EP3050452A1 - Footwear element - Google Patents

Footwear element Download PDF

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Publication number
EP3050452A1
EP3050452A1 EP16000006.3A EP16000006A EP3050452A1 EP 3050452 A1 EP3050452 A1 EP 3050452A1 EP 16000006 A EP16000006 A EP 16000006A EP 3050452 A1 EP3050452 A1 EP 3050452A1
Authority
EP
European Patent Office
Prior art keywords
reinforcement
footwear
footwear element
outer sole
length
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.)
Withdrawn
Application number
EP16000006.3A
Other languages
German (de)
French (fr)
Inventor
François Girard
Philippe Margolliet
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 EP3050452A1 publication Critical patent/EP3050452A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00—Non-skid devices or attachments
    • A43C15/06—Ice-gripping devices or attachments, e.g. ice-spurs, ice-cleats, ice-creepers, crampons; Climbing devices or attachments, e.g. mountain climbing irons
    • A43C15/061—Ice-gripping devices or attachments, e.g. ice-cleats, ice-creepers
    • A43C15/063—Ice-gripping devices or attachments, e.g. ice-cleats, ice-creepers with ice-gripping means projecting from the front foot region
    • 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/42—Filling materials located between the insole and outer sole; Stiffening materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/16—Overshoes
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes
    • A43C11/14—Clamp fastenings, e.g. strap fastenings; Clamp-buckle fastenings; Fastenings with toggle levers
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00—Non-skid devices or attachments
    • A43C15/06—Ice-gripping devices or attachments, e.g. ice-spurs, ice-cleats, ice-creepers, crampons; Climbing devices or attachments, e.g. mountain climbing irons
    • A43C15/061—Ice-gripping devices or attachments, e.g. ice-cleats, ice-creepers
    • A43C15/066—Ice-gripping devices or attachments, e.g. ice-cleats, ice-creepers with ice-gripping means projecting from the heel area, e.g. ice spurs
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C15/00—Non-skid devices or attachments
    • A43C15/06—Ice-gripping devices or attachments, e.g. ice-spurs, ice-cleats, ice-creepers, crampons; Climbing devices or attachments, e.g. mountain climbing irons
    • A43C15/068—Climbing devices or attachments, e.g. glacier crampons, mountain climbing irons

Definitions

  • the invention relates to a footwear element comprising an outer sole and a flexible upper, as well as points that protrude at an outer face of the outer sole.
  • the footwear element is intended to house a shoe, including sports.
  • the invention also relates to an assembly comprising the footwear element and the shoe.
  • the footwear element as well as the shoe, can be used in areas such as walking or running on horizontal terrain, hilly or mountainous, mountaineering, or climbing.
  • the shoe is known per se. It includes a flexible outer sole and a flexible shaft, which allows a user to walk, run, or practice a sport in the usual conditions, that is to say sometimes on dry ground, or sometimes on wet, wet or even muddy, snowy or ice-covered terrain. Walking, running or playing a sport is difficult or even dangerous when the terrain is degraded or naturally difficult. This is particularly the case for soils made slippery for example because of mud, snow, ice, or other. To cope with situations such as those mentioned above, it is known to cover the shoe with a footwear element, which is precisely designed to facilitate walking, running or playing a sport on difficult terrain.
  • the footwear element comprises an outer sole and a flexible upper, as well as points that protrude at an outer face of the outer sole.
  • the footwear element allows the user to walk, run, or more generally to evolve on degraded or naturally difficult terrain.
  • the footwear element is particularly suitable for snow or ice.
  • the user can practice his activity in good conditions, that is to say, in particular with a good level of comfort or a good level of security.
  • it has emerged that the use of a footwear item with spikes sometimes poses certain problems.
  • a first problem is that of the precision of the supports or, more broadly, the precision of the transmissions of sensory information. This first problem occurs especially during extreme conditions of use. Under these conditions, the footwear element hardly keeps a stable position on the ground. This is the case, for example, for glacier evolutions or ice cascades. In these environments, the soil is often very sloping, and sometimes almost vertical or vertical; parasitic movements of the footwear element relative to the ground are then observed, movements that alter the precision of the supports, the precision of the transmissions of sensory information. It can be said that a footwear element according to the prior art limits the possibilities of evolution on difficult terrain; this element is not suitable for all terrains.
  • Comfort should be understood as a situation in which the user sees moderate fatigue, as well as an absence or near absence of trauma. In fact to compensate for the lack of precision in the supports or transmissions, as we have seen, the user often makes excessive efforts that are a source of additional fatigue and possibly trauma.
  • the general object of the invention is the improvement of a footwear element provided with spikes. More specifically, the invention seeks to improve the accuracy of the supports or, more broadly, the accuracy of transmissions of sensory information. The invention also seeks to reduce the fatigue of the user, and also to reduce or even completely eliminate the generation of trauma related to the use of the footwear element. In other words, the invention seeks to improve the comfort of the footwear element, at least as regards its use in extreme conditions.
  • the invention provides a footwear element comprising a flexible outer sole and a flexible upper, which define a boot volume, the footwear element extending in length from a rear end to a front end, in width between a lateral portion and a medial portion, and in height from an outer face of the outer sole to an upper end, the footwear element having a boot opening, the footwear element comprising points that project at the level of the outer face of the outer sole.
  • the footwear element according to the invention is characterized in that it comprises a removable reinforcement which has the general appearance of a plate, the reinforcement extending in length from a rear end to a front end, width between a lateral edge and a medial edge, and in thickness between a bearing face and a receiving face, the reinforcement being arranged opposite the outer sole, the reinforcement being substantially indeformable in longitudinal flexion, along a transverse axis.
  • the footwear element When the reinforcement is removed from its functional location, the footwear element has a flexibility that promotes a smooth running of the foot. The user is therefore able to evolve accurately and in good conditions of comfort on easy terrain, that is to say, slightly uneven or slightly inclined. Conversely, when the reinforcement is placed in relation to the sole assembly, the footwear element has a greater rigidity, at least at the level of the outer sole, which makes it possible to take hold on a very steep ground, almost vertical or vertical. It can be said that the reinforcement makes it possible to modify the rigidity of the footwear element in order to adapt it to the desired conditions of use. The stiffness is increased mainly at the level of the outer sole, which has the effect of distributing the forces of support over a large extent of the footwear, and therefore over a large extent of the foot of the user. The perception of support and sensory information by the user is more reliable, more consistent.
  • Another advantage that arises from the foregoing is that of improving the comfort of the footwear element when used in difficult conditions.
  • the fatigue of the user is moderate, and the traumas are absent or very little present.
  • the invention makes the footwear more versatile, giving it precision and comfort in all situations, provided that we took care to put the reinforcement in place or remove it for the purpose sought .
  • the invention improves a footwear element which includes spikes.
  • the first embodiment that will be described after more specifically relates to a footwear element for walking or running on snow or ice, or for climbing in ice cascades.
  • the invention applies to other fields such as those mentioned before.
  • a footwear element 1 is provided to accommodate a walking shoe or race 2, itself intended to accommodate the foot of the user.
  • the footwear element 1 comprises a flexible outer sole 3 and a flexible upper 4.
  • the footwear element extends in length from a rear end or heel 5 to a front end or tip 6, and in width between a lateral part 7 and a medial part 8.
  • the footwear element 1 also comprises spikes 9 which protrude at an outer face 10 of the outer sole 3.
  • the implantation of the spikes 9 is not detailed here, although it can be specified that each spike 9 is used to improve the adhesion of the footwear element 1 on slippery ground, with snow or ice.
  • the rod 4 comprises a first portion or lower portion 11, provided to surround the foot via the shoe 2, and an upper portion 12, which extends the lower portion 11 in a direction away from the outer sole 3, the upper portion 12 being provided to cover at least the ankle of the user, or the ankle and a portion of the lower leg.
  • the footwear element comprises only a low portion.
  • the upper portion 12 of the rod 4 increases the outer surface of the footwear element 1, with respect to an element whose stem only comprises a low portion.
  • the upper portion 12 of the upper 4 also increases the amount of footwear and protection of the footwear element.
  • the specific properties of the lower portion 11 of the rod such as water or snowtightness, or thermal insulation, are extended by the upper portion 12.
  • these are at the same time the foot , the ankle and part of the lower leg that are protected. Water, snow or ice can hardly penetrate, if at all, inside the footwear element 1.
  • the boot 2 is therefore also protected.
  • the shoe 2 comprises a flexible outer sole 13 and a flexible upper 14.
  • the boot 2 extends in length from a rear end or heel 15 to a front end or tip 16, and in width between a lateral portion 17 and a medial portion 18.
  • the shoe 2 comprises a lower portion 19 to the exclusion of any upper portion.
  • the shoe 2 extends in height from the outer sole 13 to an upper end 20, that is to say to the free end of the lower portion 19 or the rod 14.
  • the footwear element 1 extends in height from the outer soleing 3 to an upper end 21, that is to say up to the free end of the upper portion 12 or the rod 4
  • the upper end 20 of the rod 14 is closer to the outer sole 3 than is the upper end 21. This reflects the fact that the stem 4 of the footwear item 1 extends the cover obtained by the upper 14 of the shoe 2.
  • the lower portion 11 and the upper portion 12 of the footwear element 1 form a continuous envelope. This means that no passage remains for the intrusion of foreign bodies. This also means that the protection provided by the flexible rod 4 extends both at the lower portion 11 and at the upper portion 12.
  • the footwear element 1 has a boot opening 25.
  • This 25 extends from the upper end 21 to the outer sole 3.
  • the opening 25 has a subdivision upper 26 designed to let the foot, and also to surround the lower leg after footwear.
  • the boot opening 25 of the flexible upper 4 has a lateral lower subdivision 27 and a medial subdivision 28, which allow a variation in size of the opening and a variation of the boot volume.
  • the upper 26 and lower 27 lateral subdivisions extend one another
  • the upper 26 and lower medial 28 subdivisions extend one another. This arrangement allows the introduction of the shoe 2 in the footwear element 1, or its withdrawal.
  • the arrangement above allows the introduction or withdrawal of the foot, at the same time as the shoe. It is specified in passing that it is possible to provide a construction alternative for which the boot opening 25 has the upper subdivision 26, and a rear lower subdivision. In this case, the latter extends at the level of the lower leg and the heel, between the upper end 21 and the rear end 5 at the level of the outer sole 3.
  • the upper subdivision 26 and the lower rear subdivision are prolonged. one another.
  • the footwear element 1 also comprises closure means 29 of the lower lateral subdivision 27 of the boot opening 25, as well as closing means 30 of the medial lower subdivision 28 of the boot opening 25.
  • rod 4 in contact with the shoe 2 on the one hand, and in contact with the ankle and lower leg on the other hand.
  • closure means 29, 30 respectively comprise slides 31, 32. These last allow a quick opening or closing of the lower subdivision 27, which saves time for shoeing or loosening.
  • closure means such as a lace device, a device with complementary bands, one of which is provided with loops and the other of hooks, or any equivalent means.
  • the arrangement near the rear of the stem of the subdivisions 27, 28 facilitates the donning of the footwear element 1 by a foot already covered with the shoe.
  • Another advantage is better resistance to the penetration of foreign bodies, especially in snowy conditions.
  • the lower subdivisions 27, 28 are located towards the rear, the front face 33 of the rod 4 is continuous from the front end 6 to the upper end 21. In other words, the front face has no passage.
  • the march is translated by advances and contacts of the rod 4 with the snow on the side of this face. Its continuity of structure is a pledge of sealing and / or protection.
  • the boot opening 25 has an upper subdivision 26 and at least one lower subdivision 27, 28, the lower subdivision 27, 28 being situated in an area which extends over 50% of the length of the footwear element 1 from the rear end 5.
  • the footwear element 1 comprises a removable reinforcement 34 which has the general appearance of a plate, the reinforcement 34 extending in length from a rear end 35 to a front end 36, in width between a lateral edge 37 and a medial edge 38, and in thickness between a bearing face 39 and a receiving face 40, the reinforcement 34 being arranged facing the outer sole 3, the reinforcement 34 being substantially indeformable in longitudinal flexion, along a transverse axis.
  • the footwear element 1 When the reinforcement 34 is removed from its functional location, the footwear element 1 has a flexibility that promotes a smooth running of the foot. The user is therefore able to evolve accurately and in good conditions of comfort on easy terrain, that is to say, slightly uneven or slightly inclined. Conversely, when the reinforcement 34 is put in place opposite the outer soleing 3, the footwear element 1 has a greater rigidity, at least at the level of the outer sole, which allows taking support on a ground very inclined, almost vertical or vertical.
  • the reinforcement 34 makes it possible to modify the rigidity of the footwear element 1 to adapt it to the desired conditions of use.
  • the stiffness is increased mainly at the level of the outer sole, which has the effect of distributing the forces of support over a large extent of the footwear, and therefore over a large extent of the foot of the user.
  • the perception of support and sensory information by the user is more reliable, more consistent.
  • the precision of the supports or, more generally, the precision of the sensory information transmissions is obtained in environments where the ground is very inclined, almost vertical or vertical.
  • the footwear element is provided with frontal spikes
  • the user can climb steep slopes or walls by relieving muscular effort in the calves and muscles of the feet.
  • the stiffening of the footwear reduces fatigue due to a lever effect, between the points that catch the ice in the front and the heel.
  • the fatigue of the user is moderate, and the traumas are absent or very little present.
  • the reinforcement 34 is intended to reinforce a substantial part of the footwear element 1, that is to say here a substantial part of the outer sole 3.
  • the reinforcement 34 has a length of between 80 and 100% of the length of the outer sole 3, and a width between 80 and 100% of the width of the outer sole 3.
  • the reinforcement 34 has a length of between 90 and 100% of the length of the outer sole, and a width of between 90 and 100% of the width of the outer sole. This makes it possible to transmit the efforts related to the supports, and in fact all the sensory information, on all or almost all of the foot.
  • the thickness of the reinforcement 34 is between 1 and 6 mm. These values have given good results, knowing that they vary according to the chosen material or materials, which will be presented later. In any case, it is necessary to adopt a compromise between the weight of the reinforcement 34 and its flexural strength. If the thickness is important the bending strength is important, but the weight is also a little more important. This amounts to significantly improving the transmission of sensory information, while slightly weighting the footwear element. Conversely, if the thickness is less important the flexural strength is less important, but the weight is also a little less important. In this case the transmission of sensory information is improved in a more measured proportion, but the footwear element remains lighter. In the end everything is a compromise, and the user can actually choose the reinforcement that suits him best, among several reinforcements with different properties, to adjust the behavior of the footwear element to his needs.
  • the reinforcement 34 is disposed inside the boot volume. This is delimited by the outer sole and the stem.
  • reinforcement is inserted into the footwear to take place opposite the outer sole 3, for example by being placed directly in contact with the latter.
  • the bearing face 39 of the reinforcement 34 comes directly into contact with the outer sole 3.
  • the reinforcement 34 comprises a synthetic material.
  • the reinforcement is for example made of one or more layers of materials such as polyamide, polyurethane, polyethylene, or any similar material.
  • the reinforcement 34 may also comprise one or more layers of fibers or portions of fibers embedded in thermoformable or thermosetting materials, such as resins or any suitable plastics material.
  • the fibers are arranged in all possible ways, for example by being woven.
  • the footwear element comprises a clamping device 41 secured to the reinforcement 34, the clamping device 41 being provided for tightening a shoe 2 and / or a foot accommodated in the footwear volume. This is to ensure that the foot is immobilized relative to the reinforcement 34, for a better perception of sensory information, and a better transmission of efforts which ultimately will allow better attachment of the tips in the snow or in the ice , especially if the user is moving in a very steep or vertical wall.
  • the clamping device 41 consists of straps 42, 43 or portions of straps that can be held in a clamping position, for example by means of a locking device 44.
  • the clamping device 41 is located at a zone of the reinforcement 34 which extends from the rear end 35 towards the front end 36, over a distance of between 10 and 45% of the length of the reinforcement 34. allows to press the user's foot on the heel of the footwear element 1.
  • the reinforcement 54 has the general appearance of a plate, the reinforcement 54 extending in length from a rear end 55 to a front end 56, in width between a lateral edge 57 and a medial edge 58, and in thickness between a bearing face 59 and a receiving face 60 , the reinforcement 54 being arranged facing the outer sole 3, the reinforcement 54 being substantially indeformable in longitudinal flexion, along a transverse axis.
  • the footwear element 1 comprises a tightening device 61 secured to the outer sole assembly 3 and / or to the upper 4, the tightening device 61 being provided for tightening a boot 2 and / or a foot housed in the footwear volume. Again, this is to ensure that the foot is immobilized relative to the reinforcement 54, for a better perception of sensory information, and a better transmission of efforts that ultimately will allow better attachment of the tips in the snow or ice, especially if the user is moving in a very steep wall or vertical.
  • the clamping device 61 consists of straps 62, 63 or portions of straps that can be held in a clamping position, for example by means of a locking device 64.
  • the clamping device 61 is located at a zone of the reinforcement 54 which extends from the rear end 55 towards the front end 56, over a distance of between 10 and 45% of the length of the reinforcement 54. allows to press the user's foot on the heel of the footwear element 1.
  • the invention covers an assembly comprising a low-stemmed shoe 2 and a footwear element 1.
  • the outer soleing 3 comprises for example one or more layers of synthetic material. Without limitation, it may be provided a layer of material such as a polyurethane, whose thickness is between 3 and 7 mm.
  • the footwear element 1 comprises a spike before 65 and a rear spike 66. It may alternatively be provided only a front spike, or only a rear spike, but the use of two spikes improves the ability of the footwear to cooperate with snow or ice.
  • a crampon comprises for example a body 67 which carries the tips 9, as can be seen on the figure 2 .
  • the reinforcement may have a geometry in three dimensions, always with the general appearance of a plate, but being bordered by a wall, discontinuous or continuous, for example peripheral, for a better transverse wedging of the shoe housed in the footwear element.
  • clamping device 41, 61 is internal to the footwear element.
  • clamping device is external to the footwear element.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Elément chaussant (1) comprenant un semelage externe souple (3) et une tige souple (4), lesquels délimitent un volume de chaussage, l'élément chaussant (1) s'étendant en longueur depuis une extrémité arrière (5) jusqu'à une extrémité avant (6), en largeur entre une partie latérale (7) et une partie médiale (8), et en hauteur depuis une face externe (10) du semelage externe (3) jusqu'à une extrémité supérieure (21), l'élément chaussant présentant une ouverture de chaussage (25), l'élément chaussant comprenant des pointes (9) qui font saillie au niveau de la face externe (10) du semelage externe (3). L'élément chaussant comprend un renfort amovible (34) qui présente l'aspect général d'une plaque, le renfort (34) s'étendant en longueur depuis une extrémité arrière (35) jusqu'à une extrémité avant (36), en largeur entre un bord latéral (37) et un bord médial (38), et en épaisseur entre une face d'appui (39) et une face d'accueil (40), le renfort (34) étant disposé en regard du semelage externe (3), le renfort (34) étant sensiblement indéformable en flexion longitudinale, selon un axe transversal.Footwear element (1) comprising a flexible outer sole (3) and a flexible upper (4), which define a boot volume, the footwear element (1) extending in length from a rear end (5) to a front end (6), in width between a lateral part (7) and a medial part (8), and in height from an outer face (10) of the outer sole (3) to an upper end (21), the footwear element having a boot opening (25), the footwear element comprising spikes (9) which protrude at the outer face (10) of the outer sole (3). The footwear element comprises a removable reinforcement (34) which has the general appearance of a plate, the reinforcement (34) extending in length from a rear end (35) to a front end (36), width between a lateral edge (37) and a medial edge (38), and in thickness between a bearing face (39) and a receiving face (40), the reinforcement (34) being arranged facing the outer soleing (3), the reinforcement (34) being substantially indeformable in longitudinal flexion along a transverse axis.

Description

L'invention se rapporte à un élément chaussant comprenant un semelage externe et une tige souple, ainsi que des pointes qui font saillie au niveau d'une face externe du semelage externe. L'élément chaussant a vocation à loger une chaussure, notamment de sport. L'invention se rapporte également à un ensemble comprenant l'élément chaussant et la chaussure.The invention relates to a footwear element comprising an outer sole and a flexible upper, as well as points that protrude at an outer face of the outer sole. The footwear element is intended to house a shoe, including sports. The invention also relates to an assembly comprising the footwear element and the shoe.

L'élément chaussant, ainsi que la chaussure, peuvent être utilisés dans des domaines tels que la marche ou la course sur terrain horizontal, vallonné ou montagneux, l'alpinisme, ou encore l'escalade.The footwear element, as well as the shoe, can be used in areas such as walking or running on horizontal terrain, hilly or mountainous, mountaineering, or climbing.

La chaussure est connue en soi. Elle comprend un semelage externe souple et une tige souple, ce qui permet à un utilisateur de marcher, de courir, ou de pratiquer un sport dans des conditions usuelles, c'est-à-dire tantôt sur des terrains secs, ou tantôt sur des terrains humides, mouillés, voire boueux, neigeux ou couverts de glace. La marche, la course ou la pratique d'un sport sont rendues difficiles, voire dangereuses, lorsque les terrains sont dégradés ou naturellement difficiles. C'est le cas en particulier pour les sols rendus glissants par exemple à cause de boue, de neige, de glace, ou autre. Pour faire face aux situations comme celles évoquées ci-avant, il est connu de recouvrir la chaussure d'un élément chaussant, lequel est justement prévu pour faciliter la marche, la course ou la pratique d'un sport sur des terrains difficiles.The shoe is known per se. It includes a flexible outer sole and a flexible shaft, which allows a user to walk, run, or practice a sport in the usual conditions, that is to say sometimes on dry ground, or sometimes on wet, wet or even muddy, snowy or ice-covered terrain. Walking, running or playing a sport is difficult or even dangerous when the terrain is degraded or naturally difficult. This is particularly the case for soils made slippery for example because of mud, snow, ice, or other. To cope with situations such as those mentioned above, it is known to cover the shoe with a footwear element, which is precisely designed to facilitate walking, running or playing a sport on difficult terrain.

En général, l'élément chaussant comprend un semelage externe et une tige souple, ainsi que des pointes qui font saillie au niveau d'une face externe du semelage externe. Par les pointes qu'il porte, l'élément chaussant permet à l'utilisateur de marcher, de courir, ou plus généralement d'évoluer, sur des terrains dégradés ou naturellement difficiles. L'élément chaussant est notamment adapté à la neige ou à la glace. En conséquence l'utilisateur peut pratiquer son activité dans de bonnes conditions , c'est-à-dire notamment avec un bon niveau de confort ou un bon niveau de sécurité. Cependant, il est apparu que l'utilisation d'un élément chaussant muni de pointes pose parfois certains problèmes.In general, the footwear element comprises an outer sole and a flexible upper, as well as points that protrude at an outer face of the outer sole. By the points it carries, the footwear element allows the user to walk, run, or more generally to evolve on degraded or naturally difficult terrain. The footwear element is particularly suitable for snow or ice. As a result, the user can practice his activity in good conditions, that is to say, in particular with a good level of comfort or a good level of security. However, it has emerged that the use of a footwear item with spikes sometimes poses certain problems.

En effet, si les pointes rendent la marche, la course ou la pratique d'un sport plus facile en ce qui concerne par exemple l'adhérence au sol, la précision des appuis ou la transmission des informations sensorielles, on s'aperçoit que l'utilisateur est quand même gêné dans certaines conditions.Indeed, if the tips make the walk, the race or the practice of an easier sport as regards for example the adhesion to the ground, the precision of the supports or the transmission of the sensory information, one realizes that the the user is still embarrassed under certain conditions.

Un premier problème est celui de la précision des appuis ou, de façon plus large, de la précision des transmissions d'informations sensorielles. Ce premier problème survient surtout lors de conditions d'utilisation extrêmes. Dans ces conditions, l'élément chaussant conserve difficilement une position stable au sol. C'est le cas par exemple pour les évolutions sur glacier ou dans les cascades de glace. Dans ces environnements, le sol est souvent très incliné, et parfois presque vertical ou vertical ; on observe alors des mouvements parasites de l'élément chaussant par rapport au sol, mouvements qui altèrent la précision des appuis, la précision des transmissions d'informations sensorielles. On peut dire qu'un élément chaussant selon l'art antérieur limite les possibilités d'évolution sur les terrains difficiles ; cet élément n'est pas adapté à tous les terrains.A first problem is that of the precision of the supports or, more broadly, the precision of the transmissions of sensory information. This first problem occurs especially during extreme conditions of use. Under these conditions, the footwear element hardly keeps a stable position on the ground. This is the case, for example, for glacier evolutions or ice cascades. In these environments, the soil is often very sloping, and sometimes almost vertical or vertical; parasitic movements of the footwear element relative to the ground are then observed, movements that alter the precision of the supports, the precision of the transmissions of sensory information. It can be said that a footwear element according to the prior art limits the possibilities of evolution on difficult terrain; this element is not suitable for all terrains.

Un second problème est celui du confort, là encore principalement dans les conditions d'utilisation abordées avant. Le confort doit être compris comme une situation dans laquelle l'utilisateur voit sa fatigue modérée, ainsi qu'une absence ou une quasi absence de traumatismes. En fait pour compenser les manques de précision dans les appuis ou dans les transmissions, comme on l'a vu, l'utilisateur fait souvent des efforts excessifs qui sont source de fatigues supplémentaires et, éventuellement, de traumatismes.A second problem is that of comfort, again mainly in the conditions of use discussed before. Comfort should be understood as a situation in which the user sees moderate fatigue, as well as an absence or near absence of trauma. In fact to compensate for the lack of precision in the supports or transmissions, as we have seen, the user often makes excessive efforts that are a source of additional fatigue and possibly trauma.

Par rapport à cela, l'invention a pour but général l'amélioration d'un élément chaussant muni de pointes. Plus précisément, l'invention cherche à améliorer la précision des appuis ou, de façon plus large, la précision des transmissions d'informations sensorielles. L'invention cherche encore à réduire la fatigue de l'utilisateur, et aussi à réduire, ou même à totalement supprimer, la génération de traumatismes liés à l'utilisation de l'élément chaussant. En d'autres termes, l'invention cherche à améliorer le confort de l'élément chaussant, au moins en ce qui concerne son usage dans des conditions extrèmes.In relation to this, the general object of the invention is the improvement of a footwear element provided with spikes. More specifically, the invention seeks to improve the accuracy of the supports or, more broadly, the accuracy of transmissions of sensory information. The invention also seeks to reduce the fatigue of the user, and also to reduce or even completely eliminate the generation of trauma related to the use of the footwear element. In other words, the invention seeks to improve the comfort of the footwear element, at least as regards its use in extreme conditions.

Pour ce faire, l'invention propose un élément chaussant comprenant un semelage externe souple et une tige souple, lesquels délimitent un volume de chaussage, l'élément chaussant s'étendant en longueur depuis une extrémité arrière jusqu'à une extrémité avant, en largeur entre une partie latérale et une partie médiale, et en hauteur depuis une face externe du semelage externe jusqu'à une extrémité supérieure, l'élément chaussant présentant une ouverture de chaussage, l'élément chaussant comprenant des pointes qui font saillie au niveau de la face externe du semelage externe.To do this, the invention provides a footwear element comprising a flexible outer sole and a flexible upper, which define a boot volume, the footwear element extending in length from a rear end to a front end, in width between a lateral portion and a medial portion, and in height from an outer face of the outer sole to an upper end, the footwear element having a boot opening, the footwear element comprising points that project at the level of the outer face of the outer sole.

L'élément chaussant selon l'invention est caractérisé par le fait qu'il comprend un renfort amovible qui présente l'aspect général d'une plaque, le renfort s'étendant en longueur depuis une extrémité arrière jusqu'à une extrémité avant, en largeur entre un bord latéral et un bord médial, et en épaisseur entre une face d'appui et une face d'accueil, le renfort étant disposé en regard du semelage externe, le renfort étant sensiblement indéformable en flexion longitudinale, selon un axe transversal.The footwear element according to the invention is characterized in that it comprises a removable reinforcement which has the general appearance of a plate, the reinforcement extending in length from a rear end to a front end, width between a lateral edge and a medial edge, and in thickness between a bearing face and a receiving face, the reinforcement being arranged opposite the outer sole, the reinforcement being substantially indeformable in longitudinal flexion, along a transverse axis.

Lorsque le renfort est retiré de son emplacement fonctionnel, l'élément chaussant présente une souplesse qui favorise un bon déroulement du pied. L'utilisateur est donc à même d'évoluer avec précision et dans de bonnes conditions de confort sur des terrains faciles, c'est-à-dire peu accidentés ou peu inclinés. A l'inverse, lorsque le renfort est mis en place en regard du semelage, l'élément chaussant présente une rigidité plus importante, au moins au niveau du semelage externe, ce qui permet des prises d'appuis sur un terrain très incliné, presque vertical ou vertical. On peut dire que le renfort permet de modifier la rigidité de l'élément chaussant pour adapter celui-ci aux conditions d'utilisation souhaitées. La rigidité est accrue principalement au niveau du semelage externe, ce qui a pour effet de répartir les efforts liés aux appuis sur une grande étendue de l'élément chaussant, et donc sur une grande étendue du pied de l'utilisateur. La perception des appuis et des informations sensorielles par l'utilisateur est plus fiable, plus cohérente.When the reinforcement is removed from its functional location, the footwear element has a flexibility that promotes a smooth running of the foot. The user is therefore able to evolve accurately and in good conditions of comfort on easy terrain, that is to say, slightly uneven or slightly inclined. Conversely, when the reinforcement is placed in relation to the sole assembly, the footwear element has a greater rigidity, at least at the level of the outer sole, which makes it possible to take hold on a very steep ground, almost vertical or vertical. It can be said that the reinforcement makes it possible to modify the rigidity of the footwear element in order to adapt it to the desired conditions of use. The stiffness is increased mainly at the level of the outer sole, which has the effect of distributing the forces of support over a large extent of the footwear, and therefore over a large extent of the foot of the user. The perception of support and sensory information by the user is more reliable, more consistent.

Un avantage qui découle de ce qui précède est que, avec l'invention, la précision des appuis ou, de façon plus large, la précision des transmissions d'informations sensorielles, est obtenue dans des environnements où le sol est très incliné, presque vertical ou vertical.An advantage that follows from the foregoing is that, with the invention, the accuracy of the supports or, more generally, the accuracy of sensory information transmissions, is obtained in environments where the ground is very inclined, almost vertical. or vertical.

Un autre avantage qui découle de ce qui précède est celui de l'amélioration du confort de l'élément chaussant lors d'une utilisation dans des conditions difficiles. La fatigue de l'utilisateur est modérée, et les traumatismes sont absents ou très peu présents.Another advantage that arises from the foregoing is that of improving the comfort of the footwear element when used in difficult conditions. The fatigue of the user is moderate, and the traumas are absent or very little present.

En fait l'invention rend l'élément chaussant plus polyvalent, en lui conférant de la précision et du confort dans toutes les situations, pourvu que l'on ait pris soin de mettre le renfort en place ou de l'enlever selon le but recherché.In fact the invention makes the footwear more versatile, giving it precision and comfort in all situations, provided that we took care to put the reinforcement in place or remove it for the purpose sought .

On peut dire de manière générale que l'invention améliore un élément chaussant qui comprend des pointes.It can be said in general that the invention improves a footwear element which includes spikes.

D'autres caractéristiques et avantages de l'invention seront mieux compris à l'aide de la description qui va suivre, en regard des figures annexées illustrant, selon des formes de réalisation non limitatives, comment l'invention peut être réalisée, et dans lesquelles :

  • la figure 1 est une vue en perspective avant d'un ensemble qui comprend un élément chaussant et une chaussure selon une première forme de réalisation de l'invention, dans un cas où l'élément chaussant et la chaussure sont séparés l'un de l'autre,
  • la figure 2 est une coupe selon II-II de la figure 1, dans un cas où la chaussure est disposée à l'intérieur de l'élément chaussant,
  • la figure 3 est similaire à la figure 1, pour une deuxième forme de réalisation de l'invention.
Other features and advantages of the invention will be better understood with the aid of the description which follows, with reference to the appended figures illustrating, according to non-limiting embodiments, how the invention may be implemented, and in which :
  • the figure 1 is a front perspective view of an assembly which comprises a footwear element and a shoe according to a first embodiment of the invention, in a case where the footwear element and the shoe are separated from one another,
  • the figure 2 is a section on II-II of the figure 1 in a case where the shoe is disposed inside the footwear element,
  • the figure 3 is similar to the figure 1 , for a second embodiment of the invention.

La première forme de réalisation qui va être décrite après concerne plus spécialement un élément chaussant pour la marche ou la course sur neige ou sur glace, ou encore pour l'escalade dans les cascades de glace. Cependant l'invention s'applique à d'autres domaines tels que ceux évoqués avant.The first embodiment that will be described after more specifically relates to a footwear element for walking or running on snow or ice, or for climbing in ice cascades. However, the invention applies to other fields such as those mentioned before.

La première forme est décrite ci-après à l'aide des figures 1 et 2.The first form is described below using the figures 1 and 2 .

Comme le montre la figure 1, un élément chaussant 1 est prévu pour accueillir une chaussure de marche ou de course 2, elle-même prévue pour accueillir le pied de l'utilisateur.As shown in figure 1 , a footwear element 1 is provided to accommodate a walking shoe or race 2, itself intended to accommodate the foot of the user.

De manière connue, l'élément chaussant 1 comprend un semelage externe souple 3 et une tige souple 4. L'élément chaussant s'étend en longueur depuis une extrémité arrière ou talon 5 jusqu'à une extrémité avant ou pointe 6, et en largeur entre une partie latérale 7 et une partie médiale 8.In known manner, the footwear element 1 comprises a flexible outer sole 3 and a flexible upper 4. The footwear element extends in length from a rear end or heel 5 to a front end or tip 6, and in width between a lateral part 7 and a medial part 8.

L'élément chaussant 1 comprend aussi des pointes 9 qui font saillie au niveau d'une face externe 10 du semelage externe 3. L'implantation des pointes 9 n'est pas détaillée ici, même si on peut préciser que chaque pointe 9 sert à améliorer l'adhérence de l'élément chaussant 1 sur un sol glissant, avec de la neige ou de la glace.The footwear element 1 also comprises spikes 9 which protrude at an outer face 10 of the outer sole 3. The implantation of the spikes 9 is not detailed here, although it can be specified that each spike 9 is used to improve the adhesion of the footwear element 1 on slippery ground, with snow or ice.

Telle que représentée la tige 4 comprend une première portion ou portion basse 11, prévue pour entourer le pied par l'intermédiaire de la chaussure 2, ainsi qu'une portion haute 12, qui prolonge la portion basse 11 dans un sens d'éloignement du semelage externe 3, la portion haute 12 étant prévue pour couvrir au moins la cheville de l'utilisateur, ou la cheville et une partie du bas de jambe. Il peut alternativement être prévu une forme de réalisation pour laquelle l'élément chaussant comprend uniquement une portion basse.As represented by the rod 4 comprises a first portion or lower portion 11, provided to surround the foot via the shoe 2, and an upper portion 12, which extends the lower portion 11 in a direction away from the outer sole 3, the upper portion 12 being provided to cover at least the ankle of the user, or the ankle and a portion of the lower leg. Alternatively, an embodiment may be provided for which the footwear element comprises only a low portion.

La portion haute 12 de la tige 4 augmente la surface externe de l'élément chaussant 1, par rapport à un élément dont la tige ne comprendrait qu'une portion basse. En fait la portion haute 12 de la tige 4 augmente aussi le volume de chaussage et de protection de l'élément chaussant. En conséquence les propriétés spécifiques de la portion basse 11 de la tige, comme l'étanchéité à l'eau ou à la neige, ou l'isolation thermique, sont étendues par la portion haute 12. Au final ce sont à la fois le pied, la cheville et une partie du bas de jambe qui sont protégés. L'eau, la neige ou la glace peuvent difficilement pénétrer, voire pas du tout, à l'intérieur de l'élément chaussant 1. La chaussure 2 est en conséquence également protégée.The upper portion 12 of the rod 4 increases the outer surface of the footwear element 1, with respect to an element whose stem only comprises a low portion. In fact, the upper portion 12 of the upper 4 also increases the amount of footwear and protection of the footwear element. As a result, the specific properties of the lower portion 11 of the rod, such as water or snowtightness, or thermal insulation, are extended by the upper portion 12. In the end, these are at the same time the foot , the ankle and part of the lower leg that are protected. Water, snow or ice can hardly penetrate, if at all, inside the footwear element 1. The boot 2 is therefore also protected.

On précise au passage que la chaussure 2 comprend un semelage externe souple 13 et une tige souple 14. La chaussure 2 s'étend en longueur depuis une extrémité arrière ou talon 15 jusqu'à une extrémité avant ou pointe 16, et en largeur entre une partie latérale 17 et une partie médiale 18. Selon la première forme de réalisation décrite, la chaussure 2 comprend une portion basse 19 à l'exclusion de toute portion haute. La chaussure 2 s'étend en hauteur depuis le semelage externe 13 jusqu'à une extrémité supérieure 20, c'est-à-dire jusqu'à l'extrémité libre de la portion basse 19 ou de la tige 14. Dans le même ordre d'idée l'élément chaussant 1 s'étend en hauteur depuis le semelage externe 3 jusqu'à une extrémité supérieure 21, c'est-à-dire jusqu'à l'extrémité libre de la portion haute 12 ou de la tige 4. Ainsi, lorsque la chaussure 2 est placée dans l'élément chaussant 1, l'extrémité supérieure 20 de la tige 14 est plus proche du semelage externe 3 que ne l'est l'extrémité supérieure 21. Cela traduit le fait que la tige 4 de l'élément chaussant 1 étend la couverture obtenue par la tige 14 de la chaussure 2.It is specified in passing that the shoe 2 comprises a flexible outer sole 13 and a flexible upper 14. The boot 2 extends in length from a rear end or heel 15 to a front end or tip 16, and in width between a lateral portion 17 and a medial portion 18. According to the first embodiment described, the shoe 2 comprises a lower portion 19 to the exclusion of any upper portion. The shoe 2 extends in height from the outer sole 13 to an upper end 20, that is to say to the free end of the lower portion 19 or the rod 14. In the same order of idea the footwear element 1 extends in height from the outer soleing 3 to an upper end 21, that is to say up to the free end of the upper portion 12 or the rod 4 Thus, when the shoe 2 is placed in the footwear element 1, the upper end 20 of the rod 14 is closer to the outer sole 3 than is the upper end 21. This reflects the fact that the stem 4 of the footwear item 1 extends the cover obtained by the upper 14 of the shoe 2.

Toujours selon la première forme de réalisation de l'invention, la portion basse 11 et la portion haute 12 de l'élément chaussant 1 forment une enveloppe continue. Cela signifie qu'il ne subsiste aucun passage pour l'intrusion de corps étrangers. Cela veut dire aussi que la protection conférée par la tige souple 4 s'étend à la fois au niveau de la portion basse 11 et au niveau de la portion haute 12.Still according to the first embodiment of the invention, the lower portion 11 and the upper portion 12 of the footwear element 1 form a continuous envelope. This means that no passage remains for the intrusion of foreign bodies. This also means that the protection provided by the flexible rod 4 extends both at the lower portion 11 and at the upper portion 12.

En considérant plus précisément la figure 1, on note que l'élément chaussant 1 présente une ouverture de chaussage 25. Celle-ci 25 s'étend depuis l'extrémité supérieure 21 vers le semelage externe 3. Du côté de l'extrémité supérieure 21 l'ouverture 25 présente une subdivision supérieure 26 destinée à laisser passer le pied, et aussi à entourer le bas de jambe après chaussage. Au niveau du bas de jambe, de la cheville et du talon, entre l'extrémité supérieure 21 et le semelage externe 3, l'ouverture de chaussage 25 de la tige souple 4 présente une subdivision inférieure latérale 27 et une subdivision médiale 28, lesquelles autorisent une variation de dimension de l'ouverture et une variation du volume de chaussage. Bien entendu, les subdivisions supérieure 26 et inférieure latérale 27 se prolongent l'une l'autre, et les subdivisions supérieure 26 et inférieure médiale 28 se prolongent l'une l'autre. Cet agencement permet l'introduction de la chaussure 2 dans l'élément chaussant 1, ou son retrait. Par corollaire l'agencement ci-avant permet l'introduction ou le retrait du pied, en même temps que la chaussure. On précise au passage qu'il est possible de prévoir une alternative de construction pour laquelle l'ouverture de chaussage 25 présente la subdivision supérieure 26, ainsi qu'une subdivision inférieure arrière. Dans ce cas cette dernière s'étend au niveau du bas de jambe et du talon, entre l'extrémité supérieure 21 et l'extrémité arrière 5 au niveau du semelage externe 3. La subdivision supérieure 26 et la subdivision inférieure arrière se prolongent l'une l'autre.By considering more precisely the figure 1 it is noted that the footwear element 1 has a boot opening 25. This 25 extends from the upper end 21 to the outer sole 3. On the upper end 21 side the opening 25 has a subdivision upper 26 designed to let the foot, and also to surround the lower leg after footwear. At the level of the lower leg, the ankle and the heel, between the upper end 21 and the outer sole 3, the boot opening 25 of the flexible upper 4 has a lateral lower subdivision 27 and a medial subdivision 28, which allow a variation in size of the opening and a variation of the boot volume. Of course, the upper 26 and lower 27 lateral subdivisions extend one another, and the upper 26 and lower medial 28 subdivisions extend one another. This arrangement allows the introduction of the shoe 2 in the footwear element 1, or its withdrawal. By corollary the arrangement above allows the introduction or withdrawal of the foot, at the same time as the shoe. It is specified in passing that it is possible to provide a construction alternative for which the boot opening 25 has the upper subdivision 26, and a rear lower subdivision. In this case, the latter extends at the level of the lower leg and the heel, between the upper end 21 and the rear end 5 at the level of the outer sole 3. The upper subdivision 26 and the lower rear subdivision are prolonged. one another.

L'élément chaussant 1 comprend aussi des moyens de fermeture 29 de la subdivision inférieure latérale 27 de l'ouverture de chaussage 25, ainsi que des moyens de fermeture 30 de la subdivision inférieure médiale 28 de l'ouverture de chaussage 25. Cela maintient la tige 4 au contact de la chaussure 2 d'une part, et au contact de la cheville et du bas de jambe d'autre part.The footwear element 1 also comprises closure means 29 of the lower lateral subdivision 27 of the boot opening 25, as well as closing means 30 of the medial lower subdivision 28 of the boot opening 25. rod 4 in contact with the shoe 2 on the one hand, and in contact with the ankle and lower leg on the other hand.

De manière non limitative, les moyens de fermeture 29, 30 comprennent respectivement des glissières 31, 32. Ces dernières permettent une ouverture ou une fermeture rapide de la subdivision inférieure 27, ce qui fait gagner du temps pour chausser ou déchausser. Cependant d'autres structures de moyens de fermeture sont possibles, comme par exemple un dispositif à lacet, un dispositif à bandes complémentaires dont l'une est munie de boucles et l'autre de crochets, ou tout moyen équivalent.In a nonlimiting manner, the closure means 29, 30 respectively comprise slides 31, 32. These last allow a quick opening or closing of the lower subdivision 27, which saves time for shoeing or loosening. However, other structures of closure means are possible, such as a lace device, a device with complementary bands, one of which is provided with loops and the other of hooks, or any equivalent means.

Toujours selon la première forme de réalisation de l'invention, la disposition près de l'arrière de la tige des subdivisions 27, 28 facilite le chaussage de l'élément chaussant 1 par un pied déjà couvert de la chaussure. Un autre avantage est une meilleure résistance à la pénétration de corps étrangers, en particulier en milieu neigeux. En effet, parce que les subdivisions inférieures 27, 28 sont situées vers l'arrière, la face avant 33 de la tige 4 est continue depuis l'extrémité avant 6 jusqu'à l'extrémité supérieure 21. En d'autres termes, la face avant ne présente aucun passage. Or la marche se traduit par des avancées et des contacts de la tige 4 avec la neige du côté de cette face. Sa continuité de structure est un gage d'étanchéité et/ou de protection.Still according to the first embodiment of the invention, the arrangement near the rear of the stem of the subdivisions 27, 28 facilitates the donning of the footwear element 1 by a foot already covered with the shoe. Another advantage is better resistance to the penetration of foreign bodies, especially in snowy conditions. Indeed, because the lower subdivisions 27, 28 are located towards the rear, the front face 33 of the rod 4 is continuous from the front end 6 to the upper end 21. In other words, the front face has no passage. Now the march is translated by advances and contacts of the rod 4 with the snow on the side of this face. Its continuity of structure is a pledge of sealing and / or protection.

On peut dire en résumé que l'ouverture de chaussage 25 présente une subdivision supérieure 26 et au moins une subdivision inférieure 27, 28, la subdivision inférieure 27, 28 étant située dans une zone qui s'étend sur 50 % de la longueur de l'élément chaussant 1 depuis l'extrémité arrière 5.In summary, it can be said that the boot opening 25 has an upper subdivision 26 and at least one lower subdivision 27, 28, the lower subdivision 27, 28 being situated in an area which extends over 50% of the length of the footwear element 1 from the rear end 5.

Selon l'invention, l'élément chaussant 1 comprend un renfort amovible 34 qui présente l'aspect général d'une plaque, le renfort 34 s'étendant en longueur depuis une extrémité arrière 35 jusqu'à une extrémité avant 36, en largeur entre un bord latéral 37 et un bord médial 38, et en épaisseur entre une face d'appui 39 et une face d'accueil 40, le renfort 34 étant disposé en regard du semelage externe 3, le renfort 34 étant sensiblement indéformable en flexion longitudinale, selon un axe transversal.According to the invention, the footwear element 1 comprises a removable reinforcement 34 which has the general appearance of a plate, the reinforcement 34 extending in length from a rear end 35 to a front end 36, in width between a lateral edge 37 and a medial edge 38, and in thickness between a bearing face 39 and a receiving face 40, the reinforcement 34 being arranged facing the outer sole 3, the reinforcement 34 being substantially indeformable in longitudinal flexion, along a transverse axis.

Lorsque le renfort 34 est retiré de son emplacement fonctionnel, l'élément chaussant 1 présente une souplesse qui favorise un bon déroulement du pied. L'utilisateur est donc à même d'évoluer avec précision et dans de bonnes conditions de confort sur des terrains faciles, c'est-à-dire peu accidentés ou peu inclinés. A l'inverse, lorsque le renfort 34 est mis en place en regard du semelage externe 3, l'élément chaussant 1 présente une rigidité plus importante, au moins au niveau du semelage externe, ce qui permet des prises d'appuis sur un terrain très incliné, presque vertical ou vertical. Le renfort 34 permet de modifier la rigidité de l'élément chaussant 1 pour adapter celui-ci aux conditions d'utilisation souhaitées. La rigidité est accrue principalement au niveau du semelage externe, ce qui a pour effet de répartir les efforts liés aux appuis sur une grande étendue de l'élément chaussant, et donc sur une grande étendue du pied de l'utilisateur. La perception des appuis et des informations sensorielles par l'utilisateur est plus fiable, plus cohérente.When the reinforcement 34 is removed from its functional location, the footwear element 1 has a flexibility that promotes a smooth running of the foot. The user is therefore able to evolve accurately and in good conditions of comfort on easy terrain, that is to say, slightly uneven or slightly inclined. Conversely, when the reinforcement 34 is put in place opposite the outer soleing 3, the footwear element 1 has a greater rigidity, at least at the level of the outer sole, which allows taking support on a ground very inclined, almost vertical or vertical. The reinforcement 34 makes it possible to modify the rigidity of the footwear element 1 to adapt it to the desired conditions of use. The stiffness is increased mainly at the level of the outer sole, which has the effect of distributing the forces of support over a large extent of the footwear, and therefore over a large extent of the foot of the user. The perception of support and sensory information by the user is more reliable, more consistent.

En conséquence la précision des appuis ou, de façon plus large, la précision des transmissions d'informations sensorielles, est obtenue dans des environnements où le sol est très incliné, presque vertical ou vertical. Par exemple, dans le cas où l'élément chaussant est muni de pointes 9 frontales, l'utilisateur peut escalader des pentes très raides ou des parois en soulageant l'effort musculaire au niveau des mollets et des muscles des pieds. Le fait de rigidifier l'élément chaussant permet de réduire la fatigue liée à un effet de bras de levier, entre les pointes qui accrochent la glace à l'avant et le talon. De plus on observe une amélioration du confort de l'élément chaussant lors d'une utilisation dans des conditions difficiles. La fatigue de l'utilisateur est modérée, et les traumatismes sont absents ou très peu présents.As a result, the precision of the supports or, more generally, the precision of the sensory information transmissions, is obtained in environments where the ground is very inclined, almost vertical or vertical. For example, in the case where the footwear element is provided with frontal spikes, the user can climb steep slopes or walls by relieving muscular effort in the calves and muscles of the feet. The stiffening of the footwear reduces fatigue due to a lever effect, between the points that catch the ice in the front and the heel. In addition, there is an improvement in the comfort of the footwear element when used in difficult conditions. The fatigue of the user is moderate, and the traumas are absent or very little present.

Le renfort 34 est destiné à renforcer une partie substantielle de l'élément chaussant 1, c'est-à-dire ici une partie substantielle du semelage externe 3. A cet effet, le renfort 34 présente une longueur comprise entre 80 et 100 % de la longueur du semelage externe 3, et une largeur comprise entre 80 et 100 % de la largeur du semelage externe 3. De manière plus précise, dans le cadre de la première forme de réalisation de l'invention, le renfort 34 présente une longueur comprise entre 90 et 100 % de la longueur du semelage externe, et une largeur comprise entre 90 et 100 % de la largeur du semelage externe. Cela permet de transmettre les efforts liés aux appuis, et en fait l'ensemble des informations sensorielles, sur la totalité ou la quasi-totalité du pied.The reinforcement 34 is intended to reinforce a substantial part of the footwear element 1, that is to say here a substantial part of the outer sole 3. For this purpose, the reinforcement 34 has a length of between 80 and 100% of the length of the outer sole 3, and a width between 80 and 100% of the width of the outer sole 3. More specifically, in the context of the first embodiment of the invention, the reinforcement 34 has a length of between 90 and 100% of the length of the outer sole, and a width of between 90 and 100% of the width of the outer sole. This makes it possible to transmit the efforts related to the supports, and in fact all the sensory information, on all or almost all of the foot.

Toujours en ce qui concerne l'aspect dimensionnel, l'épaisseur du renfort 34 est comprise entre 1 et 6 mm. Ces valeurs ont donné de bons résultats, sachant qu'elles varient en fonction du ou des matériaux choisis, lesquels vont être présentés plus loin. En tout état de cause, il faut adopter un compromis entre le poids du renfort 34 et sa résistance en flexion. Si l'épaisseur est importante la résistance en flexion est importante, mais le poids est lui aussi un peu plus important. Cela revient à améliorer significativement la transmission des informations sensorielles, tout en alourdissant légèrement l'élément chaussant. A l'inverse, si l'épaisseur est moins importante la résistance en flexion est moins importante, mais le poids est lui aussi un peu moins important. Dans ce cas la transmission des informations sensorielles est améliorée dans une proportion plus mesurée, mais l'élément chaussant reste plus léger. Au final tout est affaire de compromis, et l'utilisateur peut en fait choisir le renfort qui lui convient le mieux, parmi plusieurs renforts aux propriétés différentes, pour ajuster le comportement de l'élément chaussant à ses besoins.Still with regard to the dimensional aspect, the thickness of the reinforcement 34 is between 1 and 6 mm. These values have given good results, knowing that they vary according to the chosen material or materials, which will be presented later. In any case, it is necessary to adopt a compromise between the weight of the reinforcement 34 and its flexural strength. If the thickness is important the bending strength is important, but the weight is also a little more important. This amounts to significantly improving the transmission of sensory information, while slightly weighting the footwear element. Conversely, if the thickness is less important the flexural strength is less important, but the weight is also a little less important. In this case the transmission of sensory information is improved in a more measured proportion, but the footwear element remains lighter. In the end everything is a compromise, and the user can actually choose the reinforcement that suits him best, among several reinforcements with different properties, to adjust the behavior of the footwear element to his needs.

Selon la première forme de réalisation toujours, le renfort 34 est disposé à l'intérieur du volume de chaussage. Celui-ci est délimité par le semelage externe et la tige. En pratique le renfort est inséré dans l'élément chaussant pour prendre place en regard du semelage externe 3, par exemple en étant disposé directement au contact de ce dernier. Dans ce cas, la face d'appui 39 du renfort 34 vient directement au contact du semelage externe 3. Il s'agit d'une mise en oeuvre très simple, car il est facile de placer le renfort dans l'élément chaussant ou de le retirer.According to the first embodiment still, the reinforcement 34 is disposed inside the boot volume. This is delimited by the outer sole and the stem. In practice reinforcement is inserted into the footwear to take place opposite the outer sole 3, for example by being placed directly in contact with the latter. In this case, the bearing face 39 of the reinforcement 34 comes directly into contact with the outer sole 3. This is a very simple implementation, because it is easy to place the reinforcement in the footwear element or To take it out.

En ce qui concerne sa constitution, le renfort 34 comprend une matière synthétique. Le renfort est par exemple constitué d'une ou de plusieurs couches de matières telles que du polyamide, du polyuréthane, du polyéthylène, ou tout matériau similaire. Le renfort 34 peut aussi comprendre une ou plusieurs couches de fibres ou de portions de fibres, noyées dans des matières thermoformables ou thermodurcissables, telles que des résines ou toute matière plastique appropriée. Les fibres sont agencées de toutes les façons possibles, par exemple en étant tissées.As regards its constitution, the reinforcement 34 comprises a synthetic material. The reinforcement is for example made of one or more layers of materials such as polyamide, polyurethane, polyethylene, or any similar material. The reinforcement 34 may also comprise one or more layers of fibers or portions of fibers embedded in thermoformable or thermosetting materials, such as resins or any suitable plastics material. The fibers are arranged in all possible ways, for example by being woven.

Selon la première forme de réalisation de l'invention toujours, l'élément chaussant comprend un dispositif de serrage 41 solidarisé au renfort 34, le dispositif de serrage 41 étant prévu pour serrer une chaussure 2 et/ou un pied hébergés dans le volume chaussant. Il s'agit de faire en sorte que le pied soit immobilisé par rapport au renfort 34, pour une meilleure perception des informations sensorielles, et une meilleure transmission des efforts qui au final vont permettre un meilleur accrochage des pointes dans la neige ou dans la glace, particulièrement si l'utilisateur évolue dans une paroi très raide ou verticale.According to the first embodiment of the invention always, the footwear element comprises a clamping device 41 secured to the reinforcement 34, the clamping device 41 being provided for tightening a shoe 2 and / or a foot accommodated in the footwear volume. This is to ensure that the foot is immobilized relative to the reinforcement 34, for a better perception of sensory information, and a better transmission of efforts which ultimately will allow better attachment of the tips in the snow or in the ice , especially if the user is moving in a very steep or vertical wall.

De manière non limitative, le dispositif de serrage 41 est constitué de sangles 42, 43 ou de portions de sangles qui peuvent être maintenue en situation de serrage, par exemple au moyen d'un dispositif de blocage 44.In a nonlimiting manner, the clamping device 41 consists of straps 42, 43 or portions of straps that can be held in a clamping position, for example by means of a locking device 44.

Le dispositif de serrage 41 est situé au niveau d'une zone du renfort 34 qui s'étend depuis l'extrémité arrière 35 vers l'extrémité avant 36, sur une distance comprise entre 10 et 45 % de la longueur du renfort 34. Cela permet de plaquer le pied de l'utilisateur sur le talon de l'élément chaussant 1.The clamping device 41 is located at a zone of the reinforcement 34 which extends from the rear end 35 towards the front end 36, over a distance of between 10 and 45% of the length of the reinforcement 34. allows to press the user's foot on the heel of the footwear element 1.

La deuxième forme de réalisation est présentée ci-après à l'aide de la figure 3. Pour des raisons de commodité, les éléments communs avec la première forme sont désignés par les mêmes références.The second embodiment is presented below using the figure 3 . For the sake of convenience, the elements common with the first form are designated by the same references.

Pour la deuxième forme, on retrouve un élément chaussant 1 avec un semelage externe 3 et une tige souple 4, ainsi qu'une chaussure 2 et un renfort amovible 54. A nouveau le renfort 54 présente l'aspect général d'une plaque, le renfort 54 s'étendant en longueur depuis une extrémité arrière 55 jusqu'à une extrémité avant 56, en largeur entre un bord latéral 57 et un bord médial 58, et en épaisseur entre une face d'appui 59 et une face d'accueil 60, le renfort 54 étant disposé en regard du semelage externe 3, le renfort 54 étant sensiblement indéformable en flexion longitudinale, selon un axe transversal.For the second form, there is a footwear element 1 with an outer sole 3 and a flexible upper 4, and a shoe 2 and a removable reinforcement 54. Again the reinforcement 54 has the general appearance of a plate, the reinforcement 54 extending in length from a rear end 55 to a front end 56, in width between a lateral edge 57 and a medial edge 58, and in thickness between a bearing face 59 and a receiving face 60 , the reinforcement 54 being arranged facing the outer sole 3, the reinforcement 54 being substantially indeformable in longitudinal flexion, along a transverse axis.

Ce qui est spécifique à la deuxième forme, c'est que l'élément chaussant 1 comprend un dispositif de serrage 61 solidarisé au semelage externe 3 et/ou à la tige 4, le dispositif de serrage 61 étant prévu pour serrer une chaussure 2 et/ou un pied hébergés dans le volume chaussant. Là encore, il s'agit de faire en sorte que le pied soit immobilisé par rapport au renfort 54, pour une meilleure perception des informations sensorielles, et une meilleure transmission des efforts qui au final vont permettre un meilleur accrochage des pointes dans la neige ou dans la glace, particulièrement si l'utilisateur évolue dans une paroi très raide ou verticale.What is specific to the second form is that the footwear element 1 comprises a tightening device 61 secured to the outer sole assembly 3 and / or to the upper 4, the tightening device 61 being provided for tightening a boot 2 and / or a foot housed in the footwear volume. Again, this is to ensure that the foot is immobilized relative to the reinforcement 54, for a better perception of sensory information, and a better transmission of efforts that ultimately will allow better attachment of the tips in the snow or ice, especially if the user is moving in a very steep wall or vertical.

De manière non limitative, le dispositif de serrage 61 est constitué de sangles 62, 63 ou de portions de sangles qui peuvent être maintenue en situation de serrage, par exemple au moyen d'un dispositif de blocage 64.In a nonlimiting manner, the clamping device 61 consists of straps 62, 63 or portions of straps that can be held in a clamping position, for example by means of a locking device 64.

Le dispositif de serrage 61 est situé au niveau d'une zone du renfort 54 qui s'étend depuis l'extrémité arrière 55 vers l'extrémité avant 56, sur une distance comprise entre 10 et 45 % de la longueur du renfort 54. Cela permet de plaquer le pied de l'utilisateur sur le talon de l'élément chaussant 1.The clamping device 61 is located at a zone of the reinforcement 54 which extends from the rear end 55 towards the front end 56, over a distance of between 10 and 45% of the length of the reinforcement 54. allows to press the user's foot on the heel of the footwear element 1.

Bien entendu l'invention n'est pas limitée aux formes de réalisation ci-avant décrites, et comprend tous les équivalents techniques pouvant entrer dans la portée des revendications qui vont suivre.Naturally, the invention is not limited to the embodiments described above, and includes all technical equivalents that fall within the scope of the claims that follow.

En particulier, l'invention couvre un ensemble comprenant une chaussure à tige basse 2 et un élément chaussant 1.In particular, the invention covers an assembly comprising a low-stemmed shoe 2 and a footwear element 1.

En complément on précise ce qui est entendu par souplesse au niveau du semelage 3. Celui-ci est souple, dans le sens où il permet une flexion ou un déroulement du pied pendant la marche. Le semelage externe 3 comprend par exemple une ou plusieurs couches de matière synthétique. De manière non limitative, il peut être prévu une couche de matière telle qu'un polyuréthane, dont l'épaisseur est comprise entre 3 et 7 mm.In addition we specify what is meant by flexibility at the level of the sole 3. It is flexible, in the sense that it allows a flexion or unwinding of the foot during walking. The outer soleing 3 comprises for example one or more layers of synthetic material. Without limitation, it may be provided a layer of material such as a polyurethane, whose thickness is between 3 and 7 mm.

On précise encore que, de manière non limitative, l'élément chaussant 1 comprend un crampon avant 65 et un crampon arrière 66. Il peut alternativement être prévu seulement un crampon avant, ou seulement un crampon arrière, mais l'emploi de deux crampons améliore l'aptitude de l'élément chaussant à coopérer avec la neige ou la glace.It is further specified that, without limitation, the footwear element 1 comprises a spike before 65 and a rear spike 66. It may alternatively be provided only a front spike, or only a rear spike, but the use of two spikes improves the ability of the footwear to cooperate with snow or ice.

Un crampon comprend par exemple un corps 67 qui porte les pointes 9, comme on peut le voir sur la figure 2.A crampon comprises for example a body 67 which carries the tips 9, as can be seen on the figure 2 .

Le renfort peut présenter une géométrie en trois dimensions, toujours avec l'aspect général d'une plaque, mais en étant bordé d'une paroi, discontinue ou continue, par exemple périphérique, pour un meilleur calage transversal de la chaussure logée dans l'élément chaussant.The reinforcement may have a geometry in three dimensions, always with the general appearance of a plate, but being bordered by a wall, discontinuous or continuous, for example peripheral, for a better transverse wedging of the shoe housed in the footwear element.

Par ailleurs, on a vu que le dispositif de serrage 41, 61 est interne à l'élément chaussant. On peut alternativement prévoir des cas pour lesquels le dispositif de serrage est externe à l'élément chaussant.Moreover, we have seen that the clamping device 41, 61 is internal to the footwear element. We can alternatively provide cases for which the clamping device is external to the footwear element.

Claims (10)

Elément chaussant (1) comprenant un semelage externe souple (3) et une tige souple (4), lesquels délimitent un volume de chaussage, l'élément chaussant (1) s'étendant en longueur depuis une extrémité arrière (5) jusqu'à une extrémité avant (6), en largeur entre une partie latérale (7) et une partie médiale (8), et en hauteur depuis une face externe (10) du semelage externe (3) jusqu'à une extrémité supérieure (21), l'élément chaussant présentant une ouverture de chaussage (25), l'élément chaussant comprenant des pointes (9) qui font saillie au niveau de la face externe (10) du semelage externe (3), caractérisé par le fait qu'il comprend un renfort amovible (34, 54) qui présente l'aspect général d'une plaque, le renfort (34, 54) s'étendant en longueur depuis une extrémité arrière (35, 55) jusqu'à une extrémité avant (36, 56), en largeur entre un bord latéral (37, 57) et un bord médial (38, 58), et en épaisseur entre une face d'appui (39, 59) et une face d'accueil (40, 60), le renfort (34, 54) étant disposé en regard du semelage externe (3), le renfort (34, 54) étant sensiblement indéformable en flexion longitudinale, selon un axe transversal.Footwear element (1) comprising a flexible outer sole (3) and a flexible upper (4), which define a boot volume, the footwear element (1) extending in length from a rear end (5) to a front end (6), in width between a lateral part (7) and a medial part (8), and in height from an outer face (10) of the outer sole (3) to an upper end (21), the footwear element having a boot opening (25), the footwear element having spikes (9) projecting from the outer face (10) of the outer sole (3), characterized in that it comprises a removable reinforcement (34, 54) which has the general appearance of a plate, the reinforcement (34, 54) extending in length from a rear end (35, 55) to a front end (36, 56); ), in width between a lateral edge (37, 57) and a medial edge (38, 58), and in thickness between a bearing face (39, 59) and a receiving face (40, 60), the reinforcement (34, 54) being arranged facing the outer sole (3), the reinforcement (34, 54) being substantially indeformable in longitudinal flexion along a transverse axis. Elément chaussant (1) selon la revendication 1, caractérisé par le fait que le renfort (34, 54) présente une longueur comprise entre 80 et 100 % de la longueur du semelage externe (3), et une largeur comprise entre 80 et 100 % de la largeur du semelage externe (3).Footwear (1) according to claim 1, characterized in that the reinforcement (34, 54) has a length of between 80 and 100% of the length of the outer sole (3), and a width of between 80 and 100% the width of the outer sole (3). Elément chaussant (1) selon la revendication 1 ou 2, caractérisé par le fait que l'épaisseur du renfort (34, 54) est comprise entre 1 et 6 mm.Footwear element (1) according to claim 1 or 2, characterized in that the thickness of the reinforcement (34, 54) is between 1 and 6 mm. Elément chaussant (1) selon l'une des revendications 1 à 3, caractérisé par le fait que le renfort (34, 54) est disposé à l'intérieur du volume de chaussage.Footwear (1) according to one of claims 1 to 3, characterized in that the reinforcement (34, 54) is disposed within the footwear volume. Elément chaussant (1) selon l'une des revendications 1 à 4, caractérisé par le fait que le renfort (34, 54) comprend une matière synthétique.Footwear element (1) according to one of claims 1 to 4, characterized in that the reinforcement (34, 54) comprises a synthetic material. Elément chaussant (1) selon l'une des revendications 1 à 5, caractérisé par le fait qu'il comprend un dispositif de serrage (41) solidarisé au renfort (34), le dispositif de serrage (41) étant étant prévu pour serrer une chaussure (2) et/ou un pied hébergés dans le volume chaussant.Footwear element (1) according to one of claims 1 to 5, characterized in that it comprises a clamping device (41) secured to the reinforcement (34), the clamping device (41) being provided to tighten a shoe (2) and / or a foot housed in the footwear volume. Elément chaussant (1) selon la revendication 6, caractérisé par le fait que le dispositif de serrage (41) est situé au niveau d'une zone du renfort (34) qui s'étend depuis l'extrémité arrière (35) vers l'extrémité avant (36), sur une distance comprise entre 10 et 45 % de la longueur du renfort (34).Footwear element (1) according to claim 6, characterized in that the clamping device (41) is located at a reinforcement zone (34) extending from the rear end (35) towards the front end (36) over a distance of between 10 and 45% of the length of the reinforcement (34). Elément chaussant (1) selon l'une des revendications 1 à 5, caractérisé par le fait qu'il comprend un dispositif de serrage (61) solidarisé au semelage externe (3) et/ou à la tige (4), le dispositif de serrage (61) étant prévu pour serrer une chaussure (2) et/ou un pied hébergés dans le volume chaussant.Footwear element (1) according to one of claims 1 to 5, characterized in that it comprises a clamping device (61) secured to the outer sole (3) and / or the rod (4), the tightening (61) being provided for tightening a shoe (2) and / or a foot accommodated in the footwear volume. Elément chaussant (1) selon la revendication 8, caractérisé par le fait que le dispositif de serrage (61) est situé au niveau d'une zone du renfort (54) qui s'étend depuis l'extrémité arrière (55) vers l'extrémité avant (56), sur une distance comprise entre 10 et 45 % de la longueur du renfort.Footwear (1) according to claim 8, characterized in that the clamping device (61) is located at a zone of the reinforcement (54) which extends from the rear end (55) towards the front end (56), over a distance of between 10 and 45% of the length of the reinforcement. Elément chaussant (1) selon l'une des revendications 1 à 9, caractérisé par le fait qu'il comprend un crampon avant (65) et un crampon arrière (66).Footwear element (1) according to one of claims 1 to 9, characterized in that it comprises a front spike (65) and a rear spike (66).
EP16000006.3A 2015-01-27 2016-01-05 Footwear element Withdrawn EP3050452A1 (en)

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USD1008611S1 (en) 2022-03-23 2023-12-26 Mountain Origins Design LLC Footwear
USD1007825S1 (en) 2022-03-23 2023-12-19 Mountain Origins Design LLC Footwear
USD1007110S1 (en) 2022-03-23 2023-12-12 Mountain Origins Design LLC Footwear
USD1007826S1 (en) 2022-03-23 2023-12-19 Mountain Origins Design LLC Footwear

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EP2647304A1 (en) * 2012-04-06 2013-10-09 Salomon S.A.S. Footwear element

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FR3031885B1 (en) 2017-07-28
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CA2917429A1 (en) 2016-07-27

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