Nested Three-Rail Slide Assembly for Heavy Server Chassis Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current slide rails face challenges in supporting heavier server chassis due to reduced mounting space, as they are designed to meet industrial standards, necessitating an enhancement in supporting capability while accommodating limited space constraints.
Innovation Solution
The design incorporates a slide rail assembly with a longitudinal body and extended U-shaped supporting structures featuring ball raceways, allowing for increased supporting capability through a three-rail configuration where each rail is movable within the passage of the adjacent rail, enhancing stability and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the slide rail is designed to meet industrial standard specifications, then the mounting space is reduced, but the supporting capability is insufficient for heavier server chassis
Solution Approach 1:
The slide rail assembly employs a nested three-rail configuration where the second rail is movable within the first rail, and the third rail is movable within the second rail. Each rail contains ball raceways that accommodate ball bearings, creating a nested structure that maximizes supporting capability within limited mounting space. This nested arrangement allows multiple rails to occupy overlapping spatial volumes, effectively increasing load-bearing capacity without proportionally increasing the external dimensions.
Solution Approach 2:
The invention transitions from a conventional single-rail or dual-rail design to a three-rail assembly with complex spatial relationships. The rails are arranged in different dimensional orientations with the second rail movable within the first rail's passage, and the third rail movable within the second rail's passage. This multi-dimensional arrangement distributes mechanical loads across multiple contact points and ball raceways, significantly enhancing supporting capability while maintaining compact overall dimensions suitable for standard mounting spaces.
2Adaptability or versatility
If the server chassis is made heavier to accommodate more equipment, then the functional capability is improved, but the existing slide rail cannot support the increased weight
Solution Approach 1:
The nested three-rail structure with ball raceways distributed across multiple rails provides progressive load distribution. As server chassis weight increases to accommodate more equipment, the load is distributed across the first, second, and third rails through the nested arrangement, with each rail contributing to the overall load-bearing capacity. The ball bearings within the ball raceways reduce friction and enable smooth movement even under heavy loads.
Solution Approach 2:
The invention combines multiple rail structures into a unified three-rail assembly where the first, second, and third rails work together as an integrated support system. The ball raceways of different rails are positioned to work in conjunction, with the third ball raceway of the second rail facing the second inner ball raceway of the third rail, creating a combined load-bearing structure that can support heavier server chassis while maintaining smooth operational movement.
Data Source
AI summary
A slide rail comprises a longitudinal body and a pair of longitudinal supporting structures extended from two sides of the longitudinal body. Each of the supporting structures has a U-shaped cross section and includes a first supporting arm and a second supporting arm bent relative to the first supporting arm. A ball raceway is formed on one of the first supporting arm and the second supporting arm.