Dynamic Chair Structure Using Resilient Seat Support
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Solution Overview
Problem
Static chairs restrict movement and can be detrimental to the body when used for extended periods, and existing dynamic seating solutions are overly complex and fail to provide adequate fluidity and responsiveness.
Innovation Solution
A chair design featuring a seating portion, a base portion, and a connecting portion made of resilient materials that allows the seating portion to move between default and loaded positions, dynamically responding to the occupant's posture and returning to the default position when unoccupied, utilizing elongate members and a wedge portion for stability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If static chairs are used, then structural simplicity is maintained, but user comfort and body health deteriorate due to restricted movement
Solution Approach 1:
The chair employs resilient connecting portions that enable dynamic movement between the base portion and seating portion, allowing the structure to adapt to user movements while maintaining overall structural simplicity. The resilient material provides automatic adjustment without complex mechanical mechanisms.
2Ease of operation
If highly complex mechanisms are used to enable movement, then fluidity of movement improves, but device complexity increases excessively
Solution Approach 1:
The connecting portions are made from resilient material that changes its mechanical properties based on load conditions. The material's elasticity allows smooth, fluid movement transitions without requiring complex mechanical joints or actuators, achieving responsiveness through material property rather than mechanism complexity.
3Adaptability or versatility
If resilient materials are used in connecting portions, then responsiveness to occupant posture improves, but manufacturing complexity increases
Solution Approach 1:
The connecting portions utilize composite resilient materials that combine flexibility with structural integrity. These materials can be molded into the required shapes, simplifying manufacturing compared to assembling multiple mechanical components, while still providing the necessary responsiveness to occupant posture 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 provides an active seating experience by adjusting to the user's movements, enhancing comfort and reducing the negative effects of static seating while maintaining stability and facilitating easy stacking and configuration.
Implementation Method 1
The connecting portion is configured to provide a degree of freedom of the position of the seating portion relative to the base portion, such that the seating portion is movable between a default unloaded position relative to the base portion and each of a plurality of available loaded positions relative to the base portion
Data Source
AI summary
There is provided a chair (101) comprising: a seating portion (102) for occupation; a base portion (103) for location upon a support surface; and a connecting portion (104) connectedly extending between said seating portion (102) and said base portion (103); wherein said connecting portion (104) is configured to provide a degree of freedom of the position of said seating portion (101) relative to said base portion (103), such that said seating portion (102) is movable between a default unloaded position relative to said base portion (103) and each of a plurality of available loaded positions relative to said base portion (103), whereby when unoccupied, said seating portion (102) is in said default unloaded position relative to said base portion (103), and when occupied, said seating portion (102) is in one of said plurality of available loaded positions relative to said base portion (103), whereby said chair is configured to dynamically respond to changes in the posture of an occupant.