Telescopic Rail Assembly With Unobstructed Return Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional returnable rail devices restrict the length and strength of telescopic devices due to limited sliding stroke and obstruction of the buckling mechanism, which reduces the overall telescoped length and strength when the inner rail is returned.
Innovation Solution
A rail assembly with an outer rail, middle rail, and retrieving unit, featuring a sliding mechanism with a buckling projection and elastic parts that allow the middle rail to extend over the buckling projection, increasing the sliding scope and length, and incorporating a buffer unit for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the buckling mechanism is disposed between the outer rail and middle rail, then the inner rail can be returned, but the middle rail is obstructed and cannot extend sufficiently, reducing the overall telescoped length
Solution Approach 1:
The buckling mechanism is extracted from its conventional position between the outer rail and middle rail, and repositioned to engage only with the inner rail. This allows the middle rail to extend fully without obstruction, while the buckling mechanism remains functional for returning the inner rail through engagement with its dedicated buckling groove.
2Strength
If the buckling mechanism obstructs the middle rail, then the inner rail returning function is achieved, but the strength of the telescopic device is reduced
Solution Approach 1:
The buckling mechanism is segmented into separate functional components: the buckling projection on the inner rail and the corresponding buckling groove in the outer rail. This segmentation allows the middle rail to maintain full structural integrity and length, while the inner rail's buckling groove provides the necessary engagement point for the returning function without compromising overall device strength.
3Duration of action of moving object
If the middle rail length is decreased to accommodate the buckling mechanism, then the returning stroke is increased, but the total length and strength of the telescopic device are decreased
Solution Approach 1:
The inner rail acts as an intermediary element with a dedicated buckling groove that mediates between the outer rail's buckling projection and the middle rail. This allows the middle rail to maintain its full length for structural strength, while the inner rail provides the necessary buckling engagement point to achieve the required returning stroke without compromising total device length.
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 enhances the overall telescoped length and strength of the rail assembly by allowing the middle rail to extend without obstruction, achieving a greater sliding scope and maintaining structural stability.
Implementation Method 1
at least one elastic part, disposed between the fixing part and the moving part
Data Source
AI summary
A rail assembly includes an outer rail, a middle rail, an inner rail, and a retrieving unit. The outer rail has an outer rail space for accommodating the middle rail, the inner rail, and the retrieving unit. The middle rail slides in the outer rail space and has a middle rail space for accommodating the inner rail. The inner rail is accommodated in the middle rail and slides in the middle rail space. The retrieving unit is assembled on one end of the outer rail space.