Inline Skate Anti-Rolling Device with Rotator and Catching Step

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Solution Overview

Problem

Beginners in inline skating face difficulties in maintaining balance and often fall backwards due to rolling in place, which can lead to accidents.

Innovation Solution

A beginner's inline skate equipped with an anti-rolling device that includes an anti-rotation catching step and a rotator with catching protrusions, which locks the wheel rotation when an abnormal forward kick motion occurs, preventing rolling in place.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a normal inline skate is used, then the skate allows free wheel rotation for skating motion, but beginners experience rolling in place and fall backwards due to inability to maintain balance

Engineering Contradiction:
Improveease of skatingVSAvoidrolling in place
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The anti-rolling device applies preliminary anti-action by pre-positioning the rotator and catching protrusions to counteract the harmful rolling motion before it completes. When the wheel rotates in the abnormal rolling direction, the catching protrusions engage with the anti-rotation catching step to prevent the harmful motion, while allowing normal skating rotation to proceed freely.

Inventive Principle:
Principle #9Preliminary anti-action

2Object-affected harmful factors

If an anti-rolling device is added to prevent rolling in place, then accidents are prevented, but the device complexity increases

Engineering Contradiction:
Improverolling in placeVSAvoidstructure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The anti-rolling device is segmented into independent functional components: the rotator element with catching protrusions, the anti-rotation catching step on the wheel, and the weight for generating rotational force. This segmentation allows each component to perform its specific function while maintaining overall simplicity and ease of integration into the existing skate structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The rotator acts as an intermediary mechanism between the wheel and the ground reaction forces. It mediates between the harmful rolling motion and the desired normal skating motion by selectively engaging to prevent only the abnormal rotation while allowing normal operation, thus adding minimal complexity while achieving the safety function.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If the rotator is designed to lock wheel rotation during abnormal motion, then rolling in place is prevented, but the ease of operation for normal skating may be affected

Engineering Contradiction:
Improverolling in placeVSAvoidease of skating
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The anti-rolling device employs dynamic characteristics through the weight on the rotator, which generates rotational force in response to ground reaction forces during abnormal rolling motion. This dynamic response ensures that the locking mechanism engages only when needed (during harmful rolling) while remaining passive during normal skating, thus maintaining ease of operation for legitimate skating activities.

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

The anti-rolling device effectively prevents the inline skate wheels from rotating during rolling in place, thereby reducing the risk of accidents and allowing beginners to regain balance more easily.

Implementation Method 1

A weight may be disposed on one side portion of the rotator

Methodology Applied
Scientific EffectGravitational force: Gravitation

Implementation Method 2

A one-way rotating gear configured to rotate while engaged with rotation of the rotator may be disposed on one side of the rotator

Methodology Applied
Scientific EffectMechanical engagement: Gear

Implementation Method 3

The disengaging mechanism may include a lever and a tension spring configured to elastically support the lever on one side

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12263397B2Beginner's inline skate with anti-rolling device
Publication Date: 2025.04.01 LEE NA YOON
  • US12263397B2 patent drawing
  • US12263397B2 patent drawing
  • US12263397B2 patent drawing

AI summary

The present disclosure relates to a beginner's inline skate which can prevent rolling in place. A beginner's inline skate with an anti-rolling device according to the present disclosure includes an anti-rolling device installed on at least one wheel of wheels of the inline skate, wherein the anti-rolling device includes: an anti-rotation catching step formed around a rotating shaft of the wheel; and a rotator installed to rotate about a circumference of the rotating shaft of the wheel and having catching protrusions formed to be caught at the anti-rotation catching step and lock rotation of the wheel.