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

VSEngineering 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

Engineering Contradiction:
Improvestructural stabilityVSAvoiddynamic motion capability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

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.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If an inflatable exercise ball is used alone, then dynamic motion is improved, but stability and weight distribution are reduced

Engineering Contradiction:
Improvedynamic motion capabilityVSAvoidstability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

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.

Inventive Principle:
Principle #7Nested doll (Nesting)

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.

Inventive Principle:
Principle #40Composite materials

3Stress or pressure

If a fixed ergonomic seat is used, then weight distribution is improved, but active muscle engagement is reduced

Engineering Contradiction:
Improveweight distributionVSAvoidactive muscle engagement
Core Design Contradiction:
Stress or pressureVSAdaptability or versatility

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.

Inventive Principle:
Principle #15Dynamics

4Device complexity

If the seating angle is fixed, then structural simplicity is improved, but circulation and muscle engagement are reduced

Engineering Contradiction:
Improvestructural simplicityVSAvoidposition adjustment capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

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.

Inventive Principle:
Principle #15Dynamics

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

Methodology Applied
Scientific EffectElasticity: Elasticity

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

Methodology Applied
Scientific EffectSpring tension: Spring

Data Source

PatentUS10021983B2Ergonomic chair
Publication Date: 2018.07.17 MARK DARREN WILLIAM
  • US10021983B2 patent drawing
  • US10021983B2 patent drawing
  • US10021983B2 patent drawing

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.