CONNECTION SYSTEM FOR COVERS

Description

[0001] The present invention refers to a connection system for screwable covers.

[0002] Several applications are known, in which an external shell is placed as closure of a container containing therein a particularly viscous and/or sugar-type fluid, in such a way as to cause a gluing of such cover onto the screwing neck of such container. If, as known in the art, such screwable covers are composed of an external shell and an internal counter-cover, the above gluing, upon unscrewing the cover, could cause the detachment between the external shell and the counter-cover preventing a correct opening of the container.

[0003] A non-limiting example of the above application is given by bottles of nail enamel.

[0004] In fact, classical brushes are known in the art, adapted to allow applying on the nails a fluid product, such as an enamel or a drug, contained inside a related bottle, such brush being usually integral with the external shell of the bottle itself in such a way that at least its bristles remain immersed in the fluid when such cover is screwed onto such bottle.

[0005] Generally, the brush is connected to the external shell, by interposing the stem, by means of an undercut snap-type hook or through screwing: examples of such connections are also disclosed in GB918901, EP1733644, EP2123187, EP1504691, DE10229693, US2002090249, WO8804148. Such coupling solution however still has the problem a that the sealing cone arranged around the stem gets glued onto the bottle neck, detaching the brush from the cover when this latter one is unscrewed.

[0006] Obviosuly, similar problems are present in any other container containing fluids with the same features, such as fruit juices, beverages, etc.

[0007] Object of the present invention is solving the above prior art problems, by providing a connection system for covers that prevents the accidental detachment of the external shell from the counter-cover when unscrewing the cover itself.

[0008] The above and other objects and advantages of the invention, as will appear from the following description, are obtained with a connection system for covers as claimed in claim 1.

[0009] Documents WO-A-2010 065998, EP-A-0 746 992 and EP-A-1 504 691 disclose the features in the preamble of claim 1.

[0010] Preferred embodiments and non-trivial variations of the present invention are the subject matter of the dependent claims.

[0011] It is clear that all enclosed claims are an integral part of the present description.

[0012] It will be immediately obvious that numerous variations and modifications (for example related to shape, sizes, arrangements and parts with equivalent functionality) could be made to what is described, without departing from the scope of the invention, as appears from the enclosed claims.

[0013] The present invention will be better described by some preferred embodiments thereof, provided as a non-limiting example, with reference to the enclosed drawings, in which:

• Figure 1a shows a side sectional view of the connection system for covers according to the present invention;
• Figure 1b shows an enlarged view of a detail of the connection system for covers according to the present invention contained in box A of Figure 1a; and
• Figure 2 shows a sectional plan view of the coupling of Figure 1a between the counter-cover and the external shell of the connecting system according to the present invention.

[0014] With reference to the Figures, it is possible to note that the connecting system according to the present invention comprises at least one screwable cover 1 composed of at least one external shell 5 and at least one counter-cover 3 adapted to be connected to such shell 5, such shell 5 being equipped with screwing-type connecting means 6 to corresponding means arranged around a neck of a container.

[0015] Advantageously, such counter-cover 3 is equipped, on its perimeter and externally, with a plurality of first radially arranged engaging teeth 9 and such external shell 5 is equipped with at least one seat for inserting 11 such counter-cover 3, such seat 11 being equipped on its perimeter with a shape corresponding to the shape of such counter-cover 3. Consequently, such seat 11 is equipped, on its perimeter and internally, with a plurality of second radially arranged engaging teeth 13 having complementary shapes with such first engaging teeth 9. Still more preferably, such first 9 and second 13 engaging teeth are made with a profile with sawteeth arranged with opposite orientations: in particular, the slanted side of the sawteeth profile of the first engaging teeth 9 is oriented along an opposite direction with respect to the unscrewing direction V of the external shell 5 of the bottle, in such a way as to prevent uncoupling and detaching between counter-cover 3 and seat 11, also in case of gluing of the counter-cover 3 to the container neck.

[0016] Moreover, in order to prevent the counter-cover 3 from being withdrawn from the seat 11, such counter-cover 3 and such seat 11 can be engaged one into the other by interposing interference-type connecting means: in particular, such means can comprise at least one rib 17 arranged on its perimeter around such seat 11, and at least one corresponding groove 19 arranged on its perimeter around such counter-cover 3, such groove 19 being adapted to house therein such rib 17.

[0017] In the particular and example case shown in the Figures, the connecting system according to the present invention is applied to a brush for applying onto the nails fluid products such as drugs or cosmetics, having at least one application end for such product, such end being for example composed of one or a plurality of blades or bristles (not shown), connected to the counter-cover 3 for connecting to the external shell 5 for the screwable closure of the bottle (not shown) containing the fluid product, possibly by interposing at least one stem 7.

[0018] The sawteeth profile of the engaging teeth 9, 13 therefore prevents the uncoupling and the detachment between counter-cover 3 and seat 11 when unscrewing the cover 1, also in case of gluing of the sealing cone 15 arranged around the stem 7 to the bottle neck.

Claims

1. Connection system for screwable covers comprising at least one screwable cover (1) for closing a bottle containing a fluid product, said cover (1) being composed of at least one counter-cover (3) and of at least one external shell (5), said counter-cover being adapted to be connected to such shell (5), said counter-cover (3) being equipped, on its perimeter and externally, with a plurality of first radially arranged engaging teeth (9), said external shell (5) being equipped with at least one seat (11) for inserting said counter-cover (3), characterised in that said seat (11) is equipped, on its perimeter and internally, with a plurality of second radially arranged engaging teeth (13) having complementary shapes with said first engaging teeth (9).

2. Connecting system according to claim 1, characterised in that said first (9) and said second (13) engaging teeth are made as a profile with sawteeth arranged with opposite orientations, a slanted side of said sawteeth profile of said first engaging teeth (9) being oriented along an opposite direction with respect to an unscrewing direction (V) of said external shell (5).

3. Connecting system according to claim 1, characterised in that said counter-cover (3) and said seat (11) are engaged one inside the other by interposing interference-type connecting means.

4. Connecting system according to claim 3, characterised in that said means comprise at least one rib (17) arranged on its perimeter around said seat (11) and at least one corresponding groove (19) arranged on its perimeter around said counter-cover (3), said groove (19) being adapted to house therein said rib (17).

Ansprüche

1. Verbindungssystem für Schraubdeckel mit mindestens einem Schraubdeckel (1) zum Verschließen eines Fläschchens, das ein flüssiges Produkt enthält, der genannte Deckel (1) besteht aus mindestens einem Gegendeckel (3) und aus mindestens einer externen Hülle (5), der genannte Gegendeckel dient dazu, mit der entsprechenden Hülle (5) verbunden zu werden, der genannte Gegendeckel (3) ist am Umfang und außen mit mehreren ersten Spannzähnen (9) ausgestattet, die radial angeordnet sind, die genannte externe Hülle (5) ist mit mindestens einer Aufnahme (11) für den Einsatz des genannten Gegendeckels (3) ausgestattet, und ist dadurch gekennzeichnet, dass die genannte Aufnahme (11) am Umfang und innen mit mehreren zweiten Spannzähnen (13) ausgestattet ist, die radial angeordnet sind und komplementäre Formen zu den ersten Spannzähnen (9) haben.

2. Verbindungssystem gemäß Patentanspruch 1, das dadurch gekennzeichnet ist, dass die genannten ersten (9) und die genannten zweiten (13) Spannzähne mit einem Sägezahnprofil hergestellt und mit entgegen gesetzten Ausrichtungen angeordnet sind, eine Schrägseite des genannten Sägezahnprofils der genannten ersten Spannzähne (9) ist in die entgegen gesetzte Richtung zu einer Abschraubrichtung (V) der genannten externen Hülle (5) gerichtet.

3. Verbindungssystem gemäß Patentanspruch 1, das dadurch gekennzeichnet ist, dass der genannte Gegendeckel (3) und die genannte Aufnahme (11) ineinander durch Dazwischenlegen von Eingriffsverbindungsvorrichtungen eingespannt werden.

4. Verbindungssystem gemäß Patentanspruch 3, das dadurch gekennzeichnet ist, dass die genannten Vorrichtungen mindestens eine Rippe (17) einschließen, die am Umfang im Bereich der genannten Aufnahme (11) angeordnet ist, und mindestens eine entsprechende Rille (19), die am Umfang im Bereich des genannten Gegendeckels (3) angeordnet ist, die genannte Rille (19) dient dazu, die genannte Rippe (17) aufzunehmen.

Revendications

1. Système de connexion pour couvercles à vis comprenant au moins un couvercle à vis (1) de fermeture d'un flacon contenant un produit fluide, ce couvercle (1) étant composé au moins d'un contre-couvercle (3) et au moins d'une coquille extérieure (5) ; ce contre-couvercle étant en mesure d'être relié à la coquille (5) ; le contre-couvercle (3) est doté sur son périmètre et à l'extérieur d'une pluralité de premières dents d'engagement (9) disposées radialement ; la coquille extérieure (5) est dotée au moins d'un logement (11) d'insertion du contre-couvercle (3), caractérisé en ce que le logement (11) est doté sur son périmètre et à l'extérieur d'une pluralité de secondes dents d'engagement (13) disposées radialement ayant des formes complémentaires aux premières dents d'engagement (9).

2. Système de connexion, selon la revendication 1, caractérisé en ce que les premières (9) et les secondes (13) dents d'engagement sont réalisées avec un profilé en dents de scie, disposées avec des orientations opposées, un côté incliné de ce profilé à dents de scie des premières dents d'engagement (9) est tourné dans le sens opposé au sens de vissage (V) de la coquille extérieure (5).

3. Système de connexion, selon la revendication 1, caractérisé en ce que le contre-couvercle (3) et le logement (11) sont encastrés l'un à l'intérieur de l'autre par l'interposition de moyens de connexion à interférence.

4. Système de connexion, selon la revendication 3, caractérisé en ce que ces moyens comprennent au moins une nervure (17) disposée de manière périmétrique autour du logement (11) et au moins une rainure (19) disposée de manière périmétrique autour du contre-couvercle (3), cette rainure (19) pouvant accueillir la nervure (17).

Drawing