Vibrating Skin Cleansing Brush Head With Reduced Hand Vibration
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Solution Overview
Problem
Powered skin care devices with rotating, vibrating, or oscillating brushes are often too aggressive and transmit excessive vibrations to the user's hand, making them uncomfortable and less effective for gentle skin cleansing.
Innovation Solution
A powered skin care device with a vibration damper and soft bristles, featuring a resilient collar to reduce vibration transmission and a motorized vibratory mechanism generating gentle frequencies, combined with a brush head having varying bristle lengths and stiffness zones for tailored skin cleansing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a powered skin care device uses rotating, vibrating or oscillating brushes, then skin cleansing effectiveness is improved, but the device becomes too aggressive and transmits excessive vibrations to the user's hand
Solution Approach 1:
A vibration dampener is introduced as an intermediary component between the vibrating brush head and the handle. This dampener absorbs and reduces the vibrations generated by the motor, preventing excessive vibration transmission to the user's hand while maintaining the brush head's cleansing effectiveness
Solution Approach 2:
The vibration frequency and intensity parameters are optimized to provide gentle cleansing action. The motor is designed to operate at specific frequency ranges that achieve effective skin cleansing without generating excessive vibrations that would be harmful to the user's hand
2Productivity
If a powered skin care device uses rotating, vibrating or oscillating brushes, then skin cleansing effectiveness is improved, but the device becomes too aggressive for gentle skin cleansing
Solution Approach 1:
The brush head incorporates bristles with varying lengths, stiffness, and densities in different zones. This local quality variation allows different areas of the brush to be optimized for different skin types and areas, providing gentle cleansing where needed while maintaining effectiveness where required
Solution Approach 2:
The bristle parameters (length, stiffness, density) are carefully controlled and varied across different zones of the brush head. Softer, longer bristles are used in areas requiring gentler action, while stiffer, shorter bristles are used in areas benefiting from more vigorous cleansing
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides a gentler skin cleansing experience with reduced vibration and noise transmission to the hand, ensuring comfort and effective cleaning for different skin types and areas.
Implementation Method 1
A vibration damper is provided between a head supporting platform including a vibrating motor, and a handle of the device
Implementation Method 2
featuring a resilient collar to reduce vibration transmission
Data Source
AI summary
A powered skin care device is provided with a vibrating motor that produces vibrations in a relatively gentle frequency and has a removable brush head that includes at least two types of bristles. A first group of bristles is for more gentle cleansing and a second group of bristles is for more aggressive cleansing.