Fluid-Chamber Seat Inclination Compensation for Neutral Spinal Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Commercial vehicles, such as tractors and construction machinery, often operate in inclined or slanted positions, leading to strain on the back and spine of the vehicle user, potentially causing spinal misalignment and curvature, such as scoliosis, due to the inability to maintain a neutral sitting position.
Innovation Solution
The implementation of an automatic inclination compensation system in vehicle seats using fluid chambers between the seat plate and cushion, which adjusts the seat part's inclination independently of the backrest, based on measurements from an inclination sensor, to provide a compensatory position and reduce spinal strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle operates in an inclined position to perform work (e.g., ploughing), then the work capability is improved, but the spinal alignment of the vehicle user deteriorates leading to strain and potential scoliosis
Solution Approach 1:
The patent introduces an intermediary compensatory mechanism between the inclined vehicle seat and the user's spine. Fluid chambers are positioned between the seat cushion and the user's坐骨, acting as a mediator that actively adjusts to counterbalance the inclination angle detected by the sensor, thereby protecting the spine from strain while maintaining work productivity
Solution Approach 2:
The system employs self-service through automatic detection and compensation. The inclination sensor continuously monitors the seat's angular position, and the control system automatically adjusts the fluid chamber pressure without requiring user intervention, enabling the seat to self-correct the inclination and maintain proper spinal alignment dynamically
2Object-affected harmful factors
If fluid chambers are used to compensate for seat inclination, then spinal alignment is improved, but the device complexity increases due to additional components
Solution Approach 1:
The patent extracts the inclination compensation function from the entire seat system and isolates it to specific fluid chambers positioned only in the seat cushion area. This selective extraction allows the backrest to remain independent while the seat part provides targeted compensation, reducing overall system complexity compared to a fully integrated solution
Solution Approach 2:
The patent utilizes pneumatic/hydraulic fluid chambers to achieve inclination compensation. By employing fluid pressure mechanisms controlled by a pump and valve system, the patent achieves smooth, continuous adjustment of the seat cushion angle without complex mechanical linkages or motors, simplifying the overall actuation system
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 system effectively compensates for the inclined position of the vehicle seat, reducing the risk of spinal curvature and discomfort by maintaining a neutral spinal alignment, even during prolonged operation in slanted conditions.
Implementation Method 1
fluid chambers can be filled or emptied by means of a control device depending on a detected lateral inclined position of the seat part
Data Source
AI summary
The invention relates to a vehicle seat for automatic inclination compensation, with a seat part and a backrest, wherein a fluid chamber unit with at least two flexibly designed fluid chambers is arranged between at least one seat plate part of the seat part and a thereabove arranged seat cushion part of the seat part.