EP0762976A1 - Device for closing a threaded neck container - Google Patents

Device for closing a threaded neck container

Info

Publication number
EP0762976A1
EP0762976A1 EP95920985A EP95920985A EP0762976A1 EP 0762976 A1 EP0762976 A1 EP 0762976A1 EP 95920985 A EP95920985 A EP 95920985A EP 95920985 A EP95920985 A EP 95920985A EP 0762976 A1 EP0762976 A1 EP 0762976A1
Authority
EP
European Patent Office
Prior art keywords
container
neck
plug
bore
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95920985A
Other languages
German (de)
French (fr)
Other versions
EP0762976B1 (en
Inventor
Patrick Lastavel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0762976A1 publication Critical patent/EP0762976A1/en
Application granted granted Critical
Publication of EP0762976B1 publication Critical patent/EP0762976B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/24—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with poppet valves or lift valves, i.e. valves opening or closing a passageway by a relative motion substantially perpendicular to the plane of the seat
    • B65D47/241—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with poppet valves or lift valves, i.e. valves opening or closing a passageway by a relative motion substantially perpendicular to the plane of the seat the valve being opened or closed by actuating a cap-like element
    • B65D47/242—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with poppet valves or lift valves, i.e. valves opening or closing a passageway by a relative motion substantially perpendicular to the plane of the seat the valve being opened or closed by actuating a cap-like element moving helically
    • 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
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • 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
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem
    • B65D47/2075—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem in which the stem is raised by the pressure of the contents and thereby opening the valve

Definitions

  • the invention relates to a device for closing a container with a threaded neck such as a tube of paint, gouache, toothpaste or ointment.
  • This device is intended in particular to prevent drying of the contents of the container, air intakes and blockage of the cap.
  • Swiss Patent No. 323,486 relates to a device for closing a container with a neck such as a tube, comprising a stamping part, a cap, mounted by screwing on the neck and two cooperating stop stops provided , respectively, on the container neck and on the cap, to prevent the latter from detaching from the container.
  • This device has the major drawback of requiring the presence of a stopper on the neck of the container. It therefore requires that the neck of the container be transformed so as to include this stop. Such a transformation makes the production of the tubes more complex and it entails an adaptation of the machines making it possible to manufacture these tubes. All this translates into a high cost price of the tubes provided with such a closure device.
  • This device includes at least:
  • a plug having a central part comprising a bore provided with a tapping capable of cooperating with the threading of the neck of the container, and an upper part comprising an opening, the end of said tapping being separated from said upper part by a sliding surface
  • an element for obstructing said opening is distinguished in that it further comprises: - an isolation element having fixing means capable of being inserted in the neck of the container and a flare whose end is sized to come into contact with said sliding surface of said plug over the entire circumference of said bore so as to produce a tight barrier making it impossible for the contents of the container to pass.
  • Such a device offers the advantage of being able to be mounted directly on the threaded neck of a container, without this neck needing to be adapted. In addition, it remains removable. Thus, once the container is empty, the device can be recovered and installed on another container.
  • FIGS. 1 to 24 are illustrations of the device according to the invention.
  • Figure 1 shows, schematically and in section, a device according to the invention mounted on a threaded neck, when the cap is fully screwed.
  • FIG. 1 shows, schematically and in section, the device of Figure 1, when the cap is partially unscrewed.
  • Figure 3 shows, schematically and in section, the device of Figures 1 and 2, when the user pressed on the container, the arrows symbolizing the movement of the material contained in the container.
  • Figures 4 and 5 show, schematically and respectively, in front view in section and in bottom view, a plug of the device according to the invention.
  • Figures 6 and 7 show, schematically and respectively, in front view in section and in bottom view, an insulation element of the device according to the invention.
  • Figures 8 and 9 show, schematically and respectively, in front view in section and in bottom view, a first variant of the isolation element of the device according to the invention.
  • FIG. 10 schematically represents, in front view in section, a second variant of the isolation element of the device according to the invention.
  • FIG. 11 schematically represents, in front view in section, a third variant of the isolation element of the device according to the invention.
  • Figure 12 shows schematically and in section, a device according to the invention comprising an isolation element similar to that of Figure 11 and mounted on the threaded neck of a container.
  • FIGS. 13a and 13b schematically represent a device according to the invention comprising a fourth variant of the isolation element, respectively, when the cap is fully screwed and when the cap is fully unscrewed.
  • Figures 14 and 15 show, schematically and respectively, in front view in section and in bottom view, an obstruction element of the device according to the invention.
  • Figures 16 and 17 show, schematically and respectively, in front view in section and in bottom view, a first variant of the obstruction element.
  • Figure 18 shows schematically and in section, a device according to the invention comprising the variant of the blocking element of Figures 16 and 17, and mounted on the threaded neck of a container.
  • Figures 19 and 20 show, schematically and respectively, in front view in section and in bottom view, a second variant of the obstruction element of the device according to the invention.
  • Figure 21 shows schematically and in section, a device according to the invention comprising the variant of the blocking element of Figures 19 and 20, and mounted on the threaded neck of a container.
  • FIGS 22, 23 and 24 show variants of the device according to the invention.
  • FIGS. 1, 2 and 3 The operating principle of the device according to the invention is illustrated in general by FIGS. 1, 2 and 3.
  • FIG. 3 illustrates what happens when the user wishes to remove part of the contents of the container from the latter.
  • the plug 10 has an axis of revolution XX, and has a generally cylindrical central portion 13 comprising a cylindrical central bore 11 provided in part with a thread 12, capable of cooperating with the thread of the neck of a container and an upper part 13bis generally perpendicular to the side wall 14 of the central part 13.
  • An opening 17 is provided in the upper part 13bis to allow the contents of the container to be evacuated.
  • the internal thread 12 generally extends from the end face 14a of the central part 13 in the direction of the opening 17, but not up to the end of the cylindrical bore 11, so that the internal wall of this bore 11 comprises a sliding surface 18, generally smooth, separating the end 19 of the tapping 12 from the upper part 13bis of the plug 10.
  • the tapping 12 projects relative to the sliding surface 18 so that the plug 10 cannot be easily detached from the rest of the device according to the invention. It is advantageous to arrange for the axial distance over which the sliding surface 18 extends to be close to that over which the tapping 12 extends: there is thus great latitude in adjusting the quantity of material leaving the container.
  • a second bore 20, preferably in the form of a truncated cone or sphere, may be formed between the opening 17 and the bore 11, so as to facilitate the exit of the contents of the container.
  • the isolation element 21 has an axis of revolution Y-Y and has a flare 22 which extends from fixing means, away from said axis of revolution .
  • This flare 22 is dimensioned so that its end 23 comes into contact with the sliding surface 18 over the entire circumference of the bore 11 of the plug 10 and exerts pressure on the sliding surface 18 of the plug 10, so to make a tight contact making it impossible for the contents of the container to pass between the end 23 and the sliding surface 18.
  • the isolation element 21, by constituting a tight barrier, isolates the contents of the container from the internal thread 12 and from the thread of the container neck.
  • the entire circumference of the bore 11 should not be understood as designating the entire surface of the wall of the bore 11 or the entire sliding surface 18, but as meaning any circumference of a disc obtained by intersection of a plane perpendicular to the axis of the bore 11 and having the diameter of the diameter of the bore 11, the said plane being able to be in any axial position situated between the end 19 of the thread and the upper part of the plug.
  • the diameter of the flare 22 at its end 23 is therefore at least equal to the diameter of the bore 11 of the plug at its internal sliding surface 18. When the plug 10 is unscrewed, the end 23 scrapes the sliding surface 18.
  • the end 23 may include a surface 23bis parallel to said axis of revolution Y-Y which is itself generally parallel to the axis X-X when the device is installed on a container.
  • the contact between the end 23 and the plug 10 is advantageously made on a small surface so that the pressure on the sliding surface 18 is fairly strong and the seal is satisfactory. This contact can therefore be linear or practically linear and as it takes place over the entire circumference of the bore 11 of the plug 10, it defines a loop.
  • the dimensions of the plug 10 and of the insulating element 21 are such that said contact is made over a distance along the axis YY which is very small, generally at least two times less than the distance over which extends l flaring 22 from the fixing means. Consequently, when using the device according to the invention, the screwing or unscrewing of the plug causes a displacement of the end 23 inside the bore 11, along the axis XX, similar to the displacement of a disc inside a cylinder.
  • the flaring 22 extends from the fixing means and preferably by moving away along the axis Y-Y of the latter. It can therefore define a hollow trunk of cone of small thickness compared to its axial length.
  • the ratio of the thickness of the truncated cone to its distance from the attachment means can be less than 1/3.
  • the flaring 22 is therefore connected, by its part opposite the end 23, to said fixing means.
  • These are intended to hold the isolation element in place, to make it difficult, if not impossible, any rotation on itself and any detachment of the container neck.
  • the fastening means are suitable for, and dimensioned to fit into the neck of the container and able to grip the neck of the container by exerting pressure on all or part of the surface of the bore of this pass.
  • These fixing means may extend over all or part of the length of the bore of the neck of the container. They are capable of allowing the contents of the container to pass towards the opening of the stopper, they can be constituted by a hollow cylinder 24.
  • the isolation element then has substantially the shape of a funnel.
  • the external diameter of the cylinder 24 is at least equal to that of the bore of the container neck and its length may be less than or greater than that of the bore of the container neck.
  • the fixing means consist of at least two lugs 26 and a ring 26bis.
  • the legs 26 which may, for example, be four in number, extend from the base 27 of the flare 28 in the direction of the axis of symmetry of this variant and away from the end 29 of the flare 28. They are generally parallel to said axis of symmetry, but when this variant of the isolation element is not mounted on the neck of a container, they can, while extending along the 'axis of symmetry, move away from each other so that one obtains a greater pressure on the bore of the container neck, once the device mounted.
  • the ring 26bis has a diameter at least equal to that of the bore of the neck of the container so as to exert pressure on this neck and thus prevent the passage of the contents of the container.
  • the end 29 has no surface parallel to the longitudinal axis of this variant 25 and therefore forms an angle with respect to the sliding surface of the plug. It follows that the contact between the plug and the end 29 takes place in a circle.
  • FIG. 10 illustrates a second variant 30 of the isolation element.
  • This variant 30 is provided with locking means intended to make it more difficult to extract it from the neck of the container.
  • These blocking means may be in the form of a hollow truncated cone 31 projecting from the end 32 of the fixing means 33 opposite the flare 34.
  • the distance between the base 35 of the flare 34 and l end 32, measured parallel to the axis of symmetry, must then be at least equal to the length of the bore of the neck of the container, so that this neck can be placed between the flare 34 and the means of blocking 31.
  • FIG. 11 shows a third variant 36 of the isolation element comprising a flaring 37 in the form of a disc extending from a cylinder 38.
  • Stop means 39 projecting with respect to the lateral external wall of the cylinder 38 are preferably provided at a certain axial distance from the flare 37 to limit the penetration of the cylinder 38 into the bore of the neck of the container and to allow greater unscrewing of the cap.
  • These stop means 39 can be constituted for example by bosses, projections or a flange.
  • Locking means 40 having the form of a ring 40 ( Figure 11) or a hollow truncated cone 41 ( Figure 12) may also be provided at the end of the cylinder 38 opposite the flare 37, so as to make it more difficult to tear it off.
  • Figures 13a and 13b each show one half of the same device according to the invention mounted on a container neck and comprising a fourth variant 42 of the isolation element.
  • the variant 42 includes attachment means 43 which are flexibly connected to the flare 44 and in such a way that they normally tend to move away from this flare 44.
  • these attachment means 43 are in contact with the sliding surface 46 of the plug 45. If the plug 45 is unscrewed, they slide on the surface 46 by exerting pressure on the latter, just as end 47 of the flare 44, until the plug 45 is sufficiently unscrewed so that they meet a recess 48 in the thread of the plug. They can then, as illustrated in FIG. 13b, sink into the hollow 48 because they precede the flare 44 (opposite the thread) and have greater mobility or flexibility than the end 47 of this flare 44.
  • This variant 42 of the isolation element is particularly useful when the thread of the plug 45 does not protrude relative to the sliding surface 46.
  • Figures 14 and 15 show an obstruction element 49 of the device according to the invention.
  • This obstruction element 49 generally has an elongated shape along an axis AA and preferably symmetrical with respect to this axis. he comprises at least one obturator or obturator part 50 and retention means.
  • the shutter 50 comprises an upper part 51, a central part 52 and a lower part 53.
  • the upper part 51 is intended to obstruct the opening of the stopper of the device to thus seal the container. It therefore generally has a shape complementary to that of the opening 17 and or, where appropriate, of the bore 20 of the plug 10 ( Figures 4 and 5).
  • the middle part 52 can take very different forms but it must obviously, like the lower parts 53 and upper 51, be dimensioned so that it can fit into the central bore 11 of the plug 10 ( Figure 4) and move there.
  • the lower part 53 is intended to come into abutment at least partially against the flaring of the isolation element.
  • it has a shape such that when the cap is fully screwed, the contact points between the lower part 53 and said flare define a loop.
  • This has the advantage of forming a second sealing barrier between the exterior of the container and its contents, the first sealing barrier being constituted by the obstruction of the opening of the stopper by the upper part 51.
  • the shutter 50 may have overall, for example, a spherical shape (Figures 14,15), ovoid, or the shape of a solid cylinder chamfered on its two opposite ends ( Figures 16,18).
  • the retention means extend from a location located on the lower part 53 and intended to be below said contact points between the flare and the lower part 53, and move away from the latter in a direction parallel to the axis AA or at a slight angle with this axis.
  • At least part of the retention means must be able to fit with a certain clearance inside the fixing means of the isolation element and move therein in a direction substantially parallel to the axis of symmetry A-A.
  • the retention means may comprise, at an end opposite to the lower part 53, stop means projecting relative to the means for fixing the isolation element and / or possibly relative to the bore of the neck of the container. .
  • the role of these stop means is to retain the obstruction element and to limit its mobility relative to the isolation element and the amplitude of its movement towards the opening of the plug.
  • the stop means also prevent the obstruction element from detaching from the container if the cap has been removed.
  • the length of the retention means measured along the axis AA is then greater than that of the means for fixing the isolation element. It can be greater (see Figures 1 to 3) or lower (see Figure 23) than that of the bore of the container neck. It is generally chosen to be less than the displacement length of the stopper (see FIG.
  • the retention means can be made up of several, for example, four, lugs 54 (FIGS. 14, 15) which can be arranged inside the means for fixing the isolation element and ending with stop means. in the form of pins 55.
  • the number of tabs 54 does not matter, but, if during the mounting of the device, the clearance between these tabs and the means for fixing the insulation element is small, it is necessary that there remain at least one space 56 ( Figure 15) between at least two of them so that the contents of the container can pass and go towards the opening of the stopper when desired. Indeed, as is most visible in Figure 3, if the legs 54 connected and made a loop and that said play was small, it would be very difficult to extract the contents of the container.
  • Figures 16 and 17 show a variant 57 of the blocking element whose retention means comprise a single rod 58 ending in a bar 59 making an angle, preferably 90 °, with the axis BB of longitudinal symmetry of this variant 57.
  • Figure 18 is illustrated a device according to the invention installed on the neck of a container and comprising variant 57 of Figures 16 and 17, a plug 60 having an opening 61 preceded by a frustoconical bore 62 the internal wall of which is parallel with a first chamfer 63 of the shutter 64, an insulating element having, as fixing means, a hollow cylinder 65 whose length is less than that of the bore of the neck of the container and d 'where a frustoconical flaring 66 starts able to cooperate with the second chamfer 67 of the shutter 64.
  • FIGS. 19 and 20 show a variant 70 of the obstructing element, the retention means of which comprise a rod 71 ending in four sides 72 substantially in the shape of a right triangle and arranged at 90 ° from one another. so as to form a cross when viewed from below ( Figure 20).
  • the shutter is generally in the form of a full cylinder. Its lower part 73 has a chamfer 74, its middle part 75 is purely cylindrical and its upper part 76 has the shape of a sphere trunk.
  • FIG. 21 represents a device according to the invention placed on the neck of a container.
  • This device is composed of variant 70 of FIGS. 19 and 20, of an insulating element similar to that of FIG. 12, but with, in addition, a chamfer 77 whose walls are parallel to the chamfer 74 of variant 70 and d 'a plug 78 whose bore 79 preceding the opening 80 has a shape complementary to that of the upper part 76 of the variant 70.
  • the sides 81 of the panels 72 are substantially parallel to the internal surface 75 of the locking means 41 of the isolation element of figure 12.
  • FIG. 22 shows a variant of a device according to the invention comprising, in addition to the plug 82, the isolation element 83 and the obstruction element 84, a ring 85 having, on its periphery, a thread 86 able to cooperate with the thread of the plug 82 and on its internal wall, a thread 87 capable of cooperating with the thread of the neck of the container.
  • This ring 85 preferably has a thickness, measured along its axis of revolution, at least equal to the length over which the thread of the neck of the container extends.
  • This variant offers the advantage of allowing the use of a plug 82 of large diameter and which may have an opening of large diameter. Large amounts of material can then be quickly removed from the container.
  • FIG. 23 shows another variant of a device according to the invention, in which the isolation element 88 is connected to a ring 89 similar to that of FIG. 22 by a shoulder 90 so as to form a structure in one piece.
  • the cylinder 91 of the isolation element 88 may extend only over part of the length of the bore of the threaded neck.
  • the space between the cylinder 91 and the shrinking 92 of the ring 89 is dimensioned to be able to receive the neck of the container.
  • the ring is preferably screwed until the threaded neck abuts against the shoulder 90. The neck is then pinched between the ring 89 and the cylinder 91, due to the pressure exerted by the latter.
  • the obstruction element 93 can be retained by lugs 94 of a sufficiently short length so that they do not open out of the neck.
  • the lugs 95 terminating the legs 94 do not protrude relative to the wall 96 of the neck bore but they protrude relative to the internal wall 97 of the cylinder 91 so as to retain the obstruction element 93 and to limit its movements towards the opening of the stopper and therefore towards the outside of the container.
  • FIG. 24 is illustrated yet another variant of the device according to the invention in which the isolation element 98 and the obstruction element 99 shown in section, form a structure in one piece.
  • the isolation element 98 may be similar, for example, to that shown in FIG. 10.
  • the obstruction element 99 is generally in this case devoid of retention means.
  • the obstruction element 99 may then only consist of a shutter such as, for example the shutter 50 visible in FIG. 14.
  • the attachment of the obstruction element 99 can be achieved by a connecting ring or weld 100 located approximately at the base of the flaring of the isolation element 98 and on its internal face, (that is to say facing the axis of symmetry)
  • the obstruction element 99 must be provided with at least one channel 101 passing through it.
  • This channel 101 starts from a point located under the ring 100, that is to say inside the cylinder 102 of the isolation element 98, and opens out above the ring 100, in the space located inside the stopper between the flare and the upper part of the obstruction element intended to obstruct the opening of the stopper.
  • the trajectory followed by the contents of the container during its use is symbolized by the arrows. In the absence of such a channel 101, the contents of the container could not leave the container due to the barrier formed by the ring 100.
  • the isolation element of the device according to the invention can be made of a fairly flexible material such as a metal or metal alloy.
  • the cap is generally made of plastic. It is usually made by molding, which allows it to have complex shapes.
  • the obstruction element may be made of metal or a metal alloy.
  • the shutter and the retention means can be made together or united by welding.
  • the device according to the invention is therefore easy to produce and at a low cost price.
  • H can easily be placed on a threaded neck as follows: a) the fastening means of the isolation element are slid or forced into the bore of the neck of the container, until the flare comes into abutment against the neck; the latter is then, if necessary, sandwiched between the flare and the locking means; b) the stopping means followed by the means for retaining the obstruction element are forcibly inserted between the means for fixing the isolation element, until a click occurs; thanks to the play existing between the fixing means and the retention means, the obstruction element can then move freely along its axis of symmetry over a limited distance; c) the plug is put in place by screwing it onto the end of the flare or by forcibly introducing this end into the central bore of the plug and pressing it in until the thread of the plug comes into engagement with neck thread; d) the container can then be closed by screwing the stopper fully down, that is to say normally until the upper part of the shutter abuts against the upper part of the stopper.
  • the various elements of the device have not

Abstract

Device for closing a threaded neck container such as a tube of paint, gouache, tooth paste or ointment. The device is designed to prevent the container contents from drying out and from being exposed to the air, and the cap from becoming stuck. The device of the invention comprises a cap (1, 10, 45, 60, 78, 82) with a central portion (13) including a bore (11) having a female thread (12) for cooperating with the male thread of the container neck (2), and an upper portion (13b) including an aperture (17, 61, 80) therein, the end (19) of said female thread (12) being separated from said upper portion (13b) by a sliding contact surface (18, 46) and an element (3, 49, 57, 70, 84, 93, 99) for obstructing said opening (17, 61, 80). The invention is also characterized by a separating element (4, 21, 25, 30, 36, 42) having securing means (24, 26, 33, 38, 65, 91, 102) which are inserted into the neck (2) of the container and a flared portion (22, 28, 34, 37, 44, 66) whose end (6, 23, 29, 47) is sized to come into contact with the sliding contact surface (18, 46) of said cap (1, 10, 45, 60, 78, 82) over the entire circumference of said bore (11) so as to provide a sealed barrier preventing the passage of the container contents.

Description

DISPOSITIF DE FERMETURE D'UN RECIPIENT A COL FILETE DEVICE FOR CLOSING A CONTAINER WITH A THREADED NECK
L'invention concerne un dispositif de fermeture d'un récipient à col fileté tel qu'un tube de peinture, de gouache, de dentifrice ou de pommade. Ce dispositif est destiné notamment à éviter le séchage du contenu du récipient, les prises d'air et le blocage du bouchon.The invention relates to a device for closing a container with a threaded neck such as a tube of paint, gouache, toothpaste or ointment. This device is intended in particular to prevent drying of the contents of the container, air intakes and blockage of the cap.
ETAT DE LA TECHNIQUESTATE OF THE ART
Le brevet suisse n° 323 486 a pour objet un dispositif de fermeture d'un récipient à col tel qu'un tube, comportant une pièce d'emboutissage, un capuchon, monté par vissage sur le col et deux butées d'arrêt coopérantes ménagées, respectivement, sur le col du récipient et sur le capuchon, pour empêcher celui-ci de se désolidariser du récipient.Swiss Patent No. 323,486 relates to a device for closing a container with a neck such as a tube, comprising a stamping part, a cap, mounted by screwing on the neck and two cooperating stop stops provided , respectively, on the container neck and on the cap, to prevent the latter from detaching from the container.
Ce dispositif a pour inconvénient majeur de nécessiter la présence d'une butée d'arrêt sur le col du récipient. Il impose donc que le col du récipient soit transformé de façon à comporter cette butée d'arrêt. Une telle transformation rend plus complexe la production des tubes et elle entraîne une adaptation des machines permettant de fabriquer ces tubes. Tout ceci se traduit par un coût de revient élevé des tubes munis d'un tel dispositif de fermeture.This device has the major drawback of requiring the presence of a stopper on the neck of the container. It therefore requires that the neck of the container be transformed so as to include this stop. Such a transformation makes the production of the tubes more complex and it entails an adaptation of the machines making it possible to manufacture these tubes. All this translates into a high cost price of the tubes provided with such a closure device.
EXPOSE SOMMAIRE DE L'INVENTIONSUMMARY OF THE INVENTION
L'inventeur est parvenu à mettre au point un dispositif remédiant aux inconvénients précités. Ce dispositif comprend au moins :The inventor has succeeded in developing a device which remedies the aforementioned drawbacks. This device includes at least:
- un bouchon ayant une partie centrale comportant un alésage pourvu d'un taraudage apte à coopérer avec le filetage du col du récipient, et une partie supérieure comportant une ouverture, la fin dudit taraudage étant séparée de ladite partie supérieure par une surface de glissement,a plug having a central part comprising a bore provided with a tapping capable of cooperating with the threading of the neck of the container, and an upper part comprising an opening, the end of said tapping being separated from said upper part by a sliding surface,
- un élément d'obstruction de ladite ouverture, et se distingue en ce qu'il comprend en outre : - un élément d'isolement présentant des moyens de fixation aptes à s'insérer dans le col du récipient et un évasement dont l'extrémité est dimensionnée pour venir en contact avec ladite surface de glissement dudit bouchon sur toute la circonférence dudit alésage de façon à réaliser une barrière étanche rendant impossible le passage du contenu du récipient.- an element for obstructing said opening, and is distinguished in that it further comprises: - an isolation element having fixing means capable of being inserted in the neck of the container and a flare whose end is sized to come into contact with said sliding surface of said plug over the entire circumference of said bore so as to produce a tight barrier making it impossible for the contents of the container to pass.
Un tel dispositif offre l'avantage de pouvoir être monté directement sur le col fileté d'un récipient, sans que ce col ait besoin d'être adapté. De plus, il reste démontable. Ainsi, une fois le récipient vide, le dispositif peut être récupéré et installé sur un autre récipient.Such a device offers the advantage of being able to be mounted directly on the threaded neck of a container, without this neck needing to be adapted. In addition, it remains removable. Thus, once the container is empty, the device can be recovered and installed on another container.
D'autres avantages du dispositif selon l'invention ressortiront à la lecture de la suite de la description à laquelle sont annexées à titre illustratif et non limitatif, les figures 1 à 24.Other advantages of the device according to the invention will emerge on reading the following description which is annexed by way of nonlimiting illustration, FIGS. 1 to 24.
DESCRIPTION SOMMAIRE DES FIGURESSUMMARY DESCRIPTION OF THE FIGURES
La figure 1 représente, schématiquement et en coupe, un dispositif selon l'invention monté sur un col fileté, lorsque le bouchon est entièrement vissé.Figure 1 shows, schematically and in section, a device according to the invention mounted on a threaded neck, when the cap is fully screwed.
La figure 2 représente, schématiquement et en coupe, le dispositif de la figure 1, lorsque le bouchon est partiellement dévissé.Figure 2 shows, schematically and in section, the device of Figure 1, when the cap is partially unscrewed.
La figure 3 représente, schématiquement et en coupe, le dispositif des figures 1 et 2, lorsque l'utilisateur appuyé sur le récipient, les flèches symbolisant le déplacement de la matière contenue dans le récipient.Figure 3 shows, schematically and in section, the device of Figures 1 and 2, when the user pressed on the container, the arrows symbolizing the movement of the material contained in the container.
Les figures 4 et 5 représentent, schématiquement et respectivement, en vue de face en coupe et en vue de dessous, un bouchon du dispositif selon l'invention.Figures 4 and 5 show, schematically and respectively, in front view in section and in bottom view, a plug of the device according to the invention.
Les figures 6 et 7 représentent, schématiquement et respectivement, en vue de face en coupe et en vue de dessous, un élément d'isolement du dispositif selon l'invention.Figures 6 and 7 show, schematically and respectively, in front view in section and in bottom view, an insulation element of the device according to the invention.
Les figures 8 et 9 représentent, schématiquement et respectivement, en vue de face en coupe et en vue de dessous, une première variante de l'élément d'isolement du dispositif selon l'invention.Figures 8 and 9 show, schematically and respectively, in front view in section and in bottom view, a first variant of the isolation element of the device according to the invention.
La figure 10 représente, schématiquement, en vue de face en coupe, une deuxième variante de l'élément d'isolement du dispositif selon l'invention.FIG. 10 schematically represents, in front view in section, a second variant of the isolation element of the device according to the invention.
La figure 11 représente, schématiquement, en vue de face en coupe, une troisième variante de l'élément d'isolement du dispositif selon l'invention.FIG. 11 schematically represents, in front view in section, a third variant of the isolation element of the device according to the invention.
La figure 12 représente schématiquement et en coupe, un dispositif selon l'invention comprenant un élément d'isolement analogue à celui de la figure 11 et monté sur le col fileté d'un récipient.Figure 12 shows schematically and in section, a device according to the invention comprising an isolation element similar to that of Figure 11 and mounted on the threaded neck of a container.
Les figures 13a et 13b représentent schématiquement, un dispositif selon l'invention comportant une quatrième variante de l'élément d'isolement, respectivement, lorsque le bouchon est entièrement vissé et lorsque le bouchon est totalement dévissé.FIGS. 13a and 13b schematically represent a device according to the invention comprising a fourth variant of the isolation element, respectively, when the cap is fully screwed and when the cap is fully unscrewed.
Les figures 14 et 15 représentent, schématiquement et respectivement, en vue de face en coupe et en vue de dessous, un l'élément d'obstruction du dispositif selon l'invention.Figures 14 and 15 show, schematically and respectively, in front view in section and in bottom view, an obstruction element of the device according to the invention.
Les figures 16 et 17 représentent, schématiquement et respectivement, en vue de face en coupe et en vue de dessous, une première variante de l'élément d'obstruction.Figures 16 and 17 show, schematically and respectively, in front view in section and in bottom view, a first variant of the obstruction element.
La figure 18 représente schématiquement et en coupe, un dispositif selon l'invention comprenant la variante de l'élément d'obstruction des figures 16 et 17, et monté sur le col fileté d'un récipient.Figure 18 shows schematically and in section, a device according to the invention comprising the variant of the blocking element of Figures 16 and 17, and mounted on the threaded neck of a container.
Les figures 19 et 20 représentent, schématiquement et respectivement, en vue de face en coupe et en vue de dessous, une deuxième variante de l'élément d'obstruction du dispositif selon l'invention. La figure 21 représente schématiquement et en coupe, un dispositif selon l'invention comprenant la variante de l'élément d'obstruction des figures 19 et 20, et monté sur le col fileté d'un récipient.Figures 19 and 20 show, schematically and respectively, in front view in section and in bottom view, a second variant of the obstruction element of the device according to the invention. Figure 21 shows schematically and in section, a device according to the invention comprising the variant of the blocking element of Figures 19 and 20, and mounted on the threaded neck of a container.
Les figures 22, 23 et 24 représentent des variantes du dispositif selon l'invention.Figures 22, 23 and 24 show variants of the device according to the invention.
EXPOSE DETAILLE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION
Le principe de fonctionnement du dispositif selon l'invention est illustré de manière générale par les figures 1, 2 et 3.The operating principle of the device according to the invention is illustrated in general by FIGS. 1, 2 and 3.
Sur la figure 1, le récipient est fermé, c'est-à-dire que le bouchon 1 est entièrement vissé sur le col 2. L'élément d'obstruction 3 obstrue alors l'ouverture du bouchon, empêche le contenu du récipient de s'échapper hors de celui-ci et est plaqué contre l'élément d'isolement 4. Sur la figure 2, le bouchon a été partiellement dévissé. Il s'est créé un espaceIn Figure 1, the container is closed, that is to say that the cap 1 is fully screwed onto the neck 2. The obstruction element 3 then obstructs the opening of the cap, prevents the contents of the container from escape from it and is pressed against the isolation element 4. In Figure 2, the cap has been partially unscrewed. A space has been created
5 entre l'élément d'obstruction 3 et l'ouverture du bouchon. L'élément d'obstruction 3 peut alors effectuer un mouvement de translation limité, désigné par la flèche F, selon l'axe du col 2, ainsi qu'éventuellement une rotation autour de cet axe. En revanche l'élément d'isolement 4 ne se déplace pas. H présente une extrémité 6 qui est en contact étanche avec la surface interne 7 du bouchon 1 de façon à empêcher le contenu du récipient de s'infiltrer entre l'extrémité 6 et la surface interne 7 et à atteindre le taraudage 8 du bouchon ou le filetage 9 du col 2. La figure 3 illustre ce qui se passe lorsque l'utilisateur souhaite faire sortir une partie du contenu du récipient hors de ce dernier. L'utilisateur exerce alors généralement une pression sur le corps du récipient, ce qui provoque une poussée du contenu vers le col 2 à travers l'élément d'isolement 4 et un déplacement de l'élément d'obstruction 3 vers l'ouverture du bouchon 1. Les flèches symbolisent le mouvement du contenu du récipient autour de l'élément d'obstruction 3 et vers l'ouverture du bouchon 1.5 between the blocking element 3 and the opening of the plug. The obstruction element 3 can then perform a limited translational movement, designated by the arrow F, along the axis of the neck 2, as well as possibly a rotation about this axis. On the other hand, the isolation element 4 does not move. H has an end 6 which is in sealed contact with the internal surface 7 of the plug 1 so as to prevent the contents of the container from infiltrating between the end 6 and the internal surface 7 and reaching the internal thread 8 of the plug or the thread 9 of neck 2. FIG. 3 illustrates what happens when the user wishes to remove part of the contents of the container from the latter. The user then generally exerts pressure on the container body, which causes the contents to push towards the neck 2 through the isolation element 4 and a displacement of the obstruction element 3 towards the opening of the cap 1. The arrows symbolize the movement of the contents of the container around the obstruction element 3 and towards the opening of the cap 1.
Les constituants du dispositif selon l'invention et leurs variantes vont maintenant être décrits plus en détail.The components of the device according to the invention and their variants will now be described in more detail.
En se référant en particulier aux figure 4 et 5, on voit que le bouchon 10 présente un axe de révolution X-X, et comporte une partie centrale 13 généralement cylindrique comprenant un alésage central cylindrique 11 pourvu en partie d'un taraudage 12, apte à coopérer avec le filetage du col d'un récipient et une partie supérieure 13bis globalement perpendiculaire à la paroi latérale 14 de la partie centrale 13. Une ouverture 17 est prévue dans la partie supérieure 13bis pour permettre l'évacuation du contenu du récipient. Le taraudage 12 s'étend en général depuis la face d'extrémité 14bis de la partie centrale 13 en direction de l'ouverture 17, mais pas jusqu'à l'extrémité de l'alésage cylindrique 11, de sorte que la paroi interne de cet alésage 11 comprenne une surface de glissement 18, généralement lisse, séparant la fin 19 du taraudage 12 de la partie supérieure 13bis du bouchon 10. De préférence, la taraudage 12 fait saillie par rapport à la surface de glissement 18 de façon à ce que le bouchon 10 ne puisse pas être facilement désolidarisé du reste du dispositif selon l'invention. II est avantageux de s'arranger pour que la distance axiale sur laquelle s'étend la surface de glissement 18 soit voisine de celle sur laquelle s'étend le taraudage 12 : on a ainsi une grande latitude de réglage de la quantité de matière sortant du récipient.With particular reference to FIGS. 4 and 5, it can be seen that the plug 10 has an axis of revolution XX, and has a generally cylindrical central portion 13 comprising a cylindrical central bore 11 provided in part with a thread 12, capable of cooperating with the thread of the neck of a container and an upper part 13bis generally perpendicular to the side wall 14 of the central part 13. An opening 17 is provided in the upper part 13bis to allow the contents of the container to be evacuated. The internal thread 12 generally extends from the end face 14a of the central part 13 in the direction of the opening 17, but not up to the end of the cylindrical bore 11, so that the internal wall of this bore 11 comprises a sliding surface 18, generally smooth, separating the end 19 of the tapping 12 from the upper part 13bis of the plug 10. Preferably, the tapping 12 projects relative to the sliding surface 18 so that the plug 10 cannot be easily detached from the rest of the device according to the invention. It is advantageous to arrange for the axial distance over which the sliding surface 18 extends to be close to that over which the tapping 12 extends: there is thus great latitude in adjusting the quantity of material leaving the container.
Un second alésage 20, de préférence en forme de tronc de cône ou de sphère, peut être ménagé entre l'ouverture 17 et l'alésage 11, de façon à faciliter la sortie du contenu du récipient.A second bore 20, preferably in the form of a truncated cone or sphere, may be formed between the opening 17 and the bore 11, so as to facilitate the exit of the contents of the container.
En se reportant aux figures 6 et 7, on remarque que l'élément d'isolement 21 présente un axe de révolution Y- Y et comporte un évasement 22 qui s'étend depuis des moyens de fixation, en s'éloignant dudit axe de révolution. Cet évasement 22 est dimensionné de manière à ce que son extrémité 23 vienne en contact avec la surface de glissement 18 sur toute la circonférence de l'alésage 11 du bouchon 10 et exerce une pression sur la surface de glissement 18 du bouchon 10, de façon à réaliser un contact étanche rendant impossible le passage du contenu du récipient entre l'extrémité 23 et la surface de glissement 18. Ainsi, l'élément d'isolement 21, en constituant une barrière étanche, isole le contenu du récipient du taraudage 12 et du filetage du col du récipient. L'expression "toute la circonférence de l'alésage 11" telle qu'utilisée dans la présente description ne doit pas être entendue comme désignant toute la surface de la paroi de l'alésage 11 ou toute la surface de glissement 18, mais comme signifiant toute circonférence d'un disque obtenu par intersection d'un plan perpendiculaire à l'axe de l'alésage 11 et ayant pour diamètre le diamètre de l'alésage 11, ledit plan pouvant se trouver à n'importe quelle position axiale située entre la fin 19 du taraudage et la partie supérieure du bouchon.Referring to Figures 6 and 7, we note that the isolation element 21 has an axis of revolution Y-Y and has a flare 22 which extends from fixing means, away from said axis of revolution . This flare 22 is dimensioned so that its end 23 comes into contact with the sliding surface 18 over the entire circumference of the bore 11 of the plug 10 and exerts pressure on the sliding surface 18 of the plug 10, so to make a tight contact making it impossible for the contents of the container to pass between the end 23 and the sliding surface 18. Thus, the isolation element 21, by constituting a tight barrier, isolates the contents of the container from the internal thread 12 and from the thread of the container neck. The expression "the entire circumference of the bore 11" as used in the present description should not be understood as designating the entire surface of the wall of the bore 11 or the entire sliding surface 18, but as meaning any circumference of a disc obtained by intersection of a plane perpendicular to the axis of the bore 11 and having the diameter of the diameter of the bore 11, the said plane being able to be in any axial position situated between the end 19 of the thread and the upper part of the plug.
Le diamètre de l'évasement 22 au niveau de son extrémité 23 est donc au moins égal au diamètre de l'alésage 11 du bouchon au niveau de sa surface interne de glissement 18. Lors du dévissage du bouchon 10, l'extrémité 23 racle la surface de glissement 18.The diameter of the flare 22 at its end 23 is therefore at least equal to the diameter of the bore 11 of the plug at its internal sliding surface 18. When the plug 10 is unscrewed, the end 23 scrapes the sliding surface 18.
On évite ainsi l'encrassement à la fois du filetage du col du récipient et du taraudage 12 du bouchon 10 et des fuites du contenu du récipient. L'extrémité 23 peut comprendre une surface 23bis parallèle audit axe de révolution Y-Y qui est lui- même généralement parallèle à l'axe X-X lorsque le dispositif est installé sur un récipient. Le contact entre l'extrémité 23 et le bouchon 10 se fait avantageusement sur une surface peu importante pour que la pression sur la surface de glissement 18 soit assez forte et l'étanchéité satisfaisante. Ce contact peut donc être linéaire ou pratiquement linéaire et comme il se fait sur toute la circonférence de l'alésage 11 du bouchon 10, il définit une boucle. En général, les dimensions du bouchon 10 et de l'élément d'isolement 21 sont telles que ledit contact se fait sur une distance suivant l'axe Y-Y très faible, généralement au moins deux fois inférieure à la distance sur laquelle s'étend l'évasement 22 à partir des moyens de fixation. Par conséquent, lors de l'utilisation du dispositif selon l'invention, le vissage ou le dévissage du bouchon provoque un déplacement de l'extrémité 23 l'intérieur de l'alésage 11, le long de l'axe X-X, analogue au déplacement d'un disque à l'intérieur d'un cylindre.This prevents contamination of both the thread of the container neck and the internal thread 12 of the plug 10 and leakage of the contents of the container. The end 23 may include a surface 23bis parallel to said axis of revolution Y-Y which is itself generally parallel to the axis X-X when the device is installed on a container. The contact between the end 23 and the plug 10 is advantageously made on a small surface so that the pressure on the sliding surface 18 is fairly strong and the seal is satisfactory. This contact can therefore be linear or practically linear and as it takes place over the entire circumference of the bore 11 of the plug 10, it defines a loop. In general, the dimensions of the plug 10 and of the insulating element 21 are such that said contact is made over a distance along the axis YY which is very small, generally at least two times less than the distance over which extends l flaring 22 from the fixing means. Consequently, when using the device according to the invention, the screwing or unscrewing of the plug causes a displacement of the end 23 inside the bore 11, along the axis XX, similar to the displacement of a disc inside a cylinder.
L'évasement 22 s'étend à partir des moyens de fixation et de préférence en s'éloignant suivant l'axe Y-Y de ces derniers. Il peut donc définir un tronc de cône creux de faible épaisseur par rapport à sa longueur axiale. Le rapport entre l'épaisseur du tronc de cône et sa distance d'extension à partir des moyens de fixation peut être inférieur à 1/3.The flaring 22 extends from the fixing means and preferably by moving away along the axis Y-Y of the latter. It can therefore define a hollow trunk of cone of small thickness compared to its axial length. The ratio of the thickness of the truncated cone to its distance from the attachment means can be less than 1/3.
L'évasement 22 est donc relié, par sa partie opposée à l'extrémité 23, auxdits moyens de fixation. Ces derniers sont destinés à maintenir l'élément d'isolement en place, à lui rendre difficile, voire impossible, toute rotation sur lui-même et toute désolidarisation du col du récipient. Dans ce but, les moyens de fixation sont aptes à, et dimensionnés pour, s'insérer dans le col du récipient et aptes à s'agripper au col du récipient en exerçant une pression sur tout ou partie de la surface de l'alésage de ce col. Ces moyens de fixation peuvent s'étendre sur tout ou partie de la longueur de l'alésage du col du récipient. Ils sont aptes à laisser passer le contenu du récipient vers l'ouverture du bouchon, us peuvent être constitués par un cylindre creux 24. L'élément d'isolement a alors sensiblement la forme d'un entonnoir. Le diamètre externe du cylindre 24 est au moins égal à celui de l'alésage du col du récipient et sa longueur peut être inférieure ou supérieure à celle de l'alésage du col du récipient. Le cylindre 24, grâce à la pression qu'il exerce sur le col du récipient, constitue une barrière étanche entre ledit cylindre 24 et ledit col et rend donc impossible, au contenu du récipient, l'accès aux filetage 8 et taraudage 9 (figure 2).The flaring 22 is therefore connected, by its part opposite the end 23, to said fixing means. These are intended to hold the isolation element in place, to make it difficult, if not impossible, any rotation on itself and any detachment of the container neck. For this purpose, the fastening means are suitable for, and dimensioned to fit into the neck of the container and able to grip the neck of the container by exerting pressure on all or part of the surface of the bore of this pass. These fixing means may extend over all or part of the length of the bore of the neck of the container. They are capable of allowing the contents of the container to pass towards the opening of the stopper, they can be constituted by a hollow cylinder 24. The isolation element then has substantially the shape of a funnel. The external diameter of the cylinder 24 is at least equal to that of the bore of the container neck and its length may be less than or greater than that of the bore of the container neck. The cylinder 24, thanks to the pressure it exerts on the neck of the container, constitutes a tight barrier between said cylinder 24 and said neck and therefore makes it impossible, to the contents of the container, to access the thread 8 and thread 9 (FIG. 2).
Selon une première variante 25 de l'élément d'isolement visible sur les figures 8 et 9, les moyens de fixation sont constitués par au moins deux pattes 26 et un anneau 26bis. Les pattes 26 qui peuvent, par exemple, être au nombre de quatre, s'étendent depuis la base 27 de l'évasement 28 dans la direction de l'axe de symétrie de cette variante et en s'éloignant de l'extrémité 29 de l'évasement 28. Elles sont généralement parallèles audit axe de symétrie, mais lorsque cette variante de l'élément d'isolement n'est pas montée sur le col d'un récipient, elles peuvent, tout en s'étendant le long de l'axe de symétrie, s'écarter les unes des autres de manière à ce que l'on obtienne une pression plus importante sur l'alésage du col du récipient, une fois le dispositif monté. L'anneau 26bis a un diamètre au moins égal à celui de l'alésage du col du récipient de façon à exercer une pression sur ce col et à empêcher ainsi le passage du contenu du récipient. L'extrémité 29 est dépourvue de surface parallèle à l'axe longitudinal de cette variante 25 et fait donc un angle par rapport à la surface de glissement du bouchon. Il s'ensuit que le contact entre le bouchon et l'extrémité 29 se fait suivant un cercle.According to a first variant 25 of the isolation element visible in FIGS. 8 and 9, the fixing means consist of at least two lugs 26 and a ring 26bis. The legs 26 which may, for example, be four in number, extend from the base 27 of the flare 28 in the direction of the axis of symmetry of this variant and away from the end 29 of the flare 28. They are generally parallel to said axis of symmetry, but when this variant of the isolation element is not mounted on the neck of a container, they can, while extending along the 'axis of symmetry, move away from each other so that one obtains a greater pressure on the bore of the container neck, once the device mounted. The ring 26bis has a diameter at least equal to that of the bore of the neck of the container so as to exert pressure on this neck and thus prevent the passage of the contents of the container. The end 29 has no surface parallel to the longitudinal axis of this variant 25 and therefore forms an angle with respect to the sliding surface of the plug. It follows that the contact between the plug and the end 29 takes place in a circle.
La figure 10 illustre une seconde variante 30 de l'élément d'isolement. Cette variante 30 est pourvue de moyens de blocage destinés à rendre plus diffile son extraction du col du récipient. Ces moyens de blocage peuvent se présenter sous la forme d'un tronc de cône creux 31 faisant saillie depuis l'extrémité 32 des moyens de fixation 33 opposée à l'évasement 34. La distance entre la base 35 de l'évasement 34 et l'extrémité 32, mesurée parallèlement à l'axe de symétrie, doit alors être au moins égale à la longueur de l'alésage du col du récipient, de façon à ce que ce col puisse se disposer entre l'évasement 34 et les moyens de blocage 31.FIG. 10 illustrates a second variant 30 of the isolation element. This variant 30 is provided with locking means intended to make it more difficult to extract it from the neck of the container. These blocking means may be in the form of a hollow truncated cone 31 projecting from the end 32 of the fixing means 33 opposite the flare 34. The distance between the base 35 of the flare 34 and l end 32, measured parallel to the axis of symmetry, must then be at least equal to the length of the bore of the neck of the container, so that this neck can be placed between the flare 34 and the means of blocking 31.
La figure 11 représente une troisième variante 36 de l'élément d'isolement comportant un évasement 37 en forme de disque s'étendant depuis un cylindre 38. Des moyens d'arrêt 39 faisant saillie par rapport à la paroi extérieure latérale du cylindre 38 sont de préférence prévus à une certaine distance axiale de l'évasement 37 pour limiter la pénétration du cylindre 38 dans l'alésage du col du récipient et pour permettre un dévissage plus important du bouchon. Ces moyens d'arrêt 39 peuvent être constitués par exemple par des bossages, des saillies ou une collerette. Ainsi, quand le dispositif est monté sur un récipient, comme illustré par la figure 12, l'enfoncement du cylindre 38 dans le col du récipient est limité par les moyens d'arrêt 39. Des moyens de blocage 40 ayant la forme d'une bague 40 (figure 11) ou d'un tronc de cône creux 41 (figure 12) peuvent également être prévus à extrémité du cylindre 38 opposée à l'évasement 37, de façon à rendre plus diffile son arrachement.FIG. 11 shows a third variant 36 of the isolation element comprising a flaring 37 in the form of a disc extending from a cylinder 38. Stop means 39 projecting with respect to the lateral external wall of the cylinder 38 are preferably provided at a certain axial distance from the flare 37 to limit the penetration of the cylinder 38 into the bore of the neck of the container and to allow greater unscrewing of the cap. These stop means 39 can be constituted for example by bosses, projections or a flange. Thus, when the device is mounted on a container, as illustrated in FIG. 12, the insertion of the cylinder 38 into the neck of the container is limited by the stop means 39. Locking means 40 having the form of a ring 40 (Figure 11) or a hollow truncated cone 41 (Figure 12) may also be provided at the end of the cylinder 38 opposite the flare 37, so as to make it more difficult to tear it off.
Les figures 13a et 13b représentent chacune une moitié d'un même dispositif selon l'invention monté sur un col de récipient et comprenant une quatrième variante 42 de l'élément d'isolement.Figures 13a and 13b each show one half of the same device according to the invention mounted on a container neck and comprising a fourth variant 42 of the isolation element.
On voit que la variante 42 comporte des moyens de rattachement 43 qui sont reliés de manière souple à l'évasement 44 et de telle façon qu'ils aient normalement tendance à s'éloigner de cet évasement 44. Lorsque le bouchon 45 est entièrement vissé, comme illustré sur la figure 13a, ces moyens de rattachement 43 sont en contact avec la surface de glissement 46 du bouchon 45. Si l'on dévisse le bouchon 45, ils glissent sur la surface 46 en exerçant une pression sur cette dernière, tout comme extrémité 47 de l'évasement 44, jusqu'à ce le bouchon 45 soit suffisamment dévissé pour qu'ils recontrent un creux 48 du taraudage du bouchon. Ils peuvent ensuite, comme illustré par la figure 13b, s'enfoncer dans le creux 48 car ils précèdent l'évasement 44 (vis-à-vis du taraudage) et présentent une plus grande mobilité ou souplesse que l'extrémité 47 de cet évasement 44. L'enfoncement des moyens de rattachement 43 dans un creux 48 freine alors le mouvement de dévissage et évite que le bouchon soit involontairement dévissé davantage. L'utilisateur sent alors qu'il est plus difficile de tourner le bouchon. S'il veut continuer à dévisser le bouchon, en vue notamment de l'enlever, il doit alors appliquer volontairement plus de force. Ainsi une désolidarisation accidentelle du bouchon 45 par rapport au récipient est rendue quasiment impossible.It can be seen that the variant 42 includes attachment means 43 which are flexibly connected to the flare 44 and in such a way that they normally tend to move away from this flare 44. When the plug 45 is fully screwed, as illustrated in FIG. 13a, these attachment means 43 are in contact with the sliding surface 46 of the plug 45. If the plug 45 is unscrewed, they slide on the surface 46 by exerting pressure on the latter, just as end 47 of the flare 44, until the plug 45 is sufficiently unscrewed so that they meet a recess 48 in the thread of the plug. They can then, as illustrated in FIG. 13b, sink into the hollow 48 because they precede the flare 44 (opposite the thread) and have greater mobility or flexibility than the end 47 of this flare 44. The insertion of the attachment means 43 into a recess 48 then slows the unscrewing movement and prevents the plug from being unintentionally unscrewed further. The user then feels that it is more difficult to turn the cap. If he wants to continue unscrewing the cap, in particular with a view to removing it, he must then voluntarily apply more force. Thus, accidental detachment of the plug 45 from the container is made almost impossible.
Cette variante 42 de l'élément d'isolement est particulièrement utile lorsque le taraudage du bouchon 45 ne fait pas saillie par rapport à la surface de glissement 46.This variant 42 of the isolation element is particularly useful when the thread of the plug 45 does not protrude relative to the sliding surface 46.
Les figures 14 et 15 représentent un élément d'obstruction 49 du dispositif selon l'invention. Cet élément d'obstruction 49 présente généralement une forme allongée le long d'un axe A-A et de préférence symétrique par rapport à cet axe. Il comprend au moins une partie obturatrice ou obturateur 50 et des moyens de rétention.Figures 14 and 15 show an obstruction element 49 of the device according to the invention. This obstruction element 49 generally has an elongated shape along an axis AA and preferably symmetrical with respect to this axis. he comprises at least one obturator or obturator part 50 and retention means.
L'obturateur 50 comporte une partie supérieure 51, une partie médiane 52 et une partie inférieure 53. La partie supérieure 51 est destinée à obstruer l'ouverture du bouchon du dispositif pour fermer ainsi de manière étanche le récipient. Elle présente donc généralement une forme complémentaire de celle de l'ouverture 17 et ou, le cas échéant, de l'alésage 20 du bouchon 10 (figures 4 et 5).The shutter 50 comprises an upper part 51, a central part 52 and a lower part 53. The upper part 51 is intended to obstruct the opening of the stopper of the device to thus seal the container. It therefore generally has a shape complementary to that of the opening 17 and or, where appropriate, of the bore 20 of the plug 10 (Figures 4 and 5).
La partie médiane 52 peut revêtir des formes très diverses mais elle doit bien évidemment, comme les parties inférieure 53 et supérieure 51, être dimensionnée de telle sorte qu'elle puisse s'insérer dans l'alésage central 11 du bouchon 10 (figure 4) et s'y mouvoir.The middle part 52 can take very different forms but it must obviously, like the lower parts 53 and upper 51, be dimensioned so that it can fit into the central bore 11 of the plug 10 (Figure 4) and move there.
La partie inférieure 53 est destinée à venir en butée au moins partiellement contre l'évasement de l'élément d'isolement. De préférence, elle présente une forme telle que lorsque le bouchon est entièrement vissé, les points de contact entre la partie inférieure 53 et ledit évasement définissent une boucle. Ceci a pour avantage de former une seconde barrière d'étanchéité entre l'extérieur du récipient et son contenu, la première barrière d'étanchéité étant constituée par l'obstruction de l'ouverture du bouchon par la partie supérieure 51.The lower part 53 is intended to come into abutment at least partially against the flaring of the isolation element. Preferably, it has a shape such that when the cap is fully screwed, the contact points between the lower part 53 and said flare define a loop. This has the advantage of forming a second sealing barrier between the exterior of the container and its contents, the first sealing barrier being constituted by the obstruction of the opening of the stopper by the upper part 51.
L'obturateur 50 peut avoir globalement, par exemple, une forme sphérique (figures 14,15), ovoïde, ou la forme d'un cylindre plein chanfreiné sur ses deux extrémités opposées (figures 16,18).The shutter 50 may have overall, for example, a spherical shape (Figures 14,15), ovoid, or the shape of a solid cylinder chamfered on its two opposite ends (Figures 16,18).
Les moyens de rétention s'étendent depuis un endroit situé sur la partie inférieure 53 et prévu pour se trouver en-dessous desdits points de contact entre l'évasement et la partie inférieure 53, et s'éloignent de cette dernière dans une direction parallèle à l'axe A-A ou faisant un angle faible avec cet axe.The retention means extend from a location located on the lower part 53 and intended to be below said contact points between the flare and the lower part 53, and move away from the latter in a direction parallel to the axis AA or at a slight angle with this axis.
Une partie au moins des moyens de rétention doit pouvoir s'insérer avec un certain jeu à l'intérieur des moyens de fixation de l'élément d'isolement et s'y déplacer selon une direction sensiblement parallèle à l'axe de symétrie A-A.At least part of the retention means must be able to fit with a certain clearance inside the fixing means of the isolation element and move therein in a direction substantially parallel to the axis of symmetry A-A.
Les moyens de rétention peuvent comprendre à une extrémité opposée à la partie inférieure 53, des moyens d'arrêt faisant saillie par rapport au moyens de fixation de l'élément d'isolement et/ou éventuellement par rapport à l'alésage du col du récipient. Le rôle de ces moyens d'arrêt est de retenir l'élément d'obstruction et de limiter sa mobilité par rapport à l'élément d'isolement et l'amplitude de son déplacement vers l'ouverture du bouchon. Les moyens d'arrêt empêchent aussi l'élément d'obstruction de se désolidariser du récipient si le bouchon a été ôté. La longueur des moyens de rétention mesurée selon l'axe A-A est alors supérieure à celle des moyens de fixation de l'élément d'isolement. Elle peut être supérieure (voir figures 1 à 3) ou inférieure (voir figure 23) à celle de l'alésage du col du récipient. Elle est généralement choisie inférieure à la longueur de déplacement du bouchon (voir figure 3) de manière à ce que l'on puisse régler, en dévissant plus ou moins le bouchon, la quantité de matière sortant du récipient. En effet, la pression exercée par l'utilisateur sur le corps du récipient pousse l'élément d'obstruction vers l'ouverture, mais une fois que les moyens d'arrêt viennent en butée contre les moyens de blocage ou de maintien de l'élément d'isolement ou éventuellement contre le col du récipient, l'élément d'obstruction a atteint une position extrême qu'il ne peut dépasser, alors que l'on peut continuer à dévisser le bouchon et faciliter davantage ainsi l'évacuation du contenu du récipient. Les moyens de rétention peuvent être composés de plusieurs, par exemple, quatre, pattes 54 (figures 14,15) pouvant se disposer à l'intérieur des moyens de fixation de l'élément d'isolement et se terminant par des moyens d'arrêt revêtant la forme d'ergots 55.The retention means may comprise, at an end opposite to the lower part 53, stop means projecting relative to the means for fixing the isolation element and / or possibly relative to the bore of the neck of the container. . The role of these stop means is to retain the obstruction element and to limit its mobility relative to the isolation element and the amplitude of its movement towards the opening of the plug. The stop means also prevent the obstruction element from detaching from the container if the cap has been removed. The length of the retention means measured along the axis AA is then greater than that of the means for fixing the isolation element. It can be greater (see Figures 1 to 3) or lower (see Figure 23) than that of the bore of the container neck. It is generally chosen to be less than the displacement length of the stopper (see FIG. 3) so that the quantity of material leaving the container can be adjusted, by unscrewing the stopper more or less. In fact, the pressure exerted by the user on the body of the container pushes the obstruction element towards the opening, but once the stop means come into abutment against the means for blocking or maintaining the isolation element or possibly against the neck of the container, the obstruction element has reached an extreme position which it cannot exceed, while one can continue to unscrew the cap and thus further facilitate the evacuation of the contents of the container. The retention means can be made up of several, for example, four, lugs 54 (FIGS. 14, 15) which can be arranged inside the means for fixing the isolation element and ending with stop means. in the form of pins 55.
Le nombre de pattes 54 importe peu, mais, si lors du montage du dispositif, le jeu entre ces pattes et les moyens de fixation de l'élément d'isolement est faible, il est nécessaire qu'il demeure au moins un espace 56 (figure 15) entre deux au moins d'entre elles pour que le contenu du récipient puisse passer et se diriger vers l'ouverture du bouchon lorsque cela est souhaité. En effet, comme cela est le plus visible sur la figure 3, si les pattes 54 se reliaient et faisaient une boucle et que ledit jeu était faible, il serait très difficile d'extraire le contenu du récipient.The number of tabs 54 does not matter, but, if during the mounting of the device, the clearance between these tabs and the means for fixing the insulation element is small, it is necessary that there remain at least one space 56 ( Figure 15) between at least two of them so that the contents of the container can pass and go towards the opening of the stopper when desired. Indeed, as is most visible in Figure 3, if the legs 54 connected and made a loop and that said play was small, it would be very difficult to extract the contents of the container.
Les figures 16 et 17 représentent une variante 57 de l'élément d'obstruction dont les moyens de rétention comprennent une seule tige 58 se terminant par une barre 59 faisant un angle, de préférence de 90°, avec l'axe B-B de symétrie longitudinal de cette variante 57. Sur la figure 18 est illustré un dispositif selon l'invention installé sur le col d'un récipient et comprenant la variante 57 des figures 16 et 17, un bouchon 60 présentant une ouverture 61 précédée d'un alésage tronconique 62 dont la paroi interne est parallèle avec un premier chanfrein 63 de l'obturateur 64, un élément d'isolement présentant, comme moyens de fixation, un cylindre creux 65 dont la longueur est inférieure à celle de l'alésage du col du récipient et d'où part un évasement 66 tronconique apte à coopérer avec le deuxième chanfrein 67 de l'obturateur 64.Figures 16 and 17 show a variant 57 of the blocking element whose retention means comprise a single rod 58 ending in a bar 59 making an angle, preferably 90 °, with the axis BB of longitudinal symmetry of this variant 57. In Figure 18 is illustrated a device according to the invention installed on the neck of a container and comprising variant 57 of Figures 16 and 17, a plug 60 having an opening 61 preceded by a frustoconical bore 62 the internal wall of which is parallel with a first chamfer 63 of the shutter 64, an insulating element having, as fixing means, a hollow cylinder 65 whose length is less than that of the bore of the neck of the container and d 'where a frustoconical flaring 66 starts able to cooperate with the second chamfer 67 of the shutter 64.
Les figures 19 et 20 représentent une variante 70 de l'élément d'obstruction dont les moyens de rétention comprennent une tige 71 se terminant par quatre pans 72 sensiblement en forme de triangle rectangle et disposés à 90° l'un de l'autre de façon à former une croix lorsqu'ils sont observés en vue de dessous (figure 20). L'obturateur a globalement la forme d'un cylindre plein. Sa partie inférieure 73 comporte un chanfrein 74, sa partie médiane 75 est purement cylindrique et sa partie supérieure 76 a la forme d'un tronc de sphère.FIGS. 19 and 20 show a variant 70 of the obstructing element, the retention means of which comprise a rod 71 ending in four sides 72 substantially in the shape of a right triangle and arranged at 90 ° from one another. so as to form a cross when viewed from below (Figure 20). The shutter is generally in the form of a full cylinder. Its lower part 73 has a chamfer 74, its middle part 75 is purely cylindrical and its upper part 76 has the shape of a sphere trunk.
La figure 21 représente un dispositif selon l'invention placé sur le col d'un récipient. Ce dispositif est composé de la variante 70 des figures 19 et 20, d'un élément d'isolement analogue à celui de la figure 12, mais avec en outre un chanfrein 77 dont les parois sont parallèles au chanfrein 74 de la variante 70 et d'un bouchon 78 dont l'alésage 79 précédant l'ouverture 80 présente une forme complémentaire de celle de la partie supérieure 76 de la variante 70. Les côtés 81 des pans 72 sont sensiblement parallèles à la surface interne 75 des moyens de blocage 41 de l'élément d'isolement de la figure 12.FIG. 21 represents a device according to the invention placed on the neck of a container. This device is composed of variant 70 of FIGS. 19 and 20, of an insulating element similar to that of FIG. 12, but with, in addition, a chamfer 77 whose walls are parallel to the chamfer 74 of variant 70 and d 'a plug 78 whose bore 79 preceding the opening 80 has a shape complementary to that of the upper part 76 of the variant 70. The sides 81 of the panels 72 are substantially parallel to the internal surface 75 of the locking means 41 of the isolation element of figure 12.
Sur la figure 22 est représentée une variante d'un dispositif selon l'invention comprenant outre le bouchon 82, l'élément d'isolement 83 et l'élément d'obstruction 84, une bague 85 présentant, sur sa périphérie, un filetage 86 apte à coopérer avec le taraudage du bouchon 82 et sur sa paroi interne, un taraudage 87 apte à coopérer avec le filetage du col du récipient. Cette bague 85 présente de préférence une épaisseur, mesurée selon son axe de révolution, au moins égale à la longueur sur laquelle s'étend le filetage du col du récipient.FIG. 22 shows a variant of a device according to the invention comprising, in addition to the plug 82, the isolation element 83 and the obstruction element 84, a ring 85 having, on its periphery, a thread 86 able to cooperate with the thread of the plug 82 and on its internal wall, a thread 87 capable of cooperating with the thread of the neck of the container. This ring 85 preferably has a thickness, measured along its axis of revolution, at least equal to the length over which the thread of the neck of the container extends.
Cette variante offre l'avantage de permettre l'utilisation d'un bouchon 82 de grand diamètre et pouvant avoir une ouverture de diamètre important. Des quantités importantes de matière peuvent alors être extraires rapidement du récipient.This variant offers the advantage of allowing the use of a plug 82 of large diameter and which may have an opening of large diameter. Large amounts of material can then be quickly removed from the container.
Sur la figure 23 est représentée un autre variante d'un dispositif selon l'invention, dans laquelle l'élément d'isolement 88 est relié à une bague 89 analogue à celle de la figure 22 par un épaulement 90 de façon à former une structure d'un seul tenant. Le cylindre 91 de l'élément d'isolement 88 peut s'étendre seulement sur une partie de la longueur de l'alésage du col fileté. L'espace situé entre le cylindre 91 et le tauradage 92 de la bague 89 est dimensionné pour pouvoir recevoir le col du récipient. La bague est de préférence vissée jusqu'à ce que le col fileté vienne en butée contre l'épaulement 90. Le col se trouve alors pincé entre la bague 89 et le cylindre 91, en raison de la pression exercée par ce dernier. L'élément d'obstruction 93 peut être retenu par des pattes 94 d'une longueur suffisamment faible pour qu'elles ne débouchent pas hors du col. Les ergots 95 terminant les pattes 94 ne font pas saillie par rapport à la paroi 96 de l'alésage du col mais il font saillie par rapport à la paroi interne 97 du cylindre 91 de façon à retenir l'élément d'obstruction 93 et à limiter ses déplacements vers l'ouverture du bouchon et donc vers l'extérieur du récipient. Sur la figure 24 est illustrée une autre encore variante du dispositif selon l'invention dans laquelle l'élément d'isolement 98 et l'élément d'obstruction 99 représenté en coupe, forment une structure d'un seul tenant. L'élément d'isolement 98 peut être analogue, par exemple, à celui représenté sur la figure 10. L'élément d'obstruction 99 est généralement dans ce cas dépourvu de moyens de rétention. Il peut alors n'être constitué que d'un obturateur tel que, par exemple l'obturateur 50 visible sur la figure 14. Cependant, comme le rattachement de l'élément d'obstruction 99 peut être réalisé par un anneau de liaison ou de soudure 100 situé à peu près à la base de l'évasement de l'élément d'isolement 98 et sur sa face interne, (c'est-à-dire tournée vers l'axe de symétrie), l'élément d'obstruction 99 doit être pourvu d'au moins un canal 101 le traversant. Ce canal 101 part d'un point situé sous l'anneau 100, c'est-à-dire à l'intérieur du cylindre 102 de l'élément d'isolement 98, et débouche au-dessus de l'anneau 100, dans l'espace situé, à l'intérieur du bouchon, entre l'évasement et la partie supérieure de l'élément d'obstruction destinée à obstruer l'ouverture du bouchon. La trajectoire suivie par le contenu du récipient lors de son utilisation est symbolisée par les flèches. En l'absence d'un tel canal 101, le contenu du récipient ne pourrait pas sortir du récipient en raison de la barrière constituée par l'anneau 100.FIG. 23 shows another variant of a device according to the invention, in which the isolation element 88 is connected to a ring 89 similar to that of FIG. 22 by a shoulder 90 so as to form a structure in one piece. The cylinder 91 of the isolation element 88 may extend only over part of the length of the bore of the threaded neck. The space between the cylinder 91 and the shrinking 92 of the ring 89 is dimensioned to be able to receive the neck of the container. The ring is preferably screwed until the threaded neck abuts against the shoulder 90. The neck is then pinched between the ring 89 and the cylinder 91, due to the pressure exerted by the latter. The obstruction element 93 can be retained by lugs 94 of a sufficiently short length so that they do not open out of the neck. The lugs 95 terminating the legs 94 do not protrude relative to the wall 96 of the neck bore but they protrude relative to the internal wall 97 of the cylinder 91 so as to retain the obstruction element 93 and to limit its movements towards the opening of the stopper and therefore towards the outside of the container. In FIG. 24 is illustrated yet another variant of the device according to the invention in which the isolation element 98 and the obstruction element 99 shown in section, form a structure in one piece. The isolation element 98 may be similar, for example, to that shown in FIG. 10. The obstruction element 99 is generally in this case devoid of retention means. It may then only consist of a shutter such as, for example the shutter 50 visible in FIG. 14. However, as the attachment of the obstruction element 99 can be achieved by a connecting ring or weld 100 located approximately at the base of the flaring of the isolation element 98 and on its internal face, (that is to say facing the axis of symmetry), the obstruction element 99 must be provided with at least one channel 101 passing through it. This channel 101 starts from a point located under the ring 100, that is to say inside the cylinder 102 of the isolation element 98, and opens out above the ring 100, in the space located inside the stopper between the flare and the upper part of the obstruction element intended to obstruct the opening of the stopper. The trajectory followed by the contents of the container during its use is symbolized by the arrows. In the absence of such a channel 101, the contents of the container could not leave the container due to the barrier formed by the ring 100.
L'élément d'isolement du dispositif selon l'invention peut être constitué d'un matériau assez flexible tel qu'un métal ou alliage de métaux.The isolation element of the device according to the invention can be made of a fairly flexible material such as a metal or metal alloy.
Le bouchon est généralement en matière plastique. Il est habituellement réalisé par moulage, ce qui lui permet d'avoir des formes complexes.The cap is generally made of plastic. It is usually made by molding, which allows it to have complex shapes.
L'élément d'obstruction peut être fait de métal ou d'un alliage de métaux. L'obturateur et les moyens de rétentions peuvent réalisés ensemble ou unis par soudage.The obstruction element may be made of metal or a metal alloy. The shutter and the retention means can be made together or united by welding.
Le dispositif selon l'invention est donc facile à réaliser et d'un faible prix de revient.The device according to the invention is therefore easy to produce and at a low cost price.
H peut facilement être mis en place sur un col fileté de la manière suivante : a) on glisse ou introduit de force les moyens de fixation de l'élément d'isolement dans l'alésage du col du récipient, jusqu'à ce que l'évasement vienne en butée contre le col; ce dernier est alors, le cas échéant, enserré entre l'évasement et les moyens de blocage; b) on introduit de force les moyens d'arrêt suivis des moyens de rétention de l'élément d'obstruction entre les moyens de fixation de l'élément d'isolement, jusqu'à ce que se produise un encliquetage; grâce au jeu existant entre les moyens de fixation et les moyens de rétention, l'élément d'obstruction peut alors se déplacer librement le long son axe de symétrie sur une distance limitée; c) on met en place le bouchon en le vissant sur l'extrémité de l'évasement ou en introduisant de force cette extrémité dans l'alésage central du bouchon et en l'enfonçant jusqu'à ce que le taraudage du bouchon vienne en prise avec le filetage du col; d) on peut ensuite fermer le récipient en vissant à fond le bouchon, c'est-à- dire normalement jusqu'à ce que la partie supérieure de l'obturateur vienne en butée contre la partie supérieure du bouchon. Toutefois, si les différents éléments du dispositif n'ont pas été dimensionnés correctement, le vissage ne pourra se faire que jusqu'à ce que l'extrémité de l'évasement vienne en butée contre la partie supérieure du bouchon, ou jusqu'à ce que le bas du bouchon vienne en butée contre le corps du récipient.H can easily be placed on a threaded neck as follows: a) the fastening means of the isolation element are slid or forced into the bore of the neck of the container, until the flare comes into abutment against the neck; the latter is then, if necessary, sandwiched between the flare and the locking means; b) the stopping means followed by the means for retaining the obstruction element are forcibly inserted between the means for fixing the isolation element, until a click occurs; thanks to the play existing between the fixing means and the retention means, the obstruction element can then move freely along its axis of symmetry over a limited distance; c) the plug is put in place by screwing it onto the end of the flare or by forcibly introducing this end into the central bore of the plug and pressing it in until the thread of the plug comes into engagement with neck thread; d) the container can then be closed by screwing the stopper fully down, that is to say normally until the upper part of the shutter abuts against the upper part of the stopper. However, if the various elements of the device have not been dimensioned correctly, the screwing can only be done until the end of the flaring abuts against the upper part of the plug, or until that the bottom of the cap abuts against the body of the container.
Bien évidemment, l'invention n'est en aucune façon limitée par les particularités qui ont été précisées dans ce qui précède ou par les détails des modes de réalisation ou des variantes choisis pour l'illustrer. Nombre de modifications peuvent être apportées aux réalisations particulières et aux variantes qui ont été décrits à titre, d'illustration et à leurs éléments constitutifs sans sortir pour autant du cadre de l'invention. Cette dernière englobe par conséquent tous les moyens constituant des équivalents techniques des moyens décrits ainsi que leur combinaison. Obviously, the invention is in no way limited by the features which have been specified in the foregoing or by the details of the embodiments or of the variants chosen to illustrate it. A number of modifications can be made to the particular embodiments and to the variants which have been described by way of illustration and to their constituent elements without thereby departing from the scope of the invention. The latter therefore includes all the means constituting technical equivalents of the means described as well as their combination.

Claims

REVENDICATIONS
1. Dispositif de fermeture d'un récipient à col (2) fileté comprenant : - un bouchon (1,10,45,60,78,82) ayant une partie centrale (13) comportant un alésage (11) pourvu d'un taraudage (12) apte à coopérer avec le filetage du col (2) du récipient, et une partie supérieure (13bis) comportant une ouverture (17,61,80), la fin (19) dudit taraudage (12) étant séparée de ladite partie supérieure (13bis) par une surface de glissement (18,46), - un élément d'obstruction (3,49,57,70,84,93,99) de ladite ouverture1. Device for closing a threaded neck container (2) comprising: - a stopper (1,10,45,60,78,82) having a central part (13) comprising a bore (11) provided with a internal thread (12) able to cooperate with the thread of the neck (2) of the container, and an upper part (13bis) comprising an opening (17,61,80), the end (19) of said internal thread (12) being separated from said upper part (13bis) by a sliding surface (18,46), - an obstruction element (3,49,57,70,84,93,99) of said opening
(17,61,80), caractérisé en ce qu'il comprend en outre :(17,61,80), characterized in that it further comprises:
- un élément d'isolement (4,21,25,30,36,42) présentant des moyens de fixation (24,26,33,38,65,91,102) aptes à s'insérer dans le col (2) du récipient et un évasement (22,28,34,37,44,66) dont l'extrémité (6,23,29,47) est dimensionnée pour venir en contact avec ladite surface de glissement (18,46) dudit bouchon (1,10,45,60,78,82) sur toute la circonférence dudit alésage (11) de façon à réaliser une barrière étanche rendant impossible le passage du contenu du récipient.- an isolation element (4,21,25,30,36,42) having fixing means (24,26,33,38,65,91,102) able to be inserted in the neck (2) of the container and a flare (22,28,34,37,44,66) whose end (6,23,29,47) is dimensioned to come into contact with said sliding surface (18,46) of said plug (1, 10,45,60,78,82) over the entire circumference of said bore (11) so as to produce a tight barrier making it impossible for the contents of the container to pass.
2. Dispositif selon la revendication 1, caractérisé en ce que lesdits moyens de fixation (24,26,33,38,65,91,102) dudit élément d'isolement (4,21,25,30,36,42) sont dimensionnés pour exercer une pression sur tout ou partie de la surface de l'alésage du col (2) du récipient afin de maintenir en place ledit élément d'isolement (4,21,25,30,36,42).2. Device according to claim 1, characterized in that said fixing means (24,26,33,38,65,91,102) of said isolation element (4,21,25,30,36,42) are dimensioned for exert pressure on all or part of the surface of the bore of the neck (2) of the container in order to hold in place said insulation element (4,21,25,30,36,42).
3. Dispositif selon la revendication 2, caractérisé en ce que lesdits moyens de fixation (24,26,33,38,65,91,102) sont constitués soit par un anneau (26bis) et au moins une patte (26) soit par un cylindre (24,33,38,65,91,102).3. Device according to claim 2, characterized in that said fixing means (24,26,33,38,65,91,102) are constituted either by a ring (26bis) and at least one lug (26) or by a cylinder (24.33.38.65.91.102).
4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit élément d'isolement (4,21,25,30,36,42) présente sensiblement la forme d'un entonnoir.4. Device according to any one of the preceding claims, characterized in that said isolation element (4,21,25,30,36,42) has substantially the shape of a funnel.
5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que lesdits moyens de fixation (24,26,33,38,65,91,102) comprennent des moyens de blocage (31,40,41). 5. Device according to any one of claims 1 to 4, characterized in that said fixing means (24,26,33,38,65,91,102) comprise locking means (31,40,41).
6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit élément d'obstruction (3,49,57,70,84,93,99) comprend un obturateur (50,64) et des moyens de rétention (54,55,58,59,71,72,81,94,95) limitant son déplacement.6. Device according to any one of the preceding claims, characterized in that said obstruction element (3,49,57,70,84,93,99) comprises a shutter (50,64) and retention means ( 54.55.58.59.71.72.81.94.95) limiting its movement.
7. Dispositif selon la revendication 6, caractérisé en ce que lesdits moyens de rétention (54,55,58,59,71,72,81,94,95) comprennent au moins une patte (54,94) ou une tige (58,71) se terminant par des moyens d'arrêt (55,59,72,95).7. Device according to claim 6, characterized in that said retention means (54,55,58,59,71,72,81,94,95) comprise at least one lug (54,94) or a rod (58 , 71) ending with stop means (55,59,72,95).
8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en qu'il comprend en outre une bague (85,89) destinée à venir s'insérer entre le filetage du col du récipient et le taraudage (12) du bouchon (1,10,45,60,78,82).8. Device according to any one of the preceding claims, characterized in that it further comprises a ring (85,89) intended to be inserted between the thread of the neck of the container and the internal thread (12) of the plug (1 , 10,45,60,78,82).
9. Dispositif selon la revendication 8, caractérisé en ce que ledit élément d'isolement (88) et ladite bague (89) forment une structure d'un seul tenant.9. Device according to claim 8, characterized in that said isolation element (88) and said ring (89) form a structure in one piece.
10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que ledit bouchon (1,10,45,60,78,82) et ledit évasement (22,28,34,37,44,66) sont dimensionnés de telle sorte que le contact entre ladite surface de glissement (18,46) et ladite extrémité (6,23,29,47) soit linéaire ou pratiquement linéaire, ou se fasse sur une distance suivant l'axe Y-Y au moins deux fois inférieure à la distance sur laquelle s'étend ledit évasement (22,28,34,37,44,66) à partir des moyens de fixation (24,26,33,38,65,91,102).10. Device according to any one of claims 1 to 9, characterized in that said plug (1,10,45,60,78,82) and said flare (22,28,34,37,44,66) are dimensioned so that the contact between said sliding surface (18,46) and said end (6,23,29,47) is linear or practically linear, or is made over a distance along the YY axis at least twice less than the distance over which said flare extends (22,28,34,37,44,66) from the fixing means (24,26,33,38,65,91,102).
11. Dispositif selon la revendication 10, caractérisé en ce que les éléments d'isolement (98) et d'obstruction (99) forment une structure d'un seul tenant et en ce que ledit élément d'obstruction (99) est traversé par au moins un canal (101).11. Device according to claim 10, characterized in that the isolation elements (98) and obstruction (99) form a structure in one piece and in that said obstruction element (99) is crossed by at least one channel (101).
12. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que ledit taraudage (12) dudit bouchon (1,10,45,60,78,82) fait saillie par rapport à ladite surface de glissement (18,46).12. Device according to any one of claims 1 to 11, characterized in that said internal thread (12) of said plug (1,10,45,60,78,82) projects relative to said sliding surface (18, 46).
13. Récipient caractérisé en ce qu'il comporte un dispositif selon l'une quelconque des revendications 1 à 12. 13. Container characterized in that it comprises a device according to any one of claims 1 to 12.
EP95920985A 1994-06-08 1995-05-24 Device for closing a threaded neck container Expired - Lifetime EP0762976B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9402494 1994-06-08
FR9402494A FR2721006B1 (en) 1994-06-08 1994-06-08 Anti-fouling device for screw thread tubes.
PCT/FR1995/000682 WO1995033658A1 (en) 1994-06-08 1995-05-24 Device for closing a threaded neck container

Publications (2)

Publication Number Publication Date
EP0762976A1 true EP0762976A1 (en) 1997-03-19
EP0762976B1 EP0762976B1 (en) 1999-03-31

Family

ID=9460672

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Application Number Title Priority Date Filing Date
EP95920985A Expired - Lifetime EP0762976B1 (en) 1994-06-08 1995-05-24 Device for closing a threaded neck container

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EP (1) EP0762976B1 (en)
JP (1) JPH10500926A (en)
AT (1) ATE178284T1 (en)
DE (1) DE69508752D1 (en)
FR (1) FR2721006B1 (en)
WO (1) WO1995033658A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2459519B (en) * 2008-06-16 2010-11-17 Weird & Wonderful World Ltd Closure element for a fluid container

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH323486A (en) * 1954-08-09 1957-07-31 S Van Baarn Paul Device for closing a container with a neck and in particular a tube
BE630778A (en) * 1962-04-09
FR1603045A (en) * 1968-07-29 1971-03-15

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9533658A1 *

Also Published As

Publication number Publication date
JPH10500926A (en) 1998-01-27
DE69508752D1 (en) 1999-05-06
FR2721006B1 (en) 1997-05-16
FR2721006A1 (en) 1995-12-15
EP0762976B1 (en) 1999-03-31
ATE178284T1 (en) 1999-04-15
WO1995033658A1 (en) 1995-12-14

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