Slide Rail Assembly with Fitting-Guided Third Rail Alignment
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Solution Overview
Problem
Users face difficulties in aligning third rails with second rails in slide rail assemblies due to obstructed views or other factors, and the fixed first rails limit mounting tolerance between objects and the rack.
Innovation Solution
A slide rail assembly with a transversely movable first rail, a longitudinally movable second rail, and a fitting with guiding structures and an elastic section that facilitates the alignment and mounting of third rails into second rails, providing a mounting tolerance for objects of varying widths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the first rail is fixed on the rack, then the mounting structure is simple and stable, but the mounting tolerance between the object and the rack is limited
Solution Approach 1:
The first rail is designed to be movable relative to the rack along the transverse direction, transforming the static fixed connection into a dynamic adjustable connection. This allows the rail to adapt to different mounting positions and tolerances while maintaining structural stability through the guide structure that constrains the movement path.
2Ease of operation
If the third rail is mounted directly into the second rail without guidance, then the device complexity is reduced, but the alignment difficulty increases due to obstructed view
Solution Approach 1:
A fitting with guiding structures is introduced as an intermediary component between the third rail and the second rail. The fitting includes guide surfaces that facilitate the alignment and insertion of the third rail into the second rail, making the mounting operation easier while the fitting itself provides the necessary structural complexity.
3Ease of operation
If the fitting includes guiding structures for the third rail, then the alignment and mounting process is simplified, but the device complexity increases
Solution Approach 1:
The fitting is designed as a separate, detachable component with integrated guiding structures, allowing the mounting function to be segmented from the main rail structure. This segmentation enables the fitting to be pre-assembled with guidance features while keeping the overall device modular and manageable.
Data Source
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AI summary
A slide rail assembly (20) adapted for a rack (22) includes a first slide rail (26), a fitting (46), and a second slide rail (28). The first slide rail (26) is movable with respect to the rack (22) between a first position (PI) and a second position (P2). The fitting (46) is configured to be mounted on the first slide rail (26) and includes at least one guiding structure (54a, 54b, 56). The second slide rail (28) is configured to be guided by the at least one guiding structure (54a, 54b, 56) of the fitting (46) while being outside a channel (40) of the first slide rail (26) and thus enter the channel (40).