Dynamic Seating Surface Chair for Anti-Gravity Muscle Training
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Solution Overview
Problem
Existing chairs that induce trunk movement by inclining the seating surface fail to effectively train anti-gravity muscles necessary for maintaining posture unconsciously, as they limit muscle activity due to fixed inclinations determined by user posture.
Innovation Solution
A chair with an elastic support post connecting the base and seating surface, a rotating table, and multiple support posts of varying lengths, controlled by a motor and controller, allows the seating surface to incline dynamically, training anti-gravity muscles through continuous reflexive posture control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the seating surface inclination is fixed in a predetermined direction, then the structure is simple and easy to manufacture, but only specific anti-gravity muscles are tensed and muscle activity is limited
Solution Approach 1:
The patent applies the dynamics principle by replacing the fixed inclination mechanism with a dynamic support post system that can change inclination angles and directions. The support posts are configured to allow the seating surface to incline in multiple directions (front-rear, left-right, and diagonal directions) rather than being fixed in a single predetermined direction, enabling comprehensive muscle training while maintaining structural simplicity.
Solution Approach 2:
The patent applies parameter changes by varying the lengths of multiple support posts to create different inclination angles. By adjusting the support post lengths (with at least one post having a different length from others), the system can generate various inclination parameters without complex mechanisms, thereby training multiple anti-gravity muscles effectively while keeping the structure simple.
2Adaptability or versatility
If the seating surface inclination is determined by user posture, then the chair adapts to the user, but the degree of muscle activity with respect to inclination is limited
Solution Approach 1:
The patent applies dynamics by implementing a passive dynamic inclination system where the seating surface automatically adjusts to user posture through the elastic deformation of support posts. This dynamic response allows the chair to adapt to various user postures while simultaneously providing sufficient inclination stimulus to activate anti-gravity muscles, resolving the contradiction between adaptation and training effectiveness.
Solution Approach 2:
The patent applies self-service through the elastic support posts that automatically respond to user weight and posture without requiring active control systems. The support posts self-adjust the seating surface inclination based on the user's body position, providing both posture adaptation and adequate muscle stimulation inherent in the passive elastic mechanism.
3Adaptability or versatility
If multiple support posts with different lengths are used to enable variable inclination, then muscle training effectiveness is improved, but the device complexity increases
Solution Approach 1:
The patent applies parameter changes by using support posts with different lengths as a simple geometric solution to achieve variable inclination. This approach creates multiple inclination angles and directions without requiring complex actuators or control systems, thereby improving muscle training effectiveness while maintaining relatively simple device structure.
Solution Approach 2:
The patent applies segmentation by dividing the support function into multiple independent support posts rather than using a single complex mechanism. Each support post independently contributes to the overall inclination, allowing variable seating surface angles through simple structural arrangement rather than complex integrated mechanisms.
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 effectively trains anti-gravity muscles by allowing the seating surface to incline variably, promoting unconscious posture maintenance through continuous muscle engagement.
Implementation Method 1
an elastic support post that connects the base and the seating surface, maintains the seating surface in a reference state, and allows the seating surface to incline from the reference state in response to a force applied to the seating surface
Implementation Method 2
a motor for generating the power
Data Source
AI summary
The chair of the present disclosure includes a base, a seating surface positioned on the upper side of the base and seated by a user, a base and a seating surface are connected, a seating surface is maintained in a reference state, and a seating surface is inclined from the reference state in accordance with a force applied to the seating surface by the seating of the user in accordance with the reference state; an elastic support post installed on the upper side of the base and rotating about an axis in the vertical direction based on power; a plurality of support posts installed on the upper side of the rotating table and supporting the seating surface at the upper end portion when the seating surface is inclined; and a motor that generates power.