Telescoping Rack Rail Latch for Tool-Free Height Adjustment
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Solution Overview
Problem
Existing rail systems for supporting electronic equipment in racks require tools for installation and adjustment, which can be cumbersome and inefficient, especially when accommodating devices of varying heights within standardized rack specifications.
Innovation Solution
A telescoping rail system with latch assemblies featuring retractable pins and pivotally secured latch arms, allowing for toolless installation and adjustment between vertical rack rails, accommodating different hole sizes and enabling incremental height adjustments without the need for tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional screwed or bolted rails are used to attach to the rack, then the rails can be securely attached, but the installation process becomes cumbersome and requires tools
Solution Approach 1:
The patent replaces the traditional mechanical screw or bolt fastening system with a spring-loaded pin insertion system. The spring mechanism automatically provides insertion force and locking force, eliminating the need for threaded fasteners and manual tool operation while maintaining secure attachment to the rack
Solution Approach 2:
The spring-loaded pin assembly is self-actuating - when the rail is inserted into the rack, the spring automatically pushes the pin into the rack hole and engages the latch arm, creating a secure attachment without requiring external tools or manual intervention beyond the initial insertion motion
2Adaptability or versatility
If rails are fixed at specific heights to match standardized rack specifications, then the rails provide stable support, but they cannot accommodate devices of varying heights
Solution Approach 1:
The patent makes the rail height position dynamic rather than fixed. The spring-loaded pin can engage with multiple holes at different heights in the rack, allowing the rail to be repositioned vertically to accommodate devices of varying heights while maintaining stable support at each selected position
Solution Approach 2:
The rack structure is segmented with multiple holes at standardized intervals, and the rail can engage with any of these segments. This segmentation allows flexible height adjustment while maintaining structural integrity and stability at each engagement point
3Adaptability or versatility
If rails are made adjustable to accommodate various device heights, then versatility improves, but the installation and adjustment mechanisms become more complex
Solution Approach 1:
The patent merges the positioning function and the locking function into a single integrated spring-loaded pin mechanism. The same spring mechanism that provides insertion force also provides locking force, eliminating the need for separate adjustment mechanisms and reducing overall system complexity despite the adjustable height capability
4Productivity
If standard screwed rails are used, then the attachment method is simple, but the installation time and tool requirements increase
Solution Approach 1:
The patent replaces the multi-step screw fastening process with a single-motion spring-loaded pin insertion system. The spring mechanism automatically provides both insertion and locking forces, eliminating the need for threading, tightening, and tool operation, thereby dramatically reducing installation time and increasing productivity
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
Enables secure, tool-free installation and adjustment of rails within racks, improving installation efficiency and stability, while accommodating various device heights and sizes, and enhancing stability by preventing sagging and bending issues.
Implementation Method 1
The latch arm is pivotally secured to the rail body, distally extends from the flange, and is biased toward a latched position
Implementation Method 2
The retractable pin distally extends from each end and is biased toward a distally extended position
Data Source
AI summary
A rail for toolless installation between first and second vertical rack rails. The rail comprises a telescoping rail body having a first and second ends, and an inside surface having a shelf, wherein a latch assembly is disposed at each end of the rail body. Each latch assembly comprises a flange secured to an end of the rail, a latch arm, a release handle, and a retractable pin. The latch arm is pivotally secured to the rail body, distally extends from the flange, and is biased toward a latched position. The release handle is on the inside surface of the rail body for movement from a latched position to an unlatched position. The retractable pin distally extends from each end and is biased toward a distally extended position, wherein the pin is stepped from a first diameter portion to a second larger diameter portion for adapting to different sized holes.