Molded Foot Support Platform for Welted Footwear
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Solution Overview
Problem
Traditional welted footwear constructions lack advanced features for improved foot support and durability, particularly in areas like the toe cap and midfoot zone, leading to potential fatigue and pressure points.
Innovation Solution
The footwear incorporates a foot support platform with a welted construction that includes a ribbed design with integrally molded pliable material for enhanced tear resistance, varying stiffness zones for improved support and flexibility, and a toe cap retaining structure with a ramped edge to secure different toe cap profiles, using materials like glass-reinforced nylon and thermoplastic polyurethane for added durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional welted construction is used, then manufacturing simplicity is maintained, but foot support and durability are insufficient
Solution Approach 1:
The foot support platform is divided into multiple zones with different stiffness characteristics: a toe box zone, a midfoot zone, and a heel zone. Each zone is optimized for its specific function, with the midfoot zone providing arch support and the toe box zone allowing for flexibility. This segmentation enables the platform to provide targeted support where needed while maintaining manufacturing efficiency through integrated molding.
Solution Approach 2:
The platform incorporates varying material properties across different regions. The midfoot zone uses stiffer material or increased thickness to provide arch support and prevent fatigue, while the toe box zone uses more flexible material to allow natural toe movement. This local differentiation of material properties enhances overall durability and comfort without requiring complex assembly.
2Ease of operation
If uniform stiffness is used throughout the platform, then manufacturing is simplified, but pressure points and fatigue occur
Solution Approach 1:
The platform incorporates varying material properties across different regions. The midfoot zone uses stiffer material or increased thickness to provide arch support and prevent fatigue, while the toe box zone uses more flexible material to allow natural toe movement. This local differentiation of material properties enhances overall durability and comfort without requiring complex assembly.
Solution Approach 2:
The foot support platform is divided into multiple zones with different stiffness characteristics: a toe box zone, a midfoot zone, and a heel zone. Each zone is optimized for its specific function, with the midfoot zone providing arch support and the toe box zone allowing for flexibility. This segmentation enables the platform to provide targeted support where needed while maintaining manufacturing efficiency through integrated molding.
3Reliability
If simple toe cap attachment is used, then manufacturing is easier, but toe cap security and shape consistency are poor
Solution Approach 1:
The toe cap retaining structure is integrally molded as part of the foot support platform, creating a unified component that eliminates separate attachment steps. The retaining structure includes features such as recesses or channels that directly receive and secure the toe cap, ensuring consistent positioning and shape while simplifying manufacturing through single-step molding.
Data Source
AI summary
The present disclosure provides an improved welted footwear and related method of manufacture. The welted footwear and related method of manufacturing is directed to a molded foot support platform that provides a number of advantageous features.