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
  • B65D51/00—Closures not otherwise provided for
  • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
  • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
  • B65D51/22—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure
  • B65D51/228—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being removed from the container after the opening
• • 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
  • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
  • B65D35/22—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with two or more compartments
• • 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
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
  • B65D81/3216—Rigid containers disposed one within the other
  • B65D81/3227—Rigid containers disposed one within the other arranged parallel or concentrically and permitting simultaneous dispensing of the two materials without prior mixing
• • 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
  • B65D2251/00—Details relating to container closures
  • B65D2251/0003—Two or more closures
  • B65D2251/0006—Upper closure
  • B65D2251/0015—Upper closure of the 41-type
• • 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
  • B65D2251/00—Details relating to container closures
  • B65D2251/0003—Two or more closures
  • B65D2251/0068—Lower closure
  • B65D2251/0093—Membrane
  • B65D2251/0096—Membrane integral with the container

Definitions

• the invention relates to multi-container packaging provided with adjacent or contiguous distribution necks which make it possible to store and distribute simultaneously different liquid, viscous, creamy or pasty products (these products will be called “pasty”). It relates in particular to so-called flexible tubes.
• Such packages make it possible to store products separately from one another and make it possible to simultaneously distribute these products through orifices that are close, if possible contiguous, for example with a view to the master (or extemporaneous) preparation of a pharmaceutical product under a particular dosage form not commercially available, or for the preparation of an adhesive using polymerizing agents, typically a cyanoacrylate, or for the preparation of a chemically unstable cosmetic product, such as a hair dye (mixture of an oxidizing agent and a precursor) or simply, in order to give a pleasant and playful visual effect during the simultaneous distribution of pasty products of different colors (gels for hair, toothpaste, etc.).
• a hair dye mixture of an oxidizing agent and a precursor
• a multiple flexible tube has a head with a multiple orifice neck connected to an outer flexible skirt by a shoulder.
• the tube may comprise several concentric skirts, the products being contained either in the internal volume of the inner tube, or between the walls of the skirt of a tube and that of the tube which immediately surrounds the preceding tube.
• these are double tubes, comprising an inner tube and an outer tube.
• Such multiple tubes are described in patent applications EP 0 561 719, WO 00/631 12 and WO 00/63111, where the inner tube is fitted into the outer tube.
• the single flexible skirt constitutes the outer casing of the multiple tube.
• At least one transverse wall separates compartments in the interior volume defined by the skirt, said compartments being intended to contain different products.
• Such multiple tubes are described for example in the application WO 00/55062.
• the present invention relates more particularly to the first type of multiple tube where the tubes are made separately and then assembled in the manner of the Russian dolls, each tube, except the smallest, enveloping a tube of smaller dimensions (the dimensions concerned being at least the diameter skirt and the diameter of the neck).
• the second type of tube even if the leakage problem described below is to a lesser degree, because this second type of double tube is necessarily obtained by molding a complex-shaped dispensing head with multiple orifices, the main difficulty here lies in obtaining a watertight connection of the head with not only the outer cylindrical skirt but also with the inner partition wall.
• the tube called "automixer” comprises three tubes having a neck closed by a top wall, nested one inside the other, and held concentrically relative to each other by their respective necks. As long as the tube is not open, the products packaged in the three separate envelopes thus formed are well insulated. The opening of the automixer tube is performed in a single operation by perforation or simultaneous sectioning of the walls of the three tubes in a suitable place.
• the double tubes described in the application WO 00/12309 are obtained as follows: a) separate embodiment of an outer tube and an inner tube whose neck, of complex shape, is designed so that it offers one or more flow veins for the pasty product A, intended to be contained in the inner tube and, in cooperation with the interior of the cylindrical wall of the neck of the outer tube, one or more flow veins to the pasty product B , intended to be contained between the inner tube and the outer tube, once they are assembled; b) assembly by insertion of the inner tube into the outer tube, maintaining the inner tube inside the outer tube at the base of the neck by means of complementary axial immobilization means, typically a combination bead / groove d ratchet; c) filling the internal volume of the inner tube with a pasty product A; d) filling the volume between the wall of the inner tube and that of the outer tube of a pasty product B; - AT -
• the tubes are made in a conventional manner: the outer (or inner) tube head is molded, unpitched and fixed on the end of a skirt, intended to become the outer skirt (resp., Intended to become the inner skirt). ).
• the molding tool is preferably designed so that the excess plastic resulting from the molding by injection (core) or compression molding is located above the top portion of the neck. This surplus must be removed.
• the removal of said surplus is effected, advantageously for high rates, by lathe machining, generally on devices, called cappers, where the tubes, placed on rotating mandrels, undergo various operations such as as greaterarottage, the installation of a cap, the screwing of a cap, etc.
• this procedure has the disadvantage of not giving a great precision on the axial positioning of the cup of decarter nor on the good perpendicularity of said cut. Therefore, it is not possible to perfectly control the height of the neck of each of these tubes, in particular the distance between the rim - top wall of the neck - and the axial immobilization means for cooperating with the means of axial immobilization complementary to the other tube.
• a first object according to the invention is a double dispensing container comprising an outer container and an inner container, said inner container being intended to contain a pasty product A and being housed inside the outer container so that the volume defined by its outer surface and the inner surface of the outer container is intended to contain a pasty product B, each container comprising a body and a head provided with a neck and a shoulder connecting said neck to said body, said neck having a side wall and an open end provided with one or more dispensing orifices, the neck of the inner container being housed inside the neck of the outer container and having a section of such shape that it offers one or more flow veins for the product pasty A opening on a single or multiple port of distribution of the product A and, in combination with the inner surface of the neck of the recipie external, one or more flow veins for the pasty product B opening on a single or multiple port for dispensing the product B, characterized in that the inner neck is extended by a top portion which is connected to said neck by a thin annular zone and which close
• the double dispensing container according to the invention may be a double tube, comprising an outer tube and an inner tube housed inside the outer tube so that the volume delimited by the outer surface of the inner tube and the inner surface of the tube externally may contain a pasty product B different from the pasty product A contained in the inner tube.
• Each tube comprises a flexible skirt and a head provided with a neck and a shoulder connecting said neck to said flexible skirt.
• Each of the elements of the container or tube will be described as internal if it belongs to the inner tube and externally if it belongs to the outer tube.
• the inner neck is housed inside the outer neck. It has a section of such shape that it offers one or more flow veins for the pasty product A opening on one or more dispensing orifices.
• the outer surface of the inner neck provides one or more flow veins for the pasty product B opening on one or more dispensing orifices (single or multiple orifice).
• the inner neck is covered by a summit portion which is connected to said inner neck by a thin annular zone, that is to say whose thickness is less than that of the inner neck drum and that of the top portion. This summit portion closes the dispensing orifice, single or multiple, of the product A contained in the inner tube.
• the summit portion may for example be a simple top wall which comprises said thin annular zone, the contour thereof delimiting the desired shape of the orifices.
• the thin annular zone is a breakable zone that comprises a notch whose section by a plane passing through the axis of the neck is oriented in a direction substantially parallel to said axis.
• the removal of the apex-shaped top portion may be effected by exerting an axial force perpendicular to said top wall.
• the inner neck of said top wall by locating the thin annular zone on the side wall of said inner neck, so that after rupture, the open end of the inner neck "always" exceeds the rim of the external neck, regardless of the dispersions due to manufacturing tolerances.
• the end of the inner neck is extended by a top portion connected to said inner neck by a thin annular zone located on the neck of the neck and preferably notched to locate a deformation until rupture during the first use .
• the assembly of the inner head including the top portion, is molded in one piece and the mold is designed so that the thin annular zone is accessible after the assembly of the two tubes: after breaking the thin annular zone and detachment of the uppermost portion, the open end of the inner neck slightly protrudes from the rim of the outer neck, which makes it possible to ensure, by means of a seal placed on the plug, at the bottom of the screw thread for example, a hermetic separation between product A and product B.
• the thin annular zone is a breakable zone that extends on the side wall of the inner neck with a notch whose section by a plane passing through the axis of the inner neck is oriented in a direction substantially perpendicular to said axis.
• this breakable zone is placed at a distance from the axial immobilization means (typically a ratchet bead) such that the breakable zone is found outside after assembly of the inner tube and the outer tube; that is, it is "above" the mouth of the outer neck (the tube being conventionally presented vertically, head up).
• the axial position of the breakable zone is defined by a certain distance from the snap-fitting bead located at the base of the inner neck, said distance to be greater than the distance between the rim of the outer neck and the ratching groove of the outer neck.
• the top portion acting as a lid can be cut cleanly using a cutting tool that is moved along the thin annular zone. It is also possible to impose a large relative displacement of the top portion relative to the rest of the inner neck, the large relative displacement resulting in a large localized deformation in the thin annular zone and then by breaking the latter.
• top portion is provided with a grooved side wall or polygonal section, preferably concave (star for example), it is easily drivable in rotation about the axis of the neck. It is therefore possible to impose on the upper portion of the inner neck a large rotation while the rest of the double tube is stationary.
• the top portion closing the internal orifice can take any form appropriate to the application of a large displacement (typical a rotation) imposed on said summit portion.
• the cap may for example have a polygonal peripheral portion, easily drivable in rotation.
• the latter has for example on the outer wall, like the plug described in EP 0 192 136 application, a housing of complementary shape to that of the side wall of the uppermost portion.
• This housing once the cap returned 180 ° from its usual closed position, plays the role of a lock inside which is introduced the top portion of the inner neck which itself serves as a key.
• the cap is turned around the axis of the neck. It follows a localized tear at the level of the thin annular zone and the summit portion is detached from the neck.
• the top wall has in this case a cavity bordered by an inner side wall ribbed or having a preferably concave polygonal section and the cap has on its outer wall a protuberance of complementary shape.
• the outer neck is also surmounted by a summit portion which closes the multiple orifice.
• This summit portion is also connected to the outer neck via a thin annular zone or notched.
• this summit portion is hollow so that the summit portion of the inner tube can be housed in its cavity.
• the inner and outer surfaces of its side wall have polygonal contours, typically star, complementary, for the first, the contour of the side wall of the top portion the inner neck and, for the second, the contour of the inner surface of the cap. In this way, the rotation of the cap causes the breaking of the two breakable zones which connect the inner and outer summit portions to their respective necks.
• Another object of the invention is therefore a multiple dispensing container comprising an outer container, an inner container and n intermediate containers (n> 1), said inner container being intended to contain a pasty product A and being housed inside the container.
• the neck of the directly larger container is advantageously also surmounted by a top portion, connected to the neck of said container via a thin annular zone and / or notched.
• this last summit portion is hollow so that the top portion of the directly smaller container can be housed in its cavity.
• Said thin and / or notched annular zone is placed on the wall of the neck of said inner container so that, after assembly of said neck with that of the directly larger container, then rupture of the thin annular zone and / or notched and detachment of said uppermost portion, the open end of said neck is above the rim of the neck of the container directly larger, the tube being presented vertically, head up.
• Figures 1a, 1b, 1c, 1d and 1c illustrate a first embodiment of the invention.
• Figure la shows a section through a diametral plane of the double tube with its plug before first use.
• Figure 1b shows the double tube at the moment when, with the aid of the inverted cap, the top portion acting as a lid on the orifice of the inner neck is removed.
• Figure I c shows the double tube with its cap after first use.
• Figure Id represents in axonometric projection the double tube without its cap, before removal of the summit portion acting as operculum on the inner neck.
• Figure 1 e shows in perspective the double tube without its cap, after removal of the uppermost portion acting as operculum on the inner neck.
• Figures 2a, 2b, 2c, 2d and 2e illustrate a second embodiment of the invention.
• Figure 2a shows a section through a diametral plane of the double tube with its plug before first use.
• FIG. 2b shows the double tube at the moment when, with the aid of the inverted cap, the top portion acting as a lid on the orifice of the inner neck is removed.
• Figure 2c shows the double tube with its cap after first use.
• FIG. 2d represents, in axonometric projection, the double tube without its stopper, before removal of the summit portion acting as an operculum on the inner neck.
• Figure 2e shows in perspective the double tube without its cap, after removal of the top portion acting as a lid on the inner neck.
• Figures 3a, 3b, 3c and 3d illustrate a third embodiment of the invention.
• Figure 3a shows a section through a diametral plane of the double tube with its plug before first use.
• FIG. 3b shows the double tube at the moment when, with the aid of the inverted cap, the top portion acting as a lid on the orifice of the inner neck is removed.
• Figure 3c shows the double tube with its cap after first use.
• Figure 3d illustrates in perspective the head of the inner tube before removal of the top portion acting as a lid.
• FIGS. 4 ⁇ , 4b and 4c illustrate an improvement of the second embodiment of the invention in which, by adding a tamper-proof guarantee strip, the seal between products after first use is improved.
• FIG. 4a shows a section through a diametral plane of the double tube with its cap before first use.
• FIG. 4b shows the double tube at the moment when, with the aid of the inverted cap, the top portion acting as a lid on the orifice of the inner neck is removed.
• FIG. 4c shows the double tube provided with its cap after first use
• FIGS. 1a to 1c show a double tube 100, comprising an outer tube 110 and an inner tube 120 housed inside the outer tube 110 so that the volume delimited by the outer surface 125 of the inner tube 120 and the inner surface 115 of the outer tube 110 may contain a pasty product B different from the pasty product A contained in the inner tube 120.
• the inner tube 120 comprises an inner flexible skirt 121 and an inner head 122 provided with an inner neck 123 and a shoulder internal 124 connecting said inner neck to said inner flexible skirt.
• the outer tube 110 comprises an outer flexible skirt 111 and an outer head 112 provided with an outer neck 113 and an outer shoulder 114 connecting said outer neck to said outer flexible skirt.
• the shoulder 114 is provided with an insert 170 of PBT (polybutylene terephthalate) which has good barrier properties to the diffusion of aromas.
• PBT polybutylene terephthalate
• the inner neck 123 is housed inside the outer neck 113.
• it has a trefoil-shaped section such as that illustrated in WO 00/63111 (but here with three leaflets instead of four).
• It offers a central flow vein (with cloverleaf section) for the product Paste A and, in combination with the cylindrical surface of the outer neck, three peripheral flow veins for the pasty product B.
• the end of the inner neck 123 which surrounds the dispensing orifice of the pasty product A is extended by a top portion 126 connected to said inner neck by a breakable intermediate zone 127 having an annular notch 128 whose section by a plane passing through the axis 160 is oriented in a direction substantially perpendicular to said axis.
• the top portion 126 is provided with a side wall 129 which extends the shaft of the inner neck whose cloverleaf-shaped section is substantially polygonal concave. This is easily drivable in rotation about the axis 160.
• the thin annular zone 127 is placed on the side wall of the inner neck 123 so that after assembly of the inner neck and the outer neck, it is found on the outer surface of the double tube, that is to say that it is located "above" the rim 1130 of the outer neck 113 (the tube being conventionally presented vertically, head up).
• the axial position of the thin annular zone is defined by a certain distance from the ratchet bead 1231 situated at the base of the inner neck 123, said distance being greater than the distance existing between the rim 1130 and the ratchet groove 1131 of the outer neck 113.
• the stopper 150 is used.
• the latter has a housing 151 of complementary shape to that of the side wall 129 of the summit portion 126.
• This housing once the stopper is turned 180 °. (FIG. 1b) with respect to its usual closed position (FIGS. 1a and 1c) plays the role of a lock inside which the top portion 126 of the inner neck 123, which plays the role of a key.
• the stopper 150 is rotated around the axis 160. A localized tear is then made at the level of the thin annular zone 127 and the summit portion is detached from the neck.
• Figures 2a to 2e show a double tube 200, comprising an outer tube 210 and an inner tube 220 housed inside the outer tube 210 so that the volume delimited by the outer surface 225 of the inner tube 220 and the inner surface 215 of the outer tube 210 may contain a pasty product B different from the pasty product A contained in the inner tube 220.
• the inner tube 220 comprises an inner flexible skirt 221 and an inner head 222 provided with an inner neck 223 and a shoulder internal 224 connecting said inner neck to said inner flexible skirt.
• the outer tube 210 comprises an outer flexible skirt 211 and an outer head 212 provided with an outer neck 213 and an outer shoulder 214 connecting said outer neck to said outer flexible skirt.
• the shoulder 214 is provided on its inner surface with a PBT insert 270 which has good barrier properties to the diffusion of aromas.
• the inner neck 223 is housed inside the outer neck 213. It has here a circular section provided with three radial ribs 230 regularly distributed on its outer surface. It offers a flow stream with a circular central section for the pasty product A and, in combination with the cylindrical surface of the outer neck, three peripheral flow veins for the pasty product B.
• the end of the inner neck 223 surrounding the dispensing orifice of the pasty product A is extended by a top portion 226 connected to said inner neck by a breakable intermediate zone 227 having an annular notch 228 whose section by a plane passing through the axis 260 is oriented in a direction substantially perpendicular to said axis.
• the summit portion 226 is provided with a grooved side wall 229 easily drivable in rotation about the axis 260.
• the stopper 250 is used.
• the latter has a hollow recess 251 of complementary shape to that of the side wall 219 of the summit portion 216 of the outer neck 213.
• This upper portion 216 is connected to the outer neck 213 through a notched annular zone 217.
• the upper portion 216 is hollow so as to that the top portion 226 of the inner tube can be housed in its cavity.
• the inner and outer surfaces of the side wall 219 are provided with ribs and offer complementary reliefs respectively of the contour of the side wall 229 of the inner summit portion 226 and the contour of the hollow housing 251 of the plug 250 to ensure the rotational drive relative simultaneous of the inner and outer apices 229 and 219.
• the notched annular zone 227 is placed on the side wall of the inner neck 223 such that after assembly of the inner neck and the outer neck, it is found “above” the rim 2130 of the outer neck 213 (the tube being conventionally presented vertically, head up).
• the axial position of the thin annular zone is defined by a certain distance from the snap-fitting bead 2231 situated at the base of the inner neck 223, said distance being greater than the distance existing between the rim 2130 and the ratchet groove 2131 of the outer neck 213.
• the hollow housing 250 plays the role of a lock inside which is introduced the top portion 216 of the outer neck 213 which acts as a key.
• the plug 250 is rotated around the axis 260. This results in a localized tear at the annular notched break zone 217, and another tear at the annular notch breakable zone 227.
• Example 3 (FIGS. 3 ⁇ , 3b, 3c and 3d)
• FIGS. 3 ⁇ to 3d represent a double tube 300, comprising an outer tube 310 and an inner tube 320 housed inside the outer tube 310 so that the volume delimited by the external surface 325 of the inner tube 320 and the inner surface 315 of the outer tube 310 may contain a pasty product B different from the pasty product A contained in the inner tube 320.
• the inner tube 320 comprises an inner flexible skirt 321 and an inner head 322 provided with an inner neck 323 and a shoulder internal 324 connecting said inner neck to said inner flexible skirt.
• the outer tube 310 comprises an outer flexible skirt 311 and an outer head 312 provided with an outer neck 313 and an outer shoulder 314 connecting said outer neck to said outer flexible skirt.
• the shoulder 314 is provided with a PBT insert 370 which has good barrier properties to the diffusion of aromas.
• the inner neck 323 is housed inside the outer neck 313. It has here a circular section provided with three radial ribs 330 regularly distributed on its outer surface. It offers a flow stream with a circular central section for the pasty product A and, in combination with the cylindrical surface of the outer neck, three peripheral flow veins for the pasty product B.
• the end of the inner neck 323 which surrounds the dispensing orifice of the pasty product A is extended by a summit portion 326 connected to said inner neck by a breakable zone 327 having an annular notch 328 whose section by a plane passing through the axis 360 is oriented in a direction substantially perpendicular to said axis.
• the top portion 326 is provided with a ribbed inner side wall 32? easily drivable in rotation about the axis 360.
• the cap 350 is used. has a protrusion 351 of complementary shape to that of the inner side wall 329 of the summit portion 326. This protuberance, once the cap is turned 180 ° ( Figure 3b) relative to its usual closed position ( Figures 3a and 3c) plays the role of a key that is introduced into the cavity of the top portion 326 of the inner neck 323, this cavity being bordered by the inner ribbed side wall 329 which acts as a lock.
• the cap 350 is rotated around Tax 360. This results in a localized tear at the level of the thin annular zone 327 and the top portion detaches from the neck.
• the thin annular zone 327 is placed on the side wall of the inner neck 323 such that after assembly of the inner neck and the outer neck, it is found on the outer surface of the double tube, that is to say that it is located "above" the rim 3130 of the outer neck 313.
• the axial position of the thin annular zone is defined by a certain distance from the ratchet bead 3231 located at the base of the inner neck 323, said distance being greater than the distance between the rim 3130 and the ratchet groove 3131 of the outer neck 313.
• FIGS. 4 ⁇ to 4c show a variant of the double tube of example 2, in which, by adding a strip 453 in the extension of the opening end of the lateral skirt 452 of the plug 450, the sealing between products after simultaneous opening of the top portions 416 and 426 during the first use.
• the band 453 - which may for example be used as a tamper-proof guarantee - is torn according to the annular rupture zone 457 and the plug 450 is turned 180 ° (FIG. 4b) in order to remove the top wall by rotation. 426 of the inner tube and 416 of the outer tube.
• the open end of the skirt arrives, in the closed position, near the shoulder 414 of the tube head.
• the height of the band 453 is substantially equal to that of the top portion 416 of the outer tube, which is above the notched annular breakable zone 417, so that when the plug 450 is again turned through 180 ° for plug the orifice, the seal 480 comes into contact with the drink 4230 of the inner neck 423 and 4130 of the outer neck 413.
• the double tube 400 comprises an outer tube 410 and an inner tube 420 housed inside the outer tube 410 so that the volume delimited by the outer surface 425 of the inner tube 420 and the inner surface 415 of the outer tube 410 can contain a pasty product B different from the pasty product A contained in the inner tube 420.
• the inner tube 420 comprises an inner flexible skirt 421 and an inner head 422 provided with an inner neck 423 and an inner shoulder 424 connecting said inner neck to said inner flexible skirt.
• the outer tube 410 comprises an outer flexible skirt 411 and an outer head 412 provided with an outer neck 413 and an outer shoulder 414 connecting said outer neck to said outer flexible skirt.
• the shoulder 414 is provided on its internal surf ⁇ ce of a 470 insert in PBT which has good barrier properties to the diffusion of aromas.
• the end of the inner neck 423 which surrounds the dispensing orifice of the pasty product A is extended by a top portion 426 connected to said inner neck by a breakable intermediate zone 427.
• the top portion 426 is provided with an easily grooved side wall 429. drivable in rotation.
• the plug 450 is used to tear this breakable zone during the first use.
• the latter has a hollow rib recess 451 of shape complementary to that of the lateral wall 419 of the summit portion 416 of the external neck 413.
• This summit portion 416 is connected to the outer neck 413 by means of a notched annular zone 417.
• the summit portion 416 is hollow so that the summit portion 426 of the inner tube can be housed in its cavity.
• the inner and outer surfaces of the side wall 419 are provided with ribs and offer complementary reliefs respectively of the contour of the side wall 429 of the inner crown portion 426 and the contour of the hollow housing 451 of the plug 450 to ensure the rotational drive relative simultaneous of the inner 429 and outer 419 vertex portions.
• the notched annular zone 427 is placed on the side wall of the inner neck 423 such that after assembly of the inner neck and the outer neck, it is found "above" the rim 4130 of the outer neck 413.
• the axial position of the thin annular zone is defined by its distance from the snap-fitting bead of the inner neck 423, which must be greater than the distance existing between the rim 4130 and the ratching groove of the outer neck. 413.
• the hollow housing 451 plays the role of a lock inside which is introduced the top portion 416 of the outer neck 413 which plays the role of a key.
• the cap 450 around of the axis and there follows a localized tear at the annular notched breakable zone 417, and another tear at the annular notched breakable zone 427.
• the seal 480 arrives first in contact with the inner rim 4230 to seal between products.
• This seal 480 is made of an elastomeric material. It is sufficiently flexible and thick to also come into contact with the outer rim 4130 and seal the products from the outside.
• the hollow rib housing 451 has a complementary shape and very close to that of the side wall 419 of the summit portion 416 of the outer neck 413, so that after breakage of the breakable zone 417, said top portion remains trapped in said hollow housing, thus serving as a first-use control.
• the summit portion 426 of the inner tube may also remain trapped in the hollow of the top portion 416 of the outer tube.

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

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

Country Status (7)

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Family Cites Families (16)

• 2005
  • 2005-05-30 FR FR0505449A patent/FR2886274B1/fr not_active Expired - Fee Related
• 2006
  • 2006-05-22 WO PCT/FR2006/001163 patent/WO2006128993A1/fr active Application Filing
  • 2006-05-22 MX MX2007014926A patent/MX2007014926A/es not_active Application Discontinuation
  • 2006-05-22 CN CNA2006800187098A patent/CN101184676A/zh active Pending
  • 2006-05-22 US US11/915,791 patent/US8622245B2/en not_active Expired - Fee Related
  • 2006-05-22 EP EP06764659A patent/EP1885615A1/de not_active Withdrawn
  • 2006-05-22 CA CA002609380A patent/CA2609380A1/fr not_active Abandoned

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