Multi-Level Slide Rail Assembly for Rack Width Constraints
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Solution Overview
Problem
Conventional slide rail assemblies with multiple rails are width-limited due to space restrictions, making it difficult to accommodate wider carried objects in rack systems.
Innovation Solution
A slide rail assembly design featuring multiple rails arranged at different heights, with movable third and fourth rails connected to a mounting member, allowing synchronous movement and independent operation, thereby expanding the assembly's width capacity while maintaining structural strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the width of the slide rail assembly is increased to accommodate wider carried objects, then the carrying capacity is improved, but the space requirement increases making it incompatible with standard rack configurations
Solution Approach 1:
The patent transitions from a conventional single-plane arrangement of slide rails to a three-dimensional configuration where multiple rails are positioned at different heights (vertical dimension) and depths. This spatial reconfiguration allows the assembly to accommodate wider carried objects by distributing support across multiple elevation levels, effectively increasing the functional width capacity without proportionally increasing the horizontal footprint in the rack space.
Solution Approach 2:
The patent employs a nested structural arrangement where slide rails are positioned within each other's spatial envelopes when retracted. The multiple rails at different heights can be nested or overlapped in the retracted position, minimizing the overall width of the assembly when not in use, while still providing extended support surfaces when activated to accommodate wider objects.
2Strength
If multiple slide rails are arranged in parallel to increase width capacity, then the structural strength is improved, but the width of the assembly increases beyond rack specifications
Solution Approach 1:
Instead of arranging multiple slide rails purely in parallel horizontal planes (increasing width), the patent distributes them across vertical levels at different heights. This three-dimensional arrangement maintains the load-distributing benefits of multiple rails for enhanced structural strength while controlling the horizontal width footprint to fit within standard rack specifications.
3Area of stationary object
If the slide rail assembly is designed with fixed width to meet rack specifications, then the space efficiency is improved, but the adaptability to accommodate different sized carried objects is reduced
Solution Approach 1:
The patent incorporates movable and adjustable slide rail components that can shift positions along the assembly. This dynamic configuration allows the effective width and support geometry to be adjusted based on the size and dimensions of the carried object, providing versatility while maintaining a compact retracted profile for space efficiency in standard rack installations.
Solution Approach 2:
The multi-level slide rail design with adjustable components serves multiple functions: it can accommodate various object widths through configuration changes, provide different support heights for varied load requirements, and maintain a space-efficient profile when retracted. This universal design allows a single assembly type to adapt to diverse carried objects without requiring custom-width configurations.
Data Source
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AI summary
A slide rail assembly (20) includes a first rail (22), a second rail (24) and a mounting member (30). The mounting member (30) is arranged with a third rail (26) and a fourth rail (28). Wherein, the third rail (26) is movable relative to the first rail (22), and the second rail (24) is movable relative to the fourth rail (28) .