Footwear bladder system

By employing a bladder system in the sole structure, utilizing fluid-filled chambers composed of stacked polymer sheets, the problem of personalized adjustment of the sole area in existing footwear products is solved, achieving a uniform feel and optimized cushioning.

CN115413854BActive Publication Date: 2026-02-17NIKE INNOVATE CV
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Patent Information

Application Number
CN202210973975.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2018-11-20
Filing Date
2019-11-01
Publication Date
2026-02-17
Estimated Expiration
2039-11-01

AI Technical Summary

Technical Problem

Existing footwear sole structures struggle to provide cushioning and motion control while simultaneously offering personalized adjustments and a uniform feel across different areas of the foot.

Method used

The system employs a capsule system comprising a single fluid-filled sealed chamber on the foot-facing surface and multiple discrete fluid-filled chambers on the ground-facing surface, constructed from stacked polymer sheets. The shape and connection of the chambers are controlled using a weld-resistant material, enabling independent adjustment of each area.

Benefits of technology

It achieves personalized cushioning response for different areas of the foot, providing a uniform feel and optimized cushioning effect, while reducing assembly complexity and reliance on thermoforming molds.

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Abstract

A sole structure for an article of footwear includes a midsole that includes a bladder system having a forefoot region, a midfoot region, and a heel region. The bladder system defines a first sealed chamber holding fluid as a first cushioning layer, the first sealed chamber extending over the forefoot region, the midfoot region, and the heel region. The bladder system also defines a plurality of discrete sealed chambers holding fluid isolated from one another, each of the plurality of discrete chambers disposed on a side of the first sealed chamber and fluidically isolated from the first sealed chamber.
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