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
  • B65D51/221—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 left inside the container after the opening
  • B65D51/222—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 left inside the container after the opening the piercing or cutting means being integral with, or fixedly attached to, the outer closure
  • B65D51/225—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 left inside the container after the opening the piercing or cutting means being integral with, or fixedly attached to, the outer closure and further comprising a device first inhibiting displacement of the outer closure
• • 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
  • B65D2251/0025—Upper closure of the 47-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

Definitions

• the present invention relates to a pouring screw cap for plugging a closed container neck until the first use by a perforable seal.
• a capsule of this type is known, for example, from document EP-A-0 214 095.
• a screw capsule has an end wall provided with a central pouring orifice and a cutting tooth comprising a central point and a lateral flank whose function is to move the partially cut-out cover towards the outside, when the cap is screwed to the bottom of the container, after tearing off a guarantee strip from the "ratchet" type, extending downwards the outer skirt of the capsule body.
• a screw cap comprises, for the perforation of a perforable cover closing off a container neck, either a bistable perforator provided on the end wall of the body of the capsule, which allows, when the capsule is screwed fully onto the container neck, to perforate the cover and then cut it into an arc by unscrewing the capsule (see in particular Figure 5), or a bistable perforator provided on a cover pivoting of the capsule, so that it can be inserted into a pouring orifice of the capsule and thus perforate the lid of the container neck.
• Document JP-A-07 330009 describes a capsule comprising a pouring nozzle forming a passageway, as well as two knives which protrude in the extension of the circular edge of the passageway, formed by separating a semi-body cylindrical, the corners of this slot constituting cutting edges oriented in the direction of rotation of the capsule body, which cut an aluminum cover by drawing two cutting lines therein, the cover not being torn by force, the area of the opening made in the opening remaining small.
• This type of capsule also has a number of drawbacks.
• the knives do not allow cutting of the cover sufficient to completely clear the passageway, so that this capsule is limited to applications in which the product contained in the container to which it is attached, is of sufficiently liquid consistency. or fine to pass through the slot, between the knives.
• this type of capsule is not suitable in the case of condiments containing lumps or pieces of size larger than the passage formed by the slot, and which then seal the latter.
• the mechanical behavior of the lids varies according to the materials that compose it.
• An aluminum cover as described in document JP-A-07 330009, has a systematic tendency to deform plastically, so that the cut part retains the configuration adopted under the effect of the pressure of the product which escapes. through the pouring orifice.
• a cover made from an aluminum sheet lined with a plastic sheet generally deforms elastically, so that the cut part tends to keep its original position, and to close off from it. makes the opening you want to make in the cover.
• the mere fact of making a cut in a cover of this type is not sufficient to make an opening therein allowing the pouring orifice to be completely released.
• the present invention relates to a pouring screw capsule which, while being of simple structure and of reduced cost, can be used for the closure of a container neck closed by a perforable cover, and allows, by means of simple manipulation, to practice in the cover an opening which completely clears the pouring orifice so as to allow direct distribution of the product contained in the container, without the flow of the product being hampered in any way, whatever the materials of which is composed the cover.
• the invention also relates to a pouring screw capsule offering a user, even an uninformed user, a better guarantee as to the state of the lid of the container neck (tamper-evident indicator).
• an object of the invention is a pouring screw cap for plugging a neck of a container closed until the first use by a perforable cover, comprising
• the opening thus formed includes the pouring orifice and allows direct flow of the product contained in the container through the pouring orifice.
• the tooth may have a T-shaped profile and include a curved wall with a concavity facing the axis of rotation.
• this wall has a surface arranged to press on the cover by applying a force to it in a direction forming an angle with a direction tangent to the trajectory at the level of the tooth.
• the tooth may include a stud projecting from the wall in the direction of the axis of rotation.
• the tooth is bevelled to form a point capable of perforating the cover.
• the pouring orifice is also eccentric, the tooth being eccentric on the same side as the pouring orifice.
• the tooth and the pouring orifice are eccentric so that their edges situated in front in the direction of screwing of the capsule on the neck are substantially on the same radius.
• the height of the tooth is preferably less than the pitch of the thread of the capsule body.
• the cover is never completely torn, but always remains attached to the neck of the container, without interfering with the distribution of the product through the pouring orifice.
• the capsule also comprises a tear-off guarantee ring extending the skirt of the body of the capsule to a height greater than the height of the tooth and bearing on a bearing surface of the container so as to maintain the tooth above the seal.
• This guarantee ring comprises for example means cooperating by snap-fastening with an external bead for attachment situated on the neck of the container between the thread and the said bearing surface.
• this guarantee ring made in one piece with the body of the capsule, allows the capsule to be screwed onto the container body until the guarantee ring is snapped onto the neck, which means that, unless the guarantee ring, which is clearly visible, the capsule is connected captively to the container, without risk of perforation of the cover.
• the user by purchasing the product packaged in the container closed by the capsule provided with its intact guarantee ring, thus has the assurance that the lid of the container is not pierced.
• the user tears off the guarantee strip and then screws the capsule fully onto the neck, which automatically causes the perforation and tearing of the seal, without the latter being able to interfere in any way. or the distribution of the product, coming to interfere with the pouring orifice.
• the capsule may include a cover connected by the hinge to the capsule body, for closing the pouring orifice of the capsule body.
• FIG. 1 is an axial section of a container neck closed with a perforable cover, and a closure cap screwed onto the coi, before destruction of the cover;
• FIG. 2 is a section according to Figure 1 after destruction of the cover
• FIG. 3 is a bottom view of the capsule according to Figures 1 and 2;
• FIGs 4a and 4b are schematic views taken from inside the container, showing, one the seal intact and the other the seal torn after screwing the capsule fully onto the neck of the container.
• a container 1 has a neck 2 provided with an external thread 3 and, below the latter, with an external attachment bead 4, the neck connecting to the container 1 by a shoulder 5 forming support surface.
• the neck 2 is closed at its upper end by a perforable cover 6 constituted for example by a membrane composed in a known manner of an aluminum foil lined with a plastic sheet.
• the capsule 7 comprises a capsule body 8, a tamper-evident ring 9 and a hinged cover 10.
• the capsule body 8 comprises a circular end wall 11 provided with a pouring orifice 12 surrounded by a pouring chimney 13, for example cylindrical, which projects upwards on the end wall 11.
• a substantially cylindrical skirt 14 projects downwards onto the end wall 11 on the edge of the latter, the skirt 14 having an internal thread 15 adapted to the thread 3 of the neck of the container 2.
• the capsule body 8 has a symmetry of revolution with respect to an axis R which, when the capsule 7 is attached to the neck 2, is substantially coincident with the main axis thereof. this.
• the axis R coincides with the axis of rotation of the capsule body 8 when it is screwed onto the neck 2 of the container 1.
• the capsule 7 is described in a position where the axis R is vertical, and defines a direction of elevation with respect to which the terms "top”, “bottom”, “upper”, “lower” are defined.
• a location near the R axis is said to be “interior”, as opposed to a location remote from the R axis, said to be “exterior”.
• a tooth 16 whose conformation and function will be described in more detail below, 0 protrudes downwards on the end wall 11, in the eccentric position.
• the skirt 14 is connected to an outer wall 17 which extends the body of the capsule 8 downwards in the form of a substantially cylindrical wall, and to an outer wall 18 which extends upwards, by surrounding the skirt 14 at a distance, 5 in the form of a wall of generally divergent frustoconical shape, substantially up to the level of the end wall 11 of the capsule body 8.
• the cover 10 is connected by a horizontal hinge 19 of a type known per se to the upper end of the outer wall 18.
• the cover 10 has, on its lower face 0, an annular flange 20 which, in the closed position of the cover 10, is fitted onto the chimney 13 of the pouring orifice 12.
• the tamper-evident ring 9 is connected to the lower end of the wall 17 by several frangible bridges 21, and internally has locking means 22 25 constituted, as shown above in FIG. 3, by a row of internal projections having a profile allowing them to snap irreversibly under the attachment bead 4 of the neck 2 of the container 1.
• the capsule can take two positions:
• the tooth 16 projecting from the end wall 11 of the capsule body 8 has a height h16 which is less than the pitch p of the threads 3 and 15 of the neck 2 and of the skirt 14.
• the guarantee ring 9 has a height h9 which is greater than the height h16 of the tooth 16.
• the height h2 of the neck 2, between the bearing surface 5 and the upper end of the neck, closed by the cover 6, is at least equal to the height h8 that the capsule body 8 has internally, between the end wall 11 and the lower end of the outer wall 17.
• the pouring orifice 12 is located in the eccentric position on the end wall 11 so that, the chimney 13 being for example cylindrical with an axis R1 substantially parallel to the axis R of the body 8, the axis R1 is spaced from the axis R.
• tooth 17, projecting downwards on the end wall 11, is distinct from the pouring orifice 12 and the chimney 13, being located at a distance from the orifice 12.
• the tooth 16 is located at a distance from the axis R.
• e16 the maximum distance separating the tooth 16 from the axis R
• e12 the maximum distance separating the edge of the pouring orifice 21 from the axis R.
• the distance separating the axis of rotation R of the tooth 16 is greater than the distance separating the axis of rotation R from the pouring orifice 12, so that the distance e16 is greater than the distance e12 (FIG. 3).
• the tooth 16 comprises a curved wall 24 which is in the form of a cylinder portion with an axis parallel to the axis R, and which has a concavity turned towards the inside of capsule 7.
• the wall has an outer face 25 intended, when the capsule 7 is screwed onto the neck 2, to press on the cover 6 by applying a force F oriented towards the outside of the capsule 7, to forcefully tear the cover 6.
• the tooth 16 may comprise a tenon 26 projecting from the wall 24 towards the inside of the capsule 7 by an inner face 27 opposite the outer face 25, so that the tooth 16 has a T profile in a plane horizontal cutting.
• This tenon 27 forms a means of reinforcing the wall 24 when the outer face is in abutment on the cover 6 and the wall is subjected to the reaction force of the cover, directed towards the inside of the capsule 7.
• the tooth 16 is bevelled to form a point 28 intended to facilitate the perforation of the cover prior to its tearing during the screwing of the capsule 7 on the neck 2 from container 1.
• the pouring orifice 12 and the tooth 16 are for example eccentric to the same side, so that their edges located forward in the direction of screwing (arrow V) of the capsule 7 on the neck 2 are substantially on the same radius ( Figure 3).
• the guarantee ring 9 and the cover 10 on the container neck 2 are snapped into place, by internal projections 22, under the bead attachment 4 of collar 2 before carrying by its lower end against the bearing surface 5 of the shoulder of the container 1.
• the outer face 25 of the tooth 16 pushes the cover 6 by applying a force F which causes it to tear, the tooth 16 pushing back in front of it the torn part of the cover 6 which, at the end of screwing, remains attached to the neck 2, no part of the cover 6 falling into the container 1.
• the tooth 16 is oriented so that its outer face 24 is not tangent to the path C but is inclined relative to the latter, so that the direction of the force F forms a non-zero angle ⁇ with the direction of the tangent T at path C.
• the tooth 16 which has a sufficient axial dimension, forces the latter to bend downward, to release an opening 29 in the form of a crescent or lunula.
• This opening 29 includes, in a horizontal plane, the pouring orifice 12 to allow barrier-free communication between the product contained in the container 1 and the pouring orifice 12, and to ensure a direct outlet of the product through the pouring orifice 12 ( Figure 4b).
• the user can then distribute the product through the orifice 12 (and the chimney 13) without the distribution being in any way hindered or disturbed by the seal 6 .
• the tooth 16 could, in the context of the invention, have a different profile, provided that this profile ensures a tearing of the lid rather than a cutting or slicing, and in particular allows the tooth to push back in front of it. torn part of the cover.
• the pouring orifice 12 could also be in the central position, or in an eccentric position different from that shown, although the illustrated reciprocal arrangement of the pouring orifice and the tooth provides optimal clearance of the pouring orifice by the lid with a reduced unscrewing angle of the capsule, after tearing off the guarantee strip.
• the capsule can be used in particular in the food sector, for example for sauces, condiments, etc.

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

Applications Claiming Priority (3)

Publications (2)

Family

ID=9546321

Family Applications (1)

Country Status (7)

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Family Cites Families (6)

• 1999
  • 1999-06-03 FR FR9907007A patent/FR2794435B1/fr not_active Expired - Fee Related
• 2000
  • 2000-06-02 WO PCT/FR2000/001532 patent/WO2000075034A1/fr active Search and Examination
  • 2000-06-02 AT AT00937004T patent/ATE238203T1/de not_active IP Right Cessation
  • 2000-06-02 EP EP00937004A patent/EP1181212B1/de not_active Expired - Lifetime
  • 2000-06-02 ES ES00937004T patent/ES2198318T3/es not_active Expired - Lifetime
  • 2000-06-02 AU AU52300/00A patent/AU5230000A/en not_active Abandoned
  • 2000-06-02 DE DE60002317T patent/DE60002317T2/de not_active Expired - Fee Related

Non-Patent Citations (1)

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