Laser-Patterned Footwear Surfaces Without Complex Molds

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Solution Overview

Problem

Traditional methods for incorporating structural features and decorative designs into footwear are complex, costly, and time-consuming, often requiring expensive multi-component molds and labor-intensive processes, making it difficult to manufacture customized athletic footwear efficiently.

Innovation Solution

The use of laser technology to create precise structural and aesthetic features on footwear surfaces, such as midsoles, without the need for complex molds or additional materials, by marking or engraving patterns and colors using UV or CO2 lasers, and applying masking mediums and fluids to support the process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional multi-component molds and manual processing are used to create structural features and decorative designs, then manufacturing precision and customization capability are improved, but device complexity and manufacturing cost increase significantly

Engineering Contradiction:
Improveprecision of structural features and decorative designsVSAvoidcomplexity of multi-component molds and manufacturing processes
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical molding processes with laser technology. Lasers directly write structural features and decorative designs onto the footwear surface through ablation or melting, eliminating the need for complex multi-component molds and manual processing steps while maintaining high precision.

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

Solution Approach 2:

The patent changes the physical state and properties of the footwear material through controlled laser parameters (energy density, pulse duration, wavelength). By adjusting these parameters, the laser can create different structural features and decorative effects without changing the fundamental material composition, thereby simplifying the manufacturing process.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If traditional manufacturing processes are used to create customized footwear, then structural features and decorative designs can be achieved, but productivity decreases due to time-consuming manual processing

Engineering Contradiction:
Improvecustomization capability for different athletes and activitiesVSAvoidmanufacturing speed and efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The laser system enables automated direct writing of structural features and decorative designs, replacing time-consuming manual processing. The laser can rapidly create customized patterns and structures by simply changing the digital design file, dramatically improving productivity while maintaining full customization capability.

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

Solution Approach 2:

The patent implements a dynamic manufacturing process where laser parameters (power, speed, pulse frequency) can be adjusted in real-time during processing. This allows the system to adapt to different material types, feature complexities, and customization requirements without stopping the manufacturing process, thereby maintaining high productivity.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If complex multi-component molds are used to manufacture footwear with structural features, then manufacturing precision is improved, but loss of substance increases due to material waste from multiple components

Engineering Contradiction:
Improveprecision of structural featuresVSAvoidmaterial waste from multi-component structures
Core Design Contradiction:
Manufacturing precisionVSLoss of substance

Solution Approach 1:

The patent merges multiple separate manufacturing operations into a single laser processing step. The laser can create both structural features and decorative designs in one pass, eliminating the need for multiple components and assembly steps, thereby reducing material waste while maintaining precision.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

By replacing mechanical molding with laser direct writing, the patent eliminates material waste associated with mold release agents, parting lines, and flash from multi-component molding. The laser ablates or melts material precisely where needed without generating excess waste material.

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

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 method allows for the cost-effective and efficient creation of customized, personalized footwear with optimized performance and aesthetic characteristics, reducing manufacturing complexity and costs while enabling precise control over structural and decorative features.

Implementation Method 1

directing a laser beam from the laser to the surface of the object to mark or engrave at least a portion of the surface of the object

Methodology Applied
Scientific EffectLaser ablation: Laser Ablation

Implementation Method 2

Marking the surface of the object may include changing a color of at least a portion of the surface of the object without removing material therefrom

Methodology Applied
Scientific EffectThermal heating: Heating

Data Source

PatentUS11633019B2Method of providing decorative designs and structural features on an article of footwear
Publication Date: 2023.04.25 NEW BALANCE ATHLETICS INC
  • US11633019B2 patent drawing
  • US11633019B2 patent drawing
  • US11633019B2 patent drawing

AI summary

The invention relates to footwear and portions thereof having structural features and decorative designs thereon, and related systems and methods for manufacturing same. An exemplary method for providing a feature on a surface of an object includes positioning a laser proximate the surface of the object, directing a laser beam from the laser to the surface of the object to mark or engrave at least a portion of the surface of the object, and moving at least one of the laser and the object to create a pattern on the surface of the object, the pattern providing at least one of an aesthetic and a structural feature on the surface of the object.