Segmented Football Boot Stud with Elastic Strain Section

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing studded shoes face a trade-off between traction and flexibility, as the attachment of studs increases the rigidity of the sole, making it difficult to achieve both good traction and flexibility, especially in the bending area of the shoe, which affects athletic performance.

Innovation Solution

The design incorporates a stud with a first and second stud portion connected by a strain section that adapts to the bending of the shoe sole, allowing for improved traction and flexibility by enabling the stud to strain and adapt to ground conditions without reducing comfort, even under great forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If studs are attached to the shoe sole, then traction is improved, but flexibility in the bending area deteriorates

Engineering Contradiction:
ImprovetractionVSAvoidflexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The stud is divided into multiple stud portions (first stud portion, second stud portion, etc.) connected by strain sections. This segmentation allows each portion to independently adapt to ground conditions while maintaining overall structural integrity, resolving the contradiction between traction and flexibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The strain sections are designed to be elastically deformable, allowing the stud structure to dynamically adapt its shape in response to bending forces and ground reactions. This dynamic behavior enables the stud to maintain both traction contact with the ground and flexibility to accommodate shoe sole bending.

Inventive Principle:
Principle #15Dynamics

2Power

If rigid studs are used, then power transmission is improved, but comfort in the bending area deteriorates

Engineering Contradiction:
Improvepower transmissionVSAvoidcomfort
Core Design Contradiction:
PowerVSEase of operation

Solution Approach 1:

By segmenting the stud into rigid stud portions and flexible strain sections, the design enables effective power transmission through the rigid portions while the flexible strain sections absorb bending stresses, maintaining comfort during athletic movements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the stud have different mechanical properties - the stud portions are rigid for effective ground contact and power transmission, while the strain sections are flexible to accommodate bending and maintain comfort. This local differentiation resolves the contradiction between power transmission and comfort.

Inventive Principle:
Principle #3Local quality

3Stability of the object's composition

If multiple studs are connected via rigid elements, then stability is improved, but adaptability to ground conditions deteriorates

Engineering Contradiction:
ImprovestabilityVSAvoidadaptability to ground conditions
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The strain sections provide dynamic flexibility that allows the stud assembly to adapt its configuration in response to varying ground conditions, while the overall structure maintains stability through the interconnected stud portions.

Inventive Principle:
Principle #15Dynamics

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

This design allows for enhanced power transmission and improved rolling off of the foot, providing better adaptation to ground conditions and increased flexibility in the bending area, thus enhancing athletic performance by allowing studs in the bending area without compromising comfort.

Implementation Method 1

at least a first strain section (26) which connects the first stud portion (50) and the second stud portion (52) to each other, wherein the at least one first strain section (26) is strained when the stud is attached to the shoe sole and the shoe sole is bent

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2430937B1New stud for football boots
Publication Date: 2018.02.21 ADIDAS AG
  • EP2430937B1 patent drawingFigure 1
  • EP2430937B1 patent drawingFigure 2a~2d
  • EP2430937B1 patent drawingFigure 3a~3b

AI summary

Stud (24) for a shoe sole (20), comprising at least a first stud portion (50) and a second stud portion (52), at least a first strain section (26, 60, 70), which connects the first stud portion (50) and the second stud portion (52) to each other, wherein the at least one first strain section (26, 60, 70) is strained when the stud (24) is attached to the shoe sole (20) and the shoe sole (20) is bent.