Massage Chair Armrest Covers for Adjustable Arm Compression
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Solution Overview
Problem
Existing massage chairs with armrest massage devices restrict arm resting positions, provide inconsistent massage due to fixed-width grooves, and offer weak upper arm massage, leading to user dissatisfaction.
Innovation Solution
A massage chair design featuring vertically displaceable covering members on armrests with expandable and shrinkable air bags as massaging devices, allowing adjustable armrest positioning and massage intensity, and detachable armrest sections for wider area massage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If standing walls are provided on armrests to provide massage function, then massage capability is improved, but arm resting freedom is restricted
Solution Approach 1:
The covering member is made movable between a closed state (providing unrestricted arm resting surface) and an opened state (providing massage function). This dynamic transformation allows the same structure to serve dual purposes: when closed, it offers a smooth surface for casual arm resting; when opened, it reveals the massaging device for therapeutic use.
Solution Approach 2:
The covering member serves multiple functions: it acts as both a protective cover and an operational component of the massaging device. The air bag embedded in the covering member provides massage function when exposed, while the covering member itself provides a resting surface when closed, eliminating the need for separate structures for each function.
2Device complexity
If fixed standing walls are used for massage, then device structure is simplified, but massage comfort varies with arm thickness
Solution Approach 1:
The air bag's volume and pressure parameters can be adjusted to accommodate different arm thicknesses. Unlike fixed standing walls with constant dimensions, the air bag can be inflated to different extents, allowing the massage force and contact area to be adapted to various user anatomies while maintaining a simple overall device structure.
3Device complexity
If standing walls define fixed grooves for massage, then device structure is simplified, but massage intensity is insufficient
Solution Approach 1:
The air bag utilizes pneumatic pressure to generate strong, controllable massage force. By injecting compressed air into the air bag, significant internal pressure is generated, enabling the air bag to exert strong outward force against the user's arm and hand, providing intense massage that overcomes the limitation of simple fixed groove structures.
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
Enables unrestricted arm resting when not massaged, provides customizable massage intensity, and allows for effective massage of upper arms, improving user comfort and chair mobility.
Implementation Method 1
capable of massaging the hands and arms of a human body through the expansion of air bags by means of compressed air
Data Source
AI summary
A massage chair has a seating surface, a backrest and armrests at the opposite left and right sides. A covering member vertically displaceable to be opened and closed is provided on the upper surface of an armrest main body of each armrest. A massaging device is provided on at least either one of the lower surface of each covering member and the upper surface of the corresponding armrest main body. The massaging devices are driven with hands and arms tightly held between the lower surfaces of the covering members and the upper surfaces of the armrest main bodies, and the upper surfaces of the covering member serve as arm resting surfaces with the covering members closed and the massaging means not driven. There can be provided a massage chair whose arm resting positions are not restricted when the massage chair is not used to massage the hands and arms.