Bidirectional Slide Rail Latching for Controlled Retraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional slide rail assemblies cannot prevent accidental retraction of the inner slide rail into the outer slide rail, making it inconvenient for users to operate.
Innovation Solution
A slide rail assembly with a first rail, a second rail, stop members, release members, a fixing board, actuating members, and a resilient clip that engages with stop members to latch the rails in two directions and selectively release them in different directions using coil springs for operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stop member with a protrusion engages with an inclined wall of a retaining member to prevent accidental release, then the reliability of preventing accidental release is improved, but the ability to prevent careless retraction is worsened
Solution Approach 1:
The stop member is divided into two separate stop members (first stop member and second stop member) positioned at different locations. Each stop member can be independently engaged or disengaged by separate release members, allowing independent control of latching in opposite directions. This segmentation enables the system to provide reliable accidental release prevention while maintaining ease of controlled operation.
Solution Approach 2:
The system transitions from a static engagement mechanism to a dynamic one where the actuating members can be selectively moved between engaged and disengaged positions. The release members enable dynamic control, allowing users to disengage stop members when needed while maintaining engagement during normal operation, thus resolving the contradiction between reliability and ease of operation.
2Device complexity
If a single engagement mechanism is used to prevent accidental release, then the device complexity is reduced, but the versatility of controlling movement in multiple directions is worsened
Solution Approach 1:
The engagement mechanism is segmented into two independent stop members with separate release members. This segmentation increases versatility by enabling independent control in opposite directions while keeping each individual stop member relatively simple in structure, thus balancing device complexity with operational versatility.
Solution Approach 2:
Each stop member and its corresponding release member form a universal latching unit that can control movement in either direction. The first stop member controls movement in one direction while the second stop member controls movement in the opposite direction, creating a multi-functional system that handles bidirectional control through replicated simple units.
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
Enables secure latching and controlled release of the second rail in both directions, preventing accidental retraction and improving user convenience by allowing controlled movement.
Implementation Method 1
a resilient clip that engages with stop members to latch the rails in two-directions
Implementation Method 2
using coil springs for operation
Data Source
AI summary
An exemplary slide rail assembly includes a first rail having a pair of stop members, a second rail, a first release member and a second release member slidably attached to the second rail, a fixing board attached to the second rail, a pair of actuating members slidably attached to the fixing board, and a clip. The clip includes a pair of arms respectively abutting against the actuating members. The actuating members engage with the stop members to latch the second rail in the first rail in two opposite directions. One actuating member is driven by the first release member to disengage from one stop member so that the second rail is released along one direction. The other actuating member is driven by the second release member to disengage from the other stop member so that the second rail is released along the other direction.