Yo-Yo Nested Rotation for Dynamic Pattern Visibility
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Solution Overview
Problem
Existing yo-yos lack features that enhance user interest and visual appeal.
Innovation Solution
A yo-yo design featuring a shaft member, first and second rotation portions, and a transparent second rotation portion that allows visibility of an interlocking member, providing distinct visual effects and information display through color and pattern changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a decorative body is stored in a disk-shaped side body, then the yo-yo can store decorations, but the visual appeal and user interest are insufficient
Solution Approach 1:
The patent applies color changes by using transparent and translucent materials with different transparency levels for the first and second rotation portions. The interlocking member features a display area with patterns that become visible through the transparent second rotation portion, creating dynamic visual effects as the yo-yo rotates. This resolves the contradiction by maintaining decoration storage while significantly enhancing visual appeal through transparency-based color and pattern display.
Solution Approach 2:
The patent implements nesting by placing the interlocking member with its display area inside the hollow interior of the first rotation portion, which is itself contained within the second rotation portion. This nested structure allows the decorative patterns to be stored internally while being visible through the transparent outer layers, simultaneously achieving decoration storage and visual appeal.
2Illumination intensity
If multiple rotation portions are added, then visual effects are enhanced, but device complexity increases
Solution Approach 1:
The patent applies multi-functionality by designing the transparent second rotation portion to serve multiple purposes: it acts as a structural outer shell, a transparent window for displaying patterns, and a rotating element that enables dynamic visual effects. The interlocking member simultaneously provides structural connection and serves as the display area. This reduces overall device complexity while maintaining enhanced visual effects.
Solution Approach 2:
The patent merges the display function into the interlocking member itself, combining the structural connection function with the visual display function in a single component. The display area is integrated into the interlocking member's structure, eliminating the need for separate display components and reducing overall device complexity while achieving enhanced visual effects.
3Illumination intensity
If transparent materials are used, then visibility and visual appeal improve, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies segmentation by dividing the yo-yo into distinct modular components: the first rotation portion, the second rotation portion, and the interlocking member. Each component can be manufactured separately with standard tolerances, and the modular design with defined interfaces (outer peripheral ends fitting into hollow interiors) simplifies assembly while maintaining the visual benefits of transparent materials.
Data Source
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AI summary
A yo-yo includes: a shaft member; a string member supported by the shaft member; a first rotation portion rotatable around the shaft member; and a second rotation portion rotatable around the shaft member and rotatable relative to the corresponding first rotation portion. The second rotation portion is provided outside the first rotation portion in a direction in which the shaft member extends, the second rotation portion covers a partial area of the first rotation portion, and at least a part of the partial area is visible through the second rotation portion.