Interlocked Slide Rail Assembly to Prevent Simultaneous Drawer Extension
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Solution Overview
Problem
Existing slide rail mechanisms have complex structures that fail to effectively prevent two movable rails from being opened or extended simultaneously, posing a risk of cabinet instability and safety issues.
Innovation Solution
A slide rail mechanism featuring a connecting member that prevents the fourth rail from displacing with respect to the third rail by being moved when the second rail displaces, utilizing a self-closing device with a resilient member to ensure that the second rail is driven to a retracted position, thereby preventing simultaneous extension or opening of the rails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a blocking device is added to prevent simultaneous opening of multiple drawers, then safety and stability are improved, but device complexity increases
Solution Approach 1:
The patent combines the blocking function with the existing slide rail structure by integrating a blocking member that utilizes the movement of one drawer's slide rail to automatically block the other drawer's slide rail. This merging approach achieves the safety function without adding a completely separate blocking device, thereby improving cabinet stability while minimizing increases in device complexity
Solution Approach 2:
The patent introduces a connecting member as an intermediary element that links the two slide rail assemblies. This connecting member transmits the movement state of one drawer to the other, enabling the blocking function through mechanical coupling rather than requiring complex control systems or multiple independent blocking devices
2Reliability
If a complex blocking device with multiple components is used, then the blocking function is reliable, but ease of manufacture decreases
Solution Approach 1:
The patent segments the blocking function into modular components: a blocking member integrated into one slide rail assembly and a connecting member linking the two assemblies. This segmentation allows each component to be manufactured and assembled independently, simplifying the overall manufacturing process while maintaining reliable blocking functionality
Solution Approach 2:
The blocking mechanism is designed to operate automatically based on the movement of the drawers themselves. When one drawer moves, its slide rail's connecting member automatically engages or disengages the blocking member on the other slide rail assembly. This self-service mechanism eliminates the need for external actuators, complex control systems, or manual intervention, thereby improving ease of manufacture and assembly while ensuring reliable blocking function
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 simplifies the structure, enhances safety by preventing simultaneous drawer opening, and ensures stable operation by ensuring that drawers cannot be opened simultaneously, thus preventing cabinet instability.
Implementation Method 1
The resilient member is resiliently deformed during a displacement of the second rail with respect to the first rail from a retracted position to an extended position along the opening direction. The second rail is configured to be driven to the retracted position along a retracting direction by the resilient member during a displacement of the second rail with respect to the first rail from the extended position along the retracting direction.
Data Source
AI summary
A slide rail mechanism is provided and includes a first slide rail assembly, a second slide rail assembly and a connecting member. The first slide rail assembly includes a first rail and a second rail longitudinally displaceable with respect to the first rail. The second slide rail assembly includes a third rail and a fourth rail longitudinally displaceable with respect to the third rail. The connecting member is moved for preventing the fourth rail from displacing with respect to the third rail along an opening direction when the second rail displaces with respect to the first rail along the opening direction.