Slide rail assembly
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Solution Overview
Problem
Conventional slide rail assemblies are limited by a fixed transverse width between posts, making it difficult to mount objects wider than the standard width, as the sum of the object's width and the rail assemblies' width must equal the fixed post width, restricting the accommodation of larger objects.
Innovation Solution
The slide rail assembly design includes a first rail mounted between two posts with a longitudinal channel, a second rail movably connected to the first rail, and a third rail, where a portion of the rail's width is arranged within the post accommodation space, allowing for increased flexibility and support during extension and retraction, and incorporating support members and blocking portions to facilitate smooth displacement and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the slide rail assembly uses a conventional design with fixed transverse width, then the structure is simple and easy to manufacture, but the object width is limited and cannot accommodate wider objects
Solution Approach 1:
The second rail is nested within the longitudinal channel of the first rail, and the third rail is nested within the longitudinal channel of the second rail. This nested configuration allows the slide rail assembly to accommodate wider objects by extending the effective width within the fixed post accommodation space, while maintaining a compact structure when retracted.
Solution Approach 2:
The invention utilizes the longitudinal dimension (along the channel) to provide width accommodation. By arranging rails in a longitudinal sequence within the transverse space between posts, the assembly effectively converts longitudinal displacement capability into transverse width accommodation, allowing wider objects to be mounted without increasing the transverse footprint between posts.
2Adaptability or versatility
If the second rail is made longer to accommodate wider objects, then the object width capacity increases, but the rail becomes less stable during displacement
Solution Approach 1:
The slide rail assembly is divided into multiple segmented rails (first rail, second rail, third rail) connected in sequence. Each rail segment provides structural support and stability, while the cumulative length of all segments accommodates wider objects. The segmentation allows each individual rail to remain stable while the overall assembly achieves the required width capacity.
Solution Approach 2:
The longitudinal channel acts as an intermediary structure that guides and stabilizes the displacement of the second rail relative to the first rail. The channel provides lateral constraints and support surfaces that maintain stability during movement, preventing the long rail from becoming unstable despite its extended length.
3Adaptability or versatility
If the rail assembly is extended to support wider objects, then the accommodation space increases, but the support stability during extension and retraction decreases
Solution Approach 1:
Different portions of the rail assembly have different functional qualities optimized for their specific roles. The longitudinal channel provides guided movement and lateral support, the support portions provide localized bearing surfaces, and the blocking portions provide positional limits. This local optimization of qualities ensures stability throughout the extended range of motion.
Solution Approach 2:
The support portions are pre-positioned on the brackets to provide support before the rails are fully extended. The blocking portions are pre-positioned to define the limits of extension and retraction. This preliminary arrangement of support and constraint elements ensures stability is maintained throughout the movement range without requiring active control during operation.
Data Source
AI summary
A slide rail assembly to be mounted to a first post and a second post of a rack is provided. The two posts define an accommodation space therebetween. The slide rail assembly is mounted between the first post and the second post by two brackets and includes a transverse width. A portion of the transverse width is arranged within the accommodation space so as to provide more space and thereby facilitate the mounting of an object to the rack.