Top Toy Shaft Locking Structure for Automatic Height Change
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Solution Overview
Problem
Existing top toys require manual adjustment to lower the height and lack the ability to freely change height in the lowering direction.
Innovation Solution
A top toy design featuring a shaft with engagement parts and a trunk part that includes a first and second engagement part, allowing the shaft to be locked with either part by an urging force, enabling automatic height adjustment during impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment is used to change top toy height, then the structure remains simple, but the height cannot be freely changed in the lowering direction
Solution Approach 1:
The top toy automatically adjusts its height through impact forces during top battles. The urging force mechanism (coil spring) and engagement parts work together to enable the shaft to move between high and low positions without manual intervention, allowing the toy to adapt its rotation characteristics automatically during play.
2Adaptability or versatility
If an urging force mechanism is added to enable automatic height change, then height adjustability improves, but the device complexity increases
Solution Approach 1:
The height adjustment mechanism is segmented into distinct functional components: the urging force mechanism (coil spring) provides the driving force, while the first and second engagement parts provide discrete positioning points. This segmentation allows the complex function of automatic height adjustment to be achieved through simple, modular elements that work together.
3Adaptability or versatility
If multiple engagement parts are provided on the shaft, then height change positions increase, but the manufacturing complexity increases
Solution Approach 1:
The engagement parts on the shaft serve multiple functions: they provide discrete height positioning (high and low positions) and simultaneously engage with the urging force mechanism to enable automatic transition between positions. This multi-functionality reduces the need for separate components and simplifies manufacturing while maintaining the ability to change height at multiple positions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The toy can automatically change height to either a high or low position based on impact, altering rotation characteristics and providing varied battle experiences.
Implementation Method 1
The first claw projects inside the shaft hole, and is configured to selectively lock with the first engagement part or the second engagement part by a prescribed urging force
Data Source
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AI summary
A top toy includes a trunk part and a shaft. The shaft has first and second engagement parts on an outer periphery thereof. The shaft extends in an axial direction. The trunk part has a shaft hole formed in a rotational center thereof. The shaft is inserted in the shaft hole when the shaft is assembled with the trunk part. The trunk part includes a first claw in the shaft hole. The second engagement part is configured lower than the first engagement part in the axial direction. The first claw projects inside the shaft hole, and is configured to selectively lock with the first engagement part or the second engagement part by a prescribed urging force. The trunk part and the shaft are engaged when the first claw is locked with either the first engagement part or the second engagement part.