Slide Rail Supporting Base for Stable Chassis Extension
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Solution Overview
Problem
Existing slide rail assemblies are unstable when carrying a chassis drawn out from a rack, as only a small portion of the middle rail is supported by the outer rail, leading to instability.
Innovation Solution
A slide rail assembly with a supporting base movably arranged on a bracket, allowing the second rail to move into a supporting passage for full support, ensuring the middle rail is supported by both the outer rail and the supporting base when extended.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the middle rail and inner rail are pulled out, then the chassis can be drawn out from the rack, but only a small portion of the middle rail is supported by the outer rail causing instability
Solution Approach 1:
A supporting base is introduced as an intermediary component between the outer rail and the middle/inner rails. The supporting base includes a supporting portion that extends into the passage formed by the outer rail, providing additional support points for the middle rail when pulled out. This mediator structure transfers and distributes the load, preventing the middle rail from dangling and ensuring stable chassis extraction.
2Length of moving object
If the travel distance of the slide rail assembly is increased, then the chassis can be drawn out further, but the unsupported portion of the middle rail increases causing instability
Solution Approach 1:
The supporting base introduces a new spatial dimension for support by extending the supporting portion into the passage space of the outer rail. This three-dimensional arrangement allows the middle rail to be supported at multiple points along its length, distributing the load vertically and laterally, thereby maintaining stability even when the travel distance is increased.
Data Source
AI summary
A slide rail assembly includes a first rail, a second rail, a bracket and a supporting base. The first rail defines a first passage along a first direction. The second rail is movably connected to the first rail and is movable relative to the first rail in the first passage. The bracket is connected to an end of the first rail. The supporting base is movably arranged on the bracket and is movable along the first direction relative to the bracket. The supporting base includes a first supporting portion defining a supporting passage corresponding to the first passage, and the supporting base is configured to allow the second rail to move into the supporting passage.