EP0378488B1 - Dispenser for viscous products having a central cap opened by turning it - Google Patents

Dispenser for viscous products having a central cap opened by turning it Download PDF

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Publication number
EP0378488B1
EP0378488B1 EP90420008A EP90420008A EP0378488B1 EP 0378488 B1 EP0378488 B1 EP 0378488B1 EP 90420008 A EP90420008 A EP 90420008A EP 90420008 A EP90420008 A EP 90420008A EP 0378488 B1 EP0378488 B1 EP 0378488B1
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EP
European Patent Office
Prior art keywords
cap
head
skirt
neck
dispenser
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.)
Expired - Lifetime
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EP90420008A
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German (de)
French (fr)
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EP0378488A1 (en
Inventor
Bernard Schneider
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.)
Albea Tubes France SAS
Original Assignee
Cebal SAS
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Publication date
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Publication of EP0378488A1 publication Critical patent/EP0378488A1/en
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    • 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

Definitions

  • the invention relates to a creamy or pasty product dispenser comprising a rigid head fixed to a body or a skirt as well as a cover, this head and this cover comprising complementary means for raising and lowering this cover by rotation of said cover, this cover carrying a central opening and the head having an upper end comprising an orifice for the passage of the product as well as a plug carried by oblique tabs of lower ends fixed inside said passage, said plug closing said central opening of the cover in the lower position of this cover, the cover comprising an internal skirt which is inserted with tight tightening inside said upper end of the head.
  • the upper end of its head consists of a ring or neck of a container capped with a valve cap having in its center an outlet passage for the contained product, precisely a liquid, and a spike held by blades oblique radials in the middle of said passage.
  • the descent of the cover, the central opening of which is then closed off by the pin, as well as its lifting are controlled by the interaction of notches or lugs of the valve cap and internal ramps of the cover.
  • the distribution of product through the outlet passage and along the spike is liable to give product overflows when the central opening of the hood is closed.
  • the seal between head and cover or lateral seal of the product passage is achieved by two concentric skirts of the valve cap, one bearing against the seal skirt of the cover and the other bearing against the interior of the container ring or neck.
  • the double sealing used causes friction and poor sealing, the two sealing means being able to contradict each other.
  • the recessed ramps of the hood thin its side wall, giving appearance defects in decoration.
  • the sliding of the notches or lugs in the ramps has a certain play, increasing with the wear of the lugs and resulting in poor guidance of the cover.
  • the Applicant has sought to develop a distributor of creamy or pasty product of the above type, giving a distribution without overflowing of product at closure with an improved seal between head and cover and preferably remedying the other drawbacks mentioned.
  • the oblique tabs supporting the plug are then fixed directly on the inside of said neck, sufficiently below its upper end so as to allow all of its cylindrical inner surface to be released, serving to engage the internal sealing skirt of the hood.
  • This very airy arrangement results in particular from the high ratio between the maximum diameter of passage of the product between the oblique legs, that is to say at their lower ends, and the diameter of outlet of the product through said central opening of the cover, ratio usually from 1.7 to 3.5 and preferably from 2 to 3, and it makes it possible to dispense creams and pastes with viscosity ranging from 100 to 100,000 cP (100 to 100,000 mPa. s).
  • the position of the attachment of the oblique legs inside the neck plays an essential role here for the astonishing distribution results obtained.
  • these means of ascent consist of a pitch of male screw with several (n) threads offset circumferentially by 2 ⁇ / n carried by the outside of the head and in a female thread complementary to said (n) threads carried by the inside of a skirt of the intermediate cover between said internal skirt ensuring the seal and the external skirt of the cover.
  • the position of this female screw thread thus gives no visible trace from the outside of the cover.
  • n 3
  • the inlet spacing of the threads corresponds to their circumferential spacing of 2 ⁇ / n, or 120 ° for 3 threads, and at a step giving an opening-closing distance of the cover usually less than 1 turn and preferably between 1/3 and 1/4 of a turn, a so-called "quick" step is typically between 8 and 12 mm / turn. This inlet spacing allows easy engagement of the threads by the corresponding hood threads.
  • This intermediate skirt of the hood which ensures the attachment and axial displacement of the cover by the cooperation of its female thread, usually hollow with the male thread of the head, is advantageously provided with an internal rib in relief, situated above the hollow threads, the end of the head being -Even provided with a shoulder or outer rim under which said rib abuts, thus achieving the stop in the upper position of the cover or open position in the normal operation of the dispenser.
  • the same rib and outer rim can be used as a means of security for the introduction of the cover or against its involuntary removal, the rib having a rounded lateral surface and the rim of the head having an oblique lateral surface opposite this rounded surface, these two surfaces carrying out an engagement with forcing of the cover on the head, followed by screwing the ratchet carrying out the locking of the top position of the stop rib of the cover under the external rim of the head.
  • the forcing in question corresponds to a tightening typically chosen between 0.05 and 0.25 mm to the radius, preferably between 0.08 and 0.15 mm to the radius. It is noted that then the engagement of the hood by passing this forcing is difficult for a young child, and that its disengagement, requiring the release of the stop rib of the hood, is then almost impossible.
  • the frustoconical lateral surface of the plug has an equal or slightly greater total cone angle (at most 10 °) so as to obtain good embedding and blocking of this plug in the opening carrying out the end of the descent of the hood and the sealed closing of its opening or orifice.
  • the cover usually includes an outer skirt, only decorative. For questions of appearance and general behavior of the container, it preferably engages around a substantially cylindrical portion of the bottom of the head, for example with a play of 0.1 to 0.3 mm in diameter. This engagement can be used to make a dispenser opening indicator, in the form of a decoration, for example a coloring of said cylindrical portion, which is unmasked by unscrewing the hood from rising, and masked by its descent.
  • This outer skirt then improves the retention of the cover in the axis already arising from the interlocking with tightening of the internal skirt of the cover inside the head, and means of axial displacement of the cover.
  • the plastic head can be fixed to the body or to the skirt by overmolding, the body or the skirt themselves being made of plastic or metalloplastic (externally made of plastic).
  • the head fixed on the body or on the skirt can also be produced in a single molding operation.
  • the distributor of the invention has the following main advantages: simplicity of the device, excellent sealing, very good guiding of the cover, particularly in the case of 3 to 5 offset threads, without degradation of this guiding during use.
  • the dispenser of the invention is used in the pharmaceutical, cosmetological, hygienic and food fields.
  • the device according to the invention comprises a distributor head 1 and a cover 2.
  • the head 1 is made of high density polyethylene 1 mm thick, molded onto a skirt of medium density PE, 0.5 mm thick.
  • the cover is made of PP (polypropylene) molded, 1.25 mm thick at the location of its outer skirt.
  • the head 1 comprises a disc or frustoconical plug 3, carried by three oblique supports 4 connected inside the neck 5, and of "transverse" width, that is to say in a direction perpendicular to an axial plane passing through the tab 4 considered, equal to 1.5 mm.
  • This neck 5 has an internal cylindrical end surface 6. It is bordered at its upper part by an outer rim 7, comprising an upper chamfer 8.
  • the external surface of the neck 5 carries three threads 9 of rectangular section, arranged at 120 ° one another.
  • the lower part of the head 1 is constituted by a cylindrical portion 10, connected to the upper part by a flared tapered portion 11.
  • the pad 3, the supports 4 and the neck 5 define wide passages 12 through which the product escapes pasty or creamy content in the container during use.
  • the ventilated arrangement of the supports 4 allows the product to drop freely when the orifice 14 is closed by the patch 3, thus avoiding untimely outflows of product from overpressures linked to internal throttles, outlets which are observed with known devices.
  • the cover 2 comprises an upper cover 13, provided with a frustoconical opening 14, similar to the patch 3.
  • the cover has three internal skirts 15, intermediate 16 and external 17.
  • the internal skirt has an external cylindrical surface 18 which forcibly rests inside the end surface 6 of the neck 5 providing an excellent seal.
  • the intermediate skirt 16 has on its internal surface a female screw pitch 19 corresponding to the threads 9, which is surmounted by a circular stop ring 20, of substantially semi-circular section.
  • the external skirt 17 has an internal lower surface 21, which is interlocked with a clearance around the external surface of the envelope 10.
  • the outlet diameter of the orifice 14 is here 5 mm, and the product passage diameter at the bottom of the supports 4 is 14 mm, the corresponding passage diameter / product outlet diameter ratio therefore being 2 , 8.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Confectionery (AREA)
  • Specific Conveyance Elements (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

The dispenser for viscous products comprises a head (1) fixed to a body (100) or skirt (100) and a cap (2), this head (1) and this cap (2) comprising additional means (9, 19) of raising this cap (2) by the rotation of the said cap (2), this cap (2) having a central opening (14) and the head (1) comprising a stopper (3) carried by oblique lugs (4) fixed to the inside (5) of the head (1) and blocking this opening (14) in the low position of the cap (2), the head (1) and the cap (2) carrying additional sealing means (6, 15), characterised in that: a) the said sealing means consist of an internal skirt (15) of the cap (2) which inserts itself with a tightening action into the upper end of the head (1); b) and c) the oblique lugs (4) are fixed directly to the inside of the head (1), sufficiently low to liberate the engagement of the said internal skirt (15) in the head (1) during the operating of the cap (2). This dispenser is used in the pharmaceutical, cosmetic, hygiene and food fields. <IMAGE>

Description

L'invention concerne un distributeur de produit crémeux ou pâteux comportant une tête rigide fixée sur un corps ou une jupe ainsi qu'un capot, cette tête et ce capot comportant des moyens complémentaires de montée et de descente de ce capot par rotation dudit capot, ce capot portant une ouverture centrale et la tête ayant une extrémité supérieure comportant un orifice de passage du produit ainsi qu'un bouchon porté par des pattes obliques d'extrémités inférieures fixées à l'intérieur dudit passage, ledit bouchon venant obturer ladite ouverture centrale du capot en position basse de ce capot, le capot comprenant une jupe interne qui s'insère avec serrage étanche à l'intérieur de ladite extrémité supérieure de la tête.The invention relates to a creamy or pasty product dispenser comprising a rigid head fixed to a body or a skirt as well as a cover, this head and this cover comprising complementary means for raising and lowering this cover by rotation of said cover, this cover carrying a central opening and the head having an upper end comprising an orifice for the passage of the product as well as a plug carried by oblique tabs of lower ends fixed inside said passage, said plug closing said central opening of the cover in the lower position of this cover, the cover comprising an internal skirt which is inserted with tight tightening inside said upper end of the head.

La demande de brevet FR-A 2 574 377 (= US-A-4 690 304) décrit un distributeur de ce type. L'extrémité supérieure de sa tête consiste en une bague ou goulot d'un récipient coiffé(e) d'une capsule-clapet ayant en son centre un passage de sortie du produit contenu, précisément un liquide, et un picot maintenu par des lames radiales obliques au milieu dudit passage. La descente du capot dont l'ouverture centrale est alors obturée par le picot ainsi que son soulèvement sont commandés par l'interaction de crans ou ergots de la capsule-clapet et de rampes internes du capot. La distribution de produit par le passage de sortie et le long du picot est susceptible de donner des débordements de produits à la fermeture de l'ouverture centrale du capot. Et l'étanchéité entre tête et capot ou étanchéité latérale du passage de produit est réalisée par deux jupes concentriques de la capsule-clapet, l'une portant contre la jupe d'étanchéité du capot et l'autre portant contre l'intérieur de la bague ou goulot du récipient. La double étanchéité utilisée entraîne des frottements et une étanchéité médiocre, les deux moyens d'étanchéité pouvant se contrarier. Par ailleurs, les rampes en creux du capot amincissent sa paroi latérale, donnant des défauts d'aspect en décoration. En outre, le coulissement des crans ou ergots dans les rampes présente un certain jeu, s'accentuant avec l'usure des ergots et se traduisant par un guidage médiocre du capot.Patent application FR-A 2,574,377 (= US-A-4,690,304) describes a dispenser of this type. The upper end of its head consists of a ring or neck of a container capped with a valve cap having in its center an outlet passage for the contained product, precisely a liquid, and a spike held by blades oblique radials in the middle of said passage. The descent of the cover, the central opening of which is then closed off by the pin, as well as its lifting are controlled by the interaction of notches or lugs of the valve cap and internal ramps of the cover. The distribution of product through the outlet passage and along the spike is liable to give product overflows when the central opening of the hood is closed. And the seal between head and cover or lateral seal of the product passage is achieved by two concentric skirts of the valve cap, one bearing against the seal skirt of the cover and the other bearing against the interior of the container ring or neck. The double sealing used causes friction and poor sealing, the two sealing means being able to contradict each other. Furthermore, the recessed ramps of the hood thin its side wall, giving appearance defects in decoration. In addition, the sliding of the notches or lugs in the ramps has a certain play, increasing with the wear of the lugs and resulting in poor guidance of the cover.

La demanderesse a cherché à mettre au point un distributeur de produit crémeux ou pâteux du type ci-dessus, donnant une distribution sans débordements de produit à la fermeture avec une étanchéité entre tête et capot améliorée et remédiant de préférence aux autres inconvénients signalés.The Applicant has sought to develop a distributor of creamy or pasty product of the above type, giving a distribution without overflowing of product at closure with an improved seal between head and cover and preferably remedying the other drawbacks mentioned.

L'invention a pour objet un distributeur de produit crémeux ou pâteux du type ci-dessus, caractérisé en ce que, selon l'invention :

  • a) l'extrémité supérieure de la tête consiste en un goulot, ladite jupe interne s'insérant directement contre la surface intérieure dudit goulot;
  • b) lesdites extrémités inférieures des pattes obliques sont directement fixées à ladite surface intérieure du goulot en-dessous du niveau inférieur de ladite jupe interne en ladite position basse du capot, et les extrémités supérieures de ces pattes fixée à la surface de dessous du bouchon et supportant ce bouchon sont situées au-dessus du goulot, lesdites pattes obliques définissant ainsi avec le goulot et le bouchon de larges passages par lesquels s'échappe ou retombe ledit produit crémeux ou pâteux lors de l'utilisation dudit distributeur.
The subject of the invention is a distributor of creamy or pasty product of the above type, characterized in that, according to the invention:
  • a) the upper end of the head consists of a neck, said internal skirt being inserted directly against the interior surface of said neck;
  • b) said lower ends of the oblique legs are directly fixed to said inner surface of the neck below the lower level of said inner skirt in said lower position of the cover, and the upper ends of these legs fixed to the surface of the bottom of the cap and supporting this plug are located above the neck, said oblique tabs thus defining with the neck and the plug wide passages through which escapes or drops said creamy or pasty product when using said dispenser.

Une fois le capot engagé sur la tête du distributeur, l'étanchéité est ainsi réalisée de façon permanente et sûre par le contact avec serrage, habituellement de 0,05 à 0,25 mm au diamètre et mieux de 0,10 à 0,20 mm au diamètre, de la jupe interne du capot avec la surface intérieure du goulot. La disposition inverse, c'est-à-dire l'emboîtage avec serrage d'une telle jupe interne du capot autour de l'extrémité supérieure du goulot, ne conviendrait pas pour une bonne étanchéité, le goulot étant plus rigide qu'une telle jupe interne. De plus, une telle disposition inverse empêcherait l'utilisation préférentielle de la jupe intermédiaire décrite plus loin comme moyen d'arrêt de la montée axiale du capot.Once the cover is engaged on the distributor head, sealing is thus achieved permanently and securely by tightening contact, usually from 0.05 to 0.25 mm in diameter and better still from 0.10 to 0.20 mm in diameter, from the internal skirt of the hood with the inside surface of the neck. The reverse arrangement, that is to say the fitting with tightening of such an internal skirt of the cover around the upper end of the neck, would not be suitable for good sealing, the neck being more rigid than such internal skirt. In addition, such a reverse arrangement would prevent the preferential use of the intermediate skirt described below as a means of stopping the axial rise of the cover.

Les pattes obliques supportant le bouchon sont alors fixées directement sur l'intérieur dudit goulot, suffisamment en-dessous de son extrémité supérieure de façon à laisser dégager toute sa surface intérieure cylindrique servant à l'engagement de la jupe interne d'étanchéité du capot. Avec ces pattes obliques longues et minces, habituellement au nombre de 3 à 5 et d'épaisseur transversale typiquement comprise entre 1 et 3 mm, on obtient une disposition très aérée favorisant le passage du produit vers l'ouverture de sortie et aussi son recul lors de la fermeture du capot, ce qui évite les débordements extérieurs de produit dûs à une compression lors de cette fermeture. Cette disposition très aérée résulte notamment du rapport élevé entre le diamètre maximal de passage du produit entre les pattes obliques, c'est-à-dire au niveau de leurs extrémités inférieures, et le diamètre de sortie du produit par ladite ouverture centrale du capot, rapport habituellement de 1,7 à 3,5 et de préférence de 2 à 3, et elle permet de distribuer facilement et sans débordement intempestif de produit des crèmes et pâtes de viscosité allant de 100 à 100 000 cP (100 à 100 000 mPa.s). La position de la fixation des pattes obliques à l'intérieur du goulot joue ici un rôle essentiel pour les résultats de distribution étonnants obtenus.The oblique tabs supporting the plug are then fixed directly on the inside of said neck, sufficiently below its upper end so as to allow all of its cylindrical inner surface to be released, serving to engage the internal sealing skirt of the hood. With these long and thin oblique legs, usually 3 to 5 in number and with a transverse thickness typically of between 1 and 3 mm, a very airy arrangement is obtained, favoring the passage of the product towards the outlet opening and also its recoil when the cover is closed, which prevents external product overflows due to compression during this closing. This very airy arrangement results in particular from the high ratio between the maximum diameter of passage of the product between the oblique legs, that is to say at their lower ends, and the diameter of outlet of the product through said central opening of the cover, ratio usually from 1.7 to 3.5 and preferably from 2 to 3, and it makes it possible to dispense creams and pastes with viscosity ranging from 100 to 100,000 cP (100 to 100,000 mPa. s). The position of the attachment of the oblique legs inside the neck plays an essential role here for the astonishing distribution results obtained.

Pour le bon guidage du capot et la facilité de l'engagement de ses moyens complémentaires de montée, il est préférable que ces moyens de montée consistent en un pas de vis mâle à plusieurs (n) filets décalés circonférentiellement de 2 π/n porté par l'extérieur de la tête et en un pas de vis femelle complémentaire desdits (n) filets porté par l'intérieur d'une jupe du capot intermédiaire entre ladite jupe interne assurant l'étanchéité et la jupe externe du capot. La position de ce pas de vis femelle ne donne ainsi aucune trace visible depuis l'extérieur du capot.For the correct guiding of the cover and the ease of engagement of its complementary means of ascent, it is preferable that these means of ascent consist of a pitch of male screw with several (n) threads offset circumferentially by 2 π / n carried by the outside of the head and in a female thread complementary to said (n) threads carried by the inside of a skirt of the intermediate cover between said internal skirt ensuring the seal and the external skirt of the cover. The position of this female screw thread thus gives no visible trace from the outside of the cover.

On a trouvé que dans le cas présent un nombre (n) de filets égal à 3 était particulièrement avantageux, la stabilité du capot pendant son mouvement de montée ou de descente étant toujours assurée, cela sans doute parce qu'il se produit à tout moment un équilibre entre trois petites zones de contact filet mâle/filet femelle correspondant correctement espacées. Si l'on s'écarte du système de guidage à 3 filets, on choisira ensuite par ordre de préférence 5 filets ou 4 filets. L'espacement d'entrée des filets, correspond à leur espacement circonférentiel de 2 π/n, soit de 120° pour 3 filets, et à un pas donnant une distance ouverture-fermeture du capot habituellement inférieure à 1 tour et de préférence comprise entre 1/3 et 1/4 de tour, un pas dit "rapide" étant typiquement compris entre 8 et 12 mm/tour. Cet espacement d'entrée permet un engagement facile des filetages par les filetages correspondants du capot.It has been found that in the present case a number (n) of threads equal to 3 is particularly advantageous, the stability of the cover during its up or down movement being always ensured, this undoubtedly because it occurs at any time a balance between three small zones of male thread / corresponding female thread properly spaced. If you deviate from the 3-thread guide system, you will then choose, in order of preference, 5 threads or 4 threads. The inlet spacing of the threads corresponds to their circumferential spacing of 2 π / n, or 120 ° for 3 threads, and at a step giving an opening-closing distance of the cover usually less than 1 turn and preferably between 1/3 and 1/4 of a turn, a so-called "quick" step is typically between 8 and 12 mm / turn. This inlet spacing allows easy engagement of the threads by the corresponding hood threads.

Cette jupe intermédiaire du capot qui assure l'accrochage et le déplacement axial du capot par la coopération de son filetage femelle habituellement en creux avec le filetage mâle de la tête, est avantageusement munie d'une nervure intérieure en relief, située au-dessus des filets en creux, l'extrémité de la tête étant elle-même munie d'un épaulement ou rebord extérieur sous lequel ladite nervure vient buter , réalisant ainsi l'arrêt en position haute du capot ou position d'ouverture dans le fonctionnement normal du distributeur.This intermediate skirt of the hood which ensures the attachment and axial displacement of the cover by the cooperation of its female thread, usually hollow with the male thread of the head, is advantageously provided with an internal rib in relief, situated above the hollow threads, the end of the head being -Even provided with a shoulder or outer rim under which said rib abuts, thus achieving the stop in the upper position of the cover or open position in the normal operation of the dispenser.

Les mêmes nervure et rebord extérieur peuvent servir de moyen de sécurité de l'introduction du capot ou contre son enlèvement involontaire, la nervure ayant une surface latérale arrondie et le rebord de la tête ayant une surface latérale oblique en regard de cette surface arrondie, ces deux surfaces réalisant un engagement avec forcement du capot sur la tête, suivi grâce au vissage de l'encliquetage réalisant le verrouillage de position haute de la nervure d'arrêt du capot sous le rebord extérieur de la tête.The same rib and outer rim can be used as a means of security for the introduction of the cover or against its involuntary removal, the rib having a rounded lateral surface and the rim of the head having an oblique lateral surface opposite this rounded surface, these two surfaces carrying out an engagement with forcing of the cover on the head, followed by screwing the ratchet carrying out the locking of the top position of the stop rib of the cover under the external rim of the head.

Le forcement en question correspond à un serrage typiquement choisi entre 0,05 et 0,25 mm au rayon, de préférence entre 0,08 et 0,15 mm au rayon. On constate qu'alors l'engagement du capot en passant ce forcement est difficile pour un jeune enfant, et que son désengagement, demandant le désencliquetage de la nervure d'arrêt du capot, est alors quasiment impossible.The forcing in question corresponds to a tightening typically chosen between 0.05 and 0.25 mm to the radius, preferably between 0.08 and 0.15 mm to the radius. It is noted that then the engagement of the hood by passing this forcing is difficult for a young child, and that its disengagement, requiring the release of the stop rib of the hood, is then almost impossible.

Lorsque l'ouverture centrale du capot a une surface latérale tronconique, la surface latérale tronconique du bouchon a un angle total de cône égal ou légèrement plus fort (d'au plus 10°) de façon à obtenir un bon encastrement et un blocage de ce bouchon dans l'ouverture réalisant la fin de descente du capot et la fermeture étanche de son ouverture ou orifice.When the central opening of the cover has a frustoconical lateral surface, the frustoconical lateral surface of the plug has an equal or slightly greater total cone angle (at most 10 °) so as to obtain good embedding and blocking of this plug in the opening carrying out the end of the descent of the hood and the sealed closing of its opening or orifice.

Le capot comporte habituellement une jupe extérieure, uniquement décorative. Pour des questions d'aspect et de tenue générale du récipient, elle s'engage de préférence autour d'une portion sensiblement cylindrique du bas de la tête, par exemple avec un jeu de 0,1 à 0,3 mm au diamètre. On peut se servir de cet engagement pour réaliser un témoin d'ouverture du distributeur, sous forme d'un décor, par exemple une coloration de ladite portion cylindrique, qui est démasqué par le dévissage de montée du capot, et masqué par sa descente. Cette jupe extérieure améliore alors le maintien du capot dans l'axe découlant déjà de l'emboîtement avec serrage de la jupe interne du capot à l'intérieur de la tête, et des moyens de déplacement axial du capot.The cover usually includes an outer skirt, only decorative. For questions of appearance and general behavior of the container, it preferably engages around a substantially cylindrical portion of the bottom of the head, for example with a play of 0.1 to 0.3 mm in diameter. This engagement can be used to make a dispenser opening indicator, in the form of a decoration, for example a coloring of said cylindrical portion, which is unmasked by unscrewing the hood from rising, and masked by its descent. This outer skirt then improves the retention of the cover in the axis already arising from the interlocking with tightening of the internal skirt of the cover inside the head, and means of axial displacement of the cover.

La tête en matière plastique peut être fixée sur le corps ou sur la jupe par surmoulage, le corps ou la jupe étant eux-mêmes en matière plastique ou métalloplastique (extérieurement en matière plastique). On peut encore réaliser en une seule opération de moulage la tête fixée sur le corps ou sur la jupe.The plastic head can be fixed to the body or to the skirt by overmolding, the body or the skirt themselves being made of plastic or metalloplastic (externally made of plastic). The head fixed on the body or on the skirt can also be produced in a single molding operation.

Par rapport au distributeur du brevet cité, le distributeur de l'invention présente les avantages principaux suivant : simplicité du dispositif, excellente étanchéité, très bon guidage du capot, particulièrement dans le cas de 3 à 5 filets décalés, sans dégradation de ce guidage au cours de l'utilisation.Compared to the distributor of the cited patent, the distributor of the invention has the following main advantages: simplicity of the device, excellent sealing, very good guiding of the cover, particularly in the case of 3 to 5 offset threads, without degradation of this guiding during use.

Le distributeur de l'invention est utilisé dans les domaines pharmaceutique, cosmétologique, hygiénique et alimentaire.The dispenser of the invention is used in the pharmaceutical, cosmetological, hygienic and food fields.

L'invention sera mieux comprise à l'aide de l'exemple suivant illustré par les figures ci-après :

  • . la figure 1 représente en 1/2 coupe axiale, à droite la position du capot lors de sa première mise en place, à gauche la position de fermeture.
  • . la figure 2 représente en 1/2 coupe axiale à gauche la même position de fermeture du capot, et en 1/2 coupe du capot et vue extérieure de la tête du distributeur à droite, le capot en position d'ouverture.
The invention will be better understood using the following example illustrated by the figures below:
  • . Figure 1 shows in 1/2 axial section, right the position of the cover when it is first put in place, left the closed position.
  • . FIG. 2 shows in 1/2 axial section on the left the same position for closing the cover, and in 1/2 section of the cover and external view of the distributor head on the right, the cover in the open position.

Le dispositif selon l'invention comprend une tête 1 de distributeur et un capot 2. La tête 1 est en polyéthylène haute densité d'épaisseur 1 mm, surmoulée sur une jupe en PE moyenne densité, d'épaisseur 0,5 mm. Le capot est en PP (polypropylène) moulé, d'épaisseur 1,25 mm à l'endroit de sa jupe extérieure. La tête 1 comporte une pastille ou bouchon tronconique 3, portée par trois supports obliques 4 raccordés à l'intérieur du goulot 5, et de largeur "transversale", c'est-à-dire selon une direction perpendiculaire à un plan axial passant par la patte 4 considérée, égale à 1,5 mm. Ce goulot 5 comporte une surface d'extrémité cylindrique interne 6. Elle est bordée à sa partie supérieure par un rebord extérieur 7, comportant un chanfrein supérieur 8. La surface externe du goulot 5 porte trois filets 9 de section rectangulaire, disposés à 120° les uns des autres. La partie inférieure de la tête 1 est constituée par une portion cylindrique 10, raccordée à la partie supérieure par une portion tronconique évasée 11. La pastille 3, les supports 4 et le goulot 5 délimitent de larges passages 12 par lesquels s'échappe le produit pâteux ou crémeux contenu dans le récipient lors de son utilisation.The device according to the invention comprises a distributor head 1 and a cover 2. The head 1 is made of high density polyethylene 1 mm thick, molded onto a skirt of medium density PE, 0.5 mm thick. The cover is made of PP (polypropylene) molded, 1.25 mm thick at the location of its outer skirt. The head 1 comprises a disc or frustoconical plug 3, carried by three oblique supports 4 connected inside the neck 5, and of "transverse" width, that is to say in a direction perpendicular to an axial plane passing through the tab 4 considered, equal to 1.5 mm. This neck 5 has an internal cylindrical end surface 6. It is bordered at its upper part by an outer rim 7, comprising an upper chamfer 8. The external surface of the neck 5 carries three threads 9 of rectangular section, arranged at 120 ° one another. The lower part of the head 1 is constituted by a cylindrical portion 10, connected to the upper part by a flared tapered portion 11. The pad 3, the supports 4 and the neck 5 define wide passages 12 through which the product escapes pasty or creamy content in the container during use.

La disposition aérée des supports 4 laisse retomber librement le produit lors de la fermeture de l'orifice 14 par la pastille 3, évitant alors des sorties intempestives de produit provenant de surpressions liées à des étranglements intérieurs, sorties qui sont constatées avec les dispositifs connus.The ventilated arrangement of the supports 4 allows the product to drop freely when the orifice 14 is closed by the patch 3, thus avoiding untimely outflows of product from overpressures linked to internal throttles, outlets which are observed with known devices.

Le capot 2 comporte un voile supérieur 13, muni d'une ouverture tronconique 14, analogue à la pastille 3. Le capot comporte trois jupes interne 15, intermédiaire 16 et externe 17.The cover 2 comprises an upper cover 13, provided with a frustoconical opening 14, similar to the patch 3. The cover has three internal skirts 15, intermediate 16 and external 17.

La jupe interne comporte une surface cylindrique externe 18 qui s'appuie avec forcement à l'intérieur de la surface d'extrémité 6 du goulot 5 réalisant une excellente étanchéité.
La jupe intermédiaire 16 comporte sur sa surface interne un pas de vis femelle 19 correspondant aux filets 9, lequel est surmonté d'un jonc d'arrêt circulaire 20, de section sensiblement semi-circulaire.
La jupe externe 17 comporte une surface inférieure interne 21, qui s'encastre avec un jeu autour de la surface externe de l'enveloppe 10.The internal skirt has an external cylindrical surface 18 which forcibly rests inside the end surface 6 of the neck 5 providing an excellent seal.
The intermediate skirt 16 has on its internal surface a female screw pitch 19 corresponding to the threads 9, which is surmounted by a circular stop ring 20, of substantially semi-circular section.
The external skirt 17 has an internal lower surface 21, which is interlocked with a clearance around the external surface of the envelope 10.

Le diamètre de sortie de l'orifice 14 est ici de 5 mm, et le diamètre de passage du produit au niveau du bas de supports 4 est de 14 mm, le rapport correspondant diamètre de passage/diamètre de sortie du produit étant donc de 2,8.The outlet diameter of the orifice 14 is here 5 mm, and the product passage diameter at the bottom of the supports 4 is 14 mm, the corresponding passage diameter / product outlet diameter ratio therefore being 2 , 8.

En position d'engagement (fig. 1 , à droite); le bouchon est engagé par translation, puis rotation "en vissant" dans la partie supérieure des filets 9. La poursuite du mouvement de rotation permet au jonc d'arrêt 20 de franchir l'épaulement 7 avec forcement, grâce au chanfrein 8. Le vissage peut être poursuivi jusqu'à fermeture complète de l'ouverture 14 (fig. 1, à gauche) par la pastille 3.
Lors du dévissage, l'ouverture 14 du bouchon est libérée et le bouchon est retenu en position haute par le jonc d'arrêt 20 qui s'appuie sur l'épaulement 7 (fig. 2, à droite). En forçant la rotation "en dévissant"à cet endroit, il est possible de désolidariser le bouchon 2 du corps du distributeur 1, mais ceci échappe à une utilisation normale du distributeur.In the engagement position (fig. 1, right); the plug is engaged by translation, then rotation "by screwing" in the upper part of the threads 9. The continuation of the movement of rotation allows the stop ring 20 to cross the shoulder 7 with forcing, thanks to the chamfer 8. The screwing can be continued until when the opening 14 is completely closed (fig. 1, left) by the pad 3.
When unscrewing, the opening 14 of the plug is released and the plug is retained in the high position by the retaining ring 20 which rests on the shoulder 7 (fig. 2, on the right). By forcing the rotation "by unscrewing" at this location, it is possible to separate the plug 2 from the body of the distributor 1, but this escapes normal use of the distributor.

Cette opération n'est pas utilisée lors de l'usage courant du distributeur, le capot n'étant mu qu'entre les positions de fermeture (fig. 2, à gauche) et d'ouverture (fig. 2, à droite).This operation is not used during normal use of the dispenser, the cover being moved only between the closed (fig. 2, left) and open (fig. 2, right) positions.

De nombreux essais de distributions et fermetures successives ont été faits avec des distributeurs selon l'exemple ci-dessus contenant une crème hydratante de viscosité 6000 cp. Il n'y a pas eu de débordement de crème à l'extérieur de l'orifice de sortie 14 contrairement à ce qui est observé avec les distributeurs connus.Numerous successive dispensing and closing tests were carried out with dispensers according to the example above containing a moisturizer with a viscosity of 6000 cp. There was no overflow of cream outside the outlet orifice 14 contrary to what is observed with known distributors.

Claims (8)

  1. A creamy or pasty product dispenser comprising a head (1) fixed on a body (100) or skirt (100) and a cap (2), the said head (1) and the said cap (2) comprising complementary means (9, 19) of raising and lowering the cap (2) by rotation of the said cap (2), said cap (2) comprising a central aperture (14), the head (1) comprising a top end (5) in which there is an orifice through which product can pass, and also a stopper (3) carried by sloping lugs(4) the bottom ends of which are fixed to the inside of the said passage, the said stopper (3) occluding the said central aperture (14) in the cap (2) when this latter is in the low position, the cap (2) comprising an inner skirt (15) which is inserted with a sealing-tight clamping effect into the interior of the said top end (5) of the head (1), characterised in that:
    a) the top end (5) of the head (1) consists of a neck (5), the said inner skirt (15) which is less rigid than the neck (5) fitting directly against the inner surface of the said neck (5);
    b) the said bottom ends of the sloping lugs (4) are fixed directly to the said inner surface of the neck (5) below the bottom level of the said inner skirt (15) in the said low position of the cap (2), and the top ends of these lugs (4) fixed to the under side of the stopper (3) and supporting the said stopper (3) are situated above the neck (5), the said sloping lugs (4) thus defining with the neck (5) and the stopper (3) wide passages through which the said creamy or pasty product escapes or falls back when the dispenser is in use.
  2. A dispenser according to claim 1, in which the ratio of the inside diameter of the neck of the level of the bottom ends of the sloping lugs (4) and the outlet diameter of the said central aperture (14) of the cap (2) is comprised between 2 and 3.5.
  3. A dispenser according to either of claims 1 or 2, in which the head (1) of plastics material is moulded in one single piece on the said body or the said skirt (100), said body or said skirt being of plastics or metalloplastics material.
  4. A dispenser according to either of claims 1 or 2, in which the said complementary means of raising and lowering the cap consist of a screwthread having three threads (9) offset circumferentially by 120° carried on the outside of the head (1) and a female screwthread (19) matching the said three threads (9) through the inside of the intermediate skirt (16) of the cap (2), the stability of the cap during its raising and lowering movements thus being ensured at all times.
  5. A dispenser according to any one of claims 1 to 4 in which the head (1) comprises at its end an outer rebate (7), the intermediate skirt (16) carrying on the inside an arresting rib (20) which abuts under the said rebate (7) when the cap (2) is in the high position.
  6. A dispenser according to claim 5 in which the said outer rebate (7) on the on the head (1) comprises a sloping lateral surface and in which the said arresting rib (20) on the cap (2) comprises a rounded lateral surface, the said two lateral surfaces ensuring forcible engagement of the cap (2) on the head (1) followed by a click engagement of the said rib (20) under the said outer rebate (7) on the head (1) at the commencement of screwing of the cap (2).
  7. A dispenser according to claim 6, in which the said outer rebate (7) on the head (1) and the said arresting rib (20) on the intermediate skirt (16) of the cap (2) create between them a clamping effect of 0.05 to 0.25 mm at the radius and preferably 0.08 to 0.15 mm at the radius.
  8. A dispenser according to claim 1, in which the cap (2) has an outer skirt (17) the bottom of which engages around a substantially cylindrical portion (10) of the head (1) in the position of closure, the said portion (10), which carries a decoration to show that the cap has been opened, being exposed by unscrewing of the cap (2).
EP90420008A 1989-01-06 1990-01-04 Dispenser for viscous products having a central cap opened by turning it Expired - Lifetime EP0378488B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8900292 1989-01-06
FR8900292 1989-01-06

Publications (2)

Publication Number Publication Date
EP0378488A1 EP0378488A1 (en) 1990-07-18
EP0378488B1 true EP0378488B1 (en) 1994-03-09

Family

ID=9377638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420008A Expired - Lifetime EP0378488B1 (en) 1989-01-06 1990-01-04 Dispenser for viscous products having a central cap opened by turning it

Country Status (12)

Country Link
EP (1) EP0378488B1 (en)
JP (1) JPH02233371A (en)
AT (1) ATE102569T1 (en)
CA (1) CA2007175C (en)
DE (1) DE69007131T2 (en)
DK (1) DK0378488T3 (en)
ES (1) ES2049954T3 (en)
FI (1) FI94118C (en)
IE (1) IE64266B1 (en)
IS (1) IS1579B (en)
NO (1) NO900045L (en)
PT (1) PT92787B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5199605A (en) * 1989-01-06 1993-04-06 Cebal Creamy or pasty product dispenser with a rotationally controlled aperture in the cap and with safety means against uncontrolled opening
DE4121249A1 (en) * 1991-06-27 1993-01-14 Alcina Cosmetic Dr Kurt Wolff Bottle cap with spout and seal - has sidewall opening forming outlet and sealing portion sliding axially
CH686245A5 (en) * 1992-05-04 1996-02-15 Createchnic Ag Central sealing plug.
EP0690008A3 (en) * 1994-07-01 1997-02-26 Duering Ag Threaded bottle closure
CN1091730C (en) 1996-11-25 2002-10-02 迪萨诺·玛格工业公司 Sealed closure cap
ES2152790B1 (en) * 1997-11-07 2001-08-16 Diseno Ind Mago S L PERFECTED HERMETIC PLUG.
KR20030078284A (en) * 2002-03-29 2003-10-08 김영호 Opening and shutting device for bottle cap
EP2431294B1 (en) * 2010-09-16 2012-11-07 DB Design GmbH Rotary closure for cosmetic containers
CN103171819B (en) * 2013-04-16 2015-11-25 葛兰素史克（中国）投资有限公司 Liquid feeder
US9359115B1 (en) * 2014-11-21 2016-06-07 Berlin Packaging, Llc Push pull container closure

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263851A (en) * 1964-05-14 1966-08-02 American Can Co Container closure
US3735905A (en) * 1971-01-25 1973-05-29 American Can Co Precision neck construction for center lock captive closure
JPS519550Y2 (en) * 1971-02-06 1976-03-13
DE2709665A1 (en) * 1977-03-05 1979-01-25 Henkel Kgaa Bottle cap with adjustable opening - has ring of holes around round tapering stopper which fits inside bottle neck
US4179052A (en) * 1977-09-16 1979-12-18 Lever Brothers Company Container cap
JPS5521935U (en) * 1978-07-31 1980-02-13
US4383623A (en) * 1981-03-17 1983-05-17 Ethyl Products Company Dispensing closure with stationary axial plug
FR2574377B1 (en) * 1984-12-07 1987-02-06 Morel Simone DEVICE FOR CLOSING A TUBE, BOTTLE OR OTHER CONTAINER WITH OPENING AND CLOSING CONTROLLED BY THE ROTATION OF THE OVERCAP
DE3571961D1 (en) * 1984-12-07 1989-09-07 Simone Morel Obturating device for tubes, flasks and other containers, the opening and closing of which are controlled by rotation
FR2600978B1 (en) * 1986-05-12 1990-06-08 Astra Plastique DISPENSING CAP WITH ROTATING CAP FOR PASTA PRODUCTS

Also Published As

Publication number Publication date
EP0378488A1 (en) 1990-07-18
IS1579B (en) 1995-06-08
PT92787A (en) 1990-07-31
IE900046L (en) 1990-07-06
PT92787B (en) 1996-01-31
NO900045D0 (en) 1990-01-05
DE69007131T2 (en) 1994-07-21
ATE102569T1 (en) 1994-03-15
IS3534A7 (en) 1990-07-07
JPH02233371A (en) 1990-09-14
IE64266B1 (en) 1995-07-26
CA2007175A1 (en) 1990-07-06
NO900045L (en) 1990-07-09
ES2049954T3 (en) 1994-05-01
DE69007131D1 (en) 1994-04-14
FI94118C (en) 1995-07-25
FI900076A (en) 1990-07-07
FI900076A0 (en) 1990-01-05
CA2007175C (en) 1997-06-10
DK0378488T3 (en) 1994-04-05
FI94118B (en) 1995-04-13

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