Dual-Platform Ergonomic Chair for Pelvic Alignment and Hip Flexibility

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Solution Overview

Problem

Conventional desk systems and chairs promote a sitting position that decreases muscle and joint flexibility, leading to lower back pain and weight gain, as they do not align with human physiology, particularly by not engaging the large pelvic muscles designed for maintaining proper spine alignment.

Innovation Solution

A variably vertically positioned raised platform desk system with adjustable mounting assemblies for peripherals, a recessed storage unit, lumbar support, and a stool, along with an ergonomic chair featuring a dual-platform design that allows users to sit in various positions, promoting hip flexibility and strength while accommodating different seating preferences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional desk systems and chairs provide upper back and lumbar support, then back support is improved, but hip flexibility and lower back strength deteriorate

Engineering Contradiction:

Improveback supportVSAvoidhip flexibility

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent removes traditional backrests and lumbar supports from the seating system, extracting the harmful supportive elements that cause pelvic counter-tilting. Users sit on basic stools or chairs without back support, forcing their own pelvic muscles to maintain proper alignment rather than relying on artificial support structures.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of providing back support that pushes the pelvis into counter-tilt, the system inverts the approach by providing pelvic support through footrests and leg elevation. The support is applied at the legs and feet rather than the back, indirectly promoting proper pelvic alignment through mechanical leverage.

Inventive Principle:

Principle #13The other way round (Inversion)

2Stability of the object's composition

If conventional chairs force pelvic tilt to prevent sliding off, then seating stability is improved, but muscle flexibility and strength deteriorate

Engineering Contradiction:

Improveseating stabilityVSAvoidmuscle flexibility

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The system promotes dynamic sitting positions where users can frequently adjust their posture, elevate their legs on footrests, and change positions throughout the day. This dynamic approach replaces static, fixed pelvic tilt with active muscle engagement and position variation, maintaining stability through movement rather than rigid positioning.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Users are encouraged to periodically elevate their legs on footrests and alternate between different sitting positions. This periodic leg elevation and position changing prevents prolonged static posture, maintaining muscle flexibility while providing regular stability through structured position changes.

Inventive Principle:

Principle #19Periodic action

3Ease of operation

If conventional seating does not engage pelvic muscles, then ease of sitting is improved, but fat processing and weight management deteriorate

Engineering Contradiction:

Improveease of sittingVSAvoidfat processing

Core Design Contradiction:

Ease of operationVSLoss of energy

Solution Approach 1:

The system requires users to self-manage their pelvic alignment and posture without artificial back support. Users must actively engage their pelvic muscles to maintain proper spine alignment, turning the act of sitting into a self-regulating exercise that continuously engages fat-processing muscles rather than allowing them to remain passive.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system changes the physical parameters of sitting by elevating the legs and feet, altering the mechanical leverage on the pelvic muscles. This parameter change transforms sitting from a passive state to an active muscle-engaging position that promotes fat processing while maintaining ease of use through proper ergonomic positioning.

Inventive Principle:

Principle #35Parameter changes

4Ease of operation

If lumbar support is provided, then back comfort is improved, but pelvic alignment deteriorates

Engineering Contradiction:

Improveback comfortVSAvoidpelvic alignment

Core Design Contradiction:

Ease of operationVSShape

Solution Approach 1:

The patent removes lumbar support elements from the seating system, extracting the harmful support that causes pelvic counter-tilt. By eliminating this element entirely, the system prevents pelvic misalignment at its source while users derive comfort from proper pelvic muscle engagement and leg elevation rather than artificial back support.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS8297706B2Ergonomic chair

Publication Date: 2012.10.30 MATTHEWS JOHN P

AI summary

An ergonomic desk system and chair for promoting hip flexibility and strength and reducing lower back pain. The ergonomic desk system broadly comprises a variably positioned, raised platform, mounting assemblies for office peripherals, a recessed storage unit mounted on an underside of the platform, a lumbar support coupled to the platform, and a stool. Use of the desk system allows a user to sit on the platform in numerous positions while still performing routine office work. The ergonomic chair broadly comprises a base, a first, lower platform, and a second, upper platform spaced above the first, lower platform. The user sits on the second platform and rests their legs on the first platform in various positions. Use of the ergonomic chair results in the user rotating their pelvis to a position that is comfortable and properly aligned.