Compact slide assemblies

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Solution Overview

Problem

There is a demand for compact slide assemblies with improved mounting arrangements that can be easily attached to server racks without tools, capable of supporting significant loads while maintaining a small cross-sectional size, and accommodating various server rack depths.

Innovation Solution

The design incorporates a telescopic slide assembly with double wall portions for increased strength and load-carrying capacity, featuring a mounting arrangement with movable brackets and pin assemblies that allow tool-less attachment to server racks, enabling length adjustment to fit different rack depths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the cross-sectional size of the slide assembly is reduced, then space utilization is improved, but the load-carrying capacity is reduced

Engineering Contradiction:
Improvecross-sectional sizeVSAvoidload-carrying capacity
Core Design Contradiction:
Volume of moving objectVSStrength

Solution Approach 1:

The slide assembly employs a telescopic design with nested slide segments (outer slide segment, intermediate slide segment, inner slide segment) that fit within each other. This nesting arrangement allows the slide assembly to maintain a compact cross-sectional profile while providing sufficient structural depth to support substantial loads through the distributed bearing surfaces across multiple segments.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent transitions from a single-wall thickness design to a multi-layered wall structure in the bearing surfaces. The upper and lower portions of each slide segment comprise two layers of material, creating an effective wall thickness greater than the side wall portion. This dimensional change in the bearing surfaces increases load-carrying capacity without proportionally increasing the overall cross-sectional dimensions.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If traditional mounting arrangements are used, then structural simplicity is maintained, but tool-less mounting and adaptability to various rack depths are lost

Engineering Contradiction:
Improvemounting flexibilityVSAvoidmounting arrangement complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mounting arrangement incorporates movable brackets with pin assemblies that can transition between retracted and extended positions. The pins are biased to a first position and movable to a second position, enabling the mounting arrangement to adapt to different rack configurations. This dynamic capability allows tool-less mounting while accommodating various server rack depths without requiring multiple fixed-length mounting solutions.

Inventive Principle:
Principle #15Dynamics

3Strength

If the wall thickness is increased throughout the slide assembly, then strength is improved, but the cross-sectional size increases

Engineering Contradiction:
Improvestructural strengthVSAvoidcross-sectional size
Core Design Contradiction:
StrengthVSVolume of moving object

Solution Approach 1:

The slide assembly implements differential wall thickness distribution: the upper and lower portions (which bear the load) comprise two layers of material providing enhanced effective wall thickness, while the side wall portion maintains a thinner single-layer construction. This local quality differentiation ensures that material is concentrated where it is most needed for load-bearing functions, maintaining structural strength while minimizing overall cross-sectional dimensions.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS9670956B2Compact slide assemblies
Publication Date: 2017.06.06 JONATHAN MFG CORP
  • US9670956B2 patent drawing
  • US9670956B2 patent drawing
  • US9670956B2 patent drawing

AI summary

Slide assemblies that include at least an inner slide segment and an outer slide segment. Many of the slide assemblies also include an intermediate slide segment interposed between the inner slide segment and the outer slide segment. The outer slide segment is constructed from a bent piece of material having a substantially uniform wall thickness. The outer slide segment is formed to have a wall portion, an upper portion and a lower portion. Each of the upper portion and lower portion include two layers of the piece of material. A mounting assembly for a slide assembly includes at least one bracket having a first pin and a second pin movable relative to the first pin. The second pin can surround and slide upon the first pin and can be biased to a first position and movable to a second position relative to the first pin.