Articulated Load Support Structure for Stable Seating Posture
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Solution Overview
Problem
Conventional load support structures, such as seating systems, face challenges in providing comfortable posture and stability across varying user weights due to complex designs and high costs, often resulting in unhealthy rounded-back postures and excessive constructional complexity.
Innovation Solution
A load support structure featuring a seat with a complex mechanism that includes a rocking device with supporting arms, guide elements, and connecting links, allowing for active movement and deformation to adjust to user weight, thereby reducing the need for spring-based compensation and promoting healthy posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a complex rocking device mechanism is used to automatically adapt to body weight, then posture comfort is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts and eliminates the complex rocking device mechanism from the seating system. Instead of using a complex mechanism with multiple moving parts to automatically adapt to body weight, the invention uses a simpler backrest structure with articulations that provides manual adjustability, thereby reducing device complexity while maintaining posture comfort functionality
Solution Approach 2:
Instead of using an active complex mechanism to automatically adapt to the user, the patent inverts the approach by using a passive structure that allows the user to manually adjust the backrest to their desired position. This inversion simplifies the mechanism while achieving the same adaptive functionality
2Stability of the object's composition
If spring-based compensation mechanisms are used to counteract deformation, then stability is improved, but device complexity and weight increase
Solution Approach 1:
The patent removes spring-based compensation mechanisms from the backrest structure. Instead of using springs to actively counteract deformation and maintain stability, the invention relies on the inherent structural stability of the articulated backrest components and their geometric arrangement, thereby reducing constructional complexity
Solution Approach 2:
The patent merges the stability function into the basic structural components of the backrest. The articulations and rigid connections between backrest elements are designed to provide both movement capability and stability simultaneously, eliminating the need for separate spring-based compensation systems
3Adaptability or versatility
If multiple articulations and connecting elements are used to enable movement, then adaptability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent segments the backrest into multiple articulated sections that can move independently relative to each other. This segmentation allows each section to be manufactured separately using standard manufacturing processes, then assembled through simple connections, thereby maintaining adaptability while reducing overall manufacturing complexity
Solution Approach 2:
The patent implements dynamic adjustability through articulations that allow the backrest sections to move relative to one another. This dynamic capability is achieved through simple hinge-like connections rather than complex mechanisms, enabling easy manufacturing while providing versatile adjustment options for different user needs
Data Source
AI summary
A load support member includes spaced apart beam members, a linking member and a stop member. In another aspect, the beam includes a support surface defining first and second landing regions, which are in contact with and support a membrane. In another aspect, a brace member is secured between laterally spaced beams, with the brace member having a greater height than width at the end thereof and a greater width than height at the middle thereof. In another aspect, a pair of armrests are joined to a cross member and a pair of spaced apart beams in a releasable engagement. In yet another aspect, a pair of beam members are fixedly joined with a cross member, which is pivotally connected to a link pivotally connected to the beams. A method of assembling a load support structure is also provided.