Bendable Mascara Brush With Automatic Tilting Mechanism
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Solution Overview
Problem
Conventional mascara brushes with straight shafts obstruct the user's view when in use, causing inconvenience, especially when applying mascara to others.
Innovation Solution
A mascara brush with a joint between the brush shaft and main shaft, featuring a slant guiding surface that tilts the brush shaft when extended and a notch to securely hold it in place, allowing for reliable and steady usage without vibration or shattering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the brush shaft is made straight for structural simplicity, then the device complexity is reduced, but the user view is blocked during application
Solution Approach 1:
The brush shaft is designed with a bendable joint that allows it to dynamically change its configuration. When the main shaft is pushed forward, the brush shaft automatically tilts to the side through the slant guiding surface, then returns to straight position after use. This dynamic behavior resolves the contradiction by providing tilted position for better visibility during application while maintaining structural simplicity through automatic restoration.
Solution Approach 2:
The brush assembly is divided into separate components: the main shaft and the brush shaft connected by a bendable joint. This segmentation allows the brush shaft to be independently tilted relative to the main shaft through the slant guiding surface mechanism, enabling improved user view without complicating the overall structure.
2Ease of operation
If the brush shaft is tilted manually to improve visibility, then the user view is improved, but the operation complexity increases
Solution Approach 1:
The tilting mechanism is designed to be self-actuating. When the main shaft is pushed forward during normal use, the slant guiding surface automatically causes the brush shaft to tilt to the side without requiring any manual intervention. The system uses the existing motion of the main shaft to automatically achieve the tilted position, eliminating the need for separate tilting operations.
Solution Approach 2:
The slant guiding surface is pre-configured on the main shaft to automatically guide the brush shaft into a tilted position when the main shaft is pushed forward. This preliminary configuration ensures that the tilting action occurs automatically as part of the normal extension motion, without requiring additional user actions.
3Ease of operation
If the brush shaft is made flexible to tilt automatically, then the usability is improved, but the reliability during usage deteriorates
Solution Approach 1:
The brush shaft is designed with a bendable joint that provides dynamic behavior: it tilts automatically when the main shaft is pushed forward, then returns to a straight, stable position after use. This dynamic design ensures both automatic tilting for improved usability and reliability through automatic restoration to a stable configuration.
Solution Approach 2:
The potential harm of a flexible brush shaft that might vibrate or shatter is converted into a benefit by designing the bendable joint to automatically return to a straight position after tilting. The flexibility is harnessed to provide automatic tilting, while the restoration mechanism ensures stability and reliability during usage, transforming the potential weakness into a strength.
Data Source
AI summary
A bendable mascara brush which includes a container for storing mascara and a brush assembly plugging into the container. The brush assembly form a joint between a brush shaft and a main shaft. Then, a slant guiding surface is configured in front of the brush shaft and, as the brush shaft is pushed forward by the main shaft, a slant surface of the brush shaft engages the guiding surface, causing the brush shaft to tilt to a side at an angle and thereby avoiding the problem of blocking user view. Additionally, a notch is configured opposite to the guiding surface so that the tilted brush shaft is embedded into the notch and held reliably and steadily in its tilted configuration.