Slide Rail Stop Mechanism for Correct Inner Rail Insertion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional slide rail assemblies face difficulties in correctly installing the inner rails into the mediate rails due to visibility issues when the mediate rails are inside the rack, leading to potential incorrect engagement and damage during maintenance or replacement.
Innovation Solution
A slide rail assembly with a stop member and release mechanism that prevents the third rail from being inserted into the second rail until the second rail is fully pulled out, using a stop portion and guide portion to ensure correct alignment and prevent incorrect insertion, and a positioning and release member system to facilitate smooth retraction and insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the mediate rails are located inside the rack for storage, then the rack space is utilized efficiently, but the assembler cannot clearly see the installation position leading to incorrect engagement
Solution Approach 1:
The patent introduces a guide rail as an intermediary component between the rack and the chassis. The guide rail protrudes from the rack and provides visual guidance and physical alignment assistance during the installation process. This intermediary element solves the visibility problem by making the installation position clearly visible while maintaining efficient rack space utilization when the mediate rails are retracted.
2Ease of operation
If the inner rails are pulled out for maintenance without the protection device, then the maintenance operation is simple, but the inner rails may be incorrectly inserted causing damage
Solution Approach 1:
The patent implements a protection device that protrudes into the movement path of the inner rails during the pulling-out operation. This device performs preliminary anti-action by physically blocking incorrect insertion attempts before damage can occur. The block is designed to be removable or retractable, allowing simple maintenance operations while ensuring reliability by preventing incorrect installation.
3Reliability
If a protection device is added to prevent incorrect insertion, then installation reliability is improved, but the device complexity increases
Solution Approach 1:
The patent merges the protection device with existing structural elements of the slide rail assembly. The protection block is integrated into the guide rail structure or the rack framework, combining the protective function with the existing guidance and support structures. This merging approach improves installation reliability while minimizing the increase in device complexity by reusing existing components.
4Ease of operation
If the mediate rails are extended for installation, then the inner rails can be inserted, but the visibility problem persists during the insertion process
Solution Approach 1:
The patent extends the guide rail in a dimension perpendicular to the main movement direction of the mediate rails, creating a protruding structure that provides visual guidance from the front. This dimensional change allows the assembler to see the installation position clearly from the approach direction while the mediate rails remain extended for insertion capability.
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
Ensures accurate and safe installation of the inner rails by preventing incorrect engagement and damage, allowing for clear visibility and correct alignment during installation and maintenance.
Implementation Method 1
The arm has a fixed section and a resilient section extending from the fixed section. The stop portion is located at the resilient section. When the second rail is pulled out from the first rail, the second sidewall of the second rail contacts the stop portion which is moved away by the resilient section.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A slide rail assembly includes a first rail (10), a second rail (12), a third rail (14), a front support (16), a rear support (18) and a stop member (20). The second rail (12) is slidably connected to the first rail (10) and has a second path (34). The third rail (14) is slidably connected to the second path (34) of the second rail (12). The front and rear supports (16, 18) are respectively connected to the front end and the rear end of the first rail (10). The stop member (20) has a fixed section (46) and a resilient section (48) extending from the fixed section (46). The fixed section (46) is fixed to one of the front support (16) and the first rail (10). The stop portion (42) is located at the resilient section (48). When the third rail (14) is separated from the second rail (12) and the second rail (12) is retracted in the first rail (10), the stop portion (42) of the stop member (20) is located in the second path (34) of the second rail (12) so that the third rail (14) cannot be inserted into the second path (34) of the second rail (12).