Movable Mascara Applicator Structure for Lash Separation
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Solution Overview
Problem
Existing mascara applicators lack flexibility and synchronization of movable parts, leading to imperfect application, clumping, and rigidity, while also being prone to clogging and failing to replicate professional make-up techniques effectively.
Innovation Solution
A cosmetic applicator design featuring a fixed portion with evenly distributed holes and a movable portion with protuberances that allow longitudinal and transverse movements, enhancing flexibility and synchronization, and includes a mechanical excitation mechanism for improved application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a movable portion is added to improve flexibility and application quality, then the application quality and flexibility are improved, but the device complexity increases
Solution Approach 1:
The applicator is divided into a fixed portion and a movable portion that can move independently relative to each other. The movable portion includes multiple protuberances that can move independently, allowing each element to be optimized for its specific function while maintaining overall system performance.
Solution Approach 2:
The applicator incorporates a movable portion that can dynamically adjust its position and orientation relative to the fixed portion during operation. This dynamic capability allows the protuberances to adapt to different eyelash configurations and application angles, improving application quality without requiring a completely complex mechanism.
2Manufacturing precision
If multiple movable parts are added to enable synchronized movement, then the application uniformity is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The fixed portion and movable portion are merged into a single integrated structure where the movable portion is formed as an integral part of the applicator body. This merging reduces the number of separate components and simplifies manufacturing while maintaining the synchronized movement capability of multiple protuberances through the shared structural framework.
Solution Approach 2:
The movable portion serves multiple functions simultaneously: it enables synchronized movement of multiple protuberances, provides flexibility in application angles, and maintains structural integrity. This multi-functionality reduces the need for additional separate mechanisms, thereby limiting the increase in device complexity.
3Manufacturing precision
If the applicator structure is made more complex to improve application quality, then the application quality improves, but the ease of manufacture decreases
Solution Approach 1:
The invention optimizes geometric parameters such as the size, shape, and distribution of protuberances on both the fixed and movable portions. By carefully selecting these parameters, the applicator achieves high application quality with a relatively simple structure that can be manufactured using conventional techniques, avoiding excessive complexity.
Solution Approach 2:
Different regions of the applicator are designed with locally optimized characteristics: the fixed portion provides stable product retention with its specific protuberance configuration, while the movable portion provides flexibility with its own optimized protuberance arrangement. This local quality optimization allows each region to perform its function efficiently without requiring the entire structure to be overly complex.
Data Source
AI summary
An applicator for a cosmetic product including a fixed portion having an elongated shape along a longitudinal axis defining a longitudinal direction. The fixed portion is hollow, so that it includes an elongated cavity, and it includes holes connecting the cavity and an exterior area. The applicator includes a movable portion in relation to the fixed portion, the movable portion including an elongated central core in the longitudinal direction and disposed in the cavity formed by the fixed portion. The movable portion includes protuberances, each protuberance passing through a hole of the fixed portion so that it protrudes outside of said fixed portion. The configuration of the protuberances and of the holes makes it possible to move at least longitudinally the movable portion in relation to the fixed portion. The applicator may be obtained by additive manufacturing.