Split-Seat Chair Control for Pelvic Load Balancing
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Solution Overview
Problem
Existing functional chairs fail to uniformly disperse loads applied from both sides of the body, leading to imbalance and discomfort, particularly affecting individuals with bilaterally symmetric spines, and do not adequately adjust to individual differences in lordosis and kyphosis angles, resulting in backache and degenerative diseases.
Innovation Solution
A functional chair with separately formed first and second seats that can independently adjust their heights, supported by a frame and a backrest with adjustable left and right sides, using pressure-measuring units and controllers to ensure balanced load distribution and spinal alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single seat structure is used, then the chair structure is simple, but it cannot accommodate individual body type differences and maintain spinal balance
Solution Approach 1:
The seat is divided into a left seat and a right seat that are independently adjustable. Each seat can be adjusted separately in height and angle, allowing the chair to adapt to individual body type differences and maintain spinal balance without requiring a completely complex new structure.
Solution Approach 2:
The chair incorporates dynamic adjustment mechanisms that allow the left and right seats to be independently positioned. This dynamic capability enables the chair to adapt to different user postures and body types while maintaining a relatively simple overall structure through controlled adjustability.
2Adaptability or versatility
If a fixed backrest is used, then the chair structure is simple, but it cannot accommodate individual differences in lordosis and kyphosis angles
Solution Approach 1:
The backrest is designed with dynamic adjustment capabilities that allow it to adapt to individual differences in lordosis and kyphosis angles. The backrest can be adjusted to different angles and positions to accommodate various spinal configurations while maintaining a relatively simple overall structure through controlled adjustability.
3Ease of operation
If seats are not independently adjustable, then the chair structure is simple, but loads cannot be uniformly dispersed from left and right sides
Solution Approach 1:
The seat is segmented into independently adjustable left and right portions. This segmentation allows each side to be adjusted separately to achieve uniform load distribution from left and right sides, while the adjustment mechanisms remain relatively simple and manageable.
Data Source
AI summary
Disclosed is a functional chair capable of adjusting a height of a seat. The functional chair includes a first seat configured to support a left pelvis, a second seat provided at a right side of the first seat, a frame provided below the first seat and the second seat, a backrest protruding from one side of the first and second seats, a seat pressure measuring unit which is respectively provided on the first seat and the second seat, a controller which receives the first pressure value and the second pressure value from the seat pressure measuring unit, a memory which stores in advance drive command information corresponding to a difference between the first pressure value and the second pressure value, a first height adjusting unit provided between the first seat and the frame, and a second height adjusting unit provided between the second seat and the frame.