FR2510520A1 - Stopper for receptacle neck - has one wall which is axially deformable and elastic to engage neck - Google Patents

Abstract

The receptacle stopper enables opening and closing to be done by axial compression or leaving a part movable relative to a fixed point on the stopper. The two parts are joined by an axially deformable wall (4) formed, on one side, by its outer circular edge (6) on the stopper, fitting on the receptacle neck (11). On the other side, it is formed by the inner edge (2) fixed to the movable stopper part. The cylindrical neck inside forms the fixed part and a hollow stopper (1) forms the moving part.

Description

 The present invention relates to a closure for containers made of glass, plastic or metal and, in particular those containing liquid products, this closure ensuring the plugging or opening of the aforementioned containers by bringing together or moving them axially away from a movable part with respect to to a fixed part of said closure.

 According to the invention, the two above-mentioned parts are joined together by an axially deformable thin wall, adapted to guide the movable part relative to the fixed part and to push it firmly against this fixed part in the closed position.

 I1 must be understood that the shape of the axially deformable wall, the manner of making its connection with the container of a C8tÉ and with the movable part, ensuring the plugging of the other container, the shape and size of the plug and the neck, the means ensuring the tightness, the gripping members and the inviolability of the device, etc. can vary within wide limits without departing from the spirit of the invention for this.

 According to one embodiment of the invention, the axially deformable thin wall having a cylindrical or slightly conical shape, converting upwards, presents on its flattened or rounded upper edge, a plug cooperating with the neck of the container, while its also flattened or rounded lower edge is integral with a skirt provided with known means enabling it to be sealed, by elastic clipping on the outside face of the neck of the aforementioned container.

 I1 is understood that the axially deformable thin wall of the embodiment described above also, may have the shape of an accordion bellows, a curved membrane or the like.

 According to another embodiment, the cylindrical inner face cooperating with the movable plug is formed by a tubular element provided with a radially oversized face, interposed between the end face of the neck of the container and the non-cylindrical surface of the body comprising the axially wall deformable.

 According to yet another embodiment, the stopper is formed from a single material or rigidly assembled with the neck of the container while the movable tubular element in the shape of a neck cooperating with the abovementioned stopper is made from a single material with the thin wall which is axially deformable.

 Often, especially in metal containers, it is advantageous to remove the protuberant neck of the aforementioned containers to facilitate their palletizing and storage.

 The device according to the invention gives an ideal solution to this problem by providing a closure fixed by elastic clipping on the folded edge towards the inside of the metal can, this closure having outwards in the closed position the extremely reduced thickness while by presenting in the open position a tubular part in the form of an elongated neck towards the inside.

 The aforementioned closure, composed of the two elements assembled together before their fixing by elastic clipping on the metal container, sx presents as a very flat assembly suitable for easy automatic mounting.

 The invention will be better understood with the aid of the description which will be given thereof, relating to several embodiments chosen by way of nonlimiting example and represented in the appended drawings.

On these drawings
FIG. 1A shows in axial section a closure, according to the invention in the closed position, the aforementioned closure assembled to the neck of a plastic bottle.

 Figure 1B shows these same elements, with the closure open.

 Figure 2 shows in axial section the closure similar to that shown in Figures 1 A and 1 B; mounted on the outside of a neck of a glass bottle in the open position on the left and in the closed position on the right of the vertical axis.

 FIG. 3 represents in axial section a closure comprising a tubular element mounted inside the neck of the container, this tubular element cooperating with the movable plug, the aforementioned closure represented in the open position on the left and in the closed position to the right of the vertical axis.

 4 shows in axial section a closure mounted on the outer face of a neck of a glass container, the aforementioned closure comprising the axially deformable wall in the form of a bellows is shown in the open position on the right and in closing position to the right of the vertical axis.

 FIG. 5 represents in axial section a closure in which the cap is rigidly fixed by clipping inside the neck of the container while a tubular element produced in single material with an axially deformable thin wall, cooperates with the aforementioned cap, the closure above shown in the open position on the left and in the closed position on the right of the vertical axis.

 FIG. 6 shows in axial section a stopper provided with a radially oversized flat face wedged between the end face of the neck and the non-cylindrical surface of the axially deformable wall in the form of a bellows terminated by a tubular element cooperating with the aforementioned stopper closing in the left opening position.

 FIG. 7 shows in axial section the stopper produced on a single material with the neck of a plastic container.

 Figure 8 shows in axial section the closure according to the invention, composed of two elements assembled together, the aforementioned closure fixed by clipping on the edge folded inwards from a metal container, the aforementioned closure shown in position d opening to the right and in the closed position to the right of the vertical axis.

 Identical or equivalent elements have the same indices in all the figures.

 In FIG. 1A, the hollow plug 1 is connected by the rounded rim 2 of the closing base 3 to the frustoconical thin wall 4 provided with the openings 5 and 5 '. The rounded edge 6 of the wall 4 is connected on the one hand to a cylindrical wall 7 directed upwards and forming the neck of the closure and, on the other hand, to a skirt 8 directed downwards and having a groove 9 adapted to come into tight contact with the two radially oversized faces 10 and 10 'of the neck II.

 The cylindrical inner face 12 of the neck 11 is adapted to come into tight contact with the cylindrical skirt 13 of the plug 1.

 The hollow rod 14 produced on the closing bottom 3 of the plug 1 makes it possible to effect the axial displacements of the plug 1 between the closed position shown in FIG. 1 A and the open position shown in FIG. 1 B in which a liquid contained in the container, not shown, can flow through the neck 11 and the orifices 5 and 5 '.

 It should be emphasized that on the one hand the number and size of the aforementioned orifices may be arbitrary and, on the other hand that the rounded edges 2 and 6 of the wall 4 are produced in such a way that they ensure the stable positions with open or closed cap.

 Thus, in the position shown in FIG. 1 A, the flange 2 presses firmly against the face 10 "of the neck 11, ensures the axial sealing of the closure, according to the invention and at the same time prevents any accidental opening. of the plug.

 The operation of the closure fixed to the glass neck, shown in Figure 2 is identical to that shown in Figures 1 A and 1 B, the thin cylindrical wall 4 with the rounded edges 2 and 6 ensuring the axial seal of the closing on the one hand and preventing accidental opening of the cap on the other hand.

 The tubular element 15 shown in FIG. 3 has on its upper end a flat, radially oversized face 16, wedged between the end face 10 of the neck 11 of the container and the non-cylindrical surface of the groove 9, the plug 1 connected by its rounded edge 2 to a curved membrane 4 provided with openings 5, 5 ', the periphery of the membrane 4 connected upwards to a tubular element 7 and downwards to a skirt 8 having a groove 9, adapted to come into tight contact with the two radially oversized faces 10 and 10 'of the neck 11.

 The closure of FIG. 4, fixed on the neck II of a glass container, has the plug 1 connected by a rounded wall 2 to a flat bottom 17 provided with the openings 5, 5 ′, the bottom 17 delimited by a tubular element 7 directed upwards and by a thin wall 4 in the form of an axially deformable bellows 4. The lower edge of the wall 4 connected to the skirt 8 having a groove 9, adapted to come into tight contact with the end face and with the radially oversized area 10 ′ of the neck 11.

 The plug 1 of the closure provided with circular sealing ribs 1 ′ shown in FIG. 5, this plug forms in the center of a flat bottom 18 provided with the orifices 5, 5 ′ is made of single material with the skirt 19 directed towards the bottom and having on its upper end a radially oversized rim 20 and on its lower end a bead 21 projecting from the outside face of the skirt 19.

 The rigid fixing of the body thus formed inside the neck II of the container is produced in the known manner by the elastic relaxation of the flange 20 against the face 10 of the neck 11 and by the upper face of the bead 21 pressing against the inner annular area 22 of the neck.

A tubular element 23 connected by a flat annular wall 2 to the frustoconical thin wall 4 flaring downwards produces the movable neck, cooperating with the plug 1, the two elements, namely that comprising the plug 1 and that presenting the tubular element 23 being joined together by clipping the rim 20 into the groove 9 of the skirt 8.

 A detachable guarantee closing base 24, tearfully linked to the movable neck 23 has a tongue 25, allowing the bottom 24 to be removed.

 The cap 1 of FIG. 6 formed in the center of the flat bottom 18, provided with the orifices 5, 5 ′, is rigidly fixed on the neck of the container, the bottom 18 being wedged between the end face of the neck II and the inner annular area of the groove 9 formed inside the skirt 8.

 The tubular element 23 produced in single material with the skirt 8 is connected to it through a flat bottom 17 and an axially deformable wall in the form of a bellows 4.

 In FIG. 7 is shown schematically in axial section the neck II of a plastic container, produced by blowing in single material with the plug 1 connected to the neck 11 by a flat bottom 18, provided with the orifices 5, 5 '.

 The closure according to the invention, shown in Figure 8, is suitable, mainly to be used on containers such as metal cans.

 The flat bottom 18 comprising in its central part the plug 1 is formed in single material with a frustoconical wall 26 diverging upwards and having orifices 5, 5 '.

 The circular rim 27 directed towards the center and formed on the upper end of the wall 26 is fixed permanently by elastic relaxation in the circular groove 28, formed on the external face of the skirt 19, presenting on its upper end a rim 20 radially oversized on the one hand and a slightly frustoconical thin wall 4 converging upwards, on the other hand, this wall connected by a flat plate 2 to the tubular element 23 cooperating with the plug 1 and thus producing the neck etensi- wheat from the container.

 The rigid attachment of an assembly thus formed of the two aforementioned elements, on the metal container, is produced in the known manner by the elastic relaxation of the rim 20 against the face 29 of the container on one side and by the upper face of the rim 27 pressed against the circular edge 30 folded towards the inside of the container.

 A detachable closure base 24, which can be torn off, which can be teared to the movable neck 23 has a tongue 25 allowing the base 24 to be removed.

 A gripping element 31 linked to the movable neck 23 allows axial displacement of the neck 23 from the closed position shown on the left of FIG. 8 to the open position, shown on the right of the middle figure.

Claims (10)

1. Container closure device having the means for closing or opening the container by approximation or axial displacement of a movable part relative to a fixed part of the aforementioned closure, characterized in that these two parts are combined between them by an axially deformable wall 4, delimited, on one side by its circular outer edge 6 secured to the part of the closure fixed on the neck II of a container and on the other side, by its circular edge interior 2 secured to the movable part of the aforementioned closure, this wall adapted to guide the movable part relative to the fixed part during the opening or closing of the container and to ensure that the movable or green or closed part has a stable position. 2. Device according to claim 1 wherein the inner cylindrical face of the neck of a container or an intermediate element adapted to be joined thereto, has the fixed part while a cap 1, preferably hollow and provided circular ribs on its outer cylindrical face of elastically deformable material, connected by a body having an axially deformable wall 4, to the aforementioned container, produces the mobile part of the device according to the invention. 3. Device according to claim 1, in which the central part of the neck 11 or of an intermediate element secured to it, produced in the form of a hollow plug 1, preferably directed upwards and provided with circular ribs on its face. cylindrical outer, has the fixed part of the closure, while a tubular element 23 in the form of a neck, cooperating with the aforementioned plug and connected by a body, comprising an axially deformable wall 4 to the container realizes the movable part of the closing. 4. Device according to claims 1 and 2 wherein a hollow plug 1 of elastically deformable material, provided with a gripping element 14 directed upwards in the form of a rod, a tube or the like, this plug cooperating with the inner face of the neck of a container, is made in one piece with a wall 4 in the form of a cylinder or a cone slightly flaring downwards in the open position and having at least one ow er- ture 5 and having at its rounded upper edge 2 the aforementioned plug, while its rounded lower edge 6 has on its periphery on the one hand a cylindrical wall directed upwards 7 and on the other hand a skirt axially directed towards the bottom 9, provided on its inner face with known means providing it with a sealed fixing, on the outer face of the neck II of a container. 5. Device according to claims 1 and 2 wherein a hollow plug of elastically deformable material, provided with a gripping element directed upwards in the form of a rod, a tube or the like, this plug cooperating with the face inside the neck of a container, is formed in one piece with a membrane having at least one opening, curved upward in the open position, this membrane having on its periphery, on one side a circular rim axially directed upwards and on the other side a skirt axially directed downwards, having on its inner face known means ensuring it a tight fixing on the outer face of the neck of a container. 6. Device according to claims 1 and 2, wherein the hollow plug 1 of elastically deformable material, cooperating with the inner face of the neck 11 of a container, is formed in one piece with a body provided with a flat bottom or convex 17 having at least one opening 5, this bottom having on its periphery on one side a circular rim axially directed upward 2 and on the other side a side wall in the form of a deformable bellows 4 axially directed downward , a circular skirt 8 formed on the lower edge of the aforementioned wall having on its inner face known means ensuring its tight fixing on the outer face of the neck of the container. 7. Device according to claims 1, 2 and one of claims 4, 5 or 6 in which a hollow plug 1 of elastically deformable material, cooperating with the cylindrical inner face of an intermediate element 15 fixed inside the neck 11 d a container, the aforementioned stopper, formed in one piece with a body comprising one of the axially deformable walls, described in claims 4, 5 or 6, has known means making it possible to ensure its tight fixing on the face outside of the neck of a container by wedging at the same time by axial pressure the flat face 16 formed radially projecting from the upper edge of the above-mentioned tubular element 15, placed between the non-cylindrical annular surface of the body comprising the cap and the end face 10 of the neck 11. 8. Device according to claims 1 and 3 wherein a hollow plug 1 made in the center of a flat sealing bottom 18, having at least one opening 5 is formed in one piece with a body 19 having known means for ensure its tight fixing inside a neck under the action of the elastic axial force brought into play during the mounting of the closure on the container, by deformation of a radially oversized rim 20 of the aforementioned body 19, s' pressing against the end face of the neck 11 and at the same time wedging an annular face placed between the abovementioned flange and the end face of the neck, this annular face formed on the periphery 9 of one of the axially deformable walls, described in claims 4, 5 or 6, this deformable wall having, in the central part of its opposite end, a tubular element 23 in the form of a neck provided with a detachable closing base 24, detachable, tearably connected to the neck and hubs gripping ns allowing its axial displacement, this tubular element cooperating with the aforementioned plug. 9. Device according to claims 1 and 3 wherein a hollow plug 1 placed in the central part of a flat sealing bottom 18 having at least one opening 5 made of single material with the container 11, this plug adapted to cooperate with a tubular element , in the form of a neck provided with the gripping means, closed by a detachable closing cover guarantee, detachably linked to the neck, this neck formed integrally with a body comprising one of the axially deformable walls described in claims 4, 5 or 6, on the other hand, known means making it possible to ensure its leaktight attachment to the outside face of the aforementioned container neck. 10. Device according to claims 1 and 3 mainly adapted to be used on containers such as metal cans, in which a hollow plug 1 of elastically deformable material, produced on the inner edge of a frustoconical wall 26 diverging upwards, this wall having at least one opening 5 and provided on its upper edge with an annular flange 27 directed inwards, is fixed permanently by elastic clipping of the abovementioned flange in a circular groove 28 formed on the external face of a cylindrical skirt 19 having - at its upper end on one side a radially oversized rim 20 and on the other side a thin cylindrical or slightly frustoconical wall 4 converging upwards in the open position, the aforementioned thin wall having at its flattened or rounded upper edge 2 of a tubular element in the form of a neck 23 provided with a detachable guarantee closing base 24 linked in a tear-away manner to this neck and of s gripping means 31 allowing its axial displacement, this neck cooperating with the aforementioned plug; the tight fixing by clipping to the elastic detent of this device on the container being ensured on the one hand by the elastic deformation of the aforementioned radially oversized rim 20 resting on the face of the container 29, and on the other hand, by the radially circular rim directed inwards 27 pressed against the circular edge 30 of the metal wall of the container folded inwards.