WALKING SOLES FOR SHOES WITH ANTI-SLIP STABILITY FEATURES

Abstract

The invention relates to a ground contact sole (10) for a shoe (1), comprising an underfoot (110) and a side surface (120), wherein this underfoot (110) comprises the heel, toe and midfoot regions, this midfoot region comprises an inner and outer receiving surface (111-E), this inner receiving surface extends protruding under the ground contact sole (10) along the inner edge of the side surface (120), this outer receiving surface (111-E) extends protruding under the ground contact sole (10) along the outer edge of the side surface (120), the inner receiving surface is textured to receive and hold a stable inner compensating insole (30-I) and the outer receiving surface (111-E) is textured to receive and hold a stable outer compensating insole (30-E).

Description

Walking sole for shoe with skate stabilization

[0001] The present invention relates to the field of footwear and more particularly concerns a walking sole configured to receive at least one stabilizing compensating pad, a shoe comprising such a walking sole and such a stabilizing compensating pad.

[0002] Gait and balance disorders are common in older people and are linked to the aging of gait and balance effectors associated with certain diseases and their treatments. The combined effect of aging and the onset of various age-related diseases helps explain the balance and gait disorders frequently encountered in older people. Indeed, sarcopenia and the change in muscle composition (adipocytes > myocytes) favored by aging are harmful to their function, especially when associated with a sedentary lifestyle and malnutrition. Osteoarthritis, osteoporosis, and a sedentary lifestyle affecting the osteoarticular system will also impact balance.

[0003] The impact of these disorders on the elderly is twofold. On the one hand, the loss of autonomy is directly linked to these disorders, a significant walking disorder can partially or totally compromise the autonomy of the elderly person, whether for going out and shopping or for carrying out daily activities. On the other hand, they are the cause of falls, the seriousness of which is known in the elderly. These have immediate consequences with hospitalization, surgery and secondary consequences with a loss of autonomy, the need to go to a retirement home, etc. The causes of these walking disorders are very varied and the means to correct these disorders are generally orthopedic shoes, orthoses, simple canes, sticks, tripod canes, walkers, armchairs, etc.

[0004] However, orthopedic shoes provide only very limited improvement and other solutions, particularly orthoses, simple canes, sticks, tripod canes, walkers, armchairs, etc., limit the autonomy of elderly people.

[0005] In order to improve the stability of the wearer of a shoe, several solutions have been devised. For example, EP 0 811 330 describes a shoe particularly suitable for running which comprises stabilizing means. The sole of the shoe comprises a lower sole, a midsole softer than the lower sole, a heel counter, an inner surface and an outer surface which comprises a concavely rounded portion extending downwardly along one side of the sole of the shoe, said concavely rounded portion comprising a portion formed by the midsole which extends below an extreme side area of ​​the side of the sole so that the rounded portion thereof deforms to flatten easily under the load of a user's body weight during a sideways movement of the sole in order to provide better lateral stability.Although this type of sole improves the cushioning of the foot during sports, it does not improve the stability of the ankle or the midfoot in a satisfactory manner.

[0006] Another solution disclosed in WO2013 / 095709 describes a shoe that has a forefoot portion, a midfoot portion, and a heel portion and includes a sole having a base layer, a heel pedestal extending from the base layer, a lateral stabilizing pedestal extending from the base layer and positioned at least partially beneath the cuboid bone, and a medial stabilizing pedestal extending from the base layer and positioned at least partially beneath the navicular bone. When moving on two feet, the weight of a person wearing the shoe is supported on at least the heel pedestal, the lateral stabilizing pedestal, and the medial stabilizing pedestal, thereby transferring the person's weight from the heel pedestal to the lateral stabilizing pedestal and the medial stabilizing pedestal.The heel pedestal, stabilizer pedestal, and medial stabilizer pedestal comprise an outsole and a compressible base layer between the outsole and the wearer's foot. Again, while this type of sole improves heel cushioning, it does not adequately improve ankle or midfoot stability due to the heel pedestal.

[0007] In order to overcome these drawbacks, and to provide stability not only when walking but also in a static standing position, the applicant has devised a shoe sole comprising specific stabilization means in French patent FR3069419B1. In this solution, the sole comprises at least one lower sole consisting of a convex toe, a convex toe cap, a so-called inner surface extending from the toe cap to the end of the sole on the medial face and comprising a concave or rectilinear part at the midfoot, and a so-called outer surface extending from the toe cap to the end of the sole on the lateral face and comprising a concave part at the midfoot.Furthermore, said sole comprises at least two stabilizing elements, medial and lateral, extending from the inner surface at the midfoot and having a concave edge, and a second stabilizing element called lateral extending from the outer surface at the midfoot and having a concave edge, the lower face of the medial stabilizing element and the lateral stabilizing element extending between 0.5 and 1.5 mm below the lower face of the lower sole when the latter is in a straight and unstressed state.

[0008] In an alternative embodiment, the medial zone of the sole has a hollow in which a U-shaped single-piece part can be positioned, comprising on its ground contact face a medial stabilizing element and a lateral stabilizing element. However, on the one hand, such a U-shaped part affects the flexibility of the sole during the gait and, on the other hand, it does not provide stability adapted to each individual, i.e. taking into account the particular deficiencies of each person.

[0009] None of the identified prior art shoe solutions can correct specific postural defects of the wearer of said shoe, this being achieved in a conventional manner using orthopedic soles at significant cost and complexity.

[0010] There is therefore a need for a simple and effective solution to at least partially overcome these drawbacks.

[0011] For this purpose, the invention firstly relates to a walking sole for a shoe, said walking sole comprising a lower surface and a lateral surface, said lower surface comprising a heel zone, a toe zone and a medial zone located between said heel zone and said toe zone, said medial zone comprising an internal receiving surface and an external receiving surface, said internal receiving surface extending in relief under the walking sole along the internal edge of the lateral surface, said external receiving surface extending in relief under the walking sole along the external edge of the lateral surface, the walking sole being remarkable in that the internal receiving surface is configured to receive and hold an internal stabilizing compensating pad and in that the external receiving surface is configured to receive and hold an external stabilizing compensating pad.

[0012] The term "outsole" means the outermost part that provides the shoe with the necessary traction and protection from the ground surfaces with which it is in contact, possibly multi-layered (ISO 20345:2021(en) - Personal protective equipment - Safety footwear).

[0013] The sole according to the invention makes it possible to correct specific postural defects such as pronation or supination using stabilizing compensating pads fixed along the inner edge and / or the outer edge of the walking sole while ensuring the stability of the wearer of the shoe. In addition, depending on the number and thickness of each pad, the sole according to the invention makes it possible to correct postural defects of different severity or importance. The sole according to the invention makes it possible to compensate for the posture of the wearer of the shoes between the ankle joint and the midfoot, i.e. in line with the center of gravity, thus improving the stability of the ankle and the midfoot.

[0014] Preferably, the walking sole, in particular the landing surfaces, are made of a semi-rigid plastic material.

[0015] Preferably, the peripheral edge of each receiving surface is angular (i.e. not rounded), preferably with an angle of the order of 90°.

[0016] In one embodiment, each landing surface has an angular sector shape to improve support and increase stability.

[0017] According to one aspect of the invention, the internal receiving surface comprises at least one attachment portion of an internal stabilizing compensating pad and the external receiving surface comprises at least one attachment portion of an external stabilizing compensating pad.

[0018] The fixing portion may, for example, extend over the entire periphery of the receiving surface or, for example, along opposite sides to sufficiently fix the pad.

[0019] In one embodiment, the fixing portion corresponds to the surface which is intended to come into contact with the ground and which is configured to receive an adhesive element, for example of the glue type, self-adhesive element or strip of self-gripping material.

[0020] Alternatively or additionally, the fixing portion comprises one or more grooves configured to receive one or more complementary ribs.

[0021] Alternatively or additionally, the fixing portion comprises one or more ribs configured to receive one or more complementary grooves.

[0022] The section of the groove(s)-rib(s) connection(s) may, for example, take the form of a dovetail, the rib(s) clipping into the groove(s) by deformation and force fitting, the fixing members of the pad being deformable.

[0023] Advantageously, the internal receiving surface and the external receiving surface are identical in shape and dimensions so that the same stabilizing compensating pad can be mounted on both the internal receiving surface and the external receiving surface indifferently. In other words, the same model of stabilizing compensating pad can be used to compensate the sole internally or externally, which makes the use of the shoe easier.

[0024] Advantageously, the internal receiving surface and the external receiving surface are symmetrical, i.e. placed symmetrically, relative to the longitudinal axis of the walking sole in order to further improve the stability of the foot.

[0025] Preferably, the inner receiving surface and the outer receiving surface each have a convex outer edge.

[0026] The invention also relates to a shoe comprising a walking sole as presented above and an upper fixed to said walking sole.

[0027] The term "upper" refers to the part or parts of the shoe that cover the toes, the top of the foot, the sides of the foot, and optionally the back of the heel. The upper is attached, for example, by gluing or sewing or by sewing and gluing to the sole of the shoe (ISO 20345:2021(en) - Personal protective equipment - Safety footwear).

[0028] Advantageously, the shoe further comprises an internal stabilizing compensating pad fixed to the internal receiving surface and / or an external stabilizing compensating pad fixed to the external receiving surface.

[0029] Preferably, the stabilizing compensating pad or pads protrude at least 0.5 mm below the lower surface of the walking sole when the latter is in a straight and unstressed state.

[0030] The same shoe may include an internal stabilizing compensating pad and an external stabilizing compensating pad that are identical or different, in particular in terms of shape or dimensions, in particular thickness, in order to compensate for specific postural defects such as, for example, a pronating tendency or a supinating tendency of the foot in an adapted manner or even a short leg, while ensuring the stability of the wearer of the shoe. Two shoes of the same pair may include stabilizing compensating pads of different thickness to compensate for specific defects specific to the wearer of said shoes.

[0031] In one embodiment, the walking sole of the shoe comprises a first internal lateral stabilizing element, the ground contact area of ​​which comprises the internal landing surface, and a second external lateral stabilizing element, the ground contact area of ​​which comprises the external landing surface, the internal stabilizing compensating pad being mounted on said internal landing surface and the external stabilizing compensating pad being mounted on said external landing surface, the internal stabilizing compensating pad and the external stabilizing compensating pad protruding at least 0.5 mm below the lower surface of the walking sole when the latter is in a straight and unstressed state.

[0032] Advantageously, the internal stabilizing compensating pad is fixed to the internal receiving surface by complementary fixing members and / or the external stabilizing compensating pad is fixed to the external receiving surface by complementary fixing members.

[0033] In one embodiment, the complementary fixing members are of the clip-on type.

[0034] In another embodiment, the complementary fixing members are of the interlocking type.

[0035] In another embodiment, the internal stabilizing compensator pad is secured to the internal receiving surface via an adhesive member and / or the external stabilizing compensator pad is mounted to the external receiving surface via an adhesive member.

[0036] Preferably, the adhesive element is an adhesive, a self-adhesive material or a strip of hook-and-loop material.

[0037] The invention also relates to a stabilizing compensating pad for a shoe sole, said sole comprising a lower surface and a lateral surface, said lower surface comprising a heel area, a medial area and a toe area, said medial area comprising at least one receiving surface, the stabilizing compensating pad comprising a compensating portion, said compensating portion comprising an outer surface configured to come into contact with the ground and an inner surface comprising at least one fixing member configured to fix the stabilizing compensating pad on said at least one receiving surface by interlocking.

[0038] The stabilizing compensating pad according to the invention makes it possible to correct specific postural defects such as pronation or supination depending on where it is fixed under the sole while ensuring the stability of the wearer of the shoe. In addition, depending on its thickness, the stabilizing compensating pad according to the invention makes it possible to correct postural defects of different severities or importance. The stabilizing compensating pad according to the invention makes it possible to compensate for the posture of the wearer of the shoes. Extending from the ankle joint to the midfoot, i.e. directly above the center of gravity, it thus makes it possible to improve the stability of the ankle and the midfoot.

[0039] According to one aspect of the invention, the compensation portion comprises an outer edge, intended to be oriented towards the outside of the walking sole, and an inner edge, intended to be oriented towards the inside of the walking sole.

[0040] Advantageously, the outer edge of the compensation portion has a convex shape making it possible to increase the support surface of the shoe towards the outside and therefore the stability of the shoe and its wearer in an effective manner.

[0041] Preferably, the inner edge of the compensation portion has a concave shape making it possible to increase the volume between the receiving surfaces and between the stabilizing compensating pads in order to better absorb shocks and evacuate liquid (for example water) or semi-solid (for example mud) or solid (for example gravel) materials.

[0042] The stabilizing compensating pad may be an internal stabilizing compensating pad configured to attach to a receiving surface located on the inner side of the middle zone or an external stabilizing compensating pad configured to attach to a receiving surface located on the outer side of the middle zone.

[0043] In one embodiment, the compensation portion extends along a plane, parallel to the landing surface and to the ground when the shoe is placed on the ground in the use position and without applied mechanical stress or applied force.

[0044] For example, the thickness of the compensation portion is between 0.5 and 10 mm to compensate for the majority of postural defects of the foot depending on the nature of the receiving surface of the shoe.

[0045] In one embodiment, the inner surface of the compensation portion is planar.

[0046] Alternatively, the inner surface may be configured to conform to reliefs of the receiving surface to allow proper positioning of the stabilizing compensator pad on said receiving surface.

[0047] Preferably, the outer surface of the compensation wall comprises a multi-directional anti-slip coating.

[0048] In one embodiment, the at least one fastener includes at least one flange extending at least partially around the interior surface.

[0049] In one embodiment, the compensation portion comprises a single fastening member consisting of a flange.

[0050] Preferably, the rim extends over at least three sides of the interior surface.

[0051] In one embodiment, the rim extends around all four sides of the interior surface.

[0052] In one embodiment, the at least one fixing member comprises at least one stud.

[0053] In one embodiment, the stud has a cylindrical shape with a circular cross-section.

[0054] In another embodiment, the stud has a tongue or rib or bead shape or any other protuberance shape suitable for allowing a connection by interlocking or fitting.

[0055] In one embodiment, the at least one fixing member comprises two studs.

[0056] In one embodiment, the at least one fastener comprises at least one flange and at least one stud.

[0057] In one embodiment, the interior surface of the compensation portion comprises at least one adhesive element.

[0058] The at least one adhesive element may be protected by a removable or peelable protective layer, for example made of a plastic material. The protective layer allows the stabilizing compensating pad to be transported without the risk of it sticking to an external object. The protective layer is removed just before the stabilizing compensating pad is mounted on the receiving surface.

[0059] Advantageously, the at least one adhesive element is distributed over the entirety of said interior surface.

[0060] Preferably, the inner surface of the compensation portion comprises a single adhesive element.

[0061] Advantageously, the stabilizing compensating pad comprises a stabilizing portion extending from the outer edge of the compensating portion and being configured to conform to the lateral surface of the walking sole.

[0062] The term "outer edge" means the edge of the compensation portion which is intended to be placed on the side of the lateral surface of the walking sole.

[0063] The stabilizing portion comprises an outer surface and an inner surface, said inner surface being configured to contact the lateral surface of the walking sole.

[0064] Advantageously, the stabilizing portion may comprise an adhesive element on its inner surface in order to fix the stabilizing compensating pad securely on said lateral surface.

[0065] Alternatively or additionally, the stabilizing portion may comprise at least one interlocking element configured to interlock with a complementary portion of the lateral surface of the walking sole.

[0066] Preferably, the outer edge of the compensation portion has a convex shape.

[0067] More preferably, the compensation portion and the stabilization portion are made from the same material.

[0068] In one embodiment, the stabilizing compensator pad is a single piece.

[0069] Preferably, when the stabilizing compensating pad is attached to a receiving surface of the sole, the outer surface of the compensating portion projects at least 0.5 mm below the lower surface of the walking sole when the latter is in a straight and unstressed state.

[0070] Other characteristics and advantages of the invention will become apparent from reading the description which follows. This description is purely illustrative and must be read in conjunction with the appended drawings in which:

[0071] This is a side view of an example of a shoe comprising two receiving surfaces for two stabilizing compensating pads according to the invention.

[0072] Diagrammatically illustrates an embodiment of the walking sole according to the invention in a view from below, said walking sole being that of the shoe of the.

[0073] Diagrammatically illustrates an embodiment of the shoe according to the invention in which the visible stabilizing compensating pad does not include a stabilizing portion.

[0074] Diagrammatically illustrates an embodiment of the shoe according to the invention in which the visible stabilizing compensating pad comprises a stabilizing portion.

[0075] Illustrates the walking sole of the with an internal stabilizing compensating pad and an external stabilizing compensating pad mounted on the internal landing surface and the external landing surface respectively.

[0076] Diagrammatically illustrates an embodiment of the stabilizing compensating pad according to the invention with a peripheral rim and without a stabilizing portion.

[0077] Diagrammatically illustrates an embodiment of the stabilizing compensating pad according to the invention with a peripheral rim and a stabilizing portion.

[0078] Diagrammatically illustrates an embodiment of the stabilizing compensating pad according to the invention without a peripheral rim and stabilizing portion and comprising two interlocking studs.

[0079] Schematically illustrates an embodiment of the stabilizing compensating pad according to the invention with a peripheral rim, a stabilizing portion, an adhesive element and a protective layer.

[0080] Diagrammatically illustrates the installation of an example of a stabilizing compensating pad according to the invention in side view.

[0081] Schematically illustrates the installation of an example of a stabilizing compensating pad on the corresponding receiving surface of the walking sole.

[0082] Schematically illustrates the installation of another example of a stabilizing compensating pad on the corresponding receiving surface of the walking sole.

[0083] Schematically illustrates the installation of another example of a stabilizing compensating pad on the corresponding receiving surface of the walking sole.

[0084] Schematically illustrates the shoe in the example without a stabilizing compensating pad.

[0085] Schematically illustrates the shoe in the example of the, the stabilizing compensating pad being fixed on the sole.

[0086] Schematically illustrates the assembly of two stabilizing compensating pads according to the example of figures 13 to 15 on a corresponding shoe sole.

[0087] Schematically illustrates an example of a trapdoor with an integrated locking bar for the shoe of the example of figures 13 to 15.

[0088] Schematically illustrates the installation of another example of a stabilizing compensating pad on the corresponding receiving surface of the walking sole.

[0089] Schematically illustrates another example of a stabilizing compensating pad on the corresponding receiving surface of the walking sole.

[0090] An example of a shoe 1 according to the invention has been shown in Figures 1 to 5.

[0091] The shoe 1 comprises a walking sole 10, an upper 20 and two stabilizing compensating pads 30: an internal stabilizing compensating pad marked 30-I and an external stabilizing compensating pad marked 30-E to differentiate them in figures 5 and 10 to 12.

[0092] Walking sole 10

[0093] With reference to the, the walking sole 10 comprises a lower surface 110 and a lateral surface 120 delimiting said lower surface 110.

[0094] Referring to Figures 1 and 2, the lower surface 110 includes a heel area 110T, a middle area 110M and a toe area 110P.

[0095] With reference to the, the middle zone 110M comprises two receiving surfaces 111: an internal receiving surface noted 111-I and an external receiving surface noted 111-E to differentiate them in figures 2 and 10 to 12.

[0096] The internal receiving surface 111-I extends in relief under the walking sole along the internal edge of the lateral surface 120, said external receiving surface 111-E extending in relief under the walking sole along the external edge of the lateral surface 120.

[0097] The term "internal" refers to the inside of the shoe, in the medical sense. The term "external" refers to the outside of the shoe, also in the medical sense.

[0098] The inner receiving surface 111-I is configured to receive and hold an inner stabilizing compensator pad 30-I and the outer receiving surface 111-E is configured to receive and hold an outer stabilizing compensator pad 30-E.

[0099] The receiving surfaces 111 may be at the same level as the other reliefs of the lower surface 110 of the walking sole 10 (as in the examples of FIGS. 11 and 12) or extend projecting relative to the other reliefs of the lower surface 110 of the walking sole 10 (as in the example of the), without this being limiting the scope of the present invention. When the receiving surfaces 111 extend projecting relative to the other reliefs of the lower surface 110 of the walking sole 10 (as in the example of the), the receiving surfaces 111 preferably extend by a height of between 0.5 and 1.5 mm, without this being limiting the scope of the present invention either.

[0100] Preferably, the inner receiving surface 111-I and the outer receiving surface 111-E are made of a multidirectional anti-slip material or comprise multidirectional anti-slip means.

[0101] Stem 20

[0102] The upper 20 comprises all of the elements of the upper of the shoe 1 (upper part of the shoe 1, above the walking sole 10) such as, for example, an upper, a tongue, eyelets, laces, etc. The upper 20 being known per se and not being the subject of the present invention, it will not be detailed further here.

[0103] Stabilizing compensator pad30

[0104] In the examples illustrated in Figures 3 to 12 and in a non-limiting manner, each stabilizing compensating pad 30 is in one piece.

[0105] With reference to figures 6 to 9, each stabilizing compensating pad 30 comprises a compensation portion 310 having an outer edge 310A, intended to be oriented towards the outside of the walking sole 10, and an inner edge 310B, intended to be oriented towards the inside of the walking sole 10.

[0106] In the advantageous embodiments illustrated in Figures 6 to 9, the outer edge 310A of the compensation portion 310 has a convex shape making it possible to increase the support surface of the shoe 1 towards the outside and therefore the stability of the shoe 1 and its wearer in an effective manner.

[0107] Preferably, as illustrated in the examples of figures 9 to 12, the inner edge 310B of the compensation portion 310 has a concave shape making it possible to increase the volume between the receiving surfaces 111 and between the stabilizing compensating pads 30 in order to better absorb shocks and evacuate liquid (for example water) or semi-solid (for example mud) or solid (for example gravel) materials.

[0108] The compensation portion 310 comprises an outer surface 311, visible in Figures 11 and 12, configured to come into contact with the ground, and an inner surface 312, visible in Figures 6 to 9, comprising at least one fixing member configured to fix the stabilizing compensating pad 30 on the corresponding receiving surface 111 of the walking sole 10 by interlocking.

[0109] Preferably, the outer surface 311 is multidirectional non-slip, for example by being made of a non-slip material and / or comprising reliefs in all directions.

[0110] In a first embodiment illustrated in , the inner surface 312 is flat and the fixing member comprises a single rim 313 extending over the entire periphery of the inner surface 312, i.e. over the four edges of the inner surface 312 of the compensation portion 310.

[0111] In another embodiment, illustrated in the, the inner surface 312 comprises two studs 314, for example made from the same material as said inner surface 312, each configured to be inserted into a complementary orifice of the receiving surface 111.

[0112] It goes without saying that different types of fixing members can be combined on the stabilizing compensating pad 30, for example at least one rim and at least one stud or any other type of suitable fixing member. For example, in the example of 1a, the stabilizing compensating pad 30 comprises a bead 324 and two studs 314.

[0113] In one embodiment illustrated in Figures 7 and 9 to 12, the stabilizing compensating pad 30 comprises a stabilizing portion 320 extending from the outer edge of the compensating portion 310 in a direction substantially orthogonal to the plane of said compensating portion 310.

[0114] Preferably and in the embodiments illustrated in Figures 6 to 12, the stabilizing compensating pad 30 is a single piece and the compensating portion 310 and the stabilizing portion 320 are made from the same material.

[0115] The stabilizing portion 320 is configured to conform to the lateral surface 120 of the walking sole 10 in order to bear against said lateral surface 120, thus fulfilling a lateral reinforcement function and increasing the support surface of the walking sole 10 and therefore the stability of the shoe 1 and its wearer.

[0116] In this example, the stabilizing portion 320 is in the form of a rim 322 of greater height than the rim 313 of the compensation portion 310 () or in the form of a bead 324 (figures 7, 11 and 12) whose section has a convex shape towards the outside and a concave shape towards the inside (i.e. towards the compensation portion 310) complementary to the convex shape of the corresponding portion of the lateral surface 120.

[0117] It should be noted that in the illustrated examples of the stabilizing compensating pad 30 comprising a stabilizing portion 320, said stabilizing portion 320 participates in the fixing members given that the receiving surface 111 would be blocked by fitting both by the rim 313 and by the stabilizing portion 320.

[0118] Alternatively or additionally, the fixing members may be fixing members between the stabilizing compensating pad 30 and the receiving surface 111. These members may be clippable or interlockable. For example, the receiving surface 111 may comprise one or more grooves on all or part of its periphery and the stabilizing compensating pad 30 may comprise one or more complementary ribs configured to be positioned in the groove(s) in order to clip the stabilizing compensating pad 30 onto the receiving surface 111. Alternatively or additionally, the receiving surface 111 may comprise one or more ribs on all or part of its periphery and the stabilizing compensating pad 30 may comprise one or more complementary grooves configured to be positioned in the groove(s) in order to clip the stabilizing compensating pad 30 onto the receiving surface 111.

[0119] Figures 13 to 15 show another embodiment of the stabilizing compensating pad 30. In this embodiment, the stabilizing compensating pad 30 clips onto the walking sole 10.

[0120] The internal stabilizing compensating pad 30-I and the external stabilizing compensating pad 30-E are each clipped onto one side of the tread 10 and are housed in an elongated cavity 122, in the shape of an airplane wing section, which has a rectangular orifice 124.

[0121] The internal stabilizing compensating pad 30-I and the external stabilizing compensating pad 30-E each comprise a compensating portion 310, a stabilizing portion 320 and an arrow-shaped clip-on fastening member 330 extending orthogonally inwardly projecting from the stabilizing portion 320. The fastening member 330 comprises a left portion 331 in the shape of a half-arrow and a right portion 332 also in the shape of a half-arrow. The left portion 331 and the right portion 332 are connected at their base but define a slot 333 opening at the tip of the arrow. A semicircular material recess 334 is also formed on each of the left portion 331 and the right portion 332 at the tip of the arrow.

[0122] In order to clip the internal stabilizing compensating pad 30-I and the external stabilizing compensating pad 30-E, the walking sole 10 comprises a rectangular housing 126 formed at the level of the median zone 110M and into which the two rectangular orifices 124 open.

[0123] Whatever the embodiment of the stabilizing compensating pad 30, with reference to the example of 1a, the inner surface 312 may comprise an adhesive element 316 distributed over said inner surface 312 for good adhesion of the stabilizing compensating pad 30 to the receiving surface 111.

[0124] The adhesive element 316 may be a self-adhesive material or a portion of self-adhesive material or any other suitable adhesive material. The self-adhesive material may be removable and reusable or durable (strong adhesive) depending on the intended duration of use.

[0125] In the case of a self-adhesive material, the adhesive element 316 may be protected by a removable or peelable protective layer 317, for example made of a plastic material. The protective layer 317 makes it possible to transport the stabilizing compensating pad 30 without the risk of it sticking to an external object. The protective layer 317 is removed just before mounting the stabilizing compensating pad 30 on the receiving surface 111.

[0126] Preferably, in order to correct most postural defects, the at least one stabilizing compensating pad 30 is configured to protrude at least 0.5 mm below the lower surface 110 of the walking sole 10 when the latter is in a straight and unstressed state. This allows for primary support at the medial area of ​​the shoe 1 to thereby enhance the overall stability of the wearer of said shoe 1.

[0127] In an embodiment illustrated in 1, the stabilizing compensating pad 30 comprises one or more orifices 350 (two orifices 350 in the example of 1) and is fixed to the lower surface 110 of the walking sole 10 by through screws 360. The screws 360 make it possible to adjust the height of the stabilizing compensating pad 30 depending on whether they are more or less screwed in, by creating a space between the stabilizing compensating pad 30 and the lower surface 110 of the walking sole 10.

[0128] In another embodiment illustrated in the, similar to that of the, the stabilizing compensating pad 30 comprises one or more orifices 350 (only one of which is visible in the) and is fixed on the lower surface 110 of the walking sole 10 by one or more through screws 360 (only one of which is visible in the). The screw head 360 is taken in a housing 100A of the walking sole 10 while being free to rotate. The screw 360 is screwed into a complementary thread made in the orifice 350 of the stabilizing compensating pad 30 in order to move the stabilizing compensating pad 30 away from or towards the lower surface 110 of the tread 10, creating a space 101 between the stabilizing compensating pad 30 and the lower surface 110 of the tread 10 when the stabilizing compensating pad 30 is moved away from the lower surface 110 by the screw 360.

[0129] Example of use

[0130] The internal stabilization compensating pad 30-I and the external stabilization compensating pad 30-E are chosen according to the compensation of the postural defect(s) to be corrected. For example, the internal stabilization compensating pad 30-I may be thicker than the external stabilization compensating pad 30-E in order to correct pronation or conversely the internal stabilization compensating pad 30-I may be thinner than the external stabilization compensating pad 30-E in order to correct supination. The thickness of the internal stabilization compensating pad 30-I is chosen according to the correction to be made to the posture: the greater the defect, the greater the thickness of one of the stabilization compensating pads 10 will be.

[0131] In the presence of a protective layer 317, said protective layer 317 is first removed (as illustrated in the).

[0132] Then, as illustrated in Figures 10 to 12, the internal stabilizing compensating pad 30-I is mounted by fitting the fixing members (rim 322 and stabilizing portion of the compensating portion onto the internal receiving surface 111-I).

[0133] The external stabilizing compensating pad 30-E is mounted by fitting the fixing members of the compensation portion onto the external receiving surface 111-E.

[0134] In the example of the, which describes the use of the stabilizing compensator pad of Figures 13 to 15, only the fixing member 330 of the internal stabilizing compensator pad 30-I and the fixing member 330 of the external stabilizing compensator pad 30-E are visible for the sake of clarity. In other words, the compensation portion 310 and the stabilizing portion 320 have not been shown.

[0135] Still with reference to the, in a step “01”, the fixing members 330 of the internal stabilizing compensating pad 30-I and of the external stabilizing compensating pad 30-E are brought closer to the rectangular orifices 124 of each cavity 122. In a step “02”, the left part 331 and the right part 332 of each fixing member 330 are compressed at the slot 333 so as to be brought closer together so that the tip of the arrow of each fixing member 330 is sufficiently narrow to pass through the rectangular orifice 124 of each cavity 122 (step “03”) before being released to allow the clipping of each fixing member 330 in the housing 126.Then, in a step “04”, a locking bar 400, the cross-section of which is H-shaped and comprising two half-cylinders 410 connected head to tail by a wall 420, is placed in the tips of the arrows of the fixing members 330 so that the two half-cylinders slide in the material recesses 334 to prevent the left part 331 and the right part 332 of each fixing member 330 from being separated, thus keeping the fixing members 330 clipped and locked in the housing 126 (step “05”). A hatch 500 forming part of the walking sole is then folded down to close the housing 126 in a step “06”.

[0136] Illustrates a hatch 500 comprising an integrated locking bar 400, for example made from the same material, steps “04”, “05” and “06” then being combined.

[0137] The invention therefore makes it possible to correct one or more postural defects of the wearer of the shoe in a simple, rapid and effective manner by adding one or more stabilizing compensating pads 30 of a thickness specific to said postural defect(s). In particular, the compensating portion makes it possible to compensate for a postural defect while providing stability to the ankle and midfoot depending on its thickness, while the stabilizing portion makes it possible to increase the stability, in particular lateral stability, of the ankle and midfoot of the wearer and the solidity of the attachment of the stabilizing compensating pad 30 to the walking sole 10.

Claims

Walking sole (10) for a shoe (1), said walking sole (10) comprising a lower surface (110) and a lateral surface (120), said lower surface (110) comprising a heel area (110T), a toe area (110P) and a medial area (110M) located between said heel area (110T) and said toe area (110P), said medial area (110M) comprising an internal receiving surface (111-I) and an external receiving surface (111-E), said internal receiving surface (111-I) extending in relief under the walking sole (10) along the internal edge of the lateral surface (120), said external receiving surface (111-E) extending in relief under the walking sole (10) along the external edge of the lateral surface (120),the walking sole (10) being characterized in that the internal receiving surface (111-I) is configured to receive and maintain an internal stabilizing compensating pad (30-I) and in that the external receiving surface (111-E) is configured to receive and maintain an external stabilizing compensating pad (30-E)., Walking sole (10) according to claim 1, wherein the internal receiving surface (111-I) comprises at least one attachment portion of an internal stabilizing compensating pad (30-I) and the external receiving surface (111-E) comprises at least one attachment portion of an external stabilizing compensating pad (30-E). Walking sole (10) according to the preceding claim, in which the fixing portion corresponds to the surface which is intended to come into contact with the ground and which is configured to receive an adhesive element. Walking sole (10) according to any one of the preceding claims, wherein the fixing portion comprises at least one groove configured to receive at least one complementary rib. A walking sole (10) according to any preceding claim, wherein the fastening portion comprises at least one rib configured to receive at least one complementary groove. Walking sole (10) according to any one of the preceding claims, wherein the inner receiving surface (111-I) and the outer receiving surface (111-E) are identical in shape and dimensions, preferably symmetrical with respect to the longitudinal axis of the walking sole. A walking sole (10) according to any preceding claim, wherein the inner receiving surface (111-I) and the outer receiving surface (111-E) each have a convex outer edge. Shoe (1) comprising a walking sole (10) according to any one of the preceding claims and an upper (20) fixed on said walking sole (10). Shoe (1) according to the preceding claim, further comprising an internal stabilizing compensating pad (30-I) fixed on the internal receiving surface (111-I) and / or an external stabilizing compensating pad (30-E) fixed on the external receiving surface (111-E), said internal stabilizing compensating pad (30-I) and said external stabilizing compensating pad (30-E) being identical or different. Shoe (1) according to the preceding claim, in which the internal stabilizing compensating pad (30-I) is fixed to the internal receiving surface (111-I) by complementary fixing members and / or the external stabilizing compensating pad (30-E) is fixed to the external receiving surface (111-E) by complementary fixing members. Shoe (1) according to the preceding claim, in which the complementary fixing members are of the clip-on type. Shoe (1) according to claim 10, in which the complementary fixing members are of the interlocking type. Shoe (1) according to any one of claims 9 to 12, wherein the internal stabilizing compensating pad (30-I) is fixed on the internal receiving surface (111-I) by means of an adhesive element and / or the external stabilizing compensating pad (30-E) is mounted on the external receiving surface (111-E) by means of an adhesive element. Shoe (1) according to the preceding claim, in which the adhesive element is a glue, a self-adhesive material or a strip of self-gripping material. Stabilizing compensating pad (30) for a walking sole (10) of a shoe (1), said walking sole (10) comprising a lower surface (110) and a lateral surface (120), said lower surface (110) comprising a heel zone (110T), a middle zone (110M) and a toe zone (110P), said middle zone (110M) comprising at least one receiving surface (111), the stabilizing compensating pad (30) comprising a compensating portion (310), said compensating portion (310) comprising an outer surface (311) configured to come into contact with the ground and an inner surface (312) comprising at least one fixing member (313, 314) configured to fix the stabilizing compensating pad (30) on said at least one receiving surface (111) by interlocking.

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