Wedge-Shaped Cosmetic Applicator With Figure-Eight Edge

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Solution Overview

Problem

Existing cosmetic applicators lack the ability to provide both precise and simple application of cosmetic materials while effectively structuring flock fibers, which affects the application's efficiency and aesthetic appeal.

Innovation Solution

A wedge-shaped applicator with a flock fiber coating featuring mirror-symmetrical flat surfaces and a figure-eight curve outer edge, allowing for easy pressing and structuring of flock fibers, and an indentation for increased cosmetic material capacity, facilitating adaptable and stable application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the carrier body has a simple shape, then the manufacturing is easier, but the applicator cannot provide both precise application and effective structuring of flock fibers

Engineering Contradiction:
Improvestructuring precision of flock fibersVSAvoidcarrier body shape complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The carrier body is divided into distinct functional zones: flat partial surfaces for structuring, curved partial surfaces for cosmetic material application, and a waisted central area. This segmentation allows each zone to perform its specific function optimally while maintaining overall manufacturing feasibility through moldable plastic construction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the carrier body are given different geometric properties: flat areas for pressing and structuring flock fibers, curved areas for adapting to facial contours, and a waisted central area for structural stability. This local differentiation of geometric quality enables the single carrier body to fulfill multiple functional requirements simultaneously.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If the carrier body has flat surfaces for structuring, then the flock fibers can be effectively structured, but the applicator may lack adaptability to facial contours

Engineering Contradiction:
Improvestructuring capability of flock fibersVSAvoidadaptability to facial contours
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The carrier body combines symmetric flat partial surfaces (for structuring) with asymmetric curved partial surfaces (for facial adaptation). The figure-eight outer edge creates an asymmetric overall shape that naturally conforms to facial contours, while the symmetric flat areas provide stable zones for flock fiber structuring. This combination resolves the contradiction between structuring capability and facial adaptability.

Inventive Principle:
Principle #4Asymmetry

3Adaptability or versatility

If the outer edge is straight, then the manufacturing is simpler, but the applicator cannot adapt well to the contour of the face

Engineering Contradiction:
Improveadaptability to facial contoursVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The carrier body employs curved outer edges forming a figure-eight shape with arcuate end areas, replacing straight edges. This curvature enables the applicator to adapt to facial contours while remaining manufacturable through standard plastic molding processes, which can easily produce complex curved geometries. The curvature is integrated into the overall wedge-shaped design without requiring additional manufacturing steps.

Inventive Principle:
Principle #14Spheroidality (Curvature)

4Manufacturing precision

If the flat partial surface area is large, then more flock fibers can be structured, but the applicator may become less stable

Engineering Contradiction:
Improvearea for flock fiber structuringVSAvoidapplicator stability
Core Design Contradiction:
Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The carrier body incorporates a waisted central area that creates a three-dimensional structural feature, adding vertical dimensionality to the design. This waisted portion provides structural stability and rigidity, while the flat partial surfaces extend laterally to provide sufficient area for flock fiber structuring. The dimensional variation resolves the contradiction between surface area for structuring and overall stability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3300625B1Applicator for applying cosmetic material
Publication Date: 2018.12.12 RUSI COSMETIC
  • EP3300625B1 patent drawingFigure 1~3
  • EP3300625B1 patent drawingFigure 4~6

AI summary

The invention relates to an applicator (1) for applying cosmetic material with a wedge-shaped carrier body (2) which is provided with a coating (3) of flock fibers, wherein the carrier body (2) has a front (5), a back (6) and two side surfaces (7); the front (5) and the back (6) each have a flat partial surface (8); the flat partial surfaces (8) are mirror-symmetrical to each other; and the two partial surfaces (8) each have an outer edge in the form of a figure-eight curve.