Slide rail assembly
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Solution Overview
Problem
Conventional slide rail assemblies fail to maintain proper mounting and displacement under vibrational forces, leading to potential separation or bending of rails, which compromises safety and quality.
Innovation Solution
A slide rail assembly design incorporating a first rail, a second rail, and a third rail, with a position-limiting member and slide-facilitating devices, where the third rail is movably mounted between the first and second rails, and position-limiting features prevent separation in the transverse direction by establishing predetermined distances and supporting bases to maintain secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional slide rail assembly is used, then the structure is simple, but the rails separate or bend under vibrational forces compromising safety and quality
Solution Approach 1:
The slide rail assembly is divided into multiple rails (first rail, second rail, third rail) with distinct functions. Each rail segment handles specific loads and movement requirements, allowing the system to maintain stability under vibration while keeping individual components manageable in complexity.
Solution Approach 2:
A position-limiting member is introduced as an intermediary component between the rails to prevent separation and bending. This mediator component specifically addresses the reliability issue by constraining rail movement without requiring complete redesign of the entire assembly structure.
2Reliability
If position-limiting member is added to prevent separation, then the reliability improves, but the device complexity increases
Solution Approach 1:
The position-limiting member serves multiple functions: it prevents rail separation, maintains predetermined distances between rails, and provides support bases for stable mounting. By combining these functions into a single component, the design improves reliability without proportionally increasing complexity.
Solution Approach 2:
The position-limiting member extends in the transverse direction to prevent separation, adding a dimensional constraint that addresses the reliability issue. This spatial extension provides the necessary control without requiring additional components in other dimensions.
3Ease of operation
If third rail is movably mounted between first and second rails, then the displacement capability improves, but the stability under force deteriorates
Solution Approach 1:
Different sections of the rail assembly have different qualities: the third rail provides movable longitudinal displacement capability where needed, while the position-limiting member provides rigid transverse stability where required. This local differentiation allows simultaneous achievement of displacement capability and stability.
Solution Approach 2:
The position-limiting member applies preliminary anti-action by preventing transverse separation before it can occur during operation. This preemptive constraint ensures that while longitudinal movement is free, transverse stability is maintained under applied forces.
Data Source
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AI summary
A slide rail assembly (100) includes a first rail (102), a second rail (104), a third rail (106), and a position-limiting member (108). The third rail (106) is movably mounted between the first and the second rails (102, 104). The second and the third rails (104, 106) can be displaced with respect to the first rail (102) from a predetermined position (P) in a first direction (D1). When the second and the third rails (104, 106) are at the predetermined position (P) with respect to the first rail (102), a first portion (130) of the position-limiting member (108) is adjacent to an end portion (102a, 104a, 106a) of the three rails (102, 104, 106), and a second portion (132) of the position-limiting member (108) prevents the three rails (102, 104, 106) from separating from one another in a second direction (D2) substantially perpendicular to the first direction (D1).