Adjustable Sports Shoe Stud with Asymmetric Cross-Section
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Solution Overview
Problem
Conventional sports shoes with studs have fixed traction properties, which are inadequate for players who need to change positions on the field, as different positions require different traction orientations, leading to sub-optimal performance and the need for multiple shoe pairs.
Innovation Solution
A stud design with a triangular cross-section that transitions to a round shape, allowing for secure attachment in multiple positions on the shoe sole, enabling the direction of maximum traction to be adjusted according to the player's needs, thus adapting to different field positions without requiring multiple shoe pairs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional studs with fixed geometry are used, then the shoe provides stable and simple structure, but the traction properties cannot be adapted to different field positions
Solution Approach 1:
The stud features an asymmetric cross-section with a first curvature radius on the first outer surface and a second curvature radius on the second outer surface, where the first curvature radius is smaller than the second curvature radius. This asymmetric geometry creates different traction characteristics in different directions, allowing the stud to provide optimized traction for specific field positions while maintaining a relatively simple overall structure.
2Adaptability or versatility
If multiple shoe pairs are used for different positions, then optimal traction for each position is achieved, but the player carries excessive equipment
Solution Approach 1:
The stud is designed with multiple outer surfaces featuring different curvature radii, enabling a single stud to provide multiple traction orientations. This allows one shoe pair to serve multiple field positions by rotating the stud to different orientations, eliminating the need for players to carry multiple specialized shoe pairs while still achieving position-specific traction optimization.
3Adaptability or versatility
If studs with varying curvature radii are used, then directional traction is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The stud incorporates local variations in surface curvature with different curvature radii at specific outer surfaces. This local differentiation of geometric properties allows the stud to provide directionally dependent traction characteristics. The manufacturing process focuses on achieving the required precision only at these critical local surfaces rather than requiring uniform high precision throughout the entire stud structure.
Data Source
Figure 1A~1B
Figure 2~3A
Figure 3B~4A
AI summary
The present invention relates to a stud (10) for a shoe comprising: a first part (11) for engaging a ground, wherein the first part (11) has a shape which provides for a higher traction along at least a first direction (23) compared to a second direction (25) different from the first direction (23); and is adapted, such that it can be secured relative to a shoe sole (13) in at least two different positions, wherein in a first position the first direction (23) is oriented differently relative to the shoe sole than in a second position.