Method of manufacturing an upper for an article of footwear

a manufacturing method and technology for footwear, applied in the field of uppers for footwear, can solve problems such as irritation points and discomfort areas for users

Inactive Publication Date: 2007-09-06
NIKE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] Substantial advantage is achieved by providing an improved method of forming a portion of an upper for an article of footwear. In particular, preferred embodiments of the present invention can provide an upper for an article of footwear having reduced irritation points and offer considerable flexibility to influence performance attributes including support, breathability, and reduced weight without restricting aesthetics, and that can be produced in a method that reduces the number of fabrication steps.

Problems solved by technology

The use of multiple pieces results in seams, which can produce irritation points and areas of discomfort for the user.

Method used

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  • Method of manufacturing an upper for an article of footwear

Examples

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Embodiment Construction

[0019] The present invention may be embodied in various forms. A preferred embodiment of a method of manufacturing an upper is illustrated in FIGS. 1-4. As can be seen in FIG. 1, a roll of material 10 has a first or interior surface 12 and a second or exterior surface 14. A layer of adhesive 16 is applied, by lamination or other suitable means, to interior surface 12. In a preferred embodiment, adhesive 16 is a hot-melt adhesive such as a thermoplastic polyurethane (TPU) based adhesive. A release liner (not shown) may be applied to the exposed surface of adhesive 16 in certain embodiments to prevent inadvertent adhesion of material 10 to other surfaces. In certain embodiments, adhesive layer 16 may be formed of a series of microdots rather than a contiguous layer of adhesive, which would provide additional breathability for a shoe upper 20 (seen in FIGS. 2-4).

[0020] An exterior layer 18 of shoe upper 20 is cut from material 10, with adhesive layer 16 forming the interior surface of...

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PUM

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Abstract

A method of forming an upper for an article of footwear includes the steps of providing an exterior layer of an upper of an article of footwear having a layer of adhesive secured to an interior surface thereof, positioning an interior layer of the upper in contact with the interior surface of the exterior layer, applying heat and pressure to laminate the interior layer and exterior layer together, and cutting the laminated interior layer and exterior layer to a desired final form.

Description

FIELD OF THE INVENTION [0001] This invention relates generally to an upper for an article of footwear, and, in particular, to an improved method of manufacturing an upper for an article of footwear. BACKGROUND OF THE INVENTION [0002] Uppers for articles of footwear necessarily have complex shapes, since they must wrap around the contours of the human foot. Known methods of manufacturing uppers involve numerous fabrication steps and may include the use of multiple pieces of material in order to form a complete upper. The use of multiple pieces results in seams, which can produce irritation points and areas of discomfort for the user. [0003] It is an object of the present invention to provide a method of manufacturing an upper for an article of footwear, or at least a portion of an upper, that reduces or overcomes some or all of the difficulties inherent in prior known devices. Particular objects and advantages of the invention will be apparent to those skilled in the art, that is, th...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A43B23/02
CPCA43B23/0235A43B23/042Y10T428/15A43D111/00Y10T156/1052B29D35/146
Inventor KILGORE, BRUCE J.
Owner NIKE INC
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