US20150050063A1

US20150050063A1 - Nailbrush

Info

Publication number: US20150050063A1
Application number: US14/377,486
Authority: US
Inventors: Bruno Rossi
Original assignee: Bisio Progetti SpA
Current assignee: Bisio Progetti SpA
Priority date: 2012-02-09
Filing date: 2013-02-06
Publication date: 2015-02-19
Also published as: WO2013118157A1; ITTO20120109A1; WO2013118157A9; EP2811859A1

Abstract

A brush (1) is described, in particular for applying fluid products on nails such as drugs or cosmetics, comprising at least one plurality of flexible blades (3), such blades (3) of a first plurality being mutually radially arranged along at least one first circular perimeter (C), such blades (3) being radially surrounded by at least one perimeter containing rib (5).

Description

The present invention refers to an improved nailbrush.
Classical brushes are known in the art, which 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 its screwable cover so that at least its bristles remain immersed into the fluid when such cover screwed onto such bottle.
In order to allow the most accurate distribution of the fluid product onto the nail surface or, in the particular case of a drug, even only along its contour, the prior art brushes are generally composed of a plurality of bristles seamed inside a joining stem to the cover. Examples of such brushes are disclosed in JP2000270927, JP11244040, EP0379692, JP10295440, EP1050235, CN1257679, JP9252836, JP6014812, U.S. Pat. No. 4,998,315. Such known brushes however has still some problems: in fact, they do not guarantee enough regularity and autonomy in dispensing the product, compelling a user to immerse it many times into bottle in order to impregnate it with the fluid product even many times for the same nail, making the application operation for such product long and uncomfortable. Moreover, it can happen that, during the bottle transport, the bristles remain bent, making afterwards the accurate product application still less practical if not ultimately impossible.
Moreover, generally, the brush is connected to the screwable cover, by interposing the stem, due to an undercut snap-type hook or by screwing: examples of such connections are also disclosed in GB918901, EP1733644, EP2123187, EP1504691, DE10229693, U.S. 2002090249, WO8804148. Such coupling solution however has till the problem 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.
Documents U.S.-A1-2011/170936, DE-C1-40 30 382 e U.S.-A1-2006/185107 disclose brushes according to the preamble of claim 1.
Object of the present invention is solving the above prior art problems by providing an improved nailbrush in which the traditional bristles are replaced by plastic flexible blades.
Moreover, an object of the present invention is providing an improved nailbrush in which the accidental bending of the blades is prevented, in particular during its transport.
Another object of the present invention is providing an improved nailbrush that improves distribution regularity and autonomy of the product on a nail with respect to what is proposed by the prior art.
Moreover, an object of the present invention is providing an improved nailbrush equipped with a coupling with the screwable cover of its related bottle that prevents its accidental detachment when unscrewing this latter one.
The above and other objects and advantages of the invention, as will appear from the following description, are obtained with an improved nailbrush as claimed in claim 1.
Preferred embodiments and non-trivial variations of the present invention are the subject matter of the dependent claims.
It is clear that all enclosed claims are an integral part of the present description.
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.

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:

FIG. 1 a shows a perspective view of a preferred embodiment of the improved nailbrush according to the present invention;

FIG. 1 b shows an enlarged view of a detail of the improved nailbrush according to the present invention contained in circle A in FIG. 1 a;

FIG. 2 a shows a side sectional view of the improved nailbrush of FIG. 1 a;

FIG. 2 b shows an enlarged view of a detail of the improved nailbrush according to the present invention contained in circle B in FIG. 2 a;

FIG. 2 c shows a plan view of the improved nailbrush of FIG. 2 b;

FIG. 3 a shows a side sectional view of the improved nailbrush according to the present invention connected to a screwable cover;

FIG. 3 b shows an enlarged view of a detail of the improved nailbrush according to the present invention contained in box B in FIG. 3 a; and

FIG. 4 shows a plant sectional view of the coupling of FIG. 3 a between the brush according to the present invention and the screwable cover.

With reference to the Figures, it is possible to note that the brush 1, in particular for applying on nails fluid products such as drugs or cosmetics, comprises at least one plurality of flexible blades 3, such blades 3 of a first plurality being mutually radially arranged along at least one first circular perimeter (like the one, shown in FIG. 2 c, enclosed in the first circular crown C′ defined by the related dashed circles), such blades 3 being radially surrounded by at least one perimeter containing rib 5: it can be noted how, advantageously, the presence of the perimeter containing rib 5 keeps the blades 3 straight and mutually aligned, preventing, contrary to what happens in prior art brushes, the accidental bending of the blades 3 themselves, in particular during the transport of their related bottle.
Preferably, such perimeter containing rib 5 is circular, annular and arranged externally to such first circular perimeter of such blades 3: in particular, such perimeter containing rib 5 is coaxial with such first circular perimeter of such blades 3.
Preferably, such blades 3 are, in their rest position, substantially rectilinear and parallel to a longitudinal axis R-R of such brush 1. Similarly, such first circular perimeter C′ and such perimeter containing rib 5 are coaxial with such longitudinal axis R-R.
Advantageously, the brush 1 according to the present invention comprises at least one second plurality of such blades 3, such blades 3 being radially arranged along at least one second circular perimeter (like the one shown, in detail, in FIG. 2 c enclosed in the second circular crown C″ defined by the related dashed circles): preferably, such second circular perimeter C″ is internal and concentric to the first circular perimeter C′.
Similarly to what is described above, also such second circular perimeter C″ is preferably coaxial with such longitudinal axis R-R.
Obviously, the interspaces occurring between the blades 3 are used, similarly to what occurs with traditional brushes with bristles, as tank for keeping the fluid product to be dispensed, such tank obviously having sizes that are substantially greater than those defined by the interspaces occurring between the many bristles known, and therefore being adapted to guarantee better regularity and autonomy when dispensing the product and to allow the user to dip the brush 1 according to the present invention less times in a bottle to dispense a same amount of fluid product.
Obviously, each one of such blades 3 can be made of any suitable material adequate for this purpose, such as for example a plastic material, having enough flexibility.
Preferably, in order to fafilitate the application accuracy of the fluid product on a nail, each one of such blades 3 has its own free end 3′ having a tapered and beleved shape.
Moreover, the brush 1 according to the present invention is connected to a connecting base 7 for a screwable cover 9 for closing a bottle (not shown) containing the fluid product, possibly by interposing at least one stem 11.
In particular, such base 7 is equipped, on its perimeter and externally, with a plurality of first radially arranged engaging teeth 13 and such screwable cover 9 is equipped with at least one seat 8 for inserting such base 7, such seat 8 being equipped on its perimeter with a shape corresponding to the shape of such base 7. Consequently, such seat 8 is equipped, on its perimeter and internally, with a plurality of second radially arranged engaging teeth 15 having complementary shapes to such first engaging teeth 13. Still more preferably, such first 13 and second engaging teeth are made with a profile with sawteeth arranged with different orientations: in particular, the slanted side of the sawteeth profile of the first engaging teeth 13 is oriented in an opposite direction with respect to the unscrewing direction V of the screwable cover 9 of the bottle, in such a way as to prevent uncoupling and detaching between base 7 and seat 8, and consequently between brush 1 and cover 9, also in case of gluing of the sealing cone 16 arranged around the stem 11 to the bottle neck.
Moreover, in order to prevent the base 7 from being withdrawn from the seat 8, such base 7 and such seat 8 can be engaged one inside 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 8 and at least one corresponding groove 19 arranged on its perimeter around such base 7, such groove 19 being adapted to house therein such rib 17.

Claims

1-12. (canceled)

13. A brush for applying fluid products on nails such as drugs or cosmetics, comprising a first plurality of flexible blades, the blades of the first plurality being mutually radially arranged along at least one first circular perimeter, wherein the blades are radially surrounded by at least one perimeter ring-shaped rib placed next to the end of the blades in contact with the fluid products.

14. The brush of claim 13, wherein the perimeter ring-shaped rib is circular, annular and arranged externally to the first circular perimeter of the blades.

15. The brush of claim 13, wherein the perimeter ring-shaped rib is coaxial with the first circular perimeter of the blades.

16. The brush of claim 13, wherein the blades are, in their rest position, substantially rectilinear and parallel with a longitudinal axis of the brush and the first circular perimeter and the perimeter ring-shaped rib are coaxial with the longitudinal axis.

17. The brush of claim 13, comprising at least one second plurality of blades, the blades of the second plurality being radially arranged along at least one second circular perimeter.

18. The brush of claim 17, wherein the second circular perimeter is internal and concentric to the first circular perimeter.

19. The brush of claim 13, wherein each one of the blades has its own free end having a tapered or beveled shape.

20. The brush of claim 13, further comprising a connecting base, the connecting base allowing a connection to a screwable cover for closing a bottle containing the fluid product, possibly by interposing at least one stem.

21. The brush of claim 20, wherein the base is equipped, on its perimeter and externally, with a plurality of first engaging teeth which are radially arranged, and wherein the screwable cover is equipped with at least one seat for inserting the base, the seat being equipped, on its perimeter and internally, with a plurality of second engaging teeth which are radially arranged, having complementary shapes to the first engaging teeth.

22. The brush of claim 21, wherein the first and the second engaging teeth are made as a profile with sawteeth arranged with opposite orientations, a slanted side of the sawteeth profile of the first engaging teeth being oriented in an opposite direction with respect to an unscrewing direction of the screwable cover.

23. The brush of claim 21, wherein the base and the seat are engaged one into the other by interposing interference-type connecting means.

24. The brush of claim 23, wherein the connecting means comprise at least one rib arranged on its perimeter around the seat and at least one corresponding groove arranged on its perimeter around the base, the groove being adapted to house therein the rib.