Bracket device for rack system and slide rail assembly
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Solution Overview
Problem
The existing bracket devices in rack systems and slide rail assemblies face safety concerns due to potential unlocking under shock forces, leading to potential damage or injury, as the fastening member can be dislodged from the locking position, causing the slide rail assembly to fall or the carried object to collide with the mounting member.
Innovation Solution
The proposed bracket device incorporates a fastening member with a supporting part that maintains a locking position through an elastic force, ensuring the second vertex of the supporting part aligns with the mounting member's vertex, and features a transverse part adjacent to the post surface to prevent unlocking during shocks, along with a second rail that blocks the fastening member's movement from the locking position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the fastening member is designed to be movable relative to the side wall for locking and unlocking, then the ease of operation is improved, but the reliability deteriorates due to potential unintended unlocking under shock forces
Solution Approach 1:
The patent applies preliminary anti-action by designing the fastening member with a transverse part that abuts against the post surface to preemptively counteract shock forces before they can cause unintended unlocking. The supporting part with vertices positioned at specific longitudinal locations creates a pre-positioned geometric constraint that prevents the fastening member from moving away from the locking position under external shocks, thus preventing the harmful effect before it occurs.
2Stability of the object's composition
If the fastening part is positioned to lock the post, then the stability is improved, but the object-generated harmful factors worsen due to the fastening member hitting the post under shock forces
Solution Approach 1:
The patent converts the potential harmful impact into a beneficial geometric constraint. The supporting part with specifically positioned vertices transforms what would be a harmful collision into a useful abutment relationship where the vertices contact the post surface to prevent unwanted movement. The transverse part's contact with the post surface converts potential impact damage into a stable geometric locking mechanism that enhances mounting reliability.
3Ease of manufacture
If the mounting member is inserted into the mounting hole with tolerances, then the ease of manufacture is improved, but the reliability deteriorates due to possible backward movement under shock forces
Solution Approach 1:
The patent applies parameter changes by introducing specific geometric parameters (vertex positions at defined longitudinal locations) that transform the tolerance-based assembly into a precision-constrained structure. The supporting part's vertices are positioned at specific longitudinal locations relative to the mounting member, creating a geometric parameter system that eliminates backward movement while maintaining ease of manufacture through standard geometric features.
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
This configuration enhances the reliability and safety of the slide rail assembly by preventing unintended unlocking and ensuring the fastening member remains locked, even under strong forces, thereby preventing damage and injury.
Implementation Method 1
the fastening member is configured to be located at a locking position or be moved away from the locking position... when the fastening member is located at the locking position
Data Source
AI summary
A bracket device for a rack system includes a side wall, a mounting member and a fastening member. The mounting member is arranged adjacent to the side wall. The mounting member has a first vertex. The fastening member is moveable relative to the side wall. The fastening member includes a supporting part having a second vertex. When the fastening member is located at a locking position, the second vertex of the supporting part and the first vertex of the mounting member are substantially located at a same longitudinal position along a longitudinal direction.