Rotatable Control Surface for Mascara Applicator Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrically driven mascara applicators can be accidentally activated, leading to unintended power drainage, and users are unclear about the motions or functions when turning them on, necessitating a solution to prevent unintended operation and inform users of available motion options.
Innovation Solution
A cosmetic applicator with a handle featuring a rotatable or movable control surface at the proximal end, allowing users to select and control the motion, speed, and direction of the applicator head through various positions, including locked, paused, and operational states, preventing accidental activation and providing intuitive operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the applicator is made electrically driven to automate the application process, then productivity is improved, but the applicator may be accidentally activated causing energy loss
Solution Approach 1:
The applicator is designed with a default locked state that requires deliberate user action to activate. The control surface must be intentionally rotated or manipulated to change from the locked default state to an operational state, preventing accidental activation while maintaining ease of intentional use.
2Device complexity
If the applicator head is fixed to the handle, then device complexity is reduced, but adaptability is limited
Solution Approach 1:
The applicator head is designed to be dynamically controllable through the control surface, allowing it to perform multiple functions (rotation, oscillation, vibration) and operate at variable speeds. This transforms a static fixed structure into a dynamically adjustable system without adding mechanical complexity, as the drive system is electronically controlled.
3Ease of operation
If the control surface is placed at the proximal end of the handle, then ease of operation is improved, but the handle length is reduced
Solution Approach 1:
The control surface is positioned at the proximal end of the handle, utilizing the longitudinal dimension of the handle rather than adding controls laterally. This allows the control surface to be easily accessible to the user's thumb or finger while maintaining the full length of the handle for comfortable gripping and application.
4Adaptability or versatility
If multiple control surfaces are provided, then adaptability is improved, but device complexity increases
Solution Approach 1:
A single control surface is designed to perform multiple functions by accepting different rotation directions, speeds, and patterns. The same control surface can enable forward rotation, reverse rotation, oscillation, and vibration modes, eliminating the need for separate controls for each function and reducing overall device complexity.
Data Source
AI summary
A cosmetic applicator comprising a handle having a proximal end and a distal end, wherein the handle comprises a drive; an applicator head operatively associated with the drive to move at least part of the applicator head relative to the handle; and a control surface disposed at the proximal end of the handle and operatively associated with the drive. The control surface may be rotatable about a control surface axis through a plurality of positions and the control surface axis may be aligned with the longitudinal axis of the handle. The control surface may be moveable through a plurality of positions. The applicator may comprise an additional control surface, such as a second control surface or temporary control surface, which may be operated independently or in combination with the first control surface.