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Breathable shoe

a technology of breathable shoes and soles, applied in the field of breathable shoes, can solve the problems of not being breathable, unable to apply classic methods, and preventing the provision of particularly thin soles

Inactive Publication Date: 2005-01-06
GEOX SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0021] The aim of the present invention is to provide a shoe with a waterproof and breathable sole which can be manufactured with the above cited classic methods (modified appropriately) and is simpler than the ones known in the state of the art.
[0022] Within this aim, an object of the present invention is to provide a breathable shoe whose structure entails absolutely no constraints as regards styling and aesthetic research, allowing the greatest freedom to shoe shapes and types.

Problems solved by technology

This entails manufacturing complications and in particular prevents the provision of particularly thin soles.
European patent No. 103601 also discloses a sole in which delimited regions are completely crossed through their thickness by holes and in which, in an upward region, a waterproof and breathable membrane is in contact with a substrate made of soft perforated material on which the foot rests; this solution is substantially equivalent to the preceding one and makes it impossible to apply classic methods.
The sole is monolithic with the upper and the entire assembly is made of plastic and is therefore not breathable.

Method used

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Examples

Experimental program
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Effect test

first embodiment

[0052] The shoe according to the invention, as shown by the description of this first embodiment, is entirely breathable, any non-breathable regions being limited substantially to the perimetric regions of the sole, which must in any case ensure a good seal with respect to external moisture and water.

second embodiment

[0053] With particular reference to FIG. 3, in a second embodiment the shoe differs from the preceding case in that the protective element, now designated by the reference numeral 117, is sandwiched between two components 116a and 116b (which are mutually joined hermetically) into which the sole 116 is divided, each component having through holes 116c and 116d.

[0054] This is done if the thickness of the sole 116 is so great that it is difficult to clean it of any mud or dirt which might penetrate.

[0055] Being blocked by the protective element 117, in this case, the dirt can be released purely by virtue of the flexing of the sole, designated by the reference numeral 116.

[0056] The part above the protective element 117 of the sole 116 can act as an air chamber which increases comfort by absorbing any unevenness of the ground and increasing the ventilation of the membrane so as to rapidly dry its lower surface, when it is wet, in order to increase its breathability.

third embodiment

[0057] With particular reference to FIG. 4, a shoe according to the invention, in a third embodiment, differs from the preceding cases in that the sole, now designated by the reference numeral 216, has in its upper part a hollow region 220 which is delimited perimetrically by a border 221.

[0058] Dome-shaped protrusions 222 protrude from said hollow region 220, are uniformly distributed and advantageously reach the same height as said border 221.

[0059] Holes 223 or channels are provided in said border and connect the region 220 to the outside.

[0060] Each one of said holes 223 is inclined with respect to the ground contact plane, so that the outward part is lower than the inward part (this is done to avoid stagnation).

[0061] The holes 223 can furthermore be provided with one-way valves, not shown in the figures (which allow only air to flow outward).

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PUM

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Abstract

A breathable shoe, including: an upper assembly (10;310;410) having a breathable upper (11;311;411); a membrane (14;314;414) made of a material which is waterproof and breathable, and a sole (16;116;216;316;416) made of perforated elastomer, which are all mutually attached such that the membrane is arranged between the upper assembly and the sole, and the sole is sealed perimetrically to the membrane, in a manner to prevent moisture to enter into the upper assembly from the sole through the membrane, and to permit moisture to leave the inside of the upper assembly through the membrane and through the sole. In one preferred embodiment, the membrane is first attached to the upper assembly so that the upper assembly is a unitary upper assembly including the membrane, and such unitary upper assembly is subsequently attached to the sole.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application claims priority to Italian Application No. PD2000A 000091, filed Apr. 13, 2000, and WIPO Application No. PCT / EP01 / 04050, filed Apr. 9, 2001. The present application also claims priority to the U.S. application Ser. No. 10 / 009,482, filed Dec. 13, 2001. The contents of these applications are incorporated herein by reference in their entirety.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a breathable shoe. [0004] 2. Discussion of the Background [0005] It is known that a shoe, in order to be comfortable, must ensure proper exchange of heat and water vapor between the microclimate inside the shoe and the external one. [0006] This exchange of heat and water vapor, however, must not compromise in any way the impermeableness of the shoe to external humidity or water. [0007] Currently commercially available shoes entrust this exchange of heat and water vapor substanti...

Claims

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Application Information

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IPC IPC(8): A43B7/06A43B7/08A43B7/12A43B9/12A43B13/12A43B13/20A43B23/02A43D21/00A43D25/06A43D86/00B29D35/00B29D35/06B29D35/12B29D35/14
CPCA43B7/06A43B7/08A43B7/125B29D35/142A43B13/026A43B13/12B29D35/122A43B9/12A43B7/087A43B13/14A43B17/08A43B13/32
Inventor POLEGATO MORETTI, MARIO
Owner GEOX SPA
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