Massage Chair Driver Rotation Discs for Limb Acupuncture Point Targeting
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Solution Overview
Problem
Conventional massage chairs are unable to effectively massage acupuncture points on the palms and arms, and their complex structures often result in inefficient massage mechanisms with long lag times and limited massage areas per second, leading to a disconnect between massaging mechanisms and reduced user experience.
Innovation Solution
A massager with an armrest featuring multiple air bags and a driver mechanism comprising a protective shell, rotation discs with massage protrusions, and a transmission system powered by a motor, allowing for independent operation and adjustable air inflation to target acupuncture points on the arms, palms, and forearms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional air bag massage mechanism is used, then the structure is simple, but the massage technique is single and cannot massage acupuncture points
Solution Approach 1:
The patent combines two different massage mechanisms (air bag inflation/deflation and driver rotation disc kneading) into one integrated system. The driver with rotation discs provides mechanical kneading and pressing actions that can target acupuncture points, while air bags provide supplementary pressure, creating a comprehensive massage solution that addresses both structural simplicity and massage versatility requirements
Solution Approach 2:
The driver mechanism is designed to perform multiple massage functions through its rotation discs with different massage protrusions. The system can massage various body parts (upper limbs, palms, forearms) using different techniques (kneading, pressing, rolling) by adjusting the rotation discs' positions and rotation speeds, making the device universally applicable for different massage needs without requiring separate dedicated mechanisms
2Ease of operation
If double eccentric arm airbag structure with wave-shaped eccentric rollers is used, then the massage experience is close to real human hand, but the structure is complicated and the first and last wave-shaped eccentric rollers will have a long time lag during movement
Solution Approach 1:
The driver is divided into multiple independent rotation discs, each capable of rotating independently with its own massage protrusions. This segmentation allows each rotation disc to directly contact and massage the user's body without the long mechanical transmission chain found in wave-shaped eccentric roller systems, eliminating the time lag problem while maintaining the natural massage feel
Solution Approach 2:
The rotation discs act as intermediaries between the drive source and the user's body. Instead of using complex wave-shaped eccentric rollers that require long mechanical linkages, the rotation discs directly transfer the driving force to the massage protrusions that contact the user, significantly reducing the time lag and structural complexity while preserving the natural massage experience
3Adaptability or versatility
If double eccentric arm airbag structure with multiple air bags is used, then the structure is complicated, but multiple air bags are needed to press the limb muscles in a circular motion
Solution Approach 1:
The patent merges the functions of multiple air bags with the mechanical action of rotation discs. The air bags provide distributed pressure across large muscle areas, while the rotation discs provide focused mechanical kneading and pressing. This combination allows the system to cover multiple massage areas effectively without requiring a complex array of air bags for each specific massage point
Solution Approach 2:
The driver incorporates multiple rotation discs that can be independently controlled, each targeting specific massage areas. This segmentation of the mechanical massage function allows different parts of the user's body to be massaged simultaneously by different rotation discs, providing comprehensive coverage without the need for numerous air bags
Data Source
AI summary
A massager for massaging limbs contains: an armrest including two accommodation cavities configured to receive two arms of a user, multiple air bags arranged on a top of a respective one accommodation cavity, and a driver fixed on a bottom of the respective one accommodation cavity. The driver includes a protective shell disposed on the armrest, at least one rotation disc arranged on the protective shell, a drive source, and a transmission mechanism. The drive source is connected with the at least one rotation disc via the transmission mechanism, and a respective one rotation disc includes multiple massage protrusions located outside the protective shell.