Looped Frame Assembly for Tool-Free Hanging Decorative Accessories
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Solution Overview
Problem
Conventional hanging decorative accessories require tools for assembly, making them unsuitable for children to use independently and prone to assembly issues if components are missing.
Innovation Solution
A hanging decorative accessory design featuring a looped frame with an inner groove and multiple fixing segments, allowing the base card to be mounted without tools, enabling children to assemble it independently and ensuring stability even if components are missing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two looped frames are fixed by multiple screws to clamp the base card, then the assembly is firm and stable, but the assembly requires tools and small screws that are difficult for children to handle and prone to being lost
Solution Approach 1:
The patent extracts the screws from the assembly system entirely, replacing them with a groove-based retention mechanism. The inner groove formed by the abutting wall and extending wall provides a tool-free assembly path that eliminates the need for fasteners, making the product child-friendly while maintaining structural integrity through geometric constraint rather than mechanical fastening.
Solution Approach 2:
The patent replaces the screw-based mechanical fastening system with a groove-based geometric constraint system. The abutting wall and extending wall create a recessed groove that mechanically retains the base card through shape complementarity rather than threaded fasteners, eliminating the need for tools and small components.
2Reliability
If multiple screws are used to fix the looped frames, then the base card is securely clamped, but the structure becomes more complex and requires more components that can be lost
Solution Approach 1:
The patent removes multiple screw components from the assembly, replacing them with an integrated groove structure formed directly in the looped frame. This extraction of fasteners simplifies the bill of materials and assembly structure while maintaining secure retention of the base card through the geometric design of the inner groove.
Solution Approach 2:
The patent merges the functions of multiple separate screw fasteners into a single integrated groove structure. The inner groove, formed by the abutting wall and extending wall, combines the retention functions that would otherwise require multiple discrete fastening components, reducing overall structural complexity.
3Reliability
If screws are used to assemble the decorative accessory, then firm fixation is achieved, but children cannot assemble it independently without adult help
Solution Approach 1:
The patent enables the product to be assembled by its intended users (children) without requiring external assistance or specialized tools. The groove-based design allows direct manual insertion and retention of the base card, making the assembly process self-service capable while still achieving firm fixation through the geometric constraint of the inner groove structure.
Data Source
AI summary
A hanging decorative accessory has a looped frame and a base card. The looped frame has an inner groove and multiple fixing segments. The periphery of the base card engages the inner groove of the looped frame and is fixed by the fixing segments to avoid detaching from the inner groove. For assembly, the user only needs to mount a side of the periphery of the base card between the abutting wall and the fixing segments of the looped frame, and then pushes the whole periphery into the inner groove of the looped frame to complete the assembly. Furthermore, as the hanging decorative accessory has a looped frame and a base card, the structure is simple and the hanging decorative accessory is still capable of being assembled firmly even though some components are missing.