EP2548465B1 - Schuh mit verbesserter Sohle - Google Patents

Schuh mit verbesserter Sohle Download PDF

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Publication number
EP2548465B1
EP2548465B1 EP12005003.4A EP12005003A EP2548465B1 EP 2548465 B1 EP2548465 B1 EP 2548465B1 EP 12005003 A EP12005003 A EP 12005003A EP 2548465 B1 EP2548465 B1 EP 2548465B1
Authority
EP
European Patent Office
Prior art keywords
layer
shoe
opening
sole assembly
wear layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP12005003.4A
Other languages
English (en)
French (fr)
Other versions
EP2548465A1 (de
Inventor
René Borel
Frédéric Cretinon
Patrick Leick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP2548465A1 publication Critical patent/EP2548465A1/de
Application granted granted Critical
Publication of EP2548465B1 publication Critical patent/EP2548465B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
    • A43B13/127—Soles with several layers of different materials characterised by the midsole or middle layer the midsole being multilayer
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/141—Soles; Sole-and-heel integral units characterised by the constructive form with a part of the sole being flexible, e.g. permitting articulation or torsion
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223—Profiled soles

Definitions

  • the invention relates to a shoe, and relates in particular to a shoe for the practice of a sport.
  • Such shoes can be used in areas such as walking, sports or not, or running on flat terrain or in the mountains, mountaineering, or wheeling, a ball sport, or other.
  • a shoe may include a low or high shaft.
  • the shoe can also be relatively flexible or on the contrary more rigid. However, whatever its general appearance or the activity practiced, the shoe must meet the expectations of a user.
  • the shoe minimizes user fatigue. This naturally leads to providing a shoe structure whose mass is reduced. This characteristic is important in all areas mentioned before, especially those of running or walking. Indeed, a reduced mass is synonymous with low inertia, and therefore less fatigue.
  • the wear layer which is intended to support the ground, is generally made of rubber, a material which has high adhesion capacity, but which is of high density. This is why openings may be provided to lighten the wear layer, and the entire shoe accordingly.
  • transverse slots In the field of running or walking, it is for example known to make transverse slots in the wear layer. These slots alleviate the shoe and also promote longitudinal flexing of the outer sole, for a good unwinding of the foot.
  • each opening is an interruption of the wear layer which forms a passage for any foreign body that could lodge there. It may be mineral portions, branches, any protruding relief, or small bodies such as pebbles, debris, or other. The introduction of a foreign body into an opening may cause deformation or deterioration of the outer sole, and possibly also trauma to the user's foot.
  • the reinforcing layer is generally made of a thin synthetic material. This gives it both a puncture resistance and a reduced mass, to preserve the lightness of the sole.
  • a shoe obtained by providing openings in its wear layer is both lighter and puncture resistant.
  • it has the disadvantage of having a decreased ability to grip the ground. This means that it can, for example, skid when subjected to a solicitation that would be insufficient to derail a shoe of the same size without opening.
  • This phenomenon of skidding, or accidental slippage can occur during ground support, especially on slopes, as well as during pulses related to acceleration, braking, or other. It follows that walking or running is less precise, less secure and, what is a paradox, a source of fatigue for the user.
  • the general object of the invention is to improve the shoes according to the prior art.
  • the aim sought above is to increase the adhesion to the ground, despite the decrease in the surface area of the wear / adhesion layer.
  • Another object of the invention is to decline this adhesion in a broad manner, that is to say to obtain it as well on wet, wet, or soiled as on more land. predictable, such as dry land.
  • a further object of the invention is to provide at the level of the outer sole a certain damping capacity.
  • the invention seeks to optimize the behavior of the sole assembly during the entirety, or at least a significant part, of its contact with the ground, according to the activity practiced, and / or the terrain encountered.
  • Another object of the invention is to improve the accuracy in the transmission of sensory information or pulses related to walking or running.
  • a further object of the invention is to reduce as much as possible the mass of the outer sole.
  • an object of the invention is to gather in a single shoe the ability of free and steady unfolding of the sole on the ground, sufficient adhesion on a regular floor, and sufficient adhesion or grip on a floor irregular. It means a versatile shoe, more effective in all situations, and on all terrains.
  • the invention provides a shoe comprising an outer sole and a rod, according to claim 1.
  • the damping layer dampens shocks, pulses related to running or walking, or sensory information that passes between the wear layer and the reinforcing layer.
  • the damping layer serves as a mechanical filter.
  • this layer allows small elastic displacements, which are reversibly, subdivisions or the entire wear layer relative to the reinforcing layer.
  • the damping layer absorbs excess energy related to bearings, shocks, pulses, changes of terrain or relief, or the transit of sensory information. It follows that it is necessary to apply more energy to the outer sole, compared to a shoe without a damping layer, to obtain a slip or inadvertent sliding.
  • the shoe according to the invention has a better adhesion to the ground that a shoe whose sole has no cushioning layer between the wear layer and the reinforcing layer.
  • the improvement of the adhesion to the ground, for the shoe of the invention is obtained on diverse grounds, that is to say, wet, wet, or dry, flat or sloping and smooth or with reliefs, especially because of the effect "double crampon” or crampon size increased at the periphery of the openings.
  • the damping layer improves the behavior of the sole assembly during a significant part, even the entirety, of its contact with the ground.
  • the invention also improves the accuracy in the transmission of sensory information or pulses, because skidding is reduced or non-existent.
  • the invention minimizes user fatigue by giving the outer sole a low mass, since the damping layer is light, and providing improved shock absorption.
  • the shoe of the invention combines the ability of free unwinding and uniform grounding, sufficient adhesion on a regular floor, and adhesion or hanging on uneven ground.
  • the shoe is therefore versatile, effective in all situations.
  • the first embodiment that will be described after more specifically relates to shoes for walking or running flat or on rough ground.
  • the invention applies to other fields such as those mentioned before.
  • a walking shoe is provided to accommodate the foot of the user.
  • the boot 1 comprises an outer sole 2, which extends in a longitudinal direction L between a rear end 3 and a front end 4, and in a transverse direction W between a lateral edge 5 and a medial edge 6.
  • the sole assembly 2 comprises a rear portion, or heel 7, and a front portion 8.
  • the sole assembly 2 is in one piece, in the direction in which the heel 7 and the front portion 8 extend. one another.
  • these parts 7, 8 could be separated and spaced from each other.
  • the shoe 1 comprises a rod 9 disposed on the sole.
  • the rod 9 comprises a lower portion 10, provided to surround the foot, excluding an upper portion.
  • the stem also comprises an upper portion.
  • the rod 9 is not shown in detail.
  • the rod 9 may comprise in particular a lateral quarter 12, a medial quarter 13, and a tongue.
  • the latter not visible in the figures, connects the one to the other quarters 12, 13 to give the rod 9 its continuity. However, it could be planned not to use a tab. In this case, the neighborhoods 12, 13 may remain separate or superimposed.
  • a clamping device is generally provided for clamping the rod 9 reversibly.
  • the shoe 1 could be devoid of clamping device.
  • the outer sole 2 has a contact face 20 with the ground.
  • This face 20 is by definition intended to make contact with the ground or with various supports. More concretely, as we see better on the figure 2 the outer soleing 2 comprises a wear layer 21 provided to bear on the ground. It is this wear layer 21 which defines the contact face 20.
  • the wear layer 21 is a one-piece piece, which extends from the rear end 3 to the front end 4, and from the side edge 5 to the medial edge 6. In fact the wear layer 21 extends along the entire contact face 20.
  • the wear layer 21 is made of rubber. This material indeed offers good characteristics of adhesion to the ground. However, other synthetic materials offering equal or equivalent adhesion properties may also be suitable.
  • the wear layer 21 has at least one through opening 31, 32, 33, 34, 35, 36, 37. This means that the wear layer 21 is perforated, in the direction of its thickness, at each opening 31 to 37.
  • the wear layer 21 has seven openings 31 to 37, but could alternatively have a lower number or a larger number. The openings lighten the outer sole 2.
  • the latter further comprises at least one reinforcing layer 41 disposed between the wear layer 21 and the rod 9, the reinforcing layer 41 extending at least partially at the opening 31 to 37. More specifically, as regards the embodiment of the invention, the reinforcing layer 41 closes each opening 31 to 37 of the wear layer 21 on its side 42 opposite to the contact face 20. This provides resistance to perforations or intrusions for all openings 31 to 37.
  • a damping layer 45 is disposed between the wear layer 21 and the reinforcing layer 41.
  • the damping layer 45 dampens shocks, pulses or other stresses that pass through the outer sole assembly 2, particularly between the wear layer 21 and the reinforcing layer 41. Indeed, all or subdivisions of the damping layer 45 are deformed, elastically and reversibly, to allow a relative displacement of the wear layer 21 or subdivisions of this layer relative to the reinforcing layer 41.
  • the deformations of the damping layer dissipate energy which, by corollary, increases the intensity of stress required to derail the shoe. They also allow a better adaptation of the layer of wear to various forms and terrain reliefs. In other words, the ground adhesion is better with the shoe of the invention.
  • the damping layer 45 has at least one opening 51, 52, 53, 54, 55, 56 or 57. This gives this layer 45 a minimum mass. As a result, the shoe 1 remains light, and the wearer fatigue is reduced.
  • At least one opening 51 to 57 of the damping layer 45 coincides with an opening 31 to 37 of the wear layer 21.
  • an opening of the damping layer 45 is aligned. with an opening of the wear layer 21 in the direction of the thickness of the outer soleplate 2.
  • the reinforcing layer 41 closes the open cavity formed together by an opening of the wear layer 21 and an opening of the Damping layer 45. It follows that the damping layer 45 dampens shocks or pulses at the periphery of an opening, or even all. This allows good adhesion of the shoe on uneven ground, especially when the wear layer 21 contacts a relief of the ground at an opening.
  • each opening 51 to 57 of the damping layer 45 coincides with an opening 31 to 37 of the wear layer 21. Since the respective openings of the Damping layers 45 and wear 21 are distributed over the entire outer sole 2, the damping is efficient everywhere under the shoe.
  • At least one opening 31 to 37 of the wear layer 21 is a transverse slot, that is to say oriented in the transverse direction W.
  • This slot has a generally oblong shape having a certain dimension in the direction longitudinal, but could alternatively be rectangular, have a diamond shape, or other. In all cases, the slot promotes longitudinal bending of the outer sole 2, for a smooth running of the foot.
  • each slot 31 to 37 is an open cavity on the side of the contact face 20, which cavity cooperates with the reliefs of rough terrain for better grip. Indeed, each circumference of a slot 31 to 37 forms an obstacle to inadvertent sliding, by cooperation with the relief.
  • At least one opening 51 to 57 of the damping layer 45 is a transverse slot.
  • the longitudinal flexion of the outer sole 2 is favored, for a smooth running of the foot.
  • at least one slot of the damping layer is aligned with a slot of the wear layer.
  • each slot 51 to 57 of the damping layer 45 is the extension of a slot 31 to 37 of the wear layer, in the direction of the thickness of the sole assembly 2.
  • the contact face 20 advantageously has several lines or alignments of successive bumps and hollows as will be seen later, namely a first line 61, a second line 62, and a third 63, oriented in the longitudinal direction L. It could alternatively be provided only two lines or, conversely, more than three. For example four or five lines. In all cases the contact face 20 has a first line 61, the first line 61 having alternating bumps 71 to 78 and recesses 81 to 87.
  • the contact face 20 has a second line 62, the second line 62 having an alternation of bumps 91 to 98 and hollows 101 to 107, the bumps 71 to 78 and the hollows 81 to 87 of the first line 61 being arranged alternately with respect to the bumps 91 to 98 and the recesses 101 to 107 of the second line 62.
  • at least one hollow 101 to 107 of a line 62 is delimited, at its perimeter, by an opening 31 to 37 of the wear layer 21 and an opening 51 to 57 of the outer layer. 45.
  • the second line 62 is contiguous with the first line 61, a bump of the second line being beside a hollow of the first line, and a hollow of the second line being adjacent to a hump of the second line.
  • the hollows and bumps contiguous type are shifted in the longitudinal direction. This allows the outer sole 2 to unfold regularly and freely on a regular floor, to adhere sufficiently on this soil, and also to adhere or hang, reversibly, on uneven ground.
  • the shoe according to the first embodiment is therefore versatile.
  • the reinforcing layer 41 extends completely at the level of at least one opening 31 to 37 of the wear layer 21 and the associated opening 51 to 57 of the damping layer 45. This optimizes the resistance of the sole assembly 2 to the perforations and also protects the user's foot from contact with pebbles, reliefs.
  • the damping layer 45 extends along the entire contact face 20.
  • the damping layer 45 extends from the end 3 to the front end 4, as well as from the lateral edge 5 to the medial edge 6. This makes the behavior of the outer sole 2 homogeneous over the entire contact face 20.
  • the damping layer 45 is made of a plastic foam. It may for example be EVA, acronym for ethyl vinyl acetate, or any equivalent material.
  • the reinforcing layer 41 extends longitudinally at a value of between 30% (for example, the plate is only at the front) and 100% of the length of the sole assembly 2. This makes it possible to close the openings 31 to 37, and 51 to 57, without however occupying a zone devoid of opening. Here again it is a question of reducing as much as possible the mass of the outer soleing 2.
  • the reinforcing layer 41 is made of a synthetic material. This is for example polyurethane, polyamide, or any comparable material.
  • the thickness of the reinforcement 41 is between 0.1 and 2 mm, knowing that values between 0.2 and 0.6 mm have given good results. This combines puncture resistance and bending ability. The smooth running of the foot is preserved.
  • a comfort layer 110 may also be arranged along the reinforcing layer 41 on the other side of the cushioning layer 45. In fact, this comfort layer 110 takes place between the damping layer 45 and a first mounting layer 111. It is a matter of optimizing the compromise between the transmission of pulses or sensory information and the comfort of the user's foot. It can have the same thickness as the cushioning layer 45 or be thicker to ensure the comfort of the foot.
  • a cushioning layer 45 of an outer sole 2 with its ends 3, 4 and edges 5, 6.
  • What is specific to the second embodiment is the manner in which the openings are closed. It is here used several layers of reinforcement, namely a first 121 and a second 122, arranged one towards the front of the sole assembly 2, and the other rearward. Each of these reinforcing layers 121, 122 can go to the medial edge 6, lateral 5 of the sole.
  • This solution is suitable for a sole assembly that has a reduced number of openings or slots.
  • a comfort layer 110 is also provided.
  • the reinforcing layer 121, 122 extends longitudinally, for example, according to a value between 20 and 45% of the length of the sole assembly 2.
  • the invention is made from materials and according to techniques of implementation. known to those skilled in the art.

Claims (9)

  1. Schuh (1), der eine Laufsohle (2) und ein Oberteil (9) enthält, wobei die Laufsohle (2) sich in der Länge von einem hinteren Ende (3) bis zu einem vorderen Ende (4) und in der Breite zwischen einem seitlichen Rand (5) und einem innenliegenden Rand (6) erstreckt, wobei die Laufsohle (2) eine Kontaktseite (20) mit dem Boden aufweist, wobei die Laufsohle (2) eine Verschleißschicht (21) enthält, die vorgesehen ist, um auf dem Boden aufzulegen, wobei die Verschleißschicht (21) mindestens eine Durchgangsöffnung (31 bis 37) aufweist, wobei die Öffnung (31 bis 37) der Verschleißschicht (21) ein auf der Seite der Kontaktseite (20) offener Hohlraum ist, wobei die Durchgangsöffnung (31 bis 37) ein Querschlitz ist, wobei die Laufsohle (2) eine Verstärkungsschicht (41, 121, 122) enthält, die zwischen der Verschleißschicht (21) und dem Oberteil (9) angeordnet ist, wobei die Verstärkungsschicht (41, 121, 122) sich insgesamt im Bereich der Öffnung (31 bis 37) erstreckt, wobei eine Dämpfungsschicht (45) zwischen der Verschleißschicht (21) und der Verstärkungsschicht (41) angeordnet ist, wobei die Dämpfungsschicht (45) sich vom hinteren Ende (3) bis zum vorderen Ende (4) sowie vom seitlichen Rand (5) bis zum innenliegenden Rand (6) gemäß der Gesamtheit der Kontaktseite (20) erstreckt, wobei die Dämpfungsschicht (45) mindestens eine öffnung (51 bis 57) aufweist, wobei die Öffnung der Dämpfungsschicht (45) ein Querschlitz ist, wobei die Öffnung (51 bis 57) der Dämpfungsschicht (45) mit der Öffnung (31 bis 37) der Verschleißschicht (21) zusammenfällt,
    dadurch gekennzeichnet, dass die Verschleißschicht (21) ein einstückiges Bauteil ist, das sich vom hinteren Ende (3) bis zum vorderen Ende (4) und vom seitlichen Rand (5) bis zum innenliegenden Rand (6) erstreckt, und dass die Laufsohle (2) unbedingt die Verschleißschicht (21), die Dämpfungsschicht (45) und die Verstärkungsschicht (41) enthält.
  2. Schuh (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Kontaktseite (20) eine erste Reihe (61) aufweist, wobei die erste Reihe (61) eine Wechselfolge von Wölbungen (71 bis 78) und Vertiefungen (81 bis 87) aufweist, dass die Kontaktseite (20) eine zweite Reihe (62) aufweist, wobei die zweite Reihe (62) eine Wechselfolge von Wölbungen (91 bis 98) und Vertiefungen (101 bis 107) aufweist, wobei die Wölbungen (71 bis 78) und die Vertiefungen (81 bis 87) der ersten Reihe (61) abwechselnd bezüglich der Wölbungen (91 bis 98) und der Vertiefungen (101 bis 107) der zweiten Reihe (62) angeordnet sind, und dass mindestens eine Vertiefung (101 bis 107) einer Reihe (62) im Bereich ihres Umfangs von einer Öffnung (31 bis 37) der Verschleißschicht (21) und von einer Öffnung (51 bis 57) der Dämpfungsschicht (45) begrenzt wird.
  3. Schuh (1) nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Verschleißschicht (21) sich gemäß der Gesamtheit der Kontaktseite (20) erstreckt.
  4. Schuh (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichet, dass die Verschleißschicht (21) aus Kautschuk besteht.
  5. Schuh (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Dämpfungsschicht (45) sich gemäß der Gesamtheit der Kontaktseite (20) erstreckt.
  6. Schuh (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Dämpfungsschicht (45) aus einem Kunststoffschaum besteht,
  7. Schuh (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Verstärkungsschicht (41) sich in Längsrichtung gemäß einem Wert zwischen 70 und 100% der Länge der Sohle (2) erstreckt.
  8. Schuh (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Verstärkungsschicht (121, 122) sich in Längsrichtung gemäß einem Wert zwischen 20 und 45% der Länge der Sohle (2) erstreckt.
  9. Schuh (1) nach einem der Ansprüche 1 bis 8, dadurch gekenntzeichnet, dass die Verstärkungsschicht (41, 121, 122) aus Kunststoff besteht.
EP12005003.4A 2011-07-20 2012-07-05 Schuh mit verbesserter Sohle Not-in-force EP2548465B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1102264A FR2978019B1 (fr) 2011-07-20 2011-07-20 Chaussure a semelage ameliore

Publications (2)

Publication Number Publication Date
EP2548465A1 EP2548465A1 (de) 2013-01-23
EP2548465B1 true EP2548465B1 (de) 2017-10-04

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EP12005003.4A Not-in-force EP2548465B1 (de) 2011-07-20 2012-07-05 Schuh mit verbesserter Sohle

Country Status (6)

Country Link
US (1) US9526298B2 (de)
EP (1) EP2548465B1 (de)
CN (1) CN102885433B (de)
BR (1) BR102012017989A2 (de)
FR (1) FR2978019B1 (de)
RU (1) RU2602047C2 (de)

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Also Published As

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US20130019505A1 (en) 2013-01-24
FR2978019B1 (fr) 2014-08-15
RU2012129354A (ru) 2014-01-20
RU2602047C2 (ru) 2016-11-10
CN102885433A (zh) 2013-01-23
BR102012017989A2 (pt) 2014-02-18
US9526298B2 (en) 2016-12-27
CN102885433B (zh) 2016-12-21
FR2978019A1 (fr) 2013-01-25
EP2548465A1 (de) 2013-01-23

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