Slide Rail Stopper Mechanism With Auxiliary Slider Over-Travel Stop
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Solution Overview
Problem
Existing stopper mechanisms for slide rails in large equipment are prone to destruction when heavy units are pulled out, leading to potential impacts and ejections, as they rely solely on a rail stopper that can be overwhelmed by the force, causing the unit to fall out of the main body.
Innovation Solution
A stopper mechanism featuring an auxiliary slider attached to the housed unit that moves along the pull-out direction, stopping at a position closer to the main body than the maximum pull-out position, preventing the unit from being pulled out further and thus avoiding impact on the rail stopper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rail stopper is used to prevent the housed unit from coming out, then the stopper can resist loads at a certain level, but if an operator pulls out a heavy unit with force, the impact force will destroy the stopper and the unit will come flying out
Solution Approach 1:
The stopper function is segmented into two independent components: the rail stopper (fixed to the main body) and the auxiliary slider (attached to the housed unit). This segmentation allows each component to handle specific aspects of the stopping function, distributing the impact forces and preventing overload on a single stopper mechanism.
Solution Approach 2:
The auxiliary slider acts as an intermediary between the housed unit and the rail stopper. It moves independently along the pull-out direction and stops at a predetermined position before the housed unit reaches the rail stopper, thereby mediating the interaction and preventing direct impact on the rail stopper.
2Ease of operation
If the housed unit is allowed to pull out to the maximum position, then the operator has full access to the unit, but the unit may come flying out if the stopper is destroyed
Solution Approach 1:
The auxiliary slider performs a preliminary stopping action before the housed unit reaches the maximum pull-out position. It stops at a predetermined position that is closer to the main body than the maximum pull-out position, preventing the unit from coming flying out while still allowing sufficient accessibility for maintenance operations.
3Reliability
If the auxiliary slider stops the housed unit before the maximum pull-out position, then the rail stopper is protected from impact, but the unit cannot be pulled out completely
Solution Approach 1:
The solution moves the stopping function from the depth dimension (along the pull-out direction) to a different operational dimension. The auxiliary slider stops the housed unit in the pull-out direction at a predetermined position, while the housed unit can still be fully accessed by moving it perpendicular to the pull-out direction or by using the available travel distance for maintenance operations.
Data Source
AI summary
A stopper mechanism of a slide rail for protecting a slide rail that is attached to a housed unit has an auxiliary slider that moves to a first position so as to become closer to the housed unit in a state where the housed unit is housed in a main body, and which moves to a second position so as to become more distant from the housed unit in a state where the houses state has been pulled out of the main body, and a stop unit configured to stop the pulling-out of the housed unit by stopping the auxiliary slider that has moved to the second position.