Grooved Sole Segmentation for Flexible Foot Support
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Solution Overview
Problem
Existing footwear soles either lack flexibility, causing foot fatigue during walking, or are too rigid and uncomfortable, failing to provide adequate support and comfort simultaneously, while high-quality materials increase costs.
Innovation Solution
A sole design featuring longitudinal and transverse grooves for enhanced flexibility, a central element for improved grip, and varying materials for different portions to optimize support and comfort, ensuring natural foot movement and reduced fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the sole is made of rigid materials to provide support, then support to the foot is improved, but flexibility and comfort during walking deteriorate
Solution Approach 1:
The sole is divided into multiple independent sections through grooves (longitudinal grooves 12, 14 and transverse grooves 24, 26, 28), creating discrete segments that can move relative to each other. This segmentation allows the sole to provide support while enabling natural flexion and movement during walking, resolving the contradiction between rigidity and flexibility.
Solution Approach 2:
Different regions of the sole are given different structural characteristics through the groove pattern. The front portion has longitudinal grooves for flexion, while the rear portion maintains full heel support without grooves. This local differentiation allows each area to perform its specific function optimally.
2Ease of operation
If softer materials are used to improve flexibility, then comfort and flexibility are improved, but support to the foot deteriorates
Solution Approach 1:
The groove-based segmentation creates structural flexibility through geometric design rather than material softness. The grooves allow controlled movement and flexion while the remaining sole material maintains its supportive properties, achieving both flexibility and support without relying on softer materials.
3Reliability
If high-quality materials are used to improve performance and comfort, then footwear quality is improved, but manufacturing cost increases
Solution Approach 1:
The groove pattern provides enhanced performance and comfort through structural design rather than expensive materials. This geometric solution achieves the desired functionality while maintaining cost-effectiveness in manufacturing.
Solution Approach 2:
The invention changes the structural parameters of the sole (adding grooves, creating segments) rather than changing material parameters (using expensive materials). This parameter change achieves performance improvement without increasing manufacturing cost.
Data Source
Figure 1
AI summary
It consists of a sole, apt to improve walking, and footwear including said sole, thus made more comfortable, high-performance, and flexible.