Slide rail assembly
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Solution Overview
Problem
Current slide rail assemblies face limitations due to the fixed stop members that occupy space, making it difficult to accommodate larger chassis sizes, and existing designs struggle to meet the requirement of thinner slide rails.
Innovation Solution
A slide rail assembly with a blocking member and elastic member that allows the second rail to be moved relative to the first rail, providing an elastic force to hold the blocking member in position and ensuring the second rail can be securely positioned at an extension position, while also incorporating a synchronization member to enhance engagement with the third rail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed stop member is used to prevent the third rail from moving, then the rail can be securely held in position, but the stop member occupies space and limits the ability to accommodate larger chassis sizes
Solution Approach 1:
The patent transforms the fixed stop member into a movable blocking member that can shift position dynamically. The blocking member is movably arranged on the first rail and can be pushed by the second rail during extension, allowing it to adapt to different rail positions while maintaining the stopping function. This dynamic arrangement eliminates the need for a large fixed structure.
Solution Approach 2:
The blocking member acts as an intermediary between the second rail and the first rail. Instead of the second rail directly interacting with a fixed stop member on the first rail, the blocking member mediates this interaction by being pushed by the second rail and subsequently blocking its return movement, achieving the same function with reduced space occupation.
2Length of moving object
If the slide rail is made thinner to meet market requirements, then the profile can be reduced, but the structural integrity and reliability may be compromised
Solution Approach 1:
The patent divides the rail assembly into multiple functional segments: the first rail provides the base structure, the blocking member provides the stopping function, and the elastic member provides the resetting function. This segmentation allows each component to be optimized independently, enabling thinner overall rail profiles while maintaining reliability through specialized functional elements.
Solution Approach 2:
The patent changes the state of the blocking member from fixed to movable, and introduces elastic force as a new parameter to control the blocking member's position. This allows the system to maintain reliability without increasing rail thickness, as the elastic force dynamically adjusts the blocking member's position based on operational needs.
3Length of moving object
If a movable blocking member with elastic member is used instead of a fixed stop member, then the rail thickness can be reduced, but the device complexity increases
Solution Approach 1:
The patent merges the blocking function and the resetting function into a single integrated system. The blocking member combines the stopping capability with the elastic member that automatically resets it. This merging reduces the need for separate resetting mechanisms, actuators, or control systems that would otherwise be required, thereby limiting the increase in device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design allows for a more compact and reliable slide rail assembly that can accommodate larger chassis sizes by ensuring the second rail is securely held at the extension position, improving the engagement between components and enhancing the assembly's overall reliability and adaptability.
Implementation Method 1
providing an elastic force to hold the blocking member in position
Data Source
Figure 1
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Figure 3
AI summary
A slide rail assembly includes a first rail (22), a second rail (24) and a blocking member (26). The second rail (24) is movable relative to the first rail (22). The blocking member (26) is movably arranged on the first rail (22). When the second rail (24) is moved relative to the first rail (22) from a retracted position to an extension position, the second rail (24) is blocked by the blocking member (26).