Compact Lever Mechanism for Server Sled Insertion and Removal
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Solution Overview
Problem
Existing lever mechanisms for server sleds require longer lengths to provide sufficient force for insertion and removal, occupying excessive space and inefficiently translating rotational force.
Innovation Solution
A lever mechanism utilizing a spur gear and ejector component with internal gearing to translate rotational force efficiently, allowing for compact design and enhanced force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If longer levers are used to provide sufficient force for insertion and removal, then the force capability is improved, but the space occupied by the lever increases
Solution Approach 1:
A cam mechanism is introduced as an intermediary between the lever and the sled body. The cam converts the rotational motion of a compact lever into linear pushing motion that applies force to the sled, enabling sufficient insertion/removal force without requiring a long lever arm.
Solution Approach 2:
The mechanism changes the motion parameter from direct linear lever movement to rotational cam movement. This parameter transformation allows a short lever to generate the necessary force through the mechanical advantage provided by the cam's geometric profile.
2Device complexity
If traditional mechanical devices are used to translate rotational force, then the mechanism is simple, but the force translation efficiency is poor
Solution Approach 1:
The cam acts as a force translation intermediary that efficiently converts rotational lever motion into linear pushing force. This intermediary mechanism minimizes energy loss by directly transmitting force through the cam's contact surface to the sled, rather than through multiple mechanical stages.
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 mechanism provides sufficient force for inserting and removing server sleds while maintaining a compact size, improving operational efficiency and reducing space requirements.
Implementation Method 1
A lever mechanism is provided that uses an internal spur gear in conjunction with gearing of an ejector structure to assist in inserting or releasing the sled
Implementation Method 2
The lever mechanism provides force for inserting and removing a sled from a bay of a chassis
Data Source
AI summary
A compact lever mechanism for assisting in removing and inserting a sled in a chassis is disclosed. The lever mechanism has a longitudinal lever member. A spur gear having gear teeth is coupled to one end of the longitudinal lever member. An ejector component is rotatably connected to the sled. The ejector component has a frame defined by an internal gear support, a first support arm, and a second support arm. The spur gear is positioned within the frame and engages the internal gear support to rotate the ejector component. The first support arm includes a tab engaging a flange of the chassis to apply force to remove the sled from the chassis when rotated in a first direction. The second support arm includes a second tab engaging a cutout in the chassis to apply force to insert the sled in the chassis when rotated in a second direction.