Dynamic Ergonomic Chair With Exercise Ball Seat Support
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Solution Overview
Problem
Existing chair designs fail to provide dynamic motion, proper weight distribution, and active muscle engagement, leading to back pain, limited circulation, and reduced muscle activity due to static seating positions.
Innovation Solution
An ergonomic chair featuring a contoured seat cushion mounted on an exercise ball with adjustable elastic cords, a swivel plate, and a spring-loaded articulated back support, allowing for dynamic movement and adjustable weight distribution, encouraging core strengthening and improved posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed seating platform is used, then structural stability is improved, but dynamic motion and muscle engagement are reduced
Solution Approach 1:
The patent replaces the fixed seating platform with an exercise ball that allows dynamic motion in multiple directions. The ball can compress, expand, rotate, and shift position, enabling the sitter to maintain balance through active muscle engagement while providing structural support through the ball's elasticity and the surrounding frame structure.
2Adaptability or versatility
If an inflatable exercise ball is used alone, then dynamic motion is improved, but stability and weight distribution are reduced
Solution Approach 1:
The patent places the inflatable exercise ball within a rigid chair frame structure. The ball is nested inside the frame, which provides external structural support and stability, while the ball itself provides dynamic motion capability. This nested configuration combines the advantages of both the flexible ball and the stable frame.
Solution Approach 2:
The patent combines the inflatable ball material (providing elasticity and dynamic response) with the rigid frame structure (providing stability and support). This composite system integrates materials with different mechanical properties to achieve both stability and dynamic motion capability simultaneously.
3Stress or pressure
If a fixed ergonomic seat is used, then weight distribution is improved, but active muscle engagement is reduced
Solution Approach 1:
The patent replaces the fixed ergonomic seat with a dynamic exercise ball that responds to the sitter's movements. The ball's surface deforms and shifts in real-time, requiring continuous active muscle engagement to maintain balance and proper posture, while still providing weight distribution through the ball's elastic properties.
4Device complexity
If the seating angle is fixed, then structural simplicity is improved, but circulation and muscle engagement are reduced
Solution Approach 1:
The patent eliminates fixed seating angles by using an exercise ball that naturally adapts to various sitting positions. The ball's spherical shape and elastic properties allow it to support multiple angles and positions without requiring mechanical adjustment mechanisms, maintaining structural simplicity while enabling continuous position changes.
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 chair enhances strength, endurance, flexibility, and circulation while reducing fatigue and back pain by enabling dynamic seating and engaging multiple muscle groups, making it suitable for extended sitting periods.
Implementation Method 1
four tension-adjustable elastic cords
Implementation Method 2
a series of large spring coils tensioned between the outer cushion of the seat back and the inner plate, to create further resistance and encourage motion
Data Source
AI summary
A chair having a contoured seat cushion mounted on top of an exercise ball with four tension-adjustable elastic cords such as bungee cords is provided. The shock absorbing cords may attach to the underside of the seat cushion by looping through spring-eye carabiner type hooks, and may pass through grooved locking tubes with v-channels for adjusting the cord tension. The ball may sit on top of a swivel plate, so that dynamic motion and counterbalancing are attainable for a variety of ergonomically beneficial seating styles.


