Tread sole for shoe, shoe including the same, and stabilization compensating overshoe

Abstract

This invention relates to a tread sole for footwear, a shoe including the tread sole, and a stability compensation overshoe. The tread sole includes a lower surface and side surfaces. The lower surface includes a heel area, a toe area, and a middle area. The middle area includes an inner receiving surface and an outer receiving surface. The inner receiving surface extends protruding beneath the tread sole along the inner edge of the side surface, and the outer receiving surface extends protruding beneath the tread sole along the outer edge of the side surface. The inner receiving surface is configured to receive and hold an inner stability compensation overshoe, and the outer receiving surface is configured to receive and hold an outer stability compensation overshoe.

Description

Tread soles for overshoe stability shoes The present invention relates to the field of shoes, and more particularly to a tread sole configured to receive at least one stabilizing compensating overshoe, and a shoe comprising such a tread sole and such a stabilizing compensating overshoe. Gait and balance disorders are common in the elderly and are associated with the aging of gait and balance effector cells, which are associated with several diseases and their treatment. The combined effects of aging and the onset of various age-related diseases explain the balance and gait disorders common in the elderly. In fact, sarcopenia and changes in muscle composition (fat cells > myocytes) caused by aging are detrimental to muscle function, especially when such changes in muscle composition are associated with sedentary behavior and undernourishment. Osteoarthritis, osteoporosis, and sedentary behavior that affects the osteoarticular system will also affect balance. The impact of these disorders on the elderly is twofold. On the one hand, loss of independence is directly related to these disorders (primarily gait disorders), which may partially or completely jeopardize the independence of the elderly, whether going out for shopping or performing daily posture. On the other hand, these disorders are the cause of falls, which are particularly serious in the elderly. These can lead to direct consequences such as hospitalization and surgery, and indirect consequences such as loss of independence and the need to go to a nursing home. The causes of these gait disorders are diverse, and the means to correct them are usually orthopedic shoes, orthoses, simple poles, poles, tripod poles, walkers, chairs, etc. However, orthotic shoes offer only very limited improvement, and other solutions (especially orthoses, simple bars, poles, tripod poles, walkers, chairs, etc.) can limit the independence of older people. Several solutions have been devised to improve the stability of the wearer of a shoe. For example, document EP 0,811,330 describes a shoe particularly suitable for running that includes stabilization means. The sole of the shoe comprises an undersole, a midsole that is softer than the undersole, a heel lift, an inner surface, and an outer surface. The outer surface includes a concavely rounded portion extending downward along one side of the sole. The concavely rounded portion includes a portion formed by the midsole, which extends below the end area on one side of the sole. This allows the rounded portion to easily deform and flatten under the load of the user's weight during lateral movement of the sole, thereby providing better lateral stability. Although this type of sole improves the damping effect of the foot during sports practice, it does not satisfactorily improve the stability of the ankle or midfoot. Another solution disclosed in WO 2013 / 095709 describes a shoe having a forefoot portion, a center portion, and a heel portion, and comprising a sole having a base layer, a heel pedestal extending from the base layer, a lateral stabilizer pedestal extending from the base layer and positioned at least partially beneath the cuboid bone, and a medial stabilizer pedestal extending from the base layer and positioned at least partially beneath the navicular bone. When the legs move, the weight of a person wearing the shoe is supported on at least the heel pedestal, the lateral stabilizer pedestal, and the medial stabilizer pedestal, thereby transferring the person's weight from the heel pedestal to the lateral stabilizer pedestal and the medial stabilizer pedestal. The heel pedestal, the stabilizer pedestal, and the medial stabilizer pedestal comprise an outsole and a compressible base layer positioned between the outsole and the wearer's foot. Likewise, although this type of sole improves the shock absorption effect of the heel, it does not satisfactorily improve the stability of the ankle or midfoot due to the heel base. In order to remedy these drawbacks and to provide stability not only when walking but also when in a static standing position, the applicant has invented a sole for a shoe comprising specific stabilizing means as described in French patent FR 3 069 419 B1. In this solution, the sole comprises at least one lower sole portion comprising a convex toe box, a convex top lift, a so-called inner surface extending on the medial side from the top lift to the toe box of the sole and comprising a concave or straight portion at the midfoot, and a so-called outer surface extending on the lateral side from the top lift to the toe box of the sole and comprising a concave portion at the midfoot. In addition, the sole includes at least two medial stabilization elements and a lateral stabilization element, and a so-called second lateral stabilizer element, wherein the at least two medial stabilization elements and the lateral stabilization element extend from the inner surface at the middle of the foot and have a concave edge, and the second lateral stabilizer element extends from the outer surface at the middle of the foot and has a concave edge on the lower surface of the medial stabilizer element, and when the lower sole is in a straight and unloaded state, the lateral stabilizer element extends between 0.5 mm and 1.5 mm below the lower surface of the lower sole. In an alternative embodiment, the central area of ​​the sole includes a recess in which a single-piece U-shaped portion can be positioned, the U-shaped portion including the medial and lateral stabilizing elements on its ground-contacting surface. However, such a U-shaped portion may, on the one hand, affect the flexibility of the sole during a stride, and, on the other hand, may not provide sufficient stability for each individual taking into account their specific limitations. None of the shoe solutions described in the prior art can correct the specific postural defects of the wearer of said shoe and, moreover, said shoe solutions are usually implemented using orthotic soles and thus involve high costs and significant complexity. Therefore, a simple and effective solution is needed to overcome at least some of these disadvantages. To this end, one object of the present invention is first of all a shoe tread sole, the tread sole comprising a lower surface and a side surface, the lower surface comprising a heel area, a toe area and a middle area located between the heel area and the toe area, the middle area comprising an inner receiving surface and an outer receiving surface, the inner receiving surface protruding and extending under the tread sole along the inner edge of the side surface, the outer receiving surface protruding and extending under the tread sole along the outer edge of the side surface, the tread sole being characterized in that the inner receiving surface is configured to receive and retain an inner stabilizing compensating overshoe and the outer receiving surface is configured to receive and retain an outer stabilizing compensating overshoe. The term "tread sole" means the outermost portion of the shoe which provides the necessary traction and protection for the floor surface with which the shoe comes into contact, said tread sole possibly being multi-layered (ISO 20345:2021(fr) - Personal protective equipment - Safety shoes). The sole according to the present invention makes it possible to correct specific postural defects (e.g., pronation or supination) using stabilizing overshoes attached along the inner and / or outer edges of the tread sole, while ensuring stability for the shoe wearer. Furthermore, depending on the number and thickness of each overshoe, the sole according to the present invention makes it possible to correct postural defects of varying severity or importance. The sole according to the present invention makes it possible to compensate for the shoe wearer's posture between the ankle joint and the midfoot (i.e., vertical alignment relative to the center of gravity), thereby improving ankle and midfoot stability. Preferably, the tread sole (especially the receiving surface) is made of a semi-rigid plastic material. Preferably, the peripheral edge of each receiving surface is angled (ie not rounded), preferably at an angle of approximately 90°. In one embodiment, each receiving surface has an angled scalloped shape to improve support and increase stability. According to one aspect of the invention, the inner receiving surface includes at least one attachment portion for attaching an inner stabilizing compensating overshoe, and the outer receiving surface includes at least one attachment portion for attaching an outer stabilizing compensating overshoe. The attachment portion may, for example, extend over the entire perimeter of the receiving surface or, for example, extend along opposing sides to fully attach the overshoe. In one embodiment, the attachment portion corresponds to a surface that will come into contact with the ground and is configured to receive an adhesive element (eg, a glue type, a self-adhesive element, or a press tape). Alternatively or additionally, the attachment portion comprises one or more grooves configured to receive one or more complementary ribs. Alternatively or additionally, the attachment portion comprises one or more ribs configured to receive one or more complementary grooves. The cross section of the groove-rib connection may for example take the form of a dovetail, the rib being clamped into the groove by deformation and press-fitting, the attachment means of the overshoe being deformable. Advantageously, the inner and outer receiving surfaces are identical in shape and size, so that the same stabilizing compensating overshoe can be mounted on both surfaces without distinction. In other words, the same stabilizing compensating overshoe model can be used to compensate the sole both from the inside and from the outside, thereby making the use of the shoe more convenient. More advantageously, the inner receiving surface and the outer receiving surface are symmetrical to each other, ie are placed symmetrically with respect to the longitudinal axis of the tread sole, so as to further improve the stability of the foot. Preferably, the inner receiving surface and the outer receiving surface each have a convex outer edge. The present invention also relates to a shoe comprising the tread sole and an upper attached to the tread sole. The term "upper" refers to one or more parts of a shoe that cover the toes, top of the foot, sides of the foot, and optionally the back of the heel. For example, the upper is attached to the tread sole by gluing or sewing, or by sewing and gluing (ISO 20345:2021 (fr) - Personal protective equipment - Safety shoes). Advantageously, the shoe further comprises an inner stabilizing compensating overshoe attached to the inner receiving surface and / or an outer stabilizing compensating overshoe attached to the outer receiving surface. Preferably, the stabilizing compensating overshoe protrudes at least 0.5 mm below the lower surface of the tread sole when the tread sole is in a straight and unloaded condition. The same shoe can include an inner stabilizing overshoe and an outer stabilizing overshoe that are identical or different (particularly in terms of shape or size, particularly thickness) in order to compensate for specific postural deficiencies (e.g., a tendency of the foot to pronate or supinate in a suitable manner, or even a short leg), while ensuring stability for the wearer of the shoe. The two shoes in a pair of shoes can have stabilizing overshoes of different thicknesses in order to compensate for specific deficiencies specific to the wearer of the shoe. In one embodiment, the tread sole of a shoe includes a first medial lateral stabilizer element and a second lateral stabilizer element, the ground contact area of ​​the first medial lateral stabilizer element including an inner receiving surface, the ground contact area of ​​the second lateral stabilizer element including an outer receiving surface, the inner stabilizing compensating overshoe being mounted to the inner receiving surface, and the outer stabilizing compensating overshoe being mounted to the outer receiving surface, and when the tread sole is in a straight and unloaded state, the inner stabilizing compensating overshoe and the outer stabilizing compensating overshoe protrude at least 0.5 mm below the lower surface of the tread sole. Even more advantageously, the inner stabilizing compensating overshoe is attached to the inner receiving surface via complementary attachment means and / or the outer stabilizing compensating overshoe is attached to the outer receiving surface by means of complementary attachment means. In one embodiment, the complementary attachment members are of the clip-on type. In another embodiment, the complementary attachment members are of a mating type. In another embodiment, the inner stabilizing compensating overshoe is attached to the inner receiving surface via adhesive elements and / or the outer stabilizing compensating overshoe is mounted to the outer receiving surface via adhesive elements. Preferably, the adhesive element is glue, a self-adhesive material or a pressing tape. The present invention also relates to a stabilizing compensating overshoe for a shoe tread sole, the tread sole comprising a lower surface and side surfaces, the lower surface comprising a heel region, a middle region, and a toe region, the middle region comprising at least one receiving surface, the stabilizing compensating overshoe comprising a compensating portion comprising an outer surface configured to contact the ground and an inner surface comprising at least one attachment member, the at least one attachment member being configured to attach the stabilizing compensating overshoe to the at least one receiving surface by mating. The stabilizing compensating overshoe according to the present invention makes it possible to correct specific postural defects (e.g., pronation or supination) while maintaining stability for the shoe wearer, depending on its attachment location beneath the tread sole. Furthermore, depending on its thickness, the stabilizing compensating overshoe according to the present invention makes it possible to correct postural defects of varying severity or importance. The stabilizing compensating overshoe according to the present invention makes it possible to compensate for the shoe wearer's posture. By extending from the ankle joint to the midfoot (i.e., vertically aligned with the center of gravity), it improves ankle and midfoot stability. According to one aspect of the present invention, the compensating portion includes an outer edge oriented outward relative to the tread sole and an inner edge oriented inward relative to the tread sole. Advantageously, the outer edge of the compensating portion has a convex shape for increasing the contact surface of the shoe outwards and thus effectively improving the stability of the shoe and its wearer. Preferably, the inner edge of the compensation portion has a concave shape for increasing the volume between the receiving surfaces and between the stabilizing compensation overshoes for better shock absorption and drainage of liquid materials such as water or semi-solid materials such as mud or solid materials such as gravel. The stabilizing compensating overshoe may be an inner stabilizing compensating overshoe configured to attach to a receiving surface on an inner side of the middle region or an outer stabilizing compensating overshoe configured to attach to a receiving surface on an outer side of the middle region. In one embodiment, the compensation portion extends in a plane parallel to the receiving surface and the ground when the shoe is placed on the ground in the use position and is not mechanically stressed or subjected to forces. For example, depending on the nature of the receiving surface of the shoe, the thickness of the compensating portion is between 0.5 mm and 10 mm to compensate for most foot posture defects. In one embodiment, the interior surface of the compensating portion is planar. Alternatively, the interior surface may be configured to conform to the protrusions of the receiving surface to enable proper positioning of the stabilizing compensating overshoe on the receiving surface. Preferably, the outer surface of the compensating wall comprises a multi-directional anti-slip coating. In one embodiment, the at least one attachment member comprises at least one rim extending at least partially around the interior surface. In one embodiment, the compensating portion comprises a single attachment member consisting of a rim. Preferably, the rim extends over at least three sides of the interior surface. In one embodiment, the rim extends on all four sides of the interior surface. In one embodiment, the at least one attachment member comprises at least one post. In one embodiment, the post has a cylindrical shape with a circular cross-section. In another embodiment, the stud has the shape of a tab or a rib or a flange, or any other shape of protrusion suitable for allowing connection by fitting or interlocking. In one embodiment, the at least one attachment member comprises two posts. In one embodiment, the at least one attachment member comprises at least one rim and at least one post. In one embodiment, the interior surface of the compensating portion comprises at least one adhesive element. 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 overshoe to be transported without the risk of it getting stuck to foreign objects. The protective layer is removed before the stabilizing compensating overshoe is mounted on the receiving surface. Advantageously, said at least one adhesive element is distributed over the entire interior surface. Preferably, the interior surface of the compensating portion comprises a single adhesive element. Advantageously, the stabilizing compensating overshoe comprises a stabilizing portion extending from an outer edge of the compensating portion and configured to fit to a side surface of the tread sole. The term “external edge” means the edge of the compensation portion intended to be placed on the side surface of the tread sole. The stabilizing portion includes an outer surface and an inner surface configured to contact a side surface of the tread sole. Advantageously, the stabilizing portion may comprise adhesive elements on its inner surface in order to securely attach the stabilizing compensating overshoe to said side surface. Alternatively or additionally, the stabilizing portion may include at least one mating element configured to mate to a complementary portion of a side surface of the tread sole. Preferably, the outer edge of the compensating portion has a convex shape. More preferably, the compensating portion and the stabilizing portion are manufactured as one piece. In one embodiment, the stabilizing compensating overshoe is unitary. Preferably, when the stabilizing compensating overshoe is attached to the receiving surface of the tread sole, the outer surface of the compensating portion protrudes at least 0.5 mm below the lower surface of the tread sole when the tread sole is in a straight and unloaded condition. An exemplary shoe 1 according to the present invention is shown in Figures 1 to 5. The shoe 1 comprises a tread sole 10 , an upper 20 and two stabilizing compensating overshoes 30 . To distinguish the two stabilizing compensating overshoes 30 in FIG. 5 and FIG. 10 to FIG. 12 , the inner stabilizing compensating overshoe is marked as 30 -I and the outer stabilizing compensating overshoe is marked as 30 -E. Tread sole 10 1 , the tread sole 10 includes a lower surface 110 and side surfaces 120 defining the lower surface 110 . 1 and 2 , the lower surface 110 includes a heel area 110T, a middle area 110M, and a toe area 110P. 2 , the middle region 110M includes two receiving surfaces 111 : in order to distinguish the two receiving surfaces 111 in FIG. 2 and FIG. 10 to FIG. 12 , the inner receiving surface is labeled 111 -I and the outer receiving surface is labeled 111 -E. The inner receiving surface 111 -I protrudes and extends under the tread sole along the inner edge of the side surface 120 , and the outer receiving surface 111 -E protrudes and extends under the tread sole along the outer edge of the side surface 120 . The term "inner" refers to the inside of a shoe in the medical sense of the term. The term "outer" also refers to the outside of a shoe in the medical sense of the term. The inner receiving surface 111-I is configured to receive and retain the inner stabilizing compensating overshoe 30-I, and the outer receiving surface 111-E is configured to receive and retain the outer stabilizing compensating overshoe 30-E. The receiving surface 111 may be located at the same level as other reliefs on the lower surface 110 of the tread sole 10 (as in the examples shown in Figures 11 and 12 ), or may extend in a protruding manner relative to the other reliefs on the lower surface 110 of the tread sole 10 (as in the example shown in Figure 1 ), but the scope of the present invention is not limited thereto. When the receiving surface 111 extends in a protruding manner relative to the other reliefs on the lower surface 110 of the tread sole 10 (as in the example shown in Figure 1 ), the receiving surface 111 preferably extends to a height between 0.5 mm and 1.5 mm, but the scope of the present invention is not limited thereto. Preferably, the inner receiving surface 111 -I and the outer receiving surface 111 -E are made of a multi-directional anti-slip material or include multi-directional anti-slip tools. Upper 20 The upper 20 includes all elements of the top portion of the shoe 1 (the top part of the shoe 1 above the tread sole 10 ), such as, for example, the vamp, the tongue, the eyelets, the laces, etc. Since the upper 20 itself is known and is not the subject of the present invention, it will not be described in detail herein. Stability compensation overshoes 30 In the example shown in Figures 3-12 and by way of non-limiting example, each stabilizing compensating overshoe 30 is unitary. 6 to 9 , each stabilizing compensating overshoe 30 includes a compensating portion 310 including an outer edge 310A oriented outward relative to the tread sole 10 and an inner edge 310B oriented inward relative to the tread sole 10 . In the advantageous embodiment shown in Figures 6 to 9, the outer edge 310A of the compensation portion 310 has a convex shape for increasing the load-bearing surface area of ​​the shoe 1 outwards and thus effectively improving the stability of the shoe 1 and the wearer. Preferably, as shown in the examples of Figures 9 to 12, the inner edge 310B of the compensation portion 310 has a concave shape for increasing the volume between the receiving surface 111 and between the stabilizing compensation overshoe 30 to better absorb shock and discharge liquid materials (such as water) or semi-solid materials (such as mud) or solid materials (such as gravel). The compensating portion 310 includes an outer surface 311 visible in Figures 11 and 12 and an inner surface 312 visible in Figures 6 to 9, wherein the outer surface 311 is configured to contact the ground and the inner surface 312 includes at least one attachment member, which is configured to attach the stabilizing compensating overshoe 30 to the corresponding receiving surface 111 of the tread sole 10 by mating. Preferably, the outer surface 311 is a multi-directional anti-slip surface, which is, for example, made of an anti-slip material and / or has protrusions in all directions. In the first embodiment shown in FIG. 6 , the interior surface 312 is planar and the attachment member includes a single rim 313 that extends over the entire perimeter of the interior surface 312 , ie, over four edges of the interior surface 312 of the compensating portion 310 . In another embodiment shown in FIG. 8 , the interior surface 312 includes two studs 314 , for example made in one piece with the interior surface 312 , each of the two studs 314 being configured to be inserted into a complementary port of the receiving surface 111 . It goes without saying that different types of attachment members (e.g., at least one edge 312 and at least one post 314 or any other suitable type of attachment member) can be combined on the stabilizing compensating overshoe 30. For example, in the example shown in FIG12 , the stabilizing compensating overshoe 30 includes a rolled edge 324 and two posts 314. In one embodiment shown in FIGS. 7 and 9 to 12 , the stabilizing compensating overshoe 30 includes a stabilizing portion 320 extending from an outer edge of the compensating portion 310 in a direction substantially orthogonal to the plane of the compensating portion 310 . Preferably, and in the embodiment shown in Figures 6 to 12, the stabilizing compensating overshoe 30 is unitary, with the compensating portion 310 and the stabilizing portion 320 being made as one piece. The stabilizing portion 320 is configured to fit to the side surface 120 of the tread sole 10 to abut against the side surface 120, thereby achieving a lateral reinforcement function and increasing the load-bearing surface area of ​​the tread sole 10, and thus improving the stability of the shoe 1 and the wearer. In this example, the stabilizing portion 320 is in the form of an edge 322 that is higher than the edge 313 of the compensating portion 310 ( FIG. 9 ), or in the form of a curled edge 324 ( FIGS. 7 , 11 , and 12 ), the cross-section of which has an outwardly convex shape and an inwardly concave shape that complements the convex shape of the corresponding portion of the side surface 120 (i.e., relative to the compensating portion 310 ). It should be noted that the example of the stabilizing compensating overshoe 30 shown includes a stabilizing portion 320 that participates in the attachment means under the assumption that the receiving surface 111 would be blocked by the cooperation of both the rim 313 and the stabilizing portion 320 . Alternatively or additionally, the attachment means may be attachment means between the overshoe 30 and the receiving surface 111. These means may be clamping or mating. For example, the receiving surface 111 may include one or more grooves on all or part of its periphery, and the overshoe 30 may include one or more complementary ribs configured to be positioned in the grooves to clamp the overshoe 30 to the receiving surface 111. Alternatively or additionally, the receiving surface 111 may include one or more ribs on all or part of its periphery, and the overshoe 30 may include one or more complementary grooves configured to be positioned in the grooves to clamp the overshoe 30 to the receiving surface 111. 13 to 15 show another embodiment of the stabilizing compensating overshoe 30. In this form of construction, the stabilizing compensating overshoe 30 is clamped onto the tread sole 10. The inner stabilizing compensating overshoe 30 -I and the outer stabilizing compensating overshoe 30 -E are each clamped from one side of the tread sole 10 into an elongated cavity 122 shaped like an airplane wing section and having a rectangular hole 124 . Each of the internal stabilizing compensating overshoe 30-I and the external stabilizing compensating overshoe 30-E has a decorative portion 310, a stabilizing portion 320, and an arrow-shaped clip-on attachment member 330 that protrudes inwardly and orthogonally from the stabilizing portion 320. The attachment member 330 is composed of a left portion 331 in the shape of a semi-arrow and a right portion 332, also in the shape of a semi-arrow. The left and right portions 331 and 332 are connected at their bases but define a slot 333 extending toward the level of the arrows. As is apparent at the level of the arrow tips, a semicircular material 334 is also formed on each of the left and right portions 331 and 332. In order to clamp the inner stabilizing compensating overshoe 30 -I and the outer stabilizing compensating overshoe 30 -E, the tread sole 10 has a rectangular shell 126 formed at the middle region 110M and the two rectangular ports 124 open toward the rectangular shell 126 . Regardless of the embodiment of the stabilizing compensating overshoe 30 , referring to the example shown in FIG. 9 , the inner surface 312 may include adhesive elements 316 distributed thereon for proper adhesion of the stabilizing compensating overshoe 30 to the receiving surface 111 . The adhesive element 316 can be a self-adhesive material or a portion of a hook and loop material or any other suitable adhesive material. Depending on the intended use time, the self-adhesive material can be removable and reusable, or permanent (super glue). In the case of self-adhesive materials, the adhesive element 316 can be protected by a removable or peelable protective layer 317, for example made of a plastic material. The protective layer 317 allows the stabilizing compensating overshoe 30 to be transported without the risk of sticking to foreign objects. The protective layer 317 is removed before the stabilizing compensating overshoe 30 is mounted on the receiving surface 111. Preferably, in order to correct for most posture defects, the at least one stabilizing compensating overshoe 30 is configured to protrude at least 0.5 mm below the lower surface 110 of the tread sole 10 when the tread sole 10 is in a straight and unloaded state. This places the primary weight-bearing area in the central region of the shoe 1, thereby enhancing the overall stability of the wearer of the shoe 1. In the embodiment shown in FIG18 , the stabilizing compensating overshoe 30 has one or more holes 350 (two holes 350 in the example shown in FIG18 ) and is attached to the lower surface 110 of the tread sole 10 by means of through-screws 360. The screws 360 allow the height of the stabilizing compensating overshoe 30 to be adjusted depending on whether the screws 360 are screwed in more or less, thereby forming a gap between the stabilizing compensating overshoe 30 and the lower surface 110 of the tread sole 10. In another embodiment shown in FIG19 , similar to the embodiment shown in FIG18 , a stabilizing compensating overshoe 30 has one or more holes 350 (only one hole 350 is visible in FIG19 ) and is attached to the lower surface 110 of the tread sole 10 by one or more through-screws 360 (only one through-screw 360 is visible in FIG19 ). The screw heads 360 are received in slots 100A in the tread sole 10 while freely rotating. The screws 360 are screwed into additional threads in the holes 350 of the stabilizing compensating overshoe 30 to move the stabilizing compensating overshoe 30 away from the lower surface 110 of the tread sole 10, thereby forming a gap 101 between the stabilizing compensating overshoe 30 and the lower surface 110 of the tread sole 10 when the stabilizing compensating overshoe 30 is moved away from the lower surface 110 by the screws 360. Use Case The internal stabilizing compensating overshoe 30-I and the external stabilizing compensating overshoe 30-E are selected based on the compensation of the postural defect to be corrected. For example, the internal stabilizing compensating overshoe 30-I can be thicker than the external stabilizing compensating overshoe 30-E to correct pronation, or conversely, the internal stabilizing compensating overshoe 30-I can be thinner than the external stabilizing compensating overshoe 30-E to correct supination. The thickness of the internal stabilizing compensating overshoe 30-I is selected based on the postural correction to be made: the greater the defect, the thicker the stabilizing compensating overshoe 10 should be. In the case where the protective layer 317 is present, it is first removed (as shown in FIG. 9 ). Then, as shown in FIG. 10 to FIG. 12 , the inner stabilizing compensating overshoe 30 -I is installed by fitting the attachment means (rim 312 and the stabilizing portion of the compensating portion) onto the inner receiving surface 111 -I. The outer stabilizing compensating overshoe 30 -E is installed by fitting the compensating portion's attachment features onto the outer receiving surface 111 -E. In the example shown in FIG16, which illustrates the use of the stabilizing compensating overshoe 30 of FIG13 to FIG15, only the attachment members 330 of the inner stabilizing compensating overshoe 30-I and the attachment members 330 of the outer stabilizing compensating overshoe 30-E are visible for clarity. In other words, the compensating portion 310 and the stabilizing portion 320 are not shown. 16 , in step “01,” the attachment members 330 of the internal stabilizing compensating overshoe 30-I and the external stabilizing compensating overshoe 30-E are brought into proximity with the rectangular port 124 of each cavity 122. In step “02,” the left portion 331 and the right portion 332 of each attachment member 330 are compressed at the slot 333 so that the arrowhead tip of each attachment member 330 is narrow enough to pass through the rectangular hole 124 of each cavity 122 before being released (step “03”), thereby enabling each attachment member 330 to be clamped into the housing 126. Then, in step "04," a locking rod 400, which has an H-shaped cross-section and includes two semi-cylinders 410 connected end-to-end by a wall 420, is placed in the arrow of the attachment member 330. The two semi-cylinders slide into the exposed material 334 to prevent the left portion 331 and the right portion 332 of each attachment member 330 from disengaging, thereby retaining the attachment member 330 clamped and locked in the compartment 126 (step "05"). In step "06," a trap door 500, which forms part of the tread, is then folded downward to close the housing 126. FIG. 17 shows a hatch 500 with an integrated locking bar 400 in conjunction with steps “04”, “05” and “06”. The locking bar 400 is made of the same material, for example. Thus, the present invention makes it possible to correct one or more postural defects of a shoe wearer in a simple, quick, and efficient manner by adding one or more stabilizing compensating overshoes 30 of a specific thickness to the postural defects. Specifically, the compensating portion compensates for the postural defect while providing ankle and midfoot stability, depending on its thickness, while the stabilizing portion improves the stability of the wearer's ankle and midfoot (particularly lateral stability) and enhances the attachment strength of the stabilizing compensating overshoe 30 to the tread sole 10. 01, 02, 03, 04, 05, 06: Step 1: Shoe 10: Tread Sole 20: Upper 30: Stabilizing Compensating Overshoe / Overshoe 30-E: External Stabilizing Compensating Overshoe / External Stabilizing Compensating Overshoe 30-I: Internal Stabilizing Compensating Overshoe / Inner Stabilizing Compensating Overshoe 100A: Slot 101: Gap 110: Lower Surface 110M: Middle Area / Middle Region 110P: Toe Area 110T: Heel Area 111: Receiving Surface 111-E: External Receiving Surface 111-I: Internal Receiving Surface 120: Side Surface 122: Cavity 124: Rectangular Hole / Rectangular Port 126: Rectangular Shell / Closed Shell / Shell / Compartment 300: Compensating portion 310: Compensating portion / decorative portion 310A: Outer edge 310B: Inner edge 311: Outer surface 312: Inner surface / rim 313: Attachment member / rim 314: Attachment member / post 316: Adhesive element 317: Protective layer 320: Stabilizing portion 322: Rim 324: Bead 330: Attachment member 331: Left portion / Left section 332: Right portion / Right section 333: Slot 334: Material 350: Hole 360: Screw / Screw head 400: Integrated locking lever / locking lever 410: Semi-cylinder 420: Wall 500: Trap cover / opening Further features and advantages of the present invention will become apparent upon reading the following description. This is purely illustrative and should be read in conjunction with the accompanying drawings, in which: FIG1 is a side view of an exemplary shoe according to the present invention, comprising two receiving surfaces for two stabilizing compensating overshoes. FIG2 schematically illustrates, in bottom view, an embodiment of a tread sole according to the present invention, which is the tread sole of the shoe shown in FIG1 . FIG3 schematically illustrates an embodiment of a shoe according to the present invention, wherein the visible stabilizing compensating overshoe does not include a stabilizing portion. FIG4 schematically illustrates an embodiment of a shoe according to the present invention, wherein the visible stabilizing compensating overshoe includes a stabilizing portion. FIG5 illustrates the tread sole of FIG2 , wherein an inner stabilizing compensating overshoe and an outer stabilizing compensating overshoe are attached to the inner receiving surface and an outer receiving surface, respectively. FIG6 schematically illustrates an embodiment of a stabilizing compensating overshoe according to the present invention, wherein the stabilizing compensating overshoe has a peripheral edge and does not have a stabilizing portion. FIG7 schematically illustrates an embodiment of a stabilizing compensating overshoe according to the present invention, wherein the stabilizing compensating overshoe has a peripheral edge and a stabilizing portion. FIG8 schematically illustrates an embodiment of a stabilizing compensating overshoe according to the present invention, which lacks a peripheral edge and a stabilizing portion and includes two mating posts. FIG9 schematically illustrates an embodiment of a stabilizing compensating overshoe according to the present invention, which has a peripheral edge, a stabilizing portion, an adhesive element, and a protective layer. FIG10 schematically illustrates, in side view, the placement of an exemplary stabilizing compensating overshoe according to the present invention. FIG11 schematically illustrates the placement of an exemplary stabilizing compensating overshoe on a corresponding receiving surface of a tread sole. FIG12 schematically illustrates the placement of another exemplary stabilizing compensating overshoe on a corresponding receiving surface of a tread sole. FIG13 schematically illustrates the placement of another exemplary stabilizing compensating overshoe on a corresponding receiving surface of a tread sole. FIG14 schematically illustrates the shoe of the example shown in FIG13 without the stabilizing compensating overshoe. FIG15 schematically illustrates the shoe of the example shown in FIG13 with the stabilizing compensating overshoe attached to the shoe sole. FIG16 schematically illustrates the installation of two stabilizing compensating overshoes according to the examples shown in FIG13 to FIG15 on corresponding tread soles. FIG17 schematically illustrates an example of an opening with an integrated locking lever for the shoe of the examples of FIG13 to FIG15. FIG18 schematically illustrates placement of another exemplary stabilizing compensating overshoe on a corresponding receiving surface of a tread sole. FIG19 illustrates another example of a stabilizing compensating overshoe positioned on a corresponding receiving surface of a tread sole. 1: Shoes 10: Tread sole 20: Upper 30-E: External stabilization compensation overshoes / External stabilization compensation overshoes 30-I: Internally stabilized compensating overshoes / Internally stabilized compensating overshoes 110: lower surface 111-E: External receiving surface 120: side surface 310: Compensation part / decorative part 311:External surface 313: Attachment member / edge 324: Curled Edge

Claims

1. A tread sole for a shoe, the tread sole comprising a lower surface, a side surface, and a upper surface, the lower surface having a length axis, the upper surface being relative to the lower surface, the side surface including an inner edge and an outer edge, the lower surface including a heel area, a toe area, and an intermediate area located between the heel area and the toe area, the intermediate area including an unconnected inner receiving surface and an outer receiving surface, the inner receiving surface extending protruding beneath the tread sole along the inner edge of the side surface, the outer receiving surface extending protruding beneath the tread sole along the outer edge of the side surface, and wherein the inner receiving surface is configured to receive and retain an inner stability compensation overshoe, and the outer receiving surface is configured to receive and retain an outer stability compensation overshoe.

2. The tread sole as claimed in claim 1, wherein the inner receiving surface includes at least one attachment portion for attaching the inner stability compensation overshoe, and the outer receiving surface includes at least one attachment portion for attaching the outer stability compensation overshoe.

3. The tread sole as claimed in claim 2, wherein the at least one attachment portion corresponds to a surface configured to contact the ground and configured to receive an adhesive element.

4. The tread sole as claimed in claim 1, wherein the at least one attachment portion includes at least one groove configured to receive at least one complementary rib.

5. The tread sole as claimed in claim 1, wherein the at least one attachment portion includes at least one rib configured to receive at least one complementary groove.

6. The tread sole as claimed in claim 1, wherein the inner receiving surface and the outer receiving surface are identical in shape and size.

7. The tread sole as claimed in claim 1, wherein the inner receiving surface and the outer receiving surface each have a convex outer edge.

8. The tread sole as claimed in claim 1, wherein the inner receiving surface extends outwardly from the upper surface along the inner edge of the side surface, and the outer receiving surface extends outwardly from the upper surface along the outer edge of the side surface.

9. The tread sole as claimed in claim 1, wherein the inner receiving surface extends in a projecting manner away from the length direction axis along the inner edge of the side surface, and the outer receiving surface extends in a projecting manner away from the length direction axis along the outer edge of the side surface.

10. A shoe comprising a tread sole as described in claim 1 and an upper attached to the tread sole.

11. The shoe as claimed in claim 10, further comprising the inner stability compensation overshoe attached to the inner receiving surface and / or the outer stability compensation overshoe attached to the outer receiving surface, the inner stability compensation overshoe being the same as or different from the outer stability compensation overshoe.

12. The shoe as claimed in claim 11, wherein the inner stability compensation overshoe is attached to the inner receiving surface by means of complementary attachment members, and / or the outer stability compensation overshoe is attached to the outer receiving surface by means of other complementary attachment members.

13. A stabilizing overshoe for a shoe tread sole, the tread sole including a lower surface, a side surface, and a upper surface, the lower surface having a longitudinal axis, the upper surface being relative to the lower surface, the lower surface including a heel area, a mid-section area, and a toe area, the mid-section including at least one receiving surface, the at least one receiving surface projecting outwardly extending away from at least one of the upper surface and the longitudinal axis, the stabilizing overshoe including a compensating portion, the compensating portion including an outer surface configured to contact the ground and an inner surface including at least one attachment member, the at least one attachment member being configured to attach the stabilizing overshoe to the at least one receiving surface by means of engagement.

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