Applicator manufactured in one piece with interleaved bristles

Abstract

Cosmetics applicator 1, in particular, having the form of a mascara applicator with a cap 3 forming a grip area 2 for tight closing of a cosmetics reservoir, which as one piece turns into a shaft 4 protruding from it which shaft 4, in turn, as one piece forms a handle segment 5 and a bristle-carrying segment 6 with the bristle-carrying segment 6 as such having a hollow structure and supporting injected bristles 7 which are integrally connected with a plastic core 8 covering or filling the inside of the bristle-carrying segment 6 through the wall of the bristle-carrying segment 6 with the cap 3 and the shaft 4 preferably consisting of a different plastic material than the plastic core 8 and the bristles 7.

1 . A mascara applicator, comprising:
 a cap forming a grip area for tight sealing of a cosmetics reservoir, which turns into a shaft protruding from the cap as one piece which, in turn, in one piece forms a handle segment and a bristle-carrying segment, with the bristle-carrying segment having a hollow interior structure and carrying injected bristles which are integrally connected through a wall of the bristle-carrying segment with a plastic core covering or filling an inside of the bristle-carrying segment, wherein the cap and the shaft consist of a different plastic material than the plastic core and the bristles.   
     
     
         2 . The mascara applicator according to  claim 1 , wherein a cavity of the bristle-carrying segment is open towards an outside on a face side of the bristle-carrying segment facing away from the cap. 
     
     
         3 . The mascara applicator according to  claim 1 , wherein the bristle-carrying segment has an essentially constant wall thickness of ≦0.3 mm and and the handle has a wall thickness of ≦2.25 mm in its hollow segment. 
     
     
         4 . The mascara applicator according to  claim 2 , wherein the handle segment is at least partly hollow and has a separating segment which closely separates its cavity from the cavity of the bristle-carrying segment. 
     
     
         5 . The mascara applicator according to  claim 1 , wherein the handle segment is solid on its end facing the bristle-carrying segment along a separating segment which accounts for approximately ⅕ to ½ of its total length. 
     
     
         6 . The mascara applicator according to  claim 1 , wherein a wall thickness of the bristle-carrying segment increases immediately before a transition from the bristle-carrying segment to the handle segment, in such a way that a wall thickness of the bristle-carrying segment increases towards the inside. 
     
     
         7 . The mascara applicator according to  claim 1 , wherein the shaft is consistently hollow on an inside and forms a duct via which a plastic compound which is injected for the purpose of manufacturing the bristles can flow into an area of the cap, up to an area of an outer circumference of the cap. 
     
     
         8 . The mascara applicator according to  claim 1 , wherein an outer diameter (OH) of the handle segment or of a sleeve surrounding the handle segment is essentially or consistently bigger than an outer diameter (OB) of the bristle-carrying segment with the OH/OB ratio being ≦0.8. 
     
     
         9 . The mascara applicator according to  claim 1 , wherein the cap is executed without a thread and designed in such a way that the cap is fastened for a tight seat of the mascara applicator on the cosmetics reservoir and/or that the cap can positively lock in place on the cosmetics reservoir. 
     
     
         10 . The mascara applicator according to  claim 1 , wherein on the cap a fastening element on a cap side is provided for which is decided as an external thread. 
     
     
         11 . The mascara applicator according to  claim 1 , wherein a fastening element is provided on the cap to form an applicator quick release fastener together with a corresponding fastening element on the reservoir side, and the applicator quick release fastener is designed as a bayonet coupling or as a multi-start short thread and dimensioned so that the fastening element on the cap side and on the reservoir side can be transferred from a fully closed position to a position in which these parts are no longer fastened in a direction of a longitudinal axis of the applicator by a rotation of ≦⅜ of a turn. 
     
     
         12 . The mascara applicator according to  claim 11 , wherein the short thread is a steep thread with a gradient μ of more than 5°. 
     
     
         13 . The mascara applicator according to  claim 11 , further comprising an additional holder that holds the fastening element on the cap side and the fastening element interacting with it on the container side together, in addition to the existing sliding friction, as soon as the fastening elements have reached their fully closed position with the additional holder being a catching edge which if travelled over makes a tongue connected on one side on the fastening element on the container spring out radially in order to slide into a catching recess in an area of the tongue afterwards. 
     
     
         14 . The mascara applicator according to  claim 1 , wherein a major part of the cap is formed by ribs protruding radially from a joint centre all around or by a number of ribs which are essentially positioned next to each other in parallel. 
     
     
         15 . The mascara applicator according to  claim 14 , wherein, on its end facing the bristles, the cap ends in a solid plate which as one piece moves into the shaft on one face side, while the cap moves into the ribs on its other face side. 
     
     
         16 . The mascara applicator according to  claim 1 , wherein, on a side facing away from the bristles, the handle segment turns into a plate which essentially extends in a radial direction as one piece, which plate, in turn, turns into the cap as one piece. 
     
     
         17 . The mascara applicator according to  claim 1 , wherein the cap has a shape of a tube open on both face sides which forms an operating area directly accessible for a final consumer on its external circumference with the tube having an essentially constant wall thickness. 
     
     
         18 . The mascara applicator according to  claim 16 , wherein the plate has an opening connecting a cavity of the handle segment with a subsequent cavity surrounded by the cap in a direction of a circumference. 
     
     
         19 . The mascara applicator according to  claim 16 , wherein the plate follows the segment of the handle segment which has a bigger outside diameter as against the rest of the handle segment which is dimensioned so that the plate lies flat against an inner circumference of a scraper if the applicator is fully inserted into the reservoir. 
     
     
         20 . A cosmetics unit consisting of a cosmetics reservoir and the mascara applicator according to  claim 1 , wherein the cosmetics reservoir comprises a fastening element with a thread worked into a hollow cylindrical segment of the fastening element in such a manner that the two threads fully penetrate the wall of the hollow cylindrical segment in a radial direction, thereby each forming a “window” in the wall of the hollow cylindrical segment.