Display Casing Cover Assembly With Intermediary Fixing Member
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Solution Overview
Problem
The existing assembly method for display casings, where plastic outer covers with hooks are combined with metal back covers having buckling pieces, often results in hook fractures due to mismatched materials and forces, leading to a loose or failed engagement between the covers.
Innovation Solution
The design incorporates fixing members with positioning and restraining elements on the plastic outer cover, made of flexible materials, which can deform and absorb assembly forces, ensuring secure engagement without material fracture, and includes buckling members on the metal cover that align with these fixing members for stable assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If hooks of plastic outer cover are integrated by plastic injection molding and combined with metal back cover by punching, then the casing can be assembled, but the hooks are easily fractured due to material mismatch and over stress during assembly
Solution Approach 1:
A buffering piece made of plastic material is introduced as an intermediary component between the metal back cover and the plastic outer cover. This buffering piece absorbs the reaction force generated during assembly, preventing direct transmission of excessive stress to the hooks. The buffering piece acts as a mediator that reconciles the material mismatch between metal and plastic components, eliminating the hook fracture problem while maintaining the assembled structure.
2Stability of the object's composition
If force is applied to engage hooks into buckling pieces, then the covers can be combined, but the reaction force causes hook fracture due to material difference
Solution Approach 1:
The buffering piece is pre-installed on the metal back cover before the plastic outer cover is assembled. This buffering piece provides beforehand cushioning by absorbing the reaction force that will be generated during the engagement process. The plastic material of the buffering piece is specifically selected to provide appropriate buffering capacity, protecting the hooks from excessive stress while ensuring stable combination of the covers.
3Productivity
If hooks are pushed to move buckling pieces for engagement, then assembly can be completed, but the downward force and reaction force cause hook fracture
Solution Approach 1:
The buffering piece serves as a mediator that decouples the interaction between the plastic outer cover and metal back cover during assembly. When hooks are pushed to engage the buckling pieces, the buffering piece absorbs the reaction force, allowing the assembly process to proceed efficiently without compromising hook integrity. This intermediary component enables high-speed automated assembly while preventing hook fracture.
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
This solution prevents fractures during assembly, enhances assembly efficiency by allowing quick and stable engagement of the covers, and improves the structural integrity of the display casing.
Implementation Method 1
made of a flexible material, which can deform and absorb assembly forces, preventing fractures
Data Source
AI summary
A display casing has a first cover, a second cover, and a fixing member between the first cover and the second cover to serve as a combination medium therebetween. The fixing member is engaged with two buckling pieces of the first cover by a positioning pin and a restraining portion, and the second cover is then buckled on the fixing member by a buckling member to be combined with the first cover. The material of the fixing member is the same as that of the second cover but is different from, the material of the first cover. Therefore, when the buckling member of the second cover is buckled on the fixing member, the risk of the fracture of the fixing member under the stress of the buckling member can be avoided.