Applicator device for applying a product of the fluid or pasty type to keratin fibres
View Patent ↗The present invention relates to an applicator device for applying a product of the fluid or pasty type to keratin fibres, comprising a central core ( 1 ) having an elongate shape which extends along a longitudinal axis XX, at least one row of elongate spikes ( 2 ) comprising a first end ( 20 ) embedded in the core and a second, free end ( 21 ). According to the invention, at least one of the spikes ( 2 ) is delimited by a first flat face ( 200 ) that is coincident with a longitudinal plane, known as the reference plane P, and by a second flat face ( 210 ) that forms an angle of between 10 and 180° with said first flat face, said at least one spike comprising a first region ( 22 ) that is embedded in the core ( 1 ) and has a substantially constant cross section in the form of a portion of a circle, and a second region ( 23 ) having a variable cross section that is situated substantially in the longitudinal continuation of said first region ( 22 ).
1. An applicator device for a product of the fluid or viscous type on keratin fibres, comprising an elongate-shaped central core ( 1 ) that extends along a longitudinal axis XX, at least one row of a plurality of elongate spikes ( 2 ) being integrally formed with the core ( 1 ), each elongate spike ( 2 ) comprising a first region ( 22 ) having a first end ( 20 ) located on the core and a second free end ( 21 ), a first flat face ( 200 ) coincident with a longitudinal plane of the device, called reference plane P and that extends radially relative to said central core ( 1 ) and through the longitudinal axis XX, and by a second flat face ( 210 ) forming with said first flat face ( 200 ) an angle of 45° or 90°, the first flat face intersecting with the second flat face along a line that extends through the reference plane P, the first region comprising a substantially constant cross-section in the form of a portion of a circle, each elongate spike further comprising a second region ( 23 ) with a variable cross-section extending from said first region ( 22 ) to the second free end ( 21 ), the first flat face and the second flat face being disposed within the second region ( 23 ), wherein the plurality of spikes comprises at least two spikes arranged adjacent to one another and oriented at 180° with respect to one another so as to be disposed at opposite sides from one another with respect to the reference plane P to create at least one distal first opening ( 230 ; 236 ) between them.
2. A device according to claim 1 , wherein that the two spikes ( 2 ) of the at least one row of a plurality of elongate spikes create a second opening ( 235 ) between them adjacent to the at least one distal first opening.
3. A device according to claim 2 , wherein the distal first opening and the second opening are distinct or communicating.
4. A device according to claim 1 , wherein said distal first opening ( 236 ) is open towards the free end of each of the two spikes of the at least one row of a plurality of elongate spikes.
5. A device according to claim 1 , wherein a distance measured along the longitudinal axis XX between the at least two spikes of the plurality of elongate spikes is less than approximately 2 mm.
6. A device according to claim 1 , wherein a surface connecting the first flat face and the second flat face defines the second region, and the second region of each spike of the at least one row of a plurality of elongated spikes extends from the first region to the second free end in a succession of concave and convex curvatures.
7. A device according to claim 1 , wherein a surface connecting the first flat face and the second flat face defines the second region, the second region of each spike of the at least one row of a plurality of elongate spikes extends from the first region to the second free end along a convex curvature, and at least one protrusion extends from the convex curvature.
8. A device according to claim 1 , wherein a portion of the first flat face is wider than other portions of the first flat face so that a bulge is formed in the second region of each spike of the at least one row of a plurality of elongate spikes ( 2 ) and at least one protrusion ( 24 ) extends from the bulge.