Swing-Up Grab Bar with Triangular Truss for Enhanced Load Distribution
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Solution Overview
Problem
Existing grab bar designs are inefficient in distributing and handling loading, which limits their lift capacity and durability, particularly in supporting user weight in lavatories.
Innovation Solution
A swing-up grab bar assembly with a continuous support bar featuring a top section, a bottom section that angles upward, and a brace member, along with a pivotable coupling mechanism, effectively distributes loading and enhances the structural integrity by forming a triangular truss shape, improving load capacity and lifetime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional grab bar designs are used, then the structure is simple and easy to manufacture, but the load distribution and handling capabilities are insufficient, limiting lift capacity and durability
Solution Approach 1:
The continuous support bar is segmented into multiple functional sections (top section, bottom section, middle section) with distinct orientations and load-bearing roles. This segmentation allows each section to optimize its structural configuration for specific loading conditions, thereby increasing overall lift capacity while maintaining manufacturability through modular assembly
Solution Approach 2:
The grab bar transitions from a conventional single-plane horizontal structure to a three-dimensional configuration with sections extending in different directions (top section horizontally, bottom section at angle, middle section vertically). This dimensional transformation enables more effective load distribution across multiple spatial axes, enhancing structural strength without proportionally increasing complexity
2Reliability
If a continuous support bar with multiple sections and brace members is implemented, then load distribution and structural integrity are improved, but the manufacturing complexity increases
Solution Approach 1:
Multiple structural elements (continuous support bar, brace members, mounting brackets) are merged into an integrated assembly where components work together as a unified load-bearing system. The brace members are strategically positioned to reinforce critical joints and transitions, improving durability through combined structural action rather than relying on any single element
Solution Approach 2:
The continuous support bar is pre-configured with specific geometric features (bends, angles, attachment points) during manufacturing to optimize its load distribution characteristics before installation. This preliminary structuring ensures that the bar naturally channels and distributes loads along predetermined paths, enhancing reliability while simplifying on-site installation
Data Source
AI summary
A grab bar includes a continuous support bar extending between a first end and a second end vertically spaced apart from the first end. The continuous support bar has a top section extending away from the first end, a bottom section extending away from the second end and angling upward toward the top section, and a bend formed between and connecting the top section and the bottom section. A brace member is coupled to and extends between the top section and the bottom section.