Curved Hook Cover Release for Compact Electronic Casings
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Solution Overview
Problem
Existing cover structures make it difficult to release the lock between a case and a cover, particularly due to shallow and narrow grooves that are hard to manipulate.
Innovation Solution
A cover design featuring a hook with a finger-putting part having a curved shape, a base part, a manipulation part, and a connecting part, all with a curved shape to facilitate easy disengagement, and chamfered ends to reduce stress concentration, allowing smooth unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a shallow and narrow groove is used for finger placement, then the lock structure is compact, but it becomes difficult to release the engagement between case and cover
Solution Approach 1:
The finger-putting part is designed with a curved surface that is depressed in the direction of loosening engagement. This curved geometry provides a comfortable finger placement area with sufficient surface area, allowing users to easily apply force to release the hook engagement between case and cover.
2Ease of operation
If the finger-putting part has sufficient surface area for easy finger placement, then unlocking becomes easier, but the hook structure becomes larger
Solution Approach 1:
The curved surface is localized specifically at the finger-putting part of the hook, providing enhanced finger placement comfort only where needed. The rest of the hook structure maintains its compact design, achieving localized improvement without overall size increase.
Data Source
Figure 1
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Figure 4
AI summary
A cover (20) is formed to cover and uncover an opening (11) of a casing (10) and includes a hook (22) formed to engage the cover with the casing. The hook includes a finger-putting part (222a) that is moved in a direction of loosening an engagement between the cover and the casing to uncover the opening. The finger-putting part has a curved shape depressed in the direction of loosening the engagement.