WO2007045584A2 - Systeme de fermeture en plastique et combinaison d'un systeme de fermeture en plastique et d'une partie superieure de recipient - Google Patents

Systeme de fermeture en plastique et combinaison d'un systeme de fermeture en plastique et d'une partie superieure de recipient Download PDF

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Publication number
WO2007045584A2
WO2007045584A2 PCT/EP2006/067299 EP2006067299W WO2007045584A2 WO 2007045584 A2 WO2007045584 A2 WO 2007045584A2 EP 2006067299 W EP2006067299 W EP 2006067299W WO 2007045584 A2 WO2007045584 A2 WO 2007045584A2
Authority
WO
WIPO (PCT)
Prior art keywords
container neck
closure
container
foot
leg
Prior art date
Application number
PCT/EP2006/067299
Other languages
German (de)
English (en)
Other versions
WO2007045584A3 (fr
Inventor
Hans Lohmann
Original Assignee
Bericap Gmbh & Co. Kg
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 Bericap Gmbh & Co. Kg filed Critical Bericap Gmbh & Co. Kg
Publication of WO2007045584A2 publication Critical patent/WO2007045584A2/fr
Publication of WO2007045584A3 publication Critical patent/WO2007045584A3/fr

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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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/023—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices with integral internal sealing means
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/061—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with telescopic, retractable or reversible spouts, tubes or nozzles
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • B65D47/103—Membranes with a tearing element

Definitions

  • the present invention relates to a plastic closure with a cross-sectionally U-shaped closure foot, which is provided for encompassing a plastic container neck, which has a radially outwardly projecting collar, wherein the outer U-leg of the U-shaped closure foot has a radially inwardly projecting projection, is provided for engaging behind the radially outwardly projecting collar of the container neck, and wherein the inner leg of the closure foot is adapted to engage the interior of the cylindrical container neck.
  • the present invention also relates to a combination of a container neck with a closure foot, wherein the container neck has a radially outwardly projecting collar which is engaged behind by the radially inwardly projecting projection of the outer leg of a U-shaped closure foot, wherein the U-shaped closure foot the cylindrical container neck at the front and on its outer and inner sides surrounds.
  • a general problem of such plastic closures and containers is a risk of manipulation, ie the ability to lift the outer, the (generally cylindrical) container neck from the outside embracing U-legs of the closure foot outwards and upwards and then, as soon as along a small sector area successfully done, the U-shaped closure foot and thus peel off the entire closure of the cylindrical container neck. Thereafter, the opening formed by the (cylindrical) container neck is exposed and the container contents can be exchanged or manipulated, whereupon the U-shaped closure foot is placed back on the container neck and pressed down vigorously, so that the inwardly projecting projection of the outer U-leg of U -shaped closure foot engages behind the outwardly facing collar of the container neck and thus the impression of an original sealed container is awakened.
  • the present invention has the object, a closure and an optionally also adapted to such a closure container top in combination with the closure to create, which still improves the manipulation safety of the closures compared to the prior art and preferably also allow embodiments of a container top, which facilitate the complete emptying of the container during pouring.
  • the inner leg of the closure foot has a radially outwardly projecting projection which is provided for engaging behind a lower inner edge of the container neck.
  • the closure foot Due to the additional projection which is formed on the inner leg of the closure foot and projects outwardly and engages behind the inner lower edge of the container neck, the closure foot is independent of the inwardly projecting projection on the outer leg of the closure foot, which the outwardly projecting collar of the Container neck engages behind, additionally secured against axial withdrawal and lying in the interior of the container U-leg of the closure foot is accessible from the outside of the container by any tool. This makes it practically impossible, the closure foot up combinzuhebein over the upper edge of the container neck, even if the outer leg of the closure foot is freely accessible radially from the outside.
  • the object underlying the invention is achieved in that the inner U-leg of the U-shaped closure foot has a radially outwardly facing projection which engages behind the inner lower edge of the container neck.
  • the container opening has a substantially cylindrical opening portion, which is usually in the form of an approximately cylindrical, substantially perpendicular to the surface of the surrounding container top extending container neck.
  • the container neck may also be slightly conical, double-conical or curved in cross-section outwardly widened. It is essential for practical reasons only that the container neck is easy to demold, so it has no strong undercuts from both sides.
  • the container neck also need not necessarily have a circular cross-section, but may also be elliptical or polygonal in cross-section, preferably with rounded corners.
  • an axis of the container neck and a corresponding closure foot can be defined as a rule, which is either an axis of symmetry, or the direction of a substantial extension of the side walls of the container neck and / or the legs of the closure foot reproduces.
  • a shape of an approximately circular circumferential ridge for the container neck is preferably thus defines a hollow cylinder and the lower end preferably relatively abruptly ends and merges into the inner surface of the container top, or in an abruptly widening region of the container neck.
  • the container top in the vicinity of the cylindrical container opening substantially flat or slightly conical and without an inwardly projecting protrusion form.
  • the closure of the invention can of course also be used in a container top, which has a depression or a survey in the vicinity of the container opening.
  • a depression may be particularly useful when the containers should be stackable, so that the patch on the upwardly projecting, cylindrical container neck patch does not protrude over the surface located outside the depression of the container top.
  • a survey contributes to easier emptying.
  • Generally structuring the surface of the container top surrounding the container neck has the effect of stiffening and stabilizing the container top, which may well be desirable in the vicinity of the container neck.
  • the outwardly projecting projection of the inner closure foot which is preferably provided at the axially inner and lower end of the closure foot, is formed in cross-section substantially nose-shaped with a downwardly facing edge, the with the axis of the closure at an angle of less than 45 ° and an upper flank, which forms an angle of more than 45 ° with the axis of the closure.
  • flanks upper and lower surfaces of the nose-shaped projection in an axial section through the closure does not necessarily have to be rectilinear, but may also be curved or have a different profile, it is only essential that the concrete engaged with the bottom edge of the container neck engaging portion of the upper surface always encloses a sufficiently large angle (preferably more than 45 °) with the closure axis to provide a sufficiently large resistance to withdrawal of the closure foot or the inner leg thereof from the container neck, while on the other hand, the lower surface of the nose-shaped projection must be shaped or inclined so that the closure foot or its inner leg by engaging these lower Area with the upper edge of the container neck sufficiently rich can be compressed, so that this inner leg slides into the container neck.
  • top and bottom are used herein, the description is based on an orientation of the closure and the container neck, in which the substantially cylindrical container neck extends vertically upward from a container top and, consequently, the closure axis is vertical extends, wherein the opening of the U-shaped closure foot downwards, in the direction of the cylindrical container neck is open, so that therefore extend the two U-legs of the cross-sectionally U-shaped closure foot of a cross-piece connecting these two legs vertically downwards.
  • a corresponding container neck could also be arranged inclined with respect to a vertical, and accordingly the closure axis and the entire closure would also be arranged inclined. The assumption of a vertically oriented neck of the container thus serves only to simplify the description.
  • the upper flank of the mentioned projection (in the region engaging the lower inner edge of the container neck) is at an angle of more than 50 °, preferably more than 55 ° and in particular below an angle between 60 and 80 ° relative to the axis of the closure, while the lower flank encloses an angle with the axis of the closure which is less than 40 °, preferably less than 35 ° and in particular between 25 and 35 °.
  • "flank” here means only the portions of the nose-shaped projection which engage with the upper or lower edges of the container neck.
  • the object underlying the invention is achieved in that the inner U-leg of the U-shaped closure foot has a radially outwardly facing projection which engages behind an inner lower edge of the cylindrical container neck. It is essential, of course, that the dimensions of the closure foot and the container neck are coordinated, since the nose-shaped projection of the inner leg of the closure foot relative to the overlying wall portion for reasons of ease of release only a slight radial excess in the order of not more 1 to 2 mm (corresponding to 2 to 4 mm in diameter) can have.
  • the dimensions of the outer circumferential surface of the inner leg of the closure foot and the radially inner surface of the neck of the container should correspond well above all in the immediate vicinity of the nose-shaped projection, and preferably a slight interference fit is provided immediately above the projection, so that the inner leg of the closure foot in the vicinity of the nose-shaped projection firmly against the inner surface of the container neck
  • the inner leg over its entire, the inner surface of the container neck radially opposite, axial length is in contact with the container neck and preferably fits snugly.
  • annular circumferential web may be provided on the inner wall of the container neck for engagement with the inner leg of the closure foot, the lower edge of which engages behind the nose-shaped projection and insofar defines a "lower inner edge" of the container neck in the free space formed above the web between the outside of the inner leg and the inside of the container neck and annular circumferential sealing strips, preferably integrally with the inner leg, which sealingly bridge such a gap between the inner leg and inner wall of the container neck when the interior of the container neck widens conically upwardly and outwardly, while the inner leg of the closure foot is substantially cylindrical except for the projection
  • the inner leg should be tightly fitted and preferably press-fitted. half of the projection engages and thus engages behind the lower edge, forms between the inner leg and the upwardly widening wall of the container neck an upwardly increasingly wider gap, which can be bridged for example by a seal.
  • the axial length of the container neck measured from its upper edge to the hinterein from the projection behind Lucas inner edge, at least 8 mm or more, preferably at least 10 and in particular at least 12 mm is.
  • the axial sides of the container neck should tend to increase with the diameter of the container neck, even if this axial length only needs to increase less than proportionally with the diameter.
  • a special role is in a preferred variant of the invention, the combination of the materials for the closure or the closure foot on the one hand and for the container neck and the entire top of the container on the other hand.
  • the container neck of a relatively hard plastic material, such.
  • polypropylene or high-pressure polyethylene is made, while the closure foot of a relatively elastic and soft material such.
  • the lower flank of the nose-shaped projection enclosing a smaller angle allows the inner leg of the closure foot to be inserted more easily into the cylindrical container neck, although the outer diameter of the nose-shaped projection must necessarily be greater than the inner diameter of the container Container neck, but preferably the lower free edge of the inner U-leg has a diameter which is at most equal to the inner diameter at the upper edge of the container neck or slightly smaller.
  • the upper edge of the approximately cylindrical container neck slides ramp-like on the nose-shaped projection, wherein the inner leg of the closure foot is correspondingly elastically compressed and again elastically expands when the nose-shaped projection has passed the lower edge of the cylindrical container neck and thus the flatter upper edge of the nose-shaped projection, which with the axis of the closure includes a larger angle (greater than 50 °), slides over the lower inner edge of the cylindrical container neck.
  • the significantly greater inclination of this upper flank of the nose-shaped projection provides sufficient resistance to axial tensile forces acting on the closure foot when attempting to pry the outer leg of the U-shaped closure foot beyond the upper edge of the cylindrical container neck.
  • the radial excess of the outwardly projecting projection i. the difference in diameter between the maximum outer diameter defined by the nose-shaped projection and the outer diameter of the inner leg of the closure foot substantially coinciding with the inner diameter of the cylindrical container neck, above the nose-shaped projection, is sufficiently small to permit easier removal of the closure foot during manufacture; without the need for complicated molds.
  • such an oversize should not exceed a value of 2 to 5 mm, with 3 mm oversize (of the diameter) being sufficient for closures with small closure foot diameters of less than 50 mm.
  • the radially outwardly facing projection having lower edge of the inner leg of the closure foot is preferably formed annularly encircling, but it may also be divided into several sectors according to a particular embodiment of the invention and have corresponding interruptions therebetween. This is particularly useful when a complete emptying of the container in the upside-down state is to be made possible because of the inner edge of the cylindrical container neck inwardly projecting end portion of the inner U-leg otherwise protruding from the inner surface of the container Barrier forms.
  • the "lower" inner edge of the cylindrical container neck is formed by a step-shaped widening of the inner wall of the cylindrical container neck at a distance from the plane defined by the inner surface of the subsequent upper side of the container neck.
  • the inner U-leg completely within the step-flared, cylindrical container neck remains, the "inner lower edge" of the cylindrical container neck in the sense of the present description, which is engaged by the outwardly facing projection of the inner U-leg through the lower end of the smaller diameter (upper) portion of the cylindrical container neck is formed while the container neck in a broader sense extends even further down to the transition to the inner surface of the container top.
  • a projection in the form of a so-called Flexbandes may advantageously be provided an alternative variant of a projection in the form of a so-called Flexbandes.
  • a flex band is known, for example, as a guarantee band on the closure caps of screw caps for beverage bottles (see DE 10 2004 014 758 of the same Applicant).
  • Such a flex band would, for example, attach to the lower free end of the inner thigh and, before insertion into the container neck, would be reversed about a 180 ° or slightly less outward and upward by a flexible circumferential "hinge" connection to the inner thigh Inserting and passing the lower inner edge of the container neck folds such a flex band outwards due to its inherent elastic restoring forces (in the lower "hinge” region) and thereby engages behind the lower inner edge of the container neck. At a complete folding it is then but by the stepped only by a correspondingly small amount of 1 to 3 mm widening Wall of the container neck or an attaching portion are prevented. In this way, even a flex band withstands strong axially outward forces.
  • the container top which is on the one hand formed integrally with the cylindrical container neck, on the other hand also formed integrally with the container body.
  • the cylindrical container neck is formed integrally with a lid which can be placed on a container, this lid forming the top of the container in the sense of the present invention.
  • the inner leg sits with preferably low clearance or even in close fit in the container neck.
  • Figure 1 shows an axial section through a first embodiment of an inventive
  • FIG. 2 shows a section only through the region of a closure foot and container neck edge according to a second embodiment
  • FIG. 3 shows a section through the region of a closure foot and a container neck according to a third embodiment
  • FIG. 4 shows a section through a container neck with closure foot according to a fourth embodiment
  • Figure 5 shows a section through a container neck with closure foot according to a fifth embodiment
  • Figure 6 shows a section through a container neck with closure foot according to a sixth embodiment.
  • FIG. 1 it can be seen in Figure 1 in an axial section a total of 10 designated plastic closure, which is placed on the substantially cylindrical container neck 8 at the top 20 of a container.
  • the container top is in the vicinity of the closure 10 substantially of a flat plastic plate 21 having a central, circular opening which is defined by a plate 21 from the vertical upward projecting, substantially cylindrical container neck 8, the upper end of a radially outward protruding collar 9 has.
  • This cylindrical container neck 8 with the outwardly projecting collar 9 is encompassed by a cross-sectionally approximately U-shaped closure foot 6, wherein the closure foot of a radially inner leg 1, a radially outer leg 4 and the two legs 1, 4 connecting crossbar. 2 is formed.
  • the radially inner leg 1 of the closure foot 6 has in the vicinity of its lower free end a radially outwardly projecting, in cross-section nose-shaped projection 3, which engages behind the lower inner edge 22 of the container neck 8.
  • the radially outer leg 4 has a radially inwardly projecting, in cross-section also approximately nose-shaped projection 5, which engages behind the collar 9 of the container neck 8 projecting outwardly.
  • the clear distance between the nose-shaped projection 5 and the outer surface of the inner closure foot 1 essentially corresponds to the radial thickness of the bottle neck 8.
  • the region lying above the nose-shaped projection 5 between the inner leg 1 and the outer leg 4 defines a radial clearance, which corresponds approximately to the radial thickness of the container neck 8 in the region of the collar 9.
  • the outer diameter of the collar 9 and the inner diameter of the annular peripheral lug-shaped projection 5 of the outer leg 4 are typically different by an amount of 2 to 5 mm, these values depending on the total diameter of the closure, or the container neck also outside this range can.
  • the maximum outer diameter of the nose-shaped protrusion 3 is typically about 2 to 5 mm larger than the inner diameter of the lower inner edge of the
  • Bottle neck 8 which is engaged behind by the projection 3.
  • the closure is in the illustrated embodiment, a bellows closure with a cylindrical spout 1 1 with external thread 12 and a cross-section of the pouring 11 1 occlusive closure seal 13, which is removed when first using the closure via a ring bracket 14 from the central cross-sectional opening of the spout 11.
  • the bellows 15 is everted by axial train on a generally attached to the cap ring hoop up from the central opening of the container neck 8 or pulled out.
  • the closure foot holds it with the two projections 3 and 5, the closure 10 a total safe to the container neck 8, for which purpose, the holding force of the inner leg 1 with the outwardly projecting projection 3 alone would be sufficient.
  • the closure foot 6 is also not be solved by the container neck, that the outer U-leg 4 is levered outwards, so that the projection 5 wholly or at least partially outwardly and upwardly over the collar 9 or on the Collar 9 is levered up. This would not affect the inner leg 1 and the engagement of the projection 3 of the inner leg 1 with the lower inner edge 22 of the container neck 8. Since the closure foot 6 in the illustrated embodiment has a relatively large wall thickness and as a cylindrical circumferential hollow profile has a relatively good stability, it is already for this reason, apart from the other features of geometry and materials, not possible by manipulation from the outside Absperrfuß 6 altogether abhebein of the container neck 8. This ensures a high degree of manipulation security for the closure.
  • Figures 2 and 3 show alternative embodiments in the form of the closure foot and / or the container neck.
  • the container neck 6 in the region of its transition to the surrounding plastic plate 21, which forms part of the container top 20, a cross-sectionally approximately rectangular recess 23 whose axial length is dimensioned so that they at least approximately the axial length of the nose-shaped projection 3 and the lower free end of the inner leg 1, measured from the upper edge of the nose-shaped projection 3 corresponds.
  • the radial dimension of this recess corresponds at least to the radial excess of the nose-shaped projection 3 with respect to the inner diameter of the container neck 8 'above the recess 23.
  • the inner edge 22 of the container neck 8' at the transition to the recess 23 as " lower inner edge "of the container neck, which is separated from the nose shaped projection 3 is engaged behind.
  • This embodiment has the advantage of improved emptying, since the lower inner edge of the inner leg 1 of the closure foot 6 in this way does not project inwardly beyond the inner surface of the plastic plate 21 surrounding the container opening. Therefore, when the container is turned upside-down for emptying, the liquid in the container can flow almost completely over the lower free end of the inner leg 1 of the closure foot 6, so that the container can be almost completely emptied.
  • the closure foot 6 in the embodiment according to FIG. 2 is essentially identical to the closure foot 6 of the embodiment according to FIG.
  • the container neck 8 "still differs from the container neck 8 or 8 'according to the embodiment of Figures 1 and 2 in that it does not have an outwardly projecting collar 9. Instead, the container neck 8" in The upper area above the recess 23 has a constant radial thickness, and the outer leg 4 'of the closure foot accordingly has no radially inwardly projecting, nose-shaped projection 5. Preferably, however, the outer leg 4 'of the closure foot 6 ' extends close to the upper side of the plastic plate 21 surrounding the container neck, which forms part of the container top side 20.
  • the closure foot in all the illustrated embodiments of a relatively elastic material since it must be necessarily compressed in the region of the nose-shaped projection to be bounced into the container neck, but has mainly due to the support through the container neck, but also because of it the other closure parts greater wall thickness good rigidity, which is additionally supported by the form of a circular encircling U-shaped mold. Therefore, even in this embodiment, the radially outer U-leg 4 ' can not be levered up over the edge of the container neck 8, since the lower edge of the container neck 8 engages behind the projection 3 of the inner leg 1 of the closure foot 6 ' the closure foot. 6 ' securely on the container neck 8 "holds.
  • a particularly secure fit receives the closure foot 6 also characterized in that the container neck 8 of a comparatively hard and rigid plastic material, such as. Polypropylene or high density polyethylene is made while the closure foot 3 of a comparatively elastic and soft material, such. B. softer polyethylene, EVA or TPE.
  • the inner leg 1 sits with preferably a small clearance (apart from possibly tight-fitting seals) or even in close fit in the container neck 8, so that it in the Given axial length of the inner leg 1 is practically impossible to fastzuhebein by deformation of the externally accessible parts of the closure foot 6, the inner leg 1 and its nose-shaped projection 3 on the lower inner edge 22 of the container neck 8.
  • Figures 4 to 6 show further variants in the combination of container neck and closure foot, wherein in each case only a cross section of an otherwise annular circumferential closure foot with the container neck also shown in section is shown without the remaining part of the closure.
  • the outer leg 4 is identical in all variants with the exception of the embodiment according to FIG. This also applies to all other parts of the closure, apart from the inner leg 1.
  • the inner diameter of the container neck 28 over most of its axial extent significantly larger than the outer diameter of the inner leg 1 'of the closure foot A relatively short axially annular circumferential projection 25, which in this case has an approximately rectangular cross-section, defines a minimum inner diameter of the container neck which corresponds to the outer diameter of the inner leg 1 immediately above the projection 3.
  • annular space is bridged by two additional integrally formed on the inner leg 1 seals 24, which come into sealing engagement with the inner surface of the container neck.
  • the ring 25 or its lower inner edge 22 defines a lower inner edge 22 of the container neck 28, which is engaged behind by the projection 3 of the inner leg V.
  • the inner wall of the container neck 38 is slightly widened upwards, so that here (cylindrical) inner leg 1 "only immediately above the projection 3 with the inner wall of the container neck or its lower inner edge firmly engaged and the projection. 3 Again, this is again provided on an upper portion of the inner leg formed seal, which bridged the distance between the conically flared inner wall of the container neck to the inner leg and ensures a seal.
  • Figure 6 finally shows a variant of a closure foot, wherein the outwardly projecting projection on the inner leg 1 "'of the closure foot is formed by a so-called Flexband 23, ie a hinge-like attached to the lower portion of the inner leg 1"', annular circumferential strip 23, which is arranged for the injection-molding production of the closure foot in approximately axial extension of the lower end of the inner leg 1 '' (dashed line position), and before the insertion of the inner leg 1 '' in the container neck 8 'up to the flexible Hinge 27 is folded down (solid position).
  • Flexband 23 ie a hinge-like attached to the lower portion of the inner leg 1"', annular circumferential strip 23, which is arranged for the injection-molding production of the closure foot in approximately axial extension of the lower end of the inner leg 1 '' (dashed line position), and before the insertion of the inner leg 1 '' in the container neck 8 'up to the flexible Hinge 27 is folded down (solid position
  • a wall 29 which closely surrounds the flexible strip 23 must be provided underneath the underreached "lower" inner edge 22 of the container neck 8 ', which (for other reasons) also eg in the variants according to FIGS 3 is present, and prevents folding back of the flex belt 23 in the dashed line position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention concerne un système de fermeture en plastique présentant une base de fermeture (6) en U vue en coupe transversale, prévue pour s'engager autour d'un col de récipient en plastique (8) qui présente un rebord (9) s'étendant radialement vers l'extérieur, la branche extérieure (4) de la base de fermeture en U (6) présentant une saillie (5), qui s'étend radialement vers l'intérieur et prévue pour s'engager derrière le rebord (9) du col de récipient (8) s'étendant radialement vers l'extérieur, et la branche radialement intérieure (1) de la base de fermeture (6) étant conçue pour s'engager à l'intérieur du col de récipient (8). L'objectif de cette invention est de réaliser un système de fermeture et une partie supérieure de récipient, éventuellement adaptée de manière spécifique à un système de fermeture de ce type, en combinaison avec ce système de fermeture, qui améliorent davantage la sécurité de manipulation des systèmes de fermeture selon l'état de la technique et, de préférence, permettent également des configurations d'une partie supérieure de récipient qui facilitent le vidage complet du récipient lorsque son contenu est versé. A cet effet, la branche intérieure (1) de la base de fermeture (6) présente une saillie (3), qui s'étend radialement vers l'extérieur et prévue pour s'engager derrière un bord intérieur inférieur du col de récipient (8).
PCT/EP2006/067299 2005-10-18 2006-10-11 Systeme de fermeture en plastique et combinaison d'un systeme de fermeture en plastique et d'une partie superieure de recipient WO2007045584A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005050088.9 2005-10-18
DE200510050088 DE102005050088A1 (de) 2005-10-18 2005-10-18 Kunststoffverschluß und Kombination aus Kunststoffverschluß und Behälteroberseite

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WO2007045584A2 true WO2007045584A2 (fr) 2007-04-26
WO2007045584A3 WO2007045584A3 (fr) 2007-08-02

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