Integrated Claw Recess Housing Coupling for Three-Axis Stability
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Solution Overview
Problem
Conventional housing devices for electronic apparatuses have high production costs and inferior operability due to complex shapes and large numbers of parts, particularly in preventing case covers from easy release in three-axis directions.
Innovation Solution
A housing device design featuring a case main body and case cover with integrally formed recesses and claws, allowing for a simple hinge mechanism and screw fastening structure that securely couples the case cover to the main body without additional parts, ensuring stability in three-axis directions while maintaining low production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hinge structure with pin and pin stopper is used to couple case cover to case main body, then the case cover can be opened and closed, but the structure becomes complicated and production cost increases
Solution Approach 1:
The patent merges the hinge mechanism and fastening function into a single integrated structure. The first claw and second claw serve both as hinge pivots and as fastening elements that engage with recesses to secure the case cover, eliminating the need for separate pin and pin stopper components.
Solution Approach 2:
The claw structures perform multiple functions simultaneously: they act as hinges for rotation, provide fastening through engagement with recesses, and prevent easy release in multiple directions. This multi-functionality reduces the overall number of components required in the coupling mechanism.
2Reliability
If additional parts like ribs are added to prevent case cover release in direction Z, then release prevention improves, but shape becomes complicated and production cost increases
Solution Approach 1:
The patent combines the release prevention function with the existing claw-recess engagement structure. The same claws that provide hinge functionality also prevent release in direction Z through their engagement geometry, eliminating the need for separate rib structures.
Solution Approach 2:
The claw structures are designed to perform multiple functions: hinge rotation, fastening, and release prevention in direction Z. This multi-functionality achieves reliable case cover retention without adding separate structural elements like ribs.
3Reliability
If hook and hole structures are used to couple case cover to case main body, then fastening function is achieved, but number of parts increases and production cost increases
Solution Approach 1:
The patent merges the hook and hole fastening mechanisms into a single integrated claw-recess system. The first claw engages with the second recess and the second claw engages with the first recess, achieving secure fastening without requiring separate hook and hole components.
4Ease of operation
If complex hinge structure with multiple parts is used, then opening and closing function is achieved, but production cost increases
Solution Approach 1:
The patent combines the hinge mechanism and fastening structure into an integrated design where claws and recesses serve both rotational and securing functions, reducing the number of parts that need to be manufactured and assembled.
Solution Approach 2:
The爪 structures perform multiple functions including hinge rotation, fastening, and release prevention, reducing the overall component count and simplifying the manufacturing process while maintaining operational functionality.
Data Source
AI summary
In a housing device, a first wall portion 10A and a second wall portion 20A are adjacent to each other with a right angle formed therebetween when a case cover 20 is coupled to a case main body 10. A first recess 11 and a first claw 12 are integrally formed with the first wall portion 10A at a part thereof where the first wall portion 10A is butted to the second wall portion 20A. A second claw 21 and a second recess 22 are integrally formed with the second wall portion 20A at a part thereof where the second wall portion 20A is butted to the first wall portion 10A.