Supporting structures for shoe soles and manufacturing method thereof

The support structure for shoe soles, with intersecting fiber rods and precise filament arrangement, addresses structural and material utilization issues, enhancing stability, torsional resistance, and comfort while minimizing waste.

TWI934684BActive Publication Date: 2026-08-01AMPLIFI TECH (XIAMEN) LTD
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Patent Information

Application Number
TW114124236
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-06-26
Publication Date
2026-08-01
Estimated Expiration
2045-06-25

AI Technical Summary

Technical Problem

Existing support structures for shoe soles, such as those made through polymer-blended short fiber injection molding and long fiber woven lamination, face challenges in structural strength, molding convenience, and material utilization, with issues like random fiber distribution, fixed fiber weaving directions, and increased material waste.

Method used

A support structure for shoe soles comprising fiber rods with intersecting portions and a polymer matrix, featuring precise filament arrangement and distribution, and a manufacturing method that includes laying fiber bundles along a preset path to form a stable, customizable framework with seamless intersections.

Benefits of technology

The structure provides enhanced structural stability, torsional resistance, and comfort by evenly distributing pressure and impact, reducing material waste, and allowing for customized strength adjustments based on sole requirements.

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Abstract

The support structure applied to the sole of a shoe, including the forefoot, midfoot, and heel areas, comprises multiple fiber rods and intersecting sections. Each fiber rod extends within the sole and includes a polymer matrix and multiple filaments dispersed within the polymer matrix and extending along the direction of the fiber rod. At least two fiber rods are connected and joined together in the heel area. Each intersecting section is formed by the intersection of any two fiber rods and is an integrally molded pattern. The intersecting section defines four sets of adjacent complementary angles, each set having a common edge and a non-common edge. The intersecting section includes filaments in a continuous pattern extending from the common edge to the non-common edge. The number of intersecting sections in the midfoot area is greater than the number of intersecting sections in the forefoot area, and the density of filaments in each fiber rod is substantially the same as the density of filaments in the intersecting sections.
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