Breathable sole structure for footwear

a sole structure and sole technology, applied in the field of breathable sole structure for footwear, can solve the problems of inability to remove perspiration, poor ventilation of the shoe upper and sole, and inability to ventilate the foot,

Inactive Publication Date: 2005-08-11
CELGARD LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many kinds of footwear, such as athletic shoes, everyday walking shoes, and work boots have the drawback of poor ventilation.
The shoe upper and sole do not allow the foot to breathe.
Since the foot cannot breathe, perspiration cannot be removed.
The accumulation of perspiration can then promote the growth of bacteria, fungi and the like as well as the accompanying unpleasant odors and skin problems.

Method used

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  • Breathable sole structure for footwear
  • Breathable sole structure for footwear
  • Breathable sole structure for footwear

Examples

Experimental program
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Embodiment Construction

[0010] Referring to the drawings wherein like numerals indicate like elements, there is shown in FIG. 1 and FIG. 2, a preferred embodiment of a sole 10. Sole 10 includes insole 12, outsole 14, and functional membrane system 16. The insole 12 and the outsole 14 are bonded together, and the functional membrane system 16 is sandwiched therebetween. The insole 12 faces the interior of a shoe where the foot rests; while the outsole 14 is exposed to the outside world.

[0011] Insole 12 may be made of synthetic materials, rubbers, or similar materials. Insole 12 includes a perforated region 18. Perforated region 18 defines an area in which a plurality of holes 20 is provided. Holes 20 transverse the insole 12. Insole 12, further, includes an upper coupling region 22. The upper coupling region 22, as used herein, is defined as the region between the outer perimeter of the perforated region 183, and the perimeter of insole 12.

[0012] Outsole 14 may be made of synthetic materials, rubbers, or ...

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PUM

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Abstract

The instant invention is a breathable sole structure for footwear. The footwear sole structure includes an insole, an outsole, and a functional membrane system. The insole has an area with a plurality of holes therethrough. The outsole has an area with a plurality of holes therethrough. The functional membrane system has a microporous hydrophilic membrane and a microporous hydrophobic membrane. The insole and the outsole are bonded to each other, so that the functional membrane system is sandwiched therebetween; and furthermore, the functional membrane system is juxtaposed to said areas.

Description

FIELD OF THE INVENTION [0001] The instant invention relates to a breathable sole structure for footwear. BACKGROUND OF THE INVENTION [0002] Footwear, and in particular shoes, usually include two major components, a shoe upper and a sole. The general purpose of the shoe upper is to snuggly and comfortably enclose the foot. Ideally, the shoe upper should be made from an attractive, highly durable, comfortable materials or combination of materials. The sole, constructed from a durable material, is designed to provide traction and to protect the foot during use. The sole also typically serves the important function of providing enhanced cushioning and shock absorption during athletic activities to protect the feet, ankles, and legs of the wearer from the considerable forces generated. [0003] Many kinds of footwear, such as athletic shoes, everyday walking shoes, and work boots have the drawback of poor ventilation. The shoe upper and sole do not allow the foot to breathe. Since the foot...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A43B7/06A43B13/20A43B7/08A43B7/12A43B13/12A43B13/14
CPCA43B7/08A43B7/125A43B13/125A43B13/12A43B13/026A47J27/0815A47J36/10
Inventor LECHHART, FRIDTJOFMARTIN, TIM W.
Owner CELGARD LLC
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