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Bladder with inverted edge seam and method of making the bladder

An airbag and edge technology, applied in the field of buffer parts, can solve problems such as inability to comprehensively solve problems, and achieve the effect of eliminating high-cost production processes

Inactive Publication Date: 2002-12-18
NIKE INNOVATE CV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But as mentioned before, although prior art has solved some in these problems, they each have its shortcoming and can not solve the problem comprehensively

Method used

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  • Bladder with inverted edge seam and method of making the bladder
  • Bladder with inverted edge seam and method of making the bladder
  • Bladder with inverted edge seam and method of making the bladder

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Embodiment Construction

[0095] Referring now to the drawings, several arrangements of preferred embodiments of the multi-membrane airbag are shown. Due to the complex geometry of multi-layered airbags, perspective views of airbags are shown in some cases assuming that the outer membrane layers are opaque for the sake of clarity. The section shows its internal structure. It should be understood that these film layers may be clear, colored or opaque or a combination of films of different appearance. Throughout this application, the term "junction" generally refers to any junction between film layers. This convention is used in the drawings. Use only outlines or outlines surrounded by arcs to indicate connection locations. The arced position indicates the connection between the intima layer and the adventitia layer closest to the viewer. Showing only the position of the connecting outline describes the connection between two intima layers or the connection between an intima layer and the adventitia ...

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Abstract

The invention is a bladder formed of multiple layers of barrier film to provide multiple pressurized layers of cushioning fluid or gas when the bladder is filled. The sidewalls of the bladder can be constructed with an inverted seam construction to eliminate finishing steps in the manufacture of cushioning bladders and alternatively to provide a clean, seamless appearance along the side walls. The inverted seam can be formed by attaching the peripheral edges of inner barrier layers to the outer barrier layers adjacent a weld between inner barrier layers to provide an inside-out inverted seam appearance. An inverted seam can also be formed by providing separate sidewall elements attached to the barrier layers of the bladder to provide a seam displaced from the center of the sidewall.

Description

technical field [0001] The present invention relates to improved cushioning for footwear, and in particular to a fluid-filled empty bladder having multiple layers of turned-over edge seams and the formation of improved cushioning with turned-over edge seams along the sidewalls pieces. Background technique [0002] Much work has been done to improve the construction of fluid-filled bladders such as cushioning elements for shoe soles. With recent developments in materials and methods of manufacture, fluid-filled air cushions have significantly improved their versatility, but problems remain in achieving optimum cushioning performance and durability. Fluid-filled bladders are commonly referred to as "air cushions" and the fluid is typically a gas and are commonly referred to as "air", without intending any limitation as to the actual composition of the gas used. [0003] Numerous traditional articles of footwear exist that have air-filled cushioning devices within the midsole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A43B13/20A43B21/28
CPCA43B13/20A43B21/285A63B60/54B29D22/02Y10T428/231Y10T428/1352Y10T156/1016A43B13/00A43D27/00
Inventor 约翰·C·托尼戴维·B·赫里奇
Owner NIKE INNOVATE CV
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