Paper Craft Model Assembly Using Interlocking Tabs and Slits
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Solution Overview
Problem
Existing craft models made from paper or cardboard are fragile, prone to damage from water or humidity, and often result in messy glue application and misaligned assemblies, with designs being simplistic and unengaging.
Innovation Solution
A craft model composed of two-dimensional cutouts that can be folded into three-dimensional forms using securing tabs, slits, and fold lines, with a body attachment opening allowing the three-dimensional head to be securely attached to the body, enhancing stability and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional glue methods are used to assemble craft models, then assembly is achieved, but the assembly becomes messy and misaligned
Solution Approach 1:
The patent introduces tabs and slits as intermediary mechanical features that mediate the assembly process. Instead of directly gluing surfaces together, the tabs insert into slits to provide precise alignment and positioning, eliminating the mess and misalignment issues of traditional glue methods while maintaining assembly effectiveness
Solution Approach 2:
The patent replaces the chemical bonding system (glue) with a mechanical interlocking system (tabs and slits). This substitution eliminates the messiness of glue application and the alignment difficulties associated with adhesive methods, providing a cleaner and more precise assembly process through purely mechanical means
2Ease of manufacture
If paper or cardboard materials are used for craft models, then construction is simple, but the models become fragile and prone to water damage
Solution Approach 1:
The patent applies different material properties to different parts of the craft model. The body and head portions can be made from different materials with appropriate properties for their specific functions, allowing simple construction where needed while providing enhanced durability in areas requiring structural strength and water resistance
Solution Approach 2:
The patent employs composite material construction where the craft model combines materials with different properties. This allows the model to achieve both the construction simplicity of paper/cardboard and the structural durability and water resistance of more robust materials, resolving the contradiction between ease of manufacture and reliability
3Device complexity
If simple designs are used for craft models, then construction is easy, but the appearance becomes dreary and unengaging
Solution Approach 1:
The patent divides the craft model into segmented components (body, head, and various detachable parts) that can be constructed from simple two-dimensional patterns. This segmentation allows complex three-dimensional designs to be achieved through straightforward assembly of modular elements, maintaining ease of construction while enabling engaging and detailed appearances
Solution Approach 2:
The patent transforms simple two-dimensional cutouts into three-dimensional structures through folding and assembly. This dimensional transformation allows complex and engaging designs to be created from simple flat patterns, maintaining construction ease while achieving visually interesting three-dimensional forms with detailed appearances
Data Source
AI summary
A three-dimensional craft model including a head and body is provided. More specifically, the craft model includes a two-dimensional body cutout and a two-dimensional body cutout. The cutouts can be formed into three-dimensional head and body objects by folding portions of the cutouts about fold lines and the three-dimensional objects can be held in place using one or more of securing tabs, reciprocal slots, and locking tabs. Also provided herein is a method for forming the three-dimensional craft figure, including the steps of folding portions of the body cutout across fold lines, locking one or more locking tabs on the body cutout to form the body object, folding one or more portions of the head cutout across fold lines, inserting one or more securing tabs through corresponding slots in the head cutout to form the body object, and attaching the head object to the body object.


