Micro linear slide rail assembly and slider thereof
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Solution Overview
Problem
Conventional micro linear slide rail assemblies face challenges in securely mounting the frame to the main body due to size constraints, making it difficult to use bolts and resulting in complex assemblies that are hard to produce and inconvenient for miniaturized sliders.
Innovation Solution
A micro linear slide rail assembly design featuring a frame that is elastically mounted to the main body using engaging portions and end caps, eliminating the need for bolts and allowing for easy production and assembly, with the frame being restrained by lower retaining members and end caps to ensure firm combination with the main body and end caps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If bolts are used to fix the frame to the main body, then the connection is strong and stable, but the assembly becomes complex and difficult to produce for micro sliders
Solution Approach 1:
The patent integrates the frame and main body into a unified structure where the frame is elastically mounted directly to the main body through engaging portions. This merging eliminates the need for separate bolts and multiple components, reducing assembly complexity while maintaining connection strength through the elastic engagement mechanism.
Solution Approach 2:
The frame incorporates lower retaining members with elastic deformation capability that enable self-mating engagement with the main body. The elastic engaging portions automatically lock into place without requiring external fastening tools or bolts, allowing the structure to assemble itself while maintaining strong bonding.
2Reliability
If the frame structure is made complex with many components to achieve stable mounting, then the mounting stability improves, but the injection production becomes difficult and assembly is inconvenient
Solution Approach 1:
The frame is segmented into functional zones: lower retaining members with elastic engaging portions for mounting stability, and upper portions for structural support. This segmentation allows each zone to be optimized independently - the lower part provides stable engagement while the overall structure remains suitable for injection molding.
Solution Approach 2:
The patent changes the physical state of the lower retaining members by designing them with elastic deformation capability. This parameter change allows the frame to transition from a rigid structure requiring complex assembly to a flexible structure that can be easily molded and assembled through elastic engagement, improving both manufacturability and mounting stability.
3Volume of moving object
If the main body and frame are made small for micro slider application, then the miniaturization is achieved, but it becomes difficult to find a stable plane to lock bolts
Solution Approach 1:
The patent replaces the bolt-based mechanical fastening system with an elastic engagement system. The lower retaining members with elastic engaging portions provide mounting stability through elastic deformation and geometric interlocking, eliminating the need for bolts entirely. This substitution enables miniaturization while maintaining assembly feasibility.
Solution Approach 2:
The frame transitions from a static rigid structure to a dynamic elastic structure. The lower retaining members can deform elastically during assembly and then maintain stable engagement through their elastic recovery. This dynamic behavior allows the micro slider to achieve stable mounting without requiring large flat surfaces for bolt placement.
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 simplifies the structure, facilitates easy injection production, and provides stable longitudinal and lateral restraint, ensuring the frame remains securely attached during rolling, preventing loosening and deformation, thus enhancing the bonding strength and assembly convenience for micro sliders.
Implementation Method 1
a frame (3) mounted beneath the main body (2)... The two lower retaining members (31) of the frame are elastically opened to be mounted to the main body (2) in a bottom-up direction
Data Source
AI summary
A micro linear slide rail assembly and a slider are disclosed. The slider straddles a slide rail. A rolling member is disposed between the slide rail and the slider. The slider is linearly displaced on the slide rail by rolling of the rolling member. The slider includes a main body, a frame coupled to the main body, and two end caps connected to two opposite ends of the main body. The slider has a first unloaded track surface. The first unloaded track surface surrounds an accommodating area. A first engaging portion extends from a lower edge of the accommodating area. The frame has a second unloaded track surface. The frame is mounted to the main body through a second engaging portion to be engaged with the first engaging portion. The first unloaded track surface and the second unloaded track surface are combined to form an unloaded path.