Shoe with Anti-Skid Sole

a technology of anti-skid shoes and soles, applied in the field of shoes with anti-skid soles, can solve the problems of the most frequent and serious accidents, and achieve the effects of reducing the retention rate of pebbles, reducing the grip coefficient, and high quality

Inactive Publication Date: 2011-10-13
MICHELIN & CO CIE GEN DES ESTAB MICHELIN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0027]It has been noted that the invention provides a slip-resistant action of very high quality between the ground and the sole of footwear, due notably to the reduced retention of pebbles. The arrangement of the sculpture on the surface of this sole makes it possible to penetrate and drive away effectively any substances that lower the grip coefficient and that are interposed in the contact area, notably liquids in the form of films (moisture) or pools (wetness). Because of this mechanism, therefore, a sufficiently large dry contact surface is created at each step of the user to

Problems solved by technology

Falls caused by involuntary slipping are among the most frequent and serious causes of accidents at the present time.
However, systematic studies of slip-resistant footwear by the applicants have sh

Method used

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Examples

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embodiment

OF EMBODIMENT

[0043]A sole sculpture is shown in FIG. 1, which reproduces, approximately at least, that of the model document filed in the United States under the number US D446912S, mentioned at the beginning of this text as an illustration of the prior art. It is composed of square rubber lugs 11, which project towards the lower face of the sole from a substrate 12 which has a thickness and suppleness suitable for the intended use of the sole. Each of the lugs 11 is divided into four elementary blocks 14 by two slits or sipes or indentations 15 intersecting at right angles. The lugs 11 are separated from each other by two sets of orthogonal grooves 16 parallel to the slits 15, which have suitable dimensions to allow a good flow of the liquid displaced by the sole in contact with the ground. The width of these grooves is normally several times the width of the internal slits 15 of each lug 11.

[0044]In FIG. 1, the longitudinal direction of the footwear is orientated from the bottom t...

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PUM

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Abstract

Footwear with a sole formed from an elastomeric material whose grip is improved on ground where the interface may include an intermediate foreign substance, this sole comprising lugs (31) separated from each other by grooves (35). The walls of the grooves (35) are cut into the thickness of the elastomeric material and delimit patterns with sharp angles in the profile of said lugs (31) which can pierce said foreign substance to establish direct dry contact between the two surfaces. Each lug (31) forms a star-shaped pattern having at least five arms in the form of stems (32) distributed over its, profile and each stem (32) is orientated radially towards the outside of the pattern and terminates in an end. Each stem (32) is separated from its neighbor by a recess (38) in the profile of the lug. Finally, each lug (31) has a stem (32) engaged in a space of the adjacent groove (35) which is delimited by a recess (38) between two neighboring stems in the profile of a second lug neighboring the first lug.

Description

TECHNICAL FIELD[0001]The present invention relates to footwear equipped with a sole intended to provide the footwear with a good slip-resistant contact with a work surface which may be made slippery by liquid or solid foreign substances. It is applicable to work or sports footwear, for example, which require good gripping qualities on naturally slippery ground and on very smooth natural or synthetic coverings such as Linoleum (registered trademark), varnished tiles, polished stone, and metallic surfaces, particularly when these surfaces are wetted or moistened by a liquid (such as water, oil or blood) or are covered by pools of liquid or are soiled by other types of impurity such as mud or ice.PRIOR ART[0002]Falls caused by involuntary slipping are among the most frequent and serious causes of accidents at the present time. This is particularly true of accidents at work, and specialists in the field have been searching for some time for ways of decreasing the frequency and seriousne...

Claims

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Application Information

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IPC IPC(8): A43B13/22
CPCA43B13/223A43B3/0036
Inventor JARA, ADAMLARREGAIN, AMAUDMUHLHOFF, OLIVIER
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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