Storage Tray Handle Camming Mechanism for Level Holding
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Solution Overview
Problem
Existing storage trays in information handling systems often experience imbalance in weight distribution, leading to instability during insertion and removal from server chassis, which can result in tilting and difficulty in maintaining a horizontal position.
Innovation Solution
The implementation of a handle mechanism with camming slots and hinge point posts, including stop, drop, and rotate points, along with a wire spring to maintain the tray's level by preventing rotation and ensuring horizontal alignment during insertion and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple handle mechanism is used, then device complexity is reduced, but stability and level holding capability deteriorate
Solution Approach 1:
The handle mechanism is segmented into distinct functional components: a camming post with camming surface, a camming slot with defined walls, and a wire spring. Each component performs a specific function in the level-holding sequence, allowing the system to achieve complex stability control through simple, modular parts rather than a monolithic complex mechanism.
Solution Approach 2:
The mechanism uses dynamic interaction between the camming post and camming slot walls to provide different constraints at different positions. As the handle moves through insertion, removal, and leveling motions, the camming post contacts different walls of the camming slot to provide appropriate guidance and stability control at each stage of motion.
2Stability of the object's composition
If the handle mechanism includes multiple camming points and springs, then stability and level holding capability are improved, but device complexity increases
Solution Approach 1:
The wire spring automatically engages and disengages with the camming post based on handle position, providing self-regulating level-holding force. When the handle is in the lowered position, the spring is compressed and pushes the camming post against the camming slot wall to maintain horizontal alignment. When the handle is raised, the spring expands and releases the constraint, allowing free movement. This eliminates the need for complex control systems.
3Manufacturing precision
If the camming slot is designed with multiple walls and points, then manufacturing precision is improved for level holding, but ease of manufacture deteriorates
Solution Approach 1:
The camming slot is formed as a three-dimensional feature within the frame structure, utilizing the depth dimension to create the multi-wall configuration. Rather than requiring complex multi-axis machining, the slot can be formed through conventional milling or routing operations that create the necessary walls and camming surfaces from a single block of material or integrated frame section.
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 handle mechanism effectively maintains the storage tray's horizontal position, ensuring stable insertion and removal from the server chassis by balancing weight distribution and preventing tilting.
Implementation Method 1
along with a wire spring to maintain the tray's level by preventing rotation
Implementation Method 2
a handle mechanism with camming slots and hinge point posts, including stop, drop, and rotate points
Data Source
AI summary
A storage tray for an information handling system includes a frame and a handle. The frame includes a camming slot, which in turn includes a stop point, a drop point, and a rotate point. The handle in physical communication with the frame and includes a camming post located within the camming slot. The camming post is located at the stop point when the handle is in a default position. The camming post prevents rotation of the handle when the camming post is at the stop point. The camming post is located at the drop point when the handle is pushed downward. The camming post is located at the rotate point when the handle is in a closed position.