Slide Rail Assembly Interlock Device to Prevent Rack Overbalancing
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Solution Overview
Problem
In rack-mounted systems, the risk of overbalancing occurs when multiple objects are pulled out simultaneously, as the center of gravity shifts, necessitating interlock mechanisms to prevent this, but existing solutions are not adaptable to varying equipment shapes or configurations.
Innovation Solution
A slide rail assembly with an interlock device that includes a linking member, a first and second rail, and interlock devices with locking and engaging members, where the second rail displaces the linking member from a retracted to a predetermined position, activating the interlock mechanism to prevent excessive movement, and an elastic member applies force to maintain engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple objects are pulled out simultaneously, then accessibility and operation efficiency are improved, but the cabinet becomes unstable and may topple due to center of gravity shift
Solution Approach 1:
The interlock device applies preliminary anti-action by preventing the second object from being pulled out until the first object is fully retracted. The interlocking mechanism between the moving rails creates a mechanical constraint that actively blocks simultaneous extraction, thereby maintaining cabinet stability while still allowing sequential access to multiple objects
2Stability of the object's composition
If an interlock mechanism is added to prevent overbalancing, then cabinet stability is improved, but device complexity increases
Solution Approach 1:
The interlock mechanism is merged with the existing slide rail assembly structure. The interlocking members are integrated into the moving rails themselves, sharing common components such as the guiding portions and mounting structures. This merging approach enables the interlock function without adding significant structural complexity, as the same mechanical elements serve both the sliding and interlocking functions
3Reliability
If a fixed interlock mechanism is used, then prevention of overbalancing is reliable, but adaptability to different equipment shapes and configurations is reduced
Solution Approach 1:
The interlock mechanism employs dynamic elements including spring-loaded locking members and movable interlocking components that can adjust their position and engagement force. The guiding portions with inclined sections allow the mechanism to adapt to different rail positions and equipment configurations while maintaining reliable interlocking through the spring force and geometric constraints
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
The solution effectively prevents overbalancing by ensuring that only one rail can be extended at a time, maintaining stability across different equipment configurations and shapes, thereby enhancing safety and usability in rack-mounted systems.
Implementation Method 1
an elastic member applies force to maintain engagement
Data Source
AI summary
A slide rail assembly includes a supporting rail, a first rail, a second rail, and an interlock device. The second rail can be displaced with respect to the first rail. The interlock device is movably disposed between the first rail and the supporting rail. The second rail displaces the interlock device while being displaced from a retracted position with respect to the first rail to a predetermined position in an opening direction.