Lever Mechanism for Easy Electronic Circuit Unit Removal
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Solution Overview
Problem
Existing electronic circuit unit insertion and removal mechanisms are not user-friendly, particularly when detaching the unit from a shelf, as they require complex operations involving stopper rotation and lever manipulation, leading to low ease of use.
Innovation Solution
The mechanism incorporates a rotatable lever member with a locking mechanism that allows for easy insertion and removal by leveraging principles, with a locking member that disables second-direction rotation after insertion, enabling simple detachment by lifting the locked state with a single finger operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism with multiple rotation steps is used to secure the electronic circuit unit in the shelf, then the reliability of the connection is improved, but the ease of operation deteriorates due to complex detachment procedures
Solution Approach 1:
The locking mechanism is divided into two independent functional parts: a locking member that engages with a groove to prevent accidental detachment, and a lever member that provides the primary locking engagement. This segmentation allows each component to perform its specific function independently, maintaining connection reliability while simplifying the overall operation sequence
Solution Approach 2:
The conventional approach requires rotating the stopper first, then the lever. This invention inverts the operational logic by designing the lever member to be operable independently after insertion, allowing users to detach units by simply pulling the lever without needing to perform preliminary stopper rotation, thus reversing the complexity burden
2Ease of operation
If a rotatable lever mechanism is used for insertion and removal, then the ease of operation is improved, but the device complexity increases due to additional locking components
Solution Approach 1:
The locking member and lever member are merged into a single integrated assembly where the locking member is positioned on the lever member. This combination allows both locking functions to be achieved through a unified structure rather than separate mechanisms, reducing overall device complexity while maintaining ease of operation
Solution Approach 2:
The lever member serves multiple functions: it acts as both the insertion/removal actuator and the primary locking element through its engagement with the shelf groove. The locking member provides secondary security. This multi-functionality reduces the need for additional specialized components, simplifying the overall mechanism
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 enhances the ease of use for detaching electronic circuit units by simplifying the operation, allowing users to easily pull the unit out of the shelf with intuitive finger operation, reducing the risk of incorrect detachment and improving accessibility of ports and alarm lamps.
Implementation Method 1
the lever member urging the electronic circuit unit main body toward a depth side of the shelf by a principle of leverage by making contact with part of the shelf when the lever member is rotated in a first direction about the first rotating shaft and urging the electronic circuit unit main body toward a front side of the shelf by the principle of leverage
Data Source
AI summary
An electronic circuit unit includes an electronic circuit unit main body that is housed in a shelf, a first rotating shaft that is provided on a front side of the electronic circuit unit main body, a lever member rotatably provided about the first rotating shaft for urging the electronic-circuit-unit-main-body toward a depth side of the shelf, a second rotating shaft that is provided in the lever member and extends parallel to the first rotating shaft, a locking member rotatably provided about the second rotating shaft. When the lever member is rotated in a first direction about the first rotating shaft, the electronic circuit unit main body is moved toward a depth side of the shelf. When the lever member is rotated in a second direction, opposite to the first direction, the electronic circuit unit main body is moved toward a front side of the shelf.