necessary the
web 140 can include aweak point 142, preferably in its median portion, for example in the form of a less thick zone or a zone in a more fragile material, in order to localize the preferential break line of thatweb 140. - In
FIG. 16 , we have illustrated another alternative embodiment of a closure assembly according to the present invention comprising a film or web 144 forming opening indicator and sealing strengthener initially connecting the free edges of theouter sections primary webs web 140 illustrated inFIG. 15 . If necessary, the web 144 can also include aweak zone 146 comparable to that 142 of theweb 140. - In
FIG. 17 , we have illustrated an alternative embodiment of a closure assembly according to the present invention comprising anoperating slide 300. - Such a variation is applicable to all of the embodiments according to the present invention.
- A
slide 300 can in fact be used for all of the alternative embodiments of the closure assembly proposed in the framework of the present invention. - Such a
slide 300 is known in itself in its general structure. It will therefore not be described in detail below. It will simply be recalled that in general, such aslide 300 comprises a sole 302 which supports twoside webs central wall 308 defining between them twonon-parallel channels primary webs walls slide 300, the latter part stresses thecomplementary closure elements - Alternatively the embodiment illustrated in
FIG. 17 can be completed by a film orweb 140 forming opening indicator and sealing strengthener initially connecting the free edges of theinner sections primary webs FIG. 15 . - In
FIG. 18 , we have shown an alternative embodiment of a closure assembly according to the present invention comprising such aslide 300 also covered by a film orweb 148 forming an opening indicator. Thefilm 148 overlaps theslide 300 and is connected to theprimary webs secondary webs articulation zones web 148 must be broken during the first use in order to allow access to theslide 300. Preferably to this end theweb 148 includes a line ofweakness 149 similar to lines ofweakness - The alternative embodiments illustrated in
FIGS. 19 and 20 correspond to embodiments of closure devices according to the present invention, adapted to make opening difficult both under an internal stress and an external stress, once the device is placed in the closure position. - In
FIG. 19 we have illustrated an alternative embodiment which differs from that illustrated inFIG. 6 by the fact that theprimary webs articulation zones auxiliary opening webs - In
FIG. 20 , we have illustrated an alternative embodiment which differs fromFIG. 10 by the fact that additionalauxiliary webs auxiliary webs primary webs articulation zones auxiliary webs primary webs FIG. 8 , without risk of opening of the closure device and the bag. - More precisely according to
FIG. 20 , theprimary webs articulation zone secondary webs auxiliary webs primary webs - It will also be recalled that according to the embodiment illustrated in
FIG. 20 , not only is a pair ofcomplementary elements articulation zones secondary webs complementary elements articulation zones complementary elements primary webs - The two embodiments illustrated in
FIGS. 19 and 20 lead to a quasi-impossible opening without damaging the closure device, whether under the pressure inside the bag or in the form of an external opening attempt. Such closure assemblies can be used to equip single-use bags, for example to store securities, bank products or other such products, or any other product, for example all food or household products or their equivalents in a single-use bag. - Alternatively a line of weakness can be provided on a localized zone of the closure devices illustrated in
FIGS. 19 and 20 , for example at one of thearticulation zones articulation zones primary web secondary web - Of course, the present invention is not limited to the embodiments just described, but rather extends to all alternatives according to its spirit.
- In particular the set of features previously described respectively with regard to a specific figure can be combined with all of the features illustrated in the other figures.
- For example and non-limitingly, each of the alternatives can comprise
complementary elements - In
FIG. 21 , we have illustrated another alternative embodiment according to the present invention according to which theprimary webs ridges webs 160 260. Such an arrangement is known by those skilled in the art and will not be described in detail below. - In the appended
FIG. 22 we have also shown another alternative embodiment in which one finds, as for all of the embodiments according to the present invention illustrated inFIGS. 6 to 21 , twocomplementary elements primary webs secondary webs walls primary webs articulations closure elements primary webs FIG. 22 also comprises two additionalcomplementary elements element 105, is supported by an additional articulated sealingweb 107. This additional sealingweb 107 is itself connected to one of theprimary webs primary web 160, at azone 108 not superimposed on thecorresponding closure element 105. Furthermore the additional articulatedweb 107 extends beyond theclosure element 105 such that upon engagement of the additionalcomplementary closure elements end 109 of the articulatedweb 107 bears on an opposite structure, in this case the oppositeprimary web 260. The preceding arrangement is according to the patent application filed by the Applicant on Dec. 17, 2008 under No. FR 08 58680. It therefore will not be described in more detail below. This arrangement, which makes it possible to strengthen the sealing of the closure device and of the bag, can in itself be the object of different alternative embodiments, as indicated in application FR 08 58680. - In
FIG. 23 , we have illustrated a cross-section of a specific embodiment of a closure assembly according, in its principle, toFIGS. 6 and 10 . Indeed inFIG. 23 we find an embodiment according to which eachprimary web arrowhead elements primary webs sections secondary webs primary webs articulations - More specifically according to the embodiment illustrated in
FIG. 23 , theexternal sections primary webs secondary webs primary webs outer sections semi-rigid recesses primary webs secondary webs articulation aforementioned recesses primary webs complementary elements secondary webs sections -
FIG. 24 illustrates an alternative embodiment fromFIG. 23 which differs from the latter figure by the fact that according toFIG. 24 , theexternal sections primary webs primary webs secondary webs primary webs flexible recesses primary webs recesses articulation primary webs complementary elements secondary webs sections -
FIG. 25 illustrates a cross-sectional view of a specific embodiment of a closure assembly according, in its principle, toFIG. 10 . - Indeed in
FIG. 25 we find an alternative embodiment according to which theprimary webs articulation zones secondary webs auxiliary webs primary webs secondary webs auxiliary webs complementary elements articulation zones secondary webs complementary elements articulation zones complementary elements primary webs articulation zones primary webs primary webs complementary elements secondary webs auxiliary webs - In
FIGS. 26 and 27 we have illustrated two alternative embodiments which differ from the embodiments illustrated inFIGS. 10 and 20 , respectively, by the fact that one of theprimary webs 260 is extended in its inner end by areturn 292, adapted to overlap the free inner edge of the oppositeprimary web 160 and thereby strengthen the sealing of the assembly, in closed position. Thereturn 292 is convex toward the inside of the bag. - One will note that several embodiments of closure assemblies according to the present invention are made up of two symmetrical sub-assemblies (see for example
FIGS. 10 , 13 to 16, 19 to 21, 23 to 25). Such a symmetry offers many advantages. It makes it possible to realize the closure assembly using a single extrusion die and therefore a low cost. It also makes it possible to realize the closure assembly by folding a sub-assembly on itself. It avoids having to differentiate two separate subassemblies, for example including male and female closure elements, respectively. - One will also note that according to the present invention, several
complementary closure elements - According to other advantageous features of the invention, the closure assembly can:
- comprise a film or web forming opening indicator and strengthener
- comprise ridges on support webs,
- comprise dissymmetrical complementary elements,
- comprise an internal branch of a female closure element (200) which is thicker and more rigid than its external element,
- be connected on the walls of a bag.
- be attached on the walls of a bag.
- comprise a web or film forming opening indicator which initially connects the free edges of the internal sections of the primary webs,
- comprise a film or web forming opening indicator and sealing strengthener initially connecting the free edges of the external sections of the primary webs,
- comprise a web forming opening indicator which includes a weak point, preferably in its median portion, for example in the form of a zone of smaller thickness or a zone in a more fragile material, in order to localize the preferred break line of that web,
- comprise additional closure elements, an additional articulated sealing web which supports one of the additional closure elements, said additional web itself being connected to one of the primary webs, at a zone not superimposed on the corresponding additional closure element and which extends beyond this additional closure element such that upon engagement of the additional complementary closure elements, the end of the articulated web bears on an opposite structure, for example the opposite primary web,
- be realized fully by extrusion, in thermoplastic material, for example polyethylene- or polypropylene-based,
- comprise complementary closure elements which are of the male/female type with complementary shapes, the complementary hooks type or the complementary arrowhead type,
- comprise one of the primary webs which supports at least two arrowhead elements adapted to receive, between them, a complementary element supported by the other web,
- comprise three levels of complementary elements on the primary webs,
- comprise complementary elements supported by the primary webs which are mixed,
- comprise each web which supports three arrowhead element designed to become interlinked with the complementary elements supported by the opposite web,
- be made up of two symmetrical subassemblies,
- include two primary webs which each support three arrowhead elements designed to become interlinked with the complementary elements supported by the opposite web, extensions toward the outside of the primary webs in the form of sections and secondary webs articulated on the primary webs, at articulations, the external sections of the primary webs being globally situated in the extension of the secondary webs, the primary webs being thus connected to the external sections via respective at least semi-rigid recesses, oriented outwardly from the primary webs, and the secondary webs being provided with a zone of smaller thickness forming the articulation, near the recesses,
- include two primary webs which each support three arrowhead elements designed to become interlinked with the complementary elements supported by the opposite web, extensions toward the outside of the primary webs in the form of sections and secondary webs articulated on the primary webs, at articulations, the external sections of the primary webs being globally situated in the extension of the primary webs and being at least semi-rigidly connected thereto, the secondary webs being connected to the primary webs via respective flexible recesses oriented outwardly from the primary webs and the recesses being made up of zones of small thickness forming the articulation,
- include primary webs which extend on either side of the articulation zone, secondary webs and additional auxiliary webs articulated flexibly on the primary webs, the secondary webs and the additional auxiliary webs being globally aligned, respectively, a pair of complementary elements in line with articulation zones of the secondary webs, additional rows of complementary elements, on either side of the articulation zones, respectively, the articulation zones being made up of recesses oriented outwardly from the primary webs,
- comprise one of the primary webs which is extended on its internal end by a return, adapted to overlap the free inside edge of the opposite primary web and thereby strengthen the sealing of the assembly, in closed position.
Claims (20)
1. A closure assembly comprising two complementary elements (100, 200) supported by respective webs, characterized by the fact that said two complementary elements (100, 200) are supported by primary webs (160, 260) coextruded with said two complementary elements (100, 200) and that the closure assembly also comprises secondary webs (170, 270) coextruded with said two complementary elements (100, 200), designed to be connected to the walls (10, 20) of the bag and which are connected to the primary webs (160, 260) at respective articulations (172, 272) formed by extrusion and situated in line with connection zones (102, 202) of a pair of complementary closure elements (100, 200) on the primary webs (160, 260) and additional rows of complementary elements (100 b, 200 b; 100 c, 200 c) supported by the primary webs (160, 260) of at least one side of the articulation zones (172, 272).
2. The closure assembly according to claim 1 , characterized by the fact that said articulations (172, 272) are flexible.
3. The closure assembly according to claim 1 , characterized by the fact that the respective articulations (172, 272) are formed by a narrowing of material.
4. The closure assembly according to claim 1 , characterized by the fact that the respective articulations (172, 272) are formed by or near a recess between the primary webs (160, 260) and the secondary webs (170, 270).
5. The closure assembly according to claim 1 , characterized by the fact that auxiliary opening webs (164, 264) are at least semi-rigidly connected to the primary webs (160, 260), respectively.
6. The closure assembly according to claim 1 , characterized by the fact that the primary webs (160, 260) extend on either side of said connection zones (102, 202), such that the external sections (164, 264) of the primary webs (160, 260) constitute auxiliary opening webs at least semi-rigidly connected to the primary webs (160, 260), respectively, allowing easy opening of the bag from the outside thereof.
7. The closure assembly according to claim 6 , characterized by the fact that the intrinsic rigidity of the external sections (164, 264) of the primary webs (160, 260) and the rigidity of the connection (102, 202) existing between these external sections (164, 264) of the primary webs and the closure elements (100, 200), are greater than the rigidity of the articulation connection (172, 272) defined between the secondary webs (170, 270) and the primary webs (160, 260).
8. The closure assembly according to claim 1 , characterized by the fact that it also comprises an operating slide (300).
9. The closure assembly according to claim 1 , characterized by the fact that the primary webs (160, 260) are interrupted at the articulation zones (172, 272) such that the opening is quasi-impossible from the outside of the bag.
10. The closure assembly according to claim 1 , characterized by the fact that it comprises auxiliary webs (180, 280; 190, 290) oriented toward the outside of the closure assembly and flexibly articulated on the primary webs (160, 260) such that opening is quasi-impossible from the outside of the bag.
11. The closure assembly according to claim 1 , characterized by the fact that the primary webs (160, 260) extend on either side of the articulation zone (172, 272) and the closure assembly comprises secondary webs (170, 270) and additional auxiliary webs (190, 290) all flexibly articulated in (172, 272) on the primary webs (160, 260).
12. The closure assembly according to claim 1 , characterized by the fact that it comprises a line of weakness on a zone localized, for example, at one of the articulation zones (172 or 272), in order to monitor and confine the tear zone, when an opening is forced, in order to clearly visualize that opening.
13. The closure assembly according to claim 1 , characterized by the fact that it comprises a pair of complementary elements (100, 200) in line with the articulation zones (172, 272) of the secondary webs (170, 270), and additional rows of complementary elements (100 a, 200 a; 100 b, 200 b), supported by the primary webs (160, 260) on either side of the articulation zones (172, 272), respectively.
14. The closure assembly according to claim 13 , characterized by the fact that the additional rows of complementary elements (100 a, 200 a; 100 b, 200 b) comprise at least one flange (120, 220; 130), or a pair of male/female type elements or hooks-type elements or velvet/hooks-type elements.
15. The closure assembly according to claim 1 , characterized by the fact that it is provided with a web forming opening indicator (140, 144, 148).
16. The closure assembly according to claim 1 , characterized by the fact that each of the primary webs (160, 260) supports a plurality of complementary elements (100, 200) capable of engaging.
17. The closure assembly according to claim 1 , characterized by the fact that it comprises a first level of complementary elements (100 a, 200 a) in line with the articulation zones (172, 272) of the secondary webs (170, 270) and two additional levels of complementary elements (100 b, 200 b and 100 c, 200 c) of the hooks type, on the inside of the bag in relation to the first level of aforementioned complementary elements (100 a, 200 a).
18. The closure assembly according to claim 1 , characterized by the fact that the primary webs (160, 260) and the complementary elements (100, 200) supported by them are symmetrical.
19. The closure assembly according to claim 1 , characterized by the fact that the primary webs (160, 260) support at least one sealing flange (120, 220, 130).
20. A bag characterized by the fact that it comprises a closure assembly according to claim 1 .
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0951020A FR2942207B1 (en) | 2009-02-17 | 2009-02-17 | CLOSURE ASSEMBLY FOR PACKAGING BAGS AND SACHETS COMPRISING SUCH AN ASSEMBLY |
FR0951020 | 2009-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100209020A1 true US20100209020A1 (en) | 2010-08-19 |
Family
ID=41130606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/707,550 Abandoned US20100209020A1 (en) | 2009-02-17 | 2010-02-17 | Closure assembly for packaging bags |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100209020A1 (en) |
EP (1) | EP2218649B1 (en) |
AT (1) | ATE529345T1 (en) |
BR (1) | BRPI1000378B1 (en) |
CA (1) | CA2693245C (en) |
FR (1) | FR2942207B1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015018859A1 (en) * | 2013-08-06 | 2015-02-12 | S2F Flexico | Method for manufacturing a bag by means of blown film extrusion |
US20150067993A1 (en) * | 2012-04-03 | 2015-03-12 | S2F Flexico | Device for closing bags or the like, having improved tactile and sound effects, resultant bag, and production method |
USD769117S1 (en) | 2015-01-30 | 2016-10-18 | Inteplast Group Corporation | Set of gripping panels for bag closure |
US9790002B2 (en) | 2015-01-29 | 2017-10-17 | Inteplast Group Corporation | Bag with gripping panels |
US11572219B2 (en) | 2019-02-08 | 2023-02-07 | Elplast Europe Sp. Z O.O. | Zipper closure and package using the same |
US20240099418A1 (en) * | 2022-09-27 | 2024-03-28 | Inteplast Group Corporation | Shoe cover |
Citations (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2916197A (en) * | 1957-05-06 | 1959-12-08 | Douglas Aircraft Co Inc | Compartmented container |
US3054434A (en) * | 1960-05-02 | 1962-09-18 | Ausnit | Bag closure |
US3115689A (en) * | 1961-01-19 | 1963-12-31 | Flexigrip Inc | Slider for fastener strips |
US3172443A (en) * | 1962-02-19 | 1965-03-09 | Ausnit Steven | Plastic fastener |
US3173184A (en) * | 1962-09-21 | 1965-03-16 | Ausnit Steven | Shaped head top closure |
US3213504A (en) * | 1962-08-31 | 1965-10-26 | Ausnit Steven | Slider |
US3459870A (en) * | 1967-04-10 | 1969-08-05 | Walter A Plummer | High dielectric protective jacket for temporary assembly about high tension conductors |
US3633642A (en) * | 1968-11-08 | 1972-01-11 | Karlheinz Siegel | Bag of plastics material sheeting |
US4196030A (en) * | 1976-12-27 | 1980-04-01 | Minigrip, Inc. | Method of making extruded construction for bags |
US6185796B1 (en) * | 1999-08-20 | 2001-02-13 | Illinois Tool Works Inc. | Vacuum seal reclosable zipper |
US6305844B1 (en) * | 1998-11-02 | 2001-10-23 | Flexico-France | Bag comprising complementary closure strips actuated by a cursor |
US20020034343A1 (en) * | 1998-06-17 | 2002-03-21 | Henri Bois | Bag having cursor-actuated complementary closure strips |
US20040148744A1 (en) * | 2001-07-03 | 2004-08-05 | Offa-Jones Martin John Charles | Reclosable fasteners for plastics bags and the like |
US6826808B2 (en) * | 2000-09-08 | 2004-12-07 | Zip Pack Ip Ag | Ziplock for pouches and bags |
US20050244083A1 (en) * | 2003-02-19 | 2005-11-03 | Mcmahon Michael J | Reclosable vacuum storage bag having flat resealable means |
US20050251973A1 (en) * | 2000-03-14 | 2005-11-17 | Com-Pac International, Inc. | Reclosable fastener strip |
US7052181B2 (en) * | 2003-06-11 | 2006-05-30 | S.C. Johnson Home Storage, Inc. | Zippered bag having a pair of fastener strips |
US20070065051A1 (en) * | 2005-09-21 | 2007-03-22 | Eads Claude A | Infestation resistant reclosable seal |
US20070154118A1 (en) * | 2004-07-23 | 2007-07-05 | Alcoa Inc. | Polymeric package with resealable closure and valve and methods relating thereto |
US20070183692A1 (en) * | 2006-02-08 | 2007-08-09 | Pawloski James C | Reclosable pouch and zipper for a reclosable pouch |
US20080019619A9 (en) * | 2005-04-12 | 2008-01-24 | Eads Claude A | Tamper evident reclosable seals |
US20080226203A1 (en) * | 2007-03-16 | 2008-09-18 | Dais Brian C | Pouch and airtight resealable closure mechanism therefor |
US20080256901A1 (en) * | 2005-10-24 | 2008-10-23 | Reynolds Foil Inc, D/B/A Reynolds Consumer Products Company | Polymeric package with resealable closure and valve, and methods |
US7506487B2 (en) * | 2005-09-21 | 2009-03-24 | Zip Pack Ip Ag | Method for applying a reclosable seal to a container |
US20090324141A1 (en) * | 2008-06-25 | 2009-12-31 | Dais Brian C | Reclosable vacuum-tight pouch and resealable vacuum-tight closure mechanism therefor |
US7849565B2 (en) * | 2007-06-20 | 2010-12-14 | Illinois Tool Works Inc. | Slider for water-resistant zippers |
US20110194790A1 (en) * | 2007-07-24 | 2011-08-11 | Illinois Tool Works Inc. | Reclosable package or bag with double zipper or similar configuration |
US20120090279A1 (en) * | 2009-04-24 | 2012-04-19 | Untch Guenter | Environmentally sealed docketing device and method, having a zipper and a slide |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR858680A (en) | 1939-02-21 | 1940-11-30 | Thomson Houston Comp Francaise | Modulometer with downtime |
US3347298A (en) | 1965-10-07 | 1967-10-17 | Minigrip Inc | Flexible fastener with unidirectional opening |
US4430070A (en) | 1981-08-11 | 1984-02-07 | Minigrip, Inc. | Method of and apparatus for uninterruptedly assembling components for making bags |
US4817188A (en) | 1988-03-07 | 1989-03-28 | Minigrip, Inc. | Bag with separate attached zipper and method of making |
EP1489019A4 (en) * | 2002-03-27 | 2009-06-03 | Idemitsu Unitech Co Ltd | Sealing bag with chuck |
-
2009
- 2009-02-17 FR FR0951020A patent/FR2942207B1/en active Active
-
2010
- 2010-02-16 CA CA2693245A patent/CA2693245C/en not_active Expired - Fee Related
- 2010-02-17 EP EP10153775A patent/EP2218649B1/en active Active
- 2010-02-17 AT AT10153775T patent/ATE529345T1/en not_active IP Right Cessation
- 2010-02-17 US US12/707,550 patent/US20100209020A1/en not_active Abandoned
- 2010-02-17 BR BRPI1000378-9A patent/BRPI1000378B1/en not_active IP Right Cessation
Patent Citations (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2916197A (en) * | 1957-05-06 | 1959-12-08 | Douglas Aircraft Co Inc | Compartmented container |
US3054434A (en) * | 1960-05-02 | 1962-09-18 | Ausnit | Bag closure |
US3115689A (en) * | 1961-01-19 | 1963-12-31 | Flexigrip Inc | Slider for fastener strips |
US3172443A (en) * | 1962-02-19 | 1965-03-09 | Ausnit Steven | Plastic fastener |
US3213504A (en) * | 1962-08-31 | 1965-10-26 | Ausnit Steven | Slider |
US3173184A (en) * | 1962-09-21 | 1965-03-16 | Ausnit Steven | Shaped head top closure |
US3459870A (en) * | 1967-04-10 | 1969-08-05 | Walter A Plummer | High dielectric protective jacket for temporary assembly about high tension conductors |
US3633642A (en) * | 1968-11-08 | 1972-01-11 | Karlheinz Siegel | Bag of plastics material sheeting |
US4196030A (en) * | 1976-12-27 | 1980-04-01 | Minigrip, Inc. | Method of making extruded construction for bags |
US6755569B2 (en) * | 1998-06-17 | 2004-06-29 | Flexico-France | Bag having cursor-actuated complementary closure strips with additional leakproofing structure |
US6761481B1 (en) * | 1998-06-17 | 2004-07-13 | Flexico-France | Bag comprising matching closing sections actuated by a slider |
US20020034343A1 (en) * | 1998-06-17 | 2002-03-21 | Henri Bois | Bag having cursor-actuated complementary closure strips |
US6609827B2 (en) * | 1998-06-17 | 2003-08-26 | Illinois Tool Works, Inc. | Bag having slider-actuated complementary closure strips and a leakproofing structure |
US6632021B2 (en) * | 1998-06-17 | 2003-10-14 | Illinois Tool Works Inc. | Bag having slider-actuated complementary closure strips and a leakproofing structure |
US6733178B2 (en) * | 1998-06-17 | 2004-05-11 | Flexico-France | Bag having cursor-actuated complementary closure strips |
US7140772B2 (en) * | 1998-06-17 | 2006-11-28 | S2F Flexico | Bag having slider-actuated complimentary closure strips and a leakproofing structure |
US20050286809A1 (en) * | 1998-06-17 | 2005-12-29 | S2F Flexico | Bag having cursor-actuated complementary closure strips |
US7517150B2 (en) * | 1998-06-17 | 2009-04-14 | S2F Flexico | Bag having cursor-actuated complementary closure strips |
US6902321B2 (en) * | 1998-06-17 | 2005-06-07 | S2F Flexico | Bag having cursor-actuated complementary closure strips with additional leakproofing structure |
US6305844B1 (en) * | 1998-11-02 | 2001-10-23 | Flexico-France | Bag comprising complementary closure strips actuated by a cursor |
US6185796B1 (en) * | 1999-08-20 | 2001-02-13 | Illinois Tool Works Inc. | Vacuum seal reclosable zipper |
US7914208B2 (en) * | 2000-03-14 | 2011-03-29 | Com-Pac International, Inc. | Reclosable fastener strip |
US20050251973A1 (en) * | 2000-03-14 | 2005-11-17 | Com-Pac International, Inc. | Reclosable fastener strip |
US6826808B2 (en) * | 2000-09-08 | 2004-12-07 | Zip Pack Ip Ag | Ziplock for pouches and bags |
US20040148744A1 (en) * | 2001-07-03 | 2004-08-05 | Offa-Jones Martin John Charles | Reclosable fasteners for plastics bags and the like |
US20050244083A1 (en) * | 2003-02-19 | 2005-11-03 | Mcmahon Michael J | Reclosable vacuum storage bag having flat resealable means |
US7052181B2 (en) * | 2003-06-11 | 2006-05-30 | S.C. Johnson Home Storage, Inc. | Zippered bag having a pair of fastener strips |
US20070154118A1 (en) * | 2004-07-23 | 2007-07-05 | Alcoa Inc. | Polymeric package with resealable closure and valve and methods relating thereto |
US20080019619A9 (en) * | 2005-04-12 | 2008-01-24 | Eads Claude A | Tamper evident reclosable seals |
US20070065051A1 (en) * | 2005-09-21 | 2007-03-22 | Eads Claude A | Infestation resistant reclosable seal |
US7506487B2 (en) * | 2005-09-21 | 2009-03-24 | Zip Pack Ip Ag | Method for applying a reclosable seal to a container |
US20080256901A1 (en) * | 2005-10-24 | 2008-10-23 | Reynolds Foil Inc, D/B/A Reynolds Consumer Products Company | Polymeric package with resealable closure and valve, and methods |
US20070183692A1 (en) * | 2006-02-08 | 2007-08-09 | Pawloski James C | Reclosable pouch and zipper for a reclosable pouch |
US20100284632A1 (en) * | 2007-03-16 | 2010-11-11 | Dais Brian C | Pouch And Airtight Resealable Closure Mechanism Therefor |
US20080226203A1 (en) * | 2007-03-16 | 2008-09-18 | Dais Brian C | Pouch and airtight resealable closure mechanism therefor |
US7849565B2 (en) * | 2007-06-20 | 2010-12-14 | Illinois Tool Works Inc. | Slider for water-resistant zippers |
US20110194790A1 (en) * | 2007-07-24 | 2011-08-11 | Illinois Tool Works Inc. | Reclosable package or bag with double zipper or similar configuration |
US20090324141A1 (en) * | 2008-06-25 | 2009-12-31 | Dais Brian C | Reclosable vacuum-tight pouch and resealable vacuum-tight closure mechanism therefor |
US20120090279A1 (en) * | 2009-04-24 | 2012-04-19 | Untch Guenter | Environmentally sealed docketing device and method, having a zipper and a slide |
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US20150067993A1 (en) * | 2012-04-03 | 2015-03-12 | S2F Flexico | Device for closing bags or the like, having improved tactile and sound effects, resultant bag, and production method |
US9981780B2 (en) * | 2012-04-03 | 2018-05-29 | S2F Flexico | Device for closing bags or the like, having improved tactile and sound effects, resultant bag, and production method |
WO2015018859A1 (en) * | 2013-08-06 | 2015-02-12 | S2F Flexico | Method for manufacturing a bag by means of blown film extrusion |
JP2016527113A (en) * | 2013-08-06 | 2016-09-08 | エス2エフ・フレクシコS2F Flexico | Method for manufacturing bags by inflation film extrusion |
US10093456B2 (en) | 2013-08-06 | 2018-10-09 | S2F Flexico | Method for manufacturing a bag by means of blown film extrusion |
US9790002B2 (en) | 2015-01-29 | 2017-10-17 | Inteplast Group Corporation | Bag with gripping panels |
USD769117S1 (en) | 2015-01-30 | 2016-10-18 | Inteplast Group Corporation | Set of gripping panels for bag closure |
US11572219B2 (en) | 2019-02-08 | 2023-02-07 | Elplast Europe Sp. Z O.O. | Zipper closure and package using the same |
US20240099418A1 (en) * | 2022-09-27 | 2024-03-28 | Inteplast Group Corporation | Shoe cover |
Also Published As
Publication number | Publication date |
---|---|
BRPI1000378A2 (en) | 2011-06-14 |
CA2693245A1 (en) | 2010-08-17 |
EP2218649A8 (en) | 2011-03-23 |
CA2693245C (en) | 2017-04-04 |
FR2942207B1 (en) | 2011-03-18 |
BRPI1000378B1 (en) | 2019-11-12 |
ATE529345T1 (en) | 2011-11-15 |
EP2218649A1 (en) | 2010-08-18 |
FR2942207A1 (en) | 2010-08-20 |
EP2218649B1 (en) | 2011-10-19 |
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Legal Events
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AS | Assignment |
Owner name: S2F FLEXICO, FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DELASALLE, WILLIAM;REEL/FRAME:024304/0266 Effective date: 20100324 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |