Slide rail
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Extendable slide rails face issues with poor connection during extension and stability due to inadequate linking mechanisms.
Innovation Solution
The design incorporates a first and second resilient piece with a pulling tab, where the first resilient piece is fixed to the second rail and extends into a clearance slot, and a positioning slot on the third rail, allowing for elastic bending and locking, enabling stable extension and retraction by coordinating with a pushing block mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If multiple slide rails are connected during extension, then the extension functionality is achieved, but the connection stability and reliability deteriorate
Solution Approach 1:
The resilient piece transitions from a flexible state during extension to a locked state during retraction. During extension, the resilient piece flexes to allow movement; during retraction, it engages with the positioning slot to lock the rails together, providing dynamic adaptability that resolves the contradiction between extension capability and connection stability.
Solution Approach 2:
The resilient piece acts as an intermediary element between the second rail and the third rail. It mediates the connection by providing both flexibility during extension and rigid locking during retraction through its engagement with the positioning slot, thereby ensuring reliable connection while maintaining extension functionality.
2Device complexity
If a simple linking mechanism is used, then the device complexity is reduced, but the extension stability deteriorates
Solution Approach 1:
The resilient piece changes its mechanical parameters (flexibility vs. rigidity) based on the operational state. During extension, it maintains flexibility to allow movement; during retraction, it becomes rigid through engagement with the positioning slot, providing stability without requiring a complex multi-component locking mechanism.
Solution Approach 2:
The resilient piece automatically engages with the positioning slot through its own elastic deformation without requiring external actuation or complex control mechanisms. This self-locking feature provides stable extension while keeping the overall device complexity low.
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 configuration ensures a stable and secure extension process by locking the second rail in place, allowing continuous extension and contraction with improved stability and simplified operation.
Implementation Method 1
The first resilient piece 50 is elastically bent and extends into the positioning slot 31
Data Source
AI summary
A slide rail includes a first rail, a second rail, and a third rail. The first rail is slidably coupled to the second rail. The second rail is slidably coupled to the third rail. The first rail includes a pulling tab. The second rail includes a first resilient piece and a first clearance slot. The third rail includes a positioning slot. One end of the first resilient piece is fixed to the second rail, and another end of the first resilient piece extends into the first clearance slot. When the first rail slides out, the pulling tab drives the first resilient piece and the second rail to slide out. When the first resilient piece is moved to the positioning slot, the first resilient piece resiliently bends and inserts into the positioning slot, and the first resilient piece is separated from the pulling tab.