Slider Assembly Middle Retaining Member Connection
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Solution Overview
Problem
Conventional slider assemblies face challenges in maintaining sufficient connecting strength and ease of assembly as slider rigid bodies increase in length, leading to potential rolling element displacement and damage, with existing solutions either limiting rigidity improvement or increasing production complexity and cost.
Innovation Solution
A slider assembly design featuring a middle retaining member connected to a protrusion with positioning portions along the axial direction and transverse direction, allowing for enhanced connecting strength and simplified manufacturing and assembly, using elastic materials and precise positioning mechanisms to secure the middle retaining member along the entire length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the slider rigid body is made increasingly longer, then the load capacity and stability are improved, but the connecting strength of middle retaining members becomes insufficient and assembly complexity increases
Solution Approach 1:
The patent transitions from end-portion connection (one-dimensional) to middle-section connection (two-dimensional insertion through the slider body). The middle retaining member is inserted through the slider body at its middle section, creating a three-dimensional connection that provides superior structural support and connecting strength without increasing assembly complexity
Solution Approach 2:
The middle retaining member serves dual functions: it maintains the circulation channel structure and simultaneously provides self-supporting rigidity through its middle-section insertion into the slider body. This eliminates the need for additional support structures or complex assembly procedures
2Stability of the object's composition
If high-rigidity material components are used to support middle retaining members, then rigidity is improved, but the number of components and production cost increase
Solution Approach 1:
The patent merges the support function into the slider body structure itself by creating a through-hole for middle retaining member insertion. The slider body and middle retaining member form an integrated structural system, eliminating the need for separate high-rigidity support components while maintaining structural stability
Solution Approach 2:
The patent changes the structural parameter of the slider body by introducing a through-hole at the middle section. This structural modification enables direct insertion and secure positioning of the middle retaining member, providing enhanced rigidity through geometric design rather than material selection
3Strength
If threaded through holes are made in the feet of slider rigid body to fasten middle retaining members, then connecting strength is improved, but manufacturing difficulty and production cost increase
Solution Approach 1:
The patent extracts the complex threading operation and replaces it with a simple through-hole structure. The middle retaining member is inserted through a straightforward cylindrical opening in the slider body, eliminating difficult threaded hole machining while maintaining strong mechanical connection through friction and geometric interference
Data Source
AI summary
A slider assembly configured to move on a slide rail along an axial direction without limitation in distance is provided to solve the problems of the middle retaining members of a conventional circulation maintaining device, e.g., insufficient connection rigidity and inconvenience in manufacture and assembly. The positioning portion of a middle retaining member and the positioning portion of the protrusion of a slider are connected in a direction perpendicular to both the axial direction and a transverse direction in which the protrusion projects, thereby connecting the middle retaining member and the protrusion securely and evenly along their entire lengths. The middle retaining member and the protrusion also feature ease of manufacture and assembly.