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Footwear with improved upper

a technology of liquid-impermeable shoes and uppers, which is applied in the direction of uppers, fastenings, bootlegs, etc., can solve the problems of relative complexity of the structure of the shoe having a liquid-impermeable upper, insufficient comfort in the area of the liquid-impermeable shoe according to the prior art, and injuries, etc., to achieve faster and more economical, improve the comfort of the shoe, and optimize the manufacture of the shoe

Inactive Publication Date: 2018-10-18
SALOMON SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides an improved shoe that is more comfortable and evenly distributes comfort. It achieves this by improving the structure of the shoe, making it more uniform in its flexibility and comfort. The shoe is also easier and more economical to manufacture, resulting in reduced manufacturing time and cost.

Problems solved by technology

First, a liquid-impermeable shoe according to the prior art sometimes offers insufficient comfort in the area of the front division of the foot insertion opening, particularly when practicing a sporting or intense activity.
As a result, injuries may occur.
Another disadvantage is related to the relative complexity of the structure of a shoe having a liquid-impermeable upper.
Because of the number of parts involved, the manufacture of such a shoe is quite lengthy and expensive.
This operation is difficult and time-consuming.
In addition, it is necessary to add the strips 15 (see FIG. 2), as mentioned above, which further increases the time required for the manufacture.

Method used

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  • Footwear with improved upper
  • Footwear with improved upper
  • Footwear with improved upper

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0031]The first embodiment described below relates, for example, to a flexible shoe for walking on firm ground or in snow. However, the invention is applicable to other fields, such as those mentioned above.

[0032]The first embodiment is described with reference to FIGS. 5 to 8.

[0033]As shown in FIG. 5, a walking shoe 21 is provided to receive the foot of the user. Conventionally, the shoe 21 comprises an outer sole assembly 22 and an upper 23 affixed to the sole assembly. The shoe extends lengthwise, along a longitudinal direction L, from a rear end 24 to a front end 25, and widthwise, along a transverse direction W, between a lateral side 26 and a medial side 27.

[0034]As shown, the upper 23 comprises a lower portion 30, provided to surround the foot, and has no upper portion. However, an upper may alternatively be provided to comprise both a lower portion and an upper portion, the latter being provided to surround the ankle and possibly a portion of the lower leg of the wearer.

[003...

second embodiment

[0051] as can be seen in FIG. 9, the inner layer 35 of the outer shell 33 is an assembly of two portions 61, 62. This configuration makes it possible to optimize the cutting of material for the manufacture of the shoe. More specifically, the scraps of material generated by the cutting of plies are smaller. Given that the price per unit area is very high in the case of a membrane impermeable to water and permeable to gas, the resulting saving is substantial.

[0052]Still for the second embodiment, the portions 61, 62 are assembled with one another to assume the general appearance of the inner layer 35. The assembly is done via a combination of stitching and adhesively affixed strips, which are located in the area of the lateral side 26 and medial side 27 of the shoe 21. This location of seams and strips is outside of the zones of the upper that are subject to bending or to the action of the tightening device. As a result, foot comfort is preserved.

third embodiment

[0053]In the same spirit, as can be seen in FIG. 10, the inner layer 35 of the outer shell 33 is an assembly of three portions 63, 64, 65. Here again, the configuration allows optimizing the cutting of material for the manufacture of the shoe, and the resulting saving is substantial.

[0054]Again, the portions 63, 64, 65 are assembled with one another to assume the general appearance of the inner layer 35. The assembly is done via a combination of stitching and adhesively affixed strips, which are located in the area of the lateral side 26, medial side 27, and rear end 24 of the shoe 21. This location of seams and strips is outside of the zones of the upper that are subject to bending or to the action of the tightening device. As a result, foot comfort is preserved.

[0055]In any case, the invention is made from materials and according to implementation techniques known to one of ordinary skill in the art.

[0056]The invention is not limited to the embodiments described above, and includ...

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Abstract

Flexible shoe extending between rear and front ends, between lateral and medial sides, and between the sole assembly and an upper end of an upper. The upper includes an outer shell including an inner and outer layers, the latter having a foot insertion opening with rear and front divisions, the latter extending between lateral and medial edges. A device tightens the upper by bringing the lateral edge toward the medial edger. The inner layer extends opposite the outer layer and in the area of the front division of the foot insertion opening, between the lateral and medial edges. The inner layer is liquid-impermeable and flexible. When the lateral and medial edges of the outer layer are brought toward one another, the distance between the lateral and medial edges is shorter than the portion of the inner layer in the area of the front division or the foot insertion opening.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is based upon French Patent Application No. FR 17 / 00405, filed Apr. 12, 2017, the disclosure of which is hereby incorporated by reference thereto in its entirely, and the priority of which is claimed under 35 U.S.C. § 119.BACKGROUND1. Field of the Invention[0002]The invention relates to a walking or sports article of footwear, such as a shoe, having a liquid-impermeable upper. This shoe can be used in fields such as walking, running on flat or mountainous terrain, skateboarding, ball sports, cross-country or telemark skiing, snowboarding, snowshoeing, or others.2. Background Information[0003]Depending upon the intended uses, a shoe must have a certain flexibility and a good damping capability. Flexibility must be understood as an ability to follow certain deformations of the foot of a user. This is intended, for example, to enable good foot rolling movement when walking. Damping is intended to reduce or even prevent fatigu...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A43B23/02A43B23/06A43B7/12
CPCA43B23/027A43B23/06A43B23/026A43B7/125A43B3/00A43B23/0235A43B23/0245A43B23/022A43B23/045A43C1/00
Inventor DREVETTON, REMIBOREL, RENEGIACOBONE, FREDERIC
Owner SALOMON SA
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