Mascara Brush Ball-Joint Pivot for Ergonomic Application
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Solution Overview
Problem
Conventional mascara applicators are uncomfortable to use due to a straight handle and brush arrangement, leading to unstable makeup application postures and limited angular adjustments, which hinder efficient mascara application.
Innovation Solution
A cosmetic applicator with a ball-joint connection allowing the applicator region to pivot up to 90° and adjust to various angles around the axis, facilitated by a stopper and socket mechanism with radial symmetry, enabling ergonomic and stable positioning of the brush for efficient application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle and brush are arranged in a straight line, then the structure is simple, but the user must raise their arm to shoulder height causing unstable posture and poor makeup application
Solution Approach 1:
The brush is made movable relative to the handle through a ball joint connection, allowing the brush to pivot and rotate to various angles. This dynamic adjustment capability enables the user to position the brush ergonomically without raising the arm to shoulder height, thereby improving posture stability while maintaining structural simplicity
Solution Approach 2:
The brush is enabled to move not only in angle adjustment but also in rotational movement around the handle axis (360°). This multi-dimensional movement capability provides the user with flexible positioning options to achieve comfortable and stable makeup application posture
2Adaptability or versatility
If the brush is fixed at a specific angle, then the structure is simple, but the user cannot adjust to desired angles for efficient application
Solution Approach 1:
The ball joint connection enables the brush to pivot freely and be adjusted to any desired angle relative to the handle. This dynamic adjustment mechanism provides adaptability for different application needs while maintaining a relatively simple structural design
Solution Approach 2:
In addition to angular adjustment, the brush can rotate 360° around the handle axis, providing multi-directional adaptability. This enhances the versatility of the applicator without significantly increasing device complexity
3Stability of the object's composition
If the brush can pivot at a desired angle, then the adaptability is improved, but the brush cannot be stably positioned for efficient mascara application
Solution Approach 1:
The buffer element automatically engages with the ball joint mechanism to provide stabilization when the brush is positioned at a desired angle. This self-service feature allows the brush to maintain its position stably during mascara application without requiring additional active control mechanisms, thus preserving adaptability while adding stability
4Ease of operation
If the brush mobility is increased for smooth adjustment, then the ease of operation is improved, but the brush may become unstable during application
Solution Approach 1:
The buffer element provides automatic stabilization that engages when the brush reaches a desired position. This allows smooth and easy adjustment during the positioning phase while providing automatic stability once the brush is in the application position, resolving the contradiction between mobility and stability
Data Source
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AI summary
A cosmetic applicator comprises a grip, a holder shaft that extends from the grip, the holder shaft comprising a longitudinal axis, an applicator region, one end of the applicator region being connected to a ball stud, and a buffer element that is disposed inside the holder shaft and is in contact with one end of the ball stud. The applicator region pivots at a desired angle of up to 90 around the longitudinal axis, and is adjusted to any desired angles and any directions off the longitudinal axis. The ball stud is connected to the holder shaft. The holder shaft comprises an eye which acts as a socket for the ball stud to fit securely into and allows adjustments to be made in any direction.