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
  • 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
  • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
  • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
  • B65D47/0809—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions

Definitions

• the invention relates to an articulated container closure device. STATE OF THE PRIOR ART
• a hinged closure device for a container comprising at least a first part forming an annular base defining a reference axis, a cap and a hinge between the base and the cap, the articulation guiding the cap relative to the base between a closed position and a fully open position following a movement parallel to a reference plane containing the reference axis.
• the joint consists of a strap which, out of its areas of attachment to the cap and the base, is located at a distance from the cap.
• this strap has a zone of transverse weakening situated between two articulation zones, at mid-height of the strap, intended to promote the movement of the strap towards the position of opening of the cap and the maintenance in this position.
• Each articulation zone may be constituted by a line of transverse weakening located at a distance from the body of the cap.
• This hinge is not bistable, and in particular, has no elastic effect tending to move the cap to the closed position, even when the cap is already close to this position.
• WO 97/02189 is illustrated a reactive hinge, in particular for a container closure device comprising a base and a cap, which allows a significant rotation of the cap relative to the base, more than 180 ° around one or more virtual axes of rotation, with a spring effect that defines one or more stable positions.
• a hinge is however difficult to mold in the closed position.
• it consists of side arms separated by a central recess, which requires special arrangements to prevent the central recess is a pathway of dust or pollutant penetration inside the cap.
• An evolution of this articulation has been proposed in EP 1 075 432, but with the same disadvantages.
• WO 01/04015 In WO 01/04015 is described a two-piece articulated closure device, with a first piece constituting a base intended to be fixed to a container neck and a pourer projecting axially upwards from the base, and a second cap member, an attachment ring at the base, and a reactive hinge connecting the attachment ring and the cap.
• the fixing ring is in the axial extension of an outer peripheral wall of the cap and the hinge is integrated between the fixing ring and the peripheral wall of the cap, so as not to protrude outwards relative to to the peripheral wall and to the ring.
• the cap can rotate 180 ° relative to the fixing ring and at the base, between a closed position in which it covers the pourer and an open position.
• a hinged closure device for a container comprising at least one lower hinge support, a cap and a hinge connecting the lower hinge support to the cap, the hinge guiding the cap relative to to the lower hinge support between a closed position and a fully open position in a movement parallel to a reference plane of the closure device, the hinge being connected to the lower hinge support by two lower side material films and to the cap by two films of superior lateral materials.
• These lateral material films are positioned in V and point to a film of substantially horizontal median material constituting the axis of pivoting of the cap, which remains substantially immobile relative to the lower hinge support during the opening and closing of the cap, which considerably limits the height of the pourer, for a given hood diameter.
• the invention aims to overcome the drawbacks of the state of the art and in particular to provide a multi-reactive hinged closure device. stable positions, which is compatible with a molding in the closed position and which is compatible in particular with so-called sports plugs.
• an articulated closure device for a container comprising at least one lower hinge support, a cap and a hinge connecting the lower hinge support to the cap, the hinge guiding the cap relative to the lower hinge support between a closed position and a fully open position in a movement parallel to a reference plane of the closure device, the hinge being connected to the lower hinge support by a film of lower material and at the cap by a film of superior material, characterized in that the hinge comprises: a median element connected to the lower hinge support by a median portion of the film of lower material and connected to the cap by a middle portion of the upper material film, distant the middle portion of the lower material film; two lower side members located on either side of the reference plane and pointing towards the reference plane, each of the two lower side members having a lower side connected to the lower hinge support by a lateral portion of the lower material film; upper side connected to the medial element by a film of lower median material, and at least one free outer side; and two upper lateral members located on
• film is meant here a portion of lesser thickness than the surrounding walls of the closure device.
• the portions medians of the lower film and the upper film constitute two hinge areas distant from each other, while the lower side members and the upper side members have a bistable elastic function with respect to these hinge areas. It is thus possible to define for each articulation zone two stable positions, on either side of an unstable intermediate position, which makes it possible to define at least two stable positions of the cap relative to the base, and preferably at least three positions, or four stable positions.
• these two hinge zones give the hinge more than one degree of freedom, which is beneficial both in terms of comfort of use and mechanical strength, when the hinge is opened and closed several times at during the life of the product.
• the hinge has an outer face which, in the closed position and sectional view by any cutting plane perpendicular to the reference plane, is convex. This convexity is used to obtain the desired bistable effect during opening and closing.
• the outer face of the hinge is preferably also convex in a cutting plane containing the reference axis.
• the upper material film, the lower material film, each lower median material film, and each upper median material film are constituted by grooves open towards the inside of the cap.
• This arrangement of the grooves on the inner face of the hinge makes it possible, if necessary, to preserve a smooth appearance on the outer face of the hinge, which is preferable in particular in order to limit the risk of damaging the hinge in the event of a slight impact on the hinge. cap during handling, and also to facilitate the cleaning of the cap.
• These grooves may advantageously be obtained by means of appropriate shapes of the mold core intended to form the inside of the cap, the mold core being intended to have, with respect to the closure device, at the moment of the ejection, a parallel axial movement. to the reference axis.
• the grooves are then formed for some at least on an inner face of the hinge, turned radially towards the reference axis, and possibly for the film of material less than at least partially on the base.
• This arrangement also promotes residual deformation after first opening which is easily visible by a consumer and is therefore a first opening indicator. Indeed, the first opening and reclosing induce not only elastic deformations, but also slight plastic deformations of the constituent elements of the hinge.
• the reference plane is a plane of symmetry of the hinge. This arrangement allows very simply to ensure a plane movement of the hinge between the closed position and the fully open position, that is to say a movement remaining parallel to the reference plane.
• the middle portion of the lower material film forms, in the closed position, a rectilinear or curved lower segment, where appropriate reduced to a point, located entirely in a lower plane perpendicular to the reference plane.
• the middle portion of the upper material film forms, in the closed position, a rectilinear or curved upper segment, where appropriate reduced to a point, located entirely in an upper plane perpendicular to the reference plane.
• the lower segment has a different length of the upper segment, preferably less than the upper segment. This arrangement makes it possible to assign different elastic return characteristics for the rotation around the median portion of the lower material film and for the rotation around the middle portion of the upper material film.
• the return torque is a function of the deformation of the lower and upper lateral elements, and is greater when the length of the segment of the middle portion of the corresponding material film is small.
• the hinge is such that the cap is adapted to move from the closed position to the fully open position through at least a first stable lower semi-open position, the transition from the closed position to the stable lower semi-open position being effected by a first rotation around the middle portion of the upper material film.
• the first rotation from the closed position to the lower semi-open position covers an angle greater than 80 °.
• the hinge is such that during the transition from the lower stable semi-open position to the fully open position, a contact zone of the hinge comes into contact with a base of the closure device, integral with the lower hinge support, causing a rotation of the cap around the middle portion of the upper material film.
• the middle portion of the upper material film is located in the contact zone.
• the hinge is thus constituted so that its opening path by rotation about the lower axis of rotation, beyond stable semi-open position, causes an engagement of the hinge with the base, which prevents continuing the rotation about the lower axis of rotation, and allows the continuation of the movement by rotation about the upper axis of rotation. This ensures the desired opening sequencing in a controlled manner.
• the hinge is such that the cap is able to move from the closed position to the fully open position through at least a first stable upper semi-open position, the transition from the closed position to the upper stable semi-open position being effected by a first rotation around the middle portion of the upper material film.
• the first rotation from the closed position to the upper semi-open position covers an angle greater than 80 °.
• the lower hinge support has, in the closed position, a concavity turned towards an interior volume of the cap.
• the lower hinge support is formed on an annular attachment member for attachment directly or indirectly to a container neck, the lower material film being formed at an upper end of the lower hinge support.
• the lower material film therefore has a curvature about the reference axis, which contributes to the desired bistable effect when opening.
• the annular fastening element is a base of the closure device and comprises an outer peripheral wall provided with fixing reliefs to the container and defining a reference axis, the hinge does not protrude radially towards the end. external to the outer peripheral wall and preferably located radially inside the outer peripheral wall.
• This arrangement facilitates axial demolding because it minimizes undercuts.
• it also facilitates capping, minimizing the risk of impact on the hinge.
• the base of the closure device comprises a transverse annular wall extending radially towards the reference axis from an upper end of the outer peripheral wall of the base, the lower hinge support protruding axially of the transverse annular wall.
• the lower hinge support is closer to the reference axis than the outer peripheral wall of the base.
• the lower hinge support is thus located radially recessed with respect to the peripheral wall of the base, radially inside this peripheral wall of the base. This prevents the hinge protruding radially from the peripheral wall of the base.
• the hinge is a strip of solid continuous material, connected by an upper end to the cap and a lower end to the lower hinge support. In other words, the hinge is devoid of openings that would potentially provide entry routes for pollutants inside the cap.
• the strip of constituent material of the hinge has two opposite lateral edges, each comprising at least the free outer side of one of the lower lateral elements and the free outer side of one of the upper lateral elements, and preferably having an excess thickness, preferably facing an interior volume of the cap in the closed position.
• the two opposite lateral edges of the material strip constituting the hinge are located at a distance from one another, measured in a measurement plane perpendicular to the reference plane, which decreases when the measuring plane away from the lower hinge bracket.
• This arrangement contributes to limiting the size of the upper side members relative to the lower side members, which, as discussed above, promotes a sequencing of the opening.
• the opposite lateral edges of the web of material constituting the hinge lie opposite corresponding lateral edges of the cap.
• the film of higher material is continuous.
• the lower material film is preferably continuous.
• the cap comprises a top wall and a peripheral wall, and in that in the closed position before first opening, the hinge is neither projecting nor recessed with respect to the peripheral wall of the cap.
• the cap comprises a solid upper hinge support projecting towards the hinge, the upper material film being constituted at a lower end of the upper hinge support.
• the cap comprises a solid upper hinge support projecting towards the hinge, the upper material film being constituted at a lower end of the upper hinge support.
• the two upper lateral elements are triangular.
• the two lower side members are preferably triangular.
• the medial element for its part preferably has a general shape of rhombus or rhombus with two or four truncated points.
• FIG. 1 a sectional view of a closure device according to a first embodiment embodiment of the invention, in the closed position, in a cutting plane P which is a reference plane of the closing device;
• - Figure 2 a rear view of the closure device of Figure 1, in the closed position;
• FIG. 3 a sectional view of the closure device of FIG.
• FIG. 1 is a perspective view of the closure device of Figure 1, in the completely open stable position;
• Figure 7 a rear view of a closure device according to a second embodiment of the invention, in the closed position;
• Figure 8 a front view of a closure device according to a third embodiment of the invention, in the closed position;
• - Figure 9 a side view of the closure device of Figure 8, in the closed position.
• Figures 1 to 6 is illustrated an articulated closure device 10 for a container, comprising a first part 12 forming an annular base 14, a cap 16 and a hinge 18 between the base 14 and the cap 16, and a second piece 20 inserted inside the first piece 12 and constituting a spout.
• the spout 20 comprises a flat annular collar 22 which projects radially outwards, a lower sealing skirt 24 which extends from the flange 22 in the axial direction to fit inside.
• the container neck (not shown) in contact with an inner wall of the neck of the container, and a chimney 26 which protrudes from the collar in the axial direction opposite to the lower sealing skirt.
• the chimney 26 has a relatively cylindrical portion 28, optionally having a shallow annular groove 30 and / or a thin annular bead, to form an annular peripheral seal in contact with the cap 16.
• the chimney 26 is extended by a mouth-engaging portion 32, the diameter of which gradually decreases as it moves away from the flange 22, this mouth-engaging portion 32 delimiting an upper opening 34, which may optionally be equipped with a star flow separator 36.
• the spout 20 and defines a passage from the inside of the container to the upper opening 34.
• the walls of the spout 20 which constitute the lower sealing skirt 24, the flange 22 and the chimney 26 have a symmetry of revolution.
• the base 14 comprises a lower annular peripheral wall 38 defining a reference axis 100 and provided with fixing reliefs 40 to the container, here in the form of threads for fixing by screwing.
• the reference axis 100 of the base will be used, throughout the present description, as a reference for defining radial and axial directions.
• the closure device is arbitrarily oriented with the reference axis 100 parallel to the vertical, and the base 14 located below the cap 12.
• the base 14 further comprises a transverse annular wall 44 extending from an upper end of the lower annular peripheral wall 38, radially towards the reference axis 100.
• Annular bead 46 projects radially inwards from the lower annular peripheral wall 38, at a distance from the flat annular wall 44, so as to delimit an attachment groove 48 into which the flange 22 of the pouring spout is inserted.
• the base further includes a lower hinge support 50 projecting axially toward the hinge 18 from an inner annular flange of the flat annular wall 44.
• the cap 16 has a top wall 52 and a peripheral wall 54 defining an interior volume in which is housed the mouth engaging portion 32 of the chimney 26.
• the lower end of the peripheral wall 54 is preferably provided with a snap ring 56, intended to snap into the annular groove 30 of the spout 20.
• Diametrically opposite the hinge 18 is formed at the junction between the peripheral wall 54 and the top wall 52 a cap 58 protruding radially outwardly and constituting a preferred area to take in hand the closure device 10 when it opens.
• the inner face of the peripheral wall 54 of the cap 16 may be provided with a stiffening rib 60 in this preferred zone of grip, the rib 60 extending in a radial plane and projecting radially inwardly.
• the inner face of the top wall 52 is provided with a sealing skirt 62 cooperating with the chimney 26 of the spout 20 to close the upper opening 34 defined by the pouring spout 20, or by pressing against an inner wall of the upper opening 34, as shown in Figure 1, or by pressing against an outer wall of the opening, as is known to those skilled in the art.
• the peripheral wall 54 of the cap 16 has a cutout corresponding to the location of the hinge 18, with two lateral flanges 64 located opposite two opposite side edges 66 of the hinge 18. The portion of the cap 16 located between these two lateral flanges 64 forms a solid upper hinge support 68 which protrudes axially from the top wall 52 towards the hinge 18.
• the cap 16 may further be provided with a reinforcing wall 70 located, in the closed position, between the hinge 18 and the hinge 18. spout 20 and connecting the region of the peripheral wall 54 near one of the lateral flanges 64 to the region of the peripheral wall 54 located near the other lateral flange 64.
• the hinge 18 forms a strip of continuous material extending from the lower hinge support 50 to the upper hinge support 68, connected to the lower hinge support 50 by a continuous lower material film 72 formed at an upper end of the support. lower hinge 50, and connected to the upper hinge support 68 by a continuous top material film 74 formed at a lower end of the upper hinge support 68.
• the hinge 18 has an outer face which, in the closed position and sectional view by any cutting plane perpendicular to the reference axis (and in particular in the section plane of Figure 1), is convex.
• the sectional plane P of Figure 1 which includes the reference axis 100, also constitutes a plane of symmetry of the hinge 18. It will serve as a reference plane for the description of the hinge 18 and the closure device 10.
• the hinge 18 comprises a median element 76 of general shape lozenge with truncated points, connected to the base 14 by a median portion 72.1 of the lower material film 72 and connected to the cap 16 by a portion 74.1 median of the upper material film 74, distant from the middle portion 72.1 of the lower material film 72.
• the hinge 18 further comprises two triangular lower lateral elements 78 located on either side of the reference plane P and pointing towards the reference plane P, and two triangular upper lateral elements 80 located on either side of the reference plane P and pointing towards the reference plane P.
• Each of the two lower lateral elements 78 has a lower side connected to the base by a linear side portion 72.2 of the lower material film 72, an upper side connected to the medial member by a lower median linear material film 82, and a free outer side constituting a portion of the associated edge 66 of the hinge 18.
• Each of the two upper side members 80 has an upper side connected to the cap by a linear side portion 74.2 of the material film upper 74, a lower side connected to the medial member 76 by an upper median linear material film 84, and a free outer side constituting a portion of the associated edge 66 of the hinge 18.
• the upper material film 74, the lower material film 72, the two lower middle linear material films 82 connecting the two lower side members 78 to the middle member 76, and the two upper middle linear material films 84 connecting the two upper side members 80 to the medial element 76 are constituted by grooves open towards the inside of the cap 16.
• the middle portion 72.1 of the lower material film 72 forms, in the closed position, a lower segment, where appropriate reduced to a point, located entirely in a plane Pi perpendicular to the reference axis 100.
• the middle portion 74.1 of the upper material film forms, in a closed position e, an upper segment, where appropriate reduced to a point, situated entirely in a plane Ps perpendicular to the reference axis 100.
• the lower segment 72.1 is situated at a distance from the upper segment 74.1 and has a length less than the upper segment 74.1 .
• the lower hinge support 50 is located on a geometric cylinder centered on the reference axis, the lower material film 72 being positioned on the cylinder, and thus having a concavity turned towards the inside of the cap and towards the axis of the cylinder. reference 100.
• the upper hinge bracket 68 also has a concavity turned towards the inside of the cap and towards the reference axis.
• the two opposite side edges 66 of the hinge 18 are each constituted by the free outer side of one of the lower side members 78, by the free outer side of one of the elements upper side 80, and optionally a small portion of one side of the median element 76. These side edges 66 preferably have an extra thickness, preferably facing the reference axis.
• the hinge 18 In the closed position, in Figures 1 and 2, the hinge 18 is located in the continuity of the peripheral skirt 54 of the cap 16, so that in the closed position, the hinge 18 is neither projecting nor recessed by relative to the peripheral wall 54 of the cap 16.
• the lateral edges 66 of the hinge 18 are then located facing the lateral flanges 64 of the peripheral wall 54 of the cap 16 and at a distance from one another, measured in a plane perpendicular to the reference axis 100, which decreases when the plane perpendicular to the reference axis 100 approaches the top wall 52 of the cap 16 and moves away from the transverse annular wall 44 of the base 14.
• the hinge 18 thus described makes it possible to guide the cap 16 relative to the base 14 between a stable closed position illustrated in FIG. 1 and a completely open stable position illustrated in FIGS. 5 and 6 by a movement parallel to the plane of The hinge allows two alternative opening paths, one passing through a first stable semi-open position illustrated in Figure 3, the other passing through a second stable semi-open position illustrated in Figure 4.
• the first opening trajectory begins with the transition from the closed position to the first stable semi-open position illustrated in FIG. 3, which takes place by a first rotation about a lower axis of rotation perpendicular to the plane.
• P reference defined by the middle portion 72.1 of the lower material film 72, and passing through a point of intersection between the lower material film 72 and the reference plane P.
• the first rotation of the closed position to the first position semi -coverage covers an angle preferably greater than 80 ° and less than 130 °. In the example illustrated in Figure 3, this angle is about 120 °.
• the two triangular lower lateral elements 78 change direction of curvature by deforming elastically, their inner face, turned towards the reference axis in the closed position, initially concave, convex front in the first semi-open position.
• this elastic deformation gives the hinge 18 a bistable behavior, the initial deformation of the lower side members 78 tending to return the hinge 18 to the closed position in a first part of the race between the closed position and the first semi position -coverage stable, then tending on the contrary to return the hinge 18 to the first semi-open position after exceeding an intermediate position between the closed position and the first semi-open position.
• the two triangular upper lateral elements 80 for their part, are practically not deformed during this phase.
• a contact zone 86 of the hinge in which is the middle portion 74.1 of the upper material film 74, comes into contact with the base 14 at the level of the transverse annular wall 44 or the peripheral wall 38.
• the cap 16 then flips around an axis of greater rotation perpendicular to the reference plane P, defined by the middle portion 74.1 of the upper material film 74 and passing through an upper intersection point between the upper material film 74 and the reference plane.
• the opening continues while the cap 16 is still resting against the base 14, with a compound movement in which the cap 16 pivots about the upper axis of rotation defined by the middle portion 74.1 of the upper material film 74 in the direction of the opening while the median element pivots about the lower axis of rotation defined by the middle portion 72.1 of the lower material film 72 in the opposite direction (closing direction).
• the two triangular upper lateral elements 80 change their direction of curvature by deforming elastically, their inner face, which was initially turned towards the reference axis in the closed position and of concave shape, becoming convex in the fully open position. .
• the second opening path begins with the transition from the closed position of FIG. 1 to the second stable semi-open position illustrated in FIG. 4, which takes place by a first rotation about the axis of rotation. perpendicular to the reference plane P, defined by the middle portion 74.1 of the upper material film 74, and passing through a point of intersection between the upper material film and the reference plane P.
• the first rotation of the closed position to the second semi-open position covers an angle preferably greater than 80 ° and less than 130 °. In the example illustrated in Figure 4, this angle is about 85 °.
• the two triangular upper lateral elements 80 change direction of curvature elastically deforming, their inner face, which was initially turned towards the reference axis and concave in the closed position, becoming convex in the semi-open position .
• This elastic deformation gives the hinge a bistable behavior, the initial deformation of the upper lateral elements 80 tending to return the hinge 18 to the closed position in a first part of the race between the closed position and the second stable semi-open position, then tending on the contrary to return the hinge to the second semi-open position after passing an intermediate position between the closed position and the second semi-open position.
• the two triangular lower lateral elements 78 for their part, are practically not deformed during this phase.
• This elastic deformation gives the hinge 18 a bistable behavior, the initial deformation of the lower side members tending to return the hinge 18 to the second semi-open position in a first part of the race between the second semi-open position and the fully closed position. open, then tending on the contrary to return the hinge 18 to the fully open position after passing an intermediate position between the second semi-open position and the fully open position.
• the two triangular upper lateral elements 80 for their part, are also deformed during this phase, but without changing the direction of curvature.
• the lower hinge support 50 and the upper hinge support 68 deform very little or not at all, so that the positioning of the film of material lower 72 relative to the lower hinge support 50 and the positioning of the upper material film 74 relative to the upper hinge support 68 remain unchanged or substantially unchanged during opening.
• the concavity of the lower material film 72 and the concavity of the upper material film 74 remain unchanged.
• the first of them is the direction of the forces applied by the user on the closing device, which depend in particular on its grip: it is conceivable that the behavior of the hinge 18 can vary, if one compares a situation wherein the user holds the base 14 fixed (for example by holding the container to which the base is attached) and exerts a force only in the area of the cap 58, and a situation in which the user takes the cap 16 between the thumb and forefinger, the thumb coming into the area of the cap 58 and the index being resting against the hinge 18 is high up close of the upper material film 74, either in the lower part near the lower material film 72.
• Another parameter that influences the sequencing of the opening is the shape of the hinge 18, which determines the elastic torque to overcome to rotate the hinge about the lower axis of rotation and the elastic torque to overcome to make pivot the hinge around the upper axis of rotation. A significant difference between these two pairs will lead to a sequenced opening beginning with rotation about the axis of rotation requiring the lowest torque.
• the designer of the closing device can vary the values of the two elastic couples by dimensioning the lower triangular side members 78 and upper 80, and in particular by varying their size and their concavity in the closed position.
• Another parameter for influencing the behavior of the hinge during opening is the interference that may possibly exist between the opening path and the spout 20, in particular between the spout 20 and the skirt of the opening.
• the interference between the spout 20 and the cap 16 is important according to the first trajectory, in which case the cap 16 is naturally guided along the second trajectory.
• the closure When the user closes the closure device 10 from the fully open position, the closure follows a path passing either by the first semi-open position, or by the second semi-open position.
• first part 12 constituting the base 14, the cap 16 and the hinge 18, can be manufactured in closed position, the interior volume defined by this part being compatible with a single piece of mold extracted axially, the low undercuts observed at the level of fixing reliefs 40, the sealing skirt 62 and the material films 72, 74 being compatible with an ejection of the workpiece 12 while hot.
• the first piece may in particular be made of polypropylene or high density polyethylene, and may optionally be transparent. Other subjects are however possible.
• Figure 7 is illustrated a hinge according to an alternative embodiment, which differs from the previous by the proportions of the various components of the hinge 18, and in particular by the fact that the middle portion 72.1 of the lower material film is reduced to a point, corresponding to the intersection of the lateral portions 72.2 of the lower material film 72 and the lower middle material films 82.
• the median element 76 has a general shape closer to a rhombus than in the embodiment of Figure 2, because it has only one vertex truncated by the middle portion 74.1 of the upper material film 74.
• the edges 66 of the hinge 16 according to Figure 7 has no part of the middle element.
• This variant embodiment is particularly suitable for a closure device whose cap has a large axial dimension, or a ratio between the height of the cap 16, measured parallel to the reference axis 100, and the outside diameter of the cap 16, relatively important, for example strictly greater than 0.50.
• the manufacture of the first part 12 in the closed position allows, if necessary to provide breakable bridges 88 directly between the base 14 and the lower end of the peripheral wall 54 of the cap 16 and / or a first opening indicator band 90 connected to the base 14 by breakable bridges 92 and to the cap 16 by other breakable bridges 94.
• the first opening indicator band 90 has an end connected to the base 14 or cap 16 by a bridge 96 of greater dimension in width and / or thickness so as to be unscrewable, and at its opposite end, may also have a catch tab 98, which may itself be connected to the cap by a breakable trigger guard 99.
• a bridge 96 of greater dimension in width and / or thickness so as to be unscrewable, and at its opposite end, may also have a catch tab 98, which may itself be connected to the cap by a breakable trigger guard 99.
• a bridge 96 of greater dimension in width and / or thickness so as to be unscrewable, and at its opposite end, may also have a catch tab 98, which may itself be connected to the cap by a breakable trigger guard 99.
• the chimney 26 of the spout 20 may not have symmetry of revolution, and the opening 34 may not be centered on the reference axis 100.
• the breakable bridges 88, 92, 94, 99 or some of them can be replaced
• the lower hinge support 50 can be formed either in one piece with the base 14, as illustrated above, or attached to the base 14.
• the lower hinge support 50 can be irreversibly clipped. in a groove formed on the base 14. It can for example provide an annular groove on the transverse wall 44 of the base 14 and a fastening ring integral with the lower hinge support 50.
• Such an arrangement may allow for example to form the device two-piece closure, one constituting the fixing ring at the base, the lower hinge support, the hinge and the cap, the other forming a base to be fixed on a container neck and a spout.
• the attachment reliefs 40 to the container may be of any type, for example bayonet or snap-fastening.
• the mechanical connection between the lower end of the lower annular peripheral wall 38 and the container neck may be of any known type capable of preventing separation between the base 14 and the neck of the container.
• the distance between the lateral edges 66 of the hinge 18, measured in a plane perpendicular to the reference axis 100 is constant, or even increases, when the perpendicular plane to the reference axis 100 approaches the top wall 52 of the cap 16 and moves away from the transverse annular wall 44 of the base 14.

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• 2015
  • 2015-08-12 FR FR1557686A patent/FR3040046B1/fr not_active Expired - Fee Related
• 2016
  • 2016-08-10 PL PL16766995.1T patent/PL3334661T3/pl unknown
  • 2016-08-10 WO PCT/FR2016/052063 patent/WO2017025692A1/fr active Application Filing
  • 2016-08-10 EP EP16766995.1A patent/EP3334661B1/fr active Active
  • 2016-08-10 HU HUE16766995A patent/HUE060118T2/hu unknown

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