Powered Skate Motor Assembly for Lower User Effort

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing personal mobility systems, such as roller skates and scooters, lack innovative designs that provide a unique riding experience and efficient propulsion, often requiring manual effort and insufficient support for users.

Innovation Solution

A powered mobility system comprising a powered skate with a motor assembly and non-powered skate, featuring a platform, wheels, and a motor-driven wheel for propulsion, along with adjustable straps and sensors for user control, enhancing comfort and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If manual propulsion is used in traditional roller skates and scooters, then device complexity is reduced, but user energy expenditure increases and propulsion efficiency decreases

Engineering Contradiction:
Improveuser energy expenditureVSAvoiddevice complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The motor assembly automatically propels the skate based on user input detected by sensors (pressure sensors, accelerometers, gyroscopes), eliminating the need for manual propulsion while reducing user energy expenditure. The system serves itself by converting user body movements or pressure inputs into automated motor-driven motion.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical propulsion with an electric motor assembly that converts electrical energy from a power supply into mechanical motion. This substitution reduces the physical effort required by the user while maintaining propulsion functionality.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If a motor assembly is added to provide automated propulsion, then propulsion efficiency increases, but device complexity increases

Engineering Contradiction:
Improvepropulsion efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The motor assembly is integrated with multiple control functions including pressure sensing, acceleration detection, and directional control within a single compact unit. This multi-functionality increases propulsion efficiency while minimizing the increase in overall device complexity by combining multiple subsystems into one integrated assembly.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the motor, power supply, control electronics, and sensing elements into an integrated motor assembly that is mounted on the skate frame. This merging of components improves propulsion efficiency through coordinated operation while reducing the overall complexity compared to having separate independent systems.

Inventive Principle:
Principle #5Merging (Combining)

3Stability of the object's composition

If multiple wheels are used for support and balance, then stability increases, but device complexity increases

Engineering Contradiction:
ImprovestabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The skate uses multiple individual wheels (typically four wheels arranged in a rectangular pattern) rather than a single large wheel or continuous track. This segmentation provides superior stability and balance by distributing the user's weight across multiple contact points while keeping each wheel simple in design, thus increasing stability without proportionally increasing complexity.

Inventive Principle:
Principle #1Segmentation

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 system provides enhanced user comfort, reduced energy expenditure, and increased control over locomotion, allowing users to perform tricks and reach higher speeds with less manual effort.

Implementation Method 1

The motor assembly can include a motor and a bushing. The motor assembly can be configured to drive at least one drive wheel.

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS12420169B2Powered mobility systems
Publication Date: 2025.09.23 RAZOR USA LLC
  • US12420169B2 patent drawing
  • US12420169B2 patent drawing
  • US12420169B2 patent drawing

AI summary

Various powered mobility systems for users are described. The powered mobility system can include at least one powered skate. The powered skate can include a platform, a plurality of wheels, and a motor assembly. The motor assembly can include a motor. The motor can be powered by a power supply. A motor control can be implemented to determine when power is supplied to the motor from the power supply.