Massage chair
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing massage chairs are limited in their ability to drive the human body to perform continuous overall movement and massage, as their structure primarily focuses on seat-based massage functions.
Innovation Solution
A massage chair design incorporating a driving device with a base plate, connecting frame, up-and-down vibration device, and four-bar linkage device, which allows for overall up-and-down vibration and stable seat support, enabling continuous body movement and massage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the massage chair structure focuses only on seat-based massage functions, then the seat can provide localized massage, but the chair cannot drive the human body to perform continuous overall movement and massage
Solution Approach 1:
The massage chair is divided into functional modules: the seat for localized massage, the connecting frame for structural support, and the driving device for overall movement. This segmentation allows each component to perform its specific function while contributing to the overall capability of full-body movement and massage.
Solution Approach 2:
The connecting frame serves multiple functions: it supports the seat, connects the driving device, and enables overall body movement. The driving device not only provides vibration but also drives the four-bar linkage mechanism to achieve coordinated movement across different parts of the chair, making the system multi-functional.
2Duration of action of moving object
If the up-and-down vibration device is added to drive overall movement, then continuous body movement and massage are enabled, but the device complexity increases
Solution Approach 1:
The up-and-down vibration device generates periodic vibrations that are transmitted through the connecting frame to drive the four-bar linkage mechanism. This periodic action enables continuous rhythmic movement of the seat and footrest, achieving sustained full-body massage without requiring complex control systems.
Solution Approach 2:
The connecting frame acts as an intermediary that transmits the vibration from the up-and-down vibration device to the four-bar linkage mechanism. This intermediary component simplifies the overall system by providing a direct mechanical transmission path, reducing the need for additional complex control mechanisms.
3Stability of the object's composition
If the four-bar linkage device is used to support the seat stably, then the seat support stability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
Instead of using a fixed rigid support structure that would require high manufacturing precision, the patent uses a four-bar linkage mechanism that provides stability through its kinematic properties. The linkage device allows for controlled movement while maintaining stable support, inverting the traditional approach of using rigid fixed structures.
Solution Approach 2:
The four-bar linkage device changes the motion parameters of the seat, allowing it to move in a controlled manner while maintaining stability. By adjusting the linkage geometry and pivot points, the system achieves stable support with relaxed manufacturing tolerance requirements compared to rigid fixed 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
The solution enables the massage chair to effectively drive the human body into overall movement, ensuring consistent vibration frequencies and improved user experience through enhanced massage functionality.
Implementation Method 1
The eccentric mechanism includes an eccentric wheel, a drive shaft and a connecting piece. The eccentric wheel is fixedly mounted on the drive shaft, and the eccentric wheel drives the connecting piece to move up and down. The power device drives the drive shaft to rotate and the drive shaft drives the eccentric wheel to rotate.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A massage chair that involves the technical field of passive exercise apparatus. Including the seat and the drive device set under the seat, the drive device includes the bottom plate, the connection frame, the upper and lower jitter device and the four-link device, the bottom of the seat is fixed with a connecting rod, the bottom and the connection frame and the bottom of the upper and lower jitter device, the bottom bracket of the massage chair can drive the action of the massage chair, and the seat stability through the four-link device can ensure the jitter frequency of the four fulcrum position.