Folded Block Structure Using Tab Slit Connection
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Solution Overview
Problem
Conventional three-dimensional building blocks are heavy, non-portable, and lack user customization in design and decoration, often resulting in pre-defined toys with limited creative scope.
Innovation Solution
Fold-to-play paperboard blocks with a slit and tab connection system that allow users to create unique three-dimensional structures without additional tools or adhesives, using pre-scored and die-cut sheets that can be customized with stickers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional three-dimensional building blocks are made of solid dense material, then structural strength is improved, but weight increases making them not easily transportable
Solution Approach 1:
The patent uses paperboard material with predetermined fold lines to create hollow three-dimensional blocks. The paperboard forms thin-walled hollow structures that are lightweight yet maintain structural integrity through geometric design and folding patterns, resolving the contradiction between strength and weight.
Solution Approach 2:
The flat blanks are nested within flat packaging material, and the resulting three-dimensional blocks are hollow structures that can be stacked and stored efficiently. This nesting approach reduces transportation weight and space requirements while maintaining block strength.
2Ease of manufacture
If paper toys are pre-printed with predetermined character designs, then manufacturing simplicity is improved, but user creativity and customization are reduced
Solution Approach 1:
The patent separates the structural function (paperboard blocks with fold lines) from the decorative function (stickers). Users can apply different stickers to the same block structure, allowing multiple customization options without requiring multiple pre-printed designs, thus maintaining manufacturing simplicity while enhancing user creativity.
Solution Approach 2:
The toy system transitions from static pre-printed designs to dynamic user-applied decorations. Users can change sticker configurations to create different characters and designs on the same block structure, providing adaptability and versatility while keeping the base manufacturing process simple.
3Strength
If building blocks require adhesive for assembly, then connection strength is improved, but ease of assembly and portability are reduced
Solution Approach 1:
The blocks are divided into flat blanks with predetermined fold lines and separate tab/slit components. These segments interlock through geometric fitting without requiring adhesive, maintaining connection strength through mechanical interlocking while simplifying assembly and eliminating the need for additional materials.
Solution Approach 2:
The blocks are designed to self-assemble through tab-and-slit interlocking mechanisms. The geometric features automatically align and secure blocks together without requiring external adhesives or tools, improving ease of assembly while maintaining connection strength through the interlocking design.
Data Source
AI summary
A kit for creating a folded block structure comprises a set of blanks to create different shaped folded blocks without the need to use adhesive or cutting tools. Each blank includes sides, the sides having edges, the edges comprising side edges, tab edges and flap edges. The sides are joined to one another along adjacent side edges. Folds lines are at the side edges. The tab extends from each of the tab edges. Tab fold lines are at the tab edges. A flap extends from each of the flap edges. Flap fold lines are at the flap edges. A tab slit at or near each of the flap folds lines is configured for receipt of corresponding ones of the tabs. Notches may be formed at the ends of the tabs. Adhesive elements can be used to adhere folded blocks to one another to create a folded block structure.