Slide Rail Assembly with Movable Blocking Member for Thin Profile
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Solution Overview
Problem
Current slide rail assemblies face challenges in accommodating larger chassis sizes due to the fixed stop members that occupy space, limiting the thickness of slide rails and requiring thinner designs to meet market demands.
Innovation Solution
A slide rail assembly with a movable blocking member and elastic features that allow the second rail to be blocked when extended, preventing movement along specific directions, while utilizing a synchronization member and slide assisting device for smooth and synchronized movement with the third rail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed stop member is used to block the second rail at the extension position, then the blocking function is reliable, but the thickness of the slide rail assembly increases
Solution Approach 1:
The blocking member is designed to be movable rather than fixed, allowing it to shift position based on the state of the second rail. When the second rail is extended, the blocking member moves to a first position to provide reliable blocking; when the second rail is retracted, the blocking member moves to a second position that reduces the overall thickness of the slide rail assembly. This dynamic adjustment resolves the contradiction between reliable blocking and thin profile.
Solution Approach 2:
The blocking member is configured to move in a direction that is not along the extension direction of the second rail, but rather in a perpendicular or lateral direction. This dimensional change allows the blocking function to be achieved without increasing the thickness in the original direction, effectively resolving the space occupation problem while maintaining blocking reliability.
2Length of stationary object
If the slide rail assembly is made thinner to meet market requirements, then the aesthetic and space requirements are satisfied, but the blocking function may be compromised
Solution Approach 1:
The movable blocking member dynamically adjusts its position to maintain effective blocking in a thinner overall structure. By moving between a first position (when second rail is extended) and a second position (when second rail is retracted), it ensures reliable blocking functionality without requiring increased thickness.
Solution Approach 2:
The blocking member serves multiple functions: it provides reliable blocking at the extension position, reduces the overall thickness of the assembly, and adapts to different states of the second rail. This multi-functionality allows the thin design to meet both aesthetic requirements and functional reliability.
3Length of stationary object
If a movable blocking member is used to reduce thickness, then the slide rail assembly becomes thinner, but the complexity of the structure increases
Solution Approach 1:
The blocking member is designed to move automatically based on the state of the second rail, utilizing the existing movement and force transmission mechanisms of the slide rail assembly. This automatic movement reduces the need for additional complex control mechanisms, thereby limiting the increase in structural complexity while achieving the thickness reduction goal.
Solution Approach 2:
The blocking member is configured to self-adjust its position in response to the extension and retraction of the second rail, using the forces already present in the system. This self-service capability eliminates the need for external actuators or complex control systems, maintaining structural simplicity while enabling the thickness reduction.
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
The solution enables a thinner slide rail assembly that meets market requirements by effectively blocking the second rail at the extension position, ensuring reliable engagement and smooth movement, thus accommodating larger chassis sizes without compromising functionality.
Implementation Method 1
an elastic member configured to provide an elastic force to the blocking member
Implementation Method 2
an elastic feature configured to provide an elastic force to the fastening member
Data Source
AI summary
A slide rail assembly includes a first rail, a second rail and a blocking member. The second rail is movable relative to the first rail. The blocking member is movably arranged on the first rail. When the second rail is moved relative to the first rail from a retracted position to an extension position, the second rail is blocked by the blocking member.