Sliding Track Latch Assembly for Smooth Rail Engagement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sliding track assemblies lack a simple and cost-effective releasable engagement mechanism that is easy to use and smooth in operation.
Innovation Solution
A sliding track assembly with a latch member and a lock member, featuring a resilient or compressible portion with asymmetric slopes, allows the third rail to move with the second rail when engaged and freely when disengaged, enabling easy extension and retraction without requiring tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional sliding track assembly uses a simple telescopic rail structure, then the device complexity is reduced and manufacturing cost is lowered, but the ease of operation deteriorates because existing releasable engagement mechanisms are not simple or cost-effective to produce
Solution Approach 1:
The engagement mechanism is divided into distinct functional segments: the resilient portion with asymmetric slopes on the first rail, and the corresponding engagement feature on the second rail. This segmentation allows each component to be independently optimized for both manufacturing simplicity and operational performance, resolving the contradiction between low cost and smooth operation.
Solution Approach 2:
The resilient portion is designed with asymmetric slopes where the first slope has a greater angle than the second slope. This asymmetric geometry enables the mechanism to provide both easy engagement (during extension) and controlled disengagement (during retraction) using simple geometric forms that are cost-effective to manufacture while ensuring smooth operation.
2Ease of operation
If a releasable engagement mechanism is added to allow easy extension and retraction, then the ease of operation is improved, but the device complexity increases and manufacturing cost rises
Solution Approach 1:
The resilient portion automatically engages with the engagement feature on the second rail during extension and can be easily disengaged during retraction without requiring external tools or complex actuating mechanisms. The asymmetric slope geometry enables the mechanism to serve itself - the engagement and disengagement actions are performed by the user's natural pulling and pushing motions, eliminating the need for additional complexity.
Solution Approach 2:
The resilient portion changes its effective engagement parameter (contact point and force distribution) based on the direction of motion. During extension, the first slope engages to guide and assist movement; during retraction, the second slope allows easy release. This parameter change based on motion direction achieves easy operation without requiring a complex multi-component mechanism.
3Ease of manufacture
If the resilient portion has symmetric slopes, then the manufacturing precision is improved and production is simplified, but the ease of operation deteriorates because asymmetric slope angles are needed to facilitate easy engagement and disengagement
Solution Approach 1:
The resilient portion is deliberately designed with asymmetric slopes where the first slope has a greater angle than the second slope. This asymmetric geometry is key to the invention - it enables easy engagement during extension (first slope guides the engagement) and easy disengagement during retraction (second slope allows release) while remaining simple to manufacture as a single molded or formed component.
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 provides a smooth and effortless operation with reduced effort, as the asymmetric design of the latch member facilitates easy assembly and disassembly, making the sliding track assembly more user-friendly and cost-effective.
Implementation Method 1
the latch member has at least one resilient or/and compressible portion rising above and between the inner and outer sides of the base of the latch member
Data Source
AI summary
A sliding track assembly including a first, second and third rails, the second rail slidably mounted on the first rail, and the third rail slidably mounted on the second rail, so that the second and third rail can move relatively to the first rail and to each other. The sliding tract assembly also includes a latch member mounted on the third rail near its outer end and having two resilient or/and compressible portions each having asymmetric inward and outward facing slopes, and a lock member mounted or formed on the second rail near its outer end. The third rail can move together with the second rail when the latch member and the lock member are engaged, and the third rails can move freely by itself when the latch member and the lock member are disengaged.