Toy Robot Joint Structure for Paper Link Rigidity
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Solution Overview
Problem
Toy robots made from paper parts lack rigidity due to their lightweight and easily deformable nature, requiring a design to maintain structural integrity and stability.
Innovation Solution
A joint structure comprising rotatable links connected by shafts, where the links are made of paper materials like manila or eco-friendly paper, with bent extension regions overlapping to form a stable rotating axis, and connecting members that include bolts and nuts for enhanced rigidity and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If paper parts are used to make the toy robot, then the cost is reduced and weight is lightened, but the rigidity and structural stability deteriorate
Solution Approach 1:
The patent combines paper parts with metal connecting members (bolts, nuts, shafts) to create a composite structure. The paper links provide lightweight, low-cost components while the metal connecting members provide the necessary rigidity and strength. This composite approach allows the toy robot to achieve both cost reduction and structural stability simultaneously.
2Weight of moving object
If paper parts are used to make the toy robot, then the weight is lightened, but the rigidity and structural stability deteriorate
Solution Approach 1:
The patent uses a composite structure where paper links provide lightweight properties while metal connecting members (bolts, nuts, shafts) provide rigidity. The paper parts maintain the weight advantage while the metal components compensate for the lack of inherent rigidity in paper, achieving both lightweight and structurally stable characteristics.
Solution Approach 2:
The patent divides the robot structure into separate paper links that are connected by metal connecting members. This segmentation allows each paper link to remain lightweight while the metal connectors provide the necessary structural integrity, enabling the overall structure to be both light and rigid.
3Device complexity
If simple connecting structures are used for paper parts, then the assembly is simplified, but the structural integrity and stability deteriorate
Solution Approach 1:
The patent segments the connecting function into separate metal components (bolts, nuts, shafts) that can be easily assembled with paper links. This segmentation simplifies the assembly process while the combination of these components creates a stable, integrated structure that maintains structural integrity.
Solution Approach 2:
The patent introduces metal connecting members as intermediary elements between paper links. These intermediaries simplify the connection process (making assembly easier) while simultaneously providing the structural strength needed to maintain integrity and stability of the overall structure.
Data Source
AI summary
A toy robot includes a joint structure which includes first and second links and first and second connecting members, wherein each of the first and second links includes a central region and a pair of sidewall regions that are bent to extend to the left and right of the central region, and the pair of sidewall regions face each other. A first one of the sidewall regions of the first link and a second one of the sidewall regions of the second link partially overlap, the first connecting member includes a first shaft penetrating the overlapping region of the first and second sidewall regions, a third one of the sidewall regions of the first link and a fourth one of the sidewall regions of the second link partially overlap, the second connecting member includes a second shaft penetrating the overlapping region of the third and fourth sidewall regions.