Flexible Seat Back Mounting for Exercise Force Cushioning
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Solution Overview
Problem
Existing exercise device seat backs are frequently uncomfortable due to the greater forces exerted by users when engaging with resistance sources, which existing designs fail to adequately accommodate.
Innovation Solution
A back support system with a mounting system that allows flexible movement of the seat back relative to the frame, utilizing a resilient mounting member and flexible components to absorb and distribute forces, providing a cushioning effect and reducing stress on the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid mounting system is used to securely attach the seat back to the frame, then structural strength and stability are improved, but user comfort deteriorates due to inability to absorb exercise forces
Solution Approach 1:
The mounting system transitions from a static rigid connection to a dynamic flexible connection that allows controlled movement. The resilient mounting member enables the seat back to move relative to the frame in response to applied forces, absorbing shocks and distributing loads while maintaining secure attachment. This dynamic behavior simultaneously achieves structural strength and user comfort.
Solution Approach 2:
The mounting member changes its mechanical parameters (rigidity, damping characteristics) based on applied load conditions. Under normal conditions it provides firm support, but under high-force exercise conditions it flexes and absorbs energy. This parameter adaptation resolves the contradiction between needing rigid support for strength and flexible response for comfort.
2Ease of operation
If a flexible mounting system is used to improve comfort, then user comfort is improved, but structural stability deteriorates
Solution Approach 1:
The mounting member is implemented as a flexible resilient component that can deform under load while maintaining its structural integrity. This flexible element absorbs dynamic forces during exercise while preventing excessive movement that would compromise stability. The flexibility provides comfort while the controlled elastic deformation maintains structural stability.
3Manufacturing precision
If rigid components are used throughout the mounting system, then manufacturing precision is improved, but durability deteriorates due to stress concentration
Solution Approach 1:
The mounting system combines rigid components (for precise positioning and attachment) with resilient mounting members (for stress absorption and durability). This composite approach allows rigid parts to be manufactured with high precision for proper fit and alignment, while the resilient component absorbs stress concentrations that would otherwise lead to failure in rigid parts, thereby improving overall durability.
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 solution enhances comfort and reduces fatigue for users while extending the lifespan of the seat back by allowing flexible movement and distributing forces effectively, providing a more comfortable and durable exercise experience.
Implementation Method 1
a resilient mounting member and flexible components to absorb and distribute forces
Data Source
AI summary
A mounting member is adapted for joining a seat back to a frame. The mounting member includes a base and an extension projecting from the base along an axis in absence of external forces to the extension. The extension has an end distant from the base that is connectable to the seat back and that is resiliently linearly movable in directions substantially perpendicular to the axis 360° about the axis.